Automatic retracting and releasing mechanism of motorized capstan tail rope

Abstract

The present invention discloses an automatic retracting and releasing mechanism for the tail rope of a motorized capstan. The mechanism comprises: a frame; a fixed angle transmission box and a clamping and fixing block are arranged at intervals on the frame; a base is arranged in the middle of the frame between the fixed angle transmission box and the clamping and fixing block, a rotating angle transmission box is rotatably arranged on the base, and a spring is arranged between the rotating angle transmission box and the clamping and fixing block; a rope clamping wheel is arranged on the output shaft on the same side of the fixed angle transmission box and the rotating angle transmission box; a transmission device is connected to the power input shaft of the fixed angle transmission box and the rotating angle transmission box to drive the rope clamping wheels of the fixed angle transmission box and the rotating angle transmission box to rotate in opposite directions at the same speed; the power input shaft of the transmission device is connected to the drum shaft of the motorized capstan through a one-way transmission mechanism. The present invention has a simple overall structure and is easy to use. Less devices are added outside the motorized capstan body, which avoids the difficulty of transportation; and it is not strictly restricted by the construction site.

Description

Technical Field

[0001] The invention relates to an automatic retracting and releasing mechanism for a motorized capstan tail rope. Background Art

[0002] At present, one end of the motorized capstan is connected to the workpiece to be lifted, and the middle part is wrapped around the grinding drum. The other end (tail end) of the wire rope is controlled by manpower (at least two people tighten it). When the capstan is pulling, the tail rope tension is provided by manpower. When the capstan is releasing the wire, the rope-pulling personnel must actively control the rope-releasing speed. The tail rope staff needs to maintain a pulling force of 20 to 50 kilograms for a long time to ensure its normal operation. The two operators cannot let go at the same time. The labor intensity of the workers is high and there are safety hazards. Due to the lack of safety facilities for field construction, safety accidents caused by improper operation of the capstan or the capstan's own failures during construction are often very serious. Summary of the invention

[0003] In order to overcome the above-mentioned defects, the object of the present invention is to provide a mechanism for automatically retracting and releasing the tail rope of a motorized capstan.

[0004] In order to achieve the above-mentioned object, the automatic retracting and releasing mechanism of the tail rope of the motorized capstan mill of the present invention comprises:

[0005] A frame is installed on one side of the motorized capstan;

[0006] A fixed angle transmission box and a clamping block are arranged at intervals on the frame; a base is arranged in the middle of the frame between the fixed angle transmission box and the clamping block, a rotating angle transmission box is rotatably arranged on the base, and a spring is arranged between the rotating angle transmission box and the clamping block;

[0007] A rope clamping wheel is provided on the output shafts on the same side of the fixed angle transmission box and the rotating angle transmission box;

[0008] A transmission device is connected to the power input shafts of the fixed angle transmission box and the rotating angle transmission box to drive the rope clamping wheels of the fixed angle transmission box and the rotating angle transmission box to rotate in opposite directions at the same speed; the power input shaft of the transmission device is connected to the drum shaft of the motorized capstan through a one-way transmission mechanism.

[0009] Furthermore, a handle is provided on the rotation angle transmission box.

[0010] Furthermore, the power output shaft of the rotation angle transmission box extends forward to form the handle.

[0011] Furthermore, the transmission device includes: a power input shaft and two power output shafts, and the same transmission gears are provided on the power input shaft and the two power output shafts; wherein the power input shaft is connected to a power output shaft through a transmission gear; and the power input shaft is connected to the transmission gear of another power output shaft through a same transition gear.

[0012] Furthermore, bevel gears are provided on the rotating shaft of the capstan mill and the power input shaft, and the rotating shaft of the capstan mill and the power input shaft are connected through the bevel gear transmission.

[0013] Furthermore, the power input shaft is composed of two oppositely arranged half-shafts, and the one-way transmission mechanism is arranged at one opposite end of the two half-shafts.

[0014] Furthermore, the one-way transmission mechanism includes: an end ratchet is arranged at the end of one half of the shaft; a spline groove is axially arranged at the opposite end of the other half of the shaft, and an end ratchet slide seat adapted to the end ratchet is slidably arranged on the spline groove; a spring is sleeved on the other half of the shaft, and the spring is pressed against the end ratchet slide seat.

[0015] Furthermore, a spring positioning column is arranged on one side of the rotation angle transmission box corresponding to the spring.

