CN117906924A - Combined shafting tool for disc part rotation test - Google Patents
Combined shafting tool for disc part rotation test Download PDFInfo
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- CN117906924A CN117906924A CN202311620500.0A CN202311620500A CN117906924A CN 117906924 A CN117906924 A CN 117906924A CN 202311620500 A CN202311620500 A CN 202311620500A CN 117906924 A CN117906924 A CN 117906924A
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- main shaft
- tensioning
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- thrust piece
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000007704 transition Effects 0.000 claims abstract description 55
- 238000009434 installation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The embodiment of the application provides a combined shafting tool for a disc part rotation test, which comprises the following components: a main shaft; the thrust piece is sleeved on the main shaft and is detachably and fixedly connected with the main shaft; the transition connecting disc is used for installing disc workpieces, is positioned at one end of the thrust piece, which is away from the main shaft, and is propped against the thrust piece; the transition connecting disc is detachably and fixedly connected with the thrust piece and/or the main shaft. In the application, the transition connecting disc is detachably and fixedly connected with the thrust piece and/or the main shaft, and the installation of different types of disc parts can be realized by replacing the transition connecting disc; the main shaft is not damaged by replacing the transition connecting disc and the thrust piece, so that the tool has higher rotation precision; the tool is simple in structure, convenient to install and maintain, capable of remarkably improving test efficiency and reducing test cost.
Description
Technical Field
The application relates to the technical field of rotating machinery tests, in particular to a combined shafting tool for a disc part rotating test.
Background
As a core component of the high-speed rotary machine, the use safety of disk components such as fanning disks, wheel disks and the like and various installed blades thereof is particularly important. For example, there are increasing demands for tests such as overspeed rotation strength, fracture ultimate strength, and fatigue test on high and low cycles of rotating disk parts. In order to meet the requirements of disc parts rotation test, the development of a universal type shaft system for the installation and rotation test of various disc parts is urgent.
The rotation check is required to be carried out on a high-speed rotating mechanical test bed during the development of the disc parts; at present, disc parts are required to be fixedly installed with a test bed rotating main shaft directly or through a transition disc, but with the increase of the checking time and frequency, the test bed rotating main shaft can be damaged or the rotating precision is reduced, so that the test effect is reduced, and the test cost is improved.
Disclosure of Invention
The embodiment of the application provides a combined shafting tool for a disc part rotation test, which aims to solve the problems that the existing disc part is directly fixed with a rotating main shaft and causes damage to the main shaft.
In order to achieve the above purpose, the present application provides the following technical solutions:
A combination shafting frock for disk spare part rotation test includes:
a main shaft;
The thrust piece is sleeved on the main shaft and is detachably and fixedly connected with the main shaft;
The transition connecting disc is used for installing disc workpieces, the transition connecting disc and the thrust piece are sequentially arranged from front to back along the axial direction, and the transition connecting disc is propped against the thrust piece; the transition connecting disc is detachably and fixedly connected with the thrust piece and/or the main shaft.
Optionally, a circumferential inner wall of the thrust piece is provided with a mounting groove extending along the axial direction;
Further comprises:
the tensioning device is positioned between the mounting groove and the outer wall of the main shaft and used for fixing the thrust piece and the main shaft.
Optionally, the tensioning device includes:
The tensioning sleeve is positioned in the mounting groove and provided with a through hole extending along the axial direction;
the tensioning block is located in the tensioning sleeve and is provided with a threaded hole matched with the tensioning sleeve, and the tensioning bolt penetrates through the through hole and the threaded hole respectively and drives the tensioning block to move towards one side close to the tensioning sleeve along the axial direction to be tensioned.
Optionally, the tensioning sleeve is provided with a middle connecting part, two sides of the middle connecting part are respectively provided with a first wedge-shaped tensioning surface extending along the axial direction, and the through hole is positioned at the middle connecting part;
the tensioning block comprises:
the upper tensioning block and the lower tensioning block are respectively positioned at the upper end and the lower end of the middle connecting part, and the upper tensioning block and the lower tensioning block are respectively provided with a second tensioning surface and a third tensioning surface which are matched with the first wedge-shaped tensioning surface; the upper tensioning block is provided with a first threaded hole, and the lower tensioning block is provided with a second threaded hole;
The tensioning bolt sequentially penetrates through the first threaded hole, the through hole and the second threaded hole from top to bottom, and drives the tensioning block and the lower tensioning block to move towards the direction close to the middle connecting portion.
Optionally, the screw thread screwing directions of the first screw hole and the second screw hole are opposite.
Optionally, the transition connecting disc is detachably and fixedly connected with the main shaft through a threaded fastener; and the transition connecting disc is detachably and fixedly connected with the thrust piece through a threaded fastener.
Optionally, the transition connection pad is close to the lateral wall of main shaft is equipped with the shrinkage pool, the transition connection pad warp the shrinkage pool with the tip interference fit of main shaft.
Optionally, the transition connecting disc is in a shape like a Chinese character 'ji', and the concave hole of the shape like a Chinese character 'ji' is in interference fit with the main shaft; the boss with the shape of the Chinese character 'ji' is sleeved with the inner hole of the disc workpiece for positioning.
Optionally, the radial end wall of the boss is provided with a first mounting hole and a second mounting hole so as to be respectively fixed with the thrust piece and the disc workpiece through threaded fasteners.
Optionally, the thrust piece includes:
The sleeve part is used for being sleeved with the main shaft and in clearance fit with the main shaft; the sleeve part is provided with the mounting groove;
The thrust part is positioned at one end of the sleeve part, which is axially away from the transition connecting disc, and is provided with a radial convex part which extends along the radial direction, and the diameter of the thrust part is larger than that of the main shaft.
The embodiment of the application provides a combined shafting tool for a disc part rotation test, which comprises the following components: a main shaft; the thrust piece is sleeved on the main shaft and is detachably and fixedly connected with the main shaft; the transition connecting disc is used for installing disc workpieces, is positioned at one end of the thrust piece, which is away from the main shaft, and is propped against the thrust piece; the transition connecting disc is detachably and fixedly connected with the thrust piece and/or the main shaft.
Compared with the prior art, the combined shafting tool for the disc part rotation test has the following technical effects:
The main shaft is sleeved with the thrust piece, the end part of the main shaft is provided with the transition connecting disc, the transition connecting disc is propped against the thrust piece, the thrust piece provides support for the transition connecting disc, the large unbalanced moment is reduced, the main shaft stably rotates, and meanwhile, the thrust piece, the transition connecting disc and the main shaft form a whole, so that the rotation precision is improved; the transition connecting disc is detachably and fixedly connected with the thrust piece and/or the main shaft, and the installation of different types of disc parts can be realized by replacing the transition connecting disc; the main shaft is not damaged by replacing the transition connecting disc and the thrust piece, so that the tool has higher rotation precision; the tool is simple in structure, convenient to install and maintain, capable of remarkably improving test efficiency and reducing test cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic cross-sectional structure diagram of a combined shafting tool for a disc part rotation test according to an embodiment of the present application;
fig. 2 is a schematic view of a partial enlarged structure of fig. 1.
The figures are marked as follows:
A main shaft, a2 thrust piece, a3 tensioning device, a 4 transition connecting disc and a5 disc workpiece;
301 up-tightening blocks, 302 up-tightening sleeves, 303 down-tightening blocks, 304 up-tightening bolts.
Detailed Description
The embodiment of the invention discloses a combined shafting tool for a disc part rotation test, which aims to solve the problem that the existing disc part is directly fixed with a rotating main shaft to cause damage to the main shaft.
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is provided in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application and not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
Referring to fig. 1-2, fig. 1 is a schematic cross-sectional structure diagram of a combined shafting tool for a disc part rotation test according to an embodiment of the present application; fig. 2 is a schematic view of a partial enlarged structure of fig. 1.
