Special fastening wrench for large-diameter shaft sleeve

Abstract

The fastening wrench special for the large-diameter shaft sleeve comprises a wrench body, the wrench body comprises a wrench handle, an arc-shaped hoop and a shaft sleeve clamping block, the wrench handle is arranged at one end of the wrench body, the arc-shaped hoop is arranged at the end, away from the wrench handle, of the wrench body, and the shaft sleeve clamping block is arranged at the other end of the wrench body. A shaft sleeve clamping block is arranged on the inner side of the end, away from the wrench handle, of the arc-shaped clamp, and a handle fulcrum is arranged on the inner side of the end, close to the wrench handle, of the arc-shaped clamp. The arc-shaped clamping hoop and the shaft sleeve clamping block are arranged and matched with the wrench handle and the handle fulcrum, the arc-shaped clamping hoop can be sleeved on the outer side of the large-diameter shaft sleeve firstly, then the shaft sleeve clamping block is clamped into the positioning groove of the large-diameter shaft sleeve, the handle body can be hung on the shaft sleeve, and then the handle body can be hung on the shaft sleeve by pressing down the wrench handle. A lever is formed by taking the position of the fulcrum of the handle as a contact supporting point, so that the shaft sleeve can rotate to realize a fastening effect, the operation is simple and convenient, and the shaft sleeve cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening tools, in particular to a special fastening wrench for large-diameter shaft sleeves. Background Technique

[0002] On the main shafts or rollers of some large-scale processing equipment, large-diameter threaded shaft sleeves are used for positioning and connection work in some connection structures.

[0003] When installing existing large-diameter shaft sleeves, special large-scale installation equipment can be used for installation. However, after the processing equipment has been running for some time, maintenance work needs to be carried out. At this time, the shaft sleeves need to be re-fastened. The existing fastening method is to cooperate a punch rod with a hammer. One end of the punch rod is abutted against the shaft sleeve, and then the shaft sleeve is rotated by hitting the punch rod with the hammer to complete the fastening work. Although the fastening of the shaft sleeve can be completed, the operation is rather troublesome and requires multiple hits. Holding the punch rod by hand is also somewhat dangerous, and the shaft sleeve is easily damaged when the force is too great, so there is room for further improvement. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a special fastening wrench for large-diameter shaft sleeves, which solves the above problems.

[0005] To achieve the above purpose, a special fastening wrench for large-diameter shaft sleeves is provided, including a wrench main body. The wrench main body includes a wrench handle, an arc-shaped clamp and a shaft sleeve clamping block. One end of the wrench main body is provided with a wrench handle, and the end of the wrench main body far from the wrench handle is provided with an arc-shaped clamp. The inner side of the end of the arc-shaped clamp far from the wrench handle is provided with a shaft sleeve clamping block. The inner side of the end of the arc-shaped clamp close to the wrench handle is provided with a handle fulcrum. The wrench handle, the arc-shaped clamp and the shaft sleeve clamping block are of an integrated structure, and steel side plates are fixedly connected to both sides of the wrench handle.

[0006] According to the special fastening wrench for large-diameter shaft sleeves, the shapes of the two steel side plates correspond to the side shape of the wrench handle.

[0007] According to the special fastening wrench for large-diameter shaft sleeves, the inner diameter of the arc-shaped clamp corresponds to the outer diameter of the large-diameter shaft sleeve.

[0008] According to the special fastening wrench for large-diameter shaft sleeves, the two steel side plates both protrude from the upper side edge of the wrench handle and are combined to form a receiving groove, and an extension handle is arranged inside the receiving groove.

[0009] According to the described special fastening wrench for a large-diameter shaft sleeve, a rotating pin is fixedly connected to one end of the receiving groove away from the arc-shaped clamp, and the rotating pin passes through the extension handle and is rotatably connected to the extension handle.

[0010] According to the described special fastening wrench for a large-diameter shaft sleeve, a fixed magnet is fixedly inlaid in the middle of the upper side of the wrench handle near one end of the arc-shaped clamp. The extension handle is made of a steel plate, and the position of the fixed magnet is opposite to the end position of the extension handle.

[0011] According to the described special fastening wrench for a large-diameter shaft sleeve, a convex platform is arranged on the outer side of one end of the extension handle away from the rotating pin.

[0012] The above solution has at least one of the following beneficial effects:

[0013] 1. The utility model is provided with an arc-shaped clamp and a shaft sleeve clamping block. In cooperation with the wrench handle and the handle fulcrum, the arc-shaped clamp can be first sleeved on the outer side of the large-diameter shaft sleeve, and then the shaft sleeve clamping block can be clamped into the positioning groove of the large-diameter shaft sleeve, so that the handle body can be suspended on the shaft sleeve. Then, by pressing down the wrench handle, a lever is formed with the position of the handle fulcrum as the contact support point, and the shaft sleeve can be rotated to achieve the fastening effect. The operation is simple and convenient, and the shaft sleeve will not be damaged, which strengthens the practicability of the device.

[0014] 2. The utility model can also set a receiving groove above the wrench handle by extending the two steel side plates. In cooperation with the rotating pin, an extendable handle that can be rotated and folded can be installed. When the fastening force is insufficient, the extendable handle can be opened to increase the length of the lever arm, effectively improving the fastening force and strengthening the practicability of the device.

[0015] 3. By setting a fixed magnet above the wrench handle, when the extension handle is folded into the receiving groove, the extension handle can be folded and fixed by the magnetic adsorption effect, preventing the extension handle from being randomly scattered. Moreover, the convex platform arranged at the end of the extension handle is convenient for applying force when the extension handle is unfolded, reducing the unfolding difficulty and preventing the situation where the adsorption force is too strong to be unfolded, which strengthens the practicability of the device.

[0016] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0018] Figure 1 It is a left three-dimensional structural schematic diagram of Embodiment 1 of the present utility model;

[0019] Figure 2Schematic diagram of the three - dimensional structure on the right side of the first embodiment of the present utility model;

[0020] Figure 3 Schematic diagram of the folding structure of the second embodiment of the present utility model;

[0021] Figure 4 Schematic diagram of the unfolded structure of the second embodiment of the present utility model.

[0022] Legend description:

[0023] 1. Wrench body; 2. Wrench handle; 3. Steel side plate; 4. Arc - shaped clamp; 5. Sleeve clamping block; 6. Handle fulcrum; 7. Accommodating groove; 8. Rotating pin; 9. Extension handle; 10. Fixed magnet. Specific implementation manners

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model. Embodiment

[0025] Refer to Figure 1 and Figure 2 According to the present utility model, an embodiment provides a special fastening wrench for large - diameter sleeves, which includes a wrench body 1. The wrench body 1 includes a wrench handle 2, an arc - shaped clamp 4 and a sleeve clamping block 5. A wrench handle 2 is provided at one end of the wrench body 1, and an arc - shaped clamp 4 is provided at the end of the wrench body 1 far from the wrench handle 2. A sleeve clamping block 5 is provided inside the end of the arc - shaped clamp 4 far from the wrench handle 2. A handle fulcrum 6 is provided inside the end of the arc - shaped clamp 4 close to the wrench handle 2. The wrench handle 2, the arc - shaped clamp 4 and the sleeve clamping block 5 are of an integrated structure. Steel side plates 3 are fixedly connected to both sides of the wrench handle 2, and the shapes of the two steel side plates 3 correspond to the side shape of the wrench handle 2. The arc - shaped clamp 4 and the sleeve clamping block 5 provided in the present utility model, in cooperation with the wrench handle 2 and the handle fulcrum 6, can first put the arc - shaped clamp 4 on the outside of the large - diameter sleeve, and then insert the sleeve clamping block 5 into the positioning groove of the large - diameter sleeve, so that the handle body 1 can be hung on the sleeve. Then, by pressing down the wrench handle 2, a lever is formed with the position of the handle fulcrum 6 as the contact support point, and the sleeve can be rotated to achieve the fastening effect. The operation is simple and convenient, reducing the operation risk and not damaging the sleeve. Embodiment

[0026] According to Figure 3 and Figure 4, The difference between this embodiment and the first embodiment is that a special fastening wrench for a large-diameter bushing includes a wrench body 1. The wrench body 1 includes a wrench handle 2, an arc-shaped clamp 4, and a bushing clamping block 5. One end of the wrench body 1 is provided with the wrench handle 2, and the end of the wrench body 1 far from the wrench handle 2 is provided with the arc-shaped clamp 4. The inner side of the end of the arc-shaped clamp 4 far from the wrench handle 2 is provided with the bushing clamping block 5. The inner side of the end of the arc-shaped clamp 4 close to the wrench handle 2 is provided with a handle fulcrum 6. The wrench handle 2, the arc-shaped clamp 4, and the bushing clamping block 5 are of an integrated structure;

[0027] Both sides of the wrench handle 2 are fixedly connected with steel side plates 3. The two steel side plates 3 both protrude from the upper side of the wrench handle 2 and are combined to form a receiving groove 7. An extension handle 9 is arranged inside the receiving groove 7. One end of the receiving groove 7 far from the arc-shaped clamp 4 is fixedly connected with a rotating pin 8. The rotating pin 8 passes through the extension handle 9 and is rotatably connected with the extension handle 9. The utility model can also set a receiving groove 7 above the wrench handle through the extension of the two steel side plates on both sides. Cooperating with the rotating pin 8, an extendable and foldable extension handle 9 can be installed. When the fastening force is insufficient, the extension handle 9 can be opened to increase the length of the lever arm and effectively improve the fastening force;

[0028] A fixed magnet 10 is fixedly inlaid in the middle of the upper side of the wrench handle 2 near one end of the arc-shaped clamp 4. The extension handle 9 is made of a steel plate. The position of the fixed magnet 10 corresponds to the end position of the extension handle 9. By setting the fixed magnet 10 above the wrench handle 2, when the extension handle 9 is folded into the receiving groove 7, the extension handle 9 can be folded and fixed by the magnetic adsorption effect to prevent the extension handle 9 from falling randomly. A convex platform is arranged on the outer side of the end of the extension handle 9 far from the rotating pin 8, which is convenient for applying force when the extension handle 9 is unfolded, reduces the unfolding difficulty, and prevents the situation that the adsorption force is too strong to be unfolded.

[0029] Working principle: The arc-shaped clamp 4 and the bushing clamping block 5 provided in the utility model, cooperating with the wrench handle 2 and the handle fulcrum 6, can first put the arc-shaped clamp 4 on the outer side of the large-diameter bushing, and then insert the bushing clamping block 5 into the positioning groove of the large-diameter bushing, so that the handle body 1 can be hung on the bushing. Then, by pressing down the wrench handle 2, a lever is formed with the position of the handle fulcrum 6 as the contact support point, and the bushing can be rotated to achieve the fastening effect. The operation is simple and convenient, reduces the operation risk, and will not damage the bushing.

[0030] The above has described the embodiments of the present utility model in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present utility model.

Claims

1. A special tightening wrench for a large diameter shaft sleeve, comprising a wrench body (1), characterized in that: The wrench body (1) comprises a wrench handle (2), an arc-shaped clamp (4) and a sleeve clamp block (5); the wrench handle (2) is arranged at one end of the wrench body (1); the arc-shaped clamp (4) is arranged at the end of the wrench body (1) away from the wrench handle (2); the sleeve clamp block (5) is arranged on the inner side of the end of the arc-shaped clamp (4) away from the wrench handle (2); a handle fulcrum (6) is arranged on the inner side of the end of the arc-shaped clamp (4) close to the wrench handle (2); the wrench handle (2), the arc-shaped clamp (4) and the sleeve clamp block (5) are an integrated structure; and steel side plates (3) are fixedly connected to both sides of the wrench handle (2).

2. A special tightening wrench for large diameter sleeves according to claim 1, characterized in that: The shapes of the two steel side plates (3) correspond to the side shapes of the wrench handle (2).

3. A special tightening wrench for large diameter sleeves according to claim 1, characterized in that: The inner diameter of the arc-shaped clamp (4) corresponds to the outer diameter of the large-diameter shaft sleeve.

4. A special tightening wrench for large diameter sleeves according to claim 1, characterized in that: The two steel side plates (3) are both protruding from the upper side of the wrench handle (2) and are combined to be provided with a receiving groove (7), and an extension handle (9) is provided inside the receiving groove (7).

5. A special tightening wrench for large diameter sleeves according to claim 4, characterized in that: A rotating pin (8) is fixedly connected to one end of the accommodating groove (7) away from the arc-shaped clamp (4); the rotating pin (8) passes through the extension handle (9) and is rotatably connected to the extension handle (9).

6. A special tightening wrench for large diameter sleeves according to claim 5, characterized in that: A fixed magnet (10) is fixedly embedded in the middle of one end of the upper side of the wrench handle (2) close to the arc-shaped clamp (4); the extension handle (9) is a steel plate; the position of the fixed magnet (10) corresponds to the end position of the extension handle (9).

7. A special tightening wrench for large diameter sleeves according to claim 6, characterized in that: A boss is arranged on the outer side of one end of the extension handle (9) away from the rotating pin (8).

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