CN205423615U - Mining dump truck wet brake - Google Patents
Mining dump truck wet brake Download PDFInfo
- Publication number
- CN205423615U CN205423615U CN201521037638.9U CN201521037638U CN205423615U CN 205423615 U CN205423615 U CN 205423615U CN 201521037638 U CN201521037638 U CN 201521037638U CN 205423615 U CN205423615 U CN 205423615U
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- piston
- brake
- parking
- spring
- seat cover
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- 238000005065 mining Methods 0.000 title claims abstract description 24
- 239000003921 oil Substances 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 25
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 description 12
- 230000000171 quenching effect Effects 0.000 description 11
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a stopper system especially relates to a mining dump truck hydraulic control's wet brake. The utility model discloses establish a set drive wheel in the brake disc casing, establish and be equipped with spin friction piece subassembly on set drive wheel, its one end and service brake piston contact, it is fixed that the other end and parking braking piston contact, service brake piston pass through piston flap assembly, is equipped with on the piston flap assembly to be used for keeping round pin and reset spring through -hole for the service brake piston resets, the parking braking piston is fixed and is covered at the spring holder, and the parking braking piston is equipped with parking oiling mouth and driving oiling mouth respectively, and parking oiling mouth and driving oiling oral siphon way are connected with hydraulic tank. The utility model discloses a hydraulic system control, its compact structure, brake performance is reliable and stable. Have service brake, hand braking, holding brake, parking braking, emergency braking, the braking of dry moist road surface and hydraulic speed reduction function simultaneously.
Description
Technical Field
The utility model relates to a brake system especially relates to a mining dump truck hydraulic control's wet brake.
Background
The automobile brake is one of important parts forming an automobile, the braking performance of the automobile brake is directly related to the safety performance of the automobile, and particularly for a mining dump truck in large-scale open-pit mining industry, the automobile brake has the advantages of severe operating environment, uneven road condition, large abrasion loss of a mechanical caliper disc type braking device and short service life; meanwhile, the load of the mining dump truck is heavy, and if the braking effect of the braking system is not good, the transportation speed of the truck body can be greatly influenced, and even safety accidents can be caused.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a mining dump truck wet brake, this mining dump truck wet brake is compact structure not only, has functions such as service brake, hand brake, parking brake, emergency braking, dry moist road surface braking and hydraulic deceleration moreover, is the key of guarantee whole car loading total quality safety.
In order to solve the above problem, the technical scheme of the utility model is as follows:
a wet brake of a mining dump truck is characterized in that a disc driving wheel is arranged in a brake disc shell, a rotary friction plate assembly is arranged on the disc driving wheel, one end of the rotary friction plate assembly is in contact with a service brake piston, the other end of the rotary friction plate assembly is in contact with a parking brake piston, the service brake piston is fixed through a piston seat cover assembly, and a through hole for a retaining pin and a reset spring is arranged on the piston seat cover assembly and used for resetting the service brake piston; the parking braking piston is fixed on the spring seat cover, the parking braking piston is respectively provided with a parking oil filling port and a driving oil filling port, and the parking oil filling port and the driving oil filling port are connected with a hydraulic oil tank through pipelines.
Further: and a parking oil filling port and a travelling oil filling port are respectively arranged on the piston seat cover assembly.
Further: an oil filling channel is arranged on the wall of the disc brake shell and is communicated with a parking oil filling port, and hydraulic oil in the parking oil filling port enters a cavity between the brake disc shell and the parking brake piston through the oil filling channel; the oil way of the service oil injection port is communicated with the upper end surface of the annular boss of the service brake piston.
Further: the piston seat cover assembly is spliced with the service brake piston in a sealing way.
The inner circumference of the spring seat cover is hermetically connected with the disc driving wheel through a plane sealing assembly.
Further: two sealing rings are arranged on the outer circumference of the parking brake piston.
Further: the coaxial equal altitude setting of spring in the reset spring group includes: the spring is sleeved on the spring.
Compared with the prior art, the utility model discloses a technical scheme's advantage has:
1. the wet brake of the mining dump truck is controlled by a hydraulic system, and has a compact structure and stable and reliable braking performance.
2. The elements adopted by the utility model all belong to mature products, and the manufacture is simple.
3. The utility model discloses service brake, hand brake, parking brake, emergency braking, dry moist road surface braking and hydraulic deceleration function have simultaneously.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a sectional view A-A of the assembly structure of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a service brake piston fixing structure according to an embodiment of the present invention;
fig. 3 is a schematic structural view (front view) of the assembly according to the embodiment of the present invention;
FIG. 4 is a sectional view taken along line B-B of the schematic structural view of the assembly according to the embodiment of the present invention;
FIG. 5 is a cross-sectional view of the assembly according to an embodiment of the present invention;
fig. 6 is a D-D sectional view in the schematic structural diagram of the assembly according to the embodiment of the present invention.
Wherein,
1. inner sealing seat 16, third quenching washer 31, service brake piston
2. First O-ring 17, fourth O-ring 32, bolt 46, stud
3. Plane sealing assembly 18, first positioning pin 33, fourth bolt 47, first screw plug
4. Second O-ring 19, second positioning pin 34, stopper plate 48, seventh O-ring
5. Drive hub 20, first spring 35, retaining pin 49, second plug screw
6. First quenching washer 21, second spring 36, return spring 50, first exhaust valve
7. First bolt 22, first seal ring 37, fifth O-ring 51, sixth hardened washer
8. Third O-ring 23, parking brake piston 38, first D-ring 52, nut
9. Second bolt 24, second seal ring 39, second D-shaped seal ring 53, eighth O-shaped ring
10. Seal seat cover 25, brake disc housing 40, sixth O-ring 54, second exhaust valve
11. Planar seal assembly 26, third dowel pin 41, piston seat cover assembly 55, seventh hardened washer
12. Third bolt 27, disk drive wheel 42, fourth quench washer 56, locking wire
13. Second quenching washer 28, pressure plate assembly 43, fifth bolt 57, first spacer ring
14. Spring seat cover 29, friction plate 44, fifth quenching washer 58, second spacer ring
15. Inner hexagonal bolt 30, sliding lining 45 and inner hexagonal bolt
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The embodiments of the present invention will be explained in detail below with reference to the drawings.
As shown in fig. 1 to 6, a mineWith the wet brake of the dump truck, the outer circumference of the disk driving wheel 27 is provided with a rotary friction plate component, and both sides of the rotary friction plate component are provided with a pressing plate assembly 28; a brake disc shell 25 is arranged on the outer circumference of the rotary friction disc assembly, and an inner hole annular boss of the brake disc shell 25 is provided with two seals, namely a second sealing ring 24 and a second spacer ring 58; a service brake piston 31 with an annular boss is arranged at one end of the rotary friction plate assembly, an annular groove is arranged on the inner end face of the piston seat cover assembly 41, and the annular boss of the service brake piston 31 is hermetically inserted in the piston seat cover assembly 41 through a first D-shaped sealing ring 38 and a second D-shaped sealing ring 39; a retaining pin 35 is arranged on the piston seat cover assembly 41, one end of the retaining pin 35 is connected with a return spring 36 through a stop plate 34, the other end of the retaining pin 35 is connected with the service brake piston 31 through a bolt 32, and the stop plate 34 is connected with the service brake piston 31 through a bolt 33; meanwhile, the piston seat cover assembly 41 and the brake disc shell 25 are positioned through the third positioning pin 26, and the piston seat cover assembly 41 and the brake disc shell 25 are fixedly connected through the fourth quenching washer 42, the fifth bolt 43, the fifth quenching washer 44 and the inner hexagonal bolt 45 Is connected withThe matching plane of the piston seat cover assembly 41 and the brake disc shell 25 is sealed through a fifth O-shaped ring 37 and a sixth O-shaped ring 40; a parking brake piston 23 is arranged on the other end face of the rotary friction plate assembly, the parking brake piston 23 is connected with the spring seat cover 14 in a positioning mode through a second positioning pin 19, and an annular boss on the outer circumference of the parking brake piston 23 is provided with two seals, namely a first sealing ring 22 and a first spacer ring 57; a return spring group is arranged in a plurality of blind hole grooves in which the parking brake piston 23 is correspondingly buckled with the spring seat cover 14, and comprises a first spring 20 and a second spring 21; a spring seat cover 14 is arranged on the outer side of the parking brake piston 23, the inner circumference of the spring seat cover 14 is connected with the disc driving wheel 27 in a sealing mode through a plane sealing assembly 11, the matching part of the spring seat cover 14 and the brake disc shell 25 is connected in a sealing mode through a fourth O-shaped ring 17, meanwhile, the spring seat cover 14 and the brake disc shell 25 are positioned through a first positioning pin 18, and the spring seat cover 14 and the brake disc shell 25 are connected in a fastening mode through a second quenching gasket 13, a third quenching gasket 16, a third bolt 12 and an inner hexagonal bolt 15; a parking oil filling port and a traveling oil filling port are respectively arranged on the piston seat cover assembly 41An oil way communicated with the parking oil filling port is arranged on the disc brake shell 25, and oil pressure in the parking oil filling port enters an annular cavity formed by two seals on the brake disc shell 25 and two seals on the parking brake piston 23 through the communicated oil way; the oil path of the service oil injection port is communicated with the upper end surface of the annular boss of the service brake piston 31.
The return spring group is positioned in a corresponding groove cavity after the parking brake piston 23 and the spring seat cover 14 are buckled, and the return spring group is coaxially arranged in equal height by a spring with large spring line diameter, outer diameter and pitch diameter and a spring with small spring line diameter, outer diameter and pitch diameter.
The parking oil filling port and the driving oil filling port arranged on the piston seat cover assembly 41 are provided with a first discharge valve 50 and a second discharge valve 54, meanwhile, the piston seat cover assembly 41 is fixedly connected with a rear axle flange plate through a stud bolt 46, a sixth quenching gasket 51 and a nut 52, and the matching surface of the piston seat cover assembly 41 and the rear axle flange plate is sealed through an eighth O-shaped ring 53;
the ends of the plurality of holes of the piston seat cover assembly 41, where the retaining pins 35 are placed, are sealed by first screw plugs 47; meanwhile, the oil drain hole end of the piston seat cover assembly 41 is sealed and covered by a seventh O-shaped ring 48 and a second screw plug 48;
the inner circumference of the disc driving wheel 27 is connected with an inner sealing seat 1 through a plane sealing component 3, the inner sealing seat 1 is in sealing fit connection with a rear axle half shaft sleeve through a first O-shaped ring 2, three threaded holes marked with 'A' are formed in the inner sealing seat 1 and used for mounting puller bolts, and the plane sealing component 11, which is positioned on the outer circumference of the disc driving wheel 27 and is in sealing connection with the spring seat cover 14, is in limit connection with a sealing seat cover 10; the seal seat cover 10 is tightly connected with the disc driving wheel 27 through a seventh quenching washer 55, a second bolt 9 and a locking steel wire 56;
The outer circle of the inner sealing seat 1 is provided with a driving hub 5, the driving hub 5 is connected with a disk driving wheel 27 through an outer circle spline, and meanwhile, the outer circle surface of a third O-shaped ring 8 is arranged; the matching end face of the driving hub 5 and the rear wheel is sealed through a second O-shaped ring 4, and the driving hub 5 is fixedly connected with the rear wheel through a first quenching washer 6 and a first bolt 7;
the rotary friction plate assembly includes a friction plate 29 and a slip liner 30;
brief description of the embodiments of the present invention
A service brake:
the service brakes are of a "positive" configuration, i.e. pressure is required to maintain brake engagement.
The service brake uses the hydraulic force to slow down or stop the rotation of the driving wheel. When the foot brake pedal in the cab is depressed or the retarder control lever on the center console is operated and the retarder selection switch is pressed to the disc brake position, hydraulic fluid will be delivered to the "D" interface on the rear disc brake, see fig. 3 and 5. Hydraulic oil entering the "D" interface pushes the service brake piston 31 against the brake disc assembly consisting of the pressure plate assembly 28, the rotating friction plates 29 and the sliding linings 30. The friction plates are sandwiched between the slip linings 30 and are driven by the wheel hub through the drive hub 5 and the disk drive wheel 27. The compressive force applied to the brake disc assembly to slow or stop the rotation of the drive wheel is directly dependent on the degree to which the foot brake valve is stepped.
When the service foot brake valve or retarder control lever is released, the pressure on the service brake piston 31 is removed and the force of the brake return spring 36 against the head of the retaining pin 35 causes the retaining pin to pull the piston 31 back into position, thereby releasing the hold down on the brake disc assembly.
Parking brake:
the parking brake is of a "reverse" construction, i.e. requires the use of pressure to keep it disengaged.
The brake is operated by a park/emergency brake control button mounted on the right dashboard. It is applied by spring force and released by hydraulic pressure. The control button is pulled out and hydraulic oil enters the "F" port, see fig. 3 and 5, and flows into the oil channel in front of the parking brake piston 23 through the guide channel in the brake disc housing 25. At this time, the hydraulic oil will push the piston 23 to overcome the tension of the first spring 20 and the second spring 21, so that the pressure on the pressure plate assembly 28 is released, thereby keeping the brake disc assembly released. If the control button is pushed in, the oil pressure at the "F" interface and pressing the parking brake piston 23 is released. The tension of the first and second springs 20, 21 is restored and the piston 23 is pushed against the brake plate assembly 28 and the set of friction plates 29 and slip linings 30. At this time, the rotating friction plate sandwiched between the sliding linings is pressed, so that the wheel is braked from dynamic to static.
In summary, the parking brake is applied as long as there is no oil pressure at the "F" interface, whereas the parking brake will be released.
The embodiment of the utility model provides an in still include a mining dump truck, be equipped with such a mining dump truck wet brake as above. Because the wet brake for the mining dump truck has the technical effects, the mining dump truck with the wet brake structure for the mining dump truck also has the corresponding technical effects, and the specific implementation process of the wet brake for the mining dump truck is similar to that of the embodiment and is not repeated.
The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (7)
1. The wet brake for the mining dump truck is characterized in that: a disc driving wheel (27) is arranged in the brake disc shell (25), a rotary friction disc assembly is arranged on the disc driving wheel (27), one end of the rotary friction disc assembly is in contact with a service braking piston (31), the other end of the rotary friction disc assembly is in contact with a parking braking piston (23), the service braking piston (31) is fixed through a piston seat cover assembly (41), and a through hole for a retaining pin (35) and a return spring (36) is formed in the piston seat cover assembly (41) and used for returning the service braking piston (31); the parking brake piston (23) is fixed on the spring seat cover (14), and mounting holes for correspondingly arranging the reset spring groups are uniformly distributed on the circumference of the parking brake piston (23) and the spring seat cover (14); and a parking oil filling port and a driving oil filling port are respectively arranged on the piston seat cover assembly (41), and the parking oil filling port and the driving oil filling port are connected with a hydraulic oil tank through pipelines.
2. The wet brake of the mining dump truck according to claim 1, characterized in that: a parking oil filling port and a traveling oil filling port are respectively arranged on the piston seat cover assembly (41).
3. The wet brake of the mining dump truck according to claim 1, characterized in that: an oil filling channel is arranged on the wall of the disc brake shell (25), the oil filling channel is communicated with a parking oil filling port, and hydraulic oil in the parking oil filling port enters a cavity between the brake disc shell (25) and the parking brake piston (23) through the oil filling channel; the oil path of the service oil injection port is communicated with the upper end surface of the annular boss of the service brake piston (31).
4. The wet brake of the mining dump truck according to claim 1, characterized in that: the piston seat cover assembly (41) is connected with the service brake piston (31) in a sealing and inserting mode.
5. The wet brake of the mining dump truck according to claim 1, characterized in that: the inner circumference of the spring seat cover (14) is connected with the disc driving wheel (27) in a sealing mode through a plane sealing assembly (11).
6. The wet brake of the mining dump truck according to claim 1, characterized in that: two sealing rings are arranged on the outer circumference of the parking brake piston (23).
7. The wet brake of the mining dump truck according to claim 1, characterized in that: the coaxial equal altitude setting of spring in the reset spring group includes: the spring comprises a first spring (20) and a second spring (21), wherein the first spring (20) is sleeved on the second spring (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037638.9U CN205423615U (en) | 2015-12-14 | 2015-12-14 | Mining dump truck wet brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037638.9U CN205423615U (en) | 2015-12-14 | 2015-12-14 | Mining dump truck wet brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423615U true CN205423615U (en) | 2016-08-03 |
Family
ID=56516092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521037638.9U Active CN205423615U (en) | 2015-12-14 | 2015-12-14 | Mining dump truck wet brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423615U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443613A (en) * | 2015-12-14 | 2016-03-30 | 内蒙古北方重型汽车股份有限公司 | Mining dump truck wet brake |
| CN106240428A (en) * | 2016-08-18 | 2016-12-21 | 陕西同力重工股份有限公司 | Underground dumper |
| CN110469599A (en) * | 2019-08-15 | 2019-11-19 | 襄阳彼勒液压机械有限公司 | A kind of quarry tipper wet brake |
-
2015
- 2015-12-14 CN CN201521037638.9U patent/CN205423615U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443613A (en) * | 2015-12-14 | 2016-03-30 | 内蒙古北方重型汽车股份有限公司 | Mining dump truck wet brake |
| CN106240428A (en) * | 2016-08-18 | 2016-12-21 | 陕西同力重工股份有限公司 | Underground dumper |
| CN106240428B (en) * | 2016-08-18 | 2019-03-12 | 陕西同力重工股份有限公司 | Underground dumper |
| CN110469599A (en) * | 2019-08-15 | 2019-11-19 | 襄阳彼勒液压机械有限公司 | A kind of quarry tipper wet brake |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |