Winching machine

Abstract

The invention provides a winching machine. The winching machine comprises a base; the winding piece is rotatably arranged on the base around the axis of the winding piece; the driving piece is arranged on the base, and the driving piece is in driving connection with the winding piece so as to drive the winding piece to rotate; the passive braking assembly comprises a centrifugal swing rod and a reset piece, the first end of the centrifugal swing rod is hinged to the wire winding piece, the hinge axis of the centrifugal swing rod is parallel to the axis of the wire winding piece, and the reset piece is arranged between the wire winding piece and the centrifugal swing rod so as to apply reset force swinging inwards to the second end of the centrifugal swing rod. Wherein the passive braking assembly has a braking state and a loosening state, when the passive braking assembly is in the braking state, the second end of the centrifugal swing rod swings outwards and can be connected with the base in a clamped mode, and when the passive braking assembly is in the loosening state, the second end of the centrifugal swing rod is separated from the base. According to the technical scheme provided by the invention, the problem that the winching machine cannot be braked in time when the active braking mechanism or the control part breaks down in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction equipment, in particular to a capstan grinder. Background Art

[0002] The capstan is a multifunctional construction machine used for erecting aerial high-voltage transmission lines, laying underground cables, and lifting and traction. It is mainly used to provide tension or traction. The capstan can cope with lifting and traction operations under various complex conditions to ensure the smooth progress of the project and the safety of the operators. The working principle of the capstan is to drive one or more winding poles through an electric motor, internal combustion engine or other power source, and use the winding pole to wind up winding objects such as wire ropes, cables or ropes. Through the stretching and contraction of these winding objects, the cables and wire ropes can be tensioned and released, or the heavy objects can be lifted and moved.

[0003] In the related art, the capstan includes a base, a driving member and a winding member arranged on the base. When in use, the cable or wire needs to be manually wound several turns on the winding member in advance. The driving member is connected to the winding member to drive the winding member to wind and pull the cable wound on the drum. The capstan also includes an active braking mechanism and a control member. The control member sends a control signal. After the active braking mechanism receives the control signal from the control member, the active control mechanism brakes the winding member.

[0004] However, the active braking mechanism in the related art relies on a control signal for braking, and the reaction time of the active braking mechanism depends on the response speed of the control component. When the active braking mechanism or the control component fails, the active braking mechanism in the related art cannot lock the winding mechanism in time, so that the winch cannot be braked in time. Summary of the invention

[0005] The present invention provides a capstan to solve the problem in the related art that the capstan cannot be braked in time when an active braking mechanism or a control component fails.

[0006] The present invention provides a capstan, which comprises: a base; a winding member, which is rotatably arranged on the base around its axis; a driving member, which is arranged on the base and is drivingly connected to the winding member to drive the winding member to rotate; a passive braking assembly, which comprises a centrifugal pendulum and a reset member, wherein the first end of the centrifugal pendulum is hinged to the winding member, the hinge axis of the centrifugal pendulum is parallel to the axis of the winding member, and the reset member is arranged between the winding member and the centrifugal pendulum to apply a reset force to the second end of the centrifugal pendulum for inward swinging; wherein the passive braking assembly has a braking state and a relaxing state, wherein when the passive braking assembly is in the braking state, the second end of the centrifugal pendulum swings outward and can be engaged with the base, and when the passive braking assembly is in the relaxing state, the second end of the centrifugal pendulum is separated from the base.

[0007] Furthermore, the passive braking assembly also includes: a connecting seat, which is connected to the winding member and rotates coaxially, the first end of the centrifugal pendulum is hinged to the connecting seat, and the reset member is arranged between the connecting seat and the centrifugal pendulum; a braking snap ring, which is arranged on the base and surrounds the outside of the centrifugal pendulum, when the passive braking assembly is in a braking state, the second end of the centrifugal pendulum is engaged with the braking snap ring, and when the passive braking assembly is in a relaxed state, the second end of the centrifugal pendulum is separated from the braking snap ring.

[0008] Furthermore, a brake slot is provided on the inner wall of the brake snap ring. When the passive brake assembly is in a braking state, the second end of the centrifugal rocker arm is engaged with the brake slot. When the passive brake assembly is in a released state, the second end of the centrifugal rocker arm is separated from the brake slot.

[0009] Furthermore, the passive braking assembly includes a plurality of centrifugal pendulum arms and a plurality of brake slots, the plurality of centrifugal pendulum arms are arranged along the circumference of the winding element, the plurality of brake slots are arranged one-to-one with the plurality of centrifugal pendulum arms, the brake slots include an avoidance surface and a clamping surface arranged at an angle, when the passive braking assembly is in a braking state, the side wall of the centrifugal pendulum arm that is away from the axis of the winding element is in contact with the avoidance surface, and the end wall of the second end of the centrifugal pendulum arm is in contact with the clamping surface in the rotation direction of the winding element.

[0010] Furthermore, the reset member includes: a fixed block, which is arranged on the winding member; a connecting column, which is movably inserted into the fixed block along the radial direction of the winding member, and the connecting column is connected to the second end of the centrifugal pendulum rod; a first spring, which is sleeved on the connecting column and is located on the side of the fixed block away from the centrifugal pendulum rod, and the two ends of the first spring are respectively connected to the fixed block and the connecting column.

[0011] Furthermore, the connecting column includes: a column body, which is movably inserted into the fixed block along the radial direction of the winding member; a limiting boss, which is arranged at the end of the column body away from the centrifugal pendulum arm, and the two ends of the first spring are respectively abutted against the fixed block and the limiting boss; a sliding column, which is connected to the connecting column and extends along the axial direction of the winding member, and a sliding groove is arranged on the centrifugal pendulum arm, and the sliding groove extends along the swinging direction of the second end of the centrifugal pendulum arm, and the sliding column is inserted into the sliding groove.

[0012] Furthermore, the winding member includes: a winding post, a driving member drivingly connected to the winding post, a accommodating groove being arranged on the side wall of the winding post; and an elastic support member embedded in the accommodating groove and protruding from the outer side wall of the winding post.

[0013] Furthermore, the elastic support member includes: a support block embedded in the accommodating groove, the surface of the support block facing the winding pole is adapted to the groove wall of the accommodating groove; a second spring is arranged between the support block and the accommodating groove to apply a force to the support block away from the winding pole.

[0014] Furthermore, the base includes a stabilizing seat and a bearing seat, which are respectively arranged at both ends of the winding post, and the driving shaft of the driving member is passed through the stabilizing seat, the winding post and the bearing seat. The driving shaft is rotatable around its axis relative to the stabilizing seat and the bearing seat. When the passive braking assembly is in a braking state, the second end of the centrifugal pendulum arm is clamped with the stabilizing seat, and when the passive braking assembly is in a relaxed state, the second end of the centrifugal pendulum arm is separated from the stabilizing seat.

[0015] Furthermore, the base also includes a wire entry tray, which is located below the winding pole. The two ends of the wire entry tray in the axial direction of the winding pole are respectively connected to the stabilizing seat and the bearing seat. The upper surface of the wire entry tray is a concave surface, and a cable entrance is also provided on the wire entry tray.

[0016] The technical solution of the present invention is applied, and the capstan includes a base, a winding member, a driving member, and a passive brake assembly. The driving member drives the winding member to rotate forward around its axis, so that the winding member winds the cable, which is convenient for the wire release work. Under normal conditions, the reset force applied by the reset member pulls the second end of the centrifugal pendulum inward, so that the second end of the centrifugal pendulum is separated from the base, and the passive brake assembly is in a relaxed state. At this time, the winding member rotates in the opposite direction to perform the wire release work. When the driving member drives the winding member to release the cable, if a sudden cable reeling event occurs, due to the failure of the active braking structure of the capstan, and the cable continues to be released when the cable tension is insufficient, once the reeling friction between the winding member and the cable cannot maintain the state of continuing to reel in the cable, the reeled cable will burst out with a rapid reeling force in a short period of time. At this time, the cable reeling speed is fast, and the winding member rotates in the opposite direction due to the cable reeling force, so that the second end of the centrifugal pendulum is thrown outward under the action of centrifugal force. When the reeling force of the cable or rope exceeds a preset threshold, the second end of the centrifugal pendulum is engaged with the base, thereby limiting the rotation of the winding member relative to the base, and using the passive braking component to brake to limit the rotation of the winding member relative to the base, so that it overcomes the cable reeling force and stops being pulled by the cable reel. Therefore, the passive braking component is mechanically connected and elastically matched, and does not rely on external control signals and complex control systems. When the cable begins to burst out a rapid rewinding force and rewind, the passive braking component quickly and timely switches to the braking state to limit the reversal of the winding component pulled by the rewound cable, while providing timely protection for the driving component and the winding component. It can respond quickly and automatically brake in the event of equipment failure or emergency, reducing the risk of accidents, providing reliable safety protection, avoiding forced interruption of the wire laying operation, avoiding affecting the construction progress and efficiency, and avoiding causing equipment loss of control and causing injuries to operators or surrounding personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It shows a schematic structural diagram of a capstan grinder provided according to an embodiment of the present invention;

[0019] Figure 2 A side view of a capstan provided according to an embodiment of the present invention is shown;

[0020] Figure 3 Shows Figure 2 Sectional view at AA in the middle;

[0021] Figure 4 It shows a schematic structural diagram of a passive brake assembly of a capstan according to an embodiment of the present invention;

[0022] Figure 5 Shows Figure 4 A partial enlarged view of point B in the middle.

[0023] The above drawings include the following reference numerals:

[0024] 10. Base; 11. Stable seat; 12. Bearing seat; 13. Cable entry tray; 131. Concave surface; 132. Cable entry; 14. Support platform; 15. Motor seat;

[0025] 20. winding member; 21. winding column; 211. receiving groove; 22. elastic support member; 221. support block; 222. second spring;

[0026] 30. driving member; 31. driving shaft; 32. driving motor;

[0027] 40. Passive brake assembly; 41. Centrifugal rocker; 411. Slide groove; 42. Reset member; 421. Fixing block; 422. Connecting column; 4221. Column; 4222. Limiting boss; 4223. Slide column; 423. First spring; 43. Connecting seat; 44. Braking retaining ring; 441. Braking retaining groove; 4411. Avoidance surface; 4412. Snap-fit ​​surface. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the related art, the capstan continues to pay out the wire when the active braking structure fails and the cable tension is insufficient. Once the winding friction between the winding element and the cable cannot maintain the state of continuing to reel in the cable, the reeled cable will burst out with a rapid reeling force in a short period of time and pull the winding element to rotate in the opposite direction. In this process, there is a possibility of injury to the surrounding personnel. At the same time, even if the driving mechanism is started in time to reel in the reeled cable, it still takes time to organize the cable.

[0030] like Figures 1 to 5 As shown, an embodiment of the present invention provides a capstan, which includes a base 10, a winding member 20, a driving member 30 and a passive brake assembly 40. The winding member 20 is rotatably arranged on the base 10 around its axis. The driving member 30 is arranged on the base 10. The driving member 30 is drivingly connected to the winding member 20 to drive the winding member 20 to rotate. The passive brake assembly 40 includes a centrifugal pendulum 41 and a reset member 42. The first end of the centrifugal pendulum 41 is hinged to the winding member 20, and the hinge axis of the centrifugal pendulum 41 is parallel to the axis of the winding member 20. The reset member 42 is arranged between the winding member 20 and the centrifugal pendulum 41 to apply a reset force to the second end of the centrifugal pendulum 41 to swing inward, wherein the passive brake assembly 40 has a braking state and a release state. When the passive brake assembly 40 is in the braking state, the second end of the centrifugal pendulum 41 swings outward and can be engaged with the base 10. When the passive brake assembly 40 is in the release state, the second end of the centrifugal pendulum 41 is separated from the base 10.

[0031] The capstan provided by this embodiment is applied, and the capstan includes a base 10, a winding member 20, a driving member 30, and a passive brake assembly 40. The driving member 30 drives the winding member 20 to rotate forwardly around its axis, so that the winding member 20 winds the cable, which is convenient for the wire release work. Under normal conditions, the reset force applied by the reset member 42 pulls the second end of the centrifugal swing rod 41 inward, so that the second end of the centrifugal swing rod 41 is separated from the base 10, and the passive brake assembly 40 is in a relaxed state. At this time, the winding member 20 rotates in the opposite direction to perform the wire release work. When the driving member 30 drives the winding member 20 to release the cable, if a sudden cable reeling event occurs, due to the failure of the active braking structure of the capstan, and the cable continues to be released when the cable tension is insufficient, once the reeling friction between the winding member 20 and the cable cannot maintain the state of continuing to reel in the cable, the reeled cable will burst out a rapid reeling force in a short period of time. At this time, the cable reeling speed is fast, and the winding member 20 is rotated in the opposite direction by the cable reeling force, so that the second end of the centrifugal pendulum 41 is thrown outward under the action of centrifugal force. When the reeling force of the cable or rope exceeds a preset threshold, the second end of the centrifugal pendulum 41 is engaged with the base 10, thereby limiting the rotation of the winding member 20 relative to the base 10, and braking by the passive brake assembly 40 is used to limit the rotation of the winding member 20 relative to the base 10, so that it overcomes the cable reeling force and stops being pulled by the cable reeling. Therefore, the passive braking component 40 is mechanically connected and elastically matched, and does not rely on external control signals and complex control systems. When the cable begins to burst out a rapid rewinding force and rewind, the passive braking component 40 quickly and timely switches to a braking state to limit the rewinding of the winding member 20 by pulling the rewound cable, thereby providing timely protection for the driving member 30 and the winding member 20. At the same time, it can respond quickly and automatically brake in the event of equipment failure or emergency, thereby reducing the risk of accidents, providing reliable safety protection, avoiding forced interruption of the wire laying operation, avoiding affecting the construction progress and efficiency, and avoiding causing equipment loss of control and causing injuries to operators or surrounding personnel.

[0032] In this embodiment, the capstan also includes a control component and an active brake component. Under normal operating conditions, the active brake component can provide more precise braking and a wider braking force adjustment range under the control signal of the control component, and is suitable for operations that require fine control. This embodiment combines the active brake component and the passive brake component 40. The active brake component is responsible for braking control during normal operation, while the passive brake component 40 serves as a backup system for emergency braking, providing double safety protection to ensure the safe and efficient operation of the capstan under various complex conditions.

[0033] It should be noted that, in this embodiment, the inner direction in the inner-outer direction refers to the direction along the radial direction of the winding member 20 pointing to the axis of the winding member 20, and the outer direction in the inner-outer direction refers to the direction along the radial direction of the winding member 20 away from the axis of the winding member 20.

[0034] like Figure 4 As shown, the passive brake assembly 40 also includes a connecting seat 43 and a brake snap ring 44. The connecting seat 43 is connected to the winding member 20 and rotates coaxially. The first end of the centrifugal pendulum 41 is hinged to the connecting seat 43. The reset member 42 is arranged between the connecting seat 43 and the centrifugal pendulum 41. The brake snap ring 44 is arranged on the base 10 and surrounds the outer side of the centrifugal pendulum 41. When the passive brake assembly 40 is in a braking state, the second end of the centrifugal pendulum 41 is engaged with the brake snap ring 44. When the passive brake assembly 40 is in a relaxed state, the second end of the centrifugal pendulum 41 is separated from the brake snap ring 44. During the process of the driving member 30 driving the winding member 20 to release the wire, if a sudden cable rewinding event occurs, the winding member 20 is rotated in the opposite direction by the cable rewinding force, and drives the connecting seat 43 to rotate in the opposite direction, so that the second end of the centrifugal pendulum 41 is thrown outward under the action of the centrifugal force. When the rewinding force of the cable or rope exceeds the preset threshold, the second end of the centrifugal pendulum 41 overcomes the restoring force of the reset member 42 and engages with the brake snap ring 44, limiting the rotation of the connecting seat 43 relative to the brake snap ring 44, so as to limit the rotation of the winding member 20 relative to the base 10. Under normal conditions or when the cable rewinding force disappears, the restoring force applied by the reset member 42 pulls the second end of the centrifugal pendulum 41 inward, so that the second end of the centrifugal pendulum 41 is separated from the brake snap ring 44, and the passive brake assembly 40 is in a relaxed state. At this time, the winding member 20 rotates in the opposite direction to perform the wire releasing work.

[0035] like Figure 4 As shown, the inner wall of the brake snap ring 44 is provided with a brake slot 441. When the passive brake assembly 40 is in a braking state, the second end of the centrifugal swing rod 41 is engaged with the brake slot 441. When the passive brake assembly 40 is in a released state, the second end of the centrifugal swing rod 41 is separated from the brake slot 441. By switching the matching state between the second end of the centrifugal swing rod 41 and the brake slot 441, the passive brake assembly 40 is switched between the braking state and the released state.

[0036] like Figure 4As shown, the passive brake assembly 40 includes a plurality of centrifugal swing rods 41 and a plurality of brake slots 441. The plurality of centrifugal swing rods 41 are arranged along the circumference of the winding member 20. The plurality of brake slots 441 are arranged one-to-one with the plurality of centrifugal swing rods 41. The brake slots 441 include an avoidance surface 4411 and a clamping surface 4412 arranged at an angle. When the passive brake assembly 40 is in a braking state, the side wall of the centrifugal swing rod 41 that is away from the axis of the winding member 20 is in contact with the avoidance surface 4411, and the end wall of the second end of the centrifugal swing rod 41 is in contact with the clamping surface 4412 in the rotation direction of the winding member 20. By adopting the plurality of centrifugal swing rods 41 and the plurality of brake slots 441, when the passive brake assembly 40 is in a braking state, the one-to-one cooperation of the plurality of centrifugal swing rods 41 and the plurality of brake slots 441 can be utilized to improve the braking reliability provided by the passive brake assembly 40. When the second end of the centrifugal pendulum 41 swings outward under the action of centrifugal force, the avoidance surface 4411 avoids the centrifugal pendulum 41. When the side wall of the centrifugal pendulum 41 that is away from the axis of the winding element 20 is in contact with the avoidance surface 4411, if the winding element 20 continues to reverse, the end wall of the second end of the centrifugal pendulum 41 can rotate together with the winding element 20 until the end wall of the second end of the centrifugal pendulum 41 abuts against the clamping surface 4412 in the rotation direction of the winding element 20, so as to limit the rotation of the winding element 20 relative to the base 10.

[0037] Specifically, in this embodiment, when the passive brake assembly 40 is in the braking state, the end wall of the second end of the centrifugal rocker arm 41 abuts against the clamping surface 4412 in the reverse rotation direction of the winding member 20 to limit the reverse rotation of the winding member 20 relative to the base 10.

[0038] like Figure 5 As shown, the reset member 42 includes a fixed block 421, a connecting column 422 and a first spring 423. The fixed block 421 is arranged on the winding member 20. The connecting column 422 is movably arranged on the fixed block 421 along the radial direction of the winding member 20. The connecting column 422 is connected to the second end of the centrifugal pendulum 41. The first spring 423 is sleeved on the connecting column 422 and is located on the side of the fixed block 421 away from the centrifugal pendulum 41. The two ends of the first spring 423 are respectively connected to the fixed block 421 and the connecting column 422. The reset member 42 with the above structure is convenient for assembling the reset member 42. When the second end of the centrifugal pendulum 41 swings, the connecting column 422 moves relative to the fixed block 421 along the radial direction of the winding member 20.

[0039] like Figures 1 to 5As shown, the connecting column 422 includes a column body 4221, a limiting boss 4222 and a sliding column 4223. The column body 4221 is movably arranged in the radial direction of the winding member 20 through the fixed block 421. The limiting boss 4222 is arranged at the end of the column body 4221 that is away from the centrifugal pendulum 41. The two ends of the first spring 423 are respectively abutted against the fixed block 421 and the limiting boss 4222. The sliding column 4223 is connected to the connecting column 422 and extends along the axial direction of the winding member 20. A sliding groove 411 is arranged on the centrifugal pendulum 41. The sliding groove 411 extends along the swinging direction of the second end of the centrifugal pendulum 41. The sliding column 4223 is arranged in the sliding groove 411. The connecting column 422 with the above structure facilitates the installation of the first spring 423, and when the second end of the centrifugal pendulum 41 swings, the sliding column 4223 moves in the sliding groove 411 along the extension direction of the sliding groove 411, thereby improving the connection life of the connecting column 422 and the centrifugal pendulum 41.

[0040] like Figures 1 to 5 As shown, the winding member 20 includes a winding post 21 and an elastic support member 22, the driving member 30 is drivingly connected to the winding post 21, and a receiving groove 211 is provided on the side wall of the winding post 21. The elastic support member 22 is embedded in the receiving groove 211 and protrudes from the outer side wall of the winding post 21. When winding multiple turns of cable on the winding post 21, the elastic support member 22 is used to exert an outward expansion support force on the wound cable, thereby increasing the friction between the wound cable and the winding member 20, and improving the stability of the cable wound on the winding member 20. Even when the cable is rewound, due to the expansion support effect of the elastic support member 22, the winding member 20 quickly stabilizes the wound cable, and can cooperate with the passive braking mechanism to play a braking role in cable rewinding.

[0041] like Figures 1 to 5 As shown, the elastic support member 22 includes a support block 221 and a second spring 222. The support block 221 is embedded in the receiving groove 211. The surface of the support block 221 facing the winding rod 21 is matched with the groove wall of the receiving groove 211. The second spring 222 is arranged between the support block 221 and the receiving groove 211 to apply a force to the support block 221 away from the winding rod 21. With the split arrangement of the above structure, if the elastic support member 22 is worn due to long-term friction with the cable, it can be repaired by replacing the support block 221, and the second spring 222 is used to apply a force to the support block 221 away from the winding rod 21.

[0042] Specifically, in this embodiment, the middle portion of the groove wall of the accommodating groove 211 is concave toward the axis of the winding rod, and the second spring 222 is disposed in the middle portion of the groove wall of the accommodating groove 211 .

[0043] like Figure 3As shown, the base 10 includes a stabilizing seat 11 and a bearing seat 12, which are respectively arranged at the two ends of the winding post 21, and the driving shaft 31 of the driving member 30 is passed through the stabilizing seat 11, the winding post 21 and the bearing seat 12. The driving shaft 31 is rotatable relative to the stabilizing seat 11 and the bearing seat 12 around its axis. When the passive brake assembly 40 is in a braking state, the second end of the centrifugal pendulum 41 is engaged with the stabilizing seat 11, and when the passive brake assembly 40 is in a relaxed state, the second end of the centrifugal pendulum 41 is separated from the stabilizing seat 11. In the base 10 with the above structure, the driving shaft 31 is passed through the stabilizing seat 11, the winding post 21 and the bearing seat 12, and the driving shaft 31 is rotatable relative to the stabilizing seat 11 and the bearing seat 12 around its axis, thereby improving the rotation stability of the winding post 21.

