Expansion sleeve synchronizing wheel convenient to disassemble and assemble

Abstract

The utility model provides an expansion sleeve synchronizing wheel convenient to disassemble and assemble, which comprises a main body, one end of the main body is provided with an embedding groove communicated with the middle part of the main body, a connecting mechanism is arranged in the embedding groove, an embedding plate is embedded and inserted in the embedding groove positioned on one side of the connecting mechanism, and the embedding plate is fixedly connected with the main body through a screw; the expansion sleeve is embedded and inserted into the main body, one end of the expansion sleeve is provided with a convex part, the convex part is embedded and inserted into a round hole in the middle of the main body, the edge of the expansion sleeve is provided with a plurality of uniformly distributed through holes, the interiors of the through holes are inserted into the screw rod in a penetrating manner, and the screw rod is in threaded connection with the interior of the connecting mechanism. The expansion sleeve can be tightly attached to the inner wall of the main body while expansion connection is achieved by arranging the connecting mechanism, the connecting stability is further improved, connection is achieved through cooperation of the screw and the limiting sleeve, connection of the expansion sleeve is achieved through deflection generated during locking, the expansion sleeve can be used for long transmission accessories of automatic machines, and the application range is wide. And keyless connection of the machine part and the shaft is realized.

Description

Technical Field

[0001] The utility model relates to a synchronous wheel of an expansion sleeve which is easy to disassemble and assemble. Background Art

[0002] The expansion sleeve synchronous wheel (or expansion sleeve, expansion sleeve, tensioning sleeve, tensioning coupling, locking coupling disc, etc.) is an advanced basic component widely used in mechanical connection under heavy load. In the connection between the wheel and the shaft, the expansion sleeve relies on tightening the high-strength bolts to generate pressure and friction between the containing surfaces to achieve load transmission. It is a keyless connection device and a transmission product with a keyless connection structure. When the hub and the shaft need to be connected, the expansion sleeve is tightened by bolts to generate axial movement and radial force and friction, thereby meeting the torque requirements. The characteristics of the expansion sleeve include good centering performance of the connection, no need for heating during assembly, convenient adjustment of the corresponding position of the shaft and the hub, no stress concentration, strong bearing capacity, large torque, good stability, high precision and no damage to the mating surface. However, the expansion sleeve also has some disadvantages, such as high manufacturing cost, difficult maintenance and inability to adjust the relative position of the shaft and the wheel. When choosing a synchronous pulley, the most suitable connection method should be selected based on the specific application and needs. In addition, the expansion sleeve synchronous pulley is also used in aerodynamic noise control. When the pulley rotates at high speed, the aerodynamic noise generated by the synchronous belt drive can be reduced by grooving the pulley circumferentially or grooving the silencer radially. The design of these grooves needs to pay attention to the depth and width of the grooves, the distribution of the grooves, and the elimination of sharp cuts and burrs at the grooves to avoid affecting the transmission power and destroying the balance of the pulley.

[0003] The expansion sleeve synchronous wheel refers to the general term for two parts connected by static friction. When the expansion sleeve synchronous wheel is used, the tightness between them is easily reduced due to long-term use, especially when high torque transmission is performed, which is easy to cause looseness between them, and the subsequent disassembly and assembly are inconvenient, which brings inconvenience to the use of the expansion sleeve synchronous wheel. Utility Model Content

[0004] The utility model provides a expansion sleeve synchronous wheel which is easy to disassemble and assemble in order to solve the technical problem that the connection tightness of the expansion sleeve synchronous wheel is poor.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a locking sleeve synchronous wheel which is easy to disassemble and assemble, comprising:

[0007] A main body, wherein one end of the main body is provided with an embedding groove communicating with the middle part thereof, a connecting mechanism is provided inside the embedding groove, and an embedding plate is embedded and plugged inside the embedding groove located on one side of the connecting mechanism, and the embedding plate is fixedly connected to the main body by screws;

[0008] The expansion sleeve is embedded and plugged into the inside of the main body. A protrusion is provided at one end of the expansion sleeve, and the protrusion is embedded and plugged into the inside of the circular hole in the middle of the main body. A plurality of evenly distributed through holes are opened on the edge of the expansion sleeve, and a screw rod is inserted through the inside of the through hole, and the screw rod is threadedly connected to the inside of the connecting mechanism.

[0009] In the technical solution, convex edges for belt limiting are provided on both sides of the main body, and tooth grooves are provided on the surface of the main body between the convex edges.

[0010] In the technical solution, the main body is an annular structure, and an embedded plate with a circular structure is provided on one side of the main body. The embedded plate is an annular structure and is provided with a plurality of evenly distributed screws.

[0011] In the technical solution, a plurality of evenly distributed positioning blocks are fixedly connected to the edge of the embedded plate, and each of the positioning blocks is located inside the embedded groove.

[0012] In the present technical solution, the connection mechanism includes a limiting shaft and a limiting sleeve, the limiting sleeve is fixedly connected to the middle of the limiting shaft, the limiting shaft has a circular cross-section and is engaged with the inside of the main body.

[0013] In the technical solution, a plurality of evenly distributed slots are provided inside the main body, the interior of the slots is engaged with the limiting sleeve, and the interior of the limiting sleeve is threadedly connected with the screw.

[0014] In the technical solution, the slot is an inclined structure and communicates with the inside of the embedded slot, and the positioning block inside the embedded slot contacts the surface of the limiting shaft.

[0015] In the technical solution, the expansion sleeve and the raised portion are both provided with mutually communicating mounting holes, and the expansion sleeve and the edges of the raised portion are both provided with mutually communicating grooves.

[0016] In the technical solution, the protrusion is inserted and engaged with the inside of the embedded plate, and an inclined surface is provided at one end of the protrusion located inside the main body.

[0017] In the technical solution, the diameter of the through hole is larger than the diameter of the screw rod, the screw rod extends into the interior of the slot, and the end of the screw rod contacts the surface of the expansion sleeve.

[0018] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0019] The positive and progressive effects of the utility model are:

[0020] The above-mentioned expansion sleeve synchronous wheel that is easy to disassemble and assemble adopts the cooperation between the expansion sleeve and the main body to achieve quick connection, which solves the problem of inconvenient assembly of the existing expansion sleeve synchronous wheel, and realizes the expansion connection by setting a connecting mechanism, while enabling the expansion sleeve to fit tightly against the inner wall of the main body, further improving the connection stability, and uses the cooperation of a screw and a limit sleeve to achieve connection instead, and utilizes the deflection generated during locking to achieve the connection of the expansion sleeve, which solves the problem of looseness that easily occurs during high-torque transmission, improves the stability of the expansion sleeve synchronous wheel, and is simple and convenient to disassemble and assemble, and the main body is directly set on the synchronous wheel, which solves the problem of subsequent inconvenience in disassembly and assembly, and can be used for long transmission accessories of automated machinery to achieve keyless connection between machine parts and shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the internal side structure of the utility model.

[0023] Figure 3 It is a front view structural diagram of the expansion sleeve of the utility model.

[0024] Figure 4 It is a front view structural schematic diagram of the limiting sleeve of the utility model.

[0025] Description of Reference Numerals

[0026] 100, main body; 101, tooth groove; 102, embedded groove; 103, embedded plate; 104, screw; 105, positioning block; 106, slot; 107, limit shaft; 108, limit sleeve; 200, expansion sleeve; 201, raised portion; 202, inclined surface; 203, slot; 204, through hole; 205, screw. DETAILED DESCRIPTION

[0027] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0028] like Figure 1-4 As shown, the expansion sleeve synchronous wheel that is easy to disassemble and assemble includes:

[0029] A main body 100, wherein one end of the main body 100 is provided with an embedding groove 102 communicating with the middle thereof, a connecting mechanism is provided inside the embedding groove 102, and an embedding plate 103 is embedded and plugged inside the embedding groove 102 located on one side of the connecting mechanism, and the embedding plate 103 is fixedly connected to the main body 100 by screws 104;

[0030] The expansion sleeve 200 is embedded and plugged into the main body 100. A protrusion 201 is provided at one end of the expansion sleeve 200. The protrusion 201 is embedded and plugged into the circular hole in the middle of the main body 100. A plurality of evenly distributed through holes 204 are opened on the edge of the expansion sleeve 200. A screw 205 is inserted through the through hole 204, and the screw 205 is threadedly connected to the inside of the connecting mechanism.

[0031] In the present technical solution, the main body 100 is provided with convex edges on both sides for belt limiting, and the surface of the main body 100 between the convex edges is provided with tooth grooves 101. The integrally formed main body 100 forms a synchronous wheel and is connected to the expansion sleeve 200 to achieve a quick assembly function.

[0032] In the present technical solution, the main body 100 is an annular structure, and an embedded plate 103 with a circular structure is provided on one side of the main body 100. The embedded plate 103 is an annular structure and is provided with a number of evenly distributed screws 104. By setting the embedded plate 103, quick installation can be achieved and the connecting mechanism in the embedded groove 102 can be protected.

[0033] In the present technical solution, a plurality of evenly distributed positioning blocks 105 are fixedly connected to the edge of the embedding plate 103 , and each of the positioning blocks 105 is located inside the embedding groove 102 . The positioning blocks 105 can be used to press and fix the limiting shaft 107 .

[0034] In the present technical solution, the connecting mechanism includes a limiting shaft 107 and a limiting sleeve 108. The limiting sleeve 108 is fixedly connected to the middle part of the limiting shaft 107. The limiting shaft 107 has a circular cross-section and is engaged with the inside of the main body 100. The connecting mechanism can realize a quick connection between the main body 100 and the expansion sleeve 200. After the expansion sleeve 200 is installed, the screw 205 is passed through the through hole 204, and the limiting sleeve 108 is connected through the slot 106 to realize a tight connection of the expansion sleeve 200.

[0035] In the present technical solution, a plurality of evenly distributed slots 106 are provided inside the main body 100, and the interior of the slots 106 is engaged with the limiting sleeve 108, and the interior of the limiting sleeve 108 is threadedly connected with the screw 205. When the screw 205 is tightened inside the limiting sleeve 108, the inclined screw 205 pulls the expansion sleeve 200 to expand outward, so that it presses against the inner wall of the main body 100 to achieve a tight connection.

[0036] In the present technical solution, the slot 106 is an inclined structure and communicates with the inside of the embedding slot 102 . The positioning block 105 inside the embedding slot 102 contacts the surface of the limiting shaft 107 , and the limiting shaft 107 is pressed and fixed by the positioning block 105 .

[0037] In the present technical solution, the expansion sleeve 200 and the raised portion 201 are provided with interconnected mounting holes, and the edges of the expansion sleeve 200 and the raised portion 201 are provided with interconnected slots 203, and the expansion and compression of the expansion sleeve 200 can be achieved by providing the slots 203.

[0038] In the present technical solution, the protrusion 201 is engaged with the embedded plate 103, and a slope 202 is provided at one end of the protrusion 201 inside the main body 100. The slope 202 can ensure the rapid installation of the expansion sleeve 200, and its expansion performance can be used to achieve rapid connection.

[0039] In the present technical solution, the diameter of the through hole 204 is larger than the diameter of the screw 205, the screw 205 extends to the inside of the slot 106, and the end of the screw 205 contacts the surface of the expansion sleeve 200. When tightened, the screw 205 contacts the inner wall of the through hole 204 and pushes the expansion sleeve 200 to expand to improve the connection stability.

[0040] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. The expansion sleeve synchronous wheel is easy to disassemble and assemble, characterized in that: include: A main body (100), wherein one end of the main body (100) is provided with an embedding groove (102) communicating with the middle thereof, a connecting mechanism is provided inside the embedding groove (102), and an embedding plate (103) is embedded and plugged inside the embedding groove (102) located on one side of the connecting mechanism, and the embedding plate (103) is fixedly connected to the main body (100) by means of screws (104); A clamping sleeve (200) is provided, wherein the clamping sleeve (200) is inserted and engaged with the inside of a main body (100), a protrusion (201) is provided at one end of the clamping sleeve (200), and the protrusion (201) is inserted and engaged with the inside of a circular hole in the middle of the main body (100), and a plurality of evenly distributed through holes (204) are provided on the edge of the clamping sleeve (200), and a screw rod (205) is inserted and penetrated through the inside of the through hole (204), and the screw rod (205) is threadedly connected to the inside of a connecting mechanism.

2. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 1, characterized in that: Both sides of the main body (100) are provided with convex edges for belt limiting, and the surface of the main body (100) between the convex edges is provided with tooth grooves (101).

3. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The main body (100) is an annular structure. An embedded plate (103) with a circular structure is provided on one side of the main body (100). The embedded plate (103) is an annular structure and is provided with a plurality of evenly distributed screws (104).

4. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 3, characterized in that: A plurality of evenly distributed positioning blocks (105) are fixedly connected to the edge of the embedding plate (103), and each of the positioning blocks (105) is located inside the embedding groove (102).

5. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The connection mechanism comprises a limiting shaft (107) and a limiting sleeve (108); the limiting sleeve (108) is fixedly connected to the middle of the limiting shaft (107); the limiting shaft (107) has a circular cross-section and is engaged with the interior of the main body (100).

6. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The main body (100) is provided with a plurality of evenly distributed slots (106), the interior of the slots (106) is engaged with the limiting sleeve (108), and the interior of the limiting sleeve (108) is threadedly connected with the screw rod (205).

7. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 6, characterized in that: The slot (106) is an inclined structure and is in communication with the interior of the embedding groove (102); the positioning block (105) inside the embedding groove (102) is in contact with the surface of the limiting shaft (107).

8. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The expansion sleeve (200) and the raised portion (201) are both provided with mutually communicating mounting holes, and the edges of the expansion sleeve (200) and the raised portion (201) are both provided with mutually communicating grooves (203).

9. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The protruding portion (201) is inserted and engaged with the inside of the embedded plate (103), and an inclined surface (202) is provided at one end of the protruding portion (201) located inside the main body (100).

10. The expansion sleeve synchronous wheel that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The diameter of the through hole (204) is greater than the diameter of the screw rod (205), the screw rod (205) extends to the inside of the slot (106), and the end of the screw rod (205) contacts the surface of the expansion sleeve (200).

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