CN102991443A - Engineering machine and protection device - Google Patents
Engineering machine and protection device Download PDFInfo
- Publication number
- CN102991443A CN102991443A CN 201210518110 CN201210518110A CN102991443A CN 102991443 A CN102991443 A CN 102991443A CN 201210518110 CN201210518110 CN 201210518110 CN 201210518110 A CN201210518110 A CN 201210518110A CN 102991443 A CN102991443 A CN 102991443A
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- China
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- mounting bracket
- guard rail
- vehicle frame
- protective device
- push rod
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Abstract
The invention provides an engineering machine and a protection device. The protection device is arranged on a car frame, and comprises a protective fence and a shift device; the protective fence is movably connected with the car frame; and the shift device is connected between the protective fence and the car frame, and is used for changing a position of the protective fence relative to the car frame, so that an approach angle and/or a departure angle of a vehicle is further changed. The protection device provided by the invention is in a working state or a contraction state by driving the protective fence to rotate for a certain angle through an air cylinder or an oil cylinder, or changing a position of mounting a push rod, so that a distance of the protection device and the ground is adjustable. Therefore, not only can the requirements of laws and regulations be met when an automobile crane is driven in a road, but also the passing requirement of a special road condition can be met.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of construction machinery and equipment and protective device.
Background technology
According among the rules GB26511 among the front bottom requirement of shelter of commercial vehicle/comm..vehicle and the GB11567.2 to the rear lower requirement of shelter of automobile and trailer, car hosit need to be installed front underrun protection device and protecting device for rear lower part.The front protective device of existing vehicle dress, the mounting means of protecting device for rear lower part are to adopt the plain bolt connection or directly be welded on the vehicle frame, but for car hosit, the operation of need to travelling through be everlasting building site or mine, these local road conditions are relatively poor, crossing ability is required height, and common fixed type front underrun protection device, protecting device for rear lower part can affect its crossing ability.
Summary of the invention
In view of this, the present invention is intended to propose a kind of construction machinery and equipment and protective device, affects the problem of crossing ability to solve the fixed type protective device.
For achieving the above object, technical scheme of the present invention is achieved in that
On the one hand, the invention provides a kind of protective device, be arranged on the vehicle frame, described protective device comprises guard rail and displacement device, described guard rail is movably connected on the described vehicle frame, described displacement device is connected between described guard rail and the described vehicle frame, in order to changing described guard rail with respect to the position of described vehicle frame, and then changes angle of attach and/or the departure angle of vehicle.
Further, described displacement device comprises be used to the actuating device that drives described guard rail activity, described actuating device comprises cylinder or oil cylinder, the piston rod of described cylinder or oil cylinder is rotating to be connected on the described guard rail, and the cylinder barrel of described cylinder or oil cylinder is rotating to be connected on the described vehicle frame.
Further, described actuating device also comprises extension spring, one end of described extension spring is connected on described cylinder barrel or the vehicle frame, and the other end is connected on the described guard rail, and the draw direction of described extension spring and described cylinder or the flexible direction almost parallel of cylinder piston rod.
Further, described displacement device comprises push rod, the first end of described push rod is connected on the described guard rail, on selectable of being connected at least two mounting brackets that are arranged on the described vehicle frame of the second end of described push rod, described push rod changes the relative position of described protective device and described vehicle frame by its second end and the connection of different mounting bracket, and then changes angle of attach and/or the departure angle of vehicle.
Further, be disposed with front mounting bracket, middle mounting bracket and rear mounting bracket on the described vehicle frame, the top of described guard rail is connected on the described front mounting bracket by bearing pin, the first end of described push rod is connected to described guard rail bottom by bearing pin, and the second end of described push rod is selectable to be connected on described middle mounting bracket or the rear mounting bracket.
Further, when described push rod was connected on the described middle mounting bracket, described guard rail was vertical state, and when described push rod was connected on the described rear mounting bracket, described guard rail rotated to an angle around described front mounting bracket and is contraction state.
Further, described rear mounting bracket is arranged on the position near described vehicle frame middle part, and described front mounting bracket is arranged on the position away from described vehicle frame middle part.
Further, described push rod is connected with described middle mounting bracket or rear mounting bracket by bearing pin or bolt.
Further, described being rotatably connected as hinged by bearing pin or connect by ball pivot.
Further, described protective device comprises front underrun protection device and/or protecting device for rear lower part.
On the other hand, the present invention also provides a kind of construction machinery and equipment, and this project machinery is provided with aforesaid protective device.
Further, described construction machinery and equipment is car hosit.
With respect to prior art, the present invention has following advantage:
(1) protective device of the present invention can rotate to an angle by cylinder or hydraulic oil cylinder driving guard rail, and then make protective device and ground distance adjustable, satisfy regulatory requirement in the time of can guaranteeing the car hosit road running also can be satisfied the crossing ability requirement of special road conditions.
(2) protective device of the present invention adopts cylinder or hydraulic oil cylinder driving to make, and is not only simple in structure, and can realize automatically regulating by gas circuit or oil path control system, controls conveniently.
(3) protective device of the present invention can also be by the variation of push rod installation site mode of operation or contraction state, and then make protective device and ground distance adjustable, satisfy regulatory requirement in the time of can guaranteeing the car hosit road running also can be satisfied the crossing ability requirement of special road conditions.
(4) push rod of protective device of the present invention is connected on guard rail and the vehicle frame by bearing pin, and is simple in structure, with low cost, controls convenient and reliable.
Description of drawings
The accompanying drawing that consists of a part of the present invention is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the embodiment of the invention one described front underrun protection device;
Fig. 2 is the structural representation of the embodiment of the invention one described protecting device for rear lower part;
Fig. 3 is the embodiment of the invention two described protective device working state structure scheme drawings;
Fig. 4 is the embodiment of the invention two described protective device contraction state structural representations.
Description of reference numerals:
The 1-guard rail, 2-bearing pin, 3-extension spring, 4-cylinder, 5-vehicle frame, mounting bracket behind the 6-, mounting bracket in the middle of the mounting bracket before the 7-push rod, 8-, 9-.
The specific embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the present invention can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Embodiment one
Fig. 1 and Fig. 2 are the relevant drawings of present embodiment, as shown in FIG., the described protective device of present embodiment comprises front underrun protection device and the protecting device for rear lower part that is arranged on the vehicle frame 5, this front underrun protection device and protecting device for rear lower part include guard rail 1, actuating device and extension spring 3, the top of this guard rail 1 is hinged on the vehicle frame 5 by bearing pin 2, this actuating device is cylinder 4 in the present embodiment, the cylinder barrel of this cylinder 4 is connected on the vehicle frame 5 by ball pivot, the piston rod of this cylinder 4 also is connected to the bottom of this guard rail 1 by ball pivot, like this can by this cylinder 4 stretch drive guard rail 1 and rotate around bearing pin 2, and then regulate the ground clearance of this guard rail 1.One end of this extension spring 3 is connected on the cylinder barrel of this cylinder 4, and the other end is connected on the guard rail 1, and the draw direction of this extension spring 3 and this cylinder 4 almost parallels.
When the described protective device of present embodiment is applied on the car hosit, when road running, can be by being arranged on air-path control system on the car hosit to cylinder 4 air feed, make piston rod be in the state of stretching out, extension spring 3 is in extended state, at this moment guard rail 1 is in normal working, and guard rail 1 is less with ground distance, avoids dolly to pierce; When car hosit in the building site or mine when travelling, the condition of road surface variation, crossing ability is bad, this moment can be by the control of the switch in operator's compartment gas circuit, make cylinder 4 venting, at this moment protective device rotates to an angle around bearing pin 2 under the application force of spring, makes guard rail 1 be in contraction state, and then the angle of attach of vehicle, departure angle are strengthened, to improve the crossing ability of car hosit.
As other flexible embodiments of present embodiment, described cylinder 4 can also be oil cylinder, when using oil cylinder as actuating device, can save this extension spring 3, and these extension spring 3 one ends are connected on the guard rail 1, and the other end also can be connected on the vehicle frame 5.
Embodiment two
Fig. 3 and Fig. 4 are the relevant drawings of present embodiment, as shown in FIG., the described protective device of present embodiment comprises front underrun protection device and protecting device for rear lower part, this front underrun protection device and protecting device for rear lower part mainly are made of guard rail 1, bearing pin 2, front mounting bracket 8, push rod 7, middle mounting bracket 9, rear mounting bracket 6 and vehicle frame 5, guard rail 1 top is connected by bearing pin 2 with vehicle frame 5, and guard rail 1 can be around these bearing pin 2 rotations; Guard rail 1 bottom is connected by bearing pin 2 with push rod 7 front portions, and push rod 7 rear portions are connected by bearing pin 2 with middle mounting bracket 9 or rear mounting bracket 6.Mounting bracket 6 is arranged on the position near vehicle frame 5 middle parts after being somebody's turn to do, and this front mounting bracket 8 is arranged on the position away from vehicle frame 5 middle parts.
When the described protective device of present embodiment is applied on the car hosit, when road running, on the mounting bracket 9, make guard rail 1 in running order (as shown in Figure 3) in the middle of push rod 7 can being connected to, at this moment guard rail 1 is less with ground distance, avoids dolly to pierce; When car hosit in the building site or mine when travelling, the condition of road surface variation, crossing ability is bad, can be fixed on push rod 7 on the rear mounting bracket 6 by bearing pin 2 this moment, the bearing pin 2 of guard rail 1 this moment on front mounting bracket rotates to an angle backwards, make guard rail be in the contraction state (see figure 4), and then the angle of attach of vehicle, departure angle are strengthened, to improve the crossing ability of car hosit.
As other flexible embodiments of present embodiment, the top of this push rod 7 also can be connected with middle mounting bracket 9 or rear mounting bracket 6 by bolt.
Except above-mentioned protective device, the present invention also provides a kind of construction machinery and equipment that is provided with above-mentioned protective device, particularly a kind of car hosit, and the structure of other each several parts of this car hosit is with reference to prior art, and this paper repeats no more.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. protective device, be arranged on the vehicle frame (5), it is characterized in that, described protective device comprises guard rail (1) and displacement device, described guard rail (1) is movably connected on the described vehicle frame (5), described displacement device is connected between described guard rail (1) and the described vehicle frame (5), in order to change described guard rail (1) with respect to the position of described vehicle frame (5).
2. protective device according to claim 1, it is characterized in that, described displacement device comprises be used to driving the movable actuating device of described guard rail (1), described actuating device comprises cylinder (4) or oil cylinder, the piston rod of described cylinder (4) or oil cylinder is rotating to be connected on the described guard rail (1), and the cylinder barrel of described cylinder (4) or oil cylinder is rotating to be connected on the described vehicle frame (5).
3. protective device according to claim 2, it is characterized in that, described actuating device also comprises extension spring (3), one end of described extension spring (3) is connected on described cylinder barrel or the vehicle frame (5), the other end is connected on the described guard rail (1), and the draw direction of described extension spring (3) is parallel with described cylinder (4) or the flexible direction of cylinder piston rod.
4. protective device according to claim 1, it is characterized in that, described displacement device comprises push rod (7), the first end of described push rod (7) is connected on the described guard rail (1), on selectable of being connected at least two mounting brackets that are arranged on the described vehicle frame (5) of the second end of described push rod (7), described push rod (7) changes the relative position of described protective device and described vehicle frame (5) by its second end and the connection of different mounting bracket.
5. protective device according to claim 4, it is characterized in that, be disposed with front mounting bracket (8), middle mounting bracket (9) and rear mounting bracket (6) on the described vehicle frame (5), the top of described guard rail (1) is connected on the described front mounting bracket (8) by bearing pin (2), the first end of described push rod (7) is connected to described guard rail (1) bottom by bearing pin (2), and the second end of described push rod (7) is selectable to be connected on described middle mounting bracket (9) or the rear mounting bracket (6).
6. protective device according to claim 5, it is characterized in that, when described push rod (7) is connected on the described centre mounting bracket (9), described guard rail (1) is vertical state, when described push rod (7) was connected on the described rear mounting bracket (6), described guard rail (1) rotated to an angle around described front mounting bracket (8) and is contraction state.
7. protective device according to claim 6 is characterized in that, described rear mounting bracket (6) is arranged on the position near described vehicle frame (5) middle part, and described front mounting bracket (8) is arranged on the position away from described vehicle frame (5) middle part.
8. according to claim 1 to the described protective device of 7 any one, it is characterized in that described protective device comprises front underrun protection device and/or protecting device for rear lower part.
9. a construction machinery and equipment is characterized in that, described construction machinery and equipment is provided with such as the described protective device of claim 1 to 8 any one.
10. construction machinery and equipment according to claim 9 is characterized in that, described construction machinery and equipment is car hosit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210518110 CN102991443A (en) | 2012-12-06 | 2012-12-06 | Engineering machine and protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210518110 CN102991443A (en) | 2012-12-06 | 2012-12-06 | Engineering machine and protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102991443A true CN102991443A (en) | 2013-03-27 |
Family
ID=47920716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210518110 Pending CN102991443A (en) | 2012-12-06 | 2012-12-06 | Engineering machine and protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102991443A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108657096A (en) * | 2017-03-28 | 2018-10-16 | 福特全球技术公司 | Rear impact guard device for vehicle |
| CN110091818A (en) * | 2019-04-30 | 2019-08-06 | 安徽丰源车业有限公司 | A kind of new energy environmental sanitation electric vehicle rear anti-collision device |
| CN112479102A (en) * | 2020-11-27 | 2021-03-12 | 浙江拓邦液压科技有限公司 | Forklift lifting oil cylinder protection device for transportation |
-
2012
- 2012-12-06 CN CN 201210518110 patent/CN102991443A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108657096A (en) * | 2017-03-28 | 2018-10-16 | 福特全球技术公司 | Rear impact guard device for vehicle |
| CN108657096B (en) * | 2017-03-28 | 2023-09-26 | 福特全球技术公司 | Rear collision protection device for vehicle |
| CN110091818A (en) * | 2019-04-30 | 2019-08-06 | 安徽丰源车业有限公司 | A kind of new energy environmental sanitation electric vehicle rear anti-collision device |
| CN112479102A (en) * | 2020-11-27 | 2021-03-12 | 浙江拓邦液压科技有限公司 | Forklift lifting oil cylinder protection device for transportation |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |