CN206957600U - A height adjustment device for driving rope of pumping unit - Google Patents

Abstract

The utility model discloses a height adjusting device of beam-pumping unit driving rope belongs to oil field machinery. The device includes: the rear side wall of the base is vertically arranged on the oil pumping unit horse head, and a slide rail is arranged on the front side wall of the base along the vertical direction; the baffle is connected with the lower end of the base; the sliding block can axially slide along the sliding rail, a driving rope suspension groove with an upward opening is formed in the front side wall of the sliding block, and an internal threaded hole is formed in the middle of the sliding block in the axial direction; the jackscrew is adjusted, and the screw thread passes through the internal thread hole with the transmission to the lower extreme offsets with the baffle. The device has the characteristics of simple adjusting mode, time and labor conservation, high adjusting precision and the like.

Description

A height adjustment device for driving rope of pumping unit

technical field

The utility model relates to the field of oilfield machinery, in particular to a height adjusting device for driving ropes of an oil pumping unit.

Background technique

The main equipment in oil field exploitation is the beam pumping unit. The donkey head of the beam pumping unit is equipped with a driving rope (commonly known as "braid") through the suspension plate, and the lower end of the driving rope is connected with a suspension rope. device, the suspension device is connected with the light rod. When the pumping unit is running, the donkey head drives the rope hanger to move up and down through the driving rope, and then the polished rod drives the downhole oil pump to reciprocate up and down to lift the oil to the ground. During the operation of the pumping unit, the annular gap between the polished rod and the casing is sealed by the packing box arranged at the wellhead. However, as the oil reservoir is exploited, the formation sinks, and the casing of the oil layer goes up, causing the packing box at the wellhead to rise, but the length of the driving rope remains unchanged. When the rope hanger moves downward, it is easy to contact with the coil The root box collided, and the driving rope could not be tightened, causing the pumping unit to run without load, which would affect the normal operation of the pumping unit. Therefore, it is necessary to provide a device or method for adjusting the length or height of the driving rope of the pumping unit.

The prior art provides a device for adjusting the length of the driving rope of the pumping unit, which is a square clip. The middle part of the driving rope is hung on the donkey head of the pumping unit through the suspension plate, and the two ends are fixed in the through holes on both sides of the rope hanger. When the packing box is raised, the excess length of the drive rope is extended from the through holes on both sides of the rope hanger to the lower end of the rope hanger, and the excess length of the drive rope is clamped together by the square clip to adjust the length of the drive rope.

The designer finds that the prior art has at least the following problems:

It is cumbersome to adjust the length of the drive rope with square clips. Every time you adjust, you need to remove the square clip, readjust the length of the drive rope, and then use the square clip to clamp the excess length of the drive rope under the rope hanger. , time-consuming and laborious, and the adjustment is imprecise.

Utility model content

In order to solve the problems of the prior art, the embodiment of the utility model provides a height adjustment device for the driving rope of the pumping unit which is convenient to adjust, saves time and effort, and can be adjusted accurately. Described technical scheme is as follows:

The embodiment of the utility model provides a height adjustment device for the driving rope of the pumping unit. The device includes: a base whose rear side wall is vertically arranged on the donkey head of the pumping unit. A slide rail is arranged in a vertical direction; a baffle plate is connected to the lower end of the base; a slide block that can slide axially along the slide rail, and a drive rope suspension groove with an opening facing upward is provided on the front side wall of the slide block , the middle part of the slider is provided with an internally threaded hole in the axial direction; the adjusting top screw passes through the internally threaded hole in a screw driving manner, and the lower end is against the baffle plate.

Specifically, preferably, the base has a square flat tube structure; the middle part of the front side wall of the base is provided with an open groove that runs through both ends and communicates with the inner cavity of the base, and the side walls on both sides of the open groove serve as the rails.

Specifically, as a preference, the slider includes: a slider body, a suspension body arranged on the front side wall of the slider body; the slider body has a square block structure; the left side of the slider body 1. A chute is arranged on the right side wall oppositely, and the chute is slidably sleeved on the slide rail; the middle part of the slider body is provided with the internal thread hole in the axial direction; the suspension body The driving rope suspension groove is formed between the slider body and the slider body.

Specifically, preferably, the suspension body includes: an arc-shaped block and a plate-shaped connecting body; the rear side wall of the arc-shaped block is connected to the front side wall of the plate-shaped connecting body, and the plate-shaped connecting body The rear side wall of the body is connected with the front side wall of the slider body.

Specifically, preferably, the suspension body includes: a vertical plate and a horizontal plate; one end of the horizontal plate is vertically connected to the lower part of the front side wall of the slider body, and the other end is vertically connected to the vertical plate.

Specifically, preferably, the adjusting screw includes: a screw, and a nut provided on the top of the screw; the screw passes through the internally threaded hole, and the end thereof abuts against the baffle.

Specifically, preferably, the nut has a regular hexagonal structure.

Specifically, preferably, a blind hole is provided on the top wall of the baffle; the end of the screw rod is rotatably arranged in the blind hole.

Specifically, as a preference, two slots are arranged symmetrically along the vertical direction on the front side wall of the baffle, and the slots are used for accommodating the driving rope.

The beneficial effects brought by the technical solution provided by the embodiment of the utility model are:

The height adjustment device for the driving rope of the pumping unit provided by the embodiment of the utility model, by hanging the driving rope in the driving rope hanging groove on the front side wall of the slider, and rotating and adjusting the top wire, the slider is driven in the form of thread transmission Slide up and down on the slide rail to adjust the height of the driving rope and the rope hanger to avoid collision between the rope hanger and the packing box. The adjustment method is simple, and the height of the driving rope can be adjusted accurately, time-saving and labor-saving by means of screw transmission. It can be seen that the height adjustment device for the driving rope of the pumping unit provided by the embodiment of the utility model has the characteristics of simple adjustment method, time saving and labor saving, and high adjustment accuracy.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is the height adjustment device of the driving rope of the pumping unit provided by the embodiment of the present invention;

Fig. 2 is the first structural schematic diagram of the suspension body provided by the embodiment of the present invention;

Fig. 3 is a schematic diagram of the second structure of the suspension body provided by the embodiment of the present invention.

Wherein, the reference signs represent respectively:

1 base,

101 slide rail,

2 baffles,

201 card slot,

3 sliders,

301 Drive Rope Hanging Groove,

302 internally threaded hole,

303 slider body,

304 suspended body,

3041a curved blocks,

3042a plate connector,

3041b Vertical panels,

3042b Horizontal plate,

4 Adjust the top wire,

401 screw,

402 Nut.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

The embodiment of the utility model provides a height adjustment device for a driving rope of a pumping unit. As shown in the accompanying drawing 1 , the device includes: a base 1 , a baffle plate 2 , a slider 3 , and an adjustment top wire 4 . Wherein, the rear side wall of the base 1 is vertically arranged on the donkey head of the pumping unit, and the front side wall of the base 1 is provided with a slide rail 101 along the vertical direction. The baffle plate 2 is connected with the lower end of the base 1 . The slider 3 can slide along the axial direction of the slide rail 101 , the front side wall of the slider 3 is provided with a driving rope hanging groove 301 with an opening facing upward, and the middle part of the slider 3 is provided with an internal threaded hole 302 along the axial direction. The adjusting top screw 4 passes through the internal threaded hole 302 in a threaded manner, and the lower end is against the baffle plate 2 .

The working principle of the height adjustment device for the driving rope of the pumping unit provided by the embodiment of the utility model is described below:

When using this device, first fix the rear side wall of the base 1 on the donkey head of the oil pumping machine in the vertical direction, and hang the middle part of the driving rope in the driving rope hanging groove 301 with the opening facing upwards, and then put the driving rope The two ends are fixedly connected with the rope hanger. Since the slider 3 can slide in the axial direction of the slide rail 101, the adjusting screw 4 passes through the inner threaded hole 302 provided in the axial direction in the middle of the slider 3 in a threaded manner, and the lower end is against the baffle plate 2, so the adjusting jack can be rotated When the screw 4 is used, the top screw 4 is adjusted to drive the slide block 3 to slide axially along the slide rail 101 in the form of screw transmission, that is, to slide up and down, so as to drive the drive rope suspended in the drive rope suspension groove 301 to move up and down, and then change the drive rope. Height from the rope hanger. When the height of the driving rope is adjusted to the preset position, stop the rotation and adjust the top wire 4, the slide block 3 stops sliding, and the height of the driving rope and the rope hanger will remain unchanged.

It should be noted that when the rotation of the adjusting jackscrew 4 is stopped, the slider 3 , the slide rail 101 , and the adjusting jackscrew 4 are fixed by friction.

The height adjustment device for the driving rope of the pumping unit provided by the embodiment of the utility model, by hanging the driving rope in the driving rope hanging groove 301 on the front side wall of the slider 3, and rotating and adjusting the jacking wire 4, in the form of screw transmission The driving slider 3 slides up and down on the slide rail 101, thereby adjusting the height of the driving rope and the rope hanger to avoid collision between the rope hanger and the packing box. The adjustment method is simple, and the height of the driving rope can be adjusted accurately, time-saving and labor-saving by means of screw transmission. It can be seen that the height adjustment device for the driving rope of the pumping unit provided by the embodiment of the utility model has the characteristics of simple adjustment method, time saving and labor saving, and high adjustment accuracy.

In the embodiment of the present utility model, the base 1 can be set in various structures, and on the premise that the slide rail 101 is easy to be set, the following specific examples are given:

As shown in Figure 1, the base 1 has a square flat tube structure; the middle part of the front side wall of the base 1 is provided with an open groove that runs through both ends and communicates with the inner cavity of the base 1, and the side walls on both sides of the open groove serve as slide rails 101.

The structure of the base 1 and the slide rail 101 is simple, easy to install, and reduces the manufacturing cost.

The slide rail 101 having the above structure can slide the slider 3 having a different structure thereon. As preferably, as shown in accompanying drawing 1, slider 3 comprises: slider body 303, the suspension body 304 that is arranged on the front side wall of slider body 303; Slider body 303 is square block structure; Slider body 303 The left and right side walls of the left and right side walls are oppositely provided with chute, and the chute is slidably sleeved on the slide rail 101; the middle part of the slider body 303 is provided with an internal threaded hole 302 in the axial direction; the suspension body 304 and the slider body 303 form a driving rope suspension groove 301 .

The slider 3 with the above structure is easy to install, and it is convenient to slide on the slide rail 101 and hang the driving rope.

Specifically, the slide grooves on the left and right side walls of the slider 3 are sleeved on the side walls on both sides of the opening groove, and the top wire 4 is adjusted by rotating the top wire 4 to drive the slider 3 to move up and down in a threaded manner. , the driving rope hung between the suspension body 304 and the front side wall of the slider 3 body moves up and down with the slider 3, thereby adjusting the height of the driving rope and the rope hanger.

There are various structures of the suspension body 304. On the premise of simple structure and easy installation, the following two specific examples are given:

As a first example: as shown in Figure 2, the suspension body 304 includes: an arc-shaped block 3041a and a plate-shaped connecting body 3042a; the rear side wall of the arc-shaped block 3041a is connected to the front side wall of the plate-shaped connecting body 3042a , the rear side wall of the plate-shaped connecting body 3042a is connected to the front side wall of the slider body 303 .

It should be noted that the outwardly protruding arc-shaped end of the arc-shaped block 3041a is located at the top.

The structure of the suspension body 304 is arranged in such a way that the driving rope suspension groove 301 is formed between the arc-shaped block body 3041a, the plate-shaped connecting body 3042a, and the front side wall of the slider body 303, and the arrangement of the arc-shaped block body 3041a can prevent the operator from Scratches your fingers while hanging the drive rope.

As a second example: as shown in Figure 3, the suspension body 304 includes: a vertical plate 3041b and a horizontal plate 3042b; one end of the horizontal plate 3042b is vertically connected to the lower part of the front side wall of the slider body 303, and the other end is connected to the vertical The plates 3041b are connected vertically.

The structure of the suspension body 304 is set in this way, so that the driving rope suspension groove 301 is formed between the vertical plate 3041b, the horizontal plate 3042b, and the front side wall of the slider body 303. The structure of the suspension body 304 is simple and easy to install.

In the above two examples, in order to make the connection force between the suspension body 304 and the slider body 303 firm, the two are connected by welding.

As shown in FIG. 1 , the adjusting screw 4 includes: a screw 401 , and a nut 402 arranged on the top of the screw 401 ;

The structure of adjusting the top screw 4 is arranged in this way, so that the screw rod 401 can be rotated by the control nut 402 , and when the slider 3 slides upward, the nut 402 can be used to limit the position of the slider 3 to prevent the slider 3 from detaching from the adjustment top screw 4 .

Wherein, the nut 402 has a regular hexagonal structure, so that the operator can use a tool such as a wrench to give the force to adjust the rotation of the top screw 4 .

When adjusting and adjusting the jacking screw 4, in order to avoid the shaking of the adjusting jacking screw 4, a blind hole is provided on the top wall of the baffle plate 2; the end of the screw rod 401 is rotatably arranged in the blind hole.

In order to prevent the driving rope from detaching from the driving rope suspension groove 301 under the action of external force (such as wind force), two slots 201 are symmetrically arranged on the front side wall of the baffle plate 2 along the vertical direction, and the locking grooves 201 are used to accommodate the driving rope.

Wherein, the slot 201 is in an arc shape, and the width of the opening of the slot 201 is smaller than the maximum width of the inner cavity.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (9)

1. A height adjustment device for driving rope of a pumping unit, characterized in that the device comprises: a base (1) whose rear side wall is vertically arranged on the donkey head of the pumping unit, and the front of the base (1) Slide rails (101) are arranged vertically on the side walls; Baffle (2), connected to the lower end of the base (1); A slide block (3) that can slide axially along the slide rail (101), the front side wall of the slide block (3) is provided with an upward driving rope suspension groove (301), the slide block ( 3) The middle part is provided with an internally threaded hole (302) along the axial direction; The jack screw (4) is adjusted to pass through the internal threaded hole (302) in a threaded manner, and the lower end is against the baffle plate (2). 2. The device according to claim 1, characterized in that, the base (1) is a square flat tube structure; The middle part of the front side wall of the base (1) is provided with an open groove that runs through both ends and communicates with the inner cavity of the base (1), and the side walls on both sides of the open groove serve as the slide rails (101). 3. The device according to claim 2, characterized in that, the slider (3) comprises: a slider body (303), a suspension body ( 304); The slider body (303) has a square block structure; The left and right side walls of the slider body (303) are oppositely provided with slide grooves, and the slide grooves are slidably sleeved on the slide rail (101); The middle part of the slider body (303) is provided with the internal threaded hole (302) along the axial direction; The driving rope suspension groove (301) is formed between the suspension body (304) and the slider body (303). 4. The device according to claim 3, characterized in that, the suspension body (304) comprises: an arc-shaped block (3041a) and a plate-shaped connecting body (3042a); The rear side wall of the arc-shaped block (3041a) is connected to the front side wall of the plate-shaped connecting body (3042a), and the rear side wall of the plate-shaped connecting body (3042a) is connected to the slider body (303 ) front side wall connection. 5. The device according to claim 3, characterized in that, the suspension body (304) comprises: a vertical plate (3041b) and a horizontal plate (3042b); One end of the horizontal plate (3042b) is vertically connected to the lower part of the front side wall of the slider body (303), and the other end is vertically connected to the vertical plate (3041b). 6. The device according to claim 3, characterized in that, the adjusting jackscrew (4) comprises: a screw (401), a nut (402) arranged on the top of the screw (401); The screw (401) penetrates into the internally threaded hole (302), and its end is against the baffle (2). 7. The device according to claim 6, characterized in that, the nut (402) has a regular hexagonal structure. 8. The device according to claim 6, characterized in that, the top wall of the baffle (2) is provided with a blind hole; The end of the screw (401) is rotatably arranged in the blind hole. 9. The device according to claim 1, characterized in that two draw-in slots (201) are arranged symmetrically along the vertical direction on the front side wall of the baffle plate (2), and the draw-in slots (201) are used for To accommodate the drive rope.