A cylindrical high-pressure cylinder positioning structure

Abstract

The present invention relates to a cylindrical high-pressure cylinder positioning structure, which is arranged between the bearing seat boss and the high-pressure cylinder vertical pin limiter, and includes a fixed pin and a limit assembly. The fixed pin includes an integrally formed first fixed portion and a second fixed portion, one end of the first fixed portion and one end of the second fixed portion form an angle, the bottom surface of the end of the first fixed portion away from the second fixed portion is in contact with the top surface of the bearing seat boss, and one side surface of the second fixed portion is in contact with the high-pressure cylinder vertical pin limiter. The limit assembly is arranged between the second fixed portion and the bearing seat boss, and the total width of the limit assembly and the second fixed portion matches the opening distance between the bearing seat boss and the high-pressure cylinder vertical pin limiter. Compared with the prior art, the present invention can limit the left and right movement of the first high-pressure cylinder vertical pin limiter and the second high-pressure cylinder vertical pin limiter during the return of the vertical pins to the factory for processing.

Description

Technical Field

[0001] The present invention relates to the field of maintenance technology, in particular to a barrel-type high-pressure cylinder positioning structure. Background Art

[0002] SAIC Siemens' barrel-type high-pressure cylinders have been widely used in my country. During the maintenance of steam turbines, the barrel-type high-pressure cylinders must remove the connecting cover nuts and cut off all connecting pipes, then lift them off and transport them to a professional site for disassembly and maintenance. Therefore, the reinstallation and positioning of the high-pressure cylinder will directly affect the safety and economy of the unit operation. The entire positioning operation must be strictly controlled to ensure accuracy.

[0003] The adjustment end and the electrical end of this type of cylindrical high-pressure cylinder are both provided with two vertical pins 4 to limit the left and right movement of the first high-pressure cylinder vertical pin limit 1 and the second high-pressure cylinder vertical pin limit 3. However, since this type of cylindrical high-pressure cylinder needs to be positioned by a cylinder collision, the vertical pins 4 need to be removed before the left and right cylinder collision process. After the cylinder collision positioning is completed, the processing amount of the vertical pins 4 is calculated and the pins are returned to the factory for processing. The return processing of the vertical pins 4 takes a certain amount of time, and the maintenance work will not be interrupted during this period. However, there is no vertical pin 4 set between the first high-pressure cylinder vertical pin limit 1 and the bearing seat boss 2, and between the second high-pressure cylinder vertical pin limit 3 and the bearing seat boss 2 to limit the left and right movement of the first high-pressure cylinder vertical pin limit 1 and the second high-pressure cylinder vertical pin limit 3. The cylindrical high-pressure cylinder will have the risk of left and right position deviation. Therefore, the existing technology lacks a high-pressure cylinder positioning structure that can temporarily replace the vertical pin 4 to limit the left and right movement of the first high-pressure cylinder vertical pin limit 1 and the second high-pressure cylinder vertical pin limit 3. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a cylindrical high-pressure cylinder positioning structure that can limit the left and right movement of the first high-pressure cylinder vertical pin limit and the second high-pressure cylinder vertical pin limit during the processing of the vertical pin returned to the factory.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] The present invention provides a cylindrical high-pressure cylinder positioning structure, which is arranged between the bearing seat boss and the high-pressure cylinder vertical pin limit, and includes a fixing pin and a limiting assembly. The fixing pin includes an integrally formed first fixing part and a second fixing part, one end of the first fixing part and one end of the second fixing part form an angle, the bottom surface of the first fixing part away from the end of the second fixing part is in contact with the top surface of the bearing seat boss, and a side surface of the second fixing part is in contact with the high-pressure cylinder vertical pin limit, the limiting assembly is arranged between the second fixing part and the bearing seat boss, and the total width of the limiting assembly and the second fixing part is matched with the opening distance between the bearing seat boss and the high-pressure cylinder vertical pin limit.

[0007] Preferably, the limiting assembly includes a cushion block, at least one gasket, and a bolt that passes through the cushion block and the gasket in sequence and is fixed in the second fixing portion.

[0008] Preferably, the cushion block, the gasket and the second fixing portion are all provided with second screw holes matched with bolts.

[0009] Preferably, the thickness of the gasket is 0.1 mm to 5 mm.

[0010] Preferably, the thickness of the pad is 20 mm to 25 mm.

[0011] Preferably, the bolt is a countersunk bolt or a hexagon socket bolt.

[0012] Preferably, the limiting assembly includes a limiting pin, the contact surface between the limiting pin and the second fixing portion is a first inclined surface, and the contact surface between the second fixing portion and the limiting pin is a second inclined surface matching the first inclined surface.

[0013] Preferably, a handle is provided at the bottom of the limiting latch.

[0014] Preferably, the limiting latch and the second fixing portion are both wedge structures.

[0015] Preferably, a first screw hole cooperating with a pin puller is provided on the top of the first fixing portion.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] (1) The cylindrical high-pressure cylinder positioning structure provided by the present invention is provided with a first fixing part, a second fixing part and a limit assembly, and the total width of the limit assembly and the second fixing part is matched with the gap spacing between the bearing seat boss and the high-pressure cylinder vertical pin limit, so that when the vertical pin is returned to the factory for processing, the limit assembly can be first fixed on the second fixing part, and the entire cylindrical high-pressure cylinder positioning structure can be fixed from top to bottom between the bearing seat boss and the high-pressure cylinder vertical pin limit, or the fixing pin can be first placed between the bearing seat boss and the high-pressure cylinder vertical pin limit, and then the limit assembly can be inserted from bottom to top between the second fixing part and the bearing seat boss to achieve a tight fixation between the bearing seat boss and the high-pressure cylinder vertical pin limit, thereby solving the problem in the prior art that the cylindrical high-pressure cylinder is prone to left and right position deviation due to the lack of a positioning structure when the vertical pin is returned to the factory for processing.

[0018] (2) The cylindrical high-pressure cylinder positioning structure provided by the present invention can achieve fine adjustment by setting at least one gasket, so that the positioning structure of the present invention is suitable for high-pressure cylinders with different opening spacings. By setting a gasket and setting a bolt that passes through the gasket and the gasket in sequence and is fixed in the second fixing part, the problem of deformation of the gasket due to uneven force can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the assembly structure of a cylindrical high-pressure cylinder positioning structure, a bearing seat boss, and a high-pressure cylinder vertical pin limiter provided in this embodiment.

[0020] Figure 2 This is a structural schematic diagram of the barrel-type high-pressure cylinder positioning structure shown in Example 1.

[0021] Figure 3 This is a structural schematic diagram of the barrel-type high-pressure cylinder positioning structure shown in Example 2.

[0022] Figure 4 It is a schematic diagram of the assembly structure of the neutral pin, the bearing seat boss and the high-pressure cylinder neutral pin limiter in the prior art.

[0023] Description of the marks in the figure:

[0024] 1. First high-pressure cylinder vertical pin limiter, 2. Bearing seat boss, 3. Second high-pressure cylinder vertical pin limiter, 4. Vertical pin, 5. Fixing pin, 6. Limiting assembly, 501. First fixing part, 502. Second fixing part, 503. First screw hole, 601. Gasket, 602. Spacer, 603. Second screw hole, 604. Limiting pin, 605. Handle. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example:

[0027] refer to Figure 1 As shown, this embodiment provides a cylindrical high-pressure cylinder positioning structure, which is arranged between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit, including a fixing pin 5 and a limiting assembly 6. The fixing pin 5 includes an integrally formed first fixing portion 501 and a second fixing portion 502. One end of the first fixing portion 501 and one end of the second fixing portion 502 form an angle. The top of the first fixing portion 501 is provided with a first screw hole 503 that cooperates with a pin puller. The bottom surface of the first fixing portion 501 away from one end of the second fixing portion 502 is in contact with the top surface of the bearing seat boss 2, and one side surface of the second fixing portion 502 is in contact with the high-pressure cylinder vertical pin limit. The limiting assembly 6 is arranged between the second fixing portion 502 and the bearing seat boss 2, and the total width of the limiting assembly 6 and the second fixing portion 502 is matched with the opening distance between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit.

[0028] Through the above technical solution, when the vertical pin 4 is returned to the factory for processing and there is no positioning structure between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit, the barrel-type high-pressure cylinder positioning structure provided in this embodiment is set between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit. Specifically, the limiting component 6 can be fixed on the second fixing part 502 first, and then the top of the first fixing part 501 can be knocked to fix the entire barrel-type high-pressure cylinder positioning structure from top to bottom between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit. The fixing pin 5 can also be placed first. Insert it between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit, and then insert the limit assembly 6 from bottom to top between the second fixing part 502 and the bearing seat boss 2, so as to achieve tight fixation between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit, thereby solving the problem in the prior art that the vertical pin 4 is returned to the factory for processing and lacks a positioning structure, which makes the cylindrical high-pressure cylinder prone to left and right position deviation. After the vertical pin 4 is returned to the factory for processing, the pin puller is inserted into the first screw hole 503, the positioning structure is pulled out, and the processed vertical pin is reinserted.

[0029] Example 1

[0030] The limiting assembly 6 includes a cushion block 602 , at least one washer 601 , and a bolt that passes through the cushion block 602 and the washer 601 in sequence and is fixed in the second fixing portion 502 .

[0031] As an optional implementation, the cushion block 602 , the gasket 601 and the second fixing portion 502 are all provided with second screw holes 603 that cooperate with the bolts.

[0032] When using the limit assembly 6 provided in Example 1 for positioning, first determine the opening distance between the bearing seat boss 2 and the high-pressure cylinder pin limit, and determine the number of gaskets 601 required based on the opening distance. After confirmation, drive the bolts into the pad 602 and all gaskets 601 in sequence, and fix them in the second fixing part 502, so that the fixing pin 5 and the limit assembly 6 are fixedly connected, and the entire positioning structure is inserted from top to bottom between the bearing seat boss 2 and the high-pressure cylinder pin limit, and the entire positioning structure is fixed between the bearing seat boss 2 and the high-pressure cylinder pin limit by knocking the top of the first fixing part 501.

[0033] As an optional embodiment, the thickness of the gasket 601 is 0.1mm to 5mm. By selecting gaskets of different thicknesses or adjusting the number of gaskets 601, the spacing can be finely adjusted so that the entire positioning structure is suitable for fixing cylindrical high-pressure cylinders with different opening spacings. For example, the spacing s = opening spacing - thickness of the second fixing part 502 - thickness of the gasket = 5mm. You can choose to stack a 3mm gasket 601 and a 2mm gasket together to achieve a 5mm adjustment, or you can choose to use 5 1mm gaskets 601 for adjustment.

[0034] As an optional embodiment, since the bolts are directly driven into the gasket 601, the gasket 601 will be deformed due to its thinness and uneven force. By setting the thickness of the pad 602 to 20mm~25mm, the bolts are driven into the pad 602 and then into the gasket 601, the problem of deformation due to uneven force can be avoided.

[0035] Example 2

[0036] The limiting assembly 6 includes a limiting pin 604 . The contact surface between the limiting pin 604 and the second fixing portion 502 is a first inclined surface. The contact surface between the second fixing portion 502 and the limiting pin 604 is a second inclined surface that matches the first inclined surface.

[0037] When using the limit assembly 6 provided in Example 2 for positioning, the fixing pin 5 is inserted from top to bottom between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit, so that the bottom surface of the end of the first fixing part 501 away from the second fixing part 502 is in contact with the top surface of the bearing seat boss 2, and then the first inclined surface is aligned with the second inclined surface, and the limit pin 604 is inserted from bottom to top along the second inclined surface and tightened to achieve fixation between the bearing seat boss 2 and the high-pressure cylinder vertical pin limit.

[0038] As an optional embodiment, a handle 605 is provided at the bottom of the limiting latch 604. The handle 605 is struck with a hammer to tightly insert the limiting latch 604 between the second fixing portion 502 and the bearing seat boss 2.

[0039] As an optional implementation, the limiting latch 604 and the second fixing portion 502 are both wedge structures.

[0040] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A cylindrical high-pressure cylinder positioning structure, wherein the adjustment end and the electric end of the cylindrical high-pressure cylinder are both provided with two vertical pins (4) to limit the left and right movement of the first high-pressure cylinder vertical pin limit (1) and the second high-pressure cylinder vertical pin limit (3), characterized in that: The cylindrical high-pressure cylinder positioning structure is arranged between the bearing seat boss (2) and the high-pressure cylinder vertical pin limiter, and includes a fixing pin (5) and a limiting assembly (6). The fixing pin (5) includes an integrally formed first fixing portion (501) and a second fixing portion (502). One end of the first fixing portion (501) and one end of the second fixing portion (502) form an angle. The bottom surface of the end of the first fixing portion (501) away from the second fixing portion (502) is in contact with the top surface of the bearing seat boss (2). One side surface of the second fixing portion (502) is in contact with the high-pressure cylinder vertical pin limiter. The limiting assembly (6) is arranged between the second fixing portion (502) and the bearing seat boss (2), and the total width of the limiting assembly (6) and the second fixing portion (502) matches the gap spacing between the bearing seat boss (2) and the high-pressure cylinder vertical pin limiter. When the vertical pin (4) is returned to the factory for processing and a positioning structure is missing between the bearing seat boss (2) and the high-pressure cylinder vertical pin limiter, the cylindrical high-pressure cylinder positioning structure is arranged between the bearing seat boss (2) and the high-pressure cylinder vertical pin limiter. The arrangement process includes: First, fix the limit assembly (6) on the second fixing part (502), and then fix the entire cylindrical high-pressure cylinder positioning structure from top to bottom between the bearing seat boss (2) and the high-pressure cylinder vertical pin limiter by knocking the top of the first fixing part (501); Alternatively, the fixing pin (5) is first placed between the bearing seat boss (2) and the high-pressure cylinder vertical pin limiter, and then the limiter assembly (6) is inserted from bottom to top between the second fixing portion (502) and the bearing seat boss (2), so as to achieve a tight fixation between the bearing seat boss (2) and the high-pressure cylinder vertical pin limiter; After the vertical pin (4) is returned to the factory for processing, the pin puller is inserted into the first screw hole (503), the positioning structure is pulled out, and the processed vertical pin is reinserted.

2. A barrel-type high-pressure cylinder positioning structure according to claim 1, characterized in that: The limiting assembly (6) comprises a cushion block (602), at least one gasket (601), and a bolt that passes through the cushion block (602) and the gasket (601) in sequence and is fixed in the second fixing portion (502).

3. A barrel-type high-pressure cylinder positioning structure according to claim 2, characterized in that: The cushion block (602), the gasket (601) and the second fixing portion (502) are all provided with second screw holes (603) that match with bolts.

4. A barrel-type high-pressure cylinder positioning structure according to claim 2, characterized in that: The thickness of the gasket (601) is 0.1 mm to 5 mm.

5. The barrel-type high-pressure cylinder positioning structure according to claim 2, characterized in that: The thickness of the cushion block (602) is 20 mm to 25 mm.

6. The barrel-type high-pressure cylinder positioning structure according to claim 2, characterized in that: The bolt is a countersunk bolt or a hexagon socket bolt.

7. The barrel-type high-pressure cylinder positioning structure according to claim 1, characterized in that: The limiting assembly (6) includes a limiting pin (604), the contact surface between the limiting pin (604) and the second fixing portion (502) is a first inclined surface, and the contact surface between the second fixing portion (502) and the limiting pin (604) is a second inclined surface that matches the first inclined surface.

8. The barrel-type high-pressure cylinder positioning structure according to claim 7, characterized in that: A handle (605) is provided at the bottom of the limiting latch (604).

9. The barrel-type high-pressure cylinder positioning structure according to claim 7, characterized in that: The limiting latch (604) and the second fixing portion (502) are both wedge structures.

10. The barrel-type high-pressure cylinder positioning structure according to claim 1, characterized in that: A first screw hole (503) that cooperates with a pin puller is provided on the top of the first fixing portion (501).

Images