Disassembly mechanism for a threaded coupling and drive device

Abstract

Disassembly mechanism for a threaded coupling, characterized in that the disassembly mechanism comprises: a fastening unit (1) comprising a chuck (11), a base (12) arranged above the chuck (11), a telescopic component (13) arranged at one end of the base (12), and a first fastening element (14) screwed between the chuck (11) and the base (12); a clamping unit (2) comprising a clamping component (21) arranged above the base (12), a second fastening element (22) penetrating the clamping component (21), and a fastening component (23) arranged in the clamping component (21); wherein the fastening unit (1) and the clamping unit (2) are separated from one another and act together on a clamping element (3).

Description

TECHNICAL FIELD

[0001] The invention relates to the technical field of maintenance of electromechanical devices and, in particular, to a disassembly mechanism for a threaded coupling and a drive device. STATE OF THE ART

[0002] During the operation and maintenance of a hydropower plant, the drainage system is responsible for effectively collecting leakage water from the plant, water for production and housing, and runoff water from plant maintenance into a collection well, and pumping this water out of the plant through a drainage pump to ensure the safe and stable operation of the hydropower plant. In particular, the stability and reliability of the long-shaft deep well pump, as a key device in the drainage system, directly impact the operating efficiency of the entire drainage system.

[0003] However, during routine maintenance and overhaul of deep well pumps with long shafts, disassembling the threaded coupling becomes a challenging task. As a critical connecting element between the pump body and the drive shaft, the threaded coupling is often designed with a left-hand thread, allowing it to become increasingly tighter with the direction of motor rotation. Although this design helps ensure the stability of the pump body during operation, it poses significant difficulties during disassembly.

[0004] Traditional disassembly methods mainly use tools such as pipe wrenches or wrenches, but these tools need to find suitable support points during use to balance the reaction force. Due to the different positions of the threaded coupling, the position of the pipe wrench or wrench needs to be frequently adjusted, which not only greatly increases the disassembly workload but also seriously affects work efficiency. Traditional disassembly methods often require multiple people to work together, which not only greatly increases labor costs but also brings numerous safety hazards. If multiple people do not work together properly during the disassembly process, safety accidents are very easy to occur, such as slipping and falling when the coupling is loose.More seriously, if the coupling cannot be easily removed, hot work is often required, which undoubtedly further increases the safety risks of the operation. CONTENT OF THE PRESENT INVENTION

[0005] The technical problem to be solved by the present invention is that due to the different positions of the threaded coupling, the position of the pipe wrench or wrench must be frequently adjusted, which not only significantly complicates disassembly but also impairs work efficiency. If the coupling cannot be disassembled, hot work is required.

[0006] In order to achieve the above technical features, the purpose of the present utility model is realized as follows: Disassembly mechanism for a threaded coupling, that the disassembly mechanism comprises: a fastening unit comprising a chuck, a base arranged above the chuck, a telescopic component arranged at one end of the base and a first fastening element which is screwed between the chuck and the base; a clamping unit comprising a clamping component arranged above the base, a second fastening element penetrating the clamping component, and a fastening component arranged in the clamping component; wherein the fastening unit and the clamping unit are separate from each other and act together on a clamping element.

[0007] Preferably, the top of the base is provided with a protrusion, a round hole provided at the axis center of the protrusion, and a chamfer at the bottom of the base.

[0008] Preferably, the chuck and the base are each provided with a slot opening.

[0009] Preferably, the telescopic component comprises a housing fixedly disposed at the axial center of the groove opening, a piston rod disposed in the interior of the housing, an elastic member disposed on the peripheral side of the piston rod, and an oil passage provided on the outer wall of the housing.

[0010] Preferably, an annular groove is formed on the outer wall of the housing.

[0011] Preferably, the clamping component comprises a first clamping element arranged above the base and a second clamping element arranged on one side of the first clamping element.

[0012] Preferably, the first clamping element and the second clamping element are each provided with a round groove; wherein the first clamping element and the second clamping element are each provided with a toothed portion, and the two toothed portions cooperate with each other; wherein a limiting groove is provided at one end of the first clamping element.

[0013] Preferably, the fastening component comprises a ball disposed in the limiting groove, a threaded rod fixedly disposed on one side of the ball, and a nut disposed on one end of the threaded rod.

[0014] Preferably, the clamping element comprises a sleeve arranged on the axis center of the fastening unit and a connecting rod screwed to the top of the sleeve.

[0015] The positive effect of the present invention is that, thanks to the interaction of the split disassembly mechanism and the telescopic component, it can flexibly adapt to the disassembly requirements of couplings in different positions and can be easily operated by a single person, significantly reducing disassembly effort and improving work efficiency. At the same time, the hot work required for conventional disassembly is avoided, ensuring the safety and reliability of the disassembly process and providing an efficient and safe solution for equipment maintenance.

[0016] Another object of the present invention is to provide a drive device designed to solve the problem that the conventional disassembly method often requires the cooperation of multiple people, which not only significantly increases labor costs but also poses numerous safety risks. If multiple people do not cooperate properly during the disassembly process, safety accidents can easily occur, such as slipping and falling when the clutch disengages.

[0017] In a preferred embodiment of the drive device of the present invention, the drive unit comprises an oil feed pump and a feed pipe arranged on one side of the oil feed pump.

[0018] The positive effect of the present invention is that the high labor cost caused by the cooperation of multiple people in the conventional disassembly method is greatly reduced and the potential safety hazards are largely eliminated, thereby effectively avoiding safety accidents such as slips and falls of people due to insufficient coordination and cooperation and improving the efficiency of disassembly, and the disassembly can also be carried out by a single person. SHORT DESCRIPTION OF THE DRAWING

[0019] In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings for embodiments of the present invention will be briefly described below.

[0020] Included: Fig. 1 shows a partially enlarged schematic cross-sectional view of a fastening unit; Fig. 2 shows a perspective schematic view of a clamping unit; Fig. 3 shows a perspective schematic view of a drive device. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in more detail below, along with specific implementation methods and drawings.

[0022] With reference to Fig. 1 to 2, it is provided, disassembly mechanism for a threaded coupling, characterized in that the disassembly mechanism comprises the following: a fastening unit 1 comprising a chuck 11, a base 12 arranged above the chuck 11, a telescopic component 13 arranged at one end of the base 12, and a first fastening element 14 screwed between the chuck 11 and the base 12; a clamping unit 2 comprising a clamping component 21 arranged above the base 12, a second fastening element 22 penetrating the clamping component 21 and a fastening component 23 arranged in the clamping component 21; wherein the fastening unit 1 and the clamping unit 2 are separated from each other and act together on a clamping element 3.

[0023] That in the present embodiment, the chuck 11 is arranged below the base 12 and the two are separated, being firmly connected by the first fastening element through a thread and a telescopic component 13 is provided on one side of the top of the base 12; wherein the clamping unit 2 is arranged above the fastening unit 1 and the two are separated and have no connecting relationship, wherein the second fastening element 22 is arranged through one end of the clamping component 21 and the clamping component 21 rotates around the second fastening element 22, and the fastening component 23 is arranged at the other end of the clamping component 21 and is located inside the clamping component 21; the clamping element 3 is arranged between the fastening unit 1 and the clamping unit 2 and these act together on the clamping element 3.

[0024] In use, the clamping member 3 initially stands at a certain position and is divided into two parts, with the upper end being slightly thinner and the lower end thicker. First, the fixing unit 1 is inserted from the thinner part through the recess on the fixing unit 1 and pushed down to the thicker part, and at this time, the entire fixing unit 1 is fixed at a certain height of the clamping member 3. The chuck 11 serves to fix the axis center so that it cannot wobble, and the base 12 is fixed at a certain position so that it cannot move upward. The chuck 11 and the base 12 cooperate to achieve fixing in one position, and the base 12 is provided at the junction between the thicker and thinner parts; The clamping unit 2 clamps the thinner end of the clamping element 3 by the clamping component 21 and places it on the top of the base 12. The opening size of the clamping component 21 is adjusted by the fixing component 23, and the clamping component 21 is pushed through the extended rod by the telescopic component 13 to release the clamping element 3.

[0025] In summary, the fixing unit 1 and the clamping unit 2 are separate and there is no direct connection between them. The assembly and disassembly process is flexible. During operation, the fixing unit 1 and the clamping unit 2 can be adjusted separately, improving work efficiency and reducing operating costs. Furthermore, since the fixing component 23 can adjust the opening size of the clamping component 21, the clamping mechanism can be adapted to clamping elements of different sizes and is highly versatile. By using the telescopic component 13 on one side of the top of the base 12 and pushing the clamping component 21 with its extended rod, the clamping element can be released. When the clamping element needs to be adjusted or disassembled, the release process can be carried out quickly and conveniently.

[0026] With reference to Fig. 1-2 In one embodiment of the present application, the top surface of the base 12 is provided with a protrusion 121, a round hole 122 provided at the axis center of the protrusion 121, and a chamfer 123 at the bottom of the base 12.

[0027] As an optional embodiment, it is provided that the chuck 11 and the base 12 are each provided with a groove opening H.

[0028] As an optional embodiment, the telescopic component 13 is provided with a housing 131 fixedly disposed at the axial center of the groove opening H, a piston rod 132 disposed in the interior of the housing 131, an elastic member 133 disposed on the peripheral side of the piston rod 132, and an oil passage 134 provided on the outer wall of the housing 131.

[0029] As an optional embodiment, it is provided that an annular groove J is formed on the outer wall of the housing 131.

[0030] In the present embodiment, the protrusion 121 is fixedly disposed on the top of one side of the base 12, and a round hole 122 is provided at the axis center of the protrusion 121. A groove whose upper part is circular cylindrical is provided on one side of the base 12, and a chamfer 123 is provided at the bottom. The main purpose of the chamfer 123 is to more firmly connect the thicker and thinner parts so that the fastening unit 1 does not shake. The chuck 11 and the base 12 are each provided with a groove opening H, and the first fastening member 14 is screwed through the groove opening H. the telescopic component 13 is arranged on the axis center of the round hole 122 and cooperates with the round hole 122, wherein an oil line 134 is arranged on the outer wall of an end of the housing 131 facing away from the base 12 and a piston rod 132 is arranged in the housing 131, and wherein the elastic element 133 is arranged on the circumference of the piston rod 132, and the rear portion of the piston rod 132 is circular cylindrical and fits the inner wall of the housing 131, and the oil line 134 is connected to the interior of one end of the housing 131, wherein an annular groove J is provided on the outer wall on a side of the housing 131 facing the base 12, which cooperates with the hump 121 to fix the latter.

[0031] As an optional embodiment, it is provided that the clamping component 21 comprises a first clamping element 211 arranged above the base 12 and a second clamping element 212 arranged on one side of the first clamping element 211.

[0032] As an optional embodiment, it is provided that the first clamping element 211 and the second clamping element 212 are each provided with a round groove K; wherein the first clamping element 211 and the second clamping element 212 are each provided with a tooth portion L and the two tooth portions L cooperate with each other; wherein a limiting groove N is provided at one end of the first clamping element 211.

[0033] As an optional embodiment, it is provided that the fastening component 23 comprises a ball 231 arranged in the limiting groove N, a threaded rod 232 fixedly arranged on one side of the ball 231, and a nut 233 arranged on one end of the threaded rod 232.

[0034] As an optional embodiment, it is provided that the clamping element 3 comprises a sleeve 31 arranged on the axis center of the fastening unit 1) and a connecting rod 32 screwed to the top of the sleeve 31.

[0035] In the present embodiment, the clamping component 21 is arranged above the base 12 and includes a first clamping element 211 and a second clamping element 212, wherein the first clamping element 211 and the second clamping element 212 are each provided with a circular groove K and a tooth portion L, and the two tooth portions L cooperate with each other. A groove is provided in the center of one end of the first clamping element 211, and one end of the second clamping element 212 is arranged in the groove, wherein the second fastening element 22 penetrates the circular groove K of the first clamping element 211 and the second clamping element 212, and when the first clamping element 211 is placed at a certain position, the second clamping element 212 can clamp the clamping element 3 by taking the second fastening element 22 as the center of the circle and performing the clamping; the limiting groove N is provided at one end of the first clamping member 211, the ball 231 is arranged in the limiting groove N, one end of the threaded rod 232 is fixedly connected to one side of the ball 231, and the other end can be rotated from a horizontal position to the second clamping member 212 for fixing, and when the threaded rod 232 moves to the second clamping member 212, the nut 233 is rotated for fixing, thereby achieving a fixing effect on the clamping member 3; the sleeve 31 is arranged below the connecting rod 32 and screwed thereto, and the clamping component 21 is clamped to the connecting rod 32, and the fastening unit 1 is arranged on the sleeve 31, wherein the chamfer 123 on the bottom of the base 12 cooperates with the end of the sleeve 31 and assumes a fastening function.

[0036] In use, during assembly, the chuck 11 and the base 12 are first screwed together by the first fastener 14, and the connected whole is then inserted from the position of the connecting rod 32 through the recess above and slides down to the position of the sleeve 31, and then the clamping component 21 is connected to each other via the second fastener 22. First, the first clamping member 211 and the second clamping member 212 are opened around the second fastener 22. When the connecting rod 32 is placed in the middle of the two tooth portions L, the second clamping member 212 is rotated to bring the two tooth portions L close to the connecting rod 32. After the ball 231 or the threaded rod 232 is rotated to a certain position, the nut 233 on the threaded rod 232 is rotated to bring it close to the second clamping member 212.The oil is transported through the oil line 134 in the telescopic component 13 into the interior of the housing 131, whereby the elastic member 133 and the telescopic rod 132 are pressed together, so that the telescopic rod 132 is displaced horizontally and one side of the first clamping member 211 is pressed to release it.

[0037] In summary, due to the split design of the fixing unit 1 and the clamping unit 2, there is no direct connection between the two, the assembly and disassembly operations are independent and flexible, and the fixing unit 1 and the clamping unit 2 can be adjusted separately, which greatly improves the operating efficiency and reduces the difficulty; the threaded rod 232 with adjustable opening size and the ball 231 in the fixing component 23 and the hydraulically driven piston rod 132 in the telescopic component 13 can cooperate, which not only clamps the clamping element 3 of different sizes, but also transports oil through the oil line 134 into the interior of the housing 131 to compress the elastic element 133 and the piston rod 132, so that the piston rod 132 is displaced horizontally,to press on one side of the first clamping element 211 and thus quickly release the clamping element 3, thereby significantly optimizing the convenience of clamping and releasing. At the same time, the chuck 11 and the base 12 are fixed by the threaded connection of the groove opening H, and the lower chamfer 123 of the base 12 cooperates with the end of the sleeve 31 of the clamping element 3. The annular groove J on the outer wall of the housing 131 and the protrusion 121 of the base 12 are stably fixed, which further improves the compatibility of the mechanism with components of different sizes and shapes.

[0038] With reference to Fig. 1 to 3, the drive unit 4 in an embodiment provided in the present application comprises an oil feed pump 41 and a feed pipe 42 arranged on one side of the oil feed pump 41.

[0039] In the present embodiment, the oil pump 41 and the delivery pipe 42 are firmly connected to each other to ensure a seal between the oil pump 41 and the delivery pipe 42. The other end of the delivery pipe 42 is connected to the oil line 134 in the telescopic component 13 to form a complete disassembly device. By controlling the oil pump 41, the delivery capacity can be flexibly adjusted, thereby achieving precise control of the telescopic length and speed of the telescopic component 13.

[0040] During use, the operator only needs to reliably connect the delivery pipe 42 of the oil delivery pump 41 to the oil line 134 of the telescopic component 13 and can easily adjust the telescopic characteristics of the telescopic component 13 by adjusting the output power of the oil delivery pump 41.

[0041] In summary, the drive unit 4 uses the oil pump 41 as a power source, which significantly reduces labor, lowers costs, and improves efficiency compared to conventional disassembly. Furthermore, the use of the drive unit 4 ensures operator safety during the disassembly process.

[0042] Finally, it should be noted that the methods and devices described in detail above are merely exemplary embodiments and that those skilled in the art may modify these exemplary embodiments in various ways without departing from the scope of the present invention.

Claims

[1] Disassembly mechanism for a threaded coupling, characterized by that the disassembly mechanism includes: a fastening unit (1) comprising a chuck (11), a base (12) arranged above the chuck (11), a telescopic component (13) arranged at one end of the base (12), and a first fastening element (14) screwed between the chuck (11) and the base (12); a clamping unit (2) comprising a clamping component (21) arranged above the base (12), a second fastening element (22) penetrating the clamping component (21), and a fastening component (23) arranged in the clamping component (21); wherein the fastening unit (1) and the clamping unit (2) are separated from one another and act together on a clamping element (3). [2] Disassembly mechanism for a threaded coupling according to claim 1, characterized bythat the top of the base (12) is provided with a hump (121), a round hole (122) provided at the axis center of the hump (121), and a chamfer (123) at the bottom of the base (12). [3] Disassembly mechanism for a threaded coupling according to claim 2, characterized by that the chuck (11) and the base (12) are each provided with a groove opening (H). [4] Disassembly mechanism for a threaded coupling according to claim 3, characterized by that the telescopic component (13) comprises a housing (131) which is fixedly arranged at the axial center of the groove opening (H), a piston rod (132) which is arranged in the interior of the housing (131), an elastic element (133) which is arranged on the peripheral side of the piston rod (132), and an oil line (134) which is provided on the outer wall of the housing (131). [5] Disassembly mechanism for a threaded coupling according to claim 4, characterized bythat an annular groove (J) is formed on the outer wall of the housing (131). [6] Disassembly mechanism for a threaded coupling according to claim 5, characterized by in that the clamping component (21) comprises a first clamping element (211) arranged above the base (12) and a second clamping element (212) arranged on one side of the first clamping element (211). [7] Disassembly mechanism for a threaded coupling according to claim 6, characterized by , that the first clamping element (211) and the second clamping element (212) are each provided with a round groove (K); wherein the first clamping element (211) and the second clamping element (212) are each provided with a toothed portion (L), and the two toothed portions (L) cooperate with each other; wherein a limiting groove (N) is provided at one end of the first clamping element (211). [8] Disassembly mechanism for a threaded coupling according to claim 7, characterized byin that the fastening component (23) comprises a ball (231) arranged in the limiting groove (N), a threaded rod (232) fixedly arranged on one side of the ball (231), and a nut (233) arranged on one end of the threaded rod (232). [9] Disassembly mechanism for a threaded coupling according to claim 8, characterized by that the clamping element (3) comprises a sleeve (31) arranged on the axis center of the fastening unit (1) and a connecting rod (32) screwed to the top of the sleeve (31). [10] Drive device, characterized by that the drive device comprises a disassembly mechanism for a threaded coupling according to one of claims 1 to 9 and also a drive unit (4) which comprises an oil feed pump (41) and a feed pipe (42) arranged on one side of the oil feed pump (41).

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