A tool for removing the blind hole inner bearing on the transmission

Abstract

The utility model relates to a bearing disassembly tool. In order to solve the problems that the bearing or the bearing counterbore is easily damaged when the existing bearing disassembly tool is used to disassemble the bearing, there are safety risks, or the structure is complicated and the operation is inconvenient, a tool for disassembling the bearing in the blind hole of the transmission is provided. The utility model includes a toothed bearing base plate, a bearing inner ring limiting pressure plate, a clamping nut, a screw, a support sleeve and a rotating nut; the toothed bearing base plate is a combination of a toothed plate and a first circular plate; the bearing inner ring limiting pressure plate is a combination of a second circular plate and a third circular plate; a support sleeve is arranged above the cylindrical roller bearing; the screw passes through the second mounting hole and is arranged with each first mounting hole in sequence; a clamping nut and a rotating nut are sleeved on the screw, the clamping nut contacts the upper surface of the third circular plate, and the rotating nut contacts the upper surface of the support sleeve.

Description

Technical Field

[0001] The utility model relates to a bearing disassembly tool, in particular to a tool for disassembling a bearing in a blind hole on a transmission. Background Art

[0002] As the competition in the commercial vehicle market becomes increasingly fierce, the S series transmission and AMT series transmission have the advantages of superior performance of the whole box and product reliability. The commercialization of the transmission is inseparable from a large amount of test demonstration and data accumulation. Testing is an important part of the continuous improvement and optimization of transmission products. During the test of the transmission, it is often necessary to frequently disassemble and assemble multiple key components and verify whether their various performance indicators are qualified. Therefore, how to complete the test disassembly and assembly tasks quickly, efficiently and safely while ensuring the consistency of the product is an important issue.

[0003] For S series transmission and AMT series transmission, the rear auxiliary box partition wall bearing is a cylindrical roller bearing. The retaining bracket (also called retaining bracket) of the cylindrical roller bearing is made of copper material and installed on the auxiliary box partition wall. One end of its outer ring is close to the countersunk hole of the partition wall, and the other end is flush with the partition wall. This special countersunk assembly method makes it impossible to directly complete the disassembly using existing bearing removal tools if the bearing needs to be replaced during the test. It is necessary to first disassemble the transmission main box, use the existing tool hammer to hit one end of the screwdriver or crowbar, and the other end of the screwdriver or crowbar is pushed against the bearing roller or retaining bracket. The bearing can only be removed by relying on the impact force of the hammer. However, this disassembly method often causes destructive disassembly of the bearing, damaging the bearing roller and retaining bracket. For such situations, not only unnecessary workload is added during the test process, and the test cycle is extended, but also excessive disassembly and installation cannot guarantee the consistency and reliability of the product.

[0004] During the test of S series transmission and AMT series transmission, disassembling the rear auxiliary box partition wall bearing is an inevitable and important task. At present, there are three technical problems in disassembling the rear auxiliary box partition wall bearing: first, the bearing is installed in the bearing countersunk hole of the rear auxiliary box partition wall plate of the transmission. This bearing countersunk hole is a blind hole. Without disassembling the main transmission box, such bearings cannot be directly disassembled using conventional puller tools; second, when disassembling the main transmission box, the only way is to rely on the existing tools such as hammers to hit the screwdriver or crowbar to apply force to the bearing retaining bracket and roller, so as to disassemble the bearing. This method is not only destructive to the bearing, but also easy to cause damage to the bearing hole of the transmission housing, affecting the consistency of the product; finally, since the retaining bracket material of such bearings is copper and has a soft texture, using a screwdriver or crowbar to hit the bearing roller or retaining bracket can easily damage the bearing and cause the roller to fly out of the retaining bracket to injure people, posing a safety hazard.

[0005] Chinese patent CN114536275A discloses a bearing disassembly mechanism, including a screw, a screw bracket, an upper cover bracket, an upper cover, a rotating shaft, a rotating disk, an upper rotating rod, an upper pull rod, a lower rotating rod, a claw arm, a lower pull rod and a positioning rod; the screw is inserted into the through hole of the screw bracket, one end of the screw is fixedly connected to the top of the upper cover bracket, the upper cover is fixedly arranged at the bottom of the upper cover bracket, and the rotating shaft is inserted into the through hole of the upper cover; the rotating disk is sleeved on the rotating shaft, one end of the upper rotating rod is connected to the rotating disk, and the other end of the upper rotating rod is detachably connected to one end of the lower rotating rod; the claw arm is arranged at the other end of the lower rotating rod; the rotating shaft, the upper pull rod and the lower pull rod are detachably connected in sequence; the positioning rod is arranged at one end of the rotating shaft.

[0006] Chinese patent CN113787489A discloses a disassembly and assembly dual-purpose bearing tool, including an active screw, a bearing block, an upper shell, a tension transmission device, a lower shell and a clamp; the bearing block is detachably mounted at the center hole position of the upper end face of the upper shell, and the upper end face of the upper shell is provided with a plurality of through holes along the circumference of the center hole, and the tension transmission device passes through the through holes distributed circumferentially in the upper shell and is in clearance with the through holes; a through hole is provided on the upper end face of the tension transmission device, and the active screw passes through the through hole on the upper end face of the tension transmission device and rests on the bearing block, and the lower end of the tension transmission device is rigidly connected to the clamp; the upper end edge of the lower shell is detachably connected to the lower end edge of the upper shell.

[0007] However, the common disadvantages of the above-mentioned prior arts are: complex structure and inconvenient operation. Utility Model Content

[0008] The purpose of the utility model is to solve the problems that when using existing bearing removal tools to remove bearings, the bearings or bearing countersunk holes are easily damaged, there are safety risks, or the structure is complicated and the operation is inconvenient, and to provide a tool for removing bearings in blind holes on transmissions.

[0009] To achieve the above purpose, the technical solution provided by the utility model is:

[0010] A tool for removing a bearing in a blind hole on a transmission, used for removing a cylindrical roller bearing in a bearing countersunk hole on a secondary box partition board of the transmission, wherein the bearing countersunk hole is a blind hole, and the cylindrical roller bearing comprises an outer ring, a retaining bracket arranged on the inner side of the outer ring, and a plurality of cylindrical rollers connected to the retaining bracket, and the special features thereof are:

[0011] It includes a toothed bearing base plate, a bearing inner ring limiting pressure plate, a clamping nut, a screw rod, a supporting sleeve and a rotating nut;

[0012] The toothed bearing bottom plate is a combination of a toothed plate with a plurality of teeth on its outer circle and a first circular plate arranged at the upper end of the toothed plate, wherein the tooth root circle of the toothed plate coincides with the circumference of the first circular plate; the bearing inner ring limiting pressure plate is a combination of a second circular plate and a third circular plate arranged at the upper end of the second circular plate; the first circular plate and the second circular plate have the same diameter and are aligned with each other, and the third circular plate and the tooth top circle have the same diameter and are aligned with each other; threaded holes are arranged at the centers of the toothed plate and the first circular plate, and first mounting holes corresponding to the threaded holes are arranged at the centers of the second circular plate and the third circular plate; the teeth of the toothed plate are used to be placed below a plurality of cylindrical rollers, and the third circular plate is arranged above a plurality of cylindrical rollers; the tooth top circle diameter of the toothed plate is smaller than the diameter of the bearing counterbore and larger than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located; the diameter of the first circular plate is smaller than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located;

[0013] The support sleeve coaxial cover is arranged above the cylindrical roller bearing, and a second mounting hole opposite to the first mounting hole is arranged at the top center of the support sleeve, and the inner diameter of the support sleeve is larger than the outer diameter of the cylindrical roller bearing; the screw rod passes through the second mounting hole and the first mounting hole in sequence and is connected with the threaded hole; the clamping nut and the rotating nut are respectively sleeved on the screw rod, and the clamping nut contacts the upper surface of the third circular plate and is used to clamp the toothed bearing bottom plate, the cylindrical roller bearing and the bearing inner ring limiting pressure plate, and the rotating nut contacts the upper surface of the support sleeve and is used to disassemble the cylindrical roller bearing.

[0014] Furthermore, the number of teeth of the toothed plate in the toothed bearing bottom plate is consistent with the number of cylindrical rollers of the cylindrical roller bearing.

