CN206569982U - A kind of speed limiting system of front loading type forklift gantry movement - Google Patents
A kind of speed limiting system of front loading type forklift gantry movement Download PDFInfo
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- CN206569982U CN206569982U CN201720161740.2U CN201720161740U CN206569982U CN 206569982 U CN206569982 U CN 206569982U CN 201720161740 U CN201720161740 U CN 201720161740U CN 206569982 U CN206569982 U CN 206569982U
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- door frame
- hydraulic oil
- connection
- proximity switch
- oil pump
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Abstract
The utility model discloses a kind of speed limiting system of front loading type forklift gantry movement, the oil cylinder moved forward and backward including control crank and driving door frame bearing along the supporting leg channel-section steel on vehicle frame, the oil cylinder is connected by the output end of reversal valve and hydraulic oil pump, and the valve element of the reversal valve and the connecting rod of control crank are connected；The front and back ends of the control crank be connected to it is forward and backward remove pass, the bottom of the door frame bearing is installed with the forward and backward shifting proximity switch of the bottom plate position for detecting vehicle frame respectively；It is described it is forward and backward remove close and it is forward and backward shifting proximity switch output end be connected with the input of controller, the output end and motor connection of the controller, the rotating speed for controlled motor；The motor is connected driving hydraulic oil pump rotation with hydraulic oil pump.Hydraulic oil pump output flow is changed by controlled motor rotating speed, the purpose of control door frame translational speed is reached, it is to avoid door frame is rocked caused by impact, and ensure that the efficiency of the forward and backward shifting of door frame.
Description
Technical field
The utility model is related to a kind of reach truck, and in particular to a kind of speed limit system of front loading type forklift gantry movement
System.
Background technology
The door frame of reach truck is arranged on door frame bearing, before in supporting leg channel-section steel of the door frame bearing on vehicle frame
After move, so as to realize the front and rear shifting function of door frame.The front and rear shifting speed of the door frame of existing reach truck is generally certain value,
When the reach of door frame bearing in place or after move on to when because the speed of front and rear shifting is larger door frame can be caused to rock, so as to have a strong impact on
Forklift workability；If reducing the translational speed of door frame, the operating efficiency of fork truck can be influenceed.So in order to solve the above problems,
Need to design a kind of speed limiting system of front loading type forklift gantry movement, both ensured to move operating efficiency before and after door frame, and solved again because before
It is larger and cause the problem of door frame is rocked that speed is moved afterwards.
Utility model content
The purpose of this utility model is to propose a kind of speed limiting system of front loading type forklift gantry movement, the shifting of control door frame
Dynamic speed, it is to avoid door frame is rocked caused by impact, and ensure that the efficiency of the forward and backward movement of door frame.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of speed limiting system of front loading type forklift gantry movement, including control crank and driving door frame bearing are along on vehicle frame
The oil cylinder that is moved forward and backward of supporting leg channel-section steel, the oil cylinder is connected by the output end of reversal valve and hydraulic oil pump, described to change
The connecting rod of valve element and control crank to valve is connected；The front and back ends of the control crank be connected to reach switch, after remove
Close, it is near that the bottom of the door frame bearing is installed with the reach proximity switch of the bottom plate position for detecting vehicle frame, rear transposing respectively
Switch；The reach switch, after remove input of the output end of passs, reach proximity switch and rear shifting proximity switch with controller
End connection, the output end and motor connection of the controller, the rotating speed for controlled motor；The motor is connected with hydraulic oil pump
Drive hydraulic oil pump rotation.
Further scheme, the output end of the hydraulic oil pump is connected with reversal valve and overflow valve respectively, the reversal valve
Rod chamber, the rodless cavity of two oil-outs respectively with oil cylinder are connected, and the cylinder barrel of the oil cylinder is arranged on vehicle frame, its piston rod and door
Frame bearing is connected；Reversal valve and the overflow valve oil outlet end is connected by return filter with hydraulic oil container.
Further scheme, the reach proximity switch switchs for closed type, and the rear proximity switch that moves switchs for open type.
Further scheme, the model ACE2-350 of the controller, the motor is connected by controller and batteries
Connect and be powered.
Controller in the system is using the ACE2-350 of ZAPI companies of Italy, and its rated voltage is 48V, maximum current
(2min) is 350A.The technical solution of the utility model is not related to the internal structure and operation principle of controller, only by fact
Existing goal of the invention of the present utility model.
Speed limiting system of the present utility model is realized by the rotating speed of controller controlled motor to hydraulic oil pump output hydraulic pressure
The flow of oil is controlled, and reaches the speed of service of control cylinder, and then control the purpose of door frame bearing translational speed.Normal
In the case of, the speed of door frame bearing reach (or rear shifting) is larger, is 130mm/s, so as to improve fork truck operating efficiency；Work as door frame
Bearing reach (or rear shifting), by controlled motor rotating speed, makes the speed of its forward and backward movement be decreased to 60mm/s, made when position
Door frame is gently moved, it is to avoid cause door frame to rock because its impact is excessive.
The maximum pressure of hydraulic oil pump output is adjusted by overflow valve.
The system detects the position between door frame bearing and frame panel using the proximity switch on door frame bearing
Confidence number, it is switched on or switched off circuit and the signal of controller is sent or closed.Because proximity switch is Poul Dorset Sheep, improve
The service life of switch.
Brief description of the drawings
Fig. 1 is structural principle block diagram of the present utility model,
Fig. 2 is door frame bearing and vehicle frame connection diagram in the utility model.
Transposing is near after 1- door frame bearings, 2- vehicle frames, 2.1- supporting leg channel-section steels, 2.2- bottom plates, 3.1- reach proximity switches, 3.2-
Switch, 4- oil cylinders, 5- control cranks, 6- controllers, 7- batteries, 8.1- reach switches remove pass after 8.2-, 9- motors,
10- hydraulic oil pumps, 11- hydraulic oil containers, 12- return filters, 13- overflow valves, 14- reversal valves.
Embodiment
The utility model is described in detail with embodiment below in conjunction with the accompanying drawings pair：
As shown in Figure 1, 2, a kind of speed limiting system of front loading type forklift gantry movement, including control crank 5 and driving door frame
The oil cylinder 4 that bearing 1 is moved forward and backward along the supporting leg channel-section steel 2.1 on vehicle frame 2, the cylinder barrel of oil cylinder 4 is fixed on vehicle frame 2, lived
Stopper rod is connected with door frame bearing 1, and the task driven door frame bearing 1 of oil cylinder 4 drives door frame to realize and moved forward and backward；The oil cylinder 4 leads to
The output end that reversal valve 14 is crossed with hydraulic oil pump 10 is connected, and the valve element of the reversal valve 14 is connected with the connecting rod of control crank 5；Institute
State control crank 5 front and back ends be connected to reach switch 8.1, after remove pass 8.2, the bottom difference of the door frame bearing 1
It is installed with reach proximity switch 3.1, the rear shifting proximity switch 3.2 of the position of bottom plate 2.2 for detecting vehicle frame 2；Removed before described
Close 8.1, after remove the input of pass 8.2, reach proximity switch 3.1 and the rear output end for moving proximity switch 3.2 with controller 6
Connection, the output end of the controller 6 is connected with motor 9, the rotating speed for controlled motor 9；The motor 9 and hydraulic oil pump 10
Connect its rotation.
Further scheme, the output end of the hydraulic oil pump 10 is connected with reversal valve 14 and overflow valve 13 respectively, described to change
It is connected to two oil-outs rod chamber, the rodless cavity respectively with oil cylinder 4 of valve 14, the cylinder barrel of the oil cylinder 4 is arranged on vehicle frame 2,
Its piston rod is connected with door frame bearing 1；Reversal valve 14 and overflow valve 13 oil outlet end passes through return filter 12 and hydraulic pressure
Fuel tank 11 is connected.
Further scheme, the reach proximity switch 3.1 switchs for closed type, and the rear proximity switch 3.2 that moves is opened for open type
Close.
Further scheme, the model ACE2-350 of the controller 6, the motor 9 passes through controller 6 and batteries
7 connections are powered.
The course of work of the system is as follows：
1st, move forward speed limit：
Removed before door frame bearing 1 is parked in the rear end of vehicle frame 2, it is necessary to push away control crank 5, extruding when moving forward, before driver
8.1 are closed, and it is closed (C4=1), output signal to controller 6；The controlled motor 9 of controller 6 works, and (motor speed is
1960rpm), motor 9 drives hydraulic oil pump 10 to work from the oil suction of hydraulic oil container 11, and the hydraulic oil that hydraulic oil pump 10 is exported is through commutation
The P mouths of valve 14 arrive B mouthfuls, then the mouths of the D through oil cylinder 4 enter in the rodless cavity of oil cylinder 4, and its piston rod travels forward, so as to promote door
Frame bearing 1 drives door frame to travel forward, and realizes the reach action of forklift door frame.And the hydraulic oil in the rod chamber of oil cylinder 4 from
Its E mouthfuls, the A mouths through reversal valve 14, T mouthfuls, most return to hydraulic oil container 11 through return filter 12 afterwards.
When current shifting proximity switch 3.1 leaves frame panel 2.2, switch closure (C2=1), output signal to controller 6
Door frame reach speed limit request is sent, controller 6 then slow down (rotating speed is 905 rpm) by controlled motor 9, and now hydraulic oil pump 10 is defeated
Outflow reduces, and makes the reduction of door frame translational speed, so as to realize the reach speed limit of door frame.
2nd, speed limit is moved afterwards：
When door frame bearing 1 be parked in the front end of vehicle frame 2, it is necessary to after move when, driver's post-tensioning control crank 5 is removed after extruding
Close 8.2 and it is closed (C3=1), output signal to controller 6, the controlled motor 9 of controller 6 works, and (motor speed is
1100rpm), the drive of motor 9 hydraulic oil pump 10 works and from the oil suction of hydraulic oil container 11, the hydraulic oil that hydraulic oil pump 10 is exported is through changing
A mouthfuls are arrived to the P mouths of valve 14, then the mouths of the E through oil cylinder 4 enter in the rod chamber of oil cylinder 4, promote its piston rod to move backward, so that
Promote door frame bearing 1 to drive door frame to move backward together, realize the rear mobile work of door frame.And the hydraulic oil in the rodless cavity of oil cylinder 4
From its D mouthfuls to the B of reversal valve 14 mouths, hydraulic oil container 11 is returned to from T mouths, the return filter 12 of reversal valve 14.
When bottom plate 2.2 of the rear shifting proximity switch 3.2 close to vehicle frame, the rear proximity switch 3.2 that moves closes (C1=1), output letter
Number sent to controller 6 and speed limit request is moved after door frame, controller 6 then slow down (rotating speed be 510 rpm) by controlled motor 9, now liquid
The output flow of pressure oil pump 10 reduces, and makes the reduction of door frame translational speed, speed limit is moved after door frame so as to realize.
It is described above, only it is preferred embodiment of the present utility model, not the technical solution of the utility model is made
Any formal limitation.On the premise of the utility model spirit and scope are not departed from, the utility model also has various changes
Change and improve, these changes and improvements are still in the range of the technical solution of the utility model and belong to this claimed reality
With new scope.
Claims (4)
1. a kind of speed limiting system of front loading type forklift gantry movement, including control crank（5）With driving door frame bearing（1）Along car
Frame（2）On supporting leg channel-section steel（2.1）The oil cylinder moved forward and backward（4）, the oil cylinder（4）Pass through reversal valve（14）With hydraulic oil
Pump（10）Output end connection, the reversal valve（14）Valve element and control crank（5）Connecting rod connection；It is characterized in that：Institute
State control crank（5）Front and back ends be connected to reach switch（8.1）, after remove pass（8.2）, the door frame bearing（1）'s
Bottom is installed with for detecting vehicle frame respectively（2）Bottom plate（2.2）The reach proximity switch of position（3.1）, move proximity switch afterwards
（3.2）；The reach switch（8.1）, after remove pass（8.2）, reach proximity switch（3.1）With rear shifting proximity switch（3.2）'s
Output end is and controller（6）Input connection, the controller（6）Output end and motor（9）Connection, for controlling electricity
Machine（9）Rotating speed；The motor（9）With hydraulic oil pump（10）Connection driving hydraulic oil pump rotation.
2. a kind of speed limiting system of front loading type forklift gantry movement according to claim 1, it is characterised in that：The hydraulic pressure
Oil pump（10）Output end respectively with reversal valve（14）And overflow valve（13）Connection, the reversal valve（14）Two oil-outs difference
With oil cylinder（4）Rod chamber, rodless cavity connection, the oil cylinder（4）Cylinder barrel be arranged on vehicle frame（2）On, its piston rod and door frame
Bearing（1）Connection；The reversal valve（14）And overflow valve（13）Oil outlet end passes through return filter（12）With hydraulic oil container
（11）Connection.
3. a kind of speed limiting system of front loading type forklift gantry movement according to claim 1, it is characterised in that：The reach
Proximity switch（3.1）Switched for closed type, proximity switch is moved afterwards（3.2）Switched for open type.
4. a kind of speed limiting system of front loading type forklift gantry movement according to claim 1, it is characterised in that：The control
Device（6）Model ACE2-350, the motor（9）Pass through controller（6）With batteries（7）Connection is powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720161740.2U CN206569982U (en) | 2017-02-22 | 2017-02-22 | A kind of speed limiting system of front loading type forklift gantry movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720161740.2U CN206569982U (en) | 2017-02-22 | 2017-02-22 | A kind of speed limiting system of front loading type forklift gantry movement |
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| Publication Number | Publication Date |
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| CN206569982U true CN206569982U (en) | 2017-10-20 |
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ID=60059779
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| CN201720161740.2U Active CN206569982U (en) | 2017-02-22 | 2017-02-22 | A kind of speed limiting system of front loading type forklift gantry movement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622826A (en) * | 2018-07-23 | 2018-10-09 | 杭叉集团股份有限公司 | Prevent the reach truck hydraulic system that door frame slides back and forth |
| CN109911820A (en) * | 2019-04-26 | 2019-06-21 | 安徽合力股份有限公司 | Reach truck Hydraulic system and control method |
| CN113940282A (en) * | 2021-10-14 | 2022-01-18 | 科为(宁波)机械制造有限公司 | Door body, hoof repairing vehicle and door control method |
-
2017
- 2017-02-22 CN CN201720161740.2U patent/CN206569982U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622826A (en) * | 2018-07-23 | 2018-10-09 | 杭叉集团股份有限公司 | Prevent the reach truck hydraulic system that door frame slides back and forth |
| CN108622826B (en) * | 2018-07-23 | 2023-11-28 | 杭叉集团股份有限公司 | Forward type forklift hydraulic system capable of preventing front and back sliding of portal frame |
| CN109911820A (en) * | 2019-04-26 | 2019-06-21 | 安徽合力股份有限公司 | Reach truck Hydraulic system and control method |
| CN109911820B (en) * | 2019-04-26 | 2023-09-22 | 安徽合力股份有限公司 | Forward forklift hydraulic system and control method |
| CN113940282A (en) * | 2021-10-14 | 2022-01-18 | 科为(宁波)机械制造有限公司 | Door body, hoof repairing vehicle and door control method |
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