Cylindrical cam transmission device for reciprocating motion

Abstract

The utility model provides a cylindrical cam transmission device for reciprocating motion, which belongs to the field of mechanical transmission and motion control, and comprises a cylindrical cam, a guide rail is arranged above the cylindrical cam, a cylindrical follower is arranged on the guide rail, the cylindrical follower is embedded in the guide rail, and the cylindrical cam is arranged on the guide rail. A guide part is arranged on a shaft of the cylindrical follower, a ball bearing is arranged on one side of the guide part, the cylindrical follower is connected with the guide part through the ball bearing, a driving motor is arranged below the cylindrical cam, and an output shaft of the driving motor is connected with the cylindrical cam. By the adoption of the cylindrical cam transmission device for reciprocating motion, the problems that an existing special experimental device is limited in testing of transmission performance and abrasion performance of reciprocating motion parts, dynamic performance and long-term reliability are difficult to evaluate due to low testing precision, and complex experimental requirements are difficult to meet due to insufficient motion trail flexibility are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical drive and motion control field especially is a kind of cylindrical cam transmission device for reciprocating motion. BACKGROUND

[0002] In the field of mechanical drive and motion control, reciprocating motion trajectory is widely used in various mechanical equipment, and its performance is directly related to the stability and service life of the equipment. Especially in high-precision and complex working conditions, it is particularly important to conduct in-depth research on the motion characteristics and wear behavior of moving parts. However, the currently available experimental equipment is mostly limited to testing single motion mode, and the performance testing and research means of parts under complex motion conditions (such as reciprocating motion and variable speed loading) are not satisfactory.

[0003] Cam mechanism, as a common control device in mechanical transmission, is often used to realize periodic and reciprocating motion due to its simple structure and smooth motion characteristics. Unfortunately, although cam mechanism has these advantages, experimental devices combining cam mechanism with reciprocating motion test have not been widely used. Currently, crank mechanism and hydraulic cylinder are still the main transmission mechanisms for linear reciprocating motion, but they still have certain limitations in meeting complex test requirements, such as lack of special experimental equipment for testing the transmission performance and wear performance of reciprocating motion parts, low test precision difficult to evaluate dynamic performance and long-term reliability, and insufficient flexibility of motion trajectory difficult to meet complex experimental requirements.

[0004] Therefore, it is necessary to develop a reciprocating motion mechanism based on cylindrical cam drive, which can realize accurate motion control and performance test, provide a reliable platform for research on transmission efficiency, friction characteristics and wear law, and meet the complex experimental requirements, thereby providing strong support for technical research and innovation in related fields. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a cylindrical cam transmission device for reciprocating motion, which solves the problems of existing special experimental devices, such as limited testing of transmission performance and wear performance of reciprocating motion parts, low test precision difficult to evaluate dynamic performance and long-term reliability, and insufficient flexibility of motion trajectory difficult to meet complex experimental requirements.

[0006] To achieve the above objectives, this utility model provides a reciprocating cylindrical cam transmission device, including a cylindrical cam, a guide rail is provided above the cylindrical cam, a cylindrical follower is provided on the guide rail, the cylindrical follower is embedded in the guide rail, a guide member is provided on the shaft of the cylindrical follower, a ball bearing is provided on one side of the guide member, the cylindrical follower is connected to the guide member through the ball bearing, and a drive motor is provided below the cylindrical cam, the output shaft of the drive motor is connected to the cylindrical cam.

[0007] Preferably, the guide rail is an undulating groove track on the surface of a cylindrical cam, and the guide rail extends circumferentially along the surface of the cylindrical cam.

[0008] Preferably, the guide member includes a guide post and a guide sleeve, the guide post being disposed between the cylindrical follower and the ball bearing, and the guide sleeve being sleeved on the outside of the guide post.

[0009] Preferably, the drive motor and the cylindrical cam are connected by a key.

[0010] Preferably, the guide sleeve surface is inverted T-shaped, a threaded hole is provided below the guide sleeve, and protrusions are distributed in a ring inside the guide sleeve.

[0011] Preferably, a cut is provided below the guide post, and the cut matches the outer ring of the ball bearing.

[0012] Therefore, the present invention employs the above-mentioned cylindrical cam transmission device for reciprocating motion, and the technical effects are as follows:

[0013] 1. Highly efficient and stable reciprocating motion: A highly efficient reciprocating motion mechanism is achieved through the cooperation of a cylindrical cam and a cylindrical follower. The undulating groove track on the surface of the cylindrical cam provides precise guidance for the cylindrical follower, ensuring the stability and accuracy of the motion.

[0014] 2. Reduced friction and wear: By connecting the cylindrical follower to the guide component through ball bearings, friction and wear during the movement process are effectively reduced, extending the service life of the device. At the same time, the rolling contact method of the ball bearings also improves the smoothness and efficiency of the movement.

[0015] 3. Flexible driving method: The drive motor and the cylindrical cam are connected by a key. This connection method is not only strong and reliable, but also makes the driving method more flexible. The appropriate motor type and power can be selected according to actual needs to meet the power requirements under different working conditions. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Fig. 2This is a schematic diagram of the cylindrical cam structure of this utility model;

[0018] Fig. 3 This is a schematic diagram of the guide sleeve structure of this utility model.

[0019] Figure Labels

[0020] 1. Cylindrical cam; 2. Guide rail; 3. Cylindrical follower; 4. Guide component; 5. Ball bearing; 6. Drive motor; 7. Guide post; 8. Guide sleeve. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0023] Example 1

[0024] like Figs. 1-3 As shown, this utility model provides a reciprocating cylindrical cam transmission device, including a cylindrical cam 1, which is a rotating component with a special surface shape. An undulating guide rail 2 is formed on the surface of the cylindrical cam 1, extending circumferentially along its surface. The cylindrical cam 1 is the core component of the transmission device; it rotates to drive a cylindrical follower 3 to move along the guide rail 2, thereby achieving reciprocating motion. The undulating grooved track provides precise guidance for the cylindrical follower 3, ensuring the stability and accuracy of the motion.

[0025] A cylindrical follower 3 is embedded in the guide rail 2. The cylindrical follower 3 is a moving component that contacts the surface of the cylindrical cam 1. A guide member 4 is provided on the shaft of the cylindrical follower 3, and a ball bearing 5 is provided on one side of the guide member 4. The ball bearing 5 is typically composed of inner and outer rings, rolling elements, and a cage. In this device, the ball bearing 5 is used to connect the cylindrical follower 3 and the guide member 4. The cylindrical follower 3 moves along the guide rail 2 of the cylindrical cam 1 to achieve reciprocating motion. The ball bearing 5 reduces friction and wear during the motion through rolling contact, extending the service life of the device and improving the smoothness and efficiency of the motion.

[0026] The guide component 4 comprises two parts: a guide post 7 and a guide sleeve 8. The guide post 7 is positioned between the cylindrical follower 3 and the ball bearing 5, while the guide sleeve 8 is fitted over the outer side of the guide post 7. The guide sleeve 8 has an inverted T-shaped surface with a threaded hole at the bottom and annular protrusions distributed inside. The guide component 4 guides and supports the movement of the cylindrical follower 3, ensuring its stable movement on the surface of the cylindrical cam 1. A notch is provided at the bottom of the guide post 7, the shape and size of which match the outer ring of the ball bearing 5, combining the guiding function of the guide post 7 with the rotational flexibility of the ball bearing 5, resulting in smoother and more precise movement. The design of the guide sleeve 8 increases the stability of the connection with the installation position, while the protrusions reduce friction and enhance the guiding effect.

[0027] A drive motor 6 is located below the cylindrical cam 1, and the output shaft of the drive motor 6 is connected to the cylindrical cam 1. The output shaft of the drive motor 6 is connected to the cylindrical cam 1 via a key connection, providing rotational power to the cylindrical cam 1, thereby driving the entire transmission device to achieve reciprocating motion. The key connection method is not only robust and reliable, but also makes the driving method more flexible, allowing for the selection of appropriate motor type and power according to actual needs.

[0028] Therefore, this utility model adopts the above-mentioned cylindrical cam transmission device for reciprocating motion. Through the cooperation of the cylindrical cam and the cylindrical follower, a highly efficient reciprocating motion mechanism is realized. The introduction of ball bearings reduces friction and wear, and extends the service life of the device. The key connection between the drive motor and the cylindrical cam makes the driving method more flexible.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A cylindrical cam transmission device for reciprocating motion, characterized in that, The device includes a cylindrical cam, a guide rail is provided above the cylindrical cam, a cylindrical follower is provided on the guide rail and embedded in the guide rail, a guide member is provided on the shaft of the cylindrical follower, a ball bearing is provided on one side of the guide member, the cylindrical follower is connected to the guide member through the ball bearing, and a drive motor is provided below the cylindrical cam, the output shaft of the drive motor is connected to the cylindrical cam.

2. The reciprocating cylindrical cam transmission device according to claim 1, characterized in that, The guide rail is an undulating groove track on the surface of a cylindrical cam, and the guide rail extends circumferentially along the surface of the cylindrical cam.

3. The reciprocating cylindrical cam transmission device according to claim 1, characterized in that, The guide component includes a guide post and a guide sleeve. The guide post is disposed between the cylindrical follower and the ball bearing, and the guide sleeve is sleeved on the outside of the guide post.

4. The reciprocating cylindrical cam transmission device according to claim 1, characterized in that, The drive motor and the cylindrical cam are connected by a key.

5. A cylindrical cam transmission device for reciprocating motion according to claim 3, characterized in that, The guide sleeve has an inverted T-shaped surface, a threaded hole is provided at the bottom of the guide sleeve, and protrusions are distributed in a ring inside the guide sleeve.

6. A cylindrical cam transmission device for reciprocating motion according to claim 3, characterized in that, A cutout is provided below the guide post, and the cutout matches the outer ring of the ball bearing.

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