CN-121993513-A - Safety locking device for stopping of walking beam-free vertical machine and use method

CN121993513ACN 121993513 ACN121993513 ACN 121993513ACN-121993513-A

Abstract

The invention discloses a safety locking device for stopping a walking beam-free vertical machine and a use method thereof, wherein the safety locking device comprises a brake disc and a fixed substrate, a shaft hole is arranged in the center of the brake disc, and the brake disc comprises a locking brake disc and a friction brake disc; the locking brake handle is provided with a locking insurance, the locking brake disc is provided with a first special-shaped tooth, the locking brake handle is provided with a second special-shaped tooth, and the first special-shaped tooth and the second special-shaped tooth can be meshed. The brake is mechanically locked, self-locking is realized through the special-shaped teeth, slipping is avoided, and intrinsic safety of the brake is ensured.

Inventors

YANG PEIDONG
YU KUNLONG
JIANG XIN
HAN JIANTAO
WANG SHAOTANG
LI JINSHUANG
Heng Peibin
LI YANPING

Assignees

中国石油化工股份有限公司
中国石油化工股份有限公司胜利油田分公司

Dates

Publication Date: 20260508
Application Date: 20241101

Claims (10)

1. The safety locking device for stopping the walking beam-free vertical machine comprises a brake disc and a fixed substrate, wherein the center of the brake disc is provided with a shaft hole; The fixed baseplate is provided with a locking brake handle and a friction brake pad, and the friction brake pad can hold the friction brake disc to generate friction force; the locking brake handle is provided with locking insurance, the locking brake disc is provided with first abnormal-shaped tooth, the locking brake handle is provided with second abnormal-shaped tooth, first abnormal-shaped tooth and second abnormal-shaped tooth can be meshed.
2. The walking beam-free vertical machine stop safety locking device according to claim 1, wherein the first special-shaped tooth comprises a left side surface and a right side surface; The left side surface comprises a left tooth top edge, a left tooth middle edge and a left tooth lower edge which are connected into a whole up and down, and the right side surface comprises a right tooth top edge, a right tooth middle edge and a right tooth lower edge which are connected into a whole up and down; The top edge of the left tooth and the top edge of the right tooth are intersected at the top to form an acute-angle tooth top, and the left side surface and the right side surface of the first special-shaped tooth are symmetrical with each other about a connecting line of the tooth top and the circle center of the locking brake disc; The middle edges of the left side teeth and the right side teeth are both inclined inwards, and the extension lines of the left side teeth and the right side teeth are intersected with the circle center of the tightening brake disc; The top edge of the left tooth is parallel to the lower edge of the left tooth, and the top edge of the right tooth is parallel to the lower edge of the right tooth; the tooth shape of the second special-shaped tooth is consistent with that of the first special-shaped tooth.
3. The safety locking device for stopping a walking beam-free vertical machine according to claim 2, wherein the longitudinal section of the locking brake is in a strip-shaped structure, and the locking brake comprises a handle, a second special-shaped tooth and a rotating shaft hole; the locking safety is a self-locking rotary plunger; The handle and the rotating shaft hole are respectively distributed at the lower end and the upper end of the locking brake handle, the second special-shaped tooth is arranged at the side edge of the locking brake handle, and at least one second special-shaped tooth is arranged; The locking brake handle is characterized in that a plunger mounting hole penetrating through the rotating shaft hole from the outer surface is formed in one end of the rotating shaft hole, the self-locking rotary plunger is concentric with the plunger mounting hole, and the self-locking rotary plunger is fixedly connected with the plunger mounting hole.
4. The safety locking device for stopping a walking beam-free vertical machine according to claim 3, wherein a hanging shaft fixing plate is arranged on the fixing base plate, a brake handle hanging shaft is arranged on the hanging shaft fixing plate, the locking brake handle is arranged on the brake handle hanging shaft through a rotating shaft hole, and the locking brake handle can rotate around the brake handle hanging shaft; The brake handle hanging shaft is provided with a radial counter bore, and the radial counter bore is used for locking and locking the brake handle in a matched mode by a self-locking rotary plunger; the axial counter bore is formed in the end face of the hanging shaft of the brake handle, an axial fixing bolt is arranged in the axial counter bore, and a fixed baffle is arranged below the bolt head of the axial fixing bolt to play a role in limiting radial movement of the locking brake handle.
5. The safety locking device for stopping a walking beam-free vertical machine according to claim 4, wherein the self-locking rotary plunger comprises an operation knob, a mounting seat, a locking pin and a compression spring, wherein the mounting seat is fixedly connected with a plunger mounting hole; the lower end of the mounting seat is provided with a spring counter bore, the upper end of the spring counter bore is provided with a stud through hole, and the compression spring is arranged in the spring counter bore; The upper end of the locking pin is provided with a stud, the locking pin is arranged in the spring counter bore, the stud penetrates through the compression spring and the stud through hole, and the lower end of the operation knob is connected with the stud; the operation knob lower extreme is provided with protruding type structure, the mount pad upper end is provided with concave type structure, protruding type structure can block into in the concave type structure.
6. The walking beam-free vertical machine shutdown safety locking device according to claim 1, wherein the locking brake disc is of a circular ring structure, the first special-shaped teeth are uniformly distributed along the periphery of the locking brake disc, and at least two circular holes are formed in the middle of the locking brake disc; The round holes on the locking brake disc are distributed uniformly with the round holes on the friction brake disc, and the locking brake disc is fixed with the friction brake disc through a locking brake disc fixing base plate, a locking brake disc fixing bolt and a locking brake disc fixing nut; The friction brake disc is connected with the input shaft of the reduction gearbox through the key groove and the axial locking bolt, and the friction brake disc, the locking brake disc and the input shaft of the reduction gearbox are coaxial.
7. The walking beam-free vertical machine stop safety locking device according to claim 2, wherein the middle edge of the left tooth and the middle edge of the right tooth are inclined inwards by five degrees.
8. A walking-beam-free vertical machine comprising a reduction gearbox, wherein an input shaft of the reduction gearbox is provided with a walking-beam-free vertical machine shutdown safety locking device according to any one of claims 1 to 7.
9. The application method of the safety locking device for stopping the walking beam-free vertical machine is characterized by comprising the following steps of: s1, arranging the safety locking device for stopping the walking beam-free vertical machine on an input shaft of a reduction gearbox of the walking beam-free vertical machine according to any one of claims 1-7; S2, pressing the friction brake pad to rub with the friction brake disc during locking operation, and stopping rotation of the input shaft of the gearbox coaxial with the friction brake disc; Firstly releasing the safety, then, locking a brake handle to rotate downwards around a brake handle hanging shaft, and enabling a second special-shaped tooth on the locking brake handle to be meshed with a first special-shaped tooth on the locking brake disc so as to finish locking and parking; s3, when the locking brake handle is unlocked, the locking brake handle rotates upwards around the hanging shaft of the brake handle, the second special-shaped tooth on the locking brake handle is separated from the first special-shaped tooth on the locking brake disc, then the friction brake block is released, at the moment, the input shaft of the gearbox can rotate freely, and then the locking brake is protected.
10. The method of claim 9, wherein when the safety is released, the operating knob is lifted to separate the male structure from the female structure, and then the rotating operating knob is rotated to complete the opening operation, and the compression spring is compressed by the locking pin; when the safety is up, the operation knob is rotated, the locking pin is enabled to move downwards by means of the elasticity of the compression spring and inserted into the radial counter bore, and meanwhile, the convex structure penetrates into the concave structure, so that locking is completed.

Description

Safety locking device for stopping of walking beam-free vertical machine and use method Technical Field The invention relates to the technical field of pumping units, in particular to a non-walking beam vertical machine shutdown safety locking device and a use method thereof. Background At present, oil field ground oil extraction equipment is mainly an oil pumping unit, a non-beam machine in a vertical oil pumping unit is mainly the extraction equipment, and the braking of the oil pumping unit is realized by a brake disc arranged on an input shaft of a speed reducer and by friction braking of a brake pad, so that the input shaft is braked. With the increase of service life, the friction coefficient of the friction surface is reduced, and the braking force cannot be completely ensured after the braking is performed again. When the oil pumping machine works due to load change of an oil well, maintenance of the oil pumping machine and overhaul of a guide wheel, lubricating oil in a machine case is cleaned, the phenomenon of sliding caused by external force vibration exists in friction braking, so that unexpected movement of the oil pumping machine is caused, and great potential safety hazards are caused to equipment and operators. CN113107994A, a device for improving the braking safety of beam pumping unit, which comprises a brake disc, locking teeth, a locking tooth shaft, a shifting fork, a conversion head, a handle seat and other parts. The brake is realized in a gear engagement mode through both the gear type brake disc and the locking teeth, and the locking teeth are fixed and immovable in position after the brake, so that the brake disc is locked. CN208935228U, a self-locking protection device for braking of a belt pumping unit, which is used for pulling a brake handle after the pumping unit is stopped, enabling gear teeth of a ratchet wheel to rotate clockwise, pushing a locking tooth block to move backwards, realizing resetting of the locking tooth block under the action of a reset spring after a braking system is braked in place, matching with the ratchet wheel, locking the brake, and preventing the phenomenon of sliding of the brake. CN214945913U, discloses an internal and external double-meshing fluted disc type brake safety device for an oil pumping unit, wherein a brake plate is positioned at the upper part of an external fluted disc, is connected with a reduction gearbox together with a brake hoop through a lengthened brake shaft, and is internally provided with an internal fluted disc, so that the oil pumping unit can be reliably locked and easily opened at any position without load by internal and external double meshing. The tooth shapes in the prior art are all common tooth shapes, have no self-locking function, can not work when the mechanical structure for clamping the handle fails, and the rotating shaft of the handle is not provided with safety measures, so that danger can be generated if the brake is started in the operation process of the pumping unit. In summary, the technical scheme of the above disclosed technology, the technical problems to be solved and the beneficial effects are different from those of the present invention, and the above disclosed technical documents have no technical teaching for more technical features of the present invention, the technical problems to be solved and the beneficial effects. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide a safety locking device for stopping a walking beam-free vertical machine and a use method thereof. In order to achieve the above purpose, the present invention adopts the following technical scheme: The invention provides a safety locking device for stopping a walking beam-free vertical machine, which comprises a brake disc and a fixed base plate, wherein a shaft hole is formed in the center of the brake disc, the brake disc comprises a locking brake disc and a friction brake disc, a locking brake handle and a friction brake block are arranged on the fixed base plate, the friction brake block can hold the friction brake disc to generate friction force, the locking brake handle is provided with a locking safety, the locking brake disc is provided with a first special-shaped tooth, the locking brake handle is provided with a second special-shaped tooth, and the first special-shaped tooth can be meshed with the second special-shaped tooth. Further, the first profiled tooth comprises a left side face and a right side face; The left side face comprises a left side tooth top edge, a left side tooth middle edge and a left side tooth lower edge which are connected into a whole up and down, and the right side face comprises a right side tooth top edge, a right side tooth middle edge and a right side tooth lower edge which are connected into a whole up and down; Specifically, the top edge of the left tooth and the top edge of the right tooth intersect at the top to form an acute-ang