WO2012075795A1

WO2012075795A1 - Supporting device for mobile machine and mobile work machine

Info

Publication number: WO2012075795A1
Application number: PCT/CN2011/075536
Authority: WO
Inventors: 李核志; 卓志红
Original assignee: 湖南三一智能控制设备有限公司; 三一重工股份有限公司
Priority date: 2010-12-07
Filing date: 2011-06-09
Publication date: 2012-06-14
Also published as: CN102029979A

Abstract

A supporting device for mobile machine includes four telescopic legs (31, 32, 33, 34), a supporting base (1) fixed on a mobile machine chassis and two slide ways (21, 22) set on the supporting base (1). Every two telescopic legs are covered in each one slide way. The inner ends of the telescopic legs in the same slide way are formed with an embedding cover. The supporting device for mobile machine can reasonably utilize the space in the width direction of a mobile machine. A mobile work machine including said supporting device for mobile machine is also provided.

Description

The invention relates to a Chinese patent which is submitted to the Chinese Patent Office on December 7, 2010, the application number is 201010577118.2, and the invention name is "a mobile mechanical support device and a walking construction machinery". Priority of the application, the entire contents of which are incorporated herein by reference. Technical field

The invention relates to the technical field of engineering machinery, and in particular to a walking machine supporting device. The present invention also relates to a walking type construction machine having the above-described traveling machine support device.

Background technique

With the rapid development of China's economic construction, construction projects are increasing, and the use of walking construction machinery, especially concrete pump trucks, is becoming more and more widespread.

In the pumping condition, in order to ensure the stability of the concrete pump truck and prevent the concrete pump truck from shaking or tipping, a support device is usually provided on the chassis of the concrete pump truck, and the support device is used for supporting the concrete pump truck.

The support device generally comprises a support base and a plurality of telescopic legs, the telescopic legs generally comprising a left front telescopic leg, a right front telescopic leg, a left rear telescopic leg, and a right rear telescopic leg, each telescopic leg being disposed on the support seat, the outer side of each telescopic leg The legs are provided with legs, and the legs can be supported on the ground. When the concrete pump truck is in the pumping condition, each telescopic leg extends to the corresponding support position to support the concrete pump truck; when the concrete pump truck is in the driving condition, the telescopic legs are retracted to the position close to the support seat, Reduce the profile size of concrete pump trucks.

Please refer to FIG. 1. FIG. 1 is a schematic structural view of a typical supporting device in the prior art. As shown in Fig. 1, the supporting device comprises a supporting seat, four sleeve members 2, four telescopic legs 3, and four sleeve members 2, which are double X-shaped and fixed on the supporting base, diagonally a pair of sleeve members 2 are arranged in parallel and at the same height, four telescopic legs 3 are respectively set in the four sleeve members 2, and the outer ends of each of the telescopic legs 3 are provided with legs 4, .

When the concrete pump truck is in the pumping condition, the four telescopic legs 3 are extended simultaneously or separately. When the telescopic legs 3 are extended to the vertically extendable support device, the telescopic legs 3 and the outer end legs 4 are vertically moved to a stable state. The base surface is locked and the four telescopic legs 3 form a square support corner point to fix the concrete pump truck for pumping operation; when the pumping operation is completed, the four telescopic legs 3, according to the opposite work The process completes the transition from the extended state to the contracted state.

The support device needs to arrange four sleeve parts 2 on the support base, and the two sleeve parts 2 arranged diagonally are arranged in parallel. Due to the limited space in the width direction of the concrete pump truck, the respective sets are arranged diagonally. The two telescopic legs 3, it is difficult to make full use of the limited space in the width direction of the concrete pump truck, and in order to ensure a sufficient extension length, the support device takes up a large space in the width direction of the concrete pump truck, even beyond the road. The vehicle width standard stipulated by traffic regulations limits the use of concrete pump trucks.

Therefore, how to develop a support device with a small footprint is a technical problem that needs to be solved by those skilled in the art.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a traveling machine support apparatus which can rationally utilize a space in the width direction of a traveling machine, thereby saving space. Another object of the present invention is to provide a walking type construction machine having the above-described traveling machine support device.

In order to achieve the above first object, the present invention provides a traveling machine support device including a first telescopic leg, a second telescopic leg, a third telescopic leg, a fourth telescopic leg, and a support seat fixed on the chassis of the traveling machine. The first telescopic leg and the second telescopic leg are sleeved in the first sliding channel, and the third telescopic leg and the fourth telescopic leg are sleeved in the second sliding leg. The inner end of the first telescopic leg forms a nest with the inner end of the second telescopic leg, and the inner end of the third telescopic leg forms a nest with the inner end of the fourth telescopic leg.

Preferably, the first slide rail and the second slide rail are disposed in a cross shape.

Preferably, the first slide rail and the second slide rail are linear.

Preferably, the first slide rail and the second slide rail are all in an arc shape.

Preferably, the first slide rail and the second slide rail are in an arc shape, and the two are symmetrically disposed on the left and right sides of the support base, the first slide rail and the second slide rail. Each of the supports extends in the left-right direction.

Preferably, the first slide rail and the second slide rail are in an arc shape, and the two guide rails are respectively symmetrically disposed on the front and rear sides of the support base, and the first slide rail and the second slide rail are respectively The support base extends in the front-rear direction.

Preferably, the power driving device of the first telescopic leg comprises a gear driven by a hydraulic motor, a rack provided on a side portion of the first telescopic leg, the hydraulic motor being fixed to the support base, and the gear meshing with the rack.

Preferably, the power driving device of the first telescopic leg is a telescopic cylinder.

Preferably, the outer end of the first telescopic leg is provided with a positioning baffle.

The traveling machine support device provided by the present invention is provided with a first slide rail and a second slide rail. The first telescopic leg and the second telescopic leg are disposed in the first slide rail, the third telescopic leg, and the fourth telescopic joint The legs are disposed in the second slide, and the two telescopic legs located in the same slide form a nest.

When the walking construction machine is in the working state, the first telescopic leg, the second telescopic leg, the third telescopic leg, and the fourth telescopic leg can be extended from the first slide and the second slide simultaneously or separately until the extension is required When the walking type construction machine ends the working state, the first telescopic leg, the second telescopic leg, the third telescopic leg, and the fourth telescopic leg are retracted into the first slide or the second slide, and the inner end of the first telescopic leg The inner end of the second telescopic leg is nested, and the inner end of the third telescopic leg forms a nest with the inner end of the fourth telescopic leg.

The walking mechanical support device of the structure, the two telescopic legs in one slide can be nested, that is, one of the telescopic legs can be inserted into the other telescopic leg, and when the telescopic legs are in the contracted state, one telescopic leg is nested. In another telescopic leg. The structure only needs to have two slides on the support base, and the two telescopic legs in the same slide are nested in the slide way, and the space in the width direction of the walking construction machine can be reasonably utilized. When the telescopic legs have a certain length, they will not increase the dimension of the walking construction machinery in the width direction, so that the width of the walking construction machinery will not exceed the vehicle width standard stipulated by the road traffic regulations.

In order to achieve the above second object, the present invention provides a walking type construction machine comprising a chassis and the above-described traveling machine support device, the support base being fixed to the chassis. Since the above-described traveling machine supporting device has the above-described technical effects, the traveling type construction machine having the traveling machine supporting device should also have a corresponding technical effect.

DRAWINGS

1 is a schematic structural view of a typical supporting device in the prior art;

2 is a schematic structural view showing a walking mechanical support device in an extended state according to a first embodiment of the present invention;

Figure 3 is a schematic view showing the structure of the traveling mechanical support device of Figure 2 in a contracted state; 4 is a schematic structural view showing a walking mechanical support device in an extended state according to a second embodiment of the present invention;

Figure 5 is a schematic view showing the structure of the traveling mechanical support device of Figure 4 in a contracted state; wherein, Figures 1 - 5:

Support seat Γ, sleeve member 2\ telescopic leg 3, leg 4,;

Supporting seat 1, first slide 21, second slide 22, first telescopic leg 31, second telescopic leg 32, third telescopic leg 33, fourth telescopic leg 34, leg 4, positioning baffle 5, tooth Article 6, gear 7, hydraulic motor 8;

The first slide 2, the second slide 22, the first telescopic leg 3Γ, the second telescopic leg 32, the third telescopic leg 33, and the fourth telescopic leg 34.

detailed description

In order to make those skilled in the art better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

2, FIG. 3, FIG. 2 is a schematic structural view of the traveling machine supporting device according to the first embodiment of the present invention in an extended state; and FIG. 3 is a structural schematic view of the traveling mechanical supporting device of FIG. 2 in a contracted state.

As shown in FIG. 2 and FIG. 3, the traveling machine supporting device provided by the present invention comprises a support base 1, a first telescopic leg 31, a second telescopic leg 32, a third telescopic leg 33, and a fourth telescopic leg 34. The first slide 21 and the second slide 22 are disposed on the support base 1 , and the first slide 21 and the second slide 22 are crossed. The support base 1 is fixed on the chassis of the traveling construction machine. The first slide 21 and the second slide 22 can be located at different height positions.

The first telescopic leg 31 and the second telescopic leg 32 are disposed in the first slide 21, and the third telescopic leg 33 and the fourth telescopic leg 34 are disposed in the second slide 22, and the outer end of the first telescopic leg 31 is The outer ends of the two telescopic legs 32 are respectively provided with legs 4 which are arranged vertically, and the inner ends of the first telescopic legs 31 are nested with the inner ends of the second telescopic legs 32, as shown in FIG. 1 and FIG. In the unfolded state, the inner end of the first telescopic leg 31 and the inner end of the second telescopic leg 32 are in a separated state. In the contracted state, the inner end of the first telescopic leg 31 and the inner end of the second telescopic leg 32 are nested with each other. Specifically, the radial dimension of the first telescopic leg 31 may be smaller, the radial dimension of the second telescopic leg 32 may be larger, and the radial direction of the second telescopic leg 32 may be formed to form a suit with the first telescopic leg 31. Hole, first telescopic leg 31 The inner end can be nested within the hole.

It can be understood that the inner end of the first telescopic leg 31 can always be nested with the inner end of the second telescopic leg 32, that is, when in the unfolded state, the inner end of the first telescopic leg 31 is also nested in the second telescopic leg 32. In the hole, this structure limits the effective length at which the first telescopic leg 31 and the second telescopic leg 32 extend. This configuration is not recommended, but such a structure should also be within the scope of the present invention.

The third telescopic leg 33 and the fourth telescopic leg 34 are nested in the second slide 22, and the specific embodiment is similar to the embodiment in which the first telescopic leg 31 and the second telescopic leg 32 are nested in the first slide 21 , no more detailed description here.

When the walking type construction machine is in the working state, the first telescopic leg 31, the second telescopic leg 32, the third telescopic leg 33, and the fourth telescopic leg 34 can be simultaneously or separately from the first slide under the action of the power driving device. 21, the second slide 22 extends until it reaches the desired position; when the walking construction machine ends the working state, under the action of the power driving device, the first telescopic leg 31, the second telescopic leg 32, the third telescopic The leg 33 and the fourth telescopic leg 34 are retracted into the first slide 21 or the second slide 22, and the inner end of the first telescopic leg 31 forms a nest with the inner end of the second telescopic leg 32, and the third telescopic leg 33 The inner end forms a nest with the inner end of the fourth telescopic leg 34.

The walking mechanical support device of the structure, the two telescopic legs in one slide can be nested, that is, one of the telescopic legs can be inserted into the other telescopic leg, and when the telescopic legs are in the contracted state, one telescopic leg is nested. In another telescopic leg. In this structure, only two slide rails are provided on the support base 1. The two telescopic legs in the same slide rail are nested in the slide rail, and the space in the width direction of the walking construction machine can be reasonably utilized. While ensuring that the telescopic legs have a certain length, the width of the walking construction machinery is not increased, so that the width of the walking construction machinery does not exceed the vehicle width standard stipulated by the road traffic regulations.

In this embodiment, the first slide 21 and the second slide 22 are all in an arc shape. Accordingly, the first telescopic leg 31, the second telescopic leg 32, the third telescopic leg 33, and the fourth telescopic leg 34 are also The shape of the arc is not limited to the shape of the first slide 21 and the second slide 22, and the first slide 21 and the second slide 22 may be disposed in a straight line as long as the first telescopic leg 31 and the second telescopic The leg 32, the third telescopic leg 33, and the fourth telescopic leg 34 can be freely extended and contracted.

The first telescopic leg 31, the second telescopic leg 32, the third telescopic leg 33, and the fourth telescopic leg 34 are divided into There is no corresponding power drive device, and the telescopic legs can be telescopically driven by the power drive device. Hereinafter, the power driving device on the first telescopic leg 31 will be taken as an example, and the cartridge will be introduced.

In a specific solution, the power driving device for driving the first telescopic legs 31 includes a gear 7 and a rack 6. The rack 6 is disposed on the side of the first telescopic leg 31, and the rack 6 is along the axial direction of the first telescopic leg 31. The direction is extended, the length of the rack 6 can be determined according to the telescopic stroke of the first telescopic leg 31, the gear 7 is driven by a hydraulic motor 8 fixed to the support base 1, the gear 7 meshes with the rack 6, and the positive and negative of the hydraulic motor 8 The extension can retract or retract the first telescopic leg 31. Compared with the conventional telescopic cylinder, the power driving device of this structure has the advantages of a structural unit and a low cost.

It can be understood that a conventional telescopic cylinder can also be used as the power driving device for driving the first telescopic legs 31. Any device that can drive the first telescopic legs 31 to perform the telescopic movement should be within the scope of the present invention.

In a preferred embodiment, when the first telescopic leg 31 is contracted, in order to prevent the first telescopic leg 31 from being excessively contracted, a rigid collision occurs with the second telescopic leg 32, and a positioning baffle 5 may be disposed at an outer end of the first telescopic leg 31. When the outer end of the first telescopic leg 31 is contracted to the side of the support base 1, the positioning baffle 5 will abut against the side of the support base 1, so that the first telescopic leg 31 does not continue to contract, and the first telescopic leg 31 can be effectively protected. .

Similarly, the second telescopic leg 32, the third telescopic leg 33, and the fourth telescopic leg 34 may be provided with a positioning baffle 5.

In the above embodiment, the first slide 21 and the second slide 22 are arranged in a cross shape, and the two telescopic legs in the diagonal position are located in the same slide. The traveling mechanical support device provided by the present invention is not limited thereto. The two adjacent telescopic legs can also be located in the same slide. The following embodiments are described in the case where the two telescopic legs on the same side are located on the same slide.

Referring to FIG. 4, FIG. 5, FIG. 4 is a schematic structural view of the traveling machine supporting device in an extended state according to a second embodiment of the present invention; and FIG. 5 is a structural schematic view of the traveling mechanical supporting device of FIG. 4 in a contracted state.

As shown in FIG. 4 and FIG. 5, the traveling machine supporting device includes a supporting seat. The supporting seat is provided with a first sliding path 2Γ, a second sliding path 22, a first sliding path 2Γ, and a second sliding path 22, all of which are arcs. The first slide 2 Γ and the second slide 22 are symmetrically disposed on the left and right right sides of the support base, and the first slide 2 Γ The second slide 22 extends in the left-right direction of the support base, and the shape of the first telescopic leg 3Γ and the second telescopic leg 32 matches the first slide 2Γ, that is, the first telescopic leg 3Γ and the second telescopic leg 32. And also in the shape of an arc, the first telescopic leg 3Γ and the second telescopic leg 32 can be extended and contracted along the first slide 2Γ under the driving of the corresponding power driving device, and the inner end of the first telescopic leg 3Γ The inner end of the two telescopic legs 32 can be nested, that is, when the first telescopic leg 3Γ and the second telescopic leg 32 are both in the contracted state, the first telescopic leg 3Γ can be nested in the second telescopic leg 32.

Similarly, the second slide 22, the third telescopic leg 33, and the fourth telescopic leg 34 are disposed in a manner similar to that of the first slide 2Γ, the first telescopic leg 3Γ, and the second telescopic leg 32, This is no longer detailed.

The remaining specific implementation process of this embodiment is similar to the above embodiment, and will not be described in detail herein.

In the above embodiment, the two telescopic legs on one of the left and right sides of the support base are nested in the same slide. The traveling mechanical support device provided by the present invention is not limited thereto, and is located at the front and rear sides of the support base. The two telescopic legs on one side can also be nested in the same slide. For example, the first slide rail and the second slide rail can be arc-shaped or linear. The first slide rail and the second slide rail are symmetrically disposed on the first slide rail and the second slide rail. The first slide rail and the second slide rail may extend toward the front-back direction or the left-right direction of the support base, and the two telescopic legs in each slide rail may form a nest. The solution should also be in the present invention. Within the scope of protection.

The present invention provides a walking type construction machine comprising a chassis and the above-described traveling machine support device, the support base being fixed to the chassis. Since the above-described traveling machine supporting device has the above-described technical effects, the traveling type construction machine having the traveling machine supporting device should also have a corresponding technical effect.

The above description is only a description of a preferred embodiment of the invention. It should be noted that due to the finiteness of the textual expression, there is an infinitely specific structure objectively, and those skilled in the art will not deviate from the principles of the present invention. A number of improvements and retouchings may also be made, and such improvements and refinements are also considered to be within the scope of the present invention.

Claims

Rights request

A walking machine support device comprising a first telescopic leg (31), a second telescopic leg (32), a third telescopic leg (33), a fourth telescopic leg (34) and a support fixed to the chassis of the traveling machine The seat (1) is characterized in that: the support seat (1) is provided with a first slide (21), a second slide (22), the first telescopic leg (31) and the second telescopic leg ( 33) sleeved in the first slide (21), the third telescopic leg (33), the fourth telescopic leg (34) is sleeved in the second slide (22); the inner end of the first telescopic leg (31) The inner end of the second telescopic leg (32) is nested, and the inner end of the third telescopic leg (33) is nested with the inner end of the fourth telescopic leg (33).

The traveling machine support device according to claim 1, wherein the first chute (21) and the second chute (22) are arranged in a cross shape.

The traveling machine support device according to claim 2, wherein the first chute (21) and the second chute (22) are linear.

The traveling machine support device according to claim 2, wherein the first slide (21) and the second slide (22) each have an arc shape.

The traveling machine support device according to claim 1, wherein the first slide (21) and the second slide (22) are both arc-shaped, and the two are symmetrically disposed respectively. On the left and right sides of the support base (1), the first slide rail (21) and the second slide rail (22) respectively extend in the left-right direction of the support base (1).

The traveling machine support device according to claim 1, wherein the first slide (21) and the second slide (22) are each in an arc shape, and the two are symmetrically disposed respectively. On the front and rear sides of the support base (1), the first slide rail (21) and the second slide rail (22) respectively extend in the front-rear direction of the bracket 7| seat (1).

The traveling machine supporting device according to any one of claims 1 to 6, wherein the power driving device of the first telescopic leg (31) comprises a gear (7) driven by a hydraulic motor (8), a rack (6) disposed on a side of the first telescopic leg (31), the hydraulic motor (8) and the support base

(1) Fixed, the gear (7) meshes with the rack (6).

The traveling machine support device according to any one of claims 1 to 6, wherein the power driving device of the first telescopic leg (31) is a telescopic cylinder.

The traveling machine support device according to claim 1, wherein the first A positioning baffle (5) is provided at an outer end of the telescopic leg (31).

10. A walking type construction machine, comprising: a chassis and the traveling machine support device according to any one of claims 1-9, wherein the support base (1) is fixed to the chassis.