CN216072960U - Lifting device for maintenance of pumping unit - Google Patents

Abstract

The utility model belongs to the technical field of maintenance of pumping units, and particularly relates to a lifting device for maintenance of a pumping unit, which aims to solve the problems that in the prior art, a movable sliding block is connected with a lifting plate at a single position, so that the connection part is broken after long-time use, the lifting plate falls off, and safety accidents occur. The lifting device comprises a base, a lifting plate and a driving mechanism, wherein at least two upright posts are arranged on the base, a screw rod which is rotatably arranged on the base around an upper axis and a lower axis is uniformly arranged on one side of each upright post, and sliding chutes which extend up and down are formed in the side surfaces of the upright posts; the lifting plate is provided with a movable sliding block which is movably matched with the sliding groove on each upright post in a guiding way, the movable sliding block is sleeved outside the screw rod of each corresponding upright post, and the movable sliding block is in threaded fit with the screw rod; the driving mechanism is used for driving the screw rod to rotate so as to drive the lifting plate to move up and down; and all set firmly the reinforcement on the removal slider, the reinforcement arrange in the below of lifter plate, the reinforcement with all be equipped with the elastic component between the lifter plate.

Description

Lifting device for maintenance of pumping unit

Technical Field

The utility model belongs to the technical field of maintenance of pumping units, and particularly relates to a lifting device for maintenance of a pumping unit.

Background

The beam-pumping unit is widely applied to the production process of oil extraction, the balance degree is kept between 80% and 110% when the pumping unit runs, the pumping unit is low in efficiency when the pumping unit runs beyond the range, equipment faults are increased, the service life of mechanical equipment and electrical equipment is influenced, the position of a balance block on a crank is adjusted to meet the standard requirement, and the balance adjustment of the pumping unit is one of daily oil extraction workloads. In fact, during routine maintenance of the pumping unit, a plurality of processes including the balance adjusting block need to be operated in the air, and in the prior art, climbing operation is generally performed by using a ladder stand and the like, but the climbing operation has safety risks.

For this reason, chinese utility model patent that the publication number of granting is CN211570044U discloses a beam-pumping unit maintenance auxiliary assembly, and it includes base, two stands of fixed mounting on the base and rotates the lead screw of installing on the base around the axis that extends from top to bottom, and the lead screw equals with the quantity of stand, and the outside screw thread cover of lead screw is equipped with the removal slider, offers the spout that extends from top to bottom on the side of each stand, removal slider and spout sliding fit. The auxiliary equipment also comprises a lifting plate, and each movable sliding block is fixed on the lifting plate. The auxiliary equipment comprises a driving mechanism, and the driving mechanism comprises a motor capable of driving the screw rod to rotate forwards and backwards.

The problem that prior art exists lies in, is connected by the single position between removal slider and the lifter plate, and long-time use in addition open-air environment is relatively poor, leads to removing slider and lifter plate junction fracture easily, leads to the lifter plate to drop, the incident appears easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lifting device for maintaining an oil pumping unit, which aims to solve the technical problem that a lifting plate falls off from a movable sliding block due to the fact that the movable sliding block is connected with the lifting plate from a single position in the prior art.

In order to achieve the purpose, the technical scheme of the lifting device for maintaining the pumping unit provided by the utility model is as follows:

a lifting device for maintaining an oil pumping unit comprises a base, a lifting plate and a driving mechanism, wherein at least two upright posts are arranged on the base, a screw rod which is rotatably arranged on the base around an axis extending up and down is uniformly arranged on one side of each upright post, and sliding chutes extending up and down are formed in the side surfaces of the upright posts; the lifting plate is provided with a movable sliding block which is movably matched with the sliding groove on each upright post in a guiding way, the movable sliding block is sleeved outside the screw rod of each corresponding upright post, and the movable sliding block is in threaded fit with the screw rod; the driving mechanism is used for driving a screw rod to rotate so as to drive the lifting plate to move up and down; all set firmly the reinforcement on each removes the slider, the reinforcement arranges in the below of lifter plate, all be equipped with the elastic component between each reinforcement and the lifter plate.

Has the advantages that: according to the utility model, the reinforcing piece is arranged below the lifting plate, and the elastic piece is arranged between the reinforcing piece and the lifting plate. When in actual use, even appear between lifter plate and the removal slider the junction fracture or be connected the condition of dislocation, the effect that reinforcement and elastic component also can play the support guarantees that the lifter plate can not drop downwards, has effectually solved among the prior art and has removed slider and lifter plate and be connected by single position and lead to the technical problem that the lifter plate drops, has stopped the emergence of incident. The reinforcing part indirectly supports the lifting plate through the elastic part, and in the actual installation process, even if the positions of the reinforcing parts are different, the reinforcing parts can be compensated through elastic deformation of the elastic part, so that the positions of the reinforcing parts can be flexibly adjusted, the precision requirement on the reinforcing parts is low, and the processing is convenient.

Preferably, the elastic member is a compression spring fixedly arranged between the reinforcing member and the lifting plate. The elastic force that the pressure spring provided is great relatively, can satisfy the elastic component and to the holding power of lifter plate, and the pressure spring is changed conveniently.

Preferably, each reinforcing member is correspondingly provided with at least two compression springs. The elastic stress area between the reinforcing piece and the lifting plate is increased, and the stability and balance of the lifting plate are easily adjusted.

Preferably, the reinforcing member is a right-angled triangular block having a first side fixed to the movable block and a second side provided with the elastic member; the first side and the second side are vertically arranged. Through the arrangement of the right-angle triangular blocks, the matching use of two vertical edges is guaranteed, and meanwhile, the size of the reinforcing piece is reduced, the weight of the reinforcing piece is lightened, and the lifting is easy.

Preferably, the driving mechanism comprises a driving motor for driving the screw rod to rotate; the lifting plate is provided with a support extending upwards, the top of the support is provided with a controller, and the controller is connected with the driving motor to control the driving motor to rotate forwards and backwards. The operating personnel can directly adjust the controller on the lifting plate to control the driving mechanism, so that the lifting platform is lifted, the trouble that the existing control equipment is positioned on the ground and needs to be matched by a plurality of people is avoided, and the operation can be directly carried out by a single person according to the requirement.

Preferably, the driving mechanism comprises a driving motor for driving the screw rods to rotate, and each screw rod is equipped with the driving motor;

the top of each stand is all fixed mounting has the connecting plate, driving motor set firmly in the connecting plate, the lower extreme of lead screw rotates the assembly on the base, and the upper end links to each other with the driving motor who corresponds. The lead screw lower extreme rotates the assembly on the base, and the upper end relies on the driving motor who fixes on the connecting plate to carry on spacingly, and both ends homoenergetic about the lead screw can be retrained during the use, prevents that great rocking from appearing.

Preferably, the bottom of the base is provided with at least three hydraulic legs, and the hydraulic legs are arranged to be matched with the supporting base; the hydraulic support leg comprises a hydraulic cylinder fixedly arranged on the base and a support plate fixedly arranged at the end part of a piston rod in the hydraulic cylinder. Three or more hydraulic support legs enable the device to be supported more stably, and the device cannot deviate or skew in use.

Preferably, a climbing step is arranged on the base. The lifting plate is convenient for operators to get on or off.

Preferably, the bottom of base is equipped with the walking wheel, and the walking wheel is used for contacting the walking with the ground when hydraulic leg retracts, and the ground separation when hydraulic leg stretches out.

Preferably, four upright posts are arranged and distributed in a rectangular shape. Four stands are connected with the lifter plate four corners cooperation, and the device is more firm.

Drawings

Fig. 1 is a schematic structural view of a lifting device for maintaining an oil pumping unit provided by the utility model;

description of reference numerals:

1. a lifting plate; 2. a support; 3. a controller; 4. a drive motor; 5. a connecting plate; 6. a chute; 7. a screw rod; 8. moving the slide block; 9. a column; 10. a connecting member; 11. a pressure spring; 12. a right triangle reinforcement; 13. climbing steps; 14. a hydraulic leg; 15. a support plate; 16. a base; 17. a traveling wheel mounting plate; 18. and (5) traveling wheels.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

The utility model provides a lifting device for maintaining an oil pumping unit, which comprises the following specific embodiments in 1:

as shown in fig. 1, the lifting device for maintaining the pumping unit (hereinafter referred to as lifting device) comprises a base 16, wherein the base 16 is in the shape of a rectangular plate, a walking wheel mounting plate 17 is arranged at four corners of the lower surface of the base 16, and walking wheels 18 are arranged in the walking wheel mounting plate 17 and used for moving the lifting device. The three same hydraulic support legs 14 are arranged in a tripod shape below the base 16, each hydraulic support leg 14 comprises a hydraulic cylinder fixedly arranged on the base and a support plate 15 fixedly arranged at the end part of a piston rod in the hydraulic cylinder, the support plates 15 are used for supporting on the ground when in use, and the hydraulic support legs 14 are provided with self-controllable regulating valves. After the lifting device is pushed to reach the designated position, the control regulating valve enables the piston rod in the hydraulic support leg 14 to extend out, the end support plate 15 is attached to the ground, the walking wheel 18 is lifted off the ground, and therefore the lifting device is fixed.

Four same stand columns 9 are arranged at four corners of the upper surface of the base 16, the four stand columns 9 are distributed in a rectangular shape, and the four stand columns 9 are vertically welded on the base 16. The same sliding grooves 6 extending up and down are formed in the side face of each upright post 9, and the screw rods 7 extending up and down are arranged in the direction of the face, provided with the sliding grooves 6, of each upright post 9. The screw rod 7 is installed on the base 16, the screw rod 7 is connected with the base 16 in a bearing or shaft sleeve mode, the screw rod 7 is perpendicular to the base 16, and the screw rod 7 can rotate around the axis of the screw rod 7. Set up connecting plate 5 on the top lateral wall of stand 9, connecting plate 5 top sets firmly driving motor 4, and driving motor 4 links to each other with lead screw 7 through the motor output shaft that passes connecting piece 5, and driving motor 4 can just reverse to drive lead screw 7 and rotate.

All be equipped with movable slider 8 on four lead screws 7 respectively, the inside internal thread through-hole that is equipped with through movable slider 8 of movable slider 8 realizes with the screw-thread fit of lead screw 7. One side of the movable sliding block 8 extends into the sliding groove 6 and is in guide fit with the sliding groove 6, and when the screw rod 7 rotates, due to the fact that the sliding groove 6 restrains the movable sliding block 8, the movable sliding block 8 cannot rotate together with the screw rod 7, but can move up and down on the screw rod 7 along the extending direction of the sliding groove 6.

The side surfaces of the four movable sliding blocks 8 are provided with connecting pieces 10, and lifting plates 1 are connected among the four connecting pieces 10. The connecting pieces 10 are connected to the four corner side walls of the lifting plate 1, and drive the lifting plate 1 to lift when the movable sliding block 8 moves up and down. In order to cope with the sudden situation that the connecting piece 10 is broken and the lifting plate 1 falls, a right-angled triangle reinforcing piece 12 is welded below the connecting surface of the moving slide block 8 and the connecting piece 10. A first vertical edge of the right-angled triangle reinforcing piece 12 is welded with the movable sliding block 8, and a second vertical edge is elastically connected with the lifting plate 1 through a pressure spring 11. The position that every right triangle reinforcement 12 and lifter plate 1 are connected all evenly sets up 3 pressure springs 11, but every pressure spring 11 adaptation is changed. Because the elastic action of pressure spring 11, even the height differs when four right triangle reinforcements 12 weld, also can guarantee through pressure spring 11 that right triangle reinforcements 12 can support lifter plate 1.

A bracket 2 is arranged on the lifting plate 1, and the bracket 2 is vertical to the lifting plate 1. The controller 3 is arranged at the top of the support 2, and the controller 3 is connected with the driving motor 4, so that the controller 3 can realize the master control of the lifting device. The controller 3 here is a switch capable of controlling the forward and reverse rotation of the drive motor 4.

The pumping unit is internally provided with a power supply system, and when the lifting device is used, the controller 3 can be connected with a power supply of the pumping unit so as to realize the power supply of the lifting device.

The side wall of the base 16 is provided with a climbing step 13, so that an operator can conveniently climb on the lifting plate 1.

In the present embodiment, the compression spring 11 serves as an elastic member between the right-angled triangle reinforcement 12 and the lifting plate 1 to satisfy the requirement of the right-angled triangle reinforcement 12 for supporting the lifting plate 1.

The using process of the utility model is as follows: when the pumping unit needs to be maintained, the walking wheels 18 are utilized to push the lifting device to a specified position, then the control valves of the hydraulic support legs 14 are adjusted, so that the piston rods in the hydraulic cylinders extend downwards, the support plates 15 are attached to the ground, the walking wheels 18 are lifted off the ground, and the lifting device is fixed at the specified position. And after the device is fixed, an operator connects the controller 3 with the power supply of the pumping unit. After the elevator is powered on, the operator ascends the elevator plate 1 by climbing the steps 13. An operator operates the controller 3 to start the driving motor 4, the driving motor 4 works and rotates to drive the screw rod 7 to rotate so as to enable the movable sliding block 8 to move upwards, and the movable sliding block 8 drives the lifting plate 1 to move upwards to realize the lifting of the lifting device. When the maintenance position needing the work of an operator is reached, the operator controls the controller 3 to close the driving motor 4, and due to the self-locking property of the threads, the lifting platform 1 can be stably stopped at a specified height, and the operator starts to operate. After the operation is finished, an operator controls the controller 3 to start the driving motor 4 to rotate reversely, so that the movable sliding block 8 drives the lifting plate 1 to move downwards, and the lifting device is lowered.

The right-angled triangle reinforcing part 12 and the pressure spring 11 are arranged, so that the stability and firmness of the lifting plate 1 are further improved, and the screw rod 7 and the driving motor 4 are arranged, so that the lifting plate 1 can be adjusted up and down more conveniently.

The right-angled triangle reinforcement in this embodiment may be a block-shaped structure or a frame-shaped structure.

In this embodiment, each motor and the controller together form a driving mechanism capable of driving the screw rod to rotate.

The first vertical side of the right-angled triangular reinforcing member forms a first side fixed to the moving block, and the second vertical side forms a second side for disposing the elastic member, the first side and the second side being perpendicular to each other.

The utility model provides a specific embodiment 2 of a lifting device for maintaining an oil pumping unit, which comprises the following components:

the difference from embodiment 1 is that in embodiment 1, four upright posts 9 are arranged on a base 16, and the four upright posts are distributed in a rectangular shape. In this embodiment, base one side both ends and opposite side mid point set up three stands, and three stands are isosceles triangle and distribute. In other embodiments, two posts may be provided diagonally on the base.

The utility model provides a lifting device for maintaining an oil pumping unit, which comprises the following specific embodiments in part by weight:

the difference from embodiment 1 is that in embodiment 1, the bottom of the base is provided with a walking wheel 18, and the walking wheel 18 is used for contacting with the ground to walk when the hydraulic support leg is retracted and is separated from the ground when the hydraulic support leg is extended. In this embodiment, the bottom of base does not set up the walking wheel, directly transports elevating gear appointed position with trailer or fork truck when needing to use elevating gear.

The utility model provides a lifting device for maintaining an oil pumping unit, which comprises the following specific embodiments in part by weight:

the difference from embodiment 1 is that in embodiment 1, a climbing step 13 is provided on the base. In this embodiment, no step is provided on the base, and the operator can ride on the lifting plate 4.

The utility model provides a specific embodiment 5 of the lifting device for maintaining the pumping unit, which comprises the following steps:

the difference from the embodiment 1 is that in the embodiment 1, the bottom of the base is provided with three hydraulic legs, and the hydraulic legs are arranged to match with the support base. In this embodiment, the bottom of base is equipped with four hydraulic leg, supports more stably. In other embodiments, more than four hydraulic legs can be arranged at the bottom of the base.

The utility model provides a specific embodiment 6 of the lifting device for maintaining the pumping unit, which comprises the following steps:

the difference from the embodiment 1 is that in the embodiment 1, the driving motor 4 is arranged on the connecting plate 5 at the top of the screw rod, the upper end of the screw rod 7 is connected with the connecting plate 5, and the lower end is assembled on the base. In this embodiment, the driving motor is disposed at the bottom of the screw rod and directly connected to the base.

The utility model provides a lifting device for maintaining an oil pumping unit, which comprises the following specific embodiments in an embodiment 7:

the difference from the embodiment 1 is that in the embodiment 1, an upward bracket 2 is arranged on the lifting plate 1, a controller 3 is arranged on the bracket 2, and the controller 3 is connected with a driving motor 4 to control the driving motor to rotate forward and backward. In this embodiment, the controller may be placed directly on the elevator plate, or the controller may be located on the ground and operated by another operator according to instructions.

The utility model provides a specific embodiment 8 of the lifting device for maintaining the pumping unit, which comprises the following steps:

the difference from embodiment 1 is that in embodiment 1, the reinforcing member is a right-angled triangular block. In this embodiment, the reinforcing member is a rectangular block.

The utility model provides a specific embodiment of a lifting device for maintaining an oil pumping unit, which comprises the following components in percentage by weight:

the difference from embodiment 1 is that in embodiment 1, three compression springs are arranged on each reinforcing member. In this embodiment, four compression springs are disposed on each stiffener. In other embodiments, the number of compression springs on the reinforcing member may be increased or decreased.

The embodiment 10 of the lifting device for maintaining the pumping unit provided by the utility model comprises:

the difference from embodiment 1 is that in embodiment 1, the elastic member is a compression spring fixedly arranged between the reinforcing member and the lifting plate. In this embodiment, the elastic member is an elastic rubber block.

The utility model provides a lifting device for maintaining an oil pumping unit, which comprises the following specific embodiments in part by weight:

in embodiment 1, each screw is provided with a drive motor. In this embodiment, each screw rod is only equipped with one motor, and in order to drive each screw rod to rotate, a chain transmission mechanism or a belt transmission mechanism can be arranged between the adjacent screw rods to transmit power.

Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A lifting device for maintaining an oil pumping unit comprises a base, a lifting plate (1) and a driving mechanism, wherein the base is provided with at least two upright posts (9), one side of each upright post (9) is uniformly provided with a screw rod (7) which is rotatably arranged on the base around an axis extending up and down, and the side surfaces of the upright posts (9) are respectively provided with a sliding chute (6) extending up and down; the lifting plate (1) is provided with a movable sliding block (8) which is in guide movable fit with the sliding groove (6) on each upright post (9), the movable sliding block (8) is sleeved outside the screw rod (7) of each corresponding upright post (9), and the movable sliding block (8) is in threaded fit with the screw rod (7); the driving mechanism is used for driving a screw rod (7) to rotate so as to drive the lifting plate (1) to move up and down; the method is characterized in that: all set firmly the reinforcement on each removes slider (8), the reinforcement arranges in the below of lifter plate (1), all be equipped with the elastic component between each reinforcement and lifter plate (1).

2. The lifting device for maintaining the pumping unit according to claim 1, characterized in that: the elastic part is a pressure spring (11) fixedly arranged between the reinforcing part and the lifting plate (1).

3. The lifting device for maintaining the pumping unit according to claim 2, characterized in that: at least two pressure springs (11) are correspondingly arranged on each reinforcing piece.

4. The lifting device for maintaining the pumping unit according to claim 1, 2 or 3, characterized in that: the reinforcing part is a right-angled triangular block which is provided with a first edge fixed with the movable sliding block (8) and a second edge provided with the elastic part; the first side and the second side are vertically arranged.

5. The lifting device for maintaining the pumping unit according to claim 1, 2 or 3, characterized in that: the driving mechanism comprises a driving motor (4) for driving the screw rod (7) to rotate;

be equipped with support (2) that upwards extends on lifter plate (1), support (2) top is equipped with controller (3), controller (3) with driving motor (4) link to each other, in order to control driving motor (4) are just reversing.

6. The lifting device for maintaining the pumping unit according to claim 1, 2 or 3, characterized in that: the driving mechanism comprises a driving motor (4) for driving the screw rods (7) to rotate, and each screw rod (7) is provided with the driving motor (4);

the top of each upright post (9) is fixedly provided with a connecting plate (5), the driving motor (4) is fixedly arranged on the connecting plate (5), the lower end of the screw rod (7) is rotatably assembled on the base, and the upper end of the screw rod is connected with the corresponding driving motor (4).

7. The lifting device for maintaining the pumping unit according to claim 1, 2 or 3, characterized in that: the bottom of the base is provided with hydraulic support legs (14), and at least three hydraulic support legs (14) are arranged to be matched with the supporting base;

the hydraulic support leg (14) comprises a hydraulic cylinder fixedly arranged on the base and a support plate (15) fixedly arranged at the end part of a piston rod in the hydraulic cylinder.

8. The lifting device for maintaining the pumping unit according to claim 7, wherein: the base is provided with a climbing step (13).

9. The lifting device for maintaining the pumping unit according to claim 7, wherein: the bottom of base is equipped with walking wheel (18), and walking wheel (18) are used for contacting the walking with ground when hydraulic leg (14) retract, and when hydraulic leg (14) stretch out with ground separation.

10. The lifting device for maintaining the pumping unit according to claim 1, 2 or 3, characterized in that: four upright posts (9) are arranged, and the four upright posts (9) are distributed in a rectangular shape.

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