CN105952817A - Oil pumping unit brake structure with self-locking function - Google Patents
Oil pumping unit brake structure with self-locking function Download PDFInfo
- Publication number
- CN105952817A CN105952817A CN201610280499.5A CN201610280499A CN105952817A CN 105952817 A CN105952817 A CN 105952817A CN 201610280499 A CN201610280499 A CN 201610280499A CN 105952817 A CN105952817 A CN 105952817A
- Authority
- CN
- China
- Prior art keywords
- brake
- brake disc
- brake block
- fastened
- cylinder structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
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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
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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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
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
-
- 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
- F16D2127/02—Release mechanisms
- F16D2127/04—Release mechanisms for manual operation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Braking Arrangements (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides an oil pumping unit brake structure with a self-locking function. By means of the oil pumping unit brake structure with the self-locking function, the effect that a beam-pumping unit stops operating quickly is ensured, and accordingly normal proceeding of oil delivery is ensured. A direct-drive permanent magnet motor is supported on a base. A brake disc is installed on one side of an output shaft of the direct-drive permanent magnet motor in a sleeving mode. A brake block support is installed on the side, corresponding to the brake disc, of the base. A linear feeding component is fastened to the position, facing the brake disc, of the brake block support, and the linear feeding component moves away from or close to the outer end face of the brake disc. The output portion of the linear feeding component faces the outer end face of the brake disc, and a brake block is fastened to the output portion of the linear feeding component. The braking region of the brake block faces the outer end face of the brake disc. A locking sheet is arranged on the end face, close to the linear feeding component, of the brake block. The locking sheet extends to the position over the upper end face of the linear feeding component when the output portion is in the contraction state. A through positioning hole is formed in the locking sheet. The locking sheet further comprises a locking sleeve.
Description
Technical field
The present invention relates to the technical field of Pumping Unit, the band auto-lock function of a kind of oil pumper
Brake structure.
Background technology
Existing beam pumping unit, its motor and reduction box independently occupy a piece of land, in practical operation
Time floor space relatively big, and the direct external crank structure of output shaft of reduction box, in real process, take out
Occur emergency to need to shut down at once during oil, and between existing motor and reduction box, there is no brake structure,
Cause oil pumper quickly not quit work, and then produce follow-up bad chain reaction, and existing walking beam
Even if formula oil pumper has brake to be also generally positioned at motor side, after motor side stops, reduction box still can turn
Dynamic a period of time, this structure still cannot guarantee that beam pumping unit quickly quits work.
Summary of the invention
For the problems referred to above, the invention provides the brake structure of the band auto-lock function of a kind of oil pumper, its
The floor space making whole oil pumper is little, and guarantees that beam pumping unit quickly quits work, Jin Erbao
Being normally carried out of card oil transportation.
The brake structure of the band auto-lock function of a kind of oil pumper, its technical scheme is such that it and includes electricity
Machine, it is characterised in that: described motor is specially direct-drive permanent-magnetism motor, described direct-drive permanent-magnetism motor bearing in
Support, the wherein side of the output shaft of described direct-drive permanent-magnetism motor is set with brake disc, and described support is corresponding
Brake block bearing is installed in the side of described brake disc, described brake block bearing towards described brake disc
Position be fastened with straight-line feed parts, straight-line feed parts do towards the outer face of described brake disc away from
Or near motion, the output of described straight-line feed parts is partially toward the outer face of described brake disc and arranges,
The output part of described straight-line feed parts is fastened with brake block, and the brake lining territory of described brake block is towards institute
The outer face stating brake disc is arranged, described brake block is disposed with lock near the end face of described straight-line feed parts
Tight sheet, when output is partially in contraction state, described stay extends to be positioned at described straight-line feed parts
The surface of upper surface, the hole, location that described stay is provided through, it also includes locking sleeve,
Described locking sleeve is installed in the upper surface of described straight-line feed parts, when output is partially in contraction state
Described locking sleeve is positioned at the underface in hole, described location, and described locking sleeve has lock-bit screwed hole,
When output is partially in contraction state, clamping screw is anchored on described lock-bit screw thread after running through hole, described location
Hole.
It is further characterized by
The top of described clamping screw is provided with butterfly handle, it is simple to workman releases the self-locking to brake block；
The front end of the output part of described straight-line feed parts is fastened with flange mounting disc, and described flange is installed
The outer face of dish is fastenedly connected the inner face of described brake block by screw, it is ensured that brake block can conveniently enter
Row is changed；
Described straight-line feed parts are cylinder structure, the position towards described brake disc of described brake block bearing
Putting and be fastened with described cylinder structure, the piston rod of described cylinder structure is towards the outer face cloth of described brake disc
Putting, described piston rod is fastened with brake block, the brake lining territory of described brake block is towards described brake disc
Outer face is arranged, is circumscribed with oil pump structure by oil pipe in the cavity of described cylinder structure；
Described straight-line feed parts are electricity cylinder structure, the position towards described brake disc of described brake block bearing
Putting and be fastened with described electricity cylinder structure, the piston rod of described electricity cylinder structure is towards the outer face cloth of described brake disc
Putting, the piston rod of described electricity cylinder structure is fastened with brake block, the brake lining territory of described brake block is towards institute
The outer face stating brake disc is arranged, described electricity cylinder is by electric wire external power supply；
Described straight-line feed parts are air cylinder structure, the position towards described brake disc of described brake block bearing
Putting and be fastened with described air cylinder structure, the piston rod of described air cylinder structure is towards the outer face cloth of described brake disc
Putting, the piston rod of described air cylinder structure is fastened with brake block, the brake lining territory of described brake block is towards institute
The outer face stating brake disc is arranged, is circumscribed with compressed gas source by trachea in the cavity of described air cylinder structure；
Described brake disc is anchored on the output shaft of described direct-drive permanent-magnetism motor by key location；
It also includes that locking gear, described locking gear are set in the output shaft of described direct-drive permanent-magnetism motor
Opposite side, the upper surface of described support is provided with lock shaft corresponding to the lower position of locking gear, described
Lock shaft is plugged in the pilot hole of vertically-guided seat of correspondence position, and the upper surface of described lock shaft is arranged
Locking teeth, the lower surface of described lock shaft is had to be hinged with one end of the first drive rod, described first drive rod
The outfan of the other end hinged L-type drive rod, the input of described L-type drive rod is fastenedly connected with and drives
Fixed handle, the core of described L-type drive rod connects the sidewall of described support by rotating shaft, drives hands
The end of handle, near support action, drives L-type drive rod to rotate, and then will locking by the first drive rod
Axle lifting so that the locking teeth of lock shaft engages described locking gear, it is ensured that whole output shaft is in locking
State so that the crank of beam pumping unit will not rotate, and then guarantee that beam pumping unit is in
Arrested state.
After using technique scheme, beam pumping unit is when normally working, and clamping screw runs through described
Location is anchored on described lock-bit screwed hole behind hole so that brake block will not touch brake disc, though straight line
The power input of infeed mean is broken down, it is possible to guarantee that beam pumping unit, in normal work, works as walking beam
When occurring emergency to need to shut down during formula oil pumping, close the clamping screw that gets loose while motor, rear-guard
The output part of dynamic straight-line feed parts so that the outer face of brake disc is close in the brake lining territory of brake block,
Make brake block that brake disc carry out brake, and then complete the Quick brake for motor output shaft,
It guarantees that beam pumping unit quickly quits work, and then ensures being normally carried out of oil transportation, and due to
Have employed direct-drive permanent-magnetism motor, direct-drive permanent-magnetism motor bearing is in support, the output shaft two of direct-drive permanent-magnetism motor
Hold direct external crank structure so that the floor space of whole beam pumping unit is little, it is simple to arrange.
Accompanying drawing explanation
Fig. 1 is the front view structural representation (bottom of lock shaft drives structure to be not drawn into) of the present invention；
Fig. 2 is the right view structural representation of Fig. 1；
Fig. 3 is the left view structural representation of Fig. 1；
Fig. 4 is partial enlargement structural representation at the A of Fig. 1；
In figure, the title corresponding to sequence number is as follows:
Direct-drive permanent-magnetism motor 1, support 2, output shaft 3, brake disc 4, brake block bearing 5, straight-line feed
Parts 6, output part 7, brake block 8, key 9, locking gear 10, lock shaft 11, vertically-guided seat
12, locking teeth the 13, first drive rod 14, L-type drive rod 15, driving handle 16, oil pipe 17, oil
Pump configuration 18, rotating shaft 19, stay 20, location hole 21, locking sleeve 22, lock-bit screwed hole 23,
Clamping screw 24, butterfly handle 25, flange mounting disc 26, screw 27.
Detailed description of the invention
The brake structure of the band auto-lock function of a kind of oil pumper, is shown in Fig. 1～Fig. 4: it includes direct-drive permanent-magnetism electricity
Machine 1, direct-drive permanent-magnetism motor 1 is supported on support 2, the wherein side of the output shaft 3 of direct-drive permanent-magnetism motor 1
Being set with brake disc 4, support 2 is provided with brake block bearing 5, brake block corresponding to the side of brake disc 4
The position towards brake disc 4 of bearing 5 is fastened with straight-line feed parts 6, and straight-line feed parts 6 are towards stopping
The outer face of hull 4 is done away from or near motion, the output part 7 of straight-line feed parts 6 is towards brake
The outer face of dish 4 is arranged, the output part 7 of straight-line feed parts 6 is fastened with brake block 8, brake block 8
Brake lining territory towards brake disc 4 outer face arrange.Brake block 8 is near the end face of straight-line feed parts
Being disposed with stay 20, when output part 7 is in contraction state, stay 20 extends to be positioned at straight-line feed
The surface of the upper surface of parts 6, the hole, location 21 that stay 20 is provided through, it also includes lock
Tight sleeve 22, locking sleeve 22 is installed in the upper surface of straight-line feed parts 6, and output part 7 is in receipts
During contracting state, locking sleeve 22 is positioned at the underface in hole 21, location, and locking sleeve 22 has lock-bit screw thread
Hole 23, when output part 7 is in contraction state, clamping screw 24 is anchored on lock-bit after running through hole 21, location
Screwed hole 23.
The top of clamping screw 24 is provided with butterfly handle 25, it is simple to workman releases the self-locking to brake block 8；
The front end of the output part 7 of straight-line feed parts 6 is fastened with flange mounting disc 26, flange mounting disc
The outer face of 26 is fastenedly connected the inner face of brake block 8 by screw 27, it is ensured that brake block 8 can facilitate
It is replaced；
Brake disc 4 is anchored on the output shaft 3 of direct-drive permanent-magnetism motor 1 by key 9 location；
It also includes that locking gear 10, locking gear 10 are set in the output shaft 3 of direct-drive permanent-magnetism motor 1
Opposite side, the upper surface of support 2 is provided with lock shaft 11 corresponding to the lower position of locking gear 10, lock
Mandrel 11 is plugged in the pilot hole of vertically-guided seat 12 of correspondence position, and the upper surface of lock shaft 11 sets
It is equipped with locking teeth 13, one end of hinged first drive rod 14 in lower surface of lock shaft 11, the first drive rod
The outfan of the other end hinged L-type drive rod 15 of 14, the input of L-type drive rod 15 is fastenedly connected
Having driving handle 16, the core of L-type drive rod 15 connects the sidewall of support 1 by rotating shaft 19,
The end of driving handle 16 near support 1 action, drives L-type drive rod 15 to rotate, and then by the
One drive rod 14 is by lock shaft 11 lifting so that the locking teeth 13 of lock shaft 11 engages locking gear 10,
Guarantee that whole output shaft 3 is in locking state so that the crank of beam pumping unit will not rotate,
And then guarantee that beam pumping unit is in arrested state.
Specific embodiment one, is shown in that Fig. 1～Fig. 4: straight-line feed parts 6, for cylinder structure, export part 7
For piston rod, the position towards brake disc 4 of brake block bearing 5 is fastened with cylinder structure, cylinder structure
Piston rod towards brake disc 4 outer face arrange, piston rod is fastened with brake block 8, brake block 8
Brake lining territory is arranged towards the outer face of brake disc 4, is circumscribed with by oil pipe 17 in the cavity of cylinder structure
Oil pump structure 18；
Specific embodiment two: straight-line feed parts 6 be electricity cylinder structure, brake block bearing 5 towards brake
The position of dish 4 is fastened with electricity cylinder structure, and the piston rod of electricity cylinder structure is arranged towards the outer face of brake disc 4,
Being fastened with brake block 8 on the piston rod of electricity cylinder structure, the brake lining territory of brake block 8 is towards outside brake disc 4
End face is arranged, electricity cylinder is by electric wire external power supply；
Specific embodiment three: straight-line feed parts 6 are air cylinder structure, brake block bearing 5 towards brake disc 4
Position be fastened with air cylinder structure, the piston rod of air cylinder structure towards brake disc 4 outer face arrange, cylinder
Being fastened with brake block 8 on the piston rod of structure, the brake lining territory of brake block 8 is towards the outer face cloth of brake disc 4
Put, in the cavity of air cylinder structure, be circumscribed with compressed gas source by trachea.
Above the specific embodiment of the present invention is described in detail, but content has been only the invention
Preferred embodiment, it is impossible to be considered the practical range for limiting the invention.All according to the invention
Impartial change that application range is made and improvement etc., all should still belong to the present invention patent covering scope it
In.
Claims (8)
1. a brake structure for the band auto-lock function of oil pumper, it includes motor, it is characterised in that: institute
State motor and be specially direct-drive permanent-magnetism motor, described direct-drive permanent-magnetism motor bearing in support, described direct-drive permanent-magnetism
The wherein side of the output shaft of motor is set with brake disc, and described support is corresponding to the side of described brake disc
Being provided with brake block bearing, the position towards described brake disc of described brake block bearing is fastened with straight line and enters
To parts, straight-line feed parts do towards the outer face of described brake disc away from or near motion, described directly
The output of line infeed mean is partially toward the outer face of described brake disc and arranges, described straight-line feed parts
Output part is fastened with brake block, and the brake lining territory of described brake block is towards the outer face cloth of described brake disc
Putting, described brake block is disposed with stay near the end face of described straight-line feed parts, and output is partially in receipts
During contracting state, described stay extends to be positioned at the surface of the upper surface of described straight-line feed parts, described
The hole, location being provided through on stay, it also includes that locking sleeve, described locking sleeve are installed in institute
Stating the upper surface of straight-line feed parts, when output is partially in contraction state, described locking sleeve is positioned at described
The underface in hole, location, described locking sleeve has lock-bit screwed hole, and output is partially in contraction state
Time clamping screw run through hole, described location after be anchored on described lock-bit screwed hole.
The brake structure of the band auto-lock function of a kind of oil pumper the most as claimed in claim 1, its feature exists
In: the top of described clamping screw is provided with butterfly handle.
The brake structure of the band auto-lock function of a kind of oil pumper the most as claimed in claim 1, its feature exists
In: the front end of the output part of described straight-line feed parts is fastened with flange mounting disc, and described flange is installed
The outer face of dish is fastenedly connected the inner face of described brake block by screw.
The brake structure of the band auto-lock function of a kind of oil pumper the most as claimed in claim 1, its feature exists
In: described straight-line feed parts are cylinder structure, the position towards described brake disc of described brake block bearing
Putting and be fastened with described cylinder structure, the piston rod of described cylinder structure is towards the outer face cloth of described brake disc
Putting, described piston rod is fastened with brake block, the brake lining territory of described brake block is towards described brake disc
Outer face is arranged, is circumscribed with oil pump structure by oil pipe in the cavity of described cylinder structure.
The brake structure of the band auto-lock function of a kind of oil pumper the most as claimed in claim 1, its feature exists
In: described straight-line feed parts are electricity cylinder structure, the position towards described brake disc of described brake block bearing
Putting and be fastened with described electricity cylinder structure, the piston rod of described electricity cylinder structure is towards the outer face cloth of described brake disc
Putting, the piston rod of described electricity cylinder structure is fastened with brake block, the brake lining territory of described brake block is towards institute
The outer face stating brake disc is arranged, described electricity cylinder is by electric wire external power supply.
The brake structure of the band auto-lock function of a kind of oil pumper the most as claimed in claim 1, its feature exists
In: described straight-line feed parts are air cylinder structure, the position towards described brake disc of described brake block bearing
Putting and be fastened with described air cylinder structure, the piston rod of described air cylinder structure is towards the outer face cloth of described brake disc
Putting, the piston rod of described air cylinder structure is fastened with brake block, the brake lining territory of described brake block is towards institute
The outer face stating brake disc is arranged, is circumscribed with compressed gas source by trachea in the cavity of described air cylinder structure.
The brake structure of the band auto-lock function of a kind of oil pumper the most as claimed in claim 1, its feature exists
In: described brake disc is anchored on the output shaft of described direct-drive permanent-magnetism motor by key location.
The brake structure of the band auto-lock function of a kind of oil pumper the most as claimed in claim 1, its feature exists
In: it also includes that locking gear, described locking gear are set in the output shaft of described direct-drive permanent-magnetism motor
Opposite side, the upper surface of described support is provided with lock shaft corresponding to the lower position of locking gear, described
Lock shaft is plugged in the pilot hole of vertically-guided seat of correspondence position, and the upper surface of described lock shaft is arranged
Locking teeth, the lower surface of described lock shaft is had to be hinged with one end of the first drive rod, described first drive rod
The outfan of the other end hinged L-type drive rod, the input of described L-type drive rod is fastenedly connected with and drives
Fixed handle, the core of described L-type drive rod connects the sidewall of described support by rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280499.5A CN105952817B (en) | 2016-05-03 | 2016-05-03 | A kind of brake structure with self-locking function of pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280499.5A CN105952817B (en) | 2016-05-03 | 2016-05-03 | A kind of brake structure with self-locking function of pumping unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105952817A true CN105952817A (en) | 2016-09-21 |
| CN105952817B CN105952817B (en) | 2018-08-24 |
Family
ID=56916128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610280499.5A Active CN105952817B (en) | 2016-05-03 | 2016-05-03 | A kind of brake structure with self-locking function of pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105952817B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2826005Y (en) * | 2005-10-10 | 2006-10-11 | 大庆油田有限责任公司 | Brake locking device for oil pumping unit |
| CN202612451U (en) * | 2012-03-26 | 2012-12-19 | 濮阳市信宇石油机械化工有限公司 | Pumping unit brake locking device |
| CN204238917U (en) * | 2014-11-27 | 2015-04-01 | 大庆派司石油科技有限公司 | Oil pumper direct driving device |
| US20150362035A1 (en) * | 2014-06-17 | 2015-12-17 | Yen-Hong Wong | Hydraulic auxiliary brake device of motor used for oil production |
| CN204921770U (en) * | 2015-08-06 | 2015-12-30 | 靖江市强林石油钻采设备制造有限公司 | Beam -pumping unit stopper |
| CN205047197U (en) * | 2015-09-11 | 2016-02-24 | 武汉市威尔贝特科技有限公司 | Walking beam formula intelligence oil pumping system |
| CN205654741U (en) * | 2016-05-03 | 2016-10-19 | 苏州贝得科技有限公司 | Brake structure of taking self -locking function of beam -pumping unit |
-
2016
- 2016-05-03 CN CN201610280499.5A patent/CN105952817B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2826005Y (en) * | 2005-10-10 | 2006-10-11 | 大庆油田有限责任公司 | Brake locking device for oil pumping unit |
| CN202612451U (en) * | 2012-03-26 | 2012-12-19 | 濮阳市信宇石油机械化工有限公司 | Pumping unit brake locking device |
| US20150362035A1 (en) * | 2014-06-17 | 2015-12-17 | Yen-Hong Wong | Hydraulic auxiliary brake device of motor used for oil production |
| CN204238917U (en) * | 2014-11-27 | 2015-04-01 | 大庆派司石油科技有限公司 | Oil pumper direct driving device |
| CN204921770U (en) * | 2015-08-06 | 2015-12-30 | 靖江市强林石油钻采设备制造有限公司 | Beam -pumping unit stopper |
| CN205047197U (en) * | 2015-09-11 | 2016-02-24 | 武汉市威尔贝特科技有限公司 | Walking beam formula intelligence oil pumping system |
| CN205654741U (en) * | 2016-05-03 | 2016-10-19 | 苏州贝得科技有限公司 | Brake structure of taking self -locking function of beam -pumping unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105952817B (en) | 2018-08-24 |
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