Improved transverse changing and speed changing equipment

Abstract

The utility model relates to the technical field of flexible material processing equipment, in particular to improved transverse changing and speed changing equipment which is characterized by comprising a rack, a main motor is arranged on one side outside the rack, a plurality of auxiliary motors are arranged on the two sides outside the rack, a first planetary reducer is arranged at the output end of the main motor, and a second planetary reducer is arranged at the output end of the auxiliary motor. The output end of the first planetary reducer is in transmission connection with one end of the main transmission shaft, a plurality of driving belt wheels are arranged on the main transmission shaft, planetary reducer assemblies are arranged at the output ends of the auxiliary motors, input belt wheels and output belt wheels are arranged on the planetary reducer assemblies, and the driving belt wheels are in transmission connection with the input belt wheels through first transmission belts. A plurality of auxiliary transmission shaft sleeves are arranged on the two sides of the machine frame, driven belt wheels are arranged on the auxiliary transmission shaft sleeves, and the output belt wheel is in transmission connection with the driven belt wheels through a second transmission belt. According to the utility model, transmission connection is carried out by adopting belt transmission, so that the noise is lower during operation, the installation and the maintenance are simpler, and the cost is relatively lower.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible material processing equipment, and particularly relates to an improved variable transverse and variable speed device. Background Technique

[0002] Existing variable transverse and variable speed devices are divided into two categories. One is mechanical, which realizes speed change through mechanical transmission. The other directly uses a servo motor for speed change. The advantage of the servo type is its simple structure and convenient code change. However, it has a big defect that the equipment speed cannot be increased too fast. The reason for the inability to increase the speed is the regeneration load alarm of the servo motor. The generation of the regeneration load is because when the servo motor is decelerating, it needs to absorb the mechanical energy possessed by the load. When the mechanical energy of the load is too large and exceeds the limit that the servo motor can absorb, the motor alarms and stops to prevent damage. The faster the equipment runs, the greater the mechanical energy it has. The regeneration load makes the equipment unable to run too fast, even though there is still a lot of unused motor torque.

[0003] To solve this problem, the utility model patent with the authorized publication number of CN220581613U provides a speed superposition type variable transverse and variable speed device. The speed superposition type variable transverse and variable speed device provided by this utility model patent avoids the influence of the regeneration load on the servo motor by different movement modes of multiple motors and uses a planetary reducer to superpose different speeds for speed change, thereby increasing the upper limit of the equipment speed of the servo type speed change. In this speed superposition type variable transverse and variable speed device, gear transmission is adopted between the common gear on the common shaft and the external gear ring of the planetary reducer, and between the output gear of the planetary reducer and the transmission gear on the transmission shaft. However, since gear transmission may generate relatively large noise during operation, and the manufacturing and installation accuracy requirements of gear transmission are relatively high, the cost is relatively high, so it needs to be further improved. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an improved variable transverse and variable speed device which uses belt transmission for transmission connection, can make the noise during operation relatively small, and is also simpler in installation and maintenance, with a relatively low cost.

[0005] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: An improved variable transverse speed device includes a frame, a transmission swing arm, a variable transverse component, a main transmission shaft, a secondary transmission shaft sleeve, a main motor, and a secondary motor. A main motor is provided on one side outside the frame, and a plurality of secondary motors are provided on both sides outside the frame. The output end of the main motor is provided with a first planetary reducer, and the output end of the first planetary reducer is drivingly connected to one end of the main transmission shaft. The other end of the main transmission shaft passes through and extends to the other side outside the frame. A plurality of driving pulleys are installed on both sides outside the frame on the main transmission shaft. The output ends of the plurality of secondary motors are all provided with planetary reducer assemblies. The planetary reducer assemblies are provided with input pulleys and output pulleys. The driving pulleys are drivingly connected to the corresponding input pulleys through a first transmission belt. A plurality of secondary transmission shaft sleeves are provided on both sides of the frame. The plurality of secondary transmission shaft sleeves are sequentially sleeved and coaxially rotatably connected. The outermost secondary transmission shaft sleeve is rotatably installed on the frame through a pedestal bearing. A plurality of driven pulleys located outside the frame are installed on the plurality of secondary transmission shaft sleeves. The output pulleys are drivingly connected to the corresponding driven pulleys through a second transmission belt. A plurality of transmission swing arms located inside the frame are installed on the plurality of secondary transmission shaft sleeves. The plurality of transmission swing arms are evenly spaced along the circumferential direction of the secondary transmission shaft sleeves. One end of each of the plurality of transmission swing arms is installed with a variable transverse component.

[0006] Further, it further includes auxiliary swing arms. A plurality of auxiliary swing arms are provided on both sides inside the frame. The plurality of auxiliary swing arms are evenly spaced along the circumferential direction of the main transmission shaft and are rotatably installed on the main transmission shaft. One end of the auxiliary swing arm is connected to the corresponding variable transverse component.

[0007] Further, two secondary motors are provided on both sides outside the frame, two secondary transmission shaft sleeves are provided on both sides of the frame, two transmission swing arms and two auxiliary swing arms are provided on both sides inside the frame, and two driving pulleys are installed on both sides outside the frame on the main transmission shaft.

[0008] Further, the main transmission shaft is rotatably connected to the innermost secondary transmission shaft sleeve.

[0009] Further, the driving pulley, the input pulley, the output pulley, and the driven pulley are all synchronous toothed belt pulleys, and the first transmission belt and the second transmission belt are both synchronous toothed belts.

[0010] Further, the planetary reducer assembly includes a second planetary reducer, a base, a front bearing, and a rear bearing. The front and rear ends of the second planetary reducer are respectively rotatably installed in the base through the front bearing and the rear bearing. An input pulley is installed on the outer shell of the second planetary reducer. A notch corresponding to the input pulley is provided on the base. One end of the second planetary reducer is the motor input end, and the other end of the second planetary reducer is provided with an output shaft, and an output pulley is installed on the output shaft.

[0011] Further, the first planetary speed reducer is fixedly installed on the frame through the first mounting seat, and the base is fixedly installed on the frame through the second mounting seat.

[0012] Further, both the main motor and the auxiliary motor are servo motors.

[0013] Further, the main motor operates at a constant speed, and the auxiliary motor operates at a variable speed with forward and reverse rotations.

[0014] As can be seen from the above description, an improved variable cross-speed device provided by the present utility model has the following beneficial effects: Through the settings of the driving pulley, the first transmission belt, and the input pulley, it is convenient to realize the belt drive connection between the main transmission shaft and the planetary speed reducer assembly. Through the settings of the output pulley, the second transmission belt, and the driven pulley, it is convenient to realize the belt drive connection between the planetary speed reducer assembly and the auxiliary transmission shaft sleeve. In this way, by adopting belt drive for the transmission connection, the running noise can be relatively small, and the installation and maintenance are also simpler, with relatively low costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of an improved variable cross-speed device of the present utility model.

[0016] Figure 2 is Figure 1 a partially enlarged schematic view of part A in

[0017] Figure 3 a schematic structural diagram of the planetary speed reducer assembly.

[0018] In the figure: 11 - driving swing arm; 12 - auxiliary swing arm; 2 - variable cross assembly; 3 - auxiliary transmission shaft sleeve; 31 - pillow block bearing; 41 - main motor; 42 - auxiliary motor; 5 - first planetary speed reducer; 61 - driving pulley; 62 - input pulley; 63 - output pulley; 64 - first transmission belt; 65 - driven pulley; 66 - second transmission belt; 7 - planetary speed reducer assembly; 71 - second planetary speed reducer; 72 - base; 721 - notch; 73 - front bearing; 74 - rear bearing; 75 - motor input end; 76 - output shaft; 8 - main transmission shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present utility model through specific embodiments.

[0020] Such as Figures 1 to 3As shown in the figure, an improved variable cross-section and variable speed device of the present utility model includes a frame, a transmission swing arm 11, a variable cross-section component 2, a main transmission shaft 8, a secondary transmission shaft sleeve 3, a main motor 41, and a secondary motor 42. The main motor 41 is provided on one side outside the frame, and a plurality of the secondary motors 42 are provided on both sides outside the frame. The output end of the main motor 41 is provided with a first planetary reducer 5, and the output end of the first planetary reducer 5 is in transmission connection with one end of the main transmission shaft 8. The other end of the main transmission shaft 8 passes through and extends to the other side outside the frame. A plurality of driving pulleys 61 are installed on both sides outside the frame on the main transmission shaft 8. The output ends of the plurality of secondary motors 42 are all provided with planetary reducer assemblies 7. The planetary reducer assemblies 7 are provided with input pulleys 62 and output pulleys 63. The driving pulley 61 is in transmission connection with the corresponding input pulley 62 through a first transmission belt 64. A plurality of the secondary transmission shaft sleeves 3 are provided on both sides of the frame. The plurality of secondary transmission shaft sleeves 3 are sequentially sleeved and rotatably connected coaxially. The outermost secondary transmission shaft sleeve 3 is rotatably installed on the frame through a pedestal bearing 31. A plurality of driven pulleys 65 are installed on the plurality of secondary transmission shaft sleeves 3 outside the frame. The output pulley 63 is in transmission connection with the corresponding driven pulley 65 through a second transmission belt 66. A plurality of the transmission swing arms 11 are installed on the plurality of secondary transmission shaft sleeves 3 inside the frame. The plurality of transmission swing arms 11 are evenly spaced along the circumferential direction of the secondary transmission shaft sleeve 3. One end of each of the plurality of transmission swing arms 11 is installed with the variable cross-section component 2.

[0021] Through the settings of the driving pulley 61, the first transmission belt 64, and the input pulley 62, it is convenient to realize the belt transmission connection between the main transmission shaft 8 and the planetary reducer assembly 7. Through the settings of the output pulley 63, the second transmission belt 66, and the driven pulley 65, it is convenient to realize the belt transmission connection between the planetary reducer assembly 7 and the secondary transmission shaft sleeve 3. In this way, by adopting belt transmission for the transmission connection, the noise during operation can be relatively small, and the installation and maintenance are also simpler, and the cost is relatively low.

[0022] The improved variable cross-section and variable speed device further includes auxiliary swing arms 12. A plurality of the auxiliary swing arms 12 are provided on both sides inside the frame. The plurality of auxiliary swing arms 12 are evenly spaced along the circumferential direction of the main transmission shaft 8 and are rotatably installed on the main transmission shaft 8. One end of the auxiliary swing arm 12 is connected to the corresponding variable cross-section component 2. Correspondingly, the transmission swing arm 11 and the auxiliary swing arm 12 are respectively arranged on both sides of the variable cross-section component 2 to further improve the stability of the variable cross-section component 2 during operation.

[0023] Preferably, two auxiliary motors 42 are provided on both sides outside the frame, two auxiliary transmission sleeves 3 are provided on both sides of the frame, two transmission swing arms 11 and two auxiliary swing arms 12 are provided on both sides inside the frame, and two driving pulleys 61 are installed on both sides outside the frame on the main transmission shaft 8.

[0024] Correspondingly, the main transmission shaft 8 is rotationally connected to the auxiliary transmission sleeve 3 located at the innermost side.

[0025] Preferably, the driving pulley 61, the input pulley 62, the output pulley 63, and the driven pulley 65 are all synchronous toothed pulleys, and the first transmission belt 64 and the second transmission belt 66 are all synchronous toothed belts, thereby further ensuring precise transmission and ensuring higher transmission efficiency.

[0026] Correspondingly, the planetary reducer assembly 7 includes a second planetary reducer 71, a base 72, a front bearing 73 and a rear bearing 74. The front and rear ends of the second planetary reducer 71 are rotatably mounted in the base 72 through the front bearing 73 and the rear bearing 74 respectively. The input pulley 62 is mounted on the outer shell of the second planetary reducer 71. The base 72 is provided with a notch 721 corresponding to the input pulley 62. One end of the second planetary reducer 71 is a motor input end 75. The other end of the second planetary reducer is provided with an output shaft 76. The output shaft 76 is provided with the output pulley 63. Through the setting of the notch 721, it is convenient for the first transmission belt 64 to pass through the notch 721 of the base 72 and be wrapped around the input pulley 62 for transmission connection.

[0027] The first planetary reducer 5 is fixedly mounted on the frame via a first mounting seat, and the base 72 is fixedly mounted on the frame via a second mounting seat.

[0028] Preferably, the main motor 41 and the auxiliary motor 42 are both servo motors, the main motor 41 performs constant speed motion, and the auxiliary motor 42 performs forward and reverse speed-changing motion.

[0029] In this way, the mechanism performing the accelerating motion can transfer mechanical energy to the mechanism performing the decelerating motion. Depending on the situation, the regenerative load can be reduced to at least one twentieth of the original value, which means that the regenerative load is no longer the main reason why the equipment cannot run fast. Under the same usage conditions, the speed change performance of the improved transverse speed change equipment is greatly improved, the energy consumption is greatly reduced, the temperature of the main motor 41 and the auxiliary motor 42 is also greatly reduced, and the service life is guaranteed.

[0030] The use method of the improved transverse speed changing device described in the utility model is as follows:

[0031] When the auxiliary motor 42 is started to perform variable speed motion (such as variable speed motion that changes according to the cosine law), and the main motor 41 is not started, the auxiliary motor 42 is connected to the driven pulley 65 on the auxiliary transmission shaft sleeve 3 through the output pulley 63 on the planetary reducer assembly 7 and the second transmission belt 66, thereby driving the transmission swing arm 11 to swing left and right; when the auxiliary motor 42 is not started and the main motor 41 is started to perform uniform speed motion, the main motor 41 is connected to the input pulley 62 on the second planetary reducer 71 through the first planetary reducer 5, the driving pulley 61 on the main transmission shaft 8, the first transmission belt 64, thereby driving the second planetary reducer 71 to perform uniform speed motion, and then through the output pulley 63, the second transmission belt 66 and The driven pulley 65 on the auxiliary transmission shaft sleeve 3 is connected for transmission, thereby driving the transmission swing arm 11 to rotate at a uniform speed; when the auxiliary motor 42 and the main motor 41 work at the same time, the movements of the auxiliary motor 42 and the main motor 41 are simultaneously input into the second planetary reducer 71, and the combined movement is output by the output shaft 76 of the second planetary reducer 71, and is connected for transmission with the driven pulley 65 on the auxiliary transmission shaft sleeve 3 through the output pulley 63 and the second transmission belt 66 to drive the transmission swing arm 11 to rotate. The transmission swing arm 11 will superimpose the speed change movement of the auxiliary motor 42 on the basis of the uniform speed movement, thereby realizing speed change. In this way, the speed change of the transmission swing arm 11 is completed by speed superposition to increase the speed upper limit of the equipment.

[0032] The above are only some specific implementation methods of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. An improved variable transverse speed device, characterized in that: It includes a frame, a transmission swing arm, a transverse changing assembly, a main transmission shaft, a secondary transmission shaft sleeve, a main motor and a secondary motor. The main motor is provided on one side outside the frame. A plurality of the secondary motors are provided on both sides outside the frame. The output end of the main motor is provided with a first planetary reducer. The output end of the first planetary reducer is drivingly connected to one end of the main transmission shaft. The other end of the main transmission shaft passes through and extends to the other side outside the frame. A plurality of driving pulleys are installed on both sides outside the frame on the main transmission shaft. The output ends of the plurality of secondary motors are all provided with planetary reducer assemblies. An input pulley and an output pulley are provided on the planetary reducer assemblies. The driving pulley is drivingly connected to the corresponding input pulley through a first transmission belt. A plurality of the secondary transmission shaft sleeves are provided on both sides of the frame. The plurality of secondary transmission shaft sleeves are sleeved in sequence and are coaxially rotatably connected. The outermost secondary transmission shaft sleeve is rotatably installed on the frame through a pedestal bearing. A driven pulley located outside the frame is installed on each of the plurality of secondary transmission shaft sleeves. The output pulley is drivingly connected to the corresponding driven pulley through a second transmission belt. A transmission swing arm located inside the frame is installed on each of the plurality of secondary transmission shaft sleeves. The plurality of transmission swing arms are evenly spaced along the circumferential direction of the secondary transmission shaft sleeve. The transverse changing assembly is installed at one end of each of the plurality of transmission swing arms.

2. An improved variable transverse speed device according to claim 1, characterized in that: It further includes an auxiliary swing arm. A plurality of the auxiliary swing arms are provided on both sides inside the frame. The plurality of auxiliary swing arms are evenly spaced along the circumferential direction of the main transmission shaft and are rotatably installed on the main transmission shaft. One end of the auxiliary swing arm is connected to the corresponding transverse changing assembly.

3. An improved variable transverse speed device according to claim 2, characterized in that: Two of the secondary motors are provided on both sides outside the frame. Two of the secondary transmission shaft sleeves are provided on both sides of the frame. Two of the transmission swing arms and two of the auxiliary swing arms are provided on both sides inside the frame. Two driving pulleys are installed on both sides outside the frame on the main transmission shaft.

4. An improved variable transverse speed device according to claim 1, characterized in that: The main transmission shaft is rotatably connected to the innermost secondary transmission shaft sleeve.

5. An improved variable transverse speed device according to claim 1, characterized in that: The driving pulley, the input pulley, the output pulley and the driven pulley are all synchronous toothed pulleys. The first transmission belt and the second transmission belt are both synchronous toothed belts.

6. An improved variable cross-section and variable speed device according to claim 1, characterized in that: The planetary reducer assembly includes a second planetary reducer, a machine base, a front bearing and a rear bearing. The front and rear ends of the second planetary reducer are respectively rotatably installed in the machine base through the front bearing and the rear bearing. The input pulley is installed on the outer shell of the second planetary reducer. A notch corresponding to the input pulley is provided on the machine base. One end of the second planetary reducer is the motor input end. An output shaft is provided at the other end of the second planetary reducer. The output pulley is installed on the output shaft.

7. An improved variable transverse speed device according to claim 6, characterized in that: The first planetary reducer is fixedly installed on the frame through a first mounting seat. The machine base is fixedly installed on the frame through a second mounting seat.

8. An improved variable cross-section and variable speed device according to claim 1, characterized in that: The main motor and the secondary motors are all servo motors.

9. An improved variable transverse speed device according to claim 1, characterized in that: The main motor performs a constant speed motion. The secondary motors perform a forward and reverse variable speed motion.

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