[0044] In this embodiment, the brake snap ring 44 is embedded in the stabilizing seat 11 and connected to the stabilizing seat 11, the connecting seat 43 is rotatably embedded in the stabilizing seat 11, the bearing seat 12 includes a seat body and a bearing arranged on the seat body, the outer ring of the bearing is connected to the seat body, and the inner ring of the bearing is sleeved on the drive shaft 31 and connected to the drive shaft 31.

[0045] like Figures 1 to 3 As shown, the base 10 also includes a wire entry tray 13, which is located below the winding column 21. The two ends of the wire entry tray 13 in the axial direction of the winding column 21 are respectively connected to the stabilizing seat 11 and the bearing seat 12. The upper surface of the wire entry tray 13 is a concave curved surface 131, and a cable inlet 132 is also provided through the wire entry tray 13. With the wire entry tray 13 of the above structure, the concave curved surface 131 is arranged around the outside of the winding column 21, and the cable is passed through the cable inlet 132, which facilitates the stabilization of the cable during the work of winding or unwinding the cable.

[0046] like Figures 1 to 3 As shown, the base 10 further includes a support platform 14, which is disposed at the bottom of the incoming wire tray 13, and the two ends of the support platform 14 in the axial direction of the winding member 20 are respectively connected to the stabilizing seat 11 and the bearing seat 12.

[0047] like Figures 1 to 3 As shown, the driving member 30 includes a driving motor 32 , and the base 10 also includes a motor seat 15 arranged at the bottom of the driving motor 32 , and the motor shaft of the driving motor 32 is drivingly connected to the driving shaft 31 .

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0050] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A capstan grinder, characterized in that: The capstan grinder comprises: Base (10); A wire winding member (20) is rotatably arranged on the base (10) around its axis; A driving member (30) is disposed on the base (10), and the driving member (30) is drivingly connected to the winding member (20) to drive the winding member (20) to rotate; A passive brake assembly (40) comprises a centrifugal swing rod (41) and a reset member (42), wherein a first end of the centrifugal swing rod (41) is hinged to the winding member (20), an hinge axis of the centrifugal swing rod (41) is parallel to an axis of the winding member (20), and the reset member (42) is arranged between the winding member (20) and the centrifugal swing rod (41) to apply a reset force to the second end of the centrifugal swing rod (41) to swing inwards; The passive braking assembly (40) has a braking state and a releasing state. When the passive braking assembly (40) is in the braking state, the second end of the centrifugal swing arm (41) swings outward and can be engaged with the base (10). When the passive braking assembly (40) is in the releasing state, the second end of the centrifugal swing arm (41) is separated from the base (10).

2. The capstan grinder according to claim 1, characterized in that: The passive brake assembly (40) further comprises: A connecting seat (43) is connected to the winding member (20) and rotates coaxially, a first end of the centrifugal swing rod (41) is hinged to the connecting seat (43), and the reset member (42) is arranged between the connecting seat (43) and the centrifugal swing rod (41); A brake snap ring (44) is arranged on the base (10) and surrounds the outer side of the centrifugal pendulum (41); when the passive brake assembly (40) is in the braking state, the second end of the centrifugal pendulum (41) is engaged with the brake snap ring (44); when the passive brake assembly (40) is in the relaxed state, the second end of the centrifugal pendulum (41) is separated from the brake snap ring (44).

3. The capstan grinder according to claim 2, characterized in that: The inner wall of the brake snap ring (44) is provided with a brake slot (441); when the passive brake assembly (40) is in the braking state, the second end of the centrifugal swing arm (41) is engaged with the brake slot (441); when the passive brake assembly (40) is in the relaxed state, the second end of the centrifugal swing arm (41) is separated from the brake slot (441).

4. The capstan grinder according to claim 3, characterized in that: The passive braking assembly (40) comprises a plurality of centrifugal swing arms (41) and a plurality of braking slots (441). The plurality of centrifugal swing arms (41) are arranged along the circumference of the winding member (20). The plurality of braking slots (441) are arranged in a one-to-one correspondence with the plurality of centrifugal swing arms (41). The braking slots (441) comprise an avoidance surface (4411) and a clamping surface (4412) arranged at an angle. When the passive braking assembly (40) is in the braking state, the side wall of the centrifugal swing arm (41) that is away from the axis of the winding member (20) is in contact with the avoidance surface (4411), and the end wall of the second end of the centrifugal swing arm (41) is in contact with the clamping surface (4412) in the rotation direction of the winding member (20).

5. The capstan grinder according to claim 1, characterized in that: The reset member (42) comprises: A fixing block (421) is arranged on the wire winding member (20); A connecting column (422) is movably disposed on the fixing block (421) along the radial direction of the winding member (20), and the connecting column (422) is connected to the second end of the centrifugal swing rod (41); The first spring (423) is sleeved on the connecting column (422) and is located on a side of the fixing block (421) away from the centrifugal swing rod (41), and two ends of the first spring (423) are respectively connected to the fixing block (421) and the connecting column (422).

6. The capstan grinder according to claim 5, characterized in that: The connecting column (422) comprises: A column (4221) is movably disposed on the fixed block (421) along the radial direction of the winding member (20); A limiting boss (4222) is arranged at an end of the column (4221) away from the centrifugal swing rod (41), and two ends of the first spring (423) are respectively in contact with the fixing block (421) and the limiting boss (4222); The slide column (4223) is connected to the connecting column (422) and extends along the axial direction of the winding member (20). The centrifugal swing arm (41) is provided with a slide groove (411), and the slide groove (411) extends along the swinging direction of the second end of the centrifugal swing arm (41). The slide column (4223) is inserted into the slide groove (411).

7. The capstan according to claim 1, characterized in that: The winding member (20) comprises: A winding post (21), the driving member (30) being drivingly connected to the winding post (21), and a receiving groove (211) being provided on a side wall of the winding post (21); An elastic support member (22) is embedded in the receiving groove (211) and protrudes from the outer side wall of the winding rod (21).

8. The capstan according to claim 7, characterized in that: The elastic support member (22) comprises: A support block (221) is embedded in the receiving groove (211), and a surface of the support block (221) facing the winding rod (21) is matched with a groove wall of the receiving groove (211); A second spring (222) is arranged between the support block (221) and the receiving groove (211) to apply a force to the support block (221) to move away from the winding rod (21).

9. The capstan according to claim 7, characterized in that: The base (10) comprises a stabilizing seat (11) and a bearing seat (12), wherein the stabilizing seat (11) and the bearing seat (12) are respectively arranged at two ends of the winding post (21), and a driving shaft (31) of the driving member (30) is passed through the stabilizing seat (11), the winding post (21) and the bearing seat (12), and the driving shaft (31) is rotatable around its axis relative to the stabilizing seat (11) and the bearing seat (12). When the passive braking assembly (40) is in the braking state, the second end of the centrifugal pendulum (41) is engaged with the stabilizing seat (11), and when the passive braking assembly (40) is in the relaxing state, the second end of the centrifugal pendulum (41) is separated from the stabilizing seat (11).

10. The capstan according to claim 9, characterized in that The base (10) further comprises a wire entry tray (13), the wire entry tray (13) being located below the wire winding post (21), the wire entry tray (13) being connected to the stabilizing seat (11) and the bearing seat (12) at two axial ends of the wire winding post (21), respectively, the upper surface of the wire entry tray (13) being a concave curved surface (131), and a cable inlet (132) being provided through the wire entry tray (13).

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