CN103935349B - Hydraulic brake oil cylinder assembly for heavy-loaded vehicle bridge - Google Patents
Hydraulic brake oil cylinder assembly for heavy-loaded vehicle bridge Download PDFInfo
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- CN103935349B CN103935349B CN201410185905.0A CN201410185905A CN103935349B CN 103935349 B CN103935349 B CN 103935349B CN 201410185905 A CN201410185905 A CN 201410185905A CN 103935349 B CN103935349 B CN 103935349B
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- cylinder assembly
- hydraulic brake
- vehicle bridge
- brake cylinder
- push rod
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Abstract
The invention relates to a hydraulic brake oil cylinder assembly for a heavy-loaded vehicle bridge. The hydraulic brake oil cylinder assembly is arranged in the middle of the heavy-loaded vehicle bridge; the hydraulic brake oil cylinder assembly is connected with two cam swing arms on the inner side of the vehicle bridge through a brake fork connection assembly, and the cam swing arms are directly connected with a drum brake inside a rim; an installing fork is arranged at the top of the hydraulic brake oil cylinder assembly; the installing fork is fixedly connected with the brake fork connection assembly through a pin; a pushing rod is arranged on the upper side inside the hydraulic brake oil cylinder assembly; the pushing rod is connected with the installing folk through threads in a fastened mode. The hydraulic brake oil cylinder assembly for the heavy-loaded vehicle bridge has the advantages that the structure of the hydraulic brake oil cylinder assembly can be changed so as to be applied to the heavy-loaded vehicle bridge With the braking force required to be large enough and the size limited; meanwhile, compared with the vehicle bridge using a brake chamber, the hydraulic brake oil cylinder assembly has the advantages of being good in dustproof effect, convenient to install and the like.
Description
Technical field
The present invention relates to a kind of heavy duty vehicle bridge Hydraulic brake cylinder assembly.
Background technology
The maximum working pressure (MWP) of hydraulic jack is set up by overflow valve, and the operating pressure of hydraulic jack is set up by air relief valve, cylinder
Head can be used to clamp workpiece.Obtained a certain stable less than overflow valve set pressure when hydraulic cylinder piston is descending by air relief valve
Value, during backhaul, the oil of hydraulic jack epicoele can be through check valve oil sump tank.The maximum working pressure (MWP) of hydraulic jack is set up by overflow valve.
Decompression valve outlet pressure is set up by valve itself, and when valve remote control mouth is connected with valve port, the outlet pressure of valve is then set up by valve body.Valve
The remote pressure regulating valve of available low discharge.When hydraulic cylinder piston moves to right, pressure is set up by air relief valve, and when moving to left, its pressure is by air relief valve
Set up.It is connected on the remote control mouth of air relief valve with the proportion pilot pressure valve of small dimension, the outlet pressure making air relief valve is in certain limit
Inside obtain stepless changing.It is easily achieved the remote control to air relief valve operating pressure.Adoption rate air relief valve reduces pressure, and both can achieve to subtracting
The pressure step-less adjustment of pressure valve outlet, can greatly reduce the quantity of Hydraulic Elements again, so that system is simplified, control performance improves.
The braking function of existing overwhelming majority heavy duty vehicle bridge all controls driving and parking braking vehicle bridge using brake chamber
Realize.Brake chamber, in shape because the reason size such as braking pressure is substantially stationary, just has the size of minimum to vehicle bridge
Require.So special restricted to vehicle bridge size at some, and brake force requires sufficiently large heavy haul transport operating mode, does not have
Standby dust reduction capability, the vehicle bridge being braked using brake chamber cannot meet use demand.
Content of the invention
For weak point present in the problems referred to above, the present invention provides a kind of heavy duty vehicle bridge total with Hydraulic brake cylinder
Become.
For achieving the above object, the present invention provides a kind of heavy duty vehicle bridge Hydraulic brake cylinder assembly, including：Hydraulic braking
Hydraulic cylinder assembly is arranged in the middle of heavily loaded vehicle bridge；Described Hydraulic brake cylinder assembly passes through inside braking fork connecting assembly and vehicle bridge
Two cam swing arms are connected, and described cam swing arm is directly connected with the drum brake within wheel rim；Assembling fork is arranged on described
The top of Hydraulic brake cylinder assembly；Described assembling fork is fixedly connected by pin with described braking fork connecting assembly；Push rod
It is arranged on described Hydraulic brake cylinder assembly upper inside；Described push rod is connected by screw threads for fastening with described assembling fork；Dust-proof
It is enclosed within the junction of described push rod and described assembling fork；Enclosing cover and outer tube are arranged on described Hydraulic brake cylinder assembly outer surface
Top and bottom；Plunger case is arranged on described Hydraulic brake cylinder assembly inner lower；Push rod fixing device is arranged on institute
State plunger case top；One group of spring one and spring two are respectively provided with the step of described plunger case both sides.
Further improve as the present invention, described push rod fixing device includes the fixing lid of push rod, ram seat is pressed on institute
State in the groove on plunger case top, the size and shape of ram seat is identical with groove.
Further improve as the present invention, plunger is installed inside described plunger case, plunger base is pacified by bolt
It is contained on the base plate within described Hydraulic brake cylinder assembly, easy to maintenance.
As currently preferred, the top and bottom of described dirt-proof boot are separately fixed at described assembling fork and described enclosing cover
On, dirt-proof boot prevents the soil in the external world and dust from entering inside brake cylinder assembly.
As currently preferred, described enclosing cover is threaded connection with described outer tube, easy accessibility.
As currently preferred, the fixing lid of described push rod is fastened by fixing screws with described plunger case, push rod
The size of fixing lid is identical with the diameter of plunger case, and convenient installation and the head of push rod lower end can be had to enter groove, under push rod
The head at end is spherical.
Further improve as the present invention, the head of described push rod lower end and described plunger case fit tightly, push rod
The head of lower end is mutually surely closed with the groove shapes of ram seat and plunger case, and push rod and plunger centrage are in an axis.
Further improve as the present invention, described plunger is fixed by sealing member with described plunger case, sealing member by
The same part composition of multiple sizes, sealing member is symmetrical structure, plunger can be made to be connected with plunger case tightr, sealing effectiveness is more
Good.
As currently preferred, in the middle part of described plunger base, it is cased with dust ring, plunger base is provided with groove here
Place dust ring in groove, can effectively prevent dust from entering.
Further improve as the present invention, described plunger base bottom edge is provided with jump ring, and the two ends of jump ring are stuck in
In groove in outer tube, plunger base can be made to be connected with outer tube more firm.
Beneficial effects of the present invention are：Size limitation is not had to vehicle bridge by the structure changing Hydraulic brake cylinder assembly,
Brake force does not require sufficiently large heavy haul transport operating mode, and the vehicle bridge that brake chamber is braked can meet use demand, Brake Energy
Power is strong, and good dustproof effect, many advantages, such as easy for installation.
Brief description
Fig. 1 is a kind of sectional view of the Hydraulic brake cylinder assembly of present invention heavy duty vehicle bridge Hydraulic brake cylinder assembly；
Fig. 2 is a kind of operating diagram of the arrestment mechanism of present invention heavy duty vehicle bridge Hydraulic brake cylinder assembly.
In figure：1st, assembling fork；2nd, sell；3rd, dirt-proof boot；4th, push rod；5th, enclosing cover；6th, outer tube；7th, fixing screws；8th, push rod is solid
Fixed lid；9th, ram seat；10th, plunger case；11st, plunger；12nd, sealing member, 13, spring one；14th, spring two；15th, plunger base；
16th, dust ring；17th, jump ring；18th, wheel rim；19th, drum brake；20th, Hydraulic brake cylinder assembly；21st, braking fork always connects
Become；22nd, cam swing arm.
Specific embodiment
As shown in Figure 1-2, a kind of heavy duty vehicle bridge Hydraulic brake cylinder assembly described in the embodiment of the present invention, including：Liquid
The dynamic hydraulic cylinder assembly 20 of compacting is arranged in the middle of heavily loaded vehicle bridge；Described Hydraulic brake cylinder assembly 20 passes through braking fork connecting assembly 21
Be connected with two cam swing arms 22 inside vehicle bridge, described cam swing arm 22 directly with drum brake 19 phase within wheel rim 18
Even；Assembling fork 1 is arranged on the top of described Hydraulic brake cylinder assembly 20；Described assembling fork 1 and described braking fork connecting assembly
20 are fixedly connected by pin 2；Push rod 4 is arranged on described Hydraulic brake cylinder assembly 20 upper inside；Described push rod 4 and institute
State assembling fork 1 to connect by screw threads for fastening；Dirt-proof boot 3 is enclosed within the junction of described push rod 4 and described assembling fork 1；Enclosing cover 5 is with outward
Cylinder 6 is arranged on top and the bottom of described Hydraulic brake cylinder assembly 20 outer surface；Plunger case 10 is arranged on described hydraulic pressure system
Dynamic hydraulic cylinder assembly 20 inner lower；Push rod fixing device is arranged on described plunger case 10 top；Described plunger case 10 both sides
Step on one group of spring 1 and spring 2 14 are respectively installed.Described push rod fixing device includes push rod and fixes lid 8, ram seat
Inside described plunger case 10, plunger 11 is installed in 9 grooves being pressed on described plunger case 10 top, plunger base 15 is pacified
It is contained on the base plate within described Hydraulic brake cylinder assembly 20, the top and bottom of described dirt-proof boot 3 are separately fixed at described
On assembling fork 1 and described enclosing cover 5, described enclosing cover 5 is threaded connection with described outer tube 6, and described push rod is fixing to build 8 and described post
Plug cylinder cylinder 10 is fastened by fixing screws 7, and the head of described push rod 4 lower end and described plunger case 10 fit tightly, described
Plunger 11 and described plunger case 10 pass through sealing member 12 to be fixed, and is cased with dust ring 16, described post in the middle part of described plunger base 15
It is provided with jump ring 17 at plug base 15 bottom margin.
When specifically used：Assembling fork is connected with the braking fork connecting assembly of vehicle bridge, is fixed by pin.Push rod and installation
Fork is connected by screw threads for fastening, and dirt-proof boot prevents the soil in the external world and dust from entering inside brake cylinder assembly, enclosing cover and outer tube
It is connected by screw threads for fastening, the fixing lid of push rod is connected with plunger case fastening by fixing screws, push rod fixing lid compression push rod
Seat makes the head of push rod and plunger case fit tightly.Black box realize hydraulic oil seal between plunger case and plunger and
Outside dust-proof, spring one ensures in normal confined state together with spring two, has larger thrust between plunger barrel and plunger,
Plunger base ensures the installation of plunger and Hydraulic brake cylinder assembly, and the dust-proof of plunger base realized by dust ring, and jump ring realizes post
The positioning of plug base.
The push rod of Hydraulic brake cylinder assembly is connected with braking fork connecting assembly, and braking fork is connected and is connected with cam swing arm,
Cam swing arm is connected with the drum brake within wheel rim.
When the hydraulic oil no pressure in the plunger of Hydraulic brake cylinder assembly, push rod pulls cam swing arm by shoe brake
Open, vehicle bridge is in on-position, what now spring one and spring two applied to plunger case makes a concerted effort all to be converted to brake
Braking torque.
When the hydraulic oil in plunger has pressure, thrust and spring one and spring two that oil cylinder produces apply to plunger case
Make a concerted effort offset, so the braking torque of brake reduces, become big, the braking torque of brake with hydraulic fluid pressure in plunger
Diminish.
So the braking that the service brake of vehicle bridge is the drum brake of the Stress control vehicle bridge by external hydraulic power source is turned round
Square is realizing the service brake of vehicle.Vehicle can be controlled by adjusting the pressure of the external hydraulic power source of Hydraulic brake cylinder assembly
The size of brake power.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (4)
1. a kind of heavy duty vehicle bridge with Hydraulic brake cylinder assembly it is characterised in that include：
Hydraulic brake cylinder assembly (20) is arranged in the middle of heavily loaded vehicle bridge；
Described Hydraulic brake cylinder assembly (20) passes through two cam swing arms inside braking fork connecting assembly (21) and vehicle bridge
(22) it is connected, directly internal with wheel rim (18) drum brake (19) of described cam swing arm (22) is connected；
Assembling fork (1) is arranged on the top of described Hydraulic brake cylinder assembly (20)；
Described assembling fork (1) is fixedly connected by pin (2) with described braking fork connecting assembly (20)；
Push rod (4) is arranged on described Hydraulic brake cylinder assembly (20) upper inside；
Described push rod (4) is connected by screw threads for fastening with described assembling fork (1)；
Dirt-proof boot (3) is enclosed within the junction of described push rod (4) and described assembling fork (1)；
Enclosing cover (5) and outer tube (6) are arranged on top and the bottom of described Hydraulic brake cylinder assembly (20) outer surface；
Plunger case (10) is arranged on described Hydraulic brake cylinder assembly (20) inner lower；
Push rod fixing device is arranged on described plunger case (10) top；
One group of spring one (13) and spring two (14) are respectively provided with the step of described plunger case (10) both sides；
Described push rod fixing device includes the fixing lid (8) of push rod, and ram seat (9) is pressed on the recessed of described plunger case (10) top
In groove；
Inside described plunger case (10), plunger (11) is installed, plunger base (15) is arranged on described Hydraulic brake cylinder assembly
(20) on internal base plate；
The top and bottom of described dirt-proof boot (3) are separately fixed on described assembling fork (1) and described enclosing cover (5)；
The fixing lid (8) of described push rod is fastened by fixing screws (7) with described plunger case (10)；
It is fixing that described plunger (11) and described plunger case (10) pass through sealing member (12)；
It is provided with jump ring (17) at described plunger base (15) bottom margin；
When the hydraulic oil no pressure in the described plunger (11) of described Hydraulic brake cylinder assembly (20), described push rod (4) is drawn
Shoe brake is opened by dynamic described cam swing arm (22), and vehicle bridge is in on-position, now described spring one (13) and spring two
(14) braking torque being all converted to described drum brake (19) with joint efforts described plunger case (10) being applied；
When the hydraulic oil in described plunger (11) has pressure, thrust and described spring one (13) and spring two that oil cylinder produces
(14) counteracting of making a concerted effort described plunger case (10) being applied, so the braking torque of described drum brake (19) reduces, with
The interior hydraulic fluid pressure of described plunger (11) and become big, the braking torque of described drum brake (19) diminishes.
2. according to claim 1 heavy duty vehicle bridge with Hydraulic brake cylinder assembly it is characterised in that：Described enclosing cover (5) with
Described outer tube (6) is threaded connection.
3. according to claim 1 heavy duty vehicle bridge with Hydraulic brake cylinder assembly it is characterised in that：Under described push rod (4)
The head at end is fitted tightly with described plunger case (10).
4. according to claim 1 heavy duty vehicle bridge with Hydraulic brake cylinder assembly it is characterised in that：Described plunger base
(15) it is cased with dust ring (16) in the middle part of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185905.0A CN103935349B (en) | 2014-05-05 | 2014-05-05 | Hydraulic brake oil cylinder assembly for heavy-loaded vehicle bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185905.0A CN103935349B (en) | 2014-05-05 | 2014-05-05 | Hydraulic brake oil cylinder assembly for heavy-loaded vehicle bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103935349A CN103935349A (en) | 2014-07-23 |
| CN103935349B true CN103935349B (en) | 2017-02-15 |
Family
ID=51183313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410185905.0A Active CN103935349B (en) | 2014-05-05 | 2014-05-05 | Hydraulic brake oil cylinder assembly for heavy-loaded vehicle bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103935349B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3357183A (en) * | 1966-10-10 | 1967-12-12 | Bendix Corp | Master cylinder |
| US4510752A (en) * | 1981-07-10 | 1985-04-16 | The Bendix Corporation | Master cylinder |
| US4941323A (en) * | 1986-02-18 | 1990-07-17 | Automotive Products Plc | Hydraulic cylinder provided with a seal-less piston |
| CN101628574A (en) * | 2009-08-14 | 2010-01-20 | 颜志新 | Braking mechanism of automobile steering driving front axle |
| CN102765300A (en) * | 2011-05-06 | 2012-11-07 | 漳州昌源车桥有限公司 | Heavy rear axle for passenger coach |
| CN202481056U (en) * | 2012-02-23 | 2012-10-10 | 徐州远大特种车桥制造有限公司 | Air brake drum type braking axle of independent lifting support |
-
2014
- 2014-05-05 CN CN201410185905.0A patent/CN103935349B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103935349A (en) | 2014-07-23 |
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