CN113998592A

CN113998592A - Pneumatic underground hoisting device for monorail crane

Info

Publication number: CN113998592A
Application number: CN202111232725.XA
Authority: CN
Inventors: 何宁宁; 任可; 朱鹏; 宋冠军; 周迪; 李军伟; 苗生; 杜建宾; 范芳飞
Original assignee: Scharf Mining Machinery Xuzhou Co ltd
Current assignee: Scharf Mining Machinery Xuzhou Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-02-01

Abstract

The invention discloses a pneumatic underground hoisting device for a monorail crane, which comprises two traveling trolleys, wherein the ground bottom ends of the two traveling trolleys are connected with a bearing cross beam through a spherical hinge connecting device, a pneumatic hoist is arranged in the middle of the bearing cross beam and electrically connected with a manual control valve block, two hoisting chains are arranged on the surface of the pneumatic hoist, movable pulley devices are arranged below two ends of the bearing cross beam, a chain wheel is movably connected inside the movable pulley devices, the hoisting chains of the pneumatic hoist penetrate through the chain wheel of the movable pulley devices, and the other end of the hoisting chains is fixed on the surface of the bearing cross beam. The pneumatic lifting beam has the characteristics of small volume, small requirement on space and the like, and the pneumatic lifting beam adopts pneumatic power to lift the main beam in special occasions, so that the pneumatic lifting beam is labor-saving in operation, stable in action, safe and reliable, and can bear larger load.

Description

Pneumatic underground hoisting device for monorail crane

Technical Field

The invention relates to the technical field of pneumatic underground hoisting devices for monorail cranes, in particular to a pneumatic underground hoisting device for a monorail crane.

Background

At present, a monorail crane is increasingly popularized and applied as efficient underground auxiliary transportation equipment; the important link of the transportation equipment using the monorail hoist is hoisting.

However, the existing hoisting equipment usually matched with the monorail crane generally comprises a pneumatic hoisting beam, a hydraulic oil cylinder hoisting beam and a manual hoisting beam. The tonnage of the manual hoisting beam is limited, time and labor are wasted, and certain potential safety hazards exist; the general hydraulic lifting beam has larger volume, needs to occupy larger and higher space of a roadway, limits the lifting height, and is completely unnecessary to be provided with a large-scale hydraulic lifting beam for some relatively light lifting objects in some smaller mines; therefore, the existing requirements are not met, and a pneumatic underground hoisting device for a monorail crane is provided for the requirements.

Disclosure of Invention

The invention aims to provide a pneumatic underground hoisting device for a monorail crane, which aims to solve the problems that the general hydraulic hoisting beam in the background technology has larger volume, needs to occupy larger and higher space of a roadway, limits the hoisting height, and is completely unnecessary to be provided with a large-scale hydraulic hoisting beam for relatively light hoisted objects in smaller mines.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a single track hangs with pneumatic hoist device in pit, includes the walking dolly, the walking dolly has two, two the bottom of walking dolly is connected with through ball pivot connecting device and bears the crossbeam, pneumatic block is installed to the intermediate position that bears the crossbeam, pneumatic block and manual valve piece electric connection, pneumatic block's surface is equipped with two hoisting chains, the below that bears the crossbeam both ends is equipped with movable pulley device, movable pulley device's inside swing joint has the sprocket, pneumatic block's hoisting chain passes movable pulley device's sprocket and the other end and fixes the surface at bearing the crossbeam.

Preferably, the bottom of the movable pulley device is provided with a hook.

Preferably, the pneumatic hoist, the lifting chain and the movable pulley device form a linkage mechanism.

Compared with the prior art, the invention has the beneficial effects that:

1. the lifting beam structure mainly utilizes the principle of a movable pulley, combines a pneumatic hoist to form a set of linkage mechanism, realizes the rolling up or releasing of a chain by the pneumatic hoist by controlling a manual control valve block, thereby realizing the lifting and the lowering of the load, has the maximum lifting load of 8 tons, and has the advantages of strong lifting capacity, convenient operation, short transportation time, safety, reliability and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic cross-sectional view of the present invention B-B;

fig. 3 is a schematic structural view of the novel movable pulley of the invention.

In the figure: 1. a walking trolley; 2. a load bearing beam; 3. a spherical hinge connection device; 4. a pneumatic hoist; 5. a hoisting chain; 6. a movable pulley device; 7. and a manual control valve block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 3, an embodiment of the present invention includes: a pneumatic underground hoisting device for a monorail crane comprises two walking trolleys 1, wherein the bottom ends of the two walking trolleys 1 are connected with a bearing cross beam 2 through a spherical hinge connecting device 3, spherical connection is adopted, the rotational freedom degree of the cross beam is increased, and displacement changes in the horizontal direction and the vertical direction of the cross beam can be automatically compensated and adjusted according to the change of the gravity center of the load when the cross beam turns horizontally and vertically, so that the load inclination and shaking caused by unstable gravity center are effectively avoided, the spherical connection not only increases the freedom degree, but also can constantly keep surface contact, and the stability of a mechanism is increased;

pneumatic hoist 4 is installed to the intermediate position of load-bearing beam 2, pneumatic hoist 4 and manual valve block 7 electric connection, manual valve block 7 is through the lifting and the locking of pneumatic pipeline control pneumatic hoist 4, the surface of pneumatic hoist 4 is equipped with two hoisting chains 5, the below at load-bearing beam 2 both ends is equipped with movable pulley device 6, the inside swing joint of movable pulley device 6 has the sprocket, hoisting chain 5 of pneumatic hoist 4 passes the sprocket of movable pulley device 6 and the other end is fixed on the surface of load-bearing beam 2, the mechanism of movable pulley group is adopted at both ends, moreover, the steam generator is simple in structure, the tonnage of lifting by crane has been doubled simultaneously.

Further, the bottom of the movable pulley device 6 is provided with a hook.

Furthermore, the pneumatic hoist 4, the hoisting chain 5 and the movable pulley device 6 form a linkage mechanism to control the lifting and the falling of the heavy-load goods.

The working principle is as follows: when the monorail crane is used, when the monorail crane runs to the position above equipment (such as a human vehicle or a material box) to be carried, the hoisting chain 5 is adjusted, hooks on the hoisting chain 5 are fixed to the equipment to be carried, the manual control valve block 7 is controlled, the hoisting chain 5 is wound up by the pneumatic hoist 4, the hoisting chain 5 passes through the movable pulley device 6, the other end of the hoisting chain 5 is fixed to one side of the bearing cross beam 2, and the hoisting chain 5 below the bearing cross beam 2 is connected with the equipment to be carried and lifted along with the movable pulley device. Because the movable pulley device 6, the pneumatic hoist 4 and the hoisting chain 5 form a set of linkage device, the pneumatic hoist 4 only bears 1/2 of the load weight, the manual control valve block 7 is operated reversely, and the equipment descends along with the manual control valve block; and when the handle of the manual control valve block 7 is released, the handle automatically returns to the middle position, the pneumatic hoist 4 is automatically locked, and the hoisting chain 5 is automatically fixed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a single track hangs with pneumatic hoist device in pit, includes walking dolly (1), its characterized in that: the walking trolley is characterized in that the walking trolley (1) is provided with two walking trolleys, the bottom end of each walking trolley (1) is connected with a bearing beam (2) through a spherical hinge connecting device (3), a pneumatic hoist (4) is installed at the middle position of each bearing beam (2), the pneumatic hoist (4) is electrically connected with a manual control valve block (7), two hoisting chains (5) are arranged on the surface of each pneumatic hoist (4), movable pulley devices (6) are arranged below two ends of each bearing beam (2), a chain wheel is movably connected inside each movable pulley device (6), and the hoisting chains (5) of the pneumatic hoist (4) penetrate through the chain wheel of each movable pulley device (6) and the other end of each hoisting chain is fixed on the surface of each bearing beam (2).

2. A pneumatic downhole hoisting device for monorail cranes, as defined in claim 1, wherein: and a hook is arranged at the bottom of the movable pulley device (6).

3. A pneumatic downhole hoisting device for monorail cranes, as defined in claim 1, wherein: the pneumatic hoist (4), the hoisting chain (5) and the movable pulley device (6) form a linkage mechanism.