CN215626362U - Auxiliary arm support device and crane - Google Patents
Auxiliary arm support device and crane Download PDFInfo
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- CN215626362U CN215626362U CN202121310931.3U CN202121310931U CN215626362U CN 215626362 U CN215626362 U CN 215626362U CN 202121310931 U CN202121310931 U CN 202121310931U CN 215626362 U CN215626362 U CN 215626362U
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- support frame
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- auxiliary arm
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Abstract
The utility model relates to the technical field of cranes, and provides an auxiliary arm support device and a crane, which comprise a first support frame, a second support frame and a third support frame, wherein the first support frame is used for being fixed on the side surface of a main arm of the crane; the part of the second support frame is connected to the first support frame in a telescopic way along the length direction; and the linear driving device is arranged at the bottom of the first support frame, is connected with the second support frame and is used for driving the second support frame to slide in a telescopic manner. The utility model can realize the automatic stepless adjustment of the length of the bracket device, saves time and labor, has high assembly and disassembly efficiency, meets the requirements of different auxiliary arms and has wide applicability.
Description
Technical Field
The utility model relates to the technical field of cranes, in particular to an auxiliary arm support device and a crane.
Background
As shown in fig. 1, an auxiliary boom 2, which is an important component of a crane, is installed at the head of a main boom 1 of the crane to lift a working space. The crane has two working conditions, when the main arm is in the working condition, the auxiliary arm 2 is recovered and hung on the side surface of the main arm 1, and is supported and fixed through the support device 3 on the side surface of the main arm 1; under the working condition of the auxiliary boom, the auxiliary boom 2 is pulled out and unfolded around the boom head of the main boom 1, so that the working length of the main boom 1 is prolonged. In the process of recovering the auxiliary jib 2, the auxiliary jib 2 needs to be fixedly connected to the main jib 1, pin shaft holes are generally formed in the auxiliary jib 2 and the main jib 1 respectively, the pin shaft holes in the auxiliary jib 2 need to be adjusted to be aligned with the pin shaft holes in the main jib 1 and then locked through pin shafts, and therefore the support device 3 needs to adjust the support length to adapt to the alignment of the auxiliary jib 2.
Most of the existing support devices 3 are of a rotary structure and comprise two sections of supports 4 hinged through a rotating shaft, wherein one section of the support 4 is fixed on the side surface of the main arm 1, the other section of the support 4 is in an unfolding state and a folding state, when the main arm and the auxiliary arm are connected in a correct direction, the support 4 needs to be unfolded and then fixed through a pin shaft 5, and after the main arm and the auxiliary arm are detached and connected, the support 4 needs to be folded. The above-described stand device has the following problems: (1) the hinge pin and the rotating bracket need to be manually plugged and pulled to climb to the position of the crane bracket, so that time and labor are wasted, and the assembly and disassembly efficiency is low; (2) the length of the bracket can only be adapted to the matched auxiliary arms, and when different auxiliary arms need different lengths of the bracket, the bracket device cannot be adjusted and has no wide applicability.
SUMMERY OF THE UTILITY MODEL
The utility model provides an auxiliary arm support device and a crane, wherein the automatic adjustment of the length of the support device is realized through a linear driving device, the labor is saved, the disassembly and assembly efficiency is improved, the length of the support device can be adjusted in a stepless manner, different auxiliary arm requirements are met, and the applicability is wide.
The utility model provides an auxiliary arm support device, comprising: the first support frame is used for being fixed on the side surface of a main arm of the crane; the part of the second support frame is connected to the first support frame in a telescopic way along the length direction; and the linear driving device is arranged at the bottom of the first support frame, is connected with the second support frame and is used for driving the second support frame to slide in a telescopic manner.
According to the auxiliary arm support device provided by the utility model, the first support frame is provided with a slide way arranged along the length direction, the inner wall of the slide way is provided with at least one sliding block, and the sliding block is in clearance fit with the second support frame and used for guiding and limiting.
According to the auxiliary arm bracket device provided by the utility model, the at least one sliding block comprises a plurality of sliding blocks which are annularly distributed on the inner wall of the sliding way.
According to the auxiliary arm support device provided by the utility model, the top of the second support frame is provided with a first accommodating groove which is arranged along the length direction, a first roller is arranged in the first accommodating groove, and part of the first roller is positioned outside the first accommodating groove.
According to the auxiliary arm support device provided by the utility model, the two sides of the top of the first support frame are respectively provided with a second accommodating groove arranged along the length direction, a second roller is arranged in the second accommodating groove, part of the second roller is positioned outside the second accommodating groove, the middle part of the top of the first support frame is provided with a notch arranged along the length direction, and the notch is communicated with the slide way and used for the first roller to pass through.
According to the auxiliary arm support device provided by the utility model, the highest point of the first roller is flush with the highest point of the second roller.
According to the auxiliary arm support device provided by the utility model, the other part of the main body of the second support frame is bent downwards to form the inclined part, the top surface of the inclined part is provided with a third accommodating groove arranged along the length direction, a third roller is arranged in the third accommodating groove, and part of the third roller is positioned outside the third accommodating groove.
According to the auxiliary arm support device provided by the utility model, the bottom of the other part of the second support frame is provided with a connecting piece, and the driving end of the linear driving device is connected with the connecting piece.
According to the auxiliary arm support device provided by the utility model, the linear driving device is a hydraulic oil cylinder or an electric push rod or an air cylinder.
The utility model also provides a crane which comprises the auxiliary arm bracket device.
According to the auxiliary arm support device and the crane, the length of the support device is automatically adjusted through the linear driving device, labor is saved, the dismounting efficiency is improved, the length of the support device can be adjusted in a stepless mode, different auxiliary arm requirements are met, and the applicability is wide.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for 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 those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view of a primary and secondary jib construction of a prior art crane;
FIG. 2 is a schematic structural view of the present invention providing a secondary arm support apparatus;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a right side view of FIG. 2;
FIG. 5 is a schematic structural view of a second support frame provided in the present invention;
reference numerals:
1: a main arm; 2: an auxiliary arm; 3: a bracket device;
4: a support; 5: a pin shaft; 6: a first support frame;
7: a second support frame; 8: a linear drive device; 9: a slideway;
10: a slider; 11: a first accommodating groove; 12: a first roller;
13: a second accommodating groove; 14: a second roller; 15: a notch;
16: a connecting member; 17: an inclined portion; 18: a third accommodating groove;
19: and a third roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "front", "back", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used 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 specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," "third," and the like 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.
The present invention of the fly arm bracket device will be described with reference to fig. 2 to 5.
According to an embodiment of the present invention, as shown in fig. 2 and 3, the present invention provides an auxiliary arm support device mainly including: a first support frame 6, a second support frame 7 and a linear driving device 8. When the crane is installed, the first support frame 6 is fixed on the side surface of the main arm of the crane; part of the second support frame 7 is telescopically connected with the first support frame 6 along the length direction; the linear driving device 8 is arranged at the bottom of the first support frame 6 and connected with the second support frame 7, and is used for driving the second support frame 7 to stretch and slide in the first support frame 6, so that the whole length of the support frame can be adjusted.
The auxiliary arm support device provided by the utility model realizes automatic adjustment of the length of the support device through the linear driving device 8, saves labor, improves the dismounting efficiency, can adjust the length of the support device in a stepless manner, meets different auxiliary arm requirements, and has wide applicability.
According to the embodiment of the utility model, as shown in fig. 4, the first support frame 6 is provided with a slide way 9 arranged along the length direction, the inner wall of the slide way 9 is provided with at least one sliding block 10 through a bolt, and the sliding block 10 is in clearance fit with the second support frame 7 and used for guiding and limiting the second support frame 7. Specifically, the fixed end (left end) of the first support frame 6 is fixed on the side surface of the main arm of the crane through a bolt, and the part of the second support frame 7 extends into the slideway 9 of the first support frame 6 from the sleeved end (right end) of the first support frame 6 to be matched with the sliding block 10 and stretches and slides in the slideway 9.
Further, at least one slider includes a plurality of sliders, and a plurality of sliders 10 encircle cloth on the inner wall of slide 9, in this example, be equipped with slider 10 on four internal wall faces of slide 9 respectively to wrap up on the outer wall face of second support frame 7, reduce coefficient of friction, be convenient for relative motion between first support frame 6 and the second support frame 7.
According to the embodiment of the present invention, as shown in fig. 5, the top of the second supporting frame 7 is provided with a first receiving groove 11 arranged along the length direction, a plurality of first rollers 12 distributed at intervals are arranged in the first receiving groove 11 through a pin, and a portion of the first rollers 12 is located outside the first receiving groove 11. Specifically, the lower portion of the first roller 12 is located in the first accommodating groove 11, and the upper portion of the first roller 12 is located outside the first accommodating groove 11, i.e. higher than the top of the second supporting frame 7, so that the secondary arm is supported conveniently and the moving performance of the secondary arm is improved, thereby improving the adjusting efficiency.
As shown in fig. 2 and 3, the front side and the rear side of the top of the first support frame 6 are respectively provided with a second accommodating groove 13 arranged along the length direction, a plurality of second rollers 14 distributed at intervals are arranged in the second accommodating grooves 13 through pin shafts, the part of each second roller 14 is located outside the corresponding second accommodating groove 13, specifically, the lower part of each second roller 14 is located in the corresponding second accommodating groove 13, and the upper part of each second roller 14 is located outside the corresponding second accommodating groove 13, namely, higher than the top of the first support frame 6, so that the auxiliary arm can be supported conveniently, and the moving performance of the auxiliary arm can be improved, and the adjustment efficiency can be improved.
And, the middle part at first support frame 6 top is equipped with along length direction's breach 15, and breach 15 extends and is linked together with inside slide 9 from the cover joint end (right-hand member) to stiff end (left end). It can be understood that when the second supporting frame 7 slides in the slideway 9 of the first supporting frame 6 in a telescopic manner, the first roller 12 is driven to move, so that the first roller 12 can pass through the gap 15 communicated with the slideway 9, and the movement of the second supporting frame 7 is not hindered.
Further, the highest point of the first roller 12 is flush with the highest point of the second roller 14, so that the smoothness of the movement of the auxiliary arm is improved.
According to the embodiment of the present invention, as shown in fig. 5, another part of the main body of the second supporting frame 7 is bent downward to form an inclined portion 17, a top surface of the inclined portion 17 is provided with a third receiving groove 18 arranged along the length direction, a third roller 19 is arranged in the third receiving groove 18 by a pin, and a part of the third roller 19 is located outside the third receiving groove 18. Specifically, the lower portion of the third roller 19 is located in the third receiving groove 18, and the upper portion of the third roller 19 is located outside the third receiving groove 18, i.e., higher than the top surface of the inclined portion 17, so that the sub-arm is supported, and by the inclined portion 17, the sub-arm can be prevented from contacting the second supporting frame 7 on the one hand, and the sub-arm can be guided to move on the other hand, so that the moving performance of the sub-arm can be improved.
According to the embodiment of the present invention, as shown in fig. 3, the bottom of the other portion of the second supporting frame 7 is provided with a connecting member 16, and the driving end of the linear driving device 8 is connected to the connecting member 16. In this example, the connector 16 is an ear plate, although other connectors are possible.
The specific type of the linear driving device 8 of the present invention is not particularly limited, and is a hydraulic cylinder or an electric push rod or an air cylinder. In the example, the linear driving device 8 is a hydraulic oil cylinder, and when the hydraulic oil cylinder extends out, the second supporting frame 7 is driven to extend out, so that the integral length of the auxiliary arm supporting frame is increased; when the hydraulic oil cylinder contracts, the second support frame 7 is driven to retract, so that the whole length of the auxiliary arm support frame is shortened. Therefore, the utility model can realize the automatic adjustment of the whole length of the auxiliary arm support frame by controlling the extension length of the hydraulic oil cylinder, and the length can be adjusted in a stepless way within a certain range. To different fly jibs, when needing support frame length different, only need control hydraulic cylinder extension length alright realize matching, can satisfy different fly jib demands, extensive applicability.
The utility model also provides a crane, which comprises the auxiliary jib support device in the embodiment, wherein the auxiliary jib support device is fixed on the side surface of the main jib of the crane and is used for supporting the auxiliary jib of the crane.
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. An auxiliary arm support device, comprising:
the first support frame is used for being fixed on the side surface of a main arm of the crane;
the part of the second support frame is connected to the first support frame in a telescopic way along the length direction;
and the linear driving device is arranged at the bottom of the first support frame, is connected with the second support frame and is used for driving the second support frame to slide in a telescopic manner.
2. The auxiliary arm support device according to claim 1, wherein the first support frame is provided with a slide way arranged along the length direction, the inner wall of the slide way is provided with at least one sliding block, and the sliding block is in clearance fit with the second support frame and used for guiding and limiting.
3. The secondary arm support apparatus of claim 2 wherein the at least one slider comprises a plurality of sliders arranged annularly about an inner wall of the slideway.
4. The forearm support device of claim 2, wherein the second support frame has a first receiving groove formed at a top portion thereof and extending in a longitudinal direction, and a first roller is disposed in the first receiving groove, and a portion of the first roller is located outside the first receiving groove.
5. The auxiliary arm support device according to claim 4, wherein second receiving grooves are formed in two sides of the top of the first support frame and arranged in the length direction, second rollers are arranged in the second receiving grooves, parts of the second rollers are located outside the second receiving grooves, a gap is formed in the middle of the top of the first support frame and arranged in the length direction, and the gap is communicated with the slide way and used for the first rollers to pass through.
6. An auxiliary arm support apparatus according to claim 5 wherein the highest point of the first roller is level with the highest point of the second roller.
7. The forearm support device of claim 1, wherein another part of the main body of the second support bracket is bent downward to form an inclined portion, a top surface of the inclined portion is provided with a third receiving groove arranged in a length direction, a third roller is provided in the third receiving groove, and a portion of the third roller is located outside the third receiving groove.
8. The forearm support device of claim 1, wherein a coupling member is provided at a bottom of the other portion of the second support bracket, the drive end of the linear drive being coupled to the coupling member.
9. An auxiliary arm support device according to claim 1, wherein the linear drive means is a hydraulic or electric push rod or cylinder.
10. A crane, comprising a jib support arrangement according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121310931.3U CN215626362U (en) | 2021-06-11 | 2021-06-11 | Auxiliary arm support device and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121310931.3U CN215626362U (en) | 2021-06-11 | 2021-06-11 | Auxiliary arm support device and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215626362U true CN215626362U (en) | 2022-01-25 |
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ID=79942970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121310931.3U Active CN215626362U (en) | 2021-06-11 | 2021-06-11 | Auxiliary arm support device and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215626362U (en) |
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2021
- 2021-06-11 CN CN202121310931.3U patent/CN215626362U/en active Active
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