Rear suspension hole digging device

Abstract

According to the rear suspension hole digging device, the two ends of a connecting rod piece are hinged to the hinged point positions of a traction towing device and a suspension support of a tractor respectively, and the suspension support can be adaptively adjusted according to the size of a rear traction towing device of the tractor in cooperation with the flexibility of the connecting rod piece; the hanging bracket is arranged on the ground to ensure that the whole hanging bracket is in a vertical state relative to the ground, so that a drill arranged on the hanging bracket is also in a vertical state, and then the bottom of the drill is supported by at least two supports, so that the drill is stably kept vertical on the ground, and the calibration process of precision such as perpendicularity and depth of formed holes is realized in space. And then the drilling machine is driven to operate by the power output device of the tractor so as to carry out hole forming operation, so that the agricultural tractor can be modified into the hole guiding machine at the construction site, the lease cost is reduced on the premise of not influencing the working efficiency, the mechanical cost of a project is reduced, and the engineering cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hole-forming construction, and in particular to a rear-suspension hole-forming device. Background Art

[0002] At present, in the centralized photovoltaic power station project, the photovoltaic panel support foundation is mostly designed as a micro-cast pile, with two rows of front and back, the pile diameter is 220mm, the pile length is 2500-2700mm, with embedded steel pipes inside, and the concrete is poured on site. Although the amount of steel bars and concrete used in each pile is small, the number of piles is huge. According to the power generation capacity of 200MW, nearly 122,000 piles are required. The construction progress of the cast-in-place piles is directly related to the development of the subsequent installation project. For this reason, the construction unit needs a large number of drilling machines. Generally, the construction unit purchases or rents formal drilling machines, but whether it is renting or purchasing, the cost is relatively high. Summary of the invention

[0003] The purpose of the present application is to provide a rear-mounted hole-digging device, which can be used to convert an agricultural tractor into a hole-digging machine at the construction site, thereby reducing the rental cost without affecting the work efficiency, reducing the project's machinery costs, and reducing the engineering cost.

[0004] The embodiments of the present application can be implemented as follows:

[0005] In a first aspect, the present invention provides a rear suspension hole digging device, comprising:

[0006] A suspension bracket having at least three hinge points;

[0007] A connecting rod, one end of which is hinged to the hinge point and the other end of which is hinged to the tractor's towing and trailer device, wherein the connecting rod can be extended or shortened;

[0008] a drilling rig fixed to the suspension bracket, wherein the power of the drilling rig is provided by a power output device of the tractor;

[0009] At least two supports, the height of which can be adjusted, are used to support the bottom of the drilling rig.

[0010] In an optional embodiment, the suspension bracket is welded from channel steel and is in the shape of an equilateral triangle as a whole.

[0011] In an optional embodiment, the three hinge points are respectively located close to the vertex positions of an equilateral triangle.

[0012] In an optional embodiment, both ends of the connecting rod are provided with ball joints for connection.

[0013] In an optional embodiment, the drilling rig includes a main frame, a slide frame, a generator, an electric motor and a drill pipe;

[0014] The main frame is fixed to the suspension bracket, and the support is placed on the bottom of the main frame;

[0015] A generator is fixed to the main frame and is used to be connected to the power output device to supply power to the electric motor;

[0016] The slide can be lifted and lowered on the main frame;

[0017] The motor is arranged on the slide, and the drill rod is drivingly connected to the motor.

[0018] In an optional embodiment, a slideway is provided on the main frame, and the slideway can be slidably arranged on the slideway.

[0019] In an optional embodiment, the drilling rig further comprises a hydraulic shaft connected between the top of the main frame and the slide, wherein the hydraulic shaft is used to connect to the hydraulic system of the tractor.

[0020] In an optional embodiment, the drilling rig further comprises a transmission machine disposed on the slide, and the motor is connected to the drill rod via the transmission machine.

[0021] In an optional embodiment, the bottom of the main frame is formed by an I-beam base, and the generator is fixed on the I-beam base.

[0022] In an optional embodiment, the support adopts a universally adjustable support hinge support.

[0023] Compared with the prior art, the beneficial effects of the embodiments of the present application include, for example:

[0024] By connecting the two ends of the rod to respectively articulate the hinge points of the tractor's towing and trailer device and the suspension bracket, and with the elasticity of the connecting rod, the suspension bracket can be adjusted according to the size of the tractor's rear towing and trailer device to ensure that the suspension bracket as a whole is in a vertical state relative to the ground, so that the drill installed on the suspension bracket is also in a vertical state, and then the bottom of the drill rig is supported by at least two supports, so that the drill rig can be stably kept vertical on the ground, and the precision calibration process of the verticality and depth of the hole is realized in space, and then the power output device of the tractor is relied on to drive the drill rig to perform the hole-making operation. In this way, the agricultural tractor can be converted into a hole-drawing machine at the construction site, and the rental cost can be reduced without affecting the work efficiency, thereby reducing the machinery cost of the project and reducing the engineering cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the rear hanging hole digging device of the embodiment of the present application when connected to a tractor for use;

[0027] Figure 2 for Figure 1 Schematic diagram of the middle suspension bracket;

[0028] Figure 3 for Figure 1 Schematic diagram of connecting rods;

[0029] Figure 4 for Figure 1 One of the schematic diagrams of the drilling rig;

[0030] Figure 5 for Figure 1 Schematic diagram of the drilling rig (part 2);

[0031] Figure 6 for Figure 1 Schematic diagram of the middle support;

[0032] Figure 7 for Figure 1 Schematic diagram of the combined structure of the middle support and the drilling rig.

[0033] Icons: 10-suspension bracket; 11-hinge point; 20-connecting rod; 21-ball joint; 30-drilling rig; 31-main frame; 32-slide; 33-generator; 34-electric motor; 35-drill rod; 36-hydraulic shaft; 37-transmission machine; 38-I-beam base; 39-slide; 40-support; 50-tractor. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] Combine the following Figures 1 to 7 , some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0041] The embodiment of the present application discloses a rear suspension hole-digging device, which includes a suspension bracket 10, a connecting rod 20, a drilling machine 30 and a support 40;

[0042] The suspension bracket 10 has at least three hinge points 11;

[0043] One end of the connecting rod 20 is hinged to the hinge point 11, and the other end is hinged to the traction and trailer device of the tractor 50, wherein the connecting rod 20 can be extended or shortened;

[0044] The drilling rig 30 is fixed to the suspension bracket 10, wherein the power of the drilling rig 30 is provided by the power output device of the tractor 50;

[0045] The heights of the at least two supports 40 are adjustable, and the at least two supports 40 are used to support the bottom of the drilling rig 30 together.

[0046] In this way, the two ends of the connecting rod 20 are respectively articulated to the traction and trailer device of the tractor 50 and the hinge point 11 of the suspension bracket 10, and with the elasticity of the connecting rod 20, the suspension bracket 10 can be adapted and adjusted according to the size of the rear traction and trailer device of the tractor 50 to ensure that the suspension bracket 10 is vertical relative to the ground as a whole, so that the drill installed on the suspension bracket 10 is also in a vertical state, and then at least two supports 40 are used to support the bottom of the drilling rig 30, so that the drilling rig 30 can be stably kept vertical on the ground, and the verticality, depth and other precision of the hole can be calibrated in space, and then the power output device of the tractor 50 is relied on to drive the drilling rig 30 to operate for the hole-making operation. In this way, the agricultural tractor 50 can be converted into a hole-drawing machine at the construction site, and the rental cost can be reduced without affecting the work efficiency, thereby reducing the machinery cost of the project and reducing the engineering cost.

[0047] Usually, the traction and towing device of the tractor 50 includes two major structures: a swing-type towing rod and a towing frame. The swing-type towing rod can be connected to the farm implement through the towing pin at its rear end to guide the farm implement to complete lateral swing and realize related operations. When using the tractor 50 to lead the farm implement to work, it is necessary to complete the positioning of the towing hole. For example, two positioning pins responsible for positioning can be inserted into the towing hole to complete effective fixation. In addition, for the towing rod, the towing rod can be adjusted to ensure that the towing rod can complete efficient control of the towing point and achieve an effective matching effect. The towing frame of the tractor 50 can effectively complete the trailer operation for various types of tractors 50, but it should be noted that the towing frame cannot be crossed. The traction device is installed at the same time.

[0048] In this embodiment, in order to adapt to the towing and trailering device, the number of connecting rods 20 is three. Two connecting rods 20 are connected to the positioning pins at the rear ends of the two towing rods as lower pull rods to achieve hinged connection. Another connecting rod 20 is hinged to the towing frame as an upper pull rod. In this way, the suspension bracket 10 is suspended by a point selection suspension method.

[0049] In addition, when the tractor 50 is in operation, the power of the engine can be transmitted through the power output device to ensure that the useful work of the engine is transmitted to the working device. In this way, the drive of the drilling rig 30 only depends on the tractor 50, and no additional energy source is required.

[0050] The suspension bracket 10 is welded with No. 18 channel steel and is in the shape of an equilateral triangle as a whole. It is also connected with 49.5mm high-strength bolts. The high-strength bolt friction type connection does not cause relative slippage, has good rigidity and integrity, reliable force transmission, and fatigue resistance. It is particularly suitable for steel structure connections that bear dynamic loads.

[0051] The three hinge points 11 are respectively located near the vertex of the equilateral triangle. The hinge fixed end is made of 20mm thick cast iron.

[0052] Both ends of the connecting rod 20 are provided with ball joints 21 for connection, and the pull rod can be adjusted according to the size of the rear suspension equipment of the tractor 50 to facilitate the construction operation of the drill rod 35. When adjusting the pull rod, the thread lengths at both ends should be equal and cannot exceed the notch;

[0053] The height of the drilling rig 30 is processed according to the hole depth of the construction site. The drilling rig 30 includes a main frame 31, a slide 32, a generator 33, a motor 34 and a drill rod 35;

[0054] The main frame 31 is fixed to the suspension bracket 10, and the support 40 is supported at the bottom of the main frame 31; the adjacent connecting sections of the main frame 31 can be connected by inner anchoring, which is convenient for disassembly and does not affect the track of the slideway 39. There is a slideway 39 on the main frame 31. The slideway 39 of the vertical frame construction adopts channel steel of not less than No. 18 (national standard), and the segments are connected by bolts. The slideway 32 can be slidably set on the slideway 39.

[0055] The generator 33 is fixed to the main frame 31 and is used to connect with the power output device to supply power to the motor 34, so that the power of the tractor 50 is provided to the motor 34 to realize the rotation of the drill rod 35; and if there is a phenomenon that the original tractor 50 itself has insufficient and unstable power output. This technology can be equipped with a special generator 33 for power output according to the pile length and geological conditions of the hole to be drilled, so as to ensure the power output and efficiency of the hole drilling. Among them, the generator 33 adopts a 30kw general generator 33, which is connected by a support 40 bolts and placed on the side of the horizontal 20 I-beam.

[0056] The slide 32 can be raised and lowered on the main frame 31 to drive the motor 34 and the drill rod 35 to move upward.

[0057] The motor 34 is arranged on the carriage 32, and the drill rod 35 is in driving connection with the motor 34. The motor 34 adopts 18kw, and is welded into a triangular carriage 32 with a 12mm steel plate, and is fixed on the carriage 32.

[0058] The drilling rig 30 also includes a hydraulic shaft 36 connected between the top of the main frame 31 and the slide 32. The hydraulic shaft 36 uses a No. 75 hydraulic shaft 36, which is used to connect to the hydraulic system of the tractor 50. In this way, the hydraulic shaft 36 can be driven by the hydraulic system of the tractor 50 to realize the lifting function of the slide 32.

[0059] The drilling rig 30 also includes a transmission machine 37 disposed on the slide 32. The motor 34 is connected to the drill rod 35 through the transmission machine 37 to amplify the torque of the motor 34 and transmit it to the drill rod 35, thereby improving the efficiency of the drill rod 35 in cutting soil to form holes.

[0060] The bottom of the main frame 31 is formed by a No. 20 I-beam base 38 , and the generator 33 is fixed on the I-beam base 38 .

[0061] The support 40 adopts a universal adjustable support hinge support 40, which is placed on the bottom of the main frame 31. The universal adjustable support hinge support 40 has strong load-bearing capacity, balance, shockproof ability and lifting and lowering adjustment functions. The product base and bottom pad are configured according to the standard, which can make the assembly more solid and avoid strong impact on the components and separation. The screw of the screw-type adjustable foot cup will increase or decrease accordingly as the screw is screwed in or out, so as to achieve the purpose of adjusting the height and horizontal state of the object placed above it. Metal materials are used on site. The load-bearing crossbeam of the base is made and installed with 20 I-beams (national standard); it is leveled by the universal adjustable support hinge support 40 (steel plates, square wood, etc. can be used to ensure the overall stability of the support 40). Use a level ruler to check and verify vertically and horizontally. The adjustable rod can be finally fixed after stability.

[0062] This application establishes a new three-dimensional mechanical model of spatial forces based on the geometric shape of three-point suspension, rod connection and universal hinge support 40. In order to reduce the difference between the suspension geometry model and the actual structure and improve the hole-making accuracy (verticality, depth). The calibration process is realized through the comprehensive calibration structure system of three-point suspension, triangular rod adjustment support and universal adjustment hinge support 40. The three-point suspension device installed on the small agricultural tractor 50 bears steady-state load, and the load force, the angle of the lower traction rod and the three components of the three-point suspension device (three axle pins sensing force) are all well utilized. The overall structural rods are combined with tension and compression, and the overall stability of the structure is high, which ensures the high quality of hole-making of the mechanical equipment.

[0063] The installation process of the rear suspension hole-digging device of this application is mainly as follows: construction preparation → installation of three-point suspension device → production and installation of triangular adjustable rods → production of slideway 39 frame and bracket → fixing of universal adjustment hinge support 40 → installation of generator 33 → installation of hydraulic shaft 36 → installation of motor 34 → installation of drill rod 35 → connection with tractor 50 power device → connection with tractor 50 hydraulic device → circuit connection → installation of water pipeline → start-up and debugging work → hole-digging and pouring. Among them, in the construction preparation stage, the reasonable matching of the rear suspension equipment of wheeled tractor 50 is determined by factors such as the front axle counterweight load, the carrying capacity of the rear tire and the maximum lifting force of the hydraulic suspension system, and the matching method should comply with the relevant provisions of GB / T10911-2003. The maximum mass matching curve of tractor 50 and rear suspension equipment will be provided in the instruction manual of tractor 50.

[0064] It is also important to note that the following aspects need to be paid attention to during the construction process:

[0065] 1. Choose a 50-ton agricultural tractor according to the length of the pile to be bored and the geological conditions;

[0066] 2. The center of gravity of the parts fixed on the three-point suspension bracket 10 must be determined;

[0067] 3. The universal adjustable hinge support 40 must be fixed firmly and steadily. The base and the bottom pad should be configured uniformly to make the assembly more secure and avoid strong impact on the components and separation.

[0068] 4. After stabilization, the traction connecting rod 20 is fixed after the main frame 31 is level;

[0069] 5. During drilling, the center of gravity of the drill rod 35 and the main frame 31 should be parallel to ensure the quality of the hole.

[0070] 6. When selecting the hole position, the distance between the center of the pin hole of the lower tie rod and the ground must meet the requirements of the maximum operating depth of the agricultural machinery. Install the universal joint on the tractor 50 side on the power output shaft and lock it with a fixing pin;

[0071] 7. When installing the whole, the relative positions of (spindle, centroidal axis, centroidal spindle). The thread lengths at both ends of the tie rod should be equal and should not exceed the notch to avoid quality accidents during operation. When the pin head of the tie rod is placed in a vertical position, the direction of the pin should be toward the rear of the machine body. The universal adjustment hinge support 40 should also be adjusted according to the force direction of the connecting rod 20;

[0072] 8. Strict training shall be provided during operation and operation and maintenance shall be performed in accordance with relevant requirements;

[0073] 9. Welding processing should be carried out by professional manufacturers according to the formulated processing drawings;

[0074] Compared with the prior art, the technical solution of this application has the following advantages:

[0075] (1) The tractor 50 can be installed and adjusted according to the site conditions, and the three-point suspension device can be adjusted accordingly on site, so that the drilling rig 30 can always maintain a horizontal working state and the hole quality is high;

[0076] (2) This technology can be used not only in photovoltaic power generation and rural grid transformation projects, but also in tree planting, soft foundation treatment, foundation pit excavation support and protection projects for highways. All 122,000 bored piles implemented in this project were qualified.

[0077] (3) Easy installation and disassembly (1.5m standard segment on-site processing), convenient maintenance, low maintenance cost, simple operation, fast construction speed, low noise, no pollution, etc. The agricultural tractor 50 has strong on-site adaptability and convenient operation.

[0078] (4) For Gobi, desert and wasteland, the local farmers' tractors were converted into drilling machines to reduce transportation costs. This not only increased the utilization rate of machinery and the income of local farmers, but also contributed to the economic development of the area; it also saved the construction unit's machinery transportation fees, maintenance fees, etc., reduced project costs, and played a role in reducing costs and increasing efficiency.

[0079] (5) Mobility, adaptability, efficiency and low carbon performance have all been greatly improved.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A rear suspension hole digging device, characterized in that: include: A suspension bracket (10) having at least three hinge points (11); A connecting rod (20), one end of which is hinged to the hinge point (11), and the other end of which is hinged to the traction and trailer device of the tractor (50), wherein the connecting rod (20) can be extended or shortened; a drilling rig (30) fixed to the suspension bracket (10), wherein the power of the drilling rig (30) is provided by a power output device of the tractor (50); At least two supports (40) are height-adjustable and are used to support the bottom of the drilling rig (30).

2. The rear suspension hole-digging device according to claim 1, characterized in that: The suspension bracket (10) is welded from channel steel and is in the shape of an equilateral triangle as a whole.

3. The rear suspension hole-digging device according to claim 2, characterized in that: The three hinge points (11) are respectively located near the vertex positions of the equilateral triangle.

4. The rear suspension hole-forming device according to claim 1, characterized in that: Both ends of the connecting rod (20) are provided with ball joints (21) for connection.

5. The rear suspension hole-forming device according to claim 1, characterized in that: The drilling rig (30) comprises a main frame (31), a sliding frame (32), a generator (33), an electric motor (34) and a drill rod (35); The main frame (31) is fixed to the suspension bracket (10), and the support (40) is supported on the bottom of the main frame (31); A generator (33) is fixed to the main frame (31) and is used to be connected to the power output device to supply power to the electric motor (34); The slide frame (32) can be lifted and lowered on the main frame (31); The motor (34) is arranged on the slide (32), and the drill rod (35) is drivingly connected to the motor (34).

6. The rear suspension hole-digging device according to claim 5, characterized in that: The main frame (31) is provided with a slideway (39), and the slide frame (32) can be slidably arranged on the slideway (39).

7. The rear suspension hole-digging device according to claim 5 or 6, characterized in that: The drilling rig (30) further comprises a hydraulic shaft (36) connected between the top of the main frame (31) and the slide frame (32), wherein the hydraulic shaft (36) is used to be connected to the hydraulic system of the tractor (50).

8. The rear suspension hole-forming device according to claim 5, characterized in that: The drilling machine (30) further comprises a transmission machine (37) arranged on the slide (32), and the motor (34) is connected to the drilling rod (35) through the transmission machine (37).

9. The rear suspension hole-forming device according to claim 5, characterized in that: The bottom of the main frame (31) is formed by an I-beam base (38), and the generator (33) is fixed on the I-beam base (38).

10. The rear suspension hole-forming device according to claim 1, characterized in that: The support (40) is a universally adjustable support hinge support (40).

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