A wear-resistant nylon pulley

Abstract

The utility model discloses a kind of wear-resistant nylon pulleys, including pulley main body, the outer circumferential surface of pulley main body is equipped with recess, the recess inside is equipped with the positioning groove that is evenly distributed around the axis of pulley main body, each wear block is detachably embedded and fixed in corresponding one positioning groove, the side abutting surface of the bottom of each wear block is respectively pasted on the four side inner walls in the positioning groove;The top of wear block is concave cambered surface;The axis of pulley main body is equipped with center hole, bearing interference fit is connected into the center hole, the means of the utility model is that multiple detachable wear blocks and evenly distributed along the circumferential direction equiangularly are embedded and fixed in the outer recess of pulley body made of conventional industrial nylon material, so that rope and each wear block directly contact, while significantly improve wear resistance, and then effectively prolong service life under the same working condition.

Description

Technical Field

[0001] This utility model belongs to the field of pulley technology, and specifically relates to a wear-resistant nylon pulley. Background Technology

[0002] The pulleys used at the front of the boom on most modern truck cranes are generally made of cast iron or cast steel. While they have a high load-bearing capacity, their biggest drawback is their weight, which causes significant wear on the wire rope. The lighter the pulley at the front of the boom, the less wear on the wire rope. To overcome these drawbacks, using MC nylon pulleys can reduce the weight of the boom and boom head by 70%, improving production efficiency, enhancing lifting capacity and overall machine performance, and facilitating maintenance and disassembly.

[0003] However, nylon pulleys made from pure nylon material generally have poor wear resistance. To address this shortcoming, some companies have adopted a coating method. However, the coating is prone to damage or peeling during use, resulting in inconvenient maintenance and premature failure. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant nylon pulley to solve the above-mentioned problems.

[0005] The technical solution adopted by this utility model is: a wear-resistant nylon pulley, including a pulley body made of industrial nylon material, a groove on the outer circumferential surface of the pulley body, and a positioning groove evenly distributed around the axis of the pulley body inside the groove. Each wear-resistant block is detachably embedded and fixed in a corresponding positioning groove, and the side abutting surfaces of the bottom of each wear-resistant block are respectively attached to the four inner walls of the positioning groove.

[0006] The top of the wear-resistant block is a concave arc surface, and the concave arc surface group of the top of the multiple wear-resistant blocks is located on a circle centered on the axis of the pulley body;

[0007] The pulley body has a central hole at its axis, and the bearing is interference-fitted into the central hole.

[0008] Furthermore, the wear-resistant block is made of wear-resistant metal material.

[0009] Furthermore, the wear-resistant block is connected to the positioning groove by screws, and the positioning groove is provided with screw holes that are connected to the screws.

[0010] Furthermore, the head of the screw is submerged in the concave arc surface on the top of the wear-resistant block.

[0011] Furthermore, the groove includes a groove bottom and two side walls on both sides, and the front and rear sides of the wear-resistant block are in close contact with the side walls.

[0012] Furthermore, each of the wear-resistant blocks also has an arc-shaped mating surface at its bottom that cooperates with the bottom of the groove.

[0013] Furthermore, each of the wear-resistant blocks is also provided with a step that is in contact with the bottom of the groove.

[0014] Furthermore, the number of wear-resistant blocks is 3-6.

[0015] Beneficial effects:

[0016] The present invention involves embedding and fixing multiple detachable wear-resistant blocks evenly distributed at equal angles along the circumference in the outer groove of the pulley body made of conventional industrial nylon material. This allows the rope to directly contact each wear-resistant block, significantly improving wear resistance and thus effectively extending the service life under the same working conditions.

[0017] The wear-resistant blocks are easy to disassemble, facilitating later maintenance and replacement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a schematic diagram of the pulley body structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the wear-resistant block structure of this utility model;

[0023] Figure 6 This is a front view of the wear-resistant block of this utility model;

[0024] in:

[0025] 1-Pulley body;

[0026] 2-Abrasion-resistant blocks;

[0027] 3-Screws;

[0028] 4-Bearings;

[0029] 1a-groove, 1b-positioning groove, 1c-screw hole, 1d-center hole;

[0030] 1aa - bottom of the tank, 1ab - sidewall;

[0031] 2a-Abutting surface, 2b-Step, 2c-Concave arc surface, 2d-Arc mating surface. Detailed Implementation

[0032] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0033] Please see Figures 1 to 4 A wear-resistant nylon pulley includes a pulley body 1 made of industrial nylon material. The outer circumferential surface of the pulley body 1 is provided with a groove 1a. The groove 1a is provided with positioning grooves 1b evenly distributed around the axis of the pulley body 1. Multiple wear-resistant blocks 2 are detachably embedded and fixed in a corresponding positioning groove 1b. In this embodiment, four wear-resistant blocks 2 are used, preferably three to six. The wear-resistant blocks 2 are made of wear-resistant metal material. A central hole 1d is provided at the axis of the pulley body 1, and a bearing 4 is interference-fitted into the central hole 1d.

[0034] The present invention involves embedding and fixing multiple detachable wear-resistant blocks 2 in the outer groove 1a of the pulley body 1 made of conventional industrial nylon material. These blocks are evenly distributed at equal angles along the circumference, allowing the rope to directly contact each wear-resistant block 2. This significantly improves wear resistance and effectively extends the service life under the same working conditions.

[0035] A connection method between a wear-resistant block 2 and a positioning groove 1b is provided, wherein the wear-resistant block 2 is connected to the positioning groove 1b by a screw 3, and the positioning groove 1b is provided with a screw hole 1c connected to the screw 3.

[0036] The screws 3 are used for connection, and the wear-resistant block 2 is easy to disassemble, which facilitates later maintenance and replacement.

[0037] Please see Figures 5 to 6 In order to improve the strength of the load, the sides of the bottom of each wear-resistant block 2 are respectively attached to the four inner walls of the positioning groove 1b. The four inner walls of the positioning groove 1b are used to fix the position of the wear-resistant block 2 and reduce the stress on the screw 3 when the rope passes through.

[0038] The groove 1a includes a groove bottom 1aa and two side walls 1ab. The front and rear sides of the wear-resistant block 2 are in close contact with the side walls 1ab to prevent debris from falling into the gap between the wear-resistant block 2 and the side walls 1ab and damaging the nylon pulley body 1.

[0039] The top of the wear-resistant block 2 is a concave arc surface 2c, and the four concave arc surfaces 2c are arranged on a circle centered on the axis of the pulley body 1.

[0040] The purpose of setting the concave arc surface 2c is to facilitate the connection of the rope, reduce the impact of the rope on the side wall 1ab, and make the rope pass through the concave arc surface 2c as much as possible.

[0041] To facilitate the passage of the rope, the head of the screw 3 is submerged in the concave arc surface 2c on the top of the wear-resistant block 2.

[0042] For better fit, the bottom of each wear-resistant block 2 is also formed with an arc-shaped mating surface 2d that mates with the groove bottom 1aa. Please refer to [link / reference]. Figure 6 .

[0043] In order to increase the thickness of the wear-resistant block 2, each of the wear-resistant blocks 2 is also provided with a step 2b that is in contact with the bottom of the groove 1aa, which can increase the thickness of the wear-resistant block 2 and thus increase its strength.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A wear-resistant nylon pulley, characterized in that, The pulley body is made of industrial nylon material. The outer circumferential surface of the pulley body is provided with a groove. The groove is provided with positioning grooves evenly distributed around the axis of the pulley body. Each wear-resistant block is detachably embedded and fixed in a corresponding positioning groove. The side abutting surfaces of the bottom of each wear-resistant block are respectively attached to the four inner walls of the positioning groove. The top of the wear-resistant block is a concave arc surface, and the concave arc surface group of the top of the multiple wear-resistant blocks is located on a circle centered on the axis of the pulley body; The pulley body has a central hole at its axis, and the bearing is interference-fitted into the central hole.

2. The wear-resistant nylon pulley according to claim 1, characterized in that, The wear-resistant block is made of wear-resistant metal material.

3. The wear-resistant nylon pulley according to claim 2, characterized in that, The wear-resistant block is connected to the positioning groove by screws, and the positioning groove is provided with screw holes that are connected to the screws.

4. The wear-resistant nylon pulley according to claim 3, characterized in that, The head of the screw is submerged in the concave arc surface on the top of the wear-resistant block.

5. A wear-resistant nylon pulley according to claim 2, characterized in that, The groove includes a groove bottom and two side walls on both sides, and the front and rear sides of the wear-resistant block are in close contact with the side walls.

6. The wear-resistant nylon pulley according to claim 5, characterized in that, The bottom of each wear-resistant block also has an arc-shaped mating surface that cooperates with the bottom of the groove.

7. A wear-resistant nylon pulley according to claim 6, characterized in that, Each of the wear-resistant blocks is further provided with a step that is in contact with the bottom of the groove.

8. The wear-resistant nylon pulley according to claim 1, characterized in that, The number of wear-resistant blocks is 3-6.

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