Differential mechanism

Abstract

The utility model relates to the field of differential mechanisms, and discloses a differential mechanism which comprises an upper shell and a lower shell, an upper connecting plate and a lower connecting plate are arranged on the two sides of the upper shell and the two sides of the lower shell respectively, a driving part and a driven part are arranged on the lower connecting plate in a sliding mode, and an elastic piece is connected between the driving part and the lower connecting plate. The upper connecting plate is provided with a locking part corresponding to the driven part, the driving part is linked with the driven part, the lower connecting plate is slidably provided with a concave extrusion plate, the upper connecting plate is provided with a notch for the driving part to slide, the extrusion plate is used for fixing the upper connecting plate and the lower connecting plate, the lower shell is rotatably connected with a bolt, and the bolt is in threaded connection with the extrusion plate. The motion trail of the extrusion plate intersects with the driving part; when the upper shell and the lower shell of the differential mechanism need to be assembled and disassembled, connection and disconnection of the upper connecting plate and the lower connecting plate can be controlled only by rotating the bolt to drive the squeezing plate to move, and the device has the effect of quickly assembling and disassembling the upper shell and the lower shell.

Description

Technical Field

[0001] The utility model relates to the technical field of differentials, and particularly relates to a differential. Background Art

[0002] The differential is an important part of the vehicle transmission system. Its main function is to allow the vehicle's driving wheels to rotate at different speeds, so that the vehicle can turn smoothly and maintain stability.

[0003] Chinese Patent with the authorization announcement number CN109282009A discloses a differential, which includes a lower housing and an upper housing. The bottoms of both ends of the lower housing are equally spaced and fixedly connected with first connecting nuts, and the tops of both ends of the lower housing are fixedly connected with first clamping plates. The tops of both ends of the upper housing are equally spaced and fixedly connected with second connecting nuts, and the bottoms of both ends of the upper housing are provided with first clamping grooves. The top of the first clamping groove is fixedly connected with a first clamping strip. The middle part of the top of the upper housing is provided with a connecting end part, and a connecting port is opened on one side of the connecting end part. A connecting housing is provided at the connecting port.

[0004] However, the prior art still has the following technical problems: When the operator disassembles and assembles the upper and lower housings of the differential, it is necessary to remove and install the nuts and bolts one by one to disassemble and assemble the upper and lower housings, resulting in low work efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a differential, which has the effect of quickly disassembling and assembling the upper and lower housings.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A differential includes an upper housing and a lower housing. Upper connecting plates and lower connecting plates are respectively arranged on both sides of the upper housing and the lower housing. A driving part and a driven part are slidably arranged on the lower connecting plate, and an elastic part is connected between the driving part and the lower connecting plate. The upper connecting plate is provided with a locking part corresponding to the driven part. The driving part and the driven part are linked. A pressing plate is slidably arranged on the lower connecting plate. The pressing plate is in a "concave" shape. The upper connecting plate is provided with a concave opening for the driving part to slide. The pressing plate is used to fix the upper and lower connecting plates. The lower housing is rotatably connected with a bolt, and the bolt is threadedly connected with the pressing plate. The movement track of the pressing plate intersects with the driving part.

[0007] By adopting the above technical solutions, by arranging the pressing plate, the pressing plate is slidably connected to the lower connecting plate. The upper and lower inner side surfaces of the pressing plate are respectively tangent to the surfaces of the upper connecting plate and the lower connecting plate. When the pressing plate moves, it can realize the pressing connection and disconnection of the upper and lower connecting plates, and can achieve the purpose of quickly positioning the upper and lower housings through simple operations.

[0008] A further setting of the present utility model is as follows: The lower connecting plate is provided with a driving groove, the driving part includes a driving block and an inclined surface arranged above the driving block, the driving block is slidably connected to the driving groove, and a first elastic member is connected between the driving block and the lower housing.

[0009] A further setting of the present utility model is as follows: The lower connecting plate is provided with a driven groove, the driven part includes a driven block and clamping blocks slidably connected to both sides of the driven block, a second elastic member is connected between the clamping blocks and the driven block, and the ends of the clamping blocks are rounded.

[0010] A further setting of the present utility model is as follows: Both the first elastic member and the second elastic member are springs.

[0011] By adopting the above technical solution, when the driving block is not stressed, it can be pushed out from the concave opening under the action of the first elastic member, and the purpose of automatic reset of the driving part can be achieved.

[0012] A further setting of the present utility model is as follows: The locking part includes a locking groove and a clamping groove, the clamping groove corresponds to the clamping block, and the connection part between the clamping groove and the locking groove is rounded.

[0013] By adopting the above technical solution, through the rounded setting, the clamping block can smoothly slide into and out of the clamping groove when sliding into and out of the clamping groove.

[0014] A further setting of the present utility model is as follows: The lower connecting plate is provided with a swinging cavity, both ends of the swinging cavity are respectively connected to the driving groove and the driven groove, a central shaft is fixedly arranged in the swinging cavity, a swing rod is rotatably connected to the central shaft, and both ends of the swing rod are respectively hinged to the driving block and the driven block.

[0015] By adopting the above technical solution, the purpose of linkage between the driving part and the driven part can be achieved.

[0016] A further setting of the present utility model is as follows: The pressing plate protrudes with a first slider, and the lower connecting plate is provided with a first sliding groove for the first slider to slide.

[0017] A further setting of the present utility model is as follows: The first slider is embedded in the first sliding groove, and both the first slider and the first sliding groove are arranged in a "T" shape.

[0018] By adopting the above technical solution, the first slider is embedded in the first sliding groove and slides under the drive of the bolt, and the purpose of preventing the pressing plate from falling off can be achieved.

[0019] A further setting of the present utility model is as follows: The driving block protrudes with a second slider, the driving groove is provided with a second sliding groove, and the top end of the second sliding groove is lower than the top end of the first connecting plate.

[0020] By adopting the above technical solution, the purpose of preventing the driving block from disengaging from the lower connecting plate can be achieved.

[0021] A further setting of the present utility model is that: the driven block protrudes with a third slider, the driven groove is provided with a third sliding groove, and the top of the third sliding groove is lower than the top of the first connecting plate.

[0022] By adopting the above technical solution, the purpose of preventing the driven block from disengaging from the lower connecting plate can be achieved.

[0023] The beneficial effect of the present utility model is that: by providing a driven part, the driven part and the driving part are linked through a swing rod, the driven part is provided with a clamping block, the upper connecting plate is provided with a locking groove and a clamping groove, when the upper and lower connecting plates are squeezed by a squeezing plate, the driving part is stressed and drives the driven part to move upward, so that the driven part presses the clamping block into the clamping groove to realize the fixation of the upper and lower shells. Compared with the prior art, after the clamping plate leaves the clamping groove, it will be touched during the installation and disassembly process, resulting in force deformation and affecting the installation. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic cross-sectional structure diagram of the connection between the upper shell and the lower shell of the present utility model.

[0026] Figure 2 is Figure 1 A partial structural diagram of the connection between the upper connecting plate and the lower connecting plate.

[0027] Figure 3 is Figure 2 A partial structural diagram of the driven block and the locking groove.

[0028] Figure 4 It is a partial structural diagram of the connection structure between the lower connecting plate and the squeezing plate of the present utility model.

[0029] Figure 5 It is a schematic cross-sectional structure diagram of the swing cavity of the lower connecting plate of the present utility model.

[0030] In the figure, 1 is the upper housing; 11 is the upper connecting plate; 111 is the notch; 2 is the lower housing; 21 is the lower connecting plate; 211 is the extrusion plate; 2111 is the first slider; 212 is the driving groove; 2121 is the second sliding groove; 213 is the driven groove; 2131 is the third sliding groove; 214 is the swing cavity; 215 is the central axis; 216 is the swing rod; 217 is the first sliding groove; 22 is the bolt; 3 is the driving part; 31 is the first elastic part; 32 is the driving block; 321 is the second slider; 33 is the inclined surface; 4 is the driven part; 41 is the driven block; 411 is the third slider; 42 is the clamping block; 43 is the second elastic part; 5 is the locking part; 51 is the locking groove; 52 is the clamping groove. Detailed implementation manners

[0031] The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] An embodiment, a differential, as Figures 1-5 shown, includes an upper housing 1 and a lower housing 2. The upper housing 1 and the lower housing 2 are respectively provided with an upper connecting plate 11 and a lower connecting plate 21. The lower connecting plate 21 is provided with a driving groove 212. A driving block 32 is slidably connected in the driving groove 212. The top end of the driving block 32 is provided with an inclined surface 33. The driving block 32 and the inclined surface 33 form a driving part 3. A first elastic part 31 is connected between the driving block 32 and the lower housing 2. The first elastic part 31 is set as a spring. The driving groove 212 is provided with a second sliding groove 2121. The driving block 32 is protrudingly provided with a second slider 321. The second slider 321 is embedded in the second sliding groove 2121. The lower connecting plate 21 is provided with a driven groove 213. A driven block 41 is slidably connected in the driven groove 213. The driven block 41 is protrudingly provided with a third slider 411. The driven groove 213 is provided with a third sliding groove 2131. The third slider 411 is embedded in the third sliding groove 2131. The two sides of the driven block 41 are slidably connected with clamping blocks 42. The driven block 41 and the clamping blocks 42 form a driven part 4. The end of the clamping block 42 is rounded and a second elastic part 43 is connected between the clamping block 42 and the driven block 41. The second elastic part 43 is set as a spring. The lower connecting plate 21 is provided with a swing cavity 214. The two ends of the swing cavity 214 are respectively communicated with the driving groove 212 and the driven groove 213. A central axis 215 is fixedly arranged in the swing cavity 214. A swing rod 216 is rotatably connected to the central axis 215. The two ends of the swing rod 216 are respectively hinged to the driving block 32 and the driven block 41.

[0033] Furthermore, as Figures 1-5As shown in the figure, the upper connecting plate 11 is provided with a locking groove 51, the locking groove 51 corresponds to the driven part 4, clamping grooves 52 are arranged on both sides of the locking groove 51, the clamping grooves 52 correspond to the clamping blocks 42, the locking groove 51 and the clamping grooves 52 form a locking part 5, the connection between the clamping groove 52 and the side wall of the locking groove 51 is rounded, the extrusion block is arranged in a "concave" shape, and the extrusion block is used to extrude the upper connecting plate 11 and the lower connecting plate 21. The lower connecting plate 21 is provided with a first sliding groove 217, the extrusion plate 211 is provided with a first sliding block 2111, both the first sliding block 2111 and the first sliding groove 217 are arranged in a "T" shape, the first sliding block 2111 is embedded in the first sliding groove 217, the lower connecting plate 21 is rotatably connected with a bolt 22, the extrusion plate 211 is threadedly connected with the bolt 22, the bolt 22 penetrates through the extrusion plate 211, the upper connecting plate 11 is provided with a notch 111 for the driving part 3 to slide, and the movement track of the extrusion plate 211 intersects with the inclined surface 33 of the driving part 3.

[0034] Its working principle is as follows: When installing and disassembling the upper and lower shells 2, rotate the bolt 22. The rotation of the bolt 22 drives the extrusion plate 211 to slide on the lower connecting plate 21. The inner side of the extrusion plate 211 tightly squeezes the upper connecting plate 11 and the lower connecting plate 21 together. At the same time, the extrusion plate 211 contacts the inclined surface 33 of the driving part 3. The inclined surface 33 is extruded to drive the driving block 32 to move up and down. The first elastic member 31 can make the driving part 3 reset. The swing rod 216 rotates to drive the driven part 4 to move up and down. The driven block 41 is inserted into and withdrawn from the locking groove 51. At the clamping groove 52, the second elastic member 43 pushes the clamping member into the clamping groove 52. At the same time, when the driven block 41 moves down, the clamping block 42 and the clamping groove 52 can smoothly slide out through the rounded corner setting, realizing the locking and disconnection of the driven part 4 and the locking part 5.

Claims

1. A differential, comprising an upper housing (1) and a lower housing (2), characterized in that: An upper connecting plate (11) and a lower connecting plate (21) are respectively arranged on both sides of the upper shell (1) and the lower shell (2); the lower connecting plate (21) is slidably provided with a driving part (3) and a driven part (4); an elastic member is connected between the driving part (3) and the lower connecting plate (21); the upper connecting plate (11) is provided with a locking part (5) corresponding to the driven part (4); the driving part (3) and the driven part (4) are linked; the lower connecting plate (21) is slidably provided with an extrusion plate (211); the extrusion plate (211) is in a "concave" shape; the upper connecting plate (11) is provided with a notch (111) for the driving part (3) to slide; the extrusion plate (211) is used to fix the upper and lower connecting plates (21); the lower shell (2) is rotatably connected with a bolt (22); the bolt (22) is threadedly connected to the extrusion plate (211); the movement trajectory of the extrusion plate (211) intersects with the driving part (3).

2. A differential according to claim 1, characterized in that: The lower connecting plate (21) is provided with a driving groove (212); the driving portion (3) comprises a driving block (32) and an inclined surface (33) arranged above the driving block (32); the driving block (32) is slidably connected to the driving groove (212); and a first elastic member (31) is connected between the driving block (32) and the lower housing (2).

3. A differential according to claim 2, characterized in that: The lower connecting plate (21) is provided with a driven groove (213), the driven part (4) comprises a driven block (41), and clamping blocks (42) slidably connected to both sides of the driven block (41), a second elastic member (43) is connected between the clamping block (42) and the driven block (41), and the end of the clamping block (42) is rounded.

4. A differential according to claim 3, characterized in that: The first elastic member (31) and the second elastic member (43) are both springs.

5. A differential according to claim 4, characterized in that: The locking portion (5) comprises a locking groove (51) and a clamping groove (52), wherein the clamping groove (52) corresponds to the clamping block (42), and the connection between the clamping groove (52) and the locking groove (51) is rounded.

6. A differential according to claim 5, characterized in that: The lower connecting plate (21) is provided with a swing cavity (214), and two ends of the swing cavity (214) are respectively connected to the driving groove (212) and the driven groove (213). A central shaft (215) is fixedly arranged in the swing cavity (214), and the central shaft (215) is rotatably connected to a swing rod (216). Two ends of the swing rod (216) are respectively hinged to the driving block (32) and the driven block (41).

7. A differential according to claim 6, characterized in that: The squeezing plate (211) is protrudingly provided with a first sliding block (2111), and the lower connecting plate (21) is provided with a first sliding groove (217) for the first sliding block (2111) to slide.

8. A differential according to claim 7, characterized in that: The first sliding block (2111) is embedded in the first sliding groove (217), and the first sliding block (2111) and the first sliding groove (217) are both arranged in a "T-shape".

9. A differential according to claim 8, characterized in that: The driving block (32) is protrudingly provided with a second sliding block (321), the driving groove (212) is provided with a second sliding groove (2121), and the top of the second sliding groove (2121) is lower than the top of the first connecting plate.

10. A differential according to claim 9, characterized in that: The driven block (41) is provided with a third sliding block (411) protruding therefrom, the driven groove (213) is provided with a third sliding groove (2131), and the top end of the third sliding groove (2131) is lower than the top end of the first connecting plate.

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