High-torque co-rotating twin-screw speed reducer with radial power dividing structure

Abstract

The invention relates to the technical field of speed reducers, in particular to a high-torque co-rotating double-screw speed reducer with a radial power dividing structure, which comprises a box body, an input gear shaft is arranged in the box body, the surface of the input gear shaft is in meshed connection with a bull gear, and an intermediate gear shaft is fixed in the bull gear; and an output shaft A is fixed at one end of the intermediate gear shaft. Through the arranged lubricating assembly, proper lubrication can be provided for key parts between the bearing frame and all the transmission parts, a good oil film is formed, friction between the parts is effectively reduced, relative movement between all the transmission parts can be smoother, vibration caused by sudden change of friction force is avoided, and the service life of the bearing frame is prolonged. Interference of vibration on normal operation of equipment can be effectively eliminated, so that the equipment is more stable in the operation process, the equipment damage risk caused by vibration is reduced, the overall performance of the equipment is improved, and long-time stable and reliable operation of the equipment is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of reducers, in particular to a high-torque co-directional twin-screw reducer with a radial power split structure. Background Art

[0002] The high torque co-rotating twin-screw reducer in the prior art generally adopts an axial power split structure, that is, a pair of herringbone teeth are used to split the power in the axial direction. The axial dimension of the reducer with this structure will be very long, which will cause the housing to be made into a two-stage or even three-stage structure, and the housing processing is relatively difficult. At the same time, due to the lengthened axial dimension, the output shaft will be made very long, and the output shaft is difficult to process. At the same time, its torque will also be reduced, and it is easy to break when transmitting torque; In addition, the current twin-screw power split structure often suffers from insufficient lubrication during operation, resulting in increased and uneven friction between components, which directly causes the twin-screw power split structure to vibrate. This not only interferes with the normal use of the equipment, making it impossible for the entire twin-screw reducer to output power stably, affecting production efficiency and product quality, but also long-term vibration has serious damage to the life of the equipment, accelerates the wear of components, and causes more serious failures. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-torque co-directional twin-screw reducer with a radial power split structure, which provides just the right lubrication for key parts between the bearing frame and various transmission components, effectively reduces the friction between components, and avoids vibration caused by sudden changes in friction force.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a high-torque co-directional twin-screw reducer with a radial power splitting structure, comprising a housing, an input gear shaft is arranged inside the housing, the surface of the input gear shaft is meshedly connected with a large gear, an intermediate gear shaft is fixed inside the large gear, an output shaft A is fixed at one end of the intermediate gear shaft, a power splitting gear A and a power splitting gear B are respectively meshedly connected on both sides of the surface of the intermediate gear shaft, a spline sleeve is fixed inside the power splitting gear A, a power splitting gear C is fixed at one end of the spline sleeve, a transmission shaft is fixed inside the power splitting gear B, a power splitting gear D is fixed at one end of the transmission shaft, an output gear shaft B is meshedly connected between the power splitting gear C and the power splitting gear D, and also comprises a lubrication component installed on the surface of the housing; The lubrication assembly includes an oil storage barrel fixed on the surface of the box body, an oil outlet pipe fixed on the surface of the oil storage barrel, and an oil distribution pipe fixed at one end of the oil outlet pipe. The input gear shaft, spline sleeve, output shaft A, output gear shaft B and transmission shaft are respectively rotatably connected to the inside of the box body through the bearing frame, and the input gear shaft, output shaft A and output gear shaft B pass through the box body respectively. The output end of the oil distribution pipe is provided with a plurality of groups of droppers matched with the bearing frame, and the position of the droppers is opposite to the oil inlet hole on the surface of the bearing frame.

[0005] Furthermore, the oil outlet pipe of the present invention is a two-section type, and the surfaces of the joints of the oil outlet pipes at both ends are sleeved with blocking sleeves, and the inside of the blocking sleeves is slidably connected with blocking plates.

[0006] Furthermore, a pushing pulley is fixed on one side of the sealing plate of the present invention, a spring is fixed between the pushing pulley and the sealing sleeve, and a pushing cam is abutted on the surface of the pushing pulley, a rotating shaft is fixed inside the pushing cam, and the rotating shaft is rotatably connected between the box body and the oil storage barrel.

[0007] Furthermore, a bevel gear set is fixed on the surface of the rotating shaft of the present invention, a transmission rod is coaxially fixed inside the bevel gear of the bevel gear set, and the transmission rod is rotatably connected to the surface of the box through a bearing bracket.

[0008] Furthermore, a transmission assembly is installed on the surface of the box body of the present invention, and the transmission assembly includes a vibration sensor fixed on the surface of the box body, an electric telescopic rod hinged on one side of the box body, and a master-slave gear splined to the through-end surface of the input gear shaft, and a driven gear matched with the master-slave gear is provided on the side of the input gear shaft surface close to the electric telescopic rod.

[0009] Furthermore, the output end of the electric telescopic rod of the present invention is hinged with a lever, the middle part of the lever is hinged with a support frame, and the support frame is fixed to the surface of the box body, and the end of the lever away from the electric telescopic rod is hinged with a lever sleeve, and the lever sleeve is mounted on the surface of the input gear shaft.

[0010] Furthermore, a driving shaft is fixed inside the driven gear of the present invention, and the driving shaft is rotatably connected to the surface of the box body, and a transmission chain is connected between the driving shaft and the transmission rod via a sprocket.

[0011] The beneficial effects of the present invention are that the defects existing in the background technology are solved. 1. The lubrication component can be intermittently blocked and opened to allow the lubricating oil in the oil storage barrel to intermittently drip into the oil inlet hole of the bearing frame through the oil distribution pipe, thereby providing just the right lubrication for the key parts between the bearing frame and each transmission component, forming a good oil film, and effectively reducing the friction between the components. The relative movement between the transmission components can be smoother, greatly reducing the wear and heat caused by friction, and when the transmission components are fully lubricated, the friction between the components becomes more uniform and stable, avoiding vibration caused by sudden changes in friction, and effectively eliminating the interference of vibration on the normal operation of the equipment, making the equipment more stable during operation, reducing the risk of equipment damage caused by vibration, improving the overall performance of the equipment, and ensuring long-term stable and reliable operation of the equipment.

[0012] 2. Through the transmission component, the vibration amplitude of the box and its internal shunt structure can be monitored in real time, and when the vibration amplitude reaches the threshold, it can respond quickly and initiate corresponding actions, which can effectively avoid long-term damage to the equipment caused by vibration. No human intervention is required, which improves the intelligence level and operation efficiency of the equipment, and greatly improves the timeliness and accuracy of responding to vibration problems. At the same time, the transmitted power can drive the lubrication component without the need for an additional power source to drive the lubrication component, reducing the cost and equipment complexity, making the entire system more concise and efficient, and improving the economy and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the box body in the present invention; Figure 3 It is a structural schematic diagram of the lubrication component in the present invention; Figure 4 A partial cross-sectional view of the lubrication assembly of the present invention; Figure 5 The structure of the transmission assembly in the present invention is schematically shown in FIG. Figure 1 ; Figure 6 The structure of the transmission assembly in the present invention is schematically shown in FIG. Figure 2 .

[0014] In the figure: 1. input gear shaft; 2. large gear; 3. power split gear A; 4. intermediate gear shaft; 5. spline sleeve; 6. power split gear C; 7. output shaft A; 8. power split gear B; 9. power split gear D; 10. output gear shaft B; 11. housing; 12. transmission shaft; 13. lubrication assembly; 131. oil storage barrel; 132. oil outlet pipe; 133. oil distribution pipe; 134. plugging sleeve; 1 35. Sealing plate; 136. Push pulley; 137. Spring; 138. Push cam; 139. Rotating shaft; 1310. Bevel gear set; 1311. Transmission rod; 14. Transmission assembly; 141. Vibration sensor; 142. Electric telescopic rod; 143. Support frame; 144. Push rod; 145. Push sleeve; 146. Master-slave gear; 147. Driven gear; 148. Drive shaft; 149. Transmission chain. DETAILED DESCRIPTION

