Torsion shaft bearing knocking tool

Abstract

The utility model discloses a torsion shaft bearing knocking tool which is used for installing a bearing on a torsion shaft of a double twisting machine and comprises a pipe fitting, one end of the pipe fitting is a knocking end, the other end of the pipe fitting is a contact end used for making contact with the end face of the bearing, and the contact end is provided with an annular groove. And an inner ring contacted with the end surface of the bearing inner ring and an outer ring contacted with the end surface of the bearing outer ring are respectively formed on the inner side and the outer side of the annular groove. The inner ring and the outer ring are correspondingly pressed on the inner ring and the outer ring of the bearing, the problem that lubricating oil between the inner ring and the outer ring of the bearing splashes due to knocking vibration in the knocking process can be solved through the annular groove between the inner ring and the outer ring, and pollution to the surrounding environment of the torsion shaft is avoided; the axial direction of the knocking device is relatively consistent with the axial direction of the bearing, and the bearing is stressed in the circumferential direction simultaneously, so that the knocking direction and the stress are relatively consistent.

Description

Technical Field

[0001] This utility model relates to the installation of torsion shaft bearings on a double twisting machine, specifically to a torsion shaft bearing striking fixture. Background Technology

[0002] For the installation of torsion shaft bearings, the traditional method involves placing the bearing onto the torsion shaft and then directly tapping the bearing on the side of the torsion shaft with a simple metal rod or hammer in a circumferential manner. The upper section of the torsion shaft is a stepped shaft, specifically, the uppermost section is thinner and the next thicker section is slightly thicker, serving as the bearing mounting position. This method has several drawbacks:

[0003] 1. Uneven striking force: During the striking process, the bearing needs to be struck gradually along its circumference. The force is not applied at the same time along the circumference, which leads to uneven force on the bearing during installation. This may damage the bearing raceway, balls or cage, reducing the bearing's service life and performance.

[0004] 2. Difficult to control precisely: It is difficult to ensure that the direction and force of each tap are in accordance with the requirements on the same horizontal plane (due to multiple taps on the same horizontal plane in the circumferential direction), which may cause the bearing installation position to be inaccurate and affect the operating accuracy of the entire mechanical system.

[0005] 3. High labor intensity: For operators, repeatedly striking in the same horizontal plane in a circumferential direction is physically demanding and results in low work efficiency. Summary of the Invention

[0006] This utility model addresses the problems existing in the prior art by proposing a hammering fixture for torsion shaft bearings. The inner and outer rings are pressed onto the inner and outer rings of the bearing, respectively. The annular groove between the inner and outer rings prevents the lubricating oil between the inner and outer rings from splashing due to the vibration during hammering, thus avoiding pollution of the environment around the torsion shaft. The fitting is sleeved on the torsion shaft during hammering, and its axial direction is relatively consistent with the bearing's axial direction. Furthermore, the bearing is subjected to force in the circumferential direction simultaneously, ensuring that the direction and force of the hammering are relatively consistent. Moreover, multiple hammerings are not required on the same horizontal plane, improving work efficiency.

[0007] The technical solution adopted by this utility model is: a torsion shaft bearing striking fixture for installing the bearing on the torsion shaft of a double twisting machine, including a tube, one end of which is a striking end and the other end is a contact end for contacting the end face of the bearing. The contact end has an annular groove, and the inner and outer sides of the annular groove respectively form an inner ring for contacting the end face of the inner ring of the bearing and an outer ring for contacting the end face of the outer ring of the bearing.

[0008] Based on the above scheme, as a preferred option, the striking end has a closed structure.

[0009] Based on the above scheme, as a preferred option, the distance from the striking end to the contact end face inside the pipe fitting is at least not less than the distance from the installation position of the bearing on the torsion shaft to the top of the torsion shaft.

[0010] Based on the above scheme, as a preferred option, the material of the pipe fitting is nylon.

[0011] Based on the above scheme, as a preferred option, the inner diameter of the pipe fittings is consistent, and the outer diameter of the pipe fittings includes a first diameter segment and a second diameter segment, the length of the first diameter segment being not less than the length required for hand gripping.

[0012] Based on the above scheme, as a preferred option, the radial width of the annular groove is not less than the interval between the inner ring and the outer ring of the bearing.

[0013] Based on the above scheme, as a preferred option, the thickness of the inner ring and the outer ring shall not be less than two-thirds of the thickness of the corresponding bearing inner ring and bearing outer ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The inner and outer rings are pressed onto the inner and outer rings of the bearing respectively. The annular groove between the inner and outer rings can prevent the lubricating oil between the inner and outer rings of the bearing from splashing due to the impact vibration during the hammering process, thus avoiding pollution to the environment around the torsion shaft.

[0016] During the hammering process, the pipe fitting is fitted onto the torsion shaft, and its axial direction is relatively consistent with that of the bearing. The bearing is simultaneously subjected to force in the circumferential direction, which can ensure that the direction of hammering and the force are relatively consistent.

[0017] Nylon has advantages such as high strength, multifunctionality, good wear resistance, strong moisture resistance, chemical corrosion resistance, lightweight, easy processing, corrosion resistance, oil resistance, and heat resistance. It can play a buffering role when struck, so that the striking force is transmitted to the bearing more evenly, reducing direct impact damage to the bearing.

[0018] When the distance between the striking end (inner end face of the striking end) and the contact end face (lower end face) inside the fitting is equal to the distance from the upper end face of the bearing to the top of the torsion shaft (upper end face), the fitting acts as a buffer, allowing the striking force to be transmitted to the bearing more evenly and reducing direct impact damage to the bearing. In the other direction, it acts as a positioning tool to ensure accurate installation. Attached Figure Description

[0019] Figure 1 This is a 3D structural diagram of a type 1 pipe fitting;

[0020] Figure 2 This is a schematic diagram of the bottom structure of a type 1 pipe fitting;

[0021] Figure 3This is a side view of a type 1 pipe fitting;

[0022] Figure 4 This is a 3D view of the pipe fitting structure of type two;

[0023] Figure 5 This is a schematic diagram of the bottom structure of a type II pipe fitting;

[0024] Figure 6 This is a side view of a type 2 pipe fitting; Detailed Implementation

[0025] The present invention will be further described below through embodiments, but the scope of the present invention is not limited thereto.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] like Figure 1-6 As shown, a torsion shaft bearing striking fixture is used to install the bearing on the torsion shaft of a double twisting machine. It includes a tube, one end of which is a striking end and the other end is a contact end for contacting the end face of the bearing. The contact end has an annular groove, and the inner and outer sides of the annular groove respectively form an inner ring for contacting the end face of the inner ring of the bearing and an outer ring for contacting the end face of the outer ring of the bearing.

[0028] The striking end has a closed structure.

[0029] The fittings are made of nylon, which has advantages such as high strength, multi-functionality, good wear resistance, strong moisture resistance, chemical corrosion resistance, light weight, easy processing, corrosion resistance, oil resistance, and heat resistance. It can play a buffering role when struck, so that the striking force is transmitted to the bearing more evenly, reducing direct impact damage to the bearing.

[0030] The distance from the striking end to the contact end face inside the fitting should be at least as great as the distance from the bearing's mounting position on the torsion shaft to the top of the torsion shaft, preferably equal. When the distance between the striking end (inner end face of the striking end) and the contact end face (lower end face) inside the fitting is equal to the distance from the upper end face of the bearing to the top of the torsion shaft (upper end face), the fitting plays a buffering role on the one hand, allowing the striking force to be transmitted to the bearing more evenly, reducing direct impact damage to the bearing, and on the other hand, it plays a positioning role, ensuring the accuracy of the installation position.

[0031] The inner diameter of the pipe fittings is consistent, and the outer diameter of the pipe fittings includes a first diameter section and a second diameter section. The length of the first diameter section is not less than the length required for hand gripping.

[0032] The radial width of the annular groove is not less than the interval between the inner ring and the outer ring of the bearing.

[0033] The thickness of the inner and outer rings should not be less than two-thirds of the thickness of the corresponding bearing inner and outer rings. Generally, it is advisable to make the thickness of the inner and outer rings the same as that of the bearing inner and outer rings to increase the contact area and ensure that the impact force is evenly distributed.

[0034] When in use, place the bearing on the upper end of the torsion shaft, and press the inner and outer rings of the fitting into the bearing's inner and outer rings respectively. Use a hammer or stick to tap the upper end of the fitting, i.e. the tapping end, to push the bearing down to the installation position, thus completing the installation.

[0035] During the striking process, the inner and outer rings press against the inner and outer rings of the bearing, respectively. The annular groove between the inner and outer rings prevents the lubricating oil between the inner and outer rings from splashing due to the striking vibration, thus avoiding contamination of the environment around the torsion shaft. Furthermore, the fitting is fitted onto the torsion shaft during the striking process, and its axial direction is relatively consistent with that of the bearing, ensuring a relatively consistent striking direction.

[0036] More specifically, there are two types of pipe fittings, type one as follows: Figure 1-3 As shown, the inner diameter of the fitting is uniform. The outer diameter of the fitting includes a first diameter segment 1 and a second diameter segment 2. The length of the first diameter segment is not less than the length required for hand gripping. The total length of the fitting is 150mm. The length of the first diameter segment is approximately two-thirds of this length, usually the length required for hand gripping. For a fitting of 150mm, the length of the first diameter segment is approximately 95-100mm. The second diameter segment is 50-55mm. The thickness of the inner ring 4 and outer ring 3 is 4mm. The width of the annular groove between the inner and outer rings is 22mm, and the depth of the annular groove is 8mm. These dimensions can be slightly adjusted. For example, if the outer diameter of the first diameter segment is 88mm and the outer diameter of the second diameter segment is 72mm, and the inner diameter is 51mm, the second diameter segment is thicker and less convenient to hold. Reducing the outer diameter of the first diameter segment makes it easier to hold.

[0037] Type 2, such as Figure 4-6 As shown, the inner and outer diameters of the pipe fitting are the same, and its length is about 100mm.

[0038] Both types of fittings are used to install bearings on a torsion shaft. Type 1 is used to install the lower bearing on the torsion shaft, and Type 2 is used to install the upper bearing on the torsion shaft. "Above" and "below" refer to the relative position of the two bearings.

[0039] It should be noted that the embodiments described above are only for explaining the present invention and do not constitute any limitation on the present invention. The present invention has been described with reference to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory terms, not limiting terms. Modifications can be made to the present invention within the scope of the claims, and revisions can be made to the present invention without departing from the scope and spirit of the present invention. Although the present invention described herein relates to specific methods, materials, and embodiments, it does not mean that the present invention is limited to the specific examples disclosed herein; on the contrary, the present invention can be extended to all other methods and applications with the same function.

Claims

1. A twist shaft bearing knock-on tool for installing a bearing on a twist shaft of a two-for-one twister, characterized by, The fitting includes a pipe, one end of which is a striking end, and the other end is a contact end for contacting the end face of the bearing. The contact end has an annular groove, and the inner and outer sides of the annular groove form an inner ring for contacting the end face of the inner ring of the bearing and an outer ring for contacting the end face of the outer ring of the bearing, respectively. The radial width of the annular groove is not less than the interval between the inner ring and the outer ring of the bearing.

2. The knock tool for a torsion axle bearing as set forth in claim 1, wherein, The striking end has a closed structure.

3. The knock tool for a torsion axle bearing as set forth in claim 1, wherein, The distance from the striking end to the contact end face inside the pipe fitting shall be at least as small as the distance from the bearing mounting position on the torsion shaft to the top of the torsion shaft.

4. The knock tool for a torsion axle bearing as set forth in claim 1, wherein, The fittings are made of nylon.

5. The knock tool for a torsion axle bearing as set forth in claim 1, wherein, The inner diameter of the pipe fittings is consistent, and the outer diameter of the pipe fittings includes a first diameter section and a second diameter section. The length of the first diameter section is not less than the length required for hand gripping.

6. The knock tool for a torsion axle bearing as set forth in claim 1, wherein, The thickness of the inner and outer rings shall not be less than two-thirds of the thickness of the corresponding bearing inner and outer rings.

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