CN202834320U - Counterweight automatic pressure-maintaining pilot executive device - Google Patents
Counterweight automatic pressure-maintaining pilot executive device Download PDFInfo
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- CN202834320U CN202834320U CN 201220540697 CN201220540697U CN202834320U CN 202834320 U CN202834320 U CN 202834320U CN 201220540697 CN201220540697 CN 201220540697 CN 201220540697 U CN201220540697 U CN 201220540697U CN 202834320 U CN202834320 U CN 202834320U
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- arm
- automatic pressure
- hydraulic control
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Abstract
Provided is a counterweight automatic pressure-maintaining pilot executive device. The counterweight automatic pressure-maintaining pilot executive device solves the problem that when a rocker arm of an existing counterweight-type pilot system rotates, an arm of force changes as a rotation angle differs, and a preinstalled speed of a hydraulic portion changes so that a valve can not be opened and closed in a constant speed. The counterweight automatic pressure-maintaining pilot executive device comprises a support frame, one end of the support frame is connected with an oil cylinder, the other end of the support frame is connected with a transmission box, a rack and a gear portion of a gear convex force arm are arranged in the transmission box, the gear convex force arm is provided with a counterweight, the gear portion of the gear convex force arm is meshed with the rack, a piston rod is arranged in the oil cylinder, and the piston rod is connected with the top of the rack. Transmission of the rack and a gear is adopted, the arm of the force is constant in the process of rotation of the gear, opening and closing torque of the executive device is also constant, the opening and closing torque is not affected because pressure and flow of pipeline medium change and an opening and closing angle of the executive device changes, so that water hammer or medium impact force of on-site pipelines is restricted and removed.
Description
Technical field
The utility model relates to a kind of weight automatic pressure-maintaining hydraulic control actuating device.
Background technique
Heavy hammer type automatic pressure-maintaining hydraulic control executive system is based on the industry valves such as electric power, the energy and controls and the hydraulic control system of new generation of exploitation.The conventional valves control system is multiplex electronic, existing valve is all used rocking-arm driving with the heavy hammer type hydraulic control system, because adopting rocking-arm driving, the arm of force changes along with the angle of swing difference, cause arm of force moment to change, and then cause the pre-set velocity of hydraulic part to change, can not satisfy the valve constant moment of force of on-the-spot water turbine and water pump or the industries such as electric power, the energy and the requirement that default constant speedpump opens and closes.
Summary of the invention
When rotating for solving the rocking arm that has now in the background technique in the heavy hammer type hydraulic control system, the arm of force changes along with the angle of swing difference, so that the pre-set velocity of hydraulic part changes, the problem that causes valve not open and close by default constant speed, the utility model provides a kind of weight automatic pressure-maintaining hydraulic control actuating device.
The technical solution of the utility model is: a kind of weight automatic pressure-maintaining hydraulic control actuating device, comprise support, one end of described support is connected with the oil cylinder that is connected with hydraulic control system, the other end links to each other with transmission case, be provided with the gear part of the protruding arm of force of rack and pinion in the described transmission case, the protruding arm of force of described gear is provided with weight, and the gear part on the protruding arm of force of gear is meshed with tooth bar, be provided with piston rod in the described oil cylinder, described piston rod is connected with the top of tooth bar.
As a kind of improvement of the present utility model, described transmission case is provided with guide holder, and described guide holder and tooth bar fit.
As another kind of improvement the of the present utility model, described transmission case is provided with standard-sized sheet caging bolt and complete shut-down caging bolt, and described standard-sized sheet caging bolt is corresponding with the bottom of tooth bar, and described complete shut-down caging bolt is corresponding with the protruding arm of force of gear.
As another kind of improvement the of the present utility model, be fixed with angle on the described transmission case and detect protective housing, described angle detects in the protective housing and is provided with angle detection mechanism, described angle detects protective housing and is provided with aperture signboard and aperture pointer, the gear part of the protruding arm of force of described gear is sheathed on the rotatingshaft, and described rotatingshaft links to each other with the aperture pointer by coupling.
The beneficial effects of the utility model are, adopt the gear rack transmission, driven by the piston rod in the oil cylinder with hour rack, gear is in turning course, and the arm of force is constant, is stably so that oil cylinder is in operation, thereby make weight in running, can not affect the pre-set velocity of hydraulic part, thus the problem of having avoided valve not open and close by default constant speedpump and Preset Time, namely to hydraulic control system and join the effect that valve plays pressurize.Owing to adopted the gear rack transmission, gear is in turning course, the arm of force is constant, it also is constant that actuating device opens and closes moment, can not change because of the pressure versus flow of pipeline medium, and the variation of the keying angle of actuating device and impact keying moment, so on-the-spot pipeline water hammer or medium impact force are played inhibition and elimination effect.
Description of drawings
Accompanying drawing 1 is plan view of the present utility model.
Accompanying drawing 2 is structural representation of the present utility model.
Accompanying drawing 3 detects the structural representation at protective housing 10 places for angle.
Among the figure, 1, support; 2, oil cylinder; 21, piston rod; 3, transmission case; 4, tooth bar; 5, the protruding arm of force of gear; 51, gear part; 52, weight; 6, guide holder; 7, standard-sized sheet caging bolt; 8, complete shut-down caging bolt; 9, rotatingshaft; 10, angle detects protective housing; 11, angle detection mechanism; 12, aperture signboard; 13, aperture pointer; 14; Coupling.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
Shown in figure, a kind of weight automatic pressure-maintaining hydraulic control actuating device, comprise support 1, one end of described support 1 is connected with that (oil circuit of hydraulic control system is prior art with hydraulic control system, do not do at this and to give unnecessary details) oil cylinder 2 that is connected, the other end links to each other with transmission case 3, be provided with the gear part 51 of tooth bar 4 and the protruding arm of force 5 of gear in the described transmission case 3, the protruding arm of force 5 of described gear is provided with weight 52, gear part 51 on the protruding arm of force 5 of gear is meshed with tooth bar 4, be provided with piston rod 21 in the described oil cylinder 2, described piston rod 21 is connected with the top (being as the criterion with accompanying drawing 2) of tooth bar 4.The beneficial effects of the utility model are, adopt the gear rack transmission, driven by the piston rod in the oil cylinder with hour rack, gear is in turning course, and the arm of force is constant, is stably so that oil cylinder is in operation, thereby make weight in running, can not affect the pre-set velocity of hydraulic part, thus the problem of having avoided valve not open and close by default constant speedpump and Preset Time, namely to hydraulic control system and join the effect that valve plays pressurize.Owing to adopted the gear rack transmission, gear is in turning course, the arm of force is constant, it also is constant that actuating device opens and closes moment, can not change because of the pressure versus flow of pipeline medium, and the variation of the keying angle of actuating device and impact keying moment, so on-the-spot pipeline water hammer or medium impact force are played inhibition and elimination effect.
Described transmission case 3 is provided with guide holder 6, and described guide holder 6 fits with tooth bar 4.Such structure is so that the tooth bar motion is more steady.
Described transmission case 3 is provided with standard-sized sheet caging bolt 7 and complete shut-down caging bolt 8, and described standard-sized sheet caging bolt 7 is corresponding with the bottom (being as the criterion with accompanying drawing 2) of tooth bar 4, and the protruding arm of force of described complete shut-down caging bolt 8 and gear 5 is corresponding.Such structural limitations the operation of the protruding arm of force of gear and tooth bar so that the protruding arm of force of gear can only 90-degree rotation, be convenient to control the pressure size of hydraulic part.
Be fixed with angle on the described transmission case 3 and detect protective housing 10, described angle detects in the protective housing 10 and is provided with angle detection mechanism 11, described angle detects protective housing 10 and is provided with aperture signboard 12 and aperture pointer 13, the gear part 51 of the protruding arm of force 5 of described gear is sheathed on the rotatingshaft 9, and described rotatingshaft 9 links to each other with aperture pointer 13 by coupling 14.Such structure can simple and fast the angle that turns over of finding out the protruding arm of force of gear, be convenient to the control of hydraulic control system part.
When " unlatching " order is sent, the dynamo oil pump package operation of hydraulic control system, electromagnetic valve work, oil pressure enters in the oil cylinder 2 of actuating device, piston rod 21 band carry-over bars 4 motions in the oil cylinder 2, thus the protruding arm of force 5 of actuation gear is done 90 degree revolutions, and weight 52 rises under the drive of the arm of force.At this moment, valve opening, in the process of opening, angle detection mechanism 11 work, this signal whole process can be regulated.When being opened into 90 when spending, oil pump stops when continuing to move to the high-voltage value of setting, and automatically enters the automatic pressure-maintaining state.After " closing " order is sent, the electromagnetic valve work of hydraulic part, under the effect of weight 52 potential energy, so that the fluid oil sump tank in the oil cylinder 2, weight 52 cuts out under default speed, and when closing default slowly pass angle, angle detection mechanism 11 sends signal, slowly close electromagnetic valve work, actuator's Slow Close and to complete shut-down.Valve is multiplex in butterfly valve and ball valve with weight automatic pressure-maintaining hydraulic control actuating device, do 90 degree revolutions, and valve is installed on the exit of pump of water power plant hydroturbine water intake mouth and thermal power station's circulating water pump outlet or pumping plant more, so this hydraulic control system is complementary with the field hydraulic characteristic, have constant moment of force, default permanent degree, the keying of speed double speed or many speed and open and close operation, speed opens and closes the omnidistance adjustable requirement that waits of angle, can satisfy the demand for control of Different field.
Every technician's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this model utility; the repacking of any utilization inventive concept all will be included in this patent scope of patent protection.
Claims (4)
1. weight automatic pressure-maintaining hydraulic control actuating device, comprise support (1), it is characterized in that: an end of described support (1) is connected with the oil cylinder (2) that is connected with hydraulic control system, the other end links to each other with transmission case (3), be provided with the gear part (51) of tooth bar (4) and the protruding arm of force of gear (5) in the described transmission case (3), the protruding arm of force of described gear (5) is provided with weight (52), gear part (51) on the protruding arm of force of gear (5) is meshed with tooth bar (4), be provided with piston rod (21) in the described oil cylinder (2), described piston rod (21) is connected with the top of tooth bar (4).
2. weight automatic pressure-maintaining hydraulic control actuating device according to claim 1 is characterized in that described transmission case (3) is provided with guide holder (6), and described guide holder (6) fits with tooth bar (4).
3. weight automatic pressure-maintaining hydraulic control actuating device according to claim 1, it is characterized in that described transmission case (3) is provided with standard-sized sheet caging bolt (7) and complete shut-down caging bolt (8), described standard-sized sheet caging bolt (7) is corresponding with the bottom of tooth bar (4), and described complete shut-down caging bolt (8) is corresponding with the protruding arm of force of gear (5).
4. weight automatic pressure-maintaining hydraulic control actuating device according to claim 1, it is characterized in that being fixed with on the described transmission case (3) angle and detect protective housing (10), described angle detects in the protective housing (10) and is provided with angle detection mechanism (11), described angle detects protective housing (10) and is provided with aperture signboard (12) and aperture pointer (13), the gear part (51) of the protruding arm of force of described gear (5) is sheathed on the rotatingshaft (9), and described rotatingshaft (9) links to each other with aperture pointer (13) by coupling (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540697 CN202834320U (en) | 2012-10-21 | 2012-10-21 | Counterweight automatic pressure-maintaining pilot executive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540697 CN202834320U (en) | 2012-10-21 | 2012-10-21 | Counterweight automatic pressure-maintaining pilot executive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834320U true CN202834320U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220540697 Expired - Fee Related CN202834320U (en) | 2012-10-21 | 2012-10-21 | Counterweight automatic pressure-maintaining pilot executive device |
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| Country | Link |
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| CN (1) | CN202834320U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611065A (en) * | 2019-02-25 | 2019-04-12 | 江炎芬 | The injected system and application method of the automatic adjustment of oil field injection well are realized using gravity |
| CN109882653A (en) * | 2019-04-23 | 2019-06-14 | 杭州国辰机器人科技有限公司 | A kind of cement plant lock wind flap valve rotational angle condition detecting system |
| CN110081234A (en) * | 2019-05-07 | 2019-08-02 | 杭州国辰机器人科技有限公司 | The system for detecting lock wind flap valve corner state using displacement sensor for pull rope |
-
2012
- 2012-10-21 CN CN 201220540697 patent/CN202834320U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611065A (en) * | 2019-02-25 | 2019-04-12 | 江炎芬 | The injected system and application method of the automatic adjustment of oil field injection well are realized using gravity |
| CN109611065B (en) * | 2019-02-25 | 2023-10-20 | 江炎芬 | Injection system for realizing automatic adjustment of oilfield injection well by utilizing gravity and application method |
| CN109882653A (en) * | 2019-04-23 | 2019-06-14 | 杭州国辰机器人科技有限公司 | A kind of cement plant lock wind flap valve rotational angle condition detecting system |
| CN110081234A (en) * | 2019-05-07 | 2019-08-02 | 杭州国辰机器人科技有限公司 | The system for detecting lock wind flap valve corner state using displacement sensor for pull rope |
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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: 20130327 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |