CN218025100U - Coal mill bearing box disintegration hoisting and moving device - Google Patents

Abstract

The coal mill bearing box is disassembled and hoisted by the moving device. The disassembly inspection bearing of the pinion bearing box of the steel ball roller coal mill in the thermal power plant is an overhaul process commonly used for overhaul and maintenance work, the pinion bearing box is generally influenced by the overall structure of the coal mill, the space is narrow and small, and the overhaul space is almost not available. The utility model provides a coal pulverizer bearing box disintegration hoisting mobile device, its constitution includes: the bearing box comprises a fixed bottom plate (1), wherein a group of threaded holes (2) are formed in the fixed bottom plate, the threaded holes are fixedly connected with a bottom plate which is pre-installed on a bearing box foundation through bolts, the fixed bottom plate is vertically connected with a fixed sleeve (3), balls (4) are installed in the fixed sleeve, a support rod (5) is installed above the balls, and part of rod faces of the support rod are inserted into the fixed sleeve; the supporting rod is vertically connected with the arm-of-force rod (6), and a triangular support (7) is connected between the arm-of-force rod and the supporting rod. The utility model discloses be applied to the coal pulverizer component that thermal power used and remove.

Description

Coal mill bearing box disintegration hoisting mobile device

The technical field is as follows:

the utility model relates to a coal pulverizer bearing box disintegrates and lifts by crane mobile device.

The background art comprises the following steps:

the disassembly inspection bearing of the pinion bearing box of the steel ball roller coal mill in the thermal power plant is an overhaul process commonly used for overhaul and maintenance work, the pinion bearing box is generally influenced by the overall structure of the coal mill, the space is narrow and small, and the overhaul space is almost not available. The pinion bearing box of the D-10D type steel ball roller coal mill is designed and installed in the concave space, and is limited by the space, a disassembly hoisting device cannot be arranged, and the disassembly maintenance of the pinion bearing box is very difficult; when carrying out this bearing box disintegration maintenance process technology, often need the manpower lifting to remove, the heavy bearing box upper cover of about 50 kilograms needs two people cooperation operations at least, has very big potential safety hazard, operates improper and takes place the personal and equipment injury easily.

The invention content is as follows:

the utility model aims at providing a coal pulverizer bearing box disintegrates and lifts by crane mobile device.

The above purpose is realized by the following technical scheme:

the utility model provides a coal pulverizer bearing box disintegration hoisting mobile device, its constitution includes: the fixing base plate is provided with a group of threaded holes, the threaded holes are fixedly connected with a base plate which is pre-installed on a bearing box foundation through bolts, the fixing base plate is vertically connected with a fixing sleeve, balls are installed in the fixing sleeve, a support rod is installed above the balls, and part of the rod surface of the support rod is inserted into the fixing sleeve; the support rod is vertically connected with the arm-force rod, a triangular support is connected between the arm-force rod and the support rod, the support rod and the arm-force rod form a rotatable arm-force rod, and the support rod, the arm-force rod and the triangular support are of an integrated structure; the end of the arm lever is connected with a track limiting ring for preventing the chain from slipping, and the top of the supporting rod is connected with a chain block hanging ring.

The coal mill bearing box is disassembled and the ball arranged in the fixed sleeve of the lifting moving device is contacted with the fixed sleeve and the rotatable arm lever in a spherical mode.

The coal mill bearing box is disassembled and the lifting moving device is characterized in that a lifting sling chain is arranged on the chain block suspension loop.

Has the beneficial effects that:

1. the utility model discloses the welding of fixed sleeving bottom sets up the bottom plate with the bolt fastening, sets up the track spacing ring that hangs the chain block link and prevent the chain slippage on the rotatable armed lever, and the ball that sets up in the cover pipe contacts with the sphere pattern with fixed sleeving and rotatable armed lever, and friction reduction plays to lift by crane the removal in-process at bearing box disintegration and has both played the supporting role, and nimble rotatory laborsaving simultaneously again accomplishes the bearing box disintegration and lifts by crane the removal work.

2. The utility model discloses when using, after bearing box disintegration pulling jack heavy objects such as bearing box upper cover, can relax the application of force and pull rotatable power armed lever and turn to the aversion and move in safe and reliable's position, make things convenient for work to develop.

3. The utility model has the advantages of it is following:

(1) Simple structure, simple to operate rotates in a flexible way, is not limited by the space, uses the back safe laborsaving, has reduced intensity of labour, has eliminated the safety risk.

(2) The split structure is convenient to be processed and manufactured, and the split structure is convenient to be disassembled, installed and stored.

(3) Convenient operation, no space limitation, safety and reliability.

(4) The rotary steering device is convenient to rotate and shift, saves labor, reduces labor force, improves working efficiency and reduces labor intensity.

(5) Wide application range, and is suitable for other small components which are limited by space and are not easy to lift and move

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 1.

Fig. 4 is a schematic diagram of the use configuration of fig. 1.

In the figure: 1. the device comprises a fixed bottom plate, 2, a threaded hole, 3, a fixed sleeve, 4, a ball, 5, a support rod, 6, a force arm rod, 7, a triangular support, 8, a track limiting pull ring, 9, a chain block suspension loop, 10 and a hoisting suspension chain.

In the figure:

the specific implementation mode is as follows:

example 1:

the utility model provides a coal pulverizer bearing box disintegrates and lifts by crane mobile device which constitutes and includes: the bearing box comprises a fixed bottom plate 1, wherein a group of threaded holes 2 are formed in the fixed bottom plate, the threaded holes are fixedly connected with a bottom plate which is pre-installed on a bearing box foundation through bolts, the fixed bottom plate is vertically connected with a fixed sleeve 3, balls 4 are installed in the fixed sleeve, a support rod 5 is installed above the balls, and part of rod faces of the support rod are inserted into the fixed sleeve; the support rod is vertically connected with the arm-of-force rod 6, a triangular support 7 is connected between the arm-of-force rod and the support rod, the support rod and the arm-of-force rod form a rotatable arm-of-force rod, and the support rod, the arm-of-force rod and the triangular support are of an integrated structure; the end of the arm-force rod is connected with a track limiting ring 8 for preventing the chain from slipping, and the top of the supporting rod is connected with a chain block hanging ring 9.

Example 2:

according to the coal mill bearing box disassembly hoisting and moving device in the embodiment 1, the balls arranged in the fixed sleeve are in spherical contact with the fixed sleeve and the rotatable force arm rod.

Example 3:

according to the coal mill bearing box disassembly hoisting and moving device in the embodiment 1 or 2, the hoisting hanging chain 10 is installed on the chain block suspension loop.

Specific instructions for use of the device:

(1) The structure of the coal mill bearing box disassembly hoisting and moving device is as follows: the device consists of four parts, namely a fixed sleeve, a ball, a rotatable arm lever and a hoisting sling chain (finished product). When the lifting device is used, the fixed sleeve and a base plate which is pre-arranged on a bearing box foundation are fixed by bolts, then the balls are arranged in the fixed sleeve, then the rotatable arm lever is sleeved in the fixed sleeve, and a proper lifting chain is selected for matching use during lifting.

(2) The fixed sleeve can have the steel pipe preparation, and the bottom sets up the welding and has the bolt fastening bottom plate, and the installation of being convenient for is kept with dismantling, and bottom plate thickness is not less than 10mm, and the bolt hole can set up as required to it is firm to fix as the standard, generally is no less than two.

(3) The rotatable force arm rod consists of a support rod and a force arm rod, the support rod is made of steel pipes or round steel, a hanging ring for hanging the chain block is arranged at the top, the diameter of the hanging ring is smaller than the inner diameter of the fixed sleeve, a clearance of 1-2 mm is generally reserved between the rotatable force arm rod and the inner hole of the fixed sleeve, the assembly and the rotation are convenient, and the assembly and the rotation are not inclined; the end part of the force arm rod is provided with a track limiting ring for preventing the chain block load chain from slipping, and the triangular support is not arranged for ensuring the rigidity of the force arm rod. The rotatable force arm lever components are all welded and connected,

(4) The ball steel ball, the ball of optional old and useless bearing, the fixed sleeve is arranged in to the size and the diameter is not less than bracing piece basal area undersize, simultaneously can rotate in a flexible way can, also can purchase the steel ball alone as required.

(5) The matched chain block is selected according to the size of a lifted heavy object, and is generally 0.5T-2T.

(6) The manufacturing size, the size and the rigidity of the device can be selected according to actual requirements.

(7) When the bearing box is disassembled and reassembled, and after heavy objects such as the upper cover of the bearing box and the like are hoisted, force can be easily applied to pull the rotatable force arm lever to shift to a safe and reliable position, so that the work is convenient to develop.

Claims (3)

1. The utility model provides a coal pulverizer bearing box disintegration hoisting mobile device, its constitution includes: fixed bottom plate, characterized by: the fixed bottom plate is provided with a group of threaded holes, the threaded holes are fixedly connected with a bottom plate which is pre-installed on a bearing box foundation through bolts, the fixed bottom plate is vertically connected with a fixed sleeve, balls are installed in the fixed sleeve, a support rod is installed above the balls, and part of rod faces of the support rod are inserted into the fixed sleeve;

the support rod is vertically connected with the arm-force rod, a triangular support is connected between the arm-force rod and the support rod, the support rod and the arm-force rod form a rotatable arm-force rod, and the support rod, the arm-force rod and the triangular support are of an integrated structure;

the end of the arm-force rod is connected with a track limiting ring for preventing the chain from slipping, and the top of the supporting rod is connected with a chain block suspension ring.

2. The coal pulverizer bearing housing disassembly lifting and moving device of claim 1, characterized in that: the ball arranged in the fixed sleeve is in spherical contact with the fixed sleeve and the rotatable force arm rod.

3. The coal pulverizer bearing housing disassembly lifting and moving device of claim 1, wherein: and a hoisting sling chain is hung on the inverted chain hanging ring.

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