CN201470679U

CN201470679U - Steel pipe rotary feeding mechanism of pipe mill

Info

Publication number: CN201470679U
Application number: CN2009202312233U
Authority: CN
Inventors: 胡卫文
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-04
Filing date: 2009-09-04
Publication date: 2010-05-19
Anticipated expiration: 2019-09-04

Abstract

The utility model relates to a steel pipe rotary feeding mechanism of pipe mill, comprising a bed body, a transmission mechanism, a single-way clutch and a feeding mechanism, wherein the transmission mechanism includes a cam installed on a spindle and an oscillating rod mechanism; the oscillating rod mechanism includes a lever and a front oscillating rod which are articulated to two sides of a front connecting rod, a pull rod and a rear oscillating rod which are articulated to two sides of a rear connecting rod; the front oscillating rod and the pull rod are fixed to an oscillating rod shaft; a concave arm articulated to one side of the lever on the bed body is connected with the cam; the single-way clutch installed on the rear oscillating rod is connected with a transmission shaft installed on the bed body; the feeding mechanism includes two screw rods and a shaft sleeve which are installed on the bed body and parallel to each other in axial line; a second taper gear on a first screw rod is engaged with a first taper gear; two transmission gears installed on two screw rods are engaged with a final drive gear sleeved to the shaft sleeve; and a clutch sliding sleeve is installed on the shaft sleeve; the steel pipe rotary feeding mechanism is featured in simple structure, working reliability, the capability of accurately providing feeding quantity and feeding time required by the rolling mill, low manufacturing cost and low maintenance cost.

Description

The steel pipe rotation feed mechanism of pipe mill

Technical field

The utility model relates to a kind of steel pipe rotation feed mechanism of pipe mill, belongs to the automatic tube rolling mill technical field.

Background technology

For realizing steel pipe feeding and spinning movement in the tube rolling process, the clearance-type feed mechanism is equipped with usually, the clearance-type feed mechanism is a kind of to be to adopt the Geneva mechanism of being made up of sheave and straight pin, Geneva mechanism has simple in structure, easily processing, advantages such as reliable operation.But it is unadjustable also to exist traverse, and the acceleration of sheave when starting and stopping is big, and impact is arranged, and can produce very big noise in operation process, influences production environment on the one hand, and wear and tear easily owing to sheave in the aspect in addition, and maintenance is complicated.

Utilize hydraulic means to realize this clearance-type feed motion in addition, hydraulic pressure rotation feed mechanism is to utilize hydraulic pump and magnetic valve allocations, and comes the control procedure of deadline and distance by hydraulic motor.Its defective is, hydraulic oil pump works long hours to be needed to consume electric power energy, and hydraulic oil is easy to generate very big heat after working long hours, and fluid easily produces bubble, influences the functional reliability of hydraulic means.Moreover magnetic valve works long hours and is easy to damage, the maintenance cost in having increased in the use.

The advanced person adopts programmable controller to realize this intermittent motion at present, is to reach intermittent motion by the open and close that write software control direct current generator or servomotor.But exist the manufacturing cost height, motor opens and closes for a long time, and rush of current is big, and energy consumption is big, defectives such as the easy damage of circuit.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, reliable operation, the needed feed of milling train can accurately be provided and send the steel pipe rotation feed mechanism of the low pipe mill of time, manufacturing cost and maintenance cost to.

The utility model is that the technical scheme that achieves the above object is: a kind of steel pipe rotation feed mechanism of pipe mill, it is characterized in that: comprise lathe bed and transmission mechanism, one-way clutch and feed mechanism, described transmission mechanism comprises cam and the endplay device of installing on the main shaft, endplay device comprises lever and the preceding rocking bar that is hinged on the front rod both sides, the pull bar that is hinged on the back link both sides and back fork and rocker shaft, preceding rocking bar and pull bar are separately fixed at the both sides of rocker shaft, and the spill arm and the cam that are hinged on lever one side on the lathe bed join; One-way clutch after described being installed on the fork is connected with the power transmission shaft on being installed in lathe bed, and first bevel gear is installed on the power transmission shaft; Described feed mechanism comprises to be installed on the lathe bed and first screw mandrel, second screw mandrel and the axle sleeve of axis parallel, second bevel gear is installed on first screw mandrel and with first bevel gear and meshes, be installed in first travelling gear and second travelling gear and the gears engaged of biography eventually that is sleeved on the axle sleeve on first screw mandrel and second screw mandrel respectively, clutch slides on the axle sleeve spline, and clutch passes gear engagement with end or separates.

The utility model adopts the transmission mechanism of cam and endplay device formation, can not only aim at the number of degrees of rotational time or calibration accurately.And maintenance the time does not need to check the number of degrees of rotational time and calibration, adopt endplay device can reduce manufacturing cost significantly, transmission of power is reliable, owing to utilize cam structure to slow down rotating speed, so reasonably utilize the rotating time, feed with the fastest speed, restore with the slowest speed, reciprocal with this.The utility model adopts camming movement to drive endplay device and one-way clutch, can on demand time and distance do intermittent motion, the time and the distance of reasonably having distributed motion, thereby the needed feed of milling train accurately is provided and sends the time to, must not increase any power, only utilize the rotating inertia of cam and endplay device, make the rotation feed mechanism can reach energy-conservation effect, compact conformation can reduce manufacturing cost and maintenance cost.The utility model is given mechanism and is adopted gear drive and clutch configuration, transmits steel pipe and revolution steel pipe by two screw mandrels and axle sleeve, and transmission is convenient.

Description of drawings

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

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of the utility model feed mechanism.

Wherein: 1-belt pulley, 2-lathe bed, 3-driving shaft, 4-driving gear, 5-reduction gearing, the 6-main shaft, 7-cam, 8-lever, rocking bar before the 9-front rod, 10-, the 11-rocker shaft, 12-pull bar, 13-back link, 14-first bevel gear, fork behind the 15-, the 16-ratchet, 17-power transmission shaft, 18-ratchet, 19-first screw mandrel, 20-second screw mandrel, 21-second bevel gear, 22-first travelling gear, 23-pass gear, 24-axle sleeve eventually, the 25-clutch, 26-second travelling gear, 27-bearing, 28-bearing block.

The specific embodiment

See shown in Fig. 1,2 that the steel pipe of the utility model pipe mill rotation feed mechanism comprises lathe bed 2 and transmission mechanism, one-way clutch and feed mechanism.See shown in Figure 1, transmission mechanism of the present utility model comprises cam 7 and the endplay device of installing on the main shaft 6, reduction gearing 5 is installed on the main shaft 6, reduction gearing 5 and driving gear 4 engagements that are installed on the driving shaft 3, and driving shaft 3 is connected with belt pulley 1, by motor power is reached on the main shaft 6, under the drive of power, make cam 7 rotations.See shown in Figure 1, endplay device of the present utility model comprises lever 8 and the preceding rocking bar 10 that is hinged on front rod 9 both sides, be hinged on pull bar 12 and the back fork 15 and the rocker shaft 11 of back link 13 both sides, preceding rocking bar 10 and pull bar 12 are separately fixed at the both sides of rocker shaft 11, angle is at 90 ± 10 ° between the axial line of preceding rocking bar 10 and the axial line of pull bar 12, lever 8 is hinged on the lathe bed 2, the spill arm and the cam 7 of lever 8 one sides join, for reducing the resistance of motion and wearing and tearing, the end of lever 8 spill arms is equipped with roller, cam 7 joins with roller, by rotatablely moving of cam 7 lever 8 is swung from driving endplay device moves along the central axis of its jointed shaft, rocker shaft 11 of the present utility model is installed on the lathe bed 2, pull bar 12 before being fixedly connected on the rocking bar 10 is positioned at the outside of lathe bed 2, make back link 13 and back fork 15 be arranged on the outside of lathe bed 2, these back link 13 rear portions also are equipped with spring, the rear portion of spring is installed on the fork 15 of back, to play cushioning effect, on the back fork 15 one-way clutch is installed, and the power transmission shaft 17 that is installed on the lathe bed 2 is connected with one-way clutch, this one-way clutch can adopt freewheel clutch or ratchet and pawl arrangement, see shown in Figure 1, the ratchet 16 of this ratchet and pawl arrangement is fixedlyed connected with power transmission shaft 17, withstanding on the ratchet 16 of ratchet 18 after being hinged on the fork 15, gap output by one-way clutch control power is equipped with first bevel gear 14 on the power transmission shaft 17.See shown in Figure 2, feed mechanism of the present utility model comprises to be installed on the lathe bed 2 and first screw mandrel 19 of axis parallel, second screw mandrel 20 and axle sleeve 24, the two ends of first screw mandrel 19 and second screw mandrel 20 are connected on the lathe bed 2 by bearing 27 and bearing block 28 respectively, second bevel gear 21 is installed on first screw mandrel 19 and with first bevel gear 14 and meshes, first screw mandrel 19 and second screw mandrel 20 are separately installed with first travelling gear 22 and second travelling gear 26, first travelling gear 22 and second travelling gear 26 mesh with the gear 23 that passes eventually that is sleeved on the axle sleeve 24, clutch 25 slides on axle sleeve 24 splines or moves axially, clutch 25 engages with whole biography gear 23 or separates, output or joint cut off power, this clutch 25 adopts jaw clutch, and pass gear 23 end faces eventually overhanging plural claw is arranged, match with annular slot on the clutch 25, when clutch 25 and pass eventually gear 23 and engage, power reaches on second screw mandrel 20 and the axle sleeve 24 simultaneously by first screw mandrel 19.

See Fig. 1 back link 13 and between spring is installed, " safety spring " is installed on long connecting rod, can make the strength running on demand of stuck screw mandrel or axle center, thereby produce safety effect.And back link is provided with and can makes the strength running on demand of stuck screw mandrel or axle center, thereby produces safety effect.The eccentric adjusting hole can make the stroke that feeds be changed to your needed movement travel.

Claims

1. the steel pipe of a pipe mill rotates feed mechanism, it is characterized in that: comprise lathe bed (2) and transmission mechanism, one-way clutch and feed mechanism, described transmission mechanism comprises cam (7) and the endplay device of installing on the main shaft (6), endplay device comprises lever (8) and the preceding rocking bar (10) that is hinged on front rod (9) both sides, be hinged on pull bar (12) and the back fork (15) and the rocker shaft (11) of back link (13) both sides, preceding rocking bar (10) and pull bar (12) are separately fixed at the both sides of rocker shaft (11), and the spill arm and the cam (7) that are hinged on lever (8) one sides on the lathe bed (2) join; One-way clutch after described being installed on the fork (15) is connected with the power transmission shaft (17) on being installed in lathe bed (2), and on the power transmission shaft (17) first bevel gear (14) is installed; Described feed mechanism comprises to be installed on the lathe bed (2) and first screw mandrel (19), second screw mandrel (20) and axle sleeve (24) axis parallel, second bevel gear (21) is installed in first screw mandrel (19) and goes up and mesh with first bevel gear (14), first travelling gear (22) and second travelling gear (26) that are installed in respectively on first screw mandrel (19) and second screw mandrel (20) mesh with the gear (23) that passes eventually that is sleeved on the axle sleeve (24), clutch (25) slides on axle sleeve (24) spline, and clutch (25) engages with whole biography gear (23) or separates.

2. the steel pipe of pipe mill according to claim 1 rotates feed mechanism, it is characterized in that: described one-way clutch is a ratchet and pawl arrangement, ratchet (16) is fixedlyed connected with power transmission shaft (17), and the ratchet (18) that is hinged on the back fork (15) withstands on the ratchet (16).

3. the steel pipe of pipe mill according to claim 1 rotates feed mechanism, it is characterized in that: angle is at 90 ± 10 ° between the axial line of described preceding rocking bar (10) and the axial line of pull bar (12).

4. the steel pipe of pipe mill according to claim 1 rotates feed mechanism, and it is characterized in that: described clutch (25) is a jaw clutch, and passing gear (23) end face eventually has overhanging plural claw.

5. the steel pipe of pipe mill according to claim 1 rotates feed mechanism, and it is characterized in that: described back link (13) rear portion also is equipped with spring, and the rear portion of spring is installed on the back fork (15).

6. the steel pipe of pipe mill according to claim 1 rotates feed mechanism, and it is characterized in that: the end of described lever (8) spill arm is equipped with roller, and cam (7) joins with roller.