Motor driving and hand-cranking driving integrated speed reducer and operation method thereof

Abstract

The invention discloses a motor drive and hand drive integrated speed reducer and an operation method, the motor drive and hand drive integrated speed reducer comprises an electric drive input shaft and a manual input shaft, the electric drive input shaft is in transmission connection with an electric drive input gear, and the manual input shaft is in transmission connection with a manual input gear; an output gear is mounted on the output shaft; the gear sleeve is in transmission connection with the output gear, and at least part of the gear sleeve is operably switched to the electric drive input gear or the manual input gear, so that the output gear is in transmission connection with the electric drive input gear or the manual input gear through the gear sleeve. The device is simple in structure, high in safety, convenient to operate and maintain and compact in structure.

Description

Technical Field

[0001] The present invention relates to the technical field of speed reducers, and in particular to a motor-driven and hand-cranked integrated speed reducer and an operating method thereof. Background Art

[0002] In daily work or life, we occasionally encounter elevators, hoists, cranes and other electromechanical equipment that cannot operate due to power outages due to accidents or malfunctions. The brake device needs to be released manually, and the car or lifting platform slowly descends by its own weight. It can only run in one direction. The ratchet and other check devices used in the hand-cranked transmission device need to be manually controlled separately, which has low safety, poor reliability and inconvenient maintenance.

[0003] Therefore, how to develop a device that has both a hand-cranked slow lifting function to meet the requirements of close-range disassembly, installation and maintenance work, and a motor-driven fast lifting function to meet the requirements of fast lifting and moving work is a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of the above problems existing in the existing reducers, the present invention aims to provide a motor-driven and hand-driven integrated reducer and an operating method thereof.

[0005] The specific technical solutions are as follows:

[0006] A motor-driven and hand-cranked integrated reducer comprises: an electric drive input shaft and a manual input shaft, wherein the electric drive input shaft is connected to an electric drive input gear in a transmission manner, and the manual input shaft is connected to a manual input gear in a transmission manner;

[0007] An output shaft, on which an output gear is mounted;

[0008] A gear sleeve, the gear sleeve is drivingly connected to the output gear, and at least a portion of the gear sleeve can be operably switched to the electric drive input gear or the manual input gear, so that the output gear is drivingly connected to the electric drive input gear or the manual input gear through the gear sleeve.

[0009] The above-mentioned motor-driven and hand-cranked integrated reducer, among others, further includes: a switching component, wherein the switching component is drivingly connected to the gear sleeve to switch the gear sleeve so that the gear sleeve is drivingly connected to the electric drive input gear or the manual input gear.

[0010] In the above-mentioned motor-driven and hand-cranked integrated reducer, the electric drive input gear and the manual input gear are located on both sides of the output gear.

[0011] The above-mentioned motor-driven and hand-cranked integrated reducer, wherein the switching assembly includes: at least one shift fork, a shift fork rod and a handle group, one end of the shift fork is slidably arranged on the gear sleeve through a pin shaft, the other end of the shift fork is connected to the shift fork rod, and the handle group is installed on the shift fork rod.

[0012] The above-mentioned motor-driven and hand-driven integrated reducer, wherein the manual input shaft is transmission-connected to the manual input gear through a transmission mechanism.

[0013] The above-mentioned motor-driven and hand-cranked integrated reducer, wherein the transmission mechanism includes: a clutch and a transmission assembly, the manual input shaft is transmission-connected to the transmission assembly through the clutch, and the transmission assembly is transmission-connected to the manual input gear.

[0014] The above-mentioned motor-driven and hand-driven integrated reducer, wherein the clutch is a CKS type bidirectional wedge block overrunning clutch.

[0015] An operating method, wherein the motor-driven and hand-driven integrated reducer as described in any one of the above, the operating method comprising: moving the handle group left and right to move the gear sleeve along the axial direction of the output shaft;

[0016] When the gear sleeve is meshed with the electric drive input gear, the electric drive input shaft sequentially drives the electric drive input gear, the gear sleeve, and the output gear to rotate the output shaft;

[0017] When the gear sleeve is meshed with the manual input gear, the transmission mechanism drives the manual input gear, the gear sleeve, and the output gear in sequence to rotate the output shaft.

[0018] Compared with the prior art, the above technical solution has the following positive effects:

[0019] The invention has the advantages of simple structure, high safety, convenient operation and maintenance, and compact structure. In particular, when some important equipment cannot work due to sudden power failure or needs to be accurately driven slowly, the purpose can be achieved by manually cranking forward and reverse driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a motor-driven and hand-driven integrated reducer of the present invention;

[0021] Figure 2 The invention discloses a motor-driven and hand-driven integrated reducer. Figure 1 Sectional view in the AA direction;

[0022] Figure 3The invention discloses a motor-driven and hand-driven integrated reducer. Figure 1 Cross-sectional view in the BB direction;

[0023] In the accompanying drawings: 1. electric drive input shaft; 2. manual input shaft; 3. output shaft; 4. gear sleeve; 5. electric drive input gear; 6. manual input gear; 7. output gear; 8. switching assembly; 9. transmission mechanism; 10. groove; 11. first shaft; 12. second shaft; 13. third shaft; 14. fourth shaft; 21. first gear; 22. second gear; 23. third gear; 24. fourth gear; 25. fifth gear; 26. first bevel gear; 27. second bevel gear; 28. synchronous wheel; 81. shift fork; 82. shift fork rod; 83. handle group; 84. positioning hole; 85. rotating handle; 86. plug-in handle; 87. spring; 88. rolling bearing; 91. clutch; 92. transmission assembly; 93. drive group; 94. bearing seat; 95. hand-held crank handle. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0025] like Figures 1 to 3 As shown, a preferred embodiment of a motor-driven and hand-driven integrated reducer is shown, including: an electric drive input shaft 1, a manual input shaft 2, an output shaft 3 and a gear sleeve 4, the electric drive input shaft 1 is transmission-connected with an electric drive input gear 5, the manual input shaft 2 is transmission-connected with a manual input gear 6, the output shaft 3 is equipped with an output gear 7, the gear sleeve 4 is transmission-connected to the output gear 7, and at least a portion of the gear sleeve 4 can be operably switched to the electric drive input gear 5 or the manual input gear 6, so that the output gear 7 is transmission-connected to the electric drive input gear 5 or the manual input gear 6 through the gear sleeve 4.

[0026] Furthermore, as a preferred embodiment, the motor-driven and hand-driven integrated reducer also includes: a switching component 8, which is transmission-connected to the gear sleeve 4 to switch the gear sleeve 4 so that the gear sleeve 4 is transmission-connected to the electric drive input gear 5 or the manual input gear 6.

[0027] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation and protection scope of the present invention.

[0028] The present invention also has the following implementation modes on the basis of the above:

[0029] In further embodiments of the present invention, please continue to refer to Figures 1 to 3 As shown, the electric drive input gear 5 and the manual input gear 6 are located on both sides of the output gear 7.

[0030] In a further embodiment of the present invention, the gear parameters of the electric drive input gear 5, the output gear 7, and the manual input gear 6 are all the same.

[0031] Preferably, the number of teeth of the electric drive input gear 5, the number of teeth of the output gear 7, and the number of teeth of the manual input gear 6 are the same, the module of the electric drive input gear 5, the module of the output gear 7, and the module of the manual input gear 6 are the same, the outer diameter of the electric drive input gear 5, the outer diameter of the output gear 7, and the outer diameter of the manual input gear 6 are equal, and the electric drive input gear 5, the output gear 7, and the manual input gear 6 are all spur gears.

[0032] In a further embodiment of the present invention, the electric drive input gear 5, the output gear 7, and the manual input gear 6 are coaxially arranged.

[0033] In a further embodiment of the present invention, the manual input shaft 2 is transmission-connected to the manual input gear 6 via a transmission mechanism 9 .

[0034] In a further embodiment of the present invention, the transmission mechanism 9 includes: a clutch 91 and a transmission assembly 92 , the manual input shaft 2 is transmission-connected to the transmission assembly 92 via the clutch 91 , and the transmission assembly 92 is transmission-connected to the manual input gear 6 .

[0035] In a further embodiment of the present invention, the clutch 91 is a CKS type bidirectional wedge overrunning clutch.

[0036] Preferably, a CKS type bidirectional wedge overrunning clutch has a shaft hole at one end connected to the driving shaft and a shaft hole at the other end connected to the driven shaft, and an outer ring is fixed on the bearing seat 94 and does not move. When the manual input shaft 2 rotates clockwise or counterclockwise, the first shaft 11 also rotates synchronously in the same direction. When the first shaft 11 is subjected to an external torque, the manual input shaft 2 cannot rotate either clockwise or counterclockwise.

[0037] Preferably, the manual input shaft 2 is supported by a bearing and an active side of the clutch 91, and the transmission assembly 92 includes: a first shaft 11, the first shaft 11 is supported by a bearing and a driven side of the clutch 91, and the first shaft 11 coincides with the central axis of the manual input shaft 2;

[0038] A first gear 21 is mounted on the first shaft 11;

[0039] The manual input gear 6 is provided with a synchronous wheel 28, which is coaxially arranged with the manual input gear 6, and the first gear 21 is connected to the synchronous wheel 28 through a driving group 93;

[0040] The driving group includes: a second shaft 12, a third shaft 13 and a fourth shaft 14, the second shaft 12 is provided with a second gear 22 and a third gear 23, the second gear 22 is meshed with the first gear 21, the third shaft 13 is provided with a fourth gear 24 and a first bevel gear 26, the fourth gear 24 is meshed with the third gear 23, the fourth shaft 14 is provided with a second bevel gear 27 and a fifth gear 25, the second bevel gear 27 is meshed with the first bevel gear 26, and the fifth gear 25 is meshed with the synchronous gear 28;

[0041] The first shaft 11, the second shaft 12, and the third shaft 13 are arranged in parallel, the fourth shaft 14 is arranged perpendicular to the third shaft 13, and the fourth shaft 14 is parallel to the output shaft 3;

[0042] The synchronous wheel 28 and the manual input gear 6 are an integrated structure;

[0043] The outer diameter of the synchronous wheel 28 is larger than the outer diameter of the manual input gear 6 .

[0044] The outer ring of the clutch 91 is fixed to the bearing seat 94 by bolts.

[0045] Preferably, the manual input gear 6 is rotatably mounted on the output shaft 3 via a bearing.

[0046] Preferably, the end of the output shaft 3 is rotatably matched with the electric drive input shaft 1 through a bearing, and the central axis of the output shaft 3 coincides with the central axis of the electric drive input shaft 1, so that the electric drive input gear 5, the output gear 7, and the manual input gear 6 are coaxially arranged, the structure is compact, and the overall space is reduced. Since the installation space at the car is limited, it is also very necessary to reduce the size of the reducer.

[0047] Preferably, a groove 10 is provided at the end of the electric drive input shaft 1, and the end of the output shaft 3 extends into the groove 10, and the output shaft 3 is rotatably matched with the inner wall of the groove 10 through a bearing.

[0048] A hand crank 95 is installed on the manual input shaft 2. The hand crank 95 is rotated to drive the manual input shaft 2 to rotate. The first shaft 11 is rotated through the clutch 91. The first gear 21 drives the second shaft 12 to rotate through the second gear 22. The third gear 23 drives the third shaft 13 to rotate through the fourth gear 24. The first bevel gear 26 drives the fourth shaft 14 to rotate through the second bevel gear 27. The fifth gear 25 drives the manual input gear 6 to rotate through the synchronous gear 28. If the gear sleeve 4 is respectively engaged with the manual input gear 6 and the output gear 7 at this time, the output shaft 3 can rotate.

[0049] The motor-driven and hand-driven integrated reducer also includes: a motor (not shown in the figure), which is drivingly connected to the electric drive input shaft 1;

[0050] It also includes: a coupling (not shown in the figure), through which the motor is drivingly connected to the electric drive input shaft.

[0051] In a further embodiment of the present invention, the switching assembly 8 includes: at least one shift fork 81, a shift fork rod 82 and a handle group 83, one end of the shift fork 81 is slidably disposed on the gear sleeve 4 through a pin shaft, the other end of the shift fork 81 is connected to the shift fork rod 82, and the handle group 83 is installed on the shift fork rod 82.

[0052] The handle assembly is rotated to rotate the shift fork rod 82 , thereby driving the shift fork 81 to rotate synchronously. The shift fork 81 is slidably matched with the gear sleeve 4 through the rolling bearing 88 , thereby driving the gear sleeve 4 to move axially along the output shaft 3 .

[0053] There are two shift forks 81, so the driving is more stable.

[0054] A positioning hole 84 is provided on the side wall of the reducer, and the handle group 83 includes: a rotating handle 85 and a plug-in handle 86, the plug-in handle 86 is slidably connected to one end of the rotating handle 85, and the other end of the rotating handle 85 is transmission-connected to the fork rod 82, and the plug-in handle 86 is positioned and matched with the positioning hole 84.

[0055] When the handle assembly 83 is needed to adjust the position of the gear sleeve 4 , the plug-in handle 86 needs to be pulled out from the positioning hole 84 first, and then the plug-in handle 86 is rotated to drive the rotating handle 85 to rotate.

[0056] A spring 87 is provided between the rotating handle 85 and the plug-in handle 86. The elastic force of the spring 87 allows the plug-in handle 86 to be inserted into the positioning hole 84. When not in use, the plug-in handle 86 will not fall off, ensuring that the gear sleeve 4 will only slide during manual operation, thereby ensuring the safe operation of the equipment, which can be electromechanical equipment such as elevators, lifts, and cranes.

[0057] An operating method of a motor-driven and hand-cranked integrated reducer, comprising a motor-driven and hand-cranked integrated reducer, the operating method comprising: rotating a handle assembly 83 (such as Figure 3 Turn the handle assembly 83 left and right as shown, Figure 2 The handle assembly 83 is rotated forward and backward as shown to move the gear sleeve 4 along the axial direction of the output shaft 3;

[0058] When the gear sleeve 4 is meshed with the electric drive input gear 5, the electric drive input shaft 1 sequentially drives the electric drive input gear 5, the gear sleeve 4, and the output gear 7 to rotate the output shaft 3;

[0059] When the gear sleeve 4 is meshed with the manual input gear 6 , the transmission mechanism 9 drives the manual input gear 6 , the gear sleeve 4 , and the output gear 7 in sequence, so that the output shaft 3 rotates.

[0060] The present invention has two working modes: motor drive and hand-crank drive. It is equipped with a clutch 91, a switching component 8 and a hand-crank handle 95. The two working modes do not interfere with each other. After one assembly, the switching component 8 and the hand-crank handle 95 can be used to switch between the electric drive and the hand-crank drive at will, without changing the hardware or re-debugging. The structure is simple, safe, easy to operate and compact. In particular, when some important equipment suddenly loses power and cannot work, or when precise installation and debugging of precision equipment requires precise slow drive, the purpose can be achieved by hand-cranking forward and reverse drive.

[0061] The maintenance point of some elevators is set at the top or bottom of a high-rise building. If the elevator car is far away from the maintenance point, the elevator car is first driven by a motor to the vicinity of the maintenance point, and then driven slowly and precisely by hand.

[0062] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor-driven and hand-driven integrated reducer, characterized in that: include: An electric drive input shaft and a manual input shaft, wherein the electric drive input shaft is transmission-connected with an electric drive input gear, and the manual input shaft is transmission-connected with a manual input gear; An output shaft, on which an output gear is mounted; A gear sleeve, the gear sleeve is drivingly connected to the output gear, and at least a portion of the gear sleeve can be operably switched to the electric drive input gear or the manual input gear, so that the output gear is drivingly connected to the electric drive input gear or the manual input gear through the gear sleeve.

2. The motor-driven and hand-driven integrated reducer according to claim 1, characterized in that: Also includes: A switching component is drivingly connected to the gear sleeve to switch the gear sleeve so that the gear sleeve is drivingly connected to the electric drive input gear or the manual input gear.

3. The motor-driven and hand-driven integrated reducer according to claim 2 is characterized in that: The switching assembly includes: at least one shift fork, a shift fork rod and a handle group, one end of the shift fork is slidably arranged on the gear sleeve through a pin shaft, the other end of the shift fork is connected to the shift fork rod, and the handle group is installed on the shift fork rod.

4. The motor-driven and hand-driven integrated reducer according to claim 3 is characterized in that: The manual input shaft is transmission-connected to the manual input gear via a transmission mechanism.

5. The motor-driven and hand-driven integrated reducer according to claim 4, characterized in that: The transmission mechanism comprises: a clutch and a transmission assembly, the manual input shaft is transmission-connected to the transmission assembly via the clutch, and the transmission assembly is transmission-connected to the manual input gear.

6. The motor-driven and hand-driven integrated reducer according to claim 5, characterized in that: The clutch is a CKS type bidirectional wedge overrunning clutch.

7. The motor-driven and hand-driven integrated reducer according to claim 6, characterized in that: The manual input shaft is supported by the active side of the clutch through a bearing; The transmission assembly includes: a first shaft, the first shaft is supported by the bearing and the driven side of the clutch, the first shaft coincides with the central axis of the manual input shaft; A first gear is mounted on the first shaft; The manual input gear is provided with a synchronous wheel, the synchronous wheel is coaxially arranged with the manual input gear, and the first gear is transmission-connected with the synchronous wheel through the driving group.

8. The motor-driven and hand-driven integrated reducer according to claim 7, characterized in that: The driving group includes: a second shaft, a third shaft and a fourth shaft, the second shaft is mounted with a second gear and a third gear, the second gear is meshed with the first gear, the third shaft is provided with a fourth gear and a first bevel gear, the fourth gear is meshed with the third gear, the fourth shaft is provided with a second bevel gear and a fifth gear, the second bevel gear is meshed with the first bevel gear, and the fifth gear is meshed with the synchronous wheel.

9. The motor-driven and hand-driven integrated reducer according to claim 8, characterized in that: The synchronous wheel and the manual input gear are an integrated structure.

10. A method for operating a motor-driven and hand-driven integrated reducer, characterized in that: The motor-driven and hand-driven integrated reducer comprises any one of claims 3 to 9, wherein the operation method comprises: pulling the handle group left and right to move the gear sleeve along the axial direction of the output shaft; When the gear sleeve is meshed with the electric drive input gear, the electric drive input shaft sequentially drives the electric drive input gear, the gear sleeve, and the output gear to rotate the output shaft; When the gear sleeve is meshed with the manual input gear, the transmission mechanism drives the manual input gear, the gear sleeve, and the output gear in sequence to rotate the output shaft.

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