CN202038179U - Speed-limiting protective device for hydraulic walking motor of wheeled vehicle - Google Patents
Speed-limiting protective device for hydraulic walking motor of wheeled vehicle Download PDFInfo
- Publication number
- CN202038179U CN202038179U CN2010206879927U CN201020687992U CN202038179U CN 202038179 U CN202038179 U CN 202038179U CN 2010206879927 U CN2010206879927 U CN 2010206879927U CN 201020687992 U CN201020687992 U CN 201020687992U CN 202038179 U CN202038179 U CN 202038179U
- Authority
- CN
- China
- Prior art keywords
- speed
- module
- controller
- retaining
- limiting protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Control Of Fluid Gearings (AREA)
Abstract
The utility model belongs to the field of speed-limiting protective devices for hydraulic walking motors of wheeled vehicles. A speed-limiting protective device for a hydraulic walking motor of a wheeled vehicle comprises a rotating speed sensor and a controller connected with the sensor, wherein an electric control switch is connected in series between the controller and an electromagnetic valve; the controller consists of a signal acquisition module, a computing module, a data storage module, a judging module and an executing module; the data storage module is connected with the judging module; and the other modules are connected in sequence. By adopting the speed-limiting protective device, the walking motor can be prevented from exceeding the speed limit at any time, normal service life is guaranteed, the economic benefit is enhanced, and the safety is improved.
Description
Technical field
The utility model belongs to wheeled car hydraulic moving motor speed-limiting protection device field; Be used for wheel undercarriage, the vehicle of adapted " hydraulic moving motor " and two retainings " change speed gear box ".
Background technology
Hydraulic moving motor (hereinafter to be referred as " running motor ") drives the vehicle chassis of two retainings " change speed gear box " at present, be widely used in " construction machinery and equipment " class vehicle, as " wheel shovel ", small-sized " hydraulic loader " etc., our " snow throwing machine " also belongs to these row.General two retaining change speed gear boxs, the ratio of low gear and high gear reduction ratio is about 3-4.5, to " wheel ", the ratio of two retaining total reduction gear ratios also is like this from " running motor ".
If a vehicle is arranged, " running motor " in the work down of 4000 rev/mins of maximum speed of revolutions, the ratio of low gear and high gear total reduction gear ratio is 3, its " II retaining " if 45 kilometers/hour of maximum speed, " I retaining " maximum speed should be 15 kilometers/hour so.Otherwise if hang up " I retaining ", the speed of a motor vehicle surpasses 15 kilometers/hour, and then " motor " must be above 4000 rev/mins." II retaining " travels because of not possessing the energy of hypervelocity, so can not exceed the speed limit, its " running motor " can not exceed the speed limit yet." I retaining " speed of a motor vehicle surpasses 15 kilometers/hour, is fully possible.When being transformed to " I retaining " by " II retaining ", driving relationship between " running motor " and " oil feed pump " is cut off, at this moment as immediately change by " II retaining " and be " I retaining ", substantially keeping the original 45 kilometers/hour speed of a motor vehicle because of vehicle has huge inertia, total reduction gear ratio but change into original 3 times big, this makes vehicle become prime power, drive " running motor ", make it to become one " pump ", its rotating speed can increase to original 3 times suddenly, approximately reaches 12000 rev/mins.This just substantially exceeds the highest use rotating speed that " running motor " allowed.Even the speed of a motor vehicle reduces half, its rotating speed also has 6000 rev/mins, and it is a lot of to be still hypervelocity.Have only the speed of a motor vehicle to reduce to 15 kilometers/hour, could ensure that " running motor " do not exceed the speed limit, this point is difficult to artificial control.As seen, the ratio of total reduction gear ratio is big more, and chance of " running motor " hypervelocity and scope are also just big more.
" running motor " often hypervelocity brings a series of disasters, causes the bearing oil temperature too high, and lubricating power descends, and friction member, sealing member premature wear, inefficacy gently then influence service life, heavy then infantile failure, even initiation safety misadventure.
The way of reply is at present: the gearshift of 1. stopping; 2. with driver's experiential operating; 3. do not recognize seriousness, arbitrarily operation.Stop gearshift against the general vehicle driving habit, often do not accepted by people; Operation by rule of thumb can not guarantee that " running motor " do not exceed the speed limit; This is not familiar with, arbitrarily operation, problem is just bigger, makes " running motor " often hypervelocity.The means that at present also do not have machinery to control.
The utility model content
The utility model is intended to overcome the defective of prior art, and a kind of wheeled car hydraulic moving motor speed-limiting protection device is provided.
Wheeled car hydraulic moving motor speed-limiting protection device comprises tachogen, and with sensor bonded assembly controller, electric-controlled switch is connected between controller and the electromagnetic valve; Described controller is by signal acquisition module (being used to gather the analog signal that tachogen sends), computing module (change into digital signal with the rotating speed analog signal that collects then calculate), data memory module (being used to store the criterion data), judge module (data after will calculating and criterion data compare), execution module (when contrast is "Yes", promptly is higher than the running motor maximum permissible revolution, the instruction outage, I retaining oil circuit is cut off, and can not hang up the I retaining; When contrast is " non-", promptly be lower than the running motor maximum permissible revolution, the instruction energising, I retaining oil circuit is switched on, and can hang up the I retaining.), wherein, data memory module is connected with judge module, and other sequence of modules is formed by connecting.
Compared with prior art, the beneficial effects of the utility model are: as do not have this covering device, because two retaining " change speed gear box " high, low speed difference are bigger, in most of the cases, when becoming " I retaining " immediately by " II retaining ", the speed of a motor vehicle is low does not for the moment get off, and causes that vehicle is counter to drag " running motor " high-speed operation, certainly will cause " running motor " life-span to reduce or a series of potential hazard.The utility model has solved this problem from technical measures, can guarantee whenever " running motor " can not exceed the speed limit yet, thereby ensure normal service life, has both improved economic benefit, has improved safety again.
Description of drawings
Fig. 1 is the utility model structural representation, wherein, and 1. running motor 2. change speed gear boxs 3. tachogens 5. signal wire (SW)s, 7.I retaining oil circuit 8. controllers 9. leads 10. leads 11. electric-controlled switchs 12. electromagnetic valves.
Fig. 2 is Fig. 1 middle controller structured flowchart.
The specific embodiment
With reference to the accompanying drawings, the utility model is described further:
Referring to accompanying drawing 1, accompanying drawing 2, wheeled car hydraulic moving motor speed-limiting protection device comprises tachogen, and with sensor bonded assembly controller, electric-controlled switch is connected between controller and the electromagnetic valve; Described controller is used to gather the analog signal that tachogen sends by signal acquisition module; Computing module calculates after the rotating speed analog signal that is used for collecting changes into digital signal; Formula: nm=i*n is adopted in described calculating; Wherein, nm: motor rotary speed, i: the reduction ratio between motor and the output shaft of gear-box, n: the rotating speed of the output shaft of gear-box that collects; Data memory module is used to store criterion data and computing formula (running motor maximum permissible revolution, speed ratio calculation formula); Judge module is used for data and criterion data after calculating are compared; Execution module (when contrast is "Yes", promptly be higher than the running motor maximum permissible revolution, the instruction outage, I retaining oil circuit is cut off, and can not hang up the I retaining; When contrast is " non-", promptly be lower than the running motor maximum permissible revolution, the instruction energising, I retaining oil circuit is switched on, and can hang up the I retaining.) being linked in sequence forms.
The utility model principle of work:
At any time detect " change speed gear box " output shaft rotating speed with " tachogen "; by ' controller ' (available micro controller system, CPU, digital signal processor etc. are made); calculate the running motor rotating speed; and differentiate whether it is higher than the running motor maximum permissible revolution; output command is given ' electric-controlled switch ' and then control " electromagnetic valve " again; by " electromagnetic valve " execution " I retaining " control oil channel (or gas circuit) on-off, to implement running motor speed limit automatic protection functions.
This patent has a extensive future, and every employing " hydraulic moving motor " driving " two retaining change speed gear boxs " all can be used by the wheeled car of hydraulic pressure or Pneumatic shift.Mainly contain industrial wheeled equipment class, special engineered vehicle etc.If this " patent " is used widely, its potential " economic benefit ", " social benefit " all can be fine.Not seeing as yet on the current social has the similar techniques measure.
Claims (2)
1. wheeled car hydraulic moving motor speed-limiting protection device is characterized in that, comprises tachogen, and with tachogen bonded assembly controller, electric-controlled switch is connected between controller and the electromagnetic valve; Described controller is by signal acquisition module, computing module, and data memory module, judge module, execution module, wherein, data memory module is connected with judge module, and other sequence of modules is formed by connecting.
2. wheeled car hydraulic moving motor speed-limiting protection device according to claim 1 is characterized in that, described change speed gear box is two retaining change speed gear boxs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206879927U CN202038179U (en) | 2010-12-29 | 2010-12-29 | Speed-limiting protective device for hydraulic walking motor of wheeled vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206879927U CN202038179U (en) | 2010-12-29 | 2010-12-29 | Speed-limiting protective device for hydraulic walking motor of wheeled vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202038179U true CN202038179U (en) | 2011-11-16 |
Family
ID=44965641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206879927U Expired - Fee Related CN202038179U (en) | 2010-12-29 | 2010-12-29 | Speed-limiting protective device for hydraulic walking motor of wheeled vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202038179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529967A (en) * | 2010-12-29 | 2012-07-04 | 天津市友达机电液成套设备有限公司 | Speed-limiting protective method and device for hydraulic travelling motor of wheel type vehicle |
| CN108457937A (en) * | 2017-05-04 | 2018-08-28 | 中国国际海运集装箱(集团)股份有限公司 | Method and system for inflight meal vehicle electrichydraulic control |
-
2010
- 2010-12-29 CN CN2010206879927U patent/CN202038179U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529967A (en) * | 2010-12-29 | 2012-07-04 | 天津市友达机电液成套设备有限公司 | Speed-limiting protective method and device for hydraulic travelling motor of wheel type vehicle |
| CN108457937A (en) * | 2017-05-04 | 2018-08-28 | 中国国际海运集装箱(集团)股份有限公司 | Method and system for inflight meal vehicle electrichydraulic control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101985300B (en) | Torque control method capable of preventing driving wheels from slipping | |
| WO2012164387A4 (en) | Wind turbine control system having a thrust sensor | |
| CN105257632B (en) | A kind of hydraulic travel system and its control method, environmental sanitation machinery | |
| CN202038179U (en) | Speed-limiting protective device for hydraulic walking motor of wheeled vehicle | |
| CN104220677B (en) | Anti-rollback system for mobile machine | |
| CN102849070B (en) | Tire crane speed control device and method | |
| CN203702159U (en) | Shield tunneling machine and cutter disc driving system thereof | |
| CN103557253B (en) | Two hydrotransmitter planetary transmission two axle friction disk type brake couplings | |
| CN102530730A (en) | Control system of swing mechanism and tower crane | |
| CN102642595B (en) | Two-gear speed-changing driving device of electric vehicle | |
| CN102343910A (en) | Safe and automatic management system for automobile freewheeling device | |
| CN102454547A (en) | Speed reducer for wind power generation equipment | |
| CN102529967A (en) | Speed-limiting protective method and device for hydraulic travelling motor of wheel type vehicle | |
| CN101190768A (en) | Crane gliding-proof hook control device | |
| CN105765217B (en) | Pitch control system | |
| CN203666626U (en) | Automatic speed control device | |
| CN102167000A (en) | Tractor power output control system and control method | |
| CN202642021U (en) | Two-gear transmission drive device for electric vehicle | |
| CN201747467U (en) | Control device for accelerating to prevent flameout at idling speed | |
| CN202768537U (en) | Protection system for hydraulic system of heading machine | |
| CN202089105U (en) | Electro-hydraulic steering system for coach | |
| CN202228273U (en) | Runaway prevention protection device and variable-pitch control system | |
| CN203172848U (en) | Electric motorcycle and CVT infinitely variable driving system thereof | |
| CN202063611U (en) | Engineering machinery and hydraulic control system of cable drum test bed of engineering machinery | |
| CN205086677U (en) | Automatically controlled compound footboard assembly of compressed spring type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN CHENGPU ENGINEERING MACHINERY CO., LTD. Free format text: FORMER OWNER: TIANJIN YOUDA ELECTROMECHANICAL HYDRAULIC COMPLETE EQUIPMENT CO., LTD. Effective date: 20130531 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300393 XIQING, TIANJIN TO: 300380 XIQING, TIANJIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130531 Address after: Tianjin city Xiqing District Yangliuqing town 300380 green road to the east side of South Patentee after: TIANJIN CHENGPU ENGINEERING MACHINERY CO., LTD. Address before: 300393, No. 3, Xingguang Road, North Industrial Park, Middle North Town, Xiqing District, Tianjin Patentee before: Tianjin Youda Electromechanical Hydraulic Complete Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20171229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |