CN112282370A - Pump truck chassis landing leg structure and pump truck - Google Patents
Pump truck chassis landing leg structure and pump truck Download PDFInfo
- Publication number
- CN112282370A CN112282370A CN202011041900.2A CN202011041900A CN112282370A CN 112282370 A CN112282370 A CN 112282370A CN 202011041900 A CN202011041900 A CN 202011041900A CN 112282370 A CN112282370 A CN 112282370A
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- Prior art keywords
- leg
- pump truck
- swing
- chassis
- underframe
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a pump truck chassis support leg structure which comprises a chassis structure, a front swing support leg, a rear telescopic support leg, a vertical oil cylinder and swing oil cylinders, wherein the front swing support leg and the rear telescopic support leg are respectively arranged at two ends of the chassis structure, the vertical oil cylinder is arranged at the bottom of the front swing support leg, the two rear telescopic support legs are arranged at one end of the chassis structure in a sliding manner, and the two swing oil cylinders are respectively arranged at two sides of the chassis structure and are used for respectively controlling the horizontal swing of the corresponding front swing support legs. The invention also discloses a pump truck. The purpose of the supporting leg structure of the pump truck chassis is to solve the problem that the supporting leg structure of the pump truck chassis is large in mass due to complex structure.
Description
Technical Field
The invention belongs to the technical field of engineering mechanical equipment, and particularly relates to a pump truck chassis support leg structure and a pump truck.
Background
The traditional pump truck chassis supporting leg structure consists of a front swing supporting leg, a chassis and a rear swing supporting leg (or a rear telescopic supporting leg). It has the following problems: the front swing supporting leg and the supporting leg slideway have complex structures, large total mass of the structures and large manufacturing and maintenance difficulty; the left and right support legs of the front swing support leg structure are vertically crossed, the section height is limited by the structure size, and the telescopic support leg box body structure with large section height cannot be realized; the front swing supporting leg is limited by the width of the vehicle, the front swing supporting leg can only realize larger length in multiple stages, the multi-stage structure is complex, and the total mass is large.
In view of this, a person skilled in the art needs to provide a pump truck chassis leg structure and a pump truck to solve the problem of large mass of the pump truck chassis leg structure due to complex structure.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problem that the supporting leg structure of the pump truck underframe is large in mass due to complex structure.
(II) technical scheme
The invention provides a pump truck chassis support leg structure, which comprises a chassis structure, a front swing support leg, a rear telescopic support leg, a vertical oil cylinder and swing oil cylinders, wherein the front swing support leg and the rear telescopic support leg are respectively arranged at two ends of the chassis structure, the vertical oil cylinder is arranged at the bottom of the front swing support leg, the two rear telescopic support legs are arranged at one end of the chassis structure in a sliding manner, and the two swing oil cylinders are respectively arranged at two sides of the chassis structure and are used for respectively controlling the horizontal swing of the front swing support leg corresponding to the two swing oil cylinders.
Further, the chassis structure comprises a longitudinal beam, a rotary tower platform and a rear supporting leg slide way, the rotary tower platform is arranged at one end of the longitudinal beam, the rear supporting leg slide way is arranged at the other end of the longitudinal beam, and the rear telescopic supporting leg is arranged in the rear supporting leg slide way in a sliding manner.
Furthermore, two the back landing leg slide is followed the width direction parallel arrangement of longeron, two back flexible landing leg slides respectively and locates correspondingly in the back landing leg slide.
Further, pump truck chassis landing leg structure still includes horizontal flexible hydro-cylinder, horizontal flexible hydro-cylinder is located in the back landing leg slide and be used for promoting back flexible landing leg removes.
Further, the distance between the front swing supporting leg and the rear telescopic supporting leg in the retraction state is larger than the length of the front swing supporting leg.
Furthermore, the front swing supporting leg is arranged on a hinge point of the front supporting leg of the underframe structure through a pin shaft.
Furthermore, the four vertical oil cylinders are respectively arranged at four corners of the bottom of the front swing supporting leg.
Further, the front swing leg is a single-stage leg.
The invention provides a pump truck, which comprises a boom system and the pump truck underframe leg structure.
Further, when the underframe structure comprises the turret table, the boom system is rotatably arranged on the turret table of the pump truck underframe leg structure.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
the invention provides a pump truck chassis support leg structure which comprises a chassis structure, a front swing support leg, a rear telescopic support leg, a vertical oil cylinder and swing oil cylinders, wherein the front swing support leg and the rear telescopic support leg are respectively arranged at two ends of the chassis structure, the vertical oil cylinder is arranged at the bottom of the front swing support leg, the two rear telescopic support legs are arranged at one end of the chassis structure in a sliding manner, and the two swing oil cylinders are respectively arranged at two sides of the chassis structure and are used for respectively controlling the horizontal swing of the corresponding front swing support legs. This pump truck chassis landing leg structure is satisfying under the prerequisite that bearing capacity and stability required, and chassis structure obviously reduces than current chassis landing leg structure's total mass, reduces the total mass of pump truck device, can realize the preceding landing leg box structure of bigger cross-sectional height, better preceding landing leg box rigidity.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a front view of a leg structure of a pump truck underframe provided by an embodiment of the invention;
FIG. 2 is a schematic diagram illustrating a support leg unfolding state of a support leg structure of an underframe of a pump truck according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a leg retracting state of a leg structure of an underframe of a pump truck according to an embodiment of the invention;
FIG. 4 is a front view of a chassis structure in a leg structure of a pump truck chassis according to an embodiment of the present invention;
FIG. 5 is a top view of a chassis structure in a leg structure of a pump truck chassis according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a pump truck according to an embodiment of the present invention.
In the figure:
1. a chassis structure; 101. a stringer; 102. rotating the tower platform; 103. a rear leg slideway; 104. a front leg hinge point; 2. front swing supporting legs; 3. a rear telescopic leg; 4. a vertical oil cylinder; 5. a swing oil cylinder; 6. a horizontal telescopic oil cylinder; 7. a pin shaft; 8. a boom system.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic structural diagram of a pump truck chassis support leg structure provided in an embodiment of the present invention, and a first aspect of the present invention according to an embodiment of the present invention provides a pump truck chassis support leg structure, as shown in fig. 1-3, including a chassis structure 1, a front swing support leg 2, a rear telescopic support leg 3, a vertical cylinder 4, and a swing cylinder 5, where the front swing support leg 2 and the rear telescopic support leg 3 are respectively disposed at two ends of the chassis structure 1, the vertical cylinder 4 is disposed at the bottom of the front swing support leg 2, the two rear telescopic support legs 3 are slidably disposed at one end of the chassis structure 1, and the two swing cylinders 5 are respectively disposed at two sides of the chassis structure 1 and are used to respectively control horizontal swinging of the respective corresponding front swing support legs 2.
In the embodiment, the combined structure of the front swing supporting leg 2 and the rear telescopic supporting leg 3 adopts the structure of the front swing supporting leg 2, an underframe supporting leg slideway is not provided, the underframe structure and the front supporting leg structure are simpler than the existing structure, and the total structural mass is small.
In some alternative embodiments, as shown in fig. 4-5, the undercarriage structure 1 comprises a longitudinal beam 101, a turret table 102 and a rear leg slide 103, the turret table 102 being provided at one end of the longitudinal beam 101, the rear leg slide 103 being provided at the other end of the longitudinal beam 101, and the rear telescopic leg 3 being slidably provided in the rear leg slide 103. Specifically, the turret table 102, the front leg hinge 104, the longitudinal beam 101 and the rear leg slide 103 are welded to form the integral underframe structure 1.
In some alternative embodiments, as shown in fig. 4 to 5, two rear leg slideways 103 are arranged in parallel along the width direction of the longitudinal beam 101, and two rear telescopic legs 3 are respectively slidably arranged in the corresponding rear leg slideways 103.
In some optional embodiments, as shown in fig. 2 to 3, the pump truck chassis support leg structure further includes a horizontal telescopic cylinder 6, and the horizontal telescopic cylinder 6 is disposed in the rear support leg slideway 103 and used for pushing the rear telescopic support leg 3 to move.
Specifically, the swing oil cylinder 5 pushes the front swing supporting leg 2 to rotate to a limited position, the vertical oil cylinder 4 extends downwards to be supported to the ground, the horizontal telescopic oil cylinder 6 pushes the rear telescopic supporting leg 3 to extend to the limited position, the vertical oil cylinder 4 extends downwards to be supported to the ground, and the four vertical oil cylinders 4, namely four supporting points, support the underframe structure 1.
The swing oil cylinder 5 contracts and pulls back the front swing supporting leg 2 to rotate to the original position, the rear telescopic supporting leg 3 is arranged at the rearmost end position of the longitudinal beam 101 of the underframe structure 1, the distance between the retraction state of the front swing supporting leg 2 and the rear telescopic supporting leg 3 is larger than the length of the front swing supporting leg 2, and the front swing supporting leg 2 can be realized only by a single stage.
In some alternative embodiments, as shown in fig. 3, the front swing legs 2 are spaced from the rear telescoping legs 3 in the retracted state by a distance greater than the length of the front swing legs 2.
In some alternative embodiments, as shown in fig. 2, the front swing leg 2 is mounted on the front leg hinge point 104 of the base frame structure 1 by means of a pin 7.
In some alternative embodiments, as shown in fig. 1, four vertical cylinders 4 are respectively disposed at four corners of the bottom of the front swing leg 2.
In some alternative embodiments, the front swing leg 2 is a single stage leg. The single-stage supporting leg can simplify the structure and reduce the production cost.
According to a second aspect of the embodiment of the present invention, there is provided a pump truck, as shown in fig. 6, including a boom system 8 and the above-mentioned pump truck underframe leg structure.
Specifically, the pump truck with the pump truck chassis landing leg is compared with the existing pump truck, and on the premise that the structure meets the requirements of bearing capacity and stability, the total mass is obviously reduced.
In some alternative embodiments, as shown in fig. 6, the boom system 8 may be rotatably mounted on the turret table 102 of the pump truck undercarriage leg structure when the undercarriage structure 1 includes the turret table 102 as shown.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a pump truck chassis landing leg structure, its characterized in that, includes chassis structure (1), preceding swing landing leg (2), back telescopic leg (3), perpendicular hydro-cylinder (4) and swing hydro-cylinder (5), preceding swing landing leg (2) back telescopic leg (3) are located respectively the both ends of chassis structure (1), perpendicular hydro-cylinder (4) are located the bottom of preceding swing landing leg (2), two back telescopic leg (3) slide to be located the one end of chassis structure (1), two swing hydro-cylinder (5) are located respectively the both sides of chassis structure (1) just are used for controlling respectively and correspond the horizontal hunting of preceding swing landing leg (2).
2. The pump truck underframe leg structure according to claim 1, wherein the underframe structure (1) comprises a longitudinal beam (101), a turret table (102) and a rear leg slideway (103), the turret table (102) is arranged at one end of the longitudinal beam (101), the rear leg slideway (103) is arranged at the other end of the longitudinal beam (101), and the rear telescopic leg (3) is slidably arranged in the rear leg slideway (103).
3. The pump truck underframe leg structure according to claim 2, wherein two rear leg slideways (103) are arranged in parallel along the width direction of the longitudinal beam (101), and two rear telescopic legs (3) are respectively slidably arranged in the corresponding rear leg slideways (103).
4. The pump truck underframe leg structure according to claim 2, further comprising a horizontal telescopic cylinder (6), wherein the horizontal telescopic cylinder (6) is arranged in the rear leg slideway (103) and used for pushing the rear telescopic leg (3) to move.
5. Pump truck chassis leg construction according to claim 1, characterized in that the distance of the front swing leg (2) from the rear telescopic leg (3) in the retracted state is larger than the length of the front swing leg (2).
6. Pump truck underframe leg structure according to claim 1, characterized in that the front swing leg (2) is mounted on the front leg hinge point (104) of the underframe structure (1) by means of a pin (7).
7. The pump truck underframe leg structure according to claim 1, wherein four vertical oil cylinders (4) are respectively arranged at four corners of the bottom of the front swing leg (2).
8. Pump truck underframe leg arrangement according to claim 1, characterized in that the front swing leg (2) is a single-stage leg.
9. Pump truck, characterized in that it comprises a boom system (8) and a pump truck undercarriage leg structure according to any one of claims 1-8.
10. Pump truck according to claim 9, characterized in that the boom system (8) is rotatably arranged on the turret table (102) of the pump truck undercarriage leg arrangement when the undercarriage arrangement (1) comprises the turret table (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041900.2A CN112282370A (en) | 2020-09-28 | 2020-09-28 | Pump truck chassis landing leg structure and pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041900.2A CN112282370A (en) | 2020-09-28 | 2020-09-28 | Pump truck chassis landing leg structure and pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112282370A true CN112282370A (en) | 2021-01-29 |
Family
ID=74421646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011041900.2A Pending CN112282370A (en) | 2020-09-28 | 2020-09-28 | Pump truck chassis landing leg structure and pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112282370A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801569Y (en) * | 2005-04-30 | 2006-08-02 | 徐州重型机械有限公司 | Front-extension rear oscillating support of concrete pump car |
| CN102442281A (en) * | 2011-10-24 | 2012-05-09 | 中联重科股份有限公司 | Supporting leg device for engineering machinery and concrete pump truck |
| CN103723198A (en) * | 2013-11-12 | 2014-04-16 | 徐州重型机械有限公司 | Wheel crane and frame structure thereof |
| CN204456898U (en) * | 2015-01-20 | 2015-07-08 | 三一汽车制造有限公司 | A kind of concrete mixer and arm rest supporting device |
| CN206571170U (en) * | 2016-12-16 | 2017-10-20 | 青岛科尼乐集团有限公司 | Parallel telescopic outrigger pump truck after X-type before a kind of monoblock type |
-
2020
- 2020-09-28 CN CN202011041900.2A patent/CN112282370A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2801569Y (en) * | 2005-04-30 | 2006-08-02 | 徐州重型机械有限公司 | Front-extension rear oscillating support of concrete pump car |
| CN102442281A (en) * | 2011-10-24 | 2012-05-09 | 中联重科股份有限公司 | Supporting leg device for engineering machinery and concrete pump truck |
| WO2013060232A1 (en) * | 2011-10-24 | 2013-05-02 | 中联重科股份有限公司 | Leg device for engineering machinery and concrete pump truck |
| CN103723198A (en) * | 2013-11-12 | 2014-04-16 | 徐州重型机械有限公司 | Wheel crane and frame structure thereof |
| CN204456898U (en) * | 2015-01-20 | 2015-07-08 | 三一汽车制造有限公司 | A kind of concrete mixer and arm rest supporting device |
| CN206571170U (en) * | 2016-12-16 | 2017-10-20 | 青岛科尼乐集团有限公司 | Parallel telescopic outrigger pump truck after X-type before a kind of monoblock type |
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Application publication date: 20210129 |