Automobile steering gear box bearing dismounting device

Abstract

The utility model provides an automobile steering gear box bearing dismounting device which comprises a lower supporting part, an upper supporting part and a driving assembly, the lower supporting part is used for being fixedly connected with a steering gear box, a sliding groove is formed in the lower supporting part, and a connecting mechanism is installed in the sliding groove in a sliding mode; the upper supporting part is fixedly connected with a connecting part; a positioning hole for positioning the upper supporting part after being matched with the connecting part is formed in the lower supporting part; a limiting groove is formed in the connecting part, a driving assembly is rotationally installed on the upper supporting part, and a limiting area used for installing a bearing is formed between the upper supporting part and the lower supporting part; the driving assembly is installed on the upper supporting part, and an installation hole is formed in the lower supporting part and communicates with the sliding groove. According to the utility model, the problem that in the prior art, when a bearing which is worn due to long-time use is replaced, the bearing can be replaced only after the shell of the commutator is taken down and internal parts are disassembled can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gears, in particular to a disassembly device for a bearing of an automobile steering gear. Background Art

[0002] The steering gear is a device that can change the route and direction of a manned or unmanned vehicle randomly during operation. The steering gear is also called a steering machine or a steering gear. It is the most important part of the steering system. Its function is to increase the force transmitted from the steering wheel to the steering transmission mechanism and change the direction of force transmission. Under normal circumstances, only a small part of the energy required for steering a car with a power steering system is the physical energy provided by the driver, while most of it is the hydraulic energy provided by the oil pump driven by the engine.

[0003] The fixing structure between the shell structures of some existing steering gear reducers is relatively complicated, which will cause the staff to spend more time to disassemble the shell of the steering gear reducer when maintenance is required; in order to solve the problems existing in the prior art, the utility model with publication number CN220518384U discloses a steering gear reducer (hereinafter referred to as: prior art 1), including a main unit and a base plate, the upper surface of the base plate is fixedly connected to the reducer body, and the front surface of the reducer body is fixedly connected to a connecting frame; a disassembly unit, which includes a connecting frame arranged on the front surface of the connecting frame, the front surface of the connecting frame is rotatably connected to a plurality of screws that are threadedly connected to the connecting frame, the right outer surface of the connecting frame is slidably connected to a limiting plate, the outer surface of the limiting plate away from the connecting frame is fixedly connected to a push plate, the outer surface of the push plate close to the connecting frame is fixedly connected to a plurality of slides, the outer surface of the screw is fixedly connected to a gear, and the outer surface of the slide close to the screw is fixedly connected to a plurality of teeth that mesh with the slide.

[0004] In the prior art 1, when a bearing worn out due to long-term use needs to be replaced, the commutator housing needs to be removed first, and then the internal components need to be disassembled before the bearing can be removed; the difficulty of disassembling the bearing is increased, which affects the speed of bearing replacement. Utility Model Content

[0005] The utility model aims to provide a vehicle steering gear bearing disassembly device, which can solve the problem in the prior art that when replacing a bearing that has been worn out due to long-term use, the commutator housing needs to be removed first and the internal components need to be disassembled before the bearing can be replaced.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A vehicle steering gear bearing disassembly device comprises a lower support part, an upper support part and a driving assembly, wherein the lower support part is used for fixed connection with the steering gear, a slide groove is arranged in the lower support part, and a connecting mechanism is slidably installed in the slide groove;

[0008] The upper support part is fixedly connected with a connecting part; the lower support part is provided with a positioning hole for positioning the upper support part after being matched with the connecting part; a limiting groove is provided on the connecting part, a driving assembly is rotatably installed on the upper support part, and a limiting area for installing a bearing is formed between the upper support part and the lower support part;

[0009] The driving assembly is installed on the upper support part, and a mounting hole is provided on the lower support part, and the mounting hole is connected with the slide groove; the driving assembly is used to drive the connecting mechanism to move to cooperate with the limiting groove to fix the upper support part.

[0010] Preferably, the connecting mechanism includes a connecting pin and a first spring, the connecting pin is slidably installed in the sliding groove, a connecting platform is fixedly connected to the connecting pin, and the connecting platform and the lower support part are connected through the first spring.

[0011] Preferably, the driving assembly includes a first driving part and a first rotating part, and the first driving part is provided with a first clearance groove on the front and rear sides; the first driving part is rotatably mounted on the upper support part, the top end of the first driving part is fixedly connected to the first rotating part, and the bottom end of the first driving part extends through the upper support part into the mounting hole and is used to drive the connecting pin to move horizontally in the direction of the limiting groove and then fix the upper support part into the limiting groove.

[0012] Preferably, first clamping grooves are provided on the left and right sides of the first driving part, and the first clamping grooves are used to limit the connecting pin after contacting the connecting pin.

[0013] Preferably, the driving assembly includes a second driving part and a second rotating part, the second driving part is provided with second give way grooves on the front and rear sides, and the second driving part is provided with second clamping grooves on the left and right sides; a through hole is provided on the upper support part, the top end of the second driving part is fixedly connected to the second rotating part, the second driving part extends into the mounting hole through the through hole and is used to drive the connecting pin to move horizontally in the direction of the limiting groove and then fix the upper support part into the limiting groove; a threaded groove is provided in the mounting hole, and the bottom end of the second driving part is detachably connected to the mounting hole through the threaded groove.

[0014] Preferably, a bearing is rotatably mounted on the upper support portion, a second spring is connected to the surface of the bearing, and the second rotating portion is connected to the bearing via the second spring.

[0015] Preferably, a clamping block is connected to the second driving part, and a slot is provided on the upper supporting part, the slot is communicated with the through hole, and the clamping block is slidably installed in the slot and is used to limit the second driving part.

[0016] Preferably, a guiding inclined surface is provided on a side of the limiting groove close to the connecting pin.

[0017] Preferably, a ball cavity is provided on one side of the connecting pin close to the driving assembly, and a ball is rollingly connected in the ball cavity.

[0018] Preferably, a sealing gasket is fixedly connected to a surface of the lower supporting portion that is used for contacting the upper supporting portion.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In the present invention, the connecting part is aligned with the positioning hole provided on the lower supporting part and then the connecting part enters into the positioning hole. The connecting part guides the upper supporting part in the process of entering into the positioning hole.

[0021] After the connecting part enters the positioning hole, the limiting groove arranged on the connecting part is aligned with the slide groove, and the driving part rotatably installed on the upper support plate can drive the connecting mechanism slidably installed in the slide groove to move toward the direction of the limiting groove and enter the limiting groove after rotating; the upper support part can be connected with the lower support part by the connecting mechanism entering the limiting groove, and the upper support part can be fixed and limited after the connecting mechanism cooperates with the limiting groove;

[0022] When it is necessary to remove the bearing installed in the limiting area formed between the upper support part and the lower support part, it is only necessary to rotate the driving assembly so that the connecting mechanism moves in the direction away from the limiting groove to the outside of the limiting groove, and then the upper support part can be removed from the lower support part, and the bearing installed in the limiting area can be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional diagram of the utility model.

[0025] Figure 2 It is a schematic diagram of the connection relationship between the upper supporting part and the lower supporting part in the utility model.

[0026] Figure 3 It is a stereoscopic diagram of the connecting pin in the utility model.

[0027] Figure 4 For this utility model Figure 2 A partial enlarged view of point A in the middle.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 101-lower support part, 102-upper support part, 103-driving assembly, 104-slide groove, 105-connecting mechanism, 106-connecting part, 107-positioning hole, 108-limiting groove, 109-steering machine body, 110-mounting hole, 111-connecting pin, 112-first spring, 113-connecting platform, 114-first driving part, 115-first rotating part, 116-first giving way groove, 117-first clamping groove, 118-second driving part, 119-second rotating part, 120-second clamping groove, 121-second giving way groove, 122-guide inclined surface, 123-thread groove, 124-bearing, 125-second spring, 126-block. DETAILED DESCRIPTION

[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0034] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0036] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0037] Embodiment 1

[0038] See also Figure 1-Figure 4 This embodiment discloses a vehicle steering gear bearing disassembly device, comprising a lower support portion 101, an upper support portion 102 and a drive assembly 103, wherein the lower support portion 101 is used for fixedly connecting with the steering gear, a slide groove 104 is provided in the lower support portion 101, and a connecting mechanism 105 is slidably installed in the slide groove 104;

[0039] The upper support part 102 is fixedly connected with a connecting part 106; the lower support part 101 is provided with a positioning hole 107 for positioning the upper support part 102 after being matched with the connecting part 106; the connecting part 106 is provided with a limiting groove 108, and the driving assembly 103 is rotatably installed on the upper support part 102, and a limiting area for installing a bearing 124 is formed between the upper support part 102 and the lower support part 101;

[0040] The driving assembly 103 is installed on the upper support part 102, and a mounting hole 110 is provided on the lower support part 101, and the mounting hole 110 is connected to the slide groove 104; the driving assembly 103 is used to drive the connecting mechanism 105 to move to cooperate with the limiting groove 108 to fix the upper support part 102.

[0041] In the present invention, the positioning hole 107 is connected to the mounting hole 110 through the slide groove 104, and the center line of the slide groove 104 is perpendicular to the center lines of the positioning hole 107 and the mounting hole 110; when it is necessary to connect the upper support part 102 with the lower support part 101, so as to limit and fix the bearing 124 installed in the limiting area formed between the upper support part 102 and the lower support part 101; after aligning the connecting part 106 with the positioning hole 107 set on the lower support part 101, the connecting part 106 is allowed to enter the positioning hole 107, and the connecting part 106 guides the upper support part 102 in the process of entering the positioning hole 107; after the connecting part 106 enters the positioning hole 107, the limiting groove 108 set on the connecting part 106 is aligned with the slide groove 104, and the upper support part 102 is rotated by the bearing 124. After the driving component 103 installed on the upper support plate rotates, it can drive the connecting mechanism 105 slidably installed in the slide groove 104 to move toward the direction of the limiting groove 108 and enter the limiting groove 108; after the connecting mechanism 105 enters the limiting groove 108, the upper support part 102 can be connected with the lower support part 101, and the connecting mechanism 105 can fix and limit the upper support part 102 after cooperating with the limiting groove 108; when it is necessary to take out the bearing 124 installed in the limiting area formed between the upper support part 102 and the lower support part 101, it is only necessary to rotate the driving component 103 so that the connecting mechanism 105 moves in the direction away from the limiting groove 108 to the outside of the limiting groove 108, and then the upper support part 102 can be removed from the lower support part 101, and the bearing 124 installed in the limiting area can be taken out.

[0042] The connection mechanism 105 includes a connection pin 111 and a first spring 112. The connection pin 111 is slidably installed in the slide slot 104. A connection platform 113 is fixedly connected to the connection pin 111. The connection platform 113 is connected to the lower support portion 101 through the first spring 112. After the driving unit rotates, it can drive the connection mechanism 105 slidably installed in the slide slot 104 to move toward the limit slot 108 and enter the limit slot 108. The first spring 112 connecting the lower support portion 101 and the connection platform 113 is compressed. After the connection pin 111 enters the limit slot 108, the upper support portion 102 is connected to the lower support portion 101. After the connection pin 111 cooperates with the limit slot 108, the upper support portion 102 can be fixed and limited.

[0043] Further optimized, the driving assembly 103 includes a first driving part 114 and a first rotating part 115, the front and rear sides of the first driving part 114 are provided with first yielding grooves 116, and the left and right sides of the first driving part 114 are provided with limiting grooves 108; the first driving part 114 is rotatably installed on the upper support part 102, the top end of the first driving part 114 is fixedly connected to the first rotating part 115, and the bottom end of the first driving part 114 extends through the upper support part 102 into the mounting hole 110 and is used to drive the connecting pin 111 to move horizontally in the direction of the limiting groove 108 to fix the upper support part 102 into the limiting groove 108. When it is necessary to make the first driving part 114 enter the mounting hole 110, the first driving part 114 is first rotated to move the limiting groove 108 to a position corresponding to the connecting pin 111. During the process of the first driving part 114 moving vertically downward into the mounting hole 110, the connecting pin 111 slidably cooperates with the limiting groove 108 and guides the first driving part 114. After the bottom surface of the upper support part 102 contacts the lower support part 101, the center line of the limiting groove 108 arranged on the first driving part 114 is aligned with the slide groove 104. At this time, the first driving part 114 is rotated to make the connecting pin 111 move to the outside of the first giving groove 116 along with the rotation of the first driving part 114 and contact the outer surface of the first driving part 114. Driven by the first driving part 114, the connecting pin 111 moves toward the direction of the limiting groove 108 and enters the limiting groove 108. After the limiting groove 108 contacts the connecting pin 111, the connecting pin 111 is limited.

[0044] The first drive part 114 is provided with first slots 117 on both sides, and the first slots 117 are used to limit the connection pin 111 after contacting with the connection pin 111. After the bottom surface of the upper support part 102 contacts with the lower support part 101, the center line of the limit slot 108 provided on the first drive part 114 is aligned with the slide slot 104. At this time, the first drive part 114 is rotated so that the first slot 117 moves to contact with the connection pin 111. The depth of the first slot 117 is less than the depth of the first clearance slot 116, so that the connection pin 111 can move toward the limit slot 108 and enter the limit slot 108 under the drive of the first drive part 114. After the limit slot 108 contacts with the connection pin 111, the connection pin 111 is limited to prevent the first drive part 114 from rotating under the action of external force.

[0045] Embodiment 2

[0046] See also Figure 1-Figure 4 This embodiment is further optimized on the basis of the first embodiment. In the utility model, the driving assembly 103 includes a second driving part 118 and a second rotating part 119. The second driving part 118 is provided with a second yielding groove 121 on the front and rear sides, and the second driving part 118 is provided with a second clamping groove 120 on the left and right sides; a through hole is provided on the upper support part 102, the top of the second driving part 118 is fixedly connected with the second rotating part 119, the second driving part 118 extends into the mounting hole 110 through the through hole and is used to drive the connecting pin 111 to move horizontally toward the direction of the limiting groove 108 to the limiting groove 108 and then fix the upper support part 102; a threaded groove 123 is provided in the mounting hole 110, and the bottom end of the second driving part 118 is detachably connected with the mounting hole 110 through the threaded groove 123. In the process of the second driving part 118 moving vertically downward into the mounting hole 110, the connecting pin 111 slides with the limiting groove 108 and guides the second driving part 118. After the second driving part 118 enters the mounting hole 110, the second driving part 118 is rotated so that the second driving part 118 is threadedly connected with the lower support part 101 through the thread groove 123. After the second driving part 118 is rotated and connected with the thread groove 123, the second card slot set on the second driving part 118 120 moves to contact with the connecting pin 111. In the present embodiment, a clearance is provided between the connecting pin 111 and the limiting groove 108. The depth of the second slot 120 is less than that of the limiting groove 108, so that the connecting pin 111 can move toward the limiting groove 108 and enter the limiting groove 108 under the drive of the second driving part 118. After the limiting groove 108 contacts with the connecting pin 111, the connecting pin 111 is limited to prevent the second driving part 118 from rotating under the action of external force.

[0047] Among them, a bearing 124 is rotatably mounted on the upper support part 102, and a second spring 125 is connected to the surface of the bearing 124, and the second rotating part 119 is connected to the bearing 124 through the second spring 125. In the process of rotating the second driving part 118 so that the second driving part 118 is threadedly connected to the lower support part 101 through the thread groove 123, the second driving part 118 moves downward, and the spring connecting the second rotating part 119 and the upper support part 102 is compressed. Under the action of the second spring 125, the second driving part 118 can be further fixed, and after the second rotating part 119 is connected to the upper support part 102 through the second spring 125, the second driving part 118 can be prevented from falling off from the through hole due to improper operation during installation.

[0048] Further optimized, a clamping block 126 is connected to the second driving part 118 , a slot is provided on the upper supporting part 102 , the slot is connected to the through hole, the clamping block 126 is slidably installed in the slot and is used to limit the second driving part 118 .

[0049] The second driving part 118 is connected with a block 126, and the upper support part 102 is provided with a slot, which is connected with the through hole, and the block 126 is slidably installed in the slot and is used to limit the second driving part 118. In the process of the second driving part 118 moving vertically downward into the mounting hole 110, the block 126 is slidably matched with the slot provided on the upper branch, and after the upper support part 102 contacts the lower support part 101, the block 126 moves outside the slot and is located below the upper support part 102. In the process of rotating the second driving part 118 so that the second driving part 118 is threadedly connected with the lower support part 101 through the thread groove 123, the block 126 moves to contact with the bottom surface of the lower support part 101 to further limit the connection pin 111.

[0050] Further optimized, a guide slope 122 is provided on one side of the limiting groove 108 close to the connecting pin 111. The guide slope 122 is used to guide the connecting pin 111 moving toward the limiting groove 108.

[0051] A ball cavity is provided on one side of the connecting pin 111 close to the driving assembly 103, and a ball is connected and rolled in the ball cavity. The ball can prevent the connecting pin 111 from scratching the driving assembly 103 during the horizontal movement driven by the rotating driving assembly 103.

[0052] In a further optimization, a sealing gasket is fixedly connected to a surface of the lower support portion 101 that is used to contact the upper support portion 102. The sealing gasket is made of rubber material and is used to seal the gap between the upper support portion 102 and the lower support portion 101.

[0053] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle steering gear bearing disassembly device, characterized in that: It comprises a lower support part (101), an upper support part (102) and a driving assembly (103); the lower support part (101) is used for fixed connection with the steering gear; a slide groove (104) is provided in the lower support part (101); a connecting mechanism (105) is slidably installed in the slide groove (104); The upper support portion (102) is fixedly connected to a connecting portion (106); the lower support portion (101) is provided with a positioning hole (107) for positioning the upper support portion (102) after being matched with the connecting portion (106); the connecting portion (106) is provided with a limiting groove (108); a driving assembly (103) is rotatably mounted on the upper support portion (102); and a limiting area for mounting a bearing (124) is formed between the upper support portion (102) and the lower support portion (101); The drive assembly (103) is mounted on the upper support portion (102); a mounting hole (110) is provided on the lower support portion (101); the mounting hole (110) is communicated with the slide groove (104); the drive assembly (103) is used to drive the connection mechanism (105) to move to cooperate with the limit groove (108) to fix the upper support portion (102).

2. The automobile steering gear bearing disassembly device according to claim 1, characterized in that: The connecting mechanism (105) comprises a connecting pin (111) and a first spring (112); the connecting pin (111) is slidably mounted in the slide groove (104); a connecting platform (113) is fixedly connected to the connecting pin (111); and the connecting platform (113) is connected to the lower support portion (101) via the first spring (112).

3. The automobile steering gear bearing disassembly device according to claim 2, characterized in that: The driving assembly (103) comprises a first driving part (114) and a first rotating part (115), and first clearance grooves (116) are arranged on the front and rear sides of the first driving part (114); the first driving part (114) is rotatably mounted on the upper supporting part (102), the top end of the first driving part (114) is fixedly connected to the first rotating part (115), and the bottom end of the first driving part (114) passes through the upper supporting part (102) and extends into the mounting hole (110) and is used to drive the connecting pin (111) to move horizontally in the direction of the limiting groove (108) and then fix the upper supporting part (102) into the limiting groove (108).

4. The automobile steering gear bearing disassembly device according to claim 3 is characterized in that: First clamping grooves (117) are provided on the left and right sides of the first driving part (114), and the first clamping grooves (117) are used to limit the connection pin (111) after contacting the connection pin (111).

5. The automobile steering gear bearing disassembly device according to claim 2, characterized in that: The driving assembly (103) comprises a second driving part (118) and a second rotating part (119); second clearance grooves (121) are arranged on the front and rear sides of the second driving part (118); and second clamping grooves (120) are arranged on the left and right sides of the second driving part (118); a through hole is arranged on the upper supporting part (102); the top end of the second driving part (118) is fixedly connected to the second rotating part (119); the second driving part (118) extends into the mounting hole (110) through the through hole and is used to drive the connecting pin (111) to move horizontally in the direction of the limiting groove (108) and then fix the upper supporting part (102) into the limiting groove (108); a threaded groove (123) is arranged in the mounting hole (110); the bottom end of the second driving part (118) is detachably connected to the mounting hole (110) through the threaded groove (123).

6. The automobile steering gear bearing disassembly device according to claim 5, characterized in that: A bearing (124) is rotatably mounted on the upper support portion (102), a second spring (125) is connected to the surface of the bearing (124), and the second rotating portion (119) is connected to the bearing (124) via the second spring (125).

7. The automobile steering gear bearing disassembly device according to claim 6, characterized in that: The second driving part (118) is connected to a clamping block (126), the upper supporting part (102) is provided with a slot, the slot is connected to the through hole, and the clamping block (126) is slidably mounted in the slot and is used to limit the second driving part (118).

8. The automobile steering gear bearing disassembly device according to claim 2, characterized in that: A guiding inclined surface (122) is provided on one side of the limiting groove (108) close to the connecting pin (111).

9. The automobile steering gear bearing disassembly device according to claim 8, characterized in that: A ball cavity is provided on one side of the connecting pin (111) close to the driving assembly (103), and a ball is rollingly connected in the ball cavity.

10. The automobile steering gear bearing disassembly device according to claim 1, characterized in that: A sealing gasket is fixedly connected on a surface of the lower support portion (101) that is used to contact the upper support portion (102).

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