Multi-stage speed reduction synchronous pulley

Abstract

The utility model relates to the technical field of synchronous pulleys, in particular to a multistage speed reduction synchronous pulley which comprises an input wheel, a speed reduction wheel and an output wheel, and the speed reduction wheel is arranged between the input wheel and the output wheel and used for speed reduction of the input wheel and the output wheel. The input shaft, the sealing ring and the input bearing are integrated through the input wheel, the input teeth and the input limiting teeth are arranged, the output teeth are conveniently driven to rotate through the input teeth, stable transmission is ensured, the input teeth are provided with the input sealing ring, and input stability and sealing performance are ensured; a plurality of speed reduction teeth are annularly distributed on the periphery of the speed reduction wheel, the speed reduction ratio is effectively increased, input limiting teeth and output limiting teeth are precisely matched with the speed reduction teeth to refine the speed reduction process, the transmission efficiency and stability are improved, the output rotating speed is reduced, the precise transmission requirement under the complex working condition is met, the overall design is compact and reasonable, and cost is low. And the transmission efficiency and the service life are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to synchronous pulley technical field, concretely is a kind of multistage reduction synchronous pulley. BACKGROUND

[0002] Synchronous pulley, also known as synchronous wheel, is a key component used in transmission system. It realizes accurate and stable transmission of power by cooperating with synchronous belt. Synchronous pulley is usually made of high-quality materials, with high strength and wear resistance, to ensure the efficiency and reliability of transmission process.

[0003] At present, most of the synchronous pulley on the market is replaced for deceleration. Due to high precision and complex process of parts, the structure and assembly process of synchronous pulley reducer are also complex, and there is a gap between the teeth of the gear, which can cause certain return difference, affect the transmission accuracy and reduce the use efficiency. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model provides a kind of multistage reduction synchronous pulley, solve the problem that most of the synchronous pulley on the market is replaced for deceleration at present. Due to high precision and complex process of parts, the structure and assembly process of synchronous pulley reducer are also complex, and there is a gap between the teeth of the gear, which can cause certain return difference, affect the transmission accuracy and reduce the use efficiency.

[0005] The technical scheme adopted by the utility model is: a kind of multistage reduction synchronous pulley, including input wheel, reduction wheel and output wheel, the reduction wheel is arranged between input wheel and output wheel, the reduction wheel is used for the input wheel and output wheel to decelerate;The input wheel includes input shaft, input sealing ring and input bearing, the outer periphery of the input bearing is provided with input tooth, the side of the input bearing close to the input tooth is provided with input limiting tooth;The reduction wheel is provided with reduction tooth, the reduction tooth is provided with multiple, multiple reduction teeth are arranged on the outer periphery of reduction wheel;The output wheel includes output tooth, the side of the output wheel close to the output tooth is provided with output limiting tooth, the input limiting tooth and output limiting tooth are matched with multiple reduction teeth, to carry out multistage reduction to input wheel and output wheel.

[0006] Further improvement of the above scheme is that a mounting ring is provided on the input shaft, multiple mounting teeth are provided on the mounting ring, multiple mounting teeth are arranged on the mounting ring, the input shaft is used for input wheel, reduction wheel and output wheel to be installed in sequence, and limited by mounting ring and mounting tooth.

[0007] Further improvement of the above scheme is that one end of the input sealing ring is provided with a sealing convex ring, one end of the sealing convex ring faces the input shaft, the outer periphery of the sealing convex ring is arc-shaped, and the input sealing ring is a sealing rubber ring.

[0008] Further improvement of the above scheme is that one end of the input wheel is provided with an input cam, one end of the input cam abuts against the speed reduction wheel, the input limiting teeth are provided in plurality, the plurality of input limiting teeth are arranged on the outer periphery of the input cam, and one end of the input limiting teeth is matched with the speed reduction teeth.

[0009] Further improvement of the above scheme is that the speed reduction wheel comprises a first speed reduction gear, a second speed reduction gear, and a speed reduction matching ring, the speed reduction matching ring is provided with a matching block, the first speed reduction gear is provided with a first matching groove corresponding to the matching block, the second speed reduction gear is provided with a second matching groove corresponding to the matching block, and the first matching groove and the second matching groove are matched with the matching block to form an integrated structure by matching the first speed reduction gear and the second speed reduction gear in the speed reduction wheel through the speed reduction matching ring.

[0010] Further improvement of the above scheme is that the first speed reduction gear comprises first speed reduction teeth, the first speed reduction teeth are provided in plurality, and a first speed reduction strip is arranged between two first speed reduction teeth; the first speed reduction teeth abut against the input limiting teeth and slow down the input wheel through the first speed reduction strip.

[0011] Further improvement of the above scheme is that the second speed reduction gear comprises second speed reduction teeth, the second speed reduction teeth are provided in plurality, and a second speed reduction strip is arranged between two second speed reduction teeth; the second speed reduction teeth abut against the output limiting teeth and slow down the output wheel through the second speed reduction strip.

[0012] Further improvement of the above scheme is that one end of the first speed reduction teeth, the second speed reduction teeth, the input limiting teeth, and the output limiting teeth is triangular structure.

[0013] Further improvement of the above scheme is that the output wheel comprises an output clasp ring, a first output sleeve, and a second output sleeve, the first output sleeve and the output clasp ring are arranged between the output wheel and the second speed reduction gear, and the second output sleeve is arranged between the first speed reduction gear and the input wheel; the first output sleeve and the second output sleeve are used to wrap the input wheel and the speed reduction wheel on the input shaft.

[0014] Further improvement of the above scheme is that one end of the output teeth is provided with an output cam, the output limiting teeth are provided in plurality, the plurality of output limiting teeth are arranged on the output cam, and one end of the output cam abuts against the second speed reduction gear.

[0015] The utility model discloses the beneficial effect is:

[0016] Compared with the synchronous pulley of prior art, the utility model discloses the input wheel integration input shaft, sealing ring and input bearing, and is equipped with input tooth and input limit tooth, and is driven output tooth rotation through input tooth, ensures stable transmission, and the input tooth is provided with input sealing ring, guarantees the stability and the leakproofness of input, through the periphery of reduction gear ring arrangement multiple reduction gear, effectively increases the reduction ratio, and input limit tooth and output limit tooth and reduction gear precision cooperation refine the reduction process, improves transmission efficiency and stability, reduces the output rotation speed, satisfies the accurate transmission demand under the complex working condition, and the overall design is compact and reasonable, improves transmission efficiency and service life. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the perspective view of the utility model multistage reduction synchronous pulley;

[0018] Fig. 2 It is the right view of the utility model multistage reduction synchronous pulley;

[0019] Fig. 3 It is the explosion drawing of the utility model multistage reduction synchronous pulley.

[0020] The input wheel 10, input shaft 11, mounting ring 112, mounting tooth 113, input sealing ring 12, sealing convex ring 121, input bearing 13, input tooth 14, input limit tooth 15, input cam 16 are explained to the attached drawing mark:

[0021] Reduction gear 20, reduction gear 21, first reduction gear 22, first reduction gear 221, first reduction strip 223, second reduction gear 23, second reduction gear 231, second reduction strip 232, reduction cooperation ring 24, cooperation block 25, first cooperation groove 26, second cooperation groove 27;

[0022] Output wheel 30, output tooth 31, output cam 311, output limit tooth 32, output snap ring 33, first output sleeve 34, second output sleeve 35. DETAILED DESCRIPTION

[0023] In order to facilitate understanding the utility model, below will refer to relevant drawing and carry out more comprehensive description to the utility model. The preferred embodiment of the utility model is given in the drawing. However, the utility model can be realized in many different forms, and is not limited to the embodiment described in this paper. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] like Figs. 1-3 As shown in the embodiment of this utility model, a multi-stage reduction synchronous belt pulley includes an input pulley 10, a reduction pulley 20, and an output pulley 30. The reduction pulley 20 is disposed between the input pulley 10 and the output pulley 30, and is used to reduce the speed of the input pulley 10 and the output pulley 30. The input pulley 10 includes an input shaft 11, an input sealing ring 12, and an input bearing 13. The outer periphery of the input bearing 13 is provided with input teeth 14, and the side of the input bearing 13 near the input teeth 14 is provided with input limiting teeth 15. The reduction pulley 20 is provided with reduction teeth 21, and there are multiple reduction teeth 21 arranged around the outer periphery of the reduction pulley 20. The output pulley 30 includes output teeth 31, and the side of the output pulley 30 near the output teeth 31 is provided with output limiting teeth 32. The input limiting teeth 15 and the output limiting teeth 32 cooperate with the multiple reduction teeth 21 to perform multi-stage speed reduction on the input pulley 10 and the output pulley 30. In this embodiment, the input wheel 10 integrates the input shaft 11, sealing ring, and input bearing 13, and is equipped with input teeth 14 and input limiting teeth 15. The input teeth 14 drive the output teeth 31 to rotate, ensuring stable transmission. The input teeth 14 are equipped with input sealing rings 12 to ensure smooth input and sealing. Multiple reduction teeth 21 are arranged around the outer circumference of the reduction wheel 20 to effectively increase the reduction ratio. The input limiting teeth 15 and output limiting teeth 32 are precisely matched with the reduction teeth 21 to refine the reduction process, improve transmission efficiency and stability, reduce output speed, and meet the precise transmission requirements under complex working conditions. The overall design is compact and reasonable, improving transmission efficiency and service life.

[0027] like Fig. 1As shown, the input shaft 11 is sleeved with a mounting ring 112, and a plurality of mounting teeth 113 are arranged on the mounting ring 112, and the plurality of mounting teeth 113 are arranged on the mounting ring 112, and the input shaft 11 is used for sequentially mounting the input wheel 10, the reduction wheel 20 and the output wheel 30, and limiting through the mounting ring 112 and the mounting teeth 113. In this embodiment, the mounting ring 112 is sleeved on the input shaft 11, and a plurality of uniformly distributed mounting teeth 113 are arranged on the mounting ring 112, which realizes effective limiting of the multi-stage reduction synchronous belt wheel assembly. The ring arrangement structure of the mounting teeth 113 not only enhances the connection stability between the mounting ring 112 and the input shaft 11, but also ensures the accurate positioning of the input wheel 10, the reduction wheel 20 and the output wheel 30 during the installation process, simplifies the installation process of the multi-stage reduction synchronous belt wheel, improves the assembly efficiency, and at the same time ensures the coaxiality between the wheels and the stability of the transmission.

[0028] One end of the input sealing ring 12 is provided with a sealing convex ring 121, one end of the sealing convex ring 121 faces the input shaft 11, the outer periphery of the sealing convex ring 121 is arc-shaped, and the input sealing ring 12 is a sealing rubber ring. In this embodiment, the sealing performance between the sealing convex ring 121 and the input shaft 11 is effectively enhanced, and the end of the sealing convex ring 121 facing the input shaft 11 can be closely fitted to reduce the risk of leakage, optimize the stress distribution of the sealing ring, improve the wear resistance, and also ensure the stable sealing effect under different working conditions.

[0029] One end of the input wheel 10 is provided with an input cam 16, one end of the input cam 16 abuts against the reduction wheel 20, a plurality of input limiting teeth 15 are arranged, a plurality of input limiting teeth 15 are arranged on the outer periphery of the input cam 16, and one end of the input limiting tooth 15 is matched with the reduction tooth 21. In this embodiment, the input cam 16 is arranged to realize effective transmission of power input, and the abutment of one end of the input cam 16 with the reduction wheel 20 ensures the stability and reliability of the transmission; and the plurality of input limiting teeth 15 arranged on the outer periphery of the input cam 16 not only enhances the stability of the structure, but also realizes accurate reduction function through precise matching with the reduction tooth 21.

[0030] As Figs. 2-3As shown, the speed reducer 20 comprises a first speed reduction gear 22, a second speed reduction gear 23, and a speed reduction fitting ring 24; the speed reduction fitting ring 24 is provided with a fitting block 25, the first speed reduction gear 22 is provided with a first fitting groove 26 corresponding to the fitting block 25, the second speed reduction gear 23 is provided with a second fitting groove 27 corresponding to the fitting block 25, and the first fitting groove 26 and the second fitting groove 27 are fitted in the fitting block 25 to form an integrated structure by fitting the first speed reduction gear 22 and the second speed reduction gear 23 in the speed reducer through the speed reduction fitting ring 24. In this embodiment, the first speed reduction gear 22, the second speed reduction gear 23 and the speed reduction fitting ring 24 realize efficient multi-stage speed reduction function, and the fitting block 25 on the speed reduction fitting ring 24 is designed ingeniously and precisely fitted with the first fitting groove 26 and the second fitting groove 27 on the first and second speed reduction gears 23, which ensures stable connection between the gears, and through the bridge effect of the speed reduction fitting ring 24, the first and second speed reduction gears 23 are tightly combined in the speed reducer to form a solid integrated structure, thereby effectively enhancing the carrying capacity and service life of the speed reduction system.

[0031] The first speed reduction gear 22 comprises a plurality of first speed reduction teeth 221, and a first speed reduction strip 223 is arranged between two first speed reduction teeth 221; the first speed reduction teeth 221 abut against the input limiting teeth 15 and reduce the speed of the input wheel 10 through the first speed reduction strip 223. In this embodiment, the first speed reduction gear 22 realizes effective speed reduction function, and a plurality of first speed reduction teeth 221 are arranged on the first speed reduction gear 22, and a first speed reduction strip 223 is arranged between the teeth, which can increase the contact area with the input limiting teeth 15 and improve the stability of transmission; when the input wheel 10 abuts against the first speed reduction teeth 221, the first speed reduction strip 223 plays a key role in slowing down the speed of the input wheel 10, thereby realizing the speed reduction effect; the speed reduction efficiency is improved, and the synchronous pulley runs stably in the multi-stage speed reduction process, effectively prolonging the service life of the equipment.

[0032] The second speed reduction gear 23 comprises a plurality of second speed reduction teeth 231, and a second speed reduction strip 232 is arranged between two second speed reduction teeth 231; the second speed reduction teeth 231 abut against the output limiting teeth 32 and reduce the speed of the output wheel 30 through the second speed reduction strip 232. In this embodiment, a plurality of second speed reduction teeth 231 are arranged, and a second speed reduction strip 232 is arranged therebetween, which realizes stable speed reduction of the output wheel 30, and the second speed reduction teeth 231 abut against the output limiting teeth 32 tightly, which ensures the accuracy and reliability of power transmission, and reduces the speed of the output wheel 30 through physical obstruction, thereby achieving the purpose of multi-stage speed reduction.

[0033] The first reduction gear 221, the second reduction gear 231, the input limiting tooth 15 and the output limiting tooth 32 are all triangular in shape. In this embodiment, the triangular shape enhances the stability of the meshing between the teeth and the transmission efficiency, effectively reducing the energy loss during transmission.

[0034] The output wheel 30 comprises an output snap ring 33, a first output sleeve 34 and a second output sleeve 35, the first output sleeve 34 and the output snap ring 33 are arranged between the output wheel 30 and the second reduction gear 23, and the second output sleeve 35 is arranged between the first reduction gear 22 and the input wheel 10, the first output sleeve 34 and the second output sleeve 35 are used to set the input wheel 10 and the reduction wheel 20 on the input shaft 11. In this embodiment, the first output sleeve 34 and the output snap ring 33 are arranged between the output wheel 30 and the second reduction gear 23, effectively transmitting torque; the second output sleeve 35 is located between the first reduction gear 22 and the input wheel 10, ensuring smooth power transmission, simplifying the installation process, and enhancing the stability and efficiency of the reduction system.

[0035] The output tooth 31 is provided with an output cam 311 at one end, and a plurality of output limiting teeth 32 are arranged around the output cam 311, and the output limiting tooth 32 is in abutment with the second reduction gear 23 at one end of the output cam 311. In this embodiment, the plurality of output limiting teeth 32 enhance the stability and precision of the output end, ensuring the reliability of power transmission; and the output cam 311 is in abutment with the second reduction gear 23 at one end, which optimizes the transmission efficiency, reduces energy loss, improves the performance of the transmission system, and enhances its durability and stability.

[0036] The utility model provides a multistage reduction synchronous pulley, including input wheel 10, reduction wheel 20 and output wheel 30, the reduction wheel 20 is arranged between input wheel 10 and output wheel 30, and the reduction wheel 20 is used for the input wheel 10 and output wheel 30 to reduce, the input wheel 10 includes input shaft 11, input sealing ring 12 and input bearing 13, the outer periphery of input bearing 13 is provided with input tooth 14, and the side close to input tooth 14 is provided with input limiting tooth 15, the reduction wheel 20 is provided with reduction tooth 21, and the reduction tooth 21 is provided with a plurality of, and a plurality of reduction tooth 21 is annularly arranged on the outer periphery of reduction wheel 20, the output wheel 30 includes output tooth 31, and the side close to output tooth 31 of output wheel 30 is provided with output limiting tooth 32, and the input limiting tooth 15 and output limiting tooth 32 cooperate with a plurality of reduction tooth 21 to carry out multistage reduction to input wheel 10 and output wheel 30, in the embodiment, input shaft 11, sealing ring and input bearing 13 are integrated through input wheel 10, and are provided with input tooth 14 and input limiting tooth 15, are driven output tooth 31 rotation through input tooth 14, ensure stable transmission, and input tooth 14 is provided with input sealing ring 12, guarantees the stability and sealing property of input, a plurality of reduction tooth 21 is annularly arranged on the outer periphery of reduction wheel 20, effectively increases the reduction ratio, and input limiting tooth 15 and output limiting tooth 32 are precisely matched with reduction tooth 21 and refine the reduction process, improve transmission efficiency and stability, reduce output speed, satisfy the accurate transmission demand under the complex working condition, and the overall design is compact and reasonable, improves transmission efficiency and service life.

[0037] The above embodiments only express several embodiments of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, a number of variations and improvements can be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be according to the appended claims.

Claims

1. A multi-stage reduction synchronous belt pulley, characterized in that: It includes an input wheel, a reduction wheel, and an output wheel, wherein the reduction wheel is disposed between the input wheel and the output wheel, and the reduction wheel is used to reduce the speed of the input wheel and the output wheel; The input wheel includes an input shaft, an input sealing ring, and an input bearing. The outer periphery of the input bearing is provided with input teeth, and the side of the input bearing near the input teeth is provided with input limiting teeth. The reduction wheel is provided with reduction teeth, and multiple reduction teeth are provided, with multiple reduction teeth arranged in a ring around the outer periphery of the reduction wheel; The output wheel includes an output tooth, and an output limiting tooth is provided on the side of the output wheel near the output tooth. The input limiting tooth and the output limiting tooth cooperate with multiple deceleration teeth to perform multi-stage deceleration on the input wheel and the output wheel.

2. The multi-stage reduction synchronous belt pulley according to claim 1, characterized in that: An installation ring is fitted onto the input shaft, and multiple installation teeth are provided on the installation ring. The multiple installation teeth are arranged around the installation ring. The input shaft is used to install the input wheel, the reduction wheel and the output wheel in sequence, and is limited by the installation ring and the installation teeth.

3. The multi-stage reduction synchronous belt pulley according to claim 2, characterized in that: One end of the input sealing ring is provided with a sealing protrusion, one end of the sealing protrusion faces the input shaft, the outer circumference of the sealing protrusion is arc-shaped, and the input sealing ring is a sealing rubber ring.

4. The multi-stage reduction synchronous belt pulley according to claim 3, characterized in that: An input cam is provided at one end of the input wheel, and one end of the input cam abuts against the reduction wheel. Multiple input limiting teeth are provided, and the multiple input limiting teeth are arranged around the outer periphery of the input cam. One end of the input limiting teeth cooperates with the reduction teeth.

5. The multi-stage reduction synchronous belt pulley according to claim 1, characterized in that: The reduction gear includes a first reduction gear, a second reduction gear, and a reduction engagement ring; the reduction engagement ring is provided with a engagement block, the first reduction gear is provided with a first engagement groove corresponding to the engagement block, the second reduction gear is provided with a second engagement groove corresponding to the engagement block, the first engagement groove and the second engagement groove are engaged with the engagement block to form an integral structure of the first reduction gear and the second reduction gear in the reduction gear through the reduction engagement ring.

6. The multi-stage reduction synchronous belt pulley according to claim 5, characterized in that: The first reduction gear includes a first reduction tooth, and multiple first reduction teeth are provided. A first reduction bar is provided between two first reduction teeth. The first reduction teeth abut against the input limit teeth and reduce the speed of the input wheel through the first reduction bar.

7. The multi-stage reduction synchronous belt pulley according to claim 6, characterized in that: The second reduction gear includes a second reduction tooth, and multiple second reduction teeth are provided. A second reduction bar is provided between two second reduction teeth. The second reduction teeth abut against the output limit teeth and reduce the speed of the output wheel through the second reduction bar.

8. The multi-stage reduction synchronous belt pulley according to claim 7, characterized in that: One end of the first deceleration tooth, the second deceleration tooth, the input limiting tooth, and the output limiting tooth are all triangular structures.

9. The multi-stage reduction synchronous belt pulley according to claim 1, characterized in that: The output wheel includes an output retaining ring, a first output sleeve, and a second output sleeve. The first output sleeve and the output retaining ring are disposed between the output wheel and the second reduction gear, and the second output sleeve is disposed between the first reduction gear and the input wheel. The first output sleeve and the second output sleeve are used to sleeve the input wheel and the reduction gear onto the input shaft.

10. The multi-stage reduction synchronous belt pulley according to claim 9, characterized in that: One end of the output tooth is provided with an output cam, and multiple output limiting teeth are provided. The multiple output limiting teeth are ringed on the output cam, and one end of the output cam abuts against the second reduction gear.

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