CN216349341U - Turbine initial unbalance tool for improving test precision - Google Patents
Turbine initial unbalance tool for improving test precision Download PDFInfo
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- CN216349341U CN216349341U CN202122266299.3U CN202122266299U CN216349341U CN 216349341 U CN216349341 U CN 216349341U CN 202122266299 U CN202122266299 U CN 202122266299U CN 216349341 U CN216349341 U CN 216349341U
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Abstract
The utility model discloses a turbine initial unbalance tool for improving test precision, which comprises an installation chassis, a positioning chassis fixed on the installation chassis and used for positioning a turbine, a pressing component connected on the installation chassis and used for pressing the turbine on the positioning chassis, a balance flange rotationally arranged on the excircle of the positioning chassis, and a locking screw arranged on the positioning chassis and used for locking the balance flange, the positioning chassis is provided with a detachable positioning ring, the positioning ring is provided with an inner spigot used for positioning the excircle and the end face of one end of the turbine, the upper end face of the balance flange is provided with a sliding groove, a balance sliding block is arranged in the sliding groove, a waist-shaped hole parallel to the sliding groove is formed in the balance sliding block, and the balance sliding block is fixed in the sliding groove through a compression screw which penetrates through the waist-shaped hole and is in threaded connection with the balance flange. The utility model improves the test precision and efficiency of the turbine initial unbalance tool.
Description
Technical Field
The utility model relates to the technical field of turbine manufacturing process equipment, in particular to a turbine initial unbalance tool for improving test precision.
Background
The precise casting of the turbine usually adopts a lost wax casting technology, and specifically comprises the steps of firstly manufacturing a turbine wax mould with the same shape as a metal turbine blank, then coating a layer of fireproof composite mortar on the outer surface of the turbine wax mould, drying to form a layer of fireproof mortar shell on the surface of the turbine wax mould, putting the shell into a furnace for sintering and dewaxing, burning away the wax material in the shell, taking the hardened mould shell as a casting mould, casting the molten metal into the mould shell for cooling and solidification, and removing the mortar shell to form the metal turbine.
For some turbines with special requirements, after precision casting, an initial imbalance test of the turbine blank is required to ensure the performance of the final finished turbine.
The initial unbalance test of the turbine is performed on an unbalance rotation test stand, which is a detection device capable of automatically detecting the unbalance weight and the unbalance circumferential position of the turbine. Before the initial unbalance test of the turbine, a positioning tool needs to be installed on an unbalanced rotation test bed in advance, then the turbine is positioned and fixed on the tool, and then the rotation test bed is started to detect the initial unbalance of the turbine.
However, the existing tool for the initial unbalance test of the turbine has a certain unbalance amount due to manufacturing errors and assembly errors, and for this reason, the existing technology usually adopts a weight removal mode to eliminate the unbalance of the tool itself. However, the existing method for removing the weight or balancing the weight is troublesome, the tool needs to be repeatedly detached from the test bed for removing the weight for multiple times, on one hand, the production efficiency is low, and on the other hand, a certain residual unbalance amount still exists after the weight is removed, so that the test precision of the initial unbalance tool of the turbine is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a turbine initial unbalance tool for improving the test precision, and aims to improve the test precision of the turbine initial unbalance tool and the efficiency of a turbine initial unbalance test. The specific technical scheme is as follows:
the utility model provides an initial unbalanced frock of turbine for improving experimental precision, is including the installation chassis that is used for connecting the initial unbalanced rotation test platform of turbine, fix be used for the turbine location on the installation chassis location chassis, connect be used for on the installation chassis with the turbine compresses tightly compress tightly subassembly, rotation setting on the location chassis are in balanced flange, setting on the excircle of location chassis are in be used for on the location chassis with the locking screw that balanced flange locked carries out, be provided with the detachable position circle on the location chassis, be provided with the internal thread form that is used for fixing a position turbine one end excircle and terminal surface on the position circle, the up end of balanced flange radially is provided with the spout, be provided with balanced slider in the spout, be provided with on the balanced slider and be on a parallel with the waist shape hole of spout, balanced slider through passing waist shape hole and with balanced flange threaded connection's housing screw fixes the spout is provided with And (4) the following steps.
Preferably, the lower end face of the balance sliding block is provided with a rubber layer in a gluing mode.
Preferably, the number of the locking screws on the balance flange is one pair, and the pair of the locking screws are symmetrically arranged relative to the central axis of the balance flange.
The pressing assembly comprises a rigid bridge fixed on the installation chassis and arranged above the positioning chassis in an overhead mode, and a jacking screw rod arranged on the rigid bridge in a threaded fit connection mode and used for pressing the turbine.
In the utility model, the lower end of the tightening screw rod is rotatably provided with a cylindrical pressure head, and the upper end of the tightening screw rod is provided with an operating handle.
Preferably, a counter bore is formed in the center of the lower end face of the cylindrical pressure head.
As a further improvement of the utility model, the compressing assembly further comprises a guide sleeve sleeved on the excircle of the jacking screw rod, the guide sleeve is fixed on the rigid bridge, and the excircle of the thread of the jacking screw rod is connected with the inner hole of the guide sleeve in a sliding fit manner after being ground.
Preferably, the orifices at two ends of the guide sleeve are respectively provided with a transition arc-shaped chamfer.
In the utility model, a positioning spigot is arranged on the positioning chassis, and the positioning ring is positioned on the positioning chassis through the positioning spigot and is fixed through a fastening screw.
In the utility model, the mounting chassis is provided with a positioning hole, and the positioning chassis is positioned on the positioning hole of the mounting chassis and fixed by a fastening screw.
The application method of the turbine initial unbalance tool comprises the following steps:
the method comprises the steps of firstly, installing and positioning a tool to an initial unbalanced rotary test bed of a turbine, firstly detecting the unbalanced weight of the tool, obtaining the circumferential position and the size of the unbalanced weight of the tool according to a detection result, then rotating a balance slide block to the position of the unbalanced weight through a balance flange, and eliminating the unbalanced weight of the tool by adjusting the position of the balance slide block.
And secondly, after the unbalanced weight of the tool is eliminated, clamping and positioning the turbine on the tool to perform an initial unbalanced test of the turbine.
The utility model has the beneficial effects that:
firstly, according to the initial turbine unbalance tool for improving the test precision, the balance flange is rotatably arranged on the outer circle of the positioning chassis, the balance slide block with the adjustable position is arranged on the balance flange, when the tool has unbalance weight due to manufacturing errors and the like, the balance slide block can be rotated to the position of the unbalance weight through the balance flange, the position of the balance slide block is adjusted to eliminate the unbalance weight of the tool, and therefore the test precision of the initial turbine unbalance tool is improved.
Secondly, according to the turbine initial unbalance tool for improving the test precision, the position of the balance slide block can be adjusted on line on the test bed, and the tool does not need to be repeatedly assembled and disassembled, so that the production efficiency is improved.
Thirdly, the turbine initial unbalance tool for improving the test precision is provided with the rubber layer on the lower end face of the balance sliding block in a gluing mode, the balance sliding block cannot shift after being fixed by a compression screw after being adjusted in position, and the reliability is good.
Fourthly, according to the initial turbine unbalance tool for improving the test precision, the defect that the fit clearance between the tightening screw and the rigid bridge is large due to the arrangement of the guide sleeve on the tightening screw can be overcome, and unbalance errors caused by eccentricity of the tightening screw can be eliminated, so that the test precision is further improved.
Fifth, according to the turbine initial unbalance tool for improving the test precision, the positioning ring can be replaced, so that the requirements of turbine initial unbalance tests of different specifications can be met, and the universality is good.
Drawings
FIG. 1 is a schematic structural diagram of a turbine initial unbalance tool for improving test precision according to the utility model;
fig. 2 is a partially enlarged view of a balancing flange on the right side of fig. 1 with a balancing slider.
In the figure: 1. the turbine, 2, the installation chassis, 3, the location chassis, 4, compress tightly the subassembly, 5, balanced flange, 6, locking screw, 7, the position circle, 8, the internal spigot, 9, the spout, 10, balanced slider, 11, waist shape hole, 12, housing screw, 13, the rubber layer, 14, the rigidity crane span structure, 15, the tight screw rod in top, 16, the cylinder pressure head, 17, operating handle, 18, the counter bore, 19, the uide bushing, 20, transition arc chamfer, 21, the location spigot, 22, the locating hole, 23, fastening screw, 24, the initial unbalanced rotation test platform of turbine.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 2 show an embodiment of a turbine initial unbalance tool for improving test accuracy according to the present invention, which includes an installation chassis 2 for connecting an initial unbalance rotation test bed 24 of a turbine 1, a positioning chassis 3 fixed on the installation chassis 2 for positioning the turbine 1, a pressing assembly 4 connected on the installation chassis 2 for pressing the turbine 1 on the positioning chassis 3, a balance flange 5 rotatably disposed on an outer circle of the positioning chassis 3, and a locking screw 6 disposed on the positioning chassis 3 for locking the balance flange 5, wherein a detachable positioning ring 7 is disposed on the positioning chassis 3, an inner spigot 8 for positioning an outer circle and an end face of one end of the turbine 1 is disposed on the positioning ring 7, a sliding groove 9 is radially disposed on an upper end face of the balance flange 5, and a balance slider 10 is disposed in the sliding groove 9, the balance sliding block 10 is provided with a waist-shaped hole 11 parallel to the sliding groove 9, and the balance sliding block 10 is fixed in the sliding groove 9 through a compression screw 12 which penetrates through the waist-shaped hole 11 and is in threaded connection with the balance flange 5.
Preferably, the lower end surface of the balance sliding block 10 is provided with a rubber layer 13 by a gluing method.
Preferably, the number of the locking screws 6 on the balance flange 5 is one pair, and the pair of the locking screws 6 is symmetrically arranged relative to the central axis of the balance flange 5.
In this embodiment, the pressing assembly 4 includes a rigid bridge 14 fixed on the mounting chassis 2 and arranged above the positioning chassis 3 in an overhead manner, and a tightening screw 15 arranged on the rigid bridge 14 in a threaded fit connection manner and used for pressing the turbine 1.
In this embodiment, the lower end of the tightening screw 15 is rotatably provided with a cylindrical pressure head 16, and the upper end of the tightening screw 15 is provided with an operating handle 17.
Preferably, a counter bore 18 is formed in the center of the lower end surface of the cylindrical pressing head 16.
As a further improvement of this embodiment, the pressing assembly 4 further includes a guide sleeve 19 sleeved on the outer circle of the tightening screw 15, the guide sleeve 19 is fixed on the rigid bridge 14, and the outer circle of the thread of the tightening screw 15 is ground and then connected with the inner hole of the guide sleeve 19 in a sliding fit manner.
Preferably, the two end openings of the guide sleeve 19 are respectively provided with a transition arc-shaped chamfer 20.
In this embodiment, a positioning spigot 21 is arranged on the positioning chassis 3, and the positioning ring 7 is positioned on the positioning chassis 3 through the positioning spigot 21 and fixed through a fastening screw 23.
In this embodiment, the mounting chassis 2 is provided with a positioning hole 22, and the positioning chassis 3 is positioned on the positioning hole 22 of the mounting chassis 2 and fixed by a fastening screw 23.
The use method of the turbine initial unbalance tool of the embodiment is as follows:
firstly, the tool is installed and positioned on the initial unbalanced rotation test bed 24 of the turbine, the unbalanced weight of the tool is detected firstly, the circumferential position of the unbalanced weight of the tool and the size of the unbalanced weight are obtained according to the detection result, then the balance slide block 10 is rotated to the position of the unbalanced weight through the balance flange 5, and the unbalanced weight of the tool is eliminated by adjusting the position of the balance slide block.
And step two, after the unbalanced weight of the tool is eliminated, clamping and positioning the turbine 1 on the tool, and carrying out an initial unbalanced test on the turbine.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The initial turbine unbalance tool for improving the test precision is characterized by comprising an installation chassis, a positioning chassis, a pressing assembly, a balance flange and a locking screw, wherein the installation chassis is used for connecting an initial turbine unbalance rotating test bed, the positioning chassis is used for positioning a turbine and is connected with the installation chassis, the pressing assembly is used for pressing the turbine on the positioning chassis, the balance flange is rotatably arranged on the excircle of the positioning chassis, the locking screw is arranged on the positioning chassis and is used for locking the balance flange, a detachable positioning ring is arranged on the positioning chassis, an inner spigot used for positioning the excircle and the end face of one end of the turbine is arranged on the positioning ring, a sliding groove is radially arranged on the upper end face of the balance flange, a balance sliding block is arranged in the sliding groove, a waist-shaped hole parallel to the sliding groove is arranged on the balance sliding block, the balance sliding block is fixed in the sliding groove through a compression screw which penetrates through the waist-shaped hole and is in threaded connection with the balance flange.
2. The initial unbalanced tool for the turbine for improving the test precision of claim 1, wherein a rubber layer is arranged on the lower end face of the balance slide block in a gluing mode.
3. The initial turbine unbalance tool for improving the test accuracy according to claim 1, wherein the number of the locking screws on the balance flange is one, and the pair of the locking screws are symmetrically arranged relative to the central axis of the balance flange.
4. The initial turbine unbalance tool for improving the test accuracy according to claim 1, wherein the pressing assembly includes a rigid bridge fixed on the mounting chassis and arranged above the positioning chassis in an overhead manner, and a tightening screw arranged on the rigid bridge in a threaded fit connection manner and used for pressing the turbine.
5. The turbine initial unbalance tool for improving the test precision as claimed in claim 4, wherein a cylindrical pressure head is rotatably arranged at the lower end of the tightening screw rod, and an operating handle is arranged at the upper end of the tightening screw rod.
6. The turbine initial unbalance tool for improving the test precision as claimed in claim 5, wherein a counter bore is formed in a central portion of a lower end face of the cylindrical pressure head.
7. The initial unbalanced tool of the turbine for improving the test precision of claim 4, wherein the compressing assembly further comprises a guide sleeve sleeved on the outer circle of the jacking screw rod, the guide sleeve is fixed on the rigid bridge, and the outer circle of the thread of the jacking screw rod is connected with the inner hole of the guide sleeve in a sliding fit manner after being ground.
8. The initial turbine unbalance tool for improving the test precision according to claim 7, wherein transition arc-shaped chamfers are respectively arranged at two end orifices of the guide sleeve.
9. The initial turbine unbalance tool for improving the test accuracy according to claim 1, wherein a positioning spigot is arranged on the positioning chassis, and the positioning ring is positioned on the positioning chassis through the positioning spigot and is fixed through a fastening screw.
10. The turbine initial unbalance tool for improving the test precision as claimed in claim 1, wherein a positioning hole is provided on the mounting chassis, and the positioning chassis is positioned on the positioning hole of the mounting chassis and fixed by a fastening screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122266299.3U CN216349341U (en) | 2021-09-18 | 2021-09-18 | Turbine initial unbalance tool for improving test precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122266299.3U CN216349341U (en) | 2021-09-18 | 2021-09-18 | Turbine initial unbalance tool for improving test precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216349341U true CN216349341U (en) | 2022-04-19 |
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ID=81172136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122266299.3U Active CN216349341U (en) | 2021-09-18 | 2021-09-18 | Turbine initial unbalance tool for improving test precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216349341U (en) |
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2021
- 2021-09-18 CN CN202122266299.3U patent/CN216349341U/en active Active
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