CN102990975A

CN102990975A - Press

Info

Publication number: CN102990975A
Application number: CN201210294423XA
Authority: CN
Inventors: 高尔荣; 沈平
Original assignee: Zhejiang Bolei Heavy Duty Machine Tool Manufacturing Co Ltd
Current assignee: Zhejiang Bolei Heavy Duty Machine Tool Manufacturing Co Ltd
Priority date: 2012-08-17
Filing date: 2012-08-17
Publication date: 2013-03-27

Abstract

The invention discloses a press which comprises a crankshaft; one end of the crankshaft is provided with a brake, and the other end of the crankshaft is provided with a clutch; the clutch comprises a flywheel, a driven shaft sleeve, a driving disc and a shell body which are sleeved on the crankshaft in sequence; the driven shaft sleeve is fixedly connected with the crankshaft; a plurality of mobile friction blocks are inlaid on the outer ring of the driven shaft sleeve; the driving disc is freely sleeved on the crankshaft and is connected with the shell body through a plurality of transmission pins in the way of being fixed in a circumferential direction and moving in an axial direction; a plurality of springs are sleeved on the transmission pins; the driving disc and the shell body are nested and slidably connected through a concave-convex ring structure to form a circular cylinder cavity; the circular cylinder cavity is communicated with a vent hole in the center of the shell body; the circular cylinder cavity is sealed through an inner side seal ring and an outer side seal ring which are arranged between the driving disc and the shell body; and the shell body is arranged on the crankshaft through a bearing B and is fixedly connected with the flywheel. According to the technical scheme, a structural design in which the clutch and the brake are separated is adopted, so that the stress on both ends of the crankshaft is balanced, the transmission precision is improved, and the service life is prolonged.

Description

Forcing press

Technical field

The present invention relates to a kind of forcing press.

Background technology

The punching machine Clutch and brake is arranged at bent axle together near on flywheel one end at present, and patent No. ZL99805307.4 discloses a kind of punching machine clutch brake apparatus; The Clutch and brake of this punching machine clutch brake apparatus joins together and is arranged at bent axle near on flywheel one end, because joining together, Clutch and brake is arranged at bent axle near on flywheel one end, make crankshaft two end be subjected to force unbalance, make crankshaft support spare, lost efficacy easily such as bearing, reduction of service life, and affect the forcing press operating accuracy.When this punching machine clutch brake apparatus is used for high-speed mechanical press machine, its weak point is even more serious, this punching machine clutch brake apparatus adopts the hydraulic cylinder switching mechanism that Clutch and brake is switched, complex structure, and easily produce seepage.And existing clutch exists complex structure, space requirement large (placing outside the flywheel), the large defectives such as (clutch mainly place on the bent axle) of braking inertia.

Summary of the invention

In order to solve above-mentioned technical problem, the purpose of this invention is to provide a kind of forcing press, the structural design that adopts Clutch and brake to separate, clutch adopts pneumatic control, simple in structure, carry-over moment is reliable, and overload operation safety increases flywheel inertia (housing and flywheel rotate simultaneously), compressed air delivery is simple and reliable, the cylinder of the approximate sealing of housing, good airproof performance, the transmitting accuracy and the service life that are conducive to improve clutch.

To achieve the above object, the present invention has adopted following technical scheme:

Forcing press, comprise bent axle, one end of described bent axle is installed brake, the other end of described bent axle is installed clutch, described clutch comprises the flywheel that is set in successively on the bent axle, driven axle sleeve, driving disc spacing pressing and housing, flywheel is installed on the bent axle by bearing A, driven axle sleeve is fixedly connected with bent axle, be inlaid with a plurality of removable brake pads on the outer ring of driven axle sleeve, the driving disc spacing pressing empty set on bent axle and by a plurality of trundles with circumferentially fixing be connected the mode that can move and be connected with housing, be arranged with a plurality of springs that can give the close housing trend of driving disc spacing pressing on the trundle, thereby between driving disc spacing pressing and housing, consist of the ring-type cylinder chamber by nested being slidingly connected of concavo-convex ring structure between driving disc spacing pressing and the housing, this ring-type cylinder chamber is communicated with the passage that is located at the housing center, this ring-type cylinder chamber is by being located at inner seal ring and the outside seal ring seal between driving disc spacing pressing and the housing, and housing is installed on the bent axle and with flywheel by bearing B and is fixedly connected with.

The present invention has been owing to adopted above technical scheme, and the structural design that adopts Clutch and brake to separate makes that crankshaft two end is stressed tends to balance; The clutch volume is little, lightweight, moves more sensitively, in the service life of having improved crankshaft support spare, has improved the operating accuracy of high-speed mechanical press machine; Clutch adopts pneumatic control, simple in structure, carry-over moment is reliable, overload operation safety, increase flywheel inertia (housing and flywheel rotate simultaneously), compressed air delivery is simple and reliable, the cylinder of the approximate sealing of housing, good airproof performance, the transmitting accuracy and the service life that are conducive to improve pneumatic clutch.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation of driven axle sleeve.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is made a detailed explanation.

Embodiment 1:

Forcing press as shown in Figure 1, comprise bent axle 1, one end of described bent axle 1 is installed brake, the other end of described bent axle 1 is installed clutch, described clutch comprises the flywheel 3 that is set in successively on the bent axle 1, driven axle sleeve 6, driving disc spacing pressing 4 and housing 7, flywheel 3 is installed on the bent axle 1 by bearing A2, driven axle sleeve 6 is fixedly connected with bent axle 1, as shown in Figure 2, be inlaid with 6 removable brake pads 5 on the outer ring of driven axle sleeve 6, driving disc spacing pressing 4 empty sets on bent axle 1 and by a plurality of trundles 9 with circumferentially fixing be connected the mode that can move and be connected with housing 7, be arranged with a plurality of springs 10 that can give driving disc spacing pressing 4 close housing 7 trend on the trundle 9, thereby between driving disc spacing pressing 4 and housing 7, consist of the ring-type cylinder chamber by nested being slidingly connected of concavo-convex ring structure between driving disc spacing pressing 4 and the housing 7, this ring-type cylinder chamber is communicated with the passage 71 that is located at housing 7 centers, this ring-type cylinder chamber is by being located at

inner seal ring

11 and 12 sealings of outside sealing ring between driving disc spacing pressing 4 and the housing 7, and housing 7 is installed on the bent axle 1 and with flywheel 3 by bearing B8 and is fixedly connected with.

When the passage 71 obstructed Compressed Gas on the housing 7, thereby owing to the tension force of spring 10 separates near housings 7 driving disc spacing pressing 4 with driven axle sleeve 6, so that the rotary power of flywheel 3 can not be delivered to driven axle sleeve 6.When the passage 71 on the housing 7 passes into Compressed Gas, when compressed air enters the circular cylinder chamber, promotion driving disc spacing pressing 4 overcomes spring force and moves the mobile brake pad 5 of inlaying in the driven axle sleeve 6 of compression, so that between the driving disc spacing pressing 4, driven axle sleeve 6, flywheel 3 threes by mobile brake pad 5 synchronous rotations bonded to each other, thereby realize the transmission of power source.When compressed gas source stops, driving disc spacing pressing 4 retracts by the tension force of housing 7 interior Compress Springs, decontrols the compression to mobile brake pad 5, becomes free separated position between driving disc spacing pressing 4, driven axle sleeve 6, flywheel 3 threes, realizes the disengaging of power source.

Claims

1. forcing press, comprise bent axle (1), it is characterized in that, one end of described bent axle (1) is installed brake, the other end of described bent axle (1) is installed clutch, described clutch comprises the flywheel (3) that is set in successively on the bent axle (1), driven axle sleeve (6), driving disc spacing pressing (4) and housing (7), flywheel (3) is by bearing A(2) be installed on the bent axle (1), driven axle sleeve (6) is fixedly connected with bent axle (1), be inlaid with a plurality of removable brake pads (5) on the outer ring of driven axle sleeve (6), driving disc spacing pressing (4) empty set at bent axle (1) upper and by a plurality of trundles (9) circumferentially to fix and to be connected the mode that can move and to be connected with housing (7), be arranged with a plurality of springs (10) that can give close housing (7) trend of driving disc spacing pressing (4) on the trundle (9), driving disc spacing pressing (4) with housing (7) thus between consist of the ring-type cylinder chamber by nested be slidingly connected between driving disc spacing pressing (4) and housing (7) of concavo-convex ring structure, this ring-type cylinder chamber is communicated with the passage (71) that is located at housing (7) center, this ring-type cylinder chamber is by being located at the sealing of inner seal ring (11) between driving disc spacing pressing (4) and the housing (7) and outside sealing ring (12), and housing (7) is by bearing B(8) be installed in bent axle (1) and go up and be fixedly connected with flywheel (3).