Armored Equipment Engine Lifting and Positioning Auxiliary Device

Abstract

This utility model relates to the field of vehicle maintenance and support equipment technology. The utility model describes an auxiliary device for the lifting and positioning of an armored vehicle engine, comprising a base frame, a longitudinal positioning mechanism, a lateral positioning mechanism, and a height adjustment mechanism. This utility model has the following advantages: By integrating three independent adjustment mechanisms (longitudinal, lateral, and height), it breaks down the traditional, crane-operated, and difficult-to-control multi-dimensional aerial alignment into precise ground-based mechanical adjustments in three directions. Operators can easily make fine adjustments to the engine's forward / backward, left / right, and up / down movements by turning a handwheel, solving the problem of poor alignment accuracy and significantly improving positioning accuracy and success rate. The two sets of positioning arm assemblies, which can move synchronously in opposite directions, form a reference plane on their inner sides, which actively guides and coarsely positions the engine during its descent, effectively preventing engine swaying and avoiding the risk of collision with the vehicle body.

Description

Technical Field

[0001] This utility model relates to the field of vehicle maintenance and support equipment technology, specifically to an auxiliary device for lifting and positioning armored vehicle engines. Background Technology

[0002] Armored vehicle engines are enormous in weight and size, and their maintenance and replacement require the use of cranes to lift them and align them with the narrow mounting brackets on the vehicle body. Current technology relies entirely on the visual inspection and verbal commands of the crane operator and ground personnel, manually pushing and pulling the suspended, swaying engine for alignment. This presents three major challenges: first, alignment accuracy is extremely difficult to guarantee, the engine is unstable in mid-air, fine-tuning is difficult, and the process is extremely time-consuming; second, there are significant safety hazards, as the engine is prone to colliding with the vehicle body, threatening the safety of personnel and equipment; and third, the operation is inefficient, severely impacting the speed of equipment readiness recovery. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of this utility model is to propose an auxiliary device for the hoisting and positioning of an armored vehicle engine, which integrates precise adjustment functions in three dimensions: longitudinal, lateral, and height. It can provide a stable benchmark and reliable support for the hoisting of the engine, and achieve rapid, accurate, and safe positioning and installation.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: an auxiliary device for lifting and positioning an armored vehicle engine, comprising: a base frame, the bottom surface of which is provided with moving wheels with braking function; a longitudinal positioning mechanism, which is installed on the base frame and includes a longitudinal drive assembly and a sliding base driven by the longitudinal drive assembly to slide in the front-rear direction; a lateral positioning mechanism, which is installed on the sliding base and includes a lateral drive assembly and a positioning arm assembly driven by the lateral drive assembly to move in the left-right direction, the positioning arm assembly having two sets and their relatively inner sides forming a reference surface for guiding and positioning the lateral position of the engine; and a height adjustment mechanism, which is installed on the sliding base and located below the lateral positioning mechanism, for supporting the engine from the bottom and making fine adjustments in the height direction.

[0005] Preferably, the longitudinal drive assembly includes a longitudinal lead screw and at least one longitudinal guide rod arranged parallel to the longitudinal lead screw. The sliding base is engaged with the longitudinal lead screw through a threaded connecting sleeve and is slidably connected to the longitudinal guide rod through a linear bearing. One end of the longitudinal lead screw is connected to a first handwheel.

[0006] Preferably, the lateral drive assembly includes a sliding seat disposed on the side wall of the sliding base, the sliding seat having a T-shaped groove, a lateral lead screw rotatably disposed in the groove, and the lateral lead screw having a threaded connection of equal length positive and negative tooth segments, so as to realize the synchronous movement of the two sets of positioning arm assemblies towards or away from each other, and a second handwheel connected to one end of the lateral lead screw.

[0007] Preferably, the positioning arm assembly includes a movable block threadedly connected to the transverse lead screw, the movable block is provided with a connecting cylinder, the side wall of the connecting cylinder is provided with a through groove, and an L-shaped positioning arm is slidably provided in the connecting cylinder, and a limiting bolt threadedly connected to the positioning arm through the through groove and able to tightly abut against the side wall of the connecting cylinder.

[0008] Preferably, the height adjustment mechanism is a scissor lift platform, which is fixed on the sliding base, and its top is provided with a support plate for supporting the engine.

[0009] Preferably, the base frame is provided with a counterweight.

[0010] With the above structure, this utility model has the following advantages:

[0011] 1. This utility model integrates three independent adjustment mechanisms for longitudinal, lateral, and height, breaking down the difficult-to-control aerial multi-dimensional alignment that relies on crane operation in traditional hoisting into precise ground mechanical adjustments in three directions. Operators can easily make fine adjustments to the engine in the front-back, left-right, and up-down directions by turning the handwheel, solving the problem of poor alignment accuracy and greatly improving positioning accuracy and success rate.

[0012] 2. Two sets of positioning arm assemblies that can move synchronously towards or away from each other, the reference surface formed by their inner sides can play an active guiding and coarse positioning role during the engine's descent, effectively preventing the engine from swaying in mid-air and avoiding the risk of collision with the vehicle body. The height adjustment mechanism can provide stable support from the bottom after the engine is initially positioned, so that the engine changes from a suspended state to a stable support state. Fine adjustments can be made in this state, making operation safer and less strenuous.

[0013] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is the front view of this utility model.

[0017] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0018] As shown in the figure: 1. Base frame; 2. Moving wheel; 3. Counterweight; 4. Longitudinal lead screw; 5. Longitudinal guide rod; 6. First handwheel; 7. Sliding base; 8. Scissor lift platform; 9. Bearing plate; 10. Sliding seat; 11. Second handwheel; 12. Connecting cylinder; 13. Positioning arm; 14. Through groove; 15. Limit bolt; 16. Slide groove. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] Combined with appendix Figures 1-3 An auxiliary device for lifting and positioning the engine of armored equipment includes a base frame 1, a longitudinal positioning mechanism, a lateral positioning mechanism, and a height adjustment mechanism.

[0022] The base frame 1 has a bottom surface equipped with a movable wheel 2 with a braking function.

[0023] The longitudinal positioning mechanism is installed on the base frame 1. The longitudinal positioning mechanism includes a longitudinal drive component and a sliding base 7 that is driven by the longitudinal drive component to slide in the front-back direction.

[0024] The lateral positioning mechanism is mounted on the sliding base 7. The lateral positioning mechanism includes a lateral drive assembly and a positioning arm 13 assembly that is driven by the lateral drive assembly to move in the left and right direction. The positioning arm assembly has two sets and their relatively inner sides form a reference surface for guiding and positioning the lateral position of the engine.

[0025] The height adjustment mechanism is installed on the sliding base 7 and located below the lateral positioning mechanism. It is used to support the engine from the bottom and make fine adjustments in the height direction.

[0026] In one embodiment of this utility model, the longitudinal drive assembly includes a longitudinal lead screw 4 and at least one longitudinal guide rod 5 arranged parallel to the longitudinal lead screw 4. A sliding base 7 engages with the longitudinal lead screw 4 via a threaded connecting sleeve and is slidably connected to the longitudinal guide rod 5 via a linear bearing. One end of the longitudinal lead screw 4 is connected to a first handwheel 6. Specifically, in conjunction with... Figure 1 As shown, the longitudinal lead screw 4 is rotatably supported on the base frame 1 via a bearing seat, and its axis is aligned with the front-rear direction of the device. Two longitudinal guide rods 5 are located on both sides of the longitudinal lead screw 4 and are fixedly connected to the base frame 1 via supports, forming a stable sliding guide pair. The sliding base 7 is a rigid platform, with a nut sleeve that mates with the longitudinal lead screw 4 and a linear bearing fitted on the longitudinal guide rod 5 fixedly installed at its lower part. When the operator rotates the first handwheel 6 clockwise or counterclockwise, the longitudinal lead screw 4 rotates accordingly, thereby driving the sliding base 7 and its entire upper structure to move smoothly forward or backward along the guide rods, achieving precise adjustment of the engine's longitudinal position.

[0027] In one embodiment of this utility model, the lateral drive assembly includes a sliding seat 10 disposed on the side wall of the sliding base 7. The sliding seat 10 has a T-shaped groove 16, in which a lateral lead screw is rotatably mounted. The lateral lead screw has equal-length positive and negative thread segments for connecting the two sets of positioning arm assemblies synchronously moving towards or away from each other. One end of the lateral lead screw is connected to a second handwheel 11. Specifically, in conjunction with... Figure 1 As shown, the sliding seat 10 is fixedly installed on one edge of the upper surface of the sliding base 7. The transverse lead screw is supported in the T-shaped groove 16 of the sliding seat 10 by a bearing. Its middle section is machined into threads of equal length and opposite directions. When the second handwheel 11 is rotated, the transverse lead screw rotates. Since the threads rotate in opposite directions, the two transmission components that mesh with the positive and negative thread sections respectively produce synchronous opposite or reciprocating movements.

[0028] In one embodiment of this utility model, the positioning arm assembly includes a movable block threadedly connected to a transverse lead screw. A connecting cylinder 12 is provided on the movable block, and a through groove 14 is formed on the side wall of the connecting cylinder 12. An L-shaped positioning arm 13 is slidably disposed within the connecting cylinder 12, and a limiting bolt 15, threaded through the through groove 14 and capable of tightly abutting against the side wall of the connecting cylinder 12, is threaded onto the positioning arm 13. Specifically, in conjunction with... Figure 1 As shown, the lower part of the movable block has a flange that matches the T-shaped slide groove 16, allowing it to be locked in the slide groove 16 and slide in a straight line. The connecting cylinder 12 is vertically fixed above the movable block. The vertical section of the L-shaped positioning arm 13 is inserted into the connecting cylinder 12 and can slide up and down along the connecting cylinder 12 to adjust its effective height to adapt to the lifting point height of different engine models. The limiting bolt 15 passes through the elongated through groove 14 on the side wall of the connecting cylinder 12 and is screwed into the threaded hole on the positioning arm 13. When the positioning arm 13 is adjusted to the required height, the limiting bolt 15 is tightened so that its end face is tightly pressed against the outer wall of the connecting cylinder 12. The friction force is used to firmly lock the positioning arm 13 in the current position. The inner side walls of the horizontal sections of the two positioning arms 13 are smooth and flat, forming a precise lateral positioning reference surface.

[0029] In one embodiment of this utility model, the height adjustment mechanism is a scissor lift platform 8, which is fixed to the sliding base 7, and its top is provided with a support plate 9 for supporting the engine. Specifically, as shown... Figure 3 As shown, the bottom frame of the scissor lift platform 8 is bolted to the middle of the sliding base 7, located below the lateral positioning mechanism. Its top support plate 9 is a flat steel plate with sufficient strength to withstand the engine weight. The scissor lift platform 8 can be driven to lift by a hydraulic system, electric push rod, or mechanical screw. By controlling the extension and retraction of the scissor lift platform 8, precise vertical height adjustments can be made to the support plate 9 and the engine on it.

[0030] In one embodiment of this utility model, a counterweight 3 is provided on the base frame 1. Specifically, as shown... Figure 3 As shown, the counterweight 3 consists of several cast iron blocks, which are detachably placed at the bottom of the base frame 1. The purpose of adding the counterweight 3 is to lower the center of gravity of the entire device, increase its stability, prevent it from tipping over when supporting a heavy engine, and ensure operational safety.

[0031] In summary, the working principle of this utility model is as follows:

[0032] When it is necessary to install an engine on armored equipment, first release the brake on the moving wheel 2, push the device to the front of the engine mounting position under the vehicle body, then tighten the fixing device of the moving wheel 2, and make pre-adjustments according to the technical parameters of the engine to be installed: rotate the second handwheel 11 to drive the two positioning arms 13 to move synchronously, so that the width between their inner reference planes is consistent with the corresponding size of the engine mounting seat on the vehicle body; rotate the first handwheel 6 to move the sliding base 7 to the estimated longitudinal starting position of the engine installation; lower the support plate 9 of the height adjustment mechanism to the lowest point;

[0033] After the preparation is completed, use a crane to lift the engine and slowly move it above the device. The operator guides the crane so that the reference parts such as the engine flywheel housing or the lifting bracket are gradually lowered from above into the guide channel formed by the two positioning arms 13. During this process, the reference surfaces of the positioning arms 13 automatically guide and coarsely position the engine in the lateral direction, effectively correcting its horizontal deviation.

[0034] When the engine is lowered to near the installation height, the height adjustment mechanism is activated to raise the scissor lift platform 8 until its top support plate 9 smoothly contacts and supports the bottom of the engine. At this point, the weight of the engine is shared by the crane and this device, resulting in an extremely stable state. Subsequently, the operator can make fine adjustments: fine-tune the longitudinal positioning mechanism to move the engine back and forth to align with the mounting bolt holes; if fine-tuning of the lateral position is required, the second handwheel 11 can be slightly turned; finally, the height mechanism is finely adjusted again to ensure that the engine mounting surface is completely flush with the vehicle body mounting seat.

[0035] After all connecting bolts are successfully inserted and pre-tightened, the height adjustment mechanism is lowered slightly to transfer the weight of the engine completely onto the vehicle body support. Then the hook can be released, the device removed, and all bolts finally tightened to the specified torque. The entire hoisting and positioning process is safe, precise, and efficient, changing the outdated operation method that relied on manual pushing and pulling of the suspended engine.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. An engine hoist positioning aid for an armoured vehicle, characterised in that, include: A base frame, the bottom surface of which is provided with casters with braking function; A longitudinal positioning mechanism is mounted on the base frame. The longitudinal positioning mechanism includes a longitudinal driving component and a sliding base that is driven by the longitudinal driving component to slide in the front-back direction. A lateral positioning mechanism is mounted on the sliding base. The lateral positioning mechanism includes a lateral drive assembly and a positioning arm assembly that is driven by the lateral drive assembly to move in the left-right direction. The positioning arm assembly has two sets, and their relatively inner sides form a reference surface for guiding and positioning the lateral position of the engine. A height adjustment mechanism is mounted on the sliding base and located below the lateral positioning mechanism, for supporting the engine from the bottom and making fine adjustments in the height direction.

2. The armored vehicle engine hoist positioning aid of claim 1, wherein: The longitudinal drive assembly includes a longitudinal lead screw and at least one longitudinal guide rod arranged parallel to the longitudinal lead screw. The sliding base is engaged with the longitudinal lead screw through a threaded connecting sleeve and is slidably connected to the longitudinal guide rod through a linear bearing. One end of the longitudinal lead screw is connected to a first handwheel.

3. The armored vehicle engine hoist positioning aid of claim 1, wherein: The lateral drive assembly includes a sliding seat disposed on the side wall of the sliding base. The sliding seat has a T-shaped groove. A lateral lead screw is rotatably disposed in the groove, and the lateral lead screw has a threaded connection of equal length positive and negative tooth segments to realize the synchronous movement of the two sets of positioning arm assemblies towards or away from each other. One end of the lateral lead screw is connected to a second handwheel.

4. The armored vehicle engine hoist positioning aid of claim 3, wherein: The positioning arm assembly includes a movable block that is threadedly connected to the transverse lead screw. The movable block is provided with a connecting cylinder. A through groove is provided on the side wall of the connecting cylinder. An L-shaped positioning arm is slidably arranged in the connecting cylinder, and a limiting bolt that passes through the through groove and can tightly abut against the side wall of the connecting cylinder is threadedly connected to the positioning arm.

5. The armored vehicle engine hoist positioning aid of claim 1, wherein: The height adjustment mechanism is a scissor lift platform, which is fixed on the sliding base, and its top is provided with a support plate for supporting the engine.

6. The armored vehicle engine hoisting and positioning auxiliary device according to claim 1, characterized in that: The base frame is equipped with counterweights.

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