CN212372781U

CN212372781U - High-energy screw press

Info

Publication number: CN212372781U
Application number: CN202021470802.6U
Authority: CN
Inventors: 贾元友; 张雪凝
Original assignee: Qingdao Haoyuan Yiyou Forging Machinery Co Ltd
Current assignee: Qingdao Haoyuan Yiyou Forging Machinery Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-01-19
Anticipated expiration: 2030-07-23

Abstract

A high-energy screw press comprises a machine body, a circular guide rail blocking cover, a spherical bearing seat, a screw, a bearing fixing inner body, a thrust ball bearing, a convex blocking cover, an O-shaped sealing ring, a bearing outer body, a lower sealing ring blocking cover, a deep groove ball bearing blocking cover, a main motor, a driving belt wheel, a driven belt wheel type flywheel, a multilayer positioning plate, a roller bearing seat, a pushing self-aligning roller bearing, an inner sealing ring, a friction clutch disc, a friction block, a pneumatic conical clutch piston, a conical cylinder body, a guide screw rod, a cylinder body fastening nut, an upper adjusting bolt, a lower adjusting bolt, a back fastening nut, a copper nut, a top surface baffle, a sliding block, a lifting frame, a lifting rod. The invention has the advantages of high output energy, small transmission power, power saving, obvious energy saving, quick return stroke, high production efficiency, strong unbalance loading resistance, multi-station die forging, environmental protection, long service life and capability of ensuring the safety of the whole machine. The method can be widely applied to the pressure forming process of the forge piece.

Description

High-energy screw press

Technical Field

The invention relates to a high-energy screw press which can be widely applied to a pressure forming process of a forge piece.

Background

According to the traditional screw press, a screw rod and a driven belt wheel type flywheel are connected together all the time, when a sliding block moves downwards, the driven belt wheel type flywheel and the screw rod accelerate together, and reverse rotation is carried out together during rotation, so that the accelerating mass is large, and the stroke is limited. Further, since the rotating mass of the driven pulley flywheel and the screw is accelerated twice from the stationary state every time the stroke is performed, the energy consumption is large. The friction loss of the driven belt wheel type flywheel and the friction clutch disc can account for 60 percent of the output power of the motor, so that the transmission efficiency is only 10 to 15 percent.

Disclosure of Invention

The invention aims to provide a high-energy screw press which has the advantages of small transmission power, power saving, obvious energy saving, quick return stroke, high production efficiency, strong unbalance loading resistance, multi-station die forging, environmental protection, long service life and capability of ensuring the safety of the whole press.

In order to achieve the above object, the high-energy screw press of the present invention comprises a body provided with an X-shaped guide rail, a circular guide rail fixedly mounted on an inner hole of the body by interference fit, a circular guide rail blocking cover for blocking the circular guide rail and mounted on the body, a spherical bearing seat mounted on a beam of the body, a screw rod passing through a beam hole of the body and having a spherical surface and coming into contact with the spherical bearing seat in a fitting manner, a stepped annular bearing fixing inner body passing through the screw rod and mounted on a top surface of the beam of the body by a fastening bolt, a thrust ball bearing passing through the stepped annular bearing fixing inner body and mounted on the top surface of the beam of the body, a convex blocking cover located outside the thrust ball bearing and mounted on the top surface of the beam of the body by a fastening member, an O-shaped seal ring located between the convex blocking cover and the beam, a lower sealing ring which is arranged between the convex baffle cover and the outer body of the step type annular bearing and is arranged on the shoulder of the convex baffle cover, a lower sealing ring baffle cover which is arranged on the convex baffle cover, a deep groove ball bearing which is arranged between the fixed inner body of the step type annular bearing and the outer body of the step type annular bearing and is arranged on the shoulder of the outer body of the step type annular bearing, a step type deep groove ball bearing baffle cover which is arranged on the top surface of the outer body of the step type annular bearing through a fastening bolt, a main motor which is vertically arranged on the side surface of a machine body, a driving pulley which is arranged on the output shaft of the main motor, a driven pulley type flywheel which is driven through belt type transmission, a multilayer positioning plate which is arranged in the annular groove formed between the outer body of the step type annular bearing and the baffle cover of the step type deep groove ball bearing and is fixed in the step, a pushing self-aligning roller bearing which is arranged between the driven pulley type flywheel and the pushing self-aligning roller bearing seat and is arranged on the pushing self-aligning roller bearing seat, an inner sealing ring which is arranged between the pushing self-aligning roller bearing seat and the driven pulley type flywheel and is arranged on the pushing self-aligning roller bearing seat, a friction clutch disc which is arranged on the pushing self-aligning roller bearing and is connected with a spline through a screw top end fastening nut and arranged at the upper end part of a screw, a friction block which is arranged in a friction clutch disc hole and is contacted with the surface of the driven pulley type flywheel, a pneumatic conical clutch piston which is arranged on the top surface of the friction block, a conical cylinder body which is arranged above the pneumatic conical clutch piston and is provided with a pneumatic conical clutch piston moving gap between the pneumatic conical clutch piston and the conical cylinder body, the pneumatic conical clutch piston and a guide screw which is arranged on the driven pulley, a cylinder fastening nut which fastens a conical cylinder body on a guide screw rod, a pneumatic conical clutch piston can move up and down along the guide screw rod, a piston reset spring arranged on a driven belt wheel type flywheel, a conical cylinder body up-and-down adjusting bolt which passes through the conical cylinder body and the pneumatic conical clutch piston and is arranged on the driven belt wheel type flywheel through lower end thread connection, a back nut which fastens the conical cylinder body on the conical cylinder body up-and-down adjusting bolt, a copper nut which is connected with the screw rod through a screw and is arranged at the lower end part of the screw rod, a top baffle which is positioned on the shoulder of the copper nut and is arranged on the top surface of a slide block and is used for preventing the copper nut from separating out, a slide block which is fixedly connected with the copper nut in an interference fit way and moves up and down along a circular guide rail and an X-shaped, and the upper sealing ring is positioned between the stepped deep groove ball bearing retaining cover and the pushing aligning roller bearing seat and is arranged on the stepped deep groove ball bearing retaining cover.

The invention relates to a high-energy screw press, wherein a pneumatic conical clutch piston, a friction clutch disc and a friction block form a pneumatic clutch.

The working principle of the high-energy screw press is as follows: the main motor drives the driven belt wheel type flywheel to rotate along one direction all the time through belt transmission, air enters through the upper portion of the conical cylinder body, the resistance of a piston return spring is overcome, a pneumatic conical clutch piston is pushed to move downwards to press the friction block, the friction clutch disc is connected with the driven belt wheel type flywheel in a closed mode through compression deformation of the friction block, the pneumatic clutch is connected, the driven belt wheel type flywheel and the screw rod move integrally, and the driven belt wheel type flywheel drives the screw rod to rotate. Then, the screw rod is in transmission with the nut screw pair in the sliding block to drive the sliding block to move downwards linearly so as to forge and strike. After striking, the upper part of the conical cylinder body is exhausted, the pneumatic conical clutch piston moves upwards to reset under the action of the elastic force of the piston reset spring, the pneumatic conical clutch piston is disengaged from the friction block, at the moment, the pneumatic clutch is disengaged, and the driven belt wheel type flywheel and the screw rod are disengaged and move independently. Under the action of the return lifting cylinders of the sliding blocks on the two sides, the sliding blocks quickly return to the upper limit position to complete a working cycle.

The high-energy screw press has no fixed bottom dead center, and is generally mechanically limited by arranging a limit block on a forging die, and the non-flash forging is ensured by filling a groove. Once the preselected torque is reached, the clutch is controlled to immediately disengage the screw from the driven pulley flywheel which continues to rotate, and the slider return stroke lift cylinder lifts the slider to the home position. On the return stroke, the elastic deformation of the body contributes to the completion of this process, since the spring back force acts only on the small mass of the disengagement member of the slide, screw and friction clutch, unlike a conventional screw friction press acting on a flywheel of large mass. The moment of inertia of the disengaging member is only about 1% of the moment of inertia of the driven pulley flywheel, thereby enabling the slide to be rapidly returned to its original position from the bottom dead center.

The high-energy screw press is sensitive and reliable in stroke control because the driven belt wheel type flywheel rotates at a sufficient rotating speed and the accelerating mass of the screw, the slide block and the friction clutch disc is small, and the accelerating process only accounts for 5% of the full stroke of the slide block, unlike the traditional screw press which needs to adjust the speed in advance due to different energy release, and almost occupies the whole stroke.

The driven belt wheel type flywheel has the functions of storing and releasing energy, and when the driven belt wheel type flywheel and the friction clutch disc are hit downwards, the driven belt wheel type flywheel and the friction clutch disc simultaneously act on a forge piece, so that the total inertia of the driven belt wheel type flywheel and the friction clutch disc is large, the output energy is high, and the driven belt wheel type flywheel and the friction clutch disc are called as high energy. Can provide larger energy, which is three times of that of the traditional friction screw press with the same specification. The press is particularly suitable for extrusion processes, since the shaping can be carried out in a few or even one step, as long as shaping is technically possible.

Compared with the traditional screw press, the high-energy screw press has the advantages that the transmission device does not need to be accelerated from a static state, and the motor can run in a favorable range under the condition of small fluctuation of the rotating speed. Therefore, high load current peak value impact on a factory power grid can not be generated, and the service life of the motor can not be influenced. Therefore, the motor has small transmission power, saves power and obviously saves energy.

