CN218024996U - Small-size loop wheel machine - Google Patents

Abstract

The application relates to a small hoist, which includes a support platform, a column is arranged on the support platform, a horizontal beam is arranged on the column, a winding frame is arranged on the support platform, and a winding roller is rotatably connected to the winding frame. The rewinding roller is wound with a steel wire rope, and the end of the crossbeam away from the column is rotatably connected with a fixed pulley; the crossbeam is provided with a protection assembly, which includes a vertically arranged telescopic rod, and the lower end of the telescopic rod is rotatably connected with a rotating roller, which can be connected with the The wire ropes are in contact with each other, and the outer peripheral surface of the rotating roller is provided with a plurality of protrusions in an array. The protrusions can limit the relative movement between the steel wire rope and the rotating roller. The protrusions or wire ropes abut against each other. The application has the effect of reducing the probability of personnel injury after the steel wire rope breaks.

Description

a small hoist

technical field

The present application relates to the field of construction engineering, in particular to a small hoist.

Background technique

At present, during building construction, tower cranes are mostly used for loading and unloading materials, but in small spaces, tower cranes can be used flexibly. When the space is small, more manpower is used, which increases labor costs and lowers efficiency. Use a small hoist.

With regard to the related technologies mentioned above, the inventor believes that when the hoist is performing hoisting operations, the wire rope of the hoist breaks and easily causes personal injury.

Utility model content

In order to reduce the probability of personal injury after the wire rope breaks, the application provides a small hoist.

A small hoist provided by the application adopts the following technical scheme:

A small hoist, comprising a support platform, a column is arranged on the support platform, a horizontal beam is arranged on the column, a winding frame is arranged on the support platform, a winding roller is connected to the winding frame in rotation, and a winding roller is mounted on the winding roller There is a steel wire rope around it, and the end of the beam away from the column is rotatably connected to a fixed pulley; the beam is provided with a protection component, which includes a vertically arranged telescopic rod, and the lower end of the telescopic rod is rotatably connected to a rotating roller, which can abut against the wire rope , the outer peripheral surface array of the rotating roller is provided with a plurality of protrusions, the protrusions can limit the relative movement between the steel wire rope and the rotating roller, the position of the beam corresponding to the rotating roller is fixed with a stop stare, the stop stare can be connected with the protrusions or the steel wire rope Butt against each other.

By adopting the above technical scheme, one end of the steel wire rope is fixedly connected to the material, the steel wire rope and the fixed pulley are in contact with each other, the steering of the steel wire rope is realized through the fixed pulley, and then the friction between the rotating roller and the steel wire rope is increased through the protrusion on the rotating roller. When the wire rope is broken, the telescopic rod will shrink, and the wire rope will move upward through the rotating roller, so that the protrusions on the wire rope and the rotating roller will contact with the stop corrugated, so that the relative position of the wire rope will not change, and the tension of the wire rope passing through the rotating roller will be reduced. Decrease speed and reduce the chance of injury.

Optionally, the telescopic rod includes a sliding sleeve and an extension rod. The extension rod can be slidably connected to the sliding sleeve along the length direction of the extension rod. A spring member is arranged in the sliding sleeve, and one end of the spring member is fixed to the sliding sleeve. Then, the other end of the spring part is fixedly connected with the extension rod, and the spring part has an active force that pulls the extension rod to move towards the direction of the sliding sleeve, and the elasticity of the spring part is smaller than the lifting weight on the wire rope.

By adopting the above technical scheme, the spring member pulls the extension rod to slide into the sliding sleeve, and at the same time drives the rotating roller and the steel wire rope to move upwards, and the rotating roller drives the steel wire rope to move to the uppermost end, and the steel wire rope and the protrusion abut against the stopper.

Optionally, a driving cylinder is arranged on the supporting platform, and a lifting plate is fixedly connected to the driving cylinder, and a winding frame is arranged on the lifting plate, and a winding roller wound with a steel wire rope is rotatably connected to the winding frame.

By adopting the above technical scheme, when the weight of the material is too large and a large force is applied to the wire rope, the driving cylinder drives the lifting plate to move in the vertical direction to adjust the angle of the wire rope passing through the two ends of the fixed pulley.

Optionally, a coaxially rotating ratchet is fixedly connected to the winding roller, and a ratchet is provided at a position corresponding to the ratchet on the winding frame, and the ratchet can abut against the ratchet.

Optionally, the winding frame is provided with a torsion spring corresponding to the rotation position of the ratchet, one end of the torsion spring is fixedly connected to the ratchet, and the other end of the torsion spring is fixedly connected to the winding frame.

By adopting the above technical solution, when the pawl and the ratchet are engaged with each other, the torsion spring can drive the pawl to continuously abut against the ratchet, limiting the reverse rotation of the winding roller.

Optionally, grooves are formed on the fixed pulley along the outer peripheral surface of the fixed pulley.

By adopting the above technical scheme, the steel wire rope is arranged in the fixed pulley through the groove, and the relative position of the steel wire rope is limited by the fixed pulley.

Optionally, a reinforcing rod is arranged between the beam and the column, the reinforcing rod is arranged obliquely, the vertically lower end of the reinforcing rod is affixed to the column, and the vertically higher end of the reinforcing rod is affixed to the crossbeam.

By adopting the above technical solution, the relative force between the beam and the column is increased through the reinforcing rod, so as to prevent the fracture between the beam and the column.

In summary, the present application includes at least one of the following beneficial technical effects:

1. One end of the wire rope is fixed to the material, the wire rope and the fixed pulley are in contact with each other, the steering of the wire rope is realized through the fixed pulley, and then the friction between the rotating roller and the wire rope is increased through the protrusion on the rotating roller. When the wire rope breaks , the telescopic rod shrinks, and the rotating roller drives the steel wire rope to move upward, so that the protrusions on the steel wire rope and the rotating roller contact with the stop corrugated, so that the relative position of the steel wire rope does not change, and the descending speed of the steel wire rope passing through the rotating roller is reduced. chance of injury;

2. The spring pulls the extension rod to slide into the sliding sleeve, and at the same time drives the rotating roller and the steel wire rope to move upwards, and the rotating roller drives the steel wire rope to move to the uppermost end, and the steel wire rope and the protrusion are in contact with the stopper;

3. When the weight of the material is too large and a large force is applied to the wire rope, the driving cylinder drives the lifting plate to move in the vertical direction, and adjusts the angle of the wire rope passing through the two ends of the fixed pulley.

Description of drawings

Fig. 1 is an overall schematic diagram of a small hoist in this embodiment.

Fig. 2 is a partial schematic diagram of a small-sized hoist protruding from the fixed pulley in this embodiment.

Fig. 3 is an exploded schematic diagram of a protrusion protection component of a small hoist in this embodiment.

Figure 4 is a partial schematic diagram of a small hoist protruding from the winding frame in this embodiment

Explanation of reference numerals: 1, supporting platform; 11, column; 12, beam; 13, reinforcing rod; 14, fixed pulley; 141, groove; 2, protection component; 21, telescopic rod; 22, sliding sleeve; 23 , extension rod; 24, spring piece; 25, rotating roller; 26, protrusion; 27, stop and stop corrugated; 3, driving cylinder; 31, lifting plate; 32, winding frame; 33, winding roller; 34, drive Motor; 35, wire rope; 36, ratchet; 37, ratchet; 38, torsion spring.

detailed description

The present application will be described in further detail below in conjunction with accompanying drawings 1-4.

The embodiment of the present application discloses a small hoist.

Referring to Fig. 1 and Fig. 2, a small hoist includes a support platform 1, on which a vertical column 11 is affixed, the upper end of the column 11 is affixed with a horizontal beam 12, and the beam 12 is close to the column 11 A reinforcing rod 13 is arranged between one end of the rod and the column 11, and the reinforcing rod 13 is arranged obliquely. The end of the beam 12 away from the column 11 is fixedly connected with a fixed pulley 14 arranged horizontally on the axis, and the outer peripheral surface of the fixed pulley 14 is provided with a groove 141;

Referring to Fig. 1 and Fig. 3, the protection assembly 2 includes a telescopic rod 21 vertically arranged on the beam 12, the telescopic rod 21 includes a sliding sleeve 22 and an extension rod 23, and the upper end of the sliding sleeve 22 is affixed to the beam 12, The extension rod 23 can be slidably connected in the sliding sleeve 22 along the length direction of the sliding sleeve 22. A spring member 24 with a vertical axis is fixed in the sliding sleeve 22. One end of the spring member 24 is connected to the sliding sleeve 22. One end far away from the extension rod 23 is affixed, and the other end of the spring member 24 is fixedly connected with the end of the extension rod 23 extending into the sliding sleeve 22; the spring member 24 can pull the extension rod 23 towards the sliding sleeve 22 for sliding The lower end of the extension rod 23 extends out of the sliding sleeve 22, and the lower end of the extension rod 23 is rotatably connected with a rotating roller 25 arranged horizontally on the axis. A stop stare 27 is fixedly connected above the rotating roller 25, and the protrusion 26 can abut against the stop stare 27.

Referring to Fig. 1 and Fig. 4, the side of support table 1 corresponding column 11 far away from beam 12 is fixedly connected with vertically arranged driving cylinder 3, and the upper end of driving cylinder 3 is fixedly connected with horizontally arranged lifting plate 31, and lifting plate 31 is fixed on Rewinding frame 32 is connected, and winding frame 32 is rotatably connected with winding roller 33. The axis of winding roller 33 is horizontally arranged. The position is fixedly connected with a driving motor 35, and the driving motor 35 can drive the winding roller 33 to rotate; one end of the winding roller 33 is rotatably connected with a ratchet 36 coaxially arranged, and the position of the winding frame 32 corresponding to the ratchet 36 is rotatably connected with a ratchet. The claw 37, the ratchet 37 and the ratchet 36 are engaged with each other. A torsion spring 38 is arranged at the rotational position of the ratchet 37, and the torsion spring 38 can drive the ratchet 37 to rotate in a direction close to the ratchet 36.

The implementation principle of a small hoist in the embodiment of the present application is: the implementation principle of a small hoist in the embodiment of the application is: one end of the steel wire rope 34 is fixed to the material, and the winding roller 33 is driven by the drive motor 35 to complete the process. Rotate, the winding roller 33 drives the ratchet 36 to rotate coaxially, when the ratchet 37 and the ratchet 36 mesh with each other, the torsion spring 38 can drive the ratchet 37 to continuously abut against the ratchet 36, limiting the reverse rotation of the winding roller 33 , when the weight of the material is too large, when a large force is applied to the steel wire rope 34, the drive cylinder 3 drives the lifting plate 31 machine to move in the vertical direction, adjusts the angle of the steel wire rope 34 at both ends of the fixed pulley 14, and drives the material on the steel wire rope 34 Perform lifting operations.

During the hoisting operation, the friction force between the steel wire rope 34 and the rotating roller 25 is increased by the protrusion 26 on the rotating roller 25 through the mutual abutment of the rotating roller 25 and the rotating roller 25. When the distance breaks, the spring member 24 pulls the extension rod 23 to slide into the sliding sleeve 22, and at the same time drives the rotating roller 25 and the steel wire rope 34 to move upwards, and the rotating roller 25 drives the steel wire rope 34 to move to the uppermost end, and the steel wire rope 34 and the protrusion 26 are in contact with the stopper. Stopping 27 abuts, slows down the falling trend of steel wire rope 34, and reduces personnel damage caused by the breakage of steel wire rope 34; groove 141 is set on fixed pulley 14, and steel wire rope 34 can be arranged in groove 141, through reinforcing rod 13 pairs of columns 11 and beam 12 between the reinforcement work.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (7)

1. A small-size machine that rises that hangs which characterized in that: the device comprises a supporting table (1), wherein an upright post (11) is arranged on the supporting table (1), a horizontally arranged beam (12) is arranged on the upright post (11), a winding frame (32) is arranged on the supporting table (1), a winding roller (33) is rotatably connected onto the winding frame (32), a steel wire rope (34) is wound on the winding roller (33), and a fixed pulley (14) is rotatably connected to one end, far away from the upright post (11), of the beam (12); be provided with protection subassembly (2) on crossbeam (12), protection subassembly (2) are including telescopic link (21) of vertical setting, telescopic link (21) lower extreme rotates and is connected with live-rollers (25), live-rollers (25) can with wire rope (34) mutual butt, the outer peripheral face array of live-rollers (25) is provided with a plurality of archs (26), relative motion between wire rope (34) and live-rollers (25) can be injectd in arch (26), crossbeam (12) correspond the position rigid coupling of live-rollers (25) and have to end and stop stupefied (27), it can with protruding (26) or wire rope (34) mutual butt to end to stop stupefied (27).

2. A compact hoist as claimed in claim 1, wherein: telescopic link (21) are including sliding cover (22) and extension rod (23), extension rod (23) can be followed the length direction of extension rod (23) and slided and connect in sliding cover (22), be provided with spring part (24) in sliding cover (22), the one end and the cover (22) rigid coupling that slides of spring part (24), the other end and extension rod (23) rigid coupling of spring part (24), spring part (24) have pulling extension rod (23) and tend to be close to the effort that slides cover (22) direction and remove, the elasticity of spring part (24) is less than the weight that lifts by crane on wire rope (34).

3. A compact hoist as claimed in claim 1, wherein: the steel wire rope winding machine is characterized in that a driving cylinder (3) is arranged on the supporting table (1), a lifting plate (31) is fixedly connected onto the driving cylinder (3), a winding frame (32) is arranged on the lifting plate (31), and a winding roller (33) which winds a steel wire rope (34) is rotatably connected onto the winding frame (32).

4. A compact hoist as claimed in claim 3, wherein: a ratchet wheel (36) which coaxially rotates is fixedly connected to the winding roller (33), a pawl (37) is arranged at the position, corresponding to the ratchet wheel (36), of the winding frame (32), and the pawl (37) can be abutted against the ratchet wheel (36).

5. A small hoist as claimed in claim 4, wherein: and a torsion spring (38) is arranged at the rotating position of the winding frame (32) corresponding to the pawl (37), one end of the torsion spring (38) is fixedly connected with the pawl (37), and the other end of the torsion spring (38) is fixedly connected with the winding frame (32).

6. A compact hoist as claimed in claim 1, wherein: a groove (141) is formed in the fixed pulley (14) along the outer peripheral surface of the fixed pulley (14).

7. A compact hoist as claimed in claim 1, wherein: be provided with between crossbeam (12) and stand (11) stiffener (13), stiffener (13) slope sets up, and the lower one end and stand (11) rigid coupling of stiffener (13) vertical position, the higher one end and crossbeam (12) rigid coupling of the vertical position of stiffener (13).

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