Bicycle bearing press-in tool
By designing the drive mechanism and feeding components of the bicycle bearing press-fitting tool, automated bearing press-fitting was achieved, solving the problems of time-consuming, labor-intensive, and high labor costs associated with existing tools, and improving efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGDEZHEN JINGXIN PRECISION MANUFACTURING CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-05
AI Technical Summary
Existing bicycle bearing press-fitting tools rely on handwheel-driven gear and rack transmission, which is time-consuming, labor-intensive, and has high labor costs.
The system employs a drive mechanism and unloading components, utilizing a cylinder to drive a moving rod and rack to achieve automated bearing press-fitting. It also ensures precise movement through slide rails and grooves, and reduces manual operation by combining automatic unloading function.
It improves bearing press-fit efficiency, reduces labor costs and production energy consumption, and enhances press-fit safety and speed.
Smart Images

Figure CN224322661U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing press-fitting equipment technology, and in particular to a bicycle bearing press-fitting tool. Background Technology
[0002] Bearings are essential components in mechanical equipment. Their main function is to support rotating mechanical parts, reduce the coefficient of friction during movement, and ensure rotational accuracy. Types of bearings include sliding bearings, spherical plain bearings, rolling bearings, roller bearings, angular contact bearings, self-aligning ball bearings, and thrust ball bearings.
[0003] Utility model CN222740744U relates to bearing installation auxiliary tools, providing a bearing press-fit tool. It includes a base, a support column, a gear, a rack, a handwheel, and a press head. The support column is vertically connected to one side of the top surface of the base. The top of the support column has two mutually perpendicular through holes, a first through hole and a second through hole. The rack is vertically slidably connected in the first through hole. The gear is rotatably connected in the second through hole via a rotating shaft, meshing with the rack. The bottom of the rack is connected to the press head, and one end of the rotating shaft is connected to the handwheel. Rotating the handwheel drives the gear to rotate, which in turn moves the rack vertically. The press head at the bottom of the rack presses the bearing into the bushing, resulting in a smoother pressing process that prevents damage to the bearing. The gear-rack transmission makes operation more time-saving and labor-saving. The base has a through groove, allowing the bearing to be pressed out of the bushing by pressing down the press head, thus achieving bearing removal. This utility model facilitates both bearing installation and removal, with a simple structure and convenient operation.
[0004] The tool disclosed in the above utility model relies entirely on handwheel-driven gear and rack transmission when pressing bearings, which is time-consuming, labor-intensive, and has high labor costs. Utility Model Content
[0005] The purpose of this utility model is to provide a bicycle bearing press-fit tool to solve the problem mentioned in the background art that the tool disclosed in the above utility model relies entirely on handwheel drive gear rack transmission when press-fitting bearings, which is time-consuming, labor-intensive, and has high labor costs.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a bicycle bearing press-fitting tool, comprising a base, a feeding component and a drive mechanism on the base, a support platform above the drive mechanism, a rotor placed on the support platform, the drive mechanism including a transmission gear rotatably connected to the base, both ends of the transmission gear meshing with racks, the ends of the two racks that are far apart from each other being connected to moving rods, the top ends of the two moving rods being provided with stamping blocks, the ends of the two stamping blocks that are close to each other being provided with storage slots, bearings placed in the storage slots, and a cylinder being provided on the base, the output shaft of the cylinder being connected to one of the moving rods.
[0007] Preferably, the base is provided with a slide rail, and the bottom ends of the two moving rods are provided with slide grooves that are adapted to the slide rail.
[0008] Preferably, the base is provided with a protective shell, the transmission gear and rack are both inside the protective shell, and the support platform and cylinder are located on the top of the protective shell.
[0009] Preferably, the protective shell is provided with a connecting groove, the size and position of which are adapted to the moving rod.
[0010] Preferably, the feeding component includes a slide rail on the base, and a storage cylinder is provided at the top of the slide rail, with the storage cylinder connected to the slide rail.
[0011] Preferably, a baffle is rotatably connected to the bottom end of the slide near the rotor, and the baffle is located at the center of the slide.
[0012] Preferably, the length of the stamping block is greater than the distance between the bearing and the rotor.
[0013] The beneficial effects of this utility model are:
[0014] In this invention, by setting a drive mechanism, the bearing is press-fitted onto the rotor through the drive mechanism, thus avoiding the defects of relying on manual stamping in the prior art, effectively improving the bearing press-fitting efficiency and reducing labor costs. By controlling the bidirectional synchronous movement of the drive mechanism, the operation of pressing bearings onto both ends of the rotor is completed simultaneously, avoiding the use of additional driving force and effectively reducing production energy consumption.
[0015] This invention features an automatic bearing unloading mechanism, eliminating the need for manual bearing placement and improving both the safety and speed of bearing press-fitting. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a bicycle bearing press-fitting tool proposed in this utility model;
[0017] Figure 2 This is a bottom view sectional structural diagram of the drive mechanism of a bicycle bearing press-fitting tool proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the material feeding component of a bicycle bearing press-fitting tool proposed in this utility model;
[0019] Figure 4 This is a cross-sectional schematic diagram of the slide rail and slide groove of a bicycle bearing press-fitting tool proposed in this utility model.
[0020] In the diagram: 1. Base; 2. Drive mechanism; 3. Support platform; 4. Rotor; 5. Feeding component; 6. Bearing;
[0021] 21. Transmission gear; 22. Rack; 23. Moving rod; 24. Stamping block; 25. Storage slot; 26. Cylinder; 27. Slide rail; 28. Slide groove; 29. Protective shell; 211. Connecting groove;
[0022] 51. Slide; 52. Storage cylinder; 53. Baffle. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-4 A bicycle bearing press-fitting tool includes a base 1, a feeding component 5 and a drive mechanism 2 on the base 1, a support platform 3 above the drive mechanism 2, a rotor 4 placed on the support platform 3, the drive mechanism 2 includes a transmission gear 21 rotatably connected to the base 1, both ends of the transmission gear 21 are meshed with racks 22, the ends of the two racks 22 that are far apart from each other are connected to moving rods 23, the top ends of the two moving rods 23 are provided with stamping blocks 24, the ends of the two stamping blocks 24 that are close to each other are provided with storage slots 25, bearings 6 are placed on the storage slots 25, and a cylinder 26 is provided on the base 1, the output shaft of the cylinder 26 is connected to one of the moving rods 23.
[0025] When using this tool, first place an appropriate amount of bearings 6 on the unloading part 5. The bearings 6 are moved from the unloading part 5 to the placement slot 25. Then, place the rotor 4 on the support platform 3. After that, turn on the cylinder 26. The output shaft of the cylinder 26 drives the moving rod 23 to move towards the support platform 3. When moving, the moving rod 23 connected to the cylinder 26 drives the rack 22 to move, thereby pushing the transmission gear 21 to rotate. The rotation of the transmission gear 21 drives the other rack 22 to move, so that the two racks 22 move closer to each other. This causes the two moving rods 23 and the two stamping blocks 24 on the moving rods 23 to move synchronously towards the support platform 3. This causes the bearings 6 on the two stamping blocks 24 to move synchronously towards the rotor 4 and press the bearings 6 onto both ends of the rotor 4 by the thrust of the stamping blocks 24.
[0026] Specifically, in this embodiment, a slide rail 27 is provided on the base 1, and a slide groove 28 is provided at the bottom end of each of the two moving rods 23. The slide groove 28 is adapted to the slide rail 27, so that the moving rods 23 can be slidably connected to the base 1 through the compatibility of the slide rail 27 and the slide groove 28. Thus, the slide rail 27 provides a moving guide for the moving rods 23, so that the two moving rods 23 can move along the same horizontal line, thereby improving the accuracy of the bearing 6 during press-fitting.
[0027] Specifically, in this embodiment, a protective shell 29 is provided on the base 1, and the transmission gear 21 and rack 22 are both inside the protective shell 29. The support platform 3 and the cylinder 26 are provided on the top of the protective shell 29, so that the protective shell 29 can protect the transmission gear 21 and rack 22 and prevent foreign objects from entering the drive components when the tool is running, thus affecting the normal operation of the device.
[0028] Specifically, in this embodiment, the protective shell 29 is provided with a connecting groove 211. The size and position of the connecting groove 211 are adapted to the moving rod 23, so that the two moving rods 23 can pass through the protective shell 29 through the connecting groove 211 to achieve the purpose of driving the stamping block 24 to move. At the same time, the connecting groove 211 facilitates the moving rod 23 to maintain a normal moving state on the protective shell 29.
[0029] Specifically, in this embodiment, the unloading component 5 includes a slide 51 disposed on the base 1, and a storage cylinder 52 disposed on the top of the slide 51. The storage cylinder 52 is connected to the slide 51 and is used to store a certain number of bearings 6. The bearings 6 enter the slide 51 from the storage cylinder 52 and slide downward through the slide 51 until they fall into the storage slot 25, thereby completing the automatic unloading of the bearings 6 and avoiding the manual placement of the bearings 6 in the prior art.
[0030] Specifically, in this embodiment, a baffle 53 is rotatably connected to the bottom end of the slide 51 near the rotor 4. The baffle 53 is located at the center of the slide 51, so that the baffle 53 can block the bearing 6 falling into the storage groove 25 and prevent the bearing 6 from falling off the storage groove 25. When the cylinder 26 pushes the stamping block 24 closer to the rotor 4, the baffle 53 rotates upward under the thrust, so that the bearing 6 can move synchronously towards the rotor 4.
[0031] Specifically, in this embodiment, the length of the stamping block 24 is greater than the distance between the bearing 6 and the rotor 4, so that when the stamping block 24 drives the bearing 6 in the storage groove 25 to move towards the rotor 4, the next bearing 6 discharged by the unloading component 5 can always be on the upper surface of the stamping block 24. When the stamping block 24 returns to the starting position, it falls into the storage groove 25 so that the next round of pressing work can be carried out.
[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A bicycle bearing press-fitting tool, comprising a base (1), characterized in that: The base (1) is provided with a feeding component (5) and a driving mechanism (2). A support platform (3) is provided above the driving mechanism (2). A rotor (4) is placed on the support platform (3). The driving mechanism (2) includes a transmission gear (21) rotatably connected to the base (1). Both ends of the transmission gear (21) are meshed with racks (22). The ends of the two racks (22) that are far apart from each other are connected to moving rods (23). The top ends of the two moving rods (23) are provided with stamping blocks (24). The ends of the two stamping blocks (24) that are close to each other are provided with storage slots (25). A bearing (6) is placed on the storage slots (25). A cylinder (26) is provided on the base (1). The output shaft of the cylinder (26) is connected to one of the moving rods (23).
2. The bicycle bearing press-fitting tool according to claim 1, characterized in that: The base (1) is provided with a slide rail (27), and the bottom ends of the two moving rods (23) are provided with slide grooves (28), which are adapted to the slide rail (27).
3. The bicycle bearing press-fitting tool according to claim 1, characterized in that: The base (1) is provided with a protective shell (29), the transmission gear (21) and the rack (22) are both inside the protective shell (29), and the support platform (3) and the cylinder (26) are located on the top of the protective shell (29).
4. The bicycle bearing press-fitting tool according to claim 3, characterized in that: The protective shell (29) is provided with a connecting groove (211), and the size and position of the connecting groove (211) are adapted to the moving rod (23).
5. A bicycle bearing press-fitting tool according to claim 1, characterized in that: The feeding component (5) includes a slide (51) on the base (1), and a storage cylinder (52) is provided on the top of the slide (51). The storage cylinder (52) is connected to the slide (51).
6. A bicycle bearing press-fitting tool according to claim 5, characterized in that: A baffle (53) is rotatably connected to the bottom end of the slide (51) near the rotor (4), and the baffle (53) is located at the center of the slide (51).
7. A bicycle bearing press-fitting tool according to claim 1, characterized in that: The length of the stamping block (24) is greater than the distance between the bearing (6) and the rotor (4).