CN214576924U

CN214576924U - Vertical pumping unit with weight box having anti-falling protection device

Info

Publication number: CN214576924U
Application number: CN202120689206.5U
Authority: CN
Inventors: 陈国强; 窦爱民
Original assignee: Xuzhou Feiyuan Machinery Technology Co ltd
Current assignee: Xuzhou Feiyuan Machinery Technology Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-11-02
Anticipated expiration: 2031-04-06

Abstract

The utility model discloses a weight box has vertical beam-pumping unit who prevents weighing down protection device. The device comprises a base, wherein a forward and reverse gear box is arranged on the base, and the output end of the forward and reverse gear box is connected with a driving wheel; two parallel opposite upright columns are fixed on the base, and an upper cross beam is fixed at the upper ends of the upright columns; the upper cross beam is provided with a crown block wheel; the pull rope is respectively connected with the driving wheel, the weight box and the load; anti-falling blocks are respectively fixed on two sides of the weight box; the anti-falling block is in clearance fit with the upright column on the corresponding side. When the stay cord fracture, the weight box takes place the slope, and at this moment at least two prevent weighing down piece and flange board direct contact to produce great frictional force, can not only ensure the weight box and not topple, still maintain original gesture basically, also slowed down the speed and the impact that drop simultaneously greatly, avoid the weight box topples, the weight box is fallen and probably is given the harm that beam-pumping unit, oil well brought, has avoided probably giving the injury that personnel brought on every side.

Description

Vertical pumping unit with weight box having anti-falling protection device

Technical Field

The utility model relates to a vertical beam-pumping unit of oil recovery usefulness in oil mine specifically is a weight box has vertical beam-pumping unit of preventing weighing down protection device.

Background

The oil pumping machine is an important mechanical device in oil exploitation. At present, pumping units used in various oil fields at home and abroad have not only traditional beam pumping units but also various novel non-beam pumping units. Although the traditional beam-pumping unit is durable, the energy consumption is too high, and the traditional beam-pumping unit can not meet the requirements of the modern petroleum industry. The novel non-beam pumping unit such as a vertical pumping unit has inherent structural advantages in overall efficiency compared with the conventional beam pumping unit due to the adoption of a balance type counterweight balance structure, which is particularly important in the current society. The power is also the inherent power for promoting the continuous birth of various non-beam pumping units.

The vertical oil pumping unit has the structural commonality that the weight box is required to be arranged. The weight box is the most key structural part of the oil pumping unit. In the transmission structure, the weight box is generally connected with a dragging device through a flexible part such as a belt or a steel wire rope, and continuously and periodically reciprocates up and down in the working process of the oil pumping unit. Because the working environment of the oil pumping unit is generally very severe, the oil pumping unit is usually in the field and continuously works 24 hours a day no matter in spring, summer, autumn and winter. This places high demands on the flexible parts of the weight box. Namely, the flexible part of the pumping unit needs to meet the working strength and is more durable. However, in view of the actual working conditions in the past, it was not easy for the flexible member to achieve the above-mentioned object, and it was not rare that the belt or the wire rope was broken. Once a belt or a steel wire rope is broken, the weight box in operation can be out of control instantly, and because the weight box is not provided with other protection devices, the out-of-control weight box can be directly overturned or directly fall from the air, so that parts of the oil pumping unit or an oil well are smashed, the safety of surrounding personnel is endangered, and the integral overturning of the oil pumping unit can be caused seriously or even directly, so that a serious safety production accident is formed. Therefore, the weight box of the pumping unit is very necessary to be added with an anti-falling protection device.

Chinese patent discloses a long-stroke direct-drive oil pumping machine (CN 105275434A) with double braking and counterweight fall prevention functions and a fall prevention counterweight box (CN 206553119U). The above-mentioned technologies all disclose a falling prevention structure for a weight box, but the technology has the following disadvantages:

the structure is too complicated, the number of parts is large, the working environment of the pumping unit is generally very severe, and the pumping unit can continuously work for 24 hours a day no matter in spring, summer, autumn and winter, the complicated mechanism is difficult to ensure the use safety, and the maintenance cost and the difficulty are high; the anti-falling structure is started through the elasticity of the spring, so that the anti-falling structure is not easy to check by self, and is difficult to ensure the use safety and has potential safety hazards under long-term use.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a weight box has vertical beam-pumping unit who prevents weighing down protection device.

The utility model discloses a following technical scheme realizes: a vertical oil pumping unit with a weight box provided with an anti-falling protection device comprises a base, wherein a forward and reverse gear box is arranged on the base, and the output end of the forward and reverse gear box is connected with a driving wheel; two parallel opposite upright columns are fixed on the base, and an upper cross beam is fixed at the upper ends of the upright columns; the upper cross beam is provided with a crown block wheel; the pull rope is respectively connected with the driving wheel, the weight box and the load; anti-falling blocks are respectively fixed on two sides of the weight box; the side edge of the anti-falling block is in clearance fit with the upright post on the corresponding side.

It further comprises the following steps: the anti-falling blocks are arranged in pairs on two sides of the weight box.

The anti-falling blocks are 2 groups, 4 groups or 6 groups.

The weight box is positioned between the two upright posts; the side edge of the anti-falling block is provided with a U-shaped groove, the U-shaped groove is buckled on a flange plate of the upright column, and the flange plate of the upright column keeps a certain distance from three surfaces of the U-shaped groove of the anti-falling block.

And a horizontal reinforcing rib is welded between the two upright columns.

The upright post is formed steel with flange plates.

The upright posts are made of H-shaped steel or I-shaped steel or channel steel or angle steel.

The pull rope is a belt or a steel wire rope.

And an inclined pull rod is connected between the upright post and the base.

Compared with the prior art, the beneficial effects of the utility model are that: when the pumping unit normally works, a gap is formed between the anti-falling block on the weight box and the flange plate of the upright post, so that the anti-falling block and the flange plate of the upright post cannot be in direct contact; when the belt or the steel wire rope is broken, the weight box is inclined, at least two anti-falling blocks are in direct contact with the flange plates and generate larger friction force, so that the weight box is not overturned, the original posture is basically maintained, the falling speed and impact are greatly reduced, and the weight box can vertically fall along the direction of the flange plates of the stand column all the time. Therefore, the damage to the pumping unit and the oil well caused by the overturn and the fall of the weight box due to the fracture of the belt or the steel wire rope is completely avoided, and the injury to surrounding personnel is avoided.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a left side view of the present invention;

FIG. 3 is a view taken along line A-A of FIG. 1;

in the figure: the anti-falling device comprises a base 1, a driving wheel 2, a stand column 3, an anti-falling block 4, a crown block wheel 5, an upper cross beam 6, a pull rope 7, an inclined pull rod 8, a forward and reverse gear box 9, a weight box 10 and a horizontal reinforcing rib 11.

Detailed Description

The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.

Referring to fig. 1 and 2, a vertical pumping unit with a weight box having an anti-falling protection device is provided, wherein two upright posts 3 are fixed on a base 1, and the two upright posts 3 are arranged oppositely and in parallel. Horizontal reinforcing ribs 11 are welded between the two upright columns 3, and an inclined pull rod 8 is connected between the upright columns 3 and the base 1, so that the structural strength is ensured. The upright 3 is a profiled bar with flange plates, such as an H-section, an i-section, a channel or an angle. An upper beam 6 is fixed at the upper ends of the two upright posts 3, and a crown block wheel 5 is arranged on the upper beam 6. The forward and reverse rotation gear box 9 is arranged on the base 1, and the driving wheel 2 is arranged at the output end of the forward and reverse rotation gear box 9. The pull rope 7 is respectively connected with the driving wheel 2, the weight box 10 and the load, and the pull rope 7 can be a belt or a steel wire rope. When the forward and reverse gear box 9 rotates, the pull rope 7 is driven by the driving wheel 2 to move up and down, so that oil pumping is realized.

Referring to fig. 3, the anti-falling blocks 4 are fixed to two sides of the weight box 10, and the anti-falling blocks 4 are arranged in pairs on two sides of the weight box 10. According to the size, the weight or the type of the oil pumping unit of the weight box 10, the anti-falling blocks 4 can be arranged into a plurality of groups, such as 2 groups, 4 groups or 6 groups, and the materials are cast iron or steel pieces. The weight box 10 is positioned between the two upright posts 3, the side edge of the anti-falling block 4 is provided with a U-shaped groove, the U-shaped groove is buckled on the flange plates of the upright posts 3, and the flange plates are used as the support plates and the guide plates of the anti-falling device. The width and the depth of the anti-falling block U-shaped groove are determined according to the size of the flange plate of the stand column 3 and the size of the weight box, the flange plate of the stand column 3 keeps a certain distance with three surfaces of the anti-falling block U-shaped groove, and normal lifting of the weight box 10 is not hindered.

The working principle is as follows:

when the pumping unit works normally, the anti-falling block 4 is in clearance with the flange plate, cannot be in direct contact with the flange plate and does not interfere with the normal lifting of the weight box 10;

when the belt or the steel wire rope of the oil pumping unit breaks, no matter the belt or the steel wire rope on one side breaks first and then the belt or the steel wire rope on the other side also breaks, or the belts or the steel wire ropes on the two sides break, the weight box can lose balance instantly, and the oil pumping unit inclines left and right or inclines front and back and can directly fall off at a possible high altitude; at the moment, the anti-falling protection device starts to play a role;

when the weight box 10 is inclined, at least two anti-falling blocks 4 are in direct contact with the flange plates and generate larger friction force. This not only ensures that the weight box 10 cannot tip over, substantially maintaining its original attitude, but also greatly slows the rate and impact of the drop and enables it to fall vertically all the way down the column flange plate. Therefore, the damage to the pumping unit and the oil well caused by the overturn and the fall of the weight box due to the fracture of the belt or the steel wire rope is completely avoided, and the injury to surrounding personnel is avoided.

The utility model discloses a vertical structure, weight box design have prevent weighing down protection device, can effectively avoid because the flexible piece destroys harm or the security threat that probably brings for beam-pumping unit or personnel on every side. The method has very important significance for the safety production of the oil field, and is an ideal machine type with wide application prospect.

Claims

1. A vertical oil pumping unit with a weight box provided with an anti-falling protection device comprises a base (1), wherein a forward and reverse gear box (9) is arranged on the base (1), and the output end of the forward and reverse gear box (9) is connected with a driving wheel (2); the method is characterized in that: two parallel and opposite upright posts (3) are fixed on the base (1), and an upper cross beam (6) is fixed at the upper ends of the upright posts (3); the upper cross beam (6) is provided with a crown wheel (5); the pull rope (7) is respectively connected with the driving wheel (2), the weight box (10) and the load; anti-falling blocks (4) are respectively fixed on two sides of the weight box (10); the side edge of the anti-falling block (4) is in clearance fit with the upright post (3) on the corresponding side.

2. The vertical pumping unit with the weight box provided with the anti-falling protection device according to claim 1, is characterized in that: the anti-falling blocks (4) are arranged in pairs on two sides of the weight box (10).

3. The vertical pumping unit with the weight box provided with the anti-falling protection device according to claim 1, is characterized in that: the anti-falling blocks (4) are 2 groups, 4 groups or 6 groups in total.

4. The vertical pumping unit with the weight box provided with the anti-falling protection device according to claim 1, is characterized in that: the weight box (10) is positioned between the two upright posts (3); the side edge of the anti-falling block (4) is provided with a U-shaped groove, the U-shaped groove is buckled on a flange plate of the upright post (3), and the flange plate of the upright post (3) keeps a certain distance from three surfaces of the U-shaped groove of the anti-falling block (4).

5. The vertical pumping unit with the weight box provided with the anti-falling protection device according to claim 1, is characterized in that: and a horizontal reinforcing rib (11) is welded between the two upright columns (3).

6. The vertical pumping unit with the weight box provided with the anti-falling protection device according to claim 1, is characterized in that: the upright posts (3) are profile steels with flange plates.

7. The vertical pumping unit with the weight box provided with the anti-falling protection device according to claim 6, characterized in that: the upright posts (3) are H-shaped steel or I-shaped steel or channel steel or angle steel.

8. The vertical pumping unit with the weight box provided with the anti-falling protection device according to claim 1, is characterized in that: the pull rope (7) adopts a belt or a steel wire rope.

9. The vertical pumping unit with the weight box provided with the anti-falling protection device according to claim 1, is characterized in that: and an inclined pull rod (8) is connected between the upright post (3) and the base (1).