CN216895464U - Mechanical brake and parking integrated device for oil pumping unit - Google Patents

Abstract

The utility model discloses a mechanical braking and parking integrated device for an oil pumping unit, which comprises a brake wheel, a parking hook, a vertical pull rod, a force transmission mechanism, a pull rod cam, a crank arm mechanism, a cross pull rod and a brake mechanism, wherein the brake wheel is arranged on the vertical pull rod; the brake wheel is provided with two brake shoes which are engaged, the upper ends of the two brake shoes are hinged together through an upper pin shaft, and the upper ends of the two brake shoes are hinged together through a lower pin shaft; one end of the parking hook is hinged on the upper pin shaft; the vertical pull rod is hinged to the other end of the parking hook, the vertical pull rod is hinged to the crank arm mechanism, one end of the transverse pull rod is hinged to the crank arm mechanism, and the other end of the transverse pull rod is hinged to the brake mechanism; one end of the force transmission mechanism is hinged with the parking hook, the other end of the force transmission mechanism is hinged with one end of the pull rod cam, and the other end of the pull rod cam with the cam head is hinged with the lower pin shaft. The device can realize braking and parking through mechanical operation, and the integrated function of braking and parking is completed through one-time operation, and the device has the advantages of simple structure and reliable performance.

Description

Mechanical brake and parking integrated device for oil pumping unit

Technical Field

The utility model relates to a brake device for a beam-pumping unit directly driven by a motor, belonging to the technical field of brake of pumping units.

Background

The pumping unit in the oil field is provided with a safety brake device because of needing to be frequently stopped. The safety and reliability of the operation of the safety brake device become the focus of important attention of oil field production enterprises.

The safe parking device of the existing beam-pumping unit consists of a brake wheel and a brake pad, and can reliably brake the pumping unit when the pumping unit is stopped, thereby reducing the potential safety hazard caused by the insecure brake. When the pumping unit operates normally, the brake disc is beaten to the right horizontal state; when the safe parking device needs to be used, the brake disc is driven to the left side, the brake disc is clamped into a dovetail groove of the brake wheel, the forward and reverse rotation of the input shaft of the speed reducer is limited, and therefore the pumping unit is reliably braked. The safe parking device is simple in structure, visual and reliable, and is the most widely applied safe parking device on the current reducer of the pumping unit.

However, the safety parking device of the existing oil pumping unit is affected by the installation position, personnel must stand on the inner side of the crank of the oil pumping unit during operation, a great potential safety hazard exists, and when the brake block is opened, the belt pulley needs to be rotated manually, the force of the brake wheel is finely adjusted to remove force, the brake block can be taken out from the dovetail groove, time and labor are wasted, and the existing use requirements of an oil field are not met.

Chinese patent document CN208595175U discloses a brake locking device for an oil pumping unit, which comprises a first reduction gearbox connected with the oil pumping unit, wherein the input end of the first reduction gearbox is connected with a first motor; the output end of the first reduction gearbox is provided with a brake wheel, and two side surfaces of the brake wheel are provided with first brake pads; plunger cylinders which are parallel to the axial direction of the brake wheel are respectively arranged on two side faces adjacent to the brake wheel, a second brake block corresponding to the first brake block is arranged at the free end of a plunger in each plunger cylinder, the oil inlet end of each plunger cylinder is communicated with an oil cavity of a piston cylinder, and a piston rod in each piston cylinder is connected with a second motor through a second reduction gearbox; the first motor and the second motor are respectively and electrically connected with a control circuit. The device utilizes the brake motor to brake the wheel in time, combines to realize beam-pumping unit locking through two-stage brake block and two-stage motor, can't realize mechanical type operation, can't change load sensor, adjust operations such as scour protection apart from when field operation, and can only realize the locking function, can't realize the parking, the function is single.

CN205639403U discloses beam-pumping unit brake equipment, including brake body and complementary unit, complementary unit sets up on the brake body, and complementary unit includes: the brake comprises a voice control module, a first prompt control module, a voice prompt module and a conduction control module, wherein the first prompt control module is connected with the voice control module, and the conduction control module is used for controlling the first prompt control module to send a first state prompt signal to the voice control module when the brake body stops working; the voice control module is connected with the voice prompt module and used for controlling the voice prompt module to send a first voice prompt signal according to the first state prompt signal, and the first voice prompt signal is used for prompting an operator to keep away from the pumping unit. The device passes through control module, voice module, leads and controls module etc. and realizes the beam-pumping unit brake function, also can't realize mechanical type operation, can not change load sensor, adjust operations such as scour protection distance, and can only realize the locking function, can not realize the parking, the function is single.

The technical solutions of the above-disclosed technologies, the technical problems to be solved, and the advantageous effects thereof are all different from the present invention, and no technical inspiration exists in the above-disclosed technical documents for more technical features, technical problems to be solved, and advantageous effects thereof.

Disclosure of Invention

Aiming at the defects of the parking technology of the existing beam pumping unit, the utility model provides a mechanical brake and parking integrated device, so that a person can complete the brake operation without entering the crank and manually rotating the belt pulley to unload force, and the brake and parking operation can be completed by using the same hand brake handle.

The mechanical brake and parking integrated device adopts the following technical scheme:

the device comprises a brake wheel, a parking hook, a vertical pull rod, a force transmission mechanism, a pull rod cam, a crank arm mechanism, a cross pull rod and a brake mechanism; the brake wheel is provided with two brake shoes which are engaged, the upper ends of the two brake shoes are hinged together through an upper pin shaft, and the upper ends of the two brake shoes are hinged together through a lower pin shaft; one end of the parking hook is hinged on the upper pin shaft; the vertical pull rod is hinged at the other end of the parking hook, the vertical pull rod is hinged with the crank arm mechanism, one end of the transverse pull rod is hinged with the crank arm mechanism, and the other end of the transverse pull rod is hinged with the brake mechanism (brake handle); one end of the force transmission mechanism is hinged with the parking hook, the other end of the force transmission mechanism is hinged with one end of the pull rod cam, and the other end of the pull rod cam with the cam head is hinged with the lower pin shaft.

And the brake wheel is provided with parking static teeth.

The crank arm mechanism comprises a crank arm seat and a crank arm, and the crank arm is hinged on the crank arm seat.

And a brake spring is arranged between the two brake shoes on the lower pin shaft.

The parking hook comprises a hook body and a movable block, wherein a sliding groove is formed in the hook body, the movable block is installed in the sliding groove, parking springs are connected between the two ends of the movable block and the hook body, and parking movable teeth are arranged on the movable block. The parking movable teeth can be matched with the parking static teeth on the brake wheel to realize parking.

The force transmission mechanism comprises a lower rod and an upper rod, wherein one end of the lower rod is hinged with the parking hook (hook body), the other end of the lower rod is hinged with the upper rod through a pin shaft, a torsion spring is arranged on the pin shaft, and the other end of the upper rod is hinged with the pull rod cam.

The brake mechanism comprises a brake seat, and a brake handle is hinged to the brake seat. The brake seat is provided with a locking ratchet, the brake handle is hinged with a locking rod, the lower end of the locking rod is provided with a locking moving tooth matched with the locking ratchet, and the brake state is locked through the locking moving tooth and the locking ratchet.

When the device is applied, the brake mechanism and the crank arm mechanism are fixedly arranged on the brake base plate of the oil pumping unit installation base, and when the brake mechanism (brake handle) is pulled backwards, the transverse pull rod, the vertical pull rod, the parking hook, the force transmission mechanism and the pull rod cam are driven to move in sequence, so that the two brake shoes tightly hold the brake wheel to complete the brake operation. The parking hook continuously rotates downwards, so that the parking hook and the brake wheel are clamped through the combination teeth (parking static teeth and parking static teeth), the brake mechanism is locked, and safe parking is realized.

The utility model can realize braking and parking through mechanical operation, complete the integrated function of braking and parking through one-time operation, complete braking operation without entering the crank and manually rotating the belt pulley to unload force, complete braking and parking operations by using the same hand brake handle, and can carry out operations of replacing a load sensor, adjusting an anti-impact distance and the like during field operation, thereby solving the problem that two sets of devices for braking and parking are respectively arranged and installed. Has the advantages of simple structure, reliable performance, convenient observation and the like.

Drawings

Fig. 1 is a schematic structural diagram of the mechanical braking and parking integrated device.

Fig. 2 is a sectional view a-a in fig. 1.

FIG. 3 is a schematic structural diagram of a parking hook of the present invention.

Fig. 4 is a schematic view of the force transfer mechanism of the present invention.

Fig. 5 is a schematic view of the use state of the present invention on a pumping unit.

In the figure: 1. a brake wheel; 2. a car parking hook; 22. parking spring, 23 loose piece, 24 parking moving tooth, 25 sliding groove; 3. a vertical pull rod; 4. a force transfer mechanism; 41. a lower rod of the force transmission mechanism, 42, a steering mechanism; 421. a pin shaft; 422. a torsion spring; 43. a force transmission upper rod; 5. a draw bar cam; 6. braking the tile; 7. a lower pin shaft; 8. a crank arm seat; 9. a tie rod; 10. a brake handle; 11. an upper pin shaft; 12. parking static teeth; 13. a brake spring; 14. a crank arm; 15. a brake seat; 16. a locking lever; 17. a locking ratchet; 18. a mechanical brake and parking integrated device; 19. a brake base plate.

Detailed Description

The utility model discloses a mechanical braking and parking integrated device, which is shown in figures 1 and 2 and comprises a brake wheel 1, a parking hook 2, a vertical pull rod 3, a force transmission mechanism 4, a pull rod cam 5, a brake shoe 6, a crank arm seat 8, a cross pull rod 9 and a brake handle 10. The outer circle of the brake wheel 1 is provided with parking static teeth 12, the outer circle of the brake wheel 1 is provided with two brake tiles 6, the two brake tiles 6 are clasped on the brake wheel 1, the upper ends of the two brake tiles 6 are hinged together through an upper pin shaft 11, the upper ends of the two brake tiles 6 are hinged together through a lower pin shaft 7, and a brake spring 13 is arranged between the two brake tiles 6 on the lower pin shaft 7.

One end of the parking hook 2 is hinged to the upper pin 11 together with the two brake shoes 6 (see fig. 2), the parking hook 2 is structured as shown in fig. 3 and comprises a hook body 21 and a loose piece 23, the lower portion of the hook body 21 is provided with a sliding groove 25, the loose piece 23 is installed in the sliding groove 25, the loose piece 23 can move in the sliding groove 25, parking springs 22 are connected between two ends of the loose piece 23 and the hook body 21, the loose piece 23 is provided with parking moving teeth 24, and the parking moving teeth 24 can be matched with the parking static teeth 12 on the brake wheel 1 to achieve parking.

The parking hook 2 is connected with a lower pin shaft 7 through a force transmission mechanism 4 and a pull rod cam 5, one end of the force transmission mechanism 4 is hinged with the parking hook 2, the other end of the force transmission mechanism is hinged with one end of the pull rod cam 5, which is provided with a cam head, is hinged with the lower pin shaft 7, and the cam head is pressed on a left brake shoe. As shown in fig. 4, the force transmission mechanism 4 includes a lower rod 41 and an upper rod 43, one end of the lower rod 41 is hinged to the hook body 21 of the parking hook 2, the other end of the lower rod is hinged to the upper rod 43 through a pin 421, a torsion spring 422 is disposed on the pin 421, and the other end of the upper rod 43 is hinged to the end of the pull rod cam 5 without a cam head.

The crank arm seat 8 is hinged with a crank arm 14 to form a crank arm mechanism. The brake seat 15 is hinged with a brake handle 10, the brake seat 15 is provided with a locking ratchet 17, the brake handle 10 is hinged with a locking rod 16, the lower end of the locking rod 16 is provided with a locking moving tooth to form a brake mechanism, and the locking moving tooth is matched with the locking ratchet 17 to enable the locking rod to be in a brake state. A hook body 21 of the parking hook 2 is hinged with a vertical pull rod 3, the vertical pull rod 3 is hinged with one end of a crank arm 14 on a crank arm seat 8, one end of a cross pull rod 9 is hinged with the other end of the crank arm 14 on the crank arm seat 8, and the other end of the cross pull rod 9 is hinged with a brake handle 10.

The usage of the mechanical integrated brake and park device 18 is shown in fig. 5, and the specific usage is as follows.

The brake wheel 1 is arranged at the power output end of the oil pumping machine, and the crank arm seat 8 and the brake seat 15 are fixedly arranged on a brake seat plate 19 of the oil pumping machine installation base. The staff can conveniently operate by standing on the ground. When the brake handle 10 is pulled backwards (left side in fig. 5), the cross pull rod 9 moves backwards along with the brake handle 10, so that the crank arm 14 rotates anticlockwise on the crank arm seat 8, the vertical pull rod 3 is pulled downwards, the parking hook 2 is pulled by the vertical pull rod 3, the force transmission mechanism 4 is pressed downwards by the parking hook 2, the pull rod cam 5 is pressed downwards by the force transmission mechanism 4, and the brake shoe 6 tightly holds the outer circle of the brake wheel 1 under the action of the pull rod cam 5, so that the brake operation is completed.

And (2) continuously pulling the brake handle 10, at the moment, continuously pressing the pull rod cam 5 by the force transmission mechanism 4, tightly holding the brake wheel 1 by the brake shoe 6, preventing the pull rod cam 5 from rotating downwards, keeping the lower rod 41 of the force transmission mechanism 4 still, downwards rotating the upper rod 43 of the force transmission mechanism around the pin shaft 421, at the moment, bearing the force of the torsion spring 422, continuously downwards rotating the parking hook 2 until the parking movable teeth 24 on the sliding block 23 are meshed with the parking static teeth 12 at the edge of the brake wheel 1, and locking the brake handle 10 to realize safe parking.

On the contrary, when the brake handle 10 is pushed forwards (right side in fig. 5), the cross rod 9 moves forwards along with the brake handle 10, the crank arm 14 rotates clockwise on the crank arm seat 8, so that the vertical pull rod 3 is pushed upwards, the vertical pull rod 3 pushes the parking hook 2 upwards, the torsion spring 422 rotates upwards to return under the action of torsion, the parking hook 2 is separated from the brake wheel 1, the brake handle 10 is pushed forwards continuously, the parking hook 2 rotates upwards continuously, the force transmission mechanism 4 drives the pull rod cam 5 to rotate upwards, the brake shoe 6 is separated from the brake wheel 1, and the brake is released. When the brake handle 10 moves, the locking rod 16 is pressed down to move along with the brake handle 10, and when the locking rod 16 is released, the position of the brake handle 10 can be locked through the matching of the locking teeth on the locking rod and the locking ratchet 17 on the brake base 15.

All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 (8)

1. The utility model provides a mechanical type parking integrated device that stops for beam-pumping unit which characterized by: the brake device comprises a brake wheel, a parking hook, a vertical pull rod, a force transmission mechanism, a pull rod cam, a crank arm mechanism, a cross pull rod and a brake mechanism; the brake wheel is provided with two brake shoes which are engaged, the upper ends of the two brake shoes are hinged together through an upper pin shaft, and the upper ends of the two brake shoes are hinged together through a lower pin shaft; one end of the parking hook is hinged on the upper pin shaft; the vertical pull rod is hinged to the other end of the parking hook, the vertical pull rod is hinged to the crank arm mechanism, one end of the transverse pull rod is hinged to the crank arm mechanism, and the other end of the transverse pull rod is hinged to the brake mechanism; one end of the force transmission mechanism is hinged with the parking hook, the other end of the force transmission mechanism is hinged with one end of the pull rod cam, and the other end of the pull rod cam with the cam head is hinged with the lower pin shaft.

2. The mechanical braking and parking integrated device for the oil pumping unit according to claim 1, which is characterized in that: and the brake wheel is provided with parking static teeth.

3. The mechanical braking and parking integrated device for the oil pumping unit according to claim 1, which is characterized in that: the crank arm mechanism comprises a crank arm seat and a crank arm, and the crank arm is hinged on the crank arm seat.

4. The mechanical braking and parking integrated device for the oil pumping unit according to claim 1, which is characterized in that: and a brake spring is arranged between the two brake tiles on the lower pin shaft.

5. The mechanical braking and parking integrated device for the oil pumping unit according to claim 1, which is characterized in that: the parking hook comprises a hook body and a movable block, wherein a sliding groove is formed in the hook body, the movable block is installed in the sliding groove, parking springs are connected between the two ends of the movable block and the hook body, and parking movable teeth are arranged on the movable block.

6. The mechanical braking and parking integrated device for the oil pumping unit according to claim 1, which is characterized in that: the force transmission mechanism comprises a lower rod and an upper rod, one end of the lower rod is hinged to the parking hook, the other end of the lower rod is hinged to the upper rod through a pin shaft, a torsion spring is arranged on the pin shaft, and the other end of the upper rod is hinged to the pull rod cam.

7. The mechanical braking and parking integrated device for the oil pumping unit according to claim 1, which is characterized in that: the brake mechanism comprises a brake seat, and a brake handle is hinged to the brake seat.

8. The mechanical braking and parking integrated device for the oil pumping unit according to claim 7, which is characterized in that: the brake seat is provided with a locking ratchet, the brake handle is hinged with a locking rod, and the lower end of the locking rod is provided with a locking moving tooth matched with the locking ratchet.

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