Adjustable device and method for sealing oil hole in bush

Abstract

The invention provides an adjustable device and method for sealing an oil hole in a bush, and relates to the technical field of bushings.The adjustable device comprises an adjusting device and a fixing device, the adjusting device is installed at the inner wall position of a bush body through the fixing device, the adjusting device blocks a hole of the bush body through an installation head and a sealing ring, and the adjusting device is used for adjusting the oil hole in the bush body. The adjusting device comprises an adjusting plate installed on the inner wall of the lining body through a fixing device, two supporting plates are arranged on the inner wall of the adjusting plate in a sliding mode, the cross section of each supporting plate is in an I shape, the surfaces of the two supporting plates are in threaded connection with threaded rods in a penetrating mode, and the threaded rods are in threaded connection with the adjusting plate. When a pressure test is carried out on an oil pipeline of the speed reducer, the sealing performance of the bushing body can be better guaranteed, stable assembly of the sealing ring is also guaranteed, then normal operation of the test is facilitated, and the reliability and accuracy of a test result are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bushings, and in particular to an adjustable device and method for sealing an oil hole in a bushing. Background Art

[0002] A bushing is an important component inside a speed reducer. Its main functions are to prevent oil leakage, isolate contaminants, and ensure the normal operation of various components inside the speed reducer. It is usually combined with other components such as bearings, gears, and housings to play the roles of sealing, protection, and extending the service life.

[0003] In order to improve the performance of the bearings on existing speed reducers, a small hole is opened on the bushing, and lubricating oil is applied to the bearings through the small hole to achieve the effect of lubrication and protection. To ensure the quality of the speed reducer during use, a pressure detection test is performed on the oil pipeline. Generally, during this test process, the holes on the bushing need to be blocked to ensure uniform stress on the bushing. The general blocking method is to fill the holes with a sealing ring. However, it is found during use that the sealing ring will deform and extrude during the stress process, thus affecting the pressure test and causing errors in the test results of the oil pipeline, which affects the normal use of the speed reducer. Summary of the Invention

[0004] The technical problem to be solved by the present invention is as follows: In order to improve the performance of the bearings on existing speed reducers, a small hole is opened on the bushing, and lubricating oil is applied to the bearings through the small hole to achieve the effect of lubrication and protection. To ensure the quality of the speed reducer during use, a pressure detection test is performed on the oil pipeline. Generally, during this test process, the holes on the bushing need to be blocked to ensure uniform stress on the bushing. The general blocking method is to fill the holes with a sealing ring. However, it is found during use that the sealing ring will deform and extrude during the stress process, thus affecting the pressure test and causing errors in the test results of the oil pipeline, which affects the normal use of the speed reducer.

[0005] The technical solution adopted by the present invention to solve its technical problems is: An adjustable device for sealing an oil hole in a bushing, including an adjusting device and a fixing device. The adjusting device is installed at the inner wall position of the bushing body by means of the fixing device. Among them, the adjusting device blocks the holes of the bushing body through the mounting head and the sealing ring, facilitating subsequent oil pipeline sealing and pressure tests.

[0006] The effects achieved by the above components are as follows: When performing a pressure test on the oil pipeline of the speed reducer, first install the adjusting device on the inner wall of the bushing body by means of the fixing device, then operate the adjusting device to block and seal the holes of the bushing body, and finally perform corresponding tests through the pressure given by the equipment.

[0007] Preferably, the adjusting device includes an adjusting plate installed on the inner wall of the bushing body by means of a fixing device. Two support plates are slidably arranged on the inner wall of the adjusting plate. The cross-section of the support plate is in the shape of "I". Screws are respectively connected through the surfaces of the two support plates in a threaded manner, and an operating block is installed on the surface of the screw. Installation plates are respectively rotated on both sides of the surfaces of the two support plates, and an installation block is jointly installed on both sides. An installation groove is formed in the inner wall of the installation block. The installation block is equipped with an installation head through the installation groove, and a sealing ring is installed on the surface of the installation head.

[0008] The effects achieved by the above components are as follows: When performing a pressure test on the oil pipeline of the reducer, the sealing performance of the bushing body can be better ensured, and the stable assembly of the sealing ring is also guaranteed, thus facilitating the normal progress of the test and improving the reliability and accuracy of the test results.

[0009] Preferably, the adjusting device further includes a fixing head installed at one end of the screw in contact with the inner wall of the bushing body, and the fixing head increases the connection strength between the screw and the bushing body.

[0010] The effects achieved by the above components are as follows: Through the setting of the fixing head made of rubber material, when the screw contacts the inner wall of the bushing body, the friction force is further increased, and it is not easy to cause damage to the inside of the bushing body due to excessive extrusion force, ensuring the subsequent normal use of the bushing body.

[0011] Preferably, the adjusting device further includes a fixing ring installed on the arc surface of the screw, and the fixing ring is located between the support plate and the fixing head.

[0012] The effects achieved by the above components are as follows: Through the setting of the fixing ring, when the screw contacts and presses the inner wall of the bushing body and the position of the support plate is fixed, rotate the fixing ring so that the fixing ring contacts the surface of the support plate, thereby ensuring the stable position of the screw and not easily occurring rotational loosening, and guaranteeing the stable assembly of the sealing ring.

[0013] Preferably, the adjusting device further includes a connecting plate installed on the inner wall of the adjusting plate. Springs are respectively installed on both side surfaces of the connecting plate, and the other ends of the springs are connected to the surfaces of the support plates.

[0014] The effects achieved by the above components are as follows: Through the setting of the springs and the connecting plate, when the adjusting device is installed and fixed on the inner wall of the bushing body, the two support plates on the adjusting plate will slide under the elastic force of the springs, so that the sealing ring on the installation head can be quickly inserted into the hole of the bushing body, facilitating subsequent operations and improving the convenience of using the adjusting device.

[0015] Preferably, the installation groove on the installation block and the installation head are in a plug-in connection form.

[0016] The effects achieved by the above components are as follows: By means of the insertion connection between the installation groove and the installation head, different installation heads with different end face specifications can be replaced, enabling the use of hole sealing rings of different specifications, and further improving the functionality of the adjusting device.

[0017] Preferably, the fixing device includes U-shaped plates installed on both sides of the surface of the adjusting plate. A clamping plate is inserted into the inner walls of the two U-shaped plates, and the clamping plate is inserted into the inner wall of the bushing body. The clamping plate and the U-shaped plate are connected and fixed by a fixing rod, and threads are provided on the arc surface of one end of the fixing rod. A nut is threadedly connected to the arc surface of the fixing rod.

[0018] The effects achieved by the above components are as follows: When the adjusting device is in use, it can be assembled more conveniently and quickly, so that the pressure test of the oil pipeline can be carried out more conveniently, and it is also convenient to repair and maintain the components of the device, ensuring the efficient sealing of the holes of the bushing body.

[0019] Preferably, a reinforcing pad is fixedly connected to the inner wall of the clamping plate, and the reinforcing pad is a rubber pad.

[0020] The effects achieved by the above components are as follows: Through the setting of the reinforcing pad, there is no gap between the clamping plate and the arc surface of the bushing body, and the friction force is further increased, thus better ensuring the position stability of the adjusting device and improving the use effect of the fixing device.

[0021] Preferably, the fixing device further includes a bolt threadedly connected through the surface of the clamping plate, and a pressing block is installed at one end of the bolt.

[0022] The effects achieved by the above components are as follows: Through the setting of the bolt and the pressing block, the bolt threadedly installed on the clamping plate is rotated, so that the pressing block fixedly connected to the bolt contacts and presses against the inner wall of the bushing body, making the position of the clamping plate more stable, and further better ensuring the fixed position of the adjusting plate of the adjusting device and preventing abnormal sliding and offset.

[0023] Preferably, a method for using an adjustable device for sealing the oil hole in the bushing includes the following steps:

[0024] Step 1. When using the adjustable device to block the hole of the bushing body for subsequent pressure tests, first place the adjusting plate in the inner wall of the bushing body, then clamp the clamping plate on the arc surface of the bushing body, and insert both ends of the clamping plate into the inner walls of the U-shaped plates fixedly connected to both sides of the surface of the adjusting plate respectively. Then, penetrate the fixing rod through the surfaces of the adjusting plate and the two clamping plates, and thread the nut onto the fixing rod until the nut contacts and presses against the surface of one side of the clamping plate. Finally, rotate the bolt on the clamping plate so that the pressing block at one end of the bolt contacts and presses against the surface of the bushing body to fix the position of the adjusting plate of the adjusting device;

[0025] Step 2: Then, install the sealing ring corresponding to the hole specification size of the bushing body on the installation head of the corresponding specification, fix it with glue, insert the installation head into the installation groove on the surface of the installation block, and then loosen the support plate. The support plate will slide on the inner wall of the adjusting plate under the elastic force of the spring fixedly connected to the connecting plate, so that the installation plate on the installation head will rotate relative to one end of the support plate, thereby driving the sealing ring into the hole of the bushing body for filling and plugging;

[0026] Step 3: Finally, rotate the screws on the two support plates, so that one end of the screw approaches the inner wall of the bushing body under the rotation of the operating block until the fixed head on the screw contacts and presses against the inner wall of the bushing body, fixing the positions of the support plate and the installation head. Then rotate the fixing ring on the screw so that the fixing ring contacts the support plate to position the screw and ensure the stability of the device. Then, conduct a pressure test on the bushing body and the corresponding oil pipeline.

[0027] The beneficial effects of the present invention are:

[0028] 1. In the present invention, rotate the screws on the two support plates, so that one end of the screw approaches the inner wall of the bushing body under the rotation of the operating block until the fixed head on the screw contacts and presses against the inner wall of the bushing body, fixing the positions of the support plate and the installation head. Then rotate the fixing ring on the screw so that the fixing ring contacts the support plate to position the screw and ensure the stability of the device. Then, conduct a pressure test on the bushing body and the corresponding oil pipeline.

[0029] 2. In the present invention, when conducting a pressure test on the oil pipeline of the reducer, it can better ensure the sealing performance of the bushing body, and also ensure the stable assembly of the sealing ring, thereby facilitating the normal progress of the test and improving the reliability and accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the drawings and embodiments.

[0031] Figure 1 is a schematic structural diagram of a use state of an adjustable device and method for sealing an oil hole in a bushing proposed by the present invention;

[0032] Figure 2 is a schematic structural diagram of an adjusting device in an adjustable device and method for sealing an oil hole in a bushing proposed by the present invention;

[0033] Figure 3 is an exploded structural diagram of components of an adjusting device in an adjustable device and method for sealing an oil hole in a bushing proposed by the present invention;

[0034] Figure 4It is a schematic structural diagram of the fixing device in an adjustable device and method for sealing an oil hole in a sealing bushing proposed by the present invention;

[0035] Figure 5 It is a schematic diagram of the component structure of the adjusting device in an adjustable device and method for sealing an oil hole in a sealing bushing proposed by the present invention.

[0036] Legend: 1. Adjusting device; 101. Adjusting plate; 102. Support plate; 103. Mounting plate; 14. Mounting block; 15. Mounting groove; 16. Mounting head; 17. Sealing ring; 18. Screw; 19. Fixed head; 110. Connecting plate; 111. Spring; 112. Operating block; 113. Fixed ring; 2. Fixing device; 21. U-shaped plate; 22. Clamping plate; 23. Fixed rod; 24. Nut; 25. Reinforcing pad; 26. Bolt; 27. Pressing block; 3. Bushing body; 4. Hole. Detailed implementation manners

[0037] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0038] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] Figure 1 and Figure 2 As shown in the figure, an adjustable device and method for sealing an oil hole in a sealing bushing includes an adjusting device 1 and a fixing device 2. The adjusting device 1 is installed at the inner wall position of the bushing body 3 by means of the fixing device 2. Among them, the adjusting device 1 plugs the hole 4 of the bushing body 3 by means of the mounting head 16 and the sealing ring 17, which is convenient for subsequent oil pipeline sealing and pressure testing.

[0040] Figure 1 、 Figure 2 and Figure 3The adjustment device 1 shown includes an adjustment plate 101 mounted on the inner wall of the bushing body 3 by means of a fixing device 2, and two support plates 102 are slidably provided on the inner wall of the adjustment plate 101, wherein the cross section of the support plate 102 is in the shape of an "I", and the surfaces of the two support plates 102 are respectively threaded with screws 18, and the surfaces of the screws 18 are installed with operating blocks 112, and mounting plates 103 are respectively rotated on both sides of the surfaces of the two support plates 102, and the mounting plates 103 on both sides are jointly installed with mounting blocks 14, and the inner wall of the mounting block 14 is provided with a mounting groove 15, wherein the mounting block 14 is equipped with a mounting head 16 by means of the mounting groove 15, and a sealing ring 17 is installed on the surface of the mounting head 16. When the oil pipeline of the reducer is subjected to a pressure test, the rubber sealing ring 17 is first installed on the mounting head 16 with contact glue, and then the mounting The head 16 is inserted into the inner wall of the mounting groove 15 on the surface of the mounting block 14, and then the adjusting plate 101 of the adjusting device 1 is installed on the inner wall of the bushing body 3 with the help of the fixing device 2, so that the sealing ring 17 is aligned with the hole 4, and then the two supporting plates 102 on the inner wall of the sliding adjusting plate 101, one end of the two supporting plates 102 will be close to each other, at this time, the mounting plate 103 at the other end will rotate, so that the mounting block 14 is close to the hole 4, until the sealing ring 17 on the mounting head 16 is inserted into the hole 4 of the bushing body 3, and the sealing is blocked and sealed, and finally the corresponding test is performed through the pressure given by the equipment. At this time, when the oil pipeline of the reducer is pressure tested, the sealing of the bushing body 3 can be better guaranteed, and the stable assembly of the sealing ring 17 is guaranteed, which facilitates the normal progress of the test and improves the reliability and accuracy of the test results.

[0041] Figure 1 , Figure 2 and Figure 3 The adjusting device 1 shown also includes a fixing head 19 installed at the end where the screw 18 contacts the inner wall of the bushing body 3, wherein the fixing head 19 increases the connection strength between the screw 18 and the bushing body 3. By setting the fixing head 19 made of rubber material, the friction force is further increased when the screw 18 contacts the inner wall of the bushing body 3, and it is not easy to damage the inside of the bushing body 3 due to excessive extrusion force, thereby ensuring the subsequent normal use of the bushing body 3. The adjusting device 1 also includes a fixing ring 113 installed on the arc surface of the screw 18, wherein the fixing ring 113 is located between the support plate 102 and the fixing head 19. Through the setting of the fixing ring 113, the screw 18 contacts and squeezes the inner wall of the bushing body 3 to fix the position of the support plate 102, and then the fixing ring 113 is rotated to make the fixing ring 113 contact the surface of the support plate 102, thereby ensuring the stability of the position of the screw 18, preventing it from rotating loose, and ensuring the stable assembly of the sealing ring 17.

[0042] Figure 1 , Figure 2 and Figure 3The adjusting device 1 shown also includes a connecting plate 110 installed on the inner wall of the adjusting plate 101, wherein springs 111 are respectively installed on the two side surfaces of the connecting plate 110, and the other end of the spring 111 is connected to the surface of the support plate 102. Through the arrangement of the spring 111 and the connecting plate 110, when the adjusting device 1 is installed and fixed in the inner wall of the bushing body 3, the two support plates 102 on the adjusting plate 101 will slide under the elastic force of the spring 111, so that the sealing ring 17 on the mounting head 16 can be quickly inserted into the hole 4 of the bushing body 3, which is convenient for subsequent operations and improves the convenience of using the adjusting device 1. The mounting groove 15 on the mounting block 14 and the mounting head 16 are in a plug-in connection form. Through the plug-in connection between the mounting groove 15 and the mounting head 16, the mounting head 16 with different end face specifications can be replaced, so that the sealing rings 17 of holes 4 with different specifications can be used, which further improves the functionality of the adjusting device 1.

[0043] Figure 1 , Figure 2 and Figure 4 The fixing device 2 shown includes U-shaped plates 21 installed on both sides of the surface of the adjustment plate 101, the inner walls of the two U-shaped plates 21 are commonly plugged with a clamping plate 22, and the clamping plate 22 is plugged with the inner wall of the bushing body 3, the clamping plate 22 and the U-shaped plate 21 are connected and fixed by a fixing rod 23, and a thread is provided on the arc surface of one end of the fixing rod 23, and a nut 24 is threadedly connected on the arc surface of the fixing rod 23. When the fixing device 2 is used to install and fix the adjustment device 1, the adjustment plate 101 of the adjustment device 1 is first adjusted to align the sealing ring 17 with the hole 4 on the bushing body 3, and then the clamping plate 22 is clamped on the bushing body 3 The arc surface of the clamping plate 22 is simultaneously inserted into the inner wall of the U-shaped plate 21 fixedly connected to the surface of the adjusting plate 101 on both sides, and then the fixing rod 23 is passed through the clamping plate 22 and the U-shaped plate 21, and finally the nut 24 is threadedly connected to the fixing rod 23, so that the nut 24 is in contact and squeezed with the surface of the clamping plate 22, so that the position of the clamping plate 22 is fixed, thereby fixing the position of the adjusting plate 101. At this time, the adjusting device 1 can be assembled more conveniently and quickly when in use, so that the pressure test of the oil pipeline can be carried out more conveniently, and the components of the device can be inspected and maintained, ensuring the efficient sealing of the hole 4 of the bushing body 3.

[0044] Figure 1 , Figure 2 and Figure 4The inner wall of the shown clamping plate 22 is fixedly connected with a reinforcing pad 25. The reinforcing pad 25 is a rubber pad. Through the arrangement of the reinforcing pad 25, it is not easy to generate a gap between the clamping plate 22 and the arc surface of the bushing body 3, and the friction force is further increased. Furthermore, the position stability of the adjusting device 1 is better ensured, and the use effect of the fixing device 2 is improved. The fixing device 2 further includes a bolt 26 threadedly connected through the surface of the clamping plate 22. One end of the bolt 26 is provided with a pressing block 27. Through the arrangement of the bolt 26 and the pressing block 27, rotate the bolt 26 threadedly installed on the clamping plate 22, so that the pressing block 27 fixedly connected to the bolt 26 contacts and presses against the inner wall of the bushing body 3, making the position of the clamping plate 22 more stable. Furthermore, the position of the adjusting plate 101 of the adjusting device 1 is better ensured to be fixed and not prone to abnormal sliding offset.

[0045] Working principle: When using the adjustable device to block the hole 4 of the bushing body 3 in preparation for the subsequent pressure test, first place the adjusting plate 101 in the inner wall of the bushing body 3, then clamp the clamping plate 22 on the arc surface of the bushing body 3, and make both ends of the clamping plate 22 respectively inserted into the inner walls of the U-shaped plates 21 fixedly connected to both sides of the surface of the adjusting plate 101. Then penetrate the fixing rod 23 through the surfaces of the adjusting plate 101 and the two clamping plates 22, and then thread the nut 24 onto the fixing rod 23 until the nut 24 contacts and presses against the surface of one side of the clamping plate 22. Finally, rotate the bolt 26 on the clamping plate 22 so that the pressing block 27 at one end of the bolt 26 contacts and presses against the surface of the bushing body 3, fixing the position of the adjusting plate 101 of the adjusting device 1. Then install the sealing ring 17 corresponding to the specification size of the hole 4 of the bushing body 3 on the corresponding specification mounting head 16 and fix it with glue. Then insert the mounting head 16 into the mounting groove 15 on the surface of the mounting block 14. Then loosen the support plate 102, and the support plate 102 will slide on the inner wall of the adjusting plate 101 under the elastic force of the spring 111 fixedly connected to the connecting plate 110, so that the mounting plate 103 on the mounting head 16 will rotate relative to one end of the support plate 102, thereby driving the sealing ring 17 into the hole 4 of the bushing body 3 for filling and blocking. Finally, rotate the screw rods 18 on the two support plates 102, so that one end of the screw rods 18 approaches the inner wall of the bushing body 3 under the rotation of the operating block 112 until the fixed head 19 on the screw rod 18 contacts and presses against the inner wall of the bushing body 3, fixing the positions of the support plate 102 and the mounting head 16. Then rotate the fixing ring 113 on the screw rod 18 so that the fixing ring 113 contacts the support plate 102 to position the screw rod 18 and ensure the stability of the device. Then conduct a pressure test on the bushing body 3 and the corresponding oil pipeline.

[0046] Inspired by the above-described ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An adjustable device for sealing an oil hole in a sealing bushing, characterized in that: It includes an adjusting device (1) and a fixing device (2). The adjusting device (1) is installed at the inner wall position of the bushing body (3) by means of the fixing device (2). Among them, the adjusting device (1) plugs the hole (4) of the bushing body (3) by means of the mounting head (16) and the sealing ring (17), which is convenient for subsequent oil pipeline sealing and pressure testing.

2. The adjustable device for sealing the oil hole in the sealing bushing according to claim 1, wherein: The adjusting device (1) includes an adjusting plate (101) installed on the inner wall of the bushing body (3) by means of the fixing device (2). Two support plates (102) are slidably arranged on the inner wall of the adjusting plate (101). The cross-section of the support plate (102) is in the shape of "I". Screws (18) are respectively threaded through the surfaces of the two support plates (102), and an operation block (112) is installed on the surface of the screw (18). Mounting plates (103) are respectively rotated on both sides of the surfaces of the two support plates (102), and a mounting block (14) is jointly installed on both sides of the mounting plates (103). An installation groove (15) is formed in the inner wall of the mounting block (14). Among them, the mounting block (14) is assembled with a mounting head (16) by means of the installation groove (15), and a sealing ring (17) is installed on the surface of the mounting head (16).

3. The adjustable device for sealing the oil hole in the sealing bushing according to claim 2, characterized in that: The adjusting device (1) further includes a fixing head (19) installed at one end of the screw (18) in contact with the inner wall of the bushing body (3). Among them, the fixing head (19) increases the connection strength between the screw (18) and the bushing body (3).

4. An adjustable device for sealing the oil hole in the sealing bushing according to claim 3, characterized in that: The adjusting device (1) further includes a fixing ring (113) installed on the arc surface of the screw (18). The fixing ring (113) is located between the support plate (102) and the fixing head (19).

5. The adjustable device for sealing the oil hole in the sealing bushing according to claim 2, wherein: The adjusting device (1) further includes a connecting plate (110) installed on the inner wall of the adjusting plate (101). Springs (111) are respectively installed on both side surfaces of the connecting plate (110), and the other ends of the springs (111) are connected to the surfaces of the support plates (102).

6. The adjustable device for sealing the oil hole in the sealing bushing according to claim 2, wherein: The installation groove (15) on the mounting block (14) and the mounting head (16) are in an inserted connection form.

7. An adjustable device for sealing an oil hole in a sealing bushing according to claim 2, characterized in that: The fixing device (2) includes U-shaped plates (21) installed on both sides of the surface of the adjusting plate (101). A clamping plate (22) is jointly inserted into the inner walls of the two U-shaped plates (21), and the clamping plate (22) is inserted into the inner wall of the bushing body (3). The clamping plate (22) and the U-shaped plate (21) are connected and fixed by a fixing rod (23). Threads are provided on the arc surface of one end of the fixing rod (23), and a nut (24) is threadedly connected to the arc surface of the fixing rod (23).

8. An adjustable device for sealing an oil hole in a sealing bushing, characterized in that: A reinforcing pad (25) is fixedly connected to the inner wall of the clamping plate (22), and the reinforcing pad (25) is a rubber pad.

9. An adjustable device for sealing an oil hole in a sealing bushing, characterized in that: The fixing device (2) further includes a bolt (26) threadedly connected through the surface of the clamping plate (22), and a pressing block (27) is installed at one end of the bolt (26).

10. A usage method, according to the usage method of an adjustable device for sealing an oil hole in a bushing as described in any one of claims 1-9, includes the following steps: Step 1. When using the adjustable device to block the hole (4) of the bushing body (3) in preparation for the subsequent pressure test, first place the adjusting plate (101) inside the inner wall of the bushing body (3), then snap the clamping plate (22) onto the arc surface of the bushing body (3), and insert both ends of the clamping plate (22) into the inner walls of the U-shaped plates (21) fixedly connected to both sides of the surface of the adjusting plate (101). Then pass the fixing rod (23) through the surfaces of the adjusting plate (101) and the two clamping plates (22), and thread the nut (24) onto the fixing rod (23) until the nut (24) contacts and presses against the surface of one of the clamping plates (22). Finally, rotate the bolt (26) on the clamping plate (22) so that the pressing block (27) at one end of the bolt (26) contacts and presses against the surface of the bushing body (3), fixing the position of the adjusting plate (101) of the adjusting device (1). Step 2. Then install the sealing ring (17) corresponding to the specification size of the hole (4) of the bushing body (3) on the corresponding specification mounting head (16) and fix it with glue. Then insert the mounting head (16) into the mounting groove (15) on the surface of the mounting block (14). Then loosen the support plate (102), and the support plate (102) will slide inside the inner wall of the adjusting plate (101) under the elastic force of the spring (111) fixedly connected to the connecting plate (110), causing the mounting plate (103) on the mounting head (16) to rotate relative to one end of the support plate (102), thereby driving the sealing ring (17) into the hole (4) of the bushing body (3) for filling and blocking. Step 3. Finally, rotate the screws (18) on the two support plates (102) so that one end of the screws (18) approaches the inner wall of the bushing body (3) under the rotation of the operating block (112) until the fixing head (19) on the screw (18) contacts and presses against the inner wall of the bushing body (3), fixing the positions of the support plate (102) and the mounting head (16). Then rotate the fixing ring (113) on the screw (18) so that the fixing ring (113) contacts the support plate (102) to position the screw (18) and ensure the stability of the device. Then conduct a pressure test on the bushing body (3) and the corresponding oil pipeline.

Images