CN215357158U - Synchronous screw-up device of stud - Google Patents
Synchronous screw-up device of stud Download PDFInfo
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- CN215357158U CN215357158U CN202121843123.3U CN202121843123U CN215357158U CN 215357158 U CN215357158 U CN 215357158U CN 202121843123 U CN202121843123 U CN 202121843123U CN 215357158 U CN215357158 U CN 215357158U
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- stud
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- guide rail
- shaft
- rotating shaft
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Abstract
The utility model relates to a synchronous stud tightening device which comprises a rotating shaft and a plurality of guide rails, wherein one end of each guide rail is connected with the rotating shaft, the other end of each guide rail extends in a divergent manner in a direction far away from the rotating shaft, and each guide rail is provided with a hydraulic stretcher which can move along the corresponding guide rail. The utility model solves the technical problems that a plurality of studs on a large flange cannot be synchronously screwed, and the pre-tightening force of each screwed stud is not uniform.
Description
Technical Field
The utility model relates to the field of mechanical assembly, in particular to a synchronous stud tightening device, which is suitable for large circular flanges.
Background
At the present stage, when a large flange is assembled (such as shield machine main drive integrated assembly, large three-row cylindrical roller bearing assembly, marine bearing assembly and the like), if the pretightening force of a high-strength bolt on the flange is too large, overstretching is easy to occur, so that stress concentration on the stud is caused to fracture; if the pretightening force is insufficient, the stud is easy to loosen; when alternating load is borne, the stud is easy to fatigue and break; additionally, a post-tightened stud may also have an effect on a previously tightened stud.
At present, as shown in fig. 1, a hydraulic stretcher is mainly used manually to sequentially and respectively tighten studs installed on a flange 10, but a flange 10 with a diameter of more than 3m is provided with hundreds of or even more stud installation holes 20, and the studs needed when the flange 10 is installed are generally hundreds of studs.
Aiming at the problems that a plurality of studs on a large flange cannot be synchronously screwed down and the pretightening force of each screwed stud is not uniform in the related technology, an effective solution is not provided at present.
Therefore, the inventor provides a synchronous stud tightening device by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a synchronous stud tightening device which can synchronously tighten a plurality of studs on a large flange, greatly improve the working efficiency and reduce the labor intensity of workers.
The utility model also aims to provide a synchronous stud tightening device, wherein each synchronously tightened stud has the same pretightening force, so that the influence of human factors is reduced, and the pretightening force among the studs is more uniform and more consistent.
The purpose of the utility model can be realized by adopting the following technical scheme:
the utility model provides a synchronous stud tightening device which comprises a rotating shaft and a plurality of guide rails, wherein one end of each guide rail is connected with the rotating shaft, the other end of each guide rail extends in a divergent manner in a direction far away from the rotating shaft, hydraulic stretchers are arranged on the guide rails respectively, and the hydraulic stretchers can move along the corresponding guide rails.
In a preferred embodiment of the present invention, the rotating shaft is disposed along a vertical direction, each of the guide rails is a straight rail disposed along a horizontal direction, and one end of each of the guide rails is connected to a bottom end of the rotating shaft.
In a preferred embodiment of the present invention, each of the guide rails is centrally and symmetrically distributed with the rotating shaft as a center point.
In a preferred embodiment of the present invention, at least one of the guide rails is rotatably connected to a bottom end of the rotating shaft, so that the guide rail can rotate around the rotating shaft as a central axis.
In a preferred embodiment of the present invention, the stud synchronous tightening device further includes a pump station, and an output end of the pump station is connected to each of the hydraulic tensioners.
In a preferred embodiment of the present invention, the stud synchronous tightening device further includes a controller, and a control signal output end of the controller is connected to a control end of the pump station.
In a preferred embodiment of the present invention, the stud synchronous tightening device further includes a first motor, the first motor is disposed above the rotating shaft, and an output shaft of the first motor is connected to a top end of the rotating shaft.
In a preferred embodiment of the present invention, a control signal output terminal of the controller is electrically connected to a control terminal of the first motor.
In a preferred embodiment of the present invention, the stud synchronous tightening device further includes a plurality of second motors, and output shafts of the second motors are respectively connected to the corresponding guide rails.
In a preferred embodiment of the present invention, a control signal output end of the controller is electrically connected to a control end of each of the second motors.
In a preferred embodiment of the present invention, the stud synchronous tightening device further includes a mounting bracket, the rotating shaft is rotatably disposed on the mounting bracket, and the bottom of the mounting bracket is fixed to the mounting platform.
From the above, the synchronous stud tightening device of the utility model has the characteristics and advantages that: the guide rail structure comprises a plurality of guide rails, wherein one ends of the plurality of guide rails are connected to a rotating shaft, the other ends of the guide rails are divergently extended in the direction away from the rotating shaft, and hydraulic stretchers are respectively arranged on the guide rails, the positions of the hydraulic stretchers on the guide rails can be respectively changed by controlling the motion states of the guide rails, and the positions of the hydraulic stretchers relative to stud mounting holes on a flange can be adjusted by rotating the rotating shaft, so that studs at different diameter positions can be simultaneously screwed by the hydraulic stretchers, synchronous screwing of the studs can be guaranteed, the influence of human factors is reduced, the pre-tightening force of the studs is more uniform and consistent, the service life of the flange is effectively prolonged, and the risk of stud fracture caused by inconsistent pre-tightening force of the studs is reduced.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1: the position distribution schematic diagram of stud mounting holes on a large flange in the prior art is shown.
FIG. 2: is a schematic structural diagram in a top view of the synchronous stud tightening device.
FIG. 3: is a schematic view of the front view structure of the stud synchronous tightening device.
FIG. 4: the utility model discloses a signal transmission schematic diagram of a stud synchronous tightening device.
FIG. 5: the utility model relates to a control structure block diagram of a synchronous stud tightening device.
The reference numbers in the background art are:
10. a flange; 20. And (6) stud mounting holes.
The reference numbers in the utility model are:
1. a guide rail; 2. A hydraulic stretcher;
3. a rotating shaft; 4. A pump station;
5. a controller; 6. A first motor;
7. a second motor.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in fig. 2 and 3, the utility model provides a synchronous stud tightening device, which comprises a rotating shaft 3 and a plurality of guide rails 1, wherein the rotating shaft 3 is arranged along the vertical direction, each guide rail 1 is a straight track arranged along the horizontal direction, one end of each guide rail 1 is connected with the bottom end of the rotating shaft 3, the other end of each guide rail 1 extends in a uniformly-divergent manner in the direction away from the rotating shaft 3, each guide rail 1 is provided with a hydraulic stretcher 2, and each hydraulic stretcher 2 can move along the corresponding guide rail 1.
One end of each guide rail 1 is connected to a rotating shaft 3, the other end of each guide rail 1 extends in a direction far away from the rotating shaft 3 in a divergent mode, each guide rail 1 is provided with a hydraulic stretcher 2, and the position of each hydraulic stretcher 2 relative to each stud mounting hole on the flange can be changed (the adjustment of the radial position of each hydraulic stretcher 2 relative to the flange) through controlling the motion state of each guide rail 1; in addition, the positions of the hydraulic stretchers 2 relative to the stud mounting holes on the flange can be adjusted (the positions of the hydraulic stretchers 2 relative to the circumferential position of the flange) by controlling the rotation of the rotating shaft 3, so that the studs in different diameter positions can be simultaneously screwed by the hydraulic stretchers 2, synchronous screwing of the studs can be guaranteed, the influence of human factors is reduced, the pre-tightening force of the studs is more uniform and consistent, the service life of the flange is effectively prolonged, and the risk of stud fracture caused by inconsistent pre-tightening force of the studs is reduced.
Further, as shown in fig. 2, each guide rail 1 is distributed in a central symmetry manner with the rotating shaft 3 as a central point, so that the guide rails can be matched and aligned with the positions of the stud mounting holes on the flange, and the requirement for synchronously screwing the studs is met.
In a preferred embodiment of the present invention, at least one guide rail is rotatably connected to the bottom end of the rotating shaft, so that the guide rail can rotate around the rotating shaft as a central axis. Therefore, under the condition that the positions of the stud mounting holes on the flange are irregular, the angle rotation angle of the guide rail can be finely adjusted, so that the studs can be accurately screwed into the stud mounting holes, and accurate mounting of the studs is ensured. Of course, different numbers of guide rails can be arranged according to requirements to be rotatably connected with the rotating shaft so as to meet the requirement of screwing the stud.
In an alternative embodiment of the present invention, as shown in fig. 4 and 5, the stud synchronous tightening device further includes a pump station 4 and a controller 5, an output end of the pump station 4 is connected to each hydraulic stretcher 2, and a control signal output end of the controller 5 is connected to a control end of the pump station 4. The output pressure of the pump station 4 is controlled by the controller 5, so that the stretching pressure of each hydraulic stretcher 2 is controlled according to actual needs.
In an alternative embodiment of the present invention, as shown in fig. 5, the stud synchronous tightening device further includes a first motor 6, the first motor 6 is disposed above the rotating shaft 3, an output shaft of the first motor 6 is connected to a top end of the rotating shaft 3, and a control signal output end of the controller 5 is electrically connected to a control end of the first motor 6. The working state of the first motor 6 is controlled by the controller 5, so that the rotating direction and the angle of the rotating shaft 3 are controlled according to actual requirements, and the requirement for adjusting the circumferential position of each hydraulic stretcher 2 relative to the flange is met.
In an alternative embodiment of the present invention, as shown in fig. 5, the stud synchronous tightening device further includes a plurality of second motors 7, an output shaft of each second motor 7 is connected to a corresponding guide rail 1, and a control signal output terminal of the controller 5 is electrically connected to a control terminal of each second motor 7. The controller 5 is used for controlling the working state of each second motor 7, so that the motion state of each guide rail 1 is controlled according to actual needs, and the adjustment requirement of each hydraulic stretcher 2 relative to the radial position of the flange is met.
Specifically, guide rail 1 is connected between driving shaft and driven shaft, and the output shaft and the driving shaft of second motor 7 are connected, can drive the driving shaft through second motor 7 and rotate, and then cooperate the motion of control guide rail 1 through driving shaft and driven shaft. Of course, other transmission mechanisms can be arranged between the second motor 7 and the guide rail 1, and the second motor 7 can drive the guide rail 1 to move.
In an optional embodiment of the present invention, the stud synchronous tightening device further includes a mounting bracket (not shown), the rotating shaft 3 is rotatably disposed on the mounting bracket, the bottom of the mounting bracket is fixed on the mounting platform, and the mounting bracket plays a role in supporting and fixing the rotating shaft 3 and each guide rail 1, so as to ensure stable operation of the device.
The utility model is mainly applied to the industries of shield machines, wind power equipment, port hoisting equipment and the like, is not only suitable for screwing and disassembling the stud, but also is used for disassembling and assembling rotatable workpieces such as bolts and the like.
In one embodiment of the utility model, as shown in fig. 2, the number of the guide rails 1 is eight, and one hydraulic stretcher 2 is installed on each guide rail 1. In the prior art, workers operate the hydraulic stretchers to screw the studs, and need to simultaneously operate by multiple persons to screw two or four groups of studs at the opposite angle positions of the flange, but the utility model can simultaneously complete the screwing work of eight groups of studs only by one person, thereby greatly improving the working efficiency, and uniformly controlling the working state of each hydraulic stretcher 2 through the pump station 4, effectively reducing the influence of manual operation, ensuring that the pretightening force among the studs is more consistent and uniform, and greatly prolonging the service life of equipment. In addition, the whole process staff can carry out remote control through the controller, intelligent and synchronous assembly of driving is achieved, and the effects of high-quality and high-speed assembly are achieved.
The synchronous stud tightening device has the characteristics and advantages that:
the synchronous stud tightening device can drive the corresponding hydraulic stretchers 2 to be positioned on the guide rails 1 through the guide rails 1, and further change the positions of the hydraulic stretchers 2 relative to stud mounting holes on a flange; in addition, the positions of the hydraulic stretchers 2 relative to the stud mounting holes on the flange can be adjusted by controlling the rotating shaft 3 to rotate, so that studs in positions with different diameters can be simultaneously screwed, synchronous screwing of the studs can be guaranteed, the screwing efficiency of a large number of studs on a large flange is effectively improved, and the labor intensity of workers is reduced;
according to the synchronous stud tightening device, the pump station 4 is used for synchronously controlling the hydraulic stretchers 2, workers do not need to independently operate each hydraulic stretcher 2, the influence of human factors is reduced, the pre-tightening force of each stud is more uniform and consistent, the risk of stud fracture caused by inconsistent pre-tightening force of each stud is reduced, and the service life of equipment is effectively prolonged.
The synchronous stud tightening device disclosed by the utility model has the advantages that the positions of the hydraulic tensioners 2 are adjusted, and the operations of tightening the bolts are remotely controlled by the controller, so that the intelligent and synchronous driving assembly is realized, and the effects of high-quality and high-speed assembly are achieved.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the utility model should fall within the protection scope of the utility model.
Claims (11)
1. The synchronous stud tightening device is characterized by comprising a rotating shaft and a plurality of guide rails, wherein one end of each guide rail is connected with the rotating shaft, the other end of each guide rail extends in a divergent manner in the direction far away from the rotating shaft, a hydraulic stretcher is arranged on each guide rail, and each hydraulic stretcher can move along the corresponding guide rail.
2. The synchronous stud tightening apparatus according to claim 1, wherein the shaft is disposed in a vertical direction, each of the guide rails is a straight rail disposed in a horizontal direction, and one end of each of the guide rails is connected to a bottom end of the shaft.
3. The stud synchronous tightening apparatus according to claim 2, wherein each of the guide rails is arranged to be centrosymmetric about the rotation axis.
4. The stud synchronous tightening apparatus according to claim 2, wherein at least one of the guide rails is rotatably connected to a bottom end of the rotary shaft so that the guide rail can rotate about the rotary shaft.
5. The stud synchronous tightening apparatus according to claim 1, further comprising a pump station, an output end of the pump station being connected to each of the hydraulic tensioners.
6. The stud synchronous tightening apparatus according to claim 5, further comprising a controller, wherein a control signal output terminal of the controller is connected to a control terminal of the pump station.
7. The stud synchronous tightening device according to claim 6, further comprising a first motor disposed above the shaft, an output shaft of the first motor being connected to a top end of the shaft.
8. The stud synchronous tightening apparatus of claim 7, wherein a control signal output of the controller is electrically connected to a control terminal of the first motor.
9. The synchronous stud tightening apparatus according to claim 6, further comprising a plurality of second motors, an output shaft of each of the second motors being connected to a corresponding one of the guide rails.
10. The stud synchronous tightening apparatus of claim 9, wherein a control signal output of the controller is electrically connected to a control terminal of each of the second motors.
11. The synchronous stud tightening apparatus of claim 1, further comprising a mounting bracket, wherein the shaft is rotatably disposed on the mounting bracket, and wherein a bottom of the mounting bracket is fixed to a mounting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121843123.3U CN215357158U (en) | 2021-08-09 | 2021-08-09 | Synchronous screw-up device of stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121843123.3U CN215357158U (en) | 2021-08-09 | 2021-08-09 | Synchronous screw-up device of stud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215357158U true CN215357158U (en) | 2021-12-31 |
Family
ID=79616590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121843123.3U Active CN215357158U (en) | 2021-08-09 | 2021-08-09 | Synchronous screw-up device of stud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215357158U (en) |
-
2021
- 2021-08-09 CN CN202121843123.3U patent/CN215357158U/en active Active
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