Search

CN-122009981-A - Lifting device used in narrow space

CN122009981ACN 122009981 ACN122009981 ACN 122009981ACN-122009981-A

Abstract

The invention relates to the technical field of hoisting devices, in particular to a hoisting device for a narrow space, which comprises symmetrically arranged struts, wherein two ends of each strut are connected through inserted bars, a track is arranged on each strut, supporting legs are slidably arranged on each strut, each supporting leg is provided with a cross beam, a frame body is slidably arranged on each cross beam, a driving mechanism is arranged in each frame body, a plate block is inserted under each frame body, a winch is fixedly arranged at the bottom of each plate block, and steel wire ropes are connected to the corresponding winch. According to the invention, the adjustable frame structure is formed by the symmetrically arranged support posts and the inserted bars, and the telescopic cross beam which is connected by the convex bars and the grooves in a sliding way is matched, so that the whole span can be flexibly adjusted according to the actual width of a narrow space, the adaptability of the device to different operation environments is obviously improved, the structure is compact, the transmission is reliable, and the problem that the traditional driving mode is difficult to arrange when the space is limited is effectively avoided.

Inventors

  • DING WENTAO
  • SUN BINGLI
  • WANG LE
  • ZHANG ZHENYU

Assignees

  • 中国机械工业机械工程有限公司

Dates

Publication Date
20260512
Application Date
20260326

Claims (8)

  1. 1. The lifting and hoisting device for the narrow space is characterized by comprising symmetrically arranged support posts (1), wherein two ends of each support post (1) are connected through a plug rod (2), a track (3) is arranged on each support post (1), supporting legs (10) are arranged on each support post (1) in a sliding mode, a cross beam (5) is arranged on each supporting leg (10), a frame body (4) is arranged on each cross beam (5) in a sliding mode, a driving mechanism is arranged in each frame body (4), a plate block (9) is inserted under each frame body (4), a hoist (15) is fixedly arranged at the bottom of each plate block (9), a steel wire rope (8) is connected to each hoist (15), and hooks (12) are connected to each steel wire rope (8); The support leg (10) is provided with a sliding mechanism, the sliding mechanism comprises two rollers (6), elastic mechanisms are symmetrically arranged on two sides of the frame body (4), and the two elastic mechanisms are respectively connected with two ends of the plate (9).
  2. 2. The lifting device for a small space according to claim 1, wherein the support column (1) is provided with a track (3), the roller (6) is provided with an annular groove, and the roller (6) rolls on the track (3) through the annular groove.
  3. 3. The hoisting device for a narrow space according to claim 1, wherein the sliding mechanism further comprises a first motor (11), a driving end of the first motor (11) is fixedly connected with a deflection plate (18), a deflection shaft (19) is fixedly connected to a position, deviated from the driving end, of the deflection plate (18), an inverted-T-shaped shaft (7) is fixedly connected to one end, far away from the deflection plate (18), of the deflection shaft (19), a central shaft (32) is arranged at one end of the roller (6), positions, deviated from the center of a circle, of the two central shafts (32) are rotationally connected with the inverted-T-shaped shaft (7) through connecting pieces, and a connecting plate (17) is further connected between the two central shafts (32).
  4. 4. The hoisting device for a narrow space according to claim 1, wherein an inner groove (13) is formed below the frame body (4), the plate (9) is slidably inserted into the inner groove (13), the windlass (15) is fixedly installed at the bottom of the plate (9), steering ports (30) are formed at two ends of the inner groove (13), and the end part of the steel wire rope (8) passes through the two steering ports (30) at the same time and is fixedly connected with the outer surface of the windlass (15), and the hook (12) is slidably sleeved on the steel wire rope (8).
  5. 5. The hoisting device for a small space according to claim 4, wherein the elastic mechanism comprises a spring (21) and two movable shafts (20), one ends of the two movable shafts (20) are rotatably connected together, one ends of the two movable shafts (20), which are far away from each other, are rotatably connected with the outer surface of the frame body (4) and the end part of the plate (9) respectively, two ends of the spring (21) are connected with the outer surface of the frame body (4) and the movable shafts (20) connected with the plate (9) respectively, and the spring (21) is connected with a conductive circuit.
  6. 6. The lifting device for a narrow space according to claim 1, wherein a groove is formed in one beam (5), a convex strip is arranged on the other beam (5), the convex strip is arranged in the groove in a sliding manner, and tooth grooves are formed in the upper surfaces of the sides, away from each other, of the two beams (5).
  7. 7. The hoisting device for a narrow space according to claim 6, wherein a first rolling shaft (25) and a second rolling shaft (16) are rotatably installed at two ends in the frame body (4), a first rolling gear (24) is fixedly installed at two ends of the first rolling shaft (25), a second rolling gear (14) is fixedly installed at two ends of the second rolling shaft (16), and the second rolling gear (14) and the first rolling gear (24) are meshed with tooth grooves, and the two first rolling shafts (25) are arranged at inner positions.
  8. 8. The hoisting device for a narrow space according to claim 7, wherein an inner cavity is formed in the frame body (4), the driving mechanism is installed in the inner cavity and comprises a second motor (22), two driving ends of the second motor (22) are fixedly connected with driving gears (23), one driving gear (23) is in meshed connection with a first driven gear (31), the first driven gear (31) is meshed with one of the first rolling gears (24), the other end of the driving gear (31) is in meshed connection with a second driven gear (26), the second driven gear (26) is in meshed connection with a third driven gear (27), the third driven gear (27) is in meshed connection with a fourth driven gear (28), the fourth driven gear (28) is in meshed connection with the first rolling gear (24) at a diagonal position, and the third driven gear (27), the fourth driven gear (28), the second driven gear (26) and the first driven gear (31) are all installed in the inner cavity through a mounting plate (29).

Description

Lifting device used in narrow space Technical Field The invention relates to the technical field of lifting devices, in particular to a lifting device used in a narrow space. Background In various industrial construction, equipment overhaul, building installation and other scenes, the hoisting device is an essential operation device. Conventional hoisting equipment such as bridge cranes, gantry cranes, mobile cranes, etc., typically require a relatively large working space to complete the hoisting, moving, and positioning operations. However, in a narrow and limited space such as a ship cabin, an underground pipe gallery, an equipment interlayer, a nuclear power station internal structure and the like, conventional hoisting equipment is often difficult to directly apply due to the fact that the overall size is too large, flexible arrangement is not possible, or an effective moving path is lacking. Therefore, aiming at the operation requirement of a narrow space, a plurality of miniaturized, modularized or detachable hoisting devices are gradually developed in the industry, and the aim of safely hoisting and carrying the heavy objects in a limited space is achieved. The utility model discloses a hoisting device for hoisting in a narrow space, belonging to the technical field of underground construction engineering, and the hoisting device comprises an auxiliary mounting frame and a connecting piece, wherein the connecting piece is in sliding connection with a cross beam through a ball screw structure of a stepping motor, and the connecting piece drives the auxiliary mounting frame to move together, so that the distance between the main mounting frame and the auxiliary mounting frame is flexibly adjusted. In the prior art, the hoisting equipment suitable for a narrow space is fixed in structure, the supporting span and the lifting point position are difficult to flexibly adjust according to the actual space size of the site, and when the width of a working area is changed or an obstacle exists, the equipment cannot be effectively attached to the use environment, so that the applicability is limited. Disclosure of Invention The invention aims to solve the defects in the prior art that the lifting device is adaptable to a small space, the structures of a plurality of devices are fixed, the supporting span and the lifting point position are difficult to flexibly adjust according to the actual space size of a site, when the width of a working area is changed or an obstacle exists, the devices cannot be effectively attached to the use environment, so that the applicability is limited, and the lifting device for the small space is provided. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a jack-up hoist device for in narrow and small space, includes the pillar that the symmetry set up, two the both ends of pillar pass through the inserted bar and connect, be provided with the track on the pillar, two all slide on the pillar and be provided with the supporting leg, two the supporting leg all is provided with the crossbeam, two slidable mounting has the framework on the crossbeam, be provided with actuating mechanism in the framework, the below of framework is inserted and is equipped with the plate, the bottom fixed mounting of plate has the hoist engine, be connected with wire rope on the hoist engine, be connected with the couple on the wire rope; The support leg is provided with a sliding mechanism, the sliding mechanism comprises two rollers, elastic mechanisms are symmetrically arranged on two sides of the frame body, and the two elastic mechanisms are respectively connected with two ends of the plate. Preferably, the support is provided with a track, the roller is provided with an annular groove, and the roller rolls on the track through the annular groove. Preferably, the sliding mechanism further comprises a first motor, the driving end of the first motor is fixedly connected with a deflection plate, the position, away from the driving end, of the deflection plate is fixedly connected with a deflection shaft, one end, away from the deflection plate, of the deflection shaft is fixedly connected with an inverted-T-shaped shaft, one end of each roller is provided with a central shaft, the positions, away from the circle center, of the two central shafts are rotationally connected with the inverted-T-shaped shaft through connecting pieces, and a connecting plate is further connected between the two central shafts. Preferably, an inner groove is formed in the lower portion of the frame body, the plate is inserted in the inner groove in a sliding mode, the hoist is fixedly mounted at the bottom of the plate, steering ports are formed in two ends of the inner groove, the end portion of the steel wire rope penetrates through the two steering ports at the same time and is fixedly connected with the outer surface of the hoist, and the hook