[0015] Furthermore, the thickness of the toothed plate is defined as d g The thickness of the first circular plate is d1, the thickness of the second circular plate is d2, the thickness of the third circular plate is d3, the height of each cylindrical roller is d4, and the thickness of each circular ring in the bracket is d c , then d g =d3=d c , d1+d2=d4.

[0016] Furthermore, the clamping nut and the rotating nut are both hexagonal nuts.

[0017] At the same time, the utility model also provides another tool for disassembling the inner bearing of the blind hole on the transmission, which is used to disassemble the cylindrical roller bearing arranged in the bearing countersunk hole on the auxiliary box partition board of the transmission, wherein the bearing countersunk hole is a blind hole, and the cylindrical roller bearing comprises an outer ring, a retaining bracket arranged on the inner side of the outer ring, and a plurality of cylindrical rollers connected to the retaining bracket, and the special features thereof are:

[0018] It includes a toothed bearing base plate, a bearing inner ring limiting pressure plate, a clamping nut, a screw rod, a sliding hammer and a pull rod;

[0019] The toothed bearing bottom plate is a combination of a toothed plate with a plurality of teeth on its outer circle and a first circular plate arranged at the upper end of the toothed plate, wherein the tooth root circle of the toothed plate coincides with the circumference of the first circular plate; the bearing inner ring limiting pressure plate is a combination of a second circular plate and a third circular plate arranged at the upper end of the second circular plate; the first circular plate and the second circular plate have the same diameter and are aligned with each other, and the third circular plate and the tooth top circle have the same diameter and are aligned with each other; threaded holes are arranged at the centers of the toothed plate and the first circular plate, and first mounting holes corresponding to the threaded holes are arranged at the centers of the second circular plate and the third circular plate; the teeth of the toothed plate are used to be placed below a plurality of cylindrical rollers, and the third circular plate is arranged above a plurality of cylindrical rollers; the tooth top circle diameter of the toothed plate is smaller than the diameter of the bearing counterbore and larger than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located; the diameter of the first circular plate is smaller than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located;

[0020] The clamping nut is sleeved on the screw rod and contacts the upper surface of the third circular plate, and is used to clamp the toothed bearing base plate, the cylindrical roller bearing and the bearing inner ring limiting pressure plate;

[0021] One end of the screw rod is arranged through each first mounting hole, and the other end is connected to one end of the pull rod. The sliding hammer is sleeved on the pull rod, and the sliding hammer can move axially along the pull rod to disassemble the cylindrical roller bearing.

[0022] Furthermore, the number of teeth on the toothed plate in the toothed bearing bottom plate is twelve.

[0023] Furthermore, the thickness of the toothed plate is defined as d g The thickness of the first circular plate is d1, the thickness of the second circular plate is d2, the thickness of the third circular plate is d3, the height of each cylindrical roller is d4, and the thickness of each circular ring in the bracket is d c , then d g =d3=d c , d1+d2=d4.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] 1. The tool for disassembling the bearing in the blind hole of the transmission provided by the utility model can directly disassemble the bearing without disassembling the main case of the transmission, thereby reducing the workload and safety risks of the disassembly process and shortening the test cycle;

[0026] 2. The tool provided by the utility model for removing the bearing in the blind hole of the transmission, the support sleeve and the rotating nut can be replaced by a sliding hammer and a pull rod, which is suitable for different working conditions, flexible and easy to use, and easy to assemble;

[0027] 3. The tool provided by the utility model for removing the bearing in the blind hole of the transmission has twelve teeth on the toothed bearing base plate, which corresponds to the number of rollers of the bearing, so that the rollers are evenly stressed without damaging the bearing rollers;

[0028] 4. The utility model provides a tool for removing the inner bearing of the blind hole on the transmission. g =d3=d c , d1+d2=d4, the thickness of the toothed bearing base plate and the bearing inner ring limit plate matches the bearing thickness, and the structure is firm and reliable;

[0029] 5. The tool for removing the inner bearing of the blind hole on the transmission provided by the utility model can be applied to transmissions such as S series transmissions and AMT series transmissions, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a cross-sectional view of the first embodiment of the utility model;

[0031] Figure 2 It is a cross-sectional view of the second embodiment of the utility model;

[0032] Figure 3 A top view of a toothed bearing bottom plate in an embodiment of the utility model;

