Wrench for over-twisting wheel bearing

Abstract

The utility model provides a wrench for an over-twisting wheel bearing, which is used for an over-twisting wheel mounting component and comprises a bit and a handle, a bit body is divided into a locking nut embedding part and a bearing embedding part, a bulge is arranged on the locking nut embedding part, the over-twisting wheel mounting component comprises a bearing, an over-twisting wheel and a locking nut, internal threads are arranged on the inner surface of the top end of the over-twisting wheel, and the bearing embedding part is connected with the bearing. An outer thread is arranged on the outer surface of the locking nut, a notch is formed in the inner surface of the locking nut, the outer thread is in threaded connection with the inner thread, the bearing embedding part is embedded in the bearing, the protrusion is embedded in the notch, the handle is rotated to drive the locking nut embedding part to rotate, the protrusion drives the notch to rotate, and the locking nut moves towards the bearing end till the locking nut abuts against the bearing. And the bearing is fixed in the mounting hole. According to the wrench, the locking nut embedding part is embedded with the center of the locking nut, and the bearing embedding part is embedded with the center of the bearing, so that thread slipping between an internal thread and an external thread is reduced, and the utilization rate of the over-twisting wheel and the locking nut is improved.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and more specifically, to a wrench for over-twist wheel bearings. Background Technology

[0002] The overtwisting wheel in the steel cord twisting workshop is equipped with a bearing. The bearing needs to be replaced frequently, but replacing the bearing is time-consuming and laborious, and replacing it with a regular wrench will cause serious damage to the lock nut.

[0003] The above problems urgently need to be solved, so this utility model provides a wrench for over-twisting wheel bearings. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wrench for over-twisting wheel bearings, which can quickly replace bearings and cause less damage to the lock nut.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A wrench for overtwisting wheel bearings is provided for disassembling and installing bearings in overtwisting wheels. The wrench includes a bit and a handle. The bit body is divided into a locking nut fitting part and a bearing fitting part. The locking nut fitting part is provided with a protrusion. The overtwisting wheel is also provided with a locking nut. The inner surface of the top of the overtwisting wheel is provided with internal threads, and the outer surface of the locking nut is provided with external threads. The inner surface of the locking nut is provided with a groove. The external threads are threadedly connected to the internal threads. The bearing fitting part is fitted into the bearing. The protrusion is fitted into the groove. Rotating the handle causes the locking nut fitting part to rotate. The protrusion causes the groove to rotate. The locking nut moves towards the bearing end until the locking nut and the bearing abut against each other, fixing the bearing in the mounting hole.

[0006] In this embodiment, specifically, the bit body is connected to the bit, and the lower end of the bit is divided into the locking nut fitting part and the bearing fitting part.

[0007] In this embodiment, specifically, there are two protrusions, and the two protrusions are symmetrical with respect to the center of the bit.

[0008] In this embodiment, specifically, the number of protrusions is set to an even number, and the protrusions are symmetrical with respect to the center of the bit.

[0009] In this embodiment, specifically, a telescopic rod is provided at the end of the bit body away from the bit, and the telescopic rod is telescopically installed inside the handle.

[0010] In this embodiment, specifically, the outer surface of the overtwist wheel is provided with a groove, and the inside of the overtwist wheel is provided with a mounting hole. The mounting hole is divided into a bearing mounting part and a locking nut mounting part, and the inner diameter of the bearing mounting part is smaller than the inner diameter of the locking nut mounting part.

[0011] In this embodiment, specifically, the bearing includes an inner ring and an outer ring, the inner ring abutting against the bearing fitting portion, and the outer ring abutting against the bearing mounting portion.

[0012] In this embodiment, specifically, the number of slots is equal to the number of protrusions, and there are two slots, which are symmetrical about the center of the locking nut.

[0013] In this embodiment, specifically, the number of slots is equal to the number of protrusions, there is an even number of slots, and the slots are symmetrical about the center of the locking nut.

[0014] The beneficial effects of this utility model are as follows: When the handle is turned, the locking nut engagement part rotates, the protrusion drives the groove to rotate, and the locking nut moves towards the bearing end until the locking nut and the bearing abut against each other, fixing the bearing in the mounting hole. When it is necessary to replace a faulty bearing, the bearing can be replaced by removing the locking nut with a wrench, with minimal damage to the locking nut. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] In the picture: Figure 1 This is a front view of a wrench for an over-twisting wheel bearing according to the present invention;

[0017] Figure 2 for Figure 1 A bottom view of a wrench for an over-twisting wheel bearing;

[0018] Figure 3 for Figure 1 Right view of a wrench for a twisting wheel bearing;

[0019] Figure 4 for Figure 1 Diagram showing the usage status of a center wrench;

[0020] Figure 5 for Figure 4 Top view of the locking nut.

[0021] 10. Wrench; 11. Screwdriver bit; 111. Locking nut fitting part; 1111. Protrusion; 112. Bearing fitting part; 12. Handle; 121. Telescopic rod; 20. Over-twisting wheel; 21. Wheel groove; 22. Mounting hole; 221. Bearing mounting part; 222. Locking nut mounting part; 2221. Internal thread; 30. Locking nut; 31. External thread; 32. Groove; 40. Bearing; 41. Inner ring; 42. Outer ring. Detailed Implementation

[0022] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] This utility model provides a wrench for overtwisting wheel bearings, used to fix the bearing 40 in the overtwisting wheel 20.

[0024] like Figure 1-3 As shown, the wrench 10 has an approximate "L" shaped structure. The wrench 10 includes a bit 11 and a handle 12. The bit 11 is heat-treated to make it more wear-resistant.

[0025] The bit 11 body is connected to the handle 12. The lower end of the bit 11 is divided into a locking nut fitting part 111 and a bearing fitting part 112. The locking nut fitting part 111 is provided with a protrusion 1111.

[0026] In this embodiment, the locking nut fitting part 111 is provided with two protrusions 1111, the protrusions 1111 are semi-circular protrusion structures, and the two protrusions 1111 are symmetrical with respect to the center of the bit 11.

[0027] In some other embodiments, the protrusions 1111 may also be an even number, and the protrusions 1111 are arranged symmetrically with respect to the center of the bit 11.

[0028] A telescopic rod 121 is provided at the end of the handle 12 away from the bit 11. The telescopic rod 121 is telescopically installed inside the handle 12.

[0029] like Figure 4-5 As shown, a locking nut 30 is also installed in the overtwist wheel 20, and the bearing 40 is fixed in the overtwist wheel 20 along with the locking nut 30.

[0030] The overtwisting wheel 20 has a ring-shaped structure. Multiple grooves 21 are evenly recessed inward on the outer surface of the overtwisting wheel 20. An installation hole 22 is opened inside the overtwisting wheel 20. The installation hole 22 is divided into a bearing mounting part 221 and a locking nut mounting part 222. The surface of the locking nut mounting part 222 is evenly provided with internal threads 2221. The inner diameter of the bearing mounting part 221 is smaller than the inner diameter of the locking nut mounting part 222.

[0031] The locking nut 30 has a ring-shaped structure. The outer surface of the locking nut 30 is uniformly provided with external threads 31, which are threadedly connected with internal threads 2221. The inner surface of the locking nut 30 is provided with a groove 32.

[0032] In this embodiment, the locking nut 30 has two slots 32, which are semi-circular groove structures, and the two slots 32 are symmetrical with respect to the center of the locking nut 30.

[0033] The number of protrusions 1111 is the same as the number of slots 32, and the positions of the protrusions 1111 correspond to the positions of the slots 32.

[0034] In some other embodiments, the number of slots 32 may also be even, and the slots 32 are arranged in pairs relative to the center of the locking nut 30.

[0035] The bearing 40 includes an inner ring 41 and an outer ring 42, which can rotate relative to each other.

[0036] The working process of a wrench for over-twisting wheel bearings according to this utility model:

[0037] like Figure 2 As shown, the bearing 40 is fitted into the bearing mounting part 221 inside the over-twisting wheel 20, and the locking nut 30 is fitted into the locking nut mounting part 222 inside the over-twisting wheel 20. The external thread 31 of the locking nut 30 is threaded onto the internal thread 2221 of the locking nut mounting part 222. The wrench 10 is fitted into the bearing 40 and the locking nut 30. The bearing fitting part 112 is fitted into the inner ring 41, and the protrusion 1111 is fitted into the groove 32.

[0038] At this time, the wrench 10 is engaged in the locking nut 30. Rotating the handle 12 causes the locking nut engagement part 111 to rotate, which in turn causes the locking nut 30 to rotate. The locking nut 30 moves toward one end of the bearing 40 until the locking nut 30 abuts against the bearing 40, thus completing the fixed installation of the bearing 40.

[0039] The beneficial effects of this utility model of a wrench for over-twisted wheel bearings are as follows:

[0040] 1. When it is necessary to replace the faulty bearing 40, the bearing 40 can be replaced simply by removing the locking nut 30 with a wrench 10, which is simple and convenient.

[0041] 2. An external thread 31 is provided on the outer ring of the locking nut 30 to connect with the internal thread 2221 of the overtwisting wheel 20, so that the bearing 40 is fixed more stably.

[0042] 3. The locking nut engagement part 111 is engaged with the locking nut 30 at the center, and the bearing engagement part 112 is engaged with the bearing 40 at the center. This reduces the slippage between the inner thread 2221 and the outer thread 31, improves the utilization rate of the over-twisting wheel 20 and the locking nut 30, and greatly reduces maintenance costs, maintenance difficulty and maintenance time.

[0043] 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 this application. 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.

[0044] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0045] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A spanner for bearing of overtwist wheel, for dismounting and mounting bearing (40) in overtwist wheel (20), characterized in that: The wrench (10) comprises a head (11) and a handle (12), the head (11) is divided into a locking nut embedding part (111) and a bearing embedding part (112), the locking nut embedding part (111) is provided with a protrusion (1111), the over-twist wheel (20) is further provided with a locking nut (30), the inner surface of the top end of the over-twist wheel (20) is provided with an inner thread (2221), the over-twist wheel (20) is internally provided with a mounting hole (22), the outer surface of the locking nut (30) is provided with an outer thread (31), the inner surface of the locking nut (30) is internally provided with a notch (32), the outer thread (31) is threadedly connected with the inner thread (2221), the bearing embedding part (112) is embedded in the bearing (40), the protrusion (1111) is embedded in the notch (32), the handle (12) is rotated to drive the locking nut embedding part (111) to rotate, the protrusion (1111) drives the notch (32) to rotate, the locking nut (30) is moved to the bearing (40) end to the locking nut (30) and the bearing (40) are opposite to each other, the bearing (40) is fixed in the mounting hole (22).

2. A spanner for overtwist wheel bearings according to claim 1, characterised in that: The head (11) is connected with the head (11) body, and the lower end of the head (11) is divided into the locking nut embedding part (111) and the bearing embedding part (112).

3. A spanner for overtwist wheel bearings according to claim 1, characterised in that: The protrusions (1111) are two, and the two protrusions (1111) are symmetrically arranged with respect to the center of the head (11).

4. A spanner for overtwist wheel bearings according to claim 1, characterised in that: The protrusions (1111) are even, and the protrusions (1111) are symmetrically arranged with respect to the center of the head (11).

5. A spanner for overtwist wheel bearings according to claim 1, characterised in that: The head (11) body is provided with a telescopic rod (121) away from one end of the head (11), and the telescopic rod (121) is telescopically installed in the handle (12).

6. A spanner for overtwist wheel bearings according to claim 1, characterised in that: The over-twist wheel (20) is provided with a wheel groove (21), the mounting hole (22) is divided into a bearing mounting part (221) and a locking nut mounting part (222), the inner diameter of the bearing mounting part (221) is smaller than that of the locking nut mounting part (222).

7. A spanner for overtwist wheel bearings according to claim 6, characterised in that: The bearing (40) comprises an inner ring (41) and an outer ring (42), the inner ring (41) abuts against the bearing embedding part (112), and the outer ring (42) abuts against the bearing mounting part (221).

8. A spanner for overtwist wheel bearings according to claim 3, characterised in that: The number of notches (32) is equal to that of protrusions (1111), the notches (32) are two, and the notches (32) are symmetrically arranged with respect to the center of the locking nut (30).

9. A spanner for overtwist wheel bearings according to claim 4, characterised in that: The number of notches (32) is equal to that of protrusions (1111), the notches (32) are even, and the notches (32) are symmetrically arranged with respect to the center of the locking nut (30).

Images