Road core drilling machine

Abstract

A road core drilling machine belongs to the technical field of road drilling and comprises a bottom frame, two supporting plates are arranged on the bottom frame in a bilateral symmetry mode, a cross rod is installed between the two supporting plates, a seat body is arranged below the cross rod through a lifting assembly, a first rotating shaft is rotationally arranged in the middle of the seat body in the vertical direction, and a first gear is fixedly installed on the first rotating shaft. According to the utility model, the synchronous drilling and sampling of multiple groups of drilling cylinders can be realized at one time, the control experiment sampling requirement of sampling multiple groups of core samples can be met at one time, and compared with the traditional mode that only single sampling can be carried out at one time, the operation steps are more simplified, the sampling time is saved, and the sampling efficiency is improved; the same rotating frequency of each group of drilling barrels can be ensured, the sampling stability of the whole device is ensured, the situation that the equipment shakes excessively due to the fact that each group of drilling barrels with successive time difference are started respectively is avoided, and more stable sampling of the equipment can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the road drilling technical field, concretely relates to a road drilling coring machine. BACKGROUND

[0002] In the construction process of highway construction, coring operation plays a vital role. This operation extracts a certain specification of columnar sample, i.e. core sample, from the pavement structure by using professional equipment for subsequent material property and quality analysis. Coring helps to understand the characteristics of pavement materials, including density, strength and stability, thereby ensuring the scientificity of highway design and the effectiveness of construction, and providing a solid guarantee for the safety and durability of highways.

[0003] Related technology (announcement number CN219081486U) discloses a kind of road drilling coring machine, including coring machine main body device;The drilling mechanism is installed at one end of coring machine main body device;Automatic extraction device is slidably installed at one end of coring machine main body device;Drainage control assembly bottom is slidably inserted into automatic extraction device inside;The top of protective assembly is connected with automatic extraction device;The protective assembly in the utility model can prevent the problem of water or stone splashing caused by drill bit rotation, and has good protection effect;When drilling, automatic extraction device can automatically extract dust-settling water, and does not need to clean dust-settling water in later period, save time and effort.

[0004] In the above-mentioned technology, although road coring operation can be realized, only one columnar core sample can be taken out at a time, and a single columnar core sample cannot fully represent the actual situation of the road. When detecting, multiple core samples are often needed for contrast experiment, and the average value is taken to evaluate the actual situation of the road. The existing equipment takes one core sample at a time, if multiple core samples are needed to meet the requirements of contrast experiment, the coring operation process must be repeated multiple times, the operation steps are relatively cumbersome, and the coring efficiency is reduced. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art that the existing equipment takes one core sample at a time, if multiple core samples are needed to meet the requirements of contrast experiment, the coring operation process must be repeated multiple times, the operation steps are relatively cumbersome, and the coring efficiency is reduced, the utility model provides a road drilling coring machine, which can simultaneously drill and sample multiple drill barrels at a time, and can meet the requirements of contrast experiment sampling of multiple core samples at a time. Compared with the traditional single sampling mode, the operation steps are simplified, the sampling time is saved, and the sampling efficiency is improved. The specific technical scheme is as follows:

[0006] A road drilling core drill comprises a chassis, two support plates are symmetrically arranged on the chassis, a cross bar is installed between the two support plates, a seat is arranged below the cross bar through a lifting assembly, a first rotating shaft is vertically arranged in the middle of the seat, a first gear is fixedly installed on the first rotating shaft, a plurality of groups of second rotating shafts are circumferentially arranged in the seat, each second rotating shaft is circumferentially equidistantly arranged with the first rotating shaft as the center, a second gear is installed on each second rotating shaft, each second gear is meshingly connected with the side wall of the first gear, and a drill cylinder extends downward from the bottom end of each second rotating shaft out of the outer wall of the seat.

[0007] In the technical scheme, the top end of the first rotating shaft extends upward out of the seat, and a driving assembly for driving the first rotating shaft to rotate is arranged on the seat.

[0008] The driving assembly comprises a first synchronous wheel fixedly installed on the top end of the first rotating shaft, a motor bracket installed on the upper surface of the seat, a motor installed on the motor bracket, a second synchronous wheel installed on the output end of the motor through a shaft coupling, and a synchronous belt sleeved on the first synchronous wheel and the second synchronous wheel.

[0009] In the technical scheme, the lifting assembly comprises a gas cylinder installed on the cross bar, a lifting frame connected to the output end of the gas cylinder, and a connecting seat installed on the bottom end of the lifting frame.

[0010] In the technical scheme, a sliding assembly is arranged between the connecting seat and the support plate.

[0011] The sliding assembly comprises a sliding groove fixedly installed on the side wall of the connecting seat, a sliding block formed in the side wall of the support plate in the vertical direction, and the sliding groove is slidably embedded in the inner cavity of the sliding block.

[0012] In the technical scheme, a limiting unit is arranged on the side wall of the drill cylinder.

[0013] The limiting unit comprises a support column installed vertically on the upper surface of the chassis, one end of an extension arm installed on the support column, an installation seat installed on the other end of the extension arm, and a plurality of limiting assemblies arranged on the side wall of the installation seat.

[0014] In the technical scheme, the limiting assembly comprises a connecting rod installed on the side wall of the installation seat, an installation plate vertically installed on the side wall of the connecting rod, a limiting half-ring installed on the upper end and the lower end of the installation plate, and a plurality of limiting rollers rotatably arranged in the limiting half-ring.

[0015] In the technical scheme, the center of the limiting half-ring is concentrically arranged with the center of the drill cylinder.

[0016] In the technical scheme, the number of the limiting assemblies is same as that of the and the positions correspond.

[0017] Compared with the prior art, the road drilling coring machine has the beneficial effects that:

[0018] I. For the single coring of one core sample of the existing equipment, if multiple core samples are required to meet the requirements of the control experiment, the coring operation process must be repeated multiple times, the operation steps are more complicated, and the coring efficiency is reduced. The utility model can realize the drilling and sampling of multiple groups of drill barrels at a time, and can meet the sampling requirements of multiple core samples for control experiments at a time. Compared with the traditional single sampling mode, the operation steps are more simplified, the sampling time is saved, and the sampling efficiency is improved.

[0019] II. The first shaft, the first gear, the second shaft and the second gear can realize the synchronous rotation of multiple groups of drill barrels, that is, the same driving force can realize the synchronous rotation sampling of multiple groups of drill barrels, the frequency of rotation of each group of drill barrels can be ensured to be the same, the stability of the whole device sampling can be ensured, the situation that the equipment is excessively shaken due to the start of each group of drill barrels with time difference can be avoided, and the equipment can perform more stable sampling.

[0020] III. In the utility model, the directions of rotation of multiple groups of second gears are the same, so that the directions of rotation sampling of each group of drill barrels are the same, a stable and reliable rotation sampling operation mechanism is constructed for the equipment, the vibration, jamming and other unstable factors caused by inconsistent directions can be avoided when the equipment performs the sampling task, so that the equipment can continuously, stably and efficiently perform the rotation sampling operation;

[0021] IV. Compared with the existing sampling equipment, the drill barrel lacks a limiting function and is easy to shake during sampling. The shaking not only interferes with the normal sampling, but also causes the taken sample to deviate, be damaged and other adverse consequences, seriously affecting the accuracy and reliability of the sampling. The utility model can accurately and effectively constrain the movement track of the drill barrel component, so that it always strictly follows the vertical direction during the whole drilling and coring process, reduces the error factors caused by shaking, effectively guarantees the precision and quality of the sampling, and makes the obtained sample truly and accurately reflect the related characteristics and parameters of the detected object.

[0022] In summary, the utility model discloses a plurality of groups of drill cylinders can be realized synchronously drilling and sampling once, and satisfy the contrast experiment sampling demand of sampling multiple groups of core samples once, compared with the traditional single sampling mode, the operation steps are more simplified, and the sampling time is saved, and the sampling efficiency is improved, in addition, the synchronous rotation sampling of multiple groups of drill cylinders can guarantee that the frequency of the rotation of each group of drill cylinders is same, guarantees the stability of the whole device sampling, avoids the situation that the excessive shaking of equipment is caused by the start of each group of drill cylinders in the time difference, can guarantee more stable sampling of equipment, simultaneously, can accurately and effectively restrict the movement track of the drill cylinder part, makes it always follow the vertical direction and work in the whole drilling and coring process, and reduces the error factor caused by shaking. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic diagram of the utility model seat body;

[0024] Figure 2 It is the structure schematic diagram of the utility model drill cylinder;

[0025] Figure 3 It is the section structure schematic diagram of the utility model seat body;

[0026] Figure 4 It is the overhead structure schematic diagram of the utility model second gear;

[0027] Figure 5 It is the structure schematic diagram of the utility model limiting half ring;

[0028] Figures 1 to 5 In the middle, 1, bottom frame, 2, support plate, 3, cross bar, 4, cylinder, 5, lifting frame, 6, connecting seat, 7, seat body, 8, first rotation axis, 9, first gear, 10, second rotation axis, 11, second gear, 12, drill cylinder, 13, first synchronous wheel, 14, motor frame, 15, motor, 16, second synchronous wheel, 17, synchronous belt, 18, sliding slot, 19, sliding block, 20, support column, 21, extension arm, 22, mounting seat, 23, connecting rod, 24, mounting plate, 25, limiting half ring, 26, limiting idler wheel. DETAILED DESCRIPTION

[0029] The specific embodiment case and attached Figures 1 to 5 The utility model will be further described, but the utility model is not limited to these embodiments.

[0030] Reference Figures 1 to 5As shown, a road drilling core machine comprises a chassis 1, two support plates 2 are symmetrically arranged on the chassis 1, a cross bar 3 is installed between the two support plates 2, a seat body 7 is arranged below the cross bar 3 through a lifting assembly, a first rotating shaft 8 is rotatably arranged in the middle of the seat body 7 in the vertical direction through a bearing, a first gear 9 is fixedly installed on the first rotating shaft 8, a plurality of second rotating shafts 10 are rotatably arranged in the seat body 7 in the circumferential direction through bearings, each second rotating shaft 10 is circumferentially equidistantly arranged with the first rotating shaft 8 as the center, a second gear 11 is installed on each second rotating shaft 10, and each second gear 11 is meshingly connected with the side wall of the first gear 9. When the first gear 9 rotates, it can drive the plurality of circumferentially arranged second gears 11 to rotate synchronously, the bottom end of each second rotating shaft 10 extends out of the outer wall of the seat body 7 and is installed with a drill cylinder 12, the plurality of drill cylinders 12 are driven to rotate synchronously through the synchronous rotation of the plurality of second gears 11, and the plurality of second gears 11 rotate in the same direction to ensure that the plurality of drill cylinders 12 rotate in the same direction. In addition, the number of drill cylinders 12 can be flexibly set according to the actual sampling quantity requirement. In this embodiment, three groups of drill cylinders 12 are set as an example for illustration.

[0031] The first rotating shaft 8 drives the first gear 9 to rotate circumferentially. Since the side wall of the first gear 9 is meshingly connected with the plurality of second gears 11, the rotating first gear 9 can drive the plurality of second gears 11 and the plurality of drill cylinders 12 to rotate circumferentially synchronously. The plurality of second gears 11 rotate in the same direction to ensure that each group of drill cylinders 12 rotates in the same direction for sampling, thereby forming a stable and reliable rotating sampling operation mechanism for the equipment, so that the equipment can avoid vibration, jamming and other unstable factors caused by inconsistent directions when performing sampling tasks, thereby ensuring that the equipment can continuously, stably and efficiently carry out rotating sampling operations.

[0032] Mainly refer to Figure 1 As shown, the lifting assembly comprises a gas cylinder 4 installed on the cross bar 3, the output end of the gas cylinder 4 is connected with a lifting frame 5, the bottom end of the lifting frame 5 is respectively installed with a connecting seat 6 on the left and right sides, and the two connecting seats 6 are respectively connected with the seat body 7. The opened gas cylinder 4 drives the lifting frame 5, the connecting seat 6, the seat body 7 and the plurality of rotating drill cylinders 12 to move downward synchronously, thereby realizing the synchronous downward rotation of the plurality of drill cylinders 12 for sampling.

[0033] Mainly refer to Figure 2 and Figure 3As shown, the first rotating shaft 8 extends upwardly from the seat body 7, and the seat body 7 is provided with a driving assembly for driving the first rotating shaft 8 to rotate; the driving assembly comprises a first synchronous wheel 13 fixedly installed at the top end of the first rotating shaft 8, and further comprises a motor bracket 14 installed on the upper surface of the seat body 7, a motor 15 installed on the motor bracket 14, a second synchronous wheel 16 installed on the output end of the motor 15 through a shaft coupling, and a synchronous belt 17 sleeved on the first synchronous wheel 13 and the second synchronous wheel 16; the synchronous belt 17 is driven by the second synchronous wheel 16 to rotate circumferentially to drive the first synchronous wheel 13 and the second synchronous wheel 16 to rotate synchronously, so that the first rotating shaft 8 drives the first gear 9 to rotate circumferentially.

[0034] In order to ensure that the lifting movement direction of the connecting seat 6 and the seat body 7 remains vertical, a sliding assembly is arranged between the connecting seat 6 and the support plate 2; the sliding assembly comprises a sliding groove 18 fixedly installed on the side wall of the connecting seat 6, and a sliding block 19 formed in the side wall of the support plate 2 in a vertical direction; when the connecting seat 6 moves, the sliding groove 18 moves along the inner cavity of the sliding block 19.

[0035] Mainly referring to Figures 3 to 5 As shown, the side wall of the drill cylinder 12 is provided with a limiting unit; the limiting unit comprises a support column 20 installed vertically on the upper surface of the base frame 1, one end of an extension arm 21 installed on the support column 20, and a mounting seat 22 installed on the other end of the extension arm 21; a plurality of limiting assemblies are arranged on the side wall of the mounting seat 22; through the limiting assemblies, the drill cylinder 12 can be kept vertical during drilling and sampling, and the movement track of the drill cylinder 12 can be accurately and effectively constrained, so that the drill cylinder 12 always strictly follows the vertical direction during the whole drilling and coring process, the error caused by shaking is reduced, the accuracy and quality of sampling are effectively guaranteed, and the obtained sample can truly and accurately reflect the relevant characteristics and parameters of the detected object.

[0036] Specifically, the limiting assembly comprises a connecting rod 23 installed on the side wall of the mounting seat 22, a mounting plate 24 installed vertically on the side wall of the connecting rod 23, a limiting half ring 25 installed on the upper and lower ends of the mounting plate 24, and a plurality of limiting rollers 26 rotatably arranged in the limiting half ring 25; during the downward sampling of the drill cylinder 12, the drill cylinder 12 always moves in the vertical direction under the guidance of the limiting rollers 26 arranged on the outer wall of the drill cylinder 12, and the rotatably arranged limiting rollers 26 do not interfere with the downward movement of the drill cylinder 12, that is, the drill cylinder 12 can be limited in the vertical direction while ensuring that the drill cylinder 12 always moves vertically.

[0037] In addition, the center of the limiting half ring 25 is coaxial with the center of the drill cylinder 12, so that the multiple sets of limiting rollers 26 on the limiting half ring 25 can uniformly roll and adhere to the side wall of the drill cylinder 12, and the side wall of the drill cylinder 12 is limited in multiple points in the circumferential direction, which more effectively ensures the vertical movement of the drill cylinder 12.

[0038] Specifically, the number of limiting assemblies is the same as the number of drill cylinders 12 and the positions correspond, so that each set of drill cylinders 12 is provided with a corresponding limiting assembly, which can ensure that each drill cylinder 12 can be limited in the sampling direction.

[0039] It is worth noting that the air cylinder 4 used in this application is a commonly used self-locking air cylinder on the market, and the output end can stop at any position and be locked; the motor 15 uses a commonly used self-locking motor on the market, and the output end can be self-locked when it is stopped, and will not rotate under external force, and the motor 15 is a commonly used forward and reverse motor on the market, and the output end can rotate forward or reverse according to the use demand, which can meet the above use demand; The above-mentioned components are not limited in type and are not described in detail.

[0040] The working principle of the road drilling coring machine of the embodiment is as follows:

[0041] The second synchronous wheel 16 is driven to rotate in the circumferential direction by the opened motor 15, so as to drive the first synchronous wheel 13 and the second synchronous wheel 16 to rotate synchronously. At this time, the first shaft 8 drives the first gear 9 to rotate in the circumferential direction. Since the side wall of the first gear 9 is engaged with multiple second gears 11, the rotating first gear 9 can drive multiple second gears 11 and multiple drill cylinders 12 to rotate synchronously in the circumferential direction, and the rotating direction of each drill cylinder 12 is the same. At the same time, the opened air cylinder 4 drives the lifting frame 5, the connecting seat 6, the seat body 7 and multiple rotating drill cylinders 12 to move downward synchronously, so as to realize the downward rotation of multiple drill cylinders 12 for sampling;

[0042] At the same time, in the process of sampling downward of the drill cylinder 12, the drill cylinder 12 can always move in the vertical direction under the guidance of the limiting rollers 26 arranged on the outer wall of the drill cylinder 12, and the rotating limiting rollers 26 will not interfere with the downward movement of the drill cylinder 12, that is, the drill cylinder 12 can be limited in the vertical direction while ensuring that the drill cylinder 12 always moves vertically. Each drill cylinder 12 is provided with two sets of limiting half rings 25 arranged symmetrically upward and downward, which can more accurately and reliably limit the movement direction of the drill cylinder 12 from multiple points compared with a single set of limiting half rings 25.

[0043] The utility model discloses a plurality of groups of drill cylinders 12 can realize drilling sampling synchronously, satisfy the contrast experiment sampling demand of sampling multiple core samples one time, relative to the traditional single only carries out single sampling mode, operation step is more simplified, and more saving sampling time improves sampling efficiency, in addition, the synchronous rotation sampling of multiple groups of drill cylinders 12 can guarantee that the frequency of the rotation of each group of drill cylinders 12 is same, guarantees the stability of the whole device sampling, avoids the situation that the equipment is excessively shaken by the start of each group of drill cylinders 12 respectively existing time difference, can more guarantee that the equipment carries out more stable sampling, simultaneously, can accurately and effectively restrict the movement track of drill cylinder 12 parts, makes it always follow vertical direction operation in the whole drilling coring process, reduces the error factor of the shaking.

[0044] The above only is the preferred embodiment of the utility model and does not use for limiting the utility model, for the skilled person in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A road coring machine, comprising a base frame (1), two support plates (2) being symmetrically arranged on the base frame (1), a cross bar (3) being installed between the two support plates (2), and characterized in that: A base (7) is provided below the crossbar (3) through a lifting assembly, a first rotating shaft (8) is provided in the middle of the base (7) for rotation in the vertical direction, a first gear (9) is fixedly mounted on the first rotating shaft (8), a plurality of second rotating shafts (10) are provided in the base (7) for rotation in the circumferential direction, each of the second rotating shafts (10) is equidistantly arranged around the first rotating shaft (8), a second gear (11) is mounted on each of the second rotating shafts (10), each of the second gears (11) is respectively meshed with the side wall of the first gear (9), and the bottom end of each of the second rotating shafts (10) extends downward out of the outer wall of the base (7) and is mounted with a drill barrel (12).

2. A road coring machine according to claim 1, characterized in that: The top end of the first rotating shaft (8) extends upward from the base body (7), and a driving component for driving the first rotating shaft (8) to rotate is provided on the base body (7); The driving assembly comprises a first synchronous wheel (13) fixedly mounted on the top end of the first rotating shaft (8), and also comprises a motor frame (14) mounted on the upper surface of the base body (7), a motor (15) being mounted on the motor frame (14), a second synchronous wheel (16) being mounted on the output end of the motor (15) via a coupling, and a synchronous belt (17) being sleeved on the second synchronous wheel (16) and the first synchronous wheel (13).

3. A road coring machine according to claim 1, characterized in that: The lifting assembly comprises a cylinder (4) mounted on the crossbar (3); the output end of the cylinder (4) is connected to a lifting frame (5); connecting seats (6) are respectively mounted on the left and right sides of the bottom end of the lifting frame (5); and the two connecting seats (6) are respectively connected to the seat body (7).

4. A road coring machine according to claim 3, characterized in that: A sliding assembly is provided between the connecting seat (6) and the supporting plate (2); The sliding assembly includes a sliding groove (18) fixedly mounted on the side wall of the connecting seat (6); a sliding block (19) is provided on the side wall of the support plate (2) in a vertical direction; and the sliding groove (18) is slidably embedded in the inner cavity of the sliding block (19).

5. The road coring machine according to claim 1, characterized in that: The side wall of the drill tube (12) is provided with a limiting unit; The limiting unit comprises a pillar (20) vertically mounted on the upper surface of the base frame (1), one end of an extension arm (21) is mounted on the pillar (20), a mounting seat (22) is mounted on the other end of the extension arm (21), and a plurality of limiting components are arranged on the side wall of the mounting seat (22).

6. A road coring machine according to claim 5, characterized in that: The limiting assembly comprises a connecting rod (23) mounted on the side wall of the mounting seat (22); a mounting plate (24) is vertically mounted on the side wall of the connecting rod (23); limiting semi-rings (25) are respectively mounted on the upper and lower ends of the mounting plate (24); and a plurality of limiting rollers (26) are rotatably arranged in the limiting semi-rings (25).

7. A road coring machine according to claim 6, characterized in that: The center of the limiting semi-ring (25) is coaxial with the center of the drill tube (12).

8. The road coring machine according to claim 6, characterized in that: The number of the limiting components is the same as the number of the drill barrels (12) and the positions are corresponding.

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