Engine main hook module, speed changing box clamping module, front axle lifting hook module and engine power assembly lifting appliance comprising engine main hook module, speed changing box clamping module and front axle lifting hook module

Abstract

The invention relates to an engine main hook module, a gearbox clamping module, a front axle lifting hook module and an engine power assembly lifting tool integrated with the engine main hook module, the gearbox clamping module and the front axle lifting hook module. The engine main hook module is used for hoisting an engine, and is characterized by comprising two cross beams which are transversely fixed below a main longitudinal beam relative to the main longitudinal beam of a main structural frame of the engine lifting appliance when the engine main hook module is mounted on the engine lifting appliance; the chain connecting plate is connected between the two cross beams in the longitudinal direction in the mode that the chain connecting plate can synchronously and transversely move along the two cross beams. The upper ends of the plurality of chains are connected to the chain connecting plate, and the lower ends of the plurality of chains are connected to the hook part, so that the chain connecting plate can drive the plurality of chains and the hook part to transversely move relative to the main longitudinal beam. By means of the transverse movable arrangement, the gravity center of the engine is easy to adjust, and therefore it can be ensured that the gravity centers of all types of engines are located on the center of the carrying lifting appliance after the engines are lifted.

Description

Technical Field

[0001] The present application relates to the field of engine assembly, in particular to an engine powertrain hanger, and also specifically to an engine main hook module, a gearbox clamping module and a front axle hook module for the engine powertrain hanger. Background Art

[0002] Motor vehicle assembly, especially engine assembly, is generally carried out in the final assembly workshop using a parts modularization process. Currently, an engine hoist is used to hoist the engine for transportation during this process. However, this hoist has a single purpose and a relatively simple structure.

[0003] For some types of vehicles, especially longitudinally mounted rear-wheel drive vehicles, it is necessary to pre-assemble the engine and transmission unit together on the pre-assembly line, and then position and fasten the entire unit on the front axle before pre-assembling peripheral components such as generators, differentials, and sensors. The above-mentioned single engine hanger is obviously not suitable.

[0004] Therefore, there is a need for an engine assembly hoist that can simultaneously suspend the engine, gearbox, and front axle to carry them to the required workstations along the conveyor line. In other words, it is necessary to provide an engine assembly hoist that can suspend the engine, gearbox, and front axle assembly. It can transport the engine, gearbox unit, and front axle to the powertrain line during the engine assembly process.

[0005] This type of spreader is generally fastened to a transport spreader, which is an automatic transport spreader that can automatically rise and fall and move, and automatically runs along a running track. Summary of the invention

[0006] To this end, the present application specifically proposes an engine main hook module, a gearbox clamping module and a front axle hook module for an engine powertrain hoist and an engine powertrain hoist integrating these modules, which is an integrated assembly hoist that can simultaneously hoist the engine, gearbox and front axle assembly, which is fixed under the transport hoist and lifted by the transport hoist.

[0007] In a first aspect, the present application proposes an engine main hook module for hoisting an engine, characterized in that the engine main hook module comprises: two cross beams, which are used to be transversely fixed under the main longitudinal beams of the main structural frame of the engine hoist relative to the main longitudinal beams when the engine main hook module is installed on the engine hoist; a chain connecting plate, which is longitudinally connected between the two cross beams in a manner that can synchronously move laterally along the two cross beams; a plurality of chains and a hook part, wherein the plurality of chains are connected to the chain connecting plate at the upper end and to the hook part at the lower end, so that the chain connecting plate can drive the plurality of chains and the hook part to move laterally relative to the main longitudinal beam.

[0008] When the main hook module is integrated into the engine hoist, the engine center of gravity can be easily adjusted by means of the laterally movable setting, thereby ensuring that the center of gravity of each type of engine is on the center of the transport hoist after being lifted, thereby ensuring the overall smooth operation of the engine hoist during transportation by the transport hoist.

[0009] Advantageously, a slide rail is arranged laterally on the lower surface of the two cross beams connected to the chain connecting plate, and a slider is arranged on the upper surface of the chain connecting plate facing the cross beam, and the slider is engaged with the slide rail, thereby allowing the chain connecting plate and the associated chain and hook part to slide synchronously laterally along the two cross beams.

[0010] Advantageously, the chain link plate has a main body in the form of a rectangular flat plate, which is followed at one end by a narrower end portion narrowing relative to the main body and at the opposite end by a wider end portion widening relative to the main body.

[0011] Advantageously, the plurality of chains include at least three so-called outer force chains, wherein the first and second outer force chains are connected to both outer sides of the wider end portion of the chain connecting plate, and the third outer force chain is connected to the narrower end portion of the chain connecting plate.

[0012] Advantageously, the plurality of chains further include at least two safety chains referred to as inner safety chains, wherein the first inner safety chain is between the first and second outer force-bearing chains and connected to approximately the middle of the main body end adjacent to the wider end portion, and the second inner safety chain is approximately aligned with the third outer force-bearing chain in the longitudinal direction and connected to approximately the middle of the main body end adjacent to the narrower end portion.

[0013] Advantageously, the engine main hook module further comprises a lateral position adjustment device for allowing the lateral position of the hook portion to be manually adjusted relative to the front ear hole of the engine to be hoisted and locking the adjusted position.

[0014] Advantageously, the lateral position adjustment device comprises: a rack arranged along a lateral edge of a crossbeam associated with the narrower end portion of the chain connecting plate; an adjustment rod passing through and fixed at the narrower end portion of the chain connecting plate to which the third external force-bearing chain is connected, and the head of the adjustment rod extends out of the chain connecting plate to engage the rack.

[0015] Advantageously, the head of the adjusting rod is provided with a tooth block, which is used to engage with the rack so that the adjusting rod is pulled down to separate the teeth of the tooth block from the rack, thereby allowing the chain connecting plate and the connected chain and hook part to slide laterally relative to the main longitudinal beam as a whole to adjust their lateral position. When the adjusting rod is released, the teeth of the tooth block engage with the rack to lock it.

[0016] Advantageously, the hook portion comprises a main hook and a connecting block connecting the main hook to the lower end of the chain.

[0017] Advantageously, the connecting block comprises a wider square portion, a narrower square portion, and a truncated cone portion connecting the wider square portion and the narrower square portion.

[0018] Advantageously, the connecting block has three open slots at the longitudinal end of the wider square portion for respectively connecting the first and second outer force chains and the second inner safety chain, and has an open slot at the longitudinal end of the narrower square portion for connecting the third outer force chain and the first inner safety chain.

[0019] Advantageously, the connecting block also has a central hole for the main hook rod head to pass through and extend above the connecting block.

[0020] Advantageously, the engine main hook module further comprises at least two return springs for allowing the hook part to hang loosely in the air when not in operation and for tensioning the hook part in the front ear hole of the engine when in operation.

[0021] Advantageously, the connecting block has a lifting eye on the upper surface, and the two return springs are connected to the chain connecting plate at the upper end and to the lifting eye at the lower end.

[0022] Advantageously, the hook portion further comprises a main hook clamping plate, which cooperates with the main hook neck through a clamping hole below the connecting block to press the main hook neck.

[0023] Advantageously, the main hook clamping plate has a square surface for the clamping hole for cooperating with the main hook, and the main hook neck has a square surface at the clamped position. The square surface of the clamping hole and the square surface of the main hook neck are pressed against each other through interference fit, so that the main hook clamping plate and the main hook are relatively fastened.

[0024] Advantageously, the main hook clamping plate is in the form of two clamping blocks, which are fixedly connected to form a clamping hole with a square surface that cooperates with the main hook neck with a square surface.

[0025] Advantageously, the hook portion further comprises a spring locking piece, which is pivotally mounted on one of the two clamping blocks and contacts the end of the main hook at the lower end to block the main hook opening.

[0026] In a second aspect, the present application also proposes a gearbox clamping module, characterized in that the gearbox clamping module includes: a bracket, used to be connected to the main longitudinal beam of the engine hanger in a swingable manner; a sliding assembly, slidably connected to the bracket; a scissors-type clamping claw assembly, fixedly connected to the sliding assembly, which can be driven by the sliding assembly to slide integrally relative to the bracket, and is used to clamp the gearbox by cooperating with the gearbox lifting ear hole.

[0027] With the aid of the gearbox clamping module of the present application, on the one hand, the appropriate position of the clamping module can be adjusted according to different gearbox lengths by swinging and sliding; on the other hand, when it is assembled on the engine hanger, the scissor-type structure also allows the operator to clamp and lock both sides synchronously during the clamping process.

[0028] Advantageously, the bracket comprises: a cylindrical transverse tube for passing through the two sides of the main longitudinal beam and connected to the main longitudinal beam in a swingable manner; two side plates, fixed at the upper ends to the two lateral ends of the transverse tube; and a back plate fixed to the backs of the two side plates.

[0029] Advantageously, the sliding assembly comprises: a slider fixed on the front side of the back plate; a slide rail fixed at the lower end to the scissor-type clamp assembly, the slide rail being slidably engaged with the slider to drive the scissor-type clamp assembly to slide integrally relative to the bracket.

[0030] Advantageously, the gearbox clamping module also includes a limit assembly, which includes: a stop block fixed to the upper end of the slide rail; and a stop arm fixed to one of the two side plates, for cooperating with the stop block to limit the downward sliding stroke of the slide rail along the slider, thereby limiting the downward sliding travel of the scissors-type clamp assembly.

[0031] Advantageously, the limit assembly also includes a sliding stroke adjustment device, which includes: a disc-shaped member fixed to one of the two side plates and equipped with a plurality of stop arms of different lengths; an adjustment knob, which is installed through the disc-shaped member so that rotating the adjustment knob can drive the disc-shaped member to rotate, so as to select a stop arm of a desired length to cooperate with the stop block.

[0032] Advantageously, the gearbox clamping module further comprises two return springs, which are fixedly connected at upper ends to the transverse side surfaces of the two side plates and at opposite lower ends to the scissor-type clamping jaw assembly below.

[0033] Advantageously, the two side surfaces are respectively an inner side surface and an outer side surface of the two side plates.

[0034] Advantageously, the gearbox clamping module further comprises a storage component for hanging the gearbox clamping module in an inclined state on the main longitudinal beam when the gearbox clamping module is not in operation.

[0035] Advantageously, the storage component comprises a transverse pin fixed to the stopper, which is used to be hooked by a hook arranged on the main longitudinal beam when the gearbox clamping module is not working, so as to hold the entire gearbox clamping module tilted relative to the main longitudinal beam.

[0036] Advantageously, the scissor-type jaw assembly comprises: a lower jaw portion; an upper mechanism for locking and releasing the jaw portion, which is used to allow the jaw portion to be locked in place when the jaw portion is working and to allow the jaw portion to be released when the jaw portion needs to be opened; and an operating mechanism on the lateral side, which is used to operate the closing of the jaw portion and the opening of the jaw portion.

[0037] Advantageously, the operating mechanism includes a closing control mechanism for controlling the closing of the jaw part, which is pivotally connected to the jaw part; and an opening control mechanism for controlling the opening of the jaw part, which is associated with the mechanism for locking and releasing the jaw part, so that once the opening control mechanism is actuated, it drives the mechanism for locking and releasing the jaw part to move, thereby allowing the jaw part to open.

[0038] Advantageously, the mechanism for locking and releasing the jaw portion comprises: a serrated card plate, which is fixedly connected to the opening control mechanism at the upper part and has a plurality of serrations on the lower serrated surface, wherein the plurality of serrations rise in a step-like manner from one lateral side toward the direction close to the opening control mechanism to the other lateral side; and an axle pin, which is arranged to cooperate with the serrations on the lower serrated surface of the serrated card plate, so that on the one hand, the jaw portion can be closed or opened and locked in place, and on the other hand, the opening and closing angles of the jaw portion can be controlled by engaging with the serrations at different heights.

[0039] Advantageously, the jaw portion comprises two generally inverted L-shaped jaw branches that are pivotally connected to each other, each jaw branch comprising: a generally vertical arm; an arm that is laterally inwardly and upwardly inclined; and a laterally horizontal clamping pin that is arranged at the end of the generally vertical arm; the two clamping pins extend laterally relative to each other; and the upwardly inclined arm of one jaw branch is pivotally connected to the upwardly inclined arm of the other jaw branch.

[0040] Advantageously, the closing control mechanism for controlling the closing of the clamping jaw portion is in the form of a handle portion pivotally connected to the corresponding clamping jaw branch.

[0041] Advantageously, the closing control mechanism for controlling the closing of the clamping jaw portion is two handle portions, which are symmetrically arranged on the transverse outer sides relative to the two clamping jaw branches and are pivotally connected to the two clamping jaw branches.

[0042] Advantageously, each handle portion comprises a clamping handle which extends vertically approximately parallel to the approximately vertical arm of the clamping jaw branch and is fixedly connected to the clamping pin of the clamping jaw portion on the transverse outer side, and is used for pre-clamping the clamping pin in the gearbox lifting ear hole by pushing the clamping handle inward on both transverse sides when the clamping pin is inserted into the gearbox lifting ear hole.

[0043] Advantageously, each handle portion also includes a tensioning handle integral with the clamping handle, each tensioning handle including a transversely approximately horizontal section and a handshake section extending vertically upward and laterally outwardly, the clamping handle extending approximately vertically below the approximately horizontal section, the tensioning handle being pivotally connected to the upwardly inclined support arm of the corresponding clamping jaw branch through the approximately horizontal section.

[0044] Advantageously, the jaw portion and the handle portion are integrally connected to the mechanism for locking and releasing the jaw portion, so that when the clamping handle is pushed inward to pre-tighten the clamping pin in the gearbox lifting ear hole, the axial pin of the mechanism for locking and releasing the jaw portion descends along the teeth of the serrated clamping plate.

[0045] Advantageously, the opening control mechanism for controlling the opening of the clamping jaw portion includes a handle portion and a linkage rod, a serrated clamping plate is fixed to the lower portion of the linkage rod, and the handle portion and the linkage rod are arranged so that when the handle portion is pulled laterally outward, the linkage rod is linked to drive the serrated clamping plate to move in the opposite direction in the laterally direction, so that the axle pin is separated from the serrated clamping plate, thereby allowing the clamping jaw portion to open.

[0046] Advantageously, the handle portion includes a substantially vertical handle and a horizontal rod connected to the handle; the opening control mechanism for controlling the opening of the clamping jaw portion also includes an intermediate connecting rod for pivotally connecting the horizontal rod and the linkage rod of the handle portion, so that when the handle is pulled laterally outward, the intermediate connecting rod pivotally connected to the horizontal rod at the lower end drives the linkage rod pivotally connected to its upper end, thereby driving the serrated clamping plate to move in the opposite direction along the lateral direction.

[0047] Advantageously, the intermediate interface component is arranged between the slide rail and the scissor-type clamping jaw assembly, the slide rail is fixedly connected to the upper part of the intermediate interface component, and the intermediate interface component is provided with a slide groove component at a transverse end for the linkage rod to slide through.

[0048] Advantageously, a tension spring is further provided between the sliding assembly and the scissor-type jaw assembly, the tension spring being fixedly connected to the back plate at an upper end and to the scissor-type jaw assembly at a lower end.

[0049] Advantageously, the scissor-type clamp assembly further comprises two front and rear outer connecting plates symmetrically arranged in the longitudinal direction, and the two upwardly inclined arms of the clamp portion can be pivotally clamped between the two outer connecting plates; and the roughly horizontal section of each tensioning handle and the upwardly inclined arms are also pivotally clamped between the two outer connecting plates.

[0050] Advantageously, a bearing member is integrally or attached to the middle upper edge of each outer connecting plate, for carrying an axle pin cooperating with the serrated clamping plate through the upper end groove.

[0051] Advantageously, each outer connecting plate is provided with a plurality of through holes, for different axle pins to pass through the through holes on the outer connecting plate, and to align with the corresponding through holes on the upwardly inclined arms of the handle portion and the clamping claw portion, and the axle pins are fastened with locking nuts at both ends of the outer side, so that the clamping claw portion and the handle portion can pivot around the corresponding axle pin relative to the outer connecting plate when opening and closing.

[0052] Advantageously, the scissor-type clamp assembly further comprises two front and rear L-shaped upper connecting plates arranged symmetrically in the longitudinal direction, the two L-shaped upper connecting plates being fixed at the upper ends to the front and rear surfaces of the intermediate interface component, with the bearing member being sandwiched between them, and the L-shaped upper connecting plate being connected to the corresponding outer connecting plate at the lower end in a manner allowing the outer connecting plate to move up and down.

[0053] Advantageously, each L-shaped upper connecting plate comprises: a vertical plate portion, which is provided with a vertical long groove at the upper end portion, and the axle pins cooperating with the serrated clamping plate are received in the vertical long groove at both ends thereof, so that they can move up and down in the long groove when the clamping jaw portion is opened and closed; a transverse plate portion, which is provided with a horizontal long groove along the transverse direction, and the two ends of the axle pin of the horizontal rod passing through the opening control mechanism are accommodated in the horizontal long groove, so that when the opening control mechanism is actuated, its horizontal rod can move along the horizontal long groove.

[0054] Advantageously, a vertical lower elongated groove is provided on the outer connecting plate, which is vertically aligned with the axle pin accommodated in the vertical upper elongated groove. The axle pin passes through the through hole of the L-shaped upper connecting plate and the vertical lower elongated groove and the roughly transverse elliptical hole at the inner end of the inclined support arm of the clamping claw branch, and is fastened with locking nuts at both ends of the outer side, so that when the axle pin slides up and down along the vertical upper elongated groove of the L-shaped upper connecting plate, the axle pin on the L-shaped upper connecting plate synchronously slides up and down along the vertical lower elongated groove on the outer connecting plate.

[0055] In the third aspect, the present application also proposes a front axle hook module, characterized in that the front axle hook module includes two side hook systems for hanging the steering knuckle of the front axle of the motor vehicle, which are used to be symmetrically fixed on both sides of the main longitudinal beam when the front axle hook module is integrated into the engine hanger; each side hook system is a pivotable system, so that it can be folded, stowed and unfolded for operation.

[0056] The hook module, especially the side hook system thereof, is convenient for changing the configuration when in operation and when not in operation. In particular, it can be folded up when not in use, thereby saving space and ensuring stable operation of the lifting device.

[0057] Advantageously, each side hook system comprises: a fixed part to be fixed to the side of the main longitudinal beam; a movable part connected to the fixed part so as to be pivotable relative to the fixed part; and a hook mechanism carried by the movable part.

[0058] Advantageously, the fixing part comprises a mounting seat and a fixing arm fixedly connected to the mounting seat, and the side hook system is to be fixed to the side surface of the main longitudinal beam through the mounting seat.

[0059] Advantageously, the movable portion comprises a movable arm which can be mounted relative to the fixed arm so as to be pivotally movable between a retracted position folded upward and inward and a position extended downward and outward.

[0060] Advantageously, the fixed arm comprises an inclined arm portion fixedly connected to the mounting seat and a horizontal arm portion horizontally extending toward the movable arm.

[0061] Advantageously, one of the female connector and the male connector is fixed to the horizontal arm end of the fixed arm, the other of the female connector and the male connector is fixed to the movable arm end facing the horizontal arm end, the male connector is inserted into the female connector and connects the movable arm to the horizontal arm of the fixed arm in a manner allowing the movable arm to pivot upward and inward relative to the fixed arm.

[0062] Advantageously, the pin passes through corresponding through holes of the male connector and the female connector and is locked with a locking nut so that the movable arm can pivot upward and inward relative to the fixed arm about the pin.

[0063] Advantageously, the side hook system further comprises an actuating mechanism for controlling the folding and unfolding of the movable arm relative to the fixed arm, wherein one end of the actuating mechanism is connected to the mounting seat and the other end is connected to the movable arm.

[0064] Advantageously, the actuating mechanism is a gas spring, the tube end joint of the gas spring is connected to the mounting seat, and the rod end joint of the piston rod of the gas spring is connected to the movable arm, so that the movable arm is automatically opened when the hook mechanism is in use and automatically folded and retracted when not in use.

[0065] Advantageously, the hook mechanism is arranged at the outer end portion of the movable arm.

[0066] Advantageously, the hook mechanism comprises: a side hook device having a chain and a hook carried by the chain for hanging the front axle steering knuckle; and a connecting component for connecting the side hook device with the movable support arm.

[0067] Advantageously, the connecting component comprises two connecting plates, which are symmetrically fixed to two longitudinal sides of the movable arm in a manner of clamping the movable arm, and the support member of the load-bearing side hook device is fixed to the lower part of one connecting plate.

[0068] Advantageously, the support member carrying the side hook device comprises a cylindrical sleeve fixed to the lower part of the connecting plate, the shaft rod passes through the sleeve and protrudes at both ends, and the side hook device is fixedly connected to the protruding outer end of the shaft rod.

[0069] Advantageously, the hook mechanism further comprises a hook locking device for locking the hook when the hook is hooked into the hole on the front axle steering knuckle to prevent the hook from falling out of the hole.

[0070] Advantageously, the hook locking device comprises: a control rod mechanism which can rotate between a vertical upright position when not in operation and a longitudinal horizontal position when in operation; and a limiting device which is used to cooperate with the control rod mechanism in the longitudinal horizontal position so as to limit the control rod mechanism.

[0071] Advantageously, the limiting device is in the form of a bent plate, which is fixedly connected to the inner side of a connecting plate to which the sleeve is fixed, and comprises: a vertical plate portion, which extends vertically downward on a longitudinal side of the movable support arm and is provided with a hole and a limiting block facing the control rod mechanism; a horizontal plate portion, which extends longitudinally and horizontally under the movable support arm and protrudes on the opposite longitudinal side of the movable support arm, and the horizontal plate portion is provided with a hole. When the control rod mechanism is in an upright position, the pin head member is inserted into the hole of the horizontal plate portion.

[0072] Advantageously, the control lever mechanism comprises an axle pin, a control member and a spring, and the axle pin, the control member and the spring are arranged so that when the control lever mechanism is in an upright position, the control member is pulled down to drive the axle pin to move downward, so that the pin head member disengages from the hole in the horizontal plate portion, thereby allowing the control lever mechanism to be rotated 90 degrees upward in a direction close to the horizontal plate portion. At this time, the limit block of the vertical plate portion abuts the control lever mechanism, and the control member is released, so that the pin head member is inserted into the hole in the vertical plate portion, thereby tensioning the hook inserted into the hole on the front axle steering knuckle.

[0073] Advantageously, the control lever mechanism also includes a hollow shell, and the shaft passing through the sleeve is fixed to the upper end portion of the shell when the control lever mechanism is in an upright position at the inner end opposite to the outer end fixedly connected to the side hook device; the axle pin extends in the inner cavity of the shell; the spring is arranged in the space between the lower end of the axle pin and the lower end of the shell; the control member passes through the elongated opening provided on the lower end wall of the shell transversely relative to the shell, and at the same time passes through the through hole provided on the lower end wall of the axle pin and protrudes at both ends thereof, so that the control member can drive the axle pin to move downward along the elongated opening when being pulled down, and the axle pin is reset by the spring when the control member is released.

[0074] Advantageously, the chain of the side hook device carries, in addition to the hook for the front axle steering knuckle, also a clamp for another type of front axle.

[0075] Advantageously, the side hook system further comprises a retaining device for holding the movable arm in place when the movable arm is folded into place.

[0076] Advantageously, the clamping device comprises: a roughly U-shaped clamping piece, which is arranged on the fixed support arm; a cylindrical component, which is arranged on the movable support arm; the U-shaped clamping piece and the cylindrical component cooperate so that when the movable support arm is folded upward and inward into place, the cylindrical component is inserted into and clamped in the U-shaped seat groove of the clamping piece.

[0077] Advantageously, the side hook system further comprises a storage member for storing the hook when the hook mechanism is not in use.

[0078] Advantageously, the storage member comprises a profiled member arranged on the movable arm, and a foam block arranged on the upper portion of the movable arm adjacent to the profiled member and on the outside, thereby forming a storage space between the profiled member and the foam block that can accommodate a hook for the front axle steering knuckle.

[0079] Advantageously, the front axle hook module further comprises a front hook system for hanging a front axle crossbeam of a motor vehicle; when the front axle hook module is integrated into the engine hanger, the front hook system is installed at the front end of the main longitudinal beam of the engine hanger.

[0080] Advantageously, the front hook system comprises a base for fixing at the front end of the main longitudinal beam when installed on the main longitudinal beam, a front hook device arranged relative to the base so as to be adjustable in vertical height, and a connecting plate for connecting the front hook device and the base.

[0081] Advantageously, the front hook device comprises a chain connected to the lower portion of the connecting plate, and a hook connected to the chain.

[0082] Advantageously, the front hook arrangement comprises a plurality of different hooks for different front axle types, said plurality of different hooks being carried by a common hook support rod and connected to the chain lower end via said hook support rod.

[0083] Advantageously, the front hook system comprises an adjustment mechanism for adjusting the height of the front hook device.

[0084] Advantageously, the adjustment mechanism comprises a sliding device and a position adjustment device.

[0085] Advantageously, the sliding device comprises: a slide rail provided on the base and extending vertically; and a slider provided on the inner surface of the connecting plate facing the base and used for engaging with the slide rail on the base.

[0086] Advantageously, the position adjustment device includes: a positioning plate, which is arranged on the base parallel to the slide rail and opposite to the slide rail, and a plurality of positioning holes are vertically arranged on the positioning plate; a plunger, which passes through the opening of the plate portion of the connecting plate located above the positioning plate, can be inserted into a positioning hole among the plurality of positioning holes on the positioning plate and loosened therefrom, so that the plunger is disengaged from a positioning hole, allowing the connecting plate to slide vertically along the slide rail to adjust the height of the front hook device and then tighten the plunger into the positioning hole of the corresponding height to lock it.

[0087] Finally, the present application proposes an engine powertrain hoist, comprising a main structural frame with a main longitudinal beam, characterized in that the engine powertrain hoist comprises: the engine main hook module as described above; the gearbox clamping module as described above; and the front axle hook module as described above; the front hook system of the front axle hook module is installed at the front end of the main longitudinal beam, the engine main hook module is adjacent to the front hook system and is installed under the main longitudinal beam at the front of the main longitudinal beam, the gearbox clamping module is installed at the rear of the main longitudinal beam, and the two side hook systems of the front axle hook module are behind the engine main hook module and are symmetrically fixed on both sides of the main longitudinal beam.

[0088] According to the integrated engine powertrain hoist provided in the present application, multiple integrated parts assemblies, namely the engine, gearbox and front axle assembly, can be hoisted as a whole through a set of hoists, thereby saving time and cost and improving workshop assembly efficiency.

[0089] Advantageously, the engine powertrain lifting device further comprises a safety hook system for hooking on the rear ear hole of the engine.

[0090] Advantageously, the safety hook system is installed under the main longitudinal beam between the front engine main hook module and the rear gearbox clamping module.

[0091] Advantageously, the safety hook system is installed under the main longitudinal beam so as to be movable in the longitudinal direction relative to the main longitudinal beam.

[0092] Advantageously, the safety hook system comprises: a longitudinal support beam for fixing under the main longitudinal beam; a transverse bracket installed transversely relative to the longitudinal support beam so as to be movable longitudinally along the longitudinal support beam; and a safety hook device fixed under the transverse bracket.

[0093] Advantageously, the longitudinal support beam is integrated with slide rails on its two longitudinal side surfaces, and the transverse hanger is able to slide longitudinally along the longitudinal support beam by engaging with the two longitudinal slide rails through two corresponding sliding block members at its upper portion.

[0094] Advantageously, the safety hook device comprises: a chain hanging seat fixed on the lower surface of the transverse hanging frame; a safety chain hook assembly, the safety chain hook assembly is fixedly connected to the chain hanging seat through a safety chain, and the safety hook is hung on the lower end of the safety chain.

[0095] Advantageously, the carabiner system comprises a plurality of carabiner devices with different carabiners.

[0096] Advantageously, there are two of the plurality of safety hook devices, one of which has a safety chain hook assembly hung under its chain hanger, and the other of which has two safety chain hook assemblies hung under its chain hanger, and the safety hooks in the three safety chain hook assemblies are different from each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0097] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same parts. In addition, the various features of the drawings discussed below are not necessarily drawn to scale. The sizes of the various features and elements in the drawings may be enlarged or reduced to more clearly illustrate the embodiments of the present application. In the drawings:

[0098] Figure 1An overall three-dimensional view of an integrated engine powertrain hanger according to an embodiment of the present application as viewed from the front side is shown.

[0099] Figure 2 An overall three-dimensional view of an integrated engine powertrain hanger according to an embodiment of the present application as viewed from the rear side is shown.

[0100] Figure 3 A bottom view of an integrated engine powertrain hanger according to an embodiment of the present application is shown.

[0101] Figure 4 A separate perspective view of an engine main hook system according to an embodiment of the present application is shown.

[0102] Figure 5 Show Figure 4 Bottom view of the engine main hook system shown.

[0103] Figure 6 Show Figure 3-5 A side view of the engine main hook system shown in FIG. 1 , viewed from one lateral side.

[0104] Figure 7 Show Figure 3-5 A longitudinal view of the engine main hook system shown in FIG.

[0105] Figure 8 yes Figure 3 A detailed enlarged view of the circled portion I of FIG.

[0106] Fig. 9 A perspective view of a gearbox clamping system according to an embodiment of the present application is shown as seen from the front side, that is, from the rear side relative to the longitudinal direction.

[0107] Fig.10 Show Fig. 9 The transmission clamping system is shown in a perspective view of the transmission clamping system alone, viewed from the rear, ie from the front in a longitudinal direction.

[0108] Fig.11 for Fig. 9 The gearbox clamping system is shown as seen from the front, with some external components omitted to facilitate viewing of the internal structure.

[0109] Fig.12 The figure shows an overall three-dimensional view of an engine powertrain hanger according to another embodiment of the present application as viewed from the rear side, in which a gearbox clamping system hung on a main longitudinal beam hook can be seen.

[0110] Fig.13 Schematic diagram showing the perspective view of the two front axle swan neck hitch systems in the deployed position.

[0111] Fig.14express Fig.13 Here is a schematic diagram of the swan neck hitch system of the right front axle as seen from the longitudinal front side.

[0112] Fig.15 Schematic diagram showing two separate front axle swan neck hitch systems secured to the main longitudinal beam in a folded and stowed position.

[0113] Fig.16 A schematic cross-sectional view of a push rod for locking the hook in a front axle swan neck hook system.

[0114] Fig.17 A perspective view of an isolated front hook system for a front axle cross member of a motor vehicle is shown.

[0115] Fig.18 Shows a separate perspective view of the safety hook system. Specific embodiments

[0116] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0117] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0118] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0119] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0120] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0121] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0122] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0123] In the field of automobile manufacturing, especially for engine assembly, in order to hoist multiple integrated parts assemblies through a set of hoists, an assembly hoist is proposed that integrates the engine hoisting, gearbox hoisting and front axle assembly hoisting together. Then, it is suspended by a transport hoist and moved along the running track of the workshop to be transferred to the relevant subsequent workstations.

[0124] The integrated engine powertrain sling will be described in detail below in conjunction with the accompanying drawings. However, it should be noted that each individual modular system integrated into the assembly sling can still be used and protected separately.

[0125] See also Figure 1 , which shows an overall stereoscopic view of the integrated engine powertrain hanger 1 according to the present application as viewed from the front side.

[0126] The engine powertrain sling 1 includes a main structural frame having a main beam 2 in a square tubular shape, and also includes an engine main hook system 3, a gearbox clamping system 4 and a front axle hook system. The front axle hook system includes: a hook system 5 for a front axle steering knuckle of a motor vehicle, commonly known as a front axle swan neck hook system; and two front axle hook systems 6 for hanging a front axle cross beam of a motor vehicle.

[0127] For the sake of clarity, the length direction of the main beam 2 is defined as the longitudinal direction, so the main beam is also called the main longitudinal beam 2. The engine main hook system 3, the front axle hook system and the gearbox clamping system 4, which will be described in detail below, are assembled to the main longitudinal beam in the longitudinal direction. The direction of the width of the main longitudinal beam perpendicular to the length of the main longitudinal beam is called the transverse direction. The cross beam referred to below is a beam extending in the transverse direction perpendicular to the main longitudinal beam, and the length of the cross beam is the length in the transverse direction relative to the length of the main longitudinal beam.

[0128] In addition, as for the engine powertrain hoist as a whole, the front axle hook system for hanging the front axle cross beam of the motor vehicle is fixed to one end of the main longitudinal beam, which is called the front end of the main longitudinal beam, and the front axle hook system for hanging the front axle cross beam of the motor vehicle is the front hook system 6. The hook system 5 for the front axle steering knuckle of the motor vehicle, commonly known as the front axle swan neck hook system, is the side hook system 5 for the front axle steering knuckle.

[0129] Furthermore, unless otherwise specified, the terms upper (square, part, side), lower (square, part, side), front (square, part, side), rear (square, part, side), left (square, part, side), right (square, part, side), etc. mentioned below are all in the assembled state after each system has been installed on the powertrain hanger. In particular, the orientation relative to the longitudinal direction is called front (square, part, side) and rear (square, part, side), and the orientation relative to the transverse direction is called left (square, part, side) and right (square, part, side). The direction perpendicular to the transverse direction and perpendicular to the longitudinal direction is called the vertical direction or the vertical direction. The orientation relative to the vertical direction is called upper (square, part, side) and lower (square, part, side).

[0130] In other words, the orientation or position relationship used to indicate the embodiments of the present application is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0131] Combination Figure 1-3 It can be seen that: the front hook system 6 for the front axle crossbeam is installed at the front end of the main longitudinal beam 2; the engine main hook system 3 is located adjacent to the front hook system 6 and is fixed to the bottom of the main longitudinal beam 2 by means of two crossbeams 31 and 32 perpendicular to the main longitudinal beam 2; the two front axle swan neck hook systems 5 are symmetrically installed on both sides of the main longitudinal beam 2 behind the engine main hook system 3; the gearbox clamping system 4 is installed on the rear part of the main longitudinal beam 2, see Figure 1 and 3 .

[0132] In addition from Figure 2-3 It can also be seen in the drawing that the safety hook system 7 is mounted to the main longitudinal beam 2 between the gearbox clamping system 4 at the rear and the engine main hook system 3 at the front.

[0133] As will be seen from the content to be described below, advantageously, the engine main hook system 3, the gearbox clamping system 4, the front axle swan neck side hook system 5, the front hook system 6 for the front axle crossbeam, and even the safety hook system 7 are all provided in a modular manner.

[0134] The following first describes the engine main hook system 3. It should be noted that the engine main hook system is modular, and can also be called an engine main hook module.

[0135] like Figure 1-3 As shown, the main hook system 3 is located at the front of the sling, for example, fixed by bolts to the main structural frame of the sling, here under the main longitudinal beam 2. The main hook system 3 is used to hook the front lifting ear hole of the engine. When the engine sling is suspended by the carrier sling, the main hook system bears the main weight of the engine, and is therefore the most important component of the engine sling.

[0136] Referring to the diagram showing the engine main hook system 3 according to an embodiment of the present application Figure 4 The engine main hook system 3 includes: two cross beams 31, 32; a chain connecting plate 33 for connecting the main hook system chain, and its two ends are longitudinally connected between the two cross beams 31, 32 so that its two ends can move synchronously laterally along the two cross beams 31, 32.

[0137] For this purpose, when the main hook system 3 is connected to the engine hoist 1, a linear guide rail is respectively arranged on the downward lower surface of the two cross beams 31, 32 along the length direction of the cross beams, which are slide rails 311, 321. Figure 3 , 5 As shown. Figure 5 As can be seen in the figure, the cross beam 31 is the front cross beam and the cross beam 32 is the rear cross beam. The slide rail 311 arranged on the front cross beam 31 is the front slide rail, and the slide rail 321 arranged on the rear cross beam 32 is the rear slide rail.

[0138] In addition from Figure 4 As can be seen in FIG, the front crossbeam 31 is wider than the rear crossbeam 32. However, this is not restrictive.

[0139] Correspondingly, sliders 333 are provided at the two ends of the upper surface of the chain connecting plate 33 opposite to the cross beam, and are slidably engaged with the slide rails. Figure 6-7 shown.

[0140] In addition, Figure 3-5 As can be seen in the figure, as an example, the main body of the chain connecting plate 33 is in the form of a rectangular flat plate, for example, the middle of the plate may be hollowed out for weight reduction. A front narrower end portion 331 narrowed relative to the main body is connected to one end of the main body, i.e. the front end, and a rear wider end portion 332 widened relative to the main body is connected to the opposite end of the main body, i.e. the rear end. Figure 3It can be seen that the rack 312 is arranged along the front transverse edge of the front crossbeam 31, and the front slide rail 311 is arranged along its rear transverse edge. The front end of the main body of the chain connecting plate 33 is then slidably engaged with the front slide rail 311 through the slider on its upper surface.

[0141] The rear slide rail 321 is arranged approximately in the middle of the rear cross beam 32 , and the rear end of the main body of the chain connecting plate 33 is slidably engaged with the rear slide rail 312 via a slider 333 on its upper surface.

[0142] from Figure 3 In the bottom view, it can be seen that five chains 341, 342, 343, 351, and 352 are connected under the chain connecting plate 33. More specifically, chains 341 and 342 are connected to the two outer sides of the rear wider end portion 332 of the chain connecting plate 33, and chain 343 is connected to the front narrower end portion 331. These three chains are called external force chains, because when the main hook system is working, that is, the engine is hooked and suspended by the carrying sling for transportation, these three chains will mainly bear the weight of the engine, and thus be tensioned. In addition, chain 351 is connected to the rear end of the main body of the chain connecting plate 33, and is arranged forward and inward relative to chains 341 and 342; chain 352 is connected to the front end of the main body of the chain connecting plate 33 relatively backward relative to chain 343. Chains 351 and 352 are called inner chains here, and are used as safety chains. When the engine is hooked by the main hook system and suspended for transportation, these safety chains 351, 352 are not load-bearing and remain in a loose state. Only when the three outer load-bearing chains fail due to failure, such as breaking due to long-term wear, the two inner safety chains will work, that is, tighten to keep the engine still safely suspended.

[0143] Preferably, for example Figure 3 and Figure 5 As shown, the front outer chain 343 and the two inner chains 351, 352 can be aligned in the longitudinal direction.

[0144] The chains can be connected to the chain link plate 33, for example, by means of axle pins passing through holes in the chain link plate and end links and fastened with locking nuts.

[0145] from Figure 3 It can also be seen that a locking rod 36 is fixed to the front side of the hole of the front narrower end portion 331, which is adjacent to the hole connected to the chain 342. The locking rod 36 passes through the special hole in the front narrower end portion 331 and engages with the rack 312 through the head. For this purpose, the locking rod 36 is equipped with a tooth block (not visible in the figure) at its head. The teeth of the tooth block are used to engage with the rack 312 to lock the entire chain plate and the connected chain and main hook. The locking rod 36 can be pulled down together with the chain mounting plate 33 so that the teeth of the tooth block are separated from the rack 312, and the locking rod is released, and the teeth of the tooth block engage the rack 312.

[0146] It is known that the position of the holes used for hoisting may be different for different engine models. If the main hook system 3 is in a constant position relative to the main longitudinal beam 2, the center of gravity may be unstable when hoisting different engine models. For this reason, the aforementioned rack 312 and the locking rod teeth engaged therewith are specially provided so as to allow the main hook system 3 to slide laterally relative to the main longitudinal beam 2 along the slide rail to adjust its lateral position and lock it, thereby adjusting the center of gravity of the engine hoisting. The locking rod 36 thus constitutes an adjustment rod.

[0147] During operation, it is only necessary to manually pull the locking rod 36 downward to disengage its teeth from the rack 312, thereby allowing the connecting plate 33 connected to the chain and the main hook to be moved along the slide rail to adjust its lateral position; when adjusted into place, the force applied to the locking rod 36 is released, and the locking rod teeth engage the rack to lock the adjusted position.

[0148] In practice, the corresponding positions can be pre-marked according to different models.

[0149] In addition, two return springs 37 are connected to the chain connecting plate 33. Figure 6 As shown. Figure 6 In the figure, the locking rod 36, chains 343 and 352 at the front of the chain connecting plate 33, and chains 341 and 451 at the rear can also be seen. The other chain 342 at the rear is not visible. Two return springs 37 are symmetrically arranged at the front and rear of the main body of the chain connecting plate 33, between the front and rear safety chains 352 and 351, and can be aligned with the safety chains in the longitudinal direction. When the main hook system is not working, that is, not loaded, the two return springs 37 can make the entire main hook system hang in the air in a relaxed state; when it is necessary to hang the main hook system 3 on the engine, the main hook system 3 is pulled down to make the main hook hang in the front ear hole on the engine. At this time, it is necessary to tighten the chain with the help of these return springs 37, so that the main hook is hung in the engine hole more firmly and will not fall out. When the engine hung by the engine hanger is suspended by the carrying hanger, these return springs 37 make the main hook buckled more tightly in the engine hole.

[0150] from Figure 4-6 As can be seen in FIG. 1 , the aforementioned chain is connected at its lower end via a connecting block 38 to a main hook 39 of the main hook system. Figure 3 In order to more clearly show the connecting block 38, in particular the lower ends of the chains are removed from the connecting block.

[0151] like Figure 8 As shown, the connecting block 38 includes a wider square portion, a narrower square portion and a truncated cone portion connecting the wider square portion and the narrower square portion. When connected to the engine hanger, the wider square portion faces rearward and the narrower square portion faces forward.

[0152] The connecting block 38 has a central hole for the main hook rod head to pass through the central hole and extend above the connecting block. Three open rear slots are provided at the rear end of the wider square portion facing backwards, of which two outer slots are used to connect the two outer force chains 341 and 342 at the rear, respectively, and the inner safety chain 352 at the front is connected to the middle rear slot. An open front slot is provided at the front end of the narrower square portion facing forwards, which is used to connect the outer force chain 343 at the front and the inner safety chain 351 at the rear. These chains can be installed on the connecting block 38, for example, by having axle pins pass through corresponding holes and slots on the connecting seat and the end links of the chains at the lower end, and fastened with locking nuts. These chains are fixed to the chain connecting plate 33 at the upper end as described above.

[0153] A ring 381 is provided on the upper surface of the connecting block 38 for connecting the lower ends of the two springs 37. Figure 6 .

[0154] See also the expression Figure 3-5 The engine main hook system shown in Figure 1 is viewed from the longitudinal rear side. Figure 7 , from the Figure 7 The rear crossbeam 32 and the transverse slide rail 321 on its lower surface can be seen in the figure. The rear wider end portion 332 of the chain mounting plate 33 can also be seen. The slider 333 on the upper surface of the chain mounting plate that engages with the slide rail can also be seen in the figure. The rear slider is Figure 6 It can also be seen in Figure 6 The front slider in is partially obscured. Figure 7 In the embodiment, chains, three chains 341 , 342 and 352 visible here, are connected to the connecting block 38 .

[0155] The clamping plate 391 is located below the connecting block 38 and is configured to cooperate with the neck of the main hook 39 to press the main hook.

[0156] The main hook 39 is the main stress point of the whole sling, which is frequently used and bears great stress. Generally, the main hook can be made of 42CrMo material by forging and then polishing.

[0157] In order to press the main hook tightly to prevent the main hook 39 and the clamping plate 391 from rotating relative to each other, the clamping hole that matches the neck of the main hook is processed to have a square surface, and the neck of the main hook is also processed to have a square surface at the part clamped by the clamping plate. The square surface of the clamping hole and the square surface of the neck of the main hook are pressed against each other by interference fit, thereby preventing the clamping plate 391 and the main hook 39 from rotating relative to each other. Figure 3 Enlarged detail captured in Figure 8 .

[0158] In order to facilitate the cooperation with the square surface of the main hook neck, the clamping plate 391 can be divided into multiple parts, for example, it is divided into two parts, namely, the clamping block 3911 and 3912. Figure 8 As shown, the two clamping blocks cooperate to form a clamping hole with a square surface, and the clamping hole is pressed against the neck of the main hook by the interference fit between the square surfaces. The two clamping blocks can be fixed together by screws.

[0159] In addition from Figure 7 It can also be seen that a spring lock piece 392 is also installed on the clamping plate 391, and the lower end of the spring lock piece contacts the end of the main hook to block the main hook opening. Figure 8 As can be seen from the bottom view of the detail, the first clamping block 3911 of the two clamping blocks of the clamping plate 391 is larger, and the second clamping block 3912 is smaller, which are joined together to form an inner hole with a square surface that matches the neck of the main hook. The spring lock piece 392 can be pivotally mounted to the larger first clamping block 3911 to block the main hook opening to prevent the hook from falling off after the engine is hoisted.

[0160] The main structure of the engine main hook system 3 is introduced above, but it should be noted that the above arrangement is only exemplary, and the relevant arrangement such as the number and position of the arranged chains can be adjusted according to actual needs, as long as it can achieve the above functions.

[0161] For longitudinally mounted engines, the engine and gearbox are usually assembled together first. The engine and gearbox assembly is then suspended by a carrier and transported to the subsequent workstation. The gearbox clamping system used to hoist a longitudinally mounted gearbox is described below.

[0162] The longitudinal gearbox (not shown in the figure) is generally provided with a lifting lug on each side thereof, and the gearbox is clamped by the clamping claws of the clamping system. When the engine hoist with the gearbox mounted thereon is lifted by the carrying hoist, the gearbox clamping system mainly bears the weight of the gearbox.

[0163] The gearbox clamping system according to the present application is also modular and can be referred to as a gearbox clamping module. Figure 1-2 As shown, the modular gearbox clamping system 4 is mounted on the rear portion of the main longitudinal beam 2 of the engine powertrain suspension device 1 .

[0164] However, it should be pointed out that, as far as the gearbox clamping system 4 itself is concerned, its front side is relative to the rear side of the main longitudinal beam, and its back side is relative to the front side of the main longitudinal beam.

[0165] The following will mainly refer to Figure 9-10 To explain, Fig. 9 A perspective view from the front of a gearbox clamping system 4 according to an embodiment of the present application is shown; Fig.10 Shown is a perspective view from the rear of the gearbox clamping system. Fig. 9 , 10 The gearbox clamping system 4 in FIG. 1 has not yet been installed on the main longitudinal beam 2 .

[0166] The gearbox clamping system 4 includes: a bracket 41, which is used to be connected to the main longitudinal beam 2 of the engine hanger in a swingable manner; a sliding assembly 42, which is slidably connected to the bracket; and a scissor-type clamping jaw assembly 43, which is fixed to the sliding assembly and can be driven by the sliding assembly to slide integrally relative to the bracket.

[0167] See also Figure 9-10 , the support 41 includes a cylindrical transverse axis tube 411. Specifically, as Figure 1-2 As shown, the transverse axis tube 411 passes through the axis tube holes arranged on the two side surfaces of the main longitudinal beam 2 in the transverse direction, and specifically passes through the shaft sleeves (not visible in the figure) arranged in the holes to allow the gearbox clamping system 4 to be connected to the main longitudinal beam 2 in a manner that allows it to swing relative to the main longitudinal beam 2.

[0168] The bracket 41 also includes two left and right side panels 412, which are flat and elongated. The flat surface of the side panels is arranged horizontally, while the elongated narrow surface is arranged vertically. The transverse ends of the transverse tube 411 pass through the through holes provided in the upper ends of the flat surfaces of the two side panels and are fixed to the two side panels 412. Fig.10 The back plate 413 can be seen in the figure, the lateral left and right sides of which are fixed here, for example, on the forward elongated narrow faces of the two side plates (which are the back faces relative to the clamping system itself).

[0169] A slider (not visible in the figure) is arranged on the front side of the back plate, that is, on the surface facing backwards in the longitudinal direction. Figure 9-10 In the figure, it can be seen that the slide rail 421 is slidably engaged with the slider, and the slide rail is fixedly connected to the scissor-type clamping jaw assembly 43 at the lower end, so that the slide rail slides along the slider on the back plate and can drive the entire scissor-type clamping jaw assembly 43 below to slide synchronously.

[0170] The aforementioned arrangement of enabling the clamping system 4 to swing longitudinally relative to the main longitudinal beam 2 can realize large-angle adjustment of the clamping system, thereby adapting to various engines with different gearbox lengths; the arrangement of driving the clamping claw assembly to slide up and down through the sliding assembly of the slide rail slider type is also conducive to lifting gearboxes of different lengths.

[0171] like Fig. 9 As shown, a stopper 422 is fixed at the upper end of the slide rail 421. The stopper 422 is provided with a cross pin 423 on the right side of the figure, and the cross pin can cooperate with the hook 211 provided on the main longitudinal beam 2. Figure 2 The cross pin 423 is used to hang the gearbox clamping system 4 on the hook on the main longitudinal beam in an inclined state when the gearbox clamping system 4 is not working, so that the gearbox clamping system is in an inclined suspended state, such as Fig.12 As shown. This prevents the clamping system from swinging and provides greater stability when traveling with the sling. When in use, the operator only needs to push back, and the entire clamping system will fall off the hook 211 by gravity. Figure 2 The cross pin 423 shown in FIG. 4 is in a state of being separated from the hook 211 .

[0172] In addition from Fig. 9 As can be seen in the figure, a stop arm 441 abuts against the bottom of the stop block 422, and cooperates with the stop block to limit the downward sliding travel of the slide rail along the slider, thereby limiting the downward sliding travel of the scissor-type clamping jaw assembly. The stop arm 441 can be fixed to one of the side plates 412, such as the left side plate shown in the figure. When the slide rail 421 drives the lower scissor-type clamping jaw assembly 43 to slide downward as a whole until its stop block 422 abuts against the stop arm 441, it is prevented from continuing to slide downward.

[0173] In particular, an adjusting device for adjusting the sliding path of the slide rail and thus the sliding stroke of the scissor-type clamping jaw assembly can also be provided here, for example.

[0174] The adjustment device comprises a disk-shaped member 44 with a plurality of stop arms of different lengths, the disk-shaped member 44 being fixed to one of the side panels, for example Fig. 9 The lower part of the left side plate in the middle; the blocking arm 441 constitutes one of the blocking arms of the disc-shaped member. The adjustment device also includes an adjustment knob 45, which is installed through the opening on the disc-shaped member so that the adjustment knob can be rotated to drive the disc-shaped member to rotate, so as to select the blocking arm of the required length to cooperate with the block. Fig. 9 As shown, different blocking arms can be marked with numbers. In the figure, different blocking arms marked with 2, 3, 5, and 6 can be seen. In the figure, the blocking arm 441 that cooperates with the block is marked as 6. In particular, for example Fig. 9 As shown in the figure, a sign plate can also be set on the side to mark the arm number required for matching with different gearboxes. Fig. 9 The figure showing the front of the gearbox clamping system omits the outer baffle which is located in the Figure 2 and Fig.10 When the outer baffle is installed, most of the aforementioned components are blocked except for the adjustment knob 45 protruding from the baffle hole.

[0175] like Fig. 9 As shown, the gearbox clamping system 4 also includes two return springs 424, 425, the two return springs are fixedly connected to the two flat side surfaces of the two side plates in the lateral direction at the upper ends. Fig. 9 It can be seen that the two side surfaces connecting the two return springs are respectively an inner surface and an outer surface of the two side plates 412. Here, the so-called inner and outer are relative to the bracket 41. For this reason, a pin for connecting the spring 424 is fixed to the upper end of the inner surface of the left side plate 412 shown in the figure, and a pin for connecting the spring 425 is fixed to the upper end of the outer surface of the right side plate 412.

[0176] The two return springs 424, 425 are fixedly connected to the lower clamping jaw assembly at the lower end to ensure that the slide rail and the clamping jaw assembly slide together. When the clamping system is not in use, the return spring allows the clamping jaw assembly to be retracted upwards; when in use, according to the height of the gearbox to be clamped, the clamping jaw assembly only needs to be pulled downwards to a suitable position; when the clamping jaw is clamped into the gearbox lifting ear hole and the gearbox is lifted, the clamping jaw assembly slides downwards by gravity, and the return spring also makes the clamping jaw clamp tighter and tighter in the lifting ear.

[0177] like Figure 9-11 As shown, the scissor-type clamping jaw assembly 43 includes a lower clamping jaw portion. Fig.11 The clamping jaw portion includes two clamping jaw branches 431, 432 that are pivotally connected, each clamping jaw branch is generally in an inverted L shape, including: generally vertical support arms 4312, 4322; support arms 4311, 4321 that are laterally inward and slightly upwardly inclined; and horizontal clamping pins 4313, 4323 that are arranged at the lower ends of the generally vertical support arms 4311, 4321. The two clamping pins 4313, 4323 extend relative to each other in the transverse direction and are used to be inserted into the gearbox lifting ears.

[0178] The so-called "laterally inward" here refers to the gearbox clamping system. Here, lateral refers to Fig.10 In the left-right direction of the drawing, the inside of the gripper assembly is called the inner side, and the outside of it is called the outer side.

[0179] exist Fig.11 In the embodiment, the left support arm 4311 is further provided with a connecting piece 4314 for pivotally connecting it to the right support arm 4321.

[0180] To this end, the connecting piece 4314 is provided with an elongated hole 4315 at the end, and the right support arm 4321 is correspondingly provided with a hole (not visible in the figure), and the axle pin 91 passes through these corresponding holes in the longitudinal direction and is locked with locking nuts at both ends, so that the two clamping jaw branches 431, 432 can pivot around the axle pin 91 relative to each other.

[0181] The scissor-type clamp assembly also includes a clamping control mechanism for controlling the closing of the clamping jaw portion to clamp, which is in the form of a handle portion 47 that is pivotally connected to the clamping jaw branch. Two such handle portions 47 are symmetrically arranged on the transverse outer side relative to the two clamping jaw branches 431, 432, and they are respectively pivotally connected to the corresponding clamping jaw branches.

[0182] Each handle portion 47 comprises a clamping handle 471 which extends vertically approximately parallel to the approximately vertical arm of the clamping jaw branch and is fixedly connected at the lower part to the clamping pin 4313, 4323 laterally outwardly, for example, by a lower connecting piece 473. Fig.11As shown, the lower connecting member 473 is fixed to the lower end of the vertical arm of the corresponding clamping claw branch by screws on the upper side and fixed to the end of the clamping handle that is bent inwardly by about 90 degrees in the transverse direction, and carries the clamping pins 4313, 3423 on the inner side. The clamping handle 471 is arranged so that when the clamping pin is inserted into the gearbox lifting ear hole, the clamping pin is pre-clamped in the gearbox lifting ear hole by pushing the clamping handle inwardly on both sides in the transverse direction.

[0183] Each handle portion 47 further includes a tensioning handle 472 that is integral with the clamping handle 471. Each tensioning handle 472 includes a transverse substantially horizontal section and a handshake section that extends vertically upward and slightly obliquely outward. The clamping handle 471 extends substantially vertically below the substantially horizontal section. The tensioning handle 472 is pivotally connected to the corresponding support arm 4311, 4321 through the substantially horizontal section. Fig.11 As shown, through holes are provided at the ends of the substantially horizontal sections and at the bends of the clamping jaw branches, and an intermediate piece is used to allow a shaft pin to pass through the corresponding through holes so that the handle portion 47 can be pivotally connected relative to the clamping jaw branches. Fig.11 The handle portion 47 on the left side uses the corresponding axle pins 94 and 95, and for Fig.11 The handle portion 47 on the right side uses corresponding shaft pins 92 and 93.

[0184] The scissor-type clamping jaw assembly 43 also includes two outer connecting plates symmetrically arranged in the longitudinal direction, namely a front connecting plate 102 and a rear connecting plate 101. Here, the front and rear are relative to the engine assembly hoist as a whole. For the clamping jaw assembly itself, the front connecting plate 102 is located at the back of the clamping jaw assembly, and the rear connecting plate 101 is located at the front of the clamping jaw assembly.

[0185] Figure 9-10 The two external connection plates can be seen in Fig.11 Only the front connecting plate 102 on the back side can be seen, and the rear connecting plate 101 on the front side is removed to facilitate viewing of the internal structure of the clamping jaw assembly. The two arms 4311, 4321 of the clamping jaw portion and the horizontal section of the tensioning handle pivotally connected to these arms can be pivotally clamped between the two outer connecting plates. More precisely, in fact, referring to Figure 9-10 Combined with Fig.11 It can be seen that the aforementioned axle pins 91, 92, 93, 94, 95 respectively pass through the holes on the outer connecting plate, the inclined support arm and the substantially horizontal section and are fastened with locking nuts on the outer sides at both ends; in addition, Fig.11 As shown in the middle part, a vertical strip hole 1021 is provided in the middle of the outer connecting plate, here the front connecting plate 102 at the back. The axle pin 91 passes through the symmetrically arranged middle strip hole 1021 of the front and rear outer connecting plates to pivotally connect the inner ends of the inclined arms of the two claw branches.

[0186] Here Fig.11 As can be seen in the figure, a bearing member 106 of, for example, a substantially triangular shape is integrally or attached to the middle upper edge of the outer connecting plate 102; bearing members are also symmetrically arranged on the outer connecting plate 101. The shaft pin 104 is then carried in the grooves at the upper ends of the two bearing members.

[0187] In addition, the scissor-type clamp assembly further includes two L-shaped upper connecting plates 103 arranged symmetrically in the longitudinal direction, see Figure 9-10 ,but Fig.11 , as it has been removed to reveal the internal structure.

[0188] Each L-shaped upper connecting plate 103 includes a vertical plate portion and a horizontal plate portion. The vertical plate portion is provided with a vertical long strip groove 1031 at the upper end. The shaft pin 104 carried by the upper end of the bearing member is received in the front and rear vertical long strip grooves 1031 at both ends so that it can move up and down in the groove when the clamping jaws are opened and closed. Of course, the two ends of the shaft pin 104 extending out of the groove are fixed with locking nuts for limiting and retaining. Fig. 9 In the front view, the transverse plate portion of the L-shaped upper connecting plate is located on the left side of the figure.

[0189] A hole is provided at the lower end of the L-shaped corner for the shaft pin 91 to pass through, see Figure 9-10 However, as described above, the axle pin 91 also passes through the vertical long holes 1021 in the outer connecting plates 101, 102 and the approximately transverse long holes in the inner ends of the inclined arms of the clamping jaw branches in the longitudinal direction. A horizontal long slot 1032 is also provided in the transverse plate portion, and its function will be described below.

[0190] Furthermore, the scissor-type jaw assembly also includes a mechanism for locking and releasing the jaw portion at the upper portion, which is used to allow the jaw portion to be locked in place when the jaw portion is clamped, and to allow the jaw portion to be released when the jaw portion needs to be opened.

[0191] The mechanism for locking and releasing the clamping jaws includes a sawtooth clamping plate 105 and the aforementioned shaft pin 104, see Fig.11 The sawtooth clamping plate 105 is fixedly connected at its upper part to a part of a laterally extending linkage rod 111, here to the lower right part thereof. The linkage rod 111 is arranged to be movable left and right in the lateral direction.

[0192] The sawtooth clamping plate 105 is provided with a plurality of saw teeth on the sawtooth surface at the bottom thereof. Fig.11As shown, the plurality of saw teeth rise in a step-like manner from right to left. The axle pin 104 is now shown to be engaged with a middle saw tooth on the lower saw tooth surface of the saw tooth clamp 105. In fact, the axle pin allows the jaw portion to be closed or opened and locked in place by descending or ascending along the saw teeth of the lower saw tooth surface of the saw tooth clamp, and on the other hand, controls the angle of opening and closing of the jaw portion by engaging with the saw teeth at different heights.

[0193] To this end, the clamping system further includes an opening control mechanism 11 for controlling the opening of the clamping jaws.

[0194] The opening control mechanism 11 includes a handle portion 112 and the aforementioned linkage rod 111. The handle portion 112 and the linkage rod 111 are arranged so that when the handle portion is pulled laterally outward, the linkage rod 111 is linked to drive the serrated clamping plate 104 fixed at its lower portion to move in the opposite direction in the lateral direction, that is, the serrated clamping plate moves to the other side in the lateral direction, so that the axle pin 104 is separated from the serrated clamping plate 105, thereby allowing the clamping claw portion 43 to open.

[0195] The handle portion 112 includes a substantially vertical handle 1121 and a horizontal rod 1122 connected to the handle. The intermediate connecting rod 113 is configured to be pivotally connected to the horizontal rod 1122 and the linkage rod 111 of the handle portion 112, respectively, so that when the handle is pulled outward laterally, the intermediate connecting rod pivotally connected to the horizontal rod at the lower end drives the linkage rod pivotally connected to the upper end thereof, thereby driving the sawtooth clamping plate 104 to move laterally in the opposite direction. In addition, at the position of the horizontal rod 1122 of the handle portion 112 adjacent to the end of the intermediate connecting rod 113 pivotally connected, the shaft pin 96 passes through the hole thereon and passes through the transverse long strip grooves 1032 provided on the two L-shaped upper connecting plates 103, and is fastened with locking nuts at both ends of the outer side, so that the horizontal rod of the handle portion can be allowed to move laterally in the long strip groove 1032.

[0196] Here, the handle portion 112 as described above is arranged on Fig.11 But on the left side of Fig.11 A similar handle 112' is also symmetrically provided on the right side. However, unlike the handle 112, the horizontal rod of the handle 112' is fixed to the transverse end surface of the sawtooth clamp 104 through an intermediate piece. However, due to the existence of the sawtooth clamp, pulling the handle 112' outward can also achieve the same effect as pulling the handle 112 outward.

[0197] From the rear side of the clamping system Fig.10 A spring 115 can also be seen in the figure. The spring 115 is connected to the middle piece that fixes the handle portion 112' to the sawtooth clamping plate, and is used to make the sawtooth clamping plate push toward the movable handle portion 112 and clamp and lock the axle pin 104 no matter how much the clamping jaw portion is opened.

[0198] The arrangement described here with reference to the drawings is not restrictive and can also be arranged in the opposite manner.

[0199] In addition from Fig.10 The intermediate interface component 108 disposed between the slide rail 421 and the scissor-type clamping jaw assembly 43 can be seen in the figure. The slide rail 421 is fixedly connected to the upper portion of the intermediate interface component 108, and the intermediate interface component is provided with a slide groove 1081 at the transverse end thereof for the linkage rod 111 to slide through. Fig.10 The illustrated example may be in the form of a substantially square block.

[0200] The two L-shaped upper connecting plates 103 are fixed at the upper ends of their vertical plate portions to the front and rear surfaces of the intermediate interface component 108, respectively, so that the clamping jaw portion and the handle portion are integrally fixed to the intermediate interface component, and the bearing member 106 is clamped between the two L-shaped upper connecting plates 103. At the same time, the longitudinal axis pin 104 carried by the bearing member passes through its two long strip grooves 1031. When the clamping jaw portion is opened and closed, the axis pin 104 can move up and down along the long strip groove 1031.

[0201] In addition, two tensioning springs are provided between the sliding assembly and the scissor-type clamp assembly. The tensioning springs are connected to the back plate at the upper end, for example, and are fixed to the scissor-type clamp assembly at the lower end, for example, fixed to the two holes on the middle upper edge of the outer connecting plate 101. Fig. 9 This spring is only partially visible in the figure. It can play the role of opening and closing the clamping jaws. In the non-working state, that is, when the clamping jaws are not hooked on the gearbox, the tension spring can make the lower clamping jaws open outwards, and when the gearbox is hoisted, the clamping pin is clamped tighter and tighter in the gearbox lifting ear hole by gravity and the tension of the spring.

[0202] With the arrangement of the gearbox clamping system as described above, when it is needed to clamp the gearbox, the operator pulls down and pushes back the bracket hung on the hook of the main longitudinal beam, so that it falls off the hook by gravity; according to different gearbox types, such as the length of the gearbox, the swing angle of the bracket 41 on the main longitudinal beam 2 and the sliding displacement of the slide rail 421 on the slider are adjusted to adjust the clamping claw assembly to a suitable position; then the operator only needs to hold the clamping handle 471 on one side with one hand, align it with the gearbox lifting ear hole and push it so that the clamping pins on both sides are synchronously clamped into the lifting ear hole. However, it should be noted that there is still a gap between the clamping pin and the lifting ear hole at this time, so this is only an initial positioning and pre-tightening. It is also necessary to use the tensioning handle 472 and the handle 1121 to further clamp the clamping pins 4313 and 4323 in the lifting ear hole. At this time, the tensioning handle 472 is pulled outward on one side and the handle 1121 is pushed inward, so that the clamping pins 4313 and 4323 are clamped in the lifting ear hole.

[0203] When the clamping pin needs to be released from the lifting ear hole, the handle 1121 or 112' is simply pulled outward, which causes the serrations of the serrated clamping plate to disengage from the axle pin 104 and move away, thereby driving the outer connecting plate associated with the axle pin 104 to move upward through the spring - this is manifested as the axle pin 104 moving upward in the corresponding long strip groove 1031 of the L-shaped upper connecting plate 103 and the axle pin 91 moving downward in the vertical long strip hole (not visible) of the outer connecting plate, so that the handle portion 47 and the clamping jaw assembly 43 pivotally connected to the lower side of the front and rear outer connecting plates rotate outward around the corresponding axle pins 92, 93, 94, 95 and open upward. When the handle portion is operated to close the clamping jaw assembly, the operation process is reversed. That is to say, according to the embodiment of the present application, the axle pin 104 can move downward freely when clamping, but if the clamping claw part needs to be opened, the serrated clamping plate 105 needs to be removed for the axle pin 104 to move upward, otherwise the serrated clamping plate will prevent the axle pin 104 from moving upward and thus the clamping hook part cannot be opened.

[0204] In addition, when the carrier hoist lifts the engine hoist, the clamping pin will be clamped tighter and tighter in the hole due to the weight of the gearbox itself. In this case, even if the handle 1121 for opening is pulled outward, the clamping claw portion will not open.

[0205] Here again, it is reminded that due to the presence of the aforementioned serrated clamping plate, linkage can be achieved by using a scissor-type locking structure. In this way, operating the handle on one side can achieve synchronous movement of the handle on the other side, so that the opening and closing angles of the clamping claws on both sides are the same. That is, the operator can clamp and lock both sides synchronously during the clamping process, and vice versa.

[0206] It should also be pointed out that due to the serrated surface on the serrated clamping plate, pulling the tensioning handle outward can move the clamping jaw portion in the closing direction, but operating the tensioning handle in the opposite direction cannot move the clamping jaw portion in the opening direction due to the locking effect of the serrations.

[0207] Next, a modular front axle hook system, also referred to as a front axle hook module, will be described.

[0208] like Figure 1-2 As shown, the engine powertrain sling has two front axle swan neck hook systems 5 symmetrically fixed on both sides of its main longitudinal beam 2, which are used to make the hook hang the front axle swan neck of the motor vehicle. Here, the front axle swan neck refers to the front axle steering knuckle, especially the upper part of the front axle steering knuckle. The front axle swan neck hook system is also called the side hook system.

[0209] like Fig.13 The two side hook systems 5 shown are similar. The side hook system on the right side will be described below, which also applies to the side hook system on the left side.

[0210] like Figure 13-14As shown, the side hook system 5 includes a mounting seat 51, which is used to be fixed to the side of the main longitudinal beam of the engine hanger by bolts when the side hook system 5 is installed on the engine hanger. The surface of the mounting seat fixed to the main longitudinal beam is called the inner side surface, and the opposite surface is called the outer side surface. Here, for example, the mounting seat 51 is roughly rectangular.

[0211] See also Fig.13 , a gas spring 52 and a fixed arm 53 are mounted on the outer side of the mounting seat. The pipe end joint of the gas spring 52 is connected to the mounting seat, for example, through a connecting block fixed on the mounting seat. As shown in the figure, the connecting block has two wings, and the axle pin passes through the holes of the two wings and also passes through the holes of the pipe end joint of the gas spring 52. The two ends of the axle pin are locked with nuts to install the gas spring. The fixed arm 53 is arranged adjacent to the gas spring 52 and is fixed to the mounting seat or integrated with the mounting seat. Here, the gas spring 52 is located in front of the fixed arm. Of course, this is not restrictive.

[0212] The fixed arm 53 shown in the figure includes an inclined arm portion 531 fixedly connected to the mounting seat 51 and a horizontal arm portion 532 extending horizontally toward the movable arm. The inclined plate 533 extends over the entire inclined arm portion 531 and over a portion of the horizontal arm portion. The inclined plate 533 is fixed to the mounting seat at the left end in the horizontal direction, and its inclined lower surface is fixed to the entire inclined arm portion, while the horizontal lower surface is fixed to a portion of the horizontal arm portion. In fact, the inclined arm portion, the horizontal arm portion and the inclined plate can be formed integrally. The inclined arm portion and the horizontal arm portion can have, for example, a rectangular cross-section.

[0213] The side hook system 5 further comprises a movable arm 54 which can pivot relative to the fixed arm 53. The movable arm can also be, for example, of a similar rectangular cross section.

[0214] See also Fig.13, the female connector 534 is fixed on the outer end of the horizontal arm 532, which is, for example, rectangular. The female connector 534 is, for example, in the form of a U-shaped piece. It is fixed to the outer end through the bottom of the U-shape, and the two wings of the U-shape form a seat groove. Correspondingly, the formula connector 541 is fixed on the inner end of the movable arm 54 facing the outer end of the horizontal arm. For example, the formula connector 541 has a base fixed on the inner end and a protrusion protruding from the base. The protrusion of the formula connector 541 is accommodated in the seat groove of the U-shaped female connector 534, and a pin passes through two through holes longitudinally aligned on the two wings of the female connector 534 and through a through hole specially provided on the protrusion of the formula connector 541, and is locked with nuts at both ends of the protrusion, so that the movable arm 54 can pivot upward and inwardly relative to the fixed arm 53 around the axle pin and pivot downward and outwardly. Therefore, the movable arm can pivot between a retracted position folded upward and inwardly and a position extended downward and outwardly relative to the fixed arm. Here, the angle at which the movable arm pivots upward and inward to the retracted position may exceed 90 degrees, or even reach about 100 degrees; and it is unfolded downward and outward, for example, to a horizontal position. In addition, the so-called "upward and inward", "downward and outward", "upward" and "downward" are relative to the vertical direction, and "inward" and "outward" are relative to the horizontal direction. Pivoting in the direction close to the fixed arm is "inward", and pivoting in the direction away from the fixed arm is "outward". Therefore, the combination of the formula joint and the female joint allows the movable arm 54 to form a movable joint relative to the fixed arm 53. Of course, what is described here in conjunction with the accompanying drawings is only an example. Other ways to achieve similar functions are also conceivable.

[0215] In addition, a component 56 is fixed to the end portion of the movable arm 54 near the formula joint 541. The component 56 can be divided into two parts, namely a connecting part 561 and a receiving part 562. Fig.14 The connecting portion 561 is fixed on the surface of the movable arm 54 facing the gas spring 52, for example, by bolts. The rod end joint of the piston rod of the gas spring 52 is fixedly connected to the movable arm 54 through the connecting portion 561. The receiving portion 562 is cylindrical and is located above the end portion of the movable arm 54.

[0216] In addition from Figure 13-14As can be seen in the figure, a U-shaped clamp 57 is arranged above the horizontal arm portion 532 of the fixed arm 53 adjacent to the inclined plate 533. The U-shaped clamp 57 and the cylindrical receiving portion 562 are arranged so that when the movable arm 54 is pivoted upward around the axis pin and is in place, the movable arm can be kept in place by the U-shaped clamp 57 and the cylindrical receiving portion 562. In fact, the movable arm 54 can be pivoted upward around the axis pin by more than 90 degrees, or even up to 110 degrees, and the cylindrical wall of the cylindrical portion 562 is inserted into the U-shaped clamp and tightened, thereby clamping the movable arm 54 in a folded and stowed state. Therefore, the U-shaped clamp 57 and the cylindrical portion 562 form a clamping device.

[0217] A metal profiled part 58 is disposed outside the adjacent part 56. Figure 13-14 As shown, the special-shaped member 58 straddles the upper part of the movable arm 54 and is fixed to the side of the movable arm. The portion 581 of the special-shaped member located above the movable arm and the portion 582 located only on one side of the movable arm form a space relative to the movable arm 51. In addition, the foam block 59 is installed on the upper part of the movable arm 51 adjacent to the special-shaped member 58 and on the outside, so that a storage space for storing the hook when the hook is not in use is formed between the portions 581 and 582 of the special-shaped member 58 and the foam block 59.

[0218] like Figure 13-14 As shown, the movable arm 54 carries on its outer side portion a hook device 70 for lifting the swan neck of the front axle.

[0219] Specifically, as shown in the figure, two connecting plates are installed on the front and rear side surfaces along the longitudinal direction of the movable support arm 54 through bolts and nuts. The two connecting plates are symmetrically fixed on the two longitudinal side surfaces of the movable support arm in a manner of clamping the movable support arm 54.

[0220] The support for the hook device, here for example in the form of a cylindrical sleeve 61, is fixed, for example by welding, to a connecting plate, here the lower part of the front connecting plate 60 as can be seen in the figure. A shaft extends through the interior of the sleeve 61 and protrudes at both ends, and the hook device 70 is fixed at the protruding outer end. The shaft is fixed at its protruding inner end, for example by welding, to Figure 13-14 The housing of the push rod 80 is shown in FIG.

[0221] A bent plate is also fixed inside the connecting plate 60 to which the shaft sleeve 61 is fixed. The bent plate includes a horizontal plate portion 621 and a vertical plate portion 622. The vertical plate portion 622 extends vertically downward on a longitudinal side of the movable arm, here on the longitudinal rear side. Figure 2 The vertical plate portion 622 can be seen in FIG. The horizontal plate portion is mostly located below the movable support arm 54 and extends longitudinally from Figure 1 and Fig.13 The portion of the horizontal plate portion 621 that is exposed from the movable support arm can be seen.

[0222] The bent plate and the push rod 80 are arranged so that: when the hook device is not working, that is, the front axle is not hoisted, the push rod 80 is in Fig.13 The vertical position shown in the figure, at this time, the head of the push rod 62 is stuck in the hole of the horizontal plate portion 621 of the bent plate, and the hole is blocked by the movable support arm and cannot be seen; when the hook device is hooked into the hole of the front bridge, the push rod 80 is pulled downward to make the push rod head escape from the hole, thereby allowing the push rod to be rotated 90 degrees upward in the direction close to the horizontal plate portion 621, and then the action on the push rod 80 is released, so that the push rod head is stuck in the hole 6221 of the vertical plate portion 622 (see Figure 2 )middle.

[0223] In addition to the invisible hole in the horizontal plate portion 621 for the push rod head to engage in the upright position, there is also a Figure 1 and Figure 13-14 The limit block 6211 can be seen in the figure. The limit block is used to prevent the push rod 80 from rotating upward at an excessive angle, so when the push rod rotates upward by 90 degrees, the limit block will abut the push rod housing.

[0224] For push rod 80, see Fig.16 , which shows a cross-sectional schematic diagram of the push rod 80, in which the push rod is in an inactive vertical upright position, but it should be noted that the push rod is shown in an inverted state in the figure. From this figure, the sleeve 61 for supporting the hook device and the shaft rod therein, as well as the related connecting plate 60 and the related side surfaces of the movable support arm 54 can also be seen.

[0225] The shaft pin 801 extends in the inner cavity of the push rod 80 housing, and the shaft pin 801 is provided with a pin head 802 at the upper end. In the position shown in the figure, the pin head is inserted into the hole of the horizontal plate portion 621 of the bent plate 62. The shaft pin 801 is provided with an aligned, for example, circular through hole on the lower end wall, and a corresponding elongated opening is provided on the lower end wall of the housing. Fig.16 A spring, not shown, is disposed in a space between the lower end of the shaft pin and the lower end of the housing.

[0226] The control rod 803 passes through the through hole of the axle pin and the elongated opening of the housing transversely relative to the housing and protrudes at both ends, so that when the protruding ends of the control rod 803 are pulled down, the axle pin 801 can be driven to move downward along the elongated opening, and when the control member is released, the axle pin is reset by the spring.

[0227] In addition, for the convenience of operation, components for controlling can be installed at the protruding ends of the control rod 803, such as the spheres shown in the figure. Of course, other components such as Fig.12 Other shapes shown.

[0228] In this way, the pin head 802 can be disengaged from the hole of the horizontal plate portion 621 by pulling down the two balls, and then the shaft pin 801 is rotated upward to approximately 90 degrees, at which time the stop block of the vertical plate portion contacts the push rod housing; the force applied to the two balls is released, and the spring causes the shaft pin, and thus the pin head, to be inserted into the corresponding hole 6221 of the vertical plate portion 622 (see Figure 2 ), thereby tensioning the hook hooked into the front axle hole, because the hook device 70 is fixed to the push rod 62 through the shaft rod carried by the bearing 61, it will rotate upward together with the push rod 60, so that the hook in the front axle hole is tightened and will not loosen from the hole.

[0229] Back to Figure 13-14 , it can be seen that the hook device 70 is supported by the movable arm 54. Generally, the hook device 70 includes a chain and a hook 701 carried by the chain.

[0230] However, here, in addition to the hook 7011, the chain also carries a clamp 702 for other types of front axles, such as a spring for clamping a MacPherson suspension.

[0231] like Fig.14 As shown, a rod 703 is connected to the lower end of the chain, and two operating levers 704 and 705 are pivotally connected to the end of the rod 703 opposite to the chain. The two operating levers 704 and 705 are respectively connected to the two arms of the clamp 702 to control the opening and closing of the clamp 702 by operating the two operating levers. The hook 701 is connected to the lower arm of the clamp.

[0232] When the hook device is not needed, the hook 701 can be inserted into the storage space between the special-shaped member 58 and the foam block 59 , and the clamp 702 can be flatly placed on another connecting plate opposite to the connecting plate 60 .

[0233] In addition, as mentioned above, the gas spring 52 is connected to the mounting seat 51 at one end and to the movable arm at the other end. The gas spring 52 can control the folding, stowing and unfolding of the movable arm through the telescopic movement of the piston rod connected to the movable arm 54. Its operation is ergonomic. When the side hook system 5 is needed, the operator pulls down the initially folded side hook system. When the downward pulling force is greater than the locking force of the gas spring, the gas spring will push the movable arm to automatically open, for example, to a horizontal position; take out the hook 701 from the storage space and hang it in the swan neck hole of the front bridge. Then, as mentioned above, the push rod 80 is rotated upward by 90 degrees to tighten the hook in the hole. On the contrary, when the hook is not needed, the hook is inserted into the aforementioned storage space, and it only needs to be pushed upward with a little force, and the gas spring will then work to automatically rotate the movable arm 54 upward and fold it, and this rotation and folding may greatly exceed 90 degrees. In any case, when the movable arm 54 is folded into place, it is held in place by the cooperation between the U-shaped retaining piece 57 and the cylindrical portion 562 . Fig.15 It shows the state that the movable arm is folded, stowed and maintained and the hook is placed in the storage space.

[0234] In addition, the front axle hook system also includes a front hook system 6 for the front axle crossbeam. Figure 1 As shown, it is installed at the front end of the main longitudinal beam 2, adjacent to the front cross beam 31 of the main hook system 3. The front rack 312 under the front cross beam 31 can be seen from the front side.

[0235] See in particular below Fig.17 The front hook system 6 will be described.

[0236] The front hook system 6 comprises a base 63, which is used to be fixed to the front end of the main longitudinal beam 2 by bolts and screws, for example. A slide rail 631 is provided on the outer surface of the base 63 and extends vertically.

[0237] A connecting plate 64 can also be seen in the figure, on the inner surface of the connecting plate facing the base a slider 641 is provided, the slider engages with the slide rail on the base to allow the connecting plate 64 to slide up and down along the slide rail 631 .

[0238] On the outer surface of the base 63, a plate 632, for example, in an L shape is provided opposite to and parallel to the slide rail. The L-shaped plate 632 includes: a horizontal portion 6321 fixed to the outer surface of the base; and a protruding portion 6322 perpendicular to the horizontal portion and protruding forward relative to the outer surface of the base 63. A plurality of circular holes are provided on the front narrow and long surface of the protruding portion from top to bottom. Fig.17 , the slide rail is on the left and the L-shaped plate is on the right.

[0239] As shown in the figure, in addition to the plate portion (here on the left side) with the slider installed below, the connecting plate 64 also has a plate portion 641 (here on the right side) located above the surface with the circular hole, in which an opening is provided that passes from the outer surface to the inner surface. The plunger 65 can be inserted into the corresponding circular hole of the L-shaped plate 632 below through the opening and tightened. With this arrangement, the height of the hook can be adjusted according to different front axle types. When adjusting, loosen the plunger and remove it from the circular hole; then move the connecting plate to the appropriate height along the slide rail, and then screw the plunger 65 into the circular hole below at the corresponding height and tighten it. In addition, Fig.17 It can also be seen that a plate 633 is installed on the right side adjacent to the horizontal portion 6321 of the plate 632, on which the appropriate heights corresponding to different types of front axles can be marked to facilitate the adjustment of the plunger relative to different circular holes.

[0240] The plate portion 641 further extends downward to cooperate with the connecting block 66 to securely connect the chain.

[0241] The chain is connected at the lower end to a hook support rod 67. The hook support rod 67 may have a plurality of, for example, four, vertically extending square faces for carrying different hooks for different front axle types. Fig.17 It can be seen that the hook support rod 67 carries three different hooks on its three square surfaces.

[0242] In addition, it is also conceivable to provide a hook member on the engine hanger frame to hang the chain when the hook is not in use.

[0243] Back to Figure 3 , the front hook system 6 can also be seen, wherein the chain for connecting the hooks is omitted.

[0244] See again Figure 3 It can be seen that a safety hook system 7 is also arranged between the front engine main hook system 3 and the rear gearbox clamping system 4 along the main longitudinal beam 2.

[0245] When the engine power assembly hoist is being hoisted, the safety hook of the safety hook system 7 is hung in the rear ear hole of the engine. When the carrying hoist is hoisted and the assembly hoist is transported, this safety hook system will not be stressed. The safety hook system will only work when the gearbox clamping system 4 fails, for example, the clamping claws are not clamped tightly and fall off.

[0246] Fig.18 2 shows a safety hook system 7 to be mounted on the main longitudinal beam 2 in a three-dimensional view. The safety hook system 7 is modular.

[0247] The safety hook system 7 includes a longitudinal support beam 71 , a transverse hanger 72 , and a safety hook device 73 .

[0248] The longitudinal support beam 71 is fixed to the main longitudinal beam 2 of the frame by bolts or screws, for example. Fig.12 As shown. The transverse bracket 72 is installed transversely relative to the longitudinal support beam 71 so as to be movable longitudinally along the longitudinal support beam. To this end, the longitudinal support beam 71 is integrated with slide rails 711 on both longitudinal sides thereof, and the transverse bracket 72 is connected to the two longitudinal slide rails 711 through two sliders 721, 722 fixed on its upper surface, so that the transverse bracket 72 can slide longitudinally along the longitudinal support beam 71.

[0249] See also Figure 3The transverse hanger 72 has two safety chain hanging seats fixed at the front and rear of its lower surface, namely a front hanging seat 74 and a rear hanging seat 75, which are used to hang the safety chain hook assembly. The mounting hook system is equipped with a variety of different types of hooks to adapt to different engine models. As an example, the system 7 is equipped with three different types of safety hooks as shown in the figure. For example, the lower end of the safety chain of the front hanging seat 74 is connected to a first type of safety hook 741; two different safety chain hook assemblies are connected under the rear hanging seat 75, wherein the lower end of the safety chain of the first safety chain hook assembly is connected to a second type of safety hook 751, and the lower end of the safety chain of the second safety chain hook assembly is connected to a third type of safety hook 752. From Fig.18 Safety hooks 751 and 752 can be seen, but safety hook 741 is not visible.

[0250] In addition, hooks such as 761 and 762 are provided on the horizontal hanger 72 for hanging unused hooks, see Figure 3 and Fig.18 .

[0251] Here we return to the overall three-dimensional view of the engine powertrain hanger. Figure 1-2 .

[0252] It can be seen that a plurality of transverse connecting plates are arranged on the upper part of the main longitudinal beam 2, which are transverse connecting plates 21, 22, and 23, and are configured to be fastened to the connecting plates of the carrier sling, for example, by bolts, so that the carrier sling can suspend the engine power assembly sling along the track for lifting during operation. The carrier sling is not the purpose of this application, and thus will not be described in detail here.

[0253] In addition, as mentioned above, the main structural frame of the engine powertrain sling includes the main longitudinal beams. In addition, for example, the cross beams of the engine main hook system can also be regarded as the cross beams of the main structural frame. No further explanation will be given here.

[0254] In addition, the present application may include any feature or feature combination or generalization disclosed herein, whether implicitly or explicitly, without being limited to any of the limited scopes listed above. Any elements, features and / or structural arrangements described herein may be combined in any suitable manner.

[0255] The specific embodiments disclosed above are exemplary only, and it will be apparent to those skilled in the art who have the benefit of the teachings herein that the present application may be modified and implemented in different but equivalent ways. For example, the above method steps may be performed in a different order. In addition, the details of the construction or design shown herein are not limited except as described in the following claims. It is therefore apparent that the specific embodiments disclosed above may be changed and modified, and all such variations are considered to fall within the scope and spirit of the present application. Therefore, the protection sought herein is set forth in the appended claims.

Claims

1. An engine main hook module, used for hoisting an engine, characterized in that: The engine main hook module includes: two cross beams, which are used to be transversely fixed under the main longitudinal beams of the main structural frame of the engine hanger when the engine main hook module is installed on the engine hanger; a chain connecting plate, which is longitudinally connected between the two cross beams in a manner that can be synchronously moved laterally along the two cross beams; multiple chains and hook parts, the multiple chains are connected to the chain connecting plate at the upper end and connected to the hook part at the lower end, so that the chain connecting plate can drive the multiple chains and the hook part to move laterally relative to the main longitudinal beam.

2. The engine main hook module according to claim 1, characterized in that: A slide rail is arranged laterally on the lower surface of the two cross beams connected to the chain connecting plate, and a slider is arranged on the upper surface of the chain connecting plate facing the cross beam. The slider is engaged with the slide rail, thereby allowing the chain connecting plate and the associated chain and hook part to slide synchronously laterally along the two cross beams.

3. The engine main hook module according to claim 1 or 2, characterized in that: The chain link plate has a main body in the form of a rectangular flat plate, a narrower end portion narrowed relative to the main body continuing at one end of the main body, and a wider end portion widened relative to the main body continuing at the opposite end of the main body.

4. The engine main hook module according to claim 3, characterized in that: The plurality of chains include at least three force-bearing chains called outer force-bearing chains, wherein the first and second outer force-bearing chains are connected to both outer sides of the wider end portion of the chain connecting plate, and the third outer force-bearing chain is connected to the narrower end portion of the chain connecting plate.

5. The engine main hook module according to claim 4, characterized in that: The multiple chains also include at least two safety chains called inner safety chains, wherein the first inner safety chain is between the first and second outer force-bearing chains and connected to approximately the middle of the main body end adjacent to the wider end portion, and the second inner safety chain is approximately aligned with the third outer force-bearing chain in the longitudinal direction and connected to approximately the middle of the main body end adjacent to the narrower end portion.

6. The engine main hook module according to claim 4 or 5, characterized in that: The engine main hook module also includes a lateral position adjustment device for allowing the lateral position of the hook portion to be manually adjusted relative to the front ear hole of the engine to be hoisted and locking the adjusted position.

7. The engine main hook module according to claim 6, characterized in that: The lateral position adjustment device includes: a rack arranged along a lateral edge of a crossbeam associated with the narrower end portion of the chain connecting plate; an adjustment rod passing through and fixed at the narrower end portion of the chain connecting plate connected with the third external force-bearing chain, and the head of the adjustment rod extends out of the chain connecting plate to engage the rack.

8. The engine main hook module according to claim 7, characterized in that: The head of the adjusting rod is equipped with a tooth block, which is used to engage with the rack so that the adjusting rod can be pulled down to separate the teeth of the tooth block from the rack, thereby allowing the chain connecting plate and the connected chain and hook part to slide laterally relative to the main longitudinal beam as a whole to adjust their lateral position. When the adjusting rod is released, the teeth of the tooth block engage with the rack to lock it.

9. The engine main hook module according to any one of claims 4 to 8, characterized in that: The hook part includes a main hook and a connecting block connecting the main hook to the lower end of the chain.

10. The engine main hook module according to claim 9, characterized in that: The connecting block includes a wider square portion, a narrower square portion, and a truncated cone portion connecting the wider square portion and the narrower square portion.

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