Vertical measurement supporting device for steam turbine partition plate

Abstract

The utility model discloses a steam turbine partition plate standing measurement supporting device which comprises a supporting seat and a sliding rail base, and the interior of the supporting seat is fixedly connected with the sliding rail base. Crawler-type drag chains are symmetrically mounted on the two sides of the surface of the sliding rail base, a servo motor is fixedly mounted on one side of the surface of each crawler-type drag chain, and a damping groove is formed in the surface of the top of the supporting seat; by arranging the sliding rail base, the crawler-type drag chain, the servo motor, the opening and closing mechanism, the lifting mechanism, the electrical control cabinet, the damping groove, the guiding device, the mechanical stroke limiting device and the electrical stroke limiting device, the measurement requirements of different sizes are met, meanwhile, the impact load caused by the falling moment of the partition plate can be reduced, and the measurement accuracy of the partition plate is greatly improved; and meanwhile, by arranging a sliding rod, a connecting block, an extending block, a clamping rod, a spring, a fixing block and a clamping groove, the guide device is stably limited, and therefore the partition plates with different thicknesses are stably guided.

Description

Technical Field

[0001] The utility model relates to the technical field of size detection, in particular to a vertical measurement support device for a steam turbine partition. Background Art

[0002] The flow clearance of the steam turbine is one of the key parameters in the steam turbine, because it directly affects the thermal efficiency and power output of the steam turbine. The size of the flow clearance is related to the relative position between the rotor and the partition, and is also affected by factors such as thermal expansion, thermal deformation, and mechanical displacement. Therefore, the accuracy and timeliness of measuring the flow clearance of the steam turbine are very important for the safe, reliable and efficient operation of the steam turbine. At present, our company mainly uses component-level optical measurement methods to measure the partition: this method uses optical equipment to calculate the geometric parameters of the partition by measuring the position, height, and spacing of the points on the partition. Through multi-point measurement and digital data processing, more accurate partition parameters can be obtained. This method needs to simulate the support method of the working state during measurement to ensure the accuracy of the measurement. The conventional measurement scheme places the partition flat on the ground. Affected by the support method and gravity, the partition will produce a large deformation, affecting the measurement accuracy.

[0003] A steam turbine diaphragm vertical measurement support device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a vertical measurement support device for a steam turbine partition, so as to solve the problem proposed in the above-mentioned background technology that relatively accurate partition parameters can be obtained by multi-point measurement and digital data processing. During measurement, this method needs to simulate the support mode of the working state to ensure the accuracy of the measurement. The conventional measurement scheme places the partition flat on the ground. Due to the influence of the support mode and gravity, the partition will produce a large deformation, which affects the measurement accuracy.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steam turbine diaphragm vertical measurement support device, comprising a support seat and a slide rail base, wherein the interior of the support seat is fixedly connected to the slide rail base;

[0006] Crawler-type drag chains are symmetrically installed on both sides of the surface of the slide rail base, a servo motor is fixedly installed on one side of the surface of the crawler-type drag chain, and a shock-absorbing groove is opened on the top surface of the support seat, and the shock-absorbing groove is fixedly connected to the slide rail base;

[0007] Also includes:

[0008] An opening and closing mechanism is provided on one side of the top surface of the crawler drag chain;

[0009] Wherein, a lifting mechanism is arranged inside the opening and closing mechanism, and an electrical control cabinet is fixedly installed on one side inside the shock-absorbing groove;

[0010] Wherein, guide devices are symmetrically arranged on both sides of the opening and closing mechanism.

[0011] Preferably, mechanical travel limit devices are symmetrically installed on both sides of the top surface of the slide rail base, and a sliding rod is penetrated and connected to a surface of one side of the mechanical travel limit device, and the sliding rod is penetrated and connected to the opening and closing mechanism.

[0012] Preferably, a plurality of electrical travel limit devices are symmetrically installed on both sides of the slide rail base.

[0013] Preferably, sliding rods are symmetrically installed on both sides of the opening and closing mechanism, and the sliding rods are connected through the guide device.

[0014] Preferably, connecting blocks are symmetrically installed on both sides of the guide device, the top surface of the connecting block is fixedly connected to an extension block, a clamping rod is connected through the middle of the extension block, a spring is sleeved on the side surface of the clamping rod close to the top, the bottom surface of the spring is fixedly connected to the extension block, and the top surface of the spring is fixedly connected to the fixed block.

[0015] Preferably, a plurality of slots are symmetrically provided on both sides of the sliding rod, and the slots are engaged with the locking rod.

[0016] Preferably, a support plate is fixedly connected to the bottom surface of the servo motor, and the support plate is fixedly connected to the slide rail base.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the steam turbine partition vertical measurement support device can meet the measurement requirements of different sizes by arranging a slide rail base, a crawler drag chain, a servo motor, an opening and closing mechanism, a lifting mechanism, an electrical control cabinet, a shock absorbing groove, a guide device, a mechanical stroke limit device and an electrical stroke limit device, and can also reduce the impact load caused by the instantaneous falling of the partition, greatly improving the accuracy of the partition measurement, and at the same time, by arranging a sliding rod, a connecting block, an extension block, a clamping rod, a spring, a fixing block and a clamping groove, the guide device can be limited and stabilized, so that a guiding and stabilizing effect can be performed on partitions of different thicknesses, and the specific contents are as follows:

[0018] 1. By setting the slide rail base, crawler drag chain, servo motor, opening and closing mechanism, lifting mechanism, electrical control cabinet, shock absorbing groove, guide device, mechanical travel limit device and electrical travel limit device, when the partition is measured and supported, it is supported by using a hanging pin. After the diameter of the partition is measured, the size of the opening and closing mechanism is adjusted to facilitate the placement of the partition. Then, according to the height of the partition, the lifting mechanism can be adjusted to determine the elevation of the partition. According to the thickness of the partition, it can be adjusted. The guide device is adjusted so that the partition can be better guided. Then the partition is lifted to the top of the mechanism and the hook is slowly lowered. After confirming that the support width of the lifting mechanism is not less than 30mm, the hook is loosened by the overhead crane and the wire rope is removed so that the partition can be measured. After the measurement is completed, the partition is hung on the wire rope, and the size of the guide device is adjusted by +50mm. The overhead crane lifts the partition to complete the measurement of the partition, thereby improving the measurement accuracy of the partition and reducing the occurrence of large deformation of the partition.

[0019] 2. By setting a sliding rod, a connecting block, an extension block, a clamping rod, a spring, a fixed block and a clamping slot, when adjusting the guide device, the staff uses tools to separate the clamping rod from the clamping slot, so that the guide device can be moved on the sliding rod, and the guide device is moved to a suitable position and the clamping rod is loosened so that the clamping rod drops under the action of the spring, so that the clamping rod and the clamping slot are re-engaged together, thereby completing the limitation of the guide device, thereby ensuring the stability of the guide device and improving the measurement efficiency of the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the overall operation structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the overall top view structure of the utility model;

[0024] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0025] In the figure: 1. support seat; 2. slide rail base; 3. crawler drag chain; 4. servo motor; 5. opening and closing mechanism; 6. lifting mechanism; 7. electrical control cabinet; 8. shock-absorbing groove; 9. guide device; 10. mechanical travel limit device; 11. slide rod; 12. electrical travel limit device; 13. slide rod; 14. connecting block; 15. extension block; 16. clamping rod; 17. spring; 18. fixing block; 19. clamping slot; 20. support plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 The utility model provides a technical solution: a turbine diaphragm vertical measurement support device, comprising a support seat 1 and a slide rail base 2, wherein the interior of the support seat 1 is fixedly connected to the slide rail base 2; crawler-type drag chains 3 are symmetrically installed on both sides of the surface of the slide rail base 2, and a servo motor 4 is fixedly installed on one side of the surface of the crawler-type drag chain 3, and a shock-absorbing groove 8 is opened on the top surface of the support seat 1, and the shock-absorbing groove 8 is fixedly connected to the slide rail base 2; further comprising: an opening and closing mechanism 5 is arranged on one side of the top surface of the crawler-type drag chain 3; wherein a lifting mechanism 6 is arranged inside the opening and closing mechanism 5, and an electrical control cabinet 7 is fixedly installed on one side of the interior of the shock-absorbing groove 8; wherein guide devices 9 are symmetrically arranged on both sides of the opening and closing mechanism 5, such as Figure 1-4 As shown, by providing a crawler-type drag chain 3, the movement of the opening and closing mechanism 5 can be driven. At the same time, by providing a guide device 9, the impact load caused by the instantaneous falling of the partition can be reduced, thereby greatly improving the accuracy of the partition measurement.

[0028] Mechanical travel limit devices 10 are symmetrically installed on both sides of the top surface of the slide rail base 2. A slide rod 11 is connected to one side of the mechanical travel limit device 10. The slide rod 11 is connected to the opening and closing mechanism 5. A plurality of electrical travel limit devices 12 are symmetrically installed on both sides of the slide rail base 2. Figure 1-4As shown, by using a hanging pin to support, after the diameter of the partition is measured, the size of the opening and closing mechanism 5 is adjusted to facilitate the placement of the partition, and then according to the height of the partition, the lifting mechanism 6 can be adjusted to determine the elevation of the partition, and according to the thickness of the partition, the guide device 9 can be adjusted to better guide the partition, and then the partition is lifted to the top of this mechanism and slowly hooked, and at the same time, after confirming that the support width of the lifting mechanism 6 is not less than 30mm, the hook is released by the overhead crane, and the wire rope is removed, so that the partition can be measured. After the measurement is completed, the partition is hung on the wire rope, and the size of the guide device 9 is adjusted by +50mm, and the overhead crane lifts the partition to complete the measurement of the partition, thereby improving the measurement accuracy of the partition and reducing the occurrence of large deformation of the partition.

[0029] Sliding rods 13 are symmetrically installed on both sides of the opening and closing mechanism 5. The sliding rods 13 are connected through the guide device 9. Connecting blocks 14 are symmetrically installed on both sides of the guide device 9. The top surface of the connecting block 14 is fixedly connected with an extension block 15. The middle of the extension block 15 is connected through a clamping rod 16. A spring 17 is sleeved on the surface of the clamping rod 16 near the top. The bottom surface of the spring 17 is fixedly connected to the extension block 15. The top surface of the spring 17 is fixedly connected to a fixed block 18. A plurality of clamping grooves 19 are symmetrically opened on both sides of the sliding rod 13. The clamping grooves 19 are clamped and connected with the clamping rod 16. A support plate 20 is fixedly connected to the bottom surface of the servo motor 4. The support plate 20 is fixedly connected to the slide rail base 2. Figure 5 As shown, the staff uses tools to separate the clamping rod 16 from the clamping slot 19, so that the guide device 9 can be moved on the sliding rod 13. When the guide device 9 is moved to a suitable position, the clamping rod 16 is loosened, so that the clamping rod 16 drops under the action of the spring 17, so that the clamping rod 16 and the clamping slot 19 are re-engaged together, thereby completing the limitation of the guide device 9, thereby ensuring the stability of the guide device 9, thereby improving the measurement efficiency of the partition. At the same time, the spring 17 is a rubber composite spring in the prior art, and the elastic force of the rubber composite spring is relatively large, so that the clamping rod 16 can be more tightly engaged with the clamping slot 19 under the action of the spring 17.

[0030] Working principle: Before using this steam turbine diaphragm vertical measurement support device, it is necessary to first check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 5As shown, first, when measuring and supporting the partition, it is supported by using a hanging pin. After the diameter of the partition is measured, the size of the opening and closing mechanism 5 is adjusted to facilitate the placement of the partition. Then, according to the height of the partition, the lifting mechanism 6 can be adjusted to determine the elevation of the partition. According to the thickness of the partition, the guide device 9 can be adjusted to better guide the partition. Then, the partition is lifted to the top of this mechanism and the hook is slowly dropped. After confirming that the support width of the lifting mechanism 6 is not less than 30mm, the hook is released by the overhead crane and the wire rope is removed so that the partition can be measured. After the measurement is completed, the partition is hung on the wire rope, and the size of the guide device 9 is adjusted by +50mm. The overhead crane lifts the partition to complete the measurement of the partition, thereby improving the measurement accuracy of the partition and reducing the occurrence of large deformation of the partition.

[0031] Secondly, the staff uses tools to separate the clamping rod 16 from the clamping slot 19, so that the guide device 9 can be moved on the sliding rod 13. When the guide device 9 is moved to a suitable position, the clamping rod 16 is loosened so that the clamping rod 16 drops under the action of the spring 17, so that the clamping rod 16 and the clamping slot 19 are re-engaged together, thereby completing the limitation of the guide device 9, thereby ensuring the stability of the guide device 9 and improving the measurement efficiency of the partition.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam turbine diaphragm vertical measurement support device, comprising a support seat (1) and a slide rail base (2), wherein the interior of the support seat (1) is fixedly connected to the slide rail base (2); Crawler-type drag chains (3) are symmetrically installed on both sides of the surface of the slide rail base (2), a servo motor (4) is fixedly installed on one side of the surface of the crawler-type drag chain (3), and a shock-absorbing groove (8) is opened on the top surface of the support seat (1), and the shock-absorbing groove (8) is fixedly connected to the slide rail base (2); It is characterized in that Also includes: An opening and closing mechanism (5) is provided on one side of the top surface of the crawler drag chain (3); Wherein, a lifting mechanism (6) is arranged inside the opening and closing mechanism (5), and an electrical control cabinet (7) is fixedly installed on one side inside the shock-absorbing groove (8); Wherein, guide devices (9) are symmetrically arranged on both sides of the opening and closing mechanism (5).

2. A steam turbine diaphragm vertical measurement support device according to claim 1, characterized in that: Mechanical travel limit devices (10) are symmetrically installed on both sides of the top surface of the slide rail base (2), and a slide rod (11) is connected through one side surface of the mechanical travel limit device (10), and the slide rod (11) is connected through the opening and closing mechanism (5).

3. The device for measuring and supporting a standing steam turbine diaphragm according to claim 1, characterized in that: A plurality of electrical travel limit devices (12) are symmetrically mounted on both sides of the slide rail base (2).

4. A steam turbine diaphragm vertical measurement support device according to claim 1, characterized in that: Sliding rods (13) are symmetrically mounted on both sides of the opening and closing mechanism (5), and the sliding rods (13) are connected through the guide device (9).

5. A steam turbine diaphragm vertical measurement support device according to claim 4, characterized in that: Connecting blocks (14) are symmetrically mounted on both sides of the guide device (9); an extension block (15) is fixedly connected to the top surface of the connecting block (14); a clamping rod (16) is connected through the middle of the interior of the extension block (15); a spring (17) is sleeved on the surface of one side of the clamping rod (16) close to the top; the bottom surface of the spring (17) is fixedly connected to the extension block (15); and the top surface of the spring (17) is fixedly connected to a fixing block (18).

6. A steam turbine diaphragm vertical measurement support device according to claim 5, characterized in that: A plurality of clamping grooves (19) are symmetrically provided on both sides of the sliding rod (13), and the clamping grooves (19) are clamped and connected with the clamping rod (16).

7. The device for measuring and supporting a standing steam turbine diaphragm according to claim 1, characterized in that: A support plate (20) is fixedly connected to the bottom surface of the servo motor (4), and the support plate (20) is fixedly connected to the slide rail base (2).

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