Vehicle differential mechanism

Abstract

The utility model provides a vehicle differential which comprises an outer shell with an inner cavity, a gear assembly arranged on the outer shell, a connecting pipe arranged on the outer shell and communicated with the inner cavity of the outer shell, a first sealing cover arranged on the connecting pipe and a filtering shell body arranged on the outer shell and provided with a filtering cavity. And the second sealing cover is arranged at the upper part of the filtering shell and is used for blocking the filtering cavity. Impurities in oil liquid are filtered through the filtering piece, the impurities are stored in the filtering piece, the oil liquid enters the lower portion of the filtering cavity and flows into the inner cavity of the shell again from the communicating hole, when the oil liquid passes through the communicating hole, the oil liquid needs to pass through the filtering net, and therefore secondary filtering is achieved, and the impurities which are not filtered through the filtering piece are filtered out through the filtering piece. The oil is filtered by the filter screen, and impurities filtered by the filter screen can be deposited at the lower part of the filter cavity, so that the oil is repeatedly circulated, and the impurities in the oil are fully filtered.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle differentials, and in particular to a vehicle differential. Background Technology

[0002] A car differential is a mechanism that allows the left and right (or front and rear) drive wheels to rotate at different speeds. It mainly consists of left and right half-shaft gears, two planetary gears, and a gear carrier. Its function is to ensure that the left and right wheels rotate at different speeds when the car is turning or driving on uneven surfaces, thus guaranteeing pure rolling motion for both drive wheels. The differential is designed to adjust the speed difference between the left and right wheels. In four-wheel drive, all four wheels must be connected to drive them. If the four wheels are mechanically connected, the car will not rotate at the same speed when driving on curves. To ensure that the rotational speed is approximately consistent when the car is turning, a center differential is needed to adjust the speed difference between the front and rear wheels.

[0003] However, the differential oil in the differential may sometimes contain impurities. If these impurities are not removed in time, they will significantly affect the performance and lifespan of the differential. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a vehicle differential that can easily and thoroughly remove impurities from the differential oil.

[0005] This utility model provides the following technical solution: a vehicle differential, comprising a housing with an inner cavity, a gear assembly disposed on the housing, a connecting pipe disposed on the housing and communicating with the inner cavity of the housing, a first sealing cover disposed on the connecting pipe, a filter housing disposed on the housing with a filter cavity, a second sealing cover disposed on the upper part of the filter housing for sealing the filter cavity, a support member disposed on the upper part of the filter cavity of the filter housing, a filter element disposed on the support member, a connecting hole forming a connection between the inner cavity of the housing and the filter cavity of the filter housing, and a filter assembly disposed at the lower part of the filter housing; the filter assembly includes a third sealing cover disposed at the lower part of the filter housing for sealing the filter cavity, a filter screen disposed at the connecting hole, and a blocking component for blocking the connecting hole.

[0006] Furthermore, the filter element includes a filter frame with a bottom wall and side walls, and a protruding edge is provided on the side wall of the filter frame, with the support member contacting the protruding edge.

[0007] Furthermore, the filter frame extends inward to form a protrusion.

[0008] Furthermore, the filter housing has a funnel-shaped component that is larger at the top and smaller at the bottom inside the filter cavity. The funnel-shaped component is located below the connecting hole, and there is a receiving space between the funnel-shaped component and the lower part of the filter cavity.

[0009] Furthermore, the blocking assembly includes a guide rod disposed on the housing, a blocking element slidably connected to the guide rod, and a drive unit for driving the blocking element to move.

[0010] Furthermore, the drive unit includes a threaded sleeve disposed on the filter screen, a bolt threadedly connected to the threaded sleeve, one end of the bolt being rotatably connected to the blockage component, and the other end protruding from the side wall of the filter housing.

[0011] Furthermore, the plugging component includes a plugging block that is slidably connected to the guide rod, and a sealing block disposed on the side of the plugging block near the connecting hole. The size of the plugging block is larger than that of the connecting hole, and the size of the sealing block is the same as that of the connecting hole.

[0012] The beneficial effects of this utility model are as follows: Impurities in the oil are filtered through the filter element, which stores them within the filter element. The oil then enters the lower part of the filter chamber and flows back into the inner cavity of the outer shell through the connecting hole. As the oil passes through the connecting hole, it passes through a filter screen, thus achieving secondary filtration. Impurities not filtered by the filter element are filtered through the filter screen, while those filtered out by the screen are deposited in the lower part of the filter chamber. This allows the oil to circulate repeatedly, thoroughly filtering out impurities. Furthermore, some impurities intercepted by the filter screen settle downwards through the funnel element and flow into the receiving space below the funnel element. Because of the funnel element, impurities flowing into the receiving space are less likely to move upwards, thus achieving a better filtration effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the interior of the outer shell of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the filter housing and the first sealing cap of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the internal structure of the filter housing of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram showing the separation of the second sealing cover, support member, and filter member of this utility model.

[0018] Figure 6 This is a three-dimensional structural diagram of the blocking component of this utility model.

[0019] The labels in the attached diagram are as follows: 1-outer shell, 2-inner cavity, 3-drive shaft, 4-drive gear, 5-transmission gear, 6-first side shaft, 7-first side gear, 8-bracket, 9-planetary gear, 10-second side shaft, 11-second side gear, 12-connecting pipe, 13-first sealing cover, 14-filter housing, 141-filter chamber, 15-second sealing cover, 16-support component, 17-filter component, 171-protruding edge, 172-protrusion, 173-filter frame, 18-funnel component, 19-third sealing cover, 20-blocking assembly, 201-guide rod, 202-blocking block, 203-bolt, 204-connecting hole, 205-threaded sleeve, 206-sealing block, 21-filter screen. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] A vehicle differential, such as Figures 1-4As shown, the device includes an outer shell 1 having an inner cavity 2, a gear assembly disposed on the outer shell 1, a connecting pipe 12 disposed on the outer shell 1 communicating with the inner cavity 2 of the outer shell 1, a first sealing cap 13 disposed on the connecting pipe 12, a filter housing 14 disposed on the outer shell 1 having a filter cavity 141, a second sealing cap 15 disposed on the upper part of the filter housing 14 for sealing the filter cavity 141, a support member 16 disposed on the upper part of the filter cavity 141 of the filter housing 14, a filter member 17 disposed on the support member 16, a connecting hole 204 forming a connection between the inner cavity 2 of the outer shell 1 and the filter cavity 141 of the filter housing 14, and a filter assembly disposed at the lower part of the filter housing 14; the filter assembly includes a third sealing cap 19 disposed at the lower part of the filter housing 14 for sealing the filter cavity 141, a filter screen 21 disposed at the connecting hole 204, and a blocking component 20 for blocking the connecting hole 204.

[0024] The inner cavity 2 of the outer casing 1 contains differential oil, which is used to provide lubrication for the transmission between gear assemblies, such as... Figure 5 As shown, the filter element 17 includes a filter frame 173 with a bottom wall and side walls. A protruding edge 171 is provided on the side wall of the filter frame 173. The support member 16 contacts the protruding edge 171. The filter frame 173 extends inward to form a protrusion 172, which facilitates the removal of the filter element 17 from the support member 16. Figure 2 As shown, the gear assembly includes a drive shaft 3 rotatably connected to the housing 1, the drive shaft 3 being connected to the output end of the vehicle engine, a drive gear 4 mounted on the drive shaft 3, a transmission gear 5 rotatably connected to the inner cavity 2 of the housing 1, the drive gear 4 meshing with the transmission gear 5, a first side shaft 6 rotatably connected to the housing 1, the first side shaft 6 being connected to the drive shaft of the vehicle wheel, a first side gear 7 mounted on the first side shaft 6, a second side shaft 10 rotatably connected to the housing 1, the second side shaft 10 being connected to the drive shaft of the other wheel of the vehicle, a second side gear 11 mounted on the second side shaft 10, and two sets of planetary gear 9 assemblies mounted on the transmission gear 5. Each planetary gear 9 assembly includes a bracket 8 fixedly connected to the transmission gear 5, and planetary gears 9 rotatably connected to the bracket 8, the planetary gears 9 meshing with the first side gear 7 and the second side gear 11.

[0025] It is understandable that when it is necessary to remove impurities from the differential oil in the inner cavity 2 of the housing 1, the operator can remove the first sealing cover 13 from the connecting pipe 12. Preferably, the first sealing cover 13 is threadedly connected to the connecting pipe 12. Then, the operator removes the second sealing cover 15 from the filter housing 14. Preferably, the second sealing cover 15 is threadedly connected to the filter housing 14. Then, the operator takes out an oil pump, inserts the oil pump's inlet pipe from the connecting pipe 12 into the inner cavity 2 of the housing 1, and connects the oil pump's outlet pipe to the filter housing 14. That is, the oil pump's outlet pipe is located in the... At the position where the filter housing 14 connects to the second sealing cover 15, the operator can start the oil pump. The oil pump draws the oil from the inner cavity 2 of the housing 1 and enters the filter chamber 141 through the oil outlet pipe. When the oil enters the filter chamber 141 from the oil outlet pipe, it first passes through the filter element 17, which filters out impurities in the oil. The impurities are stored in the filter element 17. The oil then enters the lower part of the filter chamber 141 and flows back into the inner cavity 2 of the housing 1 through the connecting hole 204. When the oil passes through the connecting hole 204, it needs to pass through the filter screen 21, thus achieving secondary filtration. Impurities not filtered by filter element 17 are filtered through filter screen 21, and the impurities filtered by filter screen 21 will be deposited in the lower part of filter chamber 141, thereby causing the oil to circulate repeatedly and thoroughly filter the impurities in the oil. After filtration, the operator can remove the oil pump inlet pipe and oil outlet pipe from the inner cavity 2 and filter chamber 141 respectively. Then, the operator can reinstall the first sealing cover 13 onto the connecting pipe 12. Then, the operator can remove filter element 17 from support member 16 and clean the impurities inside filter element 17. After cleaning the filter element 17... After removing impurities, the filter element 17 is placed back on the support element 16, and then the second sealing cover 15 is installed back. Then, the operator can operate the blocking component 20 to block the connecting hole 204 to prevent the oil in the inner cavity 2 from flowing into the filter cavity 141. Then, the operator removes the third sealing cover 19 from the filter housing 14. At this time, the impurities filtered by the filter screen 21 will be discharged from the bottom of the filter housing 14 to the outside. After removing the impurities, the operator can reinstall the third sealing cover 19. Preferably, the third sealing cover 19 is threadedly connected to the filter housing 14.

[0026] like Figure 4 As shown, a funnel-shaped component 18, which is larger at the top and smaller at the bottom, is provided in the filter cavity 141 of the filter housing 14. The funnel-shaped component 18 is located below the connecting hole 204, and there is a receiving space between the funnel-shaped component 18 and the lower part of the filter cavity 141.

[0027] It is understandable that when filtering impurities from the oil, the filter screen 21 achieves secondary filtration. Some of the impurities intercepted by the filter screen 21 will settle down and pass through the funnel 18, flowing into the receiving space below the funnel 18. Because the funnel 18 is set, the impurities flowing into the receiving space are not easy to move upwards from the funnel 18, thus achieving a better filtration effect.

[0028] like Figure 6 As shown, the clogging assembly 20 includes a guide rod 201 disposed on the housing 1, a clogging component slidably connected to the guide rod 201, and a drive unit for driving the clogging component to move; the drive unit includes a threaded sleeve 205 disposed on the filter screen 21, and a bolt 203 threadedly connected to the threaded sleeve 205, one end of the bolt 203 being rotatably connected to the clogging component, and the other end protruding from the side wall of the filter housing 14.

[0029] It is understandable that when the operator needs to operate the blocking component 20 to block the connecting hole 204, the operator can rotate the bolt 203. The rotation of the bolt 203 will drive the blocking component to move closer to the connecting hole, and eventually the blocking component will block the connecting hole 204, thereby cutting off the connection between the inner cavity 2 and the filter cavity 141, and preventing the oil without impurities from flowing out of the inner cavity 2 when the third sealing cover 19 is opened. When the blocking component is not needed to block the connecting hole, the operator can simply rotate the bolt 203 in the opposite direction.

[0030] The plugging component includes a plugging block 202 that is slidably connected to the guide rod 201, and a sealing block 206 disposed on the side of the plugging block 202 near the connecting hole 204. The size of the plugging block 202 is larger than that of the connecting hole 204, and the size of the sealing block 206 is the same as that of the connecting hole 204.

[0031] It is understandable that when the bolt 203 drives the plugging component to block the connecting hole 204, the plugging block 202 will cover the connecting hole 204, and the sealing block 206 will be located inside the connecting hole 204, thereby achieving sufficient sealing and blocking, and preventing the oil in the inner cavity 2 from flowing into the filter cavity 141.

[0032] In summary, the filter element 17 filters impurities in the oil, which are then stored within the filter element 17. The oil enters the lower part of the filter chamber 141 and flows back into the inner cavity 2 of the outer shell 1 through the connecting hole 204. When the oil passes through the connecting hole 204, it needs to pass through the filter screen 21, thus achieving secondary filtration. Impurities not filtered by the filter element 17 are filtered by the filter screen 21, and the impurities filtered by the filter screen 21 are deposited in the lower part of the filter chamber 141, thereby allowing the oil to circulate repeatedly and fully filter the impurities in the oil. In addition, some of the impurities intercepted by the filter screen 21 will settle downwards through the funnel element 18 and flow into the receiving space below the funnel element 18. Because the funnel element 18 is provided, the impurities flowing into the receiving space are less likely to move upwards from the funnel element 18, thus achieving a better filtration effect.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vehicle differential, characterized in that, The device includes a housing with an inner cavity, a gear assembly disposed on the housing, a connecting pipe disposed on the housing and communicating with the inner cavity of the housing, a first sealing cap disposed on the connecting pipe, a filter housing disposed on the housing with a filter cavity, a second sealing cap disposed on the upper part of the filter housing for sealing the filter cavity, a support member disposed on the upper part of the filter cavity of the filter housing, a filter element disposed on the support member, a connecting hole formed to connect the inner cavity of the housing and the filter cavity of the filter housing, and a filter assembly disposed at the lower part of the filter housing; the filter assembly includes a third sealing cap disposed at the lower part of the filter housing for sealing the filter cavity, a filter screen disposed at the connecting hole, and a blocking assembly for blocking the connecting hole.

2. The vehicle differential according to claim 1, characterized in that, The filter element includes a filter frame with a bottom wall and side walls, and a protruding edge is provided on the side wall of the filter frame. The support member contacts the protruding edge.

3. The vehicle differential according to claim 2, characterized in that, The filter frame extends inward to form a protrusion.

4. The vehicle differential according to claim 1, characterized in that, The filter housing has a funnel-shaped component that is larger at the top and smaller at the bottom inside the filter cavity. The funnel-shaped component is located below the connecting hole, and there is a receiving space between the funnel-shaped component and the lower part of the filter cavity.

5. The vehicle differential according to claim 4, characterized in that, The blocking assembly includes a guide rod disposed on the housing, a blocking element slidably connected to the guide rod, and a drive unit for moving the blocking element.

6. The vehicle differential according to claim 5, characterized in that, The drive unit includes a threaded sleeve disposed on the filter screen, and a bolt threadedly connected to the threaded sleeve. One end of the bolt is rotatably connected to the blockage component, and the other end protrudes from the side wall of the filter housing.

7. The vehicle differential according to claim 6, characterized in that, The plugging component includes a plugging block that is slidably connected to the guide rod, and a sealing block disposed on the side of the plugging block near the connecting hole. The size of the plugging block is larger than that of the connecting hole, and the size of the sealing block is the same as that of the connecting hole.

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