Mechanical hand wheel switching lubrication structure
By designing an automatic lubrication and lubricating oil circulation system, the problem of parts wear in the robotic handwheel switching device was solved, achieving automatic lubrication and heat dissipation, and improving the reliability and ease of use of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- THE 704TH RES INST OF CHINA STATE SHIPBUILDING CORP
- Filing Date
- 2023-03-29
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, the mechanical handwheel switching device lacks lubrication during long-term use, resulting in severe wear of parts such as the turbine and worm gear, requiring regular manual addition of lubricating oil, which is inconvenient to use.
A mechanical handwheel switching lubrication structure was designed, including a switching box, a partition, a push rod, a drive assembly, a lubrication assembly, an oil replenishment assembly, and a heat dissipation assembly. Through an automatic lubrication and lubricating oil circulation system, the parts are always lubricated, reducing wear, and the heat dissipation assembly maintains the normal operation of the drive assembly.
It achieves automatic lubrication of parts during the switching between electric and manual operation, reducing wear, eliminating the need for regular manual lubrication, ensuring the reliability and ease of use of the device, and effectively dissipating heat to ensure the normal operation of the drive components.
Smart Images
Figure CN116464891B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an electric actuator, specifically to a mechanical handwheel switching lubrication structure. Background Technology
[0002] As an important component of electric actuators, the manual / electric switching device varies among manufacturers, with different methods for switching between manual and electric operation. These methods mainly include "handle switching," "continuous handwheel push-in," and "button switching." The "handle switching method" often results in a poorly designed handle appearance; the "handwheel push-in method" requires a continuous axial force to operate the handwheel manually, leading to a poor user experience; and the "button switching method" has a complex structure and low reliability.
[0003] Chinese invention patent CN104373588A discloses a handwheel switching device, including a housing, a worm gear, a worm, and a handwheel seat. One end of the housing is connected to the handwheel seat. The housing contains a worm gear and a worm, which mesh with each other. Both ends of the worm are mounted on the housing via a connecting mechanism, which consists of an oil seal, a retaining ring, and a bearing arranged sequentially from the outside to the inside of the housing. The handwheel seat and the housing form a cavity. Two sets of needle roller bearings are symmetrically arranged in the inner cavity of the handwheel seat, with a spacer between the two needle roller bearings on one side. The handwheel shaft is located in the inner cavity of the handwheel seat, with one end connected to the handwheel. The worm and the handwheel shaft are on the same horizontal line. The beneficial effects of this invention are: by adjusting the disengagement and engagement of the handwheel shaft and the worm, it is convenient to switch between electric and manual modes; and it provides a safe working environment for the operator.
[0004] However, the above-mentioned patent still has the following shortcomings in actual use: the patent adjusts the disengagement and engagement of the handwheel shaft and the worm gear to switch between electric and manual modes. Under long-term operation, the turbine and worm gear and other parts in the gearbox lack lubrication and are prone to wear. It is necessary to manually add lubricating oil to the gearbox regularly for maintenance, which is inconvenient to use. Summary of the Invention
[0005] The purpose of this invention is to provide a mechanical handwheel switching lubrication structure to solve the problem mentioned in the background art that the turbine and worm gear parts in the housing are prone to wear due to lack of lubrication during long-term operation, requiring regular manual addition of lubricating oil for maintenance, which is inconvenient to use.
[0006] To achieve the above objectives, the technical solution of the present invention is: a mechanical handwheel switching lubrication structure, comprising a switching box, a partition, a push rod, a drive assembly, a lubrication assembly, an oil replenishment assembly, and a heat dissipation assembly. The partition is vertically arranged inside the switching box, dividing the internal space of the switching box into a switching chamber and a drive chamber. The handwheel drive mechanism is connected to the switching chamber via two bearings. The drive assembly is installed in the drive chamber. The lubrication assembly is installed on the top of the switching box, with its bottom end extending into the interior of the switching chamber. The oil replenishment assembly is installed on the top of the switching box, with both ends connected to the switching chamber and the lubrication assembly, respectively. The heat dissipation assembly is installed on the top of the switching box and is connected to the drive chamber. The drive assembly is connected to the handwheel drive mechanism via a push rod and a spline structure. The handwheel drive mechanism is connected to the lubrication assembly via a second limiting ring.
[0007] Furthermore, the handwheel shaft of the handwheel drive mechanism is horizontally sleeved on the inner ring of the second bearing, and the front end of the handwheel shaft extends to the outside of the switching box. A first limiting ring is provided on the outer wall of the handwheel shaft located in the switching cavity, and a second limiting ring is provided on the outer wall of the handwheel shaft located outside the switching box. A handwheel handle is provided at the front end of the handwheel shaft. The first bearing is installed inside the partition plate. Two fixing blocks are symmetrically arranged on the inner wall of the switching cavity, and second bearings are installed on the two fixing blocks. The inner spline sleeve of the spline structure is installed at the tail end of the handwheel shaft. The outer spline shaft is sleeved on the inner ring of the first bearing, and the end of the outer spline shaft near the inner spline sleeve is located inside the switching cavity. The key shaft and the inner spline sleeve are matched and meshed. The outer wall of the push rod is provided with four protruding ridges. The push rod is horizontally set inside the inner spline sleeve, and the end of the push rod away from the inner spline sleeve extends through the outer spline shaft into the drive cavity. The end of the push rod away from the inner spline sleeve is provided with a transmission groove. The outer spline shaft is provided with a cross-shaped groove for the push rod to pass through. Two mounting blocks are symmetrically arranged on the outer wall of the inner spline sleeve. Each mounting block is provided with a push post horizontally. The end of the push post away from the mounting block extends through the first bearing to the side of the drive assembly. A push plate is installed on the end of the push post away from the mounting block. One end of the drive assembly is inserted and connected to the transmission groove.
[0008] Furthermore, the drive assembly includes a slide rail, a sliding block, a drive motor, a transmission rod, and an elastic connector. The slide rail is horizontally disposed at the bottom of the drive cavity, the sliding block is slidably mounted on the slide rail, the drive motor is horizontally disposed at the top of the sliding block, the transmission rod is mounted on the output shaft of the drive motor, and the end of the transmission rod away from the drive motor is inserted into the transmission groove. The elastic connector is mounted on the inner sidewall of the drive cavity, and one end of the elastic connector is connected to the sidewall of the drive motor.
[0009] Furthermore, the elastic connector includes a first connecting seat, a second connecting seat, and a connecting spring. The first connecting seat is installed on the inner side wall of the drive cavity, the second connecting seat is installed on the side wall of the drive motor, and the two ends of the connecting spring are respectively connected to the first connecting seat and the second connecting seat.
[0010] Furthermore, the lubrication assembly includes a lubrication cylinder, a piston, a push rod, a push block, a lubrication pipe, a nozzle, a one-way valve, a connecting frame, and a connecting block. The lubrication cylinder is horizontally disposed on the top of the switching box. The piston is slidably mounted inside the lubrication cylinder. The push rod is slidably mounted on the outer wall of the lubrication cylinder, and one end of the push rod is connected to the piston. The push block is mounted on the other end of the push rod. The top end of the lubrication pipe is connected to the lubrication cylinder, and the bottom end of the lubrication pipe extends above the external spline shaft inside the switching chamber. The nozzle is mounted on the bottom end of the lubrication pipe. The one-way valve is mounted on the lubrication pipe. The connecting frame is mounted on the outer wall of the second limiting ring, and the top end of the connecting frame extends close to the push block. The connecting block is mounted on the top end of the connecting frame.
[0011] Furthermore, the oil replenishment assembly includes a support frame, an oil pump, a first return oil pipe, and a second return oil pipe. The support frame is installed on the top outer wall of the switching box, and the oil pump is horizontally arranged on the top of the support frame. The two ends of the first return oil pipe are respectively connected to the input end of the oil pump and the inside of the switching chamber, and the two ends of the second return oil pipe are respectively connected to the output end of the oil pump and the inside of the lubrication cylinder.
[0012] Furthermore, the heat dissipation assembly includes a heat dissipation slot, a heat dissipation cover, a dust baffle, a moving rack, a support frame, a rotating motor, a rotating gear, and two sliding grooves. The heat dissipation slot is located on the top of the switching box and is connected to the drive cavity. The heat dissipation cover overlaps the heat dissipation slot and has several heat dissipation holes. The two sliding grooves are symmetrically arranged on the top of the heat dissipation cover. The dust baffle is slidably mounted on the two sliding grooves. The moving rack is horizontally arranged at the bottom of the dust baffle. The support frame is installed on the top outer wall of the switching box. The rotating motor is horizontally arranged on the top of the support frame. The rotating gear is mounted on the output shaft of the rotating motor and meshes with the moving rack.
[0013] Furthermore, the bottom of the switching chamber is provided with an oil guide ramp, and the bottom of the oil guide ramp is positioned facing the first return oil pipe.
[0014] Furthermore, the top of the switching box is provided with an oil filling pipe that communicates with the switching chamber, and the oil filling pipe is provided with a rubber plug.
[0015] Furthermore, the outer wall of the switching box is provided with a transparent observation window corresponding to the switching cavity.
[0016] This invention provides an improved robotic handwheel switching structure, which, compared with the prior art, has the following improvements and beneficial effects:
[0017] Firstly, in the initial state of this invention, the first limiting ring is in contact with the inner wall of the switching cavity, which is in electric mode. The drive assembly operates by using the transmission groove to drive the push rod to rotate. The push rod uses the cross-shaped groove to drive the outer spline shaft to rotate, and the push rod also drives the inner spline sleeve to rotate simultaneously, thus achieving electric rotation. When it is necessary to switch to manual mode, simply push the handwheel handle closer to the switching box. The handwheel handle drives the handwheel shaft closer to the drive cavity, and the second limiting ring moves to contact with the outer wall of the switching box. At this time, the handwheel shaft drives the inner spline sleeve to move to mesh with the outer spline shaft. Simultaneously, the inner spline sleeve uses the push post and push plate to drive the drive assembly to move. One end of the drive assembly moves to separate from the transmission groove. Then, manually rotate the handwheel handle to drive the handwheel shaft, inner spline sleeve, outer spline shaft, and push rod to rotate, thus achieving manual rotation. At the same time, the second limiting ring moves to contact with the outer wall of the switching box, the first limiting ring... The two limiting rings drive the lubrication assembly to spray lubricating oil onto the inner spline sleeve and outer spline shaft in the switching chamber, ensuring lubrication and reducing wear. When switching to electric mode, simply push the handwheel handle away from the switching box. The handwheel handle moves the first limiting ring until it is in contact with the inner wall of the switching box, and the push column and push plate move to separate from the drive assembly. At this time, the drive assembly resets under its own elastic force, and one end of the drive assembly automatically resets to engage with the transmission groove. Simultaneously, the oil replenishment assembly replenishes the excess lubricating oil in the switching chamber into the lubrication assembly, ensuring that there is always lubricating oil in the lubrication assembly. There is no need to manually add lubricating oil to the lubrication assembly periodically. Lubrication of parts is achieved every time the switch is from electric to manual, and lubrication of the lubrication assembly is replenished every time the switch is from manual to electric, which is very convenient.
[0018] Secondly, this invention uses an oil pump to extract excess lubricating oil from the switching chamber and then through the first and second return oil pipes into the lubrication cylinder, ensuring that there is always lubricating oil in the lubrication cylinder, eliminating the need for periodic manual addition of lubricating oil.
[0019] Thirdly, this invention uses a rotating motor to drive a rotating gear, which in turn uses a moving rack to move a dust baffle on two sliding grooves. When the dust baffle moves a certain distance, several heat dissipation holes on the heat dissipation cover are connected to the outside. The heat dissipated by the driving motor in the drive cavity flows out to the outside through several heat dissipation holes, ensuring that the heat in the drive cavity can be dissipated and ensuring the normal operation of the driving motor. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0022] Figure 3 This is a top view of the present invention;
[0023] Figure 4 yes Figure 3 Sectional view along line AA;
[0024] Figure 5 This is a partial cross-sectional view of the present invention;
[0025] Figure 6 This is a partial front view of the present invention;
[0026] Figure 7 This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;
[0027] Figure 8 This is a partial three-dimensional structural diagram of the present invention. Figure 2 ;
[0028] Figure 9 This is a three-dimensional structural diagram of the external spline shaft of the present invention;
[0029] Figure 10 This is a three-dimensional structural diagram of the heat dissipation component of the present invention;
[0030] Figure 11 This is a three-dimensional structural diagram of the switching box of the present invention;
[0031] Explanation of reference numerals in the attached figures:
[0032] Switching box 1, switching chamber 11, drive chamber 12, oil guide ramp 13, oil filling pipe 14, rubber plug 15, transparent observation window 16, partition 2, first bearing 21, second bearing 22, handwheel shaft 23, first limit ring 231, second limit ring 232, handwheel handle 233, inner spline sleeve 24, mounting block 25, push column 26, push plate 27, outer spline shaft 3, cross groove 31, push rod 4, protrusion 41, transmission groove 42, drive assembly 5, slide rail 51, sliding block 52, drive motor 53, transmission rod 54, elastic connector 5 5. First connecting seat 56, second connecting seat 57, connecting spring 58, lubrication assembly 6, lubrication cylinder 61, piston 62, push rod 63, push block 64, lubrication pipe 65, nozzle 66, one-way valve 67, connecting frame 68, connecting block 69, oil replenishment assembly 7, bearing frame 71, oil pump 72, first return oil pipe 73, second return oil pipe 74, heat dissipation assembly 8, heat dissipation groove 81, heat dissipation cover 82, dust baffle 83, moving rack 84, support frame 85, rotating motor 86, rotating gear 87, slide groove 88, heat dissipation hole 89, fixing block 9. Detailed Implementation
[0033] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0034] This invention provides a robotic handwheel switching structure, such as... Figures 1-11As shown, the assembly includes a switching box 1, a partition 2, a first bearing 21, a second bearing 22, a handwheel shaft 23, an inner spline sleeve 24, an outer spline shaft 3, a push rod 4, a drive assembly 5, a lubrication assembly 6, an oil replenishment assembly 7, a heat dissipation assembly 8, and two fixing blocks 9. The partition 2 is vertically positioned inside the switching box 1, dividing the internal space of the switching box 1 into a switching cavity 11 and a drive cavity 12. The first bearing 21 is installed inside the partition 2. Two fixing blocks 9 are symmetrically arranged on the inner wall of the switching cavity 11. The second bearing 22 is installed on the two fixing blocks 9. The handwheel shaft 23 is horizontally sleeved on the inner ring of the second bearing 22, and its front end extends to the outside of the switching box 1. A first limiting ring 231 is provided on the outer wall of the switching cavity 11 of the handwheel shaft 23. A second limiting ring 232 is provided on the outer wall of the switching box 1. A handwheel handle 233 is provided at the front end of the handwheel shaft 23. An inner spline sleeve 24 is installed at the tail end of the handwheel shaft 23. An outer spline shaft 3 is sleeved on the inner ring of the first bearing 21, and the end of the outer spline shaft 3 near the inner spline sleeve 24 is located in the switching cavity 11. The outer spline shaft 3 and the inner spline sleeve 24 are matched and meshed with each other. The outer wall of the push rod 4 is provided with four protruding ridges 41. The push rod 4 is horizontally set inside the inner spline sleeve 24 and is far away from the inner spline sleeve 24. One end of sleeve 24 extends through the outer spline shaft 3 into the drive cavity 12. A transmission groove 42 is provided at the end of the push rod 4 away from the inner spline sleeve 24. The outer spline shaft 3 has a cross-shaped groove 31 through which the push rod 4 passes. The drive assembly 5 is installed in the drive cavity 12, and one end of the drive assembly 5 is inserted into the transmission groove 42. The lubrication assembly 6 is installed on the top of the switching box 1, and one end of the lubrication assembly 6 extends into the second limiting ring 232. The bottom end of the lubrication assembly 6 extends into the interior of the switching cavity 11. An oil replenishment assembly... 7 is installed on the top of the switching box 1, and the two ends of the oil replenishing component 7 are connected to the switching cavity 11 and the lubrication component 6 respectively. The heat dissipation component 8 is installed on the top of the switching box 1, and the heat dissipation component 8 is connected to the drive cavity 12. Two mounting blocks 25 are symmetrically arranged on the outer wall of the inner spline sleeve 24. Each mounting block 25 is horizontally provided with a push post 26. The end of the push post 26 away from the mounting block 25 extends through the first bearing 21 to the side of the drive component 5. A push plate 27 is installed on the end of the push post 26 away from the mounting block 25.In the initial state, the first limiting ring 231 is in contact with the inner wall of the switching cavity 11, which is in electric mode. The drive assembly 5 operates by using the transmission groove 42 to drive the push rod 4 to rotate. The push rod 4 uses the cross-shaped groove 31 to drive the outer spline shaft 3 to rotate. The push rod 4 also drives the inner spline sleeve 24 to rotate simultaneously, thus realizing electric rotation. When it is necessary to switch to manual mode, simply push the handwheel handle 233 closer to the switching box 1. The handwheel handle 233 drives the handwheel shaft 23 closer to the drive cavity 12, and the second limiting ring 231 moves closer to the switching cavity 12. The positioning ring 232 moves to fit against the outer wall of the switching box 1. At this time, the handwheel shaft 23 drives the inner spline sleeve 24 to move to mesh with the outer spline shaft 3. Simultaneously, the inner spline sleeve 24 drives the drive assembly 5 to move using the push post 26 and push plate 27. One end of the drive assembly 5 moves to separate from the transmission groove 42. Then, the handwheel handle 233 is manually rotated to drive the handwheel shaft 23, the inner spline sleeve 24, the outer spline shaft 3, and the push rod 4 to rotate, thereby realizing manual rotation. The second limiting ring 232 moves to fit against the outer wall of the switching box 1. While the outer wall is in contact with the lubrication assembly, the second limiting ring 232 pushes the lubrication assembly 6 to spray lubricating oil onto the inner spline sleeve 24 and outer spline shaft 3 in the switching chamber 11, ensuring lubrication and reducing wear. When switching to electric mode, simply push the handwheel handle 233 away from the switching box 1. The handwheel handle 233 moves the first limiting ring 231 to contact the inner wall of the switching box 1, and the push column 26 and push plate 27 move to separate from the drive assembly 5. At this time, the drive assembly 5 resets under its own elastic force, and one end of the drive assembly 5 automatically resets to engage with the transmission groove 42. Simultaneously, the oil replenishment assembly 7 replenishes excess lubricating oil in the switching chamber 11 to the lubrication assembly 6, ensuring that there is always lubricating oil in the lubrication assembly 6. There is no need to manually add lubricating oil to the lubrication assembly 6 periodically. Lubrication of parts can be achieved every time the switch is made from electric to manual, and lubrication of the lubrication assembly 6 can be replenished every time the switch is made from manual to electric, which is very convenient.
[0035] Specifically, the drive assembly 5 includes a slide rail 51, a sliding block 52, a drive motor 53, a transmission rod 54, and an elastic connector 55. The slide rail 51 is horizontally disposed at the bottom of the drive cavity 12. The sliding block 52 is slidably mounted on the slide rail 51. The drive motor 53 is horizontally disposed at the top of the sliding block 52. The transmission rod 54 is mounted on the output shaft of the drive motor 53, and one end of the transmission rod 54 away from the drive motor 53 is inserted into the transmission groove 42. The elastic connector 55 is mounted on the inner side wall of the drive cavity 12, and one end of the elastic connector 55 is connected to the side wall of the drive motor 53. The drive motor 53 operates... The transmission rod 54 is driven to rotate, and the rotation of the transmission rod 54 drives the top rod 4 to rotate. When the handwheel handle 233 moves closer to the switching box 1, the inner spline sleeve 24 uses the push column 26 and push plate 27 to push the drive motor 53 and the sliding block 52 away from the top rod 4. The end of the transmission rod 54 away from the drive motor 53 moves to separate from the transmission groove 42. At the same time, the elastic connecting piece 55 is compressed and deformed. Once it is necessary to switch to the electric mode, the push column 26 and push plate 27 move to separate from the drive motor 53, and the elastic connecting piece 55 releases its elastic force to reset the drive motor 53. One end of the transmission rod 54 automatically resets to be inserted into the transmission groove 42.
[0036] Specifically, the elastic connector 55 includes a first connecting seat 56, a second connecting seat 57, and a connecting spring 58. The first connecting seat 56 is installed on the inner side wall of the drive cavity 12, and the second connecting seat 57 is installed on the side wall of the drive motor 53. The two ends of the connecting spring 58 are connected to the first connecting seat 56 and the second connecting seat 57, respectively. When the drive motor 53 moves away from the push rod 4, the connecting spring 58 is compressed and deformed between the first connecting seat 56 and the second connecting seat 57. Once it is necessary to switch to electric mode, the push rod 26 and the push plate 27 move to separate from the drive motor 53, and the connecting spring 58 releases its elastic force to reset the drive motor 53.
[0037] Specifically, the lubrication assembly 6 includes a lubrication cylinder 61, a piston 62, a push rod 63, a push block 64, a lubrication pipe 65, a nozzle 66, a one-way valve 67, a connecting bracket 68, and a connecting block 69. The lubrication cylinder 61 is horizontally positioned at the top of the switching box 1. The piston 62 is slidably mounted inside the lubrication cylinder 61. The push rod 63 is slidably mounted on the outer wall of the lubrication cylinder 61, with one end of the push rod 63 connected to the piston 62. The push block 64 is mounted on the other end of the push rod 63. The top end of the lubrication pipe 65 is connected to the lubrication cylinder 61, and the bottom end of the lubrication pipe 65 extends above the external splined shaft 3 inside the switching chamber 11. The nozzle 66 is mounted on the bottom end of the lubrication pipe 65. The one-way valve 67 is mounted on the lubrication pipe 65. The connecting bracket 68 is mounted on the outer wall of the second limiting ring 232. Furthermore, the top of the connecting frame 68 extends close to the push block 64, and the connecting block 69 is installed on the top of the connecting frame 68; while the second limiting ring 232 moves to fit against the outer wall of the switching box 1, the second limiting ring 232 pushes the connecting frame 68 and the connecting block 69 to move, the connecting block 69 pushes the push block 64 and the push rod 63 to move, and the push rod 63 pushes the piston 62 to slide in the lubrication cylinder 61. The piston 62 sprays the lubricating oil in the lubrication cylinder 61 through the lubrication pipe 65 and the nozzle 66 onto the outer spline shaft 3. As the outer spline shaft 3 rotates, while lubricating the outer spline shaft 3, a portion of the lubricating oil splashes onto the inner spline sleeve 24, ensuring the lubrication of the parts and reducing the wear of the parts. The one-way valve 67 ensures that the lubricating oil in the lubrication pipe 65 will not flow back into the lubrication cylinder 61.
[0038] Specifically, the oil replenishment assembly 7 includes a support frame 71, an oil pump 72, a first return oil pipe 73, and a second return oil pipe 74. The support frame 71 is installed on the top outer wall of the switching box 1. The oil pump 72 is horizontally set on the top of the support frame 71. The two ends of the first return oil pipe 73 are respectively connected to the input end of the oil pump 72 and the inside of the switching chamber 11. The two ends of the second return oil pipe 74 are respectively connected to the output end of the oil pump 72 and the inside of the lubrication cylinder 61. The oil pump 72 extracts excess lubricating oil from the switching chamber 11 and enters the lubrication cylinder 61 through the first return oil pipe 73 and the second return oil pipe 74, ensuring that there is always lubricating oil in the lubrication cylinder 61, eliminating the need for periodic manual addition of lubricating oil.
[0039] Specifically, the heat dissipation assembly 8 includes a heat dissipation slot 81, a heat dissipation cover 82, a dust baffle 83, a moving rack 84, a support frame 85, a rotating motor 86, a rotating gear 87, and two sliding grooves 88. The heat dissipation slot 81 is located on the top of the switching box 1 and is connected to the drive cavity 12. The heat dissipation cover 82 overlaps the heat dissipation slot 81 and has several heat dissipation holes 89. The two sliding grooves 88 are symmetrically arranged on the top of the heat dissipation cover 82. The dust baffle 83 is slidably mounted on the two sliding grooves 88. The moving rack 84 is horizontally arranged at the bottom of the dust baffle 83. The support frame 85 is mounted on the top outer wall of the switching box 1. The rotating motor 86... 6 is horizontally set on top of the support frame 85. The rotating gear 87 is installed on the output shaft of the rotating motor 86 and meshes with the moving rack 84. The rotating motor 86 drives the rotating gear 87 to rotate. The rotating gear 87 drives the dust baffle 83 to move on the two sliding grooves 88 through the moving rack 84. The dust baffle 83 moves a certain distance. At this time, the heat dissipation holes 89 on the heat dissipation cover 82 are in a state of connection with the outside. The heat dissipated by the drive motor 53 in the drive cavity 12 flows out to the outside through the heat dissipation holes 89, ensuring that the heat in the drive cavity 12 can be dissipated and ensuring the normal operation of the drive motor 53.
[0040] Specifically, the bottom of the switching chamber 11 is provided with an oil guide ramp 13, and the bottom of the oil guide ramp 13 is set towards the first return oil pipe 73. The oil guide ramp 13 facilitates the flow of lubricating oil from the bottom of the switching chamber 11 to the first return oil pipe 73, and facilitates the first return oil pipe 73 to extract the lubricating oil for recycling.
[0041] Specifically, the top of the switching box 1 is provided with an oil filling pipe 14 that is connected to the switching cavity 11, and the oil filling pipe 14 is provided with a rubber plug 15. The oil filling pipe 14 facilitates the addition of a certain amount of lubricating oil into the switching cavity 11. As long as there is a certain amount of lubricating oil in the switching cavity 11, the oil replenishment component 7 and the lubrication component 6 can be used to circulate and lubricate the internal spline sleeve 24 and the external spline shaft 3 and other parts in the switching cavity 11.
[0042] Specifically, the outer wall of the switching box 1 is provided with a transparent observation window 16 corresponding to the switching cavity 11; the transparent observation window 16 facilitates manual observation of the working status of the parts inside the switching cavity 11.
[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A mechanical handwheel switching lubrication structure, characterized in that: The system includes a switching box (1), a partition (2), a top rod (4), a drive assembly (5), a lubrication assembly (6), an oil replenishment assembly (7), and a heat dissipation assembly (8). The partition (2) is vertically arranged inside the switching box (1), dividing the internal space of the switching box (1) into a switching chamber (11) and a drive chamber (12). The handwheel drive mechanism is connected to the switching chamber (11) by two bearings. The drive assembly (5) is installed in the drive chamber (12). The lubrication assembly (6) is installed on the top of the switching box (1), with its bottom end extending into the interior of the switching chamber (11). The oil replenishment assembly (7) is installed on the top of the switching box (1). 7) One side is connected to the switching chamber (11), and the other side is connected to the lubrication assembly (6); the heat dissipation assembly (8) is installed on the top of the switching box (1), and the heat dissipation assembly (8) is connected to the drive chamber (12). The drive assembly (5) is connected to the handwheel drive mechanism through the push rod (4) and the spline structure. The handwheel drive mechanism is connected to the lubrication assembly (6) through the second limit ring (232). The bottom of the inner end of the switching chamber (11) is provided with an oil guide ramp (13), and the bottom end of the oil guide ramp (13) is set towards the first return oil pipe (73). The outer wall of the switching box (1) is provided with a transparent observation window (16) corresponding to the switching chamber (11).
2. The robotic handwheel switching lubrication structure according to claim 1, characterized in that: The handwheel shaft (23) of the handwheel drive mechanism is horizontally sleeved on the inner ring of the second bearing (22), and the front end of the handwheel shaft (23) extends to the outside of the switching box (1). A first limiting ring (231) is provided on the inner wall of the switching cavity (11) of the handwheel shaft (23), and a second limiting ring (232) is provided on the outer wall of the handwheel shaft (23) outside the switching box (1). A handwheel handle (233) is provided at the front end of the handwheel shaft (23). A first bearing (21) is installed inside the plate (2). Two fixing blocks (9) are symmetrically arranged on the inner wall of the switching cavity (11). A second bearing (22) is installed on the two fixing blocks (9). The inner spline sleeve (24) of the spline structure is installed at the tail end of the handwheel shaft (23). The outer spline shaft (3) is sleeved on the inner ring of the first bearing (21), and the end of the outer spline shaft (3) near the inner spline sleeve (24) is located in the switching cavity (11). The outer spline shaft (3) and the inner spline sleeve (24) are connected. The key sleeves (24) are matched and meshed with each other. The outer wall of the push rod (4) is provided with four protruding ridges (41). The push rod (4) is horizontally arranged inside the inner spline sleeve (24), and the end of the push rod (4) away from the inner spline sleeve (24) extends through the outer spline shaft (3) into the drive cavity (12). The end of the push rod (4) away from the inner spline sleeve (24) is provided with a transmission groove (42). The outer spline shaft (3) is provided with a cross-shaped groove for the push rod (4) to pass through. 31); Two mounting blocks (25) are symmetrically arranged on the outer wall of the inner spline sleeve (24). Each mounting block (25) is provided with a horizontal push post (26). The end of the push post (26) away from the mounting block (25) extends through the first bearing (21) to the side of the drive assembly (5). The end of the push post (26) away from the mounting block (25) is equipped with a push plate (27). One end of the drive assembly (5) is connected to the transmission groove (42) by insertion.
3. The robotic handwheel switching lubrication structure according to claim 1, characterized in that: The drive assembly (5) includes a slide rail (51), a sliding block (52), a drive motor (53), a transmission rod (54), and an elastic connector (55). The slide rail (51) is horizontally disposed at the bottom of the drive cavity (12). The sliding block (52) is slidably mounted on the slide rail (51). The drive motor (53) is horizontally disposed at the top of the sliding block (52). The transmission rod (54) is mounted on the output shaft of the drive motor (53), and one end of the transmission rod (54) away from the drive motor (53) is inserted into the transmission groove (42). The elastic connector (55) is mounted on the inner side wall of the drive cavity (12), and one end of the elastic connector (55) is connected to the side wall of the drive motor (53).
4. The robotic handwheel switching lubrication structure according to claim 3, characterized in that: The elastic connector (55) includes a first connector (56), a second connector (57) and a connecting spring (58). The first connector (56) is installed on the inner side wall of the drive cavity (12), and the second connector (57) is installed on the side wall of the drive motor (53). The connecting spring (58) is connected to the first connector (56) on one side and to the second connector (57) on the other side.
5. The robotic handwheel switching lubrication structure according to claim 1, characterized in that: The lubrication assembly (6) includes a lubrication cylinder (61), a piston (62), a push rod (63), a push block (64), a lubrication pipe (65), a nozzle (66), a one-way valve (67), a connecting bracket (68), and a connecting block (69). The lubrication cylinder (61) is horizontally arranged on the top of the switching box (1). The piston (62) is slidably installed inside the lubrication cylinder (61). The push rod (63) is slidably installed on the outer wall of the lubrication cylinder (61), and one end of the push rod (63) is connected to the piston (62). The push block (64) is installed on the push rod. At the other end of the moving rod (63), the top end of the lubrication tube (65) is connected to the lubrication cylinder (61), the bottom end of the lubrication tube (65) extends to the top of the external spline shaft (3) in the switching chamber (11), the nozzle (66) is installed at the bottom end of the lubrication tube (65), the one-way valve (67) is installed on the lubrication tube (65), the connecting frame (68) is installed on the outer wall of the second limiting ring (232), and the top end of the connecting frame (68) extends to the vicinity of the push block (64), and the connecting block (69) is installed at the top end of the connecting frame (68).
6. The robotic handwheel switching lubrication structure according to claim 1, characterized in that: The oil replenishment assembly (7) includes a support frame (71), an oil pump (72), a first return oil pipe (73), and a second return oil pipe (74). The support frame (71) is installed on the top outer wall of the switching box (1). The oil pump (72) is horizontally arranged on the top of the support frame (71). One side of the first return oil pipe (73) is connected to the input end of the oil pump (72), and the other side is connected to the interior of the switching chamber (11). One side of the second return oil pipe (74) is connected to the output end of the oil pump (72), and the other side is connected to the interior of the lubrication cylinder (61).
7. The robotic handwheel switching lubrication structure according to claim 1, characterized in that: The heat dissipation assembly (8) includes a heat dissipation groove (81), a heat dissipation cover (82), a dust baffle (83), a moving rack (84), a support frame (85), a rotating motor (86), a rotating gear (87), and two sliding grooves (88). The heat dissipation groove (81) is located on the top of the switching box (1) and is connected to the drive cavity (12). The heat dissipation cover (82) overlaps the heat dissipation groove (81) and has several heat dissipation holes (89). The two sliding grooves... The slots (88) are symmetrically arranged on the top of the heat dissipation cover (82). The dust baffle (83) is slidably installed on the two slots (88). The moving rack (84) is horizontally arranged at the bottom of the dust baffle (83). The support frame (85) is installed on the top outer wall of the switching box (1). The rotating motor (86) is horizontally arranged on the top of the support frame (85). The rotating gear (87) is installed on the output shaft of the rotating motor (86) and meshes with the moving rack (84).
8. The robotic handwheel switching lubrication structure according to claim 1, characterized in that: The top of the switching box (1) is provided with an oil filling pipe (14) that is connected to the switching chamber (11), and a rubber plug (15) is provided inside the oil filling pipe (14).