CN216444865U

CN216444865U - Spring balancer for hoisting

Info

Publication number: CN216444865U
Application number: CN202220008634.1U
Authority: CN
Inventors: 刘铁; 刘云; 王永胜
Original assignee: Hebei Epuda Lifting Equipment Manufacturing Co ltd
Current assignee: Hebei Epuda Lifting Equipment Manufacturing Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-05-06
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a spring balancer for lifting, which comprises a shell, wherein an upper safety hole and a lower safety hole are formed in the shell, a volute spring, a main shaft, a cone pulley and a pull rope are arranged in the shell, a worm wheel and a worm which drive the main shaft to rotate are arranged on the outer side of the shell, the spring balancer also comprises a rocking handle transmission wrench which drives the worm to rotate, the rocking handle transmission wrench comprises a sleeve, an insert rod is vertically arranged on the outer wall of the top of the sleeve and is in inserted fit with the lower safety hole, a balancing handle is arranged on the outer wall of the bottom of the sleeve, a rocking rod capable of moving up and down is arranged in the sleeve, a rocking handle is arranged at the lower end of the rocking rod, a sleeve head is arranged at the upper end of the rocking rod, and a polygonal groove which is in clamped fit with an adjusting end of the worm is formed in the top surface of the sleeve head. According to the utility model, the rocking handle transmission wrench drives the worm gear and worm mechanism to rotate, so that the elastic force of the volute spiral spring can be adjusted without taking down the spring balancer, and the rocking handle transmission wrench and the balancer are convenient to disassemble and assemble and are very convenient to use.

Description

Spring balancer for hoisting

Technical Field

The utility model relates to the technical field of hoisting equipment, in particular to a spring balancer for hoisting.

Background

The spring balancer mainly utilizes the energy accumulated by the coil spring in the spring balancer to offset the tension of the steel wire rope and the gravity of the articles hung on the balancer, so that the articles are in a weightless state and can freely move up and down. The spring balancer is mainly composed of a shell, a cone pulley in the shell, a steel wire rope on the cone pulley and an energy storage spring, wherein the energy storage spring is respectively connected with an energy storage seat and the cone pulley and transmits the energy of the energy storage spring to the cone pulley through the energy storage seat.

Chinese utility model patent with application number CN201911253595.0 discloses a spring balancer convenient to operation among the prior art, this balancer realizes the regulation of spring force size through turbine worm mechanism, but the spring balancer often suspends in midair in the eminence of 2.5 meters to 3 meters in the use, the lower part of balancer is hanging welding tongs or heavier instrument such as electronic or pneumatics again, when carrying out the adjustment of spring force, need take off the spring balancer, rethread spanner rotates the elasticity of worm adjustment spring, when some work piece weight differences that need hoist and mount are great, need ceaselessly take off the balancer and adjust, it is very inconvenient.

SUMMERY OF THE UTILITY MODEL

Based on the above problems, the utility model aims to provide a spring balancer for lifting, which has convenient elasticity adjustment, and adopts the following technical scheme:

the utility model relates to a spring balancer for lifting, which comprises a shell, wherein an upper safety hole and a lower safety hole are formed in the shell, a volute spring, a main shaft, a cone pulley and a pull rope are arranged in the shell, a turbine and a worm which drive the main shaft to rotate are arranged on the outer side of the shell, the spring balancer also comprises a rocking handle transmission wrench which drives the worm to rotate, the rocking handle transmission wrench comprises a sleeve, an insert rod is vertically arranged on the outer wall of the top of the sleeve and is in inserted fit with the lower safety hole, a balancing handle is arranged on the outer wall of the bottom of the sleeve, a rocking rod which can move up and down is arranged in the sleeve, a rocking handle is arranged at the lower end of the rocking rod, a sleeve head is arranged at the upper end of the rocking rod, and a polygonal groove which is in clamped fit with an adjusting end of the worm is formed in the top surface of the sleeve head.

Furthermore, a spring is arranged below the sleeve head, the spring is sleeved on the rocker, two ends of the spring respectively abut against the upper retaining sheet and the lower retaining sheet, the upper retaining sheet is fixed on the rocker, and the lower retaining sheet is fixed on the sleeve.

Furthermore, the sleeve head is detachably connected with the rocker.

Furthermore, the bottom surface of the sleeve head is provided with an inserting protrusion, and the top of the rocker is provided with an inserting groove matched with the inserting protrusion.

Furthermore, the bottom of the inserting groove is provided with a magnet.

Furthermore, a rubber handle sleeve is sleeved on the balance handle.

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

the worm gear mechanism is driven to rotate by the rocking handle transmission wrench, so that the elasticity of the volute spiral spring can be adjusted without taking down the spring balancer, the rocking handle transmission wrench and the balancer are convenient to disassemble and assemble, and the worm gear mechanism is very convenient to use.

Drawings

The utility model is further illustrated in the following description with reference to the drawings.

FIG. 1 is a schematic structural diagram of a spring balancer body for lifting in an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of a spring balancer and a rocking handle transmission wrench for lifting in the embodiment of the present invention;

FIG. 3 is a schematic structural view of the spring installed on the upper portion of the sleeve according to the embodiment of the present invention;

FIG. 4 is a schematic view of a disassembled structure of the cuff and the rocker in the embodiment of the present invention.

Description of reference numerals: 1. a housing; 101. an upper safety hole; 102. a lower safety hole; 2. a turbine; 3. a worm; 4. a rocking handle transmission wrench; 401. a sleeve; 402. inserting a rod; 403. a balance handle; 404. a rocker; 405. sleeving heads; 406. a polygonal groove; 407. a rocking handle; 408. a blocking piece is arranged; 409. a lower baffle plate; 410. a spring; 411. inserting grooves; 412. inserting and connecting the bulges; 413. and a magnet.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, the present embodiment discloses a spring balancer for hoisting, which mainly includes a housing 1, an upper safety hole 101 and a lower safety hole 102 are disposed on the housing 1, a volute spring, a main shaft, a cone pulley and a pull rope are disposed in the housing 1, and a turbine 2 and a worm 3 for driving the main shaft to rotate are disposed outside the housing 1. The two ends of the main shaft are rotatably connected to the inner wall of the shell, one end of the main shaft extends out of the shell, the cone pulley is sleeved on the main shaft, a rope groove is formed in the outer side of the cone pulley, the pull rope is wound in the rope groove of the cone pulley, the outer end of the spiral spring is fixedly connected with the inner side of the cone pulley, and the inner end of the spiral spring is fixedly connected with the main shaft; one end of the main shaft extending out of the shell is provided with a worm wheel 2, the worm wheel 2 is meshed with a worm 3, the main shaft is fixed under the self-locking function of the worm wheel 2 and the worm 3, and the worm 3 is connected with the outer wall of the shell through a mounting seat. The structure of the spring balancer belongs to the prior art, and the detailed structure thereof is not described herein.

In order to conveniently adjust the elasticity of the spiral spring, the spiral spring further comprises a rocking handle transmission wrench 4 for driving the worm 3 to rotate. As shown in fig. 2, the rocking handle transmission wrench 4 includes a sleeve 401, an insertion rod 402 is fixed on an outer wall of the top of the sleeve 401, the insertion rod 402 is arranged perpendicular to the sleeve 401, the insertion rod 402 is in insertion fit with the lower safety hole 102, a balance handle 403 is arranged on an outer wall of the bottom of the sleeve 401, a rocking rod 404 capable of moving up and down is arranged in the sleeve 401, a rocking handle 407 is arranged at the lower end of the rocking rod 404, a sleeve head 405 is arranged at the upper end of the rocking rod 404, and a polygonal groove 406 in clamping fit with an adjusting end of the worm 3 is formed in the top surface of the sleeve head 405.

When the rocking handle transmission wrench 4 is used, the inserting rod 402 is inserted into the lower safety hole 102, the rocking rod 404 is lifted upwards, the polygonal groove 406 is inserted into the adjusting end of the worm 3, the elastic force of the volute spiral spring can be adjusted by rotating the lower rocking handle 407, and when the rocking handle 407 is rotated, in order to prevent the shell of the balancer from rotating, the other hand of an operator holds the balance handle 403 to prevent the shell 1 from rotating. The balance handle 403 is sleeved with a rubber handle sleeve, so that the balance handle can be conveniently held by a worker.

It will be appreciated by those skilled in the art that the adjustment end of the worm 3 is a polygonal protrusion and the polygonal recess 406 of the collar 405 fits snugly into the adjustment end of the worm 3. The socket 405 may be a socket for a wrench, such as a square socket or a hexagonal socket.

In order to save labor during operation of an operator, in this embodiment, as shown in fig. 3, a spring 410 is disposed below the sleeve head 405, the spring 410 is sleeved on the rocker 404, two ends of the spring 410 respectively abut against the upper retaining piece 408 and the lower retaining piece 409, the upper retaining piece 408 is fixed on the rocker 404, and the lower retaining piece 409 is fixed on the sleeve 401. The spring 410 may provide support for the rocker 404 so that an operator does not have to lift the rocker 404 upward when operating the rotating crank 407. When the rocking handle transmission wrench 4 is disassembled, the rocker 404 is pulled downwards, and the sleeve head 405 and the worm 3 can be separated.

In this embodiment, the cuff 405 is detachably connected to the rocker 404, so that the cuff 405 of different models can be conveniently replaced.

As a structure capable of realizing detachment of the socket 405, in the present embodiment, as shown in fig. 4, the bottom surface of the socket 405 is provided with an insertion protrusion 412, the top of the rocker 404 is provided with an insertion groove 411 matched with the insertion protrusion 412, and the bottom of the insertion groove 411 is provided with a magnet 413. The magnet 413 can make the insertion protrusion 412 and the insertion groove 411 inserted more firmly and stably.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a lift by crane and use spring balancer, includes casing (1), be provided with insurance hole (101) and lower insurance hole (102) on casing (1), be provided with spiral spring, main shaft, cone pulley and stay cord in casing (1), the outside of casing (1) is provided with the drive main shaft pivoted turbine (2) and worm (3), its characterized in that: still including the drive worm (3) pivoted rocking handle transmission spanner (4), rocking handle transmission spanner (4) include sleeve (401), be provided with inserted bar (402) on the outer wall at sleeve (401) top perpendicularly, inserted bar (402) with insurance hole (102) cooperation of pegging graft down, be provided with balanced handle (403) on the outer wall of sleeve (401) bottom, be provided with rocker (404) that can move about from top to bottom in sleeve (401), the lower extreme of rocker (404) is provided with rocking handle (407), the upper end of rocker (404) is provided with pullover (405), the top surface of pullover (405) seted up with worm (3) regulation end joint complex polygon recess (406).

2. The spring balancer for lifting according to claim 1, wherein: a spring (410) is arranged below the sleeve head (405), the rocker (404) is sleeved with the spring (410), two ends of the spring (410) respectively abut against an upper blocking piece (408) and a lower blocking piece (409), the upper blocking piece (408) is fixed on the rocker (404), and the lower blocking piece (409) is fixed on the sleeve (401).

3. The spring balancer for hoisting according to claim 1, wherein: the sleeve head (405) is detachably connected with the rocker (404).

4. The spring balancer for hoisting according to claim 3, wherein: the bottom surface of the sleeve head (405) is provided with an inserting protrusion (412), and the top of the rocker (404) is provided with an inserting groove (411) matched with the inserting protrusion (412).

5. The spring balancer for hoisting according to claim 4, wherein: and a magnet (413) is arranged at the bottom of the insertion groove (411).

6. The spring balancer for lifting according to claim 1, wherein: the balance handle (403) is sleeved with a rubber handle sleeve.