CN203747562U - Screw pump direct drive motor with mechanical brake - Google Patents
Screw pump direct drive motor with mechanical brake Download PDFInfo
- Publication number
- CN203747562U CN203747562U CN201420095741.8U CN201420095741U CN203747562U CN 203747562 U CN203747562 U CN 203747562U CN 201420095741 U CN201420095741 U CN 201420095741U CN 203747562 U CN203747562 U CN 203747562U
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- CN
- China
- Prior art keywords
- support
- screw pump
- moving plate
- plate
- motor
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- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a screw pump direct drive device in the field of oilfield mechanical oil extraction and particularly relates to a screw pump direct drive motor with mechanical brake. The screw pump direct drive motor with mechanical brake comprises a base, a body, a motor shaft, a support, a brake wheel, a brake pad, a moving plate and static plates, wherein the support is fixed at the upper end of the base; two static plates are respectively fixed at the left end and the right end of the support via bolts; the static plate is also internally provided with a coil and a spring, and one end, close to the support, of the spring, penetrates through the static plate; the brake wheel and the motor shaft are in interference connection via a flat key; one end of the moving plate is bonded with the brake pad and the brake pad and the moving plate are arranged in a sliding mode between the braking wheel and the static plates; and the other end of the moving plate abuts against the spring. According to the screw pump direct drive motor with mechanical brake, the reverse rotation speed of the motor can be effectively restrained till safe shut-down in the conditions when the controller fails or the power line is cut off, happening of safety accidents can be prevented, the structure is simple, safety and reliability are facilitated, and large batch production and application are facilitated.
Description
Technical field
The utility model relates to the direct drive unit of screw pump motor in oil field machinery oil field, relates in particular to a kind of screw pump direct-drive motor with mechanical braking.
Background technology
At present, in oil field machinery oil field, the direct drive unit of screw pump motor is a kind of oil rig being widely adopted.Owing to there being the risk of reversion, technology anti-reverse in the direct drive unit of screw pump motor is particularly crucial.The anti-reverse technology generally adopting has electromagnetic braking and dynamic braking.So-called electromagnetic braking is exactly the electric current that to the magnetic direction of a generation of motor winding output, motor reversal speed is weakened by controller, reaches the effect of restriction reversion; And brake technique of energy is to adopt an electric energy producing when regenerative power generation state to several high-power resistances consumption motor to make motor in on-position.The common shortcoming of this class technology is exactly to break down or when the power line that connects controller is cut off, reversion effect sharply declines and even lost efficacy, and causes motor to produce high speed reverse rotation and causes disconnected bar or de-bar that the serious consequence of security incident even occurs when controller.
Summary of the invention
In order to solve above-mentioned technical problem; the purpose of this utility model is to provide a kind of screw pump direct-drive motor with mechanical braking; even if this direct driving motor breaks down or when the power line that connects controller is cut off at controller; the speed reversal that can suppress reliably motor; motor speed is reduced gradually, until safe shutdown.
In order to realize above-mentioned object, the utility model has adopted following technical scheme:
With a screw pump direct-drive motor for mechanical braking, comprise support, body, motor shaft, support, braked wheel, brake block, moving plate and quiet plate; Described support is fixed on the upper end of support, and two quiet plates are separately fixed at the two ends, left and right of support by bolt, in described quiet plate, be also provided with coil and spring, and spring penetrates quiet plate near one end of support; Described braked wheel is connected by flat key interference with motor shaft, one end of described moving plate and brake block bonding, and described brake block and moving plate be slidably mounted between braked wheel and quiet plate, and the other end and the spring of described moving plate offset.
As preferred version: the outside of described quiet plate and moving plate is provided with protective cover, and making also can reliably working under multiple adverse circumstances with the screw pump direct-drive motor of mechanical braking.
The utility model increases the electro-magnetic braking device of a dead electricity braking by the top at existing screw pump direct-drive motor, this brake apparatus is fixed on the support on motor top by support, brake apparatus comprises braked wheel, quiet plate and mutual bonding brake block and moving plate, and braked wheel is connected by flat key with motor shaft.When motor is normally worked; the moving plate of quiet plate energising adhesive; make brake block separated with braked wheel; when controller breaks down or when power line cuts off; under the spring action of moving plate in quiet plate, move and make brake block embrace braked wheel; namely embraced the axle of motor, motor slows down gradually under brake block frictional force, until safe shutdown.
The beneficial effects of the utility model are in controller inefficacy or the cut situation of power line, effectively to suppress the speed reversal of motor, until safe shutdown prevents the generation of security incident.Simple in structure, safe and reliable, can produce application in enormous quantities.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is made a detailed explanation.
A kind of screw pump direct-drive motor with mechanical braking as shown in Figure 1, comprises support 1, body 2, motor shaft 6, support 5, braked wheel 7, brake block 8, moving plate 9 and quiet plate 11; Motor shaft 6 is positioned at the inside of body 2, and drive rotation by body 2, body 2 is positioned at the inside of support 1, described support 5 is fixed on the upper end of support 1, two quiet plates 11 are separately fixed at the two ends, left and right of support 5 by bolt, in described quiet plate 11, be also provided with coil 3 and spring 4, and spring 4 penetrates quiet plate 11 near one end of support 5; Described braked wheel 7 is connected by flat key interference with motor shaft 6, one end of described moving plate 9 and brake block 8 bondings, and described brake block 8 and moving plate 9 be slidably mounted between braked wheel 7 and quiet plate 11, and the other end of described moving plate 9 and spring 4 offset.The outside of described quiet plate 11 and moving plate 9 is provided with protective cover 10.
When motor is normally worked, quiet plate 11 energisings, alive in coil 3 and produce the spring force that electromagnetic force overcomes spring 4 generations, make plate 9 and brake block 8 depart from braked wheels 7, and motor shaft 6 rotates freely, by the speed operation of controller appointment.When controller breaks down or when power line is cut off; motor shaft 6 meeting high speed reverse rotation; at this moment in coil 3, be also cut off electric current; lose electromagnetic force; the spring force that spring 4 produces makes plate 9 and brake block 8 and braked wheel 7 close contacts, produces frictional force, causes motor shaft to slow down gradually under the active force of frictional force; until safe shutdown effectively prevents the generation of security incident.
Claims (2)
1. with a screw pump direct-drive motor for mechanical braking, it is characterized in that: comprise support (1), body (2), motor shaft (6), support (5), braked wheel (7), brake block (8), moving plate (9) and quiet plate (11); Described support (5) is fixed on the upper end of support (1), two quiet plates (11) are separately fixed at the two ends, left and right of support (5) by bolt, in described quiet plate (11), be also provided with coil (3) and spring (4), and one end of the close support (5) of spring (4) penetrates quiet plate (11); Described braked wheel (7) is connected by flat key interference with motor shaft (6), one end of described moving plate (9) and brake block (8) bonding, and described brake block (8) and moving plate (9) are slidably mounted between braked wheel (7) and quiet plate (11), and the other end of described moving plate (9) and spring (4) offset.
2. a kind of screw pump direct-drive motor with mechanical braking according to claim 1, is characterized in that: the outside of described quiet plate (11) and moving plate (9) is provided with protective cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095741.8U CN203747562U (en) | 2014-03-04 | 2014-03-04 | Screw pump direct drive motor with mechanical brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095741.8U CN203747562U (en) | 2014-03-04 | 2014-03-04 | Screw pump direct drive motor with mechanical brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747562U true CN203747562U (en) | 2014-07-30 |
Family
ID=51347318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420095741.8U Expired - Fee Related CN203747562U (en) | 2014-03-04 | 2014-03-04 | Screw pump direct drive motor with mechanical brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855859A (en) * | 2014-03-04 | 2014-06-11 | 浙江德清西传电气科技有限公司 | Screw pump direct drive motor with mechanical brake |
| CN110098700A (en) * | 2019-05-08 | 2019-08-06 | 淮阴师范学院 | A kind of AC permanent magnet synchronous motor structure convenient for accurate control driving |
-
2014
- 2014-03-04 CN CN201420095741.8U patent/CN203747562U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855859A (en) * | 2014-03-04 | 2014-06-11 | 浙江德清西传电气科技有限公司 | Screw pump direct drive motor with mechanical brake |
| CN110098700A (en) * | 2019-05-08 | 2019-08-06 | 淮阴师范学院 | A kind of AC permanent magnet synchronous motor structure convenient for accurate control driving |
| CN110098700B (en) * | 2019-05-08 | 2020-09-01 | 淮阴师范学院 | Alternating current permanent magnet synchronous motor structure convenient for precise control driving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20170304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |