CN219444968U - Cold-drawing and disassembling device for chemical wear-resistant and corrosion-resistant pump shaft sleeve - Google Patents
Cold-drawing and disassembling device for chemical wear-resistant and corrosion-resistant pump shaft sleeve Download PDFInfo
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- CN219444968U CN219444968U CN202320655116.3U CN202320655116U CN219444968U CN 219444968 U CN219444968 U CN 219444968U CN 202320655116 U CN202320655116 U CN 202320655116U CN 219444968 U CN219444968 U CN 219444968U
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- shaft sleeve
- bearing
- resistant
- adjusting screw
- cold
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model provides a chemical wear-resistant corrosion-resistant pump shaft sleeve cold-drawing and disassembling device which comprises an annular bracket and a bearing base, wherein the annular bracket is arranged on the annular bracket; the bearing base is connected with the annular bracket through a plurality of bearing rods, a plurality of adjusting screw rods which are symmetrically distributed are arranged on the annular bracket, and a taper bearing bush is arranged at the inward end of each adjusting screw rod; the bearing base is provided with a hydraulic jack, and a shaft sleeve is arranged between the hydraulic jack and the bearing base; the jacking cylinder of the hydraulic jack props against a shaft arranged in the shaft sleeve, the shaft sleeve is sleeved with another shaft sleeve, and the shaft sleeve sleeved outside the shaft sleeve is embraced by the bearing bush with taper through the adjusting screw rod. According to the utility model, heating or hot cutting is not needed, and power is transmitted through the pressure of oil in the hydraulic jack, so that axial cold drawing separation of the shaft and the shaft sleeve is realized.
Description
Technical Field
The utility model relates to a cold-drawing and disassembling device for a chemical wear-resistant and corrosion-resistant pump shaft sleeve, and belongs to the technical field of chemical mechanical equipment.
Background
The production process involves the transportation of liquid ammonia, phosphoric acid, sulfuric acid and various intermediate materials, and the transportation of the materials is not separated from the use of chemical engineering wear-resistant and corrosion-resistant pumps.
The general sealing mode adopted between the pump shell and the shaft in the using process of the chemical wear-resistant and corrosion-resistant pump is two: one is a mechanical seal and one is a packing seal. However, in any sealing method, in order to protect the service life of the shaft, a shaft sleeve is mounted on the shaft at a sealing position to protect the shaft, so that the shaft sleeve becomes a wearing part and is often replaced.
In the field of chemical machinery maintenance at present, a chemical wear-resistant corrosion-resistant pump is convenient to detach, clearance fit or transition fit is generally adopted between the chemical wear-resistant corrosion-resistant pump and a shaft, and the clearance fit between the clearance fit shaft and the shaft sleeve is filled with materials in the long-term use process, so that when the shaft sleeve is replaced, the shaft sleeve is difficult to pull out, a method of destructively cutting out the shaft sleeve or heating to pull out the shaft sleeve is generally adopted, but both methods relate to hot cutting or heating, the surface of the shaft is often damaged or the shaft is heated to be bent and deformed in the operation process, and then the shaft is scrapped or the vibration value is increased in the use process due to the fact that the pump shaft circle is jumped up, so that equipment accidents are caused.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a cold-drawing and disassembling device for a chemical wear-resistant and corrosion-resistant pump shaft sleeve, which can realize the protective disassembling of the shaft sleeve without heating or hot cutting.
The utility model is realized by the following technical scheme.
The utility model provides a cold-drawing and disassembling device for a chemical wear-resistant and corrosion-resistant pump shaft sleeve, which comprises an annular bracket and a bearing base; the bearing base is connected with the annular bracket through a plurality of bearing rods, a plurality of adjusting screw rods which are symmetrically distributed are arranged on the annular bracket, and a taper bearing bush is arranged at the inward end of each adjusting screw rod; the bearing base is provided with a hydraulic jack, and a shaft sleeve is arranged between the hydraulic jack and the bearing base; the jacking cylinder of the hydraulic jack props against a shaft arranged in the shaft sleeve, the shaft sleeve is sleeved with another shaft sleeve, and the shaft sleeve sleeved outside the shaft sleeve is embraced by the bearing bush with taper through the adjusting screw rod.
The surface of the annular support is provided with a plurality of annular support bolt holes which are symmetrically distributed, and the adjusting screw rod is connected with the annular support through the annular support bolt holes.
The bearing bush with the taper is provided with bearing bush surface bolt holes, and the adjusting screw rod is connected with the bearing bush with the taper through the bearing bush surface bolt holes.
The annular support, the bearing rod and the shaft sleeve form a bearing support structure.
The adjusting screw rod, the bearing bush with taper and the annular support form a shaft sleeve holding adjusting mechanism.
The hydraulic jack, the shaft sleeve and the shaft form a cold-drawing force mechanism.
The bearing base is round, square or other plane shapes.
The utility model has the beneficial effects that: the axial cold-drawing separation of the shaft and the shaft sleeve is realized by transmitting power through the pressure of oil in the hydraulic jack without heating or hot cutting.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is a schematic view of the structure of the bearing shell surface bolt hole of the present utility model;
in the figure: 11-first adjusting screw rod, 12-second adjusting screw rod, 13-third adjusting screw rod, 14-fourth adjusting screw rod, 21-first taper bearing bush, 22-second taper bearing bush, 23-third taper bearing bush, 24-fourth taper bearing bush, 3-annular bracket, 4-bearing rod, 5-bearing base, 6-hydraulic jack, 7-shaft sleeve, 8-shaft, 9-annular bracket bolt hole and 10-bearing bush surface bolt hole.
Detailed Description
The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.
Example 1
The cold-drawing and disassembling device for the chemical wear-resistant and corrosion-resistant pump shaft sleeve as shown in figures 1-3 comprises an annular bracket 3 and a bearing base 5; the bearing base 5 is connected with the annular bracket 3 through a plurality of bearing rods 4, a plurality of adjusting screw rods which are symmetrically distributed with each other are arranged on the annular bracket 3, and a taper bearing bush is arranged at the inward end of each adjusting screw rod; the bearing base 5 is provided with a hydraulic jack 6, and a shaft sleeve 7 is arranged between the hydraulic jack 6 and the bearing base 5; the top cylinder of the hydraulic jack 6 props against a shaft 8 arranged in a shaft sleeve 7, another shaft sleeve 7 is sleeved outside the shaft 8, and the shaft sleeve 7 sleeved outside the shaft 8 is held by a bearing bush with taper through an adjusting screw rod.
The surface of the annular support 3 is provided with a plurality of annular support bolt holes 9 which are symmetrically distributed, and the adjusting screw rod is connected with the annular support 3 through the annular support bolt holes 9 respectively.
The bearing bush with taper is provided with bearing bush surface bolt holes 10, and the adjusting screw rod is connected with the bearing bush with taper through the bearing bush surface bolt holes 10.
The annular support 3, the bearing rod 4 and the shaft sleeve 7 form a bearing support structure, and the bearing support structure mainly bears the support of axial force of the shaft sleeve 7 and the axial force of the axial 8 of the hydraulic jack 6 for axially fixing the bearing base 5.
The adjusting screw rod, the bearing bush with taper and the annular bracket 3 form a shaft sleeve holding adjusting mechanism.
The hydraulic jack 6, the shaft sleeve 7 and the shaft 8 form a cold-drawing force mechanism.
The bearing base 5 is round, square or other plane shape.
Example 2
Four ring support bolt holes 9 which are symmetrically distributed are formed in the surface of the ring support 3, and a first adjusting screw 11, a second adjusting screw 12, a third adjusting screw 13 and a fourth adjusting screw 14 are respectively connected with the ring support 3 through the ring support bolt holes 9.
The first taper bearing bush 21, the second taper bearing bush 22, the third taper bearing bush 23 and the fourth taper bearing bush 24 are respectively connected with the second adjusting screw 12, the third adjusting screw 13, the fourth adjusting screw 14 and the first adjusting screw 11, and the expansion and contraction of the taper bearing bushes are adjusted through the adjusting screws.
Specifically, four taper bearing bushes are respectively adjusted and clasped on the surface of the shaft sleeve 7 sleeved outside the shaft 8 through the adjusting screw rod.
Preferably, the power is transmitted through the pressure of the oil in the hydraulic jack 6, so that the axial cold-drawing separation of the shaft 8 and the shaft sleeve 7 sleeved outside the shaft 8 is realized.
The bearing rod 4 is connected with the annular bracket 3 through welding, and the bearing rod 4 is kept to be symmetrical at the center of the surface of the annular bracket 3, so that the stress is uniform.
The bearing base 5 is connected with the bearing rod 4 through welding, and the bearing rod 4 is kept to be symmetrical at the center of the surface of the bearing base 5, so that the stress is uniform.
Example 3
The device is sleeved on the surface of the shaft sleeve to be pulled out, the inner curved surface of the bearing bush with taper is tightly attached to the surface of the shaft sleeve, the expansion and contraction of the adjusting screw rod are adjusted, the bearing bush with taper tightly holds the outer surface of the shaft sleeve, then the bottom of the hydraulic jack is aligned with the central part of the bearing base, the top cylinder of the hydraulic jack is aligned with the tail end of the shaft sleeve to be pulled out, the hydraulic jack provides axial force for pulling out the shaft sleeve, and meanwhile, in the pulling out process, the locking force on the shaft sleeve can be provided because the surface of the bearing bush with taper is provided, and the hydraulic jack is always ejected until the shaft sleeve is completely separated from the shaft.
Claims (7)
1. The utility model provides a wear-resisting corrosion-resistant pump shaft sleeve cold drawing of chemical industry is demolishd device, includes annular support (3) and load-bearing base (5), its characterized in that: the bearing base (5) is connected with the annular bracket (3) through a plurality of bearing rods (4), a plurality of adjusting screw rods which are symmetrically distributed with each other are arranged on the annular bracket (3), and a taper bearing bush is arranged at the inward end of each adjusting screw rod; the bearing base (5) is provided with a hydraulic jack (6), and a shaft sleeve (7) is arranged between the hydraulic jack (6) and the bearing base (5); the jacking cylinder of the hydraulic jack (6) jacks a shaft (8) arranged in the shaft sleeve (7), the shaft (8) is externally sleeved with another shaft sleeve (7), and the shaft sleeve (7) sleeved outside the shaft (8) is embraced by the tapered bearing bush through the adjusting screw.
2. The chemical wear-resistant corrosion-resistant pump shaft sleeve cold-drawing and disassembling device according to claim 1, wherein: the surface of the annular support (3) is provided with a plurality of annular support bolt holes (9) which are symmetrically distributed, and the adjusting screw rod is connected with the annular support (3) through the annular support bolt holes (9) respectively.
3. The chemical wear-resistant corrosion-resistant pump shaft sleeve cold-drawing and disassembling device according to claim 1, wherein: the bearing bush with the taper is provided with bearing bush surface bolt holes (10), and the adjusting screw rod is connected with the bearing bush with the taper through the bearing bush surface bolt holes (10).
4. The chemical wear-resistant corrosion-resistant pump shaft sleeve cold-drawing and disassembling device according to claim 1, wherein: the annular support (3), the bearing rod (4) and the shaft sleeve (7) form a bearing support structure.
5. The chemical wear-resistant corrosion-resistant pump shaft sleeve cold-drawing and disassembling device according to claim 1, wherein: the adjusting screw rod, the bearing bush with taper and the annular bracket (3) form a shaft sleeve holding adjusting mechanism.
6. The chemical wear-resistant corrosion-resistant pump shaft sleeve cold-drawing and disassembling device according to claim 1, wherein: the hydraulic jack (6), the shaft sleeve (7) and the shaft (8) form a cold-drawing force mechanism.
7. The chemical wear-resistant corrosion-resistant pump shaft sleeve cold-drawing and disassembling device according to claim 1, wherein: the bearing base (5) is round, square or other plane shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320655116.3U CN219444968U (en) | 2023-03-29 | 2023-03-29 | Cold-drawing and disassembling device for chemical wear-resistant and corrosion-resistant pump shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320655116.3U CN219444968U (en) | 2023-03-29 | 2023-03-29 | Cold-drawing and disassembling device for chemical wear-resistant and corrosion-resistant pump shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219444968U true CN219444968U (en) | 2023-08-01 |
Family
ID=87385051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320655116.3U Active CN219444968U (en) | 2023-03-29 | 2023-03-29 | Cold-drawing and disassembling device for chemical wear-resistant and corrosion-resistant pump shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219444968U (en) |
-
2023
- 2023-03-29 CN CN202320655116.3U patent/CN219444968U/en active Active
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