CN102352895B - Clutch control system and mechanical road roller with same - Google Patents
Clutch control system and mechanical road roller with same Download PDFInfo
- Publication number
- CN102352895B CN102352895B CN 201110237435 CN201110237435A CN102352895B CN 102352895 B CN102352895 B CN 102352895B CN 201110237435 CN201110237435 CN 201110237435 CN 201110237435 A CN201110237435 A CN 201110237435A CN 102352895 B CN102352895 B CN 102352895B
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- valve
- clutch
- control switch
- automatic control
- switch valve
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention provides a clutch control system and a mechanical road roller with the same. The clutch control system comprises an energy accumulator, a first automatic control switch valve connected with the energy accumulator, a flow control valve connected with the first automatic control switch valve, a clutch control oil cylinder connected with the flow control valve and a second automatic control switch valve connected with the first automatic control switch valve and the flow control valve; when the first automatic control switch valve is electrified, hydraulic oil flows into the clutchcontrol oil cylinder through the energy accumulator, the first automatic control switch valve and the flow control valve; and when the second automatic control switch valve is electrified, the hydraulic oil flows back from the clutch control oil cylinder through the flow control valve and the second automatic control switch valve. The flow control valve plays a role in limiting flow and can ensure that the mechanical road roller to slowly start in an accelerating way, thereby reducing the labor intensity of drivers.
Description
Technical field
The present invention relates to a kind of clutch control system and use the mechanical type road roller of this clutch control system.
Background technique
At present, need control clutch during the walking of mechanical type road roller, be generally hydraulic control, air pressure assisted mode is handled, embodiment is: step on small oil tank by the foot treadle that is installed in operator cabin, hydraulic pressure is reached the clutch booster that is installed on the gearbox again.Clutch booster is made up of oil cylinder and cylinder two-part, oil cylinder is connected by oil pipe with the operator cabin small oil tank, cylinder is connected with gas holder on being installed in the mechanical type road roller, and the cylinder internal air pressure increases along with oil cylinder stroke, under the acting in conjunction of oil pressure and air pressure clutch is separated.Yet mainly there is following problem points in this control mode:
1, the mechanical type road roller needs the round road pavement of short distance to roll, and clutch pedal is handled frequent, need slowly unclamp clutch pedal when particularly starting to walk, and the mechanical type road roller is slowly accelerated, and the driver is tired easily;
Need slow loosen the clutch when 2, starting to walk, otherwise machine can produce impact, driver's level be required high;
3, if the driver is improper to clutch operating, can the inner member of mechanical type road roller be impacted as clutch, gearbox, bearing etc., thereby reduced the reliability of inner member.
Therefore, design a kind of clutch control system of clutch automatic slowly combination that makes and make the mechanical type road roller accelerate starting automatically, thereby reduce driver's labor intensity, reduce the suffered impact force of mechanical type road roller inner member and become the problem of needing solution badly.
Summary of the invention
In order to overcome above-mentioned defective and the deficiency of prior art, the object of the present invention is to provide a kind of clutch control system, comprise accumulator, the first automatic control switch valve that is connected with described accumulator, the flow control valve that is connected with the described first automatic control switch valve, oil cylinder is handled in the clutch that is connected with described flow control valve, the second automatic control switch valve that is connected with the described first automatic control switch valve and described flow control valve, when the described first automatic control switch valve gets when electric, hydraulic oil is by described accumulator, the first automatic control switch valve and flow control valve flow into described clutch and handle in the oil cylinder; When the second automatic control switch valve gets when electric, hydraulic oil is handled the oil cylinder from clutch and is refluxed by described flow control valve and the second automatic control switch valve.
Preferably, described flow control valve comprises one-way valve and damping hole, described one-way valve is handled oil cylinder with the described first automatic control switch valve and described clutch respectively and is connected, described damping hole is handled oil cylinder with the described second automatic control switch valve, clutch and is connected, when the described first automatic control switch valve gets when electric, hydraulic oil flows into described clutch by described accumulator, the first automatic control switch valve and one-way valve and handles in the oil cylinder; When the second automatic control switch valve gets when electric, hydraulic oil is handled the oil cylinder from clutch and is refluxed by described damping hole and the second automatic control switch valve.
Preferably, described damping hole is the adjustable damping hole of flow.
Preferably, described flow control valve is a unidirectional series flow control valve.
Preferably, described clutch control system also comprises treadle valve and the 3rd automatic control switch valve, one end of the 3rd automatic control switch valve is connected with described treadle valve, the other end is handled oil cylinder with described clutch and is connected, when described the 3rd automatic control switch valve gets, when the first automatic control switch valve, the second automatic control switch valve dead electricity, the hydraulic oil in the described treadle valve flows into described clutch by described the 3rd automatic control switch valve and handles in the oil cylinder.
Preferably, described clutch control system also comprises the sensor that is arranged at described clutch manipulation oil cylinder one end, described sensor is used for the described clutch of sensing and handles stroke or the pressure of oil cylinder, and then controls the electric and dead electricity that gets of the described first automatic control switch valve and the second automatic control switch valve.
Preferably, described clutch control system also comprises the sensor that is arranged at described treadle valve one end, described sensor is used for stroke or the pressure of sensing treadle valve, and then controls the electric and dead electricity that gets of the described first automatic control switch valve, the second automatic control switch valve and the 3rd automatic control switch valve.
The present invention also provides a kind of clutch control system, oil cylinder is handled in the flow control valve that comprise treadle valve, is connected with described treadle valve and the clutch that is connected with described flow control valve, when stepping on described treadle valve, hydraulic oil flows into described clutch by described flow control valve and handles in the oil cylinder; When releasing the pedal valve, hydraulic oil is handled the oil cylinder from clutch and is refluxed by described flow control valve.
Preferably, described flow control valve comprises one-way valve and damping hole, described one-way valve and damping hole are handled oil cylinder with described treadle valve and described clutch respectively and are connected, and when stepping on described treadle valve, hydraulic oil flows into described clutch by described one-way valve and handles in the oil cylinder; When releasing the pedal valve, hydraulic oil is handled the oil cylinder from clutch and is refluxed by described damping hole.
Preferably, described damping hole is the adjustable damping hole of flow.
Preferably, described flow control valve is a unidirectional series flow control valve.
The present invention also provides a kind of mechanical type road roller of using above-mentioned clutch control system.
Be provided with flow control valve in the clutch control system provided by the present invention, this flow control valve plays the effect of current limliting, can make the mechanical type road roller accelerate starting automatically slowly, thereby reduces driver's labor intensity.
Description of drawings
Figure 1 shows that the hydraulic principle schematic representation of the clutch control system of the present invention's first preferred embodiment.
Figure 2 shows that the hydraulic principle schematic representation of the clutch control system of the present invention's second preferred embodiment.
Figure 3 shows that the another kind of alternative structure of flow control valve of the clutch control system of above-mentioned two preferred embodiments of the present invention.
Embodiment
Below in conjunction with the Fig. 1 in the preferred embodiment of the present invention and Fig. 2, the technological scheme in the embodiment of the invention is clearly and completely described.
The invention provides a kind of clutch control system, it is used for the mechanical type road roller.See also Fig. 1, the clutch control system of the present invention's first preferred embodiment comprises accumulator 10, the first 2/2-way solenoid valve 11, the second 2/2-way solenoid valve 12, one-way valve 13, damping hole 14, treadle valve 15, first sensor 16, the 3rd 2/2-way solenoid valve 17, clutch manipulation oil cylinder 18 and second sensor 19.
The energy of this accumulator 10 is provided to set up pressure stable and is provided hydraulic oil to this first 2/2-way solenoid valve 11 by the gear pump and the pressure regulator valve that are installed on the motor.
This first 2/2-way solenoid valve 11 be used for control flow to from accumulator 10 this one-way valve 13 hydraulic oil conducting with end.One end of this first 2/2-way solenoid valve 11 is connected with this accumulator 10, and the other end of this first 2/2-way solenoid valve 11 is connected with this second 2/2-way solenoid valve 12, one-way valve 13 and damping hole 14.
One end of this second 2/2-way solenoid valve 12 is connected with a fuel tank to receive the hydraulic oil backflow that oil cylinder 18 is handled in this clutch, and the other end of this second 2/2-way solenoid valve 12 is connected with this first 2/2-way solenoid valve 11, one-way valve 13 and damping hole 14.
One end of this one-way valve 13 is connected with this first 2/2-way solenoid valve 11 and the second 2/2-way solenoid valve 12, and its other end is handled oil cylinder 18 with this clutch and is connected.This one-way valve 13 is used for the flow direction of restriction hydraulic oil, namely only makes hydraulic oil flow to this clutch from this accumulator 10 and handles the oil cylinder 18.
One end of this damping hole 14 is connected with this second 2/2-way solenoid valve 12, and its other end is handled oil cylinder 18 with this clutch and is connected.This damping hole 14 is used for control and handles oil cylinder 18 to the flow of the hydraulic oil of these second 2/2-way solenoid valve, 12 inflows by this clutch.
This treadle valve 15 comprises pedal 150 and the pedal oil cylinder 151 that is connected with this pedal 150.
This first sensor 16 can be pressure transducer, position transducer etc., and it is arranged at an end of this treadle valve.This first sensor is used for stroke or the pressure of sensing pedal oil cylinder, so the conducting of controlling this first 2/2-way solenoid valve 11, this second 2/2-way solenoid valve 12 and the 3rd 2/2-way solenoid valve 17 with end.
The 3rd 2/2-way solenoid valve 17 is used for control and flows to conducting that this clutch handles oil cylinder 18 hydraulic oil and end from this treadle valve 15.One end of the 3rd 2/2-way solenoid valve 17 is connected with this treadle valve 15, and its other end is handled oil cylinder 18 with this clutch and is connected.
This clutch is handled oil cylinder 18 and is connected with the 3rd 2/2-way solenoid valve 17, one-way valve 13 and damping hole 14 respectively.This clutch is handled oil cylinder 18 and is comprised that oil cylinder body 180 reaches the upper piston rod 181 that is arranged at versatilely in this oil cylinder body 180.This piston rod 181 can move in this oil cylinder body 180 under the effect of hydraulic oil, and then the separation of solenoidoperated cluthes and combination.
This second sensor 19 can be pressure transducer, position transducer etc., it is arranged at the end that oil cylinder 18 is handled in this clutch, it is used for this clutch of sensing and handles stroke or the pressure of oil cylinder 18, so the conducting of controlling this first 2/2-way solenoid valve 11 and this second 2/2-way solenoid valve 12 with end.
Working procedure to this clutch control system is described in detail below.
When the driver uses 100 pairs of clutches of this clutch control system and controls automatically, the driver leaves neutral position with the gear handle of mechanical type road roller, this moment, thereby this first 2/2-way solenoid valve 11 got electric conducting, and the hydraulic oil of this accumulator 10 is delivered to an end of this one-way valve 13 by this first 2/2-way solenoid valve 11.This hydraulic oil is by this one-way valve 13 and then flow into this clutch and handle in oil cylinder 18.This piston rod 181 stretches out from this oil cylinder body 180 clutch is separated thereby this hydraulic oil promotes this piston rod 181.When clutch thoroughly separated, this second sensor 19 got electric, and simultaneously, the driver carries out engage a gear.When engage a gear is finished, these second sensor, 19 these first 2/2-way solenoid valve, 11 dead electricity of control, this second 2/2-way solenoid valve 12 gets electric, and therefore, this first 2/2-way solenoid valve 11 ends, these second 2/2-way solenoid valve, 12 conductings.At this moment, the action that refluxes of hydraulic oil in oil cylinder 18 is handled in this clutch, and namely hydraulic oil is handled oil cylinder 18 from this clutch and flowed into these damping holes 14, and then from the coupled fuel tank of these second 2/2-way solenoid valve, 12 inflows.Because this damping hole 14 has limited the flow that hydraulic oil refluxes, thereby realized the slow combination of clutch.Therefore, in the process that clutch is controlled automatically, can make the mechanical type road roller carry out accelerating automatically slowly starting, to reduce driver's labor intensity.
When the driver used this clutch control system clutch is manually controlled, the driver stepped on this pedal 150, and then the hydraulic oil that promotes in this pedal oil cylinder 151 flows in the 3rd 2/2-way solenoid valve 17.This first sensor 16 sense the stroke of pedal oil cylinder or pressure and with the 3rd 2/2-way solenoid valve 17 electric, with this first 2/2-way solenoid valve 11 and this second 2/2-way solenoid valve, 12 dead electricity.Therefore, 17 conductings of the 3rd 2/2-way solenoid valve, and this first 2/2-way solenoid valve 11 and this second 2/2-way solenoid valve 12 end.Hydraulic oil enters this clutch by the 3rd 2/2-way solenoid valve 17 and handles in the oil cylinder 18.Handled separation and the combination of oil cylinder 18 solenoidoperated cluthes by this clutch.Owing to fully by driver's control, therefore can make clutch combination slowly equally.
See also Fig. 2, the clutch control system of the present invention's second preferred embodiment comprises treadle valve 15, one-way valve 13, damping hole 14 and clutch manipulation oil cylinder 18.
This treadle valve 15 comprises pedal 150 and the pedal oil cylinder 151 that is connected with this pedal 150.
One end of this one-way valve 13 is connected with this pedal oil cylinder 151, and its other end is handled oil cylinder 18 with this clutch and is connected.This one-way valve 13 is used for the flow direction of restriction hydraulic oil, namely only makes hydraulic oil flow to this clutch from this pedal oil cylinder 151 and handles the oil cylinder 18.
One end of this damping hole 14 is connected with this pedal oil cylinder 151, and its other end is handled oil cylinder 18 with this clutch and is connected.This damping hole 14 is used for control and handles oil cylinder 18 to the flow of the hydraulic oil of these pedal oil cylinder 151 inflows by this clutch.
This clutch is handled oil cylinder 18 and is comprised that oil cylinder body 180 reaches the upper piston rod 181 that is arranged at versatilely in this oil cylinder body 180.This piston rod 181 can move in this oil cylinder body 180 under the effect of hydraulic oil, and then the separation of solenoidoperated cluthes and combination.
Working procedure to this clutch control system is described in detail below.
The driver steps on this pedal 150, and then the hydraulic oil that promotes in this pedal oil cylinder 151 flows in this one-way valve 13, and then flows into this clutch and handle in oil cylinder 18.This piston rod 181 stretches out from this oil cylinder body 180 clutch is separated thereby this hydraulic oil promotes this piston rod 181.When clutch thoroughly separated, the driver carried out engage a gear.After engage a gear finishes, the driver directly unclamps clutch pedal, the hydraulic oil that this clutch is handled in the oil cylinder 18 is back to the pedal oil cylinder 151 from this damping hole 14 lentamente, and then clutch slowly engages, thereby make the mechanical type road roller realize accelerating automatically starting, therefore, can reduce driver's labor intensity, reduce the suffered impact force of mechanical type road roller inner member.
This clutch control system can make the mechanical type road roller carry out accelerating automatically slowly starting, has reduced driver's labor intensity, and prevents that effectively the mechanical type road roller from causing the generation that damages phenomenon because of clutch combination fast to its inner member.
Be appreciated that the 2/2- way solenoid valve 11,12,17 in the above-mentioned preferred embodiment of the present invention can adopt the automatic control switch valve of other types to control, for example two-bit triplet solenoid valve, two position four-way solenoid valves etc.
Be appreciated that the damping hole 14 in the above-mentioned preferred embodiment of the present invention also can be the adjustable damping hole of flow.
See also Fig. 3, be appreciated that one-way valve 13, the damping hole 14 in above-mentioned two preferred embodiments can be substituted by flow control valves such as one-way throttle valve or unidirectional series flow control valves 20.
Be appreciated that when if the power that the driver steps on this pedal 150 is not enough to clutch separation this treadle valve 15 or clutch are handled and a hydraulic type or pneumatic-typed clutch power assisting device can be set so that clutch is separated on the oil cylinder 18.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. clutch control system, it is characterized in that: comprise accumulator (10), the first automatic control switch valve (11) that is connected with described accumulator (10), the flow control valve that is connected with the described first automatic control switch valve (11), oil cylinder (18) is handled in the clutch that is connected with described flow control valve, the second automatic control switch valve (12) that is connected with the described first automatic control switch valve (11) and described flow control valve, treadle valve (15) and the 3rd automatic control switch valve (17), one end of described the 3rd automatic control switch valve (17) is connected with described treadle valve (15), the other end is handled oil cylinder (18) with described clutch and is connected, when the described first automatic control switch valve (11) when electric, hydraulic oil is by described accumulator (10), the first automatic control switch valve (11) and flow control valve flow into described clutch and handle in the oil cylinder (18); When the second automatic control switch valve (12) when electric, hydraulic oil is handled the oil cylinder (18) from clutch and is refluxed by described flow control valve and the second automatic control switch valve (12), when described the 3rd automatic control switch valve (17) gets, when the first automatic control switch valve (11), second automatic control switch valve (12) dead electricity, the hydraulic oil in the described treadle valve (15) flows into described clutch by described the 3rd automatic control switch valve (17) and handles in the oil cylinder (18).
2. clutch control system according to claim 1, it is characterized in that: described flow control valve comprises one-way valve (13) and damping hole (14), described one-way valve (13) is handled oil cylinder (18) with the described first automatic control switch valve (11) and described clutch respectively and is connected, described damping hole (14) and the described second automatic control switch valve (12), clutch is handled oil cylinder (18) and is connected, when the described first automatic control switch valve (11) when electric, hydraulic oil is by described accumulator (10), the first automatic control switch valve (11) and one-way valve (13) flow into described clutch and handle in the oil cylinder (18); When the second automatic control switch valve (12) when electric, hydraulic oil is handled the oil cylinder (18) from clutch and is refluxed by described damping hole (14) and the second automatic control switch valve (12).
3. clutch control system according to claim 2, it is characterized in that: described damping hole (14) is the adjustable damping hole of flow.
4. clutch control system according to claim 1, it is characterized in that: described flow control valve is a unidirectional series flow control valve (20).
5. according to each described clutch control system among the claim 1-4, it is characterized in that: described clutch control system also comprises the sensor (19) that is arranged at described clutch manipulation oil cylinder (18) one ends, described sensor (19) is used for the described clutch of sensing and handles stroke or the pressure of oil cylinder (18), and then controls the electric and dead electricity that gets of the described first automatic control switch valve (11) and the second automatic control switch valve (12).
6. according to each described clutch control system among the claim 1-4, it is characterized in that: described clutch control system also comprises the sensor (16) that is arranged at described treadle valve (15) one ends, described sensor (16) is used for stroke or the pressure of sensing treadle valve (15), and then controls the electric and dead electricity that gets of the described first automatic control switch valve (11), the second automatic control switch valve (12) and the 3rd automatic control switch valve (17).
7. mechanical type road roller, it comprises clutch control system, it is characterized in that: described clutch control system is each described clutch control system among the claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110237435 CN102352895B (en) | 2011-07-13 | 2011-08-18 | Clutch control system and mechanical road roller with same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110195032.8 | 2011-07-13 | ||
| CN201110195032 | 2011-07-13 | ||
| CN 201110237435 CN102352895B (en) | 2011-07-13 | 2011-08-18 | Clutch control system and mechanical road roller with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102352895A CN102352895A (en) | 2012-02-15 |
| CN102352895B true CN102352895B (en) | 2013-09-25 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203011349U Withdrawn - After Issue CN202194975U (en) | 2011-07-13 | 2011-08-18 | Clutch control system and mechanical road roller adopting same |
| CN 201110237435 Expired - Fee Related CN102352895B (en) | 2011-07-13 | 2011-08-18 | Clutch control system and mechanical road roller with same |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203011349U Withdrawn - After Issue CN202194975U (en) | 2011-07-13 | 2011-08-18 | Clutch control system and mechanical road roller adopting same |
Country Status (1)
| Country | Link |
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| CN (2) | CN202194975U (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202194975U (en) * | 2011-07-13 | 2012-04-18 | 三一重工股份有限公司 | Clutch control system and mechanical road roller adopting same |
| CN103089959B (en) * | 2013-01-06 | 2015-11-25 | 徐工集团工程机械股份有限公司 | A kind of mechanical drive road roller many gear speed-changings system |
| CN106032825A (en) * | 2015-03-20 | 2016-10-19 | 上海瑞迪汽车科技有限公司 | Vehicle clutch electro-hydraulic automatic control system |
| CN108006107A (en) * | 2017-11-28 | 2018-05-08 | 长沙卡斯马汽车系统有限公司 | A kind of soft clutch and the oil return line system of soft braking |
| CN113236680B (en) * | 2021-05-24 | 2022-11-01 | 宜宾凯翼汽车有限公司 | Slow release structure of hydraulic clutch control system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3736584A1 (en) * | 1987-10-29 | 1989-05-18 | Bayerische Motoren Werke Ag | Hydraulic actuation device |
| DE4424790A1 (en) * | 1994-07-14 | 1996-01-18 | Bosch Gmbh Robert | Hydraulic emergency control for a friction clutch arranged between an internal combustion engine and a transmission |
| CN101737438A (en) * | 2008-11-12 | 2010-06-16 | 比亚迪股份有限公司 | Automobile clutch hydraulic control system and control method thereof |
| CN202194975U (en) * | 2011-07-13 | 2012-04-18 | 三一重工股份有限公司 | Clutch control system and mechanical road roller adopting same |
-
2011
- 2011-08-18 CN CN2011203011349U patent/CN202194975U/en not_active Withdrawn - After Issue
- 2011-08-18 CN CN 201110237435 patent/CN102352895B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102352895A (en) | 2012-02-15 |
| CN202194975U (en) | 2012-04-18 |
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