CN2204818Y

CN2204818Y - Concrete pavement cutter

Info

Publication number: CN2204818Y
Application number: CN 93222689
Authority: CN
Inventors: 刘向军; 赵秉义; 黄景文
Original assignee: HUANGHE DIAMOND CO Ltd
Current assignee: HUANGHE DIAMOND CO Ltd
Priority date: 1993-08-23
Filing date: 1993-08-23
Publication date: 1995-08-09
Anticipated expiration: 2003-08-23

Abstract

A concrete pavement cutter is a machine used for cutting concrete pavement's dilatation joint, which makes use of an electric motor installed on a machine frame, a diamond saw blade driven by a belt pulley and a hand-push handle which makes fore and back road wheels move forward to realize the cutting and feeding, and a rotary hand wheel makes the fore wheel move up and down to adjust the cutting depth. The machine is characterized in that a main shaft can serve as a dead shaft and is fixed on the machine frame, the saw blade is fixed on the end surface of the belt pulley, a front shaft can serve as a rotating shaft and is fastened together with the fore wheel, and the cutting depth is adjusted by a handle link mechanism. The cutter of the utility model has the advantages that the operation accuracy of the machine head is increased, cutting linearity and cutting quality can be ensured, the service life is prolonged and the cost of the complete machine is reduced.

Description

Concrete pavement cutter

The utility model relates to a kind of concrete pavement construction machinery, particularly a kind of slab cutter that is used to cut concrete road surface expansion joint.

At present, slab cutter, its head part are to adopt the main shaft rotary type.And motor and head part layout are unreasonable, the overhanging very long and complex structure of main shaft, and complete machine structure is huge, and cutting accuracy is not high.Its front axle is a dead axle in addition, and promptly two front-wheels are separate and rotate.Like this, in cutting process, be difficult to guarantee its linearity.So in practice, often will on special additional track, advance, increase trouble to construction.

The purpose of the utility model is to disclose a kind of slab cutter at the deficiency of aforementioned prior art, and it has adopted main shaft is dead axle, and front axle is the form of structure of rotating shaft, thereby simplifies the structure, and has improved cutting accuracy, has guaranteed construction quality.

The utility model is achieved in that slab cutter, mainly by frame 12, be installed in handle 1, motor 10, head part M and protective cover 11 thereof on the frame 12, be installed in the water tank 9 on the protective cover 11, front-wheel 20, trailing wheel 18, and the connecting rod hand wheel system that makes front-wheel 20 do elevating movement is formed.Wherein: an end of the main shaft 22 of head part M is fastened on the frame 12, its extension packing bearing, wheel 23 thongs on bearing, belt pulley 23 is hollow, the terminal pad 24 of installation saw blade 26 is connected with spindle pulley 23 mutually by the screw of its seam, end face and circumference uniform distribution, and saw blade 26 is contained on the terminal pad 24.Two front-wheels 20 and rotating shaft 21 fastening one, rotating shaft 21 is contained in the right-hand member cover of connecting rod 16, the middle axle sleeve of connecting rod 16 is connected mutually with hind axle 17, nut 6 is being welded on montant 8 tops, handwheel 2 is housed on the screw mandrel 7, the overcoat 3 of screw mandrel 7 is contained on the guide 4 by pin 5, in order to increase the pressure of saw blade 26 cooling waters, the water tank 9 of the usefulness that is filled with water be installed in protective cover 11 above.

Good effect of the present utility model is: improved the stationarity of machine run, linearity, and service life of a machine have also reduced cost simultaneously, have guaranteed the quality of pavement construction.

Description of drawings is as follows:

The elevation of Fig. 1 the utility model structure.

The vertical view of Fig. 2 the utility model structure.

Wherein:

1, handle 2, handwheel 3, overcoat 4, guide

5, pin 6, nut 7, screw mandrel 8, montant

9, water tank 10, motor 11, protective cover 12, frame

13, back seat 14, connecting plate 15, water pipe 16, connecting rod

17, hind axle 18, trailing wheel 19, bearing 20, front-wheel

21, rotating shaft 22, main shaft 23, belt pulley 24, terminal pad

25, protective cover 26, saw blade M, head part

Below in conjunction with accompanying drawing the utility model is described further:

As shown in Figure 1, 2, the bearing 19 of the main shaft 22 of motor 10, head part M, handle 1, hind axle 17 is connected with bolt and frame 12 respectively.Main shaft 22 is as the dead axle that does not rotate, and its extension is equipped with dress spindle pulley 23 on bearing, the bearing, and belt pulley 23 is hollow, and saw blade terminal pad 24 is by its seam, the screw of end face and circumference uniform distribution and the spindle pulley 23 composition head part that is connected mutually.When spindle pulley 23 rotates, directly drive terminal pad 24 and saw blade 26 rotations, realize cutting work.The adjusting of depth of cut realizes by connecting rod 16 and handwheel 2.Affixed and the synchronous rotation of two front-wheels 20 and rotating shaft 21, the diameter of axle of rotating shaft 21 leans on sliding sleeve or roller bearings in the front end axle sleeve of connecting rod 16, the middle axle sleeve of connecting rod 16 is connected mutually with hind axle 17, thereby form the intermediate support and the center of rotation of connecting rod 16, nut 6 is being welded on montant 8 tops, when screw mandrel 7 armrests wheel 2 rotates, montant 8 moves up and down, make connecting rod 16 around hind axle 17 swings,, realize adjusting the saw blade depth of cut so front-wheel 20 is done elevating movement thereupon.

Be to increase the pressure of saw blade 26 cooling waters, the water tank 9 of the usefulness that is filled with water is equipped with in protective cover 11 tops, and water tank 9 links to each other with saw blade cooling water pipe 15 by valve, sebific duct, and opening valve during cutting can be to the saw blade cooling of spraying water.Trailing wheel 18 of the present utility model is to adopt iron tyre and rubber coating not, its objective is that the premature failure that prevents the trailing wheel wheel face is to prolong its application life.

Claims

1, a kind of slab cutter, by frame (12), be installed in the handle (1) on the frame (12), motor (10), head part M and protective cover thereof (11), be installed in the water tank (9) on the protective cover (11), front-wheel (20), trailing wheel (18) and make front-wheel (20) make the connecting rod (16) of elevating movement, handwheel (2) is formed, it is characterized in that: an end of the main shaft of head part M (22) is fastened on the frame (12), its extension packing bearing, wheel (23) thongs on bearing, belt pulley (23) is hollow, the terminal pad (24) that saw blade is installed is by its seam, the screw of end face and circumference uniform distribution is connected mutually with spindle pulley (23), saw blade (26) is contained on the terminal pad (24), two front-wheels (20) are fastenedly connected with rotating shaft (21), rotating shaft (21) is contained in the right-hand member axle sleeve of connecting rod (16), the middle axle sleeve of connecting rod (16) is connected mutually with hind axle (17), nut (6) is being welded on montant (8) top, handwheel (2) is housed on the screw mandrel (7), and the overcoat (3) of screw mandrel (7) is contained on the guide (4) by pin (5).

2, slab cutter according to claim 1 is characterized in that: water tank (9) be installed in protective cover (11) above.