Chain wheel

Abstract

The invention discloses a chain wheel which comprises a first chain wheel body, a first chain wheel plate, chain wheel teeth, a containing groove, a thick spring, a spring pressing plate, an output shaft and a tooth groove, a chain wheel groove is formed in the outer edge of the first chain wheel body, the thick spring is arranged in the spring groove, the spring pressing plate is fixed to the thick spring, and the spring pressing plate is fixed to the output shaft. After the chain wheel is connected with the driving output, the output shaft rotates to compress and stretch the thick spring, the effect of buffering the driving force is achieved, and the chain wheel can be protected from being damaged after working for a long time; the first chain wheel plate is installed in the containing groove in the first chain wheel body to form an assembly type assembly structure, when the chain wheel teeth are abraded after working for a long time, only the first chain wheel plate needs to be replaced independently, and the maintenance cost is reduced. The chain wheel teeth are provided with the wheel tooth grooves, when the chain is broken, the thin steel rope penetrates through the wheel tooth grooves and then lifts the chain, the chain can be quickly connected, and the safety during chain connection is improved.

Description

Technical Field

[0001] The invention relates to the technical field of transmission sprockets, and in particular to a sprocket. Background Art

[0002] A sprocket is a wheel with cog-type sprocket teeth. The main function of a sprocket is to transmit power and torque. It is an indispensable part of a mechanical transmission system. The working principle of a sprocket is mainly to connect several gears into a chain, and then cooperate with one or more power sources to play the role of transmission and force transfer. The sprocket can transfer power from one shaft to another to realize the operation of mechanical equipment. A sprocket is a commonly used part in mechanical transmission, with a wide range of applications and important functions. Chain transmission is the most commonly used transmission method for industrial and agricultural machinery. It has a simple design and low cost, but it will break during use. Connecting the chain is common, but it is very troublesome and unsafe. When the sprocket is connected to the output end of the motor, the force at the output end of the motor starts to rotate is very large, and the sprocket will be damaged after working for a long time. Therefore, it is very necessary to design a sprocket that can buffer the sprocket when the motor rotates and can lift the chain when the chain breaks, so that it is very necessary to quickly connect the chain. Summary of the invention

[0003] The purpose of the present invention is to provide a sprocket to solve the defects of the existing sprocket that when the chain is broken, it is very time-consuming and unsafe to connect the chain; it can also solve the defect that the force at the output end of the motor when starting to rotate is very large, which will damage the sprocket after long-term work.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a sprocket, comprising a first sprocket body, a first sprocket plate, sprocket teeth, a placement groove, a first sprocket protrusion, a coarse spring, a spring groove, a spring pressure plate, an output shaft and a tooth groove, wherein a placement groove is provided in the first sprocket body, a first sprocket plate is sleeved in the placement groove, sprocket teeth are evenly arranged on the first sprocket plate, and tooth grooves are provided on the sprocket teeth; a first sprocket protrusion is provided at the center of one side of the first sprocket body, a spring groove is provided in the first sprocket protrusion, one end of a coarse spring is fixed in the spring groove, the other end of the coarse spring is fixed to the spring pressure plate, one side of the spring pressure plate is fixed to the output shaft, and the other side of the spring pressure plate is slidably connected to the first sprocket protrusion.

[0005] As a further technical solution of the present invention, a chain plate hole is opened on the first sprocket body, a first screw is sleeved in the chain plate hole, one end of the first screw is connected to a first nut through threaded cooperation, and the first nut is attached to the first sprocket body.

[0006] As a further technical solution of the present invention, the first screw is sleeved in the sprocket plate hole, and the sprocket plate holes are evenly arranged on the first sprocket plate.

[0007] As a further technical solution of the present invention, an annular hole is provided on the first sprocket protrusion.

[0008] As a further technical solution of the present invention, a second screw is fixedly connected to the annular hole through a thread, and the second screw is tightly pressed on the gasket.

[0009] As a further technical solution of the present invention, a chain baffle is provided on the first sprocket body.

[0010] As a further technical solution of the present invention, a through hole is provided on the first sprocket body.

[0011] As a further technical solution of the present invention, a connecting block is provided on the first sprocket body, and a connecting hole is opened on the connecting block.

[0012] As a further technical solution of the present invention, a third screw is sleeved in the connection hole, one end of the third screw is connected to a third nut through threaded cooperation, and the third nut is tightly attached to the connection block.

[0013] As a further technical solution of the present invention, a sliding groove is provided on the first sprocket protrusion, and a spring pressure plate is slidably connected in the sliding groove.

[0014] The sprocket provided by the present invention has the advantages that: the output shaft is driven to rotate by rotating the output end of the motor, a spring pressure plate is fixed on the output shaft, and a thick spring is connected to the spring pressure plate. After the output shaft rotates, the spring pressure plate will be driven to slide on the first sprocket protrusion and will compress and stretch the thick spring, which plays a role in buffering the driving force of the motor output end, and can protect the sprocket from being damaged after long-term work; four identical first sprocket main bodies are connected to form a whole sprocket by threaded fixing, and a first sprocket plate is connected to the first sprocket main body by threaded fixing. When the sprocket teeth are worn after long-term work, there is no need to replace the whole sprocket, only the first sprocket plate needs to be replaced, which can reduce maintenance costs; tooth grooves are provided on the sprocket teeth, and when the chain is disconnected, a thin steel rope is passed through the tooth groove and the chain is lifted, so the chain can be quickly connected, which improves the safety when connecting the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a front view of the present invention;

[0018] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 It is a three-dimensional diagram of part of the structure of the present invention;

[0020] Figure 5 It is a three-dimensional schematic diagram of the first sprocket plate of the present invention;

[0021] In the figure: 1. first sprocket body; 2. first sprocket plate; 3. sprocket teeth; 4. placement groove; 7. first sprocket protrusion; 8. thick spring; 9. spring groove; 10. spring pressure plate; 11. output shaft; 12. tooth groove; 6. connecting hole; 31. first screw; 32. first nut; 42. sprocket plate hole; 33. ring hole; 34. second screw; 35. gasket; 40. chain baffle; 13. through hole; 36. connecting block; 37. connecting hole; 38. third screw; 39. third nut; 41. sliding groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-5The present invention provides an embodiment: a sprocket, comprising a first sprocket body 1, a first sprocket plate 2, sprocket teeth 3, a placement groove 4, a first sprocket protrusion 7, a thick spring 8, a spring groove 9, a spring pressure plate 10, an output shaft 11 and a tooth groove 12, the first sprocket body 1 is provided with a placement groove 4, the placement groove 4 is used to install the first sprocket plate 2, the first sprocket plate 2 is sleeved in the placement groove 4, the first sprocket plate 2 is used to install the sprocket teeth 3, the first sprocket plate 2 is evenly provided with sprocket teeth 3, the sprocket teeth 3 are used to interact with the chain to push the chain to move, and the sprocket teeth 3 are provided with tooth grooves 12; the first sprocket body A first sprocket protrusion 7 is provided at the center of one side of the body 1, a spring groove 9 is provided in the first sprocket protrusion 7, the spring groove 9 is used to install a thick spring 8, one end of the thick spring 8 is fixed in the spring groove 9, the thick spring 8 is used to buffer the driving force of the motor output end, the other end of the thick spring 8 is fixed on a spring pressure plate 10, the spring pressure plate 10 is used to connect the thick spring 8 and the output shaft 11, one side of the spring pressure plate 10 is fixed on the output shaft 11, the output shaft 11 is used to provide driving force for the motor, the other side of the spring pressure plate 10 is slidably connected to the first sprocket protrusion 7, and the first sprocket protrusion 7 is used to install the spring groove 9;

[0025] The first sprocket body 1 is provided with a chain plate hole 6, which is used to sleeve a first screw 31. The first screw 31 is sleeved in the chain plate hole 6. The first screw 31 is used to fix the first sprocket plate 2 on the first sprocket body 1. One end of the first screw 31 is connected to a first nut 32 through threaded fitting, and the first nut 32 is attached to the first sprocket body 1.

[0026] The first screw 31 is sleeved in the sprocket plate hole 42. The sprocket plate hole 42 is used to sleeve the first screw 31. The sprocket plate holes 42 are evenly arranged on the first sprocket plate 2.

[0027] The first sprocket protrusion 7 is provided with an annular hole 33, and the annular hole 33 is used for sleeve receiving the second screw 34;

[0028] A second screw 34 is fixedly connected in the annular hole 33 by a thread, and the second screw 34 is used to fix the four first sprocket protrusions 7. The second screw 34 is tightly pressed on the gasket 35, and the gasket 35 is used to connect the four first sprocket protrusions 7;

[0029] A chain baffle 40 is provided on the first sprocket body 1, and the chain baffle 40 is used to block the chain and prevent the chain from slipping out;

[0030] A through hole 13 is formed on the first sprocket body 1, and the through hole 13 is used to reduce weight and material cost;

[0031] The first sprocket body 1 is provided with a connecting block 36, which is used to connect the first sprocket body 1, and the connecting block 36 is provided with a connecting hole 37, which is used to sleeve the second screw 34;

[0032] A third screw 38 is sleeved in the connection hole 37, and the third screw 38 is used to fix the connection block 36. One end of the third screw 38 is connected to a third nut 39 through threaded cooperation, and the third nut 39 is tightly attached to the connection block 36;

[0033] A sliding groove 41 is provided on the first sprocket protrusion 7, and the sliding groove 41 is used to provide a sliding place for the spring pressure plate 10 and support the output shaft 11;

[0034] Specifically, when in use, first, four identical first sprocket main bodies 1 are connected to form a whole sprocket by threaded fixing, and the sprocket and the chain interact with each other to form a chain drive, which can play the role of transportation and transmission. First, the output end of the motor rotates to drive the output shaft 11 to rotate, and a spring pressure plate 10 is fixed on the output shaft 11, and a thick spring 8 is connected to the spring pressure plate 10. After the output shaft 11 rotates, the spring pressure plate 10 will drive the slide on the first sprocket protrusion 7 and compress and stretch the thick spring 8, which plays the role of buffering the driving force of the motor output end, and can protect the sprocket from being damaged after long-term work; the first sprocket main body 1 is connected to the first sprocket plate 2 by threaded fixing, and the first sprocket plate 2 is fixed with sprocket teeth 3. When the sprocket teeth 3 are worn after long-term work, it is not necessary to replace a whole sprocket, but only the first sprocket plate 2 needs to be replaced, which can reduce maintenance costs; a tooth groove 12 is provided on the sprocket teeth 3. When the chain is disconnected, a thin steel rope is passed through the tooth groove 12 and the chain is lifted, so that the chain can be quickly connected, which improves the safety when connecting the chain.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sprocket, comprising a first sprocket body (1), a first sprocket plate (2), sprocket teeth (3), a placement groove (4), a first sprocket protrusion (7), a thick spring (8), a spring groove (9), a spring pressure plate (10), an output shaft (11) and a tooth groove (12), characterized in that: The first sprocket body (1) is provided with a placement groove (4), a first sprocket plate (2) is sleeved in the placement groove (4), sprocket teeth (3) are evenly arranged on the first sprocket plate (2), and tooth grooves (12) are arranged on the sprocket teeth (3); a first sprocket protrusion (7) is arranged at the center of one side of the first sprocket body (1), a spring groove (9) is arranged in the first sprocket protrusion (7), one end of a coarse spring (8) is fixed in the spring groove (9), the other end of the coarse spring (8) is fixed on a spring pressure plate (10), one side of the spring pressure plate (10) is fixed on the output shaft (11), and the other side of the spring pressure plate (10) is slidably connected to the first sprocket protrusion (7).

2. A sprocket according to claim 1, characterized in that: The first sprocket body (1) is provided with a chain plate hole (6), a first screw (31) is sleeved in the chain plate hole (6), one end of the first screw (31) is connected to a first nut (32) through threaded engagement, and the first nut (32) is fitted onto the first sprocket body (1).

3. A sprocket according to claim 2, characterized in that: The first screw (31) is sleeved in the sprocket plate hole (42), and the sprocket plate holes (42) are evenly arranged on the first sprocket plate (2).

4. A sprocket according to claim 1, characterized in that: The first sprocket protrusion (7) is provided with an annular hole (33).

5. A sprocket according to claim 4, characterized in that: A second screw (34) is fixedly connected to the annular hole (33) via a thread, and the second screw (34) is tightly pressed on the gasket (35).

6. A sprocket according to claim 2, characterized in that: A chain baffle (40) is provided on the first sprocket body (1).

7. A sprocket according to claim 2, characterized in that: The first sprocket body (1) is provided with a through hole (13).

8. A sprocket according to claim 2, characterized in that: The first sprocket body (1) is provided with a connecting block (36), and the connecting block (36) is provided with a connecting hole (37).

9. A sprocket according to claim 8, characterized in that: A third screw (38) is sleeved in the connection hole (37), one end of the third screw (38) is connected to a third nut (39) through threaded engagement, and the third nut (39) is tightly attached to the connection block (36).

10. A sprocket according to claim 1, characterized in that: The first sprocket protrusion (7) is provided with a sliding groove (41), and the sliding groove (41) is slidably connected to a spring pressure plate (10).

Images