WO2011153885A1

WO2011153885A1 - Pump truck

Info

Publication number: WO2011153885A1
Application number: PCT/CN2011/073869
Authority: WO
Inventors: 刘志军; 岳红旭; 吴瀚晖
Original assignee: 长沙中联重工科技发展股份有限公司; 湖南中联重科专用车有限责任公司
Priority date: 2010-06-11
Filing date: 2011-05-10
Publication date: 2011-12-15
Also published as: CN201756806U

Abstract

A pump truck comprises a chassis (10), a cab (11), a slewing table (20) and distributing arms (30). The cab (11), the slewing table (20) and the distributing arms (30) are located on the chassis (10). The distributing arms (30) comprise a first arm (31). A hinge point (21) is formed by the hinge between the slewing table (20) and the first arm (31). The horizontal distance between the hinge point (21) and the rotation axis (23) of the slewing table (20) is bigger than the horizontal distance between the rear board (113) of the cab (11) and the rotation axis (23) of the slewing table (20), and the hinge point (21) is located above the roof (111) of the cab (11). The pump truck uses the space above the cab (11) fully under the limitation of the whole length of the pump truck, expands the operation space of the distributing arms, and the operation of the distributing arms is more flexible. Then the energy consumption is reduced and the operation speed is increased.

Description

Pump truck

Technical field

The present invention relates to the field of construction machinery, and more particularly to a pump truck. Background technique

As shown in FIGS. 1 and 2, the conventional pump truck includes a chassis 10 and a boom structure and a cab 11 disposed on the chassis 10, and a cab 11 is located at a front side of the boom structure, the boom structure The utility model comprises: a chassis 70, a slewing mechanism 60, a slewing bearing mechanism 50, a turret mechanism 20, a driving cylinder 40 and a fabric arm 30, wherein the turret mechanism 20 is mounted on the slewing bearing mechanism 50, and the slewing bearing mechanism 50 is disposed on the chassis 70. The chassis 70 is disposed on the chassis 10, and the swing mechanism 60 mounted on the chassis 70 is configured to drive the rotary table mechanism 20 and the swing support mechanism 50 to perform a rotational motion with respect to the chassis 70, and the rotary table mechanism 20 and the cloth arm 30 are The first arm section 31 is hinged, and both ends of the driving cylinder 40 are connected to the turntable mechanism 20 and the first arm section 31 of the cloth arm 30, respectively. The first arm section 31 of the cloth arm 30 can be pivoted with its hinge point 21 of the turntable mechanism 20 as a fulcrum.

Due to the limitation of the overall length of the pump truck, the length of the boom structure is also limited. In addition, since the length of the cloth arm in the boom structure is not limited by the cab, the flexibility of the cloth arm in operation is reduced, which results in a relatively large energy consumption and slow operation when the cloth arm is operated. Summary of the invention

It is an object of the present invention to provide a pump truck that can expand the overall operating space of the cloth arm. To this end, the present invention provides a pump truck including a chassis, a cab, a turntable mechanism, and a cloth arm, the cab, the turntable mechanism, and the cloth arm being located on the chassis, the cloth arm having a first arm joint, the turntable mechanism is hinged with the first arm joint to form a hinge point, wherein a horizontal distance d between the hinge point and a rotation axis of the turntable mechanism is greater than a horizontal distance between a rear plate of the cab and a rotation axis of the turntable mechanism, and the hinge point is located at the The roof of the cab is above the plane.

Preferably, the horizontal distance d between the hinge point and the axis of rotation of the turntable mechanism is greater than 1100 mm.

Preferably, the horizontal distance d between the hinge point and the axis of rotation of the turntable mechanism is greater than 1200 mm.

Preferably, the pump truck further includes a driving cylinder, and both ends of the driving cylinder are respectively coupled to the turntable mechanism and the first arm joint of the cloth arm.

Preferably, the chassis has a front axle.

Preferably, the hinge point is located in front of the foremost front axle.

Preferably, in addition to the first arm section, at least one of the cloth arms extends over the top plate of the cab when the cloth arm is in a folded state.

The pump truck provided by the present invention extends the horizontal distance between the hinge point of the turntable and the first arm section and the rotation axis of the turntable such that the first arm section extends above the top plate of the cab. Therefore, under the condition that the whole length of the pump truck is limited, the space above the cab is fully utilized, the overall running space of the cloth arm is expanded, and the operation of the cloth arm is more flexible, thereby saving energy consumption and improving the operation speed. In addition, since the first arm section extends above the top plate of the cab, the axle load of each chassis can be reasonably configured. Furthermore, since the first arm section becomes longer, the entire cloth arm is made longer, so that the working range of the cloth arm is wider. DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are in the In the drawing: Figure 1 shows the existing first pump truck

Figure 2 shows the existing second type of pump truck

Figure 3 shows a pump truck according to the first embodiment of the invention;

Figure 4 shows a second embodiment of the pump according to the invention;

Figure 5 shows a pump truck according to a third embodiment of the invention;

Figure 6 shows a fourth embodiment of the present invention;

Figure 7 shows a fifth embodiment of the present invention; a pump truck; an embodiment; and Figure 8 shows a sixth embodiment of the present invention;

10: chassis; 11: cab; 12: front axle; 20: turntable mechanism; 21: hinge point; 23: swivel axis; 30: cloth arm; 31: first arm section; 32: arm section; 40: drive Cylinder; 50: slewing bearing mechanism; 60: slewing mechanism; 70: chassis; 111: top plate; 113: rear plate. detailed description

It should be noted that the features in the embodiments and the embodiments in the present application may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

In the present invention, the orientation words such as "front, back, and upper" used are defined in the exercise state of the pump provided by the present invention, unless otherwise stated.

As shown in FIGS. 3 to 8, a pump truck according to an embodiment of the present invention includes a chassis 10, a cab 11, a turntable mechanism 20, and a cloth arm 30, and the cab 11, the turntable mechanism 20, and the cloth arm 30 are located at On the chassis 10, the cloth arm 30 has a first arm joint 31, and the rotary table mechanism 20 is hinged with the first arm joint 31 to form a hinge point 21, wherein the hinge point 21 and the turntable The horizontal distance d between the pivot axes 23 of the mechanism 20 is greater than the horizontal distance between the rear plate 113 of the cab 11 and the axis of rotation 23 of the turntable mechanism 20, and the hinge point is 21 Above the plane of the top plate 111 of the cab 11.

As shown in FIGS. 3 and 4, the turntable mechanism 20 is mounted on the slewing support mechanism 50, the slewing support mechanism 50 is disposed on the chassis 70, and the chassis 70 is disposed on the chassis 10, and the slewing mechanism mounted on the chassis 70 60 is used to drive the rotary table mechanism 20 and the slewing support mechanism 50 to perform a rotational motion with respect to the chassis 70. One or more additional arm segments are typically attached to the first arm section 31. The first arm section 31 is sequentially joined to the other arm sections to form a complete fabric arm 30.

Compared with the prior art pump truck, the present invention provides a pump truck that expands the horizontal distance d between the hinge point 21 of the turntable mechanism 20 and the first arm section 31 and the axis of rotation 23 of the turntable mechanism 20 ( The distance d) in FIGS. 1 and 3 can be compared, so that the first arm section 31 extends above the top plate 111 of the cab 11, thereby making full use of the cab 11 under the condition that the overall length of the pump truck is limited. The space expands the overall running space of the cloth arm 30, making the operation of the cloth arm 30 more flexible, thereby reducing energy consumption and increasing the operating speed. Further, since the first arm section 31 extends above the top plate 111 of the cab 11, the axle load of each chassis can be reasonably configured. Furthermore, since the first arm section 31 becomes long, the entire cloth arm 30 is made long, so that the working range of the cloth arm 30 is more extensive.

Preferably, the horizontal distance d between the hinge point 21 and the axis of rotation 23 of the turntable mechanism 20 is greater than 1100 mm. When the distance d is larger than 1100 mm, a good effect can be obtained, and the larger the distance d, the more the advantages of the present invention can be exhibited. More preferably, the horizontal distance d between the hinge point 21 and the axis of revolution 23 of the revolving table mechanism 20 is greater than 1200 mm.

Further, the pump truck further includes a drive cylinder 40, and both ends of the drive cylinder 40 are coupled to the turntable mechanism 20 and the first arm section 31 of the cloth arm 30, respectively.

Further, as shown in Figs. 3 to 8, the chassis 10 has a front axle 12. The number of the front axles 12 can be selected according to the needs of the user and the load bearing requirements of the pump truck.

Further, as shown in FIGS. 5 to 8, the pivot point mechanism 20 and the hinge point 21 of the first arm section 31 are located in front of the foremost front axle 12. Between the hinge point 21 and the foremost front axle 12 The horizontal distance e is determined according to the specific situation. Since the hinge point 21 is located in front of the foremost front axle 12, a part of the weight of the cloth arm 30 can be carried on the foremost front axle 12, thereby facilitating the overall force balance of the pumping truck.

As shown in Figs. 3 to 6, the other arm sections of the cloth arm 30 may be disposed behind the cab 11. As shown in FIGS. 7 and 8, in order to increase the overall length of the cloth arm 30, thereby further expanding the working range of the cloth arm 30, preferably, at least the first arm section 31 is included in the cloth arm 30. There is also an arm section 32 that extends above the top plate 111 of the cab 11 when the cloth arm 30 is in the folded state. The arm sections 32 can be selected from other arm sections of the cloth arm 30 according to design requirements, for example, the fourth arm section and the fifth arm section can be selected as the arm section 32. Since the hinge point 21 of the turntable mechanism 20 and the first arm section 31 is located above the plane of the top plate 111 of the cab 11, even if the arm section 32 extends above the top plate 111 of the cab 11, it is possible to flexibly The cloth arm 30 operates.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: The pump provided by the present invention passes the hinge point 21 of the turntable mechanism 20 and the first arm section 31 with the turntable mechanism 20 The horizontal distance d between the swivel axes 23 is enlarged (the distance d in FIGS. 1 and 3 can be compared), so that the first arm strut 31 extends above the top plate 111 of the cab 11, thereby being affected by the overall length of the pump truck. Under the limited conditions, the space above the cab 11 is fully utilized, and the overall running space of the cloth arm 30 is expanded, so that the operation of the cloth arm 30 is more flexible, thereby saving energy consumption and improving the operation speed. Further, since the first arm section 31 extends above the top plate 111 of the cab 11, the shaft load of the chassis can be reasonably arranged. Moreover, since the first arm section 31 and the arm section 32 can be lengthened, the entire cloth arm 30 can be lengthened, so that the working range of the cloth arm 30 is more extensive.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Rights request

A pump truck comprising a chassis (10), a cab (11), a turntable mechanism (20) and a cloth arm (30), the cab (11), a turntable mechanism (20), and a cloth arm (30) is located on the chassis (10), the cloth arm (30) has a first arm section (31), and the turntable mechanism (20) is hinged to the first arm section (31) Forming a hinge point (21), characterized by a horizontal distance between the hinge point (21) and the axis of rotation (23) of the turntable mechanism (20)

(d) a horizontal distance between the rear plate (113) of the cab (11) and the axis of rotation (23) of the turntable mechanism (20), and the hinge point (21) is located in the driving Above the plane where the top plate (111) of the chamber (11) is located.

A pump truck according to claim 1, characterized in that the horizontal distance (d) between the hinge point (21) and the axis of rotation (23) of the turntable mechanism (20) is greater than 1100 mm.

The pump truck according to claim 2, characterized in that the horizontal distance (d) between the hinge point (21) and the axis of rotation (23) of the turntable mechanism (20) is greater than 1200 mm.

The pump truck according to claim 1, wherein the pump truck further comprises a driving cylinder (40), the two ends of the driving cylinder (40) and the rotary table mechanism (20) and the cloth respectively The first arm section (31) of the arm (30) is connected.

The pump truck according to claim 1, characterized in that the chassis (10) has a front axle (12).

6. Pump truck according to claim 5, characterized in that the hinge point (21) is located in front of the foremost front axle (12).

7. The pump truck according to claim 1, characterized in that, in addition to the first arm section (31), at least one arm section (32) of the cloth arm (30) is in the cloth Arm (30)