Six-degree-of-freedom synchronous adjustment supporting device
By designing a six-degree of freedom synchronous adjustment support device, the problem that existing positioning devices cannot accurately locate equipment with angular deformation is solved, and high-precision positioning and repair of bearing boxes of equipment such as steam turbines are achieved.
Patent Information
- Application Number
- CN202310940834.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-28
- Publication Date
- 2025-02-14
AI Technical Summary
The existing positioning devices can only be adjusted in four directions: up, down, left and right, and cannot accurately locate the rotating center of equipment such as steam turbines with other angles.
A six-degree of freedom synchronous adjustment support device is designed, and the six-degree of freedom adjustment of the bearing swing center is realized through the main frame body, slide chute, connecting legs, displacement adjustment frame, adjustment module and angle adjustment screw.
This device can find the rotating center line of the equipment when the bearing box of the steam turbine and other equipment is deformed, so as to achieve accurate positioning and repair, and to adjust quickly and with high accuracy.
Smart Images
Figure CN119435159A_ABST
Abstract
Description
Technical field:
[0001] The invention relates to a tool for on-site repair of large rotating equipment such as a steam turbine, and in particular to a six-degree-of-freedom synchronous adjustment support device. Background technology:
[0002] Steam turbines work under high temperature and high pressure for a long time, and often have problems such as cylinder deformation, eccentricity of the bearing seat holes at both ends, and uneven gas seal gaps, which affect the stable operation of the unit. On-site high-precision repair of turbine body deformation has always been a blank in the field of mechanical repair. The main reason is that rotary machining equipment cannot accurately position the turbine bearing box that has lost its reference. Among the existing related reference technologies, the positioning support of the Easy-Laser brand laser alignment instrument can be used as a positioning support for the bearing box of equipment such as steam turbines, but its adjustment range is limited to four directions: up, down, left and right. If the bearing box is deformed in other angular directions, the positioning device cannot find the rotation center of the equipment. Summary of the invention:
[0003] The technical problem to be solved by the present invention is to provide a six-degree-of-freedom synchronous adjustment support device, which realizes the expansion of the adjustment range of the positioning device to six degrees of freedom, and can not only perform displacement in four directions of up, down, left, and right, but also adjust the angle of the bearing rotation center, which basically covers the positioning needs of the deformation of the bearing box of equipment such as steam turbines. It overcomes the shortcomings of the existing positioning device that the adjustment range is only four degrees of freedom and cannot accurately position equipment with other angle deformations.
[0004] The technical scheme adopted by the present invention is: a six-degree-of-freedom synchronous adjustment support device, comprising a main frame; a plurality of slide grooves are circumferentially arranged on the front and back sides of the main frame, and connecting legs are installed in the plurality of slide grooves on the front or back side of the main frame, and the other side of the main frame is connected to the displacement adjustment frame by fastening screws, and an adjustment module is arranged in the displacement adjustment frame, and two zero-clearance radial rolling bearings are inlaid in the central bearing hole of the adjustment module, and slider grooves are respectively opened on the upper, lower, left and right side walls of the adjustment module, and the displacement slider is installed in the slider groove and can move along the slider groove, and the upper, lower, left and right side walls of the displacement adjustment frame are respectively connected with adjustment screws, and the adjustment screws are screwed into the screw holes of the side walls of the displacement adjustment frame and pressed against the displacement slider to limit the adjustment module, and angle adjustment screws are respectively installed in multiple directions of the adjustment module, and the front end of the angle adjustment screw presses on the main frame, and the angle of the rotation center of the zero-clearance radial rolling bearing is adjusted by adjusting the screwing of the angle adjustment screw, and after the angle of the rotation center of the zero-clearance radial rolling bearing is adjusted, the adjustment module is fixed to the main frame by the fastening screw.
[0005] Furthermore, one of the front and back surfaces of the main frame body has six slide grooves arranged at equal angles in the circumferential direction, and the other of the front and back surfaces of the main frame body has eight slide grooves arranged at equal angles in the circumferential direction.
[0006] Furthermore, an adjustment hole is provided on the connecting leg, and the connecting screw passes through the adjustment hole to connect with the screw hole in the slide slot and connects the connecting leg in the slide slot. The position of the connecting screw on the adjustment hole of the connecting leg can be adjusted to thereby adjust the position of the connecting leg in the slide slot.
[0007] Furthermore, the four corners of the displacement adjustment frame are connected to the main frame body by fastening screws respectively.
[0008] Furthermore, the adjustment module is respectively provided with angle adjustment screws in four directions: up, down, left, and right.
[0009] Furthermore, the four corners of the adjustment module are fixed to the main frame by fastening screws respectively.
[0010] Furthermore, a cylindrical pin hole is provided at the lower end of the connecting leg.
[0011] The beneficial effects of the present invention are as follows: when the bearing box of rotating equipment such as a steam turbine is deformed, the present invention can find the rotation center line of the equipment, cooperate with other repair devices to complete the repair work of the equipment, and the adjustment is convenient and fast with high adjustment accuracy. Description of the drawings:
[0012] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0013] Figure 1 It is a schematic diagram of the front structure of the present invention.
[0014] Figure 2 It is a schematic diagram of the reverse structure of the present invention. Specific implementation method:
[0015] like Figure 1 , Figure 2As shown, a six-degree-of-freedom synchronous adjustment support device includes a main frame body 4; a plurality of slide grooves 11 are circumferentially arranged on the front and back sides of the main frame body 4, and a connecting leg 8 is installed in the plurality of slide grooves 11 on the front or back side of the main frame body 4. The other side of the main frame body 4 is connected to a displacement adjustment frame 3 by a fastening screw 2. An adjustment module 10 is arranged in the displacement adjustment frame 3. Two zero-clearance radial rolling bearings 9 are embedded in the central bearing hole of the adjustment module 10. Slider grooves are respectively opened on the upper, lower, left and right side walls of the adjustment module 10. The displacement slider 6 is installed in the slider groove and can move along the slider groove. The four side walls of the displacement adjustment frame 3 are connected to the adjustment screws 5 respectively. The adjustment screws 5 are screwed into the screw holes on the side walls of the displacement adjustment frame 3 and pressed against the displacement slider 6 to limit the adjustment module 10. Angle adjustment screws 1 are installed in multiple directions of the adjustment module 10. The front end of the angle adjustment screw 1 presses against the main frame 4. The angle of the rotation center of the zero-clearance radial rolling bearing 9 is adjusted by adjusting the screwing of the angle adjustment screw 1. After the angle of the rotation center of the zero-clearance radial rolling bearing 9 is adjusted, the adjustment module 10 is fixed to the main frame 4 by the fastening screws 2.
[0016] One of the front and back surfaces of the main frame body 4 has six slide grooves 11 arranged at equal angles in the circumferential direction, and the other of the front and back surfaces of the main frame body 4 has eight slide grooves 11 arranged at equal angles in the circumferential direction.
[0017] The connecting leg 8 is provided with an adjustment hole, and the connecting screw 7 passes through the adjustment hole to connect with the screw hole in the slide slot 11 and connects the connecting leg 8 in the slide slot 11. The position of the connecting screw 7 on the adjustment hole of the connecting leg 8 can be adjusted to thereby adjust the position of the connecting leg 8 in the slide slot 11.
[0018] The four corners of the displacement adjustment frame 3 are connected to the main frame body 4 by fastening screws 2 respectively.
[0019] The adjustment module 10 is respectively provided with angle adjustment screws 1 in four directions: up, down, left, and right.
[0020] The four corners of the adjustment module 10 are fixed to the main frame 4 by fastening screws 2 respectively.
[0021] A cylindrical pin hole is provided at the lower end of the connecting leg 8.
[0022] When in use, first fix the three connecting legs 8 to the turbine bearing box by bolts according to actual conditions. The two sides of the main frame 4 are provided with slide grooves 11 with different angles to cooperate with the connecting legs 8 to adapt to the distribution of bolt holes of bearing boxes on the market.
[0023] Adjust the position of the adjustment module 10 in the four directions of up, down, left and right so that the rotation center line of the zero-clearance radial rolling bearing 9 reaches the position required for work. After adjustment, tighten the adjustment screw 5, move the displacement slider 6, so that the adjustment screw 5 presses on the displacement slider 6 and then limits the adjustment module 10 in the four directions of up, down, left and right. At this time, the position of the zero-clearance radial rolling bearing 9 in the four directions of up, down, left and right is adjusted, and then the angle of the rotation center of the zero-clearance radial rolling bearing 9 is adjusted, and the angle adjustment screw 1 is adjusted to make the rotation center line of the zero-clearance radial rolling bearing 9 consistent with the center line of the equipment. Tighten the fastening screw 2 of the adjustment module 10, fix the adjustment module 10, and make the support device of the present invention and the turbine bearing box form a whole.
[0024] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.
Claims
1. A six-degree-of-freedom synchronous adjustment support device, comprising a main frame (4); characterized in that: A plurality of slide grooves (11) are arranged circumferentially on the front and back sides of the main frame (4); a connecting leg (8) is installed in the plurality of slide grooves (11) on the front or back side of the main frame (4); the other side of the main frame (4) is connected to a displacement adjustment frame (3) by means of a fastening screw (2); an adjustment module (10) is arranged in the displacement adjustment frame (3); two zero-clearance radial rolling bearings (9) are embedded in a central bearing hole of the adjustment module (10); slider grooves are respectively opened on the upper, lower, left and right side walls of the adjustment module (10); a displacement slider (6) is installed in the slider groove and can move along the slider groove; the upper, lower, left and right side walls of the displacement adjustment frame (3) The adjusting screws (5) are connected respectively, and the adjusting screws (5) are screwed into the screw holes on the side walls of the displacement adjustment frame (3) and pressed against the displacement slider (6) to limit the adjustment module (10). The adjustment module (10) is respectively installed with angle adjustment screws (1) in multiple directions, and the front end of the angle adjustment screw (1) presses against the main frame (4). The angle of the rotation center of the zero-clearance radial rolling bearing (9) is adjusted by adjusting the screwing of the angle adjustment screw (1). After the angle of the rotation center of the zero-clearance radial rolling bearing (9) is adjusted, the adjustment module (10) is fixed to the main frame (4) by the fastening screws (2).
2. The six-degree-of-freedom synchronous adjustment support device according to claim 1, characterized in that: One of the front and back surfaces of the main frame body (4) has six slide grooves (11) arranged at equal angles in the circumferential direction, and the other of the front and back surfaces of the main frame body (4) has eight slide grooves (11) arranged at equal angles in the circumferential direction.
3. The six-degree-of-freedom synchronous adjustment support device according to claim 1, characterized in that: The connecting leg (8) is provided with an adjustment hole, and the connecting screw (7) passes through the adjustment hole to be connected with the screw hole in the slide groove (11) and connects the connecting leg (8) in the slide groove (11). The position of the connecting screw (7) on the adjustment hole of the connecting leg (8) can be adjusted to thereby adjust the position of the connecting leg (8) in the slide groove (11).
4. The six-degree-of-freedom synchronous adjustment support device according to claim 1, characterized in that: The four corners of the displacement adjustment frame (3) are respectively connected to the main frame body (4) via fastening screws (2).
5. The six-degree-of-freedom synchronous adjustment support device according to claim 1, characterized in that: The adjustment module (10) is respectively provided with angle adjustment screws (1) in four directions: up, down, left, and right.
6. The six-degree-of-freedom synchronous adjustment support device according to claim 1, characterized in that: The four corners of the adjustment module (10) are respectively fixed to the main frame (4) by means of fastening screws (2).
7. The six-degree-of-freedom synchronous adjustment support device according to claim 1, characterized in that: A cylindrical pin hole is provided at the lower end of the connecting leg (8).