CN2871266Y - Self-locking mechanism of elastic suspension - Google Patents

Self-locking mechanism of elastic suspension Download PDF

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Publication number
CN2871266Y
CN2871266Y CN 200620078604 CN200620078604U CN2871266Y CN 2871266 Y CN2871266 Y CN 2871266Y CN 200620078604 CN200620078604 CN 200620078604 CN 200620078604 U CN200620078604 U CN 200620078604U CN 2871266 Y CN2871266 Y CN 2871266Y
Authority
CN
China
Prior art keywords
vehicle frame
swing arm
cylinder
frame
track
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
Application number
CN 200620078604
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Chinese (zh)
Inventor
赵永平
王勇
张波
俞汉生
赵长茂
侯忠明
王幼平
朱从民
房月根
任小芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Architectural Engineering Institute of General Logistics Department of PLA
Original Assignee
Architectural Engineering Institute of General Logistics Department of PLA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Architectural Engineering Institute of General Logistics Department of PLA filed Critical Architectural Engineering Institute of General Logistics Department of PLA
Priority to CN 200620078604 priority Critical patent/CN2871266Y/en
Application granted granted Critical
Publication of CN2871266Y publication Critical patent/CN2871266Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an elastic suspension self-locking mechanism, which comprises a frame, a pair of swinging arms arranged at the front end of the frame, front wheels arranged at the both sides of the swinging arms, and a rotating shaft arranged at the back end of the swinging arms. The rotating shaft is connected with the frame; the swinging arms are connected with the frame through half-leaf spring; three locking oil cylinders are arranged at the front end and the left and right sides of the frame each and arranged of a frame track arranged at the front end and the both sides of the frame; a cylinder sleeve projecting shaft is arranged on the frame track and reciprocates in the frame track. The utility model can meet the requirements of both elasticity and rigidity with simple structure and convenience of use.

Description

Spring suspension self locking mechanism
Technical field
The utility model belongs to extraordinary material handling equipment, particularly a kind of spring suspension self locking mechanism that is used for high speed hauling fork car.
Background technology
Existing fork truck and independent trailer have different separately characteristics on the connection mode of vehicle bridge and vehicle frame.Fork truck generally is to carry out under lower-speed state when operation, and the chassis bearing load is bigger during operation, and mostly is impact load, and for guaranteeing the good working effect, existing common fork truck mainly shows as vehicle bridge on constructional feature and vehicle frame is directly rigidly connected.Owing to there is not vibration insulating system, fork truck is maximum to be used for the All-terrain Forklift of military use from travelling about speed 30km/h, and maximum can't realize highway high speed hauling from travelling about speed 40km/h, can not catch up with the gait of march of the 80km/h of general purpose hauling fleet.Compare with fork truck, the constructional feature of independent trailer then be vehicle bridge with vehicle frame between be to link to each other by elastic elements such as steel springs, possesses the favorable damping function, can hang over the quick airdrome maneuver in transport trolley back, can catch up with the gait of march of the 80km/h of general purpose hauling fleet, but independent trailer is general only as transport agent, can't realize fork truck goods and materials loading and unloading operation function.
High speed hauling fork car is according to the characteristics of user demand in conjunction with general fork truck and independent trailer, that is: when operation, high speed hauling fork car is to carry out under lower-speed state, requires vehicle frame and front tyre to be the state of being rigidly connected when pretending industry; When highway high speed hauling, for guaranteeing the good stability that tows, require vehicle frame and the front tyre state that is flexible connection this moment.Therefore, high speed hauling fork car vehicle frame and front tyre should possess rigidity and two kinds of coupled condition of elasticity, and should guarantee that the two states conversion rapidly, reliably.At present, domestic and international various its constructional features of existing fork truck all can not satisfy the needs of highway high speed hauling.
Summary of the invention
The spring suspension self locking mechanism that provides a kind of high speed hauling fork car to use is provided the purpose of this utility model, realizes the action of self-locking mechanism by start the engine, can satisfy the requirement of rigidity, elasticity two aspects, and is simple in structure, has originality, easy to use.
The technical solution of the utility model is achieved in that the utility model comprises a vehicle frame, the front end of vehicle frame is provided with a pair of swing arm, the both sides of swing arm are provided with front-wheel, the rear end of swing arm is fixed with turning cylinder, turning cylinder links to each other with vehicle frame, swing arm links to each other with vehicle frame by half leaf spring again, a locking oil cylinder respectively is set about the front end of vehicle frame, the locking oil cylinder is positioned at the inboard of the vehicle frame track of vehicle frame front end side setting, configuration cylinder sleeve projecting shaft in the vehicle frame track, the cylinder sleeve projecting shaft is crank motion in the vehicle frame track.
The cylinder body front portion of described locking oil cylinder is provided with piston rod, and piston rod links to each other with vehicle frame, and the cylinder body rear portion is provided with pull back spring, and the cylinder body both sides are provided with the cylinder sleeve projecting shaft.
Adopt structure of the present utility model, can realize vehicle frame and front tyre elasticity, two kinds of connection modes of rigidity, and utilize engine starting, flame-out two actions conversion automatically between two kinds of connection modes.Engine starting, during forklift workability, vehicle frame and front tyre are rigidly connected by swing arm; Engine off, during high speed hauling, vehicle frame is connected by swing arm elasticity with front tyre.
Description of drawings
Fig. 1 is the position perspective view of the utility model in car load.
Fig. 2 is the utility model swing arm schematic perspective view.
Fig. 3 is the utility model part perspective view that connects to ground.
Fig. 4 is the utility model locking oil cylinder perspective view.
Below in conjunction with accompanying drawing the utility model is further described in detail.
The specific embodiment
Shown in Fig. 1,2,3, the utility model comprises a swing arm 2, and front-wheel 1, front-wheel wheel-side motor 3, half leaf spring 4, turning cylinder 7, swing arm locking track 9 are set on the swing arm 2; Turning cylinder mounting hole 12, locking oil cylinder 13 are set on the vehicle frame 8; Turning cylinder 7 on the swing arm 2 is connected with vehicle frame 8 by the turning cylinder mounting hole 12 on the vehicle frame 8, and swing arm 2 can rotate around vehicle frame 8 by turning cylinder 7; Half leaf spring, 4 one ends link to each other with swing arm 2, and the other end links to each other with vehicle frame 8, and wheel-side motor 3 is contained on the swing arm 2, and front-wheel 1 is contained on the wheel-side motor 3; Have swing arm locking track 9 on the swing arm 2, have vehicle frame track 6 on the vehicle frame 8; The piston rod 11 of locking oil cylinder 13 links to each other with vehicle frame 8, and the cylinder sleeve of locking oil cylinder 13 utilizes the projecting shaft 5 at two ends to float and is placed on the vehicle frame track 6, can move forward and backward along vehicle frame track 6; Cylinder sleeve projecting shaft 5 moves forward and enters swing arm locking track 9, the rotate rotation of moving axis 7 of swing arm 2 before can pinning.
With reference to shown in Figure 4, sebific duct 10 links to each other with the cylinder sleeve of locking oil cylinder 13, pull back spring 14 is installed in outside the cylinder sleeve of locking oil cylinder 13, cylinder sleeve can be elastic along piston rod 11, the hydraulic oil of the power that protracts after from engine starting, hydraulic oil promotes cylinder sleeve projecting shafts 5 by sebific duct 10 and moves forward, after the power that contracts from the pull back spring 14 of locking oil cylinder 13.
The working process of spring suspension self locking mechanism is as follows:
Start the engine, hydraulic oil flows in the locking oil cylinder 13 by sebific duct 10, the cylinder sleeve projecting shaft 5 of locking oil cylinder 13 moves forward at the track 6 of oil pressure effect lower edge vehicle frame 8, enter in the swing arm locking track 9, the swing arm 2 that at this moment front-wheel 1 is housed loses the swing effect, the moving axis 7 of can not rotating again rotates, and half leaf spring 4 no longer works, and swing arm 2 becomes with vehicle frame 8 and is rigidly connected; Engine off, hydraulic oil in the locking oil cylinder 13 does not have oil pressure, flow back to fuel tank by sebific duct 10, under the effect of pull back spring 14, the cylinder sleeve projecting shaft 5 of locking oil cylinder 13 moves backward along the track 6 of vehicle frame 8, shifts out swing arm locking track 9, the swing arm 2 that at this moment front-wheel 1 is housed works, the moving axis 7 that can rotate rotates, and half leaf spring 4 works, and swing arm 2 becomes elasticity with vehicle frame 8 and is connected.

Claims (2)

1, spring suspension self locking mechanism, comprise a vehicle frame (8), the front end of vehicle frame (8) is provided with a pair of swing arm (2), the both sides of swing arm (2) are provided with front-wheel (1), it is characterized in that, the rear end of swing arm (2) is fixed with turning cylinder (7), turning cylinder (7) links to each other with vehicle frame (8), swing arm (2) links to each other with vehicle frame (8) by half leaf spring (4) again, a locking oil cylinder (13) respectively is set about the front end of vehicle frame (8), locking oil cylinder (13) is positioned at the inboard of the vehicle frame track (6) of vehicle frame (8) front end side setting, configuration cylinder sleeve projecting shaft (5) in the vehicle frame track (6), and cylinder sleeve projecting shaft (5) is crank motion in vehicle frame track (6).
2, spring suspension self locking mechanism according to claim 1, it is characterized in that, cylinder body front portion on the described locking oil cylinder (13) is provided with piston rod (11), piston rod (11) links to each other with vehicle frame (8), the cylinder body rear portion is provided with pull back spring (14), and the cylinder body both sides are provided with cylinder sleeve projecting shaft (5).
CN 200620078604 2006-03-20 2006-03-20 Self-locking mechanism of elastic suspension Expired - Fee Related CN2871266Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620078604 CN2871266Y (en) 2006-03-20 2006-03-20 Self-locking mechanism of elastic suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620078604 CN2871266Y (en) 2006-03-20 2006-03-20 Self-locking mechanism of elastic suspension

Publications (1)

Publication Number Publication Date
CN2871266Y true CN2871266Y (en) 2007-02-21

Family

ID=37739614

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620078604 Expired - Fee Related CN2871266Y (en) 2006-03-20 2006-03-20 Self-locking mechanism of elastic suspension

Country Status (1)

Country Link
CN (1) CN2871266Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100368218C (en) * 2006-03-20 2008-02-13 中国人民解放军总后勤部建筑工程研究所 Spring suspension self locking mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100368218C (en) * 2006-03-20 2008-02-13 中国人民解放军总后勤部建筑工程研究所 Spring suspension self locking mechanism

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070221