[0015] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0016] like Figure 1-Figure 6 A high-torque co-directional twin-screw reducer with a radial power splitting structure shown in the figure comprises a housing 11, an input gear shaft 1 is arranged inside the housing 11, a large gear 2 is meshedly connected on the surface of the input gear shaft 1, an intermediate gear shaft 4 is fixed inside the large gear 2, an output shaft A7 is fixed at one end of the intermediate gear shaft 4, a power splitting gear A3 and a power splitting gear B8 are respectively meshedly connected on both sides of the surface of the intermediate gear shaft 4, a spline sleeve 5 is fixed inside the power splitting gear A3, a power splitting gear C6 is fixed at one end of the spline sleeve 5, a transmission shaft 12 is fixed inside the power splitting gear B8, a power splitting gear D9 is fixed at one end of the transmission shaft 12, and an output gear shaft B10 is meshedly connected between the power splitting gear C6 and the power splitting gear D9.

[0017] In addition, it also includes a lubrication component 13 installed on the surface of the housing 11, the lubrication component 13 includes an oil storage barrel 131 fixed on the surface of the housing 11, an oil outlet pipe 132 fixed on the surface of the oil storage barrel 131, and an oil distribution pipe 133 fixed at one end of the oil outlet pipe 132, the input gear shaft 1, the spline sleeve 5, the output shaft A7, the output gear shaft B10 and the transmission shaft 12 are respectively rotatably connected to the inside of the housing 11 through the bearing frame, and the input gear shaft 1, the output shaft A7 and the output gear shaft B10 respectively pass through the housing 11, and the output end of the oil distribution pipe 133 is provided with a plurality of groups of droppers compatible with the bearing frame, and the position of the droppers is opposite to the oil inlet hole on the surface of the bearing frame.

[0018] In this embodiment: the oil outlet pipe 132 is sealed and opened, so that the lubricating oil inside the oil storage barrel 131 can be intermittently dripped into the oil inlet hole of the bearing frame through the oil distribution pipe 133 accurately, thereby providing just the right lubrication for the key parts between the bearing frame and various transmission components, forming a good oil film, and effectively reducing the friction between the components.

[0019] The radial diversion principle in this embodiment is: 100% of the motor power is transmitted to the large gear 2 through the input gear shaft 1, the large gear 2 directly transmits 50% of the torque to the output shaft A7, and the remaining 50% of the torque of the large gear 2 is transmitted to the intermediate gear shaft 4, the intermediate gear shaft 4 is simultaneously engaged with the power diversion gear A3 and the power diversion gear B8, and the power is divided into two again, and 25% of the power is distributed to the power diversion gear A3 and the power diversion gear B8 respectively, the power diversion gear A3 and the power diversion gear B8 transmit 25% of the power to the power diversion gear C6 and the power diversion gear D9 respectively through the shaft system, the power diversion gear C6 and the power diversion gear D9 are simultaneously engaged with the output gear shaft B10, thereby simultaneously transmitting 25% of the power of each to the output gear shaft B10, forming 50% power, thereby realizing that the output shaft A7 and the output gear shaft B10 simultaneously achieve 50% power output, from Figure 2 It can be seen that the power split gear A3 and the power split gear C6 are on the same straight line, and the power split gear B8 and the power split gear D9 are on the same straight line with the output gear shaft B10. Therefore, when torque is transmitted, the radial force generated by the power split gear A3 and the power split gear C6 and the radial force generated by the power split gear B8 and the power split gear D9 can offset each other, so that the bearing on the output gear shaft B10 is almost not subject to radial force, and its service life is greatly improved.

[0020] In an optional embodiment, the oil outlet pipe 132 is a two-section type, and a sealing sleeve 134 is sleeved on the surface of the joint of the oil outlet pipes 132 at both ends, and a sealing plate 135 is slidably connected inside the sealing sleeve 134. A pushing pulley 136 is fixed to one side of the sealing plate 135, and a spring 137 is fixed between the pushing pulley 136 and the sealing sleeve 134. A pushing cam 138 is abutted on the surface of the pushing pulley 136, and a rotating shaft 139 is fixed inside the pushing cam 138, and the rotating shaft 139 is rotatably connected between the box body 11 and the oil storage barrel 131, and a bevel gear group 1310 is fixed on the surface of the rotating shaft 139, and a transmission rod 1311 is coaxially fixed inside the bevel gear of the bevel gear group 1310, and the transmission rod 1311 is rotatably connected to the surface of the box body 11 through a bearing bracket.

[0021] In this embodiment: through the rotation of the driving shaft 148, with the cooperation of the transmission chain 149, the transmission rod 1311 can be driven to rotate on the surface of the box body 11, thereby driving the bevel gear group 1310 to operate, and the rotating shaft 139 can be driven to rotate on the surface of the box body 11. The rotation of the rotating shaft 139 can drive the pushing cam 138 to rotate, and under the elastic force of the spring 137, the reciprocating pushing pulley 136 can be moved, and the sealing plate 135 can be driven to slide back and forth inside the sealing sleeve 134, thereby realizing intermittent blocking and opening of the oil outlet pipe 132.

[0022] It should be noted that by intermittently sealing and opening the oil outlet pipe 132 through the sealing sleeve 134, the outflow amount and outflow time interval of the lubricating oil can be accurately controlled, thereby avoiding the waste caused by the continuous and large-scale outflow of the lubricating oil, making reasonable and efficient use of the dripping lubricating oil, greatly reducing the consumption of the lubricating oil, maintaining the good lubrication state of the transmission parts, and realizing the optimization of resource utilization and the maximization of the lubrication effect.

[0023] Going further: In combination with the above content, it also includes a transmission assembly 14 installed on the surface of the box body 11, and the transmission assembly 14 includes a vibration sensor 141 fixed on the surface of the box body 11, an electric telescopic rod 142 hinged on one side of the box body 11, and a master-slave gear 146 splined to the through-end surface of the input gear shaft 1, and a driven gear 147 compatible with the master-slave gear 146 is arranged on the surface of the input gear shaft 1 and on the same side as the electric telescopic rod 142.

[0024] In this embodiment: as the twin-screw radial power diversion structure operates, the wear between each transmission component and the bearing frame will gradually increase, thereby causing the friction between each transmission component to increase and become uneven, causing the diversion structure and the housing 11 to vibrate. At this time, the vibration sensor 141 monitors the vibration generated by the housing 11 and the diversion structure inside it. When the vibration amplitude reaches a set threshold, the vibration sensor 141 sends an electrical signal to a control system (not shown in the figure) and converts it into a control signal, thereby immediately starting the electric telescopic rod 142, which drives the master-slave gear 146 to slide along the spline surface on the surface of the input gear shaft 1, and makes the master-slave gear 146 approach the surface of the driven gear 147 until the master-slave gear 146 and the driven gear 147 are meshed together. Subsequently, through the rotation of the input gear shaft 1, under the action of the master-slave gear 146, the driven gear 147 and the drive shaft 148 can be driven to rotate on one side of the housing 11.

[0025] In an optional embodiment: the output end of the electric telescopic rod 142 is hinged with a lever 144, the middle part of the lever 144 is hinged with a support frame 143, and the support frame 143 is fixed to the surface of the box body 11, and the end of the lever 144 away from the electric telescopic rod 142 is hinged with a lever sleeve 145, and the lever sleeve 145 is sleeved on the surface of the input gear shaft 1, and the lever sleeve 145 can be rotatably connected to the master and slave gears 146 through bearings or other connecting parts, and a driving shaft 148 is fixed inside the driven gear 147, and the driving shaft 148 is rotatably connected to the surface of the box body 11, and a transmission chain 149 is connected between the driving shaft 148 and the transmission rod 1311 through a sprocket.

[0026] In this embodiment: the electric telescopic rod 142 drives one end of the lever 144 to move, so that it turns inside the support frame 143, and then drives the hinged lever sleeve 145 at the other end to slide on the surface of the input gear shaft 1, thereby driving the master-slave gear 146 to slide along the spline surface on the surface of the input gear shaft 1, and making the master-slave gear 146 approach the surface of the driven gear 147 until the master-slave gear 146 and the driven gear 147 are meshed together. Due to the perspective of the view, the linkage relationship between the lever sleeve 145 and the master-slave gear 146 is not obvious in the figure; in this embodiment, the lever sleeve 145 drives the master-slave gear 146 to slide on the surface of the input gear shaft 1.

[0027] The working process of the present invention is: first, 100% of the motor power is transmitted to the large gear 2 through the input gear shaft 1, and the large gear 2 directly transmits 50% of the torque to the output shaft A7. The remaining 50% of the torque of the large gear 2 is transmitted to the intermediate gear shaft 4. The intermediate gear shaft 4 is simultaneously engaged with the power split gear A3 and the power split gear B8, and the power is divided into two again, and 25% of the power is distributed to the power split gear A3 and the power split gear B8 respectively. The power split gear A3 and the power split gear B8 transmit 25% of the power to the power split gear C6 and the power split gear D9 respectively through the shaft system. The power split gear C6 and the power split gear D9 are simultaneously engaged with the output gear shaft B10, thereby simultaneously transmitting 25% of the power of each to the output gear shaft B10 to form 50% power, thereby achieving 50% power output of the output shaft A7 and the output gear shaft B10 at the same time.

[0028] Furthermore, as the twin-screw radial power diversion structure operates, the wear between each transmission component and the bearing frame will gradually increase, thereby causing the friction between each transmission component to increase and become uneven, causing the diversion structure and the housing 11 to vibrate. At this time, the vibration sensor 141 monitors the vibration generated by the housing 11 and the diversion structure inside it. When the vibration amplitude reaches a set threshold, the vibration sensor 141 sends an electrical signal to a control system (not shown in the figure) and converts it into a control signal, thereby immediately starting the electric telescopic rod 142, which drives one end of the lever 144 to move, causing it to flip inside the support frame 143, and then drives the other end of the hinged sleeve 145 to slide on the surface of the input gear shaft 1, thereby driving the master-slave gear 146 to slide along the surface of the input gear shaft 1 The spline surface slides and makes the master-slave gear 146 approach the surface of the driven gear 147 until the master-slave gear 146 and the driven gear 147 are meshed together. Subsequently, through the rotation of the input gear shaft 1, under the action of the master-slave gear 146, the driven gear 147 and the drive shaft 148 can be driven to rotate on one side of the box body 11. By responding in time when the vibration amplitude reaches the threshold and initiating the corresponding action, the vibration can effectively avoid long-term damage to the equipment without human intervention, thereby improving the intelligence level and operation efficiency of the equipment, and greatly improving the timeliness and accuracy of dealing with vibration problems. At the same time, the transmitted power can drive the lubrication component 13, and there is no need to set up an additional power source to drive the lubrication component 13, thereby reducing the cost and equipment complexity, making the entire system more concise and efficient, and improving the economy and practicality of the equipment.

[0029] Furthermore, by the rotation of the drive shaft 148, with the cooperation of the transmission chain 149, the transmission rod 1311 can be driven to rotate on the surface of the box body 11, thereby driving the bevel gear set 1310 to operate, that is, driving the rotating shaft 139 to rotate on the surface of the box body 11, and then the rotation of the rotating shaft 139 can drive the pushing cam 138 to rotate, and under the elastic force of the spring 137, the reciprocating pushing pulley 136 is moved, and the blocking plate 135 can be driven to slide back and forth inside the blocking sleeve 134, thereby intermittently blocking and opening the oil outlet pipe 132, so that the lubricating oil inside the oil storage barrel 131 is intermittently discharged through the oil distribution pipe 133 precisely drips into the oil inlet hole of the bearing frame, providing just the right amount of lubrication for the key parts between the bearing frame and each transmission component, forming a good oil film, effectively reducing the friction between components, making the relative movement between the transmission components smoother, greatly reducing the wear and heat caused by friction, and when the transmission components are fully lubricated, the friction between the components becomes more uniform and stable, avoiding the vibration caused by the sudden change of friction, and effectively eliminating the interference of vibration on the normal operation of the equipment, making the equipment more stable during operation, reducing the risk of equipment damage caused by vibration, improving the overall performance of the equipment, and ensuring the long-term stable and reliable operation of the equipment.

[0030] The above description only describes the specific implementation mode of the present invention. Various examples do not limit the essential content of the present invention. After reading the description, ordinary technicians in the relevant technical field can modify or deform the specific implementation modes described above without departing from the essence and scope of the invention.

Claims

1. A high torque co-rotating twin-screw reducer with a radial power splitting structure, comprising a housing (11), an input gear shaft (1) being arranged inside the housing (11), a large gear (2) being meshedly connected on the surface of the input gear shaft (1), an intermediate gear shaft (4) being fixed inside the large gear (2), an output shaft A (7) being fixed at one end of the intermediate gear shaft (4), a power splitting gear A (3) and a power splitting gear B (8) being meshedly connected on both sides of the surface of the intermediate gear shaft (4), a spline sleeve (5) being fixed inside the power splitting gear A (3), a power splitting gear C (6) being fixed at one end of the spline sleeve (5), a transmission shaft (12) being fixed inside the power splitting gear B (8), a power splitting gear D (9) being fixed at one end of the transmission shaft (12), an output gear shaft B (10) being meshedly connected between the power splitting gear C (6) and the power splitting gear D (9), characterized in that: It also includes a lubrication component (13) installed on the surface of the box (11); The lubrication assembly (13) comprises an oil storage barrel (131) fixed on the surface of the housing (11), an oil outlet pipe (132) fixed on the surface of the oil storage barrel (131), and an oil distribution pipe (133) fixed at one end of the oil outlet pipe (132); the input gear shaft (1), the spline sleeve (5), the output shaft A (7), the output gear shaft B (10), and the transmission shaft (12) are rotatably connected to the interior of the housing (11) via a bearing frame, and the input gear shaft (1), the output shaft A (7), and the output gear shaft B (10) respectively penetrate the housing (11); and the output end of the oil distribution pipe (133) is provided with a plurality of groups of droppers that are compatible with the bearing frame, and the positions of the droppers are directly opposite to the oil inlet holes on the surface of the bearing frame.

2. A high torque co-rotating twin-screw reducer with radial power split structure according to claim 1, characterized in that: The oil outlet pipe (132) is of two-section type, and the surfaces of the butt joints of the oil outlet pipes (132) at both ends are sleeved with blocking sleeves (134), and the interior of the blocking sleeve (134) is slidably connected with a blocking plate (135).

3. The high torque co-rotating twin-screw reducer with radial power split structure according to claim 2, characterized in that: A pushing pulley (136) is fixed to one side of the blocking plate (135), a spring (137) is fixed between the pushing pulley (136) and the blocking sleeve (134), a pushing cam (138) is abutted against the surface of the pushing pulley (136), a rotating shaft (139) is fixed inside the pushing cam (138), and the rotating shaft (139) is rotatably connected between the box body (11) and the oil storage barrel (131).

4. The high torque co-rotating twin-screw reducer with radial power split structure according to claim 3, characterized in that: A bevel gear set (1310) is fixed to the surface of the rotating shaft (139), a transmission rod (1311) is coaxially fixed inside the bevel gear of the bevel gear set (1310), and the transmission rod (1311) is rotatably connected to the surface of the box body (11) via a bearing bracket.

5. The high torque co-rotating twin-screw reducer with radial power split structure according to claim 1, characterized in that: A transmission assembly (14) is mounted on the surface of the box (11), the transmission assembly (14) comprising a vibration sensor (141) fixed on the surface of the box (11), an electric telescopic rod (142) hinged on one side of the box (11), and a master-slave gear (146) spline-connected to the through-end surface of the input gear shaft (1), and a driven gear (147) matched with the master-slave gear (146) is also arranged on the surface of the input gear shaft (1).

6. The high torque co-rotating twin-screw reducer with radial power split structure according to claim 5, characterized in that: The output end of the electric telescopic rod (142) is hinged with a lever (144), the middle part of the lever (144) is hinged with a support frame (143), and the support frame (143) is fixed on the surface of the box body (11), and one end of the lever (144) away from the electric telescopic rod (142) is hinged with a lever sleeve (145), and the lever sleeve (145) is sleeved on the surface of the input gear shaft (1).

7. The high torque co-rotating twin-screw reducer with radial power split structure according to claim 5, characterized in that: A drive shaft (148) is fixed inside the driven gear (147), and the drive shaft (148) is rotatably connected to the surface of the box body (11), and a transmission chain (149) is connected between the drive shaft (148) and the transmission rod (1311) via a sprocket.

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