In a specific embodiment, the combined shafting tool for the disc part rotation test provided by the application comprises:
A main shaft 1;
the thrust piece 2 is sleeved on the main shaft 1 and is detachably and fixedly connected with the main shaft 1;
The transition connecting disc 4 is used for installing disc workpieces 5, the transition connecting disc 4 and the thrust piece 2 are sequentially arranged from front to back along the axial direction, and the transition connecting disc 4 is propped against the thrust piece 2; the transition connecting disc 4 is detachably and fixedly connected with the thrust piece 2 and/or the main shaft 1.
The thrust piece 2 is sleeve structure, and the suit carries out axial positioning through main shaft 1 circular bead on main shaft 1 on, thrust piece 2 and main shaft 1 detachably fixed connection to be convenient for dismouting when damaging, realize the installation of dish class work piece 5 through thrust piece 2 connection transition connection pad 4, from this in order to reduce the damage to main shaft 1, improve rotatory precision.
The transition connecting disc 4 is used for installing disc workpieces 5, and the transition connecting disc 4 can be correspondingly connected according to different types of disc workpieces 5, so that the combined shafting tool can test different types of disc workpieces 5, and the universality of the tool is improved.
The transition connection disc 4 is preferably arranged at the radial end wall of the main shaft 1, the thrust piece 2 is sleeved at the front end of the main shaft 1, and the thrust piece 2 is propped against the transition connection disc 4 so as to provide axial supporting force for the transition connection disc. Preferably, the transition connecting disc 4 is detachably and fixedly connected with the thrust piece 2 and the main shaft 1 respectively, so as to further improve the firmness.
In this embodiment, the circumferential inner wall of the thrust piece 2 is provided with a mounting groove extending in the axial direction; the tool also comprises a tensioning device 3, wherein the tensioning device 3 is positioned between the mounting groove and the outer wall of the main shaft 1, and the thrust piece 2 and the main shaft 1 are fixed. The thrust piece 2 and the main shaft 1 are in clearance fit, so that the tensioning device 3 is convenient to install, abrasion between the thrust piece 2 and the main shaft 1 in the high-speed rotation process is reduced, and the service life of the main shaft 1 is prolonged. The tensioning device 3 can improve the connection strength between the main shaft 1 and the thrust piece 2 and improve the rotation precision.
Specifically, the tensioning device 3 includes:
The tensioning sleeve 302 is positioned in the mounting groove and provided with a through hole extending along the axial direction;
The tensioning block and the tensioning bolt 304 are positioned in the tensioning sleeve 302, the tensioning block is provided with a threaded hole matched with the tensioning sleeve 302, the tensioning bolt 304 respectively penetrates through the through hole and the threaded hole, and the tensioning block is driven to move to one side close to the tensioning sleeve 302 along the axial direction for tensioning.
It can be understood that the tensioning sleeve 302 and the tensioning block are provided with bonding surfaces, the tensioning block moves to the side close to the tensioning sleeve 302, relative displacement occurs between the bonding surfaces, radial tensioning is achieved, the tensioning sleeve 302 is tensioned with the thrust piece 2, and the tensioning block is tensioned with the main shaft 1, so that the fixing between the thrust piece 2 and the main shaft 1 is achieved; the tensioning sleeve 302 is provided with a through hole extending along the axial direction, the tensioning block is provided with a threaded hole, and when the tensioning bolt 304 passes through the through hole and the threaded hole, the tensioning block moves along the axial direction towards the direction close to the tensioning sleeve 302; in other embodiments, the tensioning device 3 can also be realized by arranging two wedge-shaped tensioning blocks, and threaded holes are respectively arranged between the two wedge-shaped tensioning blocks and are realized by matching tensioning bolts 304; the specific form of the tensioning device 3 can be set as required, as long as the same technical effect can be achieved.
Further, the tension sleeve 302 has an intermediate connection portion, and the through hole is located on the intermediate connection portion; the two sides of the middle connecting part are respectively provided with a first wedge-shaped tensioning surface extending along the axial direction, and the first wedge-shaped tensioning surfaces are obliquely arranged from the middle connecting part to the edge to form a trapezoid structure with thick middle and thin two sides; correspondingly, the tensioning blocks comprise an upper tensioning block 301 and a lower tensioning block 303, the upper tensioning block 301 and the lower tensioning block 303 are respectively positioned at the upper end and the lower end of the middle connecting part, and the upper tensioning block 301 and the lower tensioning block 303 are respectively provided with a second tensioning surface and a third tensioning surface which are matched with the first wedge-shaped tensioning surface; it can be appreciated that the second tensioning surface is matched with the first wedge-shaped tensioning surface positioned above, and the third tensioning surface is matched with the first wedge-shaped tensioning surface positioned below; the upper tensioning block 301 is provided with a first threaded hole, and the lower tensioning block 303 is provided with a second threaded hole; the tensioning bolt 304 sequentially penetrates through the first threaded hole, the through hole and the second threaded hole from top to bottom, and drives the tensioning block 301 and the lower tensioning block 303 to move towards the direction close to the middle connecting part so as to simultaneously tension in the upper direction and the lower direction, and the acting force length in the axial direction is increased, so that the fixing firmness is improved.
Further, the screw-in directions of the first screw hole and the second screw hole are opposite. The first threaded holes are formed in the circumference of the upper tensioning block 301, and the second threaded holes are formed in the circumference of the lower tensioning block 303; the first threaded hole is a right-handed threaded through hole, the second threaded hole is a left-handed threaded through hole, the lower tensioning block 303, the tensioning sleeve 302 and the upper tensioning block 301 are sequentially placed in the mounting groove, the tensioning bolt 304 is screwed into the upper tensioning block 301 firstly, and then is screwed into the lower tensioning block 303 after passing through the through hole of the tensioning sleeve 302; in the screwing process, the upper tensioning block 301 moves downwards, the lower tensioning block 303 moves upwards, in the shrinking process of the upper tensioning block 301 and the lower tensioning block 303, the inner side is tensioned with the main shaft 1, and the outer side is tensioned with the thrust piece 2 through the tensioning sleeve 302; after the tensioning bolt 304 is screwed into a preset limiting moment, tensioning of the thrust piece 2 and the main shaft 1 is completed, and the thrust piece 2 is fixedly connected with the main shaft 1 through the tensioning device 3 to form a whole.
The transition connecting disc 4 is detachably and fixedly connected with the main shaft 1 and the thrust piece 2 through threaded fasteners respectively; specifically, the transition connecting piece is provided with a concave hole close to the side wall of the main shaft 1, and the transition connecting disc 4 is in interference fit with the end part of the main shaft 1 through the concave hole so as to realize the positioning of the transition connecting piece and the end part of the main shaft 1; specifically, the transition connecting disc 4 is of a Chinese character 'ji' -shaped structure, and a concave hole of the Chinese character 'ji' -shaped structure is in interference fit with the main shaft 1; the radial end wall of the boss is provided with a first mounting hole and a second mounting hole, the first mounting hole is fixed with the thrust piece 2 through a threaded fastener, and the second mounting hole is fixed with the disc workpiece 5 through a threaded fastener; the boss with a shape like a Chinese character 'ji' is sleeved with an inner hole of the disc workpiece 5 for positioning, and the transition connecting disc 4 is fixedly connected with the radial end wall of the main shaft 1 through screws.
In this embodiment, the thrust member 2 includes:
the sleeve part is used for being sleeved with the main shaft 1 and in clearance fit; the sleeve part is provided with a mounting groove and a tensioning device 3;
The thrust part is positioned at one end of the sleeve part, which is away from the transition connecting disc 4 along the axial direction, and is provided with a radial convex part which extends along the radial direction, and the diameter of the thrust part is larger than that of the main shaft 1; so as to further improve the stability of the main shaft 1 in the high-speed rotation process and reduce the large unbalanced force.
The combined shafting tool adopts the structure that the thrust piece 2 is tensioned and connected with the transition disc, and is suitable for installing various disc parts of different types. By replacing the parts such as the connecting disc and the thrust piece 2, the main shaft 1 is ensured not to be damaged, and the high rotation precision is achieved. The device has the advantages of simple structure, convenient installation and maintenance, and capability of remarkably improving the test efficiency and reducing the test cost.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A combination shafting frock for disk spare part rotation test, its characterized in that includes:
a main shaft;
The thrust piece is sleeved on the main shaft and is detachably and fixedly connected with the main shaft;
The transition connecting disc is used for installing disc workpieces, the transition connecting disc and the thrust piece are sequentially arranged from front to back along the axial direction, and the transition connecting disc is propped against the thrust piece; the transition connecting disc is detachably and fixedly connected with the thrust piece and/or the main shaft.
2. The combined shafting tool of claim 1, wherein a circumferential inner wall of the thrust piece is provided with an axially extending mounting groove;
Further comprises:
the tensioning device is positioned between the mounting groove and the outer wall of the main shaft and used for fixing the thrust piece and the main shaft.
3. The combined shafting tool of claim 2, wherein the tensioning device comprises:
The tensioning sleeve is positioned in the mounting groove and provided with a through hole extending along the axial direction;
the tensioning block is located in the tensioning sleeve and is provided with a threaded hole matched with the tensioning sleeve, and the tensioning bolt penetrates through the through hole and the threaded hole respectively and drives the tensioning block to move towards one side close to the tensioning sleeve along the axial direction to be tensioned.
4. The combined shafting tool of claim 3, wherein the tensioning sleeve is provided with a middle connecting part, two sides of the middle connecting part are respectively provided with a first wedge-shaped tensioning surface extending along the axial direction, and the through hole is positioned at the middle connecting part;
the tensioning block comprises:
the upper tensioning block and the lower tensioning block are respectively positioned at the upper end and the lower end of the middle connecting part, and the upper tensioning block and the lower tensioning block are respectively provided with a second tensioning surface and a third tensioning surface which are matched with the first wedge-shaped tensioning surface; the upper tensioning block is provided with a first threaded hole, and the lower tensioning block is provided with a second threaded hole;
The tensioning bolt sequentially penetrates through the first threaded hole, the through hole and the second threaded hole from top to bottom, and drives the tensioning block and the lower tensioning block to move towards the direction close to the middle connecting portion.
5. The combination shafting tool of claim 4, wherein the thread precession directions of the first threaded hole and the second threaded hole are opposite.
6. The combined shafting tool of claim 1, wherein the transition connection disc is detachably and fixedly connected with the main shaft through a threaded fastener; and the transition connecting disc is detachably and fixedly connected with the thrust piece through a threaded fastener.
7. The combined shafting tool of claim 6, wherein the transition connection disc is provided with a concave hole near the side wall of the main shaft, and the transition connection disc is in interference fit with the end part of the main shaft through the concave hole.
8. The combined shafting tool of claim 7, wherein the transition connection disc is of a figure-shaped structure, and the concave hole of the figure-shaped structure is in interference fit with the main shaft; the boss with the shape of the Chinese character 'ji' is sleeved with the inner hole of the disc workpiece for positioning.
9. The combined shafting tool of claim 8, wherein the radial end wall of the boss is provided with a first mounting hole and a second mounting hole for securing with the thrust piece and the disc-like workpiece, respectively, via threaded fasteners.
10. The combination shafting tool of claim 2, wherein the thrust piece comprises:
The sleeve part is used for being sleeved with the main shaft and in clearance fit with the main shaft; the sleeve part is provided with the mounting groove;
The thrust part is positioned at one end of the sleeve part, which is axially away from the transition connecting disc, and is provided with a radial convex part which extends along the radial direction, and the diameter of the thrust part is larger than that of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311620500.0A CN117906924A (en) | 2023-11-30 | 2023-11-30 | Combined shafting tool for disc part rotation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311620500.0A CN117906924A (en) | 2023-11-30 | 2023-11-30 | Combined shafting tool for disc part rotation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117906924A true CN117906924A (en) | 2024-04-19 |
Family
ID=90693483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311620500.0A Pending CN117906924A (en) | 2023-11-30 | 2023-11-30 | Combined shafting tool for disc part rotation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117906924A (en) |
-
2023
- 2023-11-30 CN CN202311620500.0A patent/CN117906924A/en active Pending
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