CN102838052B - Upper pressing type shear shank mechanism - Google Patents

Upper pressing type shear shank mechanism Download PDF

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Publication number
CN102838052B
CN102838052B CN201210341250.2A CN201210341250A CN102838052B CN 102838052 B CN102838052 B CN 102838052B CN 201210341250 A CN201210341250 A CN 201210341250A CN 102838052 B CN102838052 B CN 102838052B
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China
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sides
hinged
platform
support arm
mounting plate
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CN201210341250.2A
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CN102838052A (en
Inventor
张威
张雪飞
王立文
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Civil Aviation University of China
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Civil Aviation University of China
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Abstract

The invention provides an upper pressing type shear shank mechanism which comprises an upper platform, two left supporting arms, two right supporting arms, two hydraulic cylinders and a lower platform, wherein the lower platform is arranged above the lower platform; the lower ends of the two right supporting arms are respectively hinged to two sides on the surface at the left end of the lower platform; idler wheels are arranged on the front side and the rear side at the upper end of each right supporting arm; the upper ends of the two left supporting arms are hinged to two sides on the bottom surface at the left end of the upper platform; the idler wheels are arranged on two sides at the lower end of each left supporting arm; one left supporting arm is integrally hinged to the middle of one right supporting arm; the bottom surfaces of two hydraulic cylinder bodies are respectively hinged to the upper parts of the two right supporting arms; and the external ends of piston rods are respectively hinged to the two sides in the middle of the bottom surface of the upper platform. According to the upper pressing type shear shank mechanism provided by the invention, the hydraulic cylinders are configured at the upper parts of the right supporting arms, therefore, the hydraulic cylinders are short in route; and moreover, the routes of the hydraulic cylinders are increased along with the raise of the hoisting height of the upper platform during hoisting, and the hydraulic cylinders are returned when the height of the upper platform is increased after reaching a certain height, so that high utilization rate of the hydraulic cylinders can be achieved.

Description

Upper pressure type shear shank mechanism
Technical field
The invention belongs to mechanical equipment technical field, particularly relate to a kind of upper pressure type shear shank mechanism.
Background technology
Jian Sheng mechanism is applied in large quantities on the airport special equipments such as food conveyor, platform truck, mobile connecting bridge and portable control tower and other common apparatus.But there is following point at present conventional Jian Sheng mechanism: the hydraulic actuating cylinder on it can only do single way motion, and therefore hydraulic actuating cylinder degree of utilization is lower, and meeting and cause certain space waste.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide one to have doublestroke, hydraulic actuating cylinder degree of utilization is higher, takes up room less, and safety performance better goes up pressure type shear shank mechanism.
In order to achieve the above object, upper pressure type shear shank mechanism provided by the invention comprises upper mounting plate, two left support arms, two right support arms, two hydraulic actuating cylinders and lower platforms; Wherein lower platform is horizontally disposed with; Upper mounting plate is arranged on the top of lower platform in the mode parallel with lower platform; The lower end of two right support arms is hinged on the position, both sides, left end surface of lower platform respectively, and before and after the upper end of the right support arm of every root, position, both sides is separately installed with a roller that can horizontally slip on upper mounting plate right-hand member bottom surface; The upper end of two left support arms is hinged on the position, both sides, left end bottom surface of upper mounting plate respectively, the position, both sides, lower end of the left support arm of every root is separately installed with a roller that can horizontally slip on lower platform right end face, and the middle part of a left support arm and a right support arm being positioned at the same side with it is hinged; The cylinder body bottom surface of two hydraulic actuating cylinders is hinged on the top of two right support arms respectively, both sides in the middle part of the bottom surface that the piston rod outer end being positioned at upper end is hinged on upper mounting plate respectively, and cylinder interior is connected with hydraulic efficiency pressure system by pipeline.
Described left support arm is equal with the length of right support arm.
Hydraulic actuating cylinder as lifting power device is configured in right support arm top by upper pressure type shear shank mechanism provided by the invention, and namely near upper mounting plate place, therefore the stroke of hydraulic actuating cylinder is short.In addition, in lifting process, hydraulic cylinder travel first increases with the lift height increase of upper mounting plate, and then after certain altitude, do return motion along with the height of upper mounting plate increases hydraulic actuating cylinder, therefore the degree of utilization of hydraulic actuating cylinder is very high.In addition, in basis, pressure type shear shank mechanism also has that structure design is simple, rationally, take up room little, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is upper pressure type shear shank mechanism provided by the invention block diagram.
Fig. 2 is upper pressure type shear shank structure longitudinal sectional view provided by the invention.
Detailed description of the invention
As shown in Figure 1 and Figure 2, upper pressure type shear shank mechanism provided by the invention comprises the left support arm of upper mounting plate 1, two 2, two right support arms, 3, two hydraulic actuating cylinders 4 and lower platform 5; Wherein lower platform 5 is horizontally disposed with; Upper mounting plate 1 is arranged on the top of lower platform 5 in the mode parallel with lower platform 5; The lower end of two right support arms 3 is hinged on the position, both sides, left end surface of lower platform 5 respectively, and before and after the upper end of the right support arm 3 of every root, position, both sides is separately installed with a roller 6 that can horizontally slip on upper mounting plate 1 right-hand member bottom surface; The upper end of two left support arms 2 is hinged on the position, both sides, left end bottom surface of upper mounting plate 1 respectively, the position, both sides, lower end of the left support arm 2 of every root is separately installed with a roller 7 that can horizontally slip on lower platform 5 right end face, and the middle part of a left support arm 2 and a right support arm 3 being positioned at the same side with it is hinged; The cylinder body bottom surface of two hydraulic actuating cylinders 4 is hinged on the top of two right support arms 3 respectively, both sides in the middle part of the bottom surface that the piston rod outer end being positioned at upper end is hinged on upper mounting plate 1 respectively, and cylinder interior is connected with hydraulic efficiency pressure system by pipeline.
Described left support arm 2 is equal with the length of right support arm 3.
Now upper pressure type shear shank institution staff process provided by the invention is described below: first will treat the such as food conveyor of lifting, platform truck, the airport special equipments such as mobile connecting bridge and portable control tower are placed on the upper mounting plate 1 of pressure type shear shank mechanism on this, then the hydraulic oil of self-hydraulic system passes into the bottom of hydraulic actuating cylinder 4 upper cylinder body by pipeline in the future, thus make piston rod protruding, under the effect of piston rod, the roller 7 of left support arm 2 lower end will be moved to the left respectively with the roller 6 of right support arm 3 upper end together with the surface of lower platform 5 is on the bottom surface of upper mounting plate 1, the left support arm of result 2 and right support arm 3 are drawn close gradually, thus make upper mounting plate 1 and on treat that lifting thing raises gradually, reach the object of lifting object thus.

Claims (2)

1. a upper pressure type shear shank mechanism, is characterized in that: described upper pressure type shear shank mechanism comprises upper mounting plate (1), two left support arms (2), two right support arms (3), two hydraulic actuating cylinders (4) and lower platforms (5); Wherein lower platform (5) is horizontally disposed with; Upper mounting plate (1) is arranged on the top of lower platform (5) in the mode parallel with lower platform (5); The lower end of two right support arms (3) is hinged on the position, both sides, left end surface of lower platform (5) respectively, and before and after the upper end of the right support arm of every root (3), position, both sides is separately installed with a roller (6) that can horizontally slip on upper mounting plate (1) right-hand member bottom surface; The upper end of two left support arms (2) is hinged on the position, both sides, left end bottom surface of upper mounting plate (1) respectively, the position, both sides, lower end of the left support arm of every root (2) is separately installed with a roller (7) that can horizontally slip on lower platform (5) right end face, and the middle part of a left support arm (2) and a right support arm (3) being positioned at the same side with it is hinged; The cylinder body bottom surface of two hydraulic actuating cylinders (4) is hinged on the top of two right support arms (3) respectively, both sides in the middle part of the bottom surface that the piston rod outer end being positioned at upper end is hinged on upper mounting plate (1) respectively, and cylinder interior is connected with hydraulic efficiency pressure system by pipeline.
2. upper pressure type shear shank mechanism according to claim 1, is characterized in that: described left support arm (2) is equal with the length of right support arm (3).
CN201210341250.2A 2012-09-14 2012-09-14 Upper pressing type shear shank mechanism Active CN102838052B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210341250.2A CN102838052B (en) 2012-09-14 2012-09-14 Upper pressing type shear shank mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210341250.2A CN102838052B (en) 2012-09-14 2012-09-14 Upper pressing type shear shank mechanism

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CN102838052A CN102838052A (en) 2012-12-26
CN102838052B true CN102838052B (en) 2015-03-04

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103232007A (en) * 2013-05-03 2013-08-07 昆山市大昌机械制造有限公司 Lifting machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082415A (en) * 1988-08-04 1992-01-21 Takeshi Hayashi Fork lift style loading apparatus
CN2135563Y (en) * 1992-09-12 1993-06-09 周发财 Lifting device for locomotive working stand
CN201433075Y (en) * 2009-07-21 2010-03-31 河北科技大学 Hydraulic lift platform
CN101746691A (en) * 2010-01-21 2010-06-23 上海攀杰机械有限公司 Scissors-type accessible elevating platform
CN202785475U (en) * 2012-09-14 2013-03-13 中国民航大学 Up-thrust shear shank mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1087290A (en) * 1996-09-11 1998-04-07 Suzutec Co Ltd Lift device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082415A (en) * 1988-08-04 1992-01-21 Takeshi Hayashi Fork lift style loading apparatus
CN2135563Y (en) * 1992-09-12 1993-06-09 周发财 Lifting device for locomotive working stand
CN201433075Y (en) * 2009-07-21 2010-03-31 河北科技大学 Hydraulic lift platform
CN101746691A (en) * 2010-01-21 2010-06-23 上海攀杰机械有限公司 Scissors-type accessible elevating platform
CN202785475U (en) * 2012-09-14 2013-03-13 中国民航大学 Up-thrust shear shank mechanism

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