CN108716229B

CN108716229B - engineering vehicle

Info

Publication number: CN108716229B
Application number: CN201810836554.3A
Authority: CN
Inventors: 赵斌; 管培鹏; 刘玉川
Original assignee: Jiangsu Xugong Construction Machinery Research Institute Co ltd
Current assignee: Jiangsu Xugong Construction Machinery Research Institute Co ltd
Priority date: 2018-07-26
Filing date: 2018-07-26
Publication date: 2023-09-05
Anticipated expiration: 2038-07-26
Also published as: CN108716229A

Abstract

The application discloses an engineering vehicle. The engineering vehicle comprises a chassis, a bearing platform arranged on the chassis, a loading platform, an implement platform and an implement platform, wherein the loading platform and the implement platform are arranged on the bearing platform at intervals, the implement platform is used for placing at least two implements so as to replace the implements of the working arm of the loading platform, the engineering vehicle has a working state and an implement replacement state, and the implement platform is rotatably arranged relative to the bearing platform so that the positions of the working arm and the implements to be replaced in the at least two implements are corresponding when the implements are in the replacement state. According to the engineering vehicle, the tool platform special for placing tools is arranged on the bearing platform, and the tool platform can rotate relative to the bearing platform, so that when tools need to be replaced, the tool platform is controlled to rotate, the working arm corresponds to the position of the tools to be replaced on the tool platform, the working arm is connected with the tools to be replaced, the tool replacement time is shortened, and the working efficiency is effectively improved.

Description

Engineering vehicle

Technical Field

The application relates to the technical field of engineering machinery, in particular to an engineering vehicle.

Background

With the development of excavator technology and the continuous innovation of tools, the working arm of the excavator can be provided with a plurality of tools such as breaking hammers, hydraulic shears, stone grabbers, tamping machines, rock saws and the like so as to meet different working demands. Typically, a work arm will work with one implement for a longer period of time after the implement is replaced without requiring frequent replacement of other implements. However, in some special cases, such as emergency rescue, the working arm needs to be frequently replaced in a short time according to different working conditions, which requires that the engineering vehicle carries multiple tools.

The various machines of engineering vehicles are mostly fixed on the frame through ropes, slings and the like, and when the machines need to be replaced, the disassembly and the assembly are needed to be completed manually, so that the operation efficiency is seriously affected, and excessive rescue time is occupied. And a plurality of machines of some engineering vehicles are also required to be equipped with special auxiliary vehicles for transportation, so that the cost is high and the application range of the engineering vehicles is reduced.

Disclosure of Invention

The application aims to provide an engineering vehicle, which is convenient for replacing tools.

The present application provides an engineering vehicle, comprising:

a chassis;

the bearing platform is arranged on the chassis;

the loading and machine tool platforms are arranged on the bearing platform at intervals, the machine tool platforms are used for placing at least two machine tools so that the machine tools can be replaced by the working arms of the loading machine tools, the engineering vehicle is provided with a working state and a machine tool replacing state, and the machine tool platforms are rotatably arranged relative to the bearing platform so that the positions of the working arms, which are used for replacing the machine tools, of the at least two machine tools correspond to the positions of the machine tools to be replaced in the machine tool replacing state.

In some embodiments, the implement platform rotates about a central axis of the implement platform.

In some embodiments, at least two implements are each disposed substantially equidistant from the central axis.

In some embodiments, the work vehicle further comprises an implement securing device disposed on the implement platform, the work vehicle having an operating state in which the implement securing device is for securing the implement to prevent the implement from being detached from the implement platform and an implement change state; in the implement change state, the implement securing device is used to release an implement to be changed of the at least two implements to connect the work arm with the implement to be changed.

In some embodiments, the implement securing device includes an implement bracket fixedly disposed on the implement platform and a locking device for cooperating with a securing member on the implement to secure the implement to the implement bracket in an operative state; in the tool change state, the locking device is used to disengage the fasteners on the tool.

In some embodiments, the locking device includes a latch hook rotatably disposed on the implement support, the latch hook having a recess for engaging a securing member on the implement, and a driving device for driving the latch hook to rotate to cause the recess to restrict or disengage the securing member.

In some embodiments, the driving device comprises a telescopic mechanism, the locking device further comprises a connecting rod arranged between the telescopic mechanisms, the telescopic mechanism comprises a cylinder fixedly arranged on the tool support and a telescopic rod telescopically arranged relative to the cylinder, a first end of the connecting rod is connected with the telescopic rod, and a second end of the connecting rod is connected with the lock hook to drive the lock hook to rotate.

In some embodiments, the telescopic mechanism is a single acting cylinder, and the driving device further comprises a spring, one end of the spring is connected with the tool support, and the other end of the spring is connected with a telescopic rod of the single acting cylinder.

In some embodiments, the locking device comprises two symmetrically arranged locking hooks, and the driving device drives the two locking hooks to rotate simultaneously.

In some embodiments, the work vehicle further includes a bracket device disposed on the implement platform for supporting the work arm of the boarding vehicle when the work vehicle is in a driving state.

Based on the technical scheme provided by the application, the engineering vehicle comprises a chassis, a bearing platform arranged on the chassis, an upper vehicle and an implement platform, wherein the upper vehicle and the implement platform are arranged on the bearing platform at intervals, the implement platform is used for placing at least two implements so as to replace the implements of the working arm of the upper vehicle, the engineering vehicle has a working state and an implement replacement state, and the implement platform is rotatably arranged relative to the bearing platform so that the positions of the working arm and the implements to be replaced in the at least two implements are corresponding in the implement replacement state. According to the engineering vehicle, the tool platform special for placing tools is arranged on the bearing platform, and the tool platform can rotate relative to the bearing platform, so that when tools need to be replaced, the tool platform is controlled to rotate, the working arm corresponds to the position of the tools to be replaced on the tool platform, the working arm is connected with the tools to be replaced, the tool replacement time is shortened, and the working efficiency is effectively improved. And the whole machine tool replacement process has lower requirements on the replacement site, thereby improving the applicability range of the engineering vehicle.

Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic view of a construction vehicle in a transportation state according to an embodiment of the present application;

FIG. 2 is a schematic view of a construction vehicle according to an embodiment of the present disclosure in an implement change state;

FIG. 3 is a schematic top view of the implement platform and implement of FIG. 1;

FIG. 4 is a schematic illustration of the implement securing device of FIG. 1;

fig. 5 is a schematic structural diagram of a control principle of an engineering vehicle according to an embodiment of the present application.

Each reference numeral represents:

1. a working arm; 2. a load-bearing platform; 3. a chassis; 4. a loading frame; 5. a tool platform; 6. a tool set; 61. a first implement; 62. a second tool; 63. a third tool; 64. a fourth tool; 7. a slewing drive device; 8. a bracket arm device; 9. a tool fixing device; 91-an implement support; 92. a telescopic cylinder; 93. a spring; 94. a connecting rod; 95. a latch hook; 11. a rotation angle detection device; a-fixing pin.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 4, the construction vehicle according to the embodiment of the present application includes:

a chassis 3;

the bearing platform 2 is arranged on the chassis 3;

the loading and implement platform 5, the loading and implement platform 5 is arranged on the bearing platform 2 at intervals, and the implement platform 5 is used for placing at least two implements so that the working arm 1 of the loading can replace the implements. The working vehicle has a working state and an implement change state, the implement platform 5 being rotatably arranged relative to the carrying platform 2 such that in the implement change state the working arm 1 corresponds to the position of the implement to be changed of the at least two implements.

The engineering vehicle of the embodiment of the application is provided with the tool platform 5 specially used for placing tools on the bearing platform 2, and the tool platform 5 can rotate relative to the bearing platform 2, so that when tools need to be replaced, the tool platform 5 is controlled to rotate, the working arm 1 corresponds to the position of the tools to be replaced on the tool platform 5, the working arm 1 is connected with the tools to be replaced, the tool replacement time is shortened, and the working efficiency is effectively improved. And the whole machine tool replacement process has lower requirements on the replacement site, thereby improving the applicability range of the engineering vehicle.

The chassis 3 of the present embodiment is an automobile chassis. And the boarding of the present embodiment includes a frame 4. The frame 4 is rotatably arranged on the carrying platform 2.

In this embodiment, the implement platform 5 rotates about a central axis of the implement platform 5. The arrangement can reduce the occupied area of the tool platform 5 on the basis of ensuring that each tool can be positioned below the working arm 1 in the rotation process of the tool platform 5, so that the whole engineering vehicle is more compact in structure.

Since the implement platform 5 of the present embodiment rotates around its own central axis, in order to ensure that each implement can be located under the working arm 1 and can be connected to the working arm 1 during rotation, as shown in fig. 3, at least two implements of the present embodiment are all disposed substantially equidistantly from the central axis. Specifically, the implement platform 5 of the present embodiment is circular.

Fig. 3 exemplarily shows that the set of tools 6 comprises four tools, a first tool 61, a second tool 62, a third tool 63 and a fourth tool 64, respectively. Specifically, each implement may be a breaking hammer, hydraulic shear, rock grab, tamper, bucket, or the like.

In this embodiment, the work vehicle further comprises a swing drive 7 for driving the implement platform 5 in rotation. In order to measure the rotation angle of the implement platform 5 in real time, the working vehicle of the present embodiment further includes a rotation angle detection device 11 for detecting the rotation angle of the implement platform 5.

Since each implement on the implement platform 5 has its own set position, when it is necessary to replace a certain implement to control the rotation of the implement platform 5, it is necessary to control the rotation of the implement platform 5 to a target rotation angle corresponding to the implement.

In order to precisely control the rotation of the implement platform 5, as shown in fig. 5, the engineering vehicle of the present embodiment includes a swing control valve group 10 disposed with the controller 12 coupled thereto, and the swing control valve group 10 is used to control the swing driving device 7 to act. The controller 12 controls the swing control valve group 10 to operate according to the actual swing angle of the tool platform 5 and the target swing angle measured by the swing angle detecting device 11, so as to control the swing driving device 7 to operate to rotate the tool platform 5 to the target swing angle. The engineering vehicle of the embodiment precisely controls the rotation of the tool platform 5 through the feedback control process, so that the working efficiency is improved.

As shown in fig. 4, the working vehicle of the present embodiment further includes an implement fixing device 9 provided on the implement platform 5. The work vehicle has an operating state in which the implement securing device 9 is used to secure the implement against removal from the implement platform 5 and an implement change state. In the tool change state, the tool fixing device 9 is used for releasing the tool to be changed of the at least two tools to connect the working arm 1 with the tool to be changed.

Specifically, the implement securing device 9 includes an implement bracket 91 and a locking device. The implement carrier 91 is fixedly disposed on the implement platform 5. In the working state, the locking device is used for being matched and locked with a fixing piece on the machine tool to fix the machine tool on the machine tool bracket 91; in the tool change state, the locking device is used to disengage the fasteners on the tool. The locking device of this embodiment has an open state in which the locking device is disengaged from the securing member on the implement so that the implement can be removed from the implement carrier 91; in the closed state, the locking device is cooperatively locked with a fastener on the implement to prevent the implement from being removed.

As shown in fig. 4, in the present embodiment, the locking device includes a lock hook 95 rotatably provided on the tool holder 91, and a driving device for driving the lock hook 95 to rotate, the lock hook 95 having a recess for engaging with a fixing member on the tool, the driving device driving the lock hook 95 to rotate so that the recess is restricted or disengaged from the fixing member.

The driving device comprises a telescopic mechanism. The locking device further comprises a connecting rod 94 arranged between telescopic mechanisms, the telescopic mechanisms comprise cylinder barrels fixedly arranged on the tool support 91 and telescopic rods telescopically arranged relative to the cylinder barrels, a first end of the connecting rod 94 is connected with the telescopic rods, and a second end of the connecting rod 94 is connected with the lock hooks 95 to drive the lock hooks 95 to rotate. The telescopic action of the telescopic mechanism of the embodiment is automatically controlled, so that the time for fixing and dismounting the machine tool is reduced, and the automation is improved.

The link 94 of the present embodiment has an arc-shaped structure. The fixing member on the machine tool of this embodiment is a fixing pin a. The first end of the latch hook 95 is hinged to the tool holder 91, the second end of the latch hook 95 is connected to the link 94, and the third end of the latch hook 95 is provided with a recess cooperating with a fixing pin a on the tool.

The telescopic mechanism of this embodiment is a telescopic cylinder 92. The telescopic cylinder 92 is a single acting cylinder. The drive means further comprises a spring 93. One end of the spring 93 is connected with the tool support 91, and the other end of the spring 93 is connected with a telescopic rod of a single acting cylinder.

As shown in fig. 5, the movement of the telescopic cylinder 92 of the present embodiment is controlled by the telescopic cylinder electric control valve block 92A, and the controller 12 sends an instruction to the telescopic cylinder electric control valve block 92A to control the movement of the telescopic cylinder 92 so as to control the movement of the telescopic cylinder 92 to realize that the movement of the latch hook 95 is limited or separated from the fixing pin a.

The locking device comprises two symmetrically arranged locking hooks 95, and the driving device drives the two locking hooks 95 to rotate simultaneously.

The working vehicle of the present embodiment further includes a bracket device 8 provided on the implement platform 5. The bracket device 8 is used for supporting the work arm 1 of the boarding vehicle when the work vehicle is in a running state.

The specific construction and operation of the construction vehicle according to the present application will be described in detail with reference to fig. 1 to 5.

As shown in fig. 1, the working vehicle of the present embodiment includes a chassis 3, a load-carrying platform 2, an upper frame 4, a work arm 1, and an implement platform 5. The upper carriage frame 4 is connected with the bearing platform 2 through a slewing bearing, and the working arm 1 is connected to the upper carriage frame 4 through an oil cylinder and the like. The tool platform 5 is connected with the bearing platform 2 through a slewing bearing.

The implement platform 5 of this embodiment is disposed at an interval from the upper carriage frame 4. The implement platform 5 is rotatably arranged relative to the carrying platform 1. The upper carriage 4 is also rotatably arranged with respect to the load-bearing platform 1. In this embodiment, the implement platform 5 is spaced from the pivot axis of the upper carriage frame 4.

As shown in fig. 3, the working vehicle of the present embodiment further includes a swing driving device 7 for driving the tool platform 5 to rotate, and a swing angle detecting device 11, a bracket device 8, and a tool group 6 for measuring the swing angle of the tool platform 5. Wherein the set of implements 6 includes a first implement 61, a second implement 62, a third implement 63, and a fourth implement 64. The swing driving device 7 is fixed on the tool platform 5, the swing angle detecting device 11 is fixed on the swing driving device 7, and the bracket device 8 is fixed on the tool platform 5 through welding or bolts.

As shown in fig. 4, the implement is fixed by the implement fixing device 9. The working vehicle of the present embodiment includes at least two implement fixing devices 9 provided corresponding to at least two implements. The specific structure of the implement fixing device 9 will be described in detail below.

As shown in fig. 4, the implement securing device 9 includes an implement bracket 91 and a locking device. The implement carrier 91 is fixed to the implement platform 5 by welding or bolts. The locking device comprises a telescopic cylinder 92, a spring 93, a connecting rod 94 and a locking hook 95, and a fixing pin A is welded on the machine. The telescopic cylinder 92 is a single acting cylinder, which may be a cylinder or an oil cylinder. The single-acting cylinder is in an extended state in a normal state, and the telescopic cylinder 92 is contracted when oil is introduced or ventilation is performed. The cylinder body of the telescopic cylinder 92 is fixed to the tool holder 91 by bolts. One end of the spring 93 is hinged to the tool support 91, the other end of the spring 93 is hinged to the rod of the telescopic cylinder 92, and in a normal state, the spring 93 contracts to tighten the rod of the telescopic cylinder 92 to keep the telescopic cylinder in an extended state. The connecting rod 94 is hinged to the cylinder rod at one end and to the latch hook 95 at one end for moving the latch hook 95. The latch hook 95 is hinged on the inside to the tool holder 91 and on the outside to the link 94, the hook portion of the latch hook 95 being hooked to the fixing pin a on the tool. The connecting rod 94 and the latch hook 95 are symmetrically arranged on both sides of the axis of the telescopic cylinder 92, and the other side of the tool support 91 (i.e., the rear side of the tool shown in fig. 4) of the present embodiment is also provided with the same locking device, so that all degrees of freedom of the tool on the plane are restrained, and the tool can be reliably fixed on the tool support 91.

The section of the fixing pin a is circular, and the contact position between the latch hook 95 and the fixing pin a is also circular arc. That is, the concave portion of the latch hook 95 is circular arc-shaped. In embodiments not shown in other figures, the fixing pin a may also be triangular or other shape.

As shown in fig. 5, the control system of the working vehicle of the present embodiment includes a display 13, a controller 12, a swing control valve group 10, and a telescopic cylinder electric control valve block 92A. The angular position coordinates of the bracket arm device 8, the first tool 61, the second tool 62, the third tool 63 and the fourth tool 64 on the tool platform 5 are preset in the controller 12.

In the present embodiment, when the working vehicle is in a traveling state, the controller 12 controls the swing control valve group 10 to operate the swing drive device 7, and the swing angle detection device 11 transmits the actual swing angle of the implement platform 5 to the controller 12. The controller 12 controls the tool platform 5 to rotate according to the actual rotation angle and the target rotation angle. The target pivoting angle here means that the trailing arm device 8 is rotated to a position facing the arm 1 for supporting the arm 1 so as to achieve fixation of the arm 1 in the transport state.

When the tool needs to be replaced, an operator selects the tool on the existing working arm 1, such as the first tool 61, through the display 13, and the controller 12 controls the swing driving device 7 to act through the swing control valve group 10. The pivot angle detection device 11 transmits the real-time pivot angle of the tool platform 5 to the controller 12, and stops the pivot driving device 7 when the controller 12 determines that the tool holder of the first tool 61 is located directly below the arm 1. At this time, the controller 12 controls the telescopic cylinder electric control valve block 92A to drive the telescopic cylinder 12 to act so as to open the locking device, and the controller 12 controls the working arm 1 to slowly put the first tool 61 on the tool support and closes the telescopic cylinder electric control valve block 92A so as to close the locking device. The operator inputs a new tool to be replaced, for example, a third tool 63, in the display 13, the controller 12 controls the swing driving device 7 to work through the swing control valve group 10, the swing angle detecting device 11 sends the real-time swing angle of the tool platform 5 to the controller 12, and when the controller 12 judges that the tool support of the third tool 63 is positioned under the working arm 1, the swing driving device 7 stops operating. At this time, the controller 12 controls the telescopic cylinder electric control valve block 92A to drive the telescopic cylinder 12 to act so as to open the locking device, the controller 12 controls the working arm 1 to mount the third tool 63 on the head of the working arm 1, and slowly takes out the third tool 63 from the tool support, and the controller 12 closes the telescopic cylinder electric control valve block 92A so as to close the locking device. According to the above process, the operation process of replacing the machine tool of the embodiment is automatic, the process of manually installing and detaching is eliminated, and the efficiency of replacing the machine tool is improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same; while the application has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present application or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the application, it is intended to cover the scope of the application as claimed.

Claims

1. An engineering vehicle, comprising:

a chassis (3);

the bearing platform (2) is arranged on the chassis (3);

the equipment comprises an upper car and an equipment platform (5), wherein the upper car and the equipment platform (5) are arranged on the bearing platform (2) at intervals, the equipment platform (5) is used for placing at least two equipment so that the equipment is replaced by the working arm (1) of the upper car, the engineering vehicle is provided with a working state and an equipment replacing state, and the equipment platform (5) is rotatably arranged relative to the bearing platform (2) so that the position of the working arm (1) corresponding to the position of the equipment to be replaced in the at least two equipment when the equipment is replaced.

2. The work vehicle according to claim 1, characterized in that the implement platform (5) rotates around a central axis of the implement platform (5).

3. The work vehicle of claim 2, wherein said at least two implements are each disposed substantially equidistant from said central axis.

4. A working vehicle according to any one of claims 1-3, characterized in that the working vehicle further comprises an implement fixing device (9) arranged on the implement platform (5), the working vehicle having an operating state in which the implement fixing device (9) is arranged to fix the implement against detachment from the implement platform; in the tool change state, the tool fixing device (9) is used for loosening the tool to be changed in the at least two tools so as to connect the working arm with the tool to be changed.

5. The working vehicle according to claim 4, characterized in that the implement fixing device (9) comprises an implement carrier (91) and a locking device, the implement carrier (91) being fixedly arranged on the implement platform (5), the locking device being adapted to co-operate with a fixing on the implement for locking the implement to the implement carrier (91) in the working state; in the implement change state, the locking device is configured to disengage a securing element on the implement.

6. The work vehicle of claim 5, wherein the locking device comprises a latch hook (95) rotatably provided on the implement carrier (91), and a driving device for driving the latch hook (95) to rotate, the latch hook (95) having a recess for mating with a fixture on the implement, the driving device driving the latch hook (95) to rotate to restrict or disengage the recess from the fixture.

7. The working vehicle according to claim 6, characterized in that the driving device comprises a telescopic mechanism, the locking device further comprises a connecting rod (94) arranged between the telescopic mechanisms, the telescopic mechanism comprises a cylinder fixedly arranged on the tool support (91) and a telescopic rod telescopically arranged relative to the cylinder, a first end of the connecting rod (94) is connected with the telescopic rod, and a second end of the connecting rod (94) is connected with the lock hook (95) to drive the lock hook (95) to rotate.

8. The working vehicle according to claim 7, characterized in that the telescopic mechanism is a single-acting cylinder (92), the driving device further comprises a spring (93), one end of the spring (93) is connected with the implement bracket (91), and the other end of the spring (93) is connected with a telescopic rod of the single-acting cylinder.

9. The work vehicle of claim 6, wherein the locking device comprises two locking hooks symmetrically arranged, and the driving device drives the two locking hooks to rotate simultaneously.

10. The work vehicle according to claim 1, characterized in that the work vehicle further comprises a bracket device (8) arranged on the implement platform (5), the bracket device (8) being adapted to support the work arm (1) of the upper vehicle when the work vehicle is in a driving state.