CN102241151A

CN102241151A - Screw press

Info

Publication number: CN102241151A
Application number: CN2011101071335A
Authority: CN
Inventors: 赵婷婷
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2011-04-27
Filing date: 2011-04-27
Publication date: 2011-11-16

Abstract

The invention provides a screw press which comprises an upper cross beam, a lower cross beam, nuts, a brake, a screw rod, a slide block, a driving mechanism, a motor and upright posts vertically connected between the upper cross beam and the lower cross beam; the nuts are fixed on the upper cross beam and are in threaded connection with the screw rod; the slide block is arranged at the bottom of the screw rod; and the motor is connected with the screw rod through the driving mechanism. The screw press is characterized in that a support mechanism is additionally arranged on the upper cross beam; the driving mechanism comprises a small belt pulley, a large belt pulley, a belt, and an inner sleeve and an outer sleeve which are in spline connection; external convex straight teeth are respectively and uniformly arranged on the outer wall of the inner sleeve and the inner wall of the outer sleeve, wherein the shape and the quantity of the external convex straight teeth on the outer wall of the inner sleeve and the shape and the quantity of the external convex straight teeth on the inner wall of the outer sleeve are completely the same; the inner sleeve is sleeved at the upper end of the screw rod through a key; the motor is arranged on the upper cross beam; the output end of the motor is fixedly connected with the small belt pulley; the large belt pulley is connected with the outer sleeve through a key; and the lower end of the outer sleeve is arranged on the support mechanism through a bearing. The inner sleeve and the outer sleeve are linearly contacted through the outer convex straight teeth, thus the screw press has small friction force, long service life and excellent work performance.

Description

Fly press

Technical field

The invention provides a kind of fly press, belong to the mechanical industry equipment technical field.

Background technology

Mostly existing fly press is friction press, and the subject matter of existence is to rely on manpower or pneumatic mobile transverse axis control frictional disk transferring power, and friction loss is big, and energy consumption is big, and hitting power control is inaccurate, and the product qualification rate is low, the labour intensity height, and maintenance capacity is big.Friction press transform motor-driven fly press as, has energy-conservation, numerical control, advantage that product quality is high.The patent No. is 200620081609.7 numerical control slide block device, illustrated that wherein the motion of slide block can be implemented the slide block numerical control by the spline transmission by motor, but existing spline is big because of contact area, and frictional force is big, causes equipment energy consumption big, and equipment dependability is poor.

Summary of the invention

The purpose of this invention is to provide a kind ofly can overcome above-mentioned defective, friction is little, energy consumption is little, equipment life is long fly press.Its technical scheme is:

A kind of fly press, comprise entablature, sill, nut, brake, screw rod, slide block, transmission mechanism, motor and be vertically connected at entablature and sill between column, wherein nut is fixed on the entablature and with screw flight and is connected, the bottom of screw rod is provided with slide block, motor is by the transmission mechanism connecting screw rod, it is characterized in that: on entablature, set up supporting mechanism, transmission mechanism comprises small pulley, big belt wheel, belt, interior cover and overcoat that spline connects, the outer wall of cover wherein, all be evenly equipped with the identical evagination straight-tooth of shape and quantity on the inwall of overcoat, interior cover is sleeved on the upper end of screw rod through key, motor is installed on the entablature, the output of motor is fixedlyed connected with small pulley, big belt wheel connects overcoat through key, and the lower end of overcoat is installed on the supporting mechanism through bearing.

Described fly press, brake is installed on the entablature through support, and the piece of holding tightly of brake is looped around on the big belt wheel.

Described fly press, the top of interior cover and screw rod is provided with pressing plate, and pressing plate is fixedlyed connected with screw rod.

Described fly press, supporting mechanism comprises connecting plate, base and cover plate, wherein the connecting plate gap is sleeved on the screw rod and through clamp nut and is fixedly mounted on the entablature, the base gap is sleeved on the screw rod and is fixedly mounted on the connecting plate, the base and the screw coaxial heart, the lower end of overcoat is installed on the base through bearing, and the top of base is fixed with cover plate, and bearing is encapsulated in the cavity of cover plate, base and overcoat formation.

Described fly press, the flank profil of evagination straight-tooth is an involute, or circular arc line, interior cover and the evagination straight-tooth that puts outward are meshing with each other into line and contact and be slidingly matched; Motor adopts switched reluctance machines.

Its operation principle is: the output shaft of motor drives the overcoat that is supported on the supporting mechanism and rotates through small pulley, big belt wheel, overcoat is connected with interior cover spline, interior cover is connected through key with screw rod, screw pair transmission by screw rod and nut like this, make screw rod overlap the motion of spinning in reaching, and then the drive slide block is done rectilinear motion up and down.

The present invention compared with prior art, its advantage is:

1, because transmission mechanism is adopted splined interior cover and overcoat, and all be evenly equipped with the identical evagination straight-tooth of shape and quantity on the outer wall of interior cover, the inwall of overcoat, so interior cover is to have realized that through the evagination straight-tooth both lines contact with overcoat, frictional force is little, reduce frictional dissipation, prolonged service life of equipment.

2, motor drives overcoat through belt transmission structure and rotates torque increasing, rotating speed reduction, the effectively speed of service of adjusting slider.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention.

Fig. 2 be embodiment illustrated in fig. 1 in the A-A profile of cover, overcoat and screw rod.

Among the figure: 1, entablature 2, sill 3, nut 4, brake 5, screw rod 6, slide block 7, motor 8, column 9, small pulley 10, big belt wheel 11, belt 12, interior cover 13, overcoat 14, evagination straight-tooth 15, key 16, bearing 17, support 18, pressing plate 19, connecting plate 20, base 21, cover plate 22, clamp nut

The specific embodiment

In the embodiment shown in Fig. 1-2: column 8 is vertically connected between entablature 1 and the sill 2, and nut 3 is fixed on the entablature 1 and with screw rod 5 and is threaded, and the bottom of screw rod 5 is provided with slide block 6; Transmission mechanism comprises interior cover 12 and the overcoat 13 that small pulley 9, big belt wheel 10, belt, spline connect, all be evenly equipped with shape and the identical evagination straight-tooth 14 of quantity on the inwall of the outer wall of cover 12, overcoat 13 wherein, the flank profil of evagination straight-tooth 14 is involutes, and interior cover 12 and evagination straight-tooth 14 on the overcoat 13 are meshing with each other into line and contact and be slidingly matched; Interior cover 12 is sleeved on the upper end of screw rod 5 through keys 15, the top of interior cover 12 and screw rod 5 is provided with pressing plate 18, pressing plate 18 is fixedlyed connected with screw rod 5, motor 7 adopts switched reluctance machines, be installed on the entablature 1, the output of motor 7 is fixedlyed connected with small pulley 9, and big belt wheel 10 connects overcoat 13 through key 15, and the lower end of overcoat 13 is installed on the supporting mechanism through bearing 16; Supporting mechanism comprises connecting plate 19, base 20 and cover plate 21, wherein connecting plate 19 gaps are sleeved on the screw rod 5 and through clamp nut 22 and are fixedly mounted on the entablature 1, base 20 gaps are sleeved on the screw rod 5 and are fixedly mounted on the connecting plate 19, base 20 and screw rod 5 concentrics, the lower end of overcoat 13 is installed on the base 20 through bearing 16, the top of base 20 is fixed with cover plate 21, and bearing 16 is encapsulated in the cavity of cover plate 21, base 20 and overcoat 13 formations; Brake 4 is installed on the entablature 1 through support 17, and the piece of holding tightly of brake 4 is looped around on the big belt wheel 10.During braking, hold piece tightly and hold big belt wheel 10 tightly.

Claims

1. fly press, comprise entablature (1), sill (2), nut (3), brake (4), screw rod (5), slide block (6), transmission mechanism, motor (7) and be vertically connected at entablature (1) and sill (2) between column (8), wherein nut (3) is fixed on the entablature (1) and with screw rod (5) and is threaded, the bottom of screw rod (5) is provided with slide block (6), motor (7) is by transmission mechanism connecting screw rod (5), it is characterized in that: on entablature (1), set up supporting mechanism, transmission mechanism comprises small pulley (9), big belt wheel (10), belt, interior cover (12) and overcoat (13) that spline connects, the outer wall of cover (12) wherein, all be evenly equipped with the identical evagination straight-tooth of shape and quantity (14) on the inwall of overcoat (13), interior cover (12) is sleeved on the upper end of screw rod (5) through keys (15), motor (7) is installed on the entablature (1), the output of motor (7) is fixedlyed connected with small pulley (9), big belt wheel (10) connects overcoat (13) through key (15), and the lower end of overcoat (13) is installed on the supporting mechanism through bearing (16).

2. fly press as claimed in claim 1 is characterized in that: brake (4) is installed on the entablature (1) through support (17), and the piece of holding tightly of brake (4) is looped around on the big belt wheel (10).

3. fly press as claimed in claim 1 is characterized in that: the top of interior cover (12) and screw rod (5) is provided with pressing plate (18), and pressing plate (18) is fixedlyed connected with screw rod (5).

4. fly press as claimed in claim 1, it is characterized in that: supporting mechanism comprises connecting plate (19), base (20) and cover plate (21), wherein connecting plate (19) gap is sleeved on the screw rod (5), and be fixedly mounted on the entablature (1) through clamp nut (22), base (20) gap is sleeved on the screw rod (5), and be fixedly mounted on the connecting plate (19), base (20) and screw rod (5) concentric, the lower end of overcoat (13) is installed on the base (20) through bearing (16), the top of base (20) is fixed with cover plate (21), and bearing (16) is encapsulated in cover plate (21), in the cavity that base (20) and overcoat (13) constitute.

5. fly press as claimed in claim 1 is characterized in that: the flank profil of evagination straight-tooth (14) is an involute, or circular arc line, and interior cover (12) and evagination straight-tooth (14) on the overcoat (13) are meshing with each other into line and contact and be slidingly matched.

6. fly press as claimed in claim 1 is characterized in that: motor (7) adopts switched reluctance machines.