CN217055048U - Folding arm support structure, rock drilling arm support assembly and rock drilling trolley - Google Patents
Folding arm support structure, rock drilling arm support assembly and rock drilling trolley Download PDFInfo
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- CN217055048U CN217055048U CN202220692732.1U CN202220692732U CN217055048U CN 217055048 U CN217055048 U CN 217055048U CN 202220692732 U CN202220692732 U CN 202220692732U CN 217055048 U CN217055048 U CN 217055048U
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Abstract
The application provides a folding boom structure, a rock drilling boom assembly and a rock drilling trolley, and relates to the technical field of engineering machinery. The folding arm support structure comprises a main arm, a large arm, a folding driving component and a connecting rod mechanism: the main arm is used for being connected with a frame of the rock drilling jumbo; the large arm is hinged to one end, far away from the frame, of the main arm and comprises a ventral surface and a back surface far away from the ventral surface; the folding driving assembly is arranged on the back face, the output end of the folding driving assembly is hinged with the main arm and the large arm through the connecting rod mechanism respectively, and the folding driving assembly can drive the connecting rod mechanism to drive the large arm to swing relative to the main arm. The application provides a folding cantilever crane structure, the folding drive assembly of accessible drive link mechanism drives the relative main arm swing of big arm, makes big arm exhibition open and predetermines the angle to dodge the edge of step, avoid causing the collision to interfere. Meanwhile, the large arm tends to the construction area above the step, the large arm is more flexible, the construction range is large, and construction of the construction area above the step can be completed.
Description
Technical Field
The application relates to the technical field of engineering machinery, in particular to a folding arm support structure, a rock drilling arm support assembly and a rock drilling trolley.
Background
A drill jumbo (also called a drilling jumbo) is a drilling device constructed by a drilling and blasting method in tunnel and underground engineering. One or more rock drills together with automatic thrusters are mounted on a specially made drill boom or drill frame and provided with a travelling mechanism to mechanize the rock drilling operation. Referring to fig. 1, the boom of the rock drilling jumbo on the market at present adopts a telescopic boom structure, which includes a main boom body 10 and a telescopic boom body 20 disposed on the main boom body 10, wherein the telescopic boom body 20 can slide axially along the main boom body 10 to extend and retract.
Therefore, when the rock drilling jumbo with the telescopic boom structure is constructed by a step method, the main boom body 10 and the telescopic boom body 20 are always kept on the same straight line, so that the main boom body 10 or the telescopic boom body 20 collides and interferes with the edge of a step, the construction range is reduced, and further, the construction of a part of the area above the step cannot be carried out.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a folding arm support structure, a rock drilling arm support assembly and a rock drilling trolley, which are used for solving the defects existing in the prior art.
To achieve the above object, in a first aspect, the present application provides a foldable boom structure for a drill jumbo, the foldable boom structure including a main arm, a large arm, a folding driving assembly, and a link mechanism:
the main arm is used for being connected with a frame of the drill jumbo;
the large arm is hinged to one end, away from the frame, of the main arm;
the large arm is hinged to one end, far away from the frame, of the main arm and comprises a ventral surface opposite to the main arm when the large arm is folded and a back surface far away from the ventral surface;
the folding driving assembly is arranged on the back face, an output end of the folding driving assembly is hinged to the main arm and the large arm through the connecting rod mechanism respectively, and the folding driving assembly can drive the connecting rod mechanism to drive the large arm to swing relative to the main arm.
With reference to the first aspect, in one possible implementation, the link mechanism includes a first link and a second link;
one end of the first connecting rod piece is hinged to the side face of the main arm, and the other end of the first connecting rod piece is hinged to the second connecting rod piece and the folding driving assembly respectively;
one end of the second connecting rod piece, which is far away from the first connecting rod piece, is hinged to the side surface of the large arm;
one end of the folding driving assembly, which is far away from the first connecting rod, is hinged to the back of the large arm.
With reference to the first aspect, in one possible implementation, a length of the first link member is greater than a length of the second link member.
With reference to the first aspect, in a possible implementation manner, the link mechanism includes a third link member and a fourth link member, where the fourth link member has three hinge holes, and a connection line of the three hinge holes forms a virtual triangle;
one end of the third connecting rod piece is hinged to the side surface of the main arm, and the other end of the third connecting rod piece is hinged to one hinge hole in the fourth connecting rod piece;
the other two hinge holes of the fourth connecting rod piece are respectively hinged with the side surface of the large arm and the folding driving component;
one end of the folding driving assembly, which is far away from the fourth connecting rod piece, is hinged to the back surface of the large arm.
With reference to the first aspect, in a possible implementation manner, the folding driving assembly is a telescopic cylinder, a cylinder body end of the telescopic cylinder is hinged to the connecting rod mechanism, and a piston end of the telescopic cylinder is hinged to the back surface of the large arm.
With reference to the first aspect, in a possible implementation manner, the folding driving assembly is a telescopic cylinder, a piston end of the telescopic cylinder is hinged to the connecting rod mechanism, and a cylinder body end of the telescopic cylinder is hinged to the back surface of the large arm.
With reference to the first aspect, in a possible implementation manner, the folding boom structure further includes a pitch driving mechanism, where the pitch driving mechanism includes a base and two pitch driving components, the base is disposed on the frame, the main arm is hinged to the base, and the two pitch driving components are respectively disposed on a back surface and a ventral surface of the main arm, where one end of the pitch driving component is hinged to the base, and the other end of the pitch driving component is hinged to the main arm.
With reference to the first aspect, in a possible implementation manner, the folding arm support structure further includes a swing mechanism, the swing mechanism is disposed on the frame, and the base is disposed on the swing mechanism.
In a second aspect, the present application further provides a rock drilling boom assembly, including the folding boom structure as provided in the first aspect above.
In a third aspect, the present application also provides a rock drilling rig including a rock drilling boom assembly as provided in the second aspect above.
Compare in prior art, the beneficial effect of this application:
the application provides a folding cantilever crane structure, rock drilling cantilever crane assembly and drill jumbo, wherein, folding cantilever crane structure includes main arm, big arm, folding drive assembly and link mechanism: the main arm is used for being connected with a frame of the drill jumbo; the large arm is hinged to one end, far away from the frame, of the main arm, and comprises a ventral surface opposite to the main arm during folding and a back surface far away from the ventral surface; the folding driving assembly is arranged on the back face, the output end of the folding driving assembly is hinged to the main arm and the large arm through the connecting rod mechanism respectively, and the folding driving assembly can drive the connecting rod mechanism to drive the large arm to swing relative to the main arm. From this, the folding cantilever crane structure that this application provided is applied to drill jumbo, when carrying out the step method construction, because big arm and main arm are articulated cooperation, and then the folding drive subassembly drive link mechanism of accessible drives the relative main arm swing of big arm, makes the big arm exhibition predetermine the angle, and the contained angle that forms between big arm and the main arm can dodge the edge of step, avoids causing the collision to interfere. Meanwhile, the large arm tends to the construction area above the step, the large arm is more flexible, the construction range is enlarged, and construction of the construction area above the step can be completed. When the folding arm frame structure does not work, the folding driving component drives the connecting rod mechanism to drive the large arm to swing relative to the main arm, so that the large arm is drawn close to the main arm, the large arm is folded relative to the main arm, the size of the whole drilling trolley is reduced, and the drilling trolley can move in a narrow area conveniently.
In addition, in the folding arm support structure provided by the application, the folding driving assembly is arranged on the back of the large arm, and acting force is dispersed to the large arm and the main arm through the connecting rod mechanism, so that the phenomenon that all acting force is concentrated on the main arm, the possibility of fatigue damage is reduced, and the stability of the structure is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.
Fig. 1 shows a schematic structural view of a rock drilling jumbo in a construction state in the prior art;
figure 2 shows a schematic diagram of a deployed state of a rock drilling rig provided in an embodiment of the present application;
FIG. 3 shows an enlarged partial schematic view at A in FIG. 2;
FIG. 4 shows a partial enlarged schematic view at B in FIG. 2;
fig. 5 shows a constructional view of the rock-drilling rig of fig. 2 in a collapsed state;
FIG. 6 is a schematic view of a construction state of the rock-drilling rig of FIG. 2;
fig. 7 is a schematic structural diagram of another rock drilling jumbo provided by the embodiment of the present application;
FIG. 8 illustrates a structural schematic view of the connecting rod assembly shown in FIG. 7.
Description of the main element symbols:
10-a main arm body; 20-a telescopic arm body;
100-a frame; 200-big arm; 210-a first ventral surface; 220-a first back side; 230-a first side; 240-a first hinge; 250-a fifth articulation; 260-a first lug; 300-a main arm; 310-a second ventral surface; 320-a second back side; 330-second side; 340-a sixth hinge; 350-a second lug; 400-a folding drive assembly; 410-a telescopic cylinder; 500-a linkage mechanism; 510-a first link member; 520-a second link member; 530-a second articulation; 540-a third hinge; 550-a fourth hinge; 560-third link member; 570-a fourth link member; 571-hinge holes; 600-a pitch drive mechanism; 610-a base; 620-pitch drive assembly; 621-pitch cylinder; 630-a seventh articulation; 640-an eighth articulation; 700-a slewing mechanism.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, 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.
Example one
Referring to fig. 2, 3 and 4, the present embodiment provides a foldable boom structure, which can be applied to a drill jumbo. Of course, other construction equipment, such as wet-jet machines, may also be used.
The folding arm support structure provided in this embodiment includes a main arm 300, a main arm 200, a folding driving assembly 400, and a link mechanism 500. The main arm 300 is used for being connected with the frame 100 of the drill jumbo, and the large arm 200 is hinged to one end, far away from the frame 100, of the main arm 300. The large arm 200 includes a first ventral surface 210, a first dorsal surface 220 facing away from the first ventral surface 210, and two opposing first lateral surfaces 230. Main arm 300 includes a second ventral surface 310, a second dorsal surface 320 facing away from second ventral surface 310, and two opposing second lateral surfaces 330. When the boom 200 is folded with respect to the main arm 300, the boom 200 is moved toward the main arm 300, and the first ventral surface 210 is opposite to and close to the second ventral surface 310, and the first dorsal surface 220 is opposite to the second dorsal surface 320. Thus, the first ventral surface 210, the first dorsal surface 220, the second ventral surface 310 and the second dorsal surface 320 are folded relative to the large arm 200.
Further, the main arm 200 is hinged to the main arm 300 by a first hinge 240.
The folding driving assembly 400 is disposed on the first back surface 220 of the main arm 200, an output end of the folding driving assembly 400 is hinged to the main arm 300 and the main arm 200 through the link mechanism 500, and the folding driving assembly 400 can drive the link mechanism 500 to drive the main arm 200 to swing relative to the main arm 300, specifically, the main arm 200 swings in a vertical plane relative to the main arm 300. Therefore, the big arm 200 can be unfolded and folded relative to the main arm 300 under the driving of the folding driving assembly 400, wherein when the big arm 200 needs to be unfolded, the big arm 200 swings in the direction away from the main arm 300 under the driving of the folding driving assembly 400, so that the length of the whole folding arm support structure is lengthened to meet different construction requirements. When the big arm 200 needs to be folded, the big arm 200 is driven by the folding driving assembly 400 to swing in a direction approaching the main arm 300, the big arm 200 approaches the main arm 300 gradually, and finally the big arm 200 is close to the main arm 300, so as to complete the folding of the big arm 200.
In some embodiments, in order to ensure the stability of the folding arm support structure, two link mechanisms 500 are provided, and the two link mechanisms 500 are respectively located at two sides of the large arm 200 and are symmetrical with respect to the large arm 200.
Referring to fig. 2, 5 and 6, it can be understood that, during the step construction, especially for the three-step construction, since the large arm 200 is hinged to the main arm 300, the link mechanism 500 is driven by the folding driving component 400 to drive the large arm 200 to swing relative to the main arm 300, so that the large arm 200 is unfolded by a predetermined angle, and thus the included angle formed between the large arm 200 and the main arm 300 is avoided from the edge of the third step, thereby avoiding collision interference. Meanwhile, the large arm 200 tends to a construction area above the third step, and the large arm 200 is hinged to the main arm 300, so that the large arm 200 can move more flexibly, the range of motion is increased, and the construction range is further increased, so that the rock drilling trolley can complete construction of the construction area above the steps. In addition, after the large arm 200 is folded, the size of the whole folding arm support structure can be relatively reduced, and after the folding arm support structure is applied to a drill jumbo, the size of the whole drill jumbo can be reduced, so that the drill jumbo can move in a narrow area conveniently.
Referring to fig. 2, fig. 3 and fig. 4, in particular, in the present embodiment, the link mechanism 500 includes a first link member 510 and a second link member 520, wherein one end of the first link member 510 is hinged to the second side surface 330 of the main arm 300 through a second hinge 530, and the other end of the first link member 510 is hinged to the second link member 520 and the folding driving assembly 400 through a third hinge 540, respectively, that is, the first link member 510, the second link member 520 and the folding driving assembly 400 are hinged to one position, and both can rotate relative to the third hinge 540.
An end of the second link member 520 remote from the first link member 510 is hinged to the first side surface 230 of the large arm 200 by a fourth hinge 550.
Therefore, the first hinge 240, the second hinge 530, the third hinge 540 and the fourth hinge 550 are sequentially connected to form a quadrangle, and the first link 510, the main arm 300, the large arm 200 and the second link 520 form a four-bar linkage.
The end of the folding driving assembly 400 remote from the first link member 510 is hinged to the first rear surface 220 of the large arm 200 by the fifth hinge 250. The third hinge 540 and the fifth hinge 250 are both located on one side of the first back surface 220 of the large arm 200.
Further, the first back surface 220 of the large arm 200 is provided with a first lug 260 for mounting the fifth hinge 250. The folding driving assembly 400 can output a linear telescopic motion to change an inner angle in the four-bar linkage structure, thereby realizing the unfolding and folding of the boom 200.
In some embodiments, the length of the first link 510 is greater than the length of the second link 520, so as to avoid a dead point of movement and ensure smooth unfolding and folding of the large arm 200.
In this embodiment, the folding driving assembly 400 is a telescopic cylinder 410, the cylinder end of the telescopic cylinder 410 is hinged to the first connecting rod 510 and the second connecting rod 520 by a third hinge 540, and the piston end of the telescopic cylinder 410 is hinged to the first lug 260 of the first back surface 220 of the large arm 200 by a fifth hinge 250. Optionally, the telescopic cylinder 410 is selected as an oil cylinder, and since the swing amplitude of the third hinge 540 is smaller than that of the large arm 200 when the large arm 200 is unfolded and folded, the arrangement length of an oil supply pipe can be reduced by hinging the cylinder body end of the telescopic cylinder 410 with the third hinge 540, so that the oil pipe arrangement of the folding arm support structure is simpler.
Of course, in some embodiments, the piston end of the telescopic cylinder 410 may be hinged to the first link 510 and the second link 520 through the third hinge 540, and the cylinder end of the telescopic cylinder 410 may be hinged to the first lug 260 of the first back surface 220 of the large arm 200 through the fifth hinge 250.
Compared with the prior art, the present embodiment arranges the folding driving assembly 400 on the first back surface 220 of the large arm 200 and disperses the acting force to the large arm 200 and the main arm 300 through the link mechanism 500, thereby avoiding all acting forces from being concentrated on the main arm 300, reducing the possibility of fatigue failure, and having better structural stability. Meanwhile, the telescopic cylinder 410 has shorter stroke and is more economical.
Further, the folding boom structure further includes a pitch driving mechanism 600 and a swing mechanism 700, the pitch driving mechanism 600 includes a base 610 and two pitch driving components 620, the base 610 is disposed on the frame 100 through the swing mechanism 700, the main arm 300 is hinged to the base 610 through a sixth hinge 340, so that the main arm 300 can rotate relative to the sixth hinge 340 on the base 610, and meanwhile, the swing mechanism 700 can drive the main arm 300 and the large arm 200 to swing together for 360 degrees, thereby further increasing the construction range.
Two pitch driving assemblies 620 are respectively disposed on the second back surface 320 and the second ventral surface 310 of the main arm 300, wherein one end of the pitch driving assembly 620 is hinged to the base 610 through a seventh hinge 630, and the other end of the pitch driving assembly 620 is hinged to the main arm 300 through an eighth hinge 640. Further, the second back surface 320 and the second ventral surface 310 of the main arm 300 are respectively provided with a second lug 350 for mounting the eighth hinge 640.
Both pitch drive assemblies 620 can deliver linear telescoping motion, optionally with pitch drive assembly 620 selected as pitch ram 621. It can be understood that when the two pitch drive assemblies 620 drive the main arm 300 to perform a pitch motion, the piston rod of one pitch cylinder 621 is extended and the piston rod of the other pitch cylinder 621 is contracted.
In this embodiment, by disposing the two pitch cylinders 621 on the second back surface 320 and the second ventral surface 310 of the main arm 300, respectively, the main arm 300 can be rotated more flexibly and at a larger angle about the sixth hinge 340. As shown in fig. 2, when the piston rod of the pitch cylinder 621 on the second back surface 320 extends to the limit, the piston rod of the pitch cylinder 621 on the second front surface 310 is controlled to extend to drive the main arm 300 to swing to the left side, so as to avoid the locking phenomenon in the above process.
In addition, by disposing the two pitch cylinders 621 on the sides of the second back surface 320 and the second ventral surface 310 of the main arm 300, respectively, the following effects are also provided:
(1) compared with the scheme that the oil cylinder is arranged on one side of the main arm 300, the scheme in the embodiment can disperse the applied force through the two pitch oil cylinders 621, and reduce the fatigue strength of the hinged part.
(2) By pulling the main arm 300 by the two pitch cylinders 621, even if one pitch cylinder 621 fails, the other pitch cylinder 621 can support or pull the main arm 300. If one of the pitch cylinders 621 bursts, the pitch cylinder 621 can be maintained in a pre-burst state by installing a hydraulic lock. Therefore, the tipping can be avoided, and the safety of people and equipment can be guaranteed.
Further, in some embodiments, a rock drilling boom assembly is also provided, which includes the above folding boom structure.
Further, in some embodiments, a rock drilling rig is also provided, and the rock drilling rig includes a frame 100 and the rock drilling boom assembly. Wherein, the bottom of the frame 100 is provided with a chassis assembly, optionally, the chassis assembly comprises a tire type running gear or a crawler type running gear.
Example two
Referring to fig. 2, 7 and 8, the present embodiment provides a foldable arm support structure. The present embodiment is an improvement on the technology of the first embodiment, and compared with the first embodiment, the difference is that:
in the present embodiment, the link mechanism 500 includes a third link member 560 and a fourth link member 570, that is, the third link member 560 and the fourth link member 570 replace the first link member 510 and the second link member 520 in the first embodiment.
Specifically, the fourth link 570 has three hinge holes 571, and the connection lines of the three hinge holes 571 form a virtual triangle. In this embodiment, the fourth link member 570 is designed to have a triangular structure, and the three hinge holes 571 are respectively located at three corners of the fourth link member 570. Further, the middle part of the fourth connecting rod 570 is hollow, so that the weight is reduced, and the mechanical property is improved.
One end of the third link member 560 is hinged to the second side surface 330 of the main arm 300, and the other end of the third link member 560 is hinged to one hinge hole 571 in the fourth link member 570. The other two hinge holes 571 of the fourth link 570 are respectively hinged to the first side 230 of the arm 200 and the telescopic cylinder 410, i.e. the three hinge holes 571 of the fourth link 570 are respectively hinged to the third link 560, the arm 200 and the telescopic cylinder 410. One end of the telescopic cylinder 410, which is far away from the fourth link 570, is hinged to the first back surface 220 of the large arm 200.
The folding arm support structure provided in this embodiment can also achieve the effect of the folding arm support structure provided in the first embodiment. It should be noted that, as shown in fig. 8, an included angle formed between the third link member 560 and one side of the fourth link member 570 away from the main arm 300 (the side is connected to the third link member 560 and away from the third link member 560) is defined as C, and when C is less than or equal to 90 °, the force applied to the third link member 560 along the rod length direction is smaller than that applied to C greater than 90 °.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 the application. 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. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. The utility model provides a folding cantilever crane structure, is applied to the drill jumbo, its characterized in that, folding cantilever crane structure includes main arm, big arm, folding drive assembly and link mechanism:
the main arm is used for being connected with a frame of the drill jumbo;
the large arm is hinged to one end, far away from the frame, of the main arm and comprises a ventral surface opposite to the main arm when the large arm is folded and a back surface far away from the ventral surface;
the folding driving assembly is arranged on the back face, an output end of the folding driving assembly is hinged to the main arm and the large arm through the connecting rod mechanism respectively, and the folding driving assembly can drive the connecting rod mechanism to drive the large arm to swing relative to the main arm.
2. The folding boom structure of claim 1, wherein the linkage mechanism comprises a first linkage member and a second linkage member;
one end of the first connecting rod piece is hinged to the side surface of the main arm, and the other end of the first connecting rod piece is hinged to the second connecting rod piece and the folding driving assembly respectively;
one end of the second connecting rod piece, which is far away from the first connecting rod piece, is hinged to the side surface of the large arm;
one end of the folding driving assembly, which is far away from the first connecting rod, is hinged to the back of the large arm.
3. The folding boom structure of claim 2, wherein the length of the first link is greater than the length of the second link.
4. The folding arm support structure according to claim 1, wherein the linkage mechanism comprises a third linkage member and a fourth linkage member, wherein the fourth linkage member is provided with three hinge holes, and the connection lines of the three hinge holes form a virtual triangle;
one end of the third connecting rod piece is hinged to the side surface of the main arm, and the other end of the third connecting rod piece is hinged to one hinge hole in the fourth connecting rod piece;
the other two hinge holes of the fourth connecting rod piece are respectively hinged with the side surface of the large arm and the folding driving component;
one end of the folding driving assembly, which is far away from the fourth connecting rod piece, is hinged to the back of the large arm.
5. The folding boom structure of any one of claims 1-4, wherein the folding drive assembly is a telescopic cylinder, a cylinder body end of the telescopic cylinder is hinged with the linkage mechanism, and a piston end of the telescopic cylinder is hinged with a back surface of the large arm.
6. The folding boom structure of any one of claims 1-4, wherein the folding drive assembly is a telescopic cylinder, a piston end of the telescopic cylinder is hinged with the linkage mechanism, and a cylinder body end of the telescopic cylinder is hinged with a back surface of the large arm.
7. The folding boom structure of claim 1, further comprising a pitch driving mechanism, wherein the pitch driving mechanism comprises a base and two pitch driving components, the base is disposed on the frame, the main arm is hinged to the base, the two pitch driving components are respectively disposed on the back surface and the ventral surface of the main arm, one end of the pitch driving component is hinged to the base, and the other end of the pitch driving component is hinged to the main arm.
8. The folding boom structure of claim 7, wherein the folding boom structure further comprises a swing mechanism, the swing mechanism is disposed on the frame, and the base is disposed on the swing mechanism.
9. A rock drilling boom assembly comprising a folding boom construction according to any of claims 1-8.
10. A rock drilling rig comprising a rock drilling boom assembly as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220692732.1U CN217055048U (en) | 2022-03-28 | 2022-03-28 | Folding arm support structure, rock drilling arm support assembly and rock drilling trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220692732.1U CN217055048U (en) | 2022-03-28 | 2022-03-28 | Folding arm support structure, rock drilling arm support assembly and rock drilling trolley |
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| CN217055048U true CN217055048U (en) | 2022-07-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738338A (en) * | 2021-09-10 | 2021-12-03 | 张家口宣化华泰矿冶机械有限公司 | Automatic drilling angle adjusting system, drilling work mechanism and mine drill carriage |
| CN117569242A (en) * | 2023-12-29 | 2024-02-20 | 中煤科工开采研究院有限公司 | Dust flushing operation arm and dust flushing equipment |
| CN117758647A (en) * | 2023-12-29 | 2024-03-26 | 中煤科工开采研究院有限公司 | Mining tunnel dust-flushing vehicle |
-
2022
- 2022-03-28 CN CN202220692732.1U patent/CN217055048U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738338A (en) * | 2021-09-10 | 2021-12-03 | 张家口宣化华泰矿冶机械有限公司 | Automatic drilling angle adjusting system, drilling work mechanism and mine drill carriage |
| CN117569242A (en) * | 2023-12-29 | 2024-02-20 | 中煤科工开采研究院有限公司 | Dust flushing operation arm and dust flushing equipment |
| CN117758647A (en) * | 2023-12-29 | 2024-03-26 | 中煤科工开采研究院有限公司 | Mining tunnel dust-flushing vehicle |
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