CN104500618A - Normally-closed hydraulic brake - Google Patents
Normally-closed hydraulic brake Download PDFInfo
- Publication number
- CN104500618A CN104500618A CN201410782600.8A CN201410782600A CN104500618A CN 104500618 A CN104500618 A CN 104500618A CN 201410782600 A CN201410782600 A CN 201410782600A CN 104500618 A CN104500618 A CN 104500618A
- Authority
- CN
- China
- Prior art keywords
- brake
- bracket
- brake block
- hydraulic cylinder
- brake sheet
- 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.)
- Granted
Links
Abstract
The invention discloses a normally-closed hydraulic brake. The normally-closed hydraulic brake comprises a base fixing plate, two guide poles, a first brake pad carrier, a second brake pad carrier, a first brake pad, a second brake pad, a reset spring and a brake cylinder component. The two guide poles are vertically mounted on the base fixing plate. The first brake pad carrier sleeves the two guide poles. The first brake pad is mounted on the first brake pad carrier. The brake cylinder component comprises a hydraulic cylinder, a piston rod and a plurality of disc springs. A cover plate is arranged at the top of the hydraulic cylinder. The disc springs are compressed in the hydraulic cylinder by the cover plate. A joint communicated with the bottom of an inner cavity of the hydraulic cylinder is arranged on the lateral side of the hydraulic cylinder. A top plate is arranged at the upper end of the piston rod and is connected with the second brake pad carrier through a push rod. The second brake pad is mounted on the face, opposite to the first brake pad carrier, of the second brake pad carrier. The upper end of the reset spring is connected with a guide pole connecting plate, and the lower end of the reset spring is connected with the brake cylinder component. The normally-closed hydraulic brake is simple and compact in structure, convenient to operate and easy to control and produce.
Description
Technical field
The present invention relates to a kind of break, especially relate to a kind of Normally closed type hydraulic brake.
Background technique
Break is winch, lift operation controls most important safety installation, and the quality of brake performance directly decides winch, can lift normally work safely.In order to ensure safe and reliable in each stages such as transport, installation, operations of winch, lift, the working state of existing winch, brake for lifting machine adopts Normally closed type usually.
The break that current winch, lift use, is mainly arranged in the brake disc both sides of winch, lift by pair of hydraulic cylinders, and realizes implementing braking or brake off operation to winch, lift by the elastic restoring force of spring or disc spring.
Because the oil hydraulic cylinder in a pair break of winch, lift brake disc both sides can not be completely the same in manufacturing process, therefore, apply existing winch, brake for lifting machine implement braking or brake off operation operation time, two master cylinder cannot hold the brake disc of winch, lift tightly by Complete Synchronization, so just make some brake blocks because of excessive wear premature failure, thus reduce the working life of brake block, increase the supplementary maintenance time.Therefore, how to overcome that two master cylinder cannot Complete Synchronization holds winch tightly, the brake disc of lift is a technical problem anxious to be resolved.
Summary of the invention
In order to solve the technical problem, the invention provides a kind of compact structure, single hydraulic cylinder with the hydraulic pressure normally closed brake of spring reset function.
The technical solution used in the present invention is: comprise base fixing plate, two guide pillars, first brake sheet bracket, the second brake block bracket, first brake sheet, the second brake block, Returnning spring and master cylinder assemblies; Two guide pillars are vertically mounted on base fixing plate, and the top of two guide pillars is connected by guide pillar connecting plate; First brake sheet bracket corresponds to two guide pillars and be provided with two pilot holes, be sleeved on two guide pillars by pilot hole, first brake sheet bracket is provided with dovetail groove, first brake sheet is provided with corresponding dovetail configuration, and the dovetail configuration of first brake sheet is arranged in the dovetail groove of first brake sheet bracket; Multiple disc springs that described master cylinder assembly comprises hydraulic cylinder, is arranged on the piston rod in hydraulic cylinder and is set with on the piston rod, the top of hydraulic cylinder is provided with cover plate, and disc spring is compressed in hydraulic cylinder by cover plate; Hydraulic cylinder side is provided with oil connection, and oil connection is communicated with the bottom of hydraulic cylinder inner chamber by hydraulic pressure oilhole; Piston rod upper end is provided with top board; Described hydraulic cylinder is provided with multiple push-rod hole, and the axis being parallel of push-rod hole, in the axis of piston rod, is provided with push rod in push-rod hole, and the top of push rod is connected with top board, and the bottom of push rod is connected with the second brake block bracket; The face that second brake block bracket is relative with first brake sheet bracket is provided with dovetail groove, and the second brake block is provided with corresponding dovetail configuration, and the dovetail configuration of the second brake block is arranged in the dovetail groove of the second brake block bracket; The upper end of described Returnning spring is connected with guide pillar connecting plate, and lower end is connected with master cylinder assembly.
In above-mentioned hydraulic pressure normally closed brake, the cover plate of described master cylinder assembly is installed with sensor fixation plate, sensor fixation plate is provided with non-contact type tachometric sensor, corresponding to non-contact type tachometric sensor, top board is provided with magnet.
In above-mentioned hydraulic pressure normally closed brake, described base fixing plate is provided with dovetail groove, multiple screw hole is provided with in dovetail groove, corresponding to the screw hole in the dovetail groove of base fixing plate, be provided with tapped hole bottom the hydraulic cylinder of master cylinder assembly, and be fixedly mounted on base fixing plate by screw.
In above-mentioned hydraulic pressure normally closed brake, described Returnning spring is arranged between base fixing plate and first brake sheet bracket.
In above-mentioned hydraulic pressure normally closed brake, bottom the hydraulic cylinder of described master cylinder assembly, be provided with T stage, the second described brake block bracket correspond to T stage and be provided with T-slot.
In above-mentioned hydraulic pressure normally closed brake, described multiple disc springs are divided into organizes setting more, and often group comprises two disc springs in parallel, connects between many group disc springs.
In above-mentioned hydraulic pressure normally closed brake, described first brake sheet and the second brake block are respectively equipped with cooling water channel, and cooling water channel two ends are provided with pipe coupling.
In above-mentioned hydraulic pressure normally closed brake, described first brake sheet is provided with two rectangular boss, the two ends of first brake sheet are respectively equipped with two tapped holes, corresponding to two rectangular boss of first brake sheet, first brake sheet bracket is provided with two rectangular recess, and corresponding to the tapped hole at first brake sheet two ends, first brake sheet bracket is provided with screw hole, two rectangular boss of first brake sheet are inlaid in two rectangular recess of first brake sheet bracket, and are fixedly connected with by screw.
In above-mentioned hydraulic pressure normally closed brake, the second described brake block is provided with two rectangular boss, the two ends of the second brake block are respectively equipped with two screw threads, corresponding to two rectangular boss of the second brake block, second brake block bracket is provided with two rectangular recess, and corresponding to the tapped hole at the second brake block two ends, the second brake block bracket is provided with screw hole, two rectangular boss of the second brake block are inlaid in two rectangular recess of first brake sheet bracket, and are fixedly connected with by screw.
Compared with prior art, the invention has the beneficial effects as follows:
1) compact structure of the present invention, boundary dimension is little, lightweight, and the parts that can be used as winch or lift are mounted on winch, lift brake disc side, for miscellaneous part abdicates more installation and working space.
2) the second brake block of the present invention can under the effect of Returnning spring, axially moves up and down along two guide pillars, thus guarantees that suffered by first brake sheet and the second brake block, brake disc friction torque is identical, and brake block wearing and tearing are identical.
3) the present invention is simple and reliable for structure, is convenient to hydraulic control, is easy to manufacturing, and cost is low.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention.
Fig. 2 is rear view of the present invention.
Fig. 3 is the structural representation of first brake sheet bracket of the present invention.
Fig. 4 is the structural representation of first brake sheet bracket base of the present invention.
Fig. 5 is the structural representation of first brake sheet of the present invention.
Fig. 6 is the structural representation of the second brake block of the present invention.
Fig. 7 is master cylinder assemble cross-section of the present invention.
Fig. 8 is the structural representation of hydraulic cylinder of the present invention.
Fig. 9 is the structural representation bottom hydraulic cylinder of the present invention.
Figure 10 is the structural representation of the second brake block bracket of the present invention.
Figure 11 is the structural representation of the second brake block bracket base of the present invention.
Figure 12 is the structural representation of Returnning spring mounting type embodiment 2 of the present invention.
Figure 13 is the structural representation of first brake sheet embodiment 2 of the present invention.
Figure 14 is the structural representation of the second brake block embodiment 2 of the present invention.
Figure 15 is the structural representation of first brake sheet cradle embodiment 2 of the present invention.
Figure 16 is the structural representation of the bottom of the second brake block cradle embodiment 2 of the present invention.
Figure 17 is the structural representation that the cooling water channel of first brake sheet of the present invention or the second brake block is arranged.
Specific embodiments
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in figures 1 to 6, the present invention includes base fixing plate 1, two guide pillars 4, first brake sheet bracket 3, second brake block bracket 11, first brake sheet 12, second brake block 11-1, two Returnning springs 13 and master cylinder assembly 5, the bottom of two guide pillars 4 is fixed on base fixing plate 1 by bolt 2, and two guide pillars 4 are arranged perpendicular to base fixing plate 1.First brake sheet bracket 3 corresponds to two guide pillars 4 and be provided with two pilot hole 3-1, be sleeved on two guide pillars 4 by pilot hole 3-1, one step surface of first brake sheet bracket 3 is provided with dovetail groove 16, first brake sheet 12 is provided with the dovetail configuration 12-1 corresponding with dovetail groove 16, and the dovetail configuration 12-1 of first brake sheet 12 is arranged in the dovetail groove 16 of first brake sheet bracket 3.Another step surface of first brake sheet bracket 3 is provided with dovetail groove 15, screw hole 14 is provided with in dovetail groove 15, be provided with bottom master cylinder assembly 5 with in first brake sheet bracket 3 dovetail groove 15 the corresponding tapped hole of screw hole 14, and by screw, master cylinder assembly 5 to be fixedly connected with first brake sheet bracket 3.The top of two guide pillars 4 is installed with guide pillar connecting plate 6 by bolt 7, two Returnning spring 13 one end are connected with guide pillar connecting plate 6, the other end is sleeved in the spring pilot hole 27 on master cylinder assembly 5, and master cylinder assembly 5 and first brake sheet bracket 3 axially can move up and down along two guide pillars 4 under Returnning spring 13 acts on.
As Figure 7-9, described master cylinder assembly 5 comprises hydraulic cylinder 18, be sleeved on many groups disc spring 25 of piston rod 24 in hydraulic cylinder 18 and series connection, described many groups disc spring 25, and often group comprises two disc springs 25 in parallel.Many groups disc spring 25 is sleeved on piston rod 24, the top of hydraulic cylinder 18 is installed with cover plate 19 by bolt 20, disc spring 25 is compressed in hydraulic cylinder 18 by cover plate 19, hydraulic cylinder 18 side is provided with oil connection 17, oil connection 17 is communicated with the bottom of hydraulic cylinder 18 inner chamber by hydraulic pressure oilhole, and during use, oil connection 17 is connected with hydraulic power unit by hydraulic tube.Piston rod 24 upper end is installed with top board 23.Hydraulic cylinder 18 is provided with four push-rod holes, and the axis of push-rod hole and the axis being parallel of piston rod 24, be provided with a push rod 21 in each push-rod hole.Top board 23 is provided with the push-rod hole 26 corresponding with the push-rod hole on hydraulic cylinder 18, push rod 21 top is fixed by bolt 22 and top board 23, as shown in Figure 10,11, coaxial with four bolt mounting holes 30 on the second brake block bracket 11 respectively bottom push rod 21, and be fixedly connected with the second brake block bracket 11 by four bolts.Hydraulic cylinder 18 is provided with T stage 28, corresponding to T stage 28, second brake block bracket 11 is provided with T-slot 29, the T stage 28 of hydraulic cylinder 18 is arranged in the T-slot 29 of the second brake block bracket 11, can slide up and down along the second brake block bracket 11 T-slot 29, second brake block bracket 11 is provided with dovetail groove 11-2, and the second brake block 11-1 is provided with corresponding dovetail configuration 11-1-1, and the dovetail configuration 11-1-1 of the second brake block 11-1 is arranged in the dovetail groove 11-2 of the second brake block bracket 11.
The cover plate 16 of master cylinder assembly 5 is installed with sensor fixation plate 8, non-contact type tachometric sensor 9 and non-contact type tachometric sensor 9-1 are fixedly mounted on sensor fixation plate 8, magnet 10 and magnet 10-1 are separately fixed on the top board 23 of master cylinder assembly 5, and corresponding with non-contact type tachometric sensor 9 and non-contact type tachometric sensor 9-1 respectively.Wherein, non-contact type tachometric sensor 9 is for detecting folding situation of the present invention, and non-contact type tachometric sensor 9-1 is for detecting the abrasion condition of brake shoe 12.Be fixed on the first brake sheet 12 on first brake sheet bracket 3 dovetail groove 16 under conventional sense and the distance be fixed between the second brake block 11-1 on the second brake block bracket 11 dovetail groove 11-2 is less than the thickness of winch brake dish, now break is in normally off.When the present invention is in open mode, be fixed on the first brake sheet 12 on first brake sheet bracket 3 dovetail groove 16 and the distance be fixed between the second brake block 11-1 on the second brake block bracket 11 dovetail groove 11-2 will be greater than the thickness of winch brake dish.
As shown in figure 12, the Returnning spring 13 in the present invention can be arranged between base fixing plate 1 and first brake sheet bracket 3.
As shown in figures 13-16, first brake sheet bracket 3, the second brake block bracket 11 in the present invention, first brake sheet 12 and the second brake block 11-1 also can adopt following linkage structure:
Described first brake sheet 12 is provided with two rectangular boss 31, the two ends of first brake sheet 12 are respectively equipped with two tapped holes 32, corresponding to two rectangular boss 31 of first brake sheet 12, first brake sheet bracket 3 is provided with two rectangular recess 3-2, corresponding to the tapped hole 32 at first brake sheet 12 two ends, first brake sheet bracket 3 is provided with screw hole 3-3, two rectangular boss 31 of first brake sheet 12 are inlaid in two rectangular recess 3-2 of first brake sheet bracket 3, and are fixedly connected with by screw.
The second described brake block 11-1 is provided with two rectangular boss 33, the two ends of the second brake block 11-1 are respectively equipped with two tapped holes 34, corresponding to two rectangular boss 33 of the second brake block 11-1, second brake block bracket 11 is provided with two rectangular recess 11-3, corresponding to the tapped hole 34 at the second brake block 11-1 two ends, second brake block bracket 11 is provided with screw hole 11-4, two rectangular boss 33 of the second brake block 11-1 are inlaid in two rectangular recess 11-3 of first brake sheet bracket 11, and are fixedly connected with by screw.
As shown in figure 17, described first brake sheet 12 in the present invention and the second brake block 11-1 are provided with cooling water channel 35, the two ends of cooling water channel 35 are provided with pipe coupling 36, are connected during use by pipe coupling 36 with external water source, for cooling the heat produced in braking process.
working principle of the present invention is:
The structure of non-contact type tachometric sensor 9 and non-contact type tachometric sensor 9-1 is open in the patent of 200820052813.5 in the patent No., and the support first base fixing plate 1 being fixed on winch or lift before work makes the brake block 12 on first brake sheet bracket 3 and the second brake block 11-1 on the second brake block bracket 11 be fitted in winch or lift brake disc both sides respectively.Meanwhile, in advance adjustment non-contact type tachometric sensor 9 and magnet 10 and the distance between non-contact type tachometric sensor 9-1 and magnet 10-1.
The braking force of Normally closed type hydraulic brake of the present invention adopts the restoring force produced by the resiliently deformable of disc spring 25 to provide, under conventional sense, the present invention is in normally off always, now, because the distance between magnet 10 and non-contact type tachometric sensor 9 is less, trigger non-contact type tachometric sensor 9 and send closure signal.When needs release brake, first by hydraulic power unit output hydraulic pressure oil duct hydraulic cylinder 18 intracavity bottom, promoting piston rod 24 drives top board 23 and push rod 21 to move up, thus drive the second brake block bracket 11 and the second brake block 11-1 be fixed on the second brake block bracket 11 to move up, distance between first brake sheet 12 and the second brake block 11-1 is increased, now, distance between magnet 10 and non-contact type tachometric sensor 9 will become large, when distance between magnet 10 and non-contact type tachometric sensor 9 increases to a certain degree, non-contact type tachometric sensor 9 loss signal, thus determine that the present invention is in open mode.When the wearing and tearing of brake block 12 increase gradually, distance between magnet 10-1 and non-contact type tachometric sensor 9-1 will diminish, when distance between magnet 10-1 and non-contact type tachometric sensor 9-1 is varied down to a certain degree, triggering non-contact type tachometric sensor 10 is sent signal, thus determine that the wearing and tearing of brake block 12 are excessive, now, first brake sheet 12 and the second brake block 11-1 need be changed.
Claims (9)
1. a Normally closed type hydraulic brake, is characterized in that: comprise base fixing plate, two guide pillars, first brake sheet bracket, the second brake block bracket, first brake sheet, the second brake block, Returnning spring and master cylinder assemblies; Two guide pillars are vertically mounted on base fixing plate, and the top of two guide pillars is connected by guide pillar connecting plate; First brake sheet bracket corresponds to two guide pillars and be provided with two pilot holes, be sleeved on two guide pillars by pilot hole, first brake sheet bracket is provided with dovetail groove, first brake sheet is provided with corresponding dovetail configuration, and the dovetail configuration of first brake sheet is arranged in the dovetail groove of first brake sheet bracket; Multiple disc springs that described master cylinder assembly comprises hydraulic cylinder, is arranged on the piston rod in hydraulic cylinder and is set with on the piston rod, the top of hydraulic cylinder is provided with cover plate, and disc spring is compressed in hydraulic cylinder by cover plate; Hydraulic cylinder side is provided with oil connection, and oil connection is communicated with the bottom of hydraulic cylinder inner chamber by hydraulic pressure oilhole; Piston rod upper end is provided with top board; Described hydraulic cylinder is provided with multiple push-rod hole, and the axis being parallel of push-rod hole, in the axis of piston rod, is provided with push rod in push-rod hole, and the top of push rod is connected with top board, and the bottom of push rod is connected with the second brake block bracket; The face that second brake block bracket is relative with first brake sheet bracket is provided with dovetail groove, and the second brake block is provided with corresponding dovetail configuration, and the dovetail configuration of the second brake block is arranged in the dovetail groove of the second brake block bracket; The upper end of described Returnning spring is connected with guide pillar connecting plate, and lower end is connected with master cylinder assembly.
2. Normally closed type hydraulic brake according to claim 1, it is characterized in that: the cover plate of described master cylinder assembly is installed with sensor fixation plate, sensor fixation plate is provided with non-contact type tachometric sensor, and corresponding to non-contact type tachometric sensor, top board is provided with magnet.
3. Normally closed type hydraulic brake according to claim 1, it is characterized in that: described base fixing plate is provided with dovetail groove, multiple screw hole is provided with in dovetail groove, corresponding to the screw hole in the dovetail groove of base fixing plate, be provided with tapped hole bottom the hydraulic cylinder of master cylinder assembly, and be fixedly mounted on base fixing plate by screw.
4. Normally closed type hydraulic brake according to claim 1, is characterized in that: be provided with T stage bottom the hydraulic cylinder of described master cylinder assembly, the second described brake block bracket corresponds to T stage and is provided with T-slot.
5. Normally closed type hydraulic brake according to claim 1, is characterized in that: described multiple disc springs are divided into organizes setting more, and often group comprises two disc springs in parallel, connects between many group disc springs.
6. Normally closed type hydraulic brake according to claim 1, is characterized in that: described first brake sheet and the second brake block are respectively equipped with cooling water channel, and cooling water channel two ends are provided with pipe coupling.
7. the Normally closed type hydraulic brake according to claim arbitrary in claim 1-6, is characterized in that: described Returnning spring is arranged between base fixing plate and first brake sheet bracket.
8. the Normally closed type hydraulic brake according to claim arbitrary in claim 1-6, it is characterized in that: described first brake sheet is provided with two rectangular boss, the two ends of first brake sheet are respectively equipped with two tapped holes, corresponding to two rectangular boss of first brake sheet, first brake sheet bracket is provided with two rectangular recess, corresponding to the tapped hole at first brake sheet two ends, first brake sheet bracket is provided with screw hole, two rectangular boss of first brake sheet are inlaid in two rectangular recess of first brake sheet bracket, and are fixedly connected with by screw.
9. the Normally closed type hydraulic brake according to claim arbitrary in claim 1-6, it is characterized in that: the second described brake block is provided with two rectangular boss, the two ends of the second brake block are respectively equipped with two screw threads, corresponding to two rectangular boss of the second brake block, second brake block bracket is provided with two rectangular recess, corresponding to the tapped hole at the second brake block two ends, second brake block bracket is provided with screw hole, two rectangular boss of the second brake block are inlaid in two rectangular recess of first brake sheet bracket, and are fixedly connected with by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782600.8A CN104500618B (en) | 2014-12-16 | 2014-12-16 | Normally-closed hydraulic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782600.8A CN104500618B (en) | 2014-12-16 | 2014-12-16 | Normally-closed hydraulic brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500618A true CN104500618A (en) | 2015-04-08 |
| CN104500618B CN104500618B (en) | 2017-02-22 |
Family
ID=52942050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410782600.8A Active CN104500618B (en) | 2014-12-16 | 2014-12-16 | Normally-closed hydraulic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500618B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3842949A (en) * | 1972-02-28 | 1974-10-22 | Girling Ltd | Disc brakes |
| CN101387323A (en) * | 2008-10-10 | 2009-03-18 | 中国矿业大学 | Disk brake for monitoring brake positive pressure |
| CN101660505A (en) * | 2009-09-23 | 2010-03-03 | 南方天合底盘系统有限公司 | Brake caliper assembly of normally open type wind driven generator main shaft system |
| CN201517573U (en) * | 2009-10-15 | 2010-06-30 | 焦作市制动器开发有限公司 | Single-spring floating normally closed brake |
| CN102040175A (en) * | 2011-01-26 | 2011-05-04 | 耒阳市湘发环保机械制造有限公司 | Brake method of lifting winch/lifting machine for mines and disc-shaped brake |
| CN102562873A (en) * | 2012-02-21 | 2012-07-11 | 山西江淮重工有限责任公司 | High-speed shaft brake of wind turbine generator set |
| CN102913570A (en) * | 2012-10-31 | 2013-02-06 | 焦作瑞塞尔盘式制动器有限公司 | Hydraulic brake |
| CN103527684A (en) * | 2013-10-23 | 2014-01-22 | 大连华锐重工集团股份有限公司 | Industrial hydraulic disk brake |
| CN204327812U (en) * | 2014-12-16 | 2015-05-13 | 湖南科技大学 | A kind of Normally closed type hydraulic brake |
-
2014
- 2014-12-16 CN CN201410782600.8A patent/CN104500618B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3842949A (en) * | 1972-02-28 | 1974-10-22 | Girling Ltd | Disc brakes |
| CN101387323A (en) * | 2008-10-10 | 2009-03-18 | 中国矿业大学 | Disk brake for monitoring brake positive pressure |
| CN101660505A (en) * | 2009-09-23 | 2010-03-03 | 南方天合底盘系统有限公司 | Brake caliper assembly of normally open type wind driven generator main shaft system |
| CN201517573U (en) * | 2009-10-15 | 2010-06-30 | 焦作市制动器开发有限公司 | Single-spring floating normally closed brake |
| CN102040175A (en) * | 2011-01-26 | 2011-05-04 | 耒阳市湘发环保机械制造有限公司 | Brake method of lifting winch/lifting machine for mines and disc-shaped brake |
| CN102562873A (en) * | 2012-02-21 | 2012-07-11 | 山西江淮重工有限责任公司 | High-speed shaft brake of wind turbine generator set |
| CN102913570A (en) * | 2012-10-31 | 2013-02-06 | 焦作瑞塞尔盘式制动器有限公司 | Hydraulic brake |
| CN103527684A (en) * | 2013-10-23 | 2014-01-22 | 大连华锐重工集团股份有限公司 | Industrial hydraulic disk brake |
| CN204327812U (en) * | 2014-12-16 | 2015-05-13 | 湖南科技大学 | A kind of Normally closed type hydraulic brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104500618B (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104930081A (en) | Normally-closed fixed belleville spring caliper disc brake | |
| CN204727532U (en) | Sure brake in a kind of ladle carne lifting mechanism | |
| CN103527684A (en) | Industrial hydraulic disk brake | |
| CN204327812U (en) | A kind of Normally closed type hydraulic brake | |
| CN104500618A (en) | Normally-closed hydraulic brake | |
| CN203413004U (en) | Normally closed butt-clamp braking device | |
| CN204057839U (en) | A kind of crane in bridge type hydraulic brake system | |
| CN204372003U (en) | A kind of pincers of adjustable brake automatically | |
| CN210423498U (en) | Floating caliper type disc brake structure | |
| CN203098685U (en) | Rear-left brake cylinder of truck | |
| CN103195843A (en) | Brake body and disc brake configured with same | |
| CN102135148A (en) | Electric pincer brake | |
| CN203477134U (en) | Independent double-semicircular-disc type brake | |
| CN202431800U (en) | Single-action brake wheel cylinder | |
| CN205013531U (en) | Caliper disk brake | |
| CN203098694U (en) | Dual-cylinder piston type brake cylinder of truck | |
| CN203612874U (en) | Double-driving and double-braking improved structure for single-driving and double-braking dragging machine brake | |
| CN103663240A (en) | Elevator disc brake with locking function | |
| CN203717714U (en) | Three-stage pressure control valve for controlling wet type clutches | |
| CN213870834U (en) | High-speed pneumatic brake disc brake axle | |
| CN203888824U (en) | Integrated pressure control device | |
| CN209083870U (en) | The integral stop of having electronic parking clamps assembly | |
| CN102425631A (en) | Single-action brake wheel cylinder | |
| CN202580263U (en) | Single-handle pilot valve with steel ball positioning | |
| CN106949175A (en) | A kind of floating clamp arrestment mechanism of slip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |