CN104315047A - Piston rod brake device - Google Patents
Piston rod brake device Download PDFInfo
- Publication number
- CN104315047A CN104315047A CN201410637589.6A CN201410637589A CN104315047A CN 104315047 A CN104315047 A CN 104315047A CN 201410637589 A CN201410637589 A CN 201410637589A CN 104315047 A CN104315047 A CN 104315047A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- cylinder barrel
- locking block
- pull bar
- brake
- 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.)
- Pending
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- Actuator (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to a brake device which maintains extension and retraction positions of a piston rod, in particular to a piston rod brake device which is needed by sudden stop of a cylinder during the moving process of the cylinder, and uses a pneumatic element as a power source, can lock moving positions of an air cylinder, the piston rod of a hydraulic rod and other cylindrical guide pillars, and belongs to the pneumatic hydraulic technology field. The piston rod brake device comprises a cylinder barrel, wherein a plurality of locking blocks are arranged in the cylinder barrel, and a plurality of brake pads are arranged on the inner side of each locking block, an air sac is arranged on the inner wall of the cylinder barrel and each locking block, and inflation inlets communicated with the air sacs are formed in the side wall of the cylinder barrel. When the air sacs are inflated through the inflation inlets, the air sacs swell and compress the locking blocks towards the inner side of the cylinder barrel, and therefore the brake pads at the front ends of the locking blocks are driven to tightly hold the piston rod installed at the central position of the piston rod brake device. The piston rod brake device swells the air sacs by supplying air to the air sacs so as to push the locking blocks, provides stable clamping force, rapidly and reliably brakes the piston rod, and is large in brake force and reliable in reset ability.
Description
Technical field
The present invention relates to a kind of piston rod to stretch the braking device of holding position, specifically for needing the brake appts in anxious stopping time in cylindrical body movement process, take pneumatic element as power source, by the piston rod of cylinder, hydraulic rod and the locked movement position of other cylindrical directional post, airdraulics field can be belonged to.
Background technique
Individual in the prior art, cylinder piston rod braking device is primarily of cylinder and three-position electromagnetic valve composition.Because gas has the inertia of compressibility and piston rod movement, particularly large-scale cylinder, the inertia that the piston of its motion and piston rod produce is very huge.If still adopt original brake technique, the solenoid valve life-span can be affected, and unreliable, repair and replacement expense is high etc., and series of problems can not get solving all the time, has a strong impact on the lifting of manufacturing efficiency and the industrial structure, constrains production development.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thus a kind of piston rod braking device is provided, can lift piston rod clamping force, piston rod surface is not damaged during clamping, improve working life, reduce the expenses such as installation, maintenance, maintenance, and can enhance productivity and save manufacture cost.
According to technological scheme provided by the invention, piston rod braking device comprises cylinder barrel, it is characterized in that: be provided with multiple locking block in cylinder barrel, is provided with several brake blocks inside each locking block; Air bag is provided with between described inner wall of cylinder and multiple locking block, cylinder barrel sidewall is provided with the inflation inlet of communicated air bags, when being inflated in air bag by inflation inlet, air bag expands and compresses locking block to the inside, thus drives the brake block of locking block front end to hold the piston rod being arranged on central position tightly; When being exitted from air bag by inflation inlet, air bag shrinks, thus makes the brake block of locking block front end decontrol piston rod; Described cylinder barrel upper end is bolted upper end cap, and cylinder barrel lower end is provided with lower end cap and base.
Further, locking block is four, is provided with two brake blocks inside each locking block.
Further, base connects connecting bolt, connecting bolt upper end is successively through lower end cap and base, and by nut check, connecting bolt is provided with spring, and spring upper and lower end compresses respectively by nut and base.
Further, be provided with pull bar installation cavity in locking block, be provided with pull bar in pull bar installation cavity, pull bar upper and lower end is separately fixed on upper end cap and lower end cap, and the diameter of pull bar installation cavity is greater than the diameter of pull bar.
Further, multiple locking block is uniformly distributed along cylinder barrel circumferencial direction.
Compared with the prior art the present invention has the following advantages:
Structure of the present invention is simple, compact, reasonable, by air feed, air bag is swollen and promotes locking block, provides clamping force to stablize, and brake is reliable rapidly, and brake weight is large, and reset capability is reliable; The brake block of nylon material can not crush piston rod surface, long service life; Brake block can exchange easily and change, maintenance, easy to maintenance, and can save a large amount of production and manufacture cost.
Accompanying drawing explanation
Fig. 1 is that the present invention partly cuts open figure.
Fig. 2 is stereogram of the present invention.
Fig. 3 is cut-away view of the present invention.
Description of reference numerals: 1-base, 2-lower end cap, 3-upper end cap, 4-air bag, 5-locking block, 6-brake block, 7-pull bar, 8-pull bar installation cavity, 9-cylinder barrel, 10-spring, 11-connecting bolt, 12-inflation inlet.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the present invention below:
As shown in Fig. 1 ~ 3, the present invention mainly comprises cylinder barrel 9, is provided with multiple locking block 5 in cylinder barrel 9, and multiple locking block 5 is uniformly distributed along cylinder barrel 9 circumferencial direction.Several brake blocks 6 are provided with inside each locking block 5.
Be provided with air bag 4 between described cylinder barrel 9 inwall and multiple locking block 5, cylinder barrel 9 sidewall is provided with the inflation inlet 12 of communicated air bags 4.When being inflated in air bag 4 by inflation inlet 12, air bag 4 expands and compresses locking block 5 to the inside, thus drives the brake block 6 of locking block 5 front end to hold the piston rod being arranged on central position tightly.When being exitted from air bag 4 by inflation inlet 12, air bag 4 shrinks, thus makes the brake block 6 of locking block 5 front end decontrol piston rod.
In embodiment as shown in Figure 3, described locking block 5 is four, is provided with two brake blocks 6 inside each locking block 5.
Described cylinder barrel 9 upper end is bolted upper end cap 3, and cylinder barrel 9 lower end is provided with lower end cap 2 and base 1, base 1 connects connecting bolt 11, and nut check successively through lower end cap 2 and base 1, and is passed through in connecting bolt 11 upper end.Described connecting bolt 11 is provided with spring 10, and spring 10 upper and lower end compresses respectively by nut and base 1.
Be provided with pull bar installation cavity 8 in described locking block 5, be provided with pull bar 7 in pull bar installation cavity 8, pull bar 7 upper and lower end is separately fixed on upper end cap 3 and lower end cap 2.Pull bar 7 prevents locking block 5 from running helter-skelter in cylinder barrel 9, and the diameter of pull bar installation cavity 8 is greater than the diameter of pull bar 7, makes locking block 5 can do the movement of certain limit in cylinder barrel 9.
The present invention makes air bag swell by air feed and promotes locking block, provides clamping force to stablize, and brake is reliable rapidly, and brake weight is large, and reset capability is reliable.The brake block of nylon material can not crush piston rod surface, long service life; Brake block can exchange easily and change, maintenance, easy to maintenance, and can save a large amount of production and manufacture cost.
Claims (5)
1. a piston rod braking device, comprises cylinder barrel (9), it is characterized in that: be provided with multiple locking block (5) in cylinder barrel (9), and each locking block (5) inner side is provided with several brake blocks (6); Air bag (4) is provided with between described cylinder barrel (9) inwall and multiple locking block (5), cylinder barrel (9) sidewall is provided with the inflation inlet (12) of communicated air bags (4), when passing through inflation inlet (during 120 inflation middle to air bag (4), air bag (4) expands and compresses locking block (5) to the inside, thus drives the brake block (6) of locking block (5) front end to hold the piston rod being arranged on central position tightly; When being exitted from air bag (4) by inflation inlet (12), air bag (4) shrinks, thus makes the brake block (6) of locking block (5) front end decontrol piston rod; Described cylinder barrel (9) upper end is bolted upper end cap (3), and cylinder barrel (9) lower end is provided with lower end cap (2) and base (1).
2. piston rod braking device as claimed in claim 1, is characterized in that: described locking block (5) is four, and each locking block (5) inner side is provided with two brake blocks (6).
3. piston rod braking device as claimed in claim 1, it is characterized in that: described base (1) connects connecting bolt (11), connecting bolt (11) upper end is successively through lower end cap (2) and base (1), and pass through nut check, connecting bolt (11) is provided with spring (10), and spring (10) upper and lower end compresses respectively by nut and base (1).
4. piston rod braking device as claimed in claim 1, it is characterized in that: in described locking block (5), be provided with pull bar installation cavity (8), pull bar (7) is provided with in pull bar installation cavity (8), pull bar (7) upper and lower end is separately fixed on upper end cap (3) and lower end cap (2), and the diameter of pull bar installation cavity (8) is greater than the diameter of pull bar (7).
5. piston rod braking device as claimed in claim 1, is characterized in that: described multiple locking block (5) is uniformly distributed along cylinder barrel (9) circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637589.6A CN104315047A (en) | 2014-11-12 | 2014-11-12 | Piston rod brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637589.6A CN104315047A (en) | 2014-11-12 | 2014-11-12 | Piston rod brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315047A true CN104315047A (en) | 2015-01-28 |
Family
ID=52370328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410637589.6A Pending CN104315047A (en) | 2014-11-12 | 2014-11-12 | Piston rod brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104315047A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017717A (en) * | 2018-07-29 | 2018-12-18 | 合肥市智信汽车科技有限公司 | A kind of auxiliary braking system for vehicle backing |
| CN110439727A (en) * | 2019-08-02 | 2019-11-12 | 庄茜茜 | A kind of hydraulic accumulation energy system |
| CN112664509A (en) * | 2020-12-23 | 2021-04-16 | 中国人民解放军92578部队 | Telescopic multistage high-pressure cylinder ejection device |
-
2014
- 2014-11-12 CN CN201410637589.6A patent/CN104315047A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017717A (en) * | 2018-07-29 | 2018-12-18 | 合肥市智信汽车科技有限公司 | A kind of auxiliary braking system for vehicle backing |
| CN110439727A (en) * | 2019-08-02 | 2019-11-12 | 庄茜茜 | A kind of hydraulic accumulation energy system |
| CN112664509A (en) * | 2020-12-23 | 2021-04-16 | 中国人民解放军92578部队 | Telescopic multistage high-pressure cylinder ejection device |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |