Nylon belt pulley

Abstract

The nylon belt pulley relates to the field of belt pulleys and comprises a main shaft, the surface of the main shaft is sleeved with a positioning assembly, the front side of the surface of the main shaft is sleeved with a belt pulley body, and the top and the bottom of an inner cavity of the belt pulley body are both fixedly connected with positioning pins. Positioning grooves matched with the positioning pins for use are formed in the top and the bottom of the surface of the main shaft, and a screw rod is arranged on the left side of the belt pulley body. Through the arrangement of the positioning assembly, the positioning pin, the positioning groove, the screw rod, the threaded sleeve, the mounting clamping pin, the fixing groove, the fixing ring, the mounting plate, the bolt, the first positioning teeth and the second positioning teeth, the belt pulley body can be fixed through the cooperation of the positioning pin and the positioning groove; and the two installation clamping pins are matched with the fixing grooves to achieve installation and fixation of the belt wheel body, auxiliary tools such as a hammer do not need to be used for installing and disassembling the belt wheel body, and use of workers is facilitated.

Description

Technical Field

[0001] The present application relates to the field of pulleys, and in particular to a nylon pulley. Background Art

[0002] A pulley is a mechanical part that connects two rotating shafts and transmits power. It is usually made of metal or plastic and is widely used in various mechanical equipment. The pulley transmits power and generates movement through the belt. It is an indispensable key component in mechanical equipment. Pulleys play an important role in industries such as industry, agriculture, and transportation.

[0003] The existing nylon pulley is a pulley made of nylon material. Compared with the pulley made of cast iron, the nylon pulley has the characteristics of low production cost, high production line efficiency, simple use, strong and durable, not easy to wear, and long service life. However, the current nylon pulley has the problem of being difficult to install and disassemble. It is necessary to use a fixing pin to lock the main shaft and the pulley, and then use a hammer to hammer the pulley into the surface of the main shaft. The whole process is time-consuming and labor-intensive. The pulley may be damaged during the installation process, which is not conducive to use. Summary of the Invention

[0004] The purpose of this application is to provide a nylon pulley that has the advantages of quick and convenient installation and disassembly, no need to use a fixing pin to position the pulley and then use a hammer to install it, shortening the installation and disassembly time and improving the work efficiency of the staff.

[0005] To achieve the above-mentioned purpose, the present application also provides a nylon pulley, including a main shaft, the surface of the main shaft is sleeved with a positioning assembly, the front side of the main shaft surface is sleeved with a pulley body, the top and bottom of the inner cavity of the pulley body are fixedly connected with positioning pins, the top and bottom of the main shaft surface are provided with positioning grooves for cooperating with the positioning pins, a screw is provided on the left side of the pulley body, the right side of the screw passes through the inner cavity of the pulley body, both sides of the screw surface are threadedly connected with threaded sleeves, the rear side of the threaded sleeve is fixedly connected with an installation pin, and both sides of the main shaft are provided with fixing grooves for cooperating with the installation pin.

[0006] Preferably, the positioning assembly includes a fixing ring, both sides of the rear side of the fixing ring are fixedly connected with mounting plates, the opposite sides of the two mounting plates are fixedly connected to the main shaft by bolts, the front side of the fixing ring is fixedly connected with a first positioning tooth, the rear side of the pulley body is fixedly connected with a second positioning tooth, and the front side of the first positioning tooth is engaged with the second positioning tooth.

[0007] Preferably, the mounting plate is L-shaped, a mounting hole for use with a bolt is provided on a side of the mounting plate away from the main shaft, and threaded holes for use with the bolt are provided on both sides of the main shaft.

[0008] Preferably, a sliding rod is fixedly connected to the bottom between the two sides of the inner cavity of the pulley body, a sliding sleeve is slidably connected to both sides of the surface of the sliding rod, and the top of the sliding sleeve is fixedly connected to the threaded sleeve.

[0009] Preferably, the right side of the screw is movably connected to the inner wall of the pulley body through a bearing, the left side of the screw is fixedly connected to a knob, and the threads on both sides of the screw surface are opposite.

[0010] Preferably, a slope is provided on the side of the mounting pin close to the main shaft, and an extrusion slope for use with the mounting pin is provided on the front side of the inner cavity of the fixing groove.

[0011] Preferably, a through hole for use with a screw rod is opened on the left side of the pulley body, and opposite sides of the two positioning pins are embedded in the inner wall of the pulley body.

[0012] Compared with the prior art, the beneficial effects of this invention are:

[0013] 1. By providing a positioning assembly, a positioning pin, a positioning groove, a screw, a threaded sleeve, a mounting bayonet, a fixing groove, a fixing ring, a mounting plate, a bolt, a first positioning tooth, and a second positioning tooth, the pulley body can be fixed by cooperating with the positioning pin and the positioning groove, and then the two mounting bayonet pins are used to cooperate with the fixing groove to achieve installation and fixation of the pulley body. There is no need to use auxiliary tools such as hammers to install and remove the pulley body, which is convenient for workers to use;

[0014] 2. By arranging the sliding rod and the sliding sleeve, the two threaded sleeves can be limited to prevent them from rotating with the screw, and by arranging the bearing, the smoothness of the screw rotation process can be increased, and by arranging the knob, it is convenient for the staff to rotate the screw, and by arranging the screws with opposite threads on both sides of the surface, the two threaded sleeves can be controlled to move to the opposite side or the opposite side at the same time. By arranging the slope, the rear side of the pulley body can be tightly fitted with the fixing ring by cooperating with the extrusion slope in the fixing groove. By arranging the positioning pin embedded in the inner wall of the pulley body, its stability can be increased, and the fixing ring is installed on the surface of the main shaft by two bolts and the mounting plate. When the pulley body is installed, the first positioning tooth and the second positioning tooth can be meshed, thereby realizing the positioning function of the pulley body and preventing it from rotating during the installation process, which is convenient for the staff to install it, and by arranging the mounting hole, the mounting plate and the fixing ring can be conveniently installed and fixed by the bolt, and by arranging the threaded hole, the bolt can be conveniently connected to the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a nylon pulley provided by the present application;

[0016] Figure 2 This is a rear view of the three-dimensional structure of a nylon pulley provided by the present application;

[0017] Figure 3 This is a cross-sectional view of a nylon pulley provided in the present application;

[0018] Figure 4 This is a cross-sectional view of the main shaft of a nylon pulley provided by the present application;

[0019] Figure 5 This is a schematic diagram of a positioning assembly and a pulley body of a nylon pulley provided in this application.

[0020] In the figure: 1. Main shaft; 2. Positioning assembly; 3. Pulley body; 4. Positioning pin; 5. Positioning groove; 6. Screw; 7. Threaded sleeve; 8. Mounting pin; 9. Fixing groove; 201. Fixing ring; 202. Mounting plate; 203. Bolt; 204. First positioning tooth; 205. Second positioning tooth; 10. Sliding rod; 11. Sliding sleeve; 12. Knob. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings. Terms such as "upper", "above", "lower", "below", "first end", "second end", "one end", "the other end" used in this application to express spatial relative positions are used to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings for the purpose of ease of explanation. Terms of spatial relative position may be intended to include different orientations of the device in use or work other than the orientation shown in the figures. For example, if the device in the figure is turned over, the unit described as being "below" or "below" other units or features will be "above" other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein are interpreted accordingly.

[0022] Furthermore, the terms "installed," "disposed," "provided with," "connected," "slidingly connected," "fixed," and "socketed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of this application.

[0024] See also Figure 1-5 The present invention provides a technical solution: a nylon pulley, comprising a main shaft 1, a positioning assembly 2 is sleeved on the surface of the main shaft 1, a pulley body 3 is sleeved on the front side of the surface of the main shaft 1, the top and bottom of the inner cavity of the pulley body 3 are fixedly connected with positioning pins 4, and the top and bottom of the surface of the main shaft 1 are provided with positioning grooves 5 for cooperating with the positioning pin 4, a screw 6 is provided on the left side of the pulley body 3, and the right side of the screw 6 passes through the inner cavity of the pulley body 3, and threaded sleeves 7 are threadedly connected on both sides of the surface of the screw 6, and a mounting pin 8 is fixedly connected to the rear side of the threaded sleeve 7, and fixing grooves 9 for cooperating with the mounting pin 8 are provided on both sides of the main shaft 1.

[0025] Example 1: By setting a positioning component 2, a positioning pin 4, a positioning groove 5, a screw 6, a threaded sleeve 7, an installation pin 8, a fixing groove 9, a fixing ring 201, a mounting plate 202, a bolt 203, a first positioning tooth 204 and a second positioning tooth 205, the pulley body 3 can be fixed by cooperating with the positioning pin 4 and the positioning groove 5, and then the two installation pins 8 and the fixing groove 9 are used to achieve the installation and fixation of the pulley body 3. There is no need to use auxiliary tools such as hammers to install and disassemble the pulley body 3, which is convenient for the staff to use.

[0026] In one possible implementation, see Figure 1-5, a nylon pulley, the bottom between the two sides of the inner cavity of the pulley body 3 is fixedly connected with a slide rod 10, and both sides of the surface of the slide rod 10 are slidably connected with a slide sleeve 11, and the top of the slide sleeve 11 is fixedly connected to the threaded sleeve 7, and the right side of the screw 6 is movably connected to the inner wall of the pulley body 3 through a bearing, and the left side of the screw 6 is fixedly connected with a knob 12. The threads on both sides of the surface of the screw 6 are opposite, and a slope is provided on the side of the mounting pin 8 close to the main shaft 1, and an extrusion slope for cooperating with the mounting pin 8 is provided on the front side of the inner cavity of the fixing groove 9. A through hole for cooperating with the screw 6 is provided on the left side of the pulley body 3, and the opposite sides of the two locating pins 4 are embedded in the inner wall of the pulley body 3.

[0027] Embodiment 2: By setting a sliding rod 10 and a sliding sleeve 11, the two threaded sleeves 7 can be limited to prevent them from rotating with the screw 6. By setting a bearing, the stability of the screw 6 during rotation can be increased. By setting a knob 12, it is convenient for the staff to rotate the screw 6. By setting the screw 6 with opposite threads on both sides of the surface, the two threaded sleeves 7 can be controlled to move to the opposite side or the opposite side at the same time. By setting a slope, it can cooperate with the extrusion slope in the fixing groove 9 to make the rear side of the pulley body 3 fit tightly with the fixing ring 201. By setting a positioning pin 4 embedded in the inner wall of the pulley body 3, its stability can be increased.

[0028] On the basis of Example 1, this embodiment describes the positioning assembly 2 in Example 1. The positioning assembly 2 includes a fixing ring 201. Both sides of the rear side of the fixing ring 201 are fixedly connected to the mounting plates 202. The opposite sides of the two mounting plates 202 are fixedly connected to the main shaft 1 by bolts 203. The front side of the fixing ring 201 is fixedly connected to the first positioning tooth 204. The rear side of the pulley body 3 is fixedly connected to the second positioning tooth 205. The front side of the first positioning tooth 204 is engaged with the second positioning tooth 205. The shape of the mounting plate 202 is L-shaped. The side of the mounting plate 202 away from the main shaft 1 is provided with a bolt 203 for use in conjunction with the main shaft 1. The mounting holes of the main shaft 1 are provided with threaded holes for use with bolts 203 on both sides. The fixing ring 201 is installed on the surface of the main shaft 1 through two bolts 203 and the mounting plate 202. When the pulley body 3 is installed, the first positioning tooth 204 and the second positioning tooth 205 can be engaged, thereby realizing the positioning function of the pulley body 3 and preventing it from rotating during the installation process, making it convenient for the staff to install it. By setting the mounting holes, it is convenient for the bolts 203 to install and fix the mounting plate 202 and the fixing ring 201, and by setting the threaded holes, it is convenient to connect the bolts 203 to the main shaft 1.

[0029] Working principle: The fixing ring 201 is installed on the surface of the main shaft 1 through the cooperation of the bolt 203 and the mounting plate 202, and then the pulley body 3 is sleeved on the surface of the main shaft 1, so that the second positioning tooth 205 on the rear side of the pulley body 3 and the first positioning tooth 204 on the front side of the fixing ring 201 are meshed with each other, thereby improving the stability of the pulley body 3 during installation. At this time, the positioning pin 4 is located in the inner cavity of the positioning groove 5, and the cooperation between the two prevents the pulley body 3 from rotating during installation. Then, the knob 12 is turned, and the knob 12 cooperates with the screw 6 to drive the threaded sleeve 7 and the mounting screw 6 to rotate. The mounting pin 8 moves, and the two mounting pins 8 move into the inner cavity of the fixing groove 9. The slope on one side of the mounting pin 8 and the inclined surface inside the fixing groove 9 squeeze each other, so that the pulley body 3 fits tightly with the fixing ring 201 backward, thereby improving the stability of the installation and fixation of the pulley body 3. After the knob 12 is rotated until it can no longer rotate, the installation of the pulley body 3 is completed. When disassembly is required, the above steps can be reversed to complete the disassembly of the pulley body 3. The entire disassembly and assembly process is quick and convenient without the need for auxiliary tools, thereby improving the work efficiency of the staff.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nylon pulley, characterized in that: The invention comprises a main shaft (1), a positioning assembly (2) is sleeved on the surface of the main shaft (1), a pulley body (3) is sleeved on the front side of the surface of the main shaft (1), the top and bottom of the inner cavity of the pulley body (3) are fixedly connected with positioning pins (4), the top and bottom of the surface of the main shaft (1) are provided with positioning grooves (5) used in conjunction with the positioning pins (4), a screw rod (6) is provided on the left side of the pulley body (3), the right side of the screw rod (6) passes through the inner cavity of the pulley body (3), both sides of the surface of the screw rod (6) are threadedly connected with threaded sleeves (7), the rear side of the threaded sleeve (7) is fixedly connected with a mounting pin (8), and both sides of the main shaft (1) are provided with fixing grooves (9) used in conjunction with the mounting pin (8).

2. A nylon pulley according to claim 1, characterized in that: The positioning assembly (2) comprises a fixing ring (201), both sides of the rear side of the fixing ring (201) are fixedly connected to mounting plates (202), the opposite sides of the two mounting plates (202) are fixedly connected to the main shaft (1) via bolts (203), the front side of the fixing ring (201) is fixedly connected to a first positioning tooth (204), the rear side of the pulley body (3) is fixedly connected to a second positioning tooth (205), and the front side of the first positioning tooth (204) is engaged with the second positioning tooth (205).

3. A nylon pulley according to claim 2, characterized in that: The mounting plate (202) is L-shaped, and a mounting hole for use with a bolt (203) is provided on a side of the mounting plate (202) away from the main shaft (1), and threaded holes for use with the bolt (203) are provided on both sides of the main shaft (1).

4. A nylon pulley according to claim 1, characterized in that: A sliding rod (10) is fixedly connected to the bottom between the two sides of the inner cavity of the pulley body (3), and sliding sleeves (11) are slidably connected to both sides of the surface of the sliding rod (10), and the top of the sliding sleeve (11) is fixedly connected to the threaded sleeve (7).

5. The nylon pulley according to claim 1, characterized in that: The right side of the screw rod (6) is movably connected to the inner wall of the pulley body (3) through a bearing, the left side of the screw rod (6) is fixedly connected to a knob (12), and the threads on both sides of the surface of the screw rod (6) are opposite.

6. The nylon pulley according to claim 1, characterized in that: A slope is provided on the side of the mounting bayonet (8) close to the main shaft (1), and an extrusion slope for use with the mounting bayonet (8) is provided on the front side of the inner cavity of the fixing groove (9).

7. The nylon pulley according to claim 1, characterized in that: A through hole for use with the screw rod (6) is provided on the left side of the pulley body (3), and opposite sides of the two positioning pins (4) are embedded in the inner wall of the pulley body (3).

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