CN101565039B - Normally closed braking mechanism for crawler type traveling machine - Google Patents
Normally closed braking mechanism for crawler type traveling machine Download PDFInfo
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- CN101565039B CN101565039B CN200910016016A CN200910016016A CN101565039B CN 101565039 B CN101565039 B CN 101565039B CN 200910016016 A CN200910016016 A CN 200910016016A CN 200910016016 A CN200910016016 A CN 200910016016A CN 101565039 B CN101565039 B CN 101565039B
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- piston
- rocker arm
- traveling machine
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- brake
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Abstract
The invention provides a normally closed braking mechanism for a crawler type traveling machine, and relates to a brake. A support is fixedly provided with an oil cylinder, of which one cavity is a closed cavity provided with an oil inlet and the other cavity is an opened cavity in which a spring set is arranged; and a piston rod of the oil cylinder is connected with a braking control transmissionmechanism of the brake through a connecting piece or the end of which a lengthened external rocker arm or middle rocker arm of the brake is extended out. The braking mechanism can provide reliable pa rking brake when the traveling machine is parked, and quickly and effectively brake the traveling machine when the traveling machine is shut down abnormally, thereby ensuring the safety of the traveling machine and an operator to a maximum extent.
Description
Technical field:
The present invention relates to a kind of crawler type traveling machine stop mechanism, especially a kind of normally closed braking mechanism for crawler type traveling machine.
Background technology:
The employed external contracting drum brake of crawler type traveling machine belongs to drg open in usual, and glancing impact needs hydraulic booster to make it to combine, and reaches the braking purpose, and during dead ship condition, brake collar is often opened.If machinery is flame-out suddenly at dangerous situations such as ramps, be difficult to effectively braking after then losing hydraulic booster, bring certain danger for machinery and operator.
Summary of the invention:
The purpose of this invention is to provide a kind of normally closed braking mechanism for crawler type traveling machine, when dead ship condition or machinery were flame-out suddenly, drg was automatically converted to braking mode.
The objective of the invention is to realize as follows: it relates to drg; A fixing oil cylinder on support, a chamber of oil cylinder is the enclosed cavity that has oil inlet, another chamber of oil cylinder is the open type chamber of built-in spring group; The piston rod of oil cylinder is connected with the control of braking transmission device of drg through attaching parts; The crank motion of piston rod makes attaching parts also produce crank motion, and attaching parts plays reciprocating conduction, and the control of braking transmission device is meant when it moves; Can make drg produce the parts of braking maneuver, the action through oil cylinder makes the drg braking like this.
Described oil cylinder is made up of cylinder body, cylinder cap, piston, piston rod, spring assembly; Piston is in the cylinder body and with the cylinder body inner periphery and seals; Piston rod is connected with piston, and spring assembly is enclosed within on the piston rod, and spring assembly is supported between piston and the preceding inner end surface of cylinder body; Have oil inlet on the cylinder cap, cylinder cap and rear end of the cylinder block are tightly connected.When pressure oil, promote piston rod and stretch out; When losing oil pressure, do the time spent, the piston rod retraction at the pressure of spring assembly.Cooperate with pressure oil through spring assembly, realize the crank motion of piston rod.
Piston rod connects an end of a connecting lever, and the other end of connecting lever connects push rod, the other end shaft clevis plate of push rod, and the fork plate is connected with the control of braking transmission device of drg through its slide opening.They constitute the attaching parts between the control of braking transmission device that is connected oil cylinder piston bar and drg, as a kind of connection type of drive wherein.
Drg has one to be used for and control of braking power bonded assembly outer rocker arm, is that original drg shows the connection rocking arm in its outside especially, and the piston rod of oil cylinder is connected with outer rocker arm through attaching parts.
Drg has an outer rocker arm, the inner end roof pressure secondary piston of outer rocker arm, secondary piston roof pressure primary piston; One end of primary piston roof pressure intermediate rockers, an end of inside connecting rod in the middle of the other end of intermediate rockers is hinged, the other end of inside connecting rod is hinged on the end of inner rocker arm; Inner rocker arm has two other hinge-point; One of them hinge-point is hinged with support arm, and another hinge-point and brake collar rod hinge connection, supporting arm front end prop up on the end that withstands on brake collar; One end of brake collar connecting rod and the other end of brake collar are hinged, and the piston rod of oil cylinder is connected with that end that the intermediate rockers lengthening stretches out through attaching parts.Intermediate rockers is the lengthening remodeling on former intermediate rockers basis, and mechanical parking or the power that makes drg coupler lock when flame-out suddenly are from conduction here.
When mechanical parking or when flame-out suddenly, the oil inlet oil-break of oil cylinder, spring assembly promotes piston motion, and piston drives piston rod and moves, and the control of braking transmission device action that drives drg through attaching parts is braked.When mechanically activated, the oil inlet of oil cylinder advances pressure oil, promotes the elastic force counter motion that piston overcomes spring assembly; Piston drives piston rod and moves; Attaching parts unclamps the effect to the control of braking transmission device of drg, and drg is in releasing orientation, and machinery can normally be walked.If machinery needs glancing impact, step on brake pedal, drive the drg braking through initiatively braking attaching parts.
The present invention can make machinery that the failure-free braking during standstill is provided when Parking, and when non-normal flameout, can realize effectively braking of machinery rapidly, thereby has at utmost guaranteed machinery and operator's safety.
Description of drawings:
Fig. 1 is the structural representation of one embodiment of the present invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
1-support 2-oil cylinder 3-spring assembly 4-connecting lever 5-push rod 6-brake collar connecting rod 7-inner rocker arm 8-inside connecting rod 9-intermediate rockers 10-primary piston 11-secondary piston 12-fork plate 13-outer rocker arm 14-brake collar A. oil inlet
The specific embodiment:
Embodiment 1
With reference to Fig. 1, this normally closed braking mechanism for crawler type traveling machine relates to original drg, and brake structural is: it has an outer rocker arm 13; The inner end roof pressure secondary piston 11 of outer rocker arm 13, secondary piston 11 roof pressure primary pistons 10, an end of primary piston 10 roof pressure intermediate rockers 9; An end of inside connecting rod 8 in the middle of the other end of intermediate rockers 9 is hinged, the other end of inside connecting rod 8 is hinged on the end of inner rocker arm 7, and inner rocker arm 7 has two other hinge-point; The hinged support arm of one of them hinge-point; Another hinge-point and brake collar connecting rod 6 are hinged, and supporting arm front end props up on the end that withstands on brake collar 14, and an end of brake collar connecting rod 6 and the other end of brake collar 14 are hinged.Be provided with a support 1 in addition, a fixing oil cylinder 2 on support 1, described oil cylinder 2 is made up of cylinder body, cylinder cap, piston, piston rod, spring assembly 3; Piston is in the cylinder body and with the cylinder body inner periphery and seals; Piston rod is connected with piston, and spring assembly 3 is enclosed within on the piston rod, and spring assembly 3 is supported between piston and the preceding inner end surface of cylinder body; Have oil inlet A on the cylinder cap; Cylinder cap and rear end of the cylinder block are tightly connected, and the back cavity of oil cylinder 2 is the enclosed cavity that has oil inlet A like this, and it is the open type chamber of built-in spring group 3 that oil cylinder 2 has the ante-chamber of piston rod.Piston rod connects an end of a connecting lever 4, and the other end of connecting lever 4 connects push rod 5, the other end shaft clevis plate 12 of push rod 5, and outer rocker arm 13 upper ends of drg are provided with bearing pin, and bearing pin is inserted in the slide opening of fork plate 12.
When mechanical parking or when flame-out suddenly, the oil inlet A oil-break of oil cylinder 2, spring assembly 3 promotes piston motions; Through connecting lever 4 push rod 5 is moved to the left; Promote outer rocker arm 13 through fork plate 12 secondary piston 11 is moved right, promote primary piston 10 and inside connecting rod 8 is travelled forward, upwards lift brake collar connecting rod 6 through inner rocker arm 7 through intermediate rockers 9; Brake collar 14 is held tightly, thereby reached the braking purpose.When mechanically activated, oil cylinder 2 oil inlet A advance pressure oil, promote its piston upward movement, through connecting lever 4 push rod 5 are moved right, and make outer rocker arm 13 get back to initial position, and brake collar 14 promptly is in releasing orientation like this, and machinery can normally be walked.If machinery needs glancing impact, outer rocker arm 13 is to left movement when stepping on brake pedal, and compressing secondary piston 11 moves right; This moment, hydraulic booster was opened; Pressure oil compressing primary piston 10 moves right, and through intermediate rockers 9 inside connecting rod 8 is travelled forward, and upwards lifts brake collar connecting rod 6 through inner rocker arm 7; Brake collar 14 is held tightly, thereby reached the braking purpose; Because fork plate 12 direction left has a long sliding hole, therefore can't drive push rod 5 together to left movement, so this cover mechanism does not influence the normal brake application operation of machinery when work.
With reference to Fig. 2, this normally closed braking mechanism for crawler type traveling machine relates to original drg, and brake structural is: it has an outer rocker arm 13; The inner end roof pressure secondary piston 11 of outer rocker arm 13, secondary piston 11 roof pressure primary pistons 10, an end of primary piston 10 roof pressure intermediate rockers 9; An end of inside connecting rod 8 in the middle of the other end of intermediate rockers 9 is hinged; The other end of inside connecting rod 8 is hinged on the end of inner rocker arm 7, and inner rocker arm 7 has two other hinge-point, and one of them hinge-point is hinged with support arm; Another hinge-point and brake collar connecting rod 6 are hinged; Supporting arm front end props up on the end that withstands on brake collar 14, and an end of brake collar connecting rod 6 and the other end of brake collar 14 are hinged, and different is that intermediate rockers 9 has lengthening to stretch out the outer end of housing.Be provided with a support 1 in addition, a fixing oil cylinder 2 on support 1, described oil cylinder 2 is made up of cylinder body, cylinder cap, piston, piston rod, spring assembly 3; Piston is in the cylinder body and with the cylinder body inner periphery and seals; Piston rod is connected with piston, and spring assembly 3 is enclosed within on the piston rod, and spring assembly 3 is supported between piston and the preceding inner end surface of cylinder body; Have oil inlet A on the cylinder cap; Cylinder cap and rear end of the cylinder block are tightly connected, and the back cavity of oil cylinder 2 is the enclosed cavity that has oil inlet A like this, and it is the open type chamber of built-in spring group 3 that oil cylinder 2 has the ante-chamber of piston rod.Piston rod connects an end of a connecting lever 4, and the other end of connecting lever 4 connects push rod 5, the other end shaft clevis plate 12 of push rod 5, and that end that the lengthening of intermediate rockers 9 stretches out is provided with bearing pin, and bearing pin is inserted in the slide opening of fork plate 12.
When mechanical parking or when flame-out suddenly; The oil inlet A oil-break of oil cylinder 2, spring assembly 3 promotes piston motion, through connecting lever 4 push rod 5 is moved to the left; Promoting intermediate rockers 9 through fork plate 12 travels forward inside connecting rod 8; Upwards lift brake collar connecting rod 6 through inner rocker arm 7, brake collar 14 is held tightly, thereby reach the braking purpose.When mechanically activated, oil cylinder 2 oil inlet A advance pressure oil, promote its piston upward movement, through connecting lever 4 push rod 5 are moved right, and make intermediate rockers 9 get back to initial position, and brake collar 14 promptly is in releasing orientation like this, and machinery can normally be walked.Step on the brake pedal glancing impact, identical with embodiment 1, same because fork plate 12 direction left has a long sliding hole, can satisfy the stroke requirement of stepping on the brake pedal glancing impact, can not interfere each other with the normal brake application operation.
Claims (3)
1. normally closed braking mechanism for crawler type traveling machine; Relate to drg; It is characterized in that: go up a fixing oil cylinder (2) at support (1), a chamber of oil cylinder (2) is for having the enclosed cavity of oil inlet (A), and another chamber of oil cylinder (2) is the open type chamber of built-in spring group (3); Drg has an outer rocker arm (13), the inner end roof pressure secondary piston (11) of outer rocker arm (13), secondary piston (11) roof pressure primary piston (10); One end of primary piston (10) roof pressure intermediate rockers (9); One end of the hinged inside connecting rod of the other end (8) of intermediate rockers (9), the other end of inside connecting rod (8) are hinged on the end of inner rocker arm (7), and inner rocker arm (7) has two other hinge-point; One of them hinge-point is hinged with support arm; Another hinge-point and brake collar connecting rod (6) are hinged, and supporting arm front end props up on the end that withstands on brake collar (14), and the other end of an end of brake collar connecting rod (6) and brake collar (14) is hinged; The piston rod of oil cylinder (2) is connected with outer rocker arm (13) through attaching parts, perhaps is connected with that end that the lengthening of intermediate rockers (9) stretches out.
2. normally closed braking mechanism for crawler type traveling machine according to claim 1; It is characterized in that: described oil cylinder (2) is made up of cylinder body, cylinder cap, piston, piston rod, spring assembly (3), and piston is in the cylinder body and with the cylinder body inner periphery and seals, and piston rod is connected with piston; Spring assembly (3) is enclosed within on the piston rod; Spring assembly (3) is supported between piston and the preceding inner end surface of cylinder body, has oil inlet (A) on the cylinder cap, and cylinder cap and rear end of the cylinder block are tightly connected.
3. normally closed braking mechanism for crawler type traveling machine according to claim 1; It is characterized in that: piston rod connects an end of a connecting lever (4); The other end of connecting lever (4) connects push rod (5); The other end shaft clevis plate (12) of push rod (5), fork plate (12) perhaps is connected with outer rocker arm (13) through its slide opening, perhaps is connected with that end that the lengthening of intermediate rockers (9) stretches out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910016016A CN101565039B (en) | 2009-06-03 | 2009-06-03 | Normally closed braking mechanism for crawler type traveling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910016016A CN101565039B (en) | 2009-06-03 | 2009-06-03 | Normally closed braking mechanism for crawler type traveling machine |
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| Publication Number | Publication Date |
|---|---|
| CN101565039A CN101565039A (en) | 2009-10-28 |
| CN101565039B true CN101565039B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910016016A Active CN101565039B (en) | 2009-06-03 | 2009-06-03 | Normally closed braking mechanism for crawler type traveling machine |
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| Country | Link |
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| CN (1) | CN101565039B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310849A (en) * | 2010-07-05 | 2012-01-11 | 天津柳工机械有限公司 | Normally-closed brake assist braking system |
| CN109469690A (en) * | 2018-11-07 | 2019-03-15 | 洛阳智能农业装备研究院有限公司 | A kind of automatic driving vehicle electric control braking component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4549640A (en) * | 1982-01-28 | 1985-10-29 | Hitachi Construction Machinery Co., Ltd. | Operation system for hoisting device |
| CN2146469Y (en) * | 1992-10-28 | 1993-11-17 | 青岛工具一厂 | Double-function brake |
| CN2542638Y (en) * | 2002-05-10 | 2003-04-02 | 江苏如石机械有限公司 | Winch spring cylinder brake |
| CN1843887A (en) * | 2006-05-17 | 2006-10-11 | 哈尔滨工程机械制造有限责任公司 | Normally engaging/disengaging dual-purpose brake device of crane |
-
2009
- 2009-06-03 CN CN200910016016A patent/CN101565039B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4549640A (en) * | 1982-01-28 | 1985-10-29 | Hitachi Construction Machinery Co., Ltd. | Operation system for hoisting device |
| CN2146469Y (en) * | 1992-10-28 | 1993-11-17 | 青岛工具一厂 | Double-function brake |
| CN2542638Y (en) * | 2002-05-10 | 2003-04-02 | 江苏如石机械有限公司 | Winch spring cylinder brake |
| CN1843887A (en) * | 2006-05-17 | 2006-10-11 | 哈尔滨工程机械制造有限责任公司 | Normally engaging/disengaging dual-purpose brake device of crane |
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| Publication number | Publication date |
|---|---|
| CN101565039A (en) | 2009-10-28 |
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