CN108468733B - Triple safety device for auxiliary brake of beam pumping unit - Google Patents
Triple safety device for auxiliary brake of beam pumping unit Download PDFInfo
- Publication number
- CN108468733B CN108468733B CN201810523531.7A CN201810523531A CN108468733B CN 108468733 B CN108468733 B CN 108468733B CN 201810523531 A CN201810523531 A CN 201810523531A CN 108468733 B CN108468733 B CN 108468733B
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- brake
- plate
- groove
- pin
- fluted disc
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
- E21B43/127—Adaptations of walking-beam pump systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
Abstract
The invention discloses an auxiliary brake triple safety device of a beam pumping unit, which comprises a starting mechanism, a middle transmission mechanism, a first safety mechanism, a second safety mechanism and a third safety mechanism; the starting mechanism comprises a bracket, a sleeve, a bearing seat, a bearing, a driving shaft, a bolt transmission piece and a manual rotation piece; the first safety mechanism adopts a locking pin type structure; the intermediate transmission mechanism comprises a transverse pull rod, a reversing support and a vertical pull rod which are sequentially connected; the second safety mechanism comprises a fluted disc, fluted disc teeth, a brake plate meshing device matched with the fluted disc teeth and a brake plate shaft; the third safety mechanism adopts a locking bolt type structure. The auxiliary brake has triple insurance, thus fundamentally avoiding the phenomenon of sliding and ensuring the braking to be lost; the operation is simple and convenient, and any position is locked and unlocked; the personal safety of an operator is fully ensured; the process is stable, and time and labor are saved.
Description
Technical Field
The invention relates to the technical field of mechanical braking of oil fields, in particular to an auxiliary braking triple safety device of a beam pumping unit.
Background
The existing brake mainly comprises two main types, namely an external holding type brake and an internal expanding type brake, and the brake of the pumping unit is realized by utilizing a friction pair. With the increase of service life, the brake moment is reduced due to the normal abrasion of the brake friction pair and the brake wheel, the deformation of the brake connecting rod mechanism and the like; in the construction operation process of stopping the oil pumping unit by an operator, the operation worker only uses a conventional brake device to brake, and the oil pumping unit vibrates due to oil well load change, well repair operation, maintenance of the oil pumping unit, replacement of a crank pin assembly and the like during the construction operation of the oil pumping unit, so that a friction pair of the oil pumping unit brake is easy to slide, unexpected movement of the oil pumping unit, especially unexpected rotation of a crank, causes great potential safety hazards to equipment and operators. Personal and mechanical accidents caused by failure and slipping of friction brake occur in each oil field.
According to the petroleum and natural gas industry beam pumping unit GB/T29021-2012.2.10: the beam-pumping unit braking device should be equipped with a safety hook. But the operation position of the hook is positioned at the top of the reduction gearbox or in a narrow space between the crank and the reduction gearbox, so that the operation is inconvenient and dangerous, and potential safety hazards exist.
Disclosure of Invention
In order to overcome the defects in the prior art, thoroughly eliminate accident hidden trouble and realize intrinsic safety, the invention aims at fundamentally improving the brake structure and provides an auxiliary brake triple safety device of a beam pumping unit.
The technical proposal is as follows: the safety device comprises a starting mechanism, an intermediate transmission mechanism, a first safety mechanism, a second safety mechanism and a third safety mechanism; the starting mechanism comprises a bracket, a sleeve, a bearing seat, a bearing, a driving shaft, a bolt transmission piece and a manual rotation piece, wherein the lower part of the bracket is welded on a base of the oil pumping unit, the sleeve and the bearing seat are connected in sequence and welded on the upper part of the bracket, the driving shaft is arranged on the bearing seat through the bearing, the front end of the driving shaft is connected with the rear end of the bolt transmission piece arranged in the sleeve, and the manual rotation piece is arranged at the rear end of the driving shaft; the middle transmission mechanism comprises a transverse pull rod, a reversing support and a vertical pull rod which are sequentially connected, the rear end of the transverse pull rod is hinged with the front end of the bolt transmission piece, and the front end of the transverse pull rod is hinged with the lower end of the vertical pull rod through the reversing support; the first safety mechanism adopts a locking pin type structure capable of preventing the driving shaft from rotating; the second safety mechanism comprises a fluted disc assembly, a braking plate and a braking plate shaft, wherein the fluted disc assembly comprises a fluted disc and fluted disc teeth, the longitudinal section of which is isosceles triangle, are uniformly arranged on the outer ring of the fluted disc, the fluted disc and a braking wheel or a braking hub are cast into a whole or are fixedly connected by bolts, the braking plate shaft is fixed on the upper part of the speed reducer, the braking plate is arranged above the fluted disc assembly, the front end of the braking plate is hinged with the braking plate shaft through a braking plate hole of the braking plate, the rear end of the braking plate is hinged with the upper end of a vertical pull rod, the front lower end of the braking plate is in an arc shape concentric with the fluted disc, the front part of the braking plate is provided with a braking plate meshing device matched with the fluted disc teeth, the rear lower part of the braking plate is provided with a tail wing, and the end part of the tail wing is welded with a U-shaped piece; the third safety mechanism adopts a locking bolt type structure, and the upper part of the third safety mechanism is connected with the U-shaped part of the tail wing and the lower part of the third safety mechanism is connected with the speed reducer.
The above technical scheme can be further optimized as:
the brake plate meshing device comprises a first groove, a second groove, a return spring, a spring positioning pin, a brake plate tooth assembly movable pin, a cover plate and a cover plate positioning pin; the first groove is a notch groove, the notch surface of the first groove is positioned at the arc surface at the lower end of the front part of the brake plate, the upper end surface of the first groove is an arc surface corresponding to the notch surface, the two side surfaces of the first groove are corresponding surfaces forming an obtuse angle with the notch surface, and the bottom surface of the first groove is a plane; the second groove is longitudinally formed in the bottom surface of the first groove, two ends of the second groove extend below the surface of the brake plate in a homeotropic mode to form a tunnel, the upper side surface of the second groove is a plane, and the lower side surface of the second groove is an arc-shaped surface corresponding to the notch surface; the number of the return springs is 2, one end supporting ring of each return spring is connected with the spring positioning pin, and the other end supporting ring can be stretched to the center position of the second groove so that the supporting rings of the two return springs are in a superposition state; the brake gear assembly comprises a brake gear base plate and a plurality of brake gears continuously distributed at the lower end of the brake gear base plate, the brake gears can be meshed with the fluted disc gears, the upper end face of the brake gear base plate is matched with the upper end face of the first groove, two side faces of the brake gear base plate are respectively parallel to the side faces of the adjacent first groove, the bottom face of the brake gear base plate is a plane and is matched with the bottom face of the first groove, and a base plate hole is formed in the middle of the brake gear base plate; the cover plate is an arc-shaped plate, the lower end face of the cover plate is attached to the arc-shaped face of the lower end of the front part of the brake plate, a third groove is formed in the inner face of the cover plate, the movable pin of the brake plate tooth assembly penetrates through the hole of the substrate and is connected with a supporting ring overlapped with the return spring through the inner end of the movable pin, the outer end of the movable pin is connected with the third groove in a sliding manner, 3 cover plate positioning pin holes for installing the cover plate positioning pin and 2 spring positioning pin holes for installing the spring positioning pin are formed in the cover plate, and a cover plate hole overlapped with the brake plate hole is formed in the front end of the cover plate; the brake plate is provided with 3 cover plate positioning pin holes and 2 spring positioning pin holes at positions corresponding to the cover plates.
The number of the brake plate teeth is 2.
The locking bolt type structure comprises a supporting shaft, a pin shaft, a screw rod, nuts, a lock nut, a hinge piece and a supporting spring, wherein the supporting shaft is arranged at the lower part of the speed reducer, the pin shaft penetrates through two side edges of the U-shaped piece, the upper part of the screw rod is hinged with the pin shaft and fastened by the lock nut, the lower part of the screw rod is connected with the hinge piece through one nut and hinged with the supporting shaft, the supporting spring is sleeved on the part of the screw rod below the pin shaft, and the lower end of the supporting spring is fastened by two nuts.
The locking pin structure comprises a locking groove and a locking pin which is arranged on the sleeve and matched with the locking groove; the locking groove is a groove formed by a plurality of protruding blocks positioned at the periphery of the driving shaft inside the sleeve close to the bearing seat; the locking pin comprises a barrel, a pin and a cover body, wherein the lower part of the barrel is provided with external threads and sleeved with a locking nut, the top of the barrel is provided with 2 opposite clamping grooves, the cover body comprises a top shell and a side wall, the lower part of the top shell is fixedly connected with the top end of the pin, the lower part of the side wall of the cover body is provided with 2 opposite clamping protrusions, and the clamping protrusions are matched with the clamping grooves.
The inside spring structure that is equipped with of barrel suit around the pin.
The manual rotating piece adopts a hand wheel.
The support is formed by welding steel plates.
The invention has the following beneficial effects:
1. the auxiliary brake has triple insurance, thus fundamentally avoiding the phenomenon of sliding and ensuring the braking to be lost.
2. The operation is simple and convenient, the main operation can be completed only by rotating the hand wheel, and the complicated operation procedure of the original brake insurance is avoided.
3. The design of micro-motion and complete engagement of the brake plate tooth assembly is adopted, and any position can be locked and unlocked.
4. Fully guaranteeing the personal safety of operators. The operation of the first safety mechanism and the second safety mechanism is performed in a safety area at the tail of the oil pumping unit, and the third safety mechanism is performed under a safety condition after the operation of the first safety mechanism and the second safety mechanism is completed.
5. The brake has no severe impact in the tightening and loosening processes, the whole operation process is smooth and stable, the defect that the safety device suddenly fails due to vibration and impact is avoided, and the brake is safe and reliable.
6. Adopts the bolt driving piece for driving, thereby saving time and labor.
Drawings
FIG. 1 is a schematic diagram of the structural layout of the present invention;
FIG. 2 is a schematic diagram of a second safety mechanism and a third safety mechanism according to the present invention;
FIG. 3 is a schematic view of the brake plate coupler prior to installation of the brake plate tooth assembly;
FIG. 4 is a schematic view of the brake plate coupler after installation of the brake plate tooth assembly;
FIG. 5 is a schematic view of the inner face of the cover plate of the brake plate coupler;
FIG. 6 is a schematic view of the structure of the starting mechanism of the present invention;
FIG. 7 is a schematic view of a locking pin structure of a first safety mechanism according to the present invention;
in the figure: 1-vertical pull rod, 2-brake plate, 3-hinge, 4-screw, 5-nut, 6-adjusting tube, 7-supporting shaft, 8-tail, 9-brake plate tooth, 10-brake plate shaft, 11-fluted disc tooth, 12-fluted disc center hole, 13-speed reducer, 14-fluted disc, 15-bolt hole, 16-pumping unit base, 17-lock nut, 18-bearing seat, 19-supporting spring, 20-sleeve, 21-tie rod, 22-driving shaft, 23-bracket, 24-reversing support, 25-pin, 26-locking pin, 27-brake plate meshing device, 28-U-shaped piece, 29-starting mechanism, 30-motor, 31-hand wheel, 32-brake wheel, 33-third safety mechanism, 34-first groove, 35-second groove, 36-return spring, 36.1-return spring superposed supporting ring, 37-cover plate, 38-brake plate tooth base plate, 39-base plate hole, 40-third groove, 41-cover plate positioning pin hole, 42-spring positioning pin hole, 43-cover plate, 44-46-brake plate hole, 45-46-locking pin, 48-barrel body, 48-locking pin, barrel cover plate hole, 50-locking pin, barrel body, and barrel body.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
See fig. 1, 2, 3, 4, 5, 6 and 7.
A triple safety device for auxiliary brake of a beam pumping unit comprises a starting mechanism 29, an intermediate transmission mechanism, a first safety mechanism, a second safety mechanism and a third safety mechanism.
The actuator 29 comprises a support 23, a sleeve 20, a bearing housing 18, bearings, a drive shaft 22, a bolt transmission and a manual rotation. The lower part of the bracket 23 is welded on the pumping unit base 16, and the sleeve 20 and the bearing seat 18 are connected in sequence and welded on the upper part of the bracket 23. To ensure the firmness of the bracket 23, the bracket 23 is welded from a steel plate. The driving shaft 22 is mounted on the bearing seat 18 through a bearing, the front end of the driving shaft 22 is connected with the rear end of a bolt transmission member arranged in the sleeve 20, and the rear end of the driving shaft 22 is provided with a manual rotation member. The hand wheel 31 is used as the manual rotation member.
The middle transmission mechanism comprises a transverse pull rod 21, a reversing support 24 and a vertical pull rod 1 which are sequentially connected, the rear end of the transverse pull rod 21 is hinged with the front end of the bolt transmission member, and the front end of the transverse pull rod 21 is hinged with the lower end of the vertical pull rod 1 through the reversing support 24.
The first safety mechanism adopts a lock pin type structure capable of preventing the rotation of the drive shaft 22. The locking pin structure includes a locking slot 27 and a locking pin 26 mounted on the sleeve 20 and cooperating with the locking slot 27. The locking groove 27 is a recess formed between a plurality of lugs 26 located on the periphery of the drive shaft 22 within the sleeve 20 adjacent the bearing housing 18. The lock pin 26 includes a cylinder 45, a pin 46, and a cover 47. The lower part of the cylinder 45 is provided with external threads and sleeved with a lock nut 48; when installed, the lower portion of the barrel 45 passes through the sleeve wall and is fixedly connected thereto by external threads, and is secured outside the sleeve wall by a lock nut 48. The top of the barrel 45 is provided with 2 opposed detents 49. The cover body 47 comprises a top shell and side walls, the lower surface of the top shell is fixedly connected with the top end of the pin, 2 opposite clamping protrusions 50 are arranged on the lower portion of the side walls of the cover body 47, and the clamping protrusions 50 are matched with the clamping grooves 49. In order to exert the elastic restoring force and promote the locking pin 26 to maintain the locking state more stably and prevent the locking failure caused by vibration and other reasons, a spring structure sleeved around the pin 46 is arranged inside the cylinder 45.
The second safety mechanism comprises a fluted disc assembly, a brake plate 2 and a brake plate shaft 10. The fluted disc assembly comprises a fluted disc 14 and fluted disc teeth 11 with isosceles triangle longitudinal sections, wherein the fluted disc 14 and a brake wheel 32 or a brake hub are cast into a whole or fixedly connected by bolts; the brake plate shaft 10 is fixed on the upper part of the speed reducer 13; the brake plate 2 is arranged above the fluted disc assembly, the front end of the brake plate 2 is hinged with the brake plate shaft 10 through a brake plate hole 43 thereof, the rear end of the brake plate 2 is hinged with the upper end of the vertical pull rod 1, the front lower end of the brake plate 2 is in an arc shape concentric with the fluted disc 14, a brake plate meshing device 27 matched with the fluted disc tooth 11 is arranged at the front part of the brake plate 2, the rear lower part of the brake plate 2 is provided with the tail fin 8, and the end part of the tail fin 8 is welded with a U-shaped piece 28. The brake plate coupler 27 includes a first recess 34, a second recess 35, a return spring 36, a spring detent pin, a brake plate tooth assembly movable pin, a cover plate 37, and a cover plate detent pin. The first groove 34 is a notch groove, the notch surface of the first groove is positioned on the arc surface at the lower end of the front part of the brake plate 2, the upper end surface is an arc surface corresponding to the notch surface, the two side surfaces are corresponding surfaces forming an obtuse angle with the notch surface, and the bottom surface is a plane. The second groove 35 is longitudinally arranged on the bottom surface of the first groove 34, and two ends of the second groove respectively extend below the surface of the brake plate 2 in a homeotropic manner to form a tunnel, and the upper side surface of the second groove is a plane, and the lower side surface of the second groove is an arc-shaped surface corresponding to the notch surface. The number of the return springs 36 is 2, one end supporting ring of each return spring is connected with the spring positioning pin, and the other end supporting ring can be stretched to the center position of the second groove so that the supporting rings of the two return springs are in a superposed state. The brake gear assembly comprises a brake gear base plate 38 and a plurality of brake gears 9 which are continuously distributed at the lower end of the brake gear base plate, and the brake gears 9 can be meshed with the fluted disc gears 11. From the practical application, the brake plate teeth 9 are appropriately arranged, so that the brake plate teeth can be fully meshed with the fluted disc teeth 11, and the brake plate teeth are convenient to process and manufacture. The upper end face of the brake gear base plate 38 is matched with the upper end face of the first groove 34, two side faces of the brake gear base plate 38 are respectively parallel to the side faces of the adjacent first groove 34, the bottom face of the brake gear base plate 38 is a plane and is attached to the bottom face of the first groove 34, and a base plate hole 39 is formed in the middle of the brake gear base plate 38. The cover plate 37 is an arc-shaped plate, the lower end surface of the cover plate is attached to the arc-shaped surface of the front lower end of the brake plate 2, and a third groove 40 is formed in the inner surface of the cover plate; the movable pin of the brake plate tooth assembly passes through the substrate hole 39 and is connected with the inner end of the movable pin to the support ring 36.1 overlapped with the return spring, and is connected with the outer end of the movable pin to the third groove 40 in a sliding way; the cover plate 37 is provided with 3 cover plate positioning pin holes for installing the cover plate positioning pins and 2 spring positioning pin holes for installing the spring positioning pins; the front end of the cover plate is provided with a cover plate hole overlapped with the brake plate hole. The brake plate is provided with 3 cover plate positioning pin holes 41 and 2 spring positioning pin holes 42 at positions corresponding to the cover plates. In the second safety mechanism, the return spring 36 functions as two: firstly, the brake plate tooth assembly ensures that the brake plate tooth 9 and the fluted disc tooth 11 reach a complete meshing state in the inching process by means of the telescopic function of the return spring 36; secondly, the brake gear assembly automatically returns the brake gear 9 after being disengaged by the elastic restoring force of the return spring 36. In addition, it should be noted that, since the arc end surfaces of the first groove 34, the second groove 35 and the brake gear base plate 38 are concentric with the circular surface of the fluted disc 14, a basic guarantee is provided for realizing complete engagement of the brake gear 9 and the fluted disc gear 11.
The third safety mechanism adopts a locking bolt type structure, and is connected with a U-shaped piece 28 of the tail wing 8 and a lower speed reducer 13. The locking bolt type structure comprises a supporting shaft 7, a pin shaft 37, a screw 4, a nut 5, a lock nut 35, a hinge element 3 and a supporting spring 36, wherein the supporting shaft 7 is arranged at the lower part of the speed reducer 13, the pin shaft 37 penetrates through two side edges of the U-shaped piece 28, the upper part of the screw 4 is hinged with the pin shaft 37 and fastened by the lock nut 35, the lower part of the screw 4 is connected with the hinge element 3 through the nut 5 and is hinged with the supporting shaft 7, the supporting spring 36 is sleeved at the part of the screw 4 below the pin shaft 37, and the lower end of the supporting spring 36 is fastened by the two nuts 5. The supporting spring 36 not only can play an effective supporting role, but also can remarkably enhance the bending resistance, shearing resistance and tensile resistance of the screw 4, so that the safety function is more reliable.
The basic working principle of the invention is as follows:
and after the main brake operation of the pumping unit is finished, auxiliary brake is carried out. The auxiliary brake is performed in four steps, in the first step, the first safety mechanism is operated to pull the cover 47 of the locking pin 26, so that the pin 46 is separated from the locking groove 27, and the driving shaft 22 is in a rotatable state; secondly, rotating the hand wheel 31 by hand to enable the driving shaft 22 to rotate, driving the intermediate transmission mechanism to operate through bolt transmission, and enabling the brake plate teeth 9 and the fluted disc teeth 11 of the second safety mechanism to be completely meshed; third, the first safety mechanism is operated to push the cover body 47 of the locking pin, so that the pin 46 enters the locking groove 27 to prevent the driving shaft 22 from rotating; and fourthly, operating the third safety mechanism, and tensioning the brake plate 2 through a locking bolt type structure to ensure the meshing sufficiency and reliability of the second safety mechanism. The third safety mechanism has other special functions, such as the fact that when the tie rod 21 and the vertical rod 1 are accidentally broken or destroyed, or the intermediate transmission mechanism is disassembled when the pumping unit equipment is in a transportation state, the matching safety function of the second safety mechanism and the intermediate transmission mechanism is eliminated, but the third safety mechanism still can be matched with the second safety mechanism to well realize the safety function, prevent the crankshaft of the reducer 13 from rotating, ensure the auxiliary braking of the pumping unit to be in a safe state, and ensure the safe transportation of the equipment.
Claims (6)
1. The utility model provides a triple safety device of beam-pumping unit auxiliary brake which characterized in that: the safety device comprises a starting mechanism, an intermediate transmission mechanism, a first safety mechanism, a second safety mechanism and a third safety mechanism; the starting mechanism comprises a bracket, a sleeve, a bearing seat, a bearing, a driving shaft, a bolt transmission piece and a manual rotation piece, wherein the lower part of the bracket is welded on a base of the oil pumping unit, the sleeve and the bearing seat are connected in sequence and welded on the upper part of the bracket, the driving shaft is arranged on the bearing seat through the bearing, the front end of the driving shaft is connected with the rear end of the bolt transmission piece arranged in the sleeve, and the manual rotation piece is arranged at the rear end of the driving shaft; the middle transmission mechanism comprises a transverse pull rod, a reversing support and a vertical pull rod which are sequentially connected, the rear end of the transverse pull rod is hinged with the front end of the bolt transmission piece, and the front end of the transverse pull rod is hinged with the lower end of the vertical pull rod through the reversing support; the first safety mechanism adopts a locking pin type structure capable of preventing the driving shaft from rotating; the second safety mechanism comprises a fluted disc assembly, a braking plate and a braking plate shaft, wherein the fluted disc assembly comprises a fluted disc and fluted disc teeth, the longitudinal section of which is isosceles triangle, are uniformly arranged on the outer ring of the fluted disc, the fluted disc and a braking wheel or a braking hub are cast into a whole or are fixedly connected by bolts, the braking plate shaft is fixed on the upper part of the speed reducer, the braking plate is arranged above the fluted disc assembly, the front end of the braking plate is hinged with the braking plate shaft through a braking plate hole of the braking plate, the rear end of the braking plate is hinged with the upper end of a vertical pull rod, the front lower end of the braking plate is in an arc shape concentric with the fluted disc, the front part of the braking plate is provided with a braking plate meshing device matched with the fluted disc teeth, the rear lower part of the braking plate is provided with a tail wing, and the end part of the tail wing is welded with a U-shaped piece; the third safety mechanism adopts a locking bolt type structure, and the upper part of the third safety mechanism is connected with a tail U-shaped piece and the lower part of the third safety mechanism is connected with a speed reducer; the locking pin structure comprises a locking groove and a locking pin which is arranged on the sleeve and matched with the locking groove; the locking groove is a groove formed by a plurality of protruding blocks positioned at the periphery of the driving shaft inside the sleeve close to the bearing seat; the locking pin comprises a barrel, a pin and a cover body, wherein the lower part of the barrel is provided with external threads and sleeved with a locking nut, the top of the barrel is provided with 2 opposite clamping grooves, the cover body comprises a top shell and a side wall, the lower part of the top shell is fixedly connected with the top end of the pin, the lower part of the side wall of the cover body is provided with 2 opposite clamping protrusions, and the clamping protrusions are matched with the clamping grooves; the locking bolt type structure comprises a supporting shaft, a pin shaft, a screw rod, nuts, a lock nut, a hinge piece and a supporting spring, wherein the supporting shaft is arranged at the lower part of the speed reducer, the pin shaft penetrates through two side edges of the U-shaped piece, the upper part of the screw rod is hinged with the pin shaft and fastened by the lock nut, the lower part of the screw rod is connected with the hinge piece through one nut and hinged with the supporting shaft, the supporting spring is sleeved on the part of the screw rod below the pin shaft, and the lower end of the supporting spring is fastened by two nuts.
2. The triple safety device for auxiliary brake of beam pumping unit according to claim 1, wherein: the brake plate meshing device comprises a first groove, a second groove, a return spring, a spring positioning pin, a brake plate tooth assembly movable pin, a cover plate and a cover plate positioning pin; the first groove is a notch groove, the notch surface of the first groove is positioned at the arc surface at the lower end of the front part of the brake plate, the upper end surface of the first groove is an arc surface corresponding to the notch surface, the two side surfaces of the first groove are corresponding surfaces forming an obtuse angle with the notch surface, and the bottom surface of the first groove is a plane; the second groove is longitudinally formed in the bottom surface of the first groove, two ends of the second groove extend below the surface of the brake plate in a homeotropic mode to form a tunnel, the upper side surface of the second groove is a plane, and the lower side surface of the second groove is an arc-shaped surface corresponding to the notch surface; the number of the return springs is 2, one end supporting ring of each return spring is connected with the spring positioning pin, and the other end supporting ring can be stretched to the center position of the second groove so that the supporting rings of the two return springs are in a superposition state; the brake gear assembly comprises a brake gear base plate and a plurality of brake gears continuously distributed at the lower end of the brake gear base plate, the brake gears can be meshed with the fluted disc gears, the upper end face of the brake gear base plate is matched with the upper end face of the first groove, two side faces of the brake gear base plate are respectively parallel to the side faces of the adjacent first groove, the bottom face of the brake gear base plate is a plane and is matched with the bottom face of the first groove, and a base plate hole is formed in the middle of the brake gear base plate; the cover plate is an arc-shaped plate, the lower end face of the cover plate is attached to the arc-shaped face of the lower end of the front part of the brake plate, a third groove is formed in the inner face of the cover plate, the movable pin of the brake plate tooth assembly penetrates through the hole of the substrate and is connected with a supporting ring overlapped with the return spring through the inner end of the movable pin, the outer end of the movable pin is connected with the third groove in a sliding manner, 3 cover plate positioning pin holes for installing the cover plate positioning pin and 2 spring positioning pin holes for installing the spring positioning pin are formed in the cover plate, and a cover plate hole overlapped with the brake plate hole is formed in the front end of the cover plate; the brake plate is provided with 3 cover plate positioning pin holes and 2 spring positioning pin holes at positions corresponding to the cover plates.
3. The triple safety device for auxiliary brake of beam pumping unit according to claim 2, wherein: the number of the brake plate teeth is 2.
4. The triple safety device for auxiliary brake of beam pumping unit according to claim 1, wherein: the inside spring structure that is equipped with of barrel suit around the pin.
5. The triple safety device for auxiliary brake of beam pumping unit according to claim 1, wherein: the manual rotating piece adopts a hand wheel.
6. A triple safety device for auxiliary braking of a beam pumping unit according to any one of claims 1 to 5, wherein: the support is formed by welding steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523531.7A CN108468733B (en) | 2018-05-28 | 2018-05-28 | Triple safety device for auxiliary brake of beam pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523531.7A CN108468733B (en) | 2018-05-28 | 2018-05-28 | Triple safety device for auxiliary brake of beam pumping unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108468733A CN108468733A (en) | 2018-08-31 |
| CN108468733B true CN108468733B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810523531.7A Active CN108468733B (en) | 2018-05-28 | 2018-05-28 | Triple safety device for auxiliary brake of beam pumping unit |
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| CN (1) | CN108468733B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111577794B (en) * | 2020-04-17 | 2021-12-14 | 新疆维吾尔自治区第三机床厂 | Disc brake device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US10094368B2 (en) * | 2011-07-13 | 2018-10-09 | International Business Alliance Management, Inc. | Tower drive pumping unit |
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| CN201125860Y (en) * | 2007-11-22 | 2008-10-01 | 宣士奇 | Double safety mutual locking type oil pumping machine brake device |
| CN201507290U (en) * | 2009-09-29 | 2010-06-16 | 徐广生 | Beam-pumping unit fluted disc type braking safety device |
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| CN108468733A (en) | 2018-08-31 |
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