Bearing seat mounting jig and roll shaft assembly

Abstract

The utility model discloses a bearing seat installation jig and a roll shaft assembly, because a positioning block is arranged in a frame body, during installation, a bearing seat is firstly placed in the frame body, the bearing seat is clamped with the positioning block to complete the positioning of the bearing seat, then the joint of a roll shaft and a bearing is placed in a notch, the notch can limit in the horizontal direction, and the roll shaft and the bearing are fixed on the frame body. Then the driving piece is started, the pushing block is arranged opposite to the notch, the driving piece is connected to the side, away from the notch, of the pushing block, the driving piece can drive the pushing block to move in the direction close to the notch, the base is located between the positioning block and the pushing block, the pushing block forms acting force on the base, and therefore the whole bearing seat moves in the direction close to the bearing; and finally, the bearing is installed in the bearing seat, manual positioning is not needed, operation is convenient, the acting force of the push block on the base is more dispersed compared with a rubber hammer, and parts are not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the field of bearings, and in particular to a bearing seat mounting fixture and a roller shaft assembly. Background Art

[0002] In the prior art, when installing the roller bearing and the bearing seat, manual docking is often required, which requires high technical skills of the operator; the bearing and the bearing seat have an interference fit, and when installing the bearing into the bearing seat, a rubber hammer is used to knock the bearing to install it, which poses a risk of damaging the bearing. The bearing is an important basic component of various mechanical equipment, and its accuracy, performance, life and reliability play a decisive role in the accuracy, performance, life and reliability of the main machine. Therefore, it is necessary to provide a fixture that facilitates the installation of the bearing and the bearing seat to reduce damage to the parts. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a bearing seat mounting fixture and a roller assembly, which can facilitate the installation of the roller bearing and the bearing seat.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: on the one hand, the utility model provides a bearing seat installation fixture, including a frame body and a driving member, the adjacent two side walls of the frame body are respectively provided with an opening and a notch, and the opening and the notch are communicated with each other, and the notch is used to limit the bearing; a positioning block and a push block are provided inside the frame body, the push block is arranged opposite to the notch, the positioning block is located between the notch and the push block, and a clamping notch is provided on the side of the positioning block facing the opening, and the clamping notch is used to limit the bearing seat;

[0005] The driving member is connected to a side of the push block away from the notch, and is used to drive the push block to move along the arrangement direction of the push block and the notch; the moving direction of the push block, the axis of the engaging notch and the axis of the notch coincide with each other.

[0006] As a further improvement of the above technical solution, the driving member includes mutually connected cylinders, the cylinders include a cylinder body and a piston rod, the cylinder body is fixed to the side wall of the frame, the side wall of the frame opposite to the push block is provided with a connecting hole, the piston rod is passed through the connecting hole, and the piston rod is connected to the push block.

[0007] As a further improvement of the above technical solution, the cylinder is provided with an air valve, and the air valve is used to adjust the air pressure of the cylinder.

[0008] As a further improvement of the above technical solution, a coil spring is connected to the outer sleeve of the piston rod.

[0009] As a further improvement of the above technical solution, a through hole is provided on the pushing block, and the end of the piston rod close to the notch is located in the through hole, and the piston rod is in interference fit with the through hole.

[0010] As a further improvement of the above technical solution, the notch is U-shaped.

[0011] On the other hand, the present utility model further provides a roller shaft assembly, including a bearing seat, a roller shaft and the aforementioned bearing seat installation jig. The bearing seat includes a base, a clamping portion and a connecting portion connected in sequence. The clamping portion is located in the clamping notch, the base is located between the positioning block and the pushing block, the connecting portion is located between the notch and the positioning block, an interface is provided on the connecting portion, the axis of the interface coincides with the axis of the notch, and the interface is connected to the bearing of the roller shaft.

[0012] As a further improvement of the above technical solution, the positioning block is fixedly connected to the frame body, the connecting portion abuts against the positioning block, and the distance between the positioning block and the base is equal to the length of the bearing of the roller shaft entering the interface.

[0013] As a further improvement of the above technical solution, the clamping portion is cylindrical, and correspondingly, the clamping notch is arc-shaped.

[0014] As a further improvement of the above technical solution, the base is square, and the bottom surface of the frame body opposite to the opening and the two inner walls of the frame body form a limiting channel. The base is located in the limiting channel, and the base is slidably connected to the limiting channel. The base moves along the arrangement direction of the pushing block and the notch.

[0015] The beneficial effects of the present utility model are as follows: Since a positioning block is provided inside the frame body, during installation, first place the bearing seat into the frame body, and clamp the bearing seat with the positioning block to complete the positioning of the bearing seat. Then place the connection part between the roller shaft and its bearing into the notch. The notch can limit the bearing of the roller shaft. Then start the driving member. Since the moving direction of the pushing block, the axis of the clamping notch and the axis of the notch coincide, at this time, the bearing seat and the bearing of the roller shaft are coaxially arranged. Under the push of the pushing block, the bearing seat and the bearing of the roller shaft can be accurately docked, so that the bearing of the roller shaft is installed inside the bearing seat. There is no need for manual positioning, the operation is convenient, and the acting force of the pushing block on the bearing seat is more dispersed than that of a rubber hammer, and it is not easy to damage the parts. Description of the Drawings

[0016] The following further illustrates the present utility model with reference to the drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of some components of the bearing seat installation jig provided by the preferred embodiment of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of a bearing housing of a roller shaft assembly provided by a preferred embodiment of the present utility model;

[0019] Figure 3 It is a schematic structural diagram of an installation jig for a bearing housing and the bearing housing of a roller shaft assembly provided by a preferred embodiment of the present utility model.

[0020] Figure 4 It is a schematic structural diagram of a roller shaft assembly provided by a preferred embodiment of the present utility model.

[0021] Figure 5 is Figure 4 an enlarged view of part A in

[0022] Reference numerals: 1, frame body; 2, driving member; 3, bearing housing; 4, roller shaft;

[0023] 11, opening; 12, notch; 13, positioning block; 14, pushing block; 15, connecting hole; 20, cylinder body; 21, cylinder; 22, piston rod; 31, base; 32, clamping portion; 33, connecting portion; 41, bearing;

[0024] 131, clamping notch; 141, through hole; 211, air valve; 221, helical spring; 331, interface; 332, limiting channel. Detailed implementation manners

[0025] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with embodiments and drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to direct connection of components, but refer to more optimal connection structures that can be formed by adding or reducing connection accessories according to specific implementation situations. For example, fixed connection / fixed installation can be selected from screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting, etc. as required, and detachable connection can be selected from screw connection, bolt connection, threaded connection, snap connection, mortise and tenon connection, magic tape connection, etc. as required. Each technical feature in the present utility model can be combined interactively without conflict.

[0026] Please refer to Figures 1-3The preferred embodiment of the utility model provides a bearing seat installation fixture, including a frame body 1 and a driving member 2, the adjacent two side walls of the frame body 1 are respectively provided with an opening 11 and a notch 12, and the opening 11 and the notch 12 are communicated with each other, and the notch 12 is used to limit the bearing 41; a positioning block 13 and a push block 14 are provided inside the frame body 11, the push block 14 is arranged opposite to the notch 12, the positioning block 13 is located between the notch 12 and the push block 14, and a clamping notch 131 is provided on the side of the positioning block 13 facing the opening 11, and the clamping notch 131 is used to limit the bearing seat 3; the driving member 2 is connected to the side of the push block 14 away from the notch 12, and the driving member 2 is used to drive the push block 14 to move along the arrangement direction of the push block 14 and the notch 12; the moving direction of the push block 14, the axis of the clamping notch 131 and the axis of the notch 12 coincide. Since a positioning block 13 is provided inside the frame 1, during installation, the bearing seat 3 is first placed into the frame 1, and the bearing seat 3 is clamped with the positioning block 13 to complete the positioning of the bearing seat 3, and then the connection between the roller shaft 4 and its bearing 41 is placed into the notch 12. The notch 12 can limit the bearing 41, and then the driving member 2 is started. Since the moving direction of the push block 14, the axis of the clamping notch 131 and the axis of the notch 12 coincide, the bearing seat 3 and the bearing 41 are coaxially arranged at this time. Under the push of the push block 14, the bearing seat 3 and the bearing 41 can be accurately docked, so that the bearing 41 is installed inside the bearing seat 3. No manual positioning is required, and the operation is convenient. In addition, the force of the push block 14 on the bearing seat 3 is more dispersed than that of a rubber hammer, and it is not easy to damage the parts.

[0027] The driving member 2 includes a cylinder 21, and the cylinder 21 includes a cylinder body 20 and a piston rod 22. The cylinder body 20 is fixed to the side wall of the frame 1. The side wall of the frame 1 opposite to the push block 14 is provided with a connecting hole 15. The piston rod 22 is passed through the connecting hole 15, and the piston rod 22 is connected to the push block 14. The cylinder 21 can drive the push block 14 to perform stable linear motion. The structure is simple and easy to implement.

[0028] In other embodiments, the driving member can also be set as a motor and a screw rod connected to each other, and the nut of the screw rod is connected to the push block. When the motor is started, the nut of the screw rod drives the push block to move in a straight line. The motor drive is more environmentally friendly, which is beneficial to saving resources and protecting the environment.

[0029] The cylinder 21 is provided with an air valve 211, which is used to adjust the air pressure of the cylinder 21. The air valve 211 can control the air source to inflate and deflate the cylinder. During installation, press the air valve 211 downward to inflate the cylinder 21, and the piston rod 22 drives the push block 14 to move toward the direction close to the notch 12. After the installation is completed, pull the air valve 211 upward to deflate the cylinder, and the piston rod 22 drives the push block 14 to move away from the notch 12. The push block 14 is separated from the base 31, which makes it easy to remove the installed bearing seat 3 from the frame 1.

[0030] See alsoFigure 3 A spiral spring 221 is sleeved outside the piston rod 22. The spiral spring 221 can play a buffering role, slowing down the forward or retraction speed of the piston rod 22, preventing the push block 14 from colliding hard with the base 31, and further preventing part damage.

[0031] Please refer to Figure 1 A through hole 141 is provided on the push block 14. The end of the piston rod 22 close to the notch 12 is located in the through hole 141, and the piston rod 22 is in interference fit with the through hole 141. The connection between the piston rod 22 and the push block 14 is firm, preventing the two from separating during the telescopic process of the piston rod 22.

[0032] The notch 12 is U-shaped, and the lower end of the notch 12 is a rounded arc, which can prevent damage to the connection between the counter-roller shaft 4 and the bearing 41.

[0033] A preferred embodiment of the present utility model further provides a roller shaft assembly, including a bearing seat 3, a roller shaft 4 and the bearing seat installation jig of the above embodiment; the bearing seat 3 includes a base 31, a clamping portion 32 and a connecting portion 33 connected in sequence. The clamping portion 32 is located in the clamping notch 131, the base 31 is located between the positioning block 13 and the push block 14, the connecting portion 33 is located between the notch 12 and the positioning block 13, and an interface 331 is provided on the connecting portion 33. The axis of the interface 331 coincides with the axis of the notch 12, and the interface 331 is used to connect with the bearing 41 of the roller shaft 4. During installation, first place the bearing seat 3 into the frame 1, and clamp the clamping portion 32 with the positioning block 13 to complete the positioning of the bearing seat 3. Please refer to Figure 4 and Figure 5 Then, place the connection between the roller shaft 4 and the bearing 41 into the notch 12. The notch 12 can limit the position in the horizontal direction. Then start the driving member 2. The driving member 2 can drive the push block 14 to move towards the direction close to the notch 12. And the base 31 is located between the positioning block 13 and the push block 14. The push block 14 forms a force on the base 31, so that the entire bearing seat 3 moves towards the direction close to the bearing 41. Finally, the bearing 41 is installed inside the bearing seat 3. There is no need for manual positioning, and the operation is convenient. Moreover, the force of the push block 14 on the base 31 is more dispersed than the force of hitting the base 31 with a rubber hammer, and it is not easy to damage the parts.

[0034] The positioning block 13 is fixedly connected to the frame 1, the connecting portion 33 abuts against the positioning block 13, and the distance between the positioning block 13 and the base 31 is equal to the length of the bearing 41 of the roller shaft 4 entering the interface 331. The positioning block 13 can play a role in limiting the base 31 in the axial direction of the roller shaft 4. During installation, first abut the bearing 41 against the bearing seat 3, and then start the cylinder. When the base 31 abuts against the positioning block 13, the bearing 41 fully enters the bearing seat 3, and the installation is completed, which can play a role in prompting the operator and is further convenient for operation.

[0035] The snap-in part 32 is cylindrical. Correspondingly, the snap-in notch 131 is arc-shaped. Since the cylindrical shape does not need to consider the angle, when the snap-in part 32 is snap-connected with the snap-in notch 131, the snap-in part 32 at any angle can complete the snap connection, which further facilitates the operation.

[0036] The base 31 is square. The square base 31 is not easy to roll, which is beneficial to maintaining the stability of the entire bearing seat 3 during the movement process.

[0037] The bottom surface of the frame body 1 opposite to the opening 11 and the two inner walls of the frame body 1 opposite to each other form a limiting channel 332. The base 31 is located in the limiting channel 332, and the base 31 is slidably connected with the limiting channel 332. The base 31 moves along the arrangement direction of the push block 14 and the notch 12. The inner wall of the frame body 1 can play a role in guiding the sliding of the base 31. During the process of the push block 14 pushing the bearing seat 3, the base 31 is not easy to skew. The axial direction of the connecting part 33, the axial direction of the snap-in part 32, and the axial direction of the roller shaft 4 are located on the same straight line, improving the installation quality of the bearing 41 and the bearing seat 3.

[0038] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the described embodiment. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A bearing seat mounting fixture, characterized in that: It comprises a frame and a driving member, the adjacent two side walls of the frame are respectively provided with an opening and a notch, and the opening and the notch are communicated with each other, and the notch is used to limit the bearing; a positioning block and a push block are arranged inside the frame, the push block is arranged opposite to the notch, the positioning block is located between the notch and the push block, and a clamping notch is arranged on one side of the positioning block facing the opening, and the clamping notch is used to limit the bearing seat; The driving member is connected to a side of the push block away from the notch, and is used to drive the push block to move along the arrangement direction of the push block and the notch; the moving direction of the push block, the axis of the engaging notch and the axis of the notch coincide with each other.

2. The bearing seat installation fixture according to claim 1, characterized in that: The driving member includes a cylinder, which includes a cylinder body and a piston rod. The cylinder body is fixed to the side wall of the frame. The side wall of the frame opposite to the push block is provided with a connecting hole. The piston rod is inserted into the connecting hole and is connected to the push block.

3. The bearing seat installation fixture according to claim 2, characterized in that: The cylinder is provided with an air valve, and the air valve is used to adjust the air pressure of the cylinder.

4. The bearing seat installation fixture according to claim 2, characterized in that: The piston rod outer shell is connected with a coil spring.

5. The bearing seat installation fixture according to claim 2, characterized in that: The push block is provided with a through hole, the end of the piston rod close to the notch is located in the through hole, and the piston rod is interference fit with the through hole.

6. The bearing seat installation fixture according to claim 1, characterized in that: The notch is U-shaped.

7. A roller assembly, characterized in that: It includes a bearing seat, a roller shaft and the bearing seat mounting fixture according to any one of claims 1 to 6, the bearing seat includes a base, a clamping part and a connecting part connected in sequence, the clamping part is located in the clamping notch, the base is located between the positioning block and the push block, the connecting part is located between the notch and the positioning block, the connecting part is provided with an interface, the axis of the interface coincides with the axis of the notch, and the interface is connected to the bearing of the roller shaft.

8. The roller assembly according to claim 7, characterized in that: The positioning block is fixedly connected to the frame, the connecting portion abuts against the positioning block, and the distance between the positioning block and the base is equal to the length of the roller shaft bearing entering the interface.

9. The roller assembly according to claim 7, characterized in that: The clamping portion is cylindrical, and correspondingly, the clamping notch is arc-shaped.

10. The roller assembly according to claim 7, characterized in that: The base is square, and the bottom surface of the frame body arranged opposite to the opening and the two inner walls opposite to the frame body form a limiting channel. The base is located in the limiting channel, and the base is slidably connected to the limiting channel. The base moves along the arrangement direction of the push block and the notch.

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