Belt type pumping unit base

Abstract

The utility model relates to a belt type oil pumping unit, and discloses a belt type oil pumping unit base which comprises a rectangular frame, bearing mechanisms are correspondingly arranged at the four corners of the frame, and supporting mechanisms used for driving the two bearing mechanisms on the same side to unfold are arranged in the middles of the two sides of the frame respectively. A group of bearing wheels are arranged at the bottom of the bearing mechanism; the four sets of supporting mechanisms are unfolded synchronously, the four sets of bearing wheels make contact with a cement foundation, a frame of the belt type oil pumping unit is lifted away from the ground, and therefore the belt type oil pumping unit can stably move in the front-back advancing direction more conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt type pumping unit, in particular to a belt type pumping unit base. BACKGROUND

[0002] When maintaining or repairing the wellhead using the belt type pumping unit, the belt type pumping unit needs to be moved a certain distance to leave the repair space because the belt type pumping unit is very close to the wellhead.

[0003] When moving the belt type pumping unit, the lifting counterweight of the belt type pumping unit is first dismounted, then the fixing bolt between the frame base of the belt type pumping unit and the cement foundation is dismounted, and then the belt type pumping unit is moved by using a tractor. This moving mode causes hard friction between the frame base and the cement foundation, which can cause a certain abrasion at the bottom of the frame base. In addition, because the leaving and resetting are in hard friction, the front and back moving directions of the frame base cannot be guaranteed to be consistent, so the position of the frame base needs to be constantly adjusted to return to the original position when resetting and installing. SUMMARY

[0004] The utility model aims at the defects of the prior art and provides a belt type pumping unit base. Four groups of supporting mechanisms are synchronously unfolded to make the four groups of load-bearing wheels contact the cement foundation and lift the frame of the belt type pumping unit from the ground, so that the belt type pumping unit can be more stably moved along the front and back moving directions.

[0005] The technical scheme of the utility model is: a belt type pumping unit base, which comprises a rectangular frame. Corresponding load-bearing mechanisms are arranged at four corners of the frame, and supporting mechanisms for driving two load-bearing mechanisms on the same side of the frame to unfold are arranged on the middle of the two sides of the frame.

[0006] The load-bearing mechanism comprises a vertical plate arranged outside the frame. A group of load-bearing wheels are arranged at the bottom of the vertical plate. Two ends of the vertical plate are respectively hinged with connecting rods. The free ends of the connecting rods are hinged with the frame, and the connecting rods, the vertical plate and the frame form a parallelogram four-bar linkage structure. The connecting rods of the two groups of load-bearing mechanisms on the same side of the frame are symmetrically distributed in an inverted V shape.

[0007] The supporting mechanism comprises a hydraulic cylinder arranged vertically on the frame. The moving end of the hydraulic cylinder faces downward and is fixedly connected with a cross beam. Two ends of the cross beam are respectively provided with rollers, and the two rollers are respectively in rolling contact with the outer side walls of the connecting rods of the adjacent load-bearing mechanisms.

[0008] Preferably, the top of the connecting rod is hinged with the frame through an axle seat.

[0009] Preferably, the hydraulic cylinder is connected with the frame through an inverted L-shaped support plate, the longitudinal end bottom of the inverted L-shaped support plate is fixedly connected with the top of the frame, and the transverse end bottom of the inverted L-shaped support plate is fixedly connected with the top of the hydraulic cylinder.

[0010] Preferably, the front and rear ends of the frame are respectively provided with traction ear seats.

[0011] Compared with the prior art, the utility model has the following advantages: the utility model discloses four groups of supporting mechanisms are synchronous, four groups of bearing wheels are in contact with the cement foundation, and the frame of the belt type oil pumping machine can be lifted off the ground.

[0012] Compared with the prior art, the utility model has the following advantages: the utility model discloses four groups of supporting mechanisms are synchronous, four groups of bearing wheels are in contact with the cement foundation, and the frame of the belt type oil pumping machine can be lifted off the ground. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structural schematic view of the utility model;

[0014] Fig. 2 It is a structural schematic view of the bearing mechanism;

[0015] Fig. 3 It is a structural schematic view of the supporting mechanism;

[0016] In the drawing: 1, frame, 2, supporting mechanism, 3, bearing mechanism, 4, traction ear seat, 5, shaft seat, 6, connecting rod, 7, vertical plate, 8, bearing wheel, 9, inverted L-shaped support plate, 10, hydraulic cylinder, 11, crossbeam, 12, roller. DETAILED DESCRIPTION

[0017] The utility model is further illustrated below in combination with the drawings and embodiments. Embodiment 1

[0018] As Figs. 1-3 A belt type oil pumping machine base, including the frame 1 of rectangle, the four corners of frame 1 are correspondingly provided with bearing mechanism 3, and the middle part of both sides of frame 1 is provided with the supporting mechanism 2 for driving the two bearing mechanisms 3 of the same side to unfold downwards respectively.

[0019] Among them, bearing mechanism 3 includes vertical plate 7 located at the outside of frame 1, the bottom of vertical plate 7 is provided with a group of bearing wheels 8, and the both ends of vertical plate 7 are respectively hinged with connecting rod 6, and the top free end of each connecting rod 6 is hinged with frame 1 through shaft seat 5.

[0020] As Fig. 1 And Fig. 2As shown, the two connecting rods 6, the vertical plate 7 and the frame 1 of the bearing mechanism 3 form a parallelogram four-bar linkage structure, which can move the vertical plate 7 with the bearing wheel 8 horizontally and downward, and the connecting rods 6 of the bearing mechanism 3 on the same side of the frame 1 are symmetrically distributed in an inverted eight shape.

[0021] In addition, the support mechanism 2 includes a hydraulic cylinder 10 fixedly installed on the frame 1 in a vertical arrangement, which can be selected as a jack, which is convenient for assembly and does not need to be configured with a hydraulic pump drive.

[0022] The moving end of the hydraulic cylinder 10 is downward, and a cross beam 11 is fixedly connected. The two ends of the cross beam 11 are respectively provided with rollers 12, and the two rollers 12 are respectively in rolling contact with the outer side walls of the connecting rods 6 of the adjacent bearing mechanisms 3.

[0023] Working principle: when moving the belt type pumping unit, first, the connecting bolts of the frame 1 and the cement foundation are disassembled, then the two hydraulic cylinders 10 are started to synchronously extend to make the cross beam 11 descend, the rollers 12 at the two ends of the cross beam 11 push the two connecting rods 6 in contact to rotate, thereby driving the four sets of support mechanisms 2 to synchronously expand, so that the four sets of bearing wheels 8 contact the cement foundation, and the frame 1 of the belt type pumping unit is lifted off the ground.

[0024] Through the rolling contact of the liftable multiple sets of bearing wheels 8 with the cement foundation, compared with the previous hard frictional movement of the frame 1 of the belt type pumping unit with the cement foundation, on the one hand, the movement is more smooth and convenient, and on the other hand, the guidance of the multiple bearing wheels 8 can keep the forward and backward directions of the belt type pumping unit consistent, which is more convenient for installation

[0025] In addition, by adopting the rolling contact mode of the bearing wheel 8 with the cement foundation, the belt type pumping unit with most of the lifting counterweights unloaded can be moved by artificial pushing, so that the moving operation is more convenient. Embodiment 2

[0026] This embodiment is further optimized on the basis of the above embodiment, specifically:

[0027] As shown in FIGS. 1 and 3, the hydraulic cylinder 10 is connected with the frame 1 through the inverted L-shaped support plate 9, the longitudinal end bottom of the inverted L-shaped support plate 9 is fixedly connected with the top of the frame 1, and the transverse end bottom of the inverted L-shaped support plate 9 is fixedly connected with the top of the hydraulic cylinder 10.

[0028] In addition, after part of the belt type pumping unit is unloaded with the lifting counterweight, it is also relatively heavy to move by artificial pushing, so the frame 1 of this type of belt type pumping unit is respectively welded with a traction lug 4 at the front and rear ends, which is convenient for connection with a tractor through the traction lug 4, and the tractor is used to pull the relatively heavy belt type pumping unit.

[0029] The utility model is not limited to the above-mentioned implementation, within the knowledge range of the person skilled in the art, still can make various changes under the premise of not departing from the utility model's purpose, the changed content still belongs to the protection range of the utility model.

Claims

1. A belt-driven oil pump base, comprising a rectangular frame, characterized in that: The frame is provided with a bearing mechanism at each of its four corners, and a support mechanism is provided in the middle of each of its two sides for driving the two bearing mechanisms on the same side to unfold. The load-bearing mechanism includes an upright plate located on the outside of the frame. A set of load-bearing wheels is provided at the bottom of the upright plate. Connecting rods are respectively hinged at both ends of the upright plate. The free ends of the connecting rods are hinged to the frame. The connecting rods, the upright plate, and the frame form a parallelogram four-bar structure. The connecting rods of the two sets of load-bearing mechanisms on the same side of the frame are symmetrically distributed in an inverted V-shape. The support mechanism includes a hydraulic cylinder fixedly mounted on the frame and arranged vertically. The moving end of the hydraulic cylinder faces downward and is fixedly connected to a crossbeam. Rollers are provided at both ends of the crossbeam, and the two rollers respectively roll in contact with the outer wall of the connecting rod of the adjacent bearing mechanism.

2. The belt-driven oil pump base according to claim 1, characterized in that: The top of the connecting rod is hinged to the frame via a bearing.

3. The belt-driven oil pump base according to claim 1, characterized in that: The hydraulic cylinder is connected to the frame via an inverted L-shaped support plate. The bottom of the longitudinal end of the inverted L-shaped support plate is fixedly connected to the top of the frame, and the bottom of the transverse end of the inverted L-shaped support plate is fixedly connected to the top of the hydraulic cylinder.

4. The belt-driven oil pump base according to claim 1, characterized in that: The frame is provided with traction ear seats at both the front and rear ends.

Images