Valve swing oil cylinder with rotation adjusting device

Abstract

The utility model provides a valve swing oil cylinder with a rotation adjusting device, which is provided with an oil cylinder main body and an oil cylinder supporting assembly, the oil cylinder main body is provided with an outer shell, a main shaft and an adjusting supporting ring, the adjusting supporting ring is positioned at the outer circumference position of the left side of the outer shell, the adjusting supporting ring is provided with a plurality of through strip-shaped holes, the number of the strip-shaped holes is larger than that of the main shaft, and the rotating adjusting device is arranged on the oil cylinder main body. Wherein rotating adjusting notches are formed in the two sides of one long-strip-shaped hole correspondingly, through rotating adjusting holes are formed between the two rotating adjusting notches and the long-strip-shaped hole in the middle correspondingly, screws are arranged in the two rotating adjusting holes correspondingly, and an oil cylinder supporting assembly is arranged outside the left side of the outer shell; an adjusting supporting column protruding towards the right side is arranged at the position, close to the outer circumference, of the oil cylinder supporting assembly. The swing oil cylinder is provided with the rotation adjusting device, in actual operation, an operator can easily conduct rotation operation on the swing oil cylinder, rapid alignment between the valve connecting sleeve and the valve is achieved, and the installation efficiency is high. The valve can be widely applied to valves.

Description

Technical Field

[0001] This utility model relates to a swing cylinder, and more particularly to a swing cylinder for valves with a rotation adjustment device. Background Technology

[0002] Currently, in order to achieve rapid opening and closing of large valves, a swing cylinder is usually installed above the valve. The valve is inserted into the valve connecting sleeve on the swing cylinder. In actual operation, when it is necessary to open or close the valve, the valve can be quickly opened or closed by controlling the main shaft on the swing cylinder to rotate in the forward and reverse directions.

[0003] Since valves are usually polygonal in shape, during the installation of the swing cylinder, the operator needs to rotate the swing cylinder to align the valve connecting sleeve with the valve, so that the valve can be smoothly inserted into the valve connecting sleeve to complete the installation.

[0004] However, the swing cylinders used in large valves are usually large in size and heavy in weight, which makes it difficult to rotate the swing cylinder and results in low installation efficiency. Utility Model Content

[0005] To address the above-mentioned technical problems, this utility model provides a swing cylinder for valves with a rotation adjustment device. Because the swing cylinder is equipped with a rotation adjustment device, in actual operation, the operator can easily rotate the swing cylinder to achieve rapid alignment between the valve connecting sleeve and the valve, resulting in high installation efficiency.

[0006] Therefore, the technical solution of this utility model is a swing cylinder for a valve with a rotary adjustment device, which is provided with a cylinder body and a cylinder support assembly. The cylinder support assembly is located on the left side of the cylinder body and is axially fixedly connected to the cylinder body.

[0007] The cylinder body is provided with an outer shell and a main shaft. The main shaft is located inside the outer shell and can rotate in both directions inside the outer shell. A fourth mounting hole is provided at the middle position of the leftmost end of the main shaft.

[0008] The cylinder body is also equipped with an adjusting support ring, which is located on the left outer circumference of the outer shell and is fixedly connected to the left outer circumference of the outer shell.

[0009] The adjusting support ring has a through-hole, and there are multiple through-holes distributed along the circumference of the adjusting support ring. One of the through-holes has a rotation adjustment notch on each side, and the two rotation adjustment notches are respectively connected to the through-holes in the middle through-hole. The two rotation adjustment holes are respectively provided with screws inside.

[0010] A cylinder support assembly is provided on the left side of the outer casing. A support plate is provided on the cylinder support assembly. A through clearance hole is provided in the middle of the support plate. Multiple first assembly holes are provided on the support plate near the outer circumference.

[0011] An adjusting support column protruding to the right is provided on the support base plate near the outer circumference. The hydraulic cylinder support assembly and the adjusting support ring can be locked together by screws passing through the elongated hole and the first assembly hole, so as to achieve a fixed connection between the hydraulic cylinder support assembly and the adjusting support ring.

[0012] After the hydraulic cylinder support assembly is fixedly connected to the adjusting support ring, the adjusting support column is located inside the elongated hole between the two rotating adjusting notches. The screws inside the two rotating adjusting holes are located on both sides of the adjusting support column. By adjusting the screws inside the two rotating adjusting holes, a thrust can be applied to the adjusting support column respectively.

[0013] After the cylinder support assembly is fixedly connected to the adjusting support ring, the fourth assembly hole and the clearance hole are interconnected to form a receiving chamber. A valve connecting sleeve is provided in the receiving chamber. The valve connecting sleeve consists of a front section and a rear section. The front section of the valve connecting sleeve is located inside the clearance hole and can rotate inside the clearance hole. The rear section of the valve connecting sleeve is located inside the fourth assembly hole and is fixedly connected to the fourth assembly hole.

[0014] The front end of the valve connecting sleeve is provided with an axial third assembly hole. The third assembly hole and the clearance hole are axially symmetrically arranged, and the diameter of the third assembly hole is smaller than the diameter of the clearance hole.

[0015] By rotating the screws inside the two rotation adjustment holes respectively, the screws apply a thrust to the adjustment support column. Under the action of the reverse force, the cylinder body can be driven to rotate in both directions. At the same time as the cylinder body rotates, the valve connecting sleeve can be driven to rotate synchronously, thereby adjusting the assembly angle between the third assembly hole on the valve connecting sleeve and the valve.

[0016] Preferably, a through second mounting hole is provided on the support plate between the first mounting hole and the clearance hole, and there are multiple second mounting holes, which are evenly distributed along the circumferential direction.

[0017] Screws are installed inside the multiple second mounting holes, with the screw shanks extending to the outer left side of the support plate.

[0018] Preferably, a fixed retaining ring is fixedly provided at the outermost position of the inner circumference of the clearance hole. The inner diameter of the fixed retaining ring is larger than the inner diameter of the third assembly hole. After the cylinder support assembly is fixedly connected to the adjusting support ring, the fixed retaining ring is located at the axial outer position of the front section of the valve connecting sleeve, and the fixed retaining ring provides axial rotational support for the front section of the valve connecting sleeve.

[0019] Preferably, the inner end of the fixed retaining ring is provided with a groove, and a wear-resistant support pad is provided in the groove. The fixed retaining ring and the front part of the valve connecting sleeve are axially rotated and supported by the wear-resistant support pad.

[0020] Preferably, the rear section of the valve connecting sleeve and the fourth assembly hole are symmetrical polygonal shapes, and the rear section of the valve connecting sleeve and the fourth assembly hole are fixed by insertion.

[0021] Preferably, an encoder assembly is fixedly mounted on the axial right side of the spindle.

[0022] Preferably, the third assembly hole is an axially penetrating through hole.

[0023] Preferably, a guide slope is provided at the connection between the third assembly hole and the front end face of the valve connecting sleeve.

[0024] The beneficial effects of this utility model are:

[0025] 1. During assembly, the cylinder support assembly is fixedly connected to the fixed seat on the outer circumference of the valve. Then, screws are used to connect the cylinder support assembly to the adjusting support ring, forming a preliminary fixation. At this time, the cylinder support assembly and the adjusting support ring are not locked. Observe the angle position between the third mounting hole and the valve, and rotate the screws inside the two rotating adjustment holes accordingly. The screws apply a thrust to the adjusting support column. Since the cylinder support assembly is fixedly connected to the fixed seat on the outer circumference of the valve, and since the adjusting support ring has multiple elongated holes, under the action of the reverse force, the cylinder body rotates in the opposite direction. At the same time as the cylinder body rotates, it drives the valve connecting sleeve to rotate synchronously, realizing the adjustment of the mounting angle between the third mounting hole on the valve connecting sleeve and the valve. When the rotation reaches the appropriate position, the screws on the multiple elongated holes are locked respectively, and the assembly of the swing cylinder is completed. The whole operation process is simple and quick, saves time and effort, and improves work efficiency.

[0026] 2. Since the rear section of the valve connecting sleeve and the fourth assembly hole are symmetrical polygonal shapes, and the rear section of the valve connecting sleeve and the fourth assembly hole are fixed by insertion, when the oil cylinder needs to be applied to valves of different specifications, the corresponding model of valve connecting sleeve can be quickly replaced by inserting and unplugging the valve connecting sleeve according to the specific shape and size of the valve. This allows the swing oil cylinder to be applied to different models of valves, making the operation convenient and quick, and the application range wide. Attached Figure Description

[0027] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0028] Figure 2 This is a front view of the overall structure of this utility model;

[0029] Figure 3 This is a utility modelFigure 2 Sectional view of AA;

[0030] Figure 4 This is a perspective view of the outer shell structure of this utility model;

[0031] Figure 5 This is a left view of the outer shell structure in this utility model;

[0032] Figure 6 This is a three-dimensional view of the main shaft structure in this utility model;

[0033] Figure 7 This is a three-dimensional view of the hydraulic cylinder support assembly structure in this utility model;

[0034] Figure 8 This is a three-dimensional view of the hydraulic cylinder support assembly from another perspective in this utility model;

[0035] Figure 9 This is a three-dimensional view of the valve connecting sleeve structure in this utility model;

[0036] Figure 10 This is a utility model Figure 3 Enlarged view of section B in the middle.

[0037] Explanation of symbols in the diagram:

[0038] 1. Outer shell; 101. Adjusting support ring; 102. Long strip hole; 103. Rotation adjustment hole; 104. Rotation adjustment notch; 2. Cylinder support assembly; 201. Support base plate; 202. Adjusting support column; 203. Clearance hole; 204. First mounting hole; 205. Fixed retaining ring; 206. Second mounting hole; 3. Encoder assembly; 4. Screw; 5. Valve connecting sleeve; 501. Front section of valve connecting sleeve; 502. Rear section of valve connecting sleeve; 503. Third mounting hole; 504. Guide slope; 6. Main shaft; 601. Fourth mounting hole; 7. Wear-resistant support pad; 8. Cylinder body. Detailed Implementation

[0039] The present invention will be further described below with reference to the embodiments.

[0040] pass Figures 1-10 As can be seen, the swing cylinder for valve with rotary adjustment device is provided with cylinder body 8 and cylinder support assembly 2. The cylinder support assembly 2 is located on the left side of cylinder body 8 and is axially fixedly connected to cylinder body 8. Cylinder body 8 is provided with outer shell 1 and main shaft 6. Main shaft 6 is located inside outer shell 1 and can rotate in both directions inside outer shell 1. A fourth mounting hole 601 is provided at the middle position of the leftmost end of main shaft 6.

[0041] The cylinder body 8 is also provided with an adjusting support ring 101. The adjusting support ring 101 is located on the left outer circumference of the outer shell 1 and is fixedly connected to the left outer circumference of the outer shell 1. The adjusting support ring 101 is provided with a through elongated hole 102. There are multiple elongated holes 102, which are distributed along the circumference of the adjusting support ring 101. One of the elongated holes 102 is provided with a rotation adjustment notch 104 on both sides. The two rotation adjustment notches 104 are respectively provided with through rotation adjustment holes 103 between them and the middle elongated hole 102. The two rotation adjustment holes 103 are respectively provided with screws 4 inside.

[0042] A cylinder support assembly 2 is provided on the left side of the outer casing 1. The cylinder support assembly 2 is provided with a support plate 201. A through clearance hole 203 is provided in the middle of the support plate 201. A plurality of first mounting holes 204 are provided on the support plate 201 near the outer circumference. An adjusting support column 202 protruding to the right is provided on the support plate 201 near the outer circumference. The cylinder support assembly 2 and the adjusting support ring 101 can be locked together by screws 4 passing through the elongated hole 102 and the first mounting holes 204, so as to achieve a fixed connection between the cylinder support assembly 2 and the adjusting support ring 101.

[0043] After the hydraulic cylinder support assembly 2 is fixedly connected to the adjusting support ring 101, the adjusting support column 202 is located inside the elongated hole 102 between the two rotating adjusting notches 104. The screws 4 inside the two rotating adjusting holes 103 are located on both sides of the adjusting support column 202. By adjusting the screws 4 inside the two rotating adjusting holes 103, a thrust can be applied to the adjusting support column 202 respectively.

[0044] After the cylinder support assembly 2 is fixedly connected to the adjusting support ring 101, the fourth assembly hole 601 and the clearance hole 203 are interconnected to form a receiving chamber. The receiving chamber is provided with a valve connecting sleeve 5, which consists of a front section 501 and a rear section 502. The front section 501 is located inside the clearance hole 203 and can rotate inside the clearance hole 203. The rear section 502 is located inside the fourth assembly hole 601 and is fixedly connected to the fourth assembly hole 601. When the main shaft 6 rotates, it can drive the valve connecting sleeve 5 to rotate synchronously. The front end of the front section 501 of the valve connecting sleeve is provided with an axial third assembly hole 503. The third assembly hole 503 and the clearance hole 203 are axially symmetrically arranged, and the diameter of the third assembly hole 503 is smaller than the diameter of the clearance hole 203.

[0045] During on-site installation, firstly, the cylinder support assembly 2 is fixedly connected to the fixed seat on the outer circumference of the valve. Then, screws 4 are used to connect the cylinder support assembly 2 to the adjusting support ring 101, forming a preliminary fixation. At this time, the cylinder support assembly 2 and the adjusting support ring 101 are not locked. Observe the angular position of the third mounting hole 503 and the valve, and rotate the screws 4 inside the two rotating adjusting holes 103 accordingly. The screws 4 apply a thrust to the adjusting support column 202. Because the cylinder support assembly 2 is fixedly connected to the fixed seat on the outer circumference of the valve, due to... The adjusting support ring 101 is provided with multiple elongated holes 102, which provide rotation space for the cylinder body 8. Under the action of the reverse force, the cylinder body 8 rotates in the opposite direction. At the same time as the cylinder body 8 rotates, it drives the valve connecting sleeve 5 to rotate synchronously, thereby realizing the adjustment of the assembly angle between the third assembly hole 503 on the valve connecting sleeve 5 and the valve. When the rotation reaches the appropriate position, the screws 4 on the multiple elongated holes 102 are locked respectively, and the assembly of the swing cylinder is finally completed. The whole operation process is simple and quick, saves time and effort, and improves work efficiency.

[0046] To achieve quick assembly and disassembly of the hydraulic cylinder support assembly 2, the following embodiment is adopted:

[0047] The support plate 201 has a through second mounting hole 206 located between the first mounting hole 204 and the clearance hole 203. There are multiple second mounting holes 206, which are evenly distributed along the circumference. Screws 4 are provided inside the multiple second mounting holes 206, and the screws of the screws 4 extend to the outer left side of the support plate 201.

[0048] In this embodiment, the screw 4 enables quick assembly and disassembly of the cylinder support assembly 2 and the fixed seat on the outer circumference of the valve, facilitating initial assembly and subsequent maintenance, thus increasing convenience.

[0049] A fixed retaining ring 205 is fixedly provided at the outermost position of the inner circumference of the clearance hole 203. The inner diameter of the fixed retaining ring 205 is larger than the inner diameter of the third assembly hole 503. After the cylinder support assembly 2 is fixedly connected to the adjusting support ring 101, the fixed retaining ring 205 is located at the axial outer position of the front section 501 of the valve connecting sleeve. The fixed retaining ring 205 provides axial rotational support for the front section 501 of the valve connecting sleeve.

[0050] To increase the stability and accuracy of the rotation of the valve connecting sleeve 5 and further improve the overall service life of the hydraulic cylinder, the following embodiment is adopted:

[0051] The fixed retaining ring 205 has a groove on its inner axial side, and a wear-resistant support pad 7 is provided in the groove. The fixed retaining ring 205 and the front section 501 of the valve connecting sleeve are axially rotated and supported by the wear-resistant support pad 7.

[0052] In this embodiment, the wear-resistant support pad 7 is made of materials such as PTFE+copper powder, phenolic fabric, cypress, and nylon, which have high wear resistance, high dry running characteristics, high support force, and high guiding stability. By setting the wear-resistant support pad 7 between the fixed retaining ring 205 and the front section 501 of the valve connecting sleeve, hard friction between the valve connecting sleeve 5 and the fixed retaining ring 205 can be avoided, thus preventing structural damage to the valve connecting sleeve 5 or the fixed retaining ring 205 under long-term friction.

[0053] To enable this swing cylinder to be applied to different types of valves, the following embodiment is adopted:

[0054] The rear section 502 of the valve connecting sleeve and the fourth mounting hole 601 are symmetrical polygonal shapes, and the rear section 502 of the valve connecting sleeve and the fourth mounting hole 601 are fixed by insertion.

[0055] In this embodiment, when the hydraulic cylinder needs to be applied to valves of different specifications, the valve connecting sleeve 5 can be replaced with the corresponding model by inserting or unplugging the valve connecting sleeve 5 according to the specific shape and size of the valve. The operation is convenient and quick, and the applicability is wide.

[0056] Furthermore, since a fixed retaining ring 205 is fixedly provided at the outermost position of the inner circumference of the clearance hole 203, and the fixed retaining ring 205 is located at the axial outer position of the front section 501 of the valve connecting sleeve, the fixed retaining ring 205 provides axial rotational support for the front section 501 of the valve connecting sleeve, which can prevent the valve connecting sleeve 5 from axially shifting and increase the stability of the structural connection.

[0057] To monitor the valve opening and closing angle in real time, the following embodiment is adopted:

[0058] In this embodiment, an encoder assembly 3 is fixedly installed on the right side of the main shaft 6. Since the main shaft 6 and the shaft core inside the encoder assembly 3 rotate synchronously, the rotation angle of the valve connecting sleeve 5 can be viewed through the encoder assembly 3, thereby knowing the opening and closing status of the valve, and even the flow rate of the valve opening, so as to realize real-time monitoring.

[0059] To enable quick replacement of valve connecting sleeve 5, the following embodiment is adopted:

[0060] The third assembly hole 503 is an axial through hole.

[0061] In this embodiment, the third assembly hole 503 is set as a through hole, which can reduce the resistance when the valve connecting sleeve 5 is inserted and removed. For example, when the valve connecting sleeve 5 is inserted into the fourth assembly hole 601, the air at the bottom of the fourth assembly hole 601 will flow outward through the through hole on the valve connecting sleeve 5, thereby reducing the resistance when inserting. When the valve connecting sleeve 5 is pulled out from the fourth assembly hole 601, the principle is reversed, which will counteract the reverse suction force at the bottom of the fourth assembly hole 601, and finally realize the quick insertion and removal replacement of the valve connecting sleeve 5.

[0062] To further improve the efficiency of assembling the third assembly hole 503 with the valve, the following embodiment is adopted:

[0063] A guide slope 504 is provided at the connection between the third assembly hole 503 and the front end face of the valve connecting sleeve 501. The guide slope 504 plays a guiding role during the assembly process, ensuring that the valve can smoothly enter the interior of the third assembly hole 503 and improving assembly efficiency.

[0064] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A swing cylinder for a valve with a rotary adjusting device, characterized in that: The cylinder is provided with a cylinder body and a cylinder support assembly. The cylinder support assembly is located on the left side of the cylinder body and is axially fixedly connected to the cylinder body. The cylinder body is provided with an outer shell and a main shaft. The main shaft is located inside the outer shell and can rotate in both directions inside the outer shell. A fourth mounting hole is provided at the middle position of the leftmost end of the main shaft. The cylinder body is also provided with an adjusting support ring, which is located on the left outer circumference of the outer shell and is fixedly connected to the left outer circumference of the outer shell. The adjusting support ring is provided with a through elongated hole, and there are multiple elongated holes distributed along the circumference of the adjusting support ring. One of the elongated holes is provided with a rotation adjustment notch on both sides, and two rotation adjustment notches are respectively provided with through rotation adjustment holes between them and the middle elongated hole. Screws are provided inside the two rotation adjustment holes. The outer left side of the outer shell is provided with a hydraulic cylinder support assembly, the hydraulic cylinder support assembly is provided with a support base plate, the support base plate is provided with a through clearance hole in the middle position, and the support base plate is provided with a plurality of first assembly holes near the outer circumference. The support plate is provided with an adjusting support column that protrudes to the right near the outer circumference. The cylinder support assembly and the adjusting support ring can be locked together by screws passing through the elongated hole and the first assembly hole, so as to achieve a fixed connection between the cylinder support assembly and the adjusting support ring. After the hydraulic cylinder support assembly is fixedly connected to the adjusting support ring, the adjusting support column is located inside the elongated hole between the two rotating adjusting notches. The screws inside the two rotating adjusting holes are located on both sides of the adjusting support column. By adjusting the screws inside the two rotating adjusting holes, a thrust can be applied to the adjusting support column respectively. After the hydraulic cylinder support assembly is fixedly connected to the adjusting support ring, the fourth assembly hole and the clearance hole are interconnected to form a receiving chamber. A valve connecting sleeve is provided in the receiving chamber. The valve connecting sleeve consists of a front section and a rear section. The front section of the valve connecting sleeve is located inside the clearance hole and can rotate inside the clearance hole. The rear section of the valve connecting sleeve is located inside the fourth assembly hole and is fixedly connected to the fourth assembly hole. The front end of the valve connecting sleeve is provided with an axial third mounting hole. The third mounting hole and the clearance hole are axially symmetrically arranged. The diameter of the third mounting hole is smaller than the diameter of the clearance hole. By rotating the screws inside the two rotation adjustment holes respectively, the screws apply a thrust to the adjustment support column. Under the action of the reverse force, the cylinder body can be driven to rotate in both directions. While the cylinder body rotates, the valve connecting sleeve can be driven to rotate synchronously, thereby adjusting the assembly angle between the third assembly hole on the valve connecting sleeve and the valve.

2. The swing cylinder for a valve with a rotary adjustment device according to claim 1, characterized in that: The support plate is provided with a through second mounting hole between the first mounting hole and the clearance hole. There are multiple second mounting holes, and the multiple second mounting holes are evenly distributed along the circumferential direction. Screws are provided inside the plurality of second mounting holes, the screws having shanks extending to the left outer side of the support plate.

3. The swing cylinder for a valve with a rotary adjustment device according to claim 2, characterized in that: A fixed retaining ring is fixedly provided at the outermost position of the inner circumference of the clearance hole. The inner diameter of the fixed retaining ring is larger than the inner diameter of the third assembly hole. After the cylinder support assembly is fixedly connected to the adjusting support ring, the fixed retaining ring is located at the axial outer position of the front section of the valve connecting sleeve. The fixed retaining ring provides axial rotational support for the front section of the valve connecting sleeve.

4. The swing cylinder for a valve with a rotary adjustment device according to claim 3, characterized in that: The fixed retaining ring has a groove on its inner axial side, and a wear-resistant support pad is provided in the groove. The fixed retaining ring and the front part of the valve connecting sleeve are axially rotated and supported by the wear-resistant support pad.

5. The swing cylinder for a valve with a rotary adjustment device according to claim 1, characterized in that: The rear section of the valve connecting sleeve and the fourth assembly hole are symmetrical polygonal shapes, and the rear section of the valve connecting sleeve and the fourth assembly hole are fixed by insertion.

6. The swing cylinder for a valve with a rotary adjustment device according to claim 1, characterized in that: An encoder assembly is fixedly mounted on the right side of the spindle along its axial direction.

7. The swing cylinder for a valve with a rotary adjustment device according to claim 1, characterized in that: The third assembly hole is an axially penetrating through hole.

8. The swing cylinder for a valve with a rotary adjustment device according to claim 7, characterized in that: The third assembly hole is provided with a guide slope at the connection between the front end face of the valve connecting sleeve and the front end face of the valve connecting sleeve.

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