CN219078958U

CN219078958U - Winch with safety limiting structure

Info

Publication number: CN219078958U
Application number: CN202223555050.5U
Authority: CN
Inventors: 田海威; 白朝凯; 白德欣; 朱东坡; 李非凡
Original assignee: Zhongwei Construction Group Co ltd
Current assignee: Zhongwei Construction Group Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-26
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the field of windlass, in particular to a windlass with a safety limiting structure, which comprises a support frame, wherein a rotating shaft is rotatably arranged in the support frame, a steel cable roller is arranged on the outer side of the rotating shaft, and a wire arrangement mechanism is arranged in the support frame. According to the utility model, the limiting mechanism is arranged, the central part rod can drive the irregular driving arm to synchronously rotate, when the rotating shaft rotates at an excessive speed and exceeds a threshold value, the irregular driving arm is thrown out towards the edge due to the rapid rotation of the central part rod, so that the inner tooth socket of the internal gear plate is clamped to realize instant locking, automatic limiting braking is realized, when a hoist is used for lifting a heavy object, the rotating shaft can stop rotating rapidly, the phenomenon of falling or rapid ejection of the heavy object caused by failure of the driving element is prevented, and the safety of equipment is improved.

Description

Winch with safety limiting structure

Technical Field

The utility model relates to the field of windlass, in particular to a windlass with a safety limit structure.

Background

The hoist is a small and light hoisting device, also called winch, for hoisting or pulling heavy objects by winding steel wire ropes or chains by using reels. The hoist may vertically lift, horizontally or obliquely drag the weight. The hoist is divided into a manual hoist and an electric hoist. The electric hoist is now the main. Can be used alone or as a component in hoisting, road building, mine lifting and other machines.

In the existing manual winches, most of the manual winches are not provided with emergency braking devices, when the manual winches lift heavy objects, the danger of falling the heavy objects exists, potential safety hazards are large, meanwhile, the problems that wire ropes are wound in disorder and loose in winding are easy to occur in the winding process of the manual winches, the working efficiency and normal use of the winches are directly affected, and therefore the design of the winch with the safety limiting structure is needed.

Disclosure of Invention

Aiming at the problems in the background technology, a winch with a safety limiting structure is provided.

The utility model provides a winch with a safety limit structure, which comprises a support frame, wherein a rotating shaft is rotatably arranged in the support frame, a steel rope roller is arranged on the outer side of the rotating shaft, a wire arranging mechanism is arranged in the support frame, the wire arranging mechanism comprises a driving motor, a rack sprocket, a reciprocating screw rod, a moving block, a connecting rod, a sliding block, a sliding rod, a driving gear and a driven gear, and a limit mechanism is arranged on one side of the support frame.

Preferably, one side of support frame is provided with driving motor, one side of driving motor is connected with reciprocating screw, the outside of reciprocating screw is provided with the movable block, the top of movable block is provided with the connecting rod, and the quantity of connecting rod is four, the top of connecting rod is provided with the sliding block.

Preferably, a sliding rod is arranged in the support frame, and the sliding rod is inserted into the sliding block in a sliding manner.

Preferably, one end of the reciprocating screw rod is provided with a driving gear, the outer side of the rotating shaft is provided with a driven gear, and rack sprockets are meshed and mounted on the outer sides of the driving gear and the driven gear.

Preferably, an encoder is arranged on the driving motor.

Preferably, the outer side of the wire rope winding roller is uniformly wound with the wire rope, and one end of the wire rope penetrates through the inside of the connecting rod.

Preferably, the stop gear includes fixed stop box, one side of fixed stop box is connected with one side of support frame, one side of axis of rotation is provided with the central part pole, the inside of fixed stop box is fixedly provided with the internal gear board, the outside of central part pole is provided with the irregular actuating arm.

Compared with the prior art, the utility model has the beneficial effects that:

1. through being provided with stop gear, the central part pole can drive irregular actuating arm synchronous revolution, when the axis of rotation speed is too fast to rotate, surpass behind the threshold value, because the quick rotation of central part pole, irregular actuating arm receives centrifugal force, and get rid of to the edge to block the inside tooth's socket of internal tooth wheel board and realize locking in the twinkling of an eye, realized automatic spacing braking, when the hoist engine is when promoting the heavy object, make the axis of rotation can stop rotatory fast, prevent the phenomenon that the cargo heavy object that causes falls or rushes the top fast after the driving piece is malfunctioning, the security of increase equipment.