[0016] The automatic retracting and releasing mechanism of the tail rope of the motorized capstan of the present invention is connected to the fixed angle transmission box and the rotating angle transmission box through the transmission box connected to the capstan transmission, so that the rope clamping wheels of the rotating angle transmission device and the fixed angle transmission box are synchronized with the speed of the capstan drum; by setting a one-way transmission mechanism, the tail rope can be clamped by two rope clamping wheels and provide traction during traction; and the one-way transmission mechanism slips during line release and does not generate force on the tail rope. The overall structure of the present invention is simple and easy to use. There are fewer devices added outside the motorized capstan body, which avoids the difficulty of transportation; at the same time, it is not subject to strict restrictions on the construction site. It can not only meet the load requirements of the capstan, but also greatly improve the construction efficiency. At the same time, the research results can realize that the tension of the tail rope of the capstan is generated by machinery instead of manual labor, reducing the number of operators, eliminating the unsafe factors when the workers pull the tail rope by hand behind the capstan, directly reducing the strong connection between the on-site personnel and the capstan, and significantly reducing the construction safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a transmission diagram of an embodiment of the automatic retracting and releasing mechanism of the tail rope of a motorized capstan mill of the present invention;

[0018] Figure 2 A front view of an embodiment of the automatic retractable mechanism for the tail rope of a motorized capstan according to the present invention;

[0019] Figure 3 for Figure 2 Rear view of.

[0020] Figure 4 , is the transmission schematic diagram of the fixed angle transmission box.

[0021] Figure 5 , is the transmission schematic diagram of the rotation angle transmission box.

[0022] Figure 6 , schematic diagram of the structure of the ratchet pair in a single transmission mechanism.

[0023] Figure 7 It is a schematic diagram of the rope clamping status of two rope clamping wheels.

[0024] Figure 8 It is a schematic diagram when the rotation angle transmission box is opened.

[0025] Fig. 9 It is a schematic diagram of the overall structure of an embodiment.

[0026] Fig.10 It is a schematic diagram of the overall structure of another embodiment.

[0027] Fig.11 It is a schematic diagram of the overall structure of another embodiment.

[0028] Explanation of the figure numbers: 1. Output shaft; 2. Grinding cylinder; 3. Bevel gear (module 2, number of teeth 56); 4. Small bevel gear (module 2, number of teeth 18); 5. Ratchet shaft fixing block; 6. Ratchet shaft (10 teeth); 7. Ratchet slide (10 teeth); 8. Spline shaft; 9. Tooth row fixing block; 10 / 19 / 20 / 27. Tooth row gear (module 2, number of teeth 17); 11. Fixed guide input shaft; 12. Fixed guide fixing block; 13. Rope clamping wheel; 14. Fixed guide output shaft; 15. Flange; 16 / 17 / 22 / 23. Universal bevel gear (module 2.5, number of teeth 20); 18. Tooth row transition shaft; 21. Rotation angle transmission box; 24. Clamping rope wheel; 25. Rotation angle transmission box output shaft; 26. Rotation angle transmission box input shaft (power output shaft of transmission device); 28. Spring; 29. ​​Upper guide wheel; 30. Clamping fixed block; 31. Adjustment hand wheel; 32. Box cover DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific embodiments. Please note that the embodiments described below are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. If no specific technology or conditions are specified in the embodiments, the technology or conditions described in the literature in the art or the product instructions shall be followed.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1 to 11 As shown, a frame is installed on one side of the motorized capstan; a fixed angle transmission box and a clamping block 30 are arranged at intervals on the frame; a base is arranged in the middle of the frame between the fixed angle transmission box and the clamping block, a rotating angle transmission box 21 is rotatably arranged on the base, and a spring 28 is arranged between the rotating angle transmission box and the clamping block;

[0032] The fixed angle transmission box is provided with a rope clamping wheel 13, and the output shaft on the same side of the rotating angle transmission box is provided with a rope clamping wheel 24;

[0033] A transmission device is connected to the power input shafts of the fixed angle transmission box and the rotating angle transmission box to drive the rope clamping wheels of the fixed angle transmission box and the rotating angle transmission box to rotate in opposite directions at the same speed; the power input shaft of the transmission device is connected to the drum shaft of the motorized capstan through a one-way transmission mechanism.

[0034] The automatic retracting and releasing mechanism of the tail rope of the motorized capstan of the present invention is connected to the fixed angle transmission box and the rotating angle transmission box through a transmission box connected to the capstan transmission, so that the rope clamping wheels of the rotating angle transmission device and the fixed angle transmission box are synchronized with the speed of the capstan drum; by setting a one-way transmission mechanism, the tail rope can be clamped by two rope clamping wheels and provide traction force during traction; and the one-way transmission mechanism slips during line release and does not generate any force on the tail rope.

[0035] like Figures 1 to 11 As shown, the bevel gear 3 (module 2, number of teeth 56) is fixed on the fixed shaft of one side roller of the double-roller mill, and the small bevel gear 4 (module 2, number of teeth 18) is a bevel gear paired with the bevel gear 3. After meshing, the axial angle between the two gears is 90°. The small bevel gear 4 is fixed to the lower end of the ratchet shaft fixing block 5. The ratchet shaft fixing block is fixed to the frame through a bearing. A part of the one-way clutch (ratchet shaft) is fixed to the upper end of the ratchet shaft fixing block 5. The tooth row 9 fixing block is fixed to the frame through a bearing and is located on the same axis as the ratchet shaft fixing block 5. The lower end of the tooth row is fixed to the ratchet slide seat, another part of the one-way clutch, and the ratchet shaft is in contact and meshing with the ratchet slide seat.

[0036] On one side of the gear row ⑨, a fixed guide fixing block 12, a rotation angle transmission box input shaft 26, and a gear row transition gear 18 are fixed in parallel, all of which are fixed on the frame through bearings.

[0037] like Figure 4 As shown, the gear 16 in the fixed angle transmission box is a bevel gear matched with the gear 17. After meshing, the axial angle between the two gears is 90°, and a clamp rope 13 is installed on the power output shaft 14 of the fixed angle transmission box. If the structure allows, the box body of the fixed angle transmission box can be omitted, and the shaft of the gear 16 fixed by the frame is the shaft of the gear 17.

[0038] like Figure 5 As shown, the gear 22 in the rotation angle transmission box 21 is a bevel gear matched with the gear 23. After meshing, the axial angle between the two gears is 90°. The gear 22 is fixed on the power output shaft 26, and the gear 23 is fixed on one side of the rotation angle transmission box output shaft 25. The rotation angle transmission box output shaft 25 is fixed on the rotation angle transmission box through a bearing. A rope clamping wheel 24 is fixed on one side of the rotation angle transmission box output shaft 25 extending out of the rotation angle transmission box; and the rotation angle transmission box output shaft 25 continues to extend outward to form a handle.

[0039] The rotation angle transmission box 21 is installed on the base of the frame through a bearing. The rotation angle transmission box 21 can rotate around the power output shaft 26. During the rotation, the gear 22 is always in a meshing state with the gear 23.

[0040] A spring 28 is provided between the rotation angle transmission box 21 and the clamping fixed block 30. The spring 28 is used to press the rotation angle transmission box 21 toward one side of the fixed angle transmission box so that the two rope clamping wheels clamp each other to clamp the tail rope. The compression spring screw is provided in the clamping fixed block 30 and compresses the spring 28 through the spring tube. By rotating the adjusting hand wheel, the pressure of the spring 28 on the rotation angle transmission box 21 can be adjusted.

[0041] The rope clamping wheels 13 and 24 are grooved wheel structures, and the profile of the groove is consistent with the diameter of the tail rope.

[0042] Working process:

[0043] Before the capstan is operated, the hand wheel is rotated counterclockwise to loosen the spring 28, and then the rotation angle transmission box 21 is rotated to put the tail rope between the rope clamping wheels 13 and 24. Afterwards, the handle is rotated clockwise to compress the rotation angle transmission box 21 through the spring 28, and then the tail rope is fixed.

[0044] The power of the capstan is transmitted to the grinding cylinder and then to the small bevel gear 4 through the bevel gear 3, driving the ratchet shaft 6 to rotate. Under the joint action of the ratchet pair and the spring, the ratchet slide can move along the key direction on the spline shaft 8. There are two working states:

[0045] State 1, when the capstan is traction, the ratchet pair is relatively still, the spring presses the ratchet slide seat, and the power enters the gear row assembly along the spline shaft 8 through the gear 20 to complete the rotation of the universal head assembly and the fixed guide assembly in two opposite directions.

[0046] When the capstan is in the traction mode, the rotation direction of the gear 20 makes the one-way clutch in the combined connection state. While the capstan is traction, the device can use the power of the roller to tighten the tail rope.

[0047] State 2, when the capstan is releasing the wire, the bevel gear 3 rotates in the opposite direction, the ratchet pairs disengage from each other, the spring tracking outside the spline shaft jumps, the ratchet slide is lifted, the spline shaft 8 and the rear gear row assembly are separated from the input ratchet shaft, and at this time, the rotating angle transmission box and the fixed angle transmission box passively rotate in the opposite direction driven by the rope clamping wheel.

[0048] When the capstan is in the wire-releasing working condition, the rotation direction of the gear 20 makes the one-way clutch in a disconnected state, and the force of the roller cannot be transmitted to the tail, and the tail rope is in a free state.

[0049] The connection forms of the automatic retractable tail rope mechanism of the motorized capstan of the present invention and the motorized capstan are various and can be designed according to actual needs, such as Fig. 9 As shown, the device is located between the driving part and the grinding cylinder, and the clamping wheel and the adjusting hand wheel are arranged in a vertical direction. Fig.10 Middle: This device is located outside the grinding cylinder, and the clamping wheel and the adjusting hand wheel are arranged horizontally. Fig.11 Middle: This device is located outside the grinding cylinder, and the clamping wheel and the adjusting hand wheel are arranged vertically.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention. At the same time, a person skilled in the art may make changes in the specific implementation methods and scope of application based on the ideas of the present application.

Claims

1. The automatic retracting and releasing mechanism of the tail rope of the motorized capstan is characterized by: include: A frame is installed on one side of the motorized capstan; A fixed angle transmission box and a clamping block are arranged at intervals on the frame; a base is arranged in the middle of the frame between the fixed angle transmission box and the clamping block, a rotating angle transmission box is rotatably arranged on the base, and a spring is arranged between the rotating angle transmission box and the clamping block; A rope clamping wheel is provided on the output shafts on the same side of the fixed angle transmission box and the rotating angle transmission box; A transmission device is connected to the power input shafts of the fixed angle transmission box and the rotating angle transmission box to drive the rope clamping wheels of the fixed angle transmission box and the rotating angle transmission box to rotate in opposite directions at the same speed; the power input shaft of the transmission device is connected to the drum shaft of the motorized capstan through a one-way transmission mechanism; A handle is provided on the rotation angle transmission box; Bevel gears are arranged on the rotating shaft of the capstan mill and the power input shaft, and the rotating shaft of the capstan mill and the power input shaft are connected through the bevel gear transmission.

2. The automatic retracting and releasing mechanism for the tail rope of a motorized capstan as claimed in claim 1, characterized in that: The power output shaft of the rotation angle transmission box extends forward to form the handle.

3. The automatic retractable mechanism for the tail rope of a motorized capstan as claimed in claim 1, characterized in that: The transmission device includes: a power input shaft and two power output shafts, and the same transmission gears are provided on the power input shaft and the two power output shafts; wherein the power input shaft is connected to a power output shaft through a transmission gear; and the power input shaft is connected to the transmission gear of another power output shaft through a same transition gear.

4. The automatic retractable mechanism for the tail rope of a motorized capstan as claimed in claim 1, characterized in that: The power input shaft is composed of two half-shafts arranged opposite to each other, and the one-way transmission mechanism is arranged at one opposite end of the two half-shafts.

5. The automatic retractable mechanism for the tail rope of a motorized capstan as claimed in claim 4, characterized in that: The one-way transmission mechanism includes: an end ratchet is arranged at the end of one of the half shafts; a spline groove is axially arranged at the opposite end of the other half shaft, and an end ratchet slide seat adapted to the end ratchet is slidably arranged on the spline groove; a spring is sleeved on the other half shaft, and the spring is pressed against the end ratchet slide seat.

6. The automatic retracting and releasing mechanism for the tail rope of a motorized capstan as claimed in claim 4, characterized in that: A guide wheel is arranged on one side of the rope clamping wheel on the frame.

7. The automatic retractable mechanism for the tail rope of a motorized capstan as claimed in claim 1, characterized in that: A spring barrel is arranged on the clamping and fixing block corresponding to the spring, one end of the spring is located in the spring barrel; a thread is arranged on the other end of the spring barrel; a compression spring screw is screwed in the thread; and a hand wheel is arranged on the compression spring screw.

8. The automatic retracting and releasing mechanism for the tail rope of a motorized capstan as claimed in claim 7, characterized in that: A spring positioning column is arranged on one side of the rotation angle transmission box corresponding to the spring.

Images