Large valve rail clamping device
By designing a large valve rail clamp, the thread direction of the clamping plate and nut is designed in opposite directions to achieve stable clamping of the guide rail, solving the problems of valve plate shaking and driving movement, and ensuring the stability of the mechanism.
Patent Information
- Application Number
- CN202422590449.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-25
AI Technical Summary
During the pre-tightening process, large vacuum valves lack clamping guide functions, resulting in valve plate shaking and driving movement mechanism squirming, affecting the stability of the mechanism.
A large valve rail clamp is designed, and the first and second clamping plates are connected to the screw rod through a nut. The nut thread direction is opposite. The driving device drives the screw rod to rotate, so that the clamping plate is close to or away, so as to realize the opening and closing of the claws, clamp the guide rails, and avoid the valve plate shaking.
It effectively reduces the shaking of the valve plate during preloading, ensures the stability of the driving movement mechanism, and avoids squirming.
Smart Images
Figure CN223294362U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum valves, in particular to a large-scale valve rail clamp. Background Art
[0002] Generally, the valve plate used to seal the valve on large vacuum valves (diameter three meters and above) is heavy and generally requires a winch or screw mechanism to move it. In order to ensure the accuracy of the valve plate movement, the valve plate needs to move along the guide rail. When the valve plate reaches the target position, the pre-tightening device pre-tightens the valve plate to ensure that the valve plate fits the valve. However, the pre-tightening device will impact the valve plate during the pre-tightening process, causing the valve plate to shake, thereby causing a certain amount of movement in the traveling moving mechanism, affecting the stability of the mechanism.
[0003] The existing crane moving mechanism is provided with a brake device. Although the brake device can lock the valve plate, it does not have the function of clamping the guide rail, so the valve plate still has the problem of shaking.
[0004] Therefore, it is necessary to propose a large-scale valve rail clamp to reduce the shaking of the valve plate. Utility Model Content
[0005] The purpose of the utility model is to solve the problem that the existing large vacuum valve does not have the function of clamping the guide rail, which causes the valve plate to shake during the pre-tightening process. A large valve rail clamp is now provided.
[0006] The technical solution of the utility model is:
[0007] A large valve rail clamp comprises a housing, a driving device is provided on the outside of the housing, a first clamping plate and a second clamping plate are provided in parallel with each other inside the housing, the first clamping plate and the second clamping plate are both rotatably connected to the housing, and two oppositely arranged claws are provided at one end of the housing, the first clamping plate is fixedly connected to one of the claws, and the second clamping plate is fixedly connected to the other claw;
[0008] A screw rod is provided in the shell, and the driving device drives the screw rod to rotate. The first clamping plate is provided with a first nut, and the second clamping plate is provided with a second nut. The screw rod is threadedly connected to the first nut and the second nut respectively. The screw directions of the first nut and the second nut are opposite. The screw rod drives the first clamping plate and the second clamping plate to move closer to or away from each other, thereby realizing the opening or closing of the two claws.
[0009] Furthermore, the first nut is rotatably connected to the first clamping plate, and the second nut is rotatably connected to the second clamping plate.
[0010] Furthermore, a pin is provided between the first nut and the first clamping plate, and the first nut is flipped relative to the first clamping plate through the pin.
[0011] Furthermore, a pin is provided between the second nut and the second clamping plate, and the second nut is flipped relative to the second clamping plate through the pin.
[0012] Furthermore, the rotation connection between the first clamping plate and the valve housing, the rotation connection between the second clamping plate and the valve housing, and the two claws are all located at the same end of the valve housing.
[0013] Furthermore, the driving device includes a motor and a coupling, the motor output shaft is connected to one end of the coupling, and the other end of the coupling is fixedly connected to the screw rod.
[0014] Furthermore, the screw rod passes through the valve housing and is rotatably connected to the valve housing.
[0015] Furthermore, the screw rod passes through the first clamping plate and the second clamping plate.
[0016] The utility model discloses a large valve rail clamp, in which a first clamping plate and a second clamping plate are provided in a shell. Since the screw threads of the first nut and the second nut have opposite directions, when the driving device drives the screw rod to rotate, the first nut and the second nut will move along the axial direction of the screw rod, and the moving directions are opposite, thereby driving the first clamping plate and the second clamping plate to approach or move away from each other. The two claws are driven by the first clamping plate and the second clamping plate to open and close, and the guide rail is loosened when the claws are opened and clamped when the claws are closed, thereby clamping the guide rail. Compared with the traditional technology, the technical solution ensures that the valve plate will not shake even if it is impacted during the pre-tightening process, and the travel moving mechanism will not move, thereby ensuring the stability of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a structural reference diagram of the utility model;
[0018] Figure 2 This is a combined view of the first clamping plate and the second clamping plate of the utility model;
[0019] Figure 3 This is the main view of the utility model;
[0020] Figure 4 It is the right view of the utility model.
[0021] Figure numerals: 1. housing; 2. coupling; 3. first clamping plate; 4. second clamping plate; 5. claw; 6. screw rod; 7. first nut; 8. second nut; 9. motor; 10. pin. DETAILED DESCRIPTION
[0022] In order to make the technical means, technical features, purpose of the utility model and technical effects achieved by the utility model easier to understand, the utility model is further explained below with reference to specific illustrations.
[0023] Example 1:
[0024] like Figure 1 and Figure 2 As shown, this embodiment provides a large valve rail clamp, including a shell 1, a driving device is provided on the outside of the shell 1, a first clamping plate 3 and a second clamping plate 4 parallel to each other are provided in the shell 1, the first clamping plate 3 and the second clamping plate 4 are both rotatably connected to the shell 1, and one end of the shell 1 is provided with two oppositely arranged claws 5, the first clamping plate 3 is fixedly connected to one of the claws 5 with screws, and the second clamping plate 4 is fixedly connected to the other claw 5 with screws, a screw rod 6 is provided in the shell 1, and the driving device drives the screw rod 6 to rotate, the first clamping plate 3 is provided with a first nut 7, and the second clamping plate 4 is provided with a second nut 8, the screw rod 6 is threadedly connected to the first nut 7 and the second nut 8 respectively, and the screw directions of the first nut 7 and the second nut 8 are opposite, and the screw rod 6 drives the first clamping plate 3 and the second clamping plate 4 to approach or move away from each other, thereby realizing the opening or closing of the two claws 5.
[0025] Preferably, Figure 3 and Figure 4 As shown, the first nut 7 is rotatably connected to the first clamping plate 3, and the second nut 8 is rotatably connected to the second clamping plate 4. Preferably, a pin 10 is provided between the first nut 7 and the first clamping plate 3, and the first nut 7 is flipped relative to the first clamping plate 3 through the pin 10. The pin 10 is located on both sides of the first nut 7. The pin 10 is screw-fixed with the first nut 7. Preferably, a pin 10 is provided between the second nut 8 and the second clamping plate 4. The second nut 8 is flipped relative to the second clamping plate 4 through the pin 10. The pin 10 is located on both sides of the second nut 8. The pin 10 It is fixedly connected with the second nut 8 with screws. When the lead screw rotates, causing the first clamping plate 3 and the second clamping plate 4 to move closer to or away from each other, the first clamping plate 3 and the second clamping plate 4 will tilt, causing the angle between the lead screw 6 and the first clamping plate 3, and between the lead screw 6 and the second clamping plate 4 to change. The pin 10 can be adjusted as the first clamping plate 3 and the second clamping plate 4 tilt, so that the first nut 7 can rotate a certain angle relative to the first clamping plate 3, and the second nut can rotate a certain angle relative to the second clamping plate 4, to ensure stable operation of the mechanism.
[0026] Preferably, the rotational connection between the first clamping plate 3 and the valve housing, the rotational connection between the second clamping plate 4 and the valve housing, and the two claws 5 are all located at the same end of the valve housing, and the screw rod 6, the first nut 7 and the second nut 8 are located at the other end of the valve housing.
[0027] Preferably, the driving device includes a motor 9 and a coupling 2, the output shaft of the motor 9 is fixedly connected to one end of the coupling 2 by screws, and the other end of the coupling 2 is fixedly connected to the screw 6 by screws, and the motor 9 transmits power to the screw 6 through the coupling 2.
[0028] Preferably, the screw rod 6 passes through the valve housing and is rotatably connected to the valve housing. The valve housing and the screw rod 6 may be rotatably connected via a bearing, or may achieve relative rotation via sliding friction.
[0029] Preferably, the screw rod 6 passes through the first clamping plate 3 and the second clamping plate 4 .
[0030] During use, a first clamping plate 3 and a second clamping plate 4 are provided in the shell 1. Since the screw threads of the first nut 7 and the second nut 8 have opposite directions, when the driving device drives the screw rod 6 to rotate, the first nut 7 and the second nut 8 will move along the axial direction of the screw rod 6, and the moving directions are opposite, thereby driving the first clamping plate 3 and the second clamping plate 4 to approach or move away from each other. The two claws 5 are opened and closed under the drive of the first clamping plate 3 and the second clamping plate 4. When the claws 5 are opened, the guide rail is released, and when the claws 5 are closed, the guide rail is clamped, thereby achieving the clamping of the guide rail. Compared with the traditional technology, this technical solution ensures that the valve plate will not shake even if it is impacted during the pre-tightening process, and will not cause the traveling moving mechanism to move, thereby ensuring the stability of the mechanism.
[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. In other words, any equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the technical scope of the present invention.
Claims
1. A large valve rail clamp, comprising a housing (1), wherein a driving device is provided on the outside of the housing (1), characterized in that: A first clamping plate (3) and a second clamping plate (4) are provided in parallel with each other in the housing (1). The first clamping plate (3) and the second clamping plate (4) are both rotatably connected to the housing (1). One end of the housing (1) is provided with two clamping claws (5) arranged opposite to each other. The first clamping plate (3) is fixedly connected to one of the clamping claws (5), and the second clamping plate (4) is fixedly connected to the other clamping claw (5). A screw rod (6) is provided in the housing (1), and a driving device drives the screw rod (6) to rotate. The first clamping plate (3) is provided with a first nut (7), and the second clamping plate (4) is provided with a second nut (8). The screw rod (6) is threadedly connected to the first nut (7) and the second nut (8), respectively. The screw directions of the first nut (7) and the second nut (8) are opposite. The screw rod (6) drives the first clamping plate (3) and the second clamping plate (4) to move closer to or farther from each other, thereby realizing the opening or closing of the two clamping claws (5).
2. The large valve rail clamp according to claim 1, characterized in that: The first nut (7) is rotatably connected to the first clamping plate (3), and the second nut (8) is rotatably connected to the second clamping plate (4).
3. The large valve rail clamp according to claim 2, characterized in that: A pin shaft (10) is provided between the first nut (7) and the first clamping plate (3), and the first nut (7) is flipped relative to the first clamping plate (3) via the pin shaft (10).
4. The large valve rail clamp according to claim 2, characterized in that: A pin shaft (10) is provided between the second nut (8) and the second clamping plate (4), and the second nut (8) is flipped relative to the second clamping plate (4) via the pin shaft (10).
5. The large valve rail clamp according to claim 1, characterized in that: The rotational connection between the first clamping plate (3) and the valve housing, the rotational connection between the second clamping plate (4) and the valve housing, and the two claws (5) are all located at the same end of the valve housing.
6. The large valve rail clamp according to claim 1, characterized in that: The driving device comprises a motor (9) and a coupling (2), wherein an output shaft of the motor (9) is connected to one end of the coupling (2), and the other end of the coupling (2) is fixedly connected to the screw rod (6).
7. The large valve rail clamp according to claim 1, characterized in that: The screw rod (6) passes through the valve housing and is rotatably connected to the valve housing.
8. The large valve rail clamp according to claim 1, characterized in that: The screw rod (6) passes through the first clamping plate (3) and the second clamping plate (4).