CN202213575U - Hydraulic impact braking system with impact braking function for trailer - Google Patents
Hydraulic impact braking system with impact braking function for trailer Download PDFInfo
- Publication number
- CN202213575U CN202213575U CN 201120269388 CN201120269388U CN202213575U CN 202213575 U CN202213575 U CN 202213575U CN 201120269388 CN201120269388 CN 201120269388 CN 201120269388 U CN201120269388 U CN 201120269388U CN 202213575 U CN202213575 U CN 202213575U
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- brake
- braking
- steel pipe
- hydraulic
- trailer
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Abstract
The utility model relates to a hydraulic impact braking system with an impact braking function for a trailer, which is characterized in that: the braking system mainly comprises a hydraulic impact braking mechanism and a mechanical parking braking mechanism; the hydraulic impact braking mechanism mainly comprises a hydraulic master cylinder, a brake hose, a brake steel pipe, a hydraulic tee joint, a left rear brake steel pipe, a right rear brake steel pipe, a left brake and a right brake; the rear end of a traction connecting device is connected with the hydraulic master cylinder; the oil outlet of the hydraulic master cylinder is connected with the brake hose; the brake hose is connected with the brake steel pipe through a fixing base; the rear end of the brake steel pipe is in threaded connection with the hydraulic tee joint; the other two joints of the hydraulic tee joint are respectively connected with the left rear brake steel pipe and the right rear brake steel pipe; and the left rear brake steel pipe and the right rear brake steel pipe are respectively connected with braking wheel cylinders on the left brake and the right brake. The hydraulic impact braking system with the impact braking function for the trailer has the beneficial effects that: the hydraulic impact braking mechanism and the parking braking mechanism are independent of each other, the efficiency of hydraulic impact braking is higher, the mechanical parking braking is reliable, and thus, the reliability of the brake performance of the trailer is higher.
Description
Technical field
The utility model relates to a kind of trailer brake system, relates in particular to a kind of trailer fluid power impact braking system that in traveling process, has the bump braking function.
Background technology
What the brake mode of trailer in traveling process adopted mostly is mechanical braking form or compressed air brake form, and in the process of bump braking, it is on the low side that mechanical braking has brake efficiency, and have certain hysteresis quality, and the hysteresis quality of compressed air brake is even more serious.And impact braking function and parking braking function structure in the most mechanical type bump brake system are integral type, and impact braking system and emergency brake system are interfered each other, and as if a thrashing wherein, another system is also malfunctioning thereupon.Patent applicant's (application number: 200920314368.X) disclose a kind of trailer brake system; It is characterized in that: comprise driving inertia impact brake equipment, holding brake device and emergency brake device; Said driving impact type brake equipment mainly is made up of eye hitch, coupling hitch, hook arm, preceding S. A., front fork arm, preceding pivoted arm and steel wire tow line; Said trailer towing ring is fixed in the coupling hitch front end; The coupling hitch rear end is connected with the upper end of hook arm, and the lower end of hook arm and the front end of forks arm flexibly connect, and the rear end of forks arm is connected with preceding pivoted arm; The other end of preceding pivoted arm and steel wire tow line swing arm flexibly connect; Steel wire tow line is connected with brakig force distribution device front end through brake regulator A, and the rear end of brakig force distribution device connects left and right braking stay cord, and left and right braking stay cord connects left and right brake assembly respectively.Its structure is the transmission device that between eye hitch and brake pulling wire, is provided with Purely mechanical, and its transmission device is simple in structure, can be widely used in the various trailer brake systems.In the application process, the transmission device of Purely mechanical highlights above-mentioned shortcoming.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of above-mentioned technology; And provide a kind of simple in structure; The trailer fluid power impact braking system that reliability is high, have the bump braking function, brake system have and independently adopt fluid power to impact the service brake mechanism and the parking and braking mechanism that adopts mechanical braking of braking mutually.
The utility model is for realizing above-mentioned purpose; Adopt following technical scheme: a kind of trailer fluid power impact braking system with bump braking function; Comprise the coupling hitch that is connected with the trailer towing ring; It is characterized in that: brake system mainly impacts stop mechanism by fluid power and mechanical parking and braking mechanism constitutes; Said fluid power impacts stop mechanism and mainly is made up of hydraulic main cylinder, brake hose, braking steel pipe, hydraulic pressure threeway, left and right back braking steel pipe and left and right sides drg, and the rear end of said coupling hitch is connected with hydraulic main cylinder, and the hydraulic main cylinder oil outlet connects brake hose; Brake hose is connected with the braking steel pipe through permanent seat; The hydraulic pressure threeway that is threaded of braking steel pipe rear end, hydraulic pressure threeway two joints in addition connects left back braking steel pipe and right back braking steel pipe respectively, and left back braking steel pipe is connected the brake wheel cylinder on the drg of the left and right sides respectively with right back braking steel pipe.
Said hydraulic main cylinder mainly is made up of cylinder body, push rod, fixed connecting plate, screw rod and protection spring; Said cylinder body and fixed connecting plate are affixed; The parallel screw rod that is provided with in said fixed connecting plate both sides; Suit protection spring on the said screw rod, said push rod and inner chamber of cylinder block sliding block joint are set with dust protecting cap on the push rod.
Said mechanical parking and braking mechanism mainly is made up of brake-applying handle assembly, ratchet, brake rod, brake proportioning system, back braking stay cord; The centre of gration of said brake-applying handle assembly is provided with ratchet; And with the coaxial ratchet pin joint on permanent seat; Said ratchet and the ratchet engagement that is arranged on brake-applying handle assembly one end, brake-applying handle assembly rear end connects brake rod, and the rear end of brake rod is connected with brake proportioning system; The rear end of brake proportioning system is connected with right back braking stay cord with left back braking stay cord respectively, and left back braking stay cord is connected left and right brake assembly respectively with right back braking stay cord.
The lower end of said brake-applying handle assembly is mounted with the emergency brake rope.
Be connected with power-assisted gas spring between said brake-applying handle assembly and the ratchet.
Beneficial effect: the fluid power that the utility model is provided with impacts stop mechanism and parking and braking mechanism, and both are separate, and it is higher that fluid power impacts brake efficiency, and mechanical braking during standstill is reliable, so the trailer braking protection valve performance reliability is higher; The braking during standstill assembly is provided with the transmission device of Purely mechanical, and its transmission device is simple in structure, technical maturity, steady quality reliability high.
Description of drawings
Fig. 1 is the utility model trailer hydraulic brake system structural representation;
Fig. 2 is the A place enlarged drawing of Fig. 1;
Fig. 3 is the master brake cylinder scheme drawing;
Fig. 4 is the birds-eye view of Fig. 3.
Among the figure: 1. eye hitch, 2. coupling hitch, 3. master brake cylinder, 3-1. cylinder body, 3-2. push rod, 3-3. dust protecting cap; 3-4. fixed connecting plate, the 3-5. screw rod, 3-6. protects spring, 3-7. nut, 3-8. oil outlet, 4. brake hose; 5. permanent seat, 6. braking steel pipe, 7. hydraulic pressure threeway, 7-1. bolt of rear end plate, 8, back braking steel pipe; The left and right back braking of 8-1,8-2 steel pipe, 9. drg, 10. emergency brake rope, 11. ratchets, 12. brake-applying handle assemblies; 13. brake rod, 14. brake proportioning systems, 15. back braking stay cords, 16. rotating shafts, 17. power-assisted gas springs.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is carried out detailed description.
As shown in the figure; A kind of trailer fluid power impact braking system with bump braking function; Comprise the coupling hitch 2 that is connected with trailer towing ring 1; Brake system mainly impacts stop mechanism by fluid power and mechanical parking and braking mechanism constitutes, and said fluid power impacts stop mechanism and mainly is made up of hydraulic main cylinder 3, brake hose 4, braking steel pipe 6, hydraulic pressure threeway 7, left and right back braking steel pipe 8-1,8-2 and left and right sides drg 9, and the rear end of said coupling hitch is connected with hydraulic main cylinder; Hydraulic main cylinder oil outlet 3-8 connects brake hose 4; Brake hose is connected with the braking steel pipe through permanent seat 5, brakes the hydraulic pressure threeway that is threaded of steel pipe rear end, and hydraulic pressure threeway 7 is fixed on the trailer through bolt of rear end plate 7-1.The hydraulic pressure threeway also is connected with back braking steel pipe 8, and hydraulic pressure threeway two joints in addition connects left back braking steel pipe and right back braking steel pipe respectively, and left back braking steel pipe is connected the brake wheel cylinder on the left and right sides drg 9 respectively with right back braking steel pipe.Said hydraulic main cylinder mainly is made up of cylinder body 3-1, push rod 3-2, fixed connecting plate 3-4, screw rod 3-5 and protection spring 3-6; Said cylinder body and fixed connecting plate are affixed; The parallel screw rod that is provided with in said fixed connecting plate both sides, suit protection spring on the said screw rod, and fastening and adjustment through nut 3-7.Said push rod and inner chamber of cylinder block sliding block joint are set with dust protecting cap 3-3 on the push rod.Said mechanical parking and braking mechanism mainly is made up of brake-applying handle assembly 12, ratchet 11, brake rod 13, brake proportioning system 14, back braking stay cord 15; The centre of gration of said brake-applying handle assembly is provided with ratchet; And with same rotating shaft 16 pin joints of ratchet on permanent seat; Said ratchet and the ratchet engagement that is arranged on brake-applying handle assembly one end, brake-applying handle assembly rear end connects brake rod, and the rear end of brake rod is connected with brake proportioning system; The rear end of brake proportioning system is connected with right back braking stay cord with left back braking stay cord respectively, and left back braking stay cord is connected left and right brake assembly respectively with right back braking stay cord.The lower end of said brake-applying handle assembly is mounted with emergency brake rope 10, emergency brake be when hauling engine with trailer because unexpected the unhook in time to the locomotive brake processing, prevents that accident from appearring in trailer.Be connected with power-assisted gas spring 17 between said brake-applying handle assembly and the ratchet.The centre of gration of brake-applying handle assembly 12 is installed in the rotating shaft 15, and said ratchet 11 is a center shaft with rotating shaft 15, is fixed on the trailer.Ratchet 11 and the ratchet engagement that is arranged on brake-applying handle one end, gas spring upper end, location is fixed with hand braking handle, and gas spring lower end, location is connected with fork pin on the ratchet.The rear end of brake-applying handle connects brake rod 13, and the rear end of brake rod connects brake proportioning system, and the rear end of brake proportioning system connects left back stay cord and right back stay cord, and left back stay cord is connected left and right brake assembly respectively with right back stay cord.
The service brake process is following:
In tractor truck and trailer formed automobile train traveling process; Two vehicle speeds are synchronous, and when tractor truck braked, speed reduced; And trailer is because inertia; Momentary velocity remains unchanged, and causes tractor truck hauling hook and trailer towing environment-development to give birth to bump, causes the tractor truck hook to promote to move behind the trailer towing hoop.And then the push rod 3-2 of bump hydraulic main cylinder; Push rod converts impact hydraulic coupling to and is delivered to hydraulic pressure three Tonglis through brake hose 4 and braking steel pipe 5; The hydraulic pressure threeway is assigned to hydraulic coupling in right back braking steel pipe and the left back braking steel pipe, and hydraulic coupling promotes the piston of wheel cylinder on the drg, makes the cylinder inner face generation contact friction of the outside face that is fixed on the brake shoe assembly upper friction plate and brake wheel; Produce friction moment, trailer is gone be braked.
The braking during standstill process is following:
When the hauling engine stop motion; Or trailer uses when breaking away from hauling engine, pulled backwards brake-applying handle assembly 12, and the rotation of staying hand braking handle assembly drives brake rod 13 reaches; The reach of brake rod 13 drives brake proportioning system 14 reaches; The reach of brake proportioning system 14 drives 15 reaches of back braking stay cord, starts the braking during standstill pull bar in the brake assembly 9, reaches the braking purpose.
The above only is the preferred embodiment of the utility model, is not the structure of the utility model is done any pro forma restriction.Every technical spirit according to the utility model is to any simple modification, equivalent variations and modification that above embodiment did, all still belongs in the scope of technical scheme of the utility model.
Claims (5)
1. one kind has the trailer fluid power impact braking system that clashes into braking function; Comprise the coupling hitch that is connected with the trailer towing ring; It is characterized in that: brake system mainly impacts stop mechanism by fluid power and mechanical parking and braking mechanism constitutes; Said fluid power impacts stop mechanism and mainly is made up of hydraulic main cylinder, brake hose, braking steel pipe, hydraulic pressure threeway, left and right back braking steel pipe and left and right sides drg, and the rear end of said coupling hitch is connected with hydraulic main cylinder, and the hydraulic main cylinder oil outlet connects brake hose; Brake hose is connected with the braking steel pipe through permanent seat; The hydraulic pressure threeway that is threaded of braking steel pipe rear end, hydraulic pressure threeway two joints in addition connects left back braking steel pipe and right back braking steel pipe respectively, and left back braking steel pipe is connected the brake wheel cylinder on the drg of the left and right sides respectively with right back braking steel pipe.
2. the trailer fluid power impact braking system with bump braking function according to claim 1; It is characterized in that: said hydraulic main cylinder mainly is made up of cylinder body, push rod, fixed connecting plate, screw rod and protection spring; Said cylinder body and fixed connecting plate are affixed, the parallel screw rod that is provided with in said fixed connecting plate both sides, suit protection spring on the said screw rod; Said push rod and inner chamber of cylinder block sliding block joint are set with dust protecting cap on the push rod.
3. the trailer fluid power impact braking system with bump braking function according to claim 1; It is characterized in that: said mechanical parking and braking mechanism mainly is made up of brake-applying handle assembly, ratchet, brake rod, brake proportioning system, back braking stay cord; The centre of gration of said brake-applying handle assembly is provided with ratchet; And with the coaxial ratchet pin joint on permanent seat; Said ratchet and the ratchet engagement that is arranged on brake-applying handle assembly one end, brake-applying handle assembly rear end connects brake rod, and the rear end of brake rod is connected with brake proportioning system; The rear end of brake proportioning system is connected with right back braking stay cord with left back braking stay cord respectively, and left back braking stay cord is connected left and right brake assembly respectively with right back braking stay cord.
4. according to claim 3 or 4 described trailer fluid power impact braking systems with bump braking function, it is characterized in that: the lower end of said brake-applying handle assembly is mounted with the emergency brake rope.
5. the trailer fluid power impact braking system with bump braking function according to claim 3 is characterized in that: be connected with power-assisted gas spring between said brake-applying handle assembly and the ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120269388 CN202213575U (en) | 2011-07-27 | 2011-07-27 | Hydraulic impact braking system with impact braking function for trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120269388 CN202213575U (en) | 2011-07-27 | 2011-07-27 | Hydraulic impact braking system with impact braking function for trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202213575U true CN202213575U (en) | 2012-05-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120269388 Expired - Lifetime CN202213575U (en) | 2011-07-27 | 2011-07-27 | Hydraulic impact braking system with impact braking function for trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202213575U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644214A (en) * | 2013-12-26 | 2014-03-19 | 福建华泰电力实业有限公司 | Brake structure of trailer swing rod |
| CN108583549A (en) * | 2018-01-24 | 2018-09-28 | 洛阳市黄河软轴控制器股份有限公司 | The hand braking control mechanism of automobile oil pressure |
-
2011
- 2011-07-27 CN CN 201120269388 patent/CN202213575U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644214A (en) * | 2013-12-26 | 2014-03-19 | 福建华泰电力实业有限公司 | Brake structure of trailer swing rod |
| CN108583549A (en) * | 2018-01-24 | 2018-09-28 | 洛阳市黄河软轴控制器股份有限公司 | The hand braking control mechanism of automobile oil pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |
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| CX01 | Expiry of patent term |