Switchable power tooth bag of steering axle

Abstract

The invention discloses a switchable power tooth bag of a steering axle, and relates to the technical field of power tooth bags. The switchable power gear packet of the steering axle comprises a gear packet shell, wherein the gear packet shell is fixedly connected to the position, close to an engine, of an automobile; the fluted disc is arranged in the tooth bag shell, the fluted disc is used for being connected with an automobile engine, the axis of the fluted disc is inserted in a penetrating mode, a connecting shaft is fixed to the axis of the fluted disc, converter mechanisms are arranged at the two ends of the connecting shaft, transmission shafts are connected to the converter mechanisms, and converters are used for controlling connection and disconnection of the connecting shaft and the transmission shafts; the two ends of the transmission shaft penetrate through the tooth bag shell, the transmission shaft is rotationally connected with the tooth bag shell, the side, arranged outside the tooth bag shell, of the transmission shaft is sleeved with a connecting sleeve, a through hole is formed in the middle of the connecting sleeve, the transmission shaft is arranged in the through hole, and the through hole of the connecting sleeve is used for being connected with a front axle of an automobile.

Description

Technical Field

[0001] The present invention relates to the technical field, and particularly to a steerable axle with a switchable power differential case. Background Art

[0002] Power switching devices are widely used in automobiles, ships, aerospace, and mechanical equipment. In the automotive industry, power switching devices are applied to the transmission system of automobiles to achieve the switching of forward, reverse, and idle gears. In the aerospace field, power switching devices are used to control the power output of engines and adjust them at different stages such as takeoff, cruise, and landing. In ships, power switching devices are used to achieve functions such as forward, reverse, and speed adjustment; in terms of mechanical equipment, power switching devices are used to adjust the rotation speed and operating mode of conveyor belts, working shafts, etc.

[0003] Common power switching methods are mainly achieved through a mechanical transfer case. This structure is similar to a conventional manual gearbox. By using auxiliary power to move the combined gear disk axially along the spline shaft, the engagement and separation of the combined gear disk with the first drive and the second drive are switched, thereby achieving power switching. However, this transfer case has a complex structure, a large volume, and a high cost. In addition, during the switching process, it must be in a stationary state. For example, when switching between forward, reverse, four-wheel drive, and two-wheel drive of an automobile, the vehicle must be in a stopped state, which brings inconvenience in use. Summary of the Invention

[0004] Therefore, an embodiment of the present invention provides a steerable axle with a switchable power differential case to solve the above-mentioned technical problems.

[0005] To achieve the above object, the embodiment of the present invention provides the following technical solutions:

[0006] A steerable axle with a switchable power differential case includes:

[0007] A differential case housing, which is fixedly connected to the position of the automobile close to the engine;

[0008] A gear disk, which is arranged inside the differential case housing. The gear disk is used to connect the automobile engine, and a connecting shaft is axially inserted and fixed through the axis of the gear disk. Converter mechanisms are arranged at both ends of the connecting shaft. A transmission shaft is connected to the converter mechanism. The converter is used to control the connection and disconnection between the connecting shaft and the transmission shaft. Both ends of the transmission shaft penetrate the differential case housing, and the transmission shaft is rotatably connected to the differential case housing. A connecting sleeve is sleeved on one side of the transmission shaft outside the differential case housing. A through hole is opened in the middle of the connecting sleeve, and the transmission shaft is placed inside the through hole. The through hole of the connecting sleeve is used to connect the front axle of the automobile.

[0009] Optionally, the converter mechanism includes a first rotating component and a second rotating component;

[0010] The first rotating assembly includes a first rotating disk, the first rotating disk is coaxially fixedly connected to the connecting shaft, a embedding groove is provided on a side of the first rotating disk away from the connecting shaft, and a plurality of clamping blocks are arranged at intervals on the inner side wall of the embedding groove, and the transmission shaft is coaxially rotatably connected to the embedding groove of the first rotating disk;

[0011] The second rotating assembly includes a second rotating disk, the second rotating disk is arranged in the embedding groove, and the second rotating disk is sleeved on the transmission shaft, the second rotating disk is fixedly connected to the transmission shaft, and at least one group of latch teeth are arranged on the circumference of the second rotating disk, the latch teeth include a first latch tooth and a second latch tooth, one end of the first latch tooth is hinged to the second rotating disk, and the other end of the second latch tooth can rotate along the radial direction of the second rotating disk, one end of the second latch tooth is hinged to the second rotating disk, and the other end of the second latch tooth can rotate along the radial direction of the second rotating disk, and the rotation directions of the first latch tooth and the second latch tooth are opposite;

[0012] When the first latching tooth and the second latching tooth are attached to the circumference of the second rotating disk, the second rotating disk can rotate in the embedding groove. When the first latching tooth / the second latching tooth rotates until the end thereof is away from the second rotating disk, the second rotating disk rotates and is caught by the block on the side wall of the embedding groove.

[0013] A reset assembly is provided between the first latching tooth, the second latching tooth and the second rotating disk, and pushes the first latching tooth and the second latching tooth to rotate until they are engaged with the latch block;

[0014] The transmission shaft is also provided with a shift fork assembly for driving the first latching tooth / the second latching tooth to rotate.

[0015] Optionally, the reset component is a reset spring arranged between the first latch tooth movable end / the second latch tooth movable end and the second rotating disk.

[0016] Optionally, the shift fork assembly includes a first rotating rod and a second rotating rod, the first rotating rod is inserted and fixed on the first latch tooth, and rotates coaxially with the first latch tooth, the second rotating rod is inserted and fixed on the second latch tooth, and rotates coaxially with the second latch tooth, a toggle block is sleeved on the transmission shaft, the toggle block is slidably connected to the transmission shaft, and a first push rod corresponding to the first rotating rod and a second push rod corresponding to the second rotating rod are provided on the toggle block close to the second rotating disk, the toggle block slides on the transmission shaft, and the first push rod pushes the first latch tooth to rotate or the second push rod pushes the second latch tooth to rotate, so that the first latch tooth / the second latch tooth engages with the block on the first rotating disk;

[0017] The shift block is provided with a driving mechanism for driving the two shift fork assemblies to move synchronously.

[0018] Optionally, the first rotating rod and the second rotating rod both include a horizontal portion and a vertical portion, the vertical portion of the first rotating rod is fixedly connected to the first latching tooth along the hinge axis of the first latching tooth, the horizontal portion of the first rotating rod is parallel to the surface of the second rotating disk, the vertical portion of the second rotating rod is fixedly connected to the second latching tooth along the hinge axis of the second latching tooth, and the horizontal portion of the second rotating rod is parallel to the surface of the second rotating disk;

[0019] The first push rod includes a first connection portion vertically extending from the toggle block toward one side of the second rotating disk, and a second connection portion bent toward one side of the second rotating disk, the length of the first connection portion is twice the vertical length of the second connection portion, and the projection of the first push rod on the second rotating disk intersects with the projection of the horizontal portion of the first rotating rod on the second rotating disk;

[0020] The second push rod includes a third connection portion bent by the toggle block toward one side of the second turntable, and a fourth connection portion vertically extending from the third connection portion toward one side of the second turntable, the vertical length of the third connection portion is half of the length of the fourth connection portion, and the projection of the second push rod on the second turntable intersects with the projection of the horizontal portion of the second rotating rod on the second turntable.

[0021] Optionally, the driving mechanism includes two paddles, and annular grooves are provided on the paddle blocks on both sides of the connecting shaft, and an arc groove matching the shape of the annular groove is provided at one end of the paddle, the paddle is clamped in the annular groove, and a connecting rod is fixedly connected between the two paddles, both ends of the connecting rod pass through the two paddles and are connected to the tooth package shell, and the connecting rod paddles are fixedly connected, the connecting rod is slidably connected to the tooth package shell, and a cylinder is provided at one end of the connecting end, the cylinder output shaft is coaxially and fixedly connected to the connecting rod, and the cylinder is fixedly connected to the outer wall of the tooth package shell.

[0022] Optionally, the latch teeth are provided in three groups, and the three groups of latch teeth are distributed in a circular array on the circumference of the second rotating disk.

[0023] Optionally, a bearing seat is provided on the side where the first turntable is connected to the connecting shaft, a bearing is provided in the bearing seat, and the transmission shaft passes through the second turntable and is fixedly connected to the bearing of the bearing seat, so that the transmission shaft is rotatably connected to the first turntable and the transmission shaft is fixedly connected to the second turntable.

[0024] Optionally, a retaining spring is provided on the transmission shaft, the retaining spring is fixedly connected to the transmission shaft, and the retaining spring is provided at the farthest sliding distance of the toggle block on the transmission shaft.

[0025] Optionally, the gear disc is a spur gear, a disc gear or a worm gear.

[0026] The present invention has at least the following beneficial effects:

[0027] In the present invention, the tooth package housing is installed near the engine. The gear disk is drivingly connected to the engine. The engine drives the gear disk and the connecting shaft to rotate. The transmission shaft is connected to the front axle of the wheel through a connecting sleeve, and the connecting shaft and the transmission shaft are connected through a converter. The converter can switch the connection state between the connecting shaft and the transmission shaft, so as to switch the driving state according to the needs of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the prior art and the present invention, the drawings required for describing the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only exemplary. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained by extension based on the provided drawings.

[0029] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0030] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0031] Figure 2 is a schematic diagram of the internal (state 1) structure of an embodiment of the present invention;

[0032] Figure 3 is a schematic diagram of the internal (state 3) structure of an embodiment of the present invention;

[0033] Figure 4 is a schematic diagram of the internal (state 2) structure of an embodiment of the present invention;

[0034] Figure 5 is a schematic diagram of the internal first perspective structure of an embodiment of the present invention;

[0035] Figure 6 is Figure 5 a sectional structure schematic diagram of part A-A in

[0036] Figure 7 is a schematic diagram of the converter mechanism structure in state 1 of an embodiment of the present invention;

[0037] Figure 8 is a schematic diagram of the converter mechanism structure in state 2 of an embodiment of the present invention;

[0038] Figure 9It is a schematic diagram of the converter mechanism structure in state 3 of an embodiment of the present invention;

[0039] Figure 10 A schematic diagram of a second viewing angle structure of an embodiment of the present invention;

[0040] Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure of the middle BB part.

[0041] Description of reference numerals:

[0042] 1. Tooth package housing; 2. Toothed disc; 3. Connecting shaft; 4. Converter mechanism; 41. First rotating assembly; 411. First rotating disc; 412. Embossed groove; 413. Block; 42. Second rotating assembly; 421. Second rotating disc; 422. First clamping tooth; 423. Second clamping tooth; 43. Fork assembly; 431. First rotating rod; 432. Second rotating rod; 433. Toggle block; 434. First push rod; 4341. First connecting part; 4342. Second connecting part; 435. Second push rod; 4351. Third connecting part; 4352. Fourth connecting part; 436. Driving mechanism; 4361. Paddle; 4362. Connecting rod; 4363. Cylinder; 5. Transmission shaft; 6. Connecting sleeve; 7. Through hole; 8. Bearing seat; 9. Retaining spring; 10. Cylinder seat; 11. Connecting plate. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are intended to distinguish the objects referred to. For schemes with a sequential flow, this terminology does not have to be understood as describing a specific order or sequence. For schemes with device structures, this terminology does not distinguish between importance, positional relationships, etc.

[0045] In addition, the terms "comprises", "has" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that have been explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units that are added based on further optimization schemes conceived by the present invention.

[0046] As shown Figures 1-11 in the figure, a switchable power differential for a steering axle disclosed by the present invention includes:

[0047] A differential housing 1, which is fixedly connected to a position of the vehicle close to the engine;

[0048] A gear disc 2, which is arranged in the differential housing 1. The gear disc 2 is used to connect to the vehicle engine, and a connecting shaft 3 is inserted through and fixed to the axis of the gear disc 2. Converter mechanisms 4 are arranged at both ends of the connecting shaft 3. A transmission shaft 5 is connected to the converter mechanism 4. The converter is used to control the on-off of the connecting shaft 3 and the transmission shaft 5. Both ends of the transmission shaft 5 penetrate the differential housing 1, and the transmission shaft 5 is rotatably connected to the differential housing 1. A connecting sleeve 6 is sleeved on one side of the transmission shaft 5 outside the differential housing 1. A through hole 7 is opened in the middle of the connecting sleeve 6. The transmission shaft 5 is placed in the through hole 7. The through hole 7 of the connecting sleeve 6 is used to connect to the front axle of the vehicle.

[0049] The above-mentioned gear disc 2 can be in the structure of a spur gear, a disk gear or a worm gear, etc. It is installed in the differential housing 1 and is connected to the vehicle engine according to the transmission requirements. Specifically, it can be connected to the output gear of the transmission on the transverse engine or the transmission shaft of the vehicle, and the engine drives the gear disc 2. A connecting shaft 3 is inserted through the center of the gear disc 2. The connecting shaft 3 penetrates both sides of the gear disc 2, and the connecting shaft 3 is fixedly connected to the gear disc 2 as a whole. Converter mechanisms 4 are respectively arranged on both sides of the connecting shaft 3. The two converter mechanisms 4 are linked. A transmission shaft 5 is connected to each of the two converters. One end of the transmission shaft 5 is linked to the connecting shaft 3 through the converter mechanism 4. The other ends of the two transmission shafts 5 are connected to the differential housing 1. By arranging bearings on the differential housing 1, the transmission shaft 5 is rotatably connected to the differential housing 1. The transmission shaft 5 extends out of the differential housing 1 for a certain length to connect to the connecting sleeve 6. The connecting sleeve 6 is sleeved on the extended part of the transmission shaft 5 and is relatively fixed to the connecting sleeve 6, and can rotate with the transmission shaft 5. The length of the connecting sleeve 6 is greater than the extended length of the transmission shaft 5, at least twice the extended length of the transmission shaft 5. The remaining part of the through hole 7 of the connecting sleeve 6 is used to penetrate the front axle that drives the vehicle's front wheels. The transmission shaft 5 and the connecting sleeve 6 drive the vehicle's front axle to rotate, thereby driving the vehicle's front wheels to form front-wheel drive and cooperating with the rear-wheel drive wheels for four-wheel drive.

[0050] According to the actual installation requirements, for different installation positions and installation methods, the specific shape of the above-mentioned differential housing 1 can be changed to be suitable for the vehicle body chassis.

[0051] In a further embodiment, the converter mechanism 4 includes a first rotating component 41 and a second rotating component 42;

[0052] The first rotating assembly 41 includes a first rotating disk 411, which is coaxially fixedly connected to the connecting shaft 3. A groove 412 is formed on the side of the first rotating disk 411 away from the connecting shaft 3, and a plurality of clamping blocks 413 are arranged at intervals on the inner side wall of the groove 412. The transmission shaft 5 is coaxially rotatably connected to the groove 412 of the first rotating disk 411.

[0053] The second rotating assembly 42 includes a second rotating disk 421, which is arranged in the embedding groove 412 and sleeved on the transmission shaft 5. The second rotating disk 421 is fixedly connected to the transmission shaft 5, and at least one group of latch teeth are arranged on the circumference of the second rotating disk 421, and the latch teeth include a first latch tooth 422 and a second latch tooth 423, one end of the first latch tooth 422 is hinged to the second rotating disk 421, and the other end of the second latch tooth 423 can rotate along the radial direction of the second rotating disk 421, one end of the second latch tooth 423 is hinged to the second rotating disk 421, and the other end of the second latch tooth 423 can rotate along the radial direction of the second rotating disk 421, and the rotation directions of the first latch tooth 422 and the second latch tooth 423 are opposite;

[0054] When the first latching teeth 422 and the second latching teeth 423 are attached to the circumference of the second rotating disk 421, the second rotating disk 421 can rotate in the embedding groove 412. When the first latching teeth 422 / the second latching teeth 423 rotate until their ends are away from the second rotating disk 421, the second rotating disk 421 rotates and is caught by the block 413 on the side wall of the embedding groove 412.

[0055] A reset assembly is disposed between the first latching tooth 422 and the second latching tooth 423 and the second rotating disk 421 to push the first latching tooth 422 and the second latching tooth 423 to rotate until they are engaged with the latch block 413;

[0056] The transmission shaft 5 is also provided with a shift fork assembly 43 for driving the first latching tooth 422 / the second latching tooth 423 to rotate.

[0057] The converter structure is divided into two parts, one part is the first rotating assembly 41, and the second part is the second rotating assembly 42, wherein the first rotating assembly 41 is fixed to the connecting shaft 3, and the second rotating assembly 42 is fixed to the transmission shaft 5;

[0058] Specifically, the first rotating assembly 41 includes a first rotating disk 411, the end of the connecting shaft 3 is coaxially fixedly connected to one side of the first rotating disk 411, a circular embedding groove 412 is provided on the other side of the first rotating disk 411, and a clamping block 413 is provided on the inner side wall of the embedding groove 412, the clamping block 413 is a trapezoidal structure, the clamping block 413 is arranged toward the center of the first rotating disk 411, and gradually decreases in the direction toward the center of the circle;

[0059] The second rotating assembly 42 includes a second turntable 421. The second turntable 421 is arranged in the groove 412 of the first turntable 411, and the two are concentrically arranged. The maximum radius of the second turntable 421 is smaller than the distance between the clamping block 413 and the center of the first turntable 411, so that the second turntable 421 can rotate within the first turntable 411. At least one set of teeth is arranged on the circumferential side of the second turntable 421. In this embodiment, the teeth are arranged in three groups, and the three groups of teeth are arranged in a circumferential array. Each group of teeth includes a first tooth 422 and a second tooth 423. The first tooth 422 and the second tooth 423 are arc-shaped structures. An arc-shaped mounting groove is formed on the circumferential side of the second turntable 421. Two cylindrical hinge grooves are arranged on both sides of the mounting groove. One end of each of the first tooth 422 and the second tooth 423 is provided with a cylindrical hinge shaft structure. The first tooth 422 is mounted in the hinge groove on one side through the hinge shaft, and the second tooth 423 is mounted in the hinge groove on the other side through the hinge shaft, so that a rotating structure is formed between the first tooth 422 and the second tooth 423 and the second turntable 421. The first tooth 422 and the second tooth 423 can both rotate around the hinge shaft, so that the arc segments of the first tooth 422 and the second tooth 423 fit against the side of the second turntable 421 or move away from the side of the second turntable 421. When the first tooth 422 and the second tooth 423 are completely in contact with the second turntable 421, the outer diameters of the first tooth 422 and the second tooth 423 are slightly smaller than or equal to the distance between the clamping block 413 and the center of the first turntable 411. When the first tooth 422 / second tooth 423 rotates to the arc segment away from the second turntable 421, the first tooth 422 / second tooth 423 contacts the clamping block 413 during the rotation of the second turntable 421, forming an engaged one-way ratchet and pawl mechanism;

[0060] A reset assembly is arranged between the movable ends of the first tooth 422 and the second tooth 423 and the second turntable 421, so that the first tooth 422 and the second tooth 423 can always remain engaged with the clamping block 413 during rotation.

[0061] In a specific embodiment, the reset assembly is a reset spring arranged between the movable end of the first tooth 422 / second tooth 423 and the second turntable 421.

[0062] The above-mentioned reset assembly can also be a connection structure that makes the connection between the hinge shaft and the hinge groove resetable. The specific structure will not be elaborated here.

[0063] The above-mentioned fork assembly 43 is arranged on the transmission shaft 5 to control the rotation of the first tooth 422 and the second tooth 423 through the fork assembly 43.

[0064] In a specific embodiment, the fork assembly 43 includes a first rotating rod 431 and a second rotating rod 432. The first rotating rod 431 is inserted and fixed on the first cog 422 and rotates coaxially with the first cog 422. The second rotating rod 432 is inserted and fixed on the second cog 423 and rotates coaxially with the second cog 423. A shifting block 433 is sleeved on the transmission shaft 5. The shifting block 433 is slidably connected to the transmission shaft 5. On one side of the shifting block 433 close to the second turntable 421, there is a first push rod 434 corresponding to the first rotating rod 431 and a second push rod 435 corresponding to the second rotating rod 432. The shifting block 433 slides on the transmission shaft 5. By pushing the first rotating rod 431 through the first push rod 434 or pushing the second rotating rod 432 through the second push rod 435, the first cog 422 / second cog 423 is engaged with the block 413 on the first turntable 411;

[0065] A driving mechanism 436 is arranged on the shifting block 433 to drive the two fork assemblies 43 to move synchronously.

[0066] The above-mentioned first rotating rod 431 and second rotating rod 432 are respectively fixed on the first cog 422 and the second cog 423. And the first rotating rod 431 is fixed on the hinge shaft of the first cog 422, and the second rotating rod 432 is fixed on the hinge shaft of the second cog 423, so that the first cog 422 can be driven to rotate by pushing the first rotating rod 431, and the second cog 423 can be driven to rotate by the second rotating rod 432;

[0067] The first rotating rod 431 and the second rotating rod 432 are pushed by the first push rod 434 and the second push rod 435 arranged on the shifting block 433. Among them, the shifting block 433 is sleeved on the transmission shaft 5 and is slidably connected to the transmission shaft 5. They can slide between each other but will not rotate relatively. The first push rod 434 and the second push rod 435 are arranged on one side of the shifting block 433 close to the second turntable 421. By sliding the shifting block 433 on the transmission shaft 5, the first push rod 434 and the second push rod 435 approach or move away from the first rotating rod 431 and the second rotating rod 432, and drive the first rotating rod 431 and the second rotating rod 432 to rotate during the approaching or moving away process, so as to drive the rotation of the first cog 422 and the second cog 423.

[0068] In a further embodiment, the first rotating rod 431 and the second rotating rod 432 both include a horizontal portion and a vertical portion, the vertical portion of the first rotating rod 431 is fixedly connected to the first latching tooth 422 along the hinge axis of the first latching tooth 422, the horizontal portion of the first rotating rod 431 is parallel to the surface of the second rotating disk 421, the vertical portion of the second rotating rod 432 is fixedly connected to the second latching tooth 423 along the hinge axis of the second latching tooth 423, and the horizontal portion of the second rotating rod 432 is parallel to the surface of the second rotating disk 421;

[0069] The first push rod 434 includes a first connection portion 4341 vertically extending from the toggle block 433 toward one side of the second rotating disk 421, and a second connection portion 4342 bent from the first connection portion 4341 toward one side of the second rotating disk 421, the length of the first connection portion 4341 is twice the vertical length of the second connection portion 4342, and the projection of the first push rod 434 on the second rotating disk 421 intersects with the projection of the horizontal portion of the first rotating rod 431 on the second rotating disk 421;

[0070] The second push rod 435 includes a third connection portion 4351 bent by the toggle block 433 toward the side of the second turntable 421, and a fourth connection portion 4352 vertically extending from the third connection portion 4351 toward the side of the second turntable 421, the vertical length of the third connection portion 4351 is half of the length of the fourth connection portion 4352, and the projection of the second push rod 435 on the second turntable 421 intersects with the projection of the horizontal portion of the second rotating rod 432 on the second turntable 421.

[0071] In this embodiment, the first rotating rod 431 and the second rotating rod 432 are both L-shaped structures, including a horizontal portion and a vertical portion. The vertical portion of the first rotating rod 431 is fixed to the hinge shaft of the first latching tooth 422, and the vertical portion of the second rotating rod 432 is fixed to the hinge shaft of the second latching tooth 423. The horizontal portion of the first rotating rod 431 and the horizontal portion of the second rotating rod 432 are arranged to point to the transmission shaft 5.

[0072] Correspondingly, the first push rod 434 is used to push the first rotating rod 431 to rotate, and is provided with a three-section structure of two parts, namely, a first connecting part 4341 and a second connecting part 4342, wherein the first connecting part 4341 is a straight rod structure vertically pointing to the second rotating disk 421, the second connecting part 4342 is an arc segment arranged at one side at the bottom end of the first connecting part 4341, and the length of the first connecting part 4341 in the vertical direction is twice that of the first connecting part 4341; the second push rod 435 is used to push the second rotating rod 432 to rotate, and is also provided with a three-section structure of two parts, namely, a third connecting part 4351 and a fourth connecting part 4352, wherein the third connecting part 4351 is an arc segment extending toward one side, the fourth connecting part 4352 is a vertical segment extending from the bottom end of the third connecting part 4351 toward the second rotating disk 421, and the length of the fourth connecting part 4352 is twice that of the length of the third connecting part 4351 in the vertical direction.

[0073] In order to prevent the second turntable 421 from interfering with the first push rod 434 and the second push rod 435, a through groove is opened at a position corresponding to the first push rod 434 and the second push rod 435 on the second turntable 421. When the toggle block 433 drives the first push rod 434 and the second push rod 435 to approach the second turntable 421, the first push rod 434 and the second push rod 435 extend into the through groove.

[0074] Specifically, when the toggle block 433 slides on the transmission shaft 5 to the farthest end from the second rotating disk 421, the bottom end of the second connecting portion 4342 of the first push rod 434 is tangent to the horizontal portion of the first rotating rod 431, and the fourth connecting portion 4352 of the second push rod 435 is tangent to the horizontal portion of the second rotating rod 432. At this time, the return spring between the first latch tooth 422 and the second rotating disk 421 is in an unextended state, and the movable end of the first latch tooth 422 is away from the second rotating disk 421. The return spring between the second latch tooth 423 and the second rotating disk 421 is in a compressed state, and the movable end of the second latch tooth 423 is in contact with the second rotating disk 421.

[0075] When the toggle block 433 slides on the transmission shaft 5 to the end closest to the second rotating disk 421, the upper half of the first connecting portion 4341 of the first push rod 434 is tangent to the horizontal portion of the first rotating rod 431, and the third connecting portion 4351 of the second push rod 435 is tangent to the horizontal portion of the second rotating rod 432. At this time, the return spring between the first latch tooth 422 and the second rotating disk 421 is in a compressed state, the movable end of the first latch tooth 422 is in contact with the second rotating disk 421, and the return spring between the second latch tooth 423 and the second rotating disk 421 is in an unextended state, and the movable end of the second latch tooth 423 is away from the second rotating disk 421.

[0076] When the shifting block 433 slides on the transmission shaft 5 to half of the farthest distance, the lower segment of the first connecting portion 4341 of the first push rod 434 is tangent to the horizontal portion of the first rotating rod 431, and the upper segment of the fourth connecting portion 4352 of the second push rod 435 is tangent to the horizontal portion of the second rotating rod 432. At this time, the return spring between the first latch 422 and the second turntable 421 is in a compressed state, the movable end of the first latch 422 is in contact with the second turntable 421, the return spring between the second latch 423 and the second turntable 421 is also in a compressed state, and the movable end of the second latch 423 is in contact with the second turntable 421.

[0077] More specifically, set the sliding distance of the shifting block 433 on the transmission shaft 5 as A, and divide A into three equal parts, which are A1, A2, and A3 from far to near (from the direction away from the second turntable 421 to the direction close to the second turntable 421); set the length of the first push rod 434 as B, the length of the first connecting portion 4341 as B1, and the length of the second connecting portion 4342 as B2; set the length of the second push rod 435 as C, the length of the third connecting portion 4351 as C1, and the length of the fourth connecting portion 4352 as C2;

[0078] B1 = 2 * B2; C1 = 1 / 2 * C2; A1 = 1 / 2 * B1 = C1; A2 = 1 / 2 * B1 = 1 / 2 * C2;

[0079] A3 = B2 = 1 / 2 * C2;

[0080] Take the process of the shifting block 433 gradually approaching the second turntable 421 as an example:

[0081] State 1: When the shifting block 433 is at the farthest end, at this time, the horizontal portion of the first rotating rod 431 is tangent to the B2 portion of the first push rod 434. At this time, the first latch 422 is in an open state, the horizontal portion of the second rotating rod 432 is tangent to the lower half of the C2 of the second push rod 435, and at this time, the second latch 423 is in a closed state;

[0082] When the shifting block 433 slides in the A1 - A2 section, the B2 section of the first push rod 434 gradually pushes the first rotating rod 431 (the horizontal portion always maintains a tangent state under the action of the return spring) to rotate, so that the first latch 422 gradually closes, the C2 section of the second push rod 435 does not push the second rotating rod 432 to rotate, and the second latch 423 remains closed;

[0083] State 2: When the shifting block 433 slides to the A2 section, the first latch 422 is closed and the second latch 423 is closed;

[0084] When the toggle block 433 slides in the A2-A3 section, the B1 section of the first push rod 434 will not push the first rotating rod 431 to rotate, the first latch tooth 422 is always closed, and the C1 section of the second push rod 435 no longer blocks the second rotating rod 432 (conversely, in the process of the toggle block 433 moving from near to far, the second rotating rod 432 is pushed to rotate by C1 of the second push rod 435, and the reset spring is compressed), and the reset spring between the second rotating rod 432 and the second turntable 421 recovers its deformation, pushes the second rotating rod 432 to rotate, and causes the second latch tooth 423 to gradually open.

[0085] State 3: when the toggle block 433 slides to the nearest end of A3, the first latching tooth 422 is in a closed state, and the second latching tooth 423 is in an open state.

[0086] The above-mentioned state 1 corresponds to the forward driving state of the front wheels of the automobile. At this time, the toothed disc 2 rotates under the drive of the engine, and the toothed disc 2 drives the connecting shaft 3 and the first rotating disc 411 integrated therewith to rotate; and because the first latching tooth 422 is in an open state, the first latching tooth 422 is engaged with the latching of the first rotating disc 411, and under the drive of the first chuck, the second chuck will rotate accordingly, and the rotation of the second chuck will drive the transmission shaft 5 fixed thereto as an integral body to rotate, and then drive the connecting sleeve 6 and the front axle of the front wheels of the automobile to rotate through the transmission shaft 5;

[0087] The above-mentioned state 2 corresponds to the rear-wheel drive state of the car. At this time, the sprocket 2 rotates under the drive of the engine, and the sprocket 2 drives the connecting shaft 3 and the first rotating disk 411 integrated therewith to rotate; and because the first latch tooth 422 and the second latch tooth 423 are both in a closed state, the second rotating disk 421 and the first rotating disk 411 can rotate relative to each other, and the first rotating disk 411 will not drive the second rotating disk 421 and the transmission shaft 5 to rotate, and thus no longer drive the connecting sleeve 6 and the front axle of the front wheel, and the rear wheel is driven at this time.

[0088] The above-mentioned state 3 corresponds to the backward (reverse gear) state of the automobile. At this time, the sprocket 2 rotates under the drive of the engine, and the sprocket 2 drives the connecting shaft 3 and the first rotating disk 411 integrated therewith to rotate; and since the first latch tooth 422 is in a closed state and the second latch tooth 423 is in an open state, the second latch tooth 423 is engaged with the clamping block 413 on the first rotating disk 411. Driven by the first chuck (in the opposite direction to state 1), the second chuck will rotate accordingly, and the rotation of the second chuck will drive the transmission shaft 5 fixed thereto to rotate, and then drive the connecting sleeve 6 and the front axle of the front wheel of the automobile to rotate through the transmission shaft 5.

[0089] In a further embodiment, the driving mechanism 436 includes two paddles 4361. Annular grooves are formed on the toggling blocks 433 on both sides of the connecting shaft 3. One end of each paddle 4361 is provided with an arc-shaped groove adapted to the shape of the annular groove. The paddle 4361 is snap-fitted into the annular groove, and a connecting rod 4362 is fixedly connected between the two paddles 4361. Both ends of the connecting rod 4362 penetrate through the two paddles 4361 and are connected to the gear case housing 1, and the connecting rod 4362 is fixedly connected to the paddle 4361. The connecting rod 4362 is slidably connected to the gear case housing 1. One end of the connecting end is provided with a cylinder 4363. The output shaft of the cylinder 4363 is coaxially and fixedly connected to the connecting rod 4362. The cylinder 4363 is fixedly connected to the outer side wall of the gear case housing 1.

[0090] The above-mentioned paddle 4361 is snap-fitted into the annular groove on the toggling block 433 through the arc-shaped groove. Then, the paddles 4361 on both sides of the gear disk 2 are connected into one body by a connecting rod 4362. The two toggling blocks 433 are driven to move synchronously through the connecting rod 4362. A cylinder 4363 is fixed on the outside of the gear case housing 1, and the output end of the cylinder 4363 is fixedly connected to the connecting rod 4362.

[0091] The above-mentioned cylinder 4363 can also be an electric push rod or an electromagnetic push rod.

[0092] In another embodiment, according to the installation requirements, two cylinders 4363 can be provided, one for each paddle 4361.

[0093] In an optimal embodiment, for the convenience of installation, the above-mentioned connecting rod 4362 can be configured not to penetrate through the paddle 4361, and its two ends can be fixed on the two paddles 4361. Then, the cylinder 4363 is arranged in the middle of the connecting rod 4362. The cylinder 4363 is connected and fixed to the bearing seats on both sides of the gear disk 2 through a connecting plate 11, or the cylinder 4363 is fixed to the gear case housing 1 through a cylinder seat 12. The cylinder 4363 drives the connecting rods 4362 and the paddles 4361 on both sides in the middle. It is necessary to ensure that the two paddles 4361 move synchronously in the same direction during the driving process of the cylinder 4363.

[0094] In a further embodiment, a bearing seat 8 is provided on the side of the first turntable 411 connected to the connecting shaft 3. A bearing is arranged in the bearing seat 8. The transmission shaft 5 passes through the second turntable 421 and is fixedly connected to the bearing in the bearing seat 8, so that the transmission shaft 5 is rotatably connected to the first turntable 411, and the transmission shaft 5 is fixedly connected to the second turntable 421.

[0095] Further, a circlip 9 is arranged on the transmission shaft 5. The circlip 9 is fixedly connected to the transmission shaft 5. The circlip 9 is arranged at the farthest distance where the toggling block 433 slides on the transmission shaft 5.

[0096] By providing the retaining spring 9, the sliding movement of the toggle block 433 can be limited.

[0097] In another embodiment, a solenoid valve can be electrically connected to the cylinder 4363, and the control switch of the solenoid valve can be electrically connected to the reverse gear indicator switch of the car. When the four-wheel drive is turned on, the forward state (forward gear) is the default. When the reverse gear is engaged, the cylinder will push in the opposite direction.

[0098] The above specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0099] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0100] The present invention is described in more detail through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, it is obvious that several variations and improvements can be made to these specific embodiments, which all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the attached claims.

Claims

1. A steering axle with a switchable power differential carrier, characterized in that, include: A teeth pack housing, wherein the teeth pack housing is fixedly connected to a position of the automobile near the engine; A toothed disc, the toothed disc is arranged in the toothed package housing, the toothed disc is used to connect to the automobile engine, and the axis of the toothed disc is inserted and fixed with a connecting shaft, both ends of the connecting shaft are provided with a converter mechanism, a transmission shaft is connected to the converter mechanism, the converter is used to control the disconnection and linkage of the connecting shaft and the transmission shaft, both ends of the transmission shaft pass through the toothed package housing, the transmission shaft is rotatably connected to the toothed package housing, the transmission shaft is placed on one side outside the toothed package housing and is sleeved with a connecting sleeve, a through hole is opened in the middle of the connecting sleeve, the transmission shaft is placed in the through hole, and the through hole of the connecting sleeve is used to connect to the front axle of the automobile.

2. The switchable power differential carrier for a steering axle according to claim 1, wherein: The converter mechanism includes a first rotating assembly and a second rotating assembly; The first rotating assembly includes a first rotating disk, the first rotating disk is coaxially fixedly connected to the connecting shaft, a embedding groove is provided on a side of the first rotating disk away from the connecting shaft, and a plurality of clamping blocks are arranged at intervals on the inner side wall of the embedding groove, and the transmission shaft is coaxially rotatably connected to the embedding groove of the first rotating disk; The second rotating assembly includes a second rotating disk, the second rotating disk is arranged in the embedding groove, and the second rotating disk is sleeved on the transmission shaft, the second rotating disk is fixedly connected to the transmission shaft, and at least one group of latch teeth are arranged on the circumference of the second rotating disk, the latch teeth include a first latch tooth and a second latch tooth, one end of the first latch tooth is hinged to the second rotating disk, and the other end of the second latch tooth can rotate along the radial direction of the second rotating disk, one end of the second latch tooth is hinged to the second rotating disk, and the other end of the second latch tooth can rotate along the radial direction of the second rotating disk, and the rotation directions of the first latch tooth and the second latch tooth are opposite; When the first latching tooth and the second latching tooth are attached to the circumference of the second rotating disk, the second rotating disk can rotate in the embedding groove. When the first latching tooth / the second latching tooth rotates until the end thereof is away from the second rotating disk, the second rotating disk rotates and is caught by the block on the side wall of the embedding groove. A reset assembly is provided between the first latching tooth, the second latching tooth and the second rotating disk, and pushes the first latching tooth and the second latching tooth to rotate until they are engaged with the latch block; The transmission shaft is also provided with a shift fork assembly for driving the first latching tooth / the second latching tooth to rotate.

3. The switchable power differential carrier for a steering axle according to claim 2, characterized in that: The reset component is a reset spring arranged between the first latch tooth movable end / the second latch tooth movable end and the second rotating disk.

4. A steerable axle switchable power differential gear carrier according to claim 2, wherein: The shift fork assembly includes a first rotating rod and a second rotating rod, the first rotating rod is inserted and fixed on the first latch tooth, and rotates coaxially with the first latch tooth, the second rotating rod is inserted and fixed on the second latch tooth, and rotates coaxially with the second latch tooth. A toggle block is sleeved on the transmission shaft, and the toggle block is slidably connected to the transmission shaft. A first push rod corresponding to the first rotating rod and a second push rod corresponding to the second rotating rod are arranged on the toggle block close to the second rotating disk. The toggle block slides on the transmission shaft, and the first push rod pushes the first latch tooth to rotate or the second push rod pushes the second latch tooth to rotate, so that the first latch tooth / the second latch tooth engages with the block on the first rotating disk; The shift block is provided with a driving mechanism for driving the two shift fork assemblies to move synchronously.

5. The switchable power differential carrier for a steering axle according to claim 4, wherein: The first rotating rod and the second rotating rod each include a horizontal portion and a vertical portion, the vertical portion of the first rotating rod is fixedly connected to the first latching tooth along the hinge axis of the first latching tooth, the horizontal portion of the first rotating rod is parallel to the surface of the second rotating disk, the vertical portion of the second rotating rod is fixedly connected to the second latching tooth along the hinge axis of the second latching tooth, and the horizontal portion of the second rotating rod is parallel to the surface of the second rotating disk; The first push rod includes a first connection portion vertically extending from the toggle block toward one side of the second rotating disk, and a second connection portion bent toward one side of the second rotating disk, the length of the first connection portion is twice the vertical length of the second connection portion, and the projection of the first push rod on the second rotating disk intersects with the projection of the horizontal portion of the first rotating rod on the second rotating disk; The second push rod includes a third connection portion bent by the toggle block toward one side of the second turntable, and a fourth connection portion vertically extending from the third connection portion toward one side of the second turntable, the vertical length of the third connection portion is half of the length of the fourth connection portion, and the projection of the second push rod on the second turntable intersects with the projection of the horizontal portion of the second rotating rod on the second turntable.

6. A steerable axle switchable power differential carrier according to claim 4, characterized in that: The driving mechanism includes two paddles, and annular grooves are provided on the paddle blocks on both sides of the connecting shaft. An arc groove matching the shape of the annular groove is provided at one end of the paddle, and the paddle is clamped in the annular groove, and a connecting rod is fixedly connected between the two paddles, and both ends of the connecting rod pass through the two paddles and are connected to the tooth package shell, and the connecting rod paddles are fixedly connected, the connecting rod is slidably connected to the tooth package shell, and a cylinder is provided at one end of the connecting end, the cylinder output shaft is coaxially fixedly connected to the connecting rod, and the cylinder is fixedly connected to the outer wall of the tooth package shell.

7. The switchable power differential carrier for a steering axle according to claim 2, wherein: The latch teeth are arranged in three groups, and the three groups of latch teeth are distributed in a circular array on the circumferential side of the second rotating disk.

8. The switchable power differential carrier for a steering axle according to claim 4, characterized in that: A bearing seat is provided on one side where the first turntable is connected to the connecting shaft, and a bearing is provided in the bearing seat. The transmission shaft passes through the second turntable and is fixedly connected to the bearing of the bearing seat, so that the transmission shaft is rotationally connected to the first turntable and is fixedly connected to the second turntable.

9. The switchable power differential case for a steering axle according to claim 1, wherein: The transmission shaft is provided with a retaining spring, which is fixedly connected to the transmission shaft, and the retaining spring is arranged at the farthest sliding distance of the toggle block on the transmission shaft.

10. A steerable axle switchable power differential carrier according to claim 1, characterized in that: The gear plate is a spur gear, a disc gear or a worm gear.

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