Anti-eccentric-wear plunger type oil well pump

Abstract

The utility model discloses an anti-eccentric-wear plunger type oil well pump, and relates to the technical field of plunger type oil well pumps. The anti-deviation pump comprises a pump cylinder, a plunger rod is arranged in the pump cylinder, an anti-deviation assembly is arranged on the outer side of the plunger rod, a plunger is fixedly connected to the left side of the plunger rod, the anti-deviation assembly comprises a fixed disc, a plurality of sliding holes are formed in the fixed disc, and movable rods are slidably connected to the inner walls of the sliding holes. The movable rods comprise the same parts. By arranging the deviation preventing assembly, specifically, when the plunger deviates, a certain position deviates to push the movable rod, the first limiting block extrudes the spring, and after the first magnet is close to the second magnet, the movable rod is pushed reversely under the effect of like pole repulsion and the effect of elasticity of the spring, so that the deviation position of the plunger is aligned; the condition of deviation is avoided, damage to the pump cylinder and the plunger is reduced, and the service life of the oil well pump is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of plunger type oil pumps, and particularly relates to a plunger type oil pump for preventing eccentric wear. Background Art

[0002] The plunger type oil pump is a common oil pump, and its principle is to extract the fluid underground by using multiple one-way valves.

[0003] In the existing oil pump, when severe vibration occurs, the plunger rod will shift, resulting in uneven friction between the plunger and the pump barrel. It is easy to cause severe friction on one side, which affects the use of the oil pump. At the same time, after the plunger shifts, the severe friction not only easily damages the plunger, but also causes great damage to the oil pump. In severe cases, the oil pump will be damaged, thus requiring manpower and material resources for maintenance and causing economic losses. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a plunger type oil pump for preventing eccentric wear. By setting an anti-offset component, specifically when the plunger shifts, the shift at a certain position will push the movable rod, and the limiting block 1 will compress the spring. When magnet 1 approaches magnet 2, it will reversely push the movable rod under the action of the same-sex repulsion and the elasticity of the spring, thereby correcting the offset position of the plunger, avoiding the offset situation, reducing the damage of the pump barrel and the plunger, and improving the service life of the oil pump. It solves the problem that after the plunger shifts, the severe friction not only easily damages the plunger, but also causes great damage to the oil pump. In severe cases, the oil pump will be damaged, thus requiring manpower and material resources for maintenance and causing economic losses.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a plunger type oil pump for preventing eccentric wear, including a pump barrel. A plunger rod is arranged inside the pump barrel, and an anti-offset component is arranged outside the plunger rod. A plunger is fixedly connected to the left side of the plunger rod. The anti-offset component includes a fixed disk, and a plurality of sliding holes are opened inside the fixed disk. The inner walls of the plurality of sliding holes are all slidably connected with movable rods;

[0007] The parts included in the plurality of movable rods are the same. A spherical block is fixedly connected to the left side of the movable rod, a fixed block is fixedly connected to the right side of the movable rod, and magnet 1 is inlaid on the right side of the fixed block. By setting the anti-offset component, specifically when the plunger shifts, the shift at a certain position will push the movable rod, and the limiting block 1 will compress the spring. When magnet 1 approaches magnet 2, it will reversely push the movable rod under the action of the same-sex repulsion and the elasticity of the spring, thereby correcting the offset position of the plunger, avoiding the offset situation, reducing the damage of the pump barrel and the plunger, and improving the service life of the oil pump.

[0008] Further, a stabilizing ring is fixedly connected to the right side of the plunger. An annular groove I is formed on the outer ring of the stabilizing ring. A sealing sleeve I is sleeved inside the annular groove I. A plurality of spherical grooves are formed on the right side of the plunger rod. A stabilizing sleeve is fixedly connected to the outer surface of the plunger rod. By providing the stabilizing ring and the stabilizing sleeve, specifically, the stabilizing ring will move together with the plunger, thereby assisting the plunger. At the same time, the plunger rod will drive the stabilizing sleeve to move together, and the stabilizing sleeve can further assist the plunger, making it difficult for the plunger to deviate.

[0009] Further, a magnet II is inlaid on the left side of the stabilizing sleeve. An annular groove II is formed on the outer surface of the stabilizing sleeve. A sealing sleeve II is sleeved inside the annular groove II. The sides of the magnet II and the magnet I corresponding to each other are of the same pole. The sealing sleeve II is used to provide sealing and at the same time reduce the friction force, making the movement of the stabilizing sleeve smoother.

[0010] Further, a limiting block I is fixedly connected to the outer surface of the movable rod. A limiting block II is provided on the right side of the fixed disk. The inner wall of the limiting block II is fixedly connected to the outer surface of the movable rod. A spring is fixedly connected to the right side of the limiting block I. When the movable rod moves to the right, it will drive the limiting block I to squeeze the spring, so as to facilitate the reset of the movable rod under the action of elasticity.

[0011] Further, the right side of the spring is fixedly connected to the left side of the fixed disk. A telescopic cylinder is sleeved outside the spring. The left side of the telescopic cylinder is fixedly connected to the right side of the limiting block I. The right side of the telescopic cylinder is fixedly connected to the left side of the fixed disk. The telescopic cylinder is used to provide a blocking function and does not affect the movement of the movable rod.

[0012] Further, a circular groove is formed at the center of the fixed disk. The inner wall of the circular groove is fixedly connected to the outer surface of the plunger rod. The spherical block is in rolling connection with the inner wall of the spherical groove. The outer surface of the plunger contacts the inner wall of the pump barrel. The outer surface of the sealing sleeve I contacts the inner wall of the pump barrel. The outer surface of the sealing sleeve II contacts the inner wall of the pump barrel. The left side of the limiting block II contacts the right side of the fixed disk. When the movable rod moves, the spherical block will slide in the spherical groove, so it does not affect the movement of the movable rod and can smoothly reset the plunger at the same time.

[0013] The utility model has the following beneficial effects:

[0014] 1. By providing an anti-deviation component, specifically, when the plunger deviates, the deviation at a certain position will push the movable rod, and the limiting block I will squeeze the spring. When the magnet I approaches the magnet II, it will push the movable rod in the reverse direction under the action of the same-sex repulsion and the elasticity of the spring, thereby correcting the deviation position of the plunger, avoiding deviation, reducing the damage of the pump barrel and the plunger, and improving the service life of the oil extraction pump.

[0015] 2. The utility model is provided with a stabilizing ring and a stabilizing sleeve. Specifically, the stabilizing ring moves together with the plunger, thereby assisting the plunger. At the same time, the plunger rod drives the stabilizing sleeve to move together, and the stabilizing sleeve can further assist the plunger, making it difficult for the plunger to deviate.

[0016] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal sectional structure of the pump barrel of the utility model;

[0020] Figure 3 For the utility model Figure 2 an enlarged schematic diagram of A therein;

[0021] Figure 4 It is a schematic diagram of the overall structure of the plunger of the utility model;

[0022] Figure 5 It is a schematic diagram of the right side structure of the plunger of the utility model.

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Pump barrel; 11. Plunger rod; 111. Plunger; 112. Stabilizing ring; 113. First sealing sleeve; 114. Spherical groove; 12. Anti-deviation assembly; 121. Fixed disk; 211. Slide hole; 122. Movable rod; 221. First limiting block; 222. Second limiting block; 223. Spring; 224. Telescopic cylinder; 123. Spherical block; 124. Fixed block; 125. First magnet; 13. Stabilizing sleeve; 131. Second magnet; 132. Second sealing sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5As shown in the figure, the utility model is a plunger type oil pump for preventing eccentric wear, which includes a pump barrel 1. Inside the pump barrel 1, there is a plunger rod 11. An anti-offset component 12 is arranged outside the plunger rod 11. A plunger 111 is fixedly connected to the left side of the plunger rod 11. The anti-offset component 12 includes a fixed disk 121. A circular groove is provided at the center of the fixed disk 121. The inner wall of the circular groove is fixedly connected to the outer surface of the plunger rod 11. A spherical block 123 is in rolling connection with the inner wall of a spherical groove 114. The outer surface of the plunger 111 contacts the inner wall of the pump barrel 1. The outer surface of a first sealing sleeve 113 contacts the inner wall of the pump barrel 1. The outer surface of a second sealing sleeve 132 contacts the inner wall of the pump barrel 1. The left side of a second limiting block 222 contacts the right side of the fixed disk 121. A number of sliding holes 211 are provided inside the fixed disk 121. A movable rod 122 is slidably connected to the inner wall of each of the number of sliding holes 211. The parts included in the number of movable rods 122 are the same. A spherical block 123 is fixedly connected to the left side of the movable rod 122. A fixed block 124 is fixedly connected to the right side of the movable rod 122. A first magnet 125 is embedded in the right side of the fixed block 124. By setting the anti-offset component 12, specifically when the plunger 111 is offset, the offset at a certain position will push the movable rod 122, and a first limiting block 221 will squeeze a spring 223. When the first magnet 125 approaches a second magnet 131, it will be reversely pushed by the action of like poles repelling each other and the elasticity of the spring 223 to push the movable rod 122, thereby correcting the offset position of the plunger 111, avoiding the offset situation, reducing the damage of the pump barrel 1 and the plunger 111, and improving the service life of the oil pump. A stabilizing ring 112 is fixedly connected to the right side of the plunger 111. A first annular groove is provided on the outer ring of the stabilizing ring 112. A first sealing sleeve 113 is sleeved inside the first annular groove. A number of spherical grooves 114 are provided on the right side of the plunger rod 11. A stabilizing sleeve 13 is fixedly connected to the outer surface of the plunger rod 11. By setting the stabilizing ring 112 and the stabilizing sleeve 13, specifically the stabilizing ring 112 will move together with the plunger 111, thus playing an auxiliary role for the plunger 111. At the same time, the plunger rod 11 will drive the stabilizing sleeve 13 to move together. The stabilizing sleeve 13 can play an auxiliary role for the plunger 111 again, making it difficult for the plunger 111 to be offset. A second magnet 131 is embedded in the left side of the stabilizing sleeve 13. A second annular groove is provided on the outer surface of the stabilizing sleeve 13. A second sealing sleeve 132 is sleeved inside the second annular groove. The sides of the second magnet 131 and the first magnet 125 corresponding to each other are of the same pole. A first limiting block 221 is fixedly connected to the outer surface of the movable rod 122. A second limiting block 222 is arranged on the right side of the fixed disk 121. The inner wall of the second limiting block 222 is fixedly connected to the outer surface of the movable rod 122. A spring 223 is fixedly connected to the right side of the first limiting block 221. The right side of the spring 223 is fixedly connected to the left side of the fixed disk 121. A telescopic cylinder 224 is sleeved outside the spring 223. The left side of the telescopic cylinder 224 is fixedly connected to the right side of the first limiting block 221. The right side of the telescopic cylinder 224 is fixedly connected to the left side of the fixed disk 121.

[0027] A specific application of this embodiment is:

[0028] During use, the plunger rod 11 drives the plunger 111 to reciprocate, then the stabilizing ring 112 will move along with it, and the first sealing sleeve 113 will rub against the inner wall of the pump barrel 1, thus playing an auxiliary role for the plunger 111 to reduce the situation of the plunger 111 shifting. At the same time, the plunger rod 11 drives the stabilizing sleeve 13 to move together, and the second sealing sleeve 132 rubs against the inner wall of the pump barrel 1. The stabilizing sleeve 13 can play an auxiliary role for the plunger 111 again, making it difficult for the plunger 111 to shift. When the plunger 111 shifts, the shift at a certain position will push the movable rod 122 to slide in the sliding hole 211 on the fixed plate 121. At the same time, the first limiting block 221 will squeeze the spring 223. Since the spherical block 123 rolls in the spherical groove 114, it will not affect the movement of the movable rod 122. At the same time, the movable rod 122 drives the fixed block 124 to approach the stabilizing sleeve 13. When the first magnet 125 approaches the second magnet 131, it will push the movable rod 122 in the reverse direction through the action of like poles repelling each other. At the same time, the movable rod 122 will be pushed in the reverse direction again under the elastic action of the spring 223, thereby correcting the shifted position of the plunger 111, avoiding the situation of shifting, making the friction between the plunger 111 and the inner wall of the pump barrel 1 more uniform, reducing the damage of the pump barrel 1 and the plunger 111, and improving the service life of the oil pump.

[0029] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The above-disclosed preferred embodiments of the utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the utility model, so that those skilled in the technical field can well understand and utilize the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A plunger-type oil pump for preventing eccentric wear, comprising a pump barrel (1), a plunger rod (11) being arranged inside the pump barrel (1), and an anti-eccentric assembly (12) being arranged outside the plunger rod (11), characterized in that: The left side of the plunger rod (11) is fixedly connected to a plunger (111), and the anti-deflection component (12) comprises a fixed plate (121), a plurality of sliding holes (211) are provided inside the fixed plate (121), and the inner walls of the plurality of sliding holes (211) are slidably connected to movable rods (122); The parts included in the plurality of movable rods (122) are the same. The left side of the movable rod (122) is fixedly connected with a spherical block (123). The right side of the movable rod (122) is fixedly connected with a fixed block (124). The right side of the fixed block (124) is inlaid with a magnet 1 (125).

2. The anti-eccentric wear plunger oil pump according to claim 1, characterized in that: The right side of the plunger (111) is fixedly connected to a stabilizing ring (112), the outer ring of the stabilizing ring (112) is provided with an annular groove, the inner part of the annular groove is provided with a sealing sleeve (113), the right side of the plunger rod (11) is provided with a plurality of spherical grooves (114), and the outer surface of the plunger rod (11) is fixedly connected to a stabilizing sleeve (13).

3. The anti-eccentric wear plunger oil pump according to claim 2, characterized in that: A second magnet (131) is embedded on the left side of the stabilizing sleeve (13), an annular groove (2) is provided on the outer surface of the stabilizing sleeve (13), a second sealing sleeve (132) is provided inside the second annular groove, and the corresponding sides of the second magnet (131) and the first magnet (125) are of the same pole.

4. The anti-eccentric wear plunger oil pump according to claim 3, characterized in that: The outer surface of the movable rod (122) is fixedly connected to a limiting block 1 (221); a limiting block 2 (222) is arranged on the right side of the fixed plate (121); the inner wall of the limiting block 2 (222) is fixedly connected to the outer surface of the movable rod (122); and a spring (223) is fixedly connected to the right side of the limiting block 1 (221).

5. The anti-eccentric wear plunger oil pump according to claim 4, characterized in that: The right side of the spring (223) is fixedly connected to the left side of the fixed disk (121); a telescopic tube (224) is sleeved on the outside of the spring (223); the left side of the telescopic tube (224) is fixedly connected to the right side of the first limit block (221); and the right side of the telescopic tube (224) is fixedly connected to the left side of the fixed disk (121).

6. The anti-eccentric wear plunger oil pump according to claim 4, characterized in that: A circular groove is provided at the center of the fixed disk (121), the inner wall of the circular groove is fixedly connected to the outer surface of the plunger rod (11), the spherical block (123) is rollingly connected to the inner wall of the spherical groove (114), and the outer surface of the plunger (111) is in contact with the inner wall of the pump barrel (1).

7. The anti-eccentric wear plunger oil pump according to claim 5, characterized in that: The outer surface of the sealing sleeve 1 (113) contacts the inner wall of the pump barrel (1), the outer surface of the sealing sleeve 2 (132) contacts the inner wall of the pump barrel (1), and the left side of the limit block 2 (222) contacts the right side of the fixed plate (121).

Images