WO2013026284A1

WO2013026284A1 - Crawler chassis telescopic mechanism and crawler piling machinery

Info

Publication number: WO2013026284A1
Application number: PCT/CN2012/074360
Authority: WO
Inventors: 胡奇; 陈志强; 李鹏坡
Original assignee: 湖南三一智能控制设备有限公司; 三一重机有限公司
Priority date: 2011-08-23
Filing date: 2012-04-19
Publication date: 2013-02-28
Also published as: CN202193135U

Abstract

A crawler chassis telescopic mechanism; a telescopic guide hole (10) is formed on a chassis (1); the telescopic guide hole (10) is provided with a telescopic arm (3) therein; the sidewall of the telescopic arm (3) is provided with a first stopper thereon; the wall of the telescopic guide hole (10) is provided with a second stopper thereon for backstopping the first stopper from extension. Also disclosed is a crawler piling machine provided with the crawler chassis telescopic mechanism thereon. By adopting the solution, the inner space of a dismounting device will not be taken up, nor need the left and right extension of the dismounting device be debugged. Furthermore, the present invention is simple to manufacture, reduces costs, and is easy to install.

Description

Crawler-type chassis retractable mechanism and crawler-type pile-driving machine This application claims to be submitted to the China Patent Office on August 23, 2011, the application number is 201120308214.7, and the invention is entitled "Crawler-type chassis retractable mechanism and crawler-type pile-driving machinery". Priority of the application, the entire contents of which are incorporated herein by reference.

Technical field

The present invention relates to the field of construction machinery, and more particularly to a crawler type chassis retractable mechanism and a crawler type pile driving machine.

Background technique

At present, the extension limit of the telescopic arm of the hydraulic excavator is mainly limited by the mechanical rod. The rod for the limit is arranged to extend to the left and right in the middle of the chassis frame. The shortcomings are: 1. Occupy the internal space of the walking device, affecting the attachment space such as the hydraulic circuit of the traveling device. 2. The installation is complicated, and it is necessary to debug the left and right telescopic distance, which affects working hours.

Summary of the invention

SUMMARY OF THE INVENTION The present invention is directed to a crawler-type chassis retractable mechanism and a track-type pile-driving machine to solve at least one of the above problems in the prior art.

According to an aspect of the present invention, a crawler-type chassis telescopic mechanism is provided. A telescopic guide hole is formed on the chassis, and a telescopic arm is disposed in the telescopic guide hole. The first limit member is disposed on the side wall of the telescopic arm. A second limiting member for stopping the extension of the first limiting member is disposed on the wall of the guiding hole.

Further, the first limiting member is a first blocking block and is fixedly mounted on the telescopic arm.

Further, the second limiting member is a second blocking block, and the second blocking member is detachably mounted on the hole wall of the telescopic guiding hole; the second blocking block is located outside the first blocking block.

Further, the second block is mounted on the hole wall of the telescopic guide hole by screws or bolts; a plurality of adjustment mounting holes are axially disposed on the hole wall of the telescopic guide hole, and the screw or the bolt is selectively matched with the adjustment mounting hole .

Further, an elastic damping layer is disposed on the first stopper and/or the second stopper. Further, a limiting guiding plate is further mounted on the wall of the telescopic guiding hole, and the limiting guiding plate is located inside the second blocking block, and the thickness of the limiting guiding plate is smaller than the thickness of the second blocking block.

Further, the top side wall of the telescopic arm is horizontally disposed, and the hole wall of the telescopic guide hole has a horizontal side wall portion parallel to the top side wall of the telescopic arm; the first block is mounted on the top side wall of the telescopic arm, and the limit is The guide plate and the second stopper are mounted on the horizontal side wall portion of the telescopic guide hole.

Further, the telescopic arm further includes a slanting side wall connected to both sides of the top side wall, and the two sides of the limiting guide plate extend with a bent portion, and the bent portion cooperates with the inclined side wall of the telescopic arm.

Further, a portion of the telescopic arm that is located outside the telescopic guide hole is further provided with a baffle.

According to another aspect of the present invention, a track-type pile-driving machine is provided, which is provided with the crawler-type chassis telescopic mechanism described above, wherein the chassis is further provided with a swing mechanism, and the outer end of the telescopic arm is connected with the crawler support beam. A track is placed on the track support beam.

According to the crawler type chassis telescopic mechanism of the present invention, a first limiting member is disposed on the telescopic arm, a second limiting member is disposed on the wall of the telescopic guiding hole, and the second limiting member is configured to stop the first limiting member The extended technical solution can obtain the required limit distance by setting the relative positions of the two limiting members on the telescopic arm and the telescopic guiding hole. That is, when the telescopic arm is extended, the first limiting member projects outwardly with the telescopic arm until it is stopped by the second limiting member, so as to achieve the limit in the extending direction of the telescopic arm, and the purpose of extending the chassis to the left and right is obtained. Since the first limiting member and the second limiting member for controlling the extending distance of the telescopic arm are disposed in the inner space of the telescopic guiding hole, the internal space of the traveling device is not occupied, and the first limiting member and the second limit are adopted. The cooperation of the position piece can quickly and effectively extend the telescopic arm into position, and does not need to debug the telescopic arm left and right telescopic distance, which saves debugging time and improves construction efficiency.

DRAWINGS

The accompanying drawings, which are incorporated in the claims In the drawing:

1 is a schematic plan view showing a top view structure of a crawler type chassis retractable mechanism of the present invention; FIG. 2 is a view schematically showing the A-A cross-sectional structure of FIG. 1;

Fig. 3 schematically shows the BB cross-sectional structure of Fig. 2. detailed description

It should be noted that the embodiments in the present application and the features in the embodiments 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. 1 to 3 are schematic views showing the structure of a crawler-type chassis telescopic mechanism according to the present invention. As shown, the chassis 1 of the crawler-type chassis retractable mechanism is formed with a telescopic guide hole 10, and a telescopic guide hole 10 The inner sleeve is provided with a telescopic arm 3, and the telescopic arm 3 is telescopically moved along the telescopic guide hole 10 under the driving of the driving mechanism. The telescopic guide holes 10 are generally formed by guide rails on the chassis. The outer end of the telescopic arm 3 is usually connected with a crawler support beam, and the crawler support beam is provided with a crawler belt. When the crawler type construction machine is constructed, the extension of the telescopic arm can make the crawler belt on both sides of the vehicle body reach a larger span. Ensure stable support during the construction process. It should be noted that the chassis 1 usually has four telescopic arms, and two telescopic arms on the same side are a group. The two sets of telescopic arms have opposite telescopic directions, and each set of telescopic arms supports a crawler support beam for convenience of explanation. In this embodiment, only one of the telescopic arms will be described as an example.

As can be seen in Figure 2, the side wall of the telescopic arm 3 is provided with a first stop, preferably a first stop 5. A second stopper for stopping the extension of the first stopper 5 is disposed on the wall of the telescopic guide hole 10, and the second stopper is preferably the second stopper 7. The second stopper 7 is located outside the first stopper 5 to stop the first stopper 5. By setting the relative positions of the first block 5 and the second block 7 on the telescopic arm 3 and the telescopic guide hole 10, the required limit distance can be obtained, and the limit of the telescopic arm 3 in the extending direction can be realized, so that the chassis 1 is Stretch to the required span. Figure 2 shows the extreme position in which the telescopic arm 3 projects. It is easily understood that there is a gap between the telescopic arm 3 and the wall of the telescopic guide hole 10 which can accommodate the first stopper 5 and the second stopper 7.

In addition, in the above embodiment, although the first limiting member and the second limiting member are both exemplified by the stopper, in the actual application process, the first limiting member and the second limiting member may also have Other embodiments may be used to limit the extended position of the telescopic arm 3 as long as it is used in combination.

Preferably, the portion of the telescopic arm 3 located outside the telescopic guide hole 10 is further provided with a baffle 6 or other stopper. The baffle 6 is stopped by the shoulder of the telescopic guide hole 10 for limiting the retraction of the telescopic arm 3. length.

Preferably, the first stopper 5 is fixedly mounted on the telescopic arm 3 by welding. The second stopper 7 is detachably mounted on the wall of the hole of the telescopic guide hole 10, for example, by bolts 9. In the first The second stopper 7 needs to stop the extension of the first stopper 5, the second stopper 7 needs to be disposed outside the first stopper 5, and the second stopper 7 is detachably provided, so that the installation of the telescopic arm 3 and Disassembly is easy to implement. As shown in FIG. 1, in order to securely mount the second stopper 7 on the wall of the telescopic guide hole 10, the second stopper 7 is linked by four bolts 9 which are bored on the telescopic guide hole 10. Of course, it is also possible to connect the second stopper 7 to the wall of the hole of the telescopic guide hole 10 by screws.

Preferably, in order to adjust the extension length of the telescopic arm 3, a plurality of adjustment mounting holes for threading the bolts 9 may be axially disposed on the hole wall of the telescopic guide hole 10, and the bolts 9 are selectively and adjustably mounted. The hole is engaged to adjust the axial position of the second stopper 7, thereby limiting the extension length of the telescopic arm 3.

Preferably, in order to avoid collision noise when the first stopper 5 is stopped by the second stopper 7, an elastic shock absorbing layer may be provided on the first stopper 5 and/or the second stopper 7. For example, the elastic damping layer may be respectively wrapped on the first stopper 5 and the second stopper 7, or may be respectively disposed on the colliding side of the first stopper 5 and the second stopper 7.

Preferably, in conjunction with FIGS. 2 and 3, a finite guide plate 2 is mounted on the wall of the telescopic guide hole 10, and the limit guide plate 2 is located inside the second block 7. When the second stopper 7 is mounted, the outer side of the limit guide plate 2 forms a step for restricting the mounting position of the second stopper 7, so that the second stopper 7 can be quickly installed in position. It is easy to understand that the thickness of the limit guide plate 2 needs to be smaller than the thickness of the second block 7 so as not to affect the stop action of the second block 7 on the first block 5.

Preferably, as shown in FIG. 3, the upper portion of the telescopic arm 3 has a trapezoidal shape, and the upper portion of the telescopic arm 3 has a horizontally disposed top side wall 30, and the top side wall 30 has symmetric side walls 32 on both sides. The hole wall of the telescopic guide hole 10 has a horizontal side wall portion 12 parallel to the top side wall 30 of the telescopic arm 3. A gap is formed between the top side wall 30 of the telescopic arm 3 and the horizontal side wall portion 12 of the telescopic guide hole 10, and the first stopper 5 is mounted on the top side wall 30 of the telescopic arm 3 by the gap, and the limit guide plate 2 is And the second stopper 7 is mounted on the horizontal side wall portion 12 of the telescopic guide hole 10. The lower part of the telescopic arm has a rectangular shape and is slidably engaged with the lower part of the telescopic guide air. Preferably, the bent guides 20 are extended on both sides of the limit guide plate 2, and the bent portions 20 cooperate with the inclined side walls 32 of the telescopic arms 3 to prevent the telescopic arms 3 from shaking in the telescopic guide holes 10. In summary, the technical solution of the present invention does not occupy the internal space of the getting-off vehicle, and does not need to be debugged for the left and right extension of the traveling device, and has the advantages of manufacturing a single cylinder, reducing costs, and facilitating installation.

The present invention also provides a crawler type pile driving machine, which is provided with the crawler type chassis telescopic mechanism described above, wherein the chassis 1 is further provided with a swing mechanism 4, and the outer end of the telescopic arm 3 is connected with the crawler support beam, and the crawler support beam The upper set has a track.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are included in the spirit and scope of the present invention, should be included in the present invention. Within the scope of protection.

Claims

A crawler-type chassis telescopic mechanism, the chassis (1) is formed with a telescopic guide hole (10), and the telescopic guide hole (10) is sleeved with a telescopic arm (3), wherein A first limiting member is disposed on a side wall of the telescopic arm (3), and a second limiting member for stopping the extension of the first limiting member is disposed on a hole wall of the telescopic guiding hole (10).

The crawler-type chassis telescopic mechanism according to claim 1, wherein the first stopper is a first stopper (5) fixedly mounted on the telescopic arm (3).

The crawler-type chassis telescopic mechanism according to claim 2, wherein the second limiting member is a second stopper (7), and the second stopper (7) is detachably mounted at the The wall of the telescopic guide hole (10) is located; the second block (7) is located outside the first block (5).

The crawler-type chassis telescopic mechanism according to claim 3, wherein the second stopper (7) is mounted on the hole wall of the telescopic guide hole (10) by screws or bolts (9); A plurality of adjustment mounting holes are axially disposed on the wall of the telescopic guide hole (10), and the screws or bolts (9) are selectively engageable with the adjustment mounting holes.

The crawler-type chassis telescopic mechanism according to claim 3, characterized in that the first stopper (5) and/or the second stopper (7) are provided with an elastic shock absorbing layer.

The crawler-type chassis telescopic mechanism according to claim 3 or 5, wherein a limit guiding plate (2) is further mounted on the hole wall of the telescopic guiding hole (10), and the limiting guiding plate ( 2) Located inside the second stopper (7), and the thickness of the limiting guide plate (2) is smaller than the thickness of the second stopper (7).

The crawler-type chassis telescopic mechanism according to claim 6, wherein the top side wall (30) of the telescopic arm (3) is horizontally disposed, and the hole wall of the telescopic guide hole (10) has a space a horizontal side wall portion (12) parallel to the top side wall (30) of the telescopic arm (3); the first stopper (5) is mounted on the top side wall (30) of the telescopic arm (3) The limit guide plate (2) and the second stop (7) are mounted on the horizontal side wall portion (12) of the telescopic guide hole (10).

The crawler-type chassis telescopic mechanism according to claim 7, wherein the telescopic arm (3) further comprises a diagonal side wall (32) connected to both sides of the top side wall (30), Limit A bent portion (20) extends from both sides of the guide plate (2), and the bent portion (20) cooperates with the inclined side wall (32) of the telescopic arm (3).

The crawler-type chassis telescopic mechanism according to any one of claims 1 to 5, wherein a portion of the telescopic arm (3) located outside the telescopic guide hole (10) is further provided with a baffle

(6).

A crawler-type pile-driving machine, characterized in that the crawler-type chassis telescopic mechanism according to any one of claims 1 to 9 is provided, wherein the chassis (1) is further provided with a swing mechanism (4) The outer end of the telescopic arm (3) is connected to the crawler support beam, and the crawler support beam is sleeved with a crawler belt.