CN213294430U

CN213294430U - Device for dismounting and hoisting bushing

Info

Publication number: CN213294430U
Application number: CN202022186151.4U
Authority: CN
Inventors: 史彦彬; 高建红; 朱旭东; 张中华; 史立文; 柳鹏伟; 王文; 高艳菲; 杨学文; 高永亮
Original assignee: Jinchuan Group Co Ltd
Current assignee: Jinchuan Group Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-05-28
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a device for removing and hoisting a bush, which comprises a supporting plate, a first handle, a second handle, a spring assembly and a lifting lug, wherein the lifting lug is fixedly connected with the top of the supporting plate, U-shaped grooves are respectively processed at the two ends of the supporting plate, the first handle comprises a first connecting rod and a first fixed rod, the second handle comprises a second connecting rod and a second fixed rod, the upper part of the first fixed rod is sleeved on the surface of the lower part of the first connecting rod, and the upper part of the second fixed rod is sleeved on the surface of the lower part of the second connecting rod; the bottom ends of the first fixing rod and the second fixing rod are clamping hooks, the upper part of the first connecting rod is connected with one U-shaped groove, and the upper part of the second connecting rod is connected with the other U-shaped groove; the spring assembly is installed between the first fixing rod and the second fixing rod. The utility model has simple structure, easy realization and convenient operation; the detachability of the spring assembly also further improves the applicability of the device when removing bushings of different specifications and sizes.

Description

Device for dismounting and hoisting bushing

Technical Field

The utility model belongs to ore dressing system ore crushing equipment maintenance field, concretely relates to device that bush was demolishd and was hoisted.

Background

In the maintenance process of ore crushing equipment of an ore dressing system, the transmission system of the equipment has the fault of locking of large and small bushings due to insufficient lubrication, improper operation or excessive iron and the like of the equipment. In the traditional process of removing the large and small bushings, screw taps are used for uniformly tapping threaded holes (the number of the threaded holes is usually 3) on the upper surfaces of the large and small bushings respectively, the screw taps are screwed in the screw taps, the lifting rigging and the screw taps are locked by matching with a travelling crane or an electric single-beam crane in a factory building, and the large and small bushings are slowly and respectively lifted out. The traditional dismounting and hoisting mode needs to use different screw taps for repeated tapping, is complex in details, high in labor intensity, low in working efficiency, and capable of seriously wasting manpower and material resources, has certain dangerousness in the operation process, particularly in the bushing hoisting process, and can not realize safe and efficient overhaul operation because the hoisting rigging is not uniformly distributed and is unbalanced in stress and possibly broken to cause object striking accidents in the hoisting rigging.

SUMMERY OF THE UTILITY MODEL

To big among the prior art, little bush demolish with hoist and mount in-process danger coefficient high, the operation requirement is high, work efficiency is low, work is loaded down with trivial details, extravagant manpower and materials scheduling problem, the utility model provides a device that the bush was demolishd and hoist.

The utility model adopts the technical proposal that:

a device for removing and hoisting a bush is characterized by comprising a supporting plate (1), a first handle, a second handle, a spring assembly (3) and lifting lugs (5), wherein the lifting lugs (5) are fixedly connected with the top of the supporting plate (1), U-shaped grooves are respectively processed at two ends of the supporting plate (1), the first handle comprises a first connecting rod (11) and a first fixing rod (2), the second handle comprises a second connecting rod (6) and a second fixing rod (7), the upper part of the first fixing rod (2) is sleeved on the surface of the lower part of the first connecting rod (11), and the upper part of the second fixing rod (7) is sleeved on the surface of the lower part of the second connecting rod (6); the bottom ends of the first fixing rod (2) and the second fixing rod (7) are respectively a clamping hook, the upper part of the first connecting rod (11) is connected with one U-shaped groove, and the upper part of the second connecting rod (6) is connected with the other U-shaped groove; spring assembly (3) are including telescopic tube (8), first pull rod (10), second pull rod (4), compression spring (9) suit is on the surface of telescopic tube (8), and the one end and first pull rod (10) of telescopic tube (8) are connected, and the other end and the second pull rod (4) of telescopic tube (8) are connected, and first pull rod (10) are connected with first dead lever (2), and second pull rod (4) are connected with second dead lever (7).

The device for removing and hoisting the bush is characterized in that external threads are processed on the lower portion of the first connecting rod (11) and the lower portion of the second connecting rod (6), and blind holes with internal threads are processed on the upper portion of the first fixing rod (2) and the upper portion of the second fixing rod (7).

The device for dismounting and hoisting the bush is characterized in that the upper part of the first connecting rod (11) is connected with one U-shaped groove through a hexagon bolt, and the upper part of the second connecting rod (6) is connected with the other U-shaped groove through a hexagon bolt.

The device for removing and hoisting the bush is characterized in that a groove is formed in the center of the top of the supporting plate (1) in advance, and the lifting lug (5) is welded to the center of the top of the supporting plate (1) provided with the groove.

The device for removing and hoisting the bush is characterized in that a nut is welded at the top end of the second fixing rod (7), and a nut is mounted at an external thread processed at the lower part of the second connecting rod (6); the top end of the first fixing rod (2) is welded with a nut, and the nut is installed at the external thread processed at the lower part of the first connecting rod (11).

The device for removing and hoisting the bush is characterized in that the bending direction of the hook at the bottom end of the first fixing rod (2) and the bending direction of the hook at the bottom end of the second fixing rod (7) both deviate from the spring assembly (3).

The utility model discloses relative prior art has following beneficial effect: the utility model provides an auxiliary of adjustable handle length and bottom pothook degree of opening and shutting demolishs and hoisting machine constructs, utilizes small-size combination formula component to replace traditional maintenance method, device simple structure, easily realization and the operation of being convenient for have solved the difficult problem that is not convenient for demolish after the bush locking. Meanwhile, the detachability of the spring assembly further improves the applicability of the device when the bushings of different specifications and sizes are removed, avoids the waste of resources in the maintenance process, and can obviously improve the maintenance operation efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the operation process of the present invention;

FIG. 3 is a schematic view of a second connecting rod of the present invention;

fig. 4 is a schematic view of the second fixing rod of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1-4, the utility model discloses a device that bush was demolishd and was hoisted, including backup pad 1, first handle, second handle, spring assembly 3, lug 5, the central point at the top of backup pad 1 puts and sets up the groove in advance to make annular lug 5 can bear bigger tensile stress, lug 5 is the U-shaped, the open position department of lug 5 with set up the slopeThe center position of the top of the supporting plate 1 behind the opening is welded to ensure that the stress is uniform during hoisting. U-shaped grooves are respectively processed at two ends of the supporting plate 1, and the two U-shaped grooves are located at two ends of the supporting plate 1 which are not adjacent to each other. The first handle includes head rod 11 and first dead lever 2, and the second handle includes second connecting rod 6 and second dead lever 7, and the lower part of head rod 11, the lower part of second connecting rod 6 all processes there is the external screw thread, and the upper portion of head rod 2, the upper portion of second dead lever 7 all process the blind hole of in-band screw thread, and the upper portion suit of first dead lever 2 is in the surface of the lower part of head rod 11, and the upper portion suit of second dead lever 7 is in the surface of the lower part of second connecting rod 6. A nut with the same aperture as that of a blind hole with internal threads processed at the upper part of the first fixing rod 2 is welded at the top end of the first fixing rod 2, and a nut is installed at an external thread processed at the lower part of the first connecting rod 11; the top end of the second fixing rod 7 is welded with a nut with the same aperture as the blind hole with internal threads processed on the upper part of the second fixing rod 7, and the nut is installed on the external threads processed on the lower part of the second connecting rod 6. The nut of the fixing rod and the nut of the connecting rod form interlocking, the length of the handle is determined, and the wire withdrawing phenomenon in the operation process is prevented. The length of the handle 2 can be adjusted according to the depth of the bushing. The bottom ends of the first fixing rod 2 and the second fixing rod 7 are respectively provided with a clamping hook, the upper part of the first connecting rod 11 is bent, the upper part of the second connecting rod 6 is bent, and after the first fixing rod 2 is connected with the first connecting rod 11, the bending direction of the upper part of the first connecting rod 11 is opposite to the direction of the clamping hook at the bottom end of the first fixing rod 2; after the second fixing rod 7 is connected with the second connecting rod 6, the bending direction of the upper part of the second connecting rod 6 is opposite to the direction of the hook at the bottom end of the second fixing rod 7. Bolt holes are machined in the side faces of the two U-shaped grooves, connecting holes with internal threads are machined in the upper portions of the first connecting rods 11 and the upper portions of the second connecting rods 6, the connecting holes with the internal threads machined in the upper portions of the first connecting rods 11 are connected with the bolt holes in one U-shaped groove through hexagon bolts, and the connecting holes with the internal threads machined in the upper portions of the second connecting rods 6 are connected with the bolt holes in the other U-shaped groove through hexagon bolts. The clamping hook and the second fixing part at the bottom end of the first fixing rod 2 are adjusted by controlling the first handle and the second handleThe opening degree of the bottom end hook of the rod 7. Spring assembly 3 is a components of a whole that can function independently structure's built-up member, the adjustment and the dismantlement of the spring model of being convenient for, spring assembly 3 includes telescopic tube 8, first pull rod 10, second pull rod 4, compression spring 9 suit is on telescopic tube 8's surface, telescopic tube 8's one end and first pull rod 10 are connected, telescopic tube 8's the other end and second pull rod 4 are connected, first pull rod 10 is connected with first dead lever 2, second pull rod 4 is connected with second dead lever 7. The spring assembly 3 can select different types of telescopic sleeves and compression springs to be suitable for bushings of various specifications. After the spring assembly 3 is connected and fixed with the first handle and the second handle, the first handle and the second handle are applied with a force F shown in figure 2₁、F₂The compression spring 9 and the telescopic sleeve 8 are compressed under force by external force in the direction; and (3) removing the external force, and restoring the compression spring 9 and the telescopic sleeve 8 to the original state. The bending direction of the hook at the bottom end of the first fixing rod 2 and the bending direction of the hook at the bottom end of the second fixing rod 7 are both deviated from the spring assembly 3.

According to the depth and the diameter of the bush, the lengths of the first handle and the second handle are confirmed, and the locking nut is locked after the connecting rod and the fixing rod are installed. At the moment, the handle is pulled along the opposite direction, so that when the hook below the handle enters the interior of the bushing to be disassembled and reaches the bottom, the handle is loosened, the spring assembly loses the external force effect and is restored to the original state from the compressed state, and the hook supports the bottom of the bushing. After a sling with a proper specification is selected and locked with the lifting lug, the lining to be dismantled is slowly lifted out in cooperation with a factory building hoisting device, placed on the lining support and supported in place.

When the handle is disassembled, the handle is pulled in the opposite direction, the clamping hook below the handle is separated from the bushing, the handle is lifted from the inside of the bushing by matching with a factory building hoisting device and is placed to a specified position, and the overhauling process is finished.

Claims

1. A device for removing and hoisting a bush is characterized by comprising a supporting plate (1), a first handle, a second handle, a spring assembly (3) and lifting lugs (5), wherein the lifting lugs (5) are fixedly connected with the top of the supporting plate (1), U-shaped grooves are respectively processed at two ends of the supporting plate (1), the first handle comprises a first connecting rod (11) and a first fixing rod (2), the second handle comprises a second connecting rod (6) and a second fixing rod (7), the upper part of the first fixing rod (2) is sleeved on the surface of the lower part of the first connecting rod (11), and the upper part of the second fixing rod (7) is sleeved on the surface of the lower part of the second connecting rod (6); the bottom ends of the first fixing rod (2) and the second fixing rod (7) are respectively a clamping hook, the upper part of the first connecting rod (11) is connected with one U-shaped groove, and the upper part of the second connecting rod (6) is connected with the other U-shaped groove; spring assembly (3) are including telescopic tube (8), first pull rod (10), second pull rod (4), compression spring (9) suit is on the surface of telescopic tube (8), and the one end and first pull rod (10) of telescopic tube (8) are connected, and the other end and the second pull rod (4) of telescopic tube (8) are connected, and first pull rod (10) are connected with first dead lever (2), and second pull rod (4) are connected with second dead lever (7).

2. The liner removing and hoisting device according to claim 1, wherein the lower part of the first connecting rod (11) and the lower part of the second connecting rod (6) are both provided with external threads, and the upper part of the first fixing rod (2) and the upper part of the second fixing rod (7) are both provided with blind holes with internal threads.

3. Device for bush removal and hoisting according to claim 1, characterized in that the upper part of the first connecting rod (11) is connected with one U-shaped groove by means of a hexagon bolt, and the upper part of the second connecting rod (6) is connected with the other U-shaped groove by means of a hexagon bolt.

4. The device for removing and hoisting the bush as recited in claim 1, wherein the center position of the top of the support plate (1) is pre-beveled, and the lifting lug (5) is welded to the center position of the top of the support plate (1) after beveling.

5. The device for removing and hoisting the bush as recited in claim 2, wherein a nut is welded on the top end of the second fixing rod (7), and a nut is installed on an external thread processed on the lower part of the second connecting rod (6); the top end of the first fixing rod (2) is welded with a nut, and the nut is installed at the external thread processed at the lower part of the first connecting rod (11).

6. The apparatus for removing and hoisting a bush according to claim 1, characterized in that the bending direction of the hook at the bottom end of the first fixing rod (2) and the bending direction of the hook at the bottom end of the second fixing rod (7) are both away from the spring assembly (3).