A device for disassembling a screw pump

Abstract

The utility model provides a device for dismantling screw rod pump, include: screw part, the pull plate of surface is provided with through -hole, the sleeve of port and the surface abut of pull plate, and set up in the pump mouth of screw rod pump and with the backing pad connection of screw rod pump's pad, the outer contour of through -hole is located in the port of sleeve, screw part passes through through -hole, sleeve and enters the recess of screw rod end of screw rod pump in proper order, be provided with between pull plate and pad weightlifter. The utility model can reduce the labor intensity when dismantling screw rod, bearing, promote work efficiency, reduce the damage caused to bearing, screw rod in the process of dismantling.

Description

Technical Field

[0001] This utility model belongs to the field of oil extraction machinery technology, specifically, it relates to a device for disassembling a screw pump. Background Technology

[0002] Many oil fields use heavy crude oil, which requires the use of screw pumps for transportation. Due to the high viscosity and density of crude oil, the screw pumps experience relatively heavy loads during operation, leading to an increase in the frequency of screw pump maintenance year by year. To ensure the safe and stable operation of the screw pumps, regular maintenance and upkeep are necessary. During maintenance and upkeep, the screw pumps and bearings need to be disassembled. Current solutions typically employ old-fashioned hammering disassembly methods, which cause varying degrees of damage to the bearings and screw pumps, while also increasing workload and maintenance costs. Utility Model Content

[0003] One objective of this invention is to provide a device for disassembling a screw pump, which can reduce the labor intensity during screw and bearing disassembly, improve work efficiency, and reduce damage to the bearing and screw during the disassembly process.

[0004] According to this utility model, a device for disassembling a screw pump is provided, comprising: a threaded component, a pull plate with a through hole on its surface, a sleeve with its port abutting against the surface of the pull plate, and a pad disposed at the pump port of the screw pump and connected to the bushing of the screw pump. The outer contour of the through hole is located inside the port of the sleeve. The threaded component passes through the through hole and the sleeve in sequence and enters the groove at the end of the screw of the screw pump. A lifting device is disposed between the pull plate and the pad.

[0005] In a preferred embodiment, the end of the threaded component away from the screw pump is threadedly connected to a nut.

[0006] In a preferred embodiment, the device for disassembling the screw pump further includes a locking nut that is threadedly connected to the threaded component.

[0007] In a preferred embodiment, the locking nut is positioned near the nut and in contact with the surface of the pull plate on the side away from the pad.

[0008] In a preferred embodiment, the port of the sleeve is fixedly connected to the surface of the pull plate.

[0009] In a preferred embodiment, the surface of the pull plate is provided with two through holes, and the outer contours of the two through holes are respectively located in the ports of the two sleeves. The two threaded parts pass through the through holes and the sleeves in sequence and enter the two grooves at the end of the screw of the screw pump respectively.

[0010] In a preferred embodiment, the two threaded parts are respectively threaded to the two locking nuts, and the ends of the two threaded parts away from the screw pump are respectively threaded to the nuts.

[0011] In a preferred embodiment, the threaded component is a bolt or a screw.

[0012] In a preferred embodiment, the pad is connected to the bushing of the screw pump via a threaded connection.

[0013] In a preferred embodiment, the pull plate and the pad are arranged opposite to each other and both are constructed into a cuboid shape.

[0014] This utility model has at least the following technical effects:

[0015] According to this utility model, a threaded component, a pull plate with a through hole on its surface, a sleeve whose end abuts against the surface of the pull plate, and a pad plate disposed at the pump inlet of a screw pump and connected to the bushing of the screw pump via the threaded component are provided. Since the outer contour of the through hole is located within the end of the sleeve, the threaded component passes sequentially through the through hole and the sleeve and enters the groove at the end of the screw of the screw pump. A lifting device is disposed between the pull plate and the pad plate. By operating the lifting device, the screw of the screw pump is successfully separated from the front bearing, thereby reducing the labor intensity during screw and bearing disassembly, improving work efficiency, and reducing damage to the bearing and screw during disassembly. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a device for disassembling a screw pump according to an embodiment of the present invention is shown.

[0017] Figure 2 A schematic top view of the pull plate and sleeve of a device for disassembling a screw pump according to an embodiment of the present invention is shown.

[0018] In this application, all the accompanying drawings are schematic drawings, used only to illustrate the principle of the present invention, and are not drawn to scale. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of the utility model, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] like Figures 1 to 2 As shown, the device 100 for disassembling a screw pump according to this utility model includes: a threaded component 2, a pull plate 3 with a through hole 31 on its surface, a sleeve 4 with its port abutting against the surface of the pull plate 3, and a pad 1 disposed at the pump port of the screw pump (not shown) and connected to the bushing of the screw pump via the threaded component. The outer contour of the through hole 31 is located inside the port of the sleeve 4. The threaded component 2 passes through the through hole 31 and the sleeve 4 in sequence and enters the groove at the end of the screw of the screw pump. A lifting device 5 is clamped between the pull plate 3 and the pad 1. Both the pad 1 and the bushing of the screw pump have connecting holes, and connecting bolts pass through the connecting holes to connect the pad 1 and the bushing of the screw pump. The lifting device 5 can be a hydraulic jack, which relies on the friction formed between itself and the pull plate 3 and the pad 1 to offset the weight of the lifting device 5, thereby being disposed between the pull plate 3 and the pad 1. Optionally, the pull plate 3 and the pad 1 are arranged opposite each other and are both constructed into a cuboid shape.

[0023] According to this utility model, a threaded component 2, a pull plate 3 with a through hole 31 on its surface, a sleeve 4 whose port abuts against the surface of the pull plate 3, and a pad 1 disposed at the pump port of the screw pump and connected to the bushing of the screw pump via the threaded component are provided. Since the outer contour of the through hole 31 is located inside the port of the sleeve 4, the threaded component 2 passes through the through hole 31 and the sleeve 4 in sequence and enters the groove at the end of the screw of the screw pump (not shown in the figure). A lifting device 5 is disposed between the pull plate 3 and the pad 1. By operating the lifting device 5, the reaction force is used to overcome the friction between the screw and the pump body until the screw of the screw pump is successfully separated from the front bearing. This reduces the labor intensity during the disassembly of the screw and bearing, improves work efficiency, and reduces the damage to the bearing and screw during the disassembly process.

[0024] In one or more embodiments, the threaded component 2 may be a bolt or a screw.

[0025] In one or more embodiments, the end of the threaded member 2 furthest from the screw pump is threadedly connected to the nut 7. Optionally, the nut 7 is a hexagonal nut.

[0026] In one or more embodiments, the device 100 for disassembling a screw pump according to the present invention further includes a locking nut 6 threadedly connected to the threaded member 2. Optionally, the locking nut 6 is disposed near the nut 7 and contacts the surface of the pull plate 3 on the side away from the pad 1.

[0027] In one or more embodiments, the port of the sleeve 4 is fixedly connected to the surface of the pull plate 3.

[0028] In one or more embodiments, the screw pump includes two screws. The surface of the pull plate 3 is provided with two through holes 31, and the outer contours of the two through holes 31 are respectively located within the ports of the two sleeves 4. Two threaded components 22 pass sequentially through the through holes 31 and the sleeves 4, and respectively enter two grooves at the ends of the screws of the screw pump. The two threaded components 22 are respectively threadedly connected to two locking nuts 6, and the ends of the two threaded components 2 away from the screw pump are threadedly connected to nuts 7.

[0029] The following is a brief description of the usage process of the device 100 for disassembling a screw pump according to this utility model. The threaded component 2 is passed sequentially through the through hole 31 on the pull plate 3, the sleeve 4, and the pad 1, and then screwed into the groove at the end of the screw of the screw pump. The locking nut 6, which is threadedly connected to the threaded component 2, is adjusted to adjust the distance between the pull plate 3 and the pad 1. The lifting device is placed between the pad 1 and the pull plate 3, and the locking nut 6 is further adjusted to fix the lifting device through the pad 1 and the pull plate 3. The lifting device is operated to use the reaction force to overcome the friction between the screw and the pump body until the screw of the screw pump is successfully separated from the front bearing, thereby achieving the effect of disassembling the screw of the screw pump.

[0030] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for disassembling a screw pump, characterized in that, include: The system includes a threaded component, a pull plate with a through hole on its surface, a sleeve with its port abutting against the surface of the pull plate, and a pad plate disposed at the pump port of the screw pump and connected to the bushing of the screw pump. The outer contour of the through hole is located inside the port of the sleeve. The threaded component passes through the through hole and the sleeve in sequence and enters the groove at the end of the screw of the screw pump. A lifting device is disposed between the pull plate and the pad plate.

2. The apparatus for disassembling a screw pump according to claim 1, characterized in that, The threaded part is connected to the nut threadedly at the end away from the screw pump.

3. The apparatus for disassembling a screw pump according to claim 2, characterized in that, Also includes: A locking nut that is threadedly connected to the threaded component.

4. The apparatus for disassembling a screw pump according to claim 3, characterized in that, The locking nut is positioned near the nut and contacts the surface of the pull plate on the side away from the pad.

5. The apparatus for disassembling a screw pump according to claim 1, characterized in that, The port of the sleeve is fixedly connected to the surface of the pull plate.

6. The apparatus for disassembling a screw pump according to claim 5, characterized in that, The surface of the pull plate is provided with two through holes, and the outer contours of the two through holes are respectively located in the ports of the two sleeves. The two threaded parts pass through the through holes and sleeves in sequence and enter the two grooves at the end of the screw of the screw pump respectively.

7. The apparatus for disassembling a screw pump according to claim 6, characterized in that, The two threaded parts are respectively threaded to the two locking nuts, and the ends of the two threaded parts away from the screw pump are respectively threaded to the nuts.

8. The apparatus for disassembling a screw pump according to any one of claims 1 to 7, characterized in that, The threaded component is a bolt or a screw.

9. The apparatus for disassembling a screw pump according to claim 1, characterized in that, The pad is connected to the bushing of the screw pump via a threaded connection.

10. The apparatus for disassembling a screw pump according to claim 1, characterized in that, The pull plate and the pad are arranged opposite each other and are both constructed into a cuboid shape.

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