CN215213454U - Top drive motor reversing chain oil pumping unit - Google Patents

Abstract

The utility model belongs to the technical field of the petroleum equipment, especially, relate to a motor switching-over chain beam-pumping unit is driven on top. Including frame and power device, still include the chain, the sprocket is installed at the top of frame, the chain hang in on the sprocket, and with the sprocket meshing, the first end of chain is connected with the weight box, the second end of chain is installed and is connect the oil box and be used for the polished rod eye of being connected with the sucker rod, connect the oil box motion extremely can during the top of sprocket to the chain provides lubricating oil, power device installs the top of frame, and be used for the drive the sprocket rotates in order to drive chain reciprocating motion. The beneficial effects are that: simple structure, convenient operation, beam-pumping unit adopt chain and sprocket cooperation to make polished rod eye and weight box chain difficult the skidding in reciprocating motion from top to bottom at the operation in-process, appear the condition of weight box free fall when avoiding disconnected pole, improve the security performance.

Description

Top drive motor reversing chain oil pumping unit

Technical Field

The utility model belongs to the technical field of the petroleum equipment, especially, relate to a motor switching-over chain beam-pumping unit is driven on top.

Background

At present, common motor reversing pumping units mainly have two types, one type is a steel wire rope friction wheel type pumping unit, the other type is a belt drum type pumping unit, and the two types of pumping units have the following three problems in field use: (1) the stripping and hanging polish rod must be at the top dead center position during operation, so that the operation is difficult and unsafe; (2) when the sucker rod is used for oil extraction of a heavy oil well, the downward resistance of the sucker rod is large, the positive pressure between a belt or a steel wire rope and a friction wheel is small, so that the friction force is small, the belt slips, the polished rod cannot move downward under the action of a balance weight, and a control system cannot receive a signal, so that the protection shutdown is caused; (3) because the power is transmitted only by friction, the load loss protection is difficult, and when the rod is broken, the weight box becomes a free-falling body and falls down rapidly, so the weight box is easy to break and is unsafe.

Disclosure of Invention

In view of the foregoing prior art shortcoming, an object of the utility model is to provide a top drive motor switching-over chain beam-pumping unit for solve among the prior art transmission part of beam-pumping unit easily skid, the security performance is low, the inconvenient problem of operation.

In order to realize above-mentioned purpose and other relevant purposes, the utility model provides a motor switching-over chain beam-pumping unit is driven on top, including frame and power device, still include the chain, the sprocket is installed at the top of frame, the chain hang in sprocket is last, and with the sprocket meshing, the first end of chain is connected with the weight box, the second end of chain is installed and is connect the oil box and be used for the polished rod eye of being connected with the sucker rod, connect the oil box motion extremely can during the top of sprocket to the chain provides lubricating oil, power device installs the top of frame, and be used for the drive the sprocket rotates in order to drive chain reciprocating motion.

Optionally, connect the oil box include with the box body that the chain is connected, the top of box body is equipped with uncovered, one side of box body is equipped with the glib talker that is used for producing oil, connect the oil box motion extremely during the top of sprocket, the glib talker aims at the setting and is in lead the oil groove on the frame top, lead the oil groove and be used for leading lubricating oil to on the chain.

Optionally, two connecting columns are convexly arranged on one side of the box body, and the two connecting columns are hinged to the chain link hinge points of the chain.

Optionally, the box body is a square box body, and the oil nozzles and the connecting columns are respectively arranged on two adjacent sides of the box body.

Optionally, the oil nipple is arranged obliquely downwards.

Optionally, the sprocket is rotatably mounted to the top of the frame by a bearing assembly.

Optionally, the power device includes a speed reducer, a motor, and a controller for controlling the rotation direction of the motor, an output end of the motor is in transmission connection with an input end of the speed reducer through a coupling, and an output end of the speed reducer is in transmission connection with the sprocket.

Optionally, the power device further comprises a brake connected with the speed reducer.

Optionally, the motor is a permanent magnet motor.

Optionally, a guard for protecting the chain is mounted on the frame.

As above, the utility model discloses a motor switching-over chain beam-pumping unit is driven on top has following beneficial effect at least: simple structure, convenient operation, beam-pumping unit adopt chain and sprocket cooperation to make polished rod eye and weight box chain difficult the skidding in reciprocating motion from top to bottom at the operation in-process, appear the condition of weight box free fall when avoiding disconnected pole, improve the security performance.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a top drive motor-commutated chain pumping unit according to the present invention;

fig. 2 shows a schematic view of the top drive motor-reversing chain pumping unit according to the present invention, after the power device at the top of the frame is removed.

Fig. 3 is a top view of the power plant of an embodiment of the top drive motor commutated chain pumping unit of the present invention;

fig. 4 is a schematic structural view of an oil receiving box of an embodiment of the top drive motor commutation chain oil pumping unit of the present invention;

fig. 5 is a schematic view showing a state of the oil receiving box of the top drive motor commutating chain pumping unit of the present invention at a downward limit position;

fig. 6 is a schematic view showing a state when the oil receiving box of the embodiment of the top drive motor commutating chain pumping unit of the present invention is close to an upward limit position;

fig. 7 shows a schematic diagram of a state when the oil receiving box of an embodiment of the top drive motor commutation chain pumping unit of the present invention is located at an upward limit position.

Description of reference numerals

1-a frame; 11-a machine base; 12-a pull rod; 13-a shield; 2-a sprocket; 21-sprocket shaft; 3, a chain; 4-weight box; 5-oil receiving box; 51-a cartridge; 52-open mouth; 53-glib talker; 54-connecting column; 6-a power plant; 61-an electric motor; 62-a coupler; 63-a speed reducer; 64-a brake; 65-motor base; 66-reducer base; 7-a bearing assembly; 71-a support bearing; 72-bearing seat.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Referring to fig. 1 to 7, in an embodiment, the present application provides a top drive motor-commutated chain pumping unit, which includes a frame 1, a chain 3, and a power unit 6. Wherein, the top of the frame 1 is provided with a chain wheel 2; the chain 3 is hung on the chain wheel 2 and meshed with the chain wheel 2, a first end of the chain 3 is connected with a weight box 4, a second end of the chain 3 is provided with an oil receiving box 5 and a rope hanger (not shown in the figure) for connecting with a sucker rod, the rope hanger is positioned below the oil receiving box 5, and lubricating oil can be provided for the chain 3 when the oil receiving box 5 moves to the top of the chain wheel 2; power device 6 installs at the top of frame 1 to and be used for driving sprocket 2 to rotate in order to drive 3 reciprocating motion of chain, power device 6 installs at the top of frame 1, makes the projection center of polished rod eye can satisfy the oil recovery operation requirement apart from the distance of frame 1, is favorable to the polished rod eye to drive the sucker rod and carries out the oil recovery operation.

According to the top drive motor reversing chain pumping unit, the weight box 4 is connected to the chain 3, so that the loads at two ends of the chain 3 can be kept balanced, and the chain 3 is matched with the chain wheel 2 to increase the friction force, so that slipping is prevented, the difficulty of load loss protection is reduced, and the safety performance is improved; and connect oil box 5 to set up on chain 3 for chain 3 can drive and connect oil box 5 to move together, need not to provide extra power and carry lubricating oil, and connect oil box 5 to set up and can also accept the lubricating oil that the part drips on chain 3 on the chain 3, pollution abatement.

Referring to fig. 1, 4 to 7, in an embodiment, the oil receiving box 5 includes a box body 51 connected to the chain 3, an opening 52 is provided at the top of the box body 51, and the lubricating oil enters the box body 51 from the opening 52. One side of the box body 51 is provided with a nozzle 53 for discharging oil, and when the oil receiving box 5 moves to the top of the chain wheel 2, that is, when the oil receiving box 5 moves to the upward limit position, the nozzle 53 is aligned with an oil guiding groove (not shown in the figure) arranged on the top of the frame 1, and the oil guiding groove is used for guiding lubricating oil to the chain 3. Wherein, glib 53 pours lubricating oil into back in leading the oil groove, 2 transform rotation directions of sprocket, connect oil box 5 to begin downstream, lead the oil groove and lead lubricating oil to the periphery of chain 3 for lubricating oil can act on chain 3, the second end of chain 3 and connect the equal downstream of oil box 5 this moment, lubricating oil acts on the chain link that chain 3 is located the top of connecing oil box 5, lubricating oil on the chain 3 can drip to connect oil box 5, realizes the recovery of lubricating oil, the pollution abatement.

Optionally, referring to fig. 1, 4 to 7, in an embodiment, two connecting columns 54 are protruded from one side of the box body 51, and the two connecting columns 54 are hinged to the chain links of the chain 3. Connect conveniently, do not influence the transmission of chain 3 and sprocket 2 promptly, can make again to connect stable the installing on chain 3 of oil box 5, avoid connecting oil box 5 to rock at will and cause the lubricating oil leakage in the box body 51.

Alternatively, referring to fig. 1 and 4, in an embodiment, the box body 51 may be a square box body, and the oil nipple 53 and the connecting column 54 are respectively disposed on two adjacent sides of the box body 51, so that during the process of driving the oil receiving box 5 by the chain 3, the lubricating oil in the box body 51 can be discharged into the oil guiding groove by the oil nipple 53.

Alternatively, referring to fig. 1 and 4, in one embodiment, the oil nipple 53 is disposed to be inclined downward, i.e., the oil outlet end of the oil nipple 53 is lower than the end of the oil nipple 53 connected to the box body 51.

Referring to fig. 1-3, in one embodiment, sprocket 2 is rotatably mounted to the top of frame 1 by a bearing assembly 7. Wherein, bearing assembly 7 includes a support bearing 71 and a bearing seat 72, the support bearing 71 is installed on the top of the frame 1 through the bearing seat 72, and the sprocket shaft 21 of the sprocket 2 is connected with the support bearing 71. A pressure sensor is arranged below the bearing seat 72, the pressure sensor transmits pressure parameters to the controller, and the controller controls the minimum load of the pumping unit so as to protect the composite material continuous pumping rod.

Referring to fig. 1 to 3, in an embodiment, the power device 6 includes a speed reducer 63, a motor 61, and a controller (not shown in the drawings) for controlling a rotation direction of the motor 61, an output end of the motor 61 is in transmission connection with an input end of the speed reducer 63 through a coupling 62, and an output end of the speed reducer 63 is in transmission connection with the sprocket 2. Wherein, the motor 61 can be arranged on the top of the frame 1 through a motor base 65; the reducer 63 may be mounted on the top of the frame 1 by a reducer mount 66.

Optionally, referring to fig. 1 to 3, in an embodiment, the power device 6 further includes a brake 64 connected to the speed reducer 63, and the power device 6 cooperates with the weight box 4 to implement load shedding protection, so as to improve safety performance.

Alternatively, referring to fig. 1 to 3, in an embodiment, the motor 61 may be a permanent magnet motor, and the permanent magnet motor drives the pumping unit to work in forward and reverse rotation under the control of an ac frequency conversion controller.

Referring to fig. 1, in one embodiment, a guard 13 for protecting the chain 3 is mounted on the frame 1. The bottom of frame 1 is equipped with frame 11, installs pull rod 12 on the frame 11, and the one end and the frame 11 of pull rod 12 are connected, and the other end of pull rod 12 is connected with the middle part of frame 1, improves the steadiness of frame 1.

Alternatively, referring to fig. 1, in an embodiment, the frame 1 may be made of H-section steel, i-section steel, or steel plate.

Referring to fig. 1 to 7, in a specific embodiment, the working process is as follows: adjusting the weight of the weight box 4 enables the load at both ends of the chain 3 to be balanced. Starting the power device 6, enabling the motor 61 to rotate in the positive direction, enabling the oil receiving box 5 and the rope hanger to move downwards, enabling the oil receiving box 5 to be immersed into an oil pool in the downward process, and enabling the oil receiving box 5 to be filled with lubricating oil; when the polished rod eye drives the sucker rod down to down utmost limit back, controller control motor 61 reverse rotation, chain 3 area connects oil box 5 and polished rod eye to go upward, connects the slope of oil box 52 tops of arriving sprocket for lubricating oil is poured out by glib talker 53 and is got into and lead the oil groove, leads lubricating oil to act on chain 3 through leading the oil groove, realizes the lubrication of chain 3, go upward to the utmost limit back of going upward, controller control motor 61 forward rotation connects oil box 5 and polished rod eye down, the circulation is reciprocal, realize the oil pumping operation.

The utility model discloses a motor switching-over chain beam-pumping unit is driven on top through chain 3 and 2 intermeshing of sprocket, has prevented to skid, during the operation, drives 2 positive and negative rotations of sprocket through power device 6 to make chain 3 drive the sucker rod and rise or descend, in order to carry out the oil pumping operation, and through simple structure, guaranteed the lubrication of 3 operation in-process of chain, can satisfy lubricated demand, can avoid the polluted environment again.

In the description of the present specification, reference to the description of the terms "present embodiment," "example," "specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a top drive motor switching-over chain beam-pumping unit, includes frame and power device, its characterized in that: still include the chain, the sprocket is installed at the top of frame, the chain hang in on the sprocket, and with the sprocket meshing, the first end of chain is connected with the weight box, the second end of chain is installed and is connect the oil box and be used for the polished rod eye of being connected with the sucker rod, connect the oil box motion extremely can during the top of sprocket to the chain provides lubricating oil, power device installs the top of frame, and be used for the drive the sprocket rotates in order to drive chain reciprocating motion.

2. The top drive motor commutated chain pumping unit of claim 1, wherein: connect the oil box include with the box body that the chain is connected, the top of box body is equipped with uncovered, one side of box body is equipped with the glib talker that is used for producing oil, connect the oil box motion extremely during the top of sprocket, the glib talker aims at the setting and is in lead the oil groove on the frame top, it is used for leading lubricating oil to lead to lead on the chain to lead the oil groove.

3. The top drive motor commutated chain pumping unit of claim 2, wherein: and two connecting columns are convexly arranged on one side of the box body and hinged with the hinge joint of the chain links of the chain.

4. The top drive motor commutated chain pumping unit of claim 3, wherein: the box body is square, the glib with the spliced pole sets up respectively on the adjacent both sides of box body.

5. The top drive motor commutated chain pumping unit of claim 2, wherein: the oil nozzle is arranged in a downward inclined mode.

6. The top drive motor commutated chain pumping unit of claim 1, wherein: the chain wheel is rotatably mounted on the top of the frame through a bearing assembly.

7. The top drive motor commutated chain pumping unit of claim 1, wherein: the power device comprises a speed reducer, a motor and a controller used for controlling the rotation direction of the motor, wherein the output end of the motor is in transmission connection with the input end of the speed reducer through a coupler, and the output end of the speed reducer is in transmission connection with the chain wheel.

8. The top drive motor commutated chain pumping unit of claim 7, wherein: the power device also comprises a brake connected with the speed reducer.

9. The top drive motor commutated chain pumping unit of claim 7, wherein: the motor is a permanent magnet motor.

10. The top drive motor commutated chain pumping unit of claim 1, wherein: and a protective cover for protecting the chain is arranged on the rack.

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