CN201350859Y - Lifting mechanism for dump truck - Google Patents
Lifting mechanism for dump truck Download PDFInfo
- Publication number
- CN201350859Y CN201350859Y CNU2009200837133U CN200920083713U CN201350859Y CN 201350859 Y CN201350859 Y CN 201350859Y CN U2009200837133 U CNU2009200837133 U CN U2009200837133U CN 200920083713 U CN200920083713 U CN 200920083713U CN 201350859 Y CN201350859 Y CN 201350859Y
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- China
- Prior art keywords
- hinged
- lifting
- dumping car
- dump truck
- hydraulic oil
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- Expired - Fee Related
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Abstract
A lifting mechanism for dump truck comprises a 7 connecting-bar moving chain mechanism composed of a dump truck auxiliary frame, a dump truck large tank, a lifting arm, two hydraulic oil cylinders and four pull rods, wherein the hydraulic oil cylinder and the piston rods of the hydraulic oil cylinders are driving parts; the four pull rods are divided into two groups and two pull rods in one group are opposite to the two pull rods in the other group, two hydraulic oil cylinders are respectively distributed on both sides of the dump truck auxiliary frame, one end of the lifting arm is hinged at the bottom of the dump truck large tank; two pull rods in each group are hinged with each other, and then one end of the hinged pull rods is hinged with the other end of the lifting arm and the other end is hinged with the dump truck auxiliary frame; the cylinders of the hydraulic oil cylinders are hinged with the auxiliary frame, the heat part of piston rod of each hydraulic oil cylinder is respectively hinged with the lifting arm. The lifting mechanism integrates direct lifting with connecting rod mechanism lifting to a whole and combines the two advantages; the pressure of hydraulic system is small; the 7 connecting-rod moving chain mechanism replaces the connecting rod lifting mechanism in prior art so that the lifting has the best rigidity and stability, also has low manufacturing cost, is economical and practical.
Description
Technical field
The utility model relates to a kind of lifting mechanism that is used for dumping car.
Background technology
Existing tipper lifting mechanism is divided into two kinds: 1, directly lifting; 2, connecting rod mechanism lifting.Directly the advantage of lifting is that hydraulic system pressure is little, and lifting is steady, and shortcoming is that hydraulic ram and piston rod stroke are long, the cost height.Connecting rod mechanism lifting advantage is that cost is low, and shortcoming is that hydraulic system pressure is big, and oil pump and hydraulic seal often damage, and makes the mechanism can not lifting.
Summary of the invention
The utility model provides that a kind of hydraulic system pressure is less, vehicle hoisting good stability, low, the economical and practical lifting mechanism that is used for dumping car of cost.
A kind of lifting mechanism that is used for dumping car is characterized in that: form 7 link work chain mechanisms by dumping car subframe, the big case of dumping car, lift arm, two hydraulic rams, four pull bars, the piston rod of described hydraulic ram and hydraulic ram is a driving link; Four pull bars correspondence in twos are divided into two groups, and two hydraulic rams are arranged in the both sides of dumping car subframe, and an end of lift arm is hinged on the big case of dumping car bottom; After two pull bars of every group of pull bar were hinged, the other end of an end and lift arm was hinged, and the other end is hinged on the dumping car subframe; The cylinder barrel of hydraulic ram is hinged on the subframe, and the head of the piston rod of each hydraulic ram is hinged on the lift arm respectively.
Further qualification to such scheme is; When the lifting angle of the big case of dumping car certain in 16 ° of-30 ° of (actual angle is decided by different automobile types) scopes is a bit, two pull bar in-lines of every group of pull bar.
Beneficial effect: direct lifting of this lifting mechanism collection and connecting rod mechanism lifting, two big advantages, its hydraulic system pressure is less, at the lifting initial stage, when directly the big case of dumping car being given rise to 16 °-30 ° (actual angle is decided by different automobile types) by the piston rod of hydraulic ram and hydraulic ram, goods begins to dump, the load of big case begins to alleviate, the connecting rod that be hinged this moment is straight line, 7 link work chain mechanisms continue lifting afterwards, lift arm is with respect to the big case setting in motion of dumping car, and the stroke of hydraulic ram obtains amplifying, and puts in place until the big case lifting of dumping car.This mechanism substitutes existing connecting rod lifting mechanism with 7 link work chain mechanisms, rigidity, stable best, and cost is low, and is economical and practical.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the constitution diagram of the big case of dumping car car when falling.
Fig. 4 is the constitution diagram of the big case of direct lifting dumping car car to certain angle.
The specific embodiment
In conjunction with description shown in Figure 1 principle of the present utility model: lifting mechanism is by dumping car subframe 7, the big case 1 of automobile, lift arm 2, pull bar 3, pull bar 4, hydraulic ram 6, piston rod 5 are under the connection of kinematic pair, form a seven-link assembly kinematic link mechanism, its mechanism principle is as follows:
Movable part n=6, subframe are mounting article, the lower pair number P
L=8, driving link is that hydraulic ram and piston rod are 2.Relational expression according to mechanism's formation:
Driving link number=degree of freedom number F=3n-2P
L, i.e. F=3 * 6-2 * 8=2
Therefore, 7 kinematic link mechanism establishments that member forms under the connection of kinematic pair thus, driving link is hydraulic ram and piston rod.
In conjunction with shown in Figure 2, it is as follows to describe structure of the present utility model: a kind of lifting mechanism that is used for dumping car, it is characterized in that: form 7 link work chain mechanisms by dumping car subframe 7, the big case 1 of dumping car, lift arm 2, two hydraulic rams, four pull bars, the piston rod of described hydraulic ram and hydraulic ram is a driving link; Four pull bars correspondence in twos are divided into two groups, and hydraulic ram 14, hydraulic ram 13 are arranged in the both sides of dumping car subframe 7, and an end of lift arm 2 is hinged on the big case of dumping car 1 bottom; Pull bar 11,12 is one group, and after being hinged, the other end of an end and lift arm 2 is hinged, and the other end is hinged on the dumping car subframe 7; Pull bar 9,10 is one group, and after being hinged, the other end of an end and lift arm 2 is hinged, and the other end is hinged on the dumping car subframe 7; The cylinder barrel of hydraulic ram 13,14 is hinged on the dumping car subframe 7, and the head of the piston rod 8 of hydraulic ram 13, the piston rod 15 of hydraulic ram 14 is hinged on respectively on the lift arm 2.
Be the constitution diagram of the big case of dumping car when falling as shown in Figure 3.
Be the constitution diagram of the big case of direct lifting dumping car as shown in Figure 4 to certain angle, this moment dumping car big case the lifting angle [alpha] in 16 ° of-30 ° of (actual angle is decided by different automobile types) scopes, two pull bar in-lines.Afterwards, continue lifting, 7 link work chain mechanisms make the stroke of hydraulic ram obtain amplifying.The length of the big case of dumping car not simultaneously, the lifting angle [alpha] changes in 16 °-30 ° scope.
Claims (2)
1, a kind of lifting mechanism that is used for dumping car is characterized in that: form 7 link work chain mechanisms by dumping car subframe, the big case of dumping car, lift arm, two hydraulic rams, four pull bars, the piston rod of described hydraulic ram and hydraulic ram is a driving link; Four pull bars correspondence in twos are divided into two groups, and two hydraulic rams are arranged in the both sides of dumping car subframe, and an end of lift arm is hinged on the big case of dumping car bottom; After two pull bars of every group of pull bar were hinged, the other end of an end and lift arm was hinged, and the other end is hinged on the dumping car subframe; The cylinder barrel of hydraulic ram is hinged on the subframe, and the head of the piston rod of each hydraulic ram is hinged on the lift arm respectively.
2, a kind of lifting mechanism that is used for dumping car according to claim 1 is characterized in that: when the lifting angle of the big case of automobile certain in 16 ° of-30 ° of scopes is a bit, and two pull bar in-lines of every group of pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200837133U CN201350859Y (en) | 2009-02-09 | 2009-02-09 | Lifting mechanism for dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200837133U CN201350859Y (en) | 2009-02-09 | 2009-02-09 | Lifting mechanism for dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201350859Y true CN201350859Y (en) | 2009-11-25 |
Family
ID=41374244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200837133U Expired - Fee Related CN201350859Y (en) | 2009-02-09 | 2009-02-09 | Lifting mechanism for dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201350859Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642492A (en) * | 2012-04-12 | 2012-08-22 | 燕山大学 | Self-unloading device capable of realizing bilateral unloading |
| CN105109393A (en) * | 2015-08-21 | 2015-12-02 | 王宁 | Unloading devices for off-highway self-dumping car |
| CN109132590A (en) * | 2018-10-12 | 2019-01-04 | 山东建筑大学 | A kind of dump device |
| CN111232879A (en) * | 2020-03-19 | 2020-06-05 | 柳州长虹数控机床有限责任公司 | Self-locking type amplifying lifting mechanism |
-
2009
- 2009-02-09 CN CNU2009200837133U patent/CN201350859Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642492A (en) * | 2012-04-12 | 2012-08-22 | 燕山大学 | Self-unloading device capable of realizing bilateral unloading |
| CN102642492B (en) * | 2012-04-12 | 2013-12-18 | 燕山大学 | Self-unloading device capable of realizing bilateral unloading |
| CN105109393A (en) * | 2015-08-21 | 2015-12-02 | 王宁 | Unloading devices for off-highway self-dumping car |
| CN109132590A (en) * | 2018-10-12 | 2019-01-04 | 山东建筑大学 | A kind of dump device |
| CN109132590B (en) * | 2018-10-12 | 2020-06-02 | 山东建筑大学 | Dumping device |
| CN111232879A (en) * | 2020-03-19 | 2020-06-05 | 柳州长虹数控机床有限责任公司 | Self-locking type amplifying lifting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20091125 Termination date: 20100209 |