CN221318964U - Lifting claw structure for brake drum - Google Patents

Abstract

The utility model discloses a lifting claw structure for a brake drum, which comprises a crane and a lifting mechanism hung at the lower end of the crane, wherein the lifting mechanism comprises a pair of fixed discs I and fixed discs II which are parallel up and down, a plurality of connecting rods with two ends respectively fixedly connected with the fixed discs I and the fixed discs II, a movable disc which slides on all the connecting rods and is positioned between the fixed discs I and the fixed discs II in parallel, rotating rods with three upper ends vertically connected with the bottom of the movable disc and the lower ends sliding through the fixed discs II, hanging rods horizontally fixedly connected with the lower ends of the rotating rods, rotating devices for driving all the rotating rods to synchronously rotate, a plurality of connecting rods with one ends respectively hinged with two sides of the movable disc, a plurality of tensioning rods with two ends respectively hinged with the other ends of all the connecting rods, and connecting rods with two ends respectively hinged with the tensioning rods and the fixed discs II. The utility model has the following advantages and effects: the effect of safely and stably lifting and transporting the brake drum can be achieved.

Description

Lifting claw structure for brake drum

Technical Field

The utility model relates to the technical field of brake drum transportation, in particular to a lifting claw structure for a brake drum.

Background

When the brake drum is processed or detected, the condition of carrying is certain, and because the brake drum is heavy and large in size, the labor intensity is high and the working efficiency is low due to the fact that the brake drum is carried by manpower, and the brake drum cannot be accurately placed in a tool because some small spaces (such as a machine tool) cannot be carried manually. At present, although a simple lifting appliance (such as a lifting chain, a lifting hook and the like) is used in a factory, unhooking is easy to occur, potential safety hazards exist, and the product and the lifting appliance are worn in the lifting process.

Disclosure of utility model

The utility model aims to provide a lifting claw structure for a brake drum, which has the effect of safely and stably lifting and transporting the brake drum.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a lifting claw structure that brake drum was used, includes the loop wheel machine, hangs in the hoisting mechanism of loop wheel machine lower extreme, hoisting mechanism includes a pair of upper and lower parallel fixed disk first and fixed disk second, many both ends fixed connection fixed disk first and fixed disk second's connecting rod respectively, slide on all connecting rods and parallel be located the fixed disk first and the fixed disk second between the movable disk, three upper ends perpendicular rotation connect movable disk bottom and lower extreme slide pass the dwang of fixed disk second, the peg of horizontal fixed connection dwang lower extreme, the rotary device of drive all dwang synchronous revolution, a plurality of one ends articulate respectively and connect the connecting rod first of movable disk both sides, a plurality of articulated tensioning rods of all connecting rod other ends respectively, both ends articulate respectively and connect tensioning rod and fixed disk second, fixed disk second and movable disk coaxial homodiameter, and connecting rod and dwang evenly encircle the axial lead of three before hanging the wheel hub, three the peg of dwang lower extreme encloses into one jointly and is the triangle-shaped, tensioning rod, connecting rod and dwang are parallel each other, and articulated connection have a couple of the top of the fixed disk of hanging down of connecting rod.

Through adopting above-mentioned technical scheme, when needs lift by crane transportation brake drum, at first, start the loop wheel machine and put down hoisting mechanism, make the lower extreme and the tensioning pole of three dwang in the hoisting mechanism, the overhead opening of follow brake drum jointly pierces its inside, then start rotary device drive three dwang respectively relative fixed disk two equidirectional rotations, because the peg of three dwang lower extreme encloses into the round jointly before hanging hub, and the profile is triangle-shaped, therefore after rotary device drive three dwang rotatory, the peg of each dwang lower extreme will overturn in the inside of brake drum and expand, and until the inside lateral wall of all peg contacts the brake drum stops, then the loop wheel machine promotes hoisting mechanism, again because the internal diameter of brake drum needs to be greater than the opening internal diameter, the peg after so expanding is in the lifting process upwards, will be relative hang the brake drum on the lower extreme of three dwang, and three dwang because the gravity that has born the brake drum, the fixed disk second is close to the fixed disk of below on the pulling connecting rod that will be relative, and be close to the fixed disk two is close to the fixed disk because of moving, fixed disk and tensioning rod are connected through first and second and tensioning rod respectively, thereby the effect is close to two in the fixed connection of the side wall of the relative pull rod, and the motion of the loop wheel machine, and the side wall is close to the fixed in the relative opening of brake drum, and the motion is realized.

The utility model is further provided with: the rotating device comprises a rotating shaft, a driving assembly, a rotating cylinder, a driving gear, a driven gear, a flat key and a key groove, wherein the two ends of the rotating shaft are rotationally connected with the first fixed disc and the second fixed disc, the driving assembly drives the rotating shaft to rotate, the rotating cylinder penetrates through the center of the movable disc and is sleeved with the rotating shaft in a sliding mode, the driving gear is fixedly arranged on the rotating cylinder, the driven gear is fixedly arranged on the rotating rod and is meshed with the driving gear, the flat key and the key groove are matched with each other, the annular limiting protrusions are fixedly arranged on the outer wall of the rotating cylinder, and the limiting protrusions and the driving gear are respectively located on the upper side and the lower side of the movable disc.

Through adopting above-mentioned technical scheme, when three dwang synchronous revolution needs to drive, at first drive assembly can drive the axis of rotation and rotate, because the axis of rotation outer wall and the inner wall of a rotation section of thick bamboo have the internal and external spline of mutually supporting respectively, consequently a rotation section of thick bamboo will rotate along with the axis of rotation to drive each driven gear of driving gear meshing transmission that installs on it simultaneously, driven gear then can drive the dwang synchronous revolution who connects respectively at last. The limiting protrusion of the outer wall of the rotating cylinder can be matched with the driving gear, so that the rotating cylinder is guaranteed to stably rotate and be connected to the moving disc.

The utility model is further provided with: the upper end of the rotating rod rotates to pass through the movable disc, and is fixedly connected with a limiting disc, and the limiting disc and the driven gear are respectively positioned on the upper side and the lower side of the movable disc.

Through adopting above-mentioned technical scheme, can ensure the upper end of each dwang stable rotation and connect the movable disk.

The utility model is further provided with: the driving assembly comprises a worm wheel fixedly arranged at the upper end of the rotating shaft, a worm rotatably arranged on the first fixed disk, and a small servo motor fixedly arranged on the first fixed disk and connected with the worm, wherein a cavity for installing the worm wheel and the worm is formed in the first fixed disk, and the upper end of the rotating shaft rotates to penetrate into the cavity in the first fixed disk and is fixedly connected with the worm wheel.

Through adopting above-mentioned technical scheme, when the rotation axis of rotation is required to be driven, at first servo motor drive worm rotates, then worm meshing transmission worm wheel rotates, and finally the worm wheel drives the rotation axis of rotation. The cavity of the first fixed disc is provided with the worm wheel and the worm, so that the transmission safety of the worm wheel and the worm can be ensured, and the false touch of workers can be avoided, so that the use safety of workers can be ensured.

The utility model is further provided with: the connecting rod is sleeved with a spring, and two ends of the spring are respectively connected with the movable disc and the fixed disc I.

Through adopting above-mentioned technical scheme, after the brake drum lifts by crane the transportation to appointed position, the spring can help the movable disk to restore to the initial distance with fixed disk one or fixed disk two fast, and then the tensioning of tensioning rod to brake drum open-ended fast is removed to make things convenient for the staff to lift by crane transportation work of unloading this brake drum and carrying out follow-up brake drum.

The beneficial effects of the utility model are as follows: through the rotating structures such as the rotating rod and the hanging rod in the lifting mechanism, the brake drum can be quickly hung, the gravity of the brake drum can be fully utilized by matching with the connecting rod structure between the movable disc, the fixed disc II and the tensioning rod, the tension of the opening of the tensioning rod tensioning brake drum can be converted, and the brake drum is stably fixed on the lifting mechanism, so that the crane can safely lift the brake drum.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present embodiment;

FIG. 2 is a schematic view of the structure of the lifting mechanism of the present embodiment;

fig. 3 is a schematic view of an inverted structure of the lifting mechanism of the present embodiment;

FIG. 4 is a schematic diagram of the driving assembly of the present embodiment;

In the figure, 1, a crane; 2. a lifting mechanism; 21. a first fixed disc; 211. hanging rings; 212. a cavity; 22. a second fixed disc; 23. a connecting rod; 231. a spring; 24. a moving tray; 25. a rotating lever; 251. a limit disc; 252. a hanging rod; 26. a rotating device; 261. a rotating shaft; 261a, flat keys; 262. a drive assembly; 262a, worm gear; 262b, a worm; 262c, a servo motor; 263. a rotating cylinder; 263a, keyway; 263b, limit projections; 264. a drive gear; 265. a driven gear; 27. a first connecting rod; 28. a tension rod; 29. a second connecting rod; 3. and a brake drum.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. 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 fall within the scope of the utility model.

Examples: 1-3, a lifting claw structure for a brake drum 3 comprises a crane 1, a lifting mechanism 1 suspended at the lower end of the crane 1, wherein the lifting mechanism 1 comprises a pair of a first fixed disc 21 and a second fixed disc 22 which are parallel up and down, a plurality of connecting rods 23 with two ends respectively fixedly connected with the first fixed disc 21 and the second fixed disc 22, a movable disc 24 sliding on all the connecting rods 23 and parallel between the first fixed disc 21 and the second fixed disc 22, three rotating rods 25 with upper ends vertically connected with the bottom of the movable disc 24 and lower ends vertically sliding through the second fixed disc 22, a hanging rod 252 horizontally fixedly connected with the lower end of the rotating rod 25, a rotating device 26 for driving all the rotating rods 25 to synchronously rotate, a plurality of connecting rods 27 with one ends respectively hinged with two sides of the movable disc 24, a plurality of tensioning rods 28 with two ends respectively hinged with the other ends of all the connecting rods 27, a plurality of connecting rods 29 with two ends respectively hinged with the tensioning rods 28 and the second fixed disc 22, the first fixing plate 21, the second fixing plate 22 and the second moving plate 24 have the same axes and the same diameters, the connecting rods 23 and the rotating rods 25 uniformly surround the axes of the three, the hanging rods 252 at the lower ends of the three rotating rods 25 enclose a circle before hanging the hub, the outline of the hanging rods is triangular, the tensioning rods 28, the connecting rods 23 and the rotating rods 25 are parallel to each other, the first connecting rods 27 and the second connecting rods 29 which are hinged to the tensioning rods 28 are vertically symmetrical, and the hanging rings 211 which are connected with hooks at the lower end of the crane 1 are fixedly arranged at the top of the first fixing plate 21.

By adopting the technical scheme, when the brake drum 3 is required to be lifted and transported, firstly, the crane 1 is started to put down the crane 1 mechanism, so that the lower ends of the three rotating rods 25 and the tensioning rods 28 in the crane 1 mechanism penetrate into the brake drum 3 from the top opening of the brake drum 3, then the rotating device 26 is started to drive the three rotating rods 25 to rotate in the same direction relative to the fixed disc two 22 respectively, as the hanging rods 252 at the lower ends of the three rotating rods 25 enclose a circle before the hub is hung and the outline is triangular, after the rotating device 26 drives the three rotating rods 25 to rotate, the hanging rods 252 at the lower ends of the rotating rods 25 can be overturned and unfolded in the brake drum 3 until one ends of all the hanging rods 252 contact with the inner side wall of the brake drum 3 to stop, then the crane 1 is lifted and because the inner diameter of the brake drum 3 is larger than the inner diameter of the opening, therefore, in the upward lifting process, the unfolded hanging rod 252 will relatively hang the brake drum 3 on the lower ends of the three rotating rods 25, and the three rotating rods 25 relatively pull the movable disc 24 on the connecting rod 23 to be close to the fixed disc two 22 below because of bearing the gravity of the brake drum 3, and because the movable disc 24, the fixed disc two 22 and the tensioning rod 28 are respectively hinged and connected through the first connecting rod 27 and the second connecting rod 29, in the process that the movable disc 24 relatively slides to be close to the fixed disc two 22, all the tensioning rods 28 are respectively close to and contact with the side walls of the opening of the brake drum 3 under the pushing of the first connecting rod 27 and the second connecting rod 29, so that the opening effect of the brake drum 3 is further realized, and meanwhile, the brake drum 3 is further stably fixed on the lifting mechanism 1 by matching with the rotating rods 25 and the hanging rod 252, so that the crane 1 can safely transport the brake drum 3. The spring 231 is sleeved on the connecting rod 23, two ends of the spring 231 are respectively connected with the movable disc 24 and the fixed disc one 21, after the brake drum 3 is lifted and transported to a designated position, the movable disc 24 can be helped to quickly restore to an initial distance from the fixed disc one 21 or the fixed disc two 22, and further the tensioning of the tensioning rod 28 to the opening of the brake drum 3 is quickly released, so that a worker can conveniently lift the brake drum 3 and lift and transport the subsequent brake drum 3.

As shown in fig. 2 and 3, the rotating device 26 includes a rotating shaft 261 with two ends rotatably connected to the centers of the first fixed disk 21 and the second fixed disk 22, a driving assembly 262 for driving the rotating shaft 261 to rotate, a rotating cylinder 263 rotating through the center of the moving disk 24 and slidably sleeved on the rotating shaft 261, a driving gear 264 fixedly mounted on the rotating cylinder 263, and a driven gear 265 fixedly mounted on the rotating rod 25 and meshed with the driving gear 264, wherein flat keys 261a and key grooves 263a are respectively arranged on the outer wall of the rotating shaft 261 and the inner wall of the rotating cylinder 263, a circle of annular limiting protrusions 263b are fixedly arranged on the outer wall of the rotating cylinder 263, and the limiting protrusions 263b and the driving gear 264 are respectively located on the upper side and the lower side of the moving disk 24. Through adopting above-mentioned technical scheme, when three dwang 25 synchronous rotation needs to be driven, at first drive assembly 262 can drive axis of rotation 261 rotation, because axis of rotation 261 outer wall and rotating cylinder 263 inner wall have the internal and external spline of mutually supporting respectively, therefore rotating cylinder 263 will rotate along with axis of rotation 261 to drive the driving gear 264 that installs on it simultaneously and mesh each driven gear 265 of transmission, driven gear 265 then can drive the synchronous rotation of dwang 25 that connects respectively at last. The limiting projection 263b on the outer wall of the rotary cylinder 263 can be matched with the driving gear 264, so that the rotary cylinder 263 is guaranteed to be stably and rotatably connected to the movable disc 24. Wherein, the upper end of the rotating rod 25 rotates and passes through the moving disc 24, and is fixedly connected with a limiting disc 251, and the limiting disc 251 and the driven gear 265 are respectively positioned at the upper side and the lower side of the moving disc 24, so that the upper end of each rotating rod 25 can be ensured to be stably connected with the moving disc 24 in a rotating way.

As shown in fig. 3 and 4, the driving unit 262 includes a worm gear 262a fixedly installed at an upper end of the rotation shaft 261, a worm 262b rotatably installed on the first fixed disk 21, a small-sized servo motor 262c fixedly installed on the first fixed disk 21 and connected to the worm 262b, a cavity 212 for installing the worm gear 262a and the worm 262b is formed in the first fixed disk 21, and the upper end of the rotation shaft 261 rotates to penetrate into the cavity 212 in the first fixed disk 21 and is fixedly connected to the worm gear 262a. By adopting the above technical scheme, when the rotation shaft 261 needs to be driven to rotate, the servo motor 262c drives the worm 262b to rotate first, then the worm 262b is meshed with the transmission worm gear 262a to rotate, and finally the worm gear 262a drives the rotation shaft 261 to rotate. The cavity 212 of the first fixing plate 21 is provided with the worm wheel 262a and the worm 262b, so that not only can the transmission safety of the worm wheel 262a and the worm 262b be ensured, but also the false touch of a worker can be avoided, and the use safety of the worker can be ensured.

Claims (5)

1. The utility model provides a lifting claw structure for brake drum, includes loop wheel machine (1), hangs loop wheel machine (1) structure in loop wheel machine (1) lower extreme, its characterized in that, loop wheel machine (1) constructs including a pair of upper and lower parallel fixed disk one (21) and fixed disk two (22), many both ends respectively fixed connection fixed disk one (21) and fixed disk two (22) connecting rod (23), slide on all connecting rods (23) and parallel be located fixed disk one (21) and fixed disk two (22) between movable disk (24), three upper ends perpendicular swivelling joint movable disk (24) bottom and lower extreme slides dwells through fixed disk two (22) dwang (25), hang down pole (252) of fixed connection dwang (25) lower extreme, drive all swivelling mechanism (26) of dwang (25) synchronous revolution, a plurality of one end respectively articulated connecting rod one (27) of both sides of movable disk (24), a plurality of tensioning rods (28) of articulated respectively the other end of all connecting rods one (27), both ends articulated connection tensioning rod (28) and fixed disk two (22) respectively, the coaxial center of rotation (24) and fixed disk two (24) are equi-axis (24) and equi-axially with fixed disk (21) and movable disk two (24), the utility model discloses a hanging rack, including hanging rack, rack and rack, including hanging rack, rack and rack, and is characterized in that three peg (252) of dwang (25) lower extreme enclose into a round jointly before hanging wheel hub, and the profile is triangle-shaped, tensioning lever (28), connecting rod (23) and dwang (25) are parallel to each other, and articulated connecting rod (27) and connecting rod two (29) of tensioning lever (28) are symmetrical from top to bottom, fixed disk one (21) top is fixed and is provided with link (211) of connecting crane (1) lower extreme couple.

2. A lifting claw structure for a brake drum according to claim 1, wherein: the rotary device (26) comprises a rotary shaft (261) with two ends in rotary connection with the centers of a first fixed disc (21) and a second fixed disc (22), a driving assembly (262) for driving the rotary shaft (261) to rotate, a rotary cylinder (263) which rotates to pass through the center of a moving disc (24) and is sleeved on the rotary shaft (261) in a sliding manner, a driving gear (264) fixedly installed on the rotary cylinder (263), and a driven gear (265) fixedly installed on a rotary rod (25) and meshed with the driving gear (264), wherein flat keys (261 a) and key grooves (263 a) which are mutually matched are respectively arranged on the outer wall of the rotary shaft (261) and the inner wall of the rotary cylinder (263), and a circle of annular limiting protrusions (263 b) are fixedly arranged on the outer wall of the rotary cylinder (263), and the limiting protrusions (263 b) and the driving gear (264) are respectively located on the upper side and the lower side of the moving disc (24).

3. A lifting claw structure for a brake drum according to claim 2, characterized in that: the upper end of the rotating rod (25) rotates to pass through the moving disc (24), and is fixedly connected with a limiting disc (251), and the limiting disc (251) and the driven gear (265) are respectively positioned on the upper side and the lower side of the moving disc (24).

4. A lifting claw structure for a brake drum according to claim 1, wherein: the driving assembly (262) comprises a worm wheel (262 a) fixedly installed at the upper end of the rotating shaft (261), a worm (262 b) rotatably installed on the first fixed disk (21), and a small servo motor (262 c) fixedly installed on the first fixed disk (21) and connected with the worm (262 b), a cavity (212) for installing the worm wheel (262 a) and the worm (262 b) is formed in the first fixed disk (21), the upper end of the rotating shaft (261) rotates to penetrate into the cavity (212) in the first fixed disk (21), and the worm wheel (262 a) is fixedly connected.

5. A lifting claw structure for a brake drum according to claim 1, wherein: the connecting rod (23) is sleeved with a spring (231), and two ends of the spring (231) are respectively connected with the movable disc (24) and the fixed disc I (21).