CN202657611U - Hydraulic speed regulation brake device for downward belt - Google Patents
Hydraulic speed regulation brake device for downward belt Download PDFInfo
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- CN202657611U CN202657611U CN 201220370601 CN201220370601U CN202657611U CN 202657611 U CN202657611 U CN 202657611U CN 201220370601 CN201220370601 CN 201220370601 CN 201220370601 U CN201220370601 U CN 201220370601U CN 202657611 U CN202657611 U CN 202657611U
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Abstract
The utility model discloses a hydraulic speed regulation brake device for a downward belt. The hydraulic speed regulation brake device for the downward belt belongs to the technical field of fluid transmission and hydraulic control. The hydraulic speed regulation brake device for the downward belt comprises a magnetic exchange valve, a brake plunger variable pump, a base pressure valve, an overflow valve, a cartridge valve block, a fine filter, a panel, a reversing valve connection transition block, a pipeline connecting transition block, a rack, a first electro-hydraulic proportional flow valve, a second electro-hydraulic proportional flow valve and a synchronous valve seat, wherein the first electro-hydraulic proportional valve and the second electro-hydraulic proportional valve are arranged on the two sides of the synchronous valve seat, and are fixedly connected with the synchronous valve seat. The hydraulic speed regulation brake device for the downward belt enlarges maximum braking torque range, meets the demands of a downward belt conveyor to big braking torque, and enables a large downward belt conveyor to run more steadily, safely and reliably.
Description
Technical field
The utility model relates to Fluid-transmission and technical field of hydraulic, particularly a kind of lower fortune band Hydraulic Adjustable Speed brake equipment.
Background technology
The braking principle of existing Hydraulic Adjustable Speed brake equipment is: produce lock torque by the electro-hydraulic proportional flow valve throttling.Because the restriction of the Hydraulic Elements maximum specification such as electro-hydraulic proportional flow valve in the existing Hydraulic Adjustable Speed brake equipment, restrict the maximum braking moment scope that the Hydraulic Adjustable Speed brake equipment can provide, caused to satisfy length apart from the need of work of the large-scale downward belt conveyor of conveying, large conveying quantity, high spud angle.
The utility model content
Can't satisfy the problem of large-scale downward belt conveyor need of work in order to solve existing Hydraulic Adjustable Speed brake equipment, the utility model provides a kind of lower fortune band Hydraulic Adjustable Speed brake equipment, comprise that solenoid directional control valve, brake plunger variable pump, basic pressure valve, by pass valve, Cartridge inserted valve integrated block, precision filter, panel, change-over valve connect transition block, pipeline connects transition block and frame, also comprise the first electro-hydraulic proportional flow valve, the second electro-hydraulic proportional flow valve and synchronous valve seat; Described first, second electro-hydraulic proportional flow valve is arranged at the both sides of described synchronous valve seat, and captives joint with described synchronous valve seat; Described Cartridge inserted valve integrated block is arranged at described synchronous valve seat downside, and captives joint with bolt with described synchronous valve seat; Described basic pressure valve, by pass valve are arranged at described Cartridge inserted valve integrated block both sides, and captive joint with bolt with described Cartridge inserted valve integrated block; Described change-over valve connects transition block and is arranged at described Cartridge inserted valve integrated block side, and captives joint with bolt with described Cartridge inserted valve integrated block; Described solenoid directional control valve is arranged at described change-over valve and connects the transition block upside, and is connected transition block bolt captive joint with described change-over valve; Described panel is arranged at described Cartridge inserted valve integrated block downside, and captives joint with bolt with described Cartridge inserted valve integrated block; Described erecting places described panel downside, and captives joint with bolt with described panel; Described precision filter is arranged at described panel side, and is connected with pipeline with described panel; Described pipeline connects transition block and is arranged at described precision filter opposite side, and captives joint with bolt with described precision filter; It is inner that described brake plunger variable pump is arranged at described frame, and be connected transition block bolt captive joint with described pipeline.
The lower fortune band Hydraulic Adjustable Speed brake equipment that the utility model provides, enlarged the maximum braking moment scope of time fortune band with the Hydraulic Adjustable Speed brake equipment, thereby satisfied long downward belt conveyor apart from conveying, large conveying quantity, high spud angle to the demand of large lock torque, make large-scale downward belt conveyor operation more steadily, safety, reliable.
Description of drawings
Fig. 1 is the lower fortune band that provides of the utility model embodiment with the front view of Hydraulic Adjustable Speed brake equipment;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is the synchro control electrical schematic diagram that the fortune band is used the Hydraulic Adjustable Speed brake equipment under the utility model embodiment;
Fig. 4 uses to transport band is realized the downward belt conveyor delivery system with the Hydraulic Adjustable Speed brake equipment hydraulic principle scheme drawing under the utility model embodiment.
The specific embodiment
Below in conjunction with drawings and Examples, technical solutions of the utility model are further described.
Referring to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of lower fortune band Hydraulic Adjustable Speed brake equipment, comprises that electro-hydraulic proportional flow valve 1, electro-hydraulic proportional flow valve 2, synchronous valve seat 3, basic pressure valve 4, by pass valve 5, Cartridge inserted valve integrated block 6, precision filter 7, panel 8, pipeline connect transition block 9, brake plunger variable pump 10, frame 11, change-over valve connection transition block 12 and solenoid directional control valve 13.Wherein, electro-hydraulic proportional flow valve 1,2 is arranged at the both sides of synchronous valve seat 3, and captives joint with synchronous valve seat 3 usefulness bolts; Cartridge inserted valve integrated block 6 is arranged at the downside of synchronous valve seat 3, and captives joint with bolt with synchronous valve seat; Base pressure valve 4, by pass valve 5 are arranged at the both sides of Cartridge inserted valve integrated block 6, and captive joint with Cartridge inserted valve integrated block 6 usefulness bolts; Change-over valve connects the side that transition block 12 is arranged at Cartridge inserted valve integrated block 6, and captives joint with Cartridge inserted valve integrated block 6 usefulness bolts; Solenoid directional control valve 13 is arranged at the upside that change-over valve connects transition block 12, and is connected transition block 12 bolt captive joint with change-over valve; Panel 8 is arranged at the downside of Cartridge inserted valve integrated block 6, and captives joint with Cartridge inserted valve integrated block 6 usefulness bolts; Frame 11 is arranged at the downside of panel 8, and captives joint with panel 8 usefulness bolts; Precision filter 7 is arranged at the side of panel 8, and is connected with panel 8 usefulness pipelines; Pipeline connects the opposite side that transition block 9 is arranged at precision filter 7, and captives joint with precision filter 7 usefulness bolts; Brake plunger variable pump 10 is arranged at the inside of frame 11, and is connected transition block 9 bolt captive joint with pipeline.
In concrete production practice, the rotating speed of brake plunger variable pump output shaft is the controlled output that lower fortune band is used the Hydraulic Adjustable Speed brake equipment, by brake plunger variable pump and the integrated control of pressure flow, the mode that the valve port opening of control electro-hydraulic proportional flow valve is carried out the fluid throttling produces lock torque.Generally, the working condition of downward belt conveyor is divided into two kinds, comprises non-damped condition and damped condition.Fig. 4 is the hydraulic principle scheme drawing of being with the downward belt conveyor delivery system that consists of with the Hydraulic Adjustable Speed brake equipment by fortune under the present embodiment, wherein the output shaft of the head roll 73 of downward belt conveyor is connected with the slow-speed shaft of reductor 72, and the output shaft that brake plunger variable pump 10 is connected with motor is connected with the two shafts of the high speed of reductor respectively and rotates thereupon.According to the demand of the different operating modes of downward belt conveyor, the fortune band is as follows with the principle of work of Hydraulic Adjustable Speed brake equipment under corresponding operating mode under the present embodiment:
1) non-damped condition
When not needing lock torque, be that downward belt conveyor is when normally moving, whole lower fortune band is in unloading condition with the Hydraulic Adjustable Speed brake equipment, solenoid directional control valve 13 is opened, brake plunger variable pump 10 is worked with small displacement (minimum injection rate value), the oil of discharging flows back to fuel tank through by pass valve 5, and lower fortune band is not exported lock torque with the Hydraulic Adjustable Speed brake equipment, and whole hydraulic efficiency pressure system dallies with downward belt conveyor.
2) damped condition
When downward belt conveyor loaded starting, hypervelocity or braking, need to produce lock torque.At this moment, solenoid directional control valve 13 is in closed condition, set up brake plunger variable pump 10 discharge capacities and change required pressure, the brake plunger variable pump is with large discharge capacity work (maximum displacement values), lower fortune band is in running order with the Hydraulic Adjustable Speed brake equipment, by synchronous electrohydraulic proportional controller control electro-hydraulic proportional flow valve 1,2 open and-shut mode, the traffic demand when being in large discharge capacity to satisfy brake plunger variable pump 10.5 safety effects of by pass valve.The oil that brake plunger variable pump 10 is discharged returns fuel tank behind basic pressure valve 4, electro-hydraulic proportional flow valve 1 and 2.When the downward belt conveyor loaded starting, the acceleration/accel required according to downward belt conveyor, adjust maximum current and the Current rise speed of synchronous electrohydraulic proportional controller output, control electro-hydraulic proportional flow valve 1,2 the synchronous linearity of valve port are opened, the flow setting valve is increased gradually by zero linearly, and then linear increase of rotating speed of control brake plunger variable pump 10, lock torque reduces gradually, realizes soft start.When downward belt conveyor exceeds the speed limit, synchronously electrohydraulic proportional controller is controlled at maximum opening with electro-hydraulic proportional flow valve 1,2 valve port, and then the rotating speed of the plunger variable pump 10 that will brake is controlled at rated speed of rotation, realization prevents its driving to the speed control (overload speed limit) of downward belt conveyor.When downward belt conveyor is braked, deceleration/decel according to downward belt conveyor, adjust the electric current fall off rate of synchronous electrohydraulic proportional controller output, synchronously electrohydraulic proportional controller reduces to be adjusted to zero with electro-hydraulic proportional flow valve 1,2 flow setting valve by initial value continuously linearly gradually, control electro-hydraulic proportional flow valve 1,2 valve port linearity are closed, and then the rotating speed of control brake plunger variable pump 10 is decreased to zero continuously linearly, and lock torque increases gradually, realizes soft braking.In the starting and braking procedure of downward belt conveyor, when if the required lock torque of downward belt conveyor is used the specified lock torque of Hydraulic Adjustable Speed brake equipment greater than lower fortune band, oil circuit returns fuel tank through by pass valve 5, and lower fortune band provides specified lock torque with the Hydraulic Adjustable Speed brake equipment to downward belt conveyor.As shown in Figure 3, in the present embodiment, because synchronously the two-way Interface Terminal outgoing current of electrohydraulic proportional controller (BC-4G) changes synchronously, thereby two electro-hydraulic proportional flow valves 1,2(Y1 and Y2) aperture consistent, thereby realize synchro control.
In actual applications, if having a power failure suddenly, so can be by emergency source of electrical power to the power supply of synchronous proportional controller, control electro-hydraulic proportional flow valve linearity is closed, and realizes the even brake snub of downward belt conveyor.
The lower fortune band that present embodiment provides is with being provided with synchronous valve seat in the Hydraulic Adjustable Speed brake equipment, the electro-hydraulic proportional flow valve of integrated two same sizes on the synchronous valve seat, these two electro-hydraulic proportional flow valves are shunted and confluxed, and adopt synchronous electrohydraulic proportional controller to control simultaneously this two electro-hydraulic proportional flow valves, make this two synchronous throttlings of electro-hydraulic proportional flow valve, thereby realize large flow electro-hydraulic proportional flow valve function, when having satisfied large lock torque to the demand of large flow.
The lower fortune band Hydraulic Adjustable Speed brake equipment that the utility model embodiment provides, simple in structure, reliability is high, enlarged the maximum braking moment scope of time fortune band with the Hydraulic Adjustable Speed brake equipment, thereby satisfied long downward belt conveyor apart from conveying, large conveying quantity, high spud angle to the demand of large lock torque, realized the soft start to large-scale downward belt conveyor, soft braking, power failure emergency brake and overload Control for Speed Limitation, made large-scale downward belt conveyor operation more steadily, safely, reliably.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (1)
1. a lower fortune is with and is used the Hydraulic Adjustable Speed brake equipment, comprise that solenoid directional control valve, brake plunger variable pump, basic pressure valve, by pass valve, Cartridge inserted valve integrated block, precision filter, panel, change-over valve connect transition block, pipeline connects transition block and frame, it is characterized in that, also comprise the first electro-hydraulic proportional flow valve, the second electro-hydraulic proportional flow valve and synchronous valve seat; Described first, second electro-hydraulic proportional flow valve is arranged at the both sides of described synchronous valve seat, and captives joint with described synchronous valve seat; Described Cartridge inserted valve integrated block is arranged at described synchronous valve seat downside, and captives joint with bolt with described synchronous valve seat; Described basic pressure valve, by pass valve are arranged at described Cartridge inserted valve integrated block both sides, and captive joint with bolt with described Cartridge inserted valve integrated block; Described change-over valve connects transition block and is arranged at described Cartridge inserted valve integrated block side, and captives joint with bolt with described Cartridge inserted valve integrated block; Described solenoid directional control valve is arranged at described change-over valve and connects the transition block upside, and is connected transition block bolt captive joint with described change-over valve; Described panel is arranged at described Cartridge inserted valve integrated block downside, and captives joint with bolt with described Cartridge inserted valve integrated block; Described erecting places described panel downside, and captives joint with bolt with described panel; Described precision filter is arranged at described panel side, and is connected with pipeline with described panel; Described pipeline connects transition block and is arranged at described precision filter opposite side, and captives joint with bolt with described precision filter; It is inner that described brake plunger variable pump is arranged at described frame, and be connected transition block bolt captive joint with described pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370601 CN202657611U (en) | 2012-07-04 | 2012-07-27 | Hydraulic speed regulation brake device for downward belt |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220321622 | 2012-07-04 | ||
| CN201220321622.0 | 2012-07-04 | ||
| CN 201220370601 CN202657611U (en) | 2012-07-04 | 2012-07-27 | Hydraulic speed regulation brake device for downward belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202657611U true CN202657611U (en) | 2013-01-09 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220370601 Expired - Lifetime CN202657611U (en) | 2012-07-04 | 2012-07-27 | Hydraulic speed regulation brake device for downward belt |
| CN201210265403XA Pending CN102745467A (en) | 2012-07-04 | 2012-07-27 | Hydraulic speed-regulation brake device for lower conveying belt |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210265403XA Pending CN102745467A (en) | 2012-07-04 | 2012-07-27 | Hydraulic speed-regulation brake device for lower conveying belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202657611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745467A (en) * | 2012-07-04 | 2012-10-24 | 北京起重运输机械设计研究院 | Hydraulic speed-regulation brake device for lower conveying belt |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756723A (en) * | 2012-07-31 | 2012-10-31 | 北京起重运输机械设计研究院 | Control system for hydraulic oil path |
| CN108545426B (en) * | 2018-06-04 | 2024-01-16 | 中国矿业大学 | Distributed braking device of downward belt conveyor and automatic control method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3320504C1 (en) * | 1983-06-07 | 1988-12-22 | Alfred 5940 Lennestadt Tüschen | Belt band conveyor, especially for backwards conveying in inclined sections |
| CN85200452U (en) * | 1985-04-01 | 1985-12-20 | 机械工业部北京起重运输机械研究所 | Brake equipment of down-conveying belt conveyor |
| CN1219160C (en) * | 2002-11-13 | 2005-09-14 | 太原理工大学 | Hydraulic arrester with capabilities of speed adjustment and soft braking |
| CN1308198C (en) * | 2004-09-27 | 2007-04-04 | 太原理工大学 | Automatic tightening device of belt conveyor |
| JP2008168992A (en) * | 2007-01-11 | 2008-07-24 | Hitachi Constr Mach Co Ltd | Self-propelled conveyor |
| CN202147996U (en) * | 2011-06-08 | 2012-02-22 | 徐州五洋科技有限公司 | Electric-hydraulic control system for disc braking device of downward belt conveyor |
| CN202657611U (en) * | 2012-07-04 | 2013-01-09 | 北京起重运输机械设计研究院 | Hydraulic speed regulation brake device for downward belt |
-
2012
- 2012-07-27 CN CN 201220370601 patent/CN202657611U/en not_active Expired - Lifetime
- 2012-07-27 CN CN201210265403XA patent/CN102745467A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745467A (en) * | 2012-07-04 | 2012-10-24 | 北京起重运输机械设计研究院 | Hydraulic speed-regulation brake device for lower conveying belt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102745467A (en) | 2012-10-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Lama Temple street, Dongcheng District, Dongcheng District, Beijing Patentee after: BEIJING MATERIALS HANDLING RESEARCH INSTITUTE Co.,Ltd. Address before: 100007 Lama Temple street, Dongcheng District, Dongcheng District, Beijing Patentee before: Beijing Materials Handling Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |