Engineering conveying chain wheel with replaceable teeth

Abstract

The utility model relates to the technical field of conveying chain wheels with replaceable teeth, and discloses an engineering conveying chain wheel with replaceable teeth, which comprises a chain wheel ring, chain wheel teeth and separation blocks, the outer side of the chain wheel ring is fixedly connected with five groups of chain wheel teeth, and the outer sides of the five groups of chain wheel teeth are movably connected with five groups of separation blocks. The outer sides of the five groups of separation blocks are fixedly connected with the outer side of the chain wheel ring 1, and during operation, the arranged locking structure limits rotation of a fastening screw, so that connection between the tooth part and the chain wheel base body is avoided, the tooth part is prevented from being affected by abrasion, impact and vibration for a long time when the tooth part runs at a high speed for a long time or bears heavy load, and the service life of the chain wheel is prolonged. When the chain wheel is in use, fatigue fracture or looseness of the connecting piece can be caused, the risk of failure is increased, the fastening screw is limited by the limiting ring, the looseness possibility is reduced, and the service life of the chain wheel is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying sprockets with replaceable teeth, in particular to an engineering conveying sprocket with replaceable teeth. Background Art

[0002] The engineering conveyor sprocket is a toothed wheel-shaped mechanical part that meshes with the chain. The commonly used material is C45. In the process of power transmission, the motor drives the sprocket to rotate through the reducer, and the sprocket drives the chain to rotate, thereby realizing the transmission of power. At the same time, in terms of material transportation, when the chain moves under the drive of the sprocket, the material on the chain also moves with it, thereby realizing the continuous transportation of materials. In addition, conveyor sprockets are widely used in many fields such as processing, production lines, warehousing, sorting, manufacturing, express delivery and parcel sorting.

[0003] According to the Chinese patent CN202320470950.5, in this application, the teeth and the hub of the engineering conveyor sprocket are designed into a combined structure, and the teeth and the hub are connected by positioning, so that the replacement operation of the teeth after operation wear is simple, the replacement operation time is shortened, the parts maintenance cost is reduced, and the maintenance time is saved.

[0004] Although the combined structure in the application can effectively deal with the problem of difficulty in replacement, the design of the sprocket depends on the connection between the teeth and the sprocket base during use. When the teeth are running at high speed for a long time or bearing heavy loads, the connection part is subject to long-term wear, impact and vibration, which may cause fatigue fracture or loosening of the connecting parts, increasing the risk of failure. For this reason, we propose a replaceable tooth engineering conveyor sprocket. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a replaceable tooth engineering conveying sprocket to solve the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a replaceable tooth engineering conveying sprocket, comprising a sprocket ring, sprocket teeth and a separator, wherein the outer side of the sprocket ring is fixedly connected with five groups of sprocket teeth, the outer sides of the five groups of sprocket teeth are movably connected with five groups of separators, the outer sides of the five groups of separators are fixedly connected with the outer side of the sprocket ring, and further comprising:

[0009] A locking structure disposed inside the sprocket teeth, the structure being used to lock the sprocket ring and the sprocket teeth;

[0010] An auxiliary structure disposed on the top of the sprocket ring, which is used to restrict the sprocket teeth;

[0011] The five groups of sprocket teeth are each provided with two groups of thread grooves at one end near the sprocket ring, and the inner walls of the two groups of thread grooves are movably connected with fastening screws. The five groups of sprocket teeth are each provided with a limiting groove at one end near the thread groove, and the limiting groove is connected to the thread groove. The locking structure comprises a connecting rod, a limiting ring and a limiting spring. The bottom of the inner walls of the two groups of thread grooves are movably connected with the limiting spring, and the bottom of the limiting spring is fixedly connected with a connecting rod, one end of the connecting rod passes through the limiting groove, and one end of the connecting rod is fixedly connected with the limiting ring, and the limiting ring is annular. Preferably, the auxiliary structure comprises a pressure rod and a cross block, the top of the fastening screw is movably connected with a cross block, and the cross block is in a "cross" shape, and the top of the cross block is fixedly connected with a pressure rod.

[0012] Preferably, a fixing groove is provided on the outer side of the sprocket ring at a position corresponding to the limiting groove, and the inner wall of the fixing groove is movably connected to the limiting ring.

[0013] Preferably, a limiting hole is provided at the top of the sprocket ring, the inner wall of the limiting hole is movably connected to a limiting column, and the bottom end of the limiting column is movably connected to the inner wall of the limiting ring.

[0014] Preferably, an end of the pressure rod away from the cross block is fixedly connected to an adjusting spring, and the bottom of the adjusting spring is fixedly connected to the top of the sprocket ring.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a replaceable tooth engineering conveyor sprocket, which has the following beneficial effects:

[0017] 1. The locking structure of the replaceable tooth engineering conveyor sprocket can avoid the connection between the tooth part and the sprocket base by limiting the rotation of the fastening screw during operation. When the tooth part runs at high speed for a long time or bears heavy load, the connection part is affected by wear, impact and vibration for a long time, which may cause fatigue fracture or loosening of the connecting parts, increasing the risk of failure. The fastening screw is restricted by the limit ring, reducing the possibility of loosening and greatly improving the service life of the sprocket.

[0018] 2. The auxiliary structure of the replaceable tooth engineering conveyor sprocket can help prevent the screws from loosening to a certain extent by applying pressure to the fastening screws and increasing the friction force during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a partial enlarged schematic diagram of the utility model;

[0022] Figure 4 This is an enlarged schematic diagram of the locking structure of the utility model;

[0023] Figure 5 It is an enlarged schematic diagram of the auxiliary structure of the utility model.

[0024] In the figure: 1. sprocket ring; 2. sprocket teeth; 3. separator block; 4. fastening screw; 5. limit groove; 6. connecting rod; 7. limit ring; 8. threaded groove; 9. limit spring; 10. limit hole; 11. fixing groove; 12. limit column; 13. pressure rod; 14. cross block; 15. adjustment spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 A replaceable tooth engineering conveying sprocket comprises a sprocket ring 1, sprocket teeth 2 and a separator 3, wherein the outer side of the sprocket ring 1 is fixedly connected with five groups of sprocket teeth 2, and the outer sides of the five groups of sprocket teeth 2 are movably connected with five groups of separators 3, and the outer sides of the five groups of separators 3 are fixedly connected with the outer side of the sprocket ring 1, and further comprises:

[0027] A locking structure disposed inside the sprocket teeth 2, the structure being used to lock the sprocket ring 1 and the sprocket teeth 2;

[0028] An auxiliary structure arranged on the top of the sprocket ring 1, which is used to restrict the sprocket teeth 2;

[0029] The five groups of sprocket teeth 2 are each provided with two groups of thread grooves 8 at one end near the sprocket ring 1, and the inner walls of the two groups of thread grooves 8 are movably connected with fastening screws 4. The five groups of sprocket teeth 2 are each provided with a limiting groove 5 at one end near the thread groove 8, and the limiting groove 5 is connected with the thread groove 8. When in use, the sprocket teeth 2 are placed on the sprocket ring 1, and then the fastening screw 4 is put into the thread groove 8 for tightening. The locking structure includes a connecting rod 6, a limiting ring 7 and a limiting spring 9. The bottom of the inner wall of the two groups of thread grooves 8 are movably connected with the limiting spring 9, and the bottom of the limiting spring 9 is fixedly connected with a connecting rod 6, one end of the connecting rod 6 passes through the limiting groove 5, and one end of the connecting rod 6 is fixedly connected to the limiting ring 7, and the limiting ring 7 is annular. When tightening, the fastening screw 4 moves downward, and the bottom end of the fastening screw 4 will contact the inner wall of the limiting spring 9. Continuing to tighten the fastening screw 4 will make the fastening screw 4 and the thread groove 8 and the limiting The spring 9 is fixed together. The existence of the limit spring 9 can increase the contact pressure between the fastening screw 4 and the thread groove 8, thereby improving the fastening and stability of the connection. The long-term rotation of the sprocket ring 1 and the sprocket tooth 2 may cause signs of looseness between the fastening screw 4 and the thread groove 8. When the fastening screw 4 is loose, since the limit spring 9 is connected to the connecting rod 6, the rotation of the fastening screw 4 drives the limit spring 9 to rotate, and the rotation of the limit spring 9 drives the connecting rod 6 to move on the inner wall of the limit groove 5, thereby limiting the movement range of the fastening screw 4. Furthermore, the auxiliary structure includes a pressure rod 13 and a cross block 14. The top of the fastening screw 4 is movably connected with the cross block 14, and the cross block 14 is in a "cross" shape. The top of the cross block 14 is fixedly connected with a pressure rod 13, and the pressure rod 13 plays a role in connecting the cross block 14. The adjustment spring 15 facilitates the adjustment of the position of the cross block 14.

[0030] Furthermore, a fixing groove 11 is provided on the outer side of the sprocket ring 1 at a position corresponding to the limiting groove 5 , and the inner wall of the fixing groove 11 is movably connected to the limiting ring 7 .

[0031] Furthermore, a limiting hole 10 is opened at the top of the sprocket ring 1, and the inner wall of the limiting hole 10 is movably connected to the limiting column 12, and the bottom end of the limiting column 12 is movably connected to the inner wall of the limiting ring 7, and the limiting ring 7 is inserted into the fixing groove 11 and fixed by the limiting column 12, so that the limiting ring 7 is fixed, so that the connecting rod 6, the limiting ring 7 and the limiting spring 9 are fixed, so when the fastening screw 4 rotates, the limiting ring 7 is fixed, resulting in the connecting rod 6 cannot move, and then the fastening screw 4 cannot move, which can reduce the possibility of loosening of the fastening screw 4 and extend the service life of the sprocket ring 1.

[0032] Furthermore, an end of the pressure rod 13 away from the cross block 14 is fixedly connected to an adjusting spring 15, and the bottom of the adjusting spring 15 is fixedly connected to the top of the sprocket ring 1, so that the cross block 14 is clamped on the top of the fastening screw 4. When the fastening screw 4 becomes loose, the cross block 14 can exert a certain torque effect.

[0033] Working principle:

[0034] When in use, place the sprocket tooth 2 on the sprocket ring 1, and then put the fastening screw 4 into the thread groove 8 for tightening. When tightening, the fastening screw 4 moves downward, and the bottom end of the fastening screw 4 will contact the inner wall of the limit spring 9. Continuing to tighten the fastening screw 4 will fix the fastening screw 4, the thread groove 8 and the limit spring 9 together. The presence of the limit spring 9 can increase the contact pressure between the fastening screw 4 and the thread groove 8, thereby improving the tightness and stability of the connection. The long-term rotation of the sprocket ring 1 and the sprocket tooth 2 may cause signs of looseness between the fastening screw 4 and the thread groove 8. When the fastening screw 4 is loose, since the limit spring 9 is connected to the connecting rod 6, the rotation of the fastening screw 4 drives the limit spring 9 to rotate, and the rotation of the limit spring 9 drives the connecting rod 6 The movement of the inner wall of the limit groove 5 limits the movement range of the fastening screw 4. The limit ring 7 is inserted into the fixing groove 11 and fixed by the limit column 12. Therefore, the limit ring 7 is fixed, so that the connecting rod 6, the limit ring 7 and the limit spring 9 are fixed. Therefore, when the fastening screw 4 rotates, the limit ring 7 is fixed, resulting in that the connecting rod 6 cannot move, and then the fastening screw 4 cannot move, which can reduce the possibility of loosening of the fastening screw 4 and extend the service life of the sprocket ring 1. After installation, the cross block 14 is clamped on the top of the fastening screw 4. When the fastening screw 4 is loose, the cross block 14 can play a certain torque role. The pressure rod 13 plays the role of connecting the cross block 14, and the adjustment spring 15 facilitates the adjustment of the position of the cross block 14.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A replaceable tooth engineering conveying sprocket, comprising a sprocket ring (1), sprocket teeth (2) and a spacer block (3), wherein the outer side of the sprocket ring (1) is fixedly connected with five groups of sprocket teeth (2), the outer sides of the five groups of sprocket teeth (2) are movably connected with five groups of spacer blocks (3), and the outer sides of the five groups of spacer blocks (3) are fixedly connected with the outer side of the sprocket ring (1), characterized in that: Also includes: A locking structure arranged inside the sprocket teeth (2), the structure being used to lock the sprocket ring (1) and the sprocket teeth (2); An auxiliary structure arranged on the top of the sprocket ring (1), the structure being used to restrict the sprocket teeth (2); The five groups of sprocket teeth (2) are each provided with two groups of thread grooves (8) at one end close to the sprocket ring (1), and the inner walls of the two groups of thread grooves (8) are each movably connected with a fastening screw (4). The five groups of sprocket teeth (2) are each provided with a limiting groove (5) at one end close to the thread groove (8), and the limiting groove (5) is connected with the thread groove (8). The locking structure comprises a connecting rod (6), a limiting ring (7) and a limiting spring (9), and the bottom of the inner walls of the two groups of thread grooves (8) are each movably connected with the limiting spring (9). ), the bottom of the limit spring (9) is fixedly connected to a connecting rod (6), one end of the connecting rod (6) passes through the limit groove (5), one end of the connecting rod (6) is fixedly connected to a limit ring (7), and the limit ring (7) is annular, the auxiliary structure includes a pressure rod (13) and a cross block (14), the top of the fastening screw (4) is movably connected to the cross block (14), and the cross block (14) is in a "cross" shape, and the top of the cross block (14) is fixedly connected to the pressure rod (13).

2. The replaceable tooth engineering conveyor sprocket according to claim 1, characterized in that: A fixing groove (11) is provided on the outer side of the sprocket ring (1) at a position corresponding to the limiting groove (5), and the inner wall of the fixing groove (11) is movably connected to the limiting ring (7).

3. The replaceable tooth engineering conveyor sprocket according to claim 1, characterized in that: A limiting hole (10) is provided at the top of the sprocket ring (1), the inner wall of the limiting hole (10) is movably connected to a limiting column (12), and the bottom end of the limiting column (12) is movably connected to the inner wall of the limiting ring (7).

4. The replaceable tooth engineering conveyor sprocket according to claim 1, characterized in that: An end of the pressure rod (13) away from the cross block (14) is fixedly connected to an adjustment spring (15), and the bottom of the adjustment spring (15) is fixedly connected to the top of the sprocket ring (1).

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