CN112551433A - Lifting device for drilling pump - Google Patents

Abstract

The invention discloses a lifting device for a drilling pump. A drilling pump lifting device comprises a base assembly, wherein a drilling pump and an oil circuit assembly are arranged on the upper portion of the base assembly, the base assembly is connected with a lifting frame assembly through a lifting hole in the end portion of a traveling beam, and a support frame assembly is arranged below the traveling beam. The device adopts a hoisting frame assembly to hoist the drilling pump, adopts a stacked support frame assembly to provide support for the drilling pump, realizes the function of hoisting the drilling pump to the required height from the ground through mutual matching and coordination actions, and simultaneously has the function of reducing the drilling pump to the ground from a certain height, so that the drilling pump can be loaded on a transport vehicle or unloaded from the transport vehicle by using the device under the condition of no crane. The oil way assembly is integrated in the base, the external space of the drilling pump is not occupied, the device is simple in structure and easy to realize, and the lifting cost of the drilling pump is saved.

Description

Lifting device for drilling pump

Technical Field

The invention belongs to the technical field of petroleum and natural gas exploration and development equipment, and relates to a lifting device for a drilling pump.

Background

When the drilling pump has serious faults at a drilling operation site, the drilling pump needs to be loaded on a transport vehicle to be transported to a professional maintenance plant for maintenance. At present, a drilling pump is generally loaded on a transport vehicle in a hoisting mode of a crane, and the mode is simple and quick, but has some problems. Firstly, the weight of the drilling pump is large, and the hoisting operation can be completed only by a large-tonnage crane. Secondly, the drilling operation site is located in a remote area far away from the city, the distance from the city to the operation site is far, and the time spent by the crane is long. And thirdly, the crane only finishes the hoisting task of loading the drilling pump onto the transport vehicle when arriving at the operation site, returns to the city after finishing the hoisting task, and needs the crane to arrive at the operation site from the city to execute the task of unloading the drilling pump from the transport vehicle when the drilling pump is transported to the operation site from a maintenance plant after being overhauled. All of the above points result in a sharp increase in the hoisting cost, thereby increasing the maintenance cost of the drilling pump.

Disclosure of Invention

The invention aims to provide a hoisting device for a drilling pump, which solves the problem that the drilling pump cannot be loaded on or unloaded from a transport vehicle under the condition of no crane in the prior art.

The technical scheme adopted by the invention is that the hoisting device for the drilling pump comprises a base assembly, wherein the upper part of the base assembly is provided with a drilling pump and an oil circuit assembly, the base assembly is connected with a hoisting frame assembly through a hoisting hole at the end part of a walking beam, and a support frame assembly is arranged below the walking beam.

The base assembly includes the girder, and the girder middle part is provided with rather than mutually perpendicular crossbeam, the shrouding sets up at the girder both ends, and the fixed beam setting becomes overall frame structure at the both sides of crossbeam, fixed connection between girder, crossbeam, shrouding, the fixed beam, the walking beam is installed and can be done axial displacement inside the fixed beam, and the equidistant locating hole that is provided with on the roof beam both sides wall moves about, and the beam-ends portion that moves about is provided with the hole for the installation plays to rise the frame assembly, and the beam-ends portion that moves about lower lateral wall be provided with the support frame on the semicircular boss assorted.

The lower part of the drilling pump is provided with an oil suction seat and an oil inlet seat, the position on the rear side of the drilling pump, which is higher than the oil suction seat, is provided with an oil return seat, and the oil suction seat is connected with an oil suction port of an oil pump through an oil pipe and is used for outputting lubricating oil in the drilling pump to the oil pump. The oil inlet seat is connected with an oil outlet of the oil pump through an oil pipe and a change-over switch, and the oil return seat is connected with an oil return port of the reversing valve through an oil pipe.

The oil circuit assembly comprises an oil pump, an oil outlet of the oil pump is connected with an oil inlet of a change-over switch through an oil pipe, one oil outlet of the change-over switch is communicated with an oil inlet seat through the oil pipe, the other oil outlet of the change-over switch is communicated with an oil inlet of the reversing valve through the oil pipe, the oil outlet of the change-over switch is communicated with the oil inlet seat when a handle of the change-over switch is in a vertical position, and the oil outlet of the change-over switch is communicated.

The oil outlet of the reversing valve is connected with the main valve seat through an oil pipe and an oil pipe; the side surface of the main valve seat is provided with an upper oil port and a lower oil port, the front surface of the main valve seat is provided with an upper oil port and a lower oil port, the upper oil port and the lower oil port are communicated with the upper oil port on the side surface, and the lower oil port are communicated. The function of dividing one path of oil flow into multiple paths and converging the multiple paths of oil flow into one path is realized; the upper and lower oil ports on the side surface of the main valve seat are respectively connected with the reversing valve through an oil pipe and an oil pipe, the four oil ports on the front surface of the main valve seat are respectively communicated with the upper oil port of the joint seat through the oil pipe, and the four oil ports on the front surface of the main valve seat are respectively communicated with the lower oil port of the joint seat through the oil pipe.

The lifting frame assembly is connected with the walking beam through a pin shaft and a pin; the lifting frame assembly conveys high-pressure oil output by the oil way assembly to the inside of the oil cylinder, and the oil cylinder provides power for lifting of the drilling pump.

The crossbeam includes the rectangular pipe, and the rectangular pipe both ends are provided with the connecting plate for connect the hydro-cylinder. Rectangular pipe middle section lower part symmetry is provided with the hoist and mount board for connect the trip roof beam, and rectangular pipe middle section upper portion is provided with the branch oil seat, divides the oil seat openly to be provided with two upper and lower hydraulic fluid ports, and the both sides face all is provided with upper and lower hydraulic fluid port, divides the positive hydraulic fluid port that oils of oil seat and the oil port intercommunication that oils of its both sides face, divides the positive hydraulic fluid port that oils of lower hydraulic fluid port and the lower hydraulic fluid port intercommunication of its both sides face of oil seat.

The oil cylinder comprises a piston rod and a piston rod, the piston rod is arranged inside the cylinder barrel and can move axially inside the cylinder barrel, a piston is arranged at the upper end of the piston rod, the outer diameter of the piston rod is matched with the inner diameter of the cylinder barrel, the lower end of the piston rod is a disc-shaped support used for supporting the oil cylinder, and a connecting plate is arranged on the outer side of the cylinder barrel and used for. The oil feeding port on the joint seat is communicated with the upper cavity of the oil cylinder through an oil pipe, the oil feeding port on the two sides of the oil distribution seat is communicated with the oil feeding port on the side surface of the joint seat through an oil pipe, and the oil feeding port on the two sides of the oil distribution seat is communicated with the oil feeding port on the side surface of the joint seat through an oil pipe.

The support frame assembly comprises a support frame, the support frame comprises a square steel tube and an integral frame structure formed by welding the square steel tube, the square steel tube and a base plate are arranged on the upper layer of the support frame, the base plate is in contact with the lower side of the traveling beam, a semicircular boss arranged on the base plate is matched with a positioning hole in the lower side of the traveling beam, and connecting seats are arranged at four corners of the upper layer of the support frame and used for installing pin shafts and pins; supporting tables are arranged on two sides of the middle part of the supporting frame.

The supporting table comprises a square steel pipe, the square steel pipe is matched with an inner hole of the square steel pipe in the supporting frame, and a through positioning hole is formed in the square steel pipe. The square groove that the bounding wall encloses matches with piston rod lower extreme disc support for realize the relative supporting bench's of piston rod circumference location, the both sides on the support frame upper strata are installed to the supporting bench, fix a position through round pin axle and safety pin between supporting bench and the support frame. Adjacent support frames can be stacked in the vertical direction and are connected into a whole through pin shafts and pins.

The drilling pump has the beneficial effects that the lifting frame assembly is connected to the traveling beam of the base assembly, and the oil cylinder is utilized to realize the lifting of the drilling pump. The support frame assembly is formed by stacking support frames, supports are provided for lifting of the drilling pump, and the lifting height of the drilling pump can be adjusted by increasing or reducing the support frames. When the lifting height of the drilling pump exceeds the height of the bottom plate of the transport vehicle, the transport vehicle is poured below the drilling pump, and then the lifting height of the drilling pump is reduced by reducing the support frames until the drilling pump falls on the bottom plate of the transport vehicle, so that the function of loading the drilling pump onto the transport vehicle is realized. When the drilling pump needs to be unloaded from the transport vehicle, the lifting height of the drilling pump is higher than the bottom plate of the transport vehicle by using the device, at the moment, the transport vehicle is driven out, and then the support frames are gradually reduced to lower the drilling pump to the ground, so that the function of unloading the drilling pump from the transport vehicle is realized. The whole process of the drilling pump lifting does not need a crane, and the lifting cost is reduced.

Drawings

FIG. 1 is a block diagram of a hoist for a drilling pump of the present invention.

Fig. 2 is a block diagram of a riser base assembly for a drilling pump of the present invention.

Fig. 3 is a block diagram of a drill pump with a jack for a drill pump according to the present invention.

Fig. 4 is a structural diagram of a lifting device oil circuit assembly for the drilling pump.

Fig. 5 is a block diagram of the main valve seat of the hoist for a drilling pump of the present invention.

Fig. 6 is a structural view of a lifting frame assembly of a lifting device for a drilling pump of the present invention.

Fig. 7 is a block diagram of a riser beam for the drilling pump of the present invention.

Fig. 8 is a block diagram of a hoist cylinder for a drilling pump of the present invention.

Fig. 9 is a block diagram of a hoist support frame assembly for a drilling pump of the present invention.

Fig. 10 is a block diagram of a hoist support frame for a drilling pump of the present invention.

FIG. 11 is a block diagram of a riser support table for the drilling pump of the present invention.

Fig. 12-18 are working schematic diagrams of a hoisting device for a drilling pump of the invention.

In the figure: 1. the oil pump comprises a base assembly, 2, a drilling pump, 3, an oil circuit assembly, 4, a lifting frame assembly, 5, a support frame assembly, 6, an oil pipe, 7, an oil pipe, 8, a main beam, 9, a cross beam, 10, a sealing plate, 11, a fixed beam, 12, a movable beam, 13, a positioner, 14, an oil suction seat, 15, an oil inlet seat, 16, an oil return seat, 17, an oil pipe, 18, a filter, 19, an oil pump, 20, an oil pipe, 21, a change-over switch, 22, an oil pipe, 23, an oil pipe, 24, a reversing valve, 25, an oil pipe, 26, a main valve seat, 27, an oil pipe, 28, an oil pipe, 29, an oil pipe, 30, an oil pipe, 31, a joint seat, 32, an oil pipe, 33, an oil pipe, 34, 35, an oil pipe, 36, an oil pipe, 37, an oil pipe, 38, a cross beam, 39, an oil cylinder, 40, a bolt, 41, a nut, 42, a gasket, 43, a pin shaft, 48. the connecting plate, 49 hoisting plates, 50 oil distribution seats, 51 connecting plates, 52 cylinders, 53 piston rods, 54 joint seats, 55 oil pipes, 56 oil pipes, 57 supporting frames, 58 supporting tables, 59 pin shafts, 60 pins, 61 pin shafts, 62 square steel pipes, 63 square steel pipes, 64 connecting seats, 65 square steel pipes, 66 backing plates, 67 connecting seats, 68 square steel pipes, 69 square steel pipes, 70 surrounding plates, 71 surrounding plates and 72 plugs

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

A hoisting device for a drilling pump is structurally shown in figures 1-11. The lifting device mainly comprises a base assembly 1, a drilling pump 2, an oil circuit assembly 3, a lifting frame assembly 4, a support frame assembly 5, an oil pipe 6 and an oil pipe 7. The working principle of the hoisting device is shown in fig. 12-18.

The structure of the base assembly is shown in fig. 2, and the base assembly is composed of a main beam 8, a cross beam 9, a sealing plate 10, a fixed beam 11, a traveling beam 12 and a positioner 13, wherein the upper part of the base assembly is used for installing a drilling pump 2 and an oil circuit assembly 3, and the base assembly is connected with a lifting frame assembly 4 through a hoisting hole at the end part of the traveling beam. The main beams, the cross beams, the sealing plates and the fixed beams are fixedly connected to form an integral frame structure, and the floating beam is arranged in the fixed beam and can axially move in the fixed beam so as to adjust the lifting width of the drilling pump. The two side walls of the traveling beam are provided with positioning holes at equal intervals, and the positioning holes are matched with positioning pins on the positioner, so that the axial positioning between the traveling beam and the fixed beam is realized. The end part of the walking beam is provided with a hoisting hole for installing a hoisting frame assembly. The lower side wall of the end part of the walking beam is provided with a positioning hole matched with the upper semicircular boss of the support frame 57, and the positioning hole is used for realizing circumferential positioning between the walking beam and the support frame. The locator is installed at the fixed beam tip, and its inside is provided with the spring for realize the automatic re-setting of locating pin.

The construction of the drilling pump is shown in fig. 3, which is mounted on a base assembly. The lower part of one side of the drilling pump is provided with an oil suction seat 14 and an oil inlet seat 15, and the upper part of the rear side of the drilling pump is provided with an oil return seat 16. The oil suction seat is connected with an oil suction port of the oil pump 19 through an oil pipe and is used for outputting lubricating oil in the drilling pump to the oil pump. The oil inlet seat is connected with an oil outlet of the oil pump through an oil pipe and a change-over switch 21 and is used for conveying high-pressure oil output by the oil pump to the interior of the drilling pump to lubricate parts. The oil return seat is connected with an oil return port of the reversing valve 24 through an oil pipe and is a passage for low-pressure oil in the oil way assembly 3 to flow back to the interior of the drilling pump.

The structure of the oil path assembly is shown in fig. 4, and the oil path assembly is composed of an oil pump 19, a filter 18, a change-over switch 21, a change-over valve 24, a main valve seat 26, a joint seat 31 and each oil pipe assembly, and is installed on a base assembly. The oil circuit assembly is used for sucking oil from the interior of the drill pump and pressurizing the oil by the oil pump to form high-pressure oil, and the high-pressure oil is conveyed to the interior of the drill pump or conveyed to the joint seat 31 through the change-over switch 21.

An oil inlet of the change-over switch is communicated with an oil outlet of the oil pump through an oil pipe 20, one oil outlet of the change-over switch is communicated with an oil inlet seat 15 through an oil pipe 22, the other oil outlet of the change-over switch is communicated with an oil inlet of the reversing valve through an oil pipe 23, the oil outlet of the change-over switch is communicated with the oil inlet seat when a handle of the change-over switch is in a vertical position, and the oil outlet of the change-over switch is communicated with the oil inlet of the.

The reversing valve is provided with four connectors, the two connectors on the left side are respectively connected with the oil pipe 23 and the oil pipe 37, and the two connectors on the right side are respectively connected with the oil pipe 25 and the oil pipe 36. The handle of the reversing valve has three working positions, when the handle is in the middle position, the two left interfaces of the reversing valve are communicated, high-pressure oil entering the reversing valve through the oil pipe 23 flows back to the interior of the drilling pump through the oil pipe 37 and the oil return seat 16, and at the moment, the two right interfaces of the reversing valve are closed. When the reversing valve handle is in the upper position, the reversing valve enables the oil pipe 23 to be communicated with the oil pipe 36 and the oil pipe 25 to be communicated with the oil pipe 37, and when the reversing valve handle is in the lower position, the reversing valve enables the oil pipe 23 to be communicated with the oil pipe 25 and the oil pipe 36 to be communicated with the oil pipe 37.

The main valve seat is structurally shown in fig. 5, an upper oil port and a lower oil port are arranged on the side surface of the main valve seat, an upper row of oil ports and a lower row of oil ports are arranged on the front surface of the main valve seat, the upper row of the four oil ports is communicated with the upper oil port on the side surface, and the lower row of the four oil ports is communicated with the lower oil port on the side surface.

As shown in fig. 4, the joint holder 31 is provided with two oil holes penetrating vertically. The upper and lower oil ports on the side surface of the main valve seat are respectively connected with the reversing valve through an oil pipe 36 and an oil pipe 25, the upper four oil ports on the front surface of the main valve seat are respectively communicated with the upper oil port of the joint seat through an oil pipe 32, an oil pipe 33, an oil pipe 34 and an oil pipe 35, and the lower four oil ports on the front surface of the main valve seat are respectively communicated with the lower oil port of the joint seat through an oil pipe 27, an oil pipe 28, an oil pipe 29 and. The main valve seat is used for distributing high-pressure oil conveyed by the reversing valve to the joint seat and collecting and conveying low-pressure oil on the joint seat to the reversing valve.

The structure of the hoisting frame assembly is shown in fig. 6, and mainly comprises a cross beam 38, an oil cylinder 39, a pin 43, a pin 44, an oil pipe 45 and an oil pipe 46, and the hoisting frame assembly is connected with the travelling beam 12. The lifting frame assembly conveys high-pressure oil output by the oil way assembly to the inside of the oil cylinder, and the oil cylinder provides power for lifting of the drilling pump.

The structure of the beam is shown in fig. 7, and the beam is composed of a rectangular pipe 47, a connecting plate 48, a hoisting plate 49 and an oil distribution seat 50. The connecting plates are arranged at two ends of the rectangular pipe and are used for connecting the oil cylinders. The hoisting plates are symmetrically arranged at the lower part of the middle section of the rectangular pipe and are used for connecting the travelling beam. The upper portion of the middle section of the rectangular pipe is provided with an oil distribution seat, the front face of the oil distribution seat is provided with an upper oil port and a lower oil port, the two side faces of the oil distribution seat are respectively provided with an upper oil port and a lower oil port, the front oil port of the oil distribution seat is communicated with the oil ports on the two side faces of the oil distribution seat, and the front lower oil port of the oil distribution seat is communicated with the lower oil ports on the.

The structure of the oil cylinder is shown in fig. 8, and the oil cylinder is composed of a connecting plate 51, a cylinder 52, a piston rod 53, a joint seat 54, an oil pipe 55 and an oil pipe 56. The piston rod is arranged inside the cylinder barrel and can move axially inside the cylinder barrel. The upper end of the piston rod is provided with a piston, the outer diameter of the piston is matched with the inner diameter of the cylinder barrel, and the lower end of the piston rod is a disc-shaped support used for supporting the oil cylinder. The cylinder is provided with a connecting plate on the outside for connecting the beam 38. The side surface of the joint seat and the upper and lower ends of the joint seat are provided with oil ports, the upper oil port on the side surface is communicated with the upper oil port, the lower oil port on the side surface is communicated with the lower oil port, the upper oil port on the joint seat is communicated with the upper cavity of the oil cylinder through an oil pipe 55, and the lower oil port on the joint seat is communicated with the lower cavity of the oil cylinder through an oil pipe 56.

As shown in fig. 6, the oil cylinders are connected to two ends of the cross beam 38 through bolts 40, nuts 41 and washers 42, the upper oil ports on two sides of the oil distribution base 50 are communicated with the upper oil ports on the side surfaces of the joint bases 54 through oil pipes 45, the lower oil ports on two sides of the oil distribution base are communicated with the lower oil ports on the side surfaces of the joint bases through oil pipes 46, the pin shafts are installed in the pin holes of the hoisting plate, and the pins installed at the end portions of the pin shafts are used for achieving axial positioning of the pin shafts and preventing the pin shafts from slipping off the hoisting plate.

The structure of the support frame assembly is shown in fig. 9, and mainly comprises a support frame 57, a support platform 58, a pin 59, a pin 60 and a pin 61, and the support frame assembly is arranged below the travelling beam in the working process of the lifting device to provide support for the travelling beam and the lifting frame assembly.

The structure of the support frame is as shown in fig. 10, the main body of the support frame is an integral frame structure formed by welding a square steel pipe 62 and a square steel pipe 63, the upper layer of the support frame is provided with a square steel pipe 65 and a base plate 66, the base plate is in contact with the lower side of the walking beam and plays a role in supporting the walking beam, a semicircular boss arranged on the base plate is matched with a positioning hole in the lower side of the walking beam, and circumferential positioning of the walking beam between the support frames is realized. The four corners of the upper layer of the supporting frame are provided with connecting seats 64 for installing the pin shaft 59 and the pin 60. The diagonal direction of support frame upper strata is provided with connecting seat 67 for install round pin axle 61, safety pin 60.

The support base is constructed as a single unit by welding a square steel pipe 68, a square steel pipe 69, a surrounding plate 70, and a surrounding plate 71, as shown in fig. 11. The square steel tube 68 is matched with the inner hole of the square steel tube 62 in the support frame, and the square steel tube 68 is provided with a through positioning hole. The square groove surrounded by the enclosing plates 70 and 71 is matched with the disc-shaped support at the lower end of the piston rod 53, and is used for realizing circumferential positioning of the piston rod relative to the support platform and preventing the piston rod from slipping off the support platform.

As shown in fig. 9, the supporting platforms are installed on both sides of the upper layer of the supporting frame, and the supporting platforms and the supporting frame are positioned by the pin 59 and the pin 60. The support frame and the support frame can be stacked in the vertical direction and are connected into a whole through a pin shaft 61 and a pin 60.

The working principle of the invention is as follows:

the invention relates to a lifting device for a drilling pump, which has the same structure and working principle at each lifting point, and the working principle of the lifting device is illustrated by taking one lifting point as an example.

As shown in fig. 12, when the drill pump needs to be lifted, the handles of the positioners 13 arranged on both sides of the fixed beam 11 are pulled outwards, at this time, the positioning pins are withdrawn from the positioning holes of the walking beam 12, and the axial positioning of the walking beam relative to the fixed beam is released. The movable beam is pulled out to a proper position, the positioner handle is loosened, the positioning pin automatically resets under the action of the spring, and the axial positioning of the movable beam and the fixed beam is realized again. The lifting frame assembly 4 is arranged on the traveling beam through a pin 43 and a pin 44, the upper oil ports of the joint seat 31 and the oil distribution seat 50 are communicated through an oil pipe 6, and the lower oil ports of the joint seat 31 and the oil distribution seat 50 are communicated through an oil pipe 7. The change-over switch 21 is switched to make the handle in a horizontal position, ensuring that high-pressure oil is delivered to the joint seat 31.

As shown in fig. 13, the oil pump 19 is started, and the handle of the direction valve 24 is placed in the upper position. Lubricating oil enters the oil pump through the oil suction seat 14 and the filter 18, high-pressure oil is formed by pressurization in the oil pump and then enters the reversing valve through the change-over switch 21 and the oil pipe 23, the high-pressure oil flows out from an upper oil port on the right side of the reversing valve due to the fact that a handle of the reversing valve is located at the upper position, the high-pressure oil enters an upper oil chamber of the oil cylinder through an oil pipe 36, an upper oil outlet of a main valve seat 26, an upper oil outlet of a connector seat 31, an oil pipe 6, an upper oil outlet of an oil distribution seat 50, an oil pipe 45, an upper oil outlet of a connector seat 54 and an oil pipe 55, the high-pressure oil in the upper oil chamber pushes a piston rod 53 to move downwards until a support at the. After the oil cylinder reaches the maximum stroke, the handle of the reversing valve is placed in the middle position, an oil path between the reversing valve and the oil cylinder is in a closed state, the oil cylinder is kept at the maximum stroke, and at the moment, high-pressure oil entering the reversing valve through the oil pipe 23 flows back to the interior of the drilling pump through the oil pipe 37. Finally, the support frame 57 is placed below the walking beam, so that the semicircular boss on the upper portion of the support frame is aligned with the positioning hole on the lower side of the walking beam.

As shown in fig. 14, the handle of the directional control valve 24 is set to the lower position, the high-pressure oil entering the directional control valve 24 through the oil pipe 23 flows out from the lower oil port on the right side of the directional control valve, passes through the oil pipe 25, the lower oil port of the main valve seat 26, the lower oil port of the joint seat 31, the oil pipe 7 and the lower oil port of the oil distributing seat 50, the oil pipe 46, the lower oil port of the joint seat 54 and the oil pipe 56 enter the lower cavity of the oil cylinder, high-pressure oil in the lower cavity of the oil cylinder pushes the piston rod 53 to move upwards, the stroke of the oil cylinder is gradually reduced, the cylinder barrel 52 drives the cross beam 38 and the walking beam 12 to fall together until the lower side of the walking beam is in contact with a base plate on the upper portion of the support frame 57, the walking beam is completely supported by the support frame at the moment, a semicircular boss on the base plate is matched with a positioning hole in the lower side of the walking beam, circumferential positioning between the walking beam and the support frame is achieved, the walking beam is prevented from slipping from the support frame, at. After the stroke of the oil cylinder is reduced to zero, the handle of the reversing valve is arranged at the middle position, an oil path between the reversing valve and the oil cylinder is in a closed state, and the oil cylinder is kept at the zero stroke position. In the upward movement process of the piston rod, the lubricating oil in the upper cavity of the oil cylinder is extruded by the piston at the upper end of the piston rod and flows back to the drilling pump through an oil pipe 55, an oil feeding port of the joint seat 54, an oil pipe 45, an oil feeding port of the oil distribution seat 50, an oil pipe 6, an oil feeding port of the joint seat 31, an oil feeding port of the main valve seat 26, an oil pipe 36, an oil feeding port on the right side of the reversing valve 24, an oil feeding port on the left side. Finally, the supporting tables 58 are arranged on two sides of the supporting frame, and the supporting tables and the supporting frame are positioned through the pin shafts 59 and the pins 60, so that the supporting tables are prevented from slipping off the supporting frame.

As shown in fig. 15, the handle of the reversing valve 24 is placed at the upper position, high-pressure oil flows out from the upper oil port on the right side of the reversing valve and finally enters the upper oil cylinder cavity, the high-pressure oil in the upper oil cylinder cavity pushes the piston rod 53 to move downwards until the support at the lower end of the piston rod contacts the support platform 58, the support platform serves as a basis for providing a support platform for the oil cylinder, the high-pressure oil continues to enter the upper oil cylinder cavity, and the cylinder 52 drives the beam 38 and the walking beam 12 to move upwards together until the. After the oil cylinder reaches the maximum stroke, the handle of the reversing valve is arranged at the middle position, an oil path between the reversing valve and the oil cylinder is in a closed state, and the oil cylinder is kept at the maximum stroke position. In the process that the piston rod moves downwards, lubricating oil in the lower cavity of the oil cylinder is extruded by the piston and flows back to the drilling pump through an oil pipe 56, a lower oil port of the joint seat 54, an oil pipe 46, a lower oil port of the oil distribution seat 50, an oil pipe 7, a lower oil port of the joint seat 31, a lower oil port of the main valve seat 26, an oil pipe 25, a lower oil port on the right side of the reversing valve 24, an upper oil port on the left side of the reversing valve 24 and an oil. The new support frame 57 is stacked on the lower support frame 57, and the upper support frame and the lower support frame are connected into a whole through the pin 61 and the pin 60.

As shown in fig. 16, the handle of the reversing valve 24 is placed at the lower position, the working principle of the device is the same as that shown in fig. 14, the stroke of the piston rod 53 is gradually reduced to zero, the floating beam 12 is completely supported by the support frame 57, the handle of the reversing valve is placed at the middle position after the stroke of the oil cylinder is reduced to zero, and the oil cylinder is kept at the zero stroke position. The support stand 58 is removed and reinstalled on both sides of the upper support stand.

As shown in fig. 17, the handle of the reversing valve 24 is again placed at the upper position, the piston rod 53 moves downwards, and the oil cylinder takes the support platform 58 as a support, so that the cross beam 38 and the walking beam 12 are driven to move upwards together until the oil cylinder reaches the maximum stroke. After the oil cylinder reaches the maximum stroke, the handle of the reversing valve is arranged at the middle position, and the oil cylinder is kept at the maximum stroke position. At this point, the height of the lower plane of the borehole pump foundation assembly 1 from the ground exceeds the floor height of the carrier vehicle, and the carrier vehicle is dumped into position in the lower portion of the borehole pump.

As shown in figure 18, the handle of the reversing valve 24 is placed at the lower position, and the stroke of the oil cylinder is gradually reduced until the lower plane of the base assembly 1 is contacted with the bottom plate of the transport vehicle, and the well drilling pump stably falls on the bottom plate of the transport vehicle. At this time, the oil pipe 6, the oil pipe 7, the lifting frame assembly 4 and the support frame assembly 5 are removed, the positioner 13 is operated to enable the movable beam 12 to be retracted into the fixed beam 11, finally, the positioner is used to complete the positioning between the movable beam and the fixed beam, the oil port of the joint seat 31 is blocked by the plug 72, and the change-over switch 21 is switched to enable the handle to be in the vertical position. This completes the task of loading the drill pump onto the transport vehicle.

The unloading process of the drilling pump from the transport vehicle is opposite to the loading process of the drilling pump on the transport vehicle, only the hoisting frame assembly and the support frame assembly need to be connected, the hoisting height of the drilling pump exceeds the height of the bottom plate of the transport vehicle, at the moment, the transport vehicle is driven out, and then the ground clearance of the drilling pump is reduced to zero by reducing the support frame.

Claims (10)

1. The utility model provides a lifting device for drilling pump which characterized in that, includes base assembly (1), and base assembly (1) upper portion is provided with drilling pump (2) and oil circuit assembly (3), and base assembly (1) is connected with hoisting frame assembly (4) through the hole for hoist of walking roof beam (12) tip, and walking roof beam (12) below is provided with support frame assembly (5).

2. The hoisting device for the drilling pump of claim 1, wherein the base assembly (1) comprises a main beam (8), the main beam (8) is provided with a cross beam (9) perpendicular to the main beam in the middle, the sealing plates (10) are arranged at two ends of the main beam (8), the fixed beams (11) are arranged at two sides of the cross beam (9), the main beam (8), the cross beam (9), the sealing plates (10) and the fixed beams (11) are fixedly connected into an integral frame structure, the movable beam (12) is arranged in the fixed beam (11) and can move axially in the fixed beam (11), positioning holes are arranged on two side walls of the movable beam (12) at equal intervals, hoisting holes are arranged at the end part of the movable beam (12), the movable beam lifting mechanism is used for mounting a lifting frame assembly (4), and a positioning hole matched with the semicircular boss on the support frame (57) is formed in the lower side wall of the end part of the movable beam (12).

3. The hoisting device for the drilling pump as recited in claim 1, wherein the drilling pump (2) is provided with an oil suction seat (14) and an oil inlet seat (15) at the lower part, the oil return seat (16) is arranged at the position higher than the oil suction seat (14) at the rear side of the drilling pump (2), and the oil suction seat (14) is connected with an oil suction port of the oil pump (19) through an oil pipe for outputting the lubricating oil inside the drilling pump to the oil pump. The oil inlet seat (15) is connected with an oil outlet of an oil pump (19) through an oil pipe and a change-over switch (21), and the oil return seat (16) is connected with an oil return port of a reversing valve (24) through an oil pipe.

4. The hoisting device for the drilling pump as claimed in claim 1, wherein the oil circuit assembly (4) comprises an oil pump (19), an oil outlet of the oil pump (19) is connected with an oil inlet of a change-over switch (21) through an oil pipe, one oil outlet of the change-over switch (21) is communicated with the oil inlet seat (15) through an oil pipe (22), the other oil outlet is communicated with an oil inlet of a reversing valve (24) through an oil pipe (23), the oil outlet of the change-over switch (21) is communicated with the oil inlet seat (15) when the handle of the change-over switch is in a vertical position, and the oil outlet of the change-over switch is communicated with the oil inlet of the reversing valve (24) when the handle of.

5. A hoisting device for a drilling pump according to claim 4, wherein the oil outlet of the reversing valve (24) is connected to the main valve seat (26) via an oil pipe (25), an oil pipe (36); the side surface of the main valve seat (26) is provided with an upper oil port and a lower oil port, the front surface of the main valve seat is provided with an upper oil port and a lower oil port, the upper oil port and the lower oil port are communicated with the upper oil port on the side surface, and the lower oil port are communicated. The function of dividing one path of oil flow into multiple paths and converging the multiple paths of oil flow into one path is realized; the upper oil port and the lower oil port on the side surface of the main valve seat (26) are respectively connected with the reversing valve through an oil pipe (36) and an oil pipe (25), the four oil ports on the front side of the main valve seat are respectively communicated with the upper oil port of the joint seat (31) through an oil pipe (32), an oil pipe (33), an oil pipe (34) and an oil pipe (35), and the four oil ports on the front side of the main valve seat (26) are respectively communicated with the lower oil port of the joint seat (31) through an oil pipe (27), an oil pipe (28), an oil pipe (29) and.

6. The oil circuit assembly according to claim 3, characterized in that the lifting frame assembly (4) comprises a cross beam (38), oil cylinders (39) are arranged on two sides of the cross beam (38), the two oil cylinders (39) are connected with each other through an oil pipe (45) and an oil pipe (46), and the lifting frame assembly (4) is connected with the floating beam (12) through a pin shaft (43) and a pin (44); the lifting frame assembly (4) conveys high-pressure oil output by the oil circuit assembly (3) to the inside of the oil cylinder (39), and the oil cylinder provides power for lifting of the drilling pump (2).

7. The oil circuit assembly according to claim 6, characterized in that the cross beam (38) comprises a rectangular tube (47), and connecting plates (48) are arranged at two ends of the rectangular tube (47) and used for connecting the oil cylinders (39). The rectangular pipe middle section lower part symmetry is provided with the hoist and mount board for connect trip roof beam (12), and rectangular pipe (47) middle section upper portion is provided with branch oil seat (50), divides oil seat (50) openly to be provided with two upper and lower hydraulic fluid ports, and the both sides face all is provided with upper and lower hydraulic fluid port, divides the positive oil port that oils of oil seat and the oil port intercommunication that oils of its both sides face, divides the positive hydraulic fluid port that oils seat (50) down and the lower hydraulic fluid port intercommunication of its both sides face.

8. The oil circuit assembly of claim 6, wherein the oil cylinder (39) comprises a piston rod (53) and the piston rod is mounted inside the cylinder (52) and can move axially inside the cylinder, a piston is arranged at the upper end of the piston rod (53) and has an outer diameter matched with the inner diameter of the cylinder, a disc-shaped support is arranged at the lower end of the piston rod (53) and is used for supporting the oil cylinder, and a connecting plate (51) is arranged outside the cylinder and is used for connecting the cross beam (38). The oil port on the joint seat is communicated with the upper cavity of the oil cylinder through an oil pipe (55), the oil port under the joint seat is communicated with the lower cavity of the oil cylinder through an oil pipe (56), the oil ports on the two sides of the oil distribution seat (50) are communicated with the oil port on the side surface of the joint seat (54) through an oil pipe (45), and the oil ports on the two sides of the oil distribution seat are communicated with the oil port on the side surface of the joint seat through an oil pipe (46).

9. The hoisting device for the drilling pump according to claim 1, wherein the support frame assembly (6) comprises a support frame (57), the support frame (57) comprises an integral frame structure formed by welding a square steel pipe (62) and a square steel pipe (63), the square steel pipe (65) and a base plate (66) are arranged on the upper layer of the support frame (57), the base plate (66) is in contact with the lower side of the traveling beam (12), a semicircular boss arranged on the base plate (66) is matched with a positioning hole on the lower side of the traveling beam, and connecting seats (64) are arranged at four corners of the upper layer of the support frame (57) and used for installing a pin shaft (59) and a pin (60); supporting tables (58) are arranged on two sides of the middle part of the supporting frame (57).

10. The hoisting device for the drilling pump as claimed in claim 1, wherein the support platform (58) comprises a square steel tube (68), the square steel tube (68) is matched with an inner hole of the square steel tube (62) in the support frame (57), and the square steel tube (68) is provided with a through positioning hole. The square groove surrounded by the enclosing plate (70) and the enclosing plate (71) is matched with the disc-shaped support at the lower end of the piston rod (53) and used for realizing circumferential positioning of the piston rod relative to the support platform (58), the support platform (58) is arranged on two sides of the upper layer of the support frame, and the support platform and the support frame (57) are positioned through a pin shaft (59) and a pin (60). The adjacent support frames (57) can be stacked in the vertical direction and are connected with the pin (60) into a whole through the pin shaft (61).

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