CN212452182U

CN212452182U - Tamping device for backfilling pavement core holes

Info

Publication number: CN212452182U
Application number: CN202020774932.2U
Authority: CN
Inventors: 闫翔鹏; 安平; 韩烨; 韦金城; 蔡翔; 刘卓雨; 丁海洋; 王坤; 张晓萌; 胡家波; 王光勇; 杨永富; 李增光; 夏雨; 李广
Original assignee: Rizhao Highway Construction Co ltd; Shandong Transportation Institute
Current assignee: Rizhao Highway Construction Co ltd; Shandong Transportation Institute
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-02-02
Anticipated expiration: 2030-05-11

Abstract

The utility model relates to the technical field of on-site detection of pavement engineering, in particular to a tamping device for backfilling a core hole of a pavement, which comprises a frame, a seat, a pedal crank, a rammer lifting frame, a lifting adjusting mechanism, a rammer mounting seat, a rammer, an incomplete gear and a rack; the bottom of the frame is provided with a universal wheel with a parking brake, and the lifting adjusting mechanism is used for adjusting the vertical position of the rammer lifting frame relative to the frame; the rammer is arranged on the rammer mounting seat; the incomplete gear is rotatably arranged on the frame, the axis of the incomplete gear is in the horizontal direction, the driving shaft is connected with the incomplete gear, and the rack is fixedly arranged on the rammer mounting seat and can be meshed with the incomplete gear. Through the utility model discloses a tamping unit for backfilling road surface coring hole, constructor both legs exert oneself the power drive ram action, and for the mode that prior art hand was lifted, improve the efficiency of construction, reduce constructor's fatigue degree and avoid its muscle strain to save the manpower, eliminate the potential safety hazard.

Description

Tamping device for backfilling pavement core holes

Technical Field

The utility model relates to a road surface engineering witnessed inspections technical field specifically is a tamping unit for backfilling core hole is got on road surface.

Background

The asphalt concrete pavement has the advantages of smooth surface, no joint, small driving vibration, fast open traffic, simple and convenient maintenance and the like, and is widely applied to the construction of highways of different grades. After the construction of the pavement is finished, in order to verify the thickness, the strength and other related indexes of a structural layer of the asphalt pavement, coring detection is required to be carried out on the structural layer; drilling out a place at intervals is generally required, which has great damage to the road surface, and therefore, coring holes need to be backfilled. The method for filling the pit hole generally comprises the step of filling the pit hole in a layered mode by using materials taken out during pit digging or new hot materials, wherein tamping equipment is needed to tamp the materials during filling. CN207452650U discloses a core tamping instrument that backfills in road surface, locate including hammer stem and cover on the hammer stem and follow the gliding drop hammer of hammer stem, the one end of hammer stem is provided with the hammer cake that is used for tamping the road surface, the middle part of hammer stem is provided with and is used for the platform of forcing of ramming is pounded to the drop hammer. When the tamping machine is used, the drop hammer is lifted to a proper height and then released, the drop hammer slides along the hammer rod to generate kinetic energy, the force generated by tamping acts on the hammer cake through the stress platform, and the backfilled pavement is tamped through the hammer cake, so that the tamping operation of the backfilled pavement is realized. The road surface coring, backfilling and tamping tool has the following defects: (1) when the tool is used, one person needs to hold the handle, and the other person lifts the drop hammer repeatedly, otherwise the tamping tool can be toppled over, or the tool is pulled out of the coring hole under the action of the lifting force of the drop hammer, so that constructors are injured by smashing, and therefore at least two constructors are needed to operate the tamping tool; (2) constructors lift the drop hammer by arm force, and in order to ensure that the drop hammer has enough potential energy, the constructors need to repeatedly bow and squat, so that not only is the construction efficiency low, but also the constructors are easy to fatigue and even muscle strain.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough of above-mentioned prior art, provide a tamping unit for backfilling the road surface and get core hole, constructor both legs exert oneself the drive ram action, for the mode that prior art hand was lifted, improve the efficiency of construction, reduce constructor's fatigue degree and avoid its muscle strain to save the manpower, eliminate the potential safety hazard.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize: a tamping device for backfilling core holes on a road surface comprises a frame, a seat, a pedal crank, a rammer lifting frame, a lifting adjusting mechanism, a rammer mounting seat, a rammer, an incomplete gear and a rack; the bottom of the rack is provided with a universal wheel with a parking brake, the seat is fixedly arranged on the rack, two pedal cranks are arranged on the rack through a driving shaft, and the two pedal cranks have an angle of 180 degrees and are respectively positioned on two sides of the seat; the rammer lifting frame is vertically movably arranged on the rack, and the lifting adjusting mechanism is used for adjusting the vertical position of the rammer lifting frame relative to the rack; a first guide rod is fixedly arranged on the rammer lifting frame, a guide sleeve is fixedly arranged on the rammer mounting seat, the guide sleeve is vertically sleeved on the first guide rod in a sliding manner, a limiting block is arranged at the lower end of the first guide rod, and the rammer is mounted on the rammer mounting seat; the incomplete gear is rotatably arranged on the frame, the axis of the incomplete gear is in the horizontal direction, the driving shaft is connected with the incomplete gear, and the rack is fixedly arranged on the rammer mounting seat and can be meshed with the incomplete gear.

The technical proposal of the utility model is also that: the lifting adjusting mechanism comprises a screw rod and a nut, the nut is rotatably arranged on the rack, the axis of the nut is in the vertical direction, and the screw rod is fixedly connected with the rammer lifting frame and is in threaded fit with the nut; the rammer crane is fixedly provided with a second guide rod, and the axis of the second guide rod is in a vertical direction and is in sliding fit with the frame. By adopting the technical scheme, the vertical limit position of the rammer can be adjusted only by rotating the nut, and the rammer is labor-saving, safe and convenient.

The technical proposal of the utility model is also that: the lifting adjusting mechanism further comprises a hand wheel, and the hand wheel is coaxially and fixedly connected with the nut.

The technical proposal of the utility model is also that: the guide sleeve is in sliding fit with the first guide rod through a spline.

The technical proposal of the utility model is also that: the gearbox is fixedly arranged on the rack, the driving shaft is connected with an input shaft of the gearbox, and an output shaft of the gearbox is connected with the incomplete gear. By adopting the technical scheme, the force of constructors can be reduced through the speed reduction and torque increase functions of the reduction gearbox.

The technical proposal of the utility model is also that: the transmission mechanism comprises a transmission shaft, a transmission shaft and a reduction box, and is characterized by further comprising a first chain transmission mechanism and a second chain transmission mechanism, wherein the transmission shaft is connected with an input shaft of the reduction box through the first chain transmission mechanism, and an output shaft of the reduction box is connected with the incomplete gear through the second chain transmission mechanism.

The technical proposal of the utility model is also that: and the rammer mounting seat and the rammer are respectively provided with a stud and a threaded hole which are in threaded fit. By adopting the technical scheme, the proper rammer is selected according to the inner diameter of the core-taking hole during construction, and the rammer mounting seat can be conveniently and quickly disassembled.

The technical proposal of the utility model is also that: the frame is fixedly provided with a handrail which is positioned in front of the seat. By adopting the technical scheme, during construction, constructors can hold the handrail, prevent the constructors from falling from the seat and enable the constructors to exert force more easily.

The technical proposal of the utility model is also that: the promotion handle has set firmly in the frame, be convenient for promote the utility model discloses a tamping unit for backfilling road surface core hole is got.

When backfilling the construction, constructor promotes the utility model discloses a core hole is got to nearly waiting to backfill the core hole is got to the tamping device for backfilling the road surface, makes the rammer aim at and gets the core hole, prevents the universal wheel rotation through stopping. Then the material is filled into the coring hole, and the lower limit position of the rammer is adjusted by the lifting adjusting mechanism. Constructors ride on the seat, pedal cranks are pedaled by two legs, the driving shaft is made to rotate, the driving shaft drives the incomplete gear to rotate, the toothed part of the incomplete gear drives the rack meshed with the incomplete gear to move upwards, so that the rammer is driven to move upwards to store gravitational potential energy, the toothless part of the incomplete gear releases the rack, the rammer falls to convert the gravitational potential energy into kinetic energy, and the rammer is reciprocated and lifted for several times to tamp the material. After the construction is finished, the rammer is lifted through the lifting adjusting device, the brake is unlocked and stopped, and the tamping device can be pushed at the moment.

Compared with the prior art, the utility model discloses a tamping unit for backfilling core hole on road surface's beneficial effect does: (1) the utility model is stable, the rammer can not topple over, and the constructor is far away from the rammer and can not be injured by the rammer, thereby eliminating the potential safety hazard; (2) the backfilling construction of the coring hole can be carried out by only one constructor, so that the labor cost is saved; (3) constructors mainly drive the rammers to act by exerting force through the two legs, compared with a hand-lifting mode in the prior art, the construction efficiency is greatly improved, the fatigue degree of the constructors can be reduced, and muscle strain of the constructors can be avoided; (4) through lifting adjusting mechanism, can adjust the lower extreme position of ram to the demand of the core hole degree of depth of adaptation.

Drawings

FIG. 1 is a perspective view of a tamping device for backfilling a core hole in a roadway according to an embodiment.

FIG. 2 is a front view of a tamping device for backfilling a coring hole of a roadway surface in an embodiment.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a sectional view taken along line B-B in fig. 2.

FIG. 5 is a reference diagram illustrating the use of the tamping device for backfilling a core hole in a road surface according to an embodiment.

FIG. 6 is a top view of a tamping device for backfilling a coring hole of a roadway surface in an embodiment.

In the figure: 1. the device comprises a frame, 2, a seat, 3, a pedal crank, 4, a rammer lifting frame, 5, a rammer mounting seat, 6, a rammer, 7, an incomplete gear, 8, a rack, 9, a universal wheel, 10, a driving shaft, 11, a first guide rod, 12, a guide sleeve, 13, a limiting block, 14, a screw rod, 15, a nut, 16, a second guide rod, 17, a hand wheel, 18, a spline, 19, a reduction box, 20, a first chain transmission mechanism, 21, a second chain transmission mechanism, 22, a stud, 23, a handrail, 24, a pushing handle, 25, a pedal, 26 and a reduction gear set.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the following further describes the embodiments of the present invention with reference to the attached drawings.

As shown in figures 1-6, the tamping device for backfilling a core hole on a road surface comprises a frame 1, a seat 2, a pedal crank 3, a rammer lifting frame 4, a lifting adjusting mechanism, a rammer mounting seat 5, a rammer 6, an incomplete gear 7, a rack 8, a reduction box 19, a first chain transmission mechanism 20 and a second chain transmission mechanism 21.

The bottom of the frame 1 is provided with a universal wheel 9 with a parking brake. The seat 2 is fixedly arranged on the frame 1. The frame 1 is fixedly provided with a handrail 23, and the handrail 23 is positioned in front of the seat 2. A pushing handle 24 is fixedly arranged on the frame 1.

The number of the pedal cranks 3 is two, two pedal cranks 3 are arranged on the frame 1 through a driving shaft 10, and the angle of the two pedal cranks 3 is 180 degrees and are respectively positioned at two sides of the seat 2. The end of the pedal crank 3 is provided with a pedal 25.

The rammer crane 4 can be vertically moved and installed on the frame 1, and is specific, the second guide rod 16 is fixedly arranged on the rammer crane 4, and the axis of the second guide rod 16 is in the vertical direction and is in sliding fit with the frame 1.

The lifting adjusting mechanism is used for adjusting the vertical position of the rammer lifting frame 4 relative to the rack 1, and specifically comprises a screw rod 14, a nut 15 and a hand wheel 17, wherein the nut 15 is rotatably installed on the rack 1, the axis of the nut is in the vertical direction, and the screw rod 14 is fixedly connected with the rammer lifting frame 4 and is in threaded fit with the nut 15. The hand wheel 17 is coaxially and fixedly connected with the nut 15.

As shown in fig. 2 and 4, a first guide rod 11 is fixedly arranged on the ram lifting frame 4, a guide sleeve 12 is fixedly arranged on the ram mounting seat 5, the guide sleeve 12 is vertically slidably sleeved on the first guide rod 11, and specifically, the guide sleeve 12 is slidably matched with the first guide rod 11 through a spline 18. The lower end of the first guide rod 11 is provided with a limiting block 13 for limiting the lower limit position of the rammer mounting seat 5 relative to the rammer lifting frame 4.

The rammer mounting seat 5 and the rammer 6 are respectively provided with a stud 22 and a threaded hole which are in threaded fit, and the rammer 6 is mounted on the rammer mounting seat 5 through threaded connection.

The incomplete gear 7 is rotatably arranged on the frame 1, the axis of the incomplete gear is in a horizontal direction, the driving shaft 10 is connected with the incomplete gear 7, and the rack 8 is fixedly arranged on the rammer mounting seat 5 and can be meshed with the incomplete gear 7.

The reduction gearbox 19 is fixedly arranged on the machine frame 1, as shown in fig. 6, a multi-stage reduction gear set 26 is arranged in the reduction gearbox 19, and reduction transmission is performed between an input shaft and an output shaft of the reduction gearbox 19. The drive shaft 10 is connected with an input shaft of a reduction gearbox 19 through a first chain transmission mechanism 20, and an output shaft of the reduction gearbox 19 is connected with the incomplete gear 7 through a second chain transmission mechanism 21.

During backfilling construction, a constructor pushes the tamping device for backfilling the core holes on the road surface to the position near the core holes to be backfilled, selects a proper tamping hammer 6 and installs the proper tamping hammer 6 on the tamping hammer mounting seat 5, so that the tamping hammer 6 is aligned to the core holes, and the universal wheels 9 are prevented from rotating by stopping. The material is then filled into the coring hole and the hand wheel 17 is operated to rotate the nut 15 to drive the screw 14 to move vertically to adjust the ram crane 4 to the appropriate height. The constructor rides on the seat 2 and holds the handrail 23, and pedals the pedal crank 3 with two legs to rotate the driving shaft 10, the driving shaft 10 drives the incomplete gear 7 to rotate, the toothed part of the incomplete gear 7 drives the rack 8 engaged with the incomplete gear to move upwards, so that the rammer 6 is driven to move upwards and store gravitational potential energy, the toothless part of the incomplete gear 7 releases the rack 8, so that the rammer 6 falls to convert the gravitational potential energy into kinetic energy (as shown in fig. 5), and the rammer 6 is repeatedly lifted and lowered for a plurality of times to tamp the material. After the construction is finished, the rammer 6 is lifted through the lifting adjusting device, the brake is unlocked and stopped, and the tamping device can be pushed at the moment.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a tamping unit for backfilling core hole in road surface which characterized in that: comprises a frame (1), a seat (2), a pedal crank (3), a rammer lifting frame (4), a lifting adjusting mechanism, a rammer mounting seat (5), a rammer (6), an incomplete gear (7) and a rack (8); the bottom of the rack (1) is provided with a universal wheel (9) with a parking brake, the seat (2) is fixedly installed on the rack (1), the number of the pedal cranks (3) is two, the two pedal cranks (3) are installed on the rack (1) through a driving shaft (10), the angles of the two pedal cranks (3) are 180 degrees and are respectively positioned on two sides of the seat (2); the rammer crane (4) is vertically movably mounted on the frame (1), and the lifting adjusting mechanism is used for adjusting the vertical position of the rammer crane (4) relative to the frame (1); a first guide rod (11) is fixedly arranged on the rammer lifting frame (4), a guide sleeve (12) is fixedly arranged on the rammer mounting seat (5), the guide sleeve (12) is vertically sleeved on the first guide rod (11) in a sliding manner, a limiting block (13) is arranged at the lower end of the first guide rod (11), and the rammer (6) is arranged on the rammer mounting seat (5); the incomplete gear (7) is rotatably arranged on the frame (1) and the axis of the incomplete gear is in the horizontal direction, the driving shaft (10) is connected with the incomplete gear (7), and the rack (8) is fixedly arranged on the rammer mounting seat (5) and can be meshed with the incomplete gear (7).

2. The tamper device for backfilling coring holes of the road surface according to claim 1, wherein: the lifting adjusting mechanism comprises a screw rod (14) and a nut (15), the nut (15) is rotatably arranged on the rack (1), the axis of the nut is in the vertical direction, and the screw rod (14) is fixedly connected with the rammer lifting frame (4) and is in threaded fit with the nut (15); the rammer crane (4) is fixedly provided with a second guide rod (16), and the axis of the second guide rod (16) is in the vertical direction and is in sliding fit with the frame (1).

3. The tamper device for backfilling coring holes of the road surface according to claim 2, wherein: the lifting adjusting mechanism further comprises a hand wheel (17), and the hand wheel (17) is coaxially and fixedly connected with the nut (15).

4. A tamper device for backfilling a coring hole of a road surface according to any one of claims 1 to 3, wherein: the guide sleeve (12) is in sliding fit with the first guide rod (11) through a spline (18).

5. A tamper device for backfilling a coring hole of a road surface according to any one of claims 1 to 3, wherein: the gearbox is characterized by further comprising a reduction gearbox (19), wherein the reduction gearbox (19) is fixedly installed on the rack (1), the driving shaft (10) is connected with an input shaft of the reduction gearbox (19), and an output shaft of the reduction gearbox (19) is connected with the incomplete gear (7).

6. The tamper device for backfilling coring holes of the road surface according to claim 5, wherein: the transmission device is characterized by further comprising a first chain transmission mechanism (20) and a second chain transmission mechanism (21), the driving shaft (10) is connected with an input shaft of the reduction box (19) through the first chain transmission mechanism (20), and an output shaft of the reduction box (19) is connected with the incomplete gear (7) through the second chain transmission mechanism (21).

7. A tamper device for backfilling a coring hole of a road surface according to any one of claims 1 to 3, wherein: and the rammer mounting seat (5) and the rammer (6) are respectively provided with a stud (22) and a threaded hole which are in threaded fit.

8. A tamper device for backfilling a coring hole of a road surface according to any one of claims 1 to 3, wherein: the frame (1) is fixedly provided with a handrail (23), and the handrail (23) is positioned in front of the seat (2).

9. A tamper device for backfilling a coring hole of a road surface according to any one of claims 1 to 3, wherein: a pushing handle (24) is fixedly arranged on the frame (1).