CN220051672U - Bearing bush jacking tool of turbine worm structure - Google Patents
Bearing bush jacking tool of turbine worm structure Download PDFInfo
- Publication number
- CN220051672U CN220051672U CN202320340156.9U CN202320340156U CN220051672U CN 220051672 U CN220051672 U CN 220051672U CN 202320340156 U CN202320340156 U CN 202320340156U CN 220051672 U CN220051672 U CN 220051672U
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- China
- Prior art keywords
- worm
- bearing bush
- bracket
- support
- jacking tool
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- 238000005259 measurement Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241001584775 Tunga penetrans Species 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Hydraulic Turbines (AREA)
Abstract
The bearing bush jacking tool comprises a bracket, wherein the upper end of the bracket is in threaded connection with a supporting screw rod, and the supporting screw rod is jacked into a hanging hole of a bearing bush; the support is rotatably installed about, and the worm is installed to the pivot lower extreme, worm one side and the worm wheel meshing of support bottom, and the worm wheel both ends are equipped with positive screw thread cover, reverse screw thread cover, and positive screw thread cover, reverse screw thread cover internal thread are connected with the jackscrew, and every jackscrew one side is equipped with along axis direction with support sliding fit's spout. The bearing bush jacking tool with the turbine worm structure can improve the operation efficiency.
Description
Technical Field
The utility model relates to a hydroelectric generating set, in particular to a bearing bush jacking tool of a turbine worm structure, which is applied to bearing bush clamping work such as gap adjustment and measurement, jigger and the like of a hydroelectric generating set bearing bush.
Background
In the installation and maintenance process of the hydroelectric generating set, the bearing bush and the corresponding shaft collar are required to be attached to complete the bearing bush holding work such as the turning constraint swing degree, the bearing bush gap adjustment and measurement of the set. But the hydroelectric set axle bush is installed in the guide bearing inside, and axle bush and bearing body distance are less, generally are less than 100mm, and another part axle bush installation depth is darker, is greater than 500mm, and the space is limited, brings the inconvenience in the operation. The operation of traditional mode generally is according to the size of on-the-spot measurement, processes corresponding simple and easy jackscrew, uses tools such as adjustable spanner, solid wrench to adjust, and the operating efficiency is lower, and easily takes place to operate improperly, jackscrew, tools drop to the guide bearing oil groove inside, causes the foreign matter to carry over the safe and stable operation that influences the unit.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a bearing bush tightening tool with a turbine worm structure, which can improve the working efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the bearing bush jacking tool comprises a bracket, wherein a supporting screw is arranged at the upper end of the bracket, and the supporting screw is jacked into a hanging hole of a bearing bush; the support is rotatably installed about, and the worm is installed to the pivot lower extreme, worm one side and the worm wheel meshing of support bottom, and the worm wheel both ends are equipped with positive screw thread cover, reverse screw thread cover, and positive screw thread cover, reverse screw thread cover internal thread are connected with the jackscrew, and every jackscrew one side is equipped with along axis direction with support sliding fit's spout.
The bracket comprises a cross beam, sleeves are fixed on the left and right sides of the cross beam, and a C-shaped bracket body is arranged at the lower part of each sleeve.
The C-shaped frame body is composed of front and rear C-shaped plates which are arranged at intervals, sleeves are fixed on the outer sides of the two C-shaped plates, positioning blocks are fixed on the outer sides of the sleeves, and the positioning blocks are in sliding fit with the sliding grooves.
The bearing bush jacking tool of the turbine worm structure has the following technical effects:
1) The tool has the advantages of simple structure, low cost, simple operation, safety, reliability, convenient processing and manufacturing, and convenient and fast operation in the guide bearing with limited space.
2) The tool has a self-locking function and a large transmission ratio, can ensure that the bearing bush cannot loose after enclasping, and can realize the bearing bush gap adjustment and measurement, jigger and other enclasping work of the hydroelectric generating set for a long time after installation and maintenance.
3) The method can be applied to construction of similar operations in hydropower and related industries, and has good universality and remarkable industrial popularization value.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an enlarged partial schematic view at a in fig. 1.
Fig. 3 is a schematic structural view of a C-shaped frame according to the present utility model.
Fig. 4 is a cross-sectional view of the C-shaped frame of the present utility model.
Fig. 5 is a schematic view of the structure of the jackscrew of the present utility model.
Fig. 6 is a schematic view of the working state in the present utility model.
In the figure: the support comprises a support 1, a supporting screw 2, a bearing bush 3, a rotating shaft 4, a worm 5, a worm wheel 6, a forward thread sleeve 7, a reverse thread sleeve 8, a jackscrew 9, a chute 10, a bearing 11, a cross beam 1.1, a sleeve 1.2, a C-shaped frame body 1.3, a C-shaped plate 1.3.1, a sleeve 1.3.2 and a positioning block 1.3.3.
Detailed Description
As shown in fig. 1-5, the bearing bush tightening tool of the turbine worm structure comprises a bracket 1, wherein the bracket 1 comprises a horizontally arranged cross beam 1.1, a sleeve 1.2 is welded on the left and right sides of the cross beam 1.1, and a C-shaped bracket body 1.3 is fixed at the lower end of the sleeve 1.2. The front end of the cross beam 1.1 is fixedly provided with a supporting block, a waist hole is formed in the supporting block, and the supporting screw rod 2 freely penetrates through the waist hole and is limited up and down through a nut. A rotating shaft 4 is arranged in each sleeve 1.2, and the lower end of the rotating shaft 4 extends out of the sleeve 1.2 and is rotatably arranged on the C-shaped frame body 1.3. A worm 5 is fixed on the rotating shaft 4 at the position of the C-shaped frame body 1.3, and one side of the worm 5 is meshed with a worm wheel 6. The worm wheel 6 is rotatably arranged on the C-shaped frame body 1.3. The center of one end of the worm wheel 6 is fixedly provided with a positive-rotation thread sleeve 7, the center of the other end is fixedly provided with a negative-rotation thread sleeve 8, jackscrews 9 are connected with the internal threads of the positive-rotation thread sleeve 7 and the negative-rotation thread sleeve 8, and a sliding groove 10 which is in sliding fit with the bracket 1 is arranged on one side of each jackscrew 9 along the axis direction.
The C-shaped frame body 1.3 is composed of C-shaped plates 1.3.1 which are arranged at intervals in the front-back direction, and the worm wheel 6 is arranged in the interval between the two C-shaped plates 1.3.1. The outer sides of the two C-shaped plates 1.3.1 are fixedly provided with sleeves 1.3.2, and the positive screw thread sleeve 7 and the negative screw thread sleeve 8 are in clearance fit with the sleeves 1.3.2. The outer side of the sleeve 1.3.2 is fixedly provided with a positioning block 1.3.3, and the positioning block 1.3.3 is in sliding fit with the chute 10.
Working principle and process: when the tool is used, the whole tool is placed in the middle of the back of the bearing bush 3, the supporting screw 2 is screwed into the hanging hole at the upper part of the bearing bush 3, and the tool is fixed at the corresponding height through the nuts on the upper part and the lower part of the supporting block. The handles at the upper ends of the rotating shafts 4 are respectively rotated, and the worm wheel 6 is driven to rotate through the rotation of the worm 5. The two ends of the worm wheel 6 are provided with a positive screw thread sleeve 7 and a negative screw thread sleeve 8, and a clockwise jackscrew 9 and a counterclockwise jackscrew 9 are respectively arranged. The two jackscrews 9 are provided with the straight sliding grooves 10, the corresponding positions of the C-shaped frame body 1.3 are provided with the straight positioning blocks 1.3.3, the sliding grooves 10 are matched with the positioning blocks 1.3.3, the limiting effect on the two jackscrews 9 is achieved, the rotation of the turbine 6 is converted into the transverse movement of the jackscrews 9, and therefore radial acting force is applied between the bearing 11 and the back of the bearing bush 3, and the bearing bush 3 is tightly attached to the shaft collar.
The bearing bush clamping device has the advantages of large transmission ratio, self-locking capability and the like of the worm and gear structure, can realize the same jacking force of a simple jackscrew, can ensure that the bearing bush cannot loose after being clamped tightly, and can meet the requirements of bearing bush gap adjustment, measurement, jigger and other bearing bush clamping works of a hydroelectric generating set for a long time during installation and maintenance.
Claims (3)
1. The utility model provides a bearing bush tight instrument of pushing up of turbine worm structure which characterized in that: the device comprises a bracket (1), wherein a supporting screw rod (2) is arranged at the upper end of the bracket (1), and the supporting screw rod (2) is jacked into a hanging hole of a bearing bush (3); the support (1) is rotatably provided with a rotating shaft (4) left and right, the lower end of the rotating shaft (4) is provided with a worm (5), one side of the worm (5) is meshed with a worm wheel (6) at the bottom of the support (1), both ends of the worm wheel (6) are provided with a forward-rotation thread bush (7) and a reverse-rotation thread bush (8), the internal threads of the forward-rotation thread bush (7) and the reverse-rotation thread bush (8) are connected with jackscrews (9), and a sliding groove (10) which is in sliding fit with the support (1) is formed in one side of each jackscrew (9) along the axis direction.
2. The bearing shell jacking tool of a turbine worm structure according to claim 1, wherein: the bracket (1) comprises a cross beam (1.1), a sleeve (1.2) is fixed on the left and right sides of the cross beam (1.1), and a C-shaped bracket body (1.3) is arranged at the lower part of the sleeve (1.2).
3. The bearing shell jacking tool of a turbine worm structure according to claim 2, wherein: the C-shaped frame body (1.3) is composed of C-shaped plates (1.3.1) which are arranged at intervals from front to back, sleeves (1.3.2) are fixed on the outer sides of the two C-shaped plates (1.3.1), positioning blocks (1.3.3) are fixed on the outer sides of the sleeves (1.3.2), and the positioning blocks (1.3.3) are in sliding fit with the sliding grooves (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320340156.9U CN220051672U (en) | 2023-02-28 | 2023-02-28 | Bearing bush jacking tool of turbine worm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320340156.9U CN220051672U (en) | 2023-02-28 | 2023-02-28 | Bearing bush jacking tool of turbine worm structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220051672U true CN220051672U (en) | 2023-11-21 |
Family
ID=88761288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320340156.9U Active CN220051672U (en) | 2023-02-28 | 2023-02-28 | Bearing bush jacking tool of turbine worm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220051672U (en) |
-
2023
- 2023-02-28 CN CN202320340156.9U patent/CN220051672U/en active Active
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