CN2321557Y

CN2321557Y - Screw bolt rolling mill

Info

Publication number: CN2321557Y
Application number: CN 97249436
Authority: CN
Inventors: 陈传为
Original assignee: JIANANTAI BUILDING SCAFFOLDING CO Ltd BEIJING
Current assignee: JIANANTAI BUILDING SCAFFOLDING CO Ltd BEIJING
Priority date: 1997-11-17
Filing date: 1997-11-17
Publication date: 1999-06-02
Anticipated expiration: 2007-11-17

Abstract

The utility model relates to a screw rod rolling mill, which comprises a mill body, a motor, a belt driving device, a reduction box, a conveying pipe, universal joints, rolling heads and a cooling system, wherein, the number of the rolling heads is at least three, respective thread rolling wheels of the rolling heads are connected with at least three output shafts of the reduction box by at least three universal joints, and the output shafts which rotate in a uniform speed are uniformly distributed around the conveying pipe; the rolling heads are uniformly distributed on a circumference which is concentric with the conveying pipe by two respective positioning guide rails on a positioning plate on the mill body. The rolling heads can slide between the positioning guide rails by an adjusting screw rod, and by arched slotted holes on a rear slide frame of the rolling heads, screw nails are used for regulating the rotating angles of the rolling heads. The screw rod rolling mill is especially suitable for rolling a hollow screw rod.

Description

The screw rod rolling mill

What the utility model related to a kind of metal tube rod does not have the machining field substantially, specifically, relates to a kind of screw rod rolling mill.

At present, the rolling mill that a kind of rolling solid screw is arranged, it comprises fuselage, be installed in motor on the fuselage, reduction box, rolling head and cold machine system, and the belt drive unit that motor is linked to each other with the reduction box power shaft, installs and the carrier pipe and the universal joint that the cylindrical die roll in the rolling head is linked to each other with reduction gearbox output shaft of conveying screw rod.Because have only two cylindrical die rolls in the rolling head of this rolling mill, when being used for processing cored screw, cored screw will be out of shape, therefore be restricted in the use, can only be used to process solid screw.

The purpose of this utility model, be to overcome above-mentioned deficiency of the prior art and provide a kind of can the rolling solid screw can the rolling cored screw rolling mill.

Screw rod rolling mill of the present utility model, comprise fuselage, be installed in the motor on the fuselage, reduction box, rolling head and cooling system with cylindrical die roll, and the belt drive unit that motor is linked to each other with the reduction box power shaft, the carrier pipe of conveying screw rod and the universal joint that the cylindrical die roll in the rolling head is linked to each other with the output shaft of reduction box, the output shaft of wherein said reduction box is at least around three uniform constant speed turning cylinders of described carrier pipe, described rolling head and the cylindrical die roll on it all are at least three, they are outside described carrier pipe, and rely on the location-plate on the described fuselage separately two positioning guide rails and with a concentric circumference of described carrier pipe on be evenly distributed, wherein cylindrical die roll is bearing on the rolling head by bearing by fulcrum; At least three of described universal joint; The screw of two symmetrical distributions is arranged at the bottom of described rolling head, passing the screw that places the long arc-shaped holes on the balladeur train of described rolling head back and be screwed into described screw by two is fixed to described rolling head on the antetheca of described balladeur train, and be connected with on the rear wall of this balladeur train one with described location-plate on the adjusting screw(rod) that is threaded of riser, this adjusting screw(rod) is fixed by the thrust bearing and the nut of described riser both sides.

Screw rod rolling mill of the present utility model, wherein has coaxial concavo-convex alternate and wide rolled thread tooth on the external cylindrical surface of cylindrical die roll, its depth of threat adds the depth of threat that is deep to desire processing screw rod gradually by two side direction of cylindrical die roll middle part, and it is wide that the width of rolled thread tooth equals the tooth of desire processing screw rod.

Screw rod rolling mill of the present utility model, wherein reduction box can be the multi-stage gear reduction box.

The advantage of the utility model screw rod rolling mill is: adopted at least three uniform rolling heads, make processed screw rod in the rolling process stressed evenly, indeformable, therefore not only can the rolling cored screw, and be particularly suitable for rolling solid screw, the screw flight intensity height that rolling goes out.Moreover rolling head can be done to move and regulate and the corner adjusting, and the accuracy of thread that makes it to process is also high.

Below in conjunction with accompanying drawing an embodiment of the present utility model is described in detail.

Fig. 1 is the perspective view of the utility model screw rod rolling mill.

Fig. 2 is the front view that rolling mill shown in Figure 1 is laid down oil holding slot.

Fig. 3 is that the B of rolling mill shown in Figure 2 is to view.

Fig. 4 is that the D of rolling mill shown in Figure 3 is to view.

Fig. 5 is the structure expanded view of the utility model screw rod rolling mill gear reduction box and rolling head part.

Fig. 6 is the E-E cutaway view among Fig. 5.

Referring to Fig. 1 to Fig. 5.Screw rod rolling mill of the present utility model, one motor 2 is installed in the bottom of its fuselage 1, by a V belt transmission device 6, the commentaries on classics distance of motor 2 is passed to the power shaft 11 of the gear reduction box 3 that is installed in fuselage 1 top, then successively after the gear reduction on axle II, III, IV and the V, gear and three universal joints 10 on the output shaft 9 of reduction box (i.e. axle VI, VII, VIII and IX) again, pass to three cylindrical die rolls 8 in three rolling heads 4, and cylindrical die roll 8 is bearing on the rolling head 4 by bearing 15 by fulcrum 14.Its axis VII is a carrier pipe 7, the cored screw or the solid screw that are rolled in order to conveying.Three rolling heads are placed in respectively to be fixed in and are on the location-plate 12 in three pairs of uniform positioning guide rails 13 of 120 degree angles, and slide in guide rail 13 by the screw rod 18 that is threaded on the rear wall 21 that is fixed in balladeur train 16 and with riser 17 on the location-plate 12.Adjusting screw(rod) 18 is fixed by the thrust bearing 22 and the nut 23 of riser 17 both sides after regulating and finishing.

Referring to Fig. 5 and Fig. 6, be processed with the screw of two symmetrical distributions in the bottom of rolling head 4, the bottom of rolling head 4 rests on the antetheca 19 of its back balladeur train 16, on antetheca 19, be processed with two long arc-shaped holes with above-mentioned two corresponding positions of screw, after two screws 20 are passed two long arc-shaped holes, the rolling head 4 of adjusting corner is fixed on the antetheca 19 of balladeur train 16.In the rolling process, cool off cylindrical die roll 8 and processed screw rod by the cooling system 5 of fuselage 1 bottom.

It is 34-42mm that this rolling mill is particularly suitable for being used for processing external diameter, and depth of threat is 2-3.5mm, and the tooth distance is the hollow or solid screw of 4-6mm.Therefore, the cylindrical die roll on this rolling mill rolling head can require according to the screw rod of desire processing to change.When the processing cored screw, insert a solid rod member in its hollow pipe stock.In addition, after the rolled thread odontotripsis of cylindrical die roll one end, the cylindrical die roll tune can be installed, make the upstream end of the unworn rolled thread tooth of the cylindrical die roll other end towards the hollow pipe stock.

Claims

1. screw rod rolling mill, comprise fuselage (1), be installed in motor (2), the reduction box (3) on the fuselage (1), rolling head (4) and cooling system (5) with cylindrical die roll (8), and the carrier pipe (7) of the belt drive unit (6) that motor (2) is linked to each other with the power shaft (11) of reduction box (3), conveying screw rod with cylindrical die roll (8) in the rolling head (4) and the universal joint (10) that the output shaft (9) of reduction box (3) links to each other, it is characterized in that: the output shaft (9) of reduction box (3) is at least the axle that rotates around three uniform constant speed of carrier pipe (7); Rolling head (4) and the cylindrical die roll on it (8) all are at least three, they are outside carrier pipe (7), and rely on the location-plate (12) on the fuselage (1) separately two positioning guide rails (13) and with a concentric circumference of carrier pipe (7) on be evenly distributed, wherein cylindrical die roll (8) leans on bearing (15) to be bearing on the rolling head (4) by fulcrum (14); Universal joint (10) is at least three; The screw of two symmetrical distributions is arranged at the bottom of rolling head (4), rolling head (4) is fixed on the antetheca (19) of balladeur train (16) by two screws (20) that pass the long arc-shaped holes on the antetheca (19) that places roller-head (4) back balladeur train (16) and be screwed into described screw, and be connected with on the rear wall (21) of balladeur train (16) one with location-plate (12) on the adjusting screw(rod) (18) that is threaded of riser (17), adjusting screw(rod) (18) is fixed by the thrust bearing (22) and the nut (23) of riser (17) both sides.

2. according to the screw rod rolling mill of claim 1, it is characterized in that: have coaxial concavo-convex alternate and wide rolled thread tooth on the external cylindrical surface of cylindrical die roll (8), its depth of threat adds the depth of threat that is deep to desire processing screw rod gradually by the two side direction middle part of cylindrical die roll (8); It is wide that the width of rolled thread tooth equals the tooth of desire processing screw rod.

3. according to the screw rod rolling mill of claim 1 or 2, it is characterized in that: reduction box (3) is the multi-stage gear reduction box.