CN203702944U - Bidirectional double-piston hydraulic automatic clearance compensation cylinder - Google Patents
Bidirectional double-piston hydraulic automatic clearance compensation cylinder Download PDFInfo
- Publication number
- CN203702944U CN203702944U CN201320891151.1U CN201320891151U CN203702944U CN 203702944 U CN203702944 U CN 203702944U CN 201320891151 U CN201320891151 U CN 201320891151U CN 203702944 U CN203702944 U CN 203702944U
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- cylinder
- oil pocket
- cylinder cap
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- 230000002457 bidirectional effect Effects 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 4
- 238000013022 venting Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 85
- 239000010720 hydraulic oil Substances 0.000 description 13
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Abstract
The utility model provides a bidirectional double-piston hydraulic automatic clearance compensation cylinder which solves the problems of poor brake capacity of an automatic clearance compensation method, resource waste caused by oil pressure increase, unstable clearance adjustment and complex structure in the prior art. The cylinder comprises a cylinder body, a one-way valve, oil ports, a venting and pressure measuring connector, pistons, cylinder covers and breathing holes, the cylinder body comprises a first oil cavity and a second oil cavity which are formed in the cylinder body, the one-way valve is used for communicating the first oil cavity with the second oil cavity, the oil ports include a first oil port and a second oil port which are communicated with the first oil cavity and the second oil cavity respectively, the venting and pressure measuring connector is connected with the second oil port, the pistons include a first piston and a second piston which are arranged in the first oil cavity and the second oil cavity respectively, the cylinder covers include a first cylinder cover and a second cylinder cover which are connected with the cylinder body, and the breathing holes include a first breathing hole and a second breathing hole which are formed in the first cylinder cover and the second cylinder cover respectively. The bidirectional double-piston hydraulic automatic clearance compensation cylinder has the advantages that the cylinder has the largest piston area, sealing performances of the two oil cavities are not mutually interfered, and clearances are more stably and reliably compensated.
Description
Technical field
The utility model relates to oil-well rig and well repairing machine hydraulic disc brake field, refers to especially a kind of oil cylinder of two-way double-piston hydraulic automatic compensation gap.
Background technique
At present, hydraulic disc brake has generally been used as the winch brake system of oil-well rig, well repairing machine.Braking gap is an important usability parameter of hydraulic disk brake, directly affect the usability of hydraulic disc brake, but in use, along with the wearing and tearing of brake block and brake disc, it is large that braking gap can become gradually.Therefore, how hydraulic disc brake in use keeps a desirable braking gap just particularly important.
At present, hydraulic disc brake regulates the method for braking gap can be divided into manually and automatic two kinds.The method of manual tune braking gap mainly contain by hand screw regulate, hand thread plunger regulate and manually oiling regulate, but it is manually-operable that the method for these manual tune braking gaps all needs people, exist large, the artificial defect such as uncertain of labor intensity, and step-less adjustment immediately.And the composite oil cylinder that the method that automatically regulates at present braking gap mainly contains by installing secondary plunger additional regulates and regulates by install sub-piston mode additional in cylinder block, although the method for these two kinds of automatic regulating gaps has avoided people for manually-operable, but exist and reduced brake ability and need to improve oil pressure pressure and waste the deficiencies such as the unstable or complex structure of resource gap adjustment, therefore exist significant limitation, use popularization not high.
Model utility content
The utility model proposes a kind of oil cylinder of two-way double-piston hydraulic automatic compensation gap, solved automatic regulating gap in prior art method brake ability, improve oil pressure pressure and waste resource, the unstable and baroque problem of gap adjustment.
The technical solution of the utility model is achieved in that
An oil cylinder for two-way double-piston hydraulic automatic compensation gap, comprising:
Cylinder body, comprises the first oil pocket and the second oil pocket that are arranged in described cylinder body;
For being communicated with the one-way valve of described the first oil pocket and described the second oil pocket, the communication direction of described one-way valve is that described the first oil pocket is to described the second oil pocket;
Hydraulic fluid port, comprises the first hydraulic fluid port being communicated with described the first oil pocket and the second hydraulic fluid port being communicated with described the second oil pocket;
Exhaust pressure measuring tie-in, is connected with described the second hydraulic fluid port;
Piston, comprises the first piston being arranged in described the first oil pocket and is arranged at the second piston in described the second oil pocket;
Cylinder cap, comprises the first cylinder cap and the second cylinder cap that are connected with described cylinder body, and the piston rod of described first piston is through described the first cylinder cap, and the piston rod of described the second piston is through described the second cylinder cap;
Spiracle, comprises the first spiracle being arranged on described the first cylinder cap and is arranged at the second spiracle on described the second cylinder cap.
Preferably, described first piston and described the second piston are T-shaped piston.
Further, oil cylinder described in the utility model, also comprises:
Seal ring, comprises the first seal ring being arranged on described first piston and is arranged at the second seal ring on described the second piston.
Further, oil cylinder described in the utility model, also comprises:
Guide ring, comprises the first guide ring being arranged on described first piston and is arranged at the second guide ring on described the second piston.
Preferably, described the first cylinder cap is all connected with described cylinder body by bolt with described the second cylinder cap.
Further, oil cylinder described in the utility model, also comprises:
Guide sleeve, comprise be arranged at the first guide sleeve between described the first cylinder cap and the piston rod of described first piston and be arranged at described the second cylinder cap and the piston rod of described the second piston between the second guide sleeve.
Further, oil cylinder described in the utility model, also comprises:
Dustproof noise reduction resuscitation apparatus, comprises and is arranged at the dustproof noise reduction resuscitation apparatus of first in described the first spiracle and is arranged at the dustproof noise reduction resuscitation apparatus of second in described the second spiracle.
The beneficial effects of the utility model are:
The oil cylinder of two-way double-piston hydraulic automatic compensation gap of the present utility model, can stablize, the stroke of auto-compensation cylinder variation reliably, allow hydraulic disc brake automatically keep all the time one rationally, constant braking gap, greatly improve the reliability of hydraulic disc brake, reduce labor intensity, and two oil pockets of this oil cylinder side by side and independently, thereby can guarantee that first piston and the second piston can have maximum piston area, thereby allow hydraulic disc brake there is the brake ability of its maximum, also can guarantee sealing and the mutual noninterference of two oil pockets, thereby make backlash compensation more stable and reliable.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the oil cylinder of a kind of two-way double-piston hydraulic automatic compensation gap of the utility model;
Fig. 2 is the structural representation of the oil cylinder of a kind of two-way double-piston hydraulic automatic compensation gap of the utility model while being applied to hydraulic disc type brake device.
In figure:
1, cylinder body; 2, the first oil pocket; 3, the second oil pocket; 4, one-way valve; 5, the first hydraulic fluid port; 6, the second hydraulic fluid port; 7, exhaust pressure measuring tie-in; 8, first piston; 9, the second piston; 10, the first cylinder cap; 11, the second cylinder cap; 12, the first spiracle; 13, the second spiracle; 14, the first seal ring; 15, the second seal ring; 16, the first guide ring; 17, the second guide ring; 18, the first guide sleeve; 19, the second guide sleeve; 20, the first dustproof noise reduction resuscitation apparatus; 21, the second dustproof noise reduction resuscitation apparatus; 22, the first bearing pin; 23, tong arm; 24, reset tension spring; 25, the second bearing pin; 26, back shaft; 27, tong holder; 28, the 3rd bearing pin; 29, backboard; 30, brake block; 31, brake disc.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the oil cylinder of a kind of two-way double-piston hydraulic automatic compensation gap described in the utility model, comprising:
Cylinder body 1, comprises that the first oil pocket 2 of being arranged in cylinder body 1 and the second oil pocket 3, the first oil pockets 2 and the second oil pocket 3 are arranged at respectively two of cylinder body 1;
For being communicated with the one-way valve 4 of the first oil pocket 2 and the second oil pocket 3, the communication direction of one-way valve 4 is the first oil pocket 2 to second oil pockets 3;
Hydraulic fluid port, comprises the first hydraulic fluid port 5 being communicated with the first oil pocket 2 and the second hydraulic fluid port 6 being communicated with the second oil pocket 3, and wherein, the first hydraulic fluid port 5 is arranged at the bottom of the first oil pocket 2, and the first hydraulic fluid port 5 is for oil cylinder turnover oil, and the second hydraulic fluid port 6 is arranged at the bottom of the second oil pocket 3;
Exhaust pressure measuring tie-in 7, is connected with the second hydraulic fluid port 6;
Piston, comprises the first piston 8 being arranged in the first oil pocket 2 and is arranged at the second piston 9 in the second oil pocket 3;
Cylinder cap, comprises the first cylinder cap 10 and the second cylinder cap 11 that are connected with cylinder body 1, and the piston rod of first piston 8 passes the second cylinder cap 11 through the piston rod of the first cylinder cap 10, the second pistons 9;
Spiracle, comprises that the first spiracle 12 being arranged on the first cylinder cap 10 and the second spiracle 13, the first spiracles 12 that are arranged on the second cylinder cap 11 are communicated with the first oil pocket 2, and the second spiracle 13 is communicated with the second oil pocket 3.
Wherein, first piston 8 is arranged in the first oil pocket 2 and forms enclosed oil pocket with cylinder body 1, and in the first oil pocket 2, has certain straight line motion stroke space; The second piston 9 is arranged in the second oil pocket 3 and forms enclosed oil pocket with cylinder body 1, and in the second oil pocket 3, has certain straight line motion stroke space.
Wherein, preferably, first piston 8 and the second piston 9 are T-shaped piston.
Oil cylinder described in the utility model, can also comprise:
Seal ring, comprises and is arranged at the first seal ring 14 on first piston 8 and is arranged at the second seal ring 15 on the second piston 9.
Oil cylinder described in the utility model, can also comprise:
Guide ring, comprises and is arranged at the first guide ring 16 on first piston 8 and is arranged at the second guide ring 17 on the second piston 9.
Wherein, preferably, the first cylinder cap 10 is all connected with cylinder body 1 by bolt with the second cylinder cap 11.
Oil cylinder described in the utility model, can also comprise:
Guide sleeve, comprise be arranged at the first guide sleeve 18 between the first cylinder cap 10 and the piston rod of first piston 8 and be arranged at the second cylinder cap 11 and the piston rod of the second piston 9 between the second guide sleeve 19.
Oil cylinder described in the utility model, can also comprise:
Dustproof noise reduction resuscitation apparatus, comprises and is arranged at the dustproof noise reduction resuscitation apparatus 20 of first in the first spiracle 12 and is arranged at the dustproof noise reduction resuscitation apparatus 21 of second in the second spiracle 13.
The working principle of the oil cylinder of two-way double-piston hydraulic automatic compensation gap described in the utility model:
Working solution force feed enters the first oil pocket 2 by the first hydraulic fluid port 5 of the first oil pocket 2, because one-way valve 4 has certain breakout pressure, hydraulic oil first promotes the protruding motion of first piston 8, arrive range to withstanding after the first cylinder cap 10, oil pressure rises, one-way valve 4 is opened, and hydraulic oil enters the second oil pocket 3 by one-way valve 4, promotes the second piston 9 and outwards moves to working stroke requirement.When oil cylinder resets under external force, hydraulic oil pressure release, one-way valve 4 is closed, and the hydraulic oil in the second oil pocket 3 remains in the second oil pocket 3, and the second piston 9 keeps stroke, and the hydraulic oil in the first oil pocket 2 is by the first hydraulic fluid port 5 drainings, first piston 8 returns.While reset after work at every turn, can only first piston 8 returns, and hydraulic oil in the second oil pocket 3 is because one-way valve 4 cannot flow out, therefore oil cylinder has realized the gap stroke that compensation changes at any time, remain a fixing gap stroke, the range of first piston 8 is fixed interval (FI)s for the constant maintenance of the utility model oil cylinder.
Further elaborate working principle of the present utility model by example as shown in Figure 2:
In example, the piston rod of the first piston 8 of the utility model oil cylinder and the piston rod end of the second piston 9 are all provided with cylinder ear, cylinder ear is connected with articulated form with tong arm 23 upper ends by the first bearing pin 22 respectively, reset tension spring 24 is installed between first bearing pin 22 on both sides is used for making oil cylinder to reset, the middle part of two tong arms 23 is connected with articulated form with back shaft 26 two ends by the second bearing pin 25 respectively, thereby two tong arms 23 form lever construction take back shaft 26 two ends as fulcrum, back shaft 26 is fixedly mounted on the tong holder 27 of hydraulic disc type brake device, tong arm 23 bottoms are connected with articulated form with backboard 29 by the 3rd bearing pin 28, two backboard 29 inner sides are all provided with brake block 30, and brake block 30 forms brake pair with brake disc 31.Brake disc 31 is fixedly mounted on the winch drum shaft that needs braking, and rotates with winch drum, and tong holder 27 is fixing.
When the braking clamp of hydraulic disc brake need to be implemented brake, hydraulic oil enters the first oil pocket 2 by the first hydraulic fluid port 5 on the first oil pocket 2 of the cylinder body 1 of the utility model oil cylinder, because one-way valve 4 has certain breakout pressure, hydraulic oil first promotes the protruding motion of first piston 8, arrive range to withstanding after the first cylinder cap 10, oil pressure rises, one-way valve 4 is opened, hydraulic oil enters the second oil pocket 3 by one-way valve 4, promoting the second piston 9 outwards moves, along with the outside motion of first piston 8 and the second piston 9, outwards move in the upper end that promotes tong arm 23 by the first bearing pin 22 respectively, and allow reset tension spring 24 open the certain pulling force of formation, according to lever principle, tong arm 23 lower ends just promote backboard 29 by the 3rd bearing pin 28 and brake block 30 inwardly moves, until compressing brake disc 31, brake block 30 forms brake.Braking clamp pine in a flash, hydraulic oil pressure release, the reply pulling force of reset tension spring 24 acts on respectively on first piston 8 and the second piston 9 by the first bearing pin 22, make first piston 8 and the second piston 9 start return under the effect of reset tension spring 24, hydraulic oil in the first oil pocket 2 of cylinder body 1 is by the first hydraulic fluid port 5 drainings, first piston 8 returns, but the hydraulic oil in the second oil pocket 3 is due to the prevention of one-way valve 4, remain in the second oil pocket 3, the second piston 9 keeps the stroke cannot return, therefore pine in a flash, the fixed journey system of overall return first piston 8 of the utility model oil cylinder, and open a fixing value with the brake block 30 of movable pliers 23 bottoms, form a fixing braking gap.Along with the use of hydraulic disc brake, each brake all can cause the wearing and tearing of brake disc 31 and brake block 30, increase original braking gap, the braking gap increasing will outwards be moved and compensate by oil cylinder piston in the time of brake, and having arrived range, the first piston 8 of the utility model oil cylinder cannot continue outside motion, hydraulic oil can only enter by one-way valve 4 the second oil pocket 3 of cylinder body 1, promote the outside motion of the second piston 9 and carry out the braking gap that compensate for wear increases, but pine in a flash, the second piston 9 again cannot return, the utility model oil cylinder can only return first piston 8 fixed journey system, thereby make braking clamp keep at any time in use a fixing braking gap, realize the function of hydraulic pressure compensating braking gap.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. an oil cylinder for two-way double-piston hydraulic automatic compensation gap, is characterized in that, comprising:
Cylinder body (1), comprises the first oil pocket (2) and the second oil pocket (3) that are arranged in described cylinder body (1);
Be used for being communicated with the one-way valve (4) of described the first oil pocket (2) and described the second oil pocket (3), the communication direction of described one-way valve (4) is that described the first oil pocket (2) is to described the second oil pocket (3);
Hydraulic fluid port, comprises the first hydraulic fluid port (5) being communicated with described the first oil pocket (2) and the second hydraulic fluid port (6) being communicated with described the second oil pocket (3);
Exhaust pressure measuring tie-in (7), is connected with described the second hydraulic fluid port (6);
Piston, comprises and is arranged at the first piston (8) in described the first oil pocket (2) and is arranged at the second piston (9) in described the second oil pocket (3);
Cylinder cap, comprises the first cylinder cap (10) and the second cylinder cap (11) that are connected with described cylinder body (1), and the piston rod of described first piston (8) is through described the first cylinder cap (10), and the piston rod of described the second piston (9) is through described the second cylinder cap (11);
Spiracle, comprises the first spiracle (12) being arranged on described the first cylinder cap (10) and is arranged at the second spiracle (13) on described the second cylinder cap (11).
2. oil cylinder according to claim 1, is characterized in that, described first piston (8) and described the second piston (9) are T-shaped piston.
3. oil cylinder according to claim 1, is characterized in that, also comprises:
Seal ring, comprises the first seal ring (14) being arranged on described first piston (8) and is arranged at the second seal ring (15) on described the second piston (9).
4. oil cylinder according to claim 1, is characterized in that, also comprises:
Guide ring, comprises the first guide ring (16) being arranged on described first piston (8) and is arranged at the second guide ring (17) on described the second piston (9).
5. oil cylinder according to claim 1, is characterized in that, described the first cylinder cap (10) is all connected with described cylinder body (1) by bolt with described the second cylinder cap (11).
6. oil cylinder according to claim 1, is characterized in that, also comprises:
Guide sleeve, comprise be arranged at the first guide sleeve (18) between described the first cylinder cap (10) and the piston rod of described first piston (8) and be arranged at described the second cylinder cap (11) and the piston rod of described the second piston (9) between the second guide sleeve (19).
7. according to the oil cylinder described in claim 1-6 any one, it is characterized in that, also comprise:
Dustproof noise reduction resuscitation apparatus, comprises and is arranged at the dustproof noise reduction resuscitation apparatus (20) of first in described the first spiracle (12) and is arranged at the dustproof noise reduction resuscitation apparatus (21) of second in described the second spiracle (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320891151.1U CN203702944U (en) | 2013-12-31 | 2013-12-31 | Bidirectional double-piston hydraulic automatic clearance compensation cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320891151.1U CN203702944U (en) | 2013-12-31 | 2013-12-31 | Bidirectional double-piston hydraulic automatic clearance compensation cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702944U true CN203702944U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320891151.1U Expired - Lifetime CN203702944U (en) | 2013-12-31 | 2013-12-31 | Bidirectional double-piston hydraulic automatic clearance compensation cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702944U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584949A (en) * | 2016-03-16 | 2016-05-18 | 北京普世科石油机械新技术有限公司 | Integrated brake system |
| CN105584950A (en) * | 2016-03-16 | 2016-05-18 | 北京普世科石油机械新技术有限公司 | Work-and-safety integrated brake cylinder capable of automatically keeping constant clearance |
| CN106641026A (en) * | 2016-12-02 | 2017-05-10 | 山东交通学院 | Drum type brake with automatic and continuous adjustable gap |
| CN114076157A (en) * | 2021-08-27 | 2022-02-22 | 中国石油天然气集团有限公司 | Automatic clearance adjustment oil cylinder and hydraulic disc brake |
-
2013
- 2013-12-31 CN CN201320891151.1U patent/CN203702944U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584949A (en) * | 2016-03-16 | 2016-05-18 | 北京普世科石油机械新技术有限公司 | Integrated brake system |
| CN105584950A (en) * | 2016-03-16 | 2016-05-18 | 北京普世科石油机械新技术有限公司 | Work-and-safety integrated brake cylinder capable of automatically keeping constant clearance |
| CN105584950B (en) * | 2016-03-16 | 2018-02-02 | 北京普世科石油机械新技术有限公司 | One kind keeps permanent interval work secure, integral brake cylinder automatically |
| CN105584949B (en) * | 2016-03-16 | 2018-02-02 | 北京普世科石油机械新技术有限公司 | A kind of Integral braking system |
| CN106641026A (en) * | 2016-12-02 | 2017-05-10 | 山东交通学院 | Drum type brake with automatic and continuous adjustable gap |
| CN106641026B (en) * | 2016-12-02 | 2018-11-06 | 山东交通学院 | A kind of automatic continuous adjustable drum brake in gap |
| CN114076157A (en) * | 2021-08-27 | 2022-02-22 | 中国石油天然气集团有限公司 | Automatic clearance adjustment oil cylinder and hydraulic disc brake |
| CN114076157B (en) * | 2021-08-27 | 2024-02-23 | 中国石油天然气集团有限公司 | Automatic clearance adjustment oil cylinder and hydraulic disc brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |