CN106495002B - Accelerator linkage mechanism and lorry-mounted crane - Google Patents
Accelerator linkage mechanism and lorry-mounted crane Download PDFInfo
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- CN106495002B CN106495002B CN201610969972.0A CN201610969972A CN106495002B CN 106495002 B CN106495002 B CN 106495002B CN 201610969972 A CN201610969972 A CN 201610969972A CN 106495002 B CN106495002 B CN 106495002B
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- annular groove
- main valve
- valve plug
- linkage mechanism
- channel
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention provides a kind of accelerator linkage mechanism and lorry-mounted crane, it is related to technical field of engineering machinery.Accelerator linkage mechanism includes action bars, banked direction control valves, engine, position detection unit and control unit.Banked direction control valves includes valve body and main valve plug.Through hole is offered on valve body, main valve plug is through through hole and valve body can be axially moved relatively.One end of main valve plug and one end of action bars are hinged.Position detection unit is arranged at the other end of main valve plug.Position detection unit is used for the position signalling for detecting main valve plug, and position signalling is converted into transducing signal and is sent to control unit.Control unit is used to send corresponding voltage signal to engine, the rotating speed of control engine according to transducing signal.Engine is used to provide hydraulic oil to banked direction control valves.Accelerator linkage mechanism makes operator be capable of the rotating speed of coordinated signals engine, while action bars is operated so as to control the flow of engine oil.
Description
Technical field
The present invention relates to technical field of engineering machinery, in particular to accelerator linkage mechanism and lorry-mounted crane.
Background technology
At present, lorry-mounted crane terrestrial operation type, occupies dominant position in lorry-mounted crane.It is such with car
The mode of operation of crane is that operator stands on ground, the operation of loop wheel machine action is carried out by both hands, while carry out engine oil
The control of speed speed is realized in gate control.Because operator should operate loop wheel machine action, throttle is controlled again, causes operation very
Inconvenience.When particularly carrying out multiple loop wheel machine motion actions at the same time, even more can not accurately and effectively it control.Further, since throttle
Matching between size and loop wheel machine action is all to rely on manual control, and the human-subject test and custom of each operator are different from,
Cause the degree of coordinate synchronization very inconsistent, cause in many operating process, energy loss is big, operating efficiency is low.
The content of the invention
It is an object of the invention to provide a kind of accelerator linkage mechanism and lorry-mounted crane, and it aims to solve the problem that existing with car
Loop wheel machine operation and throttle operation independently progress, difficult coordination, the technical problem of operating difficulties in crane.
The first technical scheme provided by the invention：A kind of accelerator linkage mechanism includes action bars, banked direction control valves and engine,
Also include position detection unit and control unit；The banked direction control valves includes valve body and main valve plug；Offered on the valve body
Through hole, the main valve plug is through the through hole and the valve body can be axially moved relatively；One end of the main valve plug and institute
The one end for stating action bars is hinged；The position detection unit is arranged at the other end of the main valve plug；The position detection unit
For detecting the position signalling of the main valve plug, and the position signalling is converted into transducing signal and is sent to the control list
Member；Described control unit is used to send corresponding voltage signal to the engine, the control hair according to the transducing signal
The rotating speed of motivation；The engine is used to provide hydraulic oil to the banked direction control valves.
Further, the position detection unit includes magnetic source element and magnetic strength element；The magnetic source element is fixedly mounted
In the other end of the main valve plug；The magnetic strength element valve body relatively is fixedly mounted and relative with the magnetic source element
Set.
Further, the accelerator linkage mechanism also includes the first end cap；First end cap is fixedly installed in the valve
The outer surface of main body and cover at the magnetic source element；The magnetic strength element is fixedly installed in the inner surface of first end cap.
Further, the accelerator linkage mechanism also includes the second end cap；Second end cap is fixedly installed in the valve
The outer surface of main body and the one end for covering at the main valve plug connection action bars；Opening is offered on second end cap,
The other end of the action bars is arranged at the outside of second end cap by described be open.
Further, the action bars corresponds to the position of the opening and offers connecting hole, is provided with the connecting hole
Rotating shaft, the end of the rotating shaft are connected to the inner surface of the opening.
Further, the accelerator linkage mechanism also includes connecting shaft；One end of the connecting shaft and the main valve plug
The other end is fixedly connected, and the position detection unit is arranged at the other end of the connecting shaft.
Further, offered on the outer peripheral face that the main valve plug is located in the valve body the first annular groove, the second annular groove,
3rd annular groove, the first axis hole, the second axis hole and Triaxial hole；First annular groove, second annular groove and the 3rd annular groove
Interval opens up successively；The axis of the vertical main valve plug of first axis hole, second axis hole and the Triaxial hole and
Through the main valve plug；The first axle hole position in relatively described 3rd annular groove of first annular groove opposite side and in described
First annular groove connects；Second axis hole is located at the side of second annular groove and connected in second annular groove；Described second
Axis hole is used to connect oil pump；The Triaxial hole is located at the opposite side of relatively described first annular groove of the 3rd annular groove and in institute
State the connection of the 3rd annular groove.
Further, the first hydraulic fluid port, the second hydraulic fluid port, first passage, second channel, threeway are offered on the valve body
Road, fourth lane, Five-channel and the 6th passage；The banked direction control valves also includes flow control spool；The flow control spool
It is arranged on the valve body and relative with second annular groove；One end of the first passage connects with first hydraulic fluid port,
The other end of the first passage is relative with first annular groove；One end of the second channel connects with second hydraulic fluid port,
The other end of the second channel is relative with the 3rd annular groove；One end of the third channel connects with the flow control spool
Logical, the other end of the third channel corresponds to the part between first annular groove and second annular groove；The fourth lane
One end connected with the flow control spool, the other end of the fourth lane corresponds to second annular groove and the 3rd ring
Part between groove；One end of the Five-channel corresponds to the opposite side of relatively described first annular groove of first axis hole, described
The other end of Five-channel corresponds to the opposite side of relatively described 3rd annular groove of the Triaxial hole；One end of 6th passage with
The Five-channel connection；The other end of 6th passage is used to connect fuel tank.
Second of technical scheme provided by the invention：A kind of lorry-mounted crane includes above-mentioned accelerator linkage mechanism.
Further, lorry-mounted crane also includes oil pump and fuel tank；The oil pump connects with the banked direction control valves, for institute
State banked direction control valves delivery hydraulic pressure oil；The fuel tank connects with the banked direction control valves, for reclaiming the hydraulic oil of the banked direction control valves output.
The beneficial effect of accelerator linkage mechanism provided by the invention is：Realize that action bars joins with throttle by the way of automatically controlled
It is dynamic, it is simple in construction, abandoned traditional complicated mechanical transmission structure, reduce needed for occupancy space, grasping operator
While operating bar, it is capable of the rotating speed of coordinated signals engine, so as to control the flow of engine oil.
Compared to existing lorry-mounted crane, the beneficial effect of lorry-mounted crane provided by the invention is：Employ above-mentioned oil
Door linking mechanism, the combined operation of action bars and throttle can be realized, reduce operation difficulty, improve control performance, moreover, structure
Simply, space-consuming is smaller.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structural representation for the accelerator linkage mechanism that first embodiment of the invention provides.
Fig. 2 is the theory diagram of the accelerator linkage mechanism in Fig. 1.
Fig. 3 is the structural representation of the main valve plug in Fig. 1.
Fig. 4 is the structural representation of the banked direction control valves in Fig. 1.
Fig. 5 is structural representation of the accelerator linkage mechanism under the first working condition in Fig. 1.
Fig. 6 is structural representation of the accelerator linkage mechanism under second of working condition in Fig. 1.
Icon：100- accelerator linkage mechanisms；110- action bars；111- rotating shafts；120- banked direction control valves；121- valve bodies；122-
Main valve plug；The hydraulic fluid ports of 1211- first；The hydraulic fluid ports of 1212- second；1213- first passages；1214- second channels；1215- third channels；
1216- fourth lanes；1217- Five-channels；The passages of 1218- the 6th；The annular grooves of 1221- first；The annular grooves of 1222- second；1223-
Three annular grooves；The axis holes of 1224- first；The axis holes of 1225- second；1226- Triaxial holes；123- flow control spools；1231- springs
Seat；1232- springs；1233- flow control units；130- position detection units；131- magnetic source elements；132- magnetic strength elements；140-
First end cap；The end caps of 150- second；160- connecting shafts.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, it is to be understood that the instruction such as term " on ", " under ", "left", "right", " interior ", " outer "
Orientation or position relationship be based on orientation shown in the drawings or position relationship, or the invention product using when usually put
Orientation or position relationship, or the orientation that usually understands of those skilled in the art or position relationship, be for only for ease of and retouch
State the present invention and simplify description, rather than indicate or imply that signified equipment or element there must be specific orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint
Relative importance.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connection ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
First embodiment
Fig. 1 is the structural representation for the accelerator linkage mechanism that first embodiment of the invention provides, and refers to Fig. 1.
The present embodiment provide accelerator linkage mechanism 100 include action bars 110, banked direction control valves 120, position detection unit 130,
First end cap 140, the second end cap 150, connecting shaft 160, control unit (not shown) and engine (not shown).Its
In, banked direction control valves 120 includes valve body 121, main valve plug 122 and flow control spool 123.Position detection unit 130 includes magnetic source
Element 131 and magnetic strength element 132.Magnetic strength element 132 can specifically select Hall sensor.
Specifically, offer through hole on valve body 121, main valve plug 122 is through through hole and can the relative axle of valve body 121
To motion.That is, main valve plug 122 is equipped with through hole, main valve plug 122 can left and right be altered in through hole along its axial direction
It is dynamic.
One end of main valve plug 122 and one end of action bars 110 are hinged.The other end of main valve plug 122 and the one of connecting shaft 160
End is fixedly connected, and position detection unit 130 is arranged at the other end of connecting shaft 160.Wherein, magnetic source element 131 is fixedly installed in
The other end of main valve plug 122.Magnetic strength element 132 is fixedly mounted and is oppositely arranged with magnetic source element 131 with respect to valve body 121.The
One end cap 140 is fixedly installed in the outer surface of valve body 121 and covers at magnetic source element 131.Magnetic strength element 132 is fixedly mounted
In the inner surface of the first end cap 140.
Second end cap 150 is fixedly installed in the outer surface of valve body 121 and covers at the attended operation bar 110 of main valve plug 122
One end.Opening is offered on second end cap 150, the other end of action bars 110 is arranged at the outer of the second end cap 150 by opening
Portion.The position of the corresponding opening of action bars 110 offers connecting hole, and rotating shaft 111 is provided with connecting hole, and the end of rotating shaft 111 connects
It is connected to the inner surface of opening.
Fig. 2 is the theory diagram of the accelerator linkage mechanism 100 in Fig. 1, refers to Fig. 2.
Position detection unit 130 is used for the position signalling for detecting main valve plug 122, specifically, magnetic source element 131 and main valve plug
122 motion process is consistent.During relative magnetic strength element 132 moves, magnetic source element 131 passes to magnetic source element 131
The magnetic field of magnetic strength element 132 changes therewith, and magnetic strength element 132 sends corresponding according to the changes of magnetic field sensed to control unit
Transducing signal, control unit send corresponding voltage signal to generator according to the transducing signal received, generated electricity so as to control
The rotating speed of machine, that is, control the flow of generator output.
Because a pair of the position signalling (i.e. the position signalling of main valve plug 122) of magnetic source element 131 and changes of magnetic field degree 1
Should, changes of magnetic field degree corresponds with the transducing signal that magnetic strength element 132 is sent, the electricity that transducing signal is sent with control unit
Signal is pressed to correspond, thus it is possible to which the matching for being pre-designed out the position signalling and generator output flow of main valve plug 122 is bent
Line, according to match curve can quick response main valve plug 122 change in location, change generator output flow.
It is easily understood that the quantity of banked direction control valves 120 can be multiple, accordingly, the quantity of position detection unit 130 with
The quantity of banked direction control valves 120 is equal.The position signalling for the main valve plug 122 that each detection of position detection unit 130 is each responsible for, and to
Transducing signal corresponding to control unit output.The transducing signal that control unit is received by different port, judge main valve plug 122
What kind of athletic performance has been carried out, and the displacement of main valve plug 122 and moving direction are aggregated into program and carried out.
Diversified formulation can be carried out according to the target requirement of reality by inputting the algorithm of computing, and the present embodiment provides a kind of tool
The algorithm of the input computing of body：Acted for the independently moving of main valve plug 122, according to the position signalling of main valve plug 122 and generating
The match curve of machine output flow, it is corresponding to control generator output flow.For multiple athletic performances of main valve plug 122,
Cumulate algorithm can be used, each athletic performance of main valve plug 122 is corresponded into required flux cumulating addition draws total flow, so
Afterwards, the total flow needed for generator output is controlled, or, maximum value-based algorithm can also be used, picks out all of main valve plug 122
Required single maximum stream flow is corresponded in athletic performance, then, the single maximum stream flow needed for control generator output.
Fig. 3 is the structural representation of the main valve plug 122 in Fig. 1, refers to Fig. 3.
The first annular groove 1221, the second annular groove 1222, are offered on the outer peripheral face that main valve plug 122 is located in valve body 121
Three annular grooves 1223, the first axis hole 1224, the second axis hole 1225 and Triaxial hole 1226.First annular groove 1221, the second annular groove 1222
It is spaced and opens up successively with the 3rd annular groove 1223.First axis hole 1224, the second axis hole 1225 and the vertical main valve of Triaxial hole 1226
The axis of core 122 and run through main valve plug 122.First axis hole 1224 is another positioned at 1221 relative 3rd annular groove 1223 of the first annular groove
Side and connected in the first annular groove 1221.Second axis hole 1225 is located at the side of the second annular groove 1222 and in the second annular groove 1222
Connection.Second axis hole 1225 is used to connect oil pump.Triaxial hole 1226 is positioned at 1223 relative first annular groove 1221 of the 3rd annular groove
Opposite side and connected in the 3rd annular groove 1223.
Fig. 4 is the structural representation of the banked direction control valves 120 in Fig. 1, refers to Fig. 4.
Offered on valve body 121 first hydraulic fluid port 1211, the second hydraulic fluid port 1212, first passage 1213, second channel 1214,
Third channel 1215, fourth lane 1216, the passage 1218 of Five-channel 1217 and the 6th.Flow control spool 123 is arranged on valve
It is in main body 121 and relative with the second annular groove 1222.
One end of first passage 1213 connects with the first hydraulic fluid port 1211, the other end of first passage 1213 and the first annular groove
1221 is relative.One end of second channel 1214 connects with the second hydraulic fluid port 1212, the other end of second channel 1214 and the 3rd annular groove
1223 is relative.One end of third channel 1215 connects with flow control spool 123, the other end corresponding first of third channel 1215
Part between the annular groove 1222 of annular groove 1221 and second.One end of fourth lane 1216 connects with flow control spool 123, and the 4th
Part between corresponding second annular groove 1222 of the other end of passage 1216 and the 3rd annular groove 1223.One end pair of Five-channel 1217
Answer the opposite side of 1224 relative first annular groove 1221 of the first axis hole, the corresponding phase of Triaxial hole 1226 of the other end of Five-channel 1217
To the opposite side of the 3rd annular groove 1223.One end of 6th passage 1218 connects with Five-channel 1217.6th passage 1218 it is another
One end is used to connect fuel tank.
Flow control spool 123 includes spring base 1231, spring 1232 and flow control unit 1233.Spring base 1231 is fixed
It is connected on valve body 121.Spring 1232 is arranged on the inside of valve body 121 and one end and contradicted on the surface of spring base 1231.
Flow control unit 1233 is arranged on the inside of valve body 121 and contradicts the other end in spring 1232.When flow control unit 1233
When one end away from spring 1232 is by fluid impact, compression spring 1232 is made the second annular groove 1222 by flow control unit 1233
Connected with third channel 1215 and fourth lane 1216.After the impact that flow control unit 1233 is subject to is cancelled, flow control unit
1233 will set back in the case where spring 1232 acts on, so as to block the second annular groove 1222 and third channel 1215 and fourth lane
1216。
Fig. 5 is structural representation of the accelerator linkage mechanism 100 under the first working condition in Fig. 1, refers to Fig. 5.
After action bars 110 is rotated clockwise around rotating shaft 111 along Fig. 5, main valve plug 122 is with respect to valve body 121
Move right, position detection unit 130 will send corresponding position signalling to control unit.Now, the first hydraulic fluid port 1211 is
Hydraulic fluid port, the second hydraulic fluid port 1212 are oil inlet.Dotted line with the arrow is the flow direction of hydraulic oil in Fig. 5.
Specifically, hydraulic oil outgoing route：Oil pump is to the input hydraulic pressure of the second axis hole 1225 oil, and hydraulic oil is through the second annular groove
1222 flow to flow control unit 1233, and upward flow control unit 1233 make the second annular groove 1222 and third channel 1215 and
Fourth lane 1216 connects, and because fourth lane 1216 is now blocked by main valve plug 122, hydraulic oil will be successively through third channel
1215th, the first annular groove 1221, first passage 1213 reach the first hydraulic fluid port 1211, and exported from the first hydraulic fluid port 1211.
Hydraulic oil inputs path：Hydraulic oil inputs from the second hydraulic fluid port 1212, and flows through second channel 1214, the 3rd ring successively
Groove 1223, Triaxial hole 1226 enter Five-channel 1217.Due to one of now Five-channel 1217 away from the 3rd annular groove 1223
End is blocked by main valve plug 122, and hydraulic oil will flow into the 6th passage 1218 through Five-channel 1217, so as to flow back to fuel tank.
Fig. 6 is structural representation of the accelerator linkage mechanism 100 under second of working condition in Fig. 1, refers to Fig. 6.
After action bars 110 surrounds 111 counterclockwise rotates along Fig. 6 of rotating shaft, main valve plug 122 is with respect to valve body 121
It is moved to the left, position detection unit 130 will send corresponding position signalling to control unit.Now, the first hydraulic fluid port 1211 be into
Hydraulic fluid port, the second hydraulic fluid port 1212 are oil-out.Dotted line with the arrow is the flow direction of hydraulic oil in Fig. 6.
Specifically, hydraulic oil outgoing route：Oil pump is to the input hydraulic pressure of the second axis hole 1225 oil, and hydraulic oil is through the second annular groove
1222 flow to flow control unit 1233, and upward flow control unit 1233 make the second annular groove 1222 and third channel 1215 and
Fourth lane 1216 connects, and because third channel 1215 is now blocked by main valve plug 122, hydraulic oil will be successively through fourth lane
1216th, the 3rd annular groove 1223, Triaxial hole 1226, second channel 1214 reach the second hydraulic fluid port 1212, and from the second hydraulic fluid port 1212
Output.
Hydraulic oil inputs path：Hydraulic oil inputs from the first hydraulic fluid port 1211, and flows through first passage 1213, the first ring successively
Groove 1221, the first axis hole 1224 enter Five-channel 1217.Due to one of now Five-channel 1217 away from the first annular groove 1221
End is blocked by main valve plug 122, and hydraulic oil will flow into the 6th passage 1218 through Five-channel 1217, so as to flow back to fuel tank.
Hydraulic oil then can be used for driving external equipment motion through the first hydraulic fluid port 1211 and the one-in-and-one-out of the second hydraulic fluid port 1212,
Meanwhile the rotating speed of coordinated signals engine, ensure engine at any time to the suitable hydraulic oil of the feed flow of banked direction control valves 120.
The accelerator linkage mechanism 100 that the present embodiment provides, first, realizes action bars 110 and throttle by the way of automatically controlled
Linkage, it is simple in construction, abandoned traditional complicated mechanical transmission structure, reduce needed for occupancy space.Secondly, control is utilized
The matching that unit processed can flexibly set the position signalling and generator output flow of main valve plug 122 according to practical working situation is bent
Line, the action of action bars 110 and throttle is more coordinated, reach and control the accurate, effect of efficient energy-saving.Finally, control unit
In mathematical algorithm can carry out diversified formulation, to adapt to the running in various working environments.
Second embodiment
The lorry-mounted crane that the present embodiment provides includes the accelerator linkage mechanism 100 in oil pump, fuel tank and first embodiment.
Oil pump connects with the second axis hole 1225 on main valve plug 122, for giving the delivery hydraulic pressure of banked direction control valves 120 oil.Fuel tank and valve body 121
On the 6th passage 1218 connect, for reclaim banked direction control valves 120 output hydraulic oil.
What deserves to be explained is the lorry-mounted crane that the present embodiment provides can include multiple action bars 110.Action bars 110
Can be luffing, revolution or hoisting arm expansion etc. through 120 achievable function of banked direction control valves.The athletic performance of action bars 110 and position
Detection unit 130 corresponds to the position signalling that control unit is sent.That is, operation action bars 110 is controlled and risen with car
While the action of heavy-duty machine, the rotating speed of engine can be jointly controlled, realize the coordinated signals to throttle.
The lorry-mounted crane that the present embodiment provides employs the accelerator linkage mechanism 100 in first embodiment, can realize
The combined operation of action bars 110 and throttle, reduce operation difficulty, improve control performance, moreover, simple in construction, space-consuming compared with
It is small.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of accelerator linkage mechanism, including action bars, banked direction control valves and engine, it is characterised in that also including position testing unit
Member and control unit；The banked direction control valves includes valve body and main valve plug；Through hole is offered on the valve body, the main valve plug passes through
It is through at the through hole and the valve body can be axially moved relatively；One end of the main valve plug and one end of the action bars are cut with scissors
Connect；The position detection unit is arranged at the other end of the main valve plug；The position detection unit is used to detect the main valve
The position signalling of core, and the position signalling is converted into transducing signal and is sent to described control unit；Described control unit is used
In sending corresponding voltage signal to the engine, the rotating speed of the control engine according to the transducing signal；The hair
Motivation is used to provide hydraulic oil to the banked direction control valves, and first is offered on the outer peripheral face that the main valve plug is located in the valve body
Annular groove, the second annular groove, the 3rd annular groove, the first axis hole, the second axis hole and Triaxial hole；First annular groove, second annular groove
It is spaced and opens up successively with the 3rd annular groove；First axis hole, second axis hole and the Triaxial hole are vertical described
The axis of main valve plug and run through the main valve plug；The first axle hole position is in relatively described 3rd annular groove of first annular groove
Opposite side and in first annular groove connect；Second axis hole is located at the side of second annular groove and in second ring
Groove connects；Second axis hole is used to connect oil pump；The Triaxial hole is located at relatively described first annular groove of the 3rd annular groove
Opposite side and in the 3rd annular groove connect.
2. accelerator linkage mechanism according to claim 1, it is characterised in that the position detection unit includes magnetic source element
With magnetic strength element；The magnetic source element is fixedly installed in the other end of the main valve plug；The relatively described valve master of the magnetic strength element
Body is fixedly mounted and is oppositely arranged with the magnetic source element.
3. accelerator linkage mechanism according to claim 2, it is characterised in that the accelerator linkage mechanism also includes first end
Lid；First end cap is fixedly installed in the outer surface of the valve body and covers at the magnetic source element；The magnetic strength element
It is fixedly installed in the inner surface of first end cap.
4. accelerator linkage mechanism according to claim 1, it is characterised in that the accelerator linkage mechanism also includes the second end
Lid；Second end cap, which is fixedly installed in the outer surface of the valve body and covers at the main valve plug, connects the action bars
One end；Opening is offered on second end cap, the other end of the action bars is arranged at described second by the opening
The outside of end cap.
5. accelerator linkage mechanism according to claim 4, it is characterised in that the action bars corresponds to the position of the opening
Connecting hole is offered, rotating shaft is provided with the connecting hole, the end of the rotating shaft is connected to the inner surface of the opening.
6. accelerator linkage mechanism according to claim 1, it is characterised in that the accelerator linkage mechanism also includes connection
Axle；One end of the connecting shaft is fixedly connected with the other end of the main valve plug, and the position detection unit is arranged at the company
The other end of spindle.
7. accelerator linkage mechanism according to claim 1, it is characterised in that offered on the valve body the first hydraulic fluid port,
Second hydraulic fluid port, first passage, second channel, third channel, fourth lane, Five-channel and the 6th passage；The banked direction control valves is also
Including flow control spool；The flow control spool is arranged on the valve body and relative with second annular groove；It is described
One end of first passage connects with first hydraulic fluid port, and the other end of the first passage is relative with first annular groove；It is described
One end of second channel connects with second hydraulic fluid port, and the other end of the second channel is relative with the 3rd annular groove；It is described
One end of third channel connects with the flow control spool, and the other end of the third channel corresponds to first annular groove and institute
State the part between the second annular groove；One end of the fourth lane connects with the flow control spool, the fourth lane
The other end corresponds to the part between second annular groove and the 3rd annular groove；One end of the Five-channel corresponds to described first
The opposite side of relatively described first annular groove of axis hole, the other end of the Five-channel correspond to the Triaxial hole the relatively described 3rd
The opposite side of annular groove；One end of 6th passage connects with the Five-channel；The other end of 6th passage is used to connect
Connected tank.
8. a kind of lorry-mounted crane, it is characterised in that including any described accelerator linkage mechanism of claim 1 to 7.
9. lorry-mounted crane according to claim 8, it is characterised in that also including oil pump and fuel tank；The oil pump and institute
Banked direction control valves connection is stated, for giving banked direction control valves delivery hydraulic pressure oil；The fuel tank connects with the banked direction control valves, described for reclaiming
The hydraulic oil of banked direction control valves output.
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| CN201610969972.0A CN106495002B (en) | 2016-10-28 | 2016-10-28 | Accelerator linkage mechanism and lorry-mounted crane |
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| CN201610969972.0A CN106495002B (en) | 2016-10-28 | 2016-10-28 | Accelerator linkage mechanism and lorry-mounted crane |
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| CN106495002A CN106495002A (en) | 2017-03-15 |
| CN106495002B true CN106495002B (en) | 2017-11-21 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792052A (en) * | 1985-12-17 | 1988-12-20 | Kabushiki Kaisha Komatsu Seisakusho | Apparatus for controlling the number of revolutions of an engine |
| CN102616664A (en) * | 2012-03-22 | 2012-08-01 | 三一汽车起重机械有限公司 | Linkage device and engineering machinery |
| CN102734247A (en) * | 2012-07-13 | 2012-10-17 | 三一重工股份有限公司 | Flow control system and method of multi-way directional valve and engineering machinery |
| CN203892287U (en) * | 2014-06-11 | 2014-10-22 | 湖南鸿辉科技有限公司 | Plate-type multi-way valve for truck-mounted crane |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4117739A1 (en) * | 1991-05-30 | 1992-12-03 | Daimler Benz Ag | AUTOMATIC SHIFTING DEVICE OF A MULTI-SPEED GEAR GEAR TRANSMISSION |
| JP3691323B2 (en) * | 2000-01-19 | 2005-09-07 | 新キャタピラー三菱株式会社 | Hydraulic control equipment for construction machinery |
-
2016
- 2016-10-28 CN CN201610969972.0A patent/CN106495002B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4792052A (en) * | 1985-12-17 | 1988-12-20 | Kabushiki Kaisha Komatsu Seisakusho | Apparatus for controlling the number of revolutions of an engine |
| CN102616664A (en) * | 2012-03-22 | 2012-08-01 | 三一汽车起重机械有限公司 | Linkage device and engineering machinery |
| CN102734247A (en) * | 2012-07-13 | 2012-10-17 | 三一重工股份有限公司 | Flow control system and method of multi-way directional valve and engineering machinery |
| CN203892287U (en) * | 2014-06-11 | 2014-10-22 | 湖南鸿辉科技有限公司 | Plate-type multi-way valve for truck-mounted crane |
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| CN106495002A (en) | 2017-03-15 |
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