CN104912966A - Caliper type brake applied to large-scale mill - Google Patents

Caliper type brake applied to large-scale mill Download PDF

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Publication number
CN104912966A
CN104912966A CN201510285403.XA CN201510285403A CN104912966A CN 104912966 A CN104912966 A CN 104912966A CN 201510285403 A CN201510285403 A CN 201510285403A CN 104912966 A CN104912966 A CN 104912966A
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China
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bearing pin
edge surface
plunger
piston
endoporus
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CN201510285403.XA
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CN104912966B (en
Inventor
曹立钢
王磊
朱明霞
薛秋云
曹全武
索有为
王蕾
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Luoyang CITIC HIC Automation Engineering Co Ltd
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Luoyang CITIC HIC Automation Engineering Co Ltd
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Priority to CN201510285403.XA priority Critical patent/CN104912966B/en
Publication of CN104912966A publication Critical patent/CN104912966A/en
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Abstract

The invention provides a caliper type brake applied to a large-scale mill. The front ends of caliper arms (6) and the front end of an oil cylinder are placed on a support (5) through pin shafts and copper sleeves; the back end of the oil cylinder and a connecting rod (11) are arranged in a copper sleeve inner hole at the back ends of the caliper arms through pin shafts; a plunger (18) drives the connecting rod and the caliper arms to move forwards and backwards; brake shoes (2) can perform reciprocating movement along a support inner hole; a piston (25) and the plunger are positioned in the oil cylinder; a disc spring is mounted on a guide rod and is in contact with the outer end face of the piston through a disc spring pad. According to the caliper type brake applied to the large-scale mill, non-uniform abrasion of the brake shoes and vibration in a braking process can be effectively avoided, so that the utilization ratio of the brake shoes is improved, and the loss of the brake shoes is reduced; the structure of a brake can be simplified, the costs are reduced, and safe operation and positioning requirements, such as lining plate overhauling and replacing, of the large-scale mill can be also ensured.

Description

A kind of caliper brake for large-sized grinder
[technical field]
The present invention relates to mine and building materials field, particularly relate to a kind of break, be specifically related to a kind of caliper brake for large-sized grinder.
[background technique]
Known, along with the continuous progress of science and technology, the grinding machine as one of the field such as mine, building materials visual plant is also constantly updating, and progressively to maximization, full-automatic future development.
Current large-sized grinder adopts single small gear to drive according to transmission power is ascending respectively, and double pinion drives and annular generator drives.But because large-sized grinder adopts its maximum load that can transmit of drive system model to be about 7500 kilowatts, even if grinding machine adopts bilateral gear transmission, its power limit is also limited in 15000 kilowatts/platform.In order to solve high-power driving problem, the annular generator utilizing gearless to drive and utilize two synchronous motors of frequency control of motor speed to arise at the historic moment, makes the configuration of grinding machine also there occurs huge change, abandon originally to drive slowly, transmission device that retarder etc. is traditional.Therefore, how to design and develop large-scale high-power grinding machine break just to seem and be even more important.
In recent years, along with the significantly increase of various countries' mining output, the long-term overload operation of large-sized grinder, the annual number of times changing liner plate is generally 4 ~ 6 times.And along with the maximization of mill product, the liner plate in grinding machine also thereupon increasing, heavier, monolithic weight have reach 5T.The time changing liner plate and maintenance because of grinding machine is every year long, and liner plate volume is large, cylindrical shell need be prevented at any time owing to laying particular stress on generation reversion occurring and causes personnel's injury accident, for ensureing the safe operation of large-sized grinder, the location requirement such as maintenance, replacing liner plate, grinding machine needs the locating function with circumference arbitrary position, under needing to add slow-speed drive condition for this reason, and grinding machine Parking Brake at an arbitrary position.
[summary of the invention]
In order to overcome the deficiency existed in background technique, the invention provides a kind of caliper brake for large-sized grinder, the present invention is by passing through bearing pin by tong arm front end and oil cylinder front end, copper sheathing is positioned on support, oil cylinder rear end and connecting rod by bearing pin in the copper sleeve inner hole of tong arm rear end, plunger drivening rod and tong arm action are forward, rear movement, lock boots can along the to-and-fro motion of support endoporus, piston and plunger are positioned at oil cylinder, belleville spring is filled on the guide bar and is contacted with piston exterior edge face by disc spring pad, the present invention can avoid the vibration in brake shoe uneven wear and braking process effectively, thus improve the utilization ratio of brake shoe, reduce the loss of brake shoe.
For realizing goal of the invention as above, the present invention adopts technological scheme as described below:
A kind of caliper brake for large-sized grinder, comprise brake shoe, lock boots, support, tong arm, connecting rod and oil cylinder, described support is square frame-shaped structure, tong arm is provided with respectively by bearing pin B at the two ends of support endoporus, two tong arms rotate in the endoporus of support around bearing pin B, one end of two tong arms connects lock boots respectively by bearing pin A, on opposite, brake shoe is respectively equipped with at two lock boots, the end of connecting rod is connected respectively by bearing pin E at the other end of two tong arms, between two tong arms support endoporus in be flexibly connected the rear end cover of oil cylinder by bearing pin C, the other end that the plunger of described oil cylinder connects two connecting rods by bearing pin D forms the described caliper brake for large-sized grinder.
The described caliper brake for large-sized grinder, the outer edge surface of described bearing pin A, bearing pin B, bearing pin C, bearing pin D and bearing pin E is respectively equipped with baffle plate.
The described caliper brake for large-sized grinder, the top of described bearing pin A, bearing pin B, bearing pin C, bearing pin D and bearing pin E is respectively equipped with pouring orifice.
The described caliper brake for large-sized grinder, is provided with at least one suspension hook above described support.
The described caliper brake for large-sized grinder, described oil cylinder comprises cylindrical shell, rear end cover, front cover, plunger, belleville spring and guide rod, rear end cover is provided with in one end of described cylindrical shell, front cover is provided with at the other end of cylindrical shell, described rear end cover and front cover are by screw rod and nut check, guide rod is provided with in the middle part of cylindrical shell between rear end cover and front cover, the outer edge surface of guide rod is provided with belleville spring, one end of described guide rod is through the endoporus in the middle part of rear end cover, endoporus in the middle part of rear end cover and be interval with seal ring A and Hai Mosilai between guide rod outer edge surface and enclose A, piston is provided with at the other end of guide rod, high pressure type DSM combination seal is provided with between the outer edge surface of described piston and the inner edge surface of cylindrical shell, plunger is provided with in the end of piston, one end of described plunger is plugged in the endoporus in the middle part of guide rod through the endoporus in the middle part of piston, the other end of plunger is through the endoporus in the middle part of front cover, in the middle part of the outer edge surface and front cover of plunger endoporus inner edge surface between be interval with seal ring B, Basel's sealing and Hai Mosilai enclose B, front cover is provided with the through filler opening to piston end surface.
The described caliper brake for large-sized grinder, described rear end cover is provided with bearing pin perforation, and the inner edge surface that described bearing pin is bored a hole is provided with copper sheathing A, and the inner edge surface of described copper sheathing A is provided with oil guide slot.
The described caliper brake for large-sized grinder, the outer edge surface of described cylindrical shell is provided with oil hole.
The described caliper brake for large-sized grinder, is provided with piston baffle between described plunger and piston, in the middle part of the outer edge surface and piston of plunger endoporus inner edge surface between be provided with seal ring D.
The described caliper brake for large-sized grinder, described belleville spring two ends and be respectively equipped with disc spring pad between rear end cover and piston.
The described caliper brake for large-sized grinder, the external end head of described plunger is provided with through hole, is provided with copper sheathing B in described through hole, and the inner edge surface of described copper sheathing B is provided with oil guide slot.
Adopt technological scheme as above, the present invention has following beneficial effect:
A kind of caliper brake for large-sized grinder of the present invention, the present invention is by passing through bearing pin by tong arm front end and oil cylinder front end, copper sheathing is positioned on support, oil cylinder rear end and connecting rod by bearing pin in the copper sleeve inner hole of tong arm rear end, plunger drivening rod and tong arm action are forward, rear movement, lock boots can along the to-and-fro motion of support endoporus, piston and plunger are positioned at oil cylinder, belleville spring is filled on the guide bar and is contacted with piston exterior edge face by disc spring pad, the present invention can avoid the vibration in brake shoe uneven wear and braking process effectively, thus improve the utilization ratio of brake shoe, reduce the loss of brake shoe, the present invention can either simplify the structure of break, reduce costs, the safe operation of large-sized grinder can be ensured again, maintenance, change the location requirement such as liner plate.
[accompanying drawing explanation]
Fig. 1 is perspective view of the present invention;
Fig. 2 is the perspective view of oil cylinder in the present invention;
Fig. 3 is the sectional structure schematic diagram of oil cylinder in the present invention;
In the drawings: 1, brake shoe; 2, lock boots; 3, bearing pin A; 4, bearing pin B; 5, support; 6, tong arm; 7, baffle plate; 8, suspension hook; 9, bearing pin C; 10, cylindrical shell; 11, connecting rod; 12, bearing pin D; 13, bearing pin E; 14, rear end cover; 15, screw rod; 16, copper sheathing A; 17, front cover; 18, plunger; 19, copper sheathing B; 20, seal ring A; 21, Hai Mosilai encloses A; 22, disc spring pad; 23, belleville spring; 24, guide rod; 25, piston; 26, piston baffle; 27, seal ring B; 28, Basel's sealing; 29, Hai Mosilai encloses B; 30, seal ring C; 31, high pressure type DSM combination seal; 32, seal ring D.
[embodiment]
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples;
A kind of caliper brake for large-sized grinder by reference to the accompanying drawings described in 1 ~ 3, comprise brake shoe 1, lock boots 2, support 5, tong arm 6, connecting rod 11 and oil cylinder, described support 5 is square frame-shaped structure, tong arm 6 is provided with respectively by bearing pin B4 at the two ends of support 5 endoporus, two tong arms 6 rotate in the endoporus of support 5 around bearing pin B4, one end of two tong arms 6 connects lock boots 2 respectively by bearing pin A3, on opposite, brake shoe 1 is respectively equipped with at two lock boots 2, the end of connecting rod 11 is connected respectively by bearing pin E13 at the other end of two tong arms 6, between two tong arms 6 support 5 endoporus in be flexibly connected the rear end cover 14 of oil cylinder by bearing pin C9, the other end that the plunger 18 of described oil cylinder connects two connecting rods 11 by bearing pin D12 forms the described caliper brake for large-sized grinder.
The outer edge surface of wherein said bearing pin A3, bearing pin B4, bearing pin C9, bearing pin D12 and bearing pin E13 is respectively equipped with baffle plate 7, the top of described bearing pin A3, bearing pin B4, bearing pin C9, bearing pin D12 and bearing pin E13 is respectively equipped with pouring orifice, is provided with oil nozzle in the upper end of pouring orifice, at least one suspension hook 8 is provided with above described support 5, described oil cylinder comprises cylindrical shell 10, rear end cover 14, front cover 17, plunger 18, belleville spring 23 and guide rod 24, rear end cover 14 is provided with in one end of described cylindrical shell 10, front cover 17 is provided with at the other end of cylindrical shell 10, described rear end cover 14 and front cover 17 are by screw rod 15 and nut check, guide rod 24 is provided with in the middle part of cylindrical shell 10 between rear end cover 14 and front cover 17, the outer edge surface of guide rod 24 is provided with belleville spring 23, one end of described guide rod 24 is through the endoporus in the middle part of rear end cover 14, endoporus in the middle part of rear end cover 14 and be interval with seal ring A20 and Hai Mosilai between guide rod 24 outer edge surface and enclose A21, piston 25 is provided with at the other end of guide rod 24, high pressure type DSM combination seal 31 is provided with between the outer edge surface of described piston 25 and the inner edge surface of cylindrical shell 10, plunger 18 is provided with in the end of piston 25, one end of described plunger 18 is plugged in the endoporus in the middle part of guide rod 24 through the endoporus in the middle part of piston 25, the other end of plunger 18 is through the endoporus in the middle part of front cover 17, in the middle part of the outer edge surface and front cover 17 of plunger 18 endoporus inner edge surface between be interval with seal ring B27, Basel's sealing 28 and Hai Mosilai enclose B29, front cover 17 is provided with the through filler opening to piston 25 end face, described rear end cover 14 is provided with bearing pin perforation, and the inner edge surface that described bearing pin is bored a hole is provided with copper sheathing A16, and the inner edge surface of described copper sheathing A16 is provided with oil guide slot, the outer edge surface of described cylindrical shell 10 is provided with oil hole, be provided with piston baffle 26 between described plunger 18 and piston 25, in the middle part of the outer edge surface and piston 25 of plunger 18 endoporus inner edge surface between be provided with seal ring D32, described belleville spring 23 two ends and be respectively equipped with disc spring pad 22 between rear end cover 14 and piston 25, the external end head of described plunger 18 is provided with through hole, is provided with copper sheathing B19 in described through hole, and the inner edge surface of described copper sheathing B19 is provided with oil guide slot.
The design of oil cylinder described in the present invention is being easy to, under the prerequisite of processing, optimize, make piston 25, the surface roughness of plunger 18 is 1.6 to cylinder structure and seal form, and processing is easy to reach requirement, reduces costs.Oil cylinder two ends are slidably connected by bearing pin and support 5 and connecting rod 11, can automatically adapt to brake disc beat, make brake disc not by unbalance loading.
The present invention adopts caliper brake to brake large-sized grinder, by controlling operating oil pressure size, regulate the method for caliper brake belleville spring 23 retracting spring power, change the size of the braking force of caliper brake brake shoe 1 pair of brake disc, play the effect of adjustable brake moment, brake and the process that declutches by electromagnetic valve, steady during to ensure that grinding machine is braked, its operating oil pressure is no more than 14MPa, flow 22.5L/min.Further, gap between brake disc and brake block 1 is 3 ~ 3.5mm, energy self adaption brake disc beat, when caliper brake of the present invention closes a floodgate, braking force can reach 300 ~ 500T, and tong arm 6 front end and oil cylinder front end are positioned on support 5 respectively by bearing pin B4 and bearing pin C9, oil cylinder rear end and connecting rod 11 respectively by bearing pin D12 and bearing pin E13 in the endoporus of tong arm 6 rear end, plunger 18 drivening rod 11 and tong arm 6 action are to forward and backward movement, and lock boots 2 can along the to-and-fro motion of support 5 endoporus.Piston 25 and plunger 18 are positioned at oil cylinder, and belleville spring 23 to be contained on guide rod 24 and to be contacted with piston 25 exterior edge face by disc spring pad 22.Compared with existing break technology, both simplified the structure of break, again reduced cost.The present invention simultaneously has automatic compensation function in braking process, do not need to adjust manually, tong arm 6 can slide on the bearing pin coordinated with support 5, automatically can adapting to brake disc beat +/-10mm, solving ordinary disc-type brake device because moving back the unequal phenomenon of brake disc both sides braking force apart from the improper generation of adjustment.Effectively can avoid the vibration in brake shoe uneven wear and braking process, thus improve the utilization ratio of brake shoe, reduce the loss of brake shoe.
The present invention is by the braking of belleville spring 23 precompression, oil pressure brake off, the break that braking force acts on vertically.During grinding machine braking, the precompression of belleville spring 23 forces piston 25 and plunger 18 action, by relevant bearing pin drivening rod 11 and tong arm 6 action, brake slipper on lock boots 2 is released, make the brake disc of brake slipper and cylindrical shell, and produce positive pressure, form frictional force and produce braking.When grinding machine declutches and runs, charged pressure oil in oil cylinder chamber, piston 25 compresses belleville spring 23 again, and is moved forward by plunger 18 drivening rod 11 and tong arm 6 action, thus makes brake slipper leave brake disc, brake off power (namely declutching).When grinding machine normally runs, the completely upper pressure of oil cylinder, break is opened a sluice gate completely.When mine has a power failure or grinding machine bearing lubrication was lost efficacy, brake hydraulic system is with certain speed pressure release, and break closes a floodgate, and grinding machine stops operating in a short period of time, and can stop at fully loaded imbalance state.When changing liner plate and maintenance, grinding machine is with fixing slow rotation to predetermined angle, and braking system can provide fast braking to the grinding machine rotated.
Cylinder seal described in the present invention adopts high pressure type DSM combination seal 31 form, and by multiple structure of sealing lip, leakage efficiency is high, when system pressure raises, " U " shape circle to main seal ring force, wherein guide ring has the function of anti-extrusion, vibration and impulsive load lower seal effective.Plunger 18 is sealed into the structure that Basel adds guide ring, even if under low pressure also can obtain good sealability, makes cylinder efficient more reliable.
Cylinder structure is described as follows:
1, the sealing configuration form of this structure employing, primary seal is DSM combination seal, and plunger seal is the structure that Basel adds guide ring, supports, and sealing is reliable, and surface friction drag is little, meets rate request;
2, the surface roughness of piston 25, plunger 18 is 1.6, and processing is easy to reach requirement, is applicable to self-control;
3, add guide rod 24, improve support, also make the internal diameter processing roughness of cylindrical shell 10 reduce, turnery processing can reach requirement;
4, when requiring beat in working, oil cylinder can pass through bearing pin relative movement, automatically adapts to brake disc beat, when recovery nominal situation oil cylinder realizes automatic centering.
The present invention has following superiority:
1. the braking force of spring can compensate the fair wear and tear of brake shoe;
2. working pressure is low, can extend the working life of sealing and part;
3. break quantity is few, reduces installation difficulty and reduces leakage point;
4. each break has Large Copacity high pressure filter, ensures system clean;
5. each break has independent manually operated valve can turn off maintenance fast to open a sluice gate, have independent safety valve protective system safety.
6. component integration degree is high, reduces difficulty of processing and production procurement cost.
7. making and installation, working service are more prone to convenient;
8. make operated by personnel and safeguard very directly perceived, Safety performance improves greatly simultaneously.
The present invention is also applicable to the similar operating mode application of other products simultaneously.
Further, oil cylinder described in the present invention can replace with cylinder.
Part not in the detailed description of the invention is prior art.
The embodiment selected in this article in order to open object of the present invention, currently thinks to be suitable for, but it is to be understood that the present invention is intended to comprise all changes belonging to the embodiment in this design and invention scope and improvement.

Claims (10)

1. the caliper brake for large-sized grinder, comprise brake shoe (1), lock boots (2), support (5), tong arm (6), connecting rod (11) and oil cylinder, it is characterized in that: described support (5) is square frame-shaped structure, at the two ends of support (5) endoporus respectively by bearing pin B(4) be provided with tong arm (6), two tong arms (6) are around bearing pin B(4) rotate in the endoporus of support (5), one end of two tong arms (6) is respectively by bearing pin A(3) connect lock boots (2), on opposite, brake shoe (1) is respectively equipped with at two lock boots (2), at the other end of two tong arms (6) respectively by bearing pin E(13) connect the end of connecting rod (11), between two tong arms (6) support (5) endoporus in by bearing pin C(9) be flexibly connected the rear end cover (14) of oil cylinder, the plunger (18) of described oil cylinder is by bearing pin D(12) the other end that connects two connecting rods (11) forms the described caliper brake for large-sized grinder.
2. the caliper brake for large-sized grinder according to claim 1, is characterized in that: described bearing pin A(3), bearing pin B(4), bearing pin C(9), bearing pin D(12) and bearing pin E(13) outer edge surface be respectively equipped with baffle plate (7).
3. the caliper brake for large-sized grinder according to claim 1, is characterized in that: described bearing pin A(3), bearing pin B(4), bearing pin C(9), bearing pin D(12) and bearing pin E(13) top be respectively equipped with pouring orifice.
4. the caliper brake for large-sized grinder according to claim 1, is characterized in that: be provided with at least one suspension hook (8) above described support (5).
5. the caliper brake for large-sized grinder according to claim 1, it is characterized in that: described oil cylinder comprises cylindrical shell (10), rear end cover (14), front cover (17), plunger (18), belleville spring (23) and guide rod (24), rear end cover (14) is provided with in one end of described cylindrical shell (10), front cover (17) is provided with at the other end of cylindrical shell (10), described rear end cover (14) and front cover (17) are by screw rod (15) and nut check, cylindrical shell (10) middle part between rear end cover (14) and front cover (17) is provided with guide rod (24), the outer edge surface of guide rod (24) is provided with belleville spring (23), one end of described guide rod (24) is through the endoporus in the middle part of rear end cover (14), rear end cover (14) middle part endoporus and guide rod (24) outer edge surface between be interval with seal ring A(20) and Hai Mosilai enclose A(21), piston (25) is provided with at the other end of guide rod (24), high pressure type DSM combination seal (31) is provided with between the outer edge surface of described piston (25) and the inner edge surface of cylindrical shell (10), plunger (18) is provided with in the end of piston (25), one end of described plunger (18) is plugged on through the endoporus in the middle part of piston (25) in the endoporus at guide rod (24) middle part, the other end of plunger (18) is through the endoporus in the middle part of front cover (17), seal ring B(27 is interval with) between the outer edge surface and the inner edge surface of front cover (17) middle part endoporus of plunger (18), Basel's sealing (28) and Hai Mosilai enclose B(29), front cover (17) is provided with the through filler opening to piston (25) end face.
6. the caliper brake for large-sized grinder according to claim 5, it is characterized in that: described rear end cover (14) is provided with bearing pin perforation, the inner edge surface that described bearing pin is bored a hole is provided with copper sheathing A(16), described copper sheathing A(16) inner edge surface be provided with oil guide slot.
7. the caliper brake for large-sized grinder according to claim 5, is characterized in that: the outer edge surface of described cylindrical shell (10) is provided with oil hole.
8. the caliper brake for large-sized grinder according to claim 5, it is characterized in that: between described plunger (18) and piston (25), be provided with piston baffle (26), between the outer edge surface and the inner edge surface of piston (25) middle part endoporus of plunger (18), be provided with seal ring D(32).
9. the caliper brake for large-sized grinder according to claim 5, is characterized in that: described belleville spring (23) two ends and be respectively equipped with disc spring pad (22) between rear end cover (14) and piston (25).
10. the caliper brake for large-sized grinder according to claim 5, is characterized in that: the external end head of described plunger (18) is provided with through hole, is provided with copper sheathing B(19 in described through hole), described copper sheathing B(19) inner edge surface be provided with oil guide slot.
CN201510285403.XA 2015-05-29 2015-05-29 A kind of caliper brake for large-sized grinder Active CN104912966B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN104912966B CN104912966B (en) 2018-07-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105643612A (en) * 2016-03-07 2016-06-08 中信重工机械股份有限公司 Robot used for replacing spiral liner plate

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US5601163A (en) * 1996-03-05 1997-02-11 Iri International Corporation Automatic adjuster for brake calipers
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CN201588895U (en) * 2009-06-17 2010-09-22 焦作制动器股份有限公司 Torque-adjustable type hydraulic caliper disc brake
CN203358610U (en) * 2013-05-27 2013-12-25 北京纵横机电技术开发公司 Disc brake clamp device for rail car
CN203627607U (en) * 2013-10-30 2014-06-04 焦作市制动器开发有限公司 Hydraulic caliper disc brake with self compensation function
CN203756811U (en) * 2013-12-31 2014-08-06 贵州永兴风能制动器有限责任公司 Hydraulic cylinder with secondary sealing structure
CN204784311U (en) * 2015-05-29 2015-11-18 洛阳中重自动化工程有限责任公司 A caliper disk brake for large mill

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Publication number Priority date Publication date Assignee Title
US5601163A (en) * 1996-03-05 1997-02-11 Iri International Corporation Automatic adjuster for brake calipers
CN101523074A (en) * 2006-07-31 2009-09-02 普利建筑牵引材料有限责任公司(简称:普利有限责任公司) Compact disc-brake unit for vehicles on rails
CN201588895U (en) * 2009-06-17 2010-09-22 焦作制动器股份有限公司 Torque-adjustable type hydraulic caliper disc brake
CN203358610U (en) * 2013-05-27 2013-12-25 北京纵横机电技术开发公司 Disc brake clamp device for rail car
CN203627607U (en) * 2013-10-30 2014-06-04 焦作市制动器开发有限公司 Hydraulic caliper disc brake with self compensation function
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105643612A (en) * 2016-03-07 2016-06-08 中信重工机械股份有限公司 Robot used for replacing spiral liner plate
CN105643612B (en) * 2016-03-07 2017-08-25 中信重工机械股份有限公司 A kind of robot for being used to change screw lining board

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