Dismounting device for cylinder cover of oil cylinder

Abstract

The utility model discloses an oil cylinder cover dismounting device which comprises a wrench component, a matching sleeve, a locking component and two ejection components. The locking component comprises a positive locking screw rod and a negative locking screw rod which are inserted into the inner walls of the two ends of the matching sleeve respectively and connected in a matched mode through internal threads on the inner walls, and the ejection components are fixed to the ends, away from each other, of the positive locking screw rod and the negative locking screw rod respectively. The ejection part is in contact with a to-be-disassembled object and the oil cylinder cover, and when the matching sleeve is rotated by the wrench part, the positive locking screw and the reverse locking screw extend outwards towards the two ends, so that the ejection part extends outwards and ejects the oil cylinder cover outwards, and the oil cylinder cover is separated from the to-be-disassembled object. The device can effectively solve the problem that the cylinder cover of the oil cylinder is difficult to disassemble and repair, is more convenient to operate, improves the maintenance efficiency, and can effectively protect related parts.

Description

Technical Field

[0001] The utility model relates to the technical field of well control gate blowout preventer repair tools, and more specifically, to an oil cylinder cover disassembly device. Background Art

[0002] During oil drilling operations, various well control blowout preventers (BOPs) are used, including ram BOPs. If a ram BOP is used for too long or improperly operated, its seals can become damaged and lose their sealing function. In such cases, the damaged ram BOP must be disassembled and repaired.

[0003] When disassembling the cylinder head of the side door oil cylinder of the gate blowout preventer, manual knocking is generally used. Specifically, the maintenance personnel use a large hammer to knock on the root of the cylinder head. In order to make the cylinder head move smoothly, it is necessary to constantly change the knocking position during the knocking. It can be seen that this method is laborious and time-consuming, and the efficiency is very low. At the same time, during the knocking process, the piston is easily damaged due to uneven force on the piston.

[0004] Therefore, how to avoid these adverse factors and improve the efficiency and quality of well control gate blowout preventer maintenance work has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a cylinder head disassembly device, which can effectively solve the problem of difficulty in disassembling and repairing the cylinder head, is more convenient to operate, improves maintenance efficiency, and can effectively protect related components.

[0006] The utility model provides a cylinder head disassembly device, comprising a wrench component, a matching sleeve, a locking component and two ejection components, wherein the outer peripheral portion of the matching sleeve has a bite portion that matches the wrench component, the locking component comprises a positive locking screw and a reverse locking screw that are respectively inserted into the inner walls at both ends of the matching sleeve and are matched with the internal threads on the inner walls, the ejection components are respectively fixed to the opposite ends of the positive locking screw and the reverse locking screw, when the cylinder head disassembly device is placed in the space between the disassembly object and the cylinder head, the ejection components respectively contact the disassembly object and the cylinder head, when the matching sleeve is rotated by the wrench component, the positive locking screw and the reverse locking screw are respectively extended outwards to both ends so that the ejection components are extended outwards and the cylinder head is pushed outwards, so that the cylinder head is out of contact with the disassembly object.

[0007] Preferably, in the above-mentioned oil cylinder cover disassembly device, the ejection component and the locking component are detachably connected.

[0008] Preferably, in the above-mentioned oil cylinder head disassembly device, the ejection component includes a positive push-up block connected to the positive locking screw and a reverse push-up block connected to the reverse locking screw, the positive push-up block has a thread matching the positive locking screw, and the reverse push-up block has a thread matching the reverse locking screw;

[0009] The locking component also includes a first back cap that cooperates with the positive buckle top block and a second back cap that cooperates with the reverse buckle top block. The first back cap is used to fasten the positive buckle top block and the positive locking screw together, and the second back cap is used to fasten the reverse buckle top block and the reverse locking screw together.

[0010] Preferably, in the above-mentioned oil cylinder cover disassembly device, the bottoms of the positive buckle top block and the reverse buckle top block are installed with detachable adsorption units that can adsorb themselves onto the well control gate blowout preventer or the oil cylinder cover.

[0011] Preferably, in the above-mentioned oil cylinder head disassembly device, the bottoms of the positive buckle top block and the reverse buckle top block each have an embedding hole that can accommodate the detachable adsorption unit.

[0012] Preferably, in the above-mentioned oil cylinder head disassembly device, the detachable adsorption unit is a magnet block.

[0013] Preferably, in the above-mentioned cylinder head disassembly device, the bottom of the positive buckle top block and the negative buckle top block each have two embedding holes, and one magnet block is embedded in each embedding hole, and the magnet block is a cylinder with a diameter of 10mm to 15mm and a thickness of 10mm to 15mm.

[0014] Preferably, in the above-mentioned cylinder head disassembly device, the cross-sectional shapes of the positive buckle top block and the negative buckle top block include a rectangle at the lower part and a semicircle at the upper part, and their length is 50mm to 60mm, thickness is 30mm to 35mm, and height is 65mm to 75mm.

[0015] Preferably, in the above-mentioned oil cylinder head disassembly device, the cross-section of the engaging portion in the middle portion of the mating sleeve is an external hexagonal structure, and the cross-sections of the portions on both sides of the external hexagonal structure are circular structures.

[0016] Preferably, in the above-mentioned oil cylinder head disassembly device, the wrench component is a ratchet wrench, and the ratchet wrench includes a wrench with an inner hexagonal structure, a ratchet, and a stop block and a handle fixed to the wrench.

[0017] It can be seen from the above technical solution that the above-mentioned cylinder head disassembly device provided by the present invention, when being placed in the space between the disassembly object and the cylinder head, the ejection component contacts the disassembly object and the cylinder head respectively, and when the mating sleeve is rotated by the wrench component, the positive locking screw and the reverse locking screw extend outward to both ends respectively so that the ejection component extends outward and pushes the cylinder head outward, so that the cylinder head is out of contact with the disassembly object. It can be seen that only the wrench component needs to be twisted to conveniently and labor-savingly disassemble the cylinder head, without the need for manual knocking, and no damage will be caused to related parts. Therefore, the device can effectively solve the problem of difficult disassembly and repair of the cylinder head, is more convenient to operate, improves maintenance efficiency, and can effectively protect related parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 This is an overall schematic diagram of an embodiment of a cylinder cover disassembly device provided by the utility model;

[0020] Figure 2 A schematic diagram of a matching sleeve in an embodiment of a cylinder head disassembly device;

[0021] Figure 3 It is a structural diagram of the positive buckle top block. DETAILED DESCRIPTION

[0022] The core of the utility model is to provide a cylinder head disassembly device, which can effectively solve the problem of difficulty in disassembling and repairing the cylinder head, is more convenient to operate, improves maintenance efficiency, and can effectively protect related components.

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides an embodiment of a cylinder cover disassembly device. Figure 1 and Figure 2 As shown, Figure 1This is an overall schematic diagram of an embodiment of a cylinder cover disassembly device provided by the utility model. Figure 2 Schematic diagram of a matching sleeve in an embodiment of a cylinder head disassembly device. The cylinder head disassembly device may include a wrench component 1, a matching sleeve 2, a locking component 3, and two ejection components 41 and 42. The outer periphery of the matching sleeve 2 has an engaging portion 21 that matches the wrench component 1. That is, the wrench component 1 can engage the engaging portion 21, thereby driving the matching sleeve 2 to rotate. The locking component 3 includes a positive locking screw 31 and a negative locking screw 32 that are respectively inserted into the inner walls of the two ends of the matching sleeve 2 and are connected by the internal threads on the inner walls. In this way, when the matching sleeve 2 rotates, the locking screws can be moved by utilizing the threaded matching relationship between the matching sleeve and the two locking screws. Since the two locking screws are respectively the positive locking screw and the reverse locking screw, when the matching sleeve rotates, the two locking screws can be moved in opposite directions. In this embodiment, the two are moved outwards respectively to achieve the purpose of ejecting the cylinder head, and the ejection components 41 and 42 are respectively fixed to the opposite ends of the positive locking screw 31 and the reverse locking screw 32. This ejection component and the locking screw can It can be integrated or split, which is not limited here. Its main function is to increase the contact area, make the pressure more dispersed, and avoid bursting. When the oil cylinder cover disassembly device is placed in the space between the disassembly object and the oil cylinder cover, the depth of the positive locking screw and the reverse locking screw inserted into the matching sleeve can be adjusted so that the ejection parts 41 and 42 are in contact with the side surfaces of the disassembly object and the oil cylinder cover respectively. When the matching sleeve 2 is rotated by the wrench part 1, the positive locking screw 31 and the reverse locking screw 32 are respectively extended to the two ends so that the ejection parts 41 and 42 are extended outwards. Stretch and push the cylinder head outward to disengage the cylinder head from the disassembly object, that is, remove the cylinder head from the disassembly object. It should be noted here that since the two locking screws and the push block are fixed, and the push block is stuck and cannot rotate when in contact with the disassembly object and the cylinder head, the two locking screws do not rotate in the process of extending to both ends, but simply move laterally to apply pressure to both ends. As the moving distance increases, the cylinder head can eventually be pushed out from the disassembly object to achieve separation of the two.

[0025] It should be noted that the above-mentioned disassembly object can be the side door of the well control gate blowout preventer. In actual operation, it is necessary to first remove the cylinder head clamping bolts of the gate blowout preventer whose cylinder cover needs to be disassembled, and then place the above-mentioned cylinder head disassembly device between the side door of the well control gate blowout preventer and the cylinder head, and then push the positive and negative locking screws at both ends of the matching sleeve to a certain length, so that one of the ejection parts fixed at both ends contacts the cylinder head to be disassembled, and the other end contacts the side door of the gate blowout preventer to be disassembled. The bottom is in contact, and then the wrench component, the matching sleeve, the locking component and the ejection component are coordinated. The wrench component is used to turn the matching sleeve to drive the positive and negative locking screws at both ends to extend outward to both ends, thereby achieving the purpose of ejecting the cylinder cover of the side door oil cylinder of the well control gate blowout preventer. The device can effectively solve the problem of difficult disassembly of the cylinder cover of the side door oil cylinder of the well control gate blowout preventer and is convenient to operate, saving time and effort and high efficiency, and can effectively reduce the damage of the cylinder cover of the side door oil cylinder of the well control gate blowout preventer to related seals during the disassembly process.

[0026] It can be seen from the above technical solution that the above-mentioned cylinder head disassembly device provided by the utility model, when being placed in the space between the disassembly object and the cylinder head, the ejection component contacts the disassembly object and the cylinder head respectively, and when the mating sleeve is rotated by the wrench component, the positive locking screw and the reverse locking screw extend outward to both ends respectively so that the ejection component extends outward and pushes the cylinder head outward, so that the cylinder head is out of contact with the disassembly object. It can be seen that only the wrench component needs to be turned to conveniently and labor-savingly disassemble the cylinder head, without the need for manual knocking, and no damage will be caused to related parts. Therefore, the device can effectively solve the problem of difficult disassembly and repair of the cylinder head, is more convenient to operate, improves the efficiency of maintenance, and can effectively protect related parts.

[0027] In a specific embodiment of the above-mentioned cylinder head disassembly device, the ejection parts 41 and 42 are detachably connected to the locking part 3. In this case, it is more suitable for loading and unloading operations. Specifically, the ejection parts can be placed separately in the position where they need to be placed, and then the locking part can be connected to them, and then other parts can be installed. In this way, no matter how small or irregular the placement space is, the cylinder head disassembly device can be conveniently placed. Moreover, when the disassembly is completed and the device needs to be taken out, it can be removed first and then taken out, which will also bring convenience. Of course, this is a preferred solution. An integrated design can also be used, which is not limited here.

[0028] Furthermore, the above-mentioned ejection parts 41 and 42 include a positive buckle ejection block 41 connected to the positive locking screw 31 and a reverse buckle ejection block 42 connected to the reverse locking screw 32. The positive buckle ejection block 41 has a thread matching the positive locking screw 31, and the reverse buckle ejection block 42 has a thread matching the reverse locking screw 32; the locking part 3 also includes a first back cap 33 matching the positive buckle ejection block 41 and a second back cap 34 matching the reverse buckle ejection block 42. The first back cap 33 is used to fasten the positive buckle ejection block 41 and the positive locking screw 31 together, and the second back cap 34 is used to fasten the reverse buckle ejection block 42 and the reverse locking screw 32 together. It should be noted that the first back cap 33 and the second back cap 34 have both internal threads and external threads, which are fixed to the locking screw using the internal threads, and fixed to the internal threads of the top block using the external threads. In this way, the top block and the locking screw can be firmly fixed into one, ensuring that no relative movement occurs during the disassembly process, preventing them from slipping during use, and making the output more uniform.

[0029] Further, refer to Figure 3 , Figure 3 This is a structural diagram of a positive buckle top block. The bottom of the positive buckle top block 41 and the negative buckle top block 42 are equipped with a detachable adsorption unit 5 that can adsorb itself to the well control gate blowout preventer or the cylinder head. In this case, it can be fixed to the well control gate blowout preventer or the cylinder head first, keeping it in position and then installing other components. This ensures more accurate positioning and eliminates the disadvantage of uneven force on the ejected object caused by unstable hand support. No sliding will occur during the installation process, making disassembly operation more convenient. In a further embodiment, the bottom of the positive top block 41 and the reverse top block 42 can each have an embedding hole (not shown) for accommodating the detachable adsorption unit 5. In other words, the unit can be embedded in the embedding hole without protruding from the outside, thereby preventing it from falling out easily. This can also ensure a larger contact area and more accurate positioning during the adsorption process. Of course, other methods can also be used to place the detachable adsorption unit 6. For example, a detachable adsorption unit with the same shape and area as the bottom surface of the positive top block or the reverse top block can be used. This can also ensure a sufficiently large planar contact area and greater adsorption force, but it is more expensive. Therefore, the appropriate selection can be made based on a comprehensive consideration of cost and adsorption force. Specifically, the detachable adsorption unit can preferably be a magnet block. Since components such as the cylinder head and the well control gate blowout preventer are generally made of iron, magnets can be well adsorbed. Magnets are also relatively low in cost and easy to obtain. Therefore, the use of magnets here can achieve both cost and adsorption effect advantages. Of course, if the object to be disassembled is not made of iron, other corresponding adsorption units can be selected. This is not limited here.

[0030] In a further embodiment, the bottom of the above-mentioned positive buckle top block 41 and the reverse buckle top block 42 can have two embedding holes, and a magnet block is embedded in each embedding hole. The magnet block can preferably be a cylinder with a diameter of 10mm to 15mm and a thickness of 10mm to 15mm. In this case, it can be ensured that the adsorption force at the bottom of the top block is more uniform and not easy to fall off. Moreover, the cylindrical magnet block of this size can ensure greater adsorption force and is easy to insert into the embedding hole. Of course, the size can also be adjusted according to actual needs, which is not limited here. Moreover, continue to refer to Figure 3 The cross-sectional shape of the positive buckle top block 41 and the reverse buckle top block 42 can include a rectangle at the bottom and a semicircle at the top, and their length can preferably be 50mm to 60mm, the thickness can preferably be 30mm to 35mm, and the height can preferably be 65mm to 75mm. In this case, the semicircular portion at the top is used to provide a threaded hole, and the rectangular portion at the bottom ensures that it can be stably placed on a flat surface for fixation. The height also ensures sufficient space for inserting the magnet block. This can maximize the savings in manufacturing materials and reduce manufacturing costs while fully meeting various functions. Of course, the shape can also be adaptively adjusted according to actual needs, which is not limited here.

[0031] In a preferred embodiment of the above-mentioned oil cylinder cover disassembly device, continue to refer to Figure 2 The cross-section of the engaging portion 21 in the middle part of the mating sleeve is preferably an external hexagonal structure, which can make it easier for the wrench to rotate, and the cross-sections of the two side parts 22 of the external hexagonal structure are circular structures, which can match the internal threads and achieve the effect of saving manufacturing materials on the basis of meeting various needs. Of course, this shape can also be adjusted according to actual needs, which is not limited here.

[0032] In another preferred embodiment of the above-mentioned oil cylinder head disassembly device, the above-mentioned wrench component 1 can be a ratchet wrench, which includes a wrench 11 with a hexagonal structure, a ratchet 12, a stop block 13 fixed to the wrench 11, and a handle 14. The ratchet 12 and the stop block 13 cooperate with each other to ensure that the mating sleeve can only be rotated in one direction and cannot be rotated in the other direction. This makes the operation more convenient and the disassembly process more efficient. Of course, this is a preferred solution. In fact, the purpose can also be achieved by using an ordinary wrench. This is not limited to the solution using a ratchet wrench.

[0033] The working process of the above device is described in detail below:

[0034] First, insert the inner hexagonal hole of the ratchet wrench into the outer hexagonal hole of the corresponding matching sleeve, and then screw the positive lock screw into one end of the positive buckle of the matching sleeve, and then screw the reverse lock screw into one end of the reverse buckle of the matching sleeve, and at the same time, screw the positive and reverse back caps into the corresponding positive and reverse bolts respectively; then embed the four magnet blocks into the four corresponding embedding holes of the two positive and reverse top blocks; utilize the magnetic adsorption performance of the magnet block to effectively fix the positive top block and the reverse top block on the body of the ejected object, which is the cylinder head, which eliminates the disadvantage of uneven force on the ejected object caused by unstable hand support, and at the same time, through the adsorption function of the magnet block, it can The positive push-in block and the reverse push-in block can be quickly installed on the main body of the ejected object for disassembly. After the ejected object is disassembled, the positive push-in block and the reverse push-in block can be quickly removed, which is more convenient for operation. Then screw the positive push-in block into one end of the positive push-in locking screw and use the positive push-in back cap to tighten it. At the same time, screw the reverse push-in block into one end of the reverse push-in locking screw and use the reverse push-in back cap to tighten it. When in use, the depth of screwing in the positive and reverse push-in locking screws can be adjusted according to the distance between the side door of the gate blowout preventer and the cylinder head, that is, the distance between the positive and reverse push-in blocks can be adjusted according to the work needs, and then the positive and reverse push-in blocks can be adsorbed between the side door of the gate blowout preventer and the cylinder head to be disassembled by using the magnetic block iron. Figure 1 As shown, Figure 1 The outer side of the positive ejector block on the right side is positioned adjacent to one side of the gate BOP side door, while the outer side of the negative ejector block on the left side is positioned adjacent to one side of the cylinder cover. A ratchet wrench is then used to cause the positive and negative locking screws to extend outward relative to each other. Since the gate BOP side door is stationary, the cylinder cover can be ejected. Furthermore, since the cylinder is cylindrical in shape, two sets of disassembly devices can be manufactured simultaneously to maintain balance during cylinder cover ejection, and placed at the front and rear ends of the gate BOP side door, respectively, during operation. By using the ratchet wrench to activate the positive and negative locking screws, the positive and negative ejector blocks are pushed to eject the cylinder cover. This cylinder cover removal device not only improves the efficiency of disassembling the gate BOP side door cylinder cover, but also significantly reduces damage to the gate BOP side door cylinder cover during operation. It is an effective and convenient tool for resolving the difficulty of disassembling and repairing the gate BOP side door cylinder cover.

[0035] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cylinder head disassembly device, characterized in that: The cam is secured to the rear of the lever and has an angular channel formed between the end of the lever and the side of the lever, and the cam has a channel slot that receives the lever's internal thread and a channel slot that receives the lever's internal thread.

2. The oil cylinder cover disassembly device according to claim 1, characterized in that: The ejection component and the locking component are detachably connected.

3. The oil cylinder cover disassembly device according to claim 2, characterized in that: The ejection component includes a positive push-up block connected to the positive locking screw and a reverse push-up block connected to the reverse locking screw, wherein the positive push-up block has a thread matching the positive locking screw, and the reverse push-up block has a thread matching the reverse locking screw; The locking component also includes a first back cap that cooperates with the positive buckle top block and a second back cap that cooperates with the reverse buckle top block. The first back cap is used to fasten the positive buckle top block and the positive locking screw together, and the second back cap is used to fasten the reverse buckle top block and the reverse locking screw together.

4. The oil cylinder cover disassembly device according to claim 3, characterized in that: The bottoms of the positive buckle top block and the reverse buckle top block are installed with detachable adsorption units that can adsorb themselves on the well control gate blowout preventer or the cylinder cover.

5. The oil cylinder cover disassembly device according to claim 4, characterized in that: The bottoms of the positive buckle top block and the reverse buckle top block are both provided with an embedding hole capable of accommodating the detachable adsorption unit.

6. The oil cylinder cover disassembly device according to claim 5, characterized in that: The detachable adsorption unit is a magnet block.

7. The oil cylinder cover disassembly device according to claim 6, characterized in that: The bottom of the positive buckle top block and the reverse buckle top block each has two embedding holes, and a magnet block is embedded in each embedding hole. The magnet block is a cylinder with a diameter of 10mm to 15mm and a thickness of 10mm to 15mm.

8. The oil cylinder cover disassembly device according to claim 3, characterized in that: The cross-sectional shapes of the positive buckle top block and the reverse buckle top block include a rectangle at the lower part and a semicircle at the upper part, and their length is 50mm to 60mm, thickness is 30mm to 35mm, and height is 65mm to 75mm.

9. The oil cylinder cover disassembly device according to any one of claims 1 to 8, characterized in that: The cross section of the engaging portion in the middle portion of the matching sleeve is an outer hexagonal structure, and the cross sections of the two side portions of the outer hexagonal structure are circular structures.

10. The oil cylinder cover disassembly device according to claim 9, characterized in that: The wrench component is a ratchet wrench, which includes a wrench with an inner hexagonal structure, a ratchet, and a stop block and a handle fixed on the wrench.

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