2. Through being provided with driving motor, rack sprocket, reciprocating screw, movable block, connecting rod and sliding block, driving motor starts for reciprocating screw takes place to rotate, makes the movable block reciprocate on reciprocating screw and rotates, makes the sliding block of movable block top horizontal slip increase the stability that the movable block removed on the sliding rod, can guide the rope through the even orderly winding of arranging of connecting rod on the cable reel, and the driving gear is rotatory, acts on driven gear through rack sprocket, makes axis of rotation and reciprocating screw carry out synchronous rotation, can avoid wire rope to receive the indiscriminate and receive the loose problem of line.

Drawings

FIG. 1 is a schematic elevational view of the structure of the present utility model;

FIG. 2 is a schematic top view of the structure of the present utility model;

FIG. 3 is a schematic side view of the drive gear, driven gear and rack sprocket of the present utility model;

fig. 4 is a schematic side view of the limiting mechanism of the present utility model.

In the figure: 110. a support frame; 120. a steel cable winding roller; 121. a rotating shaft; 130. a driving motor; 131. a rack sprocket; 132. a reciprocating screw rod; 133. a moving block; 134. a connecting rod; 135. a sliding block; 136. a slide bar; 137. a drive gear; 138. a driven gear; 200. a limiting mechanism; 210. an internal gear plate; 211. fixing a limit box; 212. an irregular drive arm; 213. a central member bar.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model relates to a winch with a safety limit structure, which comprises a support frame 110, wherein all electric appliances used in the utility model are directly purchased in the market, and the specific working principle of the electric appliances is the prior art which is well known to the person skilled in the art, so the specific working principle is not described herein, a rotating shaft 121 is rotatably arranged in the support frame 110, a steel rope roller 120 is arranged on the outer side of the rotating shaft 121, a wire arranging mechanism is arranged in the support frame 110, the wire arranging mechanism comprises a driving motor 130, a rack sprocket 131, a reciprocating screw 132, a moving block 133, a connecting rod 134, a sliding block 135, a sliding rod 136, a driving gear 137 and a driven gear 138, and a limit mechanism 200 is arranged on one side of the support frame 110; the limiting mechanism 200 comprises a fixed limiting box 211, one side of the fixed limiting box 211 is connected with one side of the supporting frame 110, one side of the rotating shaft 121 is provided with a central part rod 213, an inner gear plate 210 is fixedly arranged in the fixed limiting box 211, and an irregular driving arm 212 is arranged on the outer side of the central part rod 213. With reference to the existing principle of safety belt limiting, under the normal state, the center part rod 213 can drive the irregular driving arm 212 to synchronously rotate, when the speed of the rotating shaft 121 is too high, after exceeding a threshold value, the irregular driving arm 212 is thrown out towards the edge due to the rapid rotation of the center part rod 213, so that the inner tooth socket of the inner gear plate 210 is clamped to realize instant locking, automatic limiting braking is realized, when the winch is lifting a heavy object, the rotating shaft 121 can stop rapid rotation, the phenomenon that the heavy object falls or rushes to the top of goods caused by failure of a driving piece is prevented, and the safety of equipment is improved.

Example two

Compared with the first embodiment, referring to fig. 1, a driving motor 130 is disposed on one side of a supporting frame 110, a reciprocating screw 132 is connected to one side of the driving motor 130, a moving block 133 is disposed on the outer side of the reciprocating screw 132, connecting rods 134 are disposed on top ends of the moving block 133, the number of the connecting rods 134 is four, and sliding blocks 135 are disposed on top ends of the connecting rods 134; the driving motor 130 is started to enable the reciprocating screw rod 132 to rotate, so that the moving block 133 rotates on the reciprocating screw rod 132 in a reciprocating manner, and the problems of wire rope winding disorder and winding loosening can be avoided.

Further, a sliding rod 136 is provided inside the support frame 110, and the sliding rod 136 is slidably inserted into the sliding block 135; the outer side of the steel rope winding roller 120 is uniformly wound with the steel rope, one end of the steel rope passes through the inside of the connecting rod 134, so that the sliding block 135 above the moving block 133 horizontally slides on the sliding rod 136 to increase the moving stability of the moving block 133, and the steel rope can be guided to be uniformly and orderly arranged and wound on the steel rope winding roller 120 through the connecting rod 134.

Example III

Compared with the first embodiment, referring to fig. 2, one end of the reciprocating screw 132 is provided with a driving gear 137, the outer side of the rotating shaft 121 is provided with a driven gear 138, the driving gear 137 and the outer side of the driven gear 138 are engaged and provided with a rack sprocket 131, the driving gear 137 rotates, and the driven gear 138 acts on the rack sprocket 131 to synchronously rotate the rotating shaft 121 and the reciprocating screw 132.

Further, an encoder is disposed on the driving motor 130; the signals or data are compiled and converted into signal forms which can be used for communication, transmission and storage, and long-distance positioning can be measured.

The working principle of the utility model is as follows: under normal condition, the center part rod 213 can drive the irregular driving arm 212 to synchronously rotate, when the rotation shaft 121 rotates too fast, after exceeding a threshold value, the irregular driving arm 212 is thrown out towards the edge due to the fast rotation of the center part rod 213, so that the internal tooth socket of the internal gear plate 210 is clamped to realize instant locking, automatic limit braking is realized, and when the hoist is lifting a heavy object, the rotation shaft 121 can stop rotating fast.

The driving motor 130 is started to enable the reciprocating screw 132 to rotate, the moving block 133 is enabled to rotate in a reciprocating manner on the reciprocating screw 132, the sliding block 135 above the moving block 133 horizontally slides on the sliding rod 136 to increase the moving stability of the moving block 133, the rope can be guided to be uniformly and orderly arranged and wound on the steel rope winding roller 120 through the connecting rod 134, the driving gear 137 rotates, the driven gear 138 is acted on through the rack sprocket 131, and the rotating shaft 121 and the reciprocating screw 132 synchronously rotate.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides a hoist engine with safe limit structure, its characterized in that, includes support frame (110), axis of rotation (121) are installed in the inside rotation of support frame (110), the outside of axis of rotation (121) is provided with steel cable roller (120), the inside of support frame (110) is provided with winding displacement mechanism, winding displacement mechanism includes driving motor (130), rack sprocket (131), reciprocating screw (132), movable block (133), connecting rod (134), sliding block (135), sliding rod (136), driving gear (137) and driven gear (138), one side of support frame (110) is provided with stop gear (200).

2. The winch with the safety limiting structure according to claim 1, wherein a driving motor (130) is arranged on one side of the supporting frame (110), a reciprocating screw rod (132) is connected to one side of the driving motor (130), a moving block (133) is arranged on the outer side of the reciprocating screw rod (132), connecting rods (134) are arranged at the top ends of the moving block (133), the number of the connecting rods (134) is four, and sliding blocks (135) are arranged at the top ends of the connecting rods (134).

3. The hoist with a safety limit structure according to claim 2, characterized in that a slide bar (136) is provided inside the supporting frame (110), and the slide bar (136) is slidably inserted inside the slide block (135).

4. The winch with the safety limiting structure according to claim 1, wherein a driving gear (137) is arranged at one end of the reciprocating screw (132), a driven gear (138) is arranged on the outer side of the rotating shaft (121), and a rack sprocket (131) is mounted on the outer sides of the driving gear (137) and the driven gear (138) in a meshed manner.

5. The winch with the safety limit structure according to claim 1, wherein an encoder is provided on the driving motor (130).

6. The winch with the safety limit structure according to claim 1, wherein the outer side of the wire rope winding roller (120) is uniformly wound with a wire rope, one end of which passes through the inside of the connecting rod (134).

7. The winch with the safety limit structure according to claim 1, wherein the limit mechanism (200) comprises a fixed limit box (211), one side of the fixed limit box (211) is connected with one side of the supporting frame (110), one side of the rotating shaft (121) is provided with a center part rod (213), an inner gear plate (210) is fixedly arranged in the fixed limit box (211), and an irregular driving arm (212) is arranged on the outer side of the center part rod (213).