Universal rapid pushing device for oil pumping unit

Abstract

The utility model relates to a device for adjusting the relative position of a machine shell and a supporting object of the machine shell, in particular to a universal type rapid pushing device of an oil pumping unit. The universal type rapid pushing device of the oil pumping unit comprises a base used for being fixedly installed on a motor sliding rail, a base support is installed on one side of the base, two supporting arms with the same length are installed on the base support, the other ends of the two supporting arms are connected with connecting columns respectively and connected with pushing arms through the connecting columns, and the pushing arms are connected with the motor sliding rail through the connecting columns. The pushing arms connected with the two supporting arms are equal in length, the other ends of the pushing arms are connected to the same pushing head, the two supporting arms and the two pushing arms jointly form a quadrilateral mechanism, threaded holes are formed in the middles of the connecting columns, screw rods are installed in the threaded holes of the connecting columns, the screw rods penetrate through the threaded holes of the two connecting columns, and the thread directions of the threaded holes are opposite. The distance between the connecting columns can be increased and decreased by rotating the threaded rod, the supporting arms, the connecting columns and the threaded rod form a scissor jack structure, operation is convenient, and the jacking speed is high.

Description

Technical Field

[0001] The utility model relates to a device for adjusting the relative position of a casing and a supporting object, in particular to a universal fast pushing device for an oil pumping unit. Background Art

[0002] In the petrochemical industry, beam pumping units and tower pumping units are currently the most commonly used oil production equipment in oil fields. A belt drive transmits power between the motor and the pumping unit's reduction gear. The pumping unit drives the deep-well pump via the sucker rod to lift crude oil out of the wellhead. Routine oil production management requires frequent replacement of the motor's drive belt and adjustment of the pumping unit's stroke rate by replacing pulleys of different specifications. Replacing a pulley on a pumping unit requires loosening the motor's anchor screws, shifting the motor, removing the original pulley, and installing a new one. After installation, the motor must be reset and horizontally moved back and forth using a screwdriver to return it to its original position or adjust the tension to the appropriate level.

[0003] Traditional jacking screw tools use a force rod to insert into the jacking screw hole and use the rotating screw thread to move the motor horizontally back and forth. However, different fixing structures are required for different types of oil pumping units. In order to reduce the burden on workers and reduce labor, a jacking screw tool that can be used on both types of oil pumping units is needed, which is labor-saving, convenient, and has a fast jacking speed.

[0004] For example, the utility model with authorization announcement number CN208353137U and authorization announcement date of January 8, 2019 discloses a universal quick-acting screw for oil pumping units. Since the notch in the middle of the slide rail used to fix the motor used in the walking beam pumping unit and the tower pumping unit is the same size, the screw is designed with a T-shaped base. The T-shaped base is arranged inside the motor slide rail. The T-shaped base protrusion extends from the notch in the middle of the slide rail. A threaded column is arranged on the upper part of the protrusion. A concave pressure block corresponding to the T-shaped base protrusion is installed along the threaded column. A pressure cap with a threaded hole is installed on the threaded column. The T-shaped base and the concave pressure block are locked and fixed to the motor slide rail through the pressure cap. A threaded hole is opened in the protrusion of the T-shaped base along the direction of the slide rail where the motor is located. A screw is installed in the threaded hole. A head is installed at the end of the screw near the motor. Different types of heads can be replaced according to the different motor bases. Although the jacking screw disclosed in the utility model can be used on a variety of oil pumping unit motors, the jacking screw rod is thin and has a long stroke. When subjected to excessive force, it is easy to bend and deform or even be scrapped, which consumes a lot of costs. At the same time, the screw structure has a slow jacking speed and is inconvenient to operate. Utility Model Content

[0005] The utility model aims to provide a universal fast jacking device for an oil pumping unit, so as to solve the problems of slow jacking speed and inconvenient operation of the jacking screw of the oil pumping unit.

[0006] To solve the above problems, the following technical solutions are adopted for the universal fast pushing device of the pumping unit of the utility model:

[0007] A universal fast pushing device for a pumping unit includes a base for fixedly installing on the motor slide rail. On one side of the base, a base bracket is installed. On the base bracket, two equal-length arms are installed. The other ends of the two arms are respectively connected with connecting columns and connected with a pushing arm through the connecting columns. The pushing arms connected by the two arms are of equal length and the other ends are connected to the same top head. The two arms and the two pushing arms together form a quadrilateral mechanism. A threaded hole is opened in the middle of the connecting column, and a screw rod is installed in the threaded hole of the connecting column. The screw rod passes through the threaded holes of the two connecting columns, and the thread directions of the threaded holes are opposite, so as to be able to expand and contract the distance between the connecting columns by rotating the screw rod.

[0008] Furthermore, the arms are of equal length to the pushing arms.

[0009] Furthermore, the cross-sections of the arms and the pushing arms are both "匚"-shaped, and the openings all face the inside of the four arms.

[0010] Furthermore, one end of the screw rod is provided with a section for cooperating with a screwing tool, and a crank is configured to cooperate with the screwing tool section.

[0011] Furthermore, the section for cooperating with the screwing tool is in the shape of a regular prism.

[0012] Furthermore, the top head includes a column body, and a section of support column is installed on the column body. A push plate perpendicular to the support column is installed at the end of the support column facing away from the base.

[0013] Furthermore, the support column is installed on the column body by welding.

[0014] Furthermore, the base includes a base and a base fastening piece. The base fastening piece is used for installing into the chute of the motor slide rail. Corresponding through holes are opened on the base and the base fastening piece, and the two are connected by bolts.

[0015] Beneficial effect: The utility model is an improved invention. The jacking rod is connected to the support rod by the support arm, and the support arm and the support arm are connected to the support rod by the support arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an embodiment of a universal rapid jacking device for an oil pumping unit of the present utility model;

[0017] Figure 2 for Figure 1 A schematic structural diagram of a base fastening plate in an embodiment;

[0018] Figure 3 for Figure 1 A schematic structural diagram of the base and base support in the embodiment;

[0019] Figure 4 for Figure 1 A schematic structural diagram of a support arm or a push arm in an embodiment;

[0020] Figure 5 for Figure 1 A schematic structural diagram of a connecting column in an embodiment;

[0021] Figure 6 for Figure 1 A schematic structural diagram of the screw in the embodiment;

[0022] Figure 7 for Figure 1 A schematic structural diagram of the plug in the embodiment;

[0023] Figure 8 for Figure 1 A schematic structural diagram of the crank in the embodiment.

[0024] In the figure: 1. Base fastening plate; 2. Base; 3. Base bracket; 4. Support arm; 5. Connecting column; 6. Screw; 7. Push head; 8. Crank handle; 9. Base; 10. Push arm; 11. Twist tool matching section; 12. Support column; 13. Push plate; 14. Threaded hole. DETAILED DESCRIPTION

[0025] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0026] Existing jacking screw tools for oil pumping units all use a jacking screw structure, which leads to slow jacking speed and inconvenient operation. The concept of this utility model is to organically combine the jack structure with the existing jacking screw structure, reducing the difficulty of operation and improving jacking efficiency while ensuring universality.

[0027] like Figure 1 、 5 As shown, based on the above concept, in a basic embodiment, the universal rapid jacking device of the oil pumping unit of the present invention includes a base 2 for being fixedly mounted on the motor slide rail, which serves as a fixed fulcrum during operation. A base bracket 3 is installed on one side of the base 2, and two equal-length support arms 4 are installed on the base bracket 3. The other ends of the two support arms 4 are respectively connected to connecting columns 5 and connected to jacking arms 10 through the connecting columns 5. The jacking arms 10 connected to the two support arms 4 are of equal length and the other ends are connected to the same jacking head 7. The two support arms 4 and the two jacking arms 10 together form a quadrilateral. The mechanism has a threaded hole 14 in the middle of the connecting column 5, and a screw 6 is installed in the threaded hole of the connecting column 5. The screw 6 passes through the threaded holes 14 of the two connecting columns 5. The screw 6 and the support arm 4, the screw 6 and the pushing arm 10 form an isosceles triangle structure. The structure has good stability, high strength, and is not easy to deform. The thread directions of the threaded holes 14 are opposite, so that the spacing between the connecting columns 5 can be expanded and reduced by rotating the screw 6. The increase and decrease of the height can be controlled by changing the length of the bottom side of the isosceles triangle structure, forming a scissor jack structure with fast pushing speed, low operation difficulty and high efficiency.

[0028] like Figure 4As shown, in a preferred embodiment, the support arm 4 is of the same length as the pushing arm 10, avoiding bending deformation of the support arm 4 or the pushing arm 10 caused by uneven force during the pushing process. In other embodiments, the lengths of the support arm 4 and the pushing arm 10 are inconsistent. Although this will reduce their service life, they can still be used normally. The cross-sections of the support arm 4 and the pushing arm 10 are both "C" shaped, making the support arm 4 and the pushing arm 10 stronger and not easily bent during operation. The openings of the support arm 4 and the pushing arm 10 both face the inside of the quadrilateral structure, preventing the support arm 4 and the pushing arm 10 from colliding or rubbing against each other and causing damage during operation. In other embodiments, the support arm 4 and the pushing arm 10 can also use bar steel. Although the strength is poor and it is easy to bend, it can still work properly.

[0029] As Figure 6 , 8 shown, in a preferred embodiment, one end of the screw 6 is provided with a screwing tool mating section 11, and a crank 8 that can cooperate with the screwing tool section 11 is configured. During operation, the motor is pushed by rotating the crank 8. In other embodiments, by providing a clamping groove at the end of the screw 6, the anti-rotation cooperation between the screw 6 and the crank can be achieved, and it can work properly. The screwing tool mating section 11 is a regular prism shape. In addition to the crank 8, a ratchet wrench can also be conveniently used to rotate the screw 6. In other embodiments, the screwing tool mating section 11 can also be designed with a semi-circular cross-section and can also cooperate with the crank 8. Although it is not convenient to replace different tools according to the actual situation, it can still work properly.

[0030] As Figure 7 shown, in a preferred embodiment, the top head includes a cylinder 14. In order to prevent deformation during the pushing process, a support column 12 is installed on the cylinder 14. A push plate 13 perpendicular to the support column 12 is installed at one end of the support column 12 facing away from the base 2. During operation, the push plate 13 directly contacts the motor base, preventing slipping during the pushing process and causing the top head 7 to tilt upward and the device to be damaged. In other embodiments, the cylinder 14 is directly in contact with the motor base. Although it is easy to slip, it can still work properly. The support column 12 is installed on the cylinder 14 by welding, ensuring firm connection and preventing safety accidents caused by the detachment of the support column 12 during operation. In other embodiments, the support column 12 can also be fixed by opening corresponding threaded holes on the cylinder 14, and a similar effect can be achieved.

[0031] As Figure 2 , 3As shown, in a preferred embodiment, the base 2 includes a base 9 and a base fastening plate 1, the base fastening plate 1 is used to be installed in the slide groove of the motor slide rail, the base 9 and the base fastening plate 1 are provided with corresponding through holes, and the two are connected by bolts. During operation, the base 9 is installed above the motor slide rail, and the base fastening plate 1 is provided in the motor slide rail. The two are fixedly connected to the motor slide rail by bolts, and the installation position can be easily adjusted. At the same time, the slide rail is clamped by the fastening of the two to ensure that the base does not slide during operation. In other embodiments, a T-shaped base and corresponding fasteners can be provided as shown in the comparative documents. Although this increases the cost, it can work normally.

[0032] When replacing the motor pulley, first unscrew the motor anchor screws, move the motor, disassemble and replace the pulley, fix the base 2 and the base fastening plate 1 to the appropriate position of the motor slide rail with screws, fit the steel plate of the jack head with the motor seat, and according to the requirements of the tension force and the motor position, according to the actual situation on site, use a ratchet wrench or jack head 78 to rotate the screw 6 to move the jack head forward and backward until the tension force reaches the target, tighten the motor anchor bolts, and the replacement is completed.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. A universal rapid jacking device for an oil pumping unit, comprising a base for fixedly mounting on a motor slide rail, characterized in that: One side of the base is equipped with a base bracket, and two equal-length arms are installed on the base bracket. The other ends of the two arms are respectively connected with connecting columns and are connected with a pushing arm through the connecting columns. The pushing arms connected by the two arms are of equal length and the other ends are connected to the same top head. The two arms and the two pushing arms together form a quadrilateral mechanism. A threaded hole is opened in the middle of the connecting column, and a screw rod is installed in the threaded hole of the connecting column. The screw rod passes through the threaded holes of the two connecting columns, and the thread directions of the threaded holes are opposite, so as to be able to expand and contract the distance between the connecting columns by rotating the screw rod.

2. The universal rapid jacking device for oil pumping units according to claim 1, characterized in that: The arms are of equal length to the pushing arms.

3. The universal rapid jacking device for oil pumping units according to claim 1 or 2, characterized in that: The cross-sections of the arms and the pushing arms are both "匚"-shaped, and the openings all face the inside of the four arms.

4. The universal rapid jacking device for oil pumping units according to claim 1 or 2, characterized in that: One end of the screw rod is provided with a section for cooperating with a screwing tool, and a crank is configured to cooperate with the screwing tool section.

5. The universal rapid jacking device for oil pumping units according to claim 4, characterized in that: The section for cooperating with the screwing tool is a regular prism shape.

6. The universal rapid jacking device for oil pumping units according to claim 1 or 2, characterized in that: The top head includes a column body, and a support column is installed on the column body. A push plate perpendicular to the support column is installed at one end of the support column facing away from the base.

7. The universal rapid jacking device for oil pumping units according to claim 6, characterized in that: The support column is installed on the column body by welding.

8. The universal rapid jacking device for oil pumping units according to claim 1 or 2, characterized in that: The base includes a base and a base fastening piece. The base fastening piece is used to be installed in the chute of the motor slide rail. Corresponding through holes are opened on the base and the base fastening piece, and the two are connected by bolts.

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