CN209763942U - Speed regulator reversing valve piston rod compression and stroke plate parallelism measuring device - Google Patents
Speed regulator reversing valve piston rod compression and stroke plate parallelism measuring device Download PDFInfo
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- CN209763942U CN209763942U CN201920700854.9U CN201920700854U CN209763942U CN 209763942 U CN209763942 U CN 209763942U CN 201920700854 U CN201920700854 U CN 201920700854U CN 209763942 U CN209763942 U CN 209763942U
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- piston rod
- base
- speed regulator
- reversing valve
- stroke
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Abstract
The utility model discloses a device for measuring the compression amount of a piston rod of a reversing valve of a speed regulator and the parallelism of a stroke plate, which comprises a base, wherein one end of the base is provided with a limit pin, a piston rod is arranged in the limit pin, one end of the piston rod is provided with a roller, the roller is connected with the stroke pressing plate, and the other end of the base is provided with an end cover; the piston rod penetrates through the front end of the base and penetrates into the shaft hole, a spring is arranged in the shaft hole, one end of the spring is connected with the piston rod, and the other end of the spring is fixed at the rear end of the base; the dial indicator is connected to the end cover through a second screw. The utility model discloses can realize that a measuring device accomplishes switching-over valve piston rod compression capacity and stroke clamp plate depth of parallelism measurement work.
Description
Technical Field
The utility model relates to a hydroelectric power generation technical field, concretely relates to speed regulator switching-over valve piston rod compression and stroke board depth of parallelism measuring device.
background
Roller reversing valves are often used in hydropower station speed regulating systems to achieve a three-section closing rule of guide vanes. As shown in fig. 3, the reversing valve is a two-position four-way roller reversing valve, the stroke pressure plate is connected with the servomotor piston rod and moves simultaneously, when the reversing valve roller is in contact with the stroke pressure plate, the piston rod of the reversing valve is compressed to complete oil circuit switching of the reversing valve, and finally the opening adjusting function of the oil return pipe of the servomotor is achieved.
in the actual use process, the compression amount of the piston rod of the reversing valve and the parallelism of the stroke pressing plate need to be measured and adjusted, the compression amount of the piston rod of the reversing valve is ensured to meet the switching requirement, and the piston rod of the reversing valve is kept unchanged in the whole compression process. The existing parallelism measuring method mainly directly measures the relative distance between the piston rod and the stroke pressure plate at different positions through a dial indicator or a vernier caliper to calculate the parallelism of the stroke pressure plate, and the compression amount of the piston rod of the reversing valve is not accurately measured at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a speed regulator switching-over valve piston rod compression volume and stroke board depth of parallelism measuring device, measurement accuracy is high.
In order to solve the above problem, the to-be-solved technical scheme of the utility model is: a device for measuring the compression quantity of a piston rod of a reversing valve of a speed regulator and the parallelism of a stroke plate comprises a base, wherein one end of the base is provided with a limiting pin, a piston rod is arranged in the limiting pin, one end of the piston rod is provided with a roller, the roller is connected with the stroke pressure plate, and the other end of the base is provided with an end cover;
the piston rod penetrates through the front end of the base and penetrates into the shaft hole, a spring is arranged in the shaft hole, one end of the spring is connected with the piston rod, and the other end of the spring is fixed at the rear end of the base;
the dial indicator is connected to the end cover through a second screw.
Preferably, the roller is fixed to the piston rod by a pin.
preferably, the piston rod is provided with a limit pin.
preferably, the end cap is fixed to the base by a first screw.
Preferably, a foundation plate is arranged on one side of the base and connected with the support column through bolts.
Preferably, the pin, the roller, the piston rod, the limit pin, the base and the end cover are made of 316 stainless steel.
Preferably, the pin, the base, the piston rod, the roller and the end cap are rounded.
The technical effects of the utility model are that: 1. the utility model can realize that one measuring device can complete the work of measuring the compression quantity of the piston rod of the reversing valve and the parallelism of the stroke pressing plate;
2. Through the measurement of the dial indicator, the measurement precision is high and the measurement data is accurate under the condition of ensuring the processing precision of the measurement device;
3. In the measuring process, only the existing roller reversing valve needs to be removed, and meanwhile, the measuring device is installed, so that the measuring method is simple and rapid;
4. The structure of the roller reversing valve is the same as that of the existing roller reversing valve, so that the working state of the existing device can be well reflected, and the measurement result is more in line with the actual operation condition;
5. The measurement is carried out by directly measuring the displacement of the piston rod, the measurement method is direct and reliable, and the measurement error is reduced.
Drawings
The invention will be further explained with reference to the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an assembly view of the stroke platen parallelism measuring apparatus;
FIG. 3 is a view of the structure of the assembly of the present invention;
FIG. 4 is a three-view diagram of the components of the present invention;
FIG. 5 is a schematic view of a piston rod;
FIG. 6 is a three-view illustration of the end cap;
FIG. 7 is a view showing the structure of a spring;
FIG. 8 is a view showing the structure of a roller;
FIG. 9 is a pin construction view;
In the figure: the device comprises a pin 1, a roller 2, a piston rod 3, a limiting pin 4, a base 5, an end cover 6, a first screw 7, a second screw 8, a dial indicator 9, a spring 10, a support 11, a foundation plate 12 and a stroke pressing plate 13.
Detailed Description
as shown in fig. 1, the device for measuring the compression amount of the piston rod of the reversing valve of the speed regulator and the parallelism of the stroke plate comprises a base 5, wherein one end of the base 5 is provided with a limit pin 4, a piston rod 3 is arranged in the limit pin 4, one end of the piston rod 3 is provided with a roller 2, the roller 2 is connected with a stroke pressing plate 13, and the other end of the base 5 is provided with an end cover 6;
the piston rod 3 penetrates through the front end of the base 5 and penetrates into the shaft hole, a spring 10 is arranged in the shaft hole, one end of the spring 10 is connected with the piston rod 3, and the other end of the spring is fixed at the rear end of the base 5; the spring 10 is used for automatically resetting the piston rod 3 after compression.
The novel end cover is characterized by further comprising a dial indicator 9, wherein the dial indicator 9 is connected to the end cover 6 through a second screw 8. The dial indicator 9 is used to measure the position of the piston rod 3.
the roller 2 is fixed on the piston rod 3 through a pin 1. The roller 2 can rotate freely.
the piston rod 3 is provided with a limit pin 4. The piston rod 3 is limited by the limit pin 4, and the piston rod 3 is prevented from rotating.
The end cap 6 is fixed to the base 5 by a first screw 7.
Base 5 one side is equipped with foundatin plate 12, foundatin plate 12 passes through the bolt and is connected with pillar 11. The pillar 11 is fixed on the ground, and the foundation plate 12 and the pillar 11 play a role in fixing the whole device, so that the accuracy of the measuring result is ensured.
The pin 1, the roller 2, the piston rod 3, the limit pin 4, the base 5 and the end cover 6 are made of 316 stainless steel. The 316 stainless steel has good welding performance and corrosion resistance, and can meet the corrosion resistance requirement and the mechanical strength requirement of a measuring device.
the pin 1, the base 5, the piston rod 3, the roller 2 and the end cover 6 are rounded in surface edges and corners. By the structure, the surface of the workpiece is smooth, and people are not easy to collide and hurt.
the working principle is as follows: the stroke pressing plate 13 is connected with a servomotor piston rod and moves along with the action of the servomotor piston rod, the strut 11 is fixed on the ground, the foundation plate 12 is connected with the strut through a bolt, the roller reversing valve is connected with the foundation plate through a bolt, and when the stroke pressing plate 13 moves to be in contact with a reversing valve roller, the reversing valve piston rod is compressed, and the reversing valve is switched.
The utility model provides a device size is the same with current gyro wheel check valve size, and measuring device's 3 compressional capacities of piston rod are current gyro wheel switching-over valve piston rod compressional capacities promptly. The roller one-way valve is replaced by the device, when the stroke pressing plate 13 moves to be in contact with the roller 2, the piston rod 3 compresses the spring 10, and the compression amount of the piston rod 3 is measured through the dial indicator 9.
The device for measuring the compression quantity of the piston rod of the reversing valve of the speed regulator and the parallelism of the stroke plate comprises the following steps:
step one, dismantling the existing roller reversing valve;
step two, connecting the assembled measuring device with the foundation plate 12 through bolts;
Step three, adjusting the position of the dial indicator 9 to enable the action stroke to be positioned in the measuring range of the dial indicator 9;
Recording the reading of the dial indicator 9 before the compression;
Fifthly, operating the servomotor to enable the stroke pressing plate 13 to be at different positions, recording the readings of the dial indicator 9 at different positions, and calculating the compression amount of the piston rod of the measuring device;
And step six, calculating the parallelism of the stroke pressing plate 13 through the reading of the dial indicator 9 at different positions of the stroke pressing plate 13.
Claims (7)
1. The utility model provides a speed regulator switching-over valve piston rod compression and stroke board depth of parallelism measuring device which characterized in that: the device comprises a base (5), wherein a limiting pin (4) is arranged at one end of the base (5), a piston rod (3) is arranged in the limiting pin (4), a roller (2) is arranged at one end of the piston rod (3), the roller (2) is connected with a stroke pressing plate (13), and an end cover (6) is arranged at the other end of the base (5);
The piston rod (3) penetrates through the front end of the base (5) and penetrates into the shaft hole, a spring (10) is arranged in the shaft hole, one end of the spring (10) is connected with the piston rod (3), and the other end of the spring is fixed at the rear end of the base (5);
the novel end cover is characterized by further comprising a dial indicator (9), wherein the dial indicator (9) is connected to the end cover (6) through a second screw (8).
2. The device for measuring the compression quantity of the piston rod of the reversing valve of the speed regulator and the parallelism of the stroke plate of the speed regulator according to claim 1, is characterized in that: the roller (2) is fixed on the piston rod (3) through a pin (1).
3. the device for measuring the compression quantity of the piston rod of the reversing valve of the speed regulator and the parallelism of the stroke plate of the speed regulator according to claim 1, is characterized in that: the piston rod (3) is provided with a limit pin (4).
4. The device for measuring the compression quantity of the piston rod of the reversing valve of the speed regulator and the parallelism of the stroke plate of the speed regulator according to claim 1, is characterized in that: the end cover (6) is fixed on the base (5) through a first screw (7).
5. the device for measuring the compression quantity of the piston rod of the reversing valve of the speed regulator and the parallelism of the stroke plate of the speed regulator according to claim 1, is characterized in that: base (5) one side is equipped with foundatin plate (12), foundatin plate (12) are connected with pillar (11) through the bolt.
6. The device for measuring the compression amount of the piston rod of the reversing valve of the speed regulator and the parallelism of the stroke plate of the speed regulator according to claim 2, is characterized in that: the pin (1), the roller (2), the piston rod (3), the limiting pin (4), the base (5) and the end cover (6) are made of 316 stainless steel.
7. the device for measuring the compression amount of the piston rod of the reversing valve of the speed regulator and the parallelism of the stroke plate of the speed regulator according to claim 2, is characterized in that: the pin (1), the base (5), the piston rod (3), the roller (2) and the end cover (6) are rounded in surface edges and corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920700854.9U CN209763942U (en) | 2019-05-15 | 2019-05-15 | Speed regulator reversing valve piston rod compression and stroke plate parallelism measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920700854.9U CN209763942U (en) | 2019-05-15 | 2019-05-15 | Speed regulator reversing valve piston rod compression and stroke plate parallelism measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209763942U true CN209763942U (en) | 2019-12-10 |
Family
ID=68761575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920700854.9U Active CN209763942U (en) | 2019-05-15 | 2019-05-15 | Speed regulator reversing valve piston rod compression and stroke plate parallelism measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209763942U (en) |
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2019
- 2019-05-15 CN CN201920700854.9U patent/CN209763942U/en active Active
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