Radial plunger hydraulic pump for oilfield pumping unit

Abstract

The utility model relates to oil extraction pumping unit technical field discloses a radial plunger hydraulic pump for oilfield oil extraction pumping unit, including the chassis disc, the outer wall top end all fixedly connected with the U shaped support in all directions of chassis disc, the adjacent side top of multiple U shaped supports all are fixedly connected with the fixed disc, the top department rotationally connected with the pivot of chassis disc, the outer wall middle part of pivot is provided with multiple sets of linkage mechanism, and the inner wall of front side U shaped support is provided with cooling mechanism, and cooling mechanism is used for heat dissipation to piston, and the outer wall left side of multiple sets of linkage mechanism is provided with the discharge assembly. In the utility model, through the starting of DC motor, drive gear and linkage gear rotation are driven, make the inclined cylinder rotate with the axle, push the slide cap to move, and the slide cap moves the piston in the piston cylinder through the piston rod and drives the piston, makes the piston complete reciprocating motion in the piston cylinder, thereby guarantees the stability of oil pressure.

Description

Technical Field

[0001] This utility model relates to the field of oil pumping machine technology, and in particular to a radial plunger hydraulic pump for oilfield pumping machines. Background Technology

[0002] Radial plunger hydraulic pumps for oilfield pumping units are core power equipment in oil extraction operations. They use plungers to reciprocate linearly within a cylinder, periodically changing the volume of the working chamber to draw in and discharge crude oil from underground, thus transporting crude oil from deep underground formations to the surface. With its efficient volumetric working principle, good sealing performance, and high pressure output capacity, this equipment plays a key role in enhancing crude oil recovery in oilfield extraction and is widely used in various oil reservoir extraction scenarios.

[0003] Early radial plunger hydraulic pumps mainly consisted of a simple plunger, cylinder, and drive mechanism. Due to their relatively crude structural design, they exhibited significant vibration during operation, leading to severe pressure fluctuations and seriously affecting oil production efficiency and equipment stability. To address this issue, existing radial plunger hydraulic pumps employ flexible connection components and composite damping bases. The flexible connection components are installed between the drive system and the plunger, absorbing some of the impact force during transmission through elastic elements, thus reducing the transmission of mechanical vibration. The composite damping base, composed of multi-layer damping materials and a spring structure, effectively isolates vibration transmission between the pump body and the foundation. However, existing radial plunger hydraulic pumps still cannot completely eliminate vibration during operation. In actual operation, complex conditions such as changes in crude oil viscosity and well pressure fluctuations cause nonlinear changes in the plunger load. These instantaneous force changes lead to alterations in vibration frequency and amplitude. Over long-term operation, the performance of flexible components and damping materials degrades, weakening the damping effect. This allows vibration to be transmitted through the pump body structure to the working chamber, causing unstable oil pressure fluctuations and consequently affecting the continuity and stability of crude oil transportation. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a radial plunger hydraulic pump for oilfield pumping units, aiming to improve the problem in the prior art where complex working conditions cause nonlinear changes in plunger load, resulting in unstable oil pressure fluctuations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a radial plunger hydraulic pump for an oilfield pumping unit, comprising a base plate, U-shaped supports fixedly connected to the top four sides of the outer wall of the base plate, a fixed plate fixedly connected to the top of each adjacent side of the multiple U-shaped supports, a rotating shaft rotatably connected to the top center of the base plate, multiple sets of linkage mechanisms provided in the middle of the outer wall of the rotating shaft, a cooling mechanism provided on the inner wall of the front U-shaped supports for dissipating heat from the piston, a discharge assembly provided on the left side of the outer wall of the multiple sets of linkage mechanisms, a feeding assembly provided at the bottom of the base plate for extracting raw materials, and a neutralization assembly provided at the top of the fixed plate;

[0006] The multiple linkage mechanisms include an inclined cylinder, the inner wall of which is fixedly connected to the middle of the outer wall of the rotating shaft. Multiple piston cylinders are fixedly connected to the top of the base plate. A piston rod is slidably connected to the inner wall of the piston cylinder. The top end of the piston rod passes through the top end of the piston cylinder and is fixedly connected to a sliding cap. A return spring is fixedly connected to the top end of the piston cylinder. An auxiliary component is provided on the outer wall of the piston rod. An inlet / outlet component is provided on the inner wall of the multiple U-shaped brackets. The inlet / outlet component is used to gather and disperse the entire pipeline. A drive component is provided on the top left side of the fixed plate.

[0007] As a further description of the above technical solution:

[0008] The cooling mechanism includes a cold water inlet pipe, the outer wall of which is fixedly connected to the upper middle part of the inner wall of the front U-shaped bracket. The rear end of the cold water inlet pipe is connected to a diversion ring pipe, the outer wall of which is connected to multiple connecting pipes. The other end of each connecting pipe is connected to a heat exchange cylinder. Each adjacent side of the multiple heat exchange cylinders is connected to a collection ring pipe, and the outer wall of the collection ring pipe is connected to a hot water outlet pipe.

[0009] As a further description of the above technical solution:

[0010] The auxiliary component includes multiple sealing rings, the inner walls of which are fixedly connected to the outer wall of the piston rod, and a ball is rotatably connected to the top of the inner wall of the sliding cap.

[0011] As a further description of the above technical solution:

[0012] The inlet / outlet assembly includes a collection ring tube, the outer wall of which is fixedly connected to the inner wall of the plurality of U-shaped supports. The inner wall of the collection ring tube is connected to a plurality of one-way outlet valves. The outer walls of the plurality of piston cylinders are connected to a plurality of one-way inlet valves on adjacent sides. The adjacent ends of the plurality of one-way inlet valves are connected to a dispersing ring tube.

[0013] As a further description of the above technical solution:

[0014] The drive assembly includes a DC motor, the bottom end of which is fixedly connected to the top left side of the fixed disk. The output end of the DC motor passes through the top of the fixed disk and is fixedly connected to a drive gear. The outer wall of the drive gear is meshed with a linkage gear, and the inner wall of the linkage gear is fixedly connected to the top of the outer wall of the rotating shaft.

[0015] As a further description of the above technical solution:

[0016] The discharge assembly includes a discharge pipe, the right end of which is connected to the left side of the collection ring pipe. A pipe valve is fixedly connected to the outer wall of the discharge pipe, and a flange is fixedly connected to the left end of the discharge pipe.

[0017] As a further description of the above technical solution:

[0018] The bottom end of the dispersion ring pipe is connected to a feed pipe, and the bottom end of the outer wall of the feed pipe passes through the top end of the base plate and is fixedly connected to a valve.

[0019] As a further description of the above technical solution:

[0020] The neutralizing component includes a counterweight arc-shaped block, the bottom end of which passes through the top end of the fixed disk and is fixedly connected to the top end of the rotating shaft. A hollow protective cylinder is fixedly connected to the middle of the top end of the fixed disk.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, a DC motor is started, which drives the drive gear to rotate, causing the linkage gear to rotate, which in turn drives the rotating shaft to rotate synchronously. The inclined cylinder rotates with the shaft, pushing the sliding cap to move. The sliding cap drives the piston to move inside the piston cylinder through the piston rod. The return spring is compressed. When the inclined surface of the inclined cylinder passes under the sliding cap, the return spring releases its elastic potential energy, pushing the piston rod and the sliding cap to return downward, so that the piston completes one reciprocating motion inside the piston cylinder, thereby ensuring the stability of the oil pressure.

[0023] 2. In this utility model, external cold water flows in from the cold water inlet pipe, is divided into each connecting pipe by the diversion ring pipe, and then enters the heat exchange cylinder. Since the heat exchange cylinder is wrapped around the outside of the piston cylinder, the cold water absorbs the heat generated by the reciprocating motion of the piston rod through heat exchange. The heated water is discharged through the collecting ring pipe and the hot water outlet pipe, thereby achieving heat dissipation and cooling of the piston rod. Attached Figure Description

[0024] Figure 1 This is a perspective view of a radial plunger hydraulic pump for an oilfield pumping unit proposed in this utility model;

[0025] Figure 2 This is a front view of a radial plunger hydraulic pump for an oilfield pumping unit proposed in this utility model;

[0026] Figure 3 This is a side view of a radial plunger hydraulic pump for an oilfield pumping unit proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the base plate of a radial plunger hydraulic pump for an oilfield pumping unit proposed in this utility model;

[0028] Figure 5 This is a cross-sectional view of the piston cylinder of a radial plunger hydraulic pump for an oilfield pumping unit, as proposed in this utility model.

[0029] Legend:

[0030] 1. Base frame; 2. Multiple linkage mechanisms; 201. Inclined cylinder; 202. Piston cylinder; 203. Piston rod; 204. Sliding cap; 205. Return spring; 206. Auxiliary components; 2061. Sealing ring; 2062. Ball bearing; 207. Inlet / outlet assembly; 2071. One-way outlet valve; 2072. One-way inlet valve; 2073. Collection ring pipe; 2074. Dispersion ring pipe; 208. Drive assembly; 2081. DC motor; 2082. Drive gear; 2083. 1. Linkage gear; 3. Cooling mechanism; 301. Cold water inlet pipe; 302. Diversion ring pipe; 303. Connecting pipe; 304. Heat exchange cylinder; 305. Gathering ring pipe; 306. Hot water outlet pipe; 4. U-shaped bracket; 5. Fixed plate; 6. Rotating shaft; 7. Discharge assembly; 701. Discharge pipe; 702. Pipeline valve; 703. Flange; 8. Feed assembly; 801. Feed pipe; 802. Valve; 9. Neutralization assembly; 901. Counterweight arc block; 902. Hollow protective cylinder. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 4 and Figure 5An embodiment of this utility model provides a radial plunger hydraulic pump for an oilfield pumping unit, comprising a base plate 1, with U-shaped supports 4 fixedly connected to the top of the outer wall of the base plate 1, and fixed plates 5 fixedly connected to the top of adjacent sides of multiple U-shaped supports 4, a rotating shaft 6 rotatably connected to the top center of the base plate 1, multiple sets of linkage mechanisms 2 provided in the middle of the outer wall of the rotating shaft 6, a cooling mechanism 3 provided in the inner wall of the front U-shaped supports 4 for dissipating heat from the piston rod 203, a discharge assembly 7 provided on the left side of the outer wall of the multiple sets of linkage mechanisms 2, a feeding assembly 8 provided at the bottom of the base plate 1 for extracting raw materials, and a neutralization assembly 9 provided at the top of the fixed plates 5;

[0033] The multi-linkage mechanism 2 includes an inclined cylinder 201. The inner wall of the inclined cylinder 201 is fixedly connected to the middle of the outer wall of the rotating shaft 6. Multiple piston cylinders 202 are fixedly connected to the top of the base plate 1. A piston rod 203 is slidably connected to the inner wall of the piston cylinder 202. The top end of the piston rod 203 passes through the top end of the piston cylinder 202 and is fixedly connected to a sliding cap 204. A return spring 205 is fixedly connected to the top end of the piston cylinder 202. The inclined cylinder 201 rotates with the shaft, and its inclined surface pushes the sliding cap 204 to move. At this time, the sliding cap 204 drives the piston rod 203 to move inside the piston cylinder 202 through the piston rod 203. At this time, the return spring 205 is released. When the inclined surface of the inclined cylinder 201 rotates past the bottom of the sliding cap 204, the return spring 205 releases its elastic potential energy, pushing the piston rod 203 and the sliding cap 204 to return downwards, so that the piston rod 203 completes one reciprocating motion in the piston cylinder 202. The outer wall of the piston rod 203 is provided with an auxiliary component 206, and the inner wall of the multiple U-shaped brackets 4 is provided with an inlet and outlet component 207. The inlet and outlet component 207 is used to gather and disperse the entire pipeline. The dispersing ring pipe 2074 and the collecting ring pipe 2073 of the inlet and outlet component 207 realize the gathering and dispersion of the pipeline. The top left side of the fixed disk 5 is provided with a drive component 208.

[0034] The auxiliary component 206 includes multiple sealing rings 2061, the inner walls of which are fixedly connected to the outer wall of the piston rod 203. A ball bearing 2062 is rotatably connected to the top of the inner wall of the sliding cap 204. The inlet / outlet component 207 includes a collecting ring pipe 2073, the outer wall of which is fixedly connected to the inner walls of multiple U-shaped supports 4. Multiple one-way outlet valves 2071 are connected to the inner wall of the collecting ring pipe 2073. Multiple one-way inlet valves 2072 are connected to adjacent sides of the outer walls of multiple piston cylinders 202. A dispersing ring pipe is connected to adjacent ends of multiple one-way inlet valves 2072. 2074; The drive assembly 208 includes a DC motor 2081. The bottom end of the DC motor 2081 is fixedly connected to the top left side of the fixed disk 5. The output end of the DC motor 2081 passes through the top end of the fixed disk 5 and is fixedly connected to a drive gear 2082. The outer wall of the drive gear 2082 is meshed with a linkage gear 2083. The inner wall of the linkage gear 2083 is fixedly connected to the top of the outer wall of the rotating shaft 6. After the DC motor 2081 is started, its output end drives the drive gear 2082 to rotate. Through meshing transmission, the linkage gear 2083 rotates, thereby driving the rotating shaft 6 to rotate synchronously.

[0035] Specifically, after the DC motor 2081 starts, its output end drives the drive gear 2082 to rotate, which in turn drives the linkage gear 2083 to rotate through meshing transmission, thereby driving the rotating shaft 6 to rotate synchronously. At this time, the inclined cylinder 201 rotates with the shaft, and its inclined surface pushes the sliding cap 204 to move. At this time, the sliding cap 204 drives the piston rod 203 to move inside the piston cylinder 202 through the piston rod 203. At this time, the return spring 205 is compressed. When the inclined surface of the inclined cylinder 201 passes under the sliding cap 204, the return spring 205 releases its elastic potential energy, pushing the piston rod 203 and the sliding cap 204 to return downward, so that the piston rod 203 completes one reciprocating motion inside the piston cylinder 202. The rolling ball 2062 on the inner wall of 204 reduces friction with the inclined cylinder 201, while the sealing ring 2061 on the outer wall of the piston rod 203 prevents hydraulic oil leakage. When the piston rod 203 moves upward, a negative pressure is formed inside the piston cylinder 202, and the raw material is drawn through the feeding assembly 8, enters the one-way valve 2072 through the dispersion ring pipe 2074, and then flows into each piston cylinder 202 respectively. When the piston rod 203 moves downward, the raw material in the piston cylinder 202 is squeezed, pushes open the one-way valve 2071, and is collected through the collection ring pipe 2073 to the discharge assembly 7 to complete the discharge. The dispersion ring pipe 2074 and the collection ring pipe 2073 of the inlet and outlet assembly 207 realize the aggregation and dispersion of the pipeline, ensuring smooth feeding and discharging.

[0036] Reference Figure 2 , Figure 3 and Figure 4The cooling mechanism 3 includes a cold water inlet pipe 301, through which cold water from the outside flows in. The outer wall of the cold water inlet pipe 301 is fixedly connected to the upper part of the inner wall of the front U-shaped bracket 4. The rear end of the cold water inlet pipe 301 is connected to a diversion ring pipe 302. The outer wall of the diversion ring pipe 302 is connected to multiple connecting pipes 303. The water is diverted to each connecting pipe 303 through the diversion ring pipe 302. The other end of the connecting pipe 303 is connected to a heat exchange cylinder 304. The water then enters the heat exchange cylinder 304. The heat exchange cylinder 304 is wrapped around the outside of the piston cylinder 202. It absorbs the heat generated by the reciprocating motion of the piston rod 203 through heat exchange. Each adjacent side of the multiple heat exchange cylinders 304 is connected to a collection ring pipe 305. The outer wall of the collection ring pipe 305 is connected to a hot water outlet pipe 306. The heated water is discharged through the collection ring pipe 305 and the hot water outlet pipe 306.

[0037] Specifically, cold water from the outside flows in through the cold water inlet pipe 301, is diverted through the diversion ring pipe 302 to each connecting pipe 303, and then enters the heat exchange cylinder 304. The heat exchange cylinder 304 is wrapped around the outside of the piston cylinder 202 and absorbs the heat generated by the reciprocating motion of the piston rod 203 through heat exchange. The heated water is discharged through the collecting ring pipe 305 and the hot water outlet pipe 306, thereby achieving heat dissipation and cooling of the piston rod 203.

[0038] Reference Figure 1 , Figure 2 and Figure 3 The discharge assembly 7 includes a discharge pipe 701, the right end of which is connected to the left side of the collecting ring pipe 2073. A pipe valve 702 is fixedly connected to the outer wall of the discharge pipe 701, and a flange 703 is fixedly connected to the left end of the discharge pipe 701. When the piston rod 203 moves down, the raw material in the piston cylinder 202 is squeezed, pushing open the one-way valve 2071, and collecting through the collecting ring pipe 2073 to the discharge pipe 701. At this time, the pipe valve 702 is in the open state, and the raw material is connected to the external oil pipeline through the flange 703 at the left end of the discharge pipe 701 to complete the discharge. The bottom end of the dispersing ring pipe 2074 is connected to the feed pipe 801. The bottom of the outer wall penetrates the top of the base plate 1 and is fixedly connected to a valve 802. The raw material flows into the dispersion ring pipe 2074 through the feed pipe 801, and then enters each piston cylinder 202 through the one-way valve 2072. The neutralization component 9 includes a counterweight arc block 901. The bottom of the counterweight arc block 901 penetrates the top of the fixed plate 5 and is fixedly connected to the top of the rotating shaft 6. The counterweight arc block 901 rotates synchronously with the rotating shaft 6, and uses centrifugal force to counteract the eccentricity of the inclined cylinder 201, thereby ensuring the smooth rotation of the inclined cylinder 201. A hollow protective cylinder 902 is fixedly connected to the middle of the top of the fixed plate 5 to prevent injury to the staff during operation.

[0039] Specifically, when the piston rod 203 moves downward, the raw material in the piston cylinder 202 is squeezed, pushing open the one-way valve 2071, and is collected through the collection ring pipe 2073 to the discharge pipe 701. At this time, the pipeline valve 702 is in the open state, and the raw material is connected to the external oil pipeline through the flange 703 at the left end of the discharge pipe 701 to complete the discharge. The raw material flows into the dispersion ring pipe 2074 through the feed pipe 801, and then enters each piston cylinder 202 through the one-way valve 2072. The counterweight arc block 901 rotates synchronously with the rotating shaft 6, and uses centrifugal force to counteract the eccentricity of the inclined cylinder 201, thereby ensuring the smooth rotation of the inclined cylinder 201. The hollow protective cylinder 902 is covered on the outside of the counterweight arc block 901 to prevent injury to the staff during operation, and at the same time provide structural protection.

[0040] Working principle: First, after the DC motor 2081 starts, its output end drives the drive gear 2082 to rotate. Through meshing transmission, the linkage gear 2083 rotates, which in turn drives the rotating shaft 6 to rotate synchronously. At this time, the inclined cylinder 201 rotates with the shaft, and its inclined surface pushes the sliding cap 204 to move. The sliding cap 204 drives the piston rod 203 to move inside the piston cylinder 202 through the piston rod 203. During this process, the return spring 205 is compressed. When the inclined surface of the inclined cylinder 201 passes below the sliding cap 204, the return spring 205 releases its elastic potential energy, pushing the piston rod 203 and the sliding cap 204 to return downward, so that the piston rod 203 completes one reciprocating motion inside the piston cylinder 202. The ball bearing 2062 on the inner wall of the cap 204 reduces friction with the inclined cylinder 201, while the sealing ring 2061 on the outer wall of the piston rod 203 prevents hydraulic oil leakage. When the piston rod 203 moves upward, a negative pressure is formed inside the piston cylinder 202. The raw material is drawn through the feeding assembly 8, enters the one-way valve 2072 through the dispersion ring pipe 2074, and then flows into each piston cylinder 202. When the piston rod 203 moves downward, the raw material inside the piston cylinder 202 is squeezed, pushing open the one-way valve 2071, and is collected through the collection ring pipe 2073 to the discharge assembly 7 to complete the discharge. The dispersion ring pipe 2074 and the collection ring pipe 2073 of the inlet and outlet assembly 207 realize the aggregation and dispersion of the pipeline, ensuring a smooth feeding and discharging process.

[0041] Furthermore, through the cooling mechanism 3, external cold water flows in from the cold water inlet pipe 301, is diverted through the diversion ring pipe 302 to each connecting pipe 303, and then enters the heat exchange cylinder 304. The heat exchange cylinder 304 is wrapped around the outside of the piston cylinder 202, and absorbs the heat generated by the reciprocating motion of the piston rod 203 through heat exchange. The heated water is discharged through the collecting ring pipe 305 and the hot water outlet pipe 306, thereby achieving heat dissipation and cooling of the piston rod 203.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A radial plunger hydraulic pump for oilfield pumping units, comprising a base plate (1), characterized in that: The top of the outer wall of the base plate (1) is fixedly connected to U-shaped brackets (4) around the perimeter. The top of each adjacent side of the multiple U-shaped brackets (4) is fixedly connected to a fixed plate (5). The top center of the base plate (1) is rotatably connected to a rotating shaft (6). The middle of the outer wall of the rotating shaft (6) is provided with multiple sets of linkage mechanisms (2). The inner wall of the front U-shaped bracket (4) is provided with a cooling mechanism (3). The cooling mechanism (3) is used to dissipate heat from the piston. The left side of the outer wall of the multiple sets of linkage mechanisms (2) is provided with a discharge assembly (7). The bottom end of the base plate (1) is provided with a feeding assembly (8). The feeding assembly (8) is used to extract raw materials. The top of the fixed plate (5) is provided with a neutralization assembly (9). The multiple linkage mechanism (2) includes an inclined cylinder (201), the inner wall of which is fixedly connected to the middle of the outer wall of the rotating shaft (6). Multiple piston cylinders (202) are fixedly connected around the top of the base plate (1). A piston rod (203) is slidably connected to the inner wall of the piston cylinder (202). The top end of the piston rod (203) passes through the top end of the piston cylinder (202) and is fixedly connected to a sliding cap (204). A return spring (205) is fixedly connected to the top end of the piston cylinder (202). An auxiliary component (206) is provided on the outer wall of the piston rod (203). An inlet / outlet component (207) is provided on the inner wall of the multiple U-shaped brackets (4). The inlet / outlet component (207) is used to gather and disperse the entire pipeline. A drive component (208) is provided on the top left side of the fixed plate (5).

2. The radial plunger hydraulic pump for oilfield pumping units according to claim 1, characterized in that: The cooling mechanism (3) includes a cold water inlet pipe (301), the outer wall of which is fixedly connected to the upper part of the inner wall of the front U-shaped bracket (4), the rear end of which is connected to a diversion ring pipe (302), the outer wall of which is connected to multiple connecting pipes (303), the other end of which is connected to a heat exchange cylinder (304), and the adjacent sides of the multiple heat exchange cylinders (304) are connected to a gathering ring pipe (305), the outer wall of which is connected to a hot water outlet pipe (306).

3. The radial plunger hydraulic pump for oilfield pumping units according to claim 1, characterized in that: The auxiliary component (206) includes a plurality of sealing rings (2061), the inner walls of which are fixedly connected to the outer wall of the piston rod (203), and a ball (2062) is rotatably connected to the top of the inner wall of the sliding cap (204).

4. The radial plunger hydraulic pump for oilfield pumping units according to claim 1, characterized in that: The inlet / outlet assembly (207) includes a collection ring pipe (2073), the outer wall of which is fixedly connected to the inner wall of the plurality of U-shaped supports (4), the inner wall of which is connected to a plurality of one-way outlet valves (2071), the outer walls of the plurality of piston cylinders (202) are connected to a plurality of one-way inlet valves (2072) on adjacent sides, and the adjacent ends of the plurality of one-way inlet valves (2072) are connected to a dispersing ring pipe (2074).

5. A radial plunger hydraulic pump for oilfield pumping units according to claim 1, characterized in that: The drive assembly (208) includes a DC motor (2081), the bottom end of which is fixedly connected to the top left side of the fixed disk (5). The output end of the DC motor (2081) passes through the top of the fixed disk (5) and is fixedly connected to a drive gear (2082). The outer wall of the drive gear (2082) is meshed with a linkage gear (2083), and the inner wall of the linkage gear (2083) is fixedly connected to the top of the outer wall of the rotating shaft (6).

6. A radial plunger hydraulic pump for an oilfield pumping unit according to claim 4, characterized in that: The discharge assembly (7) includes a discharge pipe (701), the right end of which is connected to the left side of the collection ring pipe (2073), a pipe valve (702) is fixedly connected to the outer wall of the discharge pipe (701), and a flange (703) is fixedly connected to the left end of the discharge pipe (701).

7. A radial plunger hydraulic pump for an oilfield pumping unit according to claim 4, characterized in that: The bottom end of the dispersion ring pipe (2074) is connected to the feed pipe (801), and the bottom end of the outer wall of the feed pipe (801) passes through the top end of the base plate (1) and is fixedly connected to the valve (802).

8. A radial plunger hydraulic pump for oilfield pumping units according to claim 1, characterized in that: The neutralizing component (9) includes a counterweight arc block (901), the bottom end of which passes through the top end of the fixed disk (5) and is fixedly connected to the top end of the rotating shaft (6). A hollow protective cylinder (902) is fixedly connected to the middle of the top end of the fixed disk (5).

Images