CN201736900U - Elevator for engineering vehicles - Google Patents

Elevator for engineering vehicles Download PDF

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Publication number
CN201736900U
CN201736900U CN2010202378591U CN201020237859U CN201736900U CN 201736900 U CN201736900 U CN 201736900U CN 2010202378591 U CN2010202378591 U CN 2010202378591U CN 201020237859 U CN201020237859 U CN 201020237859U CN 201736900 U CN201736900 U CN 201736900U
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CN
China
Prior art keywords
ladder
cylinder
engineering truck
autostairs
hoist cylinder
Prior art date
Application number
CN2010202378591U
Other languages
Chinese (zh)
Inventor
贺电
张友林
杨敏
Original Assignee
三一重工股份有限公司
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 三一重工股份有限公司 filed Critical 三一重工股份有限公司
Priority to CN2010202378591U priority Critical patent/CN201736900U/en
Application granted granted Critical
Publication of CN201736900U publication Critical patent/CN201736900U/en

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Abstract

The utility model discloses an elevator for an engineering vehicles, comprising an elevator body (1), a movable elevator (2) and a lifting oil cylinder (3), wherein the elevator body (1) is fixed on engineering vehicle frame, and the lifting oil cylinder (3) is arranged on the elevator body (1); and the movable elevator (2) and the elevator body (1) are glidingly connected and are driven by the lifting oil cylinder (3). The elevator for engineering vehicles can effectively ensure the departure angle of the engineering vehicles in running and has the advantages of stability, reliability, conforming to ergonomics structure, convenient boarding elevator, high automation degree and safety.

Description

The companion ladder that is used for engineering truck
Technical field
The utility model relates to the attendant equipment of engineering truck, is specifically related to a kind of improvement of engineering truck ladder.
Background technology
Existing engineering truck ladder generally is installed in the rear portion of engineering truck.Departure angle in order to guarantee to walk, the ladder of the next stage of ladder body is general liftoff higher, when engineering truck by outrigger support after on the ground, operating personal will be climbed up vehicle body by ladder and be required great effort very much, does not meet ergonomic structure; Also have in order to improve the prior art of this situation, by under the next stage pedal of ladder, hanging rope ladder, the departure angle when though rope ladder can guarantee engineering vehicle walking, but operating personal is when cat ladder, the rigidity ladder is easily run into and injured in the shank front portion, and rocking of rope ladder easily makes climbing person fall down simultaneously.
The utility model content
The utility model is at the defective of above-mentioned prior art, provide a kind of can effectively guarantee engineering vehicle walking the time departure angle, reliable and stable, meet ergonomic structure, make things convenient for ascending stair, degree of automation height, the safe and reliable companion ladder that is used for engineering truck.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of companion ladder that is used for engineering truck, comprise the ladder body that is fixed on the engineering truck vehicle frame, it also comprises autostairs and hoist cylinder, described hoist cylinder is located on the ladder body, and described autostairs and ladder body sliding block joint are also driven by described hoist cylinder.
As further improvement of the utility model:
The rear side of described autostairs is provided with connecting portion, and the cylinder body of described hoist cylinder is articulated on the ladder body, and the piston rod and the connecting portion of described hoist cylinder are hinged;
The cylinder diameter of described hoist cylinder is littler than the cylinder diameter of engineering truck support oil cylinder.
The rod chamber of described hoist cylinder links to each other by the hydraulic circuit of oil pipe with the engineering truck support oil cylinder respectively with rodless cavity;
Described oil pipe is provided with hydraulic lock and limiting valve;
Described autostairs is provided with one-level pedal at least, is provided with the preset clearance that prevents that pin from being crushed between the upper class pedal of the lower end of described ladder body and autostairs;
Described ladder body is provided with sliding sleeve, and described autostairs is provided with slide bar, and described jack rod sleeve is located in the described sliding sleeve, and described sliding sleeve is arranged along the direction of tilt of described ladder body.
The utlity model has following advantage: be provided with the autostairs that drives by hoist cylinder in the sliding sleeve of the utility model by the ladder body, integral body is rigid construction, therefore the departure angle in the time of can effectively guaranteeing engineering vehicle walking, reliable and stable, operating personal climbs up the ladder lighter, meets ergonomic structure.Therefore hoist cylinder links to each other with the hydraulic circuit of engineering truck support oil cylinder, can follow opening of supporting leg folding and realize that auto-folder opens the degree of automation height; The cylinder diameter of hoist cylinder is littler than the cylinder diameter of engineering truck support oil cylinder, and the lifting action of hoist cylinder is all fast than support oil cylinder, can guarantee that supporting leg rises from the preceding autostairs that puts in place and launches, and autostairs was regained before supporting leg was regained and put in place, did not influence the departure angle of driving.Oil pipe is provided with hydraulic lock and limiting valve, can effectively guarantee engineering truck when walking autostairs can not stretch out, prevent that the support oil cylinder oil pressure is too high and cause damaging hoist cylinder, more safe and reliable; The preset clearance that is provided with between the upper class pedal of the lower end of ladder body and autostairs can prevent that accident from crushing, sliding sleeve is arranged along the direction of tilt of ladder body, therefore autostairs can keep the angle of inclination identical with the ladder body, can prevent the shank of damaging, and is more safe and reliable.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 is the side-looking structural representation of the utility model embodiment;
Fig. 3 is the control principle scheme drawing of the hoist cylinder of the utility model embodiment.
The specific embodiment
As depicted in figs. 1 and 2, the companion ladder that is used for engineering truck of the utility model embodiment comprises the ladder body 1 that is fixed on the vehicle frame, it also comprises autostairs 2 and hoist cylinder 3, and hoist cylinder 3 is located on the ladder body 1, and autostairs 2 drives with ladder body 1 sliding block joint and by hoist cylinder 3.
In the present embodiment, the rear side of autostairs 2 is provided with connecting portion 22, and the cylinder body 31 of hoist cylinder 3 is articulated on the ladder body 1, and the piston rod 31 of hoist cylinder 3 is hinged with connecting portion 22.Autostairs 2 is provided with one-level pedal 21, be provided with preset clearance 4 between the pedal 21 of the lower end of ladder body 1 and autostairs 2, preset clearance 4 is the distance between when all drawing in and ladder body 1 lower end of autostairs 2, preset clearance 4 will stay enough instep height, has the people that pin is put in the time of can preventing to receive ladder and crushes.Ladder body 1 is provided with sliding sleeve 13; autostairs 2 is provided with and sliding sleeve 13 corresponding slide bars 23; sliding sleeve 13 is arranged along the direction of tilt of ladder body 1; therefore after the ascending stair personnel set foot on the pedal 21 of autostairs 2; also can keep certain safety distance between the pedal of the lower end of shank and ladder body 1, can effectively protect ascending stair personnel's shank not wounded.
As shown in Figure 3, the support oil cylinder of engineering truck is made up of left back support oil cylinder 71, right back support oil cylinder 72, links to each other with working connection P, the T of engineering truck with second control cock 82 by first control cock 81 respectively.Hoist cylinder 3 in the present embodiment is made up of left hoist cylinder 33 and right hoist cylinder 34, the rod chamber of left side hoist cylinder 33 links to each other by the oil circuit of oil pipe 35 with left back support oil cylinder 71 respectively with rodless cavity, and the rod chamber of right hoist cylinder 34 links to each other by the oil circuit of oil pipe 35 with right back support oil cylinder 72 respectively with rodless cavity.Use for convenience in the present embodiment, the cylinder diameter of left side hoist cylinder 33 and right hoist cylinder 34 is than the left back support oil cylinder 71 of engineering truck, the cylinder diameter of right back support oil cylinder 72 is little, the lifting/lowering action of left side hoist cylinder 33 and right hoist cylinder 34 is than left back support oil cylinder 71, right back support oil cylinder 72 is fast, thereby can guarantee that supporting leg rises from the preceding autostairs 2 that puts in place and launched, autostairs 3 had been regained before supporting leg was regained and put in place, do not influence the departure angle of driving, be left back support oil cylinder 71 opening time of left hoist cylinder 33 and right hoist cylinder 34 in the present embodiment, about 70% of 72 opening times of right back support oil cylinder.Oil pipe 35 is provided with hydraulic lock 5 and limiting valve 6; after autostairs 2 draws in; can autostairs 2 be locked on the ladder body 1 by hydraulic lock 5; can guarantee effectively that engineering truck autostairs 2 when walking can not stretch out; limiting valve 6 can reduce on left back support oil cylinder 71, right back support oil cylinder 72 oil circuits high oil pressure to the influence of left hoist cylinder 33 and right hoist cylinder 34; can play the effect of left hoist cylinder 33 of effective protection and right hoist cylinder 34, thereby improve safety, prolonged service life of left hoist cylinder 33 and right hoist cylinder 34.
When engineering truck is started working, the left back support oil cylinder 71 of engineering truck, right back support oil cylinder 72 are opened left back supporting leg, right back supporting leg respectively, because the cylinder diameter of left hoist cylinder 33 and right hoist cylinder 34 is littler than the cylinder diameter of the left back support oil cylinder 71 of engineering truck, right back support oil cylinder 72, left side hoist cylinder 33 and right hoist cylinder 34 launched autostairs 2 to reduce before supporting leg is opened, and can work by handled easily personnel rapid deployment; When engineering truck after hours, the left back support oil cylinder 71 of engineering truck, right back support oil cylinder 72 draw left back supporting leg, right back supporting leg in respectively, because the cylinder diameter of left hoist cylinder 33 and right hoist cylinder 34 is littler than the cylinder diameter of the left back support oil cylinder 71 of engineering truck, right back support oil cylinder 72, left side hoist cylinder 33 and right hoist cylinder 34 were packed up autostairs 2 raisings before supporting leg is opened, thereby can guarantee the departure angle of engineering truck, can make things convenient for navigating mate to drive engineering truck fast and leave.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be understood that; for those skilled in the art; some improvements and modifications not breaking away under the utility model principle prerequisite for example change pedal number of autostairs 2 or the like, and these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (8)

1. companion ladder that is used for engineering truck, comprise the ladder body (1) that is fixed on the engineering truck vehicle frame, it is characterized in that: it also comprises autostairs (2) and hoist cylinder (3), described hoist cylinder (3) is installed on the ladder body (1), and described autostairs (2) drives with ladder body (1) sliding block joint and by described hoist cylinder (3).
2. the companion ladder that is used for engineering truck according to claim 1, it is characterized in that: the rear side of described autostairs (2) is provided with connecting portion (22), the cylinder body (31) of described hoist cylinder (3) is articulated on the ladder body (1), and the piston rod (32) of described hoist cylinder (3) is hinged with connecting portion (22).
3. the companion ladder that is used for engineering truck according to claim 2 is characterized in that: the cylinder diameter of described hoist cylinder (3) is littler than the cylinder diameter of engineering truck support oil cylinder.
4. the companion ladder that is used for engineering truck according to claim 3 is characterized in that: the rod chamber of described hoist cylinder (3) links to each other with the hydraulic circuit of engineering truck support oil cylinder by oil pipe (35) respectively with rodless cavity.
5. the companion ladder that is used for engineering truck according to claim 4 is characterized in that: described oil pipe (35) is provided with hydraulic lock (5) and limiting valve (6).
6. according to claim 1 or 2 or 3 or the 4 or 5 described companion ladders that are used for engineering truck, it is characterized in that: described autostairs (2) is provided with one-level pedal (21) at least, is provided with the preset clearance (4) that prevents pin and crushed between the upper class pedal (21) of the lower end of described ladder body (1) and autostairs (2).
7. according to claim 1 or 2 or 3 or the 4 or 5 described companion ladders that are used for engineering truck, it is characterized in that: described ladder body (1) is provided with sliding sleeve (13), described autostairs (2) is provided with slide bar (23), described slide bar (23) is sheathed in the described sliding sleeve (13), and described sliding sleeve (13) is arranged along the direction of tilt of described ladder body (1).
8. the companion ladder that is used for engineering truck according to claim 6, it is characterized in that: described ladder body (1) is provided with sliding sleeve (13), described autostairs (2) is provided with slide bar (23), described slide bar (23) is sheathed in the described sliding sleeve (13), and described sliding sleeve (13) is arranged along the direction of tilt of described ladder body (1).
CN2010202378591U 2010-06-25 2010-06-25 Elevator for engineering vehicles CN201736900U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202378591U CN201736900U (en) 2010-06-25 2010-06-25 Elevator for engineering vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202378591U CN201736900U (en) 2010-06-25 2010-06-25 Elevator for engineering vehicles

Publications (1)

Publication Number Publication Date
CN201736900U true CN201736900U (en) 2011-02-09

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Application Number Title Priority Date Filing Date
CN2010202378591U CN201736900U (en) 2010-06-25 2010-06-25 Elevator for engineering vehicles

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CN (1) CN201736900U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2466884C2 (en) * 2011-02-10 2012-11-20 Открытое акционерное общество "Красноярский завод лесного машиностроения" (ОАО "Краслесмаш") Staircase for cab of transport facility, preferably timber industry vehicle
CN104627080A (en) * 2015-03-02 2015-05-20 中国重汽集团济南动力有限公司 Boarding system of large mine car
CN105501128A (en) * 2014-10-09 2016-04-20 马尼托意大利有限责任公司 Apparatus for gaining access to lift vehicles
CN107021022A (en) * 2017-02-21 2017-08-08 长久(滁州)专用汽车有限公司 A kind of compound cat ladder of central axle vehicle
CN108202672A (en) * 2016-12-16 2018-06-26 大众汽车有限公司 For the step of difference in height to be crossed by personnel for motor vehicle and/or trailer
CN109057699A (en) * 2018-08-31 2018-12-21 长久(滁州)专用汽车有限公司 A kind of main body is the sedan-chair fortune vehicle ladder of several font structures

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2466884C2 (en) * 2011-02-10 2012-11-20 Открытое акционерное общество "Красноярский завод лесного машиностроения" (ОАО "Краслесмаш") Staircase for cab of transport facility, preferably timber industry vehicle
CN105501128A (en) * 2014-10-09 2016-04-20 马尼托意大利有限责任公司 Apparatus for gaining access to lift vehicles
CN104627080A (en) * 2015-03-02 2015-05-20 中国重汽集团济南动力有限公司 Boarding system of large mine car
CN108202672A (en) * 2016-12-16 2018-06-26 大众汽车有限公司 For the step of difference in height to be crossed by personnel for motor vehicle and/or trailer
CN107021022A (en) * 2017-02-21 2017-08-08 长久(滁州)专用汽车有限公司 A kind of compound cat ladder of central axle vehicle
CN109057699A (en) * 2018-08-31 2018-12-21 长久(滁州)专用汽车有限公司 A kind of main body is the sedan-chair fortune vehicle ladder of several font structures

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C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD.

Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD

Effective date: 20130506

TR01 Transfer of patent right

Effective date of registration: 20130506

Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city

Patentee after: SANY Automobile Manufacturing Co., Ltd.

Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan, Changsha

Patentee before: Sanyi Heavy Industry Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110209

Termination date: 20170625

CF01 Termination of patent right due to non-payment of annual fee