Tool for press fitting of small arc bevel gear bearing and check ring

By designing a tooling that includes a transition component and a pressing component, the synchronous pressing of the small circular arc bevel gear bearing and the retaining ring was achieved, solving the problems of assembly inconsistency and low efficiency, and improving assembly quality and efficiency.

CN224274868UActive Publication Date: 2026-05-26SHANDONG BOFA POWER MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG BOFA POWER MACHINERY
Filing Date
2025-07-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The assembly process of small circular arc bevel gear bearings and retaining rings currently suffers from problems such as inconsistent manual calibration, high labor intensity, low assembly efficiency, and unstable quality.

Method used

A tooling assembly including a transition component, a bevel gear body, a locating pin, a spring, a support component, a plug, and a pressing component was designed. The bearing and retaining ring are synchronously pressed together by a cylinder drive, ensuring coaxiality consistency and assembly quality.

Benefits of technology

This effectively reduced labor intensity, improved assembly efficiency, and ensured consistent assembly quality of bearings and retaining rings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tool for press fitting of a small arc bevel gear bearing and a check ring, which comprises a transition assembly, a bevel gear body, a positioning pin, a spring, a support assembly, a plug and a crimping assembly, and the bevel gear body is sleeved on the transition assembly; the supporting assembly is arranged below the transition assembly; the positioning pin and the spring are installed in the supporting assembly, and the positioning pin penetrates through the supporting assembly and extends into the bevel gear body. The plug is arranged at the bottom end of the supporting assembly. The crimping assembly is arranged on the transition assembly. Therefore, the labor intensity of workers can be effectively relieved, and the consistency of the assembling quality is ensured while the assembling efficiency of the bearing and the check ring is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of gear press fitting, and in particular to a tooling for press fitting small circular arc bevel gear bearings and retaining rings. Background Technology

[0002] In the field of mechanical transmission, small circular arc bevel gears are widely used in the power transmission systems of automobiles, construction machinery, precision instruments and other equipment due to their high transmission efficiency and strong load-bearing capacity.

[0003] In the production of small circular arc bevel gears, the assembly of bearings and retaining rings is a crucial step in component assembly. The assembly of bearings and retaining rings typically employs a step-by-step manual operation. First, operators use simple pressing tools (such as a manual press or hydraulic jack) to press the bearings one by one into their pre-set mounting positions on the gear shaft. During pressing, the coaxiality of the bearing and the journal must be repeatedly calibrated to avoid damage to the bearing raceway or deformation of the gear shaft due to uneven loading. After the bearings are pressed into place, the retaining rings are manually expanded using external expansion pliers, temporarily increasing their inner diameter to be larger than the retaining ring groove diameter on the gear shaft. The retaining rings are then inserted into the groove, and the external expansion pliers are released, completing the retaining ring fixation.

[0004] However, this assembly method has significant drawbacks: Firstly, bearing press-fitting relies on manual calibration, making it difficult to ensure consistent coaxiality each time. This can easily lead to uneven interference fit between the bearing inner ring and the journal, resulting in abnormal wear or vibration during subsequent transmission. Secondly, retaining ring assembly requires manual operation of external clamps, which is not only labor-intensive but also relies entirely on the operator's experience to control the external clamping force. Over-expansion can cause the retaining ring to lose its elasticity, while insufficient expansion can prevent the retaining ring from fully engaging in the slot, posing a risk of it falling off after assembly. Furthermore, the step-by-step operation mode results in a longer assembly time for individual gear components, thus reducing the efficiency of bearing and retaining ring assembly. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, one objective of this utility model is to provide a tooling for press-fitting small circular arc bevel gear bearings and retaining rings, which can effectively reduce the labor intensity of workers and ensure the consistency of assembly quality while improving the assembly efficiency of bearings and retaining rings.

[0007] To achieve the above objectives, this utility model proposes a tooling for press-fitting a small arc bevel gear bearing and a retaining ring, comprising a transition assembly, a bevel gear body, a locating pin, a spring, a support assembly, a plug, and a pressing assembly. The bevel gear body is sleeved on the transition assembly; the support assembly is located below the transition assembly; the locating pin and the spring are respectively installed inside the support assembly, with the locating pin passing through the support assembly and extending into the interior of the bevel gear body; the plug is located at the bottom end of the support assembly; and the pressing assembly is located on the transition assembly.

[0008] This utility model provides a tooling for press-fitting small circular arc bevel gear bearings and retaining rings, which can effectively reduce the labor intensity of workers and ensure the consistency of assembly quality while improving the assembly efficiency of bearings and retaining rings.

[0009] In addition, the tooling for press-fitting small circular arc bevel gear bearings and retaining rings according to the above-mentioned application may also have the following additional technical features:

[0010] Specifically, the transition assembly includes a transition head, a small end, a large end, and a plug, wherein the small end and the large end are respectively installed at both ends of the transition head, and the plug is disposed at the bottom end of the large end.

[0011] Specifically, the support assembly includes a base and a connecting end. The top of the base has a first mounting hole, the connecting end is installed at the bottom of the base, the middle of the connecting end has a second mounting hole, and the interior of the base has a mounting groove, the two ends of which are respectively connected to the first mounting hole and the second mounting hole.

[0012] Specifically, the crimping assembly includes a crimping head and a connecting rod, wherein the connecting rod is installed at the top of the crimping head, and the bottom of the crimping head has a clearance groove for the transition head to be inserted.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of a tooling structure for pressing a small circular arc bevel gear bearing and a retaining ring according to the present invention;

[0016] Figure 2 This is a schematic diagram of the tooling transition assembly structure for press-fitting small circular arc bevel gear bearings and retaining rings according to this utility model;

[0017] Figure 3 This is a schematic diagram of the tooling support assembly structure for press-fitting small circular arc bevel gear bearings and retaining rings according to this utility model;

[0018] Figure 4 This is a schematic diagram of the tooling pressing assembly for pressing small circular arc bevel gear bearings and retaining rings according to this utility model.

[0019] As shown in the figure: 1. Transition component; 11. Transition head; 12. Small end; 13. Large end; 14. Insert rod; 2. Bevel gear body; 3. Positioning pin; 4. Spring; 5. Support component; 51. Base; 52. First mounting hole; 53. Mounting groove; 54. Second mounting hole; 55. Connecting end; 6. Plug; 7. Crimping component; 71. Press head; 72. Connecting rod; 73. Clear groove. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0021] The following description, in conjunction with the accompanying drawings, describes a tooling for pressing a small circular arc bevel gear bearing and a retaining ring according to an embodiment of the present invention.

[0022] This utility model provides a tooling for press-fitting small circular arc bevel gear bearings and retaining rings, which can be applied to the assembly of small circular arc bevel gears. It can effectively reduce the labor intensity of workers and ensure the consistency of assembly quality while improving the assembly efficiency of bearings and retaining rings.

[0023] like Figures 1-4 As shown in the figure, a tooling for pressing a small arc bevel gear bearing and retaining ring according to an embodiment of the present invention may include a transition component 1, a bevel gear body 2, a positioning pin 3, a spring 4, a support component 5, a plug 6, and a pressing component 7.

[0024] It should be noted that the transition component 1 described in the above embodiments is a single integrated structure.

[0025] The bevel gear body 2 is mounted on the transition component 1.

[0026] It should be noted that the bevel gear body 2 described in the above embodiments is a small circular arc bevel gear that needs to be assembled.

[0027] Support component 5 is positioned below transition component 1.

[0028] It is understood that the support component 5 described in the above embodiments serves to support the transition component 1.

[0029] The locating pin 3 and the spring 4 are respectively installed inside the support assembly 5, and the locating pin 3 passes through the support assembly 5 and extends into the interior of the bevel gear body 2.

[0030] It should be noted that the bottom end of the positioning pin 3 described in the above embodiment penetrates into the interior of the support component 5 and is connected to the spring 4.

[0031] Specifically, the positioning pin 3 further positions the bevel gear body 2 on the transition assembly 1, then the support assembly 5 installs the spring 4, and the spring 4 adjusts the positioning pin 3, thereby facilitating the ejection of the bevel gear body 2 from the support assembly 5.

[0032] The plug 6 is located at the bottom of the support component 5.

[0033] Understandably, the plug 6 is used to seal the bottom of the spring 4 inside the support assembly 5.

[0034] The crimping assembly 7 is mounted on the transition assembly 1.

[0035] It should be noted that the crimping assembly 7 described in the above embodiments is mounted on the cylinder (not shown in the figure).

[0036] Specifically, in actual operation, the relevant personnel first install the pressing component 7 onto the cylinder (not shown in the figure), then install the entire set of support component 5 onto the cylinder (not shown in the figure) seat, then place the bevel gear body 2 onto the positioning pin 3, then insert the transition component 1 into the spline hole of the bevel gear body 2, and then place the bearing 2, bearing 1 and retaining ring sequentially from the transition component 1. Finally, press the cylinder controller to press the bearing 2, bearing 1 and retaining ring onto the bevel gear body 2 at the same time, thereby realizing the installation of the small arc bevel gear bearing and retaining ring. This can effectively reduce the labor intensity of the workers and improve the assembly efficiency of bearings and retaining rings while ensuring the consistency of assembly quality.

[0037] In one embodiment of this utility model, such as Figure 2 As shown, the transition assembly 1 may include a transition head 11, a small end 12, a large end 13, and a plug 14.

[0038] It should be noted that the small end 12 and the large end 13 described in the above embodiments are integrated with the transition head 11.

[0039] The small end 12 and the large end 13 are respectively installed at both ends of the transition head 11, and the insertion rod 14 is set at the bottom end of the large end 13.

[0040] Specifically, the insert rod 14 is inserted into the bevel gear body 2 to fix the transition head 11 on the bevel gear body 2. Then, under the action of the small end 12, the bearing and retaining ring are conveniently fitted onto the transition head 11 and the large end 13. Under the pressing of the pressing assembly 7, the bearing and retaining ring are pressed, thereby achieving the effect of installing the bearing and retaining ring on the bevel gear body 2.

[0041] In one embodiment of this utility model, such as Figure 3 As shown, the support component 5 may include a base 51 and a connecting end 55.

[0042] It should be noted that the support component 5 described in the above embodiments is mounted on the cylinder (not shown in the figure) seat.

[0043] The base 51 has a first mounting hole 52 at its top end, a connecting end 55 at its bottom end, a second mounting hole 54 through its middle, and a mounting groove 53 inside the base 51, with both ends of the mounting groove 53 connected to the first mounting hole 52 and the second mounting hole 54 respectively.

[0044] Specifically, the base 51 is installed on the cylinder (not shown in the figure) seat under the action of the connecting end 55. Then, the positioning pin 3 is installed under the action of the first mounting hole 52, and the spring 4 is installed under the action of the mounting groove 53. The mounting groove 53 facilitates the sliding of the spring 4 in the base 51. Then, the plug 6 is installed under the action of the second mounting hole 54, thereby completing the limitation of the bottom end of the spring 4 on the base 51.

[0045] In one embodiment of this utility model, such as Figure 4 As shown, the crimping assembly 7 may include a crimping head 71 and a connecting rod 72.

[0046] It should be noted that the bottom diameter of the pressure head 71 described in the above embodiment is larger than the diameter of the bearing and the retaining ring.

[0047] The connecting rod 72 is installed at the top of the pressure head 71, and the bottom of the pressure head 71 is provided with a clearance groove 73 for the transition head 11 to be inserted.

[0048] It should be noted that the pressure head 71 is installed on the cylinder (not shown in the figure) under the action of the connecting rod 72. Then, under the pressure of the cylinder (not shown in the figure), the pressure head 71 completes the pressing of the bearing and the retaining ring, thereby achieving the effect of installing the bearing and the retaining ring on the bevel gear body 2. At the same time, under the action of the clearance groove 73, it is convenient for the transition head 11 to pass through, thereby avoiding the impact on the pressing of the pressure head 71.

[0049] In summary, the tooling for press-fitting small arc bevel gear bearings and retaining rings according to this utility model embodiment can effectively reduce the labor intensity of workers and ensure the consistency of assembly quality while improving the assembly efficiency of bearings and retaining rings.

[0050] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples and features described in this specification.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tooling for press-fitting a small circular arc bevel gear bearing and a retaining ring, characterized in that, It includes a transition assembly, a bevel gear body, a locating pin, a spring, a support assembly, a plug, and a crimping assembly, among which, The bevel gear body is sleeved on the transition assembly; The support component is disposed below the transition component; The locating pin and the spring are respectively installed inside the support assembly, and the locating pin passes through the support assembly and extends into the interior of the bevel gear body; The plug is located at the bottom end of the support assembly; The crimping assembly is disposed on the transition assembly.

2. The tooling for press-fitting a small circular arc bevel gear bearing and a retaining ring according to claim 1, characterized in that, The transition assembly includes a transition head, a small end, a large end, and a plug, wherein, The small end and the large end are respectively installed at both ends of the transition head, and the insertion rod is located at the bottom end of the large end.

3. The tooling for press-fitting a small circular arc bevel gear bearing and a retaining ring according to claim 1, characterized in that, The support assembly includes a base and a connecting end, wherein, The base has a first mounting hole at its top, the connecting end is installed at the bottom of the base, the connecting end has a second mounting hole through its middle, and the base has a mounting groove inside, with the two ends of the mounting groove connected to the first mounting hole and the second mounting hole respectively.

4. The tooling for press-fitting a small circular arc bevel gear bearing and a retaining ring according to claim 2, characterized in that, The crimping assembly includes a crimping head and a connecting rod, wherein... The connecting rod is installed at the top of the pressure head, and the bottom of the pressure head has a clearance groove for the transition head to be inserted.