CN211277308U

CN211277308U - Drawing device suitable for big belt pulley of beam-pumping unit is dismantled

Info

Publication number: CN211277308U
Application number: CN201922363780.7U
Authority: CN
Inventors: 侍孝军; 贺斌; 刘承慧; 朱利兵; 李元慧; 彭江涛; 周军峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-18
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to a draw-off gear suitable for big belt pulley of beam-pumping unit is dismantled belongs to beam-pumping unit maintenance of equipment technical field. The drawing device suitable for disassembling the large belt pulley of the oil pumping unit comprises a rack, an adjusting screw rod, a sliding plate, a loader, a drawing oil cylinder, a pressing block and a supporting screw rod; a sliding plate is arranged on the frame in a sliding way through a sliding chute; an adjusting screw rod is fixedly arranged at the upper end of the sliding plate; a loader is fixedly arranged on the end face of the sliding plate; the middle part of one end of the loader is provided with a drawing oil cylinder; support screws are symmetrically clamped on the carriers on the two sides of the drawing oil cylinder; two end heads of the supporting screw rod are respectively in threaded connection with a locking nut; the support screw is movably sleeved with a pressing block. The drawing device is compact in structure and ingenious in design, effectively solves the problems that when a puller is used for disassembling the large belt pulley, the labor intensity is high and workpieces are easy to damage, and meets the use requirements of safe and efficient disassembly of the large belt pulley of the oil pumping unit.

Description

Drawing device suitable for big belt pulley of beam-pumping unit is dismantled

Technical Field

The utility model relates to a draw-off gear suitable for big belt pulley of beam-pumping unit is dismantled belongs to beam-pumping unit maintenance of equipment technical field.

Background

The oil pumping machine is commonly called as a 'head knocking machine', and is a mechanical device applied to oil exploitation. The pumping unit is used for power transmission through a speed reducer, and a large belt pulley is arranged on the speed reducer. The large belt pulley of the existing pumping unit speed reducer is basically formed by casting cast iron and consists of an inner ring 1, an outer ring 2 and connecting ribs 3 (see the attached figure 1 of the specification); the inner ring 1 and the outer ring 2 are concentrically arranged; a plurality of connecting ribs 3 are arranged between the inner ring 1 and the outer ring 2 in a divergent manner. The connecting rib 3 is a long rod-shaped structure with an arc-shaped outer surface. Large pulleys typically have the characteristics of being heavily rusted and difficult to remove, since they are required to operate in a field environment for a long period of time. At present, in the process of overhauling the speed reducer and the large belt pulley, the large belt pulley is usually disassembled from the speed reducer by using a puller. The existing puller is a three-jaw structure as disclosed in the publication No. CN209466198U, and the puller directly acts on the inner end face of a large belt pulley through the pulling jaw during working, and because the pulling jaw has the characteristics of small stress area and serious corrosion and larger brittleness of the large belt pulley, the puller is easy to break and damage the large belt pulley when being used for disassembling the large belt pulley. In addition, in order to cooperate with the puller to work, the defect that the stress area of the puller is small is overcome, the large belt pulley is often knocked manually when being disassembled, so that the requirement for disassembling and using the large belt pulley is met, the problem of high labor intensity is solved, and the construction requirement cannot be met. Therefore, a drawing device specially designed for the large belt pulley of the pumping unit needs to be developed, so that the problems that the labor intensity is high and workpieces are easy to damage in the existing dismounting mode of the large belt pulley of the pumping unit are solved.

Disclosure of Invention

The utility model aims to provide a: the drawing device suitable for the disassembly of the large belt pulley of the pumping unit is compact in structure and ingenious in design, and solves the problems that the labor intensity is high and workpieces are easy to damage in the conventional disassembly mode of the large belt pulley of the pumping unit.

The technical scheme of the utility model is that:

a drawing device suitable for disassembling a large belt pulley of an oil pumping unit comprises a frame, an adjusting screw rod, a sliding plate, a loader, a drawing oil cylinder, a pressing block and a supporting screw rod; the method is characterized in that: a sliding plate is arranged on the frame in a sliding way through a sliding chute; an adjusting screw rod is fixedly arranged at the upper end of the sliding plate; the adjusting screw rod extends to the upper end of the rack and is in threaded connection with a screw rod sleeve movably arranged on the rack; a loader is fixedly arranged on the end face of the sliding plate; the middle part of one end of the loader is provided with a drawing oil cylinder; support screws are symmetrically clamped on the carriers on the two sides of the drawing oil cylinder; two end heads of the supporting screw rod are respectively in threaded connection with a locking nut; the support screw is movably sleeved with a pressing block.

The frame consists of a base, a door-shaped frame and a supporting wheel; a plurality of supporting wheels are symmetrically arranged below the base; a door-shaped frame is welded at the position above the base and close to the rear side; the lower end of the door-shaped frame is connected with the base through symmetrically arranged tie bars; the inner side of the door-shaped frame is symmetrically provided with sliding chutes.

Guide rollers are symmetrically arranged on two sides of the sliding plate; the sliding plate is connected with the sliding groove in a rolling way through the guide roller.

The loader is composed of a connecting plate, a loading vertical plate and a supporting plate; the rear end face of the bearing vertical plate is welded with a connecting plate; the connecting plate is fixedly connected with the sliding plate through a bolt; the two sides of the bearing vertical plate are symmetrically provided with bearing bayonets; the bearing bayonet is connected with the supporting screw in a clamping way; the middle part of the front end face of the bearing vertical plate is welded with a supporting plate.

The supporting plate is of a long plate type structure with a V-shaped section.

The pressing block is of a rectangular structure; the middle part of the pressing block is provided with a mounting hole; the pressing block is movably arranged on the supporting screw rod through the mounting hole; arc-shaped pressure grooves are symmetrically arranged on two sides of the mounting hole.

The utility model has the advantages that:

this draw-off gear suitable for big belt pulley of beam-pumping unit is dismantled, compact structure, design benefit need not the manual work and strikes during operation, can dismantle big belt pulley through the briquetting that the symmetry form set up. Because the briquetting has the characteristics that the area of atress is big and the atress is balanced, so it can effectively solve the problem that the intensity of labour that has when using the puller to dismantle big belt pulley is big and the easy damage work piece, has satisfied the user demand that big belt pulley of beam-pumping unit was safely, high-efficient dismantlement.

Drawings

FIG. 1 is a schematic structural view of a large belt pulley of the pumping unit;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure in the direction B-B in FIG. 2;

fig. 4 is a schematic structural view of the carrier of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 2 in the direction A-A;

fig. 6 is a schematic structural diagram of the pressing block of the present invention.

In the figure: 1. inner circle, 2, outer circle, 3, connecting rib, 4, frame, 5, adjusting screw rod, 6, sliding plate, 7, carrier, 8, drawing oil cylinder, 9, pressing block, 10, supporting screw rod, 11, sliding chute, 12, screw rod sleeve, 13, locking nut, 14, base, 15, door-shaped frame, 16, supporting wheel, 17, drawing rib, 18, guide roller, 19, connecting plate, 20, bearing vertical plate, 21, supporting plate, 22, bearing bayonet, 23, mounting hole, 24, arc indent, 25, handle.

Detailed Description

The drawing device suitable for disassembling the large belt pulley of the oil pumping unit comprises a frame 4, an adjusting screw rod 5, a sliding plate 6, a loader 7, a drawing oil cylinder 8, a pressing block 9 and a supporting screw rod 10 (see the attached figure 2 in the specification).

The frame 4 is composed of a base 14, a gantry 15 and support wheels 16 (see fig. 2 and 3 of the specification). A plurality of supporting wheels 16 are symmetrically arranged below the base 14; the support wheels 16 are provided for the purpose of: so that the movement of the frame 4 is enhanced by the support wheels 16, thereby allowing a person to easily move the frame 4 during work.

A door-shaped frame 15 is welded at the position above the base 14 and close to the rear side; during operation, the main part carrier 7 and the drawing oil cylinder 8 of the drawing device are positioned at the front end of the door-shaped frame 15, so that the stability of the drawing device can be enhanced after the door-shaped frame 15 is arranged at the rear position of the base 14, and the problem that the gravity center of the drawing device is unstable is avoided.

The lower end of the door-shaped frame 15 is connected with the base 14 through symmetrically arranged tie bars 17; the purpose of setting up lacing wire 17 lies in: so as to strengthen the connection strength between the door frame 15 and the base 14, thereby avoiding the problem that the door frame 15 is broken due to insufficient connection strength.

The inner side of the door-shaped frame 15 is symmetrically provided with sliding chutes 11 (see the attached figure 3 in the specification). A sliding plate 6 is arranged in the door-shaped frame 15 through a sliding chute 11 in a sliding way; guide rollers 18 are symmetrically arranged on two sides of the sliding plate 6; the sliding plate 6 is connected with the chute 11 in a rolling way through a guide roller 18. Under the guidance of the slide groove 11 and the guide rollers 18, the slide plate 6 can move up and down along the slide groove 11 without the problem of "derailment".

An adjusting screw rod 5 is fixedly arranged at the upper end of a sliding plate 6 on the frame 4; the adjusting screw rod 5 extends to the upper end of the frame 4 and is in threaded connection with a screw rod sleeve 12 movably arranged on the frame 4. A plurality of handles 25 are arranged on the circumferential surface of the screw rod sleeve 12; when in work, people can rotate the screw rod sleeve 12 through the handle 25; the screw rod sleeve 12 can drive the sliding plate 6 to move up and down through the adjusting screw rod 5 in the rotating process.

A carrier 7 is fixedly arranged on the end face of the sliding plate 6 (see the attached figure 2 in the specification); the load carrier 7 is composed of a connecting plate 19, a load bearing vertical plate 20 and a supporting plate 21 (see the description and the attached figure 4).

The rear end face of the bearing vertical plate 20 is welded with a connecting plate 19; the connecting plate 19 is fixedly connected with the sliding plate 6 through bolts. The shifting of the slide 6 makes it possible to bring the carriage 7 along via the connecting plate 19.

A support plate 21 is welded to the middle of the front end face of the bearing vertical plate 20. The support plate 21 has a long plate-shaped structure with a V-shaped cross section. The supporting plate 21 is mounted with a drawing cylinder 8 (see the attached figures 2 and 3 of the specification). Because drawing hydro-cylinder 8 shelves and places in backup pad 21, be "V" type back with backup pad 21 setting, backup pad 21 can carry on spacingly through inside inclined plane to drawing hydro-cylinder 8 to reach the emergence that prevents to draw hydro-cylinder 8 problem that drops.

The two sides of the bearing vertical plate 20 are symmetrically provided with bearing bayonets 22; the two sides of the bearing vertical plate 20 are clamped with the supporting screw rods 10 through bearing bayonets 22; the two ends of the supporting screw rod 10 are respectively connected with a locking nut 13 by screw threads (refer to the attached figure 2 in the specification). The diameter of the supporting screw rod 10 is smaller than the opening width of the bearing bayonet 22; the outer diameter of the lock nut 13 is larger than the opening width of the load-bearing bayonet 22. The support screw 10 can be smoothly clamped inside the loading bayonet 22 and the mounting position thereof is limited by the lock nut 13.

A pressing block 9 is movably sleeved on the supporting screw rod 10 (see the attached figure 2 of the specification). The briquetting 9 is of a rectangular structure (see the attached figure 6 in the specification); the middle part of the pressing block 9 is provided with a mounting hole 23; the pressing block 9 is movably arranged on the supporting screw rod 10 through the mounting hole 23; arc-shaped pressing grooves 24 are symmetrically arranged on two sides of the mounting hole 23. The radian of the arc-shaped indent 24 is consistent with the radian of the outer surface of the connecting rib 3 of the large belt pulley of the pumping unit speed reducer, and the pressing block 9 can be attached to and connected with the outer surface of the connecting rib 3 through the arc-shaped indent 24 during the operation.

When the drawing device suitable for disassembling the large belt pulley of the oil pumping unit is in a non-working state, the supporting screw 10, the pressing block 9 and the drawing oil cylinder 8 are in a separated state from the loader 7, and the supporting screw 10, the pressing block 9 and the drawing oil cylinder 8 need to be assembled on site during working.

When the drawing device suitable for disassembling the large belt pulley of the oil pumping unit works, the rack 4 needs to be moved firstly, so that the sliding plate 6 on the rack 4 and the large belt pulley to be disassembled are in opposite positions. Then the drawing oil cylinder 8 is placed on the supporting plate 21; then the screw rod sleeve 12 is rotated through the handle 25, so that the screw rod sleeve 12 drives the sliding plate 6 to move through the adjusting screw rod 5. The sliding plate 6 drives the drawing oil cylinder 8 to synchronously move through the loader 7 in the moving process. When the drawing oil cylinder 8 corresponds to the center of the large belt pulley to be disassembled, the screw rod sleeve 12 stops rotating.

Then, two sets of support screws 10 are symmetrically clamped on the bearing bayonets 22 at both sides of the bearing vertical plate 20. And then adjusting the supporting screw rod 10 to ensure that the locking nut 13 at one end of the supporting screw rod 10 is in abutting connection with the inner side of the bearing vertical plate 20 and the other end of the supporting screw rod 10 is symmetrically inserted into the large belt pulley. And then, the pressing block 9 is arranged on the supporting screw rod 10 and is in fit interference connection with the connecting rib 3 of the large belt pulley. The lock nut 13 is then tightened to draw the frame 4 towards the large pulley. When the drawing oil cylinder 8 on the frame 4 is abutted against the transmission shaft of the speed reducer at the center of the large belt pulley and the drawing device is stable, the locking nut 13 is stopped to be screwed.

After the above work is finished, the drawing oil cylinder 8 is started to enable the piston rod of the drawing oil cylinder to gradually extend out. In the process that a piston rod of the drawing oil cylinder 8 extends out, the rack 4 is pushed to move backwards relative to a speed reducer of the pumping unit, and in the process that the rack 4 moves backwards, the loader 7, the supporting screw 10 and the pressing block 9 drive the large belt pulley to move backwards together, so that the purpose of detaching the large belt pulley from the speed reducer of the pumping unit can be achieved. After the large belt pulley is disassembled from the speed reducer, the drawing device can enter the next working cycle.

This draw-off gear suitable for big belt pulley of beam-pumping unit is dismantled, compact structure, design benefit need not the manual work and strikes during operation, can dismantle big belt pulley through briquetting 9 that the symmetry form set up. Because the pressing block 9 has the characteristics of large stress area and balanced stress, the problems of high labor intensity and easy damage to workpieces existing when the large belt pulley is disassembled by using the puller can be effectively solved, and the use requirements of safe and efficient disassembly of the large belt pulley of the oil pumping unit are met.

Claims

1. A drawing device suitable for disassembling a large belt pulley of an oil pumping unit comprises a rack (4), an adjusting screw rod (5), a sliding plate (6), a loader (7), a drawing oil cylinder (8), a pressing block (9) and a supporting screw rod (10); the method is characterized in that: a sliding plate (6) is arranged on the frame (4) in a sliding way through a sliding chute (11); an adjusting screw rod (5) is fixedly arranged at the upper end of the sliding plate (6); the adjusting screw rod (5) extends to the upper end of the rack (4) and is in threaded connection with a screw rod sleeve (12) movably arranged on the rack (4); a loader (7) is fixedly arranged on the end surface of the sliding plate (6); a drawing oil cylinder (8) is arranged in the middle of one end of the loader (7); support screws (10) are symmetrically clamped on the carriers (7) at the two sides of the drawing oil cylinder (8); two end heads of the supporting screw rod (10) are respectively in threaded connection with a locking nut (13); a pressing block (9) is movably sleeved on the supporting screw rod (10).

2. The drawing device suitable for disassembling the large belt pulley of the oil pumping unit according to claim 1, characterized in that: the frame (4) is composed of a base (14), a door-shaped frame (15) and a supporting wheel (16); a plurality of supporting wheels (16) are symmetrically arranged below the base (14); a door-shaped frame (15) is welded at the position above the base (14) and close to the rear side; the lower end of the door-shaped frame (15) is connected with the base (14) through symmetrically arranged tie bars (17); the inner side of the door-shaped frame (15) is symmetrically provided with sliding chutes (11).

3. The drawing device suitable for disassembling the large belt pulley of the oil pumping unit according to claim 2, characterized in that: guide rollers (18) are symmetrically arranged on two sides of the sliding plate (6); the sliding plate (6) is connected with the sliding groove (11) in a rolling way through a guide roller (18).

4. The drawing device suitable for disassembling the large belt pulley of the oil pumping unit according to claim 3, characterized in that: the loader (7) is composed of a connecting plate (19), a loading vertical plate (20) and a supporting plate (21); a connecting plate (19) is welded on the rear end face of the bearing vertical plate (20); the connecting plate (19) is fixedly connected with the sliding plate (6) through a bolt; the two sides of the bearing vertical plate (20) are symmetrically provided with bearing bayonets (22); the bearing bayonet (22) is connected with the supporting screw rod (10) in a clamping way; a supporting plate (21) is welded in the middle of the front end face of the bearing vertical plate (20).

5. The drawing device suitable for disassembling the large belt pulley of the oil pumping unit according to claim 4, wherein: the supporting plate (21) is of a long plate type structure with a V-shaped section.

6. The drawing device suitable for disassembling the large belt pulley of the oil pumping unit according to claim 5, wherein: the pressing block (9) is of a rectangular structure; the middle part of the pressing block (9) is provided with a mounting hole (23); the pressing block (9) is movably arranged on the supporting screw rod (10) through the mounting hole (23); arc-shaped pressure grooves (24) are symmetrically arranged on two sides of the mounting hole (23).