Multi-wedge belt pulley convenient to assemble and disassemble

Abstract

A multi-wedge belt pulley convenient to assemble and disassemble comprises a connecting bolt, a nut and a single-wedge belt pulley body. One side end of the middle of the single-wedge belt pulley body is provided with an internal threaded hole, and the other outer side end is provided with a solenoid; internal threaded holes A are distributed in each single-wedge belt pulley body, and every two adjacent single-wedge belt pulley bodies are installed together through threads; the multiple connecting bolts are located in the multiple inner threaded holes A of the multiple single-wedge belt pulley bodies respectively, the multiple nuts are screwed into the side ends of the multiple connecting bolts respectively, and the multiple single-wedge belt pulley bodies are installed together. According to the requirements of output power of a motor and load of driven equipment, or when one damaged single-wedge belt pulley body on a power shaft of the motor and the driven equipment is replaced, a plurality of intact single-wedge belt pulley bodies are combined together through threads and then are fixed through bolts and nuts; due to the fact that a plurality of single-wedge belt pulley bodies can be separated and combined, on the basis that power can be effectively transmitted, use cost is saved, and resources can be effectively utilized.

Description

Technical Field

[0001] This utility model relates to the field of belt pulley technology, and in particular to a multi-ply belt pulley that can be easily assembled and disassembled. Background Technology

[0002] Pulleys, belonging to the category of disc-shaped parts, are generally manufactured using casting and forging processes. Metal pulleys include steel, aluminum, and other materials. Pulleys are primarily used for transmitting power in equipment. Multi-wedge pulleys have equidistant longitudinal wedges on their surface, which tightly engage with grooves of the same shape. Their working surface is the wedge side. Utilizing the properties of the rubber material of the transmission belt, this increases the contact area between the belt and the groove, resulting in more uniform pressure distribution and improved transmission efficiency. While existing multi-ribbed pulleys meet power transmission needs to some extent, their structure limits their ability to be disassembled and reassembled. This means that because the number of grooves is fixed, they can only be used for power transmission in specific equipment. When the number of grooves (wedge-shaped sides) between the motor and the driven equipment is relatively small, making power transmission ineffective (e.g., after improvements to the driven equipment or an increased load, the multi-ribbed pulleys on the motor shaft and the driven equipment's power input shaft, with their relatively small number of grooves, become soft and unable to transmit power effectively due to heat and overload), it is necessary to replace them with multi-ribbed pulleys with a relatively large number of grooves. Conversely, if, due to design reasons, the power transmitted by the motor and the driven equipment is not large, and a multi-ribbed pulley with a relatively large number of grooves is used, the multi-ribbed pulley becomes heavy (resulting in greater vibration) and more expensive. Finally, if one groove (including the wedge-shaped side) of an existing multi-ribbed pulley is damaged, a new multi-ribbed pulley must be replaced, resulting in relatively high operating costs and hindering efficient resource utilization. Utility Model Content

[0003] To overcome the drawbacks of existing multi-wedge pulleys due to structural limitations, as described in the background art, this utility model provides a single-wedge pulley body with a single groove. When users need to transmit power or replace a damaged single-wedge pulley body, they can easily combine multiple single-wedge pulley bodies together, effectively transmitting power while saving on usage costs, thus making efficient use of resources. This multi-wedge pulley is easy to assemble and disassemble.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A multi-pulley that can be easily assembled and disassembled includes connecting bolts, nuts, and single-pulley bodies. Multiple single-pulley bodies, connecting bolts, and nuts are provided. Each single-pulley body has an internally threaded fixing hole on one side of its middle portion and an externally threaded connecting thread on the other side of its middle portion. Each single-pulley body has multiple fixing holes A. Between any two adjacent single-pulley bodies, the thread of one single-pulley body and the fixing hole of the other single-pulley body are threaded together. The multiple fixing holes A of the multiple single-pulley bodies are laterally aligned in a straight line. Multiple connecting bolts are laterally located within the multiple fixing holes A of the multiple single-pulley bodies. Multiple nuts are screwed into one side of the multiple connecting bolts, thus fixing the multiple single-pulley bodies together.

[0006] Furthermore, among the multiple single-pitch pulley bodies, one of the single-pitch pulley bodies does not have a connecting screw at the other outer end of the middle part.

[0007] Furthermore, the length of the screw tube is the same as the length of the internal thread fixing hole, and the inner diameter of the screw tube is the same as the inner diameter of the fixing hole.

[0008] Furthermore, the outer diameter of the bolt head of the connecting bolt and the outer diameter of the nut are larger than the inner diameter of the fixing hole A.

[0009] Furthermore, each single-pulley pulley body has a lateral limiting groove in the middle, and the limiting grooves of multiple single-pulley pulley bodies are in a straight line laterally.

[0010] Furthermore, a locating pin is fixedly installed in the lateral interference fit between the limiting groove of the multiple single-pulley bodies and the limiting groove of the equipment power shaft.

[0011] Compared with existing technologies, the advantages of this invention are as follows: This invention addresses the power output requirements of a motor (not limited to motors, but also including internal combustion engines, etc.) and the load needs of the driven equipment, or when replacing a damaged single-pulley body on the power input shaft of a motor or driven equipment. Multiple intact single-pulley bodies are threaded together and then secured with bolts and nuts. Because multiple single-pulley bodies can be separated and combined, power transmission is effective, and usage costs are reduced accordingly, allowing for efficient resource utilization. In summary, this invention has good application prospects. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the split-type three-dimensional structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the left-side planar structure of this utility model. Detailed Implementation

[0016] Figure 1 , 2 As shown in Figure 3, the multi-pulley that can be easily assembled and disassembled includes a connecting bolt 1, a nut 2, and a single-pulley body 3 with a single pulley groove; there are multiple single-pulley bodies 3, connecting bolts 1, and nuts 2; each single-pulley body 3 has an internally threaded fixing hole 31 in the middle left end, and a connecting threaded tube 32 with external threads is integrally formed in the middle right outer end; each single-pulley body 3 has three transversely penetrating fixing holes A33 evenly distributed around its perimeter; multiple single-pulley pulleys... In the pulley body 3, each pair of adjacent single-pitch pulley bodies 3 are threaded together, with the right-side threaded tube 32 of the left-end single-pitch pulley body 3 and the left-side fixing hole 31 of the right-end single-pitch pulley body 3 being threaded together; the three fixing holes A33 of the multiple single-pitch pulley bodies 3 are respectively aligned in a straight line laterally, and three connecting bolts 1 are respectively inserted into the three fixing holes A33 of the multiple single-pitch pulley bodies 3 from left to right laterally, and three nuts 2 are respectively screwed into the right end of the three connecting bolts 1 to fix the multiple single-pitch pulley bodies 2 together.

[0017] Figure 1 , 2 As shown in Figure 3, among the multiple single-pitch pulley bodies, the rightmost single-pitch pulley body 3 does not have a connecting threaded tube 32 on its right side. The length of the threaded tube 32 is the same as the length of the internal thread fixing hole 31, and the inner diameter of the threaded tube 32 of each single-pitch pulley body is the same as the inner diameter of the internal thread fixing hole 31. The outer diameter of the bolt head on the left end of the connecting bolt 1 and the outer diameter of the nut 2 are larger than the inner diameter of the fixing hole A33. Each single-pitch pulley body has a rectangular limiting groove 34 in the middle of its transverse direction, and the limiting grooves 34 of the multiple single-pitch pulley bodies are arranged in a straight line. A locating pin 4 is fixedly installed with a transverse interference fit between the limiting grooves 34 of the multiple single-pitch pulley bodies and the limiting grooves of the motor shaft and the power input shaft of the driven equipment. The length of the locating pin 4 is the same as the transverse length of the multiple single-pitch pulley bodies.

[0018] Figure 1 , 2As shown in Figure 3, this new invention, based on the output power of the motor (not limited to motors, but also including internal combustion engines, pneumatic motors, etc.) and the load requirements of the driven equipment, assembles multiple single-pitch pulley bodies 3 together using bolts and threads. Then, the assembled two sets of multi-pitch pulley bodies 3 are respectively mounted on the motor shaft and the power input shaft of the driven equipment using positioning pins 4, etc. Subsequently, transmission belts are fitted onto the outer ends of the multiple grooves of the two sets of multi-pitch pulley bodies 3. In practical applications, if one or more single-pitch pulley bodies 3 are damaged, the multi-pitch pulley body 3 is removed from the shaft or power input shaft. The operator loosens the nuts and removes the bolts, then separates the multiple single-pitch pulley bodies 3, removes the single-pitch pulley body 3 that needs replacement, and reassembles a new single-pitch pulley body 3 (the undamaged single-pitch pulley bodies 3 can continue to be used), allowing for reuse. Through the above, this application, because multiple single-pitch pulley bodies can be separated and combined, effectively transmits power while also saving on usage costs, thus making efficient use of resources.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0020] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-pronged pulley that can be easily assembled and disassembled, comprising connecting bolts, nuts, and a single-pronged pulley body; characterized in that, The single-pitch pulley body, connecting bolts, and nuts are provided in multiple quantities. Each single-pitch pulley body has an internally threaded fixing hole on one side of its middle portion and an externally threaded connecting thread on the other side of its middle portion. Each single-pitch pulley body has multiple fixing holes A. Between any two adjacent single-pitch pulley bodies, the thread of one single-pitch pulley body and the fixing hole of the other single-pitch pulley body are threaded together. The multiple fixing holes A of the multiple single-pitch pulley bodies are arranged in a straight line laterally. Multiple connecting bolts are located laterally within the multiple fixing holes A of the multiple single-pitch pulley bodies. Multiple nuts are screwed into one side of the multiple connecting bolts to fix the multiple single-pitch pulley bodies together.

2. The multi-pulley belt pulley that can be easily assembled and disassembled according to claim 1, characterized in that, In a plurality of single-pitch pulley bodies, one of the single-pitch pulley bodies does not have a connecting solenoid at the other outer end of the middle part.

3. The multi-pulley belt pulley that can be easily assembled and disassembled according to claim 1, characterized in that, The length of the screw tube is the same as the length of the internal thread fixing hole, and the inner diameter of the screw tube is the same as the inner diameter of the fixing hole.

4. The multi-pulley belt pulley that can be easily assembled and disassembled according to claim 1, characterized in that, The outer diameter of the bolt head and the outer diameter of the nut of the connecting bolt are larger than the inner diameter of the fixing hole A.

5. The multi-pulley belt pulley that can be easily assembled and disassembled according to claim 1, characterized in that, Each single-pulley pulley has a lateral limiting groove in the middle of its body, and the limiting grooves of multiple single-pulley pulleys are aligned in a straight line laterally.

6. The multi-pulley belt pulley that can be easily assembled and disassembled according to claim 1, characterized in that, The limiting grooves of multiple single-pulley pulleys and the limiting groove of the equipment power input shaft are fixedly installed with locating pins through a transverse interference fit.

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