Mobile drilling trolley

Abstract

The present invention discloses a mobile drilling trolley, comprising a rear bracket, a front bracket movably connected to the side of the rear bracket, a movable drilling rig pointing to the side of the ditch is horizontally fixed on the front bracket, a water tank and an electric device are fixed on the rear bracket, the water tank and the electric device are respectively connected to the movable drilling rig via pipelines and wires, and a travel wheel is arranged at the bottom of the rear bracket. The trolley structure of the present invention has the advantages of convenient drilling operation, high drilling efficiency and high drilling accuracy, and can reduce labor input and eliminate safety hazards, greatly reduce construction costs and shorten construction period. It can also control pipeline drilling and accurately locate elevation according to the designed cross slope of 4% to ensure smooth drainage.

Description

Technical Field

[0001] The invention relates to a mobile drilling trolley and belongs to the technical field of road construction drilling equipment. Background Art

[0002] Water is the main natural factor that harms highways and is also one of the main reasons for early damage to asphalt concrete pavements. During road construction, in order to prevent rainwater from seeping from the road surface from wetting the road base and soil subgrade and causing a reduction in the strength of the road base and soil subgrade, a gravel seal layer is laid simultaneously when hot asphalt is laid on the top of the base, and a gravel blind ditch is set at the edge of the road surface. The water that seeps into the road structure layer flows into the gravel blind ditch at the edge due to the road arch slope. A 4cm horizontal hard plastic drainage pipe is set at every 20m in the gravel blind ditch, and the seepage water under the surface layer is discharged from the roadbed through the horizontal drainage pipe.

[0003] Due to the difficulty in constructing the gravel blind ditch on the edge of the road surface and the inconsistency in the design dimensions of the excavation section and the filling section, the civil engineering unit did not reserve a Ф4cm horizontal hard plastic drainage pipe hole when implementing the side ditch. In addition, due to the control of the side ditch elevation, it was not convenient for the civil engineering unit to reserve the hole.

[0004] At present, the Ø4cm drainage pipe hole is generally constructed by driving expansion bolts on the ditch to fix the drill. The construction efficiency of this process is low, mainly because driving expansion bolts is labor-intensive and it is not easy to remove the expansion bolts after drilling. It affects the rolling of the roller during the base construction, is not easy to compact the edges, and may damage the roller. Summary of the invention

[0005] The purpose of the present invention is to provide a mobile drilling trolley. Compared with the previous method of drilling holes on the side ditch body without drilling holes and using expansion bolts, the trolley greatly improves efficiency, reduces labor input and eliminates safety hazards. It can also control pipeline drilling and accurately locate elevation according to the designed cross slope of 4% to ensure smooth drainage.

[0006] The technical solution of the present invention is as follows: a mobile drilling trolley comprises a rear bracket, a front bracket is movably connected to the side of the rear bracket, a movable drilling rig pointing to the side of the ditch is horizontally fixed on the front bracket, a water tank and an electric device are fixed on the rear bracket, the water tank and the electric device are connected to the movable drilling rig via pipelines and wires respectively, and walking wheels are arranged at the bottom of the rear bracket.

[0007] In the aforementioned mobile drilling trolley, the rear bracket and the front bracket are both composed of longitudinal, transverse and vertical angle steels fixedly connected to each other, wherein the back frame of the front bracket is arranged close to the front frame of the rear bracket, and the left and right sides of the back frame are respectively provided with multiple vertical slide grooves. The locking bolt passes through the slide groove and extends into the threaded hole on the front frame, and a locking nut is threadedly sleeved on the locking bolt.

[0008] In the aforementioned mobile drilling trolley, a wing plate is provided on each of the outer walls in the middle of the left and right sides of the back frame, and a vertical slide groove is also provided on the wing plate. A threaded rod is inserted into the vertical slide groove, and the end of the threaded rod located behind the wing plate is fixedly connected with an L-shaped fixing block, and a locking nut is also threadedly inserted into the rod member located in front of the wing plate.

[0009] In the aforementioned mobile drilling trolley, a threaded barrel is provided on the left and right sides of the front end side wall of the front bracket, a threaded fixing rod is screwed into the threaded barrel, and the bottom head end of the threaded fixing rod is a conical structure.

[0010] In the aforementioned mobile drilling trolley, the movable drilling rig includes a rack slide rail, the two ends of the rack slide rail are respectively fixed to the front and rear ends of the front bracket, a manual gear moving block is sleeved on the rack slide rail, and the drilling rig is fixedly connected to the side of the manual gear moving block.

[0011] In the aforementioned mobile drilling trolley, the electric power device is a generator.

[0012] In the aforementioned mobile drilling trolley, a rotating handle is provided at the end of the locking bolt.

[0013] In the aforementioned mobile drilling trolley, a rotating handle is provided at the top end of the threaded fixing rod.

[0014] In the aforementioned mobile drilling trolley, a gasket is supported below the bottom where the rack slide rail is connected to the front end of the front bracket.

[0015] Beneficial effects of the invention: Compared with the prior art, the invention has the following advantages:

[0016] 1. Fix the movable drilling rig on the front bracket. The drill bit direction of the movable drilling rig is the drilling direction. The drilling rig moves linearly along the rack slide rail to drill holes in the side ditch.

[0017] 2. In the early stage of drilling, the elevation of the road ditch is uncertain due to the uneven road surface. When the trolley is fixed on the road surface to drill holes, the height of the drill rig needs to be adjusted continuously for holes in different positions, which is time-consuming, labor-intensive, and inaccurate. Therefore, a front bracket and a rear bracket are set. The front bracket is used to carry the movable drill rig, and its bottom surface is at a certain height from the road surface, while the rear bracket is supported on the top surface of the ditch. Because the ditch needs to be constructed earlier than the road surface, its elevation remains basically unchanged. It only needs to adjust the fixed position of the front and rear brackets once to ensure that each hole drilled later is at the same height from the top surface of the ditch;

[0018] 3. A water tank and an electric device are placed on the rear bracket to balance the gravity of the mobile drilling rig and provide the mobile drilling rig with cooling water and electricity required for drilling;

[0019] 4. The front bracket and the rear bracket can be fixed by tightening the locking nut on the locking bolt. The fixing position of the front bracket and the rear bracket can be adjusted by setting a vertical slide groove on the back frame of the front bracket, thereby adjusting the drilling height;

[0020] 5. By setting an L-shaped fixing block, insert the L-shaped fixing block into the gap between the blocks on the top surface of the ditch before drilling, and tighten the locking nut on the threaded rod, the entire trolley and the ditch can be fixed together to avoid vibration during the drilling process causing the trolley to shake, which ultimately affects the drilling quality;

[0021] 6. A threaded fixing rod is provided on the front end of the front bracket. During the drilling process, the bottom of the threaded fixing rod is nailed into the ground to improve the stability of the trolley during the drilling process and ensure the drilling quality;

[0022] 7. By supporting a gasket under the front end of the rack slide rail, the rack slide rail can be set at an angle through the setting of the gasket, so that the pipeline drilling can be controlled according to the designed cross slope of 4% during the drilling process of the drilling rig to ensure smooth drainage.

[0023] In summary, the trolley structure of the present invention has the advantages of convenient drilling operation, high drilling efficiency and high drilling accuracy, and can reduce labor input, greatly reduce construction costs and shorten construction period. It can also control pipeline drilling and accurately locate elevation according to the designed cross slope of 4% to ensure smooth drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is a structural schematic diagram of the present invention;

[0025] Attached Figure 2 For attachment Figure 1 A schematic diagram of a top view structure;

[0026] Attached Figure 3 For attachment Figure 1 Schematic diagram of the side structure.

[0027] Figure markings: 1-rear bracket, 2-front bracket, 3-side ditch, 4-movable drilling rig, 5-water tank, 6-electric device, 7-pipeline, 8-travel wheel, 9-back frame, 10-front frame, 11-vertical slide, 12-locking bolt, 13-locking nut, 14-wing plate, 15-threaded rod, 16-L-shaped fixing block, 17-threaded cylinder, 18-threaded fixing rod, 19-rack slide rail, 20-manual gear moving block, 21-drilling rig, 22-turning handle, 23-gasket. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0029] Embodiment of the present invention: A mobile drilling trolley, as shown in the attached Figure 1-3 As shown, it includes a rear bracket 1, a front bracket 2 is movably connected to the side of the rear bracket 1, a movable drilling rig 4 pointing to the side of the ditch 3 is horizontally fixed on the front bracket 2, a water tank 5 and an electric device 6 are fixed on the rear bracket 1, the water tank 5 and the electric device 6 are connected to the movable drilling rig 4 via a pipeline 7 and a wire respectively, and a walking wheel 8 is arranged at the bottom of the rear bracket 1.

[0030] During use, the rear bracket 1 is placed on the top surface of the side ditch 3. During road construction, the side ditch 3 is constructed before the road surface, so the surface of the side ditch 3 is relatively flat. During the drilling process of the side ditch 3, the distance between each hole and the top surface of the side ditch 3 is the same. Since the surface of the side ditch 3 is relatively flat, when the rear bracket 1 is fixed to the front bracket 2, the height of the movable drilling rig 4 fixed on the rear bracket 1 can remain unchanged.

[0031] Before drilling, first adjust the fixed connection position of the rear bracket 1 and the front bracket 2. After the position is fixed, the distance between the movable drilling rig 4 and the top surface of the side ditch 3 can be kept fixed, thereby ensuring that the height of each hole is the same.

[0032] The drill head of the movable drilling rig 4 points to the side of the ditch 3, i.e., the drilling direction. After the trolley is driven by the walking wheels 8 to move to the position where the hole needs to be drilled, the movable drilling rig 4 is started to drill the ditch 3. During the drilling process, the required cooling water is provided to the movable drilling rig 4 through the pipeline 7. The end of the pipeline 7 extending into the water tank 5 is connected to a water pump. The water in the water tank 5 is pumped out by the water pump to supply the movable drilling rig 4. The motor device 6 provides the movable drilling rig 4 and the water pump with the power required for normal operation.

[0033] The rear bracket 1 and the front bracket 2 are both composed of longitudinal, transverse and vertical angle steels fixedly connected to each other, wherein the back frame 9 of the front bracket 2 is arranged next to the front frame 10 of the rear bracket 1, and two vertical slide grooves 11 are respectively provided on the left and right sides of the back frame 9. The locking bolt 12 passes through the slide groove 11 and extends into the threaded hole on the front frame 10. A locking nut 13 is threadedly sleeved on the locking bolt 12 in front of the back frame 9.

[0034] This setting is mainly to facilitate the adjustment of the connection and fixing position of the rear bracket 1 and the front bracket 2. After the position of the rear bracket 1 is fixed, the position of the movable drilling rig 4 is also fixed, that is, the drilling position of the movable drilling rig 4 is adjusted by adjusting the fixing position of the rear bracket 1. The adjustment method is to move the rear bracket 11 up and down along the vertical slide 11 to the required height, tighten the locking nut 13 on the locking bolt 12, and multiple locking nuts 13 together squeeze the rear bracket 1 and the front bracket 2 inward, so that the rear bracket 1 and the front bracket 2 can be fixed together.

[0035] A wing plate 14 is provided on each of the outer side walls in the middle of the left and right sides of the back frame 9, and a vertical slide groove 11 is also provided on the wing plate 14. A threaded rod 15 is inserted into the vertical slide groove 11. The end of the threaded rod 15 located behind the wing plate 14 is fixedly connected with an L-shaped fixing block 16, and a locking nut 13 is also threadedly inserted into the rod of the threaded rod 15 located in front of the wing plate 14.

[0036] After the trolley moves to the drilling position, loosen the locking nut 13 on the threaded rod 15, insert the downwardly bent portion of the L-shaped fixing block 16 into the gap between two adjacent blocks on the top surface of the side ditch 3, and then tighten the locking nut 13 to tightly fix the back frame 9 and the side ditch 3 together, thereby ensuring the structural stability of the entire trolley during the drilling process. Since the side ditch 3 is generally made of blocks piled up with concrete, there will be gaps between the blocks, based on this, the L-shaped fixing block 16 is set.

[0037] The front end side wall of the front bracket 2 is provided with a threaded barrel 17 on the left and right sides, and a threaded fixing rod 18 is screwed into the threaded barrel 17, and the bottom head end of the threaded fixing rod 18 is a conical structure. During the drilling process, the bottom conical head end of the threaded fixing rod 18 is screwed into the ground, thereby further improving the stability of the entire trolley structure. After the drilling is completed, the threaded fixing rod 18 is rotated upward to separate it from the ground. In the entire trolley structure, the bottom of the front bracket 2 always maintains a certain height from the road surface to prevent the bottom of the front bracket 2 from contacting the road surface.

[0038] The movable drilling rig 4 is an existing conventional drilling rig, which includes a rack slide 19, the two ends of the rack slide 19 are respectively fixed to the front and rear ends of the front bracket 2, and a manual gear moving block 20 is sleeved on the rack slide 19, and a drilling rig 21 is fixedly connected to the side of the manual gear moving block 20. Manually rotating the rotating rod of the manual gear moving block 20 drives the internal rotating gear to rotate, and the rotating gear is engaged with the rack on the rack slide 19, so that the manual gear moving block 20 can be driven to move linearly along the rack slide 19, and the manual gear moving block 20 drives the drilling rig 21 connected thereto to move linearly to achieve drilling.

[0039] The power device 6 is a generator. Road construction is mainly carried out in places where infrastructure is not sound. The use of a generator can better provide the required electricity.

[0040] A rotating handle 22 is provided at the end of the locking bolt 12. When the locking bolt 12 locks the back frame 9 and the front frame 10, the locking bolt 12 can be driven to be screwed inward by rotating the rotating handle 22, so that the back frame 9 and the front frame 10 are pressed and fixed by the locking nut 13.

[0041] A rotating handle 22 is disposed at the top of the threaded fixing rod 18 to facilitate the rotation of the threaded fixing rod 18 .

[0042] The bottom of the rack rail 19 connected to the front end of the front bracket 2 is supported by a gasket 23. During the drilling process, the hole needs to be drilled according to the 4% transverse slope requirement. By setting the gasket 23, the front end of the rack rail 19 can be higher than the rear end, so that the final drilled hole is an inclined hole, which meets the 4% transverse slope requirement and ensures smooth drainage.

Claims

1. A mobile drilling trolley, characterized in that: The invention comprises a rear bracket (1), the side of the rear bracket (1) is movably connected to the front bracket (2), a movable drilling rig (4) pointing to the side of the side ditch (3) is horizontally fixed on the front bracket (2), a water tank (5) and an electric device (6) are fixed on the rear bracket (1), the water tank (5) and the electric device (6) are connected to the movable drilling rig (4) via a pipeline (7) and a wire respectively, and a travel wheel (8) is arranged at the bottom of the rear bracket (1); The rear bracket (1) and the front bracket (2) are both formed by mutually fixedly connecting longitudinally, transversely and vertically arranged angle steels, wherein the back frame (9) of the front bracket (2) is arranged adjacent to the front frame (10) of the rear bracket (1), and a plurality of vertical slide grooves (11) are respectively arranged on the left and right sides of the back frame (9), and the locking bolt (12) passes through the slide groove (11) and extends into the threaded hole on the front frame (10), and the locking bolt (12) is threadedly sleeved with a locking nut (13); A wing plate (14) is provided on each of the outer side walls of the middle part of the left and right sides of the back stand (9), and a vertical slide groove (11) is also provided on the wing plate (14), and a threaded rod (15) is inserted into the vertical slide groove (11). The end of the threaded rod (15) located behind the wing plate (14) is fixedly connected to an L-shaped fixing block (16), and a locking nut (13) is also threadedly sleeved on the rod member of the threaded rod (15) located in front of the wing plate (14); A rotating handle (22) is provided at the end of the locking bolt (12).

2. The mobile drilling trolley according to claim 1, characterized in that: A threaded cylinder (17) is provided on the left and right sides of the front end side wall of the front bracket (2), and a threaded fixing rod (18) is screwed into the threaded cylinder (17), and the bottom end of the threaded fixing rod (18) is a conical structure.

3. The mobile drilling trolley according to claim 1, characterized in that: The movable drilling rig (4) comprises a rack slide rail (19), the two ends of which are respectively fixed to the front and rear ends of the front bracket (2), a manual gear moving block (20) is sleeved on the rack slide rail (19), and the side of the manual gear moving block (20) is fixedly connected to the drilling rig (21).

4. The mobile drilling trolley according to claim 1, characterized in that: The electric power device (6) is a generator.

5. The mobile drilling trolley according to claim 2, characterized in that: A rotating handle (22) is provided at the top end of the threaded fixing rod (18).

6. The mobile drilling trolley according to claim 3, characterized in that: A gasket (23) is provided below the bottom where the rack slide rail (19) is connected to the front end of the front bracket (2).

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