[0033] Figure 4 This is a bottom view of the bearing inner ring limiting pressure plate in the embodiment of the utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0035] Figure 6 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0036] Description of reference numerals:

[0037] 1- cylindrical roller bearing, 2- auxiliary box partition board, 3- toothed bearing bottom plate, 4- bearing inner ring limit pressure plate, 5- clamping nut, 6- screw rod, 7- support sleeve, 8- rotating nut, 9- sliding hammer, 10- pull rod. DETAILED DESCRIPTION

[0038] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Embodiment 1

[0040] A tool for removing the inner bearing of a blind hole on a transmission, used for removing the cylindrical roller bearing 1 arranged in the bearing countersunk hole on the auxiliary box partition board 2 of the transmission, the bearing countersunk hole is a blind hole, the cylindrical roller bearing 1 includes an outer ring, a retaining bracket arranged on the inner side of the outer ring, and a plurality of cylindrical rollers connected to the retaining bracket, see Figure 1 and Figure 5 ,

[0041] It includes a toothed bearing base plate 3, a bearing inner ring limiting pressure plate 4, a clamping nut 5, a screw rod 6, a supporting sleeve 7 and a rotating nut 8;

[0042] See also Figure 3 The toothed bearing bottom plate 3 is a combination of a toothed plate with a plurality of teeth on its outer circle and a first circular plate arranged at the upper end of the toothed plate, the number of teeth of the toothed plate is consistent with the number of cylindrical rollers of the cylindrical roller bearing 1, wherein the tooth root circle of the toothed plate coincides with the circumference of the first circular plate; the bearing inner ring limiting pressure plate 4 is a combination of a second circular plate and a third circular plate arranged at the upper end of the second circular plate; the first circular plate and the second circular plate have the same diameter and are aligned with each other, and the third circular plate and the tooth top circle have the same diameter and are aligned; threaded holes are arranged in the centers of the toothed plate and the first circular plate, and first mounting holes corresponding to the threaded holes are arranged in the centers of the second circular plate and the third circular plate; the teeth of the toothed plate are used to be placed below the plurality of cylindrical rollers, and the third circular plate is arranged above the plurality of cylindrical rollers; the tooth top circle diameter of the toothed plate is smaller than the diameter of the bearing counterbore and larger than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located; the diameter of the first circular plate is smaller than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located;

[0043] The support sleeve 7 is coaxially covered above the cylindrical roller bearing 1. The top center of the support sleeve 7 is provided with a second mounting hole opposite to the first mounting hole. The inner diameter of the support sleeve 7 is larger than the outer diameter of the cylindrical roller bearing 1. The screw 6 passes through the second mounting hole, the first mounting hole and the threaded hole in sequence. The clamping nut 5 and the rotating nut 8 are respectively sleeved on the screw 6. The clamping nut 5 contacts the upper surface of the third circular plate and is used to clamp the toothed bearing bottom plate 3, the cylindrical roller bearing 1 and the bearing inner ring limit plate 4. At the same time, in order to prevent the screw 6 from rotating when the rotating nut 8 is working, it plays a role of clamping and anti-rotation. The rotating nut 8 contacts the upper surface of the support sleeve 7. The external force acts on the rotating nut 8 to rotate clockwise. The cylindrical roller bearing 1 can be disassembled by using the screw 6. The clamping nut 5 and the rotating nut 8 are both hexagonal nuts, which are easy to disassemble and assemble.

[0044] In order to make the structure stable, the thickness of the toothed plate is defined as d g The thickness of the first circular plate is d1, the thickness of the second circular plate is d2, the thickness of the third circular plate is d3, the height of each cylindrical roller is d4, and the thickness of each circular ring in the bracket is d c , then dg =d3=d c , d1+d2=d4.

[0045] The method for using the tool for removing the bearing in the blind hole of the transmission comprises the following steps:

[0046] Step 1: Assemble the tool for removing the blind hole bearing on the transmission;

[0047] Step 2: vertically insert the toothed bearing base plate 3 along the roller side edge of the inner ring of the cylindrical roller bearing 1 so that it is in the gap between the blind hole and the roller;

[0048] Step 3: Rotate the toothed bearing base plate 3 by k×15°, where k is a positive integer and is generally 1, so that each tooth on the toothed bearing base plate 3 is located exactly below the corresponding roller (the purpose is to maximize the contact area with each roller and make the roller evenly stressed);

[0049] Step 4: Connect the screw rod 6 to the mounting hole of the toothed bearing base plate 3 through threads to ensure that the position of the toothed bearing base plate 3 remains unchanged, and then place the bearing inner ring limiting pressure plate 4 on the upper end surface of the cylindrical roller bearing 1 through the screw rod 6, and then tighten the clamping nut 5 through the screw rod 6 to fix the toothed bearing base plate 3, the bearing inner ring limiting pressure plate 4 and the cylindrical roller bearing 1 as a whole; the function of the clamping nut 5 here also includes preventing the screw rod 6 from rotating;

[0050] Step 5: Put the support sleeve 7 on the cylindrical roller bearing 1, and then rotate the rotating nut 8 through the screw 6 to complete the disassembly of the cylindrical roller bearing 1.

[0051] Embodiment 2

[0052] A tool for removing the blind bore bearing on the transmission, see Figure 2 and Figure 6 The difference between this embodiment and the first embodiment is that the support sleeve 7 and the rotating nut 8 in the first embodiment are removed, and a slide hammer 9 and a pull rod 10 are added. One end of the screw rod 6 is arranged through each first mounting hole, and the other end is connected to one end of the pull rod 10. The slide hammer 9 is sleeved on the pull rod 10, and the slide hammer 9 can move axially along the pull rod 10. The remaining components, the connection relationship between the components and the position relationship are the same as those in the first embodiment.

[0053] The method for using the tool for removing the bearing in the blind hole of the transmission comprises the following steps:

[0054] Steps 1 to 4 are the same as those in Example 1;

[0055] Step 5: A pull rod 10 is arranged on the other end of the screw rod 6, and then a slide hammer 9 is sleeved on the pull rod 10, so that the slide hammer 9 reciprocates on the pull rod 10, and the cylindrical roller bearing 1 can be disassembled by relying on the impact force of the slide hammer 9.

[0056] The second embodiment is suitable for a disassembly environment with a relatively narrow space, and relies on the impact force of the slide hammer 9 and the pull rod 10 to disassemble the cylindrical roller bearing 1 .

[0057] It should be noted that the above is only a specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the specific implementation mode disclosed in the present utility model, and these modifications or substitutions should be included in the protection scope of the present utility model.

Claims

1. A tool for removing a bearing in a blind hole on a transmission, used for removing a cylindrical roller bearing (1) arranged in a bearing countersunk hole on a secondary box partition plate (2) of the transmission, wherein the bearing countersunk hole is a blind hole, and the cylindrical roller bearing (1) comprises an outer ring, a retaining bracket arranged on the inner side of the outer ring, and a plurality of cylindrical rollers connected to the retaining bracket, characterized in that: It comprises a toothed bearing base plate (3), a bearing inner ring limiting pressure plate (4), a clamping nut (5), a screw rod (6), a supporting sleeve (7) and a rotating nut (8); The toothed bearing bottom plate (3) is a combination of a toothed plate with a plurality of teeth on its outer circle and a first circular plate arranged at the upper end of the toothed plate, wherein the tooth root circle of the toothed plate coincides with the circumference of the first circular plate; the bearing inner ring limiting pressure plate (4) is a combination of a second circular plate and a third circular plate arranged at the upper end of the second circular plate; the first circular plate and the second circular plate have the same diameter and are aligned with each other, and the third circular plate and the tooth top circle have the same diameter and are aligned with each other; threaded holes are arranged at the centers of the toothed plate and the first circular plate, and first mounting holes corresponding to the threaded holes are arranged at the centers of the second circular plate and the third circular plate; the teeth of the toothed plate are used to be placed below a plurality of cylindrical rollers, and the third circular plate is arranged above the plurality of cylindrical rollers; the tooth top circle diameter of the toothed plate is smaller than the diameter of the bearing counterbore and larger than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located; the diameter of the first circular plate is smaller than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located; The support sleeve (7) is coaxially covered and arranged above the cylindrical roller bearing (1); a second mounting hole opposite to the first mounting hole is arranged at the top center of the support sleeve (7); the inner diameter of the support sleeve (7) is larger than the outer diameter of the cylindrical roller bearing (1); the screw rod (6) passes through the second mounting hole and the first mounting hole in sequence and is connected with the threaded hole; the clamping nut (5) and the rotating nut (8) are respectively sleeved on the screw rod (6); the clamping nut (5) contacts with the upper surface of the third circular plate and is used to clamp the toothed bearing bottom plate (3), the cylindrical roller bearing (1) and the bearing inner ring limiting pressure plate (4); the rotating nut (8) contacts with the upper surface of the support sleeve (7) and is used to disassemble the cylindrical roller bearing (1).

2. The tool for removing the blind hole inner bearing on the transmission according to claim 1, characterized in that: The number of teeth on the toothed plate in the toothed bearing base plate (3) is consistent with the number of cylindrical rollers in the cylindrical roller bearing (1).

3. The tool for removing the blind hole inner bearing on the transmission according to claim 2, characterized in that: Define the thickness of the toothed plate as d g The thickness of the first circular plate is d1, the thickness of the second circular plate is d2, the thickness of the third circular plate is d3, the height of each cylindrical roller is d4, and the thickness of each circular ring in the bracket is d c , then d g =d3=d c , d1+d2=d4.

4. The tool for removing the blind hole inner bearing on the transmission according to claim 3, characterized in that: The clamping nut (5) and the rotating nut (8) are both hexagonal nuts.

5. A tool for removing a bearing in a blind hole on a transmission, used for removing a cylindrical roller bearing (1) arranged in a bearing countersunk hole on a secondary box partition plate (2) of the transmission, wherein the bearing countersunk hole is a blind hole, and the cylindrical roller bearing (1) comprises an outer ring, a retaining bracket arranged on the inner side of the outer ring, and a plurality of cylindrical rollers connected to the retaining bracket, characterized in that: It comprises a toothed bearing base plate (3), a bearing inner ring limiting pressure plate (4), a clamping nut (5), a screw rod (6), a sliding hammer (9) and a pull rod (10); The toothed bearing bottom plate (3) is a combination of a toothed plate with a plurality of teeth on its outer circle and a first circular plate arranged at the upper end of the toothed plate, wherein the tooth root circle of the toothed plate coincides with the circumference of the first circular plate; the bearing inner ring limiting pressure plate (4) is a combination of a second circular plate and a third circular plate arranged at the upper end of the second circular plate; the first circular plate and the second circular plate have the same diameter and are aligned with each other, and the third circular plate and the tooth top circle have the same diameter and are aligned with each other; threaded holes are arranged at the centers of the toothed plate and the first circular plate, and first mounting holes corresponding to the threaded holes are arranged at the centers of the second circular plate and the third circular plate; the teeth of the toothed plate are used to be placed below a plurality of cylindrical rollers, and the third circular plate is arranged above the plurality of cylindrical rollers; the tooth top circle diameter of the toothed plate is smaller than the diameter of the bearing counterbore and larger than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located; the diameter of the first circular plate is smaller than the diameter of the circle where the inner edges of the plurality of cylindrical rollers are located; The clamping nut (5) is sleeved on the screw rod (6) and contacts the upper surface of the third circular plate, and is used to clamp the toothed bearing base plate (3), the cylindrical roller bearing (1) and the bearing inner ring limiting pressure plate (4); One end of the screw rod (6) is arranged through each first mounting hole, and the other end is connected to one end of the pull rod (10). The sliding hammer (9) is sleeved on the pull rod (10). The sliding hammer (9) can move axially along the pull rod (10) and is used to disassemble the cylindrical roller bearing (1).

6. The tool for removing the blind hole inner bearing on the transmission according to claim 5, characterized in that: The number of teeth on the toothed plate of the toothed bearing bottom plate (3) is twelve.

7. The tool for removing the blind hole inner bearing on the transmission according to claim 6, characterized in that: Define the thickness of the toothed plate as d g The thickness of the first circular plate is d1, the thickness of the second circular plate is d2, the thickness of the third circular plate is d3, the height of each cylindrical roller is d4, and the thickness of each circular ring in the bracket is d c , then d g =d3=d c , d1+d2=d4.

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