CN202703548U - Engineering vehicle and support leg structure thereof - Google Patents
Engineering vehicle and support leg structure thereof Download PDFInfo
- Publication number
- CN202703548U CN202703548U CN 201220308447 CN201220308447U CN202703548U CN 202703548 U CN202703548 U CN 202703548U CN 201220308447 CN201220308447 CN 201220308447 CN 201220308447 U CN201220308447 U CN 201220308447U CN 202703548 U CN202703548 U CN 202703548U
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- support cylinder
- leg structure
- horizontal shaft
- hole
- engineering truck
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Abstract
The utility model provides an engineering vehicle and a support leg structure of the engineering vehicle. The support leg structure of the engineering vehicle comprises a horizontal support leg and a supporting oil cylinder connected to the horizontal support leg, the supporting oil cylinder is in pivot connection with the horizontal support leg, and the rotating axis of the supporting oil cylinder coincides with or is in parallel to the axis of the horizontal support leg. Through the technical scheme, the effect that the smallest gap between the supporting oil cylinder and the ground is enlarged is achieved, and driving property of the engineering vehicle is improved. The engineering vehicle comprises the support leg structure of the engineering vehicle.
Description
Technical field
The utility model relates to the engineering truck field, more specifically, relates to a kind of engineering truck and leg structure thereof.
Background technology
At present, the support cylinder that engineering truck is formed vertical support generally is arranged in gets off, and support cylinder vertically is fixedly mounted on the horizontal support legs and does only the expanding-contracting action of self.When the engineering truck operation, the control support cylinder is flexible, and the leg disc that is installed in the support cylinder rod end is contacted with ground, stable support is provided for the operating condition of engineering truck.Under motoring condition, because the support cylinder body has certain-length, and support cylinder or be arranged in position between each vehicle bridge tire, be arranged in the position in each vehicle bridge outside, even support cylinder is reduced to short status like this, the liftoff minimum clearance of support cylinder is also less, so that the liftoff minimum clearance of engineering vehicle chassis, and the angle of attach of the ramp breakover angle of engineering truck or engineering truck, departure angle be subject to larger impact, affects the rideability of engineering truck.In addition, if when support cylinder is in each vehicle bridge tire midway location, also have influence on easily turning to of vehicle bridge and tire.
The utility model content
The utility model is intended to propose a kind of leg structure of engineering truck, even be contracted to short status with the support cylinder of the engineering truck that solves prior art, its liftoff minimum clearance is also less, thereby affects the problem of the rideability of engineering truck.The utility model has also proposed a kind of engineering truck that can address the above problem.
An aspect, the utility model provides a kind of leg structure of engineering truck, comprise: horizontal support legs and be connected to support cylinder on the horizontal support legs, support cylinder is connected with the horizontal support legs pivot, and the rotation axis of support cylinder coincides with the axis of horizontal support legs or parallels.
Further, the end of horizontal support legs is provided with horizontal shaft; On the cylinder body of support cylinder attaching parts is installed, attaching parts is provided be used to the hole that is set on the horizontal shaft; Also be provided with axial limiting spare between horizontal shaft and the attaching parts.
Further, attaching parts comprises: bearing mounting base is installed on the cylinder body of support cylinder; Flange removably connects with bearing mounting base, and what the centre hole of flange formed attaching parts is used for being set in hole on the described horizontal shaft.
Further, the centre hole of flange is stepped hole, and this stepped hole comprises the first hole section and the second hole section that is connected, and the first hole section is adjacent with bearing mounting base, and the aperture of the first hole section is greater than the aperture of the second hole section; Axial limiting spare is the bulge loop that is arranged on the horizontal shaft, and bulge loop matches with the first hole section.
Further, bulge loop and horizontal shaft are one-body molded.
Further, be provided with axle sleeve between the second hole section and the horizontal shaft.
Further, horizontal shaft and horizontal support legs are for removably connecting.
Another aspect, the utility model also provide a kind of engineering truck, are provided with the leg structure of above-mentioned engineering truck.
Further, the rod end at support cylinder is equipped with leg disc.
According to the technical solution of the utility model, because pivoting with horizontal support legs, support cylinder is connected, and the rotation axis of support cylinder coincides with the axis of horizontal support legs or parallels, be that support cylinder can swing at longitudinal plane, after engineering truck finishes operation, can support cylinder be rotated to an angle by external force, then by other structures support cylinder is remained on postrotational state, just can increase at an easy rate the liftoff minimum clearance of support cylinder, be equivalent to increase the liftoff minimum clearance of engineering vehicle chassis.And, can also increase the ramp breakover angle of engineering truck or angle of attach, the departure angle of engineering truck, improved the rideability of engineering truck.In addition, because support cylinder can rotate, just can reduce interference between support cylinder and vehicle bridge and tire not affecting turning to of vehicle bridge and tire, but also can reduce the vehicle bridge spacing of engineering truck, make the layout of engineering truck compacter.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the main TV structure of the utility model preferred embodiment; And,
Fig. 2 has schematically shown the A-A sectional structure of Fig. 1.
The specific embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Referring to Fig. 1 and Fig. 2, show the preferred embodiment of the leg structure of a kind of engineering truck that the utility model provides, as shown in the figure, the leg structure of this project vehicle comprises horizontal support legs 1 and is connected to support cylinder 2 on the horizontal support legs 1.Horizontal support legs 1 can be made axial stretching usually, and the cylinder body of support cylinder 2 is connected connection with horizontal support legs, and the rod end of support cylinder 2 can be installed leg disc, to increase the area of contact on support cylinder 2 and ground.When engineering truck is in operating condition, horizontal support legs 1 drives support cylinder 2 levels and stretches out the larger support span of formation, then support cylinder 2 is vertically flexible, leg disc is contacted with ground, thereby provide more stable support to the operating condition of engineering truck.
By finding out among Fig. 1, the leg structure that the utility model embodiment provides, support cylinder 2 pivots with horizontal support legs 1 and is connected, and the axis X-X of support cylinder 2 coincides with the axis of horizontal support legs 1 or parallels, namely, axis X-X is parallel to the axis of horizontal support legs 1, and perhaps axis X-X overlaps mutually with the axis of horizontal support legs 1.Like this, after engineering truck finishes operation, can be by external force support cylinder 2 is rotated to an angle (for example support cylinder 2 being rotated to horizontality), then by other structures support cylinder 2 is remained on postrotational state, just can realize increasing at an easy rate the effect of support cylinder 2 liftoff minimum clearances, be equivalent to increase the liftoff minimum clearance of engineering vehicle chassis.And, if support cylinder 2 between each vehicle bridge tire, then can increase the ramp breakover angle of engineering truck; If support cylinder 2 is positioned at the outside of each vehicle bridge tire, then can increases angle of attach and/or the departure angle of engineering truck, thereby improve the rideability of engineering truck.In addition, because support cylinder 2 can rotate, just can reduce interference between support cylinder 2 and vehicle bridge and tire not affecting turning to of vehicle bridge and tire, but also can reduce the vehicle bridge spacing of engineering truck, make the layout of engineering truck compacter.
Comprehensive reference Fig. 1 and Fig. 2, support cylinder 2 has been shown in the present embodiment has been connected the preferred implementation that pivots and connect with horizontal support legs, the end of horizontal support legs 1 is provided with horizontal shaft 11, attaching parts 3 is installed on the cylinder body of support cylinder 2, attaching parts 3 is provided be used to the hole that is set on the horizontal shaft 11, and support cylinder 2 can be rotated around horizontal shaft 11.Obviously, the line of centers of horizontal shaft 11 forms the axis X-X of support cylinder 2.In addition, between horizontal shaft 11 and attaching parts 3, also be provided with axial limiting spare, to avoid causing support cylinder 2 by the danger that comes off on the horizontal support legs 1 because moving axially between attaching parts 3 and the horizontal shaft 11.
In the present embodiment, particularly, attaching parts 3 comprises bearing mounting base 31 and flange 32.Bearing mounting base 31 for example is installed on the cylinder body of support cylinder 2 by the mode of welding.Flange 32 for example removably connects by bolt or screw and bearing mounting base 31, and what the centre hole of flange 32 formed attaching parts 3 is used for being set in hole on the horizontal shaft 11.As can be seen from Figure, preferably, the centre hole of flange 32 is stepped hole, and it comprises that the first hole section 321 that is connected is adjacent with bearing mounting base 31 with the second hole section 322, the first hole sections 321, and the aperture of the first hole section 321 is greater than the aperture of the second hole section 322.Axially movable axial limiting spare is the bulge loop 111 that is arranged on the horizontal shaft 11 between attaching parts 3 and the horizontal shaft 11 for limiting, and bulge loop 111 matches with the first hole section 321.Preferably, bulge loop 111 is one-body molded with horizontal shaft 11, so that processing and manufacturing.
The installation process of the leg structure of engineering truck is as described below according to the preferred embodiment of the invention:
(1) bearing mounting base 31 is welded on the cylinder body of support cylinder 2.
(2) horizontal shaft 11 is passed the centre hole of flange 32, and guarantee that bulge loop 111 and the first hole section 321 on the horizontal shaft 11 cooperate, then horizontal shaft 11 is mounted on the horizontal support legs 1, horizontal shaft 11 is preferably with horizontal support legs 1 and removably connects.
(3) flange 32 and bearing mounting base 31 are linked together, bulge loop 111 is clamped between the stage portion and bearing mounting base 31 of stepped hole, thus restriction attaching parts 3 and horizontal shaft 11 moving axially between the two.
Preferably, can also between the second hole section 322 and horizontal shaft 11, be provided with axle sleeve, the friction drag when rotating to reduce support cylinder 2.
The utility model also provides a kind of engineering truck, is provided with the leg structure of above-mentioned engineering truck.This project vehicle for example is rough-terrain crane or wheel-mounted crane.In addition, the rod end at support cylinder 2 also is equipped with for increasing the leg disc (not shown) of support cylinder 2 with contact area of ground.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle; any modification of doing, (for example bulge loop 111 and horizontal shaft 11 are for being connected by screw two separate parts together to be equal to replacement, improvement etc.; but not one-body molded), also all should be included within the protection domain of the present utility model.
Claims (9)
1. the leg structure of an engineering truck, comprise: horizontal support legs (1) and be connected to support cylinder (2) on the described horizontal support legs (1), it is characterized in that, described support cylinder (2) and described horizontal support legs (1) pivot and are connected, and the rotation axis (X-X) of described support cylinder (2) coincides with the axis of described horizontal support legs (1) or parallels.
2. leg structure according to claim 1 is characterized in that, the end of described horizontal support legs (1) is provided with horizontal shaft (11); Attaching parts (3) is installed on the cylinder body of described support cylinder (2), and described attaching parts (3) is provided be used to the hole that is set on the described horizontal shaft (11); Also be provided with axial limiting spare between described horizontal shaft (11) and the described attaching parts (3).
3. leg structure according to claim 2 is characterized in that, described attaching parts (3) comprising: bearing mounting base (31) is installed on the cylinder body of described support cylinder (2); Flange (32) removably connects with described bearing mounting base (31), and what the centre hole of described flange (32) formed described attaching parts (3) is used for being set in hole on the described horizontal shaft (11).
4. leg structure according to claim 3, it is characterized in that, the centre hole of described flange is stepped hole, described stepped hole comprises the first hole section (321) and the second hole section (322) that is connected, described the first hole section (321) is adjacent with described bearing mounting base (31), and the aperture of described the first hole section (321) is greater than the aperture of described the second hole section (322); Described axial limiting spare is for being arranged on the bulge loop (111) on the described horizontal shaft (11), and described bulge loop (111) matches with described the first hole section (321).
5. leg structure according to claim 4 is characterized in that, described bulge loop (111) is one-body molded with described horizontal shaft (11).
6. leg structure according to claim 4 is characterized in that, is provided with axle sleeve between described the second hole section (322) and the described horizontal shaft (11).
7. each described leg structure in 6 according to claim 2 is characterized in that, described horizontal shaft (11) and described horizontal support legs (1) are for removably connecting.
8. an engineering truck is characterized in that, is provided with the leg structure of each described engineering truck in the claim 1 to 7.
9. engineering truck according to claim 8 is characterized in that, at the rod end of described support cylinder (2) leg disc is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308447 CN202703548U (en) | 2012-06-28 | 2012-06-28 | Engineering vehicle and support leg structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308447 CN202703548U (en) | 2012-06-28 | 2012-06-28 | Engineering vehicle and support leg structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202703548U true CN202703548U (en) | 2013-01-30 |
Family
ID=47583877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308447 Expired - Fee Related CN202703548U (en) | 2012-06-28 | 2012-06-28 | Engineering vehicle and support leg structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202703548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057925A (en) * | 2013-03-21 | 2014-09-24 | 徐州徐工随车起重机有限公司 | Elastic limiting auxiliary support leg and container side surface self-loading and unloading transport vehicle |
| CN112794249A (en) * | 2021-01-11 | 2021-05-14 | 合肥工业大学 | Prefabricated component's transport vechicle |
-
2012
- 2012-06-28 CN CN 201220308447 patent/CN202703548U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057925A (en) * | 2013-03-21 | 2014-09-24 | 徐州徐工随车起重机有限公司 | Elastic limiting auxiliary support leg and container side surface self-loading and unloading transport vehicle |
| CN112794249A (en) * | 2021-01-11 | 2021-05-14 | 合肥工业大学 | Prefabricated component's transport vechicle |
| CN112794249B (en) * | 2021-01-11 | 2022-09-16 | 合肥工业大学 | Prefabricated component's transport vechicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |