Stage winch

Abstract

The application discloses a stage winch and relates to the application field of winches. The winch comprises a mounting frame, a winding drum is arranged in the mounting frame, the winding drum is connected with a first driving device through a belt pulley assembly, the winding drum is hollow, a steel wire rope is wound around the outside of the winding drum, a plurality of strip-shaped grooves are formed in the outer wall of the winding drum, a threaded rod is rotatably connected to the central position in the winding drum, the two ends of the threaded rod are fixedly connected with the mounting frame, a reset mechanism is movably arranged in the winding drum, the reset mechanism comprises a reset rod, and the reset rod penetrates through the inside of the strip-shaped groove. The reset mechanism is arranged to rotate on the outside of the threaded rod and synchronously move, so that the winding and unwinding amount of the steel wire rope is matched with the movement of the reset mechanism, and then the steel wire rope is horizontally extruded by a group of reset rods every time the steel wire rope is wound for a section, so that the winding of the steel wire rope is reset even if a gap appears, and the situation that the winding of the steel wire rope is too loose is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of winch, in particular to a stage winch. BACKGROUND

[0002] The winch (also called the winch) is a light and small hoisting equipment that realizes the vertical lifting, horizontal / inclined traction of heavy objects by winding the steel wire rope / chain on the drum, and the core features are simple structure, strong bearing and convenient operation. It is a core traction / lifting tool in the industrial and construction fields.

[0003] The winch is also widely used in the stage, including power unit, transmission system, drum assembly, brake system and frame and auxiliary parts. The power source is started, and the drum is rotated after being reduced in speed and increased in torque by the speed reducer. The drum winds / releases the steel wire rope while rotating, changes the direction of the force through the pulley block, uses the traction of the steel wire rope, realizes the vertical lifting, horizontal dragging or inclined traction of heavy objects, and the brake system locks the drum at any time. The heavy object can be stably suspended and the work can be stopped.

[0004] The winch is also divided into single-layer winding drum suitable for conventional scenes and multi-layer winding drum suitable for long-distance scenes in actual application. The steel wire rope of the multi-layer winding winch is easily worn out, so it is mostly used in special situations. For the single-layer winding drum, although the reciprocating guide mechanism assists the winding of the steel wire rope, the adjacent steel wire ropes are easily over-tightened or over-loose after winding into a coil. The over-loose steel wire rope leaves a winding gap, which finally leads to incomplete winding. The over-tightened steel wire rope causes the adjacent steel wire ropes to rub against each other, increasing the wear of the steel wire rope. In addition, the uneven winding and unwinding of the steel wire rope easily causes the equipment to shake. Therefore, most of the drums of the winch are provided with wire grooves (recesses) on the surface to allow the steel wire rope to be wound according to the wire grooves during winding. Although this can make the steel wire rope wind and unwind evenly, and keep a gap between adjacent steel wire ropes to reduce the wear of the steel wire rope, the drum with wire grooves also has certain disadvantages. Once the equipment is disturbed by external factors, such as abnormal vibration, the steel wire rope in the winding position will be separated from the established wire groove, which will cause the subsequent winding of the steel wire rope to be completely incompatible with the wire groove, and the equipment needs to be stopped and rewound. In addition, the drum with wire grooves has a larger volume than the drum without wire grooves, because there is a certain gap between adjacent wire grooves. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a stage winch to solve the technical problems mentioned in the background.

[0006] To achieve the above object, the present application provides the following technical scheme: A stage winch, comprising a mounting frame, a winding drum is arranged in the mounting frame, the winding drum is connected with a first driving device through a belt pulley assembly, the winding drum is hollow inside, a steel wire rope is wound outside the winding drum, a plurality of strip grooves are formed in the outer wall of the winding drum, a threaded rod is rotatably connected to the center of the winding drum, the two ends of the threaded rod are fixedly connected to the mounting frame, a reset mechanism is movably arranged in the winding drum, the reset mechanism comprises a base, the base is threadedly connected to the threaded rod, a guide rod is arranged on the top of the base, a first spring is sleeved outside the guide rod, and a reset rod is movably arranged outside the guide rod and penetrates the strip groove.

[0007] By adopting the above technical scheme, the reset mechanism arranged in the winding drum is used to horizontally push and reset the steel wire rope being wound, so as to reduce the over-loose condition of the steel wire rope. The winding drum in the present application is a winding drum without a wire groove, and it is not easy to make mistakes during winding and unwinding. The reset mechanism mainly comprises a plurality of reset rods movably arranged and pushed by springs. The winding drum is rotatably connected with a threaded rod, the threaded rod is fixedly connected to the equipment mounting frame, the reset mechanism in the winding drum is threadedly connected to the threaded rod, and a plurality of reset rods of the reset mechanism penetrate and fit into the strip grooves on the surface of the winding drum. When the winding drum rotates to wind the steel wire rope, the reset mechanism rotates and moves synchronously outside the threaded rod. The amount of winding and unwinding of the steel wire rope matches the movement of the reset mechanism. Therefore, the steel wire rope is horizontally pressed by a group of reset rods every time it is wound, so that the steel wire rope is pushed and reset even if a gap occurs during winding, and the over-loose condition of the steel wire rope is reduced.

[0008] The present application further provides that a plurality of guide rods are arranged on the top of the base, end caps are arranged on the top of the plurality of guide rods, first springs are sleeved outside the plurality of guide rods, and reset rods are movably arranged on the plurality of guide rods and penetrate the plurality of strip grooves.

[0009] Preferably, a plurality of reset rods are arranged, and the plurality of reset rods are pushed and reset by independent first springs, so that the plurality of reset rods can be individually pressed and collectively horizontally reset to push the same circle of steel wire rope.

[0010] The present application further provides that limit blocks are arranged on the side surfaces of the plurality of reset rods, and a plurality of limit grooves matched with the limit blocks are formed in the outer surface of the base.

[0011] Preferably, the limit blocks and the limit grooves are arranged to improve the stability of the installation of the reset rods and the base.

[0012] The present application further provides that a first guide surface is arranged on the side surface of the reset rod, and a second guide surface is arranged on the top of the reset rod.

[0013] As preferred, by setting the first guide surface and the second guide surface, the extrusion winding of the steel wire rope is facilitated, and the abrasion of the steel wire rope is reduced.

[0014] The mounting frame is further provided with a guide column on the side surface, and a bidirectional screw rod is rotationally connected to the side surface of the mounting frame, the bidirectional screw rod is connected to a second driving device, an adjusting mechanism is movably mounted outside the guide column, and the adjusting mechanism is threadedly connected to the bidirectional screw rod.

[0015] As preferred, by setting the bidirectional screw rod to drive the adjusting mechanism, the adjusting mechanism can be automatically controlled to realize reciprocating movement and guide the steel wire rope to be wound on the winding drum.

[0016] The adjusting mechanism comprises a fixed frame, and two sets of limiting guide wheels are arranged in the fixed frame, one set of the limiting guide wheels is composed of two sets of rotationally connected guide wheels, and the two sets of limiting guide wheels are vertically distributed.

[0017] As preferred, by setting the two sets of vertically distributed limiting guide wheels, the up-and-down and left-and-right movement of the steel wire rope can be limited for the winding drum, but the left-and-right pulling of the steel wire rope by the worker is not affected.

[0018] The fixed frame is further provided with a square rod on one side, a sleeve is movably mounted outside the square rod, second springs are arranged at both ends of the sleeve outside the square rod, a guide wheel is rotationally connected outside the sleeve, and the guide wheel is matched with the steel wire rope.

[0019] As preferred, by setting the floating guide wheel to guide the steel wire rope, the guide wheel can adapt to the vibration of the steel wire rope.

[0020] The square rod is arranged at the middle side of the fixed frame, so that the steel wire rope guided by the guide wheel can be wound on the outside of the winding drum in an inclined state.

[0021] As preferred, by setting the eccentric position of the guide wheel, the steel wire rope can be wound on the winding drum at an inclined angle, and the abrasion between the steel wire rope and the adjacent steel wire rope is reduced.

[0022] In summary, the present application mainly has the following advantages:

[0023] The application reduces the occurrence of over-loose wire rope winding by setting a reset mechanism inside the winding drum to horizontally push and reset the wire rope being wound, the winding drum in the application is a winding drum without a wire slot, and winding and unwinding is not prone to errors, the reset mechanism mainly consists of multiple groups of reset rods which are movably installed and pushed by springs, a threaded rod is rotationally connected in the winding drum, the threaded rod is fixedly connected with a device mounting frame, the reset mechanism in the winding drum is threadedly connected with the threaded rod, and multiple reset rods of the reset mechanism penetrate and fit into the strip-shaped grooves on the surface of the winding drum, so that the winding drum drives the reset mechanism to rotate when winding the wire rope, the reset mechanism rotates and moves synchronously outside the threaded rod, so that the winding and unwinding amount of the wire rope matches the movement of the reset mechanism, and thus the wire rope is horizontally pressed by a group of reset rods every time it is wound, so that the wire rope is pushed and reset even if a gap occurs during winding, reducing the occurrence of over-loose wire rope winding.

[0024] The application can reduce the wear of the wire rope during cross winding by setting an adjusting mechanism to make the wire rope wind at an inclined angle, in an ideal state, the wire rope maintains tangency with the wire rope that has been wound on the winding drum during winding, and is least likely to cause mutual wear of the wire ropes, but in actual application, the guiding mechanism for guiding the movement of the wire rope may have a slight deviation, so that the winding angle between the wire rope about to be wound and the wire rope on the winding drum occurs, which may be a cross angle, causing mutual wear of the wire ropes (i.e. over-tight winding), or a separation angle, causing a gap in the winding of the wire rope (i.e. over-loose winding), although over-loose winding can reduce the wear of the wire rope, it can cause incomplete winding of the wire rope at the end, in the application, the wire rope is wound at an inclined angle by setting an inclined guide wheel, which can reduce the wear of the wire rope, and then the over-loose wire rope is reset by the reset mechanism, so that the wear of the wire rope is reduced, and over-loose winding of the wire rope is also reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the application;

[0026] Figure 2 It is a schematic diagram of the winding drum structure of the application;

[0027] Figure 3 It is a schematic diagram of the distribution of the winding drum and the reset mechanism of the application;

[0028] Figure 4 It is a schematic diagram of the structure of the reset mechanism of the application;

[0029] Figure 5 It is an installation demonstration diagram of the reset mechanism of the application;

[0030] Figure 6 It is a schematic diagram of the structure of the adjusting mechanism of the application;

[0031] Figure 7 Fig. 1 is a perspective view of the stage winch of the present application;

[0032] Figure 8 Fig. 2 is a sectional view of the stage winch of the present application; Figure 7 Fig. 3 is an enlarged view of A in Fig. 2.

[0033] Explanation of reference numerals:

[0034] 1, mounting frame; 2, winding drum; 3, strip-shaped slot; 4, threaded rod; 5, reset mechanism; 501, base; 502, guide rod; 503, first spring; 504, reset rod; 505, first guide surface; 506, second guide surface; 507, limiting block; 508, limiting slot; 509, end cover; 6, pulley assembly; 7, first driving device; 8, steel wire rope; 9, guide post; 10, adjusting mechanism; 1001, fixing frame; 1002, limiting guide wheel; 1003, square rod; 1004, sleeve; 1005, second spring; 1006, guide wheel; 11, bidirectional screw rod; 12, second driving device. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0036] The embodiments of the present application will be described below according to the overall structure of the present application.

[0037] Please refer to Figures 1-8 , a stage winch, comprising a mounting frame 1, the inside of the mounting frame 1 is provided with a winding drum 2, the winding drum 2 is connected with a first driving device 7 through a pulley assembly 6, the first driving device 7 comprises a driving motor and a speed reducer, the winding drum 2 is rotated after the driving motor is driven through the speed reducer, the inside of the winding drum 2 is hollow, the outside of the winding drum 2 is wound with a steel wire rope 8, one end of the steel wire rope 8 is fixedly connected with the outer wall of the winding drum 2, and a plurality of strip-shaped slots 3 are formed in the outer wall of the winding drum 2, a threaded rod 4 is rotatably connected with the inside of the winding drum 2 at a central position, the two ends of the threaded rod 4 are fixedly connected with the mounting frame 1, a reset mechanism 5 is movably installed in the inside of the winding drum 2, the reset mechanism 5 comprises a base 501, the base 501 is threadedly connected with the threaded rod 4, the reset mechanism 5 is moved along the threaded rod 4 when it rotates, a guide rod 502 is arranged on the top of the base 501, a first spring 503 is sleeved on the outside of the guide rod 502, the first spring 503 can push a reset rod 504 to move, the reset rod 504 is movably installed on the outside of the guide rod 502, and the reset rod 504 penetrates through the inside of the strip-shaped slot 3.

[0038] In the above embodiment, please refer to Figure 4 andFigure 5 The top of the base 501 is provided with a plurality of sets of guide rods 502, the top of the plurality of sets of guide rods 502 is provided with an end cover 509, the outside of the plurality of sets of guide rods 502 is sleeved with a first spring 503, and the plurality of sets of guide rods 502 are movably installed with a reset rod 504, and the plurality of sets of reset rods 504 correspond to the plurality of sets of strip-shaped grooves 3 respectively. By setting the plurality of sets of reset rods 504, and the plurality of sets of reset rods 504 are pushed and reset by independent first springs 503, so that the plurality of sets of reset rods 504 can be individually extruded and collectively horizontally reset to push the same circle of steel wire ropes 8.

[0039] In the above embodiment, specifically refer to Figure 5 The side surface of the plurality of sets of reset rods 504 is provided with a limiting block 507, and the outside of the base 501 is provided with a plurality of limiting grooves 508 matched with the limiting block 507. By setting the limiting block 507 and the limiting groove 508, the stability of the installation of the reset rod 504 and the base 501 can be improved.

[0040] In the above embodiment, specifically refer to Figure 4 The side surface of the reset rod 504 is provided with a first guide surface 505, and the top of the reset rod 504 is provided with a second guide surface 506. By setting the first guide surface 505 and the second guide surface 506, it is beneficial to the extrusion and winding of the steel wire rope 8, and the abrasion of the steel wire rope 8 is reduced.

[0041] In the above embodiment, specifically refer to Figure 1 And Figure 7 The side surface of the mounting frame 1 is provided with a guide column 9, and the side surface of the mounting frame 1 is rotatably connected with a bidirectional screw rod 11, and the bidirectional screw rod 11 is connected with a second driving device 12. The outside of the guide column 9 is movably installed with an adjusting mechanism 10, and the adjusting mechanism 10 and the bidirectional screw rod 11 are threadedly connected. By setting the bidirectional screw rod 11 to drive the adjusting mechanism 10, the adjusting mechanism 10 can automatically control reciprocating movement to guide the steel wire rope 8 to be wound on the winding drum 2.

[0042] In the above embodiment, specifically refer to Figure 6 The adjusting mechanism 10 comprises a fixed frame 1001, the inside of the fixed frame 1001 is provided with two sets of limiting guide wheels 1002, one set of limiting guide wheels 1002 is composed of two sets of rotatably connected guide wheels, and the two sets of limiting guide wheels 1002 are vertically distributed. By setting the two sets of vertically distributed limiting guide wheels 1002, the steel wire rope 8 can be limited to move up and down and left and right with respect to the winding drum 2, but the left and right pulling of the steel wire rope 8 by the worker is not affected.

[0043] In the above embodiment, specifically refer to Figure 6The side of the fixed frame 1001 is provided with a square rod 1003, the outer part of the square rod 1003 is movably provided with a sleeve 1004, the outer part of the square rod 1003 is provided with a second spring 1005 at both ends of the sleeve 1004, the outer part of the sleeve 1004 is rotatably connected with a guide wheel 1006, the guide wheel 1006 is matched with the steel wire rope 8, the guide wheel 1006 can guide the steel wire rope 8 by being set to be floating, so that the guide wheel 1006 can adapt to the vibration of the steel wire rope 8.

[0044] In the above embodiment, please refer to Figure 6 and Figure 8 , the square rod 1003 is arranged at the middle side of the fixed frame 1001, so that the steel wire rope 8 guided by the guide wheel 1006 can be wound on the outer part of the winding drum 2 in an inclined state, the position of the guide wheel 1006 is eccentrically arranged, so that the steel wire rope 8 can be wound on the winding drum 2 at an inclined angle, and the abrasion between the steel wire rope 8 and the adjacent steel wire rope 8 is reduced.

[0045] When the steel wire rope 8 needs to be wound, the first driving device 7 drives the winding drum 2 to rotate through the belt pulley assembly 6, the winding drum 2 drives the reset mechanism 5 to rotate by using the plurality of groups of strip-shaped grooves 3 on the surface of the winding drum 2 when rotating, the base 501 of the reset mechanism 5 is threadedly connected with the threaded rod 4, and then the reset mechanism 5 as a whole moves along the threaded rod 4 and the strip-shaped groove 3, that is, the winding amount of the steel wire rope 8 on the outer part of the winding drum 2 increases, and the reset mechanism 5 moves at the same time.

[0046] During the winding process of the steel wire rope 8, the steel wire rope 8 is guided to be wound in an inclined state by the adjusting mechanism 10, for the winding contact point of the steel wire rope 8 and the winding drum 2, the steel wire rope 8 is inclined and pressed, slides down along the second guide surface 506 of one of the reset rods 504 of the reset mechanism 5, and is bent through the first guide surface 505, the strong tension of the steel wire rope 8 pushes the reset rod 504 to move along the guide rod 502, and compresses the first spring 503, with the continuous winding of the steel wire rope 8, the reset rod 504 pushes the steel wire rope 8 to be in close contact with the adjacent steel wire rope 8 under the reset action of the first spring 503, the occurrence of the winding gap is reduced, and the steel wire rope 8 is wound in an inclined angle and presses the reset rod 504 of the reset mechanism 5, so that the steel wire rope 8 does not form an intersecting angle with the steel wire rope 8 wound on the winding drum 2, and the steel wire rope 8 is not easy to be abraded, the first driving device 7 continuously drives the winding drum 2 to rotate to wind the steel wire rope 8, and the reset mechanism 5 moves synchronously, and the plurality of reset rods 504 are used to horizontally reset the wound steel wire rope 8.

[0047] At the same time, the second driving device 12 drives the bidirectional screw rod 11 to rotate, thereby driving the adjusting mechanism 10 to move along the guide column 9, and the two groups of vertically distributed limiting guide wheels 1002 of the adjusting mechanism 10 guide the steel wire rope 8 until the steel wire rope 8 is completely wound up. Similarly, when the steel wire rope 8 is unwound, the steps are reversed.

[0048] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A stage winch comprising a mounting frame (1), characterised in that: The inside of the mounting frame (1) is provided with a winding drum (2), the winding drum (2) is connected with the first driving device (7) through the setting of the pulley assembly (6), the inside of the winding drum (2) is hollow, the outside of the winding drum (2) is wound with the steel wire rope (8), and a plurality of strip-shaped grooves (3) are formed in the outer wall of the winding drum (2), a threaded rod (4) is rotatably connected to the inside of the winding drum (2), the two ends of the threaded rod (4) are fixedly connected with the mounting frame (1), and a reset mechanism (5) is movably mounted in the inside of the winding drum (2), the reset mechanism (5) comprises a base (501), the base (501) is threadedly connected with the threaded rod (4), a guide rod (502) is arranged on the top of the base (501), a first spring (503) is sleeved on the outside of the guide rod (502), and a reset rod (504) is movably mounted on the outside of the guide rod (502), the reset rod (504) penetrates the inside of the strip-shaped groove (3), a plurality of guide rods (502) are arranged on the top of the base (501), end covers (509) are arranged on the top of the plurality of guide rods (502), the first spring (503) is sleeved on the outside of the plurality of guide rods (502), and the reset rod (504) is movably mounted on the plurality of guide rods (502), the plurality of reset rods (504) respectively penetrate the plurality of strip-shaped grooves (3), limit blocks (507) are arranged on the sides of the plurality of reset rods (504), a plurality of limit grooves (508) matched with the limit blocks (507) are formed in the outside of the base (501), a first guide surface (505) is arranged on the side of the reset rod (504), and a second guide surface (506) is arranged on the top of the reset rod (504), a guide column (9) is arranged on the side of the mounting frame (1), a bidirectional screw rod (11) is rotatably connected to the side of the mounting frame (1), the second driving device (12) is connected with the bidirectional screw rod (11), and an adjusting mechanism (10) is movably mounted on the outside of the guide column (9).

2. The stage winch according to claim 1, characterized in that: The adjusting mechanism (10) comprises a fixed frame (1001), two groups of limit guide wheels (1002) are arranged in the inside of the fixed frame (1001), one group of limit guide wheels (1002) is composed of two groups of rotatably connected guide wheels, and the two groups of limit guide wheels (1002) are vertically distributed.

3. A stage winch according to claim 2, wherein: A square rod (1003) is arranged on one side of the fixed frame (1001), a sleeve (1004) is movably mounted on the outside of the square rod (1003), second springs (1005) are sleeved on the two ends of the sleeve (1004) outside the square rod (1003), a guide wheel (1006) is rotatably connected to the outside of the sleeve (1004), and the guide wheel (1006) is matched with the steel wire rope (8).

4. A stage winch according to claim 3, wherein: The square rod (1003) is arranged on the middle side of the fixed frame (1001), so that the steel wire rope (8) guided by the guide wheel (1006) can be wound on the outside of the winding drum (2) in an inclined state.

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