CN102774360B - Coal mine front axle steering knuckle integrating wet brake - Google Patents
Coal mine front axle steering knuckle integrating wet brake Download PDFInfo
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- CN102774360B CN102774360B CN201210292605.3A CN201210292605A CN102774360B CN 102774360 B CN102774360 B CN 102774360B CN 201210292605 A CN201210292605 A CN 201210292605A CN 102774360 B CN102774360 B CN 102774360B
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- 239000003245 coal Substances 0.000 title claims abstract description 16
- 230000003068 static effect Effects 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 4
- 238000013022 venting Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 27
- 238000007789 sealing Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a coal mine front axle steering knuckle integrating a wet brake. The coal mine front axle steering knuckle comprises a front axle welding component and a steering knuckle, wherein the front axle welding component is connected with a notch wall of the steering knuckle through a main pin; a front hub is sleeved at the front end of the steering knuckle; the coal mine front axle steering knuckle is characterized in that an annular spring return type wet brake is arranged in the middle of the steering knuckle, and the bottom wall is fixed with the outer wall of the steering knuckle; the front hub extends in from a through hole in the middle of a front cover of the annular spring return type wet brake; and the axial teeth in the middle of the front hub are meshed with the inner teeth of an annular dynamic friction piece of the annular spring return type wet brake. Since the wet brake has an explosion-proof function, the front axle steering knuckle does not need an additional explosion-proof device, and is safe to use and convenient to mount; and since the wet brake is provided with only one annular return spring, the cylindrical shell of the wet brake is sealed more tightly, and the explosion-proof performance of the wet brake is further improved.
Description
Technical field
The present invention relates to the improvement of a kind of coal mine car front axle steering knuckle, the specifically a kind of coal mine that integrates wet braking car front axle steering knuckle that is applicable to harsh environment under mine.
Background technology
Due to the environment under coal mine, not only steam is large, but also has a large amount of coal dusts, contains even gas, and therefore device therefor must have measures for the prevention of explosion.Under coal mine, the back axle of transport trolley used, shovel car is due to simple in structure, so easily set up the oil-immersed multi-disk brake being fixed on back axle.But for propons, because its structure comprises propons weld assembly, spindle arm, steering cylinder, outstanding cylinder, tierod, longitudinal tie, and by longitudinal tie, tierod and outstanding cylinder composition not only separate, but also the multiple connecting rod mechanism that conditions each other, thereby make front axle assy can realize all around, upper and lower and compound action with respect to vehicle frame, so it is more difficult that oil-immersed multi-disk brake is installed on propons.The oil-immersed multi-disk brake of installing at present, comprise the closed cavity that pivot shaft and braking housing are combined into, annular piston is arranged in braking housing, annular movable friction plate is inlaid on spline housing, annular static friction sheet is arranged on the wall in brake casing, coil spring around the outside of annular piston equidistant be provided with multiple, and be installed with a guiding screw pole at each helical spring center, the inner side of annular movable friction plate is provided with annular platen, the inner of annular piston is pressed on annular platen, outer end at annular piston is provided with annular oil cavity, annular oil cavity is connected with high pressure oil nozzle.In the time that driver uses foot-operated lower high pressure throttle, oil pressure promotes annular piston and axially moves, and annular movable friction plate and annular static friction sheet are compressed, formation friction drag distance, thus realize braking.In the time that driver unclamps high pressure throttle, hydraulic oil oil return, compression coil spring resets and makes annular piston return, and annular movable friction plate and annular static friction sheet depart from wipe contact, and friction moment disappears, and braking is removed.The beneficial effect of this oil-immersed multi-disk brake is: carry out due to whole brake equipment is in the environment of a sealing, not affected by extraneous harsh environment, adopt lubricating oil cooling, good heat dissipation effect, has anti-explosion safety performance.But complex structure, as coil spring establish too many, caused multiple mounting holes, increased sealing arrangement, meanwhile, due to the difference of helical spring performance, also can cause annular piston bias voltage, and then affect deceleration and stopping performance; In addition, be also difficult to be fixed as one with propons, while installation on propons, waste time and energy.Through retrieval, have not yet to see the report of the coal mine that the integrates wet braking car front axle steering knuckle of being convenient to installation, good seal performance, be fixed as one with front axle steering knuckle.
Summary of the invention
The object of the present invention is to provide a kind of oil-immersed multi-disk brake to be directly integrated with the production of car front axle steering knuckle, make it easy to install, and oil-immersed multi-disk brake designs simplification, the better coal mine that the integrates wet braking car front axle steering knuckle of sealing property.
In order to reach above object, the technical solution adopted in the present invention is: this this integrate the coal mine car front axle steering knuckle of wet braking, comprise propons weld assembly and steering swivel, propons weld assembly is connected with the recess wall of steering swivel by stub, and the end at stub is provided with axle sleeve, front wheel hub on steering swivel front end sleeve, and be provided with annular brace bearing between front wheel hub inwall and steering swivel outer wall, it is characterized in that: be provided with ring-spring homing position type oil-immersed multi-disk brake at the middle part of steering swivel, the diapire of cylindrical case and the outer wall of steering swivel of ring-spring homing position type oil-immersed multi-disk brake are fixed as one, on the diapire of cylindrical case, be provided with high pressure oil nozzle and venting mouth stuffed, front wheel hub stretches into from the middle through-hole of the protecgulum of ring-spring homing position type oil-immersed multi-disk brake, is provided with axial tooth at the middle part of front wheel hub, and the internal tooth of annular movable friction plate and the axial tooth of front wheel hub of ring-spring homing position type oil-immersed multi-disk brake engage.
The present invention also implements by following measure: described ring-spring homing position type oil-immersed multi-disk brake, comprise with front axle steering knuckle be fixed as one, cylindrical case, protecgulum, annular pressing plate, annular movable friction plate, annular static friction sheet, annular piston, piston inner ring sleeve, annular retracing spring and the annular high-voltage oil cavity of the ring-spring homing position type oil-immersed multi-disk brake of opening laterally, the external tooth of annular static friction sheet engages with axial teeth groove in the cylindrical case opening's edge of ring-spring homing position type oil-immersed multi-disk brake, the periphery of protecgulum is fixed on by bolt and seal ring on the mouth of cylindrical case of ring-spring homing position type oil-immersed multi-disk brake, be provided with piston inner ring sleeve in the inner side of annular piston, piston inner ring sleeve is enclosed within the inner of front wheel hub, annular piston on sheathed in the outside of piston inner ring sleeve, on the inwall of cylindrical case, fix the piston exterior ring cap that section is " L " shape by internal fixation screw, one end seat of annular retracing spring is on the diapire of piston exterior ring cap of " L " shape at section, the other end seat of annular retracing spring turns up on plug edge annular piston bottom, in the base end wall of annular piston between the inside bottom wall of cylindrical case being annular high-voltage oil cavity, annular high-voltage oil cavity is communicated with high pressure oil nozzle, on the prosopyle edge of annular piston, connect annular pressing plate, when high brake pressure oil is in high pressure oil nozzle enters annular high-voltage oil cavity, just the annular pressing plate that promotes annular piston and connect as one outwards moves, annular movable friction plate and annular static friction sheet are compressed mutually, simultaneously annular retracing spring compression, annular movable friction plate rotates relative to annular static friction sheet, its friction force produces lock torque, make front wheel brake, when after high brake pressure oil pressure release oil return, annular retracing spring stretches, and annular piston and the annular pressing plate connecting as one are pulled back, and annular movable friction plate is separated with annular static friction sheet, lose friction moment.
The anchor ring middle part of described annular pressing plate is provided with the protruding ring being integrated with annular pressing plate, and protruding ring snaps in the interior interference of annular slot of annular piston end face and fixes; On the inside and outside wall of described annular piston and the plug edge of turning up, be equipped with seal ring card entry slot, in seal ring card entry slot, snap in seal ring; Described annular retracing spring end is plane, and to keep the steady push-and-pull of annular piston, the interior diameter of annular retracing spring is consistent with the overall diameter of annular piston; Between described annular movable friction plate and annular static friction sheet, be provided with annular friction partition.
Beneficial effect of the present invention is: compared with the front axle steering knuckle using with current ore deposit down-hole transportation, shovel car, because front axle steering knuckle is with oil-immersed multi-disk brake, there is explosion prevention function, so, without the another explosion protection of installing, use safe, easy for installation; Because used oil-immersed multi-disk brake only has an annular retracing spring, without guide spiro rod, it is movable sealing that the tubular shell of whole oil-immersed multi-disk brake only has protecgulum place, and the tubular shell of oil-immersed multi-disk brake is sealed more, so improved the explosion-proof performance of oil-immersed multi-disk brake.
Accompanying drawing explanation
Fig. 1 is that axis of no-feathering of the present invention is to cross-sectional schematic;
Fig. 2 is the structure schematic top plan view of annular movable friction plate of the present invention;
Fig. 3 is the structure schematic top plan view of annular static friction sheet of the present invention;
Fig. 4 is front wheel hub schematic side view of the present invention;
Fig. 5 is annular pressing plate schematic top plan view of the present invention;
Fig. 6 is annular piston schematic side view of the present invention;
Fig. 7 is annular retracing spring schematic side view of the present invention.
In figure: 1, propons weld assembly; 2, steering swivel; 3, stub; 4, axle sleeve; 5, protecgulum; 6, front wheel hub; 7, annular brace bearing; 8, ring-spring homing position type oil-immersed multi-disk brake; 9, the diapire of cylindrical case; 10, high pressure oil nozzle; 11, venting mouth stuffed; 12, axial tooth; 13, annular movable friction plate; 14, annular pressing plate; 15, annular static friction sheet; 16, annular piston; 17, piston inner ring sleeve; 18, annular retracing spring; 19, annular high-voltage oil cavity; 20, axial teeth groove; 21, bolt; 22, piston exterior ring cap; 23, internal tooth; 24, external tooth; 25, protruding ring; 26, seal ring card entry slot; 27, seal ring; 28, turn up and fill in edge; 29, annular friction partition.
The specific embodiment
Embodiment
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 have provided an embodiment.This coal mine that integrates wet braking car front axle steering knuckle, comprise propons weld assembly 1 and steering swivel 2, propons weld assembly 1 is connected with the recess wall of steering swivel 2 by stub 3, and be provided with axle sleeve 4 in the end of stub 3, front wheel hub 6 on steering swivel 2 front end sleeves, and be provided with annular brace bearing 7 between front wheel hub 6 inwalls and steering swivel 2 outer walls, it is characterized in that: be provided with ring-spring homing position type oil-immersed multi-disk brake 8 at the middle part of steering swivel 2, the diapire 9 of the cylindrical case of ring-spring homing position type oil-immersed multi-disk brake 8 is fixed as one with the outer wall of steering swivel 2, on the diapire 9 of cylindrical case, be provided with high pressure oil nozzle 10 and venting mouth stuffed 11, adopt this front axle steering knuckle 2 and ring-spring homing position type oil-immersed multi-disk brake 8 integral structures, can more be conducive to sealing in the chamber of ring-spring homing position type oil-immersed multi-disk brake 8, also be conducive to install and use simultaneously, front wheel hub 6 stretches into from the middle through-hole of the protecgulum 5 of ring-spring homing position type oil-immersed multi-disk brake 8, be provided with axial tooth 12 at the middle part of front wheel hub 6, the internal tooth 23 of the annular movable friction plate 13 of ring-spring homing position type oil-immersed multi-disk brake 8 engages with the axial tooth 12 of front wheel hub 6, annular movable friction plate 13 driven rotary under the rotation of front wheel hub 6, and can move axially along the axial tooth of front wheel hub 6 12.
As improvement of the present invention: described ring-spring homing position type oil-immersed multi-disk brake 8, comprise with front axle steering knuckle 2 be fixed as one, cylindrical case, protecgulum 5, annular pressing plate 14, annular movable friction plate 13, annular static friction sheet 15, annular piston 16, piston inner ring sleeve 17, annular retracing spring 18 and the annular high-voltage oil cavity 19 of the ring-spring homing position type oil-immersed multi-disk brake 8 of opening laterally, in the time that complete machine moves, annular movable friction plate 13 is constant angular velocity rotation together with front wheel hub 6, also can move axially simultaneously, the external tooth 24 of annular static friction sheet 15 engages with axial teeth groove 20 in the cylindrical case opening's edge of ring-spring homing position type oil-immersed multi-disk brake 8, because the cylindrical case of ring-spring homing position type oil-immersed multi-disk brake 8 does not rotate, so annular static friction sheet 15 can only axially move, the periphery of protecgulum 5 is fixed on by bolt 21 and seal ring on the mouth of cylindrical case of ring-spring homing position type oil-immersed multi-disk brake 8, be provided with piston inner ring sleeve 17 in the inner side of annular piston 16, piston inner ring sleeve 17 is enclosed within the inner of front wheel hub 6, annular piston 16 on sheathed in the outside of piston inner ring sleeve 17, on the inwall of cylindrical case, fix the piston exterior ring cap 22 that section is " L " shape by internal fixation screw, one end seat of annular retracing spring 18 is on the diapire of piston exterior ring cap 22 of " L " shape at section, the other end seat of annular retracing spring 18 is on turning up of annular piston 16 bottoms filled in along 28, in the base end wall of annular piston 16 to being annular high-voltage oil cavity 19 between diapire 9 inner sides of cylindrical case, annular high-voltage oil cavity 19 is communicated with high pressure oil nozzle 10, on the prosopyle edge of annular piston 16, connect annular pressing plate 14, when high brake pressure oil enter from high pressure oil nozzle 10 annular high-voltage oil cavity 19 interior, just the annular pressing plate 14 that promotes annular piston 16 and connect as one outwards moves, annular movable friction plate 13 and annular static friction sheet 15 are compressed mutually, annular retracing spring 18 compresses simultaneously, annular movable friction plate 13 rotates relative to annular static friction sheet 15, its friction force produces lock torque, make front wheel brake, when after high brake pressure oil pressure release oil return, annular retracing spring 18 stretches, and annular piston 16 and the annular pressing plate 14 connecting as one are pulled back, and annular movable friction plate 13 is separated with annular static friction sheet 15, lose friction moment.
The anchor ring middle part of described annular pressing plate 14 is provided with the protruding ring 25 being integrated with annular pressing plate 14, and protruding ring 25 snaps in the interior interference of annular slot of annular piston 16 end faces and fixes; The inside and outside wall of described annular piston 16 and the plug that turns up, along being equipped with seal ring card entry slot 26 on 28, snap in seal ring 27 in seal ring card entry slot 26; Described annular retracing spring 18 ends are plane, and to keep the steady push-and-pull of annular piston 16, the interior diameter of annular retracing spring 18 is consistent with the overall diameter of annular piston 16; Between described annular movable friction plate 13 and annular static friction sheet 15, be provided with annular friction partition 29.
Claims (2)
1. integrate the coal mine car front axle steering knuckle of wet braking, comprise propons weld assembly (1) and steering swivel (2), propons weld assembly (1) is connected with the recess wall of steering swivel (2) by stub (3), and be provided with axle sleeve (4) in the end of stub (3), front wheel hub (6) on steering swivel (2) front end sleeve, and be provided with annular brace bearing (7) between front wheel hub (6) inwall and steering swivel (2) outer wall, it is characterized in that: be provided with ring-spring homing position type oil-immersed multi-disk brake (8) at the middle part of steering swivel (2), the diapire (9) of the cylindrical case of ring-spring homing position type oil-immersed multi-disk brake (8) is fixed as one with the outer wall of steering swivel (2), on the diapire (9) of cylindrical case, be provided with high pressure oil nozzle (10) and venting mouth stuffed (11), front wheel hub (6) stretches into from the middle through-hole of the protecgulum (5) of ring-spring homing position type oil-immersed multi-disk brake (8), be provided with axial tooth (12) at the middle part of front wheel hub (6), the internal tooth (23) of the annular movable friction plate (13) of ring-spring homing position type oil-immersed multi-disk brake (8) engages with the axial tooth (12) of front wheel hub (6), described ring-spring homing position type oil-immersed multi-disk brake (8), comprise with front axle steering knuckle (2) be fixed as one, cylindrical case, protecgulum (5), annular pressing plate (14), annular movable friction plate (13), annular static friction sheet (15), annular piston (16), piston inner ring sleeve (17), annular retracing spring (18) and the annular high-voltage oil cavity (19) of the ring-spring homing position type oil-immersed multi-disk brake (8) of opening laterally, the external tooth (24) of annular static friction sheet (15) engages with axial teeth groove (20) in the cylindrical case opening's edge of ring-spring homing position type oil-immersed multi-disk brake (8), the periphery of protecgulum (5) is fixed on by bolt (21) and seal ring on the mouth of cylindrical case of ring-spring homing position type oil-immersed multi-disk brake (8), be provided with piston inner ring sleeve (17) in the inner side of annular piston (16), piston inner ring sleeve (17) is enclosed within the inner of front wheel hub (6), at the sheathed upper annular piston in outside (16) of piston inner ring sleeve (17), on the inwall of cylindrical case, fix the piston exterior ring cap (22) that section is " L " shape by internal fixation screw, one end seat of annular retracing spring (18) is on the diapire of piston exterior ring cap (22) of " L " shape at section, the other end seat of annular retracing spring (18) turns up on plug edge (24) annular piston (16) bottom, base end wall at annular piston (16) is annular high-voltage oil cavity (19) between diapire (9) inner side of cylindrical case, annular high-voltage oil cavity (19) is communicated with high pressure oil nozzle (10), the prosopyle of annular piston (16) along on connect upper annular pressing plate (14).
2. the coal mine that integrates wet braking car front axle steering knuckle according to claim 1, it is characterized in that: the anchor ring middle part of described annular pressing plate (14) is provided with the protruding ring (25) being integrated with annular pressing plate (14), protruding ring (25) snaps in the interior interference of annular slot of annular piston (16) end face and fixes; The inside and outside wall of described annular piston (16) and the plug that turns up, along being equipped with seal ring card entry slot (26) on (24), snap in seal ring (27) in seal ring card entry slot (26); Described annular retracing spring (18) end is plane, and the interior diameter of annular retracing spring (18) is consistent with the overall diameter of annular piston (16); Between described annular movable friction plate (13) and annular static friction sheet (15), be provided with annular friction partition (29).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210292605.3A CN102774360B (en) | 2012-08-17 | 2012-08-17 | Coal mine front axle steering knuckle integrating wet brake |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210292605.3A CN102774360B (en) | 2012-08-17 | 2012-08-17 | Coal mine front axle steering knuckle integrating wet brake |
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| CN102774360A CN102774360A (en) | 2012-11-14 |
| CN102774360B true CN102774360B (en) | 2014-06-04 |
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| CN107299946B (en) * | 2017-08-23 | 2023-04-14 | 龙岩文伍车桥制造有限公司 | Wet-type polydisc stopper |
| CN108730375A (en) * | 2018-05-31 | 2018-11-02 | 盛瑞传动股份有限公司 | Brake and speed changer |
| CN109505894A (en) * | 2018-11-27 | 2019-03-22 | 襄阳全系康动力机械有限责任公司 | A kind of explosion-proof brake structure of wet type |
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| CN202686319U (en) * | 2012-08-17 | 2013-01-23 | 莱芜市东岳永盛车桥有限公司 | Wet-type braking integrated front axle steering knuckle of coal mine car |
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2012
- 2012-08-17 CN CN201210292605.3A patent/CN102774360B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0442907B1 (en) * | 1988-11-12 | 1993-07-21 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Wheel head for oil-lubricated disk brakes |
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| CN102774360A (en) | 2012-11-14 |
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Address after: 271100 No. 30, Yixiang North Road, Kou Town sub district office, Laiwu District, Jinan City, Shandong Province Patentee after: SHANDONG DONGYUE YONGSHENG AXLE Co.,Ltd. Address before: 271114 north head of Yixiang North Road, Laicheng Industrial Park (Kou Town), Laiwu City, Shandong Province Patentee before: LAIWU DONGYUE YONGSHENG AXLE Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Front axle steering knuckle of coal mine well vehicle integrating wet braking Effective date of registration: 20210813 Granted publication date: 20140604 Pledgee: Laishang Bank Co.,Ltd. Kouzhen sub branch Pledgor: SHANDONG DONGYUE YONGSHENG AXLE Co.,Ltd. Registration number: Y2021980007681 |
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Date of cancellation: 20220819 Granted publication date: 20140604 Pledgee: Laishang Bank Co.,Ltd. Kouzhen sub branch Pledgor: SHANDONG DONGYUE YONGSHENG AXLE CO.,LTD. Registration number: Y2021980007681 |
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Denomination of invention: Front axle steering knuckle of coal mine vehicle integrating wet braking Effective date of registration: 20220902 Granted publication date: 20140604 Pledgee: Laishang Bank Co.,Ltd. Kouzhen sub branch Pledgor: SHANDONG DONGYUE YONGSHENG AXLE CO.,LTD. Registration number: Y2022980014294 |
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Date of cancellation: 20230901 Granted publication date: 20140604 Pledgee: Laishang Bank Co.,Ltd. Kouzhen sub branch Pledgor: SHANDONG DONGYUE YONGSHENG AXLE CO.,LTD. Registration number: Y2022980014294 |
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Denomination of invention: Front axle steering knuckle for coal mine well vehicles that integrates wet braking Effective date of registration: 20230908 Granted publication date: 20140604 Pledgee: Laishang Bank Co.,Ltd. Kouzhen sub branch Pledgor: SHANDONG DONGYUE YONGSHENG AXLE CO.,LTD. Registration number: Y2023980055857 |
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