CN204493526U - A kind of oil cylinder and braking system - Google Patents
A kind of oil cylinder and braking system Download PDFInfo
- Publication number
- CN204493526U CN204493526U CN201420870095.8U CN201420870095U CN204493526U CN 204493526 U CN204493526 U CN 204493526U CN 201420870095 U CN201420870095 U CN 201420870095U CN 204493526 U CN204493526 U CN 204493526U
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- cylinder body
- seal space
- fluid port
- 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
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model proposes a kind of oil cylinder and braking system, solve braking gap in prior art to adjust not in time, easily there is the problem of the defect such as probabilistic hidden danger and working service complexity, comprise the first cylinder body and the second cylinder body, and the first cylinder body is connected and sealed after docking with the second cylinder body, form a seal space; First cylinder body and the second cylinder body are respectively arranged with the first hydraulic fluid port and the second hydraulic fluid port, and first piston, is arranged in seal space, and first piston one end and seal space form the first oil pocket; Second piston is arranged in seal space, and one end is through seal space, be placed in outside seal space, and the second piston and seal space forms the second oil pocket; The first piston the other end is located in the second piston; Elasticity group, is arranged between first piston and the second piston.The oil cylinder that the utility model proposes and braking system avoid the generation of uncertain hidden danger, can reduce maintenance difficulty by technique scheme simultaneously, improve dismounting efficiency.
Description
Technical field
The utility model relates to the winch brake system of oil-well rig, well repairing machine, refers to a kind of oil cylinder and braking system especially.
Background technique
In prior art, hydraulic disc brake has generally been used as the winch brake system of oil-well rig, well repairing machine.Safety brake pincers are one of main breaks of disk type brake, are the safety guarantee of whole brake system, and safety cylinder is one of major part of safety brake pincers, for brake calipers provides thrust.
Braking gap is an important usability parameter of hydraulic disk brake, directly affects the usability of hydraulic disc brake, and particularly to safety brake pincers, braking gap directly affects braking force size.But in use, along with the wearing and tearing of brake block and brake disc, braking gap can become large gradually.Therefore, how hydraulic disc brake in use keeps a desirable braking gap, and particularly the braking gap of safety brake pincers, just particularly important.
Existing way is, the safety brake pincers that hydraulic disc brake adopts are substantially all go manually to regulate braking gap, and such manual tune is not easy at any time immediately adjusting play very much, and there is the defect such as artificial probabilistic hidden danger and working service complexity.
Model utility content
The utility model proposes a kind of oil cylinder and braking system, solve braking gap adjustment in prior art and not in time, easily there is the problem of the defect such as probabilistic hidden danger and working service complexity.
The technical solution of the utility model is achieved in that
A kind of oil cylinder, comprising:
First cylinder body and the second cylinder body, and the first cylinder body is connected and sealed after docking with the second cylinder body, forms a seal space;
First cylinder body and the second cylinder body are respectively arranged with the first hydraulic fluid port and the second hydraulic fluid port, and the first hydraulic fluid port is unidirectional hydraulic fluid port;
First piston, is arranged in seal space, and first piston one end and seal space form the first oil pocket;
Second piston is arranged in seal space, and one end is through seal space, be placed in outside seal space, and the second piston and seal space forms the second oil pocket;
The first piston the other end is located in the second piston;
Elasticity group, is arranged between first piston and the second piston.
As further technological scheme, also comprise:
First sealing guiding group, is arranged between first piston and the first cylinder body.
As further technological scheme, also comprise:
Second sealing guiding group, is arranged between the second piston and the second cylinder body.
As further technological scheme, also comprise:
3rd sealing guiding group, is arranged on the second piston through seal space end and the second cylinder body.
As further technological scheme, first piston comprises: first paragraph, second segment and the 3rd section, and the diameter of first paragraph, second segment and the 3rd section diminishes successively.
Preferably, bolt is connected with the second cylinder body through the first cylinder body.
The invention also discloses a kind of braking system, comprise oil feeding mechanism and arrestment mechanism, also comprise oil cylinder, oil cylinder is connected with oil feeding mechanism, and braking is just arranged on oil cylinder, and follows oil cylinder and carry out action.
Technical solutions of the utility model are by the cooperation of first piston, elasticity group and the second piston, realize automatically to adjust braking gap in the course of the work, to be suitable for the winch brake Braking system to oil-well rig, well repairing machine under different situations, while guarantee braking effect, avoid the generation of uncertain hidden danger, can maintenance difficulty be reduced by technique scheme simultaneously, improve dismounting efficiency;
In addition, by the design of the first sealing guiding group, the second sealing guiding group and the 3rd sealing guiding group, while guarantee sealing intensity, first piston and the second piston are better moved.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the unified embodiment of a kind of oil cylinder of the utility model and Brake System;
Fig. 2 is the structural representation of a kind of oil cylinder of the utility model and another embodiment of braking system.
In figure:
1, the first cylinder body; 2, the second cylinder body; 3, the first hydraulic fluid port; 4, the second hydraulic fluid port; 51, first paragraph; 52, second segment; 53, the 3rd section; 6, the second piston; 7, the first oil pocket; 8, the second oil pocket; 9, elasticity group; 10, the first sealing guiding group; 11, the second sealing guiding group; 12, the 3rd sealing guiding group; 13, oil feeding mechanism; 131, the first oil circuit; 132, the second oil circuit; 133, selector valve; 134, reduction valve; 14, arrestment mechanism; 141, the first tong arm; 142, the second tong arm; 143, back shaft; 144, the first backboard; 145, the second backboard; 146, first brake block; 147, the second brake block; 15, brake disc.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Fig. 1 ~ 2, a kind of oil cylinder that the utility model proposes, comprising:
First cylinder body 1 forms a seal space after being connected with the second cylinder body 2 docking, wherein, second cylinder body 2 one end is open large mouth, the other end is the osculum of necking down, the end face of big opening end is provided with tapped hole, in the utility model, is connected with tapped hole through after the first cylinder body 1 preferably through bolt, by the way, the speed of dismounting can be improved; Wherein,
First cylinder body 1 and the second cylinder body 2 are respectively arranged with the first hydraulic fluid port 3 and the second hydraulic fluid port 4, and the first hydraulic fluid port 3 is unidirectional hydraulic fluid port, that is, can by the first hydraulic fluid port 3 to oiling in seal space, but not by the first hydraulic fluid port 3 to oil extraction outside seal space;
First piston is arranged in seal space, and first piston one end and seal space form the first oil pocket 7, and the first oilhole is communicated with the first oil pocket 7; Wherein,
For ensureing the operations such as the installation better carrying out elasticity group 9, in the utility model, preferred first piston comprises first paragraph 51, second segment 52 and the 3rd section 53, and the diameter of first paragraph 51, second segment 52 and the 3rd section 53 diminishes successively, namely, the diameter being directly greater than second segment 52 of first paragraph 51, the diameter of second segment 52 is greater than the 3rd section 53 direct;
Second piston 6 is arranged in seal space, and second piston 6 one end is placed in outside seal space through seal space, and the second piston 6 forms the second oil pocket 8 with seal space, and the second oilhole is communicated with the second oil pocket 8; The other end of first piston is located in the second piston 6;
Elasticity group 9 is arranged between first piston and the second piston 6, along with first piston and the second piston 6 action and carry out deformation, in the utility model, elasticity group 9 can be oil pressure pump or pneumatic pump etc., preferred use disc spring, and produce for ensuring enough power, multiple disc spring is set in the utility model, composition disc spring group;
During work:
When braking, first hydraulic fluid port 3 fuel feeding, hydraulic oil enters the first oil pocket 7 by the first hydraulic fluid port 3, promote first piston action, as shown in Figure 1, first piston carries out crosswise movement, and then carry out transverse movement by first piston promotion elasticity group 9, make elasticity group 9 promote the second piston 6 and carry out transverse movement simultaneously, second piston 6 carries out motion stop motion after conflicting with target, continuation is promoted elasticity group 9 and continues motion by first piston, until the elastic force of elasticity group 9 reaches working solution force feed oil pressure P1, the thrust F1 that first piston produces, now elasticity group 9 decrement is L1, the thrust of the second piston 6 is also F1,
When needs unclamp, hydraulic oil enters the second oil pocket 8 by the second hydraulic fluid port 4, promote the second piston 6 toward carrying out opposite direction motion, stop thinking the first hydraulic fluid port 3 fuel feeding simultaneously, first hydraulic fluid port 3 is closed, because the first hydraulic fluid port 3 is unidirectional hydraulic fluid port, therefore the hydraulic oil in the first oil pocket 7 cannot be discharged, first piston cannot reversing motion, continue pressure elasticity group 9 under the effect of the therefore hydraulic oil of the second piston 6 in the second oil pocket 8 to carry out moving to limit position, now, oil pressure in second oil pocket 8 is P2, producing reverse thrust to the second piston 6 is F2, the decrement of elasticity group 9 is L2, second piston 6 return-stroke is △ L=L2-L1, therefore, at this moment gap of unclamping is △ L,
When again working, the hydraulic oil pressure release in the second oil pocket 8, elasticity group 9 promotes the second outer piston transverse movement △ L stroke and target is conflicted; At this moment, the releasing quantity of elasticity group 97 is △ L, and decrement is L1=L2-△ L, be directly proportional to decrement according to elasticity group 9 thrust, therefore now elasticity group 9 thrust is still F1, therefore the thrust of the second piston 6 is also F1, according to hydraulic principle, the oil pressure in the first oil pocket 7 is P1;
If any wearing and tearing, the stroke of the second piston 6 becomes large, and elasticity group 9 continues release, promote the second piston 6 transverse movement until withstand target, now elasticity group 9 releasing quantity increases, and decrement diminishes, thus thrust diminishes, oil pressure in first oil pocket 7 diminishes, and then the first hydraulic fluid port 3 is opened under the effect of fuel feeding oil pressure P1, and hydraulic oil enters the first oil pocket 7, promote first piston transverse movement, pressure elasticity group 9, allow the decrement of elasticity group 9 remain L1, thrust remains F1;
When again unclamping, because the first hydraulic fluid port 3 is closed, the hydraulic oil in the first oil pocket 7 cannot be discharged, and first piston cannot reversing motion, continue pressure elasticity group 9 reversing motion to limit position under the effect of the therefore hydraulic oil of the second piston 6 in the second oil pocket 8, unclamp gap and keep △ L constant;
When meeting urgency, the first oil pocket 7 fuel feeding cannot be given in time, but when needing oil cylinder to provide thrust to target, only need the hydraulic oil pressure release in the second oil pocket 8, the second piston 6 travels forward under the promotion of elasticity group 9, withstands target and provides thrust;
Because last time compensate for wearing clearance, therefore the travel forward stroke of △ L of current second piston 6 just withstands target, now elasticity group 9 amount of releasing also is △ L, the maintenance decrement of elasticity group 9 is still L1=L2-△ L, be directly proportional to decrement according to elasticity group 9 thrust, therefore now elasticity group 9 thrust is still F1, therefore the external thrust of the second piston 6 is also F1, ensures urgency safety.
By technique scheme, the automatic adjustment of braking gap can be realized, without the need to manual operation, while avoiding uncertain hidden danger to produce, reduce follow-up maintenance difficulties.
While ensureing sealing intensity, movement effects is not affected in the utility model, the preferred first sealing guiding group 10, second that arranges respectively seals guiding group 11 and the 3rd sealing guiding group 12, and wherein the first sealing guiding group 10 is arranged between first piston and the first cylinder body 1; Second sealing guiding group 11 is arranged between the second piston 6 and the second cylinder body 2; 3rd sealing guiding group 12 is arranged on the second piston 6 through seal space one end and the second cylinder body 2; Wherein,
First sealing guiding group 10, second seals guiding group 11 and the 3rd sealing guiding group 12 includes seal ring and guide ring, so just realizes not affecting normal motion while guarantee sealing.
The invention also discloses a kind of braking system, comprise oil feeding mechanism 13 and arrestment mechanism 14, also comprise oil cylinder, oil cylinder is connected with oil feeding mechanism 13, and braking is just arranged on oil cylinder, and follows oil cylinder and carry out action.
Oil feeding mechanism 13 comprises the first oil circuit 131 and the second oil circuit 132, and be arranged on the selector valve 133 on the first oil circuit 131 and the second oil circuit 132, wherein the first oil circuit 131 is connected with the first hydraulic fluid port 3, and the second oil circuit 132 is connected with the second hydraulic fluid port 4; For improving oil pressure to the impact of the first oil circuit 131, preferably reduction valve 134 is set on the first oil circuit 131;
Arrestment mechanism 14 comprises the first tong arm 141 and the second tong arm 142, and one end of the first tong arm 141 is connected with the first oil cylinder, one end of second tong arm 142 is connected with the second piston 6, back shaft 143 is provided with between the first tong arm 141 and the second tong arm 142, at first tong arm 141 the other end by pinned connection first backboard 144, first backboard 144 arranges first brake block 146, at second tong arm 142 the other end by pinned connection second backboard 145, people's backboard on the second brake block 147 is set;
The outside of the first oil cylinder and outer piston 8 is all provided with cylinder ear, cylinder ear is connected with the second tong arm 142 articulated form with the first tong arm 141 respectively by upper pin, be connected with articulated form with back shaft 143 two ends by bearing pin between first tong arm 141 and the second tong arm 142, thus the first tong arm 141 and the second tong arm 142 with back shaft 143 two ends for fulcrum forms lever construction, back shaft 143 is fixedly mounted on the tong holder of hydraulic disc type brake device, second tong arm 142 is connected with articulated form with the second backboard 145 with the first backboard 144 respectively by bearing pin with the second tong arm 142 bottom, inside first backboard 144 and the second backboard 145, first brake block 146 and the second brake block 147 are all installed, and first brake block 146 and the second brake block 147 form brake assemblage with brake disc 15, brake disc 15 is fixedly mounted on the winch drum shaft of needs braking, and rotates with winch drum.
The second hydraulic fluid port 4 on second cylinder body 2 connects the second oil circuit 132, the first hydraulic fluid port 3 on first cylinder body 1 is by connection first oil circuit 131, A hydraulic fluid port on first oil circuit 131 and the second oil circuit 132 selector valve 133 and B hydraulic fluid port, the oil-feed port P of selector valve 133 is connected oil supplying device and oil return apparatus respectively with oil return inlet T, and the first oil circuit 131 is provided with reduction valve 134;
During brake work, reversing valve operated 133 commutations, hydraulic oil in second oil pocket 812 is by the second oil circuit 132 draining pressure release, hydraulic oil gives the first hydraulic fluid port 3 fuel feeding by the first oil circuit 131 simultaneously, hydraulic oil enters the first oil pocket 7 by the first hydraulic fluid port 3, promote first piston transverse movement, first piston promotes the transverse movement of elasticity group 9, elasticity group 9 promotes the second piston 6 transverse movement, and then the first tong arm 141 and the second tong arm 142 top are opened, according to bar thick stick principle, first tong arm 141 and the second tong arm 142 bottom promote the second backboard 145 and the second backboard 145 drives the second brake block 147 and the second brake block 147 inwardly to move, until the second brake block 147 and the second brake block 147 clamp brake disc 15 form brake,
Second piston 6 outwards moves to the second brake block 147 and the second brake block 147 clamps rear stop motion with brake disc 15, continuation is promoted the transverse movement of pressure elasticity group 9 by the second piston 6, until elasticity group 9 elastic force reaches the thrust F1 that working solution force feed oil pressure P1 produces on the second piston 6, now elasticity group 9 decrement is L1, the thrust of the second piston 6 is also F1, and the clamping force of brake block and brake disc 15 reaches rating value.
During releasing of brake, reversing valve operated 133 reset, first oil circuit 131 pressure release, first hydraulic fluid port 3 is closed, and hydraulic oil gives the second hydraulic fluid port 4 fuel feeding by the second oil circuit 132 simultaneously, enters the second oil pocket 8, promote the second piston 6 reversing motion, and then make the first tong arm 141 and the second tong arm 142 reversing motion, according to bar thick stick principle, the bottom of the second tong arm 142 and the second tong arm 142 will drive the second brake block 147 and the second brake block 147 to open pine by the second backboard 145 and the second backboard 145 and stop.
Because the first hydraulic fluid port 3 is closed, hydraulic oil in first oil pocket 74 cannot be discharged, first piston cannot back move, continue pressure elasticity group 9 under the effect of the therefore hydraulic oil of the second piston 6 in the second oil pocket 8 and move to limit limit position, now, oil pressure in second oil pocket 8 is P2, producing reverse thrust to the second piston 6 is F2, elasticity group 9 decrement is L2, second piston 6 reverse stroke is △ L=L2-L1, therefore, the gap of unclamping of the second brake block 147 at this moment and the second brake block 147 is exactly the fixed interval (FI) that oil cylinder return-stroke △ L produces.
Again during reversing valve operated 133 commutation brake, hydraulic oil pressure release in second oil pocket 8, promotion second piston 6 to be moved △ L stroke by pressure elasticity group 9, clamp with brake disc 15 to first brake block 146 and the second brake block 147 and brake, pass through the first hydraulic fluid port 3 to the first oil pocket 74 fuel feeding simultaneously; At this moment, the releasing quantity of elasticity group 9 is △ L, and decrement is L1=L2-△ L, be directly proportional to decrement according to elasticity group 9 thrust, therefore now elasticity group 9 thrust is still F1, therefore the thrust of the second piston 6 is also F1, according to hydraulic principle, the oil pressure in the first oil pocket 7 is P1;
Wearing and tearing are had if any brake block, when braking gap becomes large, the target stroke of the second piston 6 becomes large, elasticity group 9 continues release, promote the second piston 6 outwards motion until first brake block 146 and the second brake block 147 clamp with brake disc 15 brakes, now elasticity group 9 releasing quantity increases, decrement diminishes, thus thrust diminishes, oil pressure in first oil pocket 7 diminishes, and then first hydraulic fluid port 3 open under the effect of fuel feeding oil pressure P1, hydraulic oil enters the first oil pocket 7, promotion first piston travels forward, pressure elasticity group 9, the decrement of elasticity group 9 is allowed to remain L1, thrust remains F1, and then the clamping force of first brake block 146 and the second brake block 147 pairs of brake discs 15 keeps rating value constant.When again unclamping, because the first hydraulic fluid port 3 is closed, the hydraulic oil in the first oil pocket 7 cannot be discharged, and first piston cannot back move, continue pressure elasticity group 9 reversing motion to extreme position under the effect of the therefore hydraulic oil of the second piston 6 in the second oil pocket 8, unclamp gap and keep △ L constant.
When meeting urgency and needing brake, and when at this moment fuel feeding cannot provide in time, only need reversing valve operated 133 the hydraulic oil pressure release in the second oil pocket 8, the second piston 6 outwards moves under the promotion of elasticity group 9, provides thrust.Wearing clearance is compensate for due to during normal braking last time, therefore the stroke of current second piston 6 outside motion △ L, brake block is just clamped brake disc 15, now elasticity group 9 amount of releasing also is △ L, the maintenance decrement of elasticity group 9 is still L1=L2-△ L, is directly proportional to decrement according to elasticity group 9 thrust, and therefore now the thrust of elasticity group 9 is still F1, therefore the thrust of the second piston 6 is also F1, ensure urgency safety.
These are 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 amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. an oil cylinder, is characterized in that, comprising:
First cylinder body (1) and the second cylinder body (2), and described first cylinder body (1) is connected and sealed after docking with described second cylinder body (2), forms a seal space;
Described first cylinder body (1) and the second cylinder body (2) are respectively arranged with the first hydraulic fluid port (3) and the second hydraulic fluid port (4), and described first hydraulic fluid port (3) is unidirectional hydraulic fluid port;
First piston, is arranged in described seal space, and described first piston one end and described seal space form the first oil pocket (7);
Second piston (6) is arranged in described seal space, and one end is through described seal space, is placed in outside described seal space, and described second piston (6) and described seal space form the second oil pocket (8);
The described first piston the other end is located in described second piston (6);
Elasticity group (9), is arranged between described first piston and described second piston (6).
2. oil cylinder as claimed in claim 1, is characterized in that, also comprise:
First sealing guiding group (11), is arranged between described first piston and described first cylinder body (1).
3. oil cylinder as claimed in claim 1, is characterized in that, also comprise:
Second sealing guiding group (11), is arranged between described second piston (6) and described second cylinder body (2).
4. oil cylinder as claimed in claim 1, is characterized in that, also comprise:
3rd sealing guiding group (12), is arranged on described second piston (6) through described seal space end and described second cylinder body (2).
5. oil cylinder as claimed in claim 1, it is characterized in that, described first piston comprises:
First paragraph (51), second segment (52) and the 3rd section (53), and the diameter of described first paragraph (51), described second segment (52) and described 3rd section (53) diminishes successively.
6. oil cylinder as claimed in claim 1, is characterized in that, bolt is connected with described second cylinder body (2) through described first cylinder body (1).
7. a braking system, comprise oil feeding mechanism (13) and arrestment mechanism (14), it is characterized in that, also comprise the oil cylinder as described in any one of claim 1 ~ 6, described oil cylinder is connected with described oil feeding mechanism (13), described braking is just arranged on described oil cylinder, and follows described oil cylinder and carry out action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870095.8U CN204493526U (en) | 2014-12-31 | 2014-12-31 | A kind of oil cylinder and braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870095.8U CN204493526U (en) | 2014-12-31 | 2014-12-31 | A kind of oil cylinder and braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493526U true CN204493526U (en) | 2015-07-22 |
Family
ID=53572846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420870095.8U Active CN204493526U (en) | 2014-12-31 | 2014-12-31 | A kind of oil cylinder and braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493526U (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 |
| CN109555800A (en) * | 2018-12-27 | 2019-04-02 | 佛山飞羽动力科技有限公司 | A kind of disc brake braking pump |
| CN112901687A (en) * | 2019-11-26 | 2021-06-04 | 江苏新迈机械有限公司 | Winch spring cylinder with braking function, working method of winch spring cylinder and winch |
-
2014
- 2014-12-31 CN CN201420870095.8U patent/CN204493526U/en active Active
Cited By (7)
| 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 |
| CN109555800A (en) * | 2018-12-27 | 2019-04-02 | 佛山飞羽动力科技有限公司 | A kind of disc brake braking pump |
| CN109555800B (en) * | 2018-12-27 | 2020-05-22 | 佛山飞羽动力科技有限公司 | Disc brake pump |
| CN112901687A (en) * | 2019-11-26 | 2021-06-04 | 江苏新迈机械有限公司 | Winch spring cylinder with braking function, working method of winch spring cylinder and winch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204493526U (en) | A kind of oil cylinder and braking system | |
| CN204308654U (en) | A kind of main shaft is forged a knife oil cylinder | |
| CN101576102A (en) | Mechanical self-locking hydraulic cylinder | |
| CN205117870U (en) | Other valves of ladle turret jar | |
| CN105927684A (en) | Floating clamp disc type brake with cooling channel | |
| CN104179745B (en) | Air channel changeover valve and use method thereof | |
| CN204152881U (en) | Fast Pressesforging hydraulic pressure unit master cylinder | |
| CN106736394A (en) | The blanking unit of brake pump gland feeder | |
| CN202628680U (en) | Compensation valve structure | |
| CN205312967U (en) | Novel single interface expander | |
| CN211009658U (en) | Brake clamp of brake pad support | |
| CN210795616U (en) | Safety brake device for winch | |
| CN206732476U (en) | The blanking unit of brake pump gland feeder | |
| CN209385542U (en) | A kind of hydraulic disc brake device | |
| CN202674114U (en) | Automatic brake hydraulic loop in case of failure of hydraulic disc type brake device | |
| CN202507101U (en) | Automatic workpiece claming device for rotary working table | |
| CN206047539U (en) | Stage clip device | |
| CN105584950B (en) | One kind keeps permanent interval work secure, integral brake cylinder automatically | |
| CN205315556U (en) | Floating caliper disc brake | |
| CN206316669U (en) | The bearing of hay mover head and the gear shaft transposer of gear shaft assembly machine | |
| CN204878812U (en) | Guide's plunger moment of torsion ball valve that declines | |
| CN204127390U (en) | A kind of automatically controlled combined type guiding valve | |
| CN202371181U (en) | Critical process valve for power station | |
| CN104265949A (en) | Electric combined sliding valve | |
| CN210912395U (en) | Hydraulic brake device of electric locomotive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |