CN212154733U - Electric control brake protector for oil pumping machine - Google Patents
Electric control brake protector for oil pumping machine Download PDFInfo
- Publication number
- CN212154733U CN212154733U CN202020576790.9U CN202020576790U CN212154733U CN 212154733 U CN212154733 U CN 212154733U CN 202020576790 U CN202020576790 U CN 202020576790U CN 212154733 U CN212154733 U CN 212154733U
- Authority
- CN
- China
- Prior art keywords
- brake
- pull rod
- pumping unit
- locking nut
- adjusting
- 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.)
- Active
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model relates to a beam-pumping unit brake equipment technical field is an automatically controlled braking protection device of beam-pumping unit, including frame, brake pull rod, braking handle, hand brake device, electric brake pull rod, actuating mechanism and control module, be equipped with on the frame with beam-pumping unit transmission fixed mounting brake axle together, brake axle front end fixed mounting has the brake wheel, the brake axle middle part outside install rather than assorted brake drum, install the brake pull rod that the downward swing can drive the brake drum locking brake axle on the brake drum, brake pull rod left end fixed mounting has the braking handle. The utility model discloses simple structure is reliable, and design benefit through setting up left slotted hole and right slotted hole, can realize the brake purpose that manual brake and electric brake do not influence each other, has both satisfied the brake needs of normal during operation, also satisfies the automatically controlled brake guard action when taking place the suspension point and lose the year accident, and simple structure is reliable, and application scope is wide.
Description
Technical Field
The utility model relates to a brake equipment for beam-pumping unit is an automatically controlled braking protection device of beam-pumping unit.
Background
The pumping unit is the main pumping unit equipment in the petroleum industry, and the pumping unit brake is an important device for ensuring the safe and normal operation of the pumping unit. The majority of the existing pumping units adopt mechanical hand brakes, and have the characteristics of simplicity and reliability, but the defects are as follows: the pumping unit often needs operating personnel to shut down and brake to the well site in the use, and manpower and materials are wasted to the working process, just the problem that can not in time brake the outage appears under the condition that the pumping unit distribution of pumping unit unmanned field on duty or operation is wider, has brought the hidden danger for safe operation.
Disclosure of Invention
The utility model provides an automatically controlled braking protection device of beam-pumping unit has overcome above-mentioned prior art not enough, and it can effectively solve the problem that can not remote control, hand brake and electric brake can not separately brake, economic benefits is poor that the brake of current beam-pumping unit exists.
The technical scheme of the utility model is realized through following measure: an electric control brake protection device of a pumping unit comprises a base, a brake shaft, a brake wheel, a brake drum, a brake pull rod, a brake handle, a left slide block, a right slide block, a manual brake device, an electric brake pull rod, an actuating mechanism and a control module, wherein the base is provided with the brake shaft fixedly installed with a pumping unit transmission device, the front end of the brake shaft is fixedly provided with the brake wheel, the outer side of the middle part of the brake shaft is provided with the brake drum matched with the brake shaft, the brake drum is provided with the brake pull rod capable of swinging downwards to drive the brake drum to lock the brake shaft, the left end of the brake pull rod is fixedly provided with the brake handle, the brake handle is provided with a left long round hole and a right long round hole which are communicated from front to back and are vertically arranged at intervals, the left long round hole is internally provided with the left slide block which can move upwards and downwards and, the right slotted hole is internally provided with a right sliding block which can move up and down in the inner side and the front end and the rear end of which are respectively positioned at the front side and the rear side of the brake handle, the front end of the right sliding block is installed with the upper end of an electric brake pull rod, the lower end of the electric brake pull rod is fixedly provided with an executing mechanism which can drive the brake handle to stop the pumping unit, and the executing mechanism is electrically connected with a control module which can monitor the rotating speed of a brake wheel and can enable the executing mechanism to.
The following are further optimization or/and improvement of the technical scheme of the utility model:
the actuating mechanism can comprise an armature, a reset spring, a force limiter and an electromagnet, the lower end of an electric brake pull rod is fixedly installed with the upper end of the force limiter, the electromagnet is fixedly installed below the force limiter, the armature matched with the electromagnet is arranged in the electromagnet, the upper end of the armature is fixedly installed with the lower end of the force limiter, the reset spring with the upper end fixedly installed with the lower end of the force limiter is sleeved on the outer side of the armature, the lower end of the reset spring is fixedly installed with the upper end of the electromagnet, and the signal input end of the electromagnet is electrically connected with the signal output end of a control module which can enable the electromagnet to be electrified and enable the motor of.
The control module can comprise a velometer and a counter, at least two rim grooves used for counting are arranged on the outer edge of the brake wheel along the circumference, the velometer facing the rim grooves is fixedly mounted on the outer side of the brake wheel, the signal output end of the velometer is electrically connected with the signal input end of the counter and the signal input end of the motor of the pumping unit respectively, and the signal output end of the counter is electrically connected with the signal input end of the electromagnet.
The manual brake device further comprises an induction switch, the induction switch capable of detecting whether the manual brake device is in a brake or non-brake state is fixedly arranged below the manual brake device, and the output end of the induction switch is electrically connected with the input end of the counter.
The hand brake device comprises a hand brake pull rod, a first connecting arm, a hand brake support, a first articulated shaft, a second connecting arm, a connecting rod, a hand brake handle, a second articulated shaft and a hand brake operating frame, wherein the front end of a left slide block is fixedly arranged with the upper part of the hand brake pull rod capable of adjusting the length, the lower end of the hand brake pull rod is hinged with the right end of the first connecting arm, the hand brake support is fixedly arranged in front of the left part of the first connecting arm, the first articulated shaft capable of rotating clockwise or anticlockwise is arranged on the upper part of the hand brake support, the rear end of the first articulated shaft corresponding to the rear position of the hand brake support is fixedly arranged with the left part of the first connecting arm, the front end of the first articulated shaft corresponding to the front position of the hand brake support is fixedly arranged with the upper end of the second connecting arm, the lower end of the second connecting arm is hinged with the connecting rod with the left part of which can adjust the length, the left end of the connecting, the hand brake handle lower extreme passes through the second articulated shaft and can control pivoted installation on hand brake control rack.
The inductive switch can be fixedly arranged below the right part of the first connecting arm.
The hand brake pull rod can comprise a first connecting pull rod, a first adjusting pull rod, a first locking nut and a first fixing pull rod, the front end of the left sliding block is installed together with the upper portion of the first fixing pull rod, the lower end of the first fixing pull rod is fixedly installed together with the upper end of the first adjusting pull rod, threads are arranged on the outer side of the lower portion of the first adjusting pull rod, the first locking nut is installed at the lower end of the first adjusting pull rod and used for locking between the first adjusting pull rod and the first connecting pull rod, and the lower end of the first connecting pull rod is installed together with the right end of the first connecting arm in a hinged mode.
The connecting rod can comprise a second connecting pull rod, a third connecting pull rod, a second locking nut, a third locking nut and a second adjusting pull rod, the lower end of the second connecting arm is hinged to the right end of the second connecting pull rod, the left part of the second connecting pull rod is fixedly provided with the second locking nut, the second locking nut is internally provided with the second adjusting pull rod which is connected with the second locking nut through threads, the left end of the second adjusting pull rod is connected with the third locking nut through threads, the outer side of the third locking nut is fixedly arranged with the right part of the third connecting pull rod, and the left end of the third connecting pull rod is hinged to the lower part of the hand brake handle.
The utility model discloses simple structure is reliable, and design benefit through setting up left slotted hole and right slotted hole, can realize the brake purpose that manual brake and electric brake do not influence each other, has both satisfied the brake needs of normal during operation, also satisfies the automatically controlled brake guard action when taking place the suspension point and lose the year accident, and simple structure is reliable, and application scope is wide.
Drawings
Fig. 1 is a schematic structural view of the preferred embodiment of the present invention.
Fig. 2 is a block diagram of the circuit configuration of fig. 1.
The codes in the figures are respectively: the brake device comprises a brake wheel 1, a brake pull rod 2, a brake handle 3, an electric brake pull rod 4, a left slide block 5, a right slide block 6, an armature 7, a return spring 8, a force limiter 9, an electromagnet 10, an inductive switch 11, a velometer 12, a counter 13, a first connecting arm 14, a hand brake support 15, a first articulated shaft 16, a second connecting arm 17, a brake shaft 18, a hand brake handle 19, a second articulated shaft 20, a hand brake operating frame 21, a first connecting pull rod 22, a first adjusting pull rod 23, a first locking nut 24, a first fixing pull rod 25, a second connecting pull rod 26, a second locking nut 27, a third locking nut 28, a second adjusting pull rod 29, a third connecting pull rod 30, a wheel flange groove 31 and a machine base 32.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention will be further described with reference to the following examples and drawings:
as shown in attached figures 1 and 2, the electric control brake protection device of the oil pumping unit comprises a base 32, a brake pull rod 2, a brake handle 3, a manual brake device, an electric brake pull rod 4, an actuating mechanism and a control module, wherein a brake shaft 18 fixedly installed with a transmission device of the oil pumping unit is arranged on the base 32, a brake wheel 1 is fixedly installed at the front end of the brake shaft 18, a brake drum matched with the brake shaft 18 is installed at the outer side of the middle part of the brake shaft 18, the brake pull rod 2 which can swing downwards to drive the brake drum to lock the brake shaft 18 is installed on the brake drum, the brake handle 3 is fixedly installed at the left end of the brake pull rod 2, a left long round hole and a right long round hole which are communicated from front to back and are vertically arranged are arranged at left to right at intervals on the brake handle 3, a left slide block 5 which can move up and down at the inner side, the right slotted hole is internally provided with a right sliding block 6 which can move up and down in the inner side of the right slotted hole and the front and back ends of which are respectively positioned at the front and back sides of the brake handle 3, the front end of the right sliding block 6 is installed with the upper end of an electric brake pull rod 4, the lower end of the electric brake pull rod 4 is fixedly provided with an actuating mechanism which can drive the brake handle 3 to stop the pumping unit, and the actuating mechanism is electrically connected with a control module which can monitor the rotating speed of the brake wheel 1 and can enable the actuating mechanism to act.
The base 32, the brake shaft 18, the brake drum and the brake pull rod 2 are all known in the prior art according to requirements, such as a brake device of an oil pumping unit. In the using process, if the pumping unit is overhauled on site, the pumping unit is stopped by using the manual brake device, the control module is triggered to cut off the power of the motor of the pumping unit, the maintenance work of the pumping unit is in a safe state, and after the site maintenance is finished, the motor power supply of the pumping unit is started after the manual brake device is recovered, so that the pumping unit is operated. When the beam-pumping unit normally operates, control module can detect the rotational speed of brake wheel 1, if it is overspeed because of the beam-pumping unit loses the load, then trigger actuating mechanism and shutdown protection, thereby play the effect of safety protection beam-pumping unit equipment, enable manual brake device and electric brake pull rod 4 independent motion through setting up two slotted holes, each other does not influence, through setting up actuating mechanism and the control module electric connection that can monitor the rotational speed of brake wheel 1 and enable the actuating mechanism action together, can accomplish monitoring and protection to beam-pumping unit operating condition under unmanned on duty state. The utility model discloses simple structure is reliable, and design benefit through setting up left slotted hole and right slotted hole, can realize the brake purpose that manual brake and electric brake do not influence each other, has both satisfied the brake needs of normal during operation, also satisfies the automatically controlled brake guard action when taking place the suspension point and lose the year accident, and simple structure is reliable, and application scope is wide.
The electric control brake protection device of the oil pumping unit can be further optimized or/and improved according to actual requirements:
as shown in the attached drawings 1 and 2, the actuating mechanism comprises an armature 7, a reset spring 8, a force limiter 9 and an electromagnet 10, the lower end of an electric brake pull rod 4 is fixedly installed with the upper end of the force limiter 9, the electromagnet 10 is fixedly installed below the force limiter 9, the armature 7 matched with the electromagnet 10 is arranged in the electromagnet 10, the upper end of the armature 7 is fixedly installed with the lower end of the force limiter 9, the reset spring 8 with the upper end fixedly installed with the lower end of the force limiter 9 is sleeved on the outer side of the armature 7, the lower end of the reset spring 8 is fixedly installed with the upper end of the electromagnet 10, and the signal input end of the electromagnet 10 is electrically connected with the signal output end of a control module which can electrify the electromagnet and can.
The return spring 8 is a prior art spring, such as a compression spring, and the force limiter 9 is a prior art spring, such as a tension limiter of the type VM105-320, as desired. In the using process, under the normal working state of the oil pumping unit, the armature 7 is separated from the electromagnet 10 under the action of the return spring 8, and under the condition that the oil pumping unit is out of load and is in an overspeed state, the control module enables the electromagnet 10 to be electrified, the electromagnet 10 drives the armature 7 and the force limiter 9 to move downwards, and finally the electric brake pull rod 4 drives the brake handle 3 to move, so that the electric brake is realized.
As shown in fig. 1 and 2, the control module includes a speed meter 12 and a counter 13, at least two rim grooves 31 for counting are provided along the circumference on the outer side edge of the brake wheel 1, the speed meter 12 facing the rim grooves 31 is fixedly installed on the outer side of the brake wheel 1, the signal output end of the speed meter 12 is electrically connected with the signal input end of the counter 13 and the signal input end of the motor of the pumping unit, respectively, and the signal output end of the counter 13 is electrically connected with the signal input end of the electromagnet 10.
The tachometer 12 and counter 13 are known in the art, such as an intelligent counter model SF9648J, as required. In the use, through such setting, can real-time detection beam-pumping unit's running state, if the rotational speed of brake wheel 1 is too high, velometer 12 and counter 13 can break off the power of the motor of beam-pumping unit, are convenient for protect the beam-pumping unit.
As shown in fig. 1 and 2, the manual brake device further comprises an inductive switch 11, the inductive switch 11 capable of detecting whether the manual brake device is in a braking or non-braking state is fixedly installed below the manual brake device, and an output end of the inductive switch 11 is electrically connected with an input end of a counter 13.
The inductive switch 11 is a known switch, such as a delaunay travel switch model number LXK3-20H/T, as required. In the use process, through the arrangement, the pumping unit can be ensured to be locked in a stop state, and the safety of the pumping unit in the maintenance process is improved.
As shown in figure 1, the hand brake device comprises a hand brake pull rod, a first connecting arm 14, a hand brake support 15, a first articulated shaft 16, a second connecting arm 17, a connecting rod, a hand brake handle 19, a second articulated shaft 20 and a hand brake control frame 21, wherein the front end of a left slide block 5 is fixedly arranged with the upper part of the hand brake pull rod capable of adjusting the length, the lower end of the hand brake pull rod is hinged with the right end of the first connecting arm 14, the hand brake support 15 is fixedly arranged in front of the left part of the first connecting arm 14, the first articulated shaft 16 capable of rotating clockwise or anticlockwise is arranged on the upper part of the hand brake support 15, the rear end of the first articulated shaft 16 corresponding to the rear part of the hand brake support 15 is fixedly arranged with the left part of the first connecting arm 14, the front end of the first articulated shaft 16 corresponding to the front part of the hand brake support 15 is fixedly arranged with the upper end of the second connecting arm 17, the lower end of the second articulated shaft 17 is provided with, the upper end is located the manual brake lever 19 of its top in the articulated installation of connecting rod left end, and manual brake lever 19 lower extreme passes through second articulated shaft 20 and can control pivoted installation on manual brake control rack 21.
In the use, through such setting, during field maintenance, rotate to the left through hand brake lever 19 and brake to the beam-pumping unit, rotate to the right and then loosen and reset.
As shown in fig. 1 and 2, the inductive switch 11 is fixedly mounted below the right portion of the first connecting arm 14.
In the use, through such setting, during the field maintainance, brake to the beam-pumping unit through handbrake brake lever 19 to the left turn, can trigger inductive switch 11 simultaneously, the power of the motor of disconnection beam-pumping unit prevents that remote operation from starting to the beam-pumping unit mistake, can realize the interlocking between manual and the electric brake, improves the utility model discloses a reliability.
As shown in fig. 1, the hand brake pull rod includes a first connecting pull rod 22, a first adjusting pull rod 23, a first locking nut 24 and a first fixing pull rod 25, the front end of the left slider 5 is mounted on the upper portion of the first fixing pull rod 25, the lower end of the first fixing pull rod 25 is fixedly mounted on the upper end of the first adjusting pull rod 23, threads are arranged on the outer side of the lower portion of the first adjusting pull rod 23, the first locking nut 24 is mounted on the lower end of the first adjusting pull rod 23 and used for locking and locking between the first adjusting pull rod 23 and the first connecting pull rod 22, and the lower end of the first connecting pull rod 22 is hinged to the right end of the first connecting arm 14.
In the use, through such setting, can be convenient for adjust the stroke of brake lever 3 in the braking process, improve the sensitivity of beam-pumping unit in the braking process.
As shown in fig. 1, the connecting rod includes a second connecting rod 26, a third connecting rod 30, a second lock nut 27, a third lock nut 28 and a second adjusting rod 29, the lower end of the second connecting arm 17 is hinged to the right end of the second connecting rod 26, the left portion of the second connecting rod 26 is fixedly provided with the second lock nut 27, the second locking nut 27 is internally provided with the second adjusting rod 29 which is connected to the second locking nut 27 through a thread, the left end of the second adjusting rod 29 is connected to the third lock nut 28 through a thread, the outer side of the third lock nut 28 is fixedly provided with the right portion of the third connecting rod 30, and the left end of the third connecting rod 30 is hinged to the corresponding position of the lower portion of the hand brake lever 19.
In the use, through such setting, can be convenient for adjust the stroke of manual brake lever 19 when manual brake, can make manual brake and electric brake can realize chain all the time, improve the utility model discloses reliability in the use.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
Claims (10)
1. An electric control brake protection device of a pumping unit is characterized by comprising a base, a brake pull rod, a brake handle, a manual brake device, an electric brake pull rod, an actuating mechanism and a control module, wherein a brake shaft fixedly installed with a transmission device of the pumping unit is arranged on the base, a brake wheel is fixedly installed at the front end of the brake shaft, a brake drum matched with the brake shaft is installed on the outer side of the middle part of the brake shaft, the brake drum is provided with the brake pull rod capable of swinging downwards to drive the brake drum to lock the brake shaft, the brake handle is fixedly installed at the left end of the brake pull rod, a left long circular hole and a right long circular hole which are communicated from front to back and are vertically arranged are arranged on the left and right sides of the brake shaft at intervals, a left slide block which can move upwards and downwards on the inner side of the left long circular hole and has the front and back ends respectively positioned on the front and back sides of the brake handle is arranged in, the front end of the right sliding block is installed together with the upper end of an electric brake pull rod, the lower end of the electric brake pull rod is fixedly provided with an actuating mechanism which can drive a brake handle to stop the pumping unit, and the actuating mechanism is electrically connected with a control module which can monitor the rotating speed of a brake wheel and can enable the actuating mechanism to act.
2. The electric control brake protection device of the oil pumping unit according to claim 1, wherein the actuator comprises an armature, a reset spring, a force limiter and an electromagnet, the lower end of the electric brake pull rod is fixedly installed with the upper end of the force limiter, the electromagnet is fixedly installed below the force limiter, the armature matched with the electromagnet is arranged in the electromagnet, the upper end of the armature is fixedly installed with the lower end of the force limiter, the reset spring with the upper end fixedly installed with the lower end of the force limiter is sleeved outside the armature, the lower end of the reset spring is fixedly installed with the upper end of the electromagnet, and the signal input end of the electromagnet is electrically connected with the signal output end of the control module which can electrify the electromagnet and can cut off the power of the motor.
3. The electric control brake protection device for the oil pumping unit of claim 2, wherein the control module comprises a speed detector and a counter, at least two rim grooves for counting are formed in the outer edge of the brake wheel along the circumference, the speed detector facing the rim grooves is fixedly installed on the outer side of the brake wheel, the signal output end of the speed detector is electrically connected with the signal input end of the counter and the signal input end of the motor of the oil pumping unit respectively, and the signal output end of the counter is electrically connected with the signal input end of the electromagnet.
4. The electric control brake protection device of the oil pumping unit according to claim 3, further comprising an inductive switch, wherein the inductive switch capable of detecting whether the manual brake device is in a brake or non-brake state is fixedly installed below the manual brake device, and an output end of the inductive switch is electrically connected with an input end of the counter.
5. The electric control brake protection device of a pumping unit according to claim 1, 2, 3 or 4, characterized in that the manual brake device comprises a hand brake pull rod, a first connecting arm, a hand brake support, a first hinge shaft, a second connecting arm, a connecting rod, a hand brake lever, a second hinge shaft and a hand brake operating bracket, the front end of the left slider is fixedly arranged with the upper part of the hand brake pull rod capable of adjusting the length, the lower end of the hand brake pull rod is hinged with the right end of the first connecting arm, the hand brake support is fixedly arranged in front of the left part of the first connecting arm, the first hinge shaft capable of rotating clockwise or anticlockwise is arranged on the upper part of the hand brake support, the rear end of the first hinge shaft corresponding to the rear position of the hand brake support is fixedly arranged with the left part of the first connecting arm, the front end of the first hinge shaft corresponding to the front position of the hand brake support is fixedly arranged with the upper end of the second connecting arm, the lower end of the second connecting arm is hinged with the connecting, the upper end of the left end of the connecting rod is hinged with a hand brake lever, the upper end of the left end of the connecting rod is located above the hand brake lever, and the lower end of the hand brake lever can be installed on a hand brake operating frame in a left-right rotating mode through a second hinged shaft.
6. The electrically controlled brake protection device for oil pumping unit according to claim 5, wherein the inductive switch is fixedly installed below the right portion of the first connecting arm.
7. The electric control brake protection device for the oil pumping unit according to claim 5, wherein the hand brake pull rod comprises a first connecting pull rod, a first adjusting pull rod, a first locking nut and a first fixing pull rod, the front end of the left slider is mounted with the upper part of the first fixing pull rod, the lower end of the first fixing pull rod is fixedly mounted with the upper end of the first adjusting pull rod, threads are arranged on the outer side of the lower part of the first adjusting pull rod, the first locking nut is mounted at the lower end of the first adjusting pull rod and used for locking and locking between the first adjusting pull rod and the first connecting pull rod, and the lower end of the first connecting pull rod is hinged with the right end of the first connecting arm.
8. The electric control brake protection device for the oil pumping unit according to claim 6, wherein the hand brake pull rod comprises a first connecting pull rod, a first adjusting pull rod, a first locking nut and a first fixing pull rod, the front end of the left slider is mounted with the upper part of the first fixing pull rod, the lower end of the first fixing pull rod is fixedly mounted with the upper end of the first adjusting pull rod, threads are arranged on the outer side of the lower part of the first adjusting pull rod, the first locking nut is mounted at the lower end of the first adjusting pull rod and used for locking and locking between the first adjusting pull rod and the first connecting pull rod, and the lower end of the first connecting pull rod is hinged with the right end of the first connecting arm.
9. The electric control brake protection device for the oil pumping unit according to claim 5, wherein the connecting rod comprises a second connecting pull rod, a third connecting pull rod, a second locking nut, a third locking nut and a second adjusting pull rod, the lower end of the second connecting arm is hinged with the right end of the second connecting pull rod, the left part of the second connecting pull rod is fixedly provided with the second locking nut, the second locking nut is internally provided with the second adjusting pull rod which is connected and arranged with the second locking nut through threads, the left end of the second adjusting pull rod is connected and arranged with the third locking nut through threads, the outer side of the third locking nut is fixedly arranged with the right part of the third connecting pull rod, and the left end of the third connecting pull rod is hinged and arranged with the corresponding position of the lower part of the hand brake crank.
10. The electric control brake protection device of the oil pumping unit according to claim 6, 7 or 8, wherein the connecting rod comprises a second connecting pull rod, a third connecting pull rod, a second locking nut, a third locking nut and a second adjusting pull rod, the lower end of the second connecting arm is hinged with the right end of the second connecting pull rod, the left part of the second connecting pull rod is fixedly provided with the second locking nut, the second locking nut is internally provided with the second adjusting pull rod which is connected and arranged together through threads, the left end of the second adjusting pull rod is connected and arranged with the third locking nut through threads, the outer side of the third locking nut is fixedly arranged together with the right part of the third connecting pull rod, and the left end of the third connecting pull rod is hinged and arranged together with the corresponding position of the lower part of the hand brake handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020576790.9U CN212154733U (en) | 2020-04-17 | 2020-04-17 | Electric control brake protector for oil pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020576790.9U CN212154733U (en) | 2020-04-17 | 2020-04-17 | Electric control brake protector for oil pumping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212154733U true CN212154733U (en) | 2020-12-15 |
Family
ID=73718766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020576790.9U Active CN212154733U (en) | 2020-04-17 | 2020-04-17 | Electric control brake protector for oil pumping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212154733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263251A (en) * | 2022-07-28 | 2022-11-01 | 中国石油化工股份有限公司 | Remote automatic brake device of oil pumping unit |
| CN115923759A (en) * | 2023-01-09 | 2023-04-07 | 常州市多灵电动车辆制造有限公司 | Braking device of electric sightseeing train |
-
2020
- 2020-04-17 CN CN202020576790.9U patent/CN212154733U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263251A (en) * | 2022-07-28 | 2022-11-01 | 中国石油化工股份有限公司 | Remote automatic brake device of oil pumping unit |
| CN115263251B (en) * | 2022-07-28 | 2023-10-13 | 中国石油化工股份有限公司 | Remote automatic brake device of oil pumping unit |
| CN115923759A (en) * | 2023-01-09 | 2023-04-07 | 常州市多灵电动车辆制造有限公司 | Braking device of electric sightseeing train |
| CN115923759B (en) * | 2023-01-09 | 2023-10-20 | 常州市多灵电动车辆制造有限公司 | Brake device of electric sightseeing train |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212154733U (en) | Electric control brake protector for oil pumping machine | |
| CN208631856U (en) | Two-shipper towed elevator configured with safety return circuit detection system | |
| US7909145B2 (en) | Brake device for an elevator with monitoring capabilities | |
| CN110271936B (en) | Remote triggering reset mechanism of speed limiter | |
| CN111577219A (en) | Counter weight guide type double-horsehead oil pumping unit | |
| CN205045636U (en) | Elevator brake performance testing arrangement | |
| CN205061234U (en) | Two -way overspeed governor with unexpected function that removes of monitoring elevator car | |
| CN111645720B (en) | Intelligent switch machine capable of being autonomously controlled by train | |
| CN108002164B (en) | Elevator brake action state detection device and detection method | |
| CN111577221B (en) | Safety digital oil pumping machine | |
| CN106335764A (en) | PLC-based traction type double-rail conveyor control system for hillside orchard | |
| CN203318688U (en) | Boarding bridge lifting device adopting double braking mechanisms | |
| CN208603536U (en) | A kind of detection device for accidental movement of elevator cage and hypervelocity | |
| CN210164312U (en) | Stereo garage wire rope locking mechanism that breaks | |
| CN205578567U (en) | Beam -pumping unit safety brake arresting gear | |
| JPH0717340B2 (en) | Brake device for passenger conveyor | |
| CN116374818A (en) | Speed measurement trolley for monorail crane and reliability detection method thereof | |
| CN215048254U (en) | Wind vane brake mounted on tower crane rotary motor | |
| CN210558728U (en) | Speed limiter | |
| CN212796904U (en) | Linkage detection rod for tail adjusting stroke of conversion equipment | |
| CN212154730U (en) | Electric control braking double-horsehead oil pumping unit | |
| CN208327022U (en) | A kind of additional brake of the home lift for lead screw driving | |
| CN212921522U (en) | Switch machine supporting communication with train and realizing autonomous control of train | |
| CN204610639U (en) | Drum brake list group manually declutches spanner | |
| CN216959551U (en) | Adjustable motor base and electric quick-change transmission belt oil pumping unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |