CN215608961U - Operation mechanical arm frame assembly and operation machine - Google Patents

Abstract

The utility model provides a working mechanical arm assembly and a working machine. The operation mechanical arm frame subassembly includes: the first arm frame group is used for being rotationally connected with a rotary table of the operation machine; and the second arm frame group is rotatably connected with the first arm frame group and is used for installing the carrying mechanism, and the second arm frame group can rotate so that the carrying mechanism can be switched between a storage position below the first arm frame group and an operation position outside the first arm frame group. When the arm frame assembly needs to be unfolded, the second arm frame assembly is unfolded relative to the first arm frame assembly, the second arm frame assembly rotates, and the carrying mechanism is rotated to an operation position; when the arm frame assembly needs to be retracted, the second arm frame assembly is folded relative to the first arm frame assembly, the second arm frame assembly rotates again, and the carrying mechanism rotates to be located below the first arm frame assembly. After the second arm frame group is retracted, the second arm frame group cannot protrude out of the rear portion of the first arm frame group, but is stacked below the first arm frame group, so that the whole volume of the arm frame assembly is effectively reduced, and the whole structure is more compact.

Description

Operation mechanical arm frame assembly and operation machine

Technical Field

The utility model relates to the field of operation machinery, in particular to an operation mechanical arm frame assembly and operation machinery.

Background

In a conventional work machine, for example, a climbing platform fire truck, a lifting boom and a rescue work platform are mounted on a chassis of the conventional climbing platform fire truck. In the actual operation process, the rescue working platform can be conveyed to the optimal rescue place to carry out rescue operation by unfolding the lifting arm support. However, the existing climbing platform fire truck has a large overall structure and is suitable for urban road rescue, but for districts in old urban areas and rural areas, the risks that vehicles are difficult to enter and the arm support is difficult to unfold exist, so that the arm support structure with a small and compact structure and complete functions is urgently needed to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides an operation mechanical arm frame assembly and operation machinery, which are used for solving the defect that the overall structure is not compact enough due to the fact that the size of the arm frame assembly is large in the operation machinery in the prior art, particularly in a fire truck with an ascending platform.

A first aspect of the present invention provides a work robot arm assembly comprising: the first arm frame group is used for being rotationally connected with a rotary table of the operation machine; and a second arm frame group that is rotatably connected to the first arm frame group and that mounts a mounting mechanism of the working machine, wherein the second arm frame group is rotatable so that the mounting mechanism is switched between a storage position located below the first arm frame group and an operation position located outside the first arm frame group.

According to the work robot arm assembly provided by the present invention, the first arm rest group includes: the first arm support is used for being rotatably connected with the rotary table; the second arm support is rotatably connected with the first arm support and can be unfolded or folded relative to the first arm support.

According to the work robot arm assembly provided by the present invention, the second arm rest group includes: the third arm support is rotatably connected with the second arm support; the fourth arm support is used for mounting the carrying mechanism and is rotationally connected with the third arm support; the third arm frame can rotate, so that the fourth arm frame drives the carrying mechanism to switch between the retracting position and the operating position.

According to the work robot arm assembly provided by the present invention, the third arm includes: the upper arm section is rotatably connected with the second arm support; the lower arm section is rotatably connected with the fourth arm frame; and the rotating mechanism is connected between the upper arm section and the lower arm section so as to enable the lower arm section to rotate relative to the upper arm section.

According to the work robot arm assembly provided by the utility model, the work robot arm assembly further comprises: the first oil cylinder is connected between the rotary table and the first arm support; the second oil cylinder is connected between the first arm support and the second arm support; the third oil cylinder is connected between the second arm support and the third arm support; and the fourth arm support is rotatably connected with the third arm support through the fourth oil cylinder.

According to the work mechanical arm frame assembly provided by the utility model, the top of the first arm frame is provided with the accommodating cavity, and the second arm frame is embedded in the accommodating cavity when the second arm frame is in a folded state.

According to the work mechanical arm frame assembly provided by the utility model, the second arm frame is constructed into a telescopic arm frame structure, and a driving device for driving the second arm frame to stretch is arranged in the second arm frame.

The utility model provides a working machine, which comprises a chassis, an auxiliary frame, a rotary table, a carrying mechanism and the working mechanical arm frame assembly, wherein the rotary table is arranged on the auxiliary frame, the auxiliary frame is arranged on the chassis, the first arm frame assembly is rotatably connected with the rotary table, and the carrying mechanism is arranged on the second arm frame assembly.

According to the present invention, there is provided a working machine further including: the first supporting mechanism is rotatably connected with the auxiliary frame and is positioned below the rotary table; the second supporting mechanism is connected with the auxiliary frame and located behind the first supporting mechanism, and the second supporting mechanism is perpendicular to the axis direction of the auxiliary frame.

According to the working machine provided by the utility model, the working machine is an elevating platform fire truck, and the carrying mechanism is a rescue platform.

In the work mechanical arm frame assembly provided by the utility model, the first arm frame group is used for being rotatably connected with a rotary table of a work machine, the second arm frame group is rotatably connected with the first arm frame group and is used for installing a carrying mechanism of the work machine, and during practical application, the second arm frame group can be unfolded and folded relative to the first arm frame group. Further, the second arm rest group itself can be rotated, which enables the mounting mechanism to be switched between a stowed position located below the first arm rest group and an operating position located outside the first arm rest group. When the arm frame assembly needs to be unfolded, the second arm frame assembly is unfolded relative to the first arm frame assembly, and meanwhile, the second arm frame assembly rotates, so that the carrying mechanism is rotated to an operation position; when the arm frame assembly needs to be retracted, the second arm frame assembly is folded relative to the first arm frame assembly, and meanwhile, the second arm frame assembly rotates again, so that the carrying mechanism rotates to be located below the first arm frame assembly. After the second arm frame group is retracted, the second arm frame group does not protrude behind the first arm frame group but is stacked below the first arm frame group, so that the overall volume of the arm frame assembly can be effectively reduced, and the whole structure is more compact.

Further, the present invention provides a working machine having the above-described working robot arm assembly, and therefore, also having the advantages described above.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 schematic illustration of a work machine arm assembly in actual use, showing a work machine according to the present disclosure;

FIG. 2 is a schematic illustration of a second set of booms in the work robot boom assembly;

FIG. 3 is a schematic cross-sectional view of a first set of booms in a work robot boom assembly;

FIG. 4 is an assembled schematic view of the subframe, the first support mechanism, and the second support mechanism of the work machine;

FIG. 5 is a schematic illustration of a work machine in various positions during actual operation;

reference numerals:

100: a work robot arm carrier assembly; 102: a first arm support group;

104: a second arm support group; 106: a first arm support;

108: a second arm support; 110: a third arm support;

112: a fourth arm support; 114: an upper arm section;

116: a lower arm section; 118: a rotation mechanism;

120: a first cylinder; 122: a second cylinder;

124: a third oil cylinder; 126: a fourth cylinder;

128: an accommodating chamber; 130: hinging points;

200: a working machine; 202: a chassis;

204: a turntable; 206: a mounting mechanism;

208: an auxiliary frame; 210: a first support mechanism;

212: a second support mechanism; l: an axial direction.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "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 only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Referring now to fig. 1-5, embodiments of the present invention will be described. It should be understood that the following description is only exemplary embodiments of the present invention and does not constitute any particular limitation of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a work robot arm assembly 100. In general, the work robot arm assembly 100 may include a first set of booms 102 and a second set of booms 104.

Specifically, as shown in fig. 1, the first boom frame set 102 may be rotatably coupled to a turntable 204 of the work machine 200 to perform rotation and lifting/folding operations with respect to the turntable 204. The second arm support set 104 may be pivotally coupled to the first arm support set 102 for pivotal and deployment/retraction operations with respect to the first arm support set 102. The second arm rest group 104 may be used to attach a mounting mechanism 206 of the work machine 200.

Further, in the embodiment of the present invention, in addition to being able to rotate with respect to the first arm rest group 102, the second arm rest group 104 itself is also able to rotate with respect to the second arm rest group 104. In this case, the pivoting action of the second arm rest group 104 can cause the mounting mechanism 206 of the work machine 200 to switch between the stowed position and the operating position.

Specifically, when in the stowed position, where the work robot arm assembly 100 is fully stowed and not in use, the second set of arms 104 is positioned below the first set of arms 102, such as shown in the embodiment of fig. 1; when in the operating position, in which the work robot arm assembly 100 is fully deployed and in use for the operator, the second set of arms 104 is positioned outside of the first set of arms 102, such as behind the first set of arms 102.

As can be seen from the above description of the embodiment, during practical use, when it is desired to deploy the work robot arm assembly 100, the second arm rest set 104 is deployed with respect to the first arm rest set 102, while the second arm rest set 104 itself rotates, thereby rotating the mounting mechanism 206 to the operative position; when it is desired to retract the work robot arm assembly 100, the second arm rest set 104 is folded relative to the first arm rest set 102, while the second arm rest set 104 is again rotated, thereby pivoting the load mechanism 206 to a position below the first arm rest set 102. After the second arm rest group 104 is retracted, it does not protrude behind the first arm rest group 102, but is stacked below the first arm rest group 102. In this way, the overall volume of the work robot arm assembly 100 can be effectively reduced, thereby making the overall structure more compact.

It should be noted that the working machine 200 is an ascending platform fire truck, and the embodiments of the present invention and the drawings are described as examples. Accordingly, the carrying mechanism 206 is a rescue platform of the elevating platform fire truck. During actual use, the rescue platform can be used for operators to stand so as to perform various rescue tasks.

It should of course be understood that work machine 200 is not limited to the above-described elevated platform fire engine, and that other types of work machines may suitably employ work arm frame assemblies 100 provided by the present disclosure. For example, work machine 200 may be a hoist machine or the like; the corresponding mounting mechanism 206 is a mating mounting for the corresponding work machine 200. In other words, the type of the work machine 200 and the type of the mounting mechanism 206 are not limited to the present invention, and may be adjusted according to actual circumstances.

With continued reference to fig. 1, in an embodiment of the utility model, the first boom set 102 may include a first boom 106 and a second boom 108. Similarly, second boom set 104 may include a third boom 110 and a fourth boom 112. The specific structures of the first arm support set 102 and the second arm support set 104 are described below with reference to the embodiments shown in the drawings.

For the first boom set 102, the first boom 106 may be rotatably coupled to the turntable 204 for rotation and lifting/folding operations with respect to the turntable 204. The second arm 108 may be rotatably connected to the first arm 106, such that the second arm 108 may be capable of being unfolded or folded with respect to the first arm 106. In the embodiment shown in fig. 1, the first arm 106 and the second arm 108 are both shown in a folded and retracted state.

Further, for second boom set 104, third boom 110 may be pivotally coupled to second boom 108 to pivotally couple second boom set 104 to first boom set 102. Furthermore, fourth boom 112 may be pivotally coupled to third boom 110, and a mounting mechanism 206 as described above may be mounted on fourth boom 112. In this way, the first set of booms 102 and the second set of booms 104 together form a unitary structure as shown in fig. 1. In the embodiment shown in fig. 1, a case where both the third boom 110 and the fourth boom 112 are in a retracted state is shown.

As for the third boom 110, in the embodiment of the present invention, the third boom 110 itself can rotate. In this manner, rotation of third arm 110 may cause fourth arm 112 to move carrying mechanism 206 between the stowed position and the operational position shown in fig. 1. In this way, the work robot arm assembly 100 is effectively reduced in overall bulk when in the stowed position as shown in fig. 1, thereby making the overall structure more compact.

Specifically, as shown in fig. 2, in an alternative embodiment of the present invention, third boom 110 may include an upper arm segment 114, a lower arm segment 116, and a rotation mechanism 118. Further, upper arm segment 114 may be pivotally connected to second boom 108 and lower arm segment 116 may be pivotally connected to fourth boom 112. With regard to the rotation mechanism 118, the rotation mechanism 118 may be connected between the upper arm segment 114 and the lower arm segment 116 such that the lower arm segment 116 is rotatable relative to the upper arm segment 114. Thus, when the carrying mechanism 206 needs to be switched between the storage position and the operating position, the lower arm segment 116 is driven to rotate relative to the upper arm segment 114 by the rotating mechanism 118.

In an alternative embodiment of the present invention, the rotating mechanism 118 as described above may be a rotary reducer; it should be understood that any other suitable structure may be used in the present invention as the rotating mechanism 118.

With continued reference to fig. 1, in one embodiment of the present invention, the work robot arm assembly 100 may also include a plurality of rams. The oil cylinders can be used for driving different arm supports to lift or rotate.

Specifically, the work robot arm assembly 100 may include a first cylinder 120, a second cylinder 122, a third cylinder 124, and a fourth cylinder 126. Specifically, the first cylinder 120 may be connected between the turntable 204 and the first arm 106, and configured to drive the first arm 106 to rotate relative to the turntable 204. The second cylinder 122 may be connected between the first arm support 106 and the second arm support 108, and is configured to drive the second arm support 108 to rotate relative to the first arm support 106. Third cylinder 124 may be coupled between second boom 108 and third boom 110 for driving third boom 110 to rotate with respect to second boom 108. Fourth cylinder 126 may be installed between fourth boom 112 and third boom 110 such that fourth boom 112 is rotatably connected to third boom 110 through fourth cylinder 126.

In an alternative embodiment, the first cylinder 120, the second cylinder 122 and the third cylinder 124 may be configured as luffing cylinders for luffing operation of each boom described above. Further alternatively, fourth cylinder 126 may be configured as a rotation cylinder for rotational operation of fourth boom 112 relative to third boom 110.

With continued reference to fig. 1 in conjunction with fig. 3, in an embodiment of the present invention, a receiving cavity 128 may be formed at the top of the first arm support 106. In other words, the first arm support 106 may adopt a "U" shape, i.e. the upper end is not closed. In addition, the receiving cavity 128 may extend along the length of the first arm support 106. As shown in fig. 1 and 3, when the second arm 108 is in the folded state, the second arm 108 may be embedded in the accommodating cavity 128. In this manner, the overall height of the entire work robot arm assembly 100, i.e., the entire work machine 200, may be effectively reduced.

In an actual assembly process, as shown in the embodiment shown in fig. 3, two hinge points 130 may be respectively disposed on the first arm support 106 and the second arm support 108, and the second cylinder 122 may be connected between the hinge points 130 on the first arm support 106 and the second arm support 108.

Further, in an embodiment of the present invention, for the second boom 108, it may be configured as a telescopic boom structure, and a driving device for driving the second boom 108 to telescope may be built in the second boom 108. In an alternative embodiment of the utility model, the drive means may be, for example, a telescopic cylinder. In other alternative embodiments, the driving device may be, for example, a pulley assembly or a motorized gear assembly. In this way, the range and breadth of adjustability of the work robot arm assembly 100 of the present invention is enabled to be greater.

With continued reference back to fig. 1, embodiments of the present disclosure also provide a work machine 200. The work machine 200 may include a chassis 202, a turntable 204, a load mechanism 206, a subframe 208, and the work robot arm assembly 100 as described above.

Specifically, turntable 204 can be mounted on subframe 208, and subframe 208 can be mounted on chassis 202. Further, the first boom group 102 in the work robot arm assembly 100 is rotatably connected to the turn table 204, and the mounting mechanism 206 is mounted on the second boom group 104 in the work robot arm assembly 100, thereby constituting the overall structure of the work machine 200 as shown in fig. 1. In one embodiment, the turntable 204 as described above may be centrally located, thereby making the overall vehicle center location more reasonable.

As further shown in fig. 1 in conjunction with fig. 4, in one embodiment of the present disclosure, work machine 200 further includes a first support mechanism 210 and a second support mechanism 212.

Specifically, a first support mechanism 210 may be pivotally coupled to the subframe 208 and positioned below the turntable 204, and a second support mechanism 212 may be coupled to the subframe 208 and positioned rearward of the first support mechanism 210. During a particular application, the first support mechanism 210 and the second support mechanism 212 may be deployed relative to the chassis 202 and the subframe 208 to provide robust bottom support for lifting operations of the work robot arm assembly 100.

As shown in fig. 4, in the embodiment of the present invention, when the first supporting mechanism 210 and the second supporting mechanism 212 are unfolded, the first supporting mechanism 210 may be disposed at an angle smaller than 90 degrees with respect to the axial direction L of the subframe 208, and the second supporting mechanism 212 may be disposed perpendicular to the axial direction L of the subframe 208. In this way, the overall arrangement of the first support mechanism 210 and the second support mechanism 212 is made to form a layout of the "front X rear H" type. It should be noted here that if the first supporting mechanism 210 and the second supporting mechanism 212 adopt the "H" type layout, the overall supporting stability is not better than that of the "X" type layout; and if the layout form of the X shape is adopted, the occupied area after the expansion is larger. Therefore, the utility model adopts a combined layout mode of 'front X and back H', so that good support stability is provided without obviously increasing the floor area.

It should be understood, of course, that although a "front X back H" combination layout is shown in the embodiment shown in fig. 4, in other alternative embodiments, the entirety of the first support mechanism 210 and the second support mechanism 212 may be arranged in an X-type layout or an H-type layout as appropriate, if desired. And the second support mechanism 212 may similarly be pivotally coupled to the subframe 208. In other words, the overall layout of the first support mechanism 210 and the second support mechanism 212 does not limit the present invention in any way.

Taking the working machine 200 as an ascending platform fire truck and the carrying mechanism 206 as a rescue platform of the ascending platform fire truck as an example, when the truck carries out rescue work, the first support mechanism 210 and the second support mechanism 212 need to be kept in the unfolded state, as shown in fig. 4. Rescue platform is then rotated 180 deg. by rotation mechanism 118 towards the tail. After the posture of the rescue platform is adjusted, the second arm support 108 is unfolded to a certain angle by the second oil cylinder 122.

After the preparation work is finished, the subsequent rescue work needs to be adjusted according to the actual rescue working condition. For example, the extension length of the second boom 108 can be adjusted, the angle of the first boom 106 can be adjusted by the first cylinder 120, the deployment angle of the third boom 110 can be adjusted by the third cylinder 124, the rescue range of the whole boom assembly can be adjusted by the turntable 204, and the like. A schematic view of the work robot arm assembly 100 in various positions during actual operation is schematically shown in fig. 5.

As can be seen from the above description, the work machine 200 provided by the embodiment of the present invention includes the work robot arm assembly 100 as described above, so that all the advantages as described above are also provided.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A work robot arm assembly, comprising:

the first arm frame group is used for being rotationally connected with a rotary table of the operation machine;

and a second arm frame group that is rotatably connected to the first arm frame group and that mounts a mounting mechanism of the working machine, wherein the second arm frame group is rotatable so that the mounting mechanism is switched between a storage position located below the first arm frame group and an operation position located outside the first arm frame group.

2. The work robot arm frame assembly of claim 1, wherein said first arm frame set comprises:

the first arm support is used for being rotatably connected with the rotary table;

the second arm support is rotatably connected with the first arm support and can be unfolded or folded relative to the first arm support.

3. The work robot arm frame assembly of claim 2, wherein said second arm frame set comprises:

the third arm support is rotatably connected with the second arm support;

the fourth arm support is used for mounting the carrying mechanism and is rotationally connected with the third arm support;

the third arm frame can rotate, so that the fourth arm frame drives the carrying mechanism to switch between the retracting position and the operating position.

4. The work robot arm frame assembly of claim 3, wherein the third arm frame comprises:

the upper arm section is rotatably connected with the second arm support;

the lower arm section is rotatably connected with the fourth arm frame;

and the rotating mechanism is connected between the upper arm section and the lower arm section so as to enable the lower arm section to rotate relative to the upper arm section.

5. The work robot arm assembly of claim 3, further comprising:

the first oil cylinder is connected between the rotary table and the first arm support;

the second oil cylinder is connected between the first arm support and the second arm support;

the third oil cylinder is connected between the second arm support and the third arm support;

and the fourth arm support is rotatably connected with the third arm support through the fourth oil cylinder.

6. The work boom assembly of claim 2, wherein a receiving cavity is formed in a top portion of the first boom, wherein the second boom is nested in the receiving cavity when the second boom is in the folded position.

7. The work boom assembly of claim 2, wherein the second boom is configured as a telescopic boom structure, and a driving device for driving the second boom to telescope is disposed inside the second boom.

8. A work machine comprising a chassis, a sub-frame, a turntable, a carrying mechanism and a work robot arm assembly according to any one of claims 1 to 7,

the turntable is arranged on the auxiliary frame, the auxiliary frame is arranged on the chassis, the first arm frame group is rotatably connected with the turntable, and the carrying mechanism is arranged on the second arm frame group.

9. The work machine of claim 8, further comprising:

the first supporting mechanism is rotatably connected with the auxiliary frame and is positioned below the rotary table;

the second supporting mechanism is connected with the auxiliary frame and located behind the first supporting mechanism, and the second supporting mechanism is perpendicular to the axis direction of the auxiliary frame.

10. The work machine of claim 8, wherein the work machine is an elevating platform fire truck and the ride-on mechanism is a rescue platform.

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