Positioning device enabling shaft roller to be rapidly clamped and expanded

Abstract

The utility model discloses a positioning device enabling a shaft roller to be rapidly clamped and expanded, and relates to the technical field of shaft roller installation. The pay-off shaft comprises a pay-off shaft body and a shaft groove formed in the outer side of the pay-off shaft body, and further comprises a shaft roller body which is connected to the outer surface of the pay-off shaft body in a sleeving mode and arranged on the outer side of the shaft groove; the locking and clamping mechanism is connected to the outer surface of the pay-off shaft body in a sleeving manner; and the threaded spacer sleeve body is arranged at one end of the pay-off shaft body. The position of the elastic piece body can be limited through the arranged threaded spacer sleeve body so that the elastic piece body can only expand outwards, when the shaft roller body is connected to the outer side of the elastic piece body in a sleeving mode, the arranged reset spring can push the locking protruding block on the outer side of the elastic piece body to be embedded into the inner wall of the shaft roller body, and then the position of the shaft roller body can be rapidly limited; due to the fact that the multiple sets of reset springs are arranged, the shaft roller body can be rapidly clamped and locked, the eccentric condition of the shaft roller body can be avoided, and the mounting efficiency of the shaft roller body is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaft roller installation, in particular to a device for quickly clamping and expanding and tightening shaft rollers. Background Art

[0002] The shaft is a cylindrical object that goes through the middle of a bearing, wheel, or gear, but a few are square. The shaft is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. It is usually a metal rod, and each section can have different diameters. The parts that make rotating motion in the machine are installed on the shaft, and the roller is a cylindrical rotating object on the machine, which rotates quickly like a wheel and has a uniform wheel hub.

[0003] The existing method requires that the roller be sleeved on the outside of the shaft and the position of the roller be limited by a positioning mechanism, and the positioning mechanism often clamps and positions the shaft roller electrically or pneumatically. Although the positioning mechanism can limit the position of the roller, the disassembly steps are relatively cumbersome, and the cost is high and it is not easy to maintain and service later, which leads to poor locking effect of the shaft and roller. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a device for quickly clamping and tightening a shaft roller, which can effectively solve the problems of the prior art.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a device for quickly clamping and tightening a shaft roller, comprising a pay-off shaft body and a shaft groove arranged outside the pay-off shaft body, and also comprising:

[0007] The shaft roller body is sleeved on the outer surface of the pay-off shaft body and is arranged on the outer side of the shaft groove;

[0008] The locking and clamping mechanism is sleeved on the outer surface of the pay-off shaft body and is used to limit the position of the shaft roller body;

[0009] The threaded stopper is arranged at one end of the pay-off shaft and is used to limit the position of the locking clamping mechanism.

[0010] Furthermore, the shaft grooves are provided in three groups and are evenly distributed along the outer surface of the pay-off shaft.

[0011] Furthermore, the locking and clamping mechanism includes a limiting groove, a return spring and a spring body, the limiting groove is symmetrically opened on the left and right sides of the shaft groove, the return spring is arranged inside the limiting groove, and the spring body is fixed to one end of the return spring away from the limiting groove.

[0012] Furthermore, a positioning sleeve is provided at one end of the outer surface of the pay-off shaft, a connecting clip is fixed at one end of the spring body close to the positioning sleeve, and the cross-section of the connecting clip is an "L"-shaped structure, a spacer body is provided on one side of the positioning sleeve, and the spacer body is clamped on the outside of the connecting clip.

[0013] Furthermore, a locking protrusion is fixed on the outer surface of the spring body, and the cross section of the locking protrusion is a trapezoidal structure, and the locking protrusion is slidably embedded in the inner wall of the shaft roller body.

[0014] Furthermore, the outer surface of the end threaded body is threadedly connected to a threaded stopper sleeve, and an end of the inner wall of the threaded stopper sleeve close to the spring sheet body is not provided with a thread and is clamped with the spring sheet body.

[0015] The utility model has the following beneficial effects:

[0016] The utility model provides a spacer sleeve body that can be sleeved on the outer side of the pay-off shaft body, which not only facilitates the subsequent limitation of the position of the spring sheet body, but also can restrain and limit the shaft roller body to avoid the shaft roller body from being offset. Then, the provided threaded stop sleeve body can limit the position of the spring sheet body so that it can only expand outward. When the shaft roller body is sleeved on the outer side of the spring sheet body, the provided return spring can push the locking protrusion on the outer side of the spring sheet body to embed into the inner wall of the shaft roller body, so that the position of the shaft roller body can be quickly limited. Since multiple groups of return springs are provided, the shaft roller body can be clamped and locked quickly, and the eccentricity of the shaft roller body can be avoided, thereby further improving the installation efficiency of the shaft roller body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a top view schematic diagram of the device for quick clamping and expansion positioning of shaft rollers according to the utility model;

[0019] Figure 2 This is a left side schematic diagram of the utility model for the quick clamping and expansion positioning device of the shaft roller;

[0020] Figure 3 For this utility model Figure 2 Middle AA section view.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Pay-off shaft body; 2. Shaft groove; 3. Positioning sleeve; 4. Spacer sleeve body; 5. Limiting groove; 6. Reset spring; 7. Shrapnel body; 8. Connecting clamp; 9. Locking protrusion; 10. End thread body; 11. Threaded sleeve body; 12. Shaft roller body. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-3 As shown, the utility model is a device for quickly clamping and tightening a shaft roller, comprising a pay-off shaft body 1 and a shaft groove 2 provided on the outside of the pay-off shaft body 1, and also comprising:

[0025] The shaft grooves 2 are provided in three groups and are evenly distributed along the outer surface of the pay-off shaft body 1. The shaft grooves 2 are evenly arranged on the outer side of the pay-off shaft body 1, so that the subsequent connection of the locking and clamping mechanism package can be facilitated; the shaft roller body 12 is sleeved on the outer surface of the pay-off shaft body 1 and is arranged on the outer side of the shaft groove 2; the locking and clamping mechanism is sleeved on the outer surface of the pay-off shaft body 1, and is used to limit the position of the shaft roller body 12; the locking and clamping mechanism includes a limiting groove 5, a reset spring 6 and a spring body 7, the limiting grooves 5 are symmetrically provided on the left and right sides of the shaft groove 2, the reset spring 6 is arranged inside the limiting groove 5, and the spring body 7 is fixed to the end of the reset spring 6 away from the limiting groove 5. The position of the reset spring 6 can be limited by the set limiting groove 5, so that the reset spring 6 can be prevented from being offset, and then, one end of the reset spring 6 can be connected to the spring body 7, so that the subsequent locking and limiting of the shaft roller body 12 can be facilitated;

[0026] A positioning stop sleeve 3 is provided at one end of the outer surface of the pay-off shaft body 1, and a connecting clamp 8 is fixed at one end of the spring body 7 close to the positioning stop sleeve 3, and the cross-section of the connecting clamp 8 is an "L"-shaped structure, and a spacer sleeve body 4 is provided on one side of the positioning stop sleeve 3, and the spacer sleeve body 4 is clamped on the outside of the connecting clamp 8, and the spacer sleeve body 4 can be clamped on the outside of the connecting clamp 8, so that the position of the spring body 7 can be limited, and the spring body 7 can be prevented from being offset, and a locking protrusion 9 is fixed on the outer surface of the spring body 7, and the cross-section of the locking protrusion 9 is a trapezoidal structure, and the locking protrusion 9 is slidably embedded in the inner wall of the shaft roller body 12, and the locking protrusion 9 can be matched with the inner wall structure of the shaft roller body 12, so that the position of the shaft roller body 12 can be limited later, and the shaft roller body 12 can be prevented from being offset;

[0027] A threaded stopper sleeve 11 is arranged at one end of the pay-off shaft body 1 and is used to limit the position of the locking and clamping mechanism. The outer surface of the end threaded body 10 is threadedly connected to the threaded stopper sleeve 11, and the inner wall of the threaded stopper sleeve 11 is close to the end of the spring body 7 without a thread and is clamped with the spring body 7. The threaded stopper sleeve 11 can be connected to the end threaded body 10, and one end of the threaded stopper sleeve 11 is clamped with the spring body 7, which can further limit the position of the spring body 7 and ensure the stability of the spring body 7 sliding up and down.

[0028] Working principle: First, the positioning device is provided with a pay-off shaft body 1, 3 groups of shaft grooves 2, 3 groups of spring bodies 7, a positioning stopper sleeve 3, a spacer sleeve body 4, each spring sheet has 2 return springs 6, a threaded stopper sleeve body 11 and a shaft roller body 12;

[0029] Then, connect the positioning stop sleeve 3 with the pay-off shaft body 1, and put the return spring 6 into the limiting groove 5 on the inner side of the shaft groove 2, then make the spring body 7 contact and press the return spring 6, and put it into the shaft groove 2, then, insert the spacer sleeve body 4 into the pay-off shaft body 1 from the right end of the pay-off shaft body 1 and wrap the three spring bodies 7 until they are tightly connected with the positioning stop sleeve 3, and the inner hole of the spacer sleeve body 4 is connected with the connecting clamp 8 on the left side of the spring body 7, so that the spring body 7 can be freely compressed and bounced in the spacer sleeve body 4 and the shaft groove 2 according to the elastic force of the return spring 6. It should be noted that the right side of the inner hole of the threaded stop sleeve body 11 is threaded, and one end of the pay-off shaft body 1 is provided with an end threaded body 10, so that the threaded stop sleeve body 11 can be connected with the end threaded body 10 at one end of the pay-off shaft body 1. At the same time, since there is one side without a thread at the left end of the inner hole of the threaded stop sleeve body 11 , and there is a small gap with the right end of the spring body 7 so that the spring can be freely compressed and bounced in the threaded stop sleeve 11 and the shaft groove 2. The above steps are assembled. At this time, the spring body 7 is in a bounced state in the shaft groove 2 due to the action of the reset spring 6, and the reset spring 6 will not be bounced away due to the spacer sleeve 4 and the threaded stop sleeve 11. At this time, the operator can hold the shaft roller body 12 and directly insert the shaft roller body 12 into the pay-off shaft body 1 from the right end of the pay-off shaft body 1. After the inner hole of the shaft roller body 12 is combined with the three bounced spring bodies 7, the three spring bodies 7 are pressed down under the action of thrust, and the shaft roller body 12 is pushed to the right end of the spacer sleeve 4 to complete the rapid clamping and expansion positioning, and ensure that the center of the shaft roller is concentric with the center of the pay-off shaft, and the locking protrusion 9 provided can fit with the inner wall structure of the shaft roller body 12, which can facilitate the subsequent position of the shaft roller body 12. Limitation.

[0030] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A device for quickly clamping and tightening a shaft roller, comprising a pay-off shaft body (1) and a shaft groove (2) provided on the outside of the pay-off shaft body (1), characterized in that: Also includes: The shaft roller body (12) is sleeved on the outer surface of the pay-off shaft body (1) and is arranged outside the shaft groove (2); A locking clamping mechanism, sleeved on the outer surface of the pay-off shaft body (1), and used to limit the position of the shaft roller body (12); A threaded stopper sleeve (11) is arranged at one end of the pay-off shaft (1) and is used to limit the position of the locking and clamping mechanism.

2. The device for quick clamping and tightening of shaft rollers according to claim 1, characterized in that: The shaft grooves (2) are provided in three groups and are evenly distributed along the outer surface of the pay-off shaft body (1).

3. The device for quick clamping and expansion positioning of shaft rollers according to claim 1, characterized in that: The locking and clamping mechanism comprises a limiting groove (5), a return spring (6) and a spring body (7); the limiting groove (5) is symmetrically arranged on the left and right sides of the shaft groove (2); the return spring (6) is arranged inside the limiting groove (5); and the spring body (7) is fixed to an end of the return spring (6) away from the limiting groove (5).

4. The device for quick clamping and tightening the shaft roller according to claim 3, characterized in that: A positioning sleeve (3) is provided at one end of the outer surface of the pay-off shaft body (1); a connecting clamp (8) is fixed to one end of the spring body (7) close to the positioning sleeve (3); and the cross-section of the connecting clamp (8) is an "L"-shaped structure; a spacer body (4) is provided on one side of the positioning sleeve (3), and the spacer body (4) is clamped on the outside of the connecting clamp (8).

5. The device for quick clamping and tightening the shaft roller according to claim 4, characterized in that: A locking protrusion (9) is fixed on the outer surface of the spring body (7), and the cross section of the locking protrusion (9) is a trapezoidal structure. The locking protrusion (9) is slidably embedded in the inner wall of the shaft roller body (12).

6. The device for quick clamping and tightening the shaft roller according to claim 4, characterized in that: The threaded stopper sleeve (11) is threadedly connected to the outer surface of the end threaded body (10), and an end of the inner wall of the threaded stopper sleeve (11) close to the spring body (7) is not provided with a thread and is clamped with the spring body (7).

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