Folding drill boom and engineering truck

Abstract

The utility model provides a folding drill boom and an engineering truck. The folding drill arm comprises a basic arm, a lifting arm installed at the upper end of the basic arm in a pitching mode, a folding arm hinged to the end, away from the basic arm, of the lifting arm, and a drilling mechanism hinged to the end, away from the lifting arm, of the folding arm. The drilling mechanism, the folding arm and the lifting arm sequentially rotate in the direction close to the basic arm to form a folded state, and otherwise, the folding arm is in an unfolded state. And a swinging mechanism for driving the basic arm to swing left and right is arranged on the basic arm. The swing mechanism capable of driving the basic arm to swing left and right is additionally arranged on the basic arm, so that the drilling operation range is adjusted, and the transverse perpendicular relation between the folding drill arm and the operation ground is adjusted; besides, the lifting arm is connected with the basic arm in a pitching mode, so that the requirement of the folding drill arm for adjusting drilling positioning in the longitudinal direction is met, and the obstacle crossing operation capacity of the folding drill arm is also achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling machines, in particular to a foldable drilling arm and an engineering vehicle. Background Art

[0002] The drill arm is an important structural form commonly used in drilling rig equipment. It is widely used in drilling rig equipment because of its advantages such as small space occupied in the whole mechanical equipment, strong operating capacity, flexible operating mode, etc., and can meet different usage requirements.

[0003] The existing arm-type down-the-hole drill rigs on the market have a large number of parts required to compose their drill arms, complex structures, and numerous hydraulic pipeline arrangements. In addition, the operating range of the drill arm is narrow, and it is unable to operate across obstacles. When fixed at a fixed point, it is impossible to achieve drilling positioning by adjusting the drill arm alone. The entire vehicle needs to be moved to cooperate with the drill arm to achieve drilling positioning.

[0004] There is also a drill arm of an engineering vehicle, which uses a horizontal telescopic cylinder to drive the drill arm to move horizontally forward and backward. Although it can locate the drilling hole by relying solely on the drill arm, it has the problem of difficulty in cleaning the mud on the drill rod, and it is also impossible to operate across obstacles. Utility Model Content

[0005] The utility model aims to provide a foldable drill arm and an engineering vehicle, which can adjust the drilling operation range by swinging left and right.

[0006] The technical solution of the utility model is: a folding drill arm, comprising a basic arm, a lifting arm installed on the upper end of the basic arm in a pitching manner, a folding arm hinged to the end of the lifting arm away from the basic arm, and a drilling mechanism hinged to the end of the folding arm away from the lifting arm; the drilling mechanism, the folding arm and the lifting arm are rotated in sequence in a direction close to the basic arm to form a folded state, and vice versa to form an unfolded state; the basic arm is provided with a swing mechanism for driving the basic arm to swing left and right.

[0007] In the above scheme, the drilling operation range is adjusted by adding a swing mechanism on the basic arm that can drive it to swing left and right, thereby adjusting the lateral and vertical relationship between the folding drill arm and the working ground; in addition, the lifting arm is connected to the basic arm in a pitching manner, thereby achieving the requirement of adjusting the drilling positioning of the folding drill arm in the longitudinal direction, and also giving the folding drill arm a folding function, thereby realizing the ability of the folding drill arm to operate over obstacles.

[0008] Preferably, the folding drill arm also includes a folding mechanism, which includes a folding cylinder, a second pin, a third pin, an outer pull plate, an inner pull plate, a fourth pin and a fifth pin. One end of the lifting arm is provided with a hinge point A and a hinge point B, the other end of the lifting arm is provided with a hinge point E, and one end of the folding arm is provided with a hinge point C and a hinge point D. One end of the folding cylinder is hinged to the hinge point E through the second pin, and the other end of the folding cylinder is hinged to the outer pull plate and the inner pull plate at the same time; the hinge point A coincides with the hinge point C and is hinged through one of the third pins, the end of the outer pull plate away from the inner pull plate is hinged to the hinge point B through the fifth pin, and the end of the inner pull plate away from the outer pull plate is hinged to the hinge point D through another third pin.

[0009] Preferably, the folding drill arm also includes a flipping mechanism, which includes a flipping cylinder, a sixth pin, a seventh pin, a connecting plate, a connecting frame and an eighth pin, one end of the flipping cylinder is hinged to the folding arm through the sixth pin, the other end of the flipping cylinder is hinged to one end of the connecting frame and one end of the connecting plate through the seventh pin, the other end of the connecting frame is hinged to the drilling mechanism through the eighth pin, and the other end of the connecting plate is hinged to an end of the folding arm close to the drilling mechanism through another seventh pin.

[0010] Preferably, the drilling mechanism includes an arm, a guide seat slidably arranged on the arm, a power head and a drilling tool installed at the front end of the guide seat in the sliding direction, the guide seat, the power head and the drilling tool are located on one side of the arm, and the other side of the arm is hinged to the folding arm.

[0011] Preferably, the drilling mechanism further comprises a sprocket mechanism, and the sprocket mechanism comprises a sprocket arranged on the arm, and a chain having one end connected to the sprocket and the other end connected to the guide seat.

[0012] The utility model also provides an engineering vehicle, comprising a chassis, a rotating platform arranged on the chassis and the above-mentioned folding drill arm, wherein the basic arm of the folding drill arm is hinged to the rotating platform through a hinge shaft, and the swing mechanism is hinged between the basic arm and the rotating platform.

[0013] Preferably, the revolving platform is also connected to a foldable or unfoldable vertical pole arm, and the end of the vertical pole arm is provided with detachable accessories.

[0014] Preferably, the attachment is a breaker hammer or a bucket.

[0015] Preferably, the chassis includes a telescopic cylinder, a main body, tracks arranged on the left and right sides of the main body, and a wheel frame hinged at the front and rear ends of the chassis, one end of the telescopic cylinder is hinged to the main body, the other end of the telescopic cylinder is hinged to the wheel frame, and the end of the wheel frame is connected to a wheel; the telescopic cylinder is telescoped to allow the wheel frame to form a first position and a second position, in the first position, the wheel is lifted higher than the track, and in the second position, the wheel is lowered below the track.

[0016] Compared with the related art, the beneficial effects of the utility model are:

[0017] 1. The foldable drill arm is provided with a swing mechanism on the basic arm that can drive the basic arm to swing left and right to adjust the drilling operation range, thereby adjusting the horizontal and vertical relationship between the foldable drill arm and the working ground;

[0018] Second, the lifting arm is connected to the basic arm in a pitching manner, thereby realizing the requirement of adjusting the drilling position of the folding drill arm in the longitudinal direction, and also making the folding drill arm have a folding function, realizing the ability of the folding drill arm to operate over obstacles;

[0019] 3. The folding arm and the drilling mechanism are connected by a flip mechanism. The extension and retraction of the flip cylinder drives the connecting plate and the connecting frame to make the drilling mechanism rotate around the eighth pin, thereby achieving the verticality requirement between the drilling tool and the ground; moreover, when the flip cylinder is fully extended, the drilling mechanism can be folded to the part just below the folding arm to reduce the space when the entire folding drilling arm is retracted, and at the same time save space on the engineering vehicle, which is convenient for loading;

[0020] Fourth, the chassis of the engineering vehicle adopts a wheel-track combination structure, which fully integrates the advantages of both and is suitable for various work sites;

[0021] Fifth, a vertical pole arm is added to the engineering vehicle, and the end of the vertical pole arm can be detachably connected to various accessories to expand its operating range. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the foldable drill arm provided by the utility model when it is unfolded;

[0023] Figure 2 A schematic diagram of the structure of the foldable drill arm provided by the utility model when folded;

[0024] Figure 3 It is a connection diagram of the basic arm, luffing mechanism and lifting arm;

[0025] Figure 4 It is a connection diagram of the lifting arm, folding arm and folding mechanism;

[0026] Figure 5 is a schematic diagram of the drilling mechanism being folded or unfolded relative to the folding arm;

[0027] Figure 6 It is a structural schematic diagram of the drilling mechanism;

[0028] Figure 7 The utility model is a schematic structural diagram of the engineering vehicle provided by the utility model.

[0029] In the attached drawings: 1, articulated shaft; 2, swing mechanism; 3, basic arm; 4, luffing mechanism; 41, luffing cylinder; 42, first pin; 5, lifting arm; 6, folding mechanism; 61, folding cylinder; 62, second pin; 63, third pin; 64, outer pull plate; 65, inner pull plate; 66, fourth pin; 67, fifth pin; 7, folding arm; 8, flip mechanism; 81, flip cylinder; 82, sixth pin; 8 3. The seventh pin; 84. The connecting plate; 85. The connecting frame; 86. The eighth pin; 9. The drilling mechanism; 91. The drilling tool; 92. The boom; 93. The power head; 94. The guide seat; 95. The sprocket mechanism; 10. The chassis; 101. The main body; 102. The crawler track; 103. The wheel; 104. The wheel frame; 105. The telescopic cylinder; 20. The rotating platform; 30. The folding drill arm; 40. The vertical arm; 401. The accessories. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0031] like Figure 1 As shown, a folding drill arm 30 provided in this embodiment includes a hinge shaft 1, a swing mechanism 2, a basic arm 3, a variable amplitude mechanism 4, a lifting arm 5, a folding mechanism 6, a folding arm 7, a flipping mechanism 8 and a drilling mechanism 9.

[0032] like Figure 3 As shown, the luffing mechanism 4 includes a luffing cylinder 41 and three first pins 42. The upper end of the basic arm 3 is hinged to one end of the lifting arm 5 through the first first pin 42. The lower end of the luffing cylinder 41 is hinged to the lower end of the basic arm 3 through the second first pin 42. The upper end of the luffing cylinder 41 is hinged to the lifting arm 5 through the third first pin 42. The luffing cylinder 41 extends to drive the lifting arm 5 to rotate in a direction away from the basic arm 3 (i.e., Figure 3 The lifting arm 5 is unfolded by rotating clockwise as shown in the figure, and the lifting arm 5 is folded by rotating clockwise as shown in the figure. The lower end of the basic arm 3 is provided with a swing mechanism 2 for driving the basic arm 3 to swing left and right. The swing mechanism 2 is a swing cylinder, which is hinged between the basic arm 3 and the rotating platform 20.

[0033] When the swing cylinder is extended or retracted, it drives the basic arm 3 to swing left and right around the hinge shaft 1 (the direction of the left and right swing is the left and right direction of the driver in the cab), thereby adjusting the vertical relationship between the folding drill arm 30 and the working ground. When the amplitude cylinder 41 is extended or retracted, it drives the lifting arm 5 to rotate around the first pin 42, thereby achieving the requirement of adjusting the drilling position of the folding drill arm 30 in the longitudinal direction, and also achieving the ability of the folding drill arm 30 to operate over obstacles.

[0034] like Figure 4 As shown, the folding mechanism 6 includes a folding cylinder 61, a second pin 62, a third pin 63, an outer pull plate 64, an inner pull plate 65, a fourth pin 66 and a fifth pin 67. One end of the lifting arm 5 is provided with a hinge point A and a hinge point B, and the other end of the lifting arm 5 is provided with a hinge point E. The side surface of the folding arm 7 close to the lifting arm 5 is provided with a connecting seat 71, and the connecting seat 71 is provided with a hinge point C and a hinge point D. One end of the folding cylinder 61 is hinged to the hinge point E through the second pin 62. The other end of the folding cylinder 61 is hinged to the outer pull plate 64 and the inner pull plate 65 at the same time. The hinge point A coincides with the hinge point C and is hinged through one of the third pins 63. The end of the outer pull plate 64 away from the inner pull plate 65 is hinged to the hinge point B through the fifth pin 67. The end of the inner pull plate 65 away from the outer pull plate 64 is hinged to the hinge point D through another third pin 63.

[0035] When the folding oil cylinder 61 is extended or retracted, the folding arm 7 is driven to rotate around the fourth pin 66, thereby achieving the requirement of adjusting the drilling position of the folding drill arm 30 in the longitudinal direction, and also achieving the ability of the folding drill arm 30 to operate over obstacles. At the same time, since the connecting seat 71 is offset on the folding arm 7, the space required for the folding drill arm 30 to retract is greatly reduced.

[0036] like Figure 1 , Figure 5 As shown, the flip mechanism 8 includes a flip cylinder 81, a sixth pin 82, a seventh pin 83, a connecting plate 84, a connecting frame 85 and an eighth pin 86. One end of the flip cylinder 81 is hinged to the folding arm 7 through the sixth pin 82, and the other end of the flip cylinder 81 is hinged to one end of the connecting frame 85 and one end of the connecting plate 84 through one seventh pin 83. The other end of the connecting frame 85 is hinged to the drilling mechanism 9 through the eighth pin 86, and the other end of the connecting plate 84 is hinged to one end of the folding arm 7 near the drilling mechanism 9 through another seventh pin 83.

[0037] When the tilting oil cylinder 81 is extended or retracted, it drives the connecting plate 84 and the connecting frame 85 to rotate the drilling mechanism 9 around the eighth pin 86, thereby achieving the verticality requirement of the drilling tool 91 to the ground. When the tilting oil cylinder 81 is fully extended, the drilling mechanism 9 can be rotated counterclockwise to be folded to the bottom of the folding arm 7, thereby reducing the space required after retraction.

[0038] like Figure 6 As shown, the drilling mechanism 9 includes an arm 92, a guide seat 94 slidably arranged on the arm 92, a power head 93 installed at the front end of the guide seat 94 in the sliding direction, a drilling tool 91 and a sprocket mechanism 95. The guide seat 94, the power head 93 and the drilling tool 91 are located on one side of the arm 92, and the other side of the arm 92 is hinged to the folding arm 7. The sprocket mechanism 95 includes a sprocket arranged on the arm 92, and a chain with one end connected to the sprocket and the other end connected to the guide seat 94.

[0039] The sprocket mechanism 95 drives the guide seat 94 to move back and forth along the arm 92 in a straight line, so that the drilling tool 91 and the power head 93 have the ability to move, and then the power head 93 drives the drilling tool 91 to rotate to achieve the drilling function. The drilling tool 91 is a spiral drilling tool.

[0040] like Figure 2 As shown, the drilling mechanism 9, the folding arm 7, and the lifting arm 5 are rotated in a direction close to the basic arm 3 in sequence to form a folded state. Figure 1 As shown, it is formed in an expanded state.

[0041] like Figure 7 As shown, the utility model also provides an engineering vehicle, comprising a chassis 10, a rotating platform 20 arranged on the chassis 10, and the folding drilling arm 30. The lower end of the basic arm 3 is hinged to the rotating platform 20 through a hinge shaft 1, and the swing mechanism 2 is hinged between the basic arm 3 and the rotating platform 20.

[0042] The rotary platform 20 is also connected to a foldable or unfoldable vertical arm 40, and a detachable attachment 401 is provided at the end of the vertical arm 40. The attachment 401 is a breaker hammer or a bucket. The rotary platform 20 can provide 360° continuous rotation freedom, so that the vertical arm 40 and the folding drill arm 30 can operate without dead angles. The vertical arm 40 is selected as a folding arm, which has the function of folding and unfolding.

[0043] The chassis 10 includes a telescopic oil cylinder 105, a body 101, tracks 102 arranged on the left and right sides of the body 101, and a wheel frame 104 hinged at the front and rear ends of the chassis 10. One end of the telescopic oil cylinder 105 is hinged to the body 101, and the other end of the telescopic oil cylinder 105 is hinged to the wheel frame 104. The end of the wheel frame 104 is connected to the wheel 103 through the axle. The telescopic oil cylinder 105 is telescopic to make the wheel frame 104 form a first position and a second position. In the first position, the wheel 103 is lifted higher than the track 102, so that the track 102 is grounded for driving. In the second position, the wheel 103 is lowered below the track 102, so that the wheel 103 is grounded for driving.

[0044] The engineering vehicle of the utility model can adapt to complex working conditions and has multi-purpose characteristics.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A foldable drill arm, characterized in that: The invention comprises a basic arm (3), a lifting arm (5) mounted on the upper end of the basic arm (3) in a manner capable of pitching, a folding arm (7) hinged to an end of the lifting arm (5) away from the basic arm (3), and a drilling mechanism (9) hinged to an end of the folding arm (7) away from the lifting arm (5); the drilling mechanism (9), the folding arm (7), and the lifting arm (5) are rotated in a direction close to the basic arm (3) to form a folded state, and vice versa to form an unfolded state; the basic arm (3) is provided with a swing mechanism (2) for driving the basic arm (3) to swing left and right.

2. The foldable drill arm according to claim 1, characterized in that: The folding mechanism (6) further comprises a folding cylinder (61), the folding mechanism (6) comprising a folding oil cylinder (61), a second pin shaft (62), a third pin shaft (63), an outer pull plate (64), an inner pull plate (65), a fourth pin shaft (66) and a fifth pin shaft (67); one end of the lifting arm (5) is provided with a hinge point A and a hinge point B; the other end of the lifting arm (5) is provided with a hinge point E; one end of the folding arm (7) is provided with a hinge point C and a hinge point D; one end of the folding oil cylinder (61) is connected to the inner pull plate (65) by the second pin shaft. The shaft (62) is hinged to the hinge point E, and the other end of the folding cylinder (61) is hinged to the outer pull plate (64) and the inner pull plate (65) at the same time; the hinge point A coincides with the hinge point C and is hinged through one of the third pin shafts (63); the end of the outer pull plate (64) away from the inner pull plate (65) is hinged to the hinge point B through a fifth pin shaft (67); and the end of the inner pull plate (65) away from the outer pull plate (64) is hinged to the hinge point D through another third pin shaft (63).

3. The foldable drill arm according to claim 1, characterized in that: The invention also comprises a flipping mechanism (8), wherein the flipping mechanism (8) comprises a flipping cylinder (81), a sixth pin (82), a seventh pin (83), a connecting plate (84), a connecting frame (85) and an eighth pin (86); one end of the flipping cylinder (81) is hinged to the folding arm (7) via the sixth pin (82); the other end of the flipping cylinder (81) is hinged to one end of the connecting frame (85) and one end of the connecting plate (84) via one of the seventh pins (83); the other end of the connecting frame (85) is hinged to the drilling mechanism (9) via the eighth pin (86); the other end of the connecting plate (84) is hinged to one end of the folding arm (7) close to the drilling mechanism (9) via another of the seventh pins (83).

4. The foldable drill arm according to claim 1, characterized in that: The drilling mechanism (9) comprises an arm frame (92), a guide seat (94) slidably arranged on the arm frame (92), a power head (93) and a drilling tool (91) mounted at the front end of the guide seat (94) in the sliding direction, wherein the guide seat (94), the power head (93) and the drilling tool (91) are located on one side of the arm frame (92), and the other side of the arm frame (92) is hinged to the folding arm (7).

5. The foldable drill arm according to claim 4, characterized in that: The drilling mechanism (9) further comprises a sprocket mechanism (95), wherein the sprocket mechanism (95) comprises a sprocket provided on the arm frame (92), and a chain having one end connected to the sprocket and the other end connected to the guide seat (94).

6. An engineering vehicle, comprising a chassis (10) and a rotating platform (20) arranged on the chassis (10), characterized in that: It also comprises a foldable drill arm as claimed in any one of claims 1 to 5, wherein the basic arm (3) of the foldable drill arm is hinged to the rotating platform (20) via a hinge shaft (1), and the swing mechanism (2) is hinged between the basic arm (3) and the rotating platform (20).

7. The engineering vehicle according to claim 6, characterized in that: The rotating platform (20) is also connected to a foldable or unfoldable vertical pole arm (40), and a detachable attachment (401) is provided at the end of the vertical pole arm (40).

8. The engineering vehicle according to claim 7, characterized in that: The attachment (401) is a breaker hammer or a bucket.

9. The engineering vehicle according to claim 6, characterized in that: The chassis (10) comprises a telescopic cylinder (105), a body (101), crawlers (102) arranged on the left and right sides of the body (101), and a wheel frame (104) hinged at the front and rear ends of the chassis (10), one end of the telescopic cylinder (105) is hinged to the body (101), the other end of the telescopic cylinder (105) is hinged to the wheel frame (104), and the end of the wheel frame (104) is connected to a wheel (103); the telescopic cylinder (105) is telescopic to enable the wheel frame (104) to form a first position and a second position, in the first position, the wheel (103) is raised above the crawler (102), and in the second position, the wheel (103) is lowered below the crawler (102).

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