Drill jumbo

Abstract

The drill jumbo comprises a frame, a slewing mechanism and an arm support, the slewing mechanism is arranged on the frame and comprises a slewing driving hydraulic cylinder and a slewing table, the slewing driving hydraulic cylinder can stretch out and draw back in the length direction of the slewing mechanism, the slewing table is provided with a first hinge point deviating from the slewing axis, and the first end of the slewing driving hydraulic cylinder is hinged to the frame; the second end of the rotary driving hydraulic cylinder is hinged to a first hinge point of the rotary table, and the rotary driving hydraulic cylinder can stretch to drive the rotary table to rotate relative to the frame; the arm support is arranged on the rotary table and rotates along with the rotary table. According to the drill jumbo, the occupied space of the frame can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a rock drilling trolley. Background Art

[0002] A rock drilling rig is a rock drilling device that uses the drill and blast method for tunnel and underground engineering. The structure of the rock drilling rig includes a boom, a slewing mechanism, and a frame. The boom is installed on the slewing mechanism and is rotatably connected to the frame through the slewing mechanism.

[0003] In order to improve efficiency, existing rock drilling rigs are equipped with multiple arms and corresponding slewing mechanisms on the frame, and each arm is distributed along the width direction of the frame. When the width of the frame remains unchanged, the size of the slewing mechanism in the width direction needs to be limited or even reduced. However, since the slewing mechanism includes a large-volume reducer, its overall size is large, which affects the arrangement and installation of multiple arms. Utility Model Content

[0004] The utility model provides a rock drilling trolley to solve the technical problem that a cab occupies the frame space.

[0005] According to one aspect of the utility model, a rock drilling rig is provided, the rock drilling rig comprising:

[0006] Frame;

[0007] A slewing mechanism is arranged on the frame, comprising a slewing driving hydraulic cylinder and a slewing table which can be extended and retracted along its length direction, wherein the slewing table has a first hinge point which deviates from the center line of the slewing axis, wherein a first end of the slewing driving hydraulic cylinder is hinged to the frame, and a second end is hinged to the first hinge point of the slewing table, and the slewing driving hydraulic cylinder can be extended and retracted to drive the slewing table to rotate relative to the frame;

[0008] The arm is arranged on the turntable and rotates along with the turntable.

[0009] In some embodiments, the arm comprises:

[0010] A folding arm frame having a folding function, wherein the folding arm frame is hinged to the turntable;

[0011] The telescopic arm is arranged at the end of the folding arm frame, and the telescopic arm can be telescoped along its own length direction.

[0012] In some embodiments, the folding arm frame comprises:

[0013] A first folding arm, hinged to the turntable;

[0014] a second folding arm, hinged to the first folding arm;

[0015] A first linkage mechanism;

[0016] A first folding drive assembly, used for cooperating with the first link mechanism to drive the first folding arm and the turntable to deflect and fold relative to each other; a second link mechanism;

[0017] The second folding driving assembly is used for cooperating with the second link mechanism to drive the first folding arm and the second folding arm to deflect and fold relative to each other.

[0018] In some embodiments, the first link mechanism is located on the front side of the first folding arm, and includes a first link and a second link, wherein the first end of the first link is hinged to the first folding arm, the first end of the second link is hinged to the turntable, and the second end of the first link is hinged to the second end of the second link to form a first movable hinge point;

[0019] A first folding drive assembly is located on the front side of the first folding arm, one end of the first folding drive assembly is hinged to the first movable hinge point, and the other end of the first folding drive assembly is hinged to the first folding arm;

[0020] The second link mechanism is located on the front side of the first folding arm, and includes a third link and a fourth link, wherein the first end of the third link is hinged to the first folding arm, the first end of the fourth link is hinged to the second folding arm, and the second end of the third link is hinged to the second end of the fourth link to form a second movable hinge point;

[0021] The second folding drive assembly is located on the front side of the first folding arm, one end of the second folding drive assembly is hinged to the second movable hinge point, and the other end of the second folding drive assembly is hinged to the first folding arm.

[0022] In some embodiments, the arm comprises:

[0023] A double-slewing mechanism, arranged at the telescopic end of the telescopic arm;

[0024] The propulsion mechanism is arranged on the double rotary mechanism, and the propulsion mechanism can rotate in a horizontal plane or a vertical plane under the drive of the double rotary mechanism.

[0025] In some embodiments, the drilling rig comprises:

[0026] Cab;

[0027] a third link mechanism, used for being hinged between the cab and the vehicle frame;

[0028] A cab driving mechanism, used for driving the third link mechanism to swing in the length direction of the frame;

[0029] When the third link mechanism swings backward to the end of its stroke, the cab is located at a relatively rearward position of the frame and supported by the frame; when the third link mechanism swings forward to the end of its stroke, the cab is located at a forward position of the frame and upwardly away from the frame.

[0030] In some embodiments, the third linkage mechanism includes a fifth linkage and a sixth linkage arranged in parallel, one end of the fifth linkage and the sixth linkage is hinged to the cab, and the other end of the fifth linkage and the sixth linkage is hinged to the frame; wherein, the hinge points of the fifth linkage, the sixth linkage and the cab and the hinge points of the fifth linkage, the sixth linkage and the frame are respectively located at the four corners of a parallelogram.

[0031] In some embodiments, the fifth connecting rod and the sixth connecting rod are both telescopic hydraulic cylinder groups.

[0032] In some embodiments, at least two arms are provided along the width direction of the frame.

[0033] In some embodiments, two arms are provided along the width direction of the frame, and the cab is provided between the two arms.

[0034] The utility model has the following beneficial effects: by hingedly connecting the rotary drive hydraulic cylinder at the first hinge point deviating from the rotary axis of the turntable, the turntable can be driven to rotate when the rotary drive hydraulic cylinder is extended and retracted. Compared with the existing rotary mechanism, the required size in the width direction of the frame is relatively small, so the space occupied by the frame can be significantly reduced, which is convenient for the arrangement and installation of the arm.

[0035] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0037] Figure 1 It is a structural schematic diagram of a rock drilling trolley of a preferred embodiment of the utility model;

[0038] Figure 2 It is a top view of the rotary mechanism of the rock drilling trolley of the preferred embodiment of the utility model;

[0039] Figure 3It is the front view of the slewing mechanism of the rock drilling jumbo in the preferred embodiment of the present utility model;

[0040] Figure 4 It is the schematic structural diagram of the cab, the third link mechanism and the cab drive mechanism of the rock drilling jumbo in the preferred embodiment of the present utility model;

[0041] Figure 5 It is the schematic diagram of the first unfolded state of the rock drilling jumbo in the preferred embodiment of the present utility model;

[0042] Figure 6 It is the schematic diagram of the first unfolded state of the rock drilling jumbo from another perspective in the preferred embodiment of the present utility model;

[0043] Figure 7 It is the schematic diagram of the folded state of the rock drilling jumbo in the preferred embodiment of the present utility model;

[0044] Figure 8 It is the schematic diagram of the folded state of the rock drilling jumbo from another perspective in the preferred embodiment of the present utility model;

[0045] Fig. 9 It is the schematic diagram of the second unfolded state of the rock drilling jumbo in the preferred embodiment of the present utility model;

[0046] Fig.10 It is the schematic diagram of the first unfolded state of the rock drilling jumbo from another perspective in the preferred embodiment of the present utility model.

[0047] Legend:

[0048] 10. Frame;

[0049] 20. Slewing mechanism; 21. Slewing drive hydraulic cylinder; 22. Slewing platform; 22a. First hinge point;

[0050] 30. Boom; 31. Folding boom; 311. First folding boom; 312. Second folding boom; 313. Second link mechanism; 3131. Third link; 3132. Fourth link; 3131a. Second movable hinge point; 314. Second folding drive assembly; 32. Telescopic boom; 33. First link mechanism; 331. First link; 332. Second link; 331a. First movable hinge point; 34. First folding drive assembly; 35. Double slewing mechanism; 36. Thrust mechanism;

[0051] 40. Cab;

[0052] 50. Third link mechanism; 51. Fifth link; 52. Sixth link;

[0053] 60. Cab drive mechanism. Detailed implementation manners

[0054] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0055] like Figure 1-10 As shown, a rock drilling rig of this embodiment includes a frame 10, a slewing mechanism 20 and a boom 30.

[0056] Please refer to Figure 1 The frame 10 is used to provide an installation reference for the slewing mechanism 20, and a running wheel may be provided at the lower part thereof to facilitate movement.

[0057] Please refer to Figure 2 and Figure 3 The slewing mechanism 20 is disposed on the frame 10, and includes a slewing driving hydraulic cylinder 21 and a slewing table 22. The slewing driving hydraulic cylinder 21 can be extended and retracted along its own length direction. The slewing table 22 is rotatably disposed on the frame 10. In some embodiments, a copper sleeve is disposed between the slewing table 22 and the frame 10 to achieve a rotatable connection. Specifically, the frame 10 has a central axis, the slewing table 22 is sleeved on the central axis, and the copper sleeve is disposed between the central axis and the slewing table 22. It can be understood that the copper sleeve can be replaced by a rolling bearing.

[0058] The turntable 22 has a first hinge point 22a deviating from the rotation axis, the first end of the rotation drive hydraulic cylinder 21 is hinged to the frame 10, and the second end is hinged to the first hinge point 22a of the turntable 22, and the rotation drive hydraulic cylinder 21 can be extended to drive the turntable 22 to rotate relative to the frame 10;

[0059] The arm 30 is disposed on the turntable 22 and rotates along with the turntable 22 .

[0060] In some embodiments, the turntable 22 has a hinge ear protruding laterally outward, and the first hinge point 22a is located on the hinge ear.

[0061] It can be understood that in some embodiments, the rotary drive hydraulic cylinder 21 includes a cylinder body and a piston rod, one end of the piston rod is arranged in the cylinder body, and the other end extends out of the cylinder body and is hinged to the rotary table 22. Due to its structural characteristics, it has a relatively long length as a whole, and relatively narrow width and height dimensions.

[0062] By hingedly connecting the slewing driving hydraulic cylinder 21 to the first hinge point 22a which is offset from the slewing axis of the slewing platform 22, the slewing driving hydraulic cylinder 21 can drive the slewing platform 22 to rotate when it is extended or retracted. Compared with the existing slewing mechanism 20, the required size in the width direction of the frame 10 is relatively small, so the space occupied in the width direction of the frame 10 can be significantly reduced, thereby facilitating the arrangement and installation of the arm.

[0063] It is understandable that in a construction environment with limited space, in order to meet the operating range of the boom 30, the boom 30 is generally longer. An overly long boom 30 makes the entire vehicle excessively long and the turning radius is too large. During tunnel driving, the requirement for rapid turning of the equipment cannot be met, causing driving inconvenience and affecting construction.

[0064] In some embodiments, the arm 30 includes a folding arm 31 and a telescopic arm 32. The folding arm 31 has a folding function and is hinged to the turntable 22. The telescopic arm 32 is disposed at the end of the folding arm 31 and can be telescopic along its length. It is understood that the use of the folding + telescopic arm 32 structure can increase the coverage of the arm 30, while reducing the overall size in the folded state, thereby improving the passing capacity.

[0065] The specific structure of the folding arm frame 31 is not limited. In some embodiments, the folding arm frame 31 includes a first folding arm 311 , a second folding arm 312 , a first connecting rod mechanism 33 , a first folding drive assembly 34 , a second connecting rod mechanism 313 and a second folding drive assembly 314 .

[0066] The first folding arm 311 is hinged to the turntable 22. The second folding arm 312 is hinged to the first folding arm 311. The first folding drive assembly 34 is used to cooperate with the first link mechanism 33 to drive the first folding arm 311 and the turntable 22 to deflect and fold relative to each other. The second folding drive assembly 314 is used to cooperate with the second link mechanism 313 to drive the first folding arm 311 and the second folding arm 312 to deflect and fold relative to each other.

[0067] The first folding drive assembly 34 cooperates with the first link mechanism 33 to drive the first folding arm 311 and the turntable 22 to deflect and fold relative to each other. The second folding drive assembly 314 cooperates with the second link mechanism 313 to drive the first folding arm 311 and the second folding arm 312 to deflect and fold relative to each other, thereby realizing the folding action of the folding arm frame 31.

[0068] In some embodiments, the first link mechanism 33 is located on the front side of the first folding arm 311, and includes a first link 331 and a second link 332. The first end of the first link 331 is hinged to the first folding arm 311, the first end of the second link 332 is hinged to the turntable 22, and the second end of the first link 331 and the second end of the second link 332 are hinged to form a first movable hinge point 331a. The first folding drive assembly 34 is located on the front side of the first folding arm 311, one end of the first folding drive assembly 34 is hinged to the first movable hinge point 331a, and the other end of the first folding drive assembly 34 is hinged to the first folding arm 311. The second link mechanism 313 is located on the front side of the first folding arm 311, and includes a third link 3131 and a fourth link 3132. The first end of the third link 3131 is hinged to the first folding arm 311, the first end of the fourth link 3132 is hinged to the second folding arm 312, and the second end of the third link 3131 is hinged to the second end of the fourth link 3132 to form a second movable hinge point 3131a. The second folding drive assembly 314 is located on the front side of the first folding arm 311, one end of the second folding drive assembly 314 is hinged to the second movable hinge point 3131a, and the other end of the second folding drive assembly 314 is hinged to the first folding arm 311.

[0069] The front side of the first folding arm 311 refers to the side facing the support surface during operation. Figure 1 The middle is the right side of the first folding arm 311.

[0070] It can be understood that the hinge point between the first end of the first connecting rod 331 and the first folding arm 311, the hinge point between the first end of the first connecting rod 332 and the turntable 22, the first movable hinge point 331a, and the hinge point between the first folding arm 311 and the turntable 22 are arranged in a quadrilateral, which respectively constitute the four corners of the above quadrilateral. In this way, the first folding arm 311 can be flattened and folded.

[0071] It can be understood that the extension and retraction of the first folding drive assembly 34 changes the swing angle of the folding arm frame 31. Since the first folding drive assembly 34 and the first connecting rod mechanism 33 are both located on the front side of the first folding arm 311, no interference will occur during the backward swinging of the first folding arm 311. Therefore, the first folding arm 311 can swing backward to an angle parallel to the frame 10.

[0072] The hinge point between the first connecting rod 331 and the first folding arm 311 is the hinge point of the first connecting rod 331 , and the hinge point of the other end of the first folding drive assembly 34 is located on the side of the hinge point of the first connecting rod 331 away from the turntable 22 .

[0073] In some embodiments, the first connecting rod 331 and the first connecting rod 332 are both arc-shaped connecting rods, the middle portion of the first connecting rod 331 is bent toward the side away from the turntable 22 , and the middle portion of the first connecting rod 332 is bent toward the side away from the turntable 22 .

[0074] In some embodiments, the hinge point between the first folding arm 311 and the turntable 22 is higher than the hinge point between the first end of the first connecting rod 332 and the turntable 22. Specifically, the turntable 22 has a mounting boss, and the cross section of the mounting boss is a triangular structure, wherein the first end of the first connecting rod 332 is hinged to a first corner of the mounting boss, and the first folding arm 311 is hinged to a second corner of the mounting boss, wherein the height of the second corner is higher than the height of the first corner, and the second corner is located relatively to the rear of the first corner.

[0075] It can be understood that the angle between the first folding arm 311 and the second folding arm 312 can be adjusted through the second connecting rod mechanism 313 and the second folding driving assembly 314 to control the expansion and folding of the folding arm frame 31.

[0076] It is understood that when unfolded, the height of the arm 30 is determined by the angle of the first folding arm 311 relative to the frame 10, and when the first folding arm 311 is in a vertical state, the height of the arm 30 is the largest. It should be added that, in the retracted state, the unfolding angle of the first folding arm 311 relative to the frame 10 is 0 degrees. When the unfolding angle of the first folding arm 311 is greater than 90 degrees, the overall amplitude of the arm 30 increases.

[0077] It can be understood that the first end of the third link 3131 and the hinge point of the first folding arm 311, the first end of the fourth link 3132 and the hinge point of the second folding arm 312, the second movable hinge point 3131a, and the hinge point of the first folding arm 311 and the second folding arm 312 are distributed in a quadrilateral, which respectively constitute the four corners of the above-mentioned quadrilateral.

[0078] It is understandable that, in the retracted state, the angle between the first folding arm 311 and the second folding arm 312 is 0 degrees, and in the unfolded state, it can be unfolded to a maximum of 270 degrees. Specifically, the third link 3131 and the fourth link 3132 of the second link mechanism 313 are both located at the front side of the first folding arm 311 or the second folding arm 312, so that when the second folding arm 312 can be folded to the backward direction, the third link 3131 and the fourth link 3132 will not interfere with each other.

[0079] In some embodiments, the first folding arm 311 has a straight portion and a bent portion connected to each other, and the second folding arm 312 also has a straight portion and a bent portion connected to each other, and the bent portion of the first folding arm 311 is hinged to the bent portion of the second folding arm 312. In this way, when the first folding arm 311 and the second folding arm 312 are folded to be parallel, the first folding arm 311 and the second folding arm 312 will not interfere with each other.

[0080] In some embodiments, the arm 30 includes a double rotary mechanism 35 and a propulsion mechanism 36. The double rotary mechanism 35 is disposed at the telescopic end of the telescopic arm 32. The propulsion mechanism 36 is disposed on the double rotary mechanism 35, and the propulsion mechanism 36 can rotate in a horizontal plane or a vertical plane under the drive of the double rotary mechanism 35. In this way, the telescopic arm 32 can rotate in both a horizontal plane and a vertical plane, and its flexibility is greatly improved, which is convenient for the rock drill to drive the drill rod to perform long-distance rock drilling operations. The double rotary mechanism 35 and the propulsion mechanism 36 are prior arts, and their specific structures can refer to CN206942663U.

[0081] In some embodiments, the telescopic arm 32 includes a cylinder disposed on the second folding arm and a piston rod movably disposed on the cylinder, and the telescopic end of the telescopic arm 32 is one end of the piston rod. Its extension can compensate for the length, making the whole longer; at the same time, when it is retracted, the smaller the length, the better the passability of the drilling rig.

[0082] It is understandable that a rock drill, a drill rod, etc. are installed on the propulsion mechanism 36, and the rock drill performs rock drilling operations under the action of the propulsion hydraulic cylinder of the propulsion mechanism 36. Therefore, a large range of construction movements can be performed under the action of the double rotary mechanism 35 and the propulsion mechanism 36, thereby improving the applicability of construction.

[0083] Please refer to Figure 4 In some embodiments, the drilling rig includes a cab 40, a third link mechanism 50, and a cab drive mechanism 60. The cab 40 is an operating space for a driver. The third link mechanism 50 is hinged between the cab 40 and the frame 10. The cab drive mechanism 60 is used to drive the third link mechanism 50 to swing in the length direction of the frame 10.

[0084] When the third link mechanism 50 swings backward to the end of its stroke, the cab 40 is located at a relatively rearward position of the frame 10 and is supported by the frame 10 ; when the third link mechanism 50 swings forward to the end of its stroke, the cab 40 is located at a forward position of the frame 10 and moves upward away from the frame 10 .

[0085] In this application, the front refers to Figure 1 The right side of the Figure 1 on the left side.

[0086] When driving, the cab 40 is located relatively behind the frame 10 and is not supported by the frame 10 to avoid stress on the third link mechanism 50. When working, the cab 40 is moved to the front of the frame 10 and to a relatively high position to provide the operator with a good view.

[0087] In some embodiments, the third link mechanism 50 includes a fifth link 51 and a sixth link 52 arranged in parallel, one end of the fifth link 51 and the sixth link 52 is hinged to the cab 40, and the other end of the fifth link 51 and the sixth link 52 is hinged to the frame 10; wherein the hinge points of the fifth link 51, the sixth link 52 and the cab 40 and the hinge points of the fifth link 51, the sixth link 52 and the frame 10 are respectively located at the four corners of a parallelogram. In this way, the orientation of the cab 40 remains unchanged during the swinging process.

[0088] In some embodiments, the third linkage mechanism 50 includes two sets of telescopic hydraulic cylinders arranged in parallel, one end of the two sets of telescopic hydraulic cylinders is hinged to the frame 10 , and the other end is hinged to the cab 40 .

[0089] The position of the cab 40 is adjusted by extending and retracting the telescopic hydraulic cylinder. During driving, the telescopic oil cylinder can reduce the overall length of the third link mechanism 50, thereby reducing the length requirement of the frame 10. In the working state, the telescopic oil cylinder can increase the final height of the cab 40, thereby providing a better working field of vision.

[0090] In some embodiments, in the length direction of the frame 10 , the hinge point of the telescopic hydraulic cylinder on the rear side is lower than the hinge point of the telescopic hydraulic cylinder on the front side.

[0091] Each group of telescopic hydraulic cylinders may include two or more hydraulic cylinders distributed along the width direction to improve support stability.

[0092] The number of booms 30 on the frame 10 is not limited. In some embodiments, at least two booms 30 are provided along the width direction of the frame 10 to improve the operation efficiency. It is understandable that each boom 30 is provided with a corresponding slewing mechanism 20 so that each boom 30 can operate independently.

[0093] In some embodiments, two arms 30 are provided along the width direction of the vehicle frame 10 , and the cab 40 is provided between the two arms 30 . In this way, the view of the cab 40 in a relatively middle position will not be blocked by the two arms 30 .

[0094] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rock drilling rig, characterized in that: The drilling rig comprises: Frame (10); A slewing mechanism (20) is arranged on the vehicle frame (10), comprising a slewing driving hydraulic cylinder (21) and a slewing platform (22) which can be extended and retracted along its own length direction, wherein the slewing platform (22) has a first hinge point (22a) which deviates from the center line of the slewing axis, a first end of the slewing driving hydraulic cylinder (21) is hinged to the vehicle frame (10), and a second end is hinged to the first hinge point (22a) of the slewing platform (22), and the slewing driving hydraulic cylinder (21) can be extended and retracted to drive the slewing platform (22) to rotate relative to the vehicle frame (10); An arm (30) is disposed on the turntable (22) and rotates along with the turntable (22); Cab (40); A third link mechanism (50) is used for being hinged between the cab (40) and the vehicle frame (10); A cab driving mechanism (60) for driving the third link mechanism (50) to swing in the length direction of the vehicle frame (10); When the third link mechanism (50) swings backward to the end of its travel, the cab (40) is located at a relatively rearward position relative to the frame (10) and is supported by the frame (10); when the third link mechanism (50) swings forward to the end of its travel, the cab (40) is located at a forward position relative to the frame (10) and is upwardly away from the frame (10).

2. The drilling rig according to claim 1, characterized in that: The arm support (30) comprises: A folding arm (31) having a folding function, the folding arm being hinged to the turntable (22); A telescopic arm (32) is arranged at the end of the folding arm frame (31), and the telescopic arm (32) can be telescoped along its own length direction.

3. The drilling rig according to claim 2, characterized in that: The folding arm frame (31) comprises: A first folding arm (311) is hinged to the rotating platform (22); A second folding arm (312) is hinged to the first folding arm (311); A first connecting rod mechanism (33); a first folding drive assembly (34) for cooperating with the first link mechanism (33) to drive the first folding arm (311) and the turntable (22) to deflect and fold relative to each other; A second connecting rod mechanism (313); The second folding driving assembly (314) is used for cooperating with the second connecting rod mechanism (313) to drive the first folding arm (311) and the second folding arm (312) to deflect and fold relative to each other.

4. The drilling rig according to claim 3, characterized in that: The first link mechanism (33) is located on the front side of the first folding arm (311), and comprises a first link (331) and a second link (332); the first end of the first link (331) is hinged to the first folding arm (311), the first end of the second link (332) is hinged to the turntable (22), and the second end of the first link (331) is hinged to the second end of the second link (332) to form a first movable hinge point (331a); A first folding drive assembly (34) is located on the front side of the first folding arm (311), one end of the first folding drive assembly (34) is hinged to the first movable hinge point (331a), and the other end of the first folding drive assembly (34) is hinged to the first folding arm (311); the second link mechanism (313) is located on the front side of the first folding arm (311), and comprises a third link (3131) and a fourth link (3132), the first end of the third link (3131) is hinged to the first folding arm (311), the first end of the fourth link (3132) is hinged to the second folding arm (312), and the second end of the third link (3131) is hinged to the second end of the fourth link (3132) to form a second movable hinge point (3131a); The second folding drive component (314) is located on the front side of the first folding arm (311), one end of the second folding drive component (314) is hinged to the second movable hinge point (3131a), and the other end of the second folding drive component (314) is hinged to the first folding arm (311).

5. The drilling rig according to claim 2, characterized in that: The arm frame comprises: A double-swivel mechanism (35) is arranged at the telescopic end of the telescopic arm (32); The propulsion mechanism (36) is arranged on the double rotary mechanism (35), and the propulsion mechanism (36) can rotate in a horizontal plane or a vertical plane under the drive of the double rotary mechanism (35).

6. The drilling rig according to claim 1, characterized in that: The third link mechanism (50) comprises a fifth link (51) and a sixth link (52) arranged in parallel, one end of the fifth link (51) and the sixth link (52) being hinged to the cab (40), and the other end of the fifth link (51) and the sixth link (52) being hinged to the vehicle frame (10); wherein the hinge points of the fifth link (51), the sixth link (52) and the cab (40) and the hinge points of the fifth link (51), the sixth link (52) and the vehicle frame (10) are respectively located at the four corners of a parallelogram.

7. The drilling rig according to claim 6, characterized in that: The fifth connecting rod (51) and the sixth connecting rod (52) are both telescopic hydraulic cylinder groups.

8. The drilling rig according to claim 1, characterized in that: At least two arms are arranged along the width direction of the vehicle frame (10).

9. The drilling rig according to claim 1, wherein: Two booms are arranged along the width direction of the vehicle frame (10), and the cab (40) is arranged between the two booms.

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