According to the high-energy screw press, during return stroke, because the driven pulley type flywheel is disengaged, the lifting weight of the slide block during return stroke is greatly reduced, and only the friction clutch disc, the screw rod, the slide block and the upper die with light weight are used, so that the lifting weight of the driven pulley type flywheel is saved, therefore, the return stroke component is light in weight, easy to lift, quick in return stroke, high in production efficiency, power-saving and energy-saving.

According to the high-energy screw press, the stroke and the stroke position of the slide block can be freely selected, after the slide block is accelerated for a very short time, the press can exert the maximum pressure at any point of other strokes, the stroke can be reduced to the minimum as long as the operation is not influenced, and the stroke frequency is improved to the maximum extent, so that the production efficiency is improved. Similar to the forging hammer, the dies with different heights can be arranged without adjusting the height of the die. Thus, the freedom of choice of stroke position is highly advantageous in accomplishing various forging processes.

According to the high-energy screw press, the sliding block moves up and down along the circular guide rail and the X-shaped guide rail of the press body, the unbalance loading resistance is high under the action of the double guide rails, and multi-station die forging can be realized.

According to the high-energy screw press, all bearings are sealed in a closed space through the sealing parts and the related structures, so that external dust is prevented from entering, the bearing lubricating oil is pollution-free and environment-friendly, and the service life of the bearings is long.

The high-energy screw press has the advantages that the inertia of the friction clutch disc is small, the engaging time of the pneumatic clutch and the friction clutch disc is short, the friction heating is light, the service life of the friction block is greatly prolonged, and the service life of the friction block is long.

The high-energy screw press has the advantages that the rotating speed of the driven pulley type flywheel is reduced to be less than or equal to 15 percent, and the driven pulley type flywheel passes through a metal deformation area at a higher speed. The striking speed is high, the mechanical stress and the thermal contact time of the die are reduced, and the service life of the die is long. And because the forming speed is high, the surface of the workpiece in the groove is cooled less and the flash temperature is high, the forging force required by the forge piece is small.

The pneumatic clutch of the high-energy screw press can slip under the maximum load, and plays a role of overload safety, thereby ensuring the safety of the whole press.

In conclusion, the invention has the advantages of high output energy, small transmission power, power saving, obvious energy saving, quick return stroke, high production efficiency, strong unbalance loading resistance, multi-station die forging, environmental protection, long service life and capability of ensuring the safety of the whole machine.

Drawings

The invention will be further described with reference to the accompanying drawings and examples thereof.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of the portion I of fig. 1.

Detailed Description

In fig. 1 and 2, the high-energy screw press of the present invention comprises a body 1 provided with an X-shaped guide rail 38, a circular guide rail 2 fixedly mounted on an inner hole of the body by interference fit, a circular guide rail blocking cover 3 for blocking the circular guide rail and mounted on the body, a spherical bearing seat 4 mounted on a beam of the body, a screw 5 passing through a beam hole of the body and having a spherical surface and coming into contact with the spherical bearing seat, a stepped annular bearing fixing inner body 6 passing through the screw and mounted on a top surface of the beam of the body by a fastening bolt 39, a thrust ball bearing 7 passing through the stepped annular bearing fixing inner body and mounted on the top surface of the beam of the body, a convex blocking cover 8 located outside the thrust ball bearing and mounted on the top surface of the beam of the body by a fastening member, an O-ring seal 9 located between the convex blocking cover and the beam hole of the body and mounted on the convex blocking cover, a lower seal ring 11 positioned between the convex block cover and the outer body of the stepped annular bearing and mounted on the shoulder of the convex block cover, a lower seal ring block cover 12 mounted on the convex block cover, a deep groove ball bearing 13 positioned between the fixed inner body of the stepped annular bearing and the outer body of the stepped annular bearing and mounted on the shoulder of the outer body of the stepped annular bearing, a stepped deep groove ball bearing block cover 14 mounted on the top surface of the outer body of the stepped annular bearing through fastening bolts, a main motor 15 vertically mounted on the side surface of the machine body, a driving pulley 16 mounted on the output shaft of the main motor, a driven pulley type flywheel 17 driven by belt transmission, a multilayer positioning plate 18 mounted and fixed in the step hole of the driven pulley type flywheel in the annular groove formed between the outer body of the stepped annular bearing and the block cover of the stepped deep groove ball bearing, a push self-aligning roller bearing seat 19 mounted on the fixed inner body of the stepped annular bearing through the, a push aligning roller bearing 20 which is arranged between the driven pulley type flywheel and the push aligning roller bearing seat and is arranged on the push aligning roller bearing seat, an inner sealing ring 21 which is arranged between the push aligning roller bearing seat and the driven pulley type flywheel and is arranged on the push aligning roller bearing seat, a friction clutch disc 22 which is arranged on the push aligning roller bearing and is connected with a spline through a screw top end fastening nut 40 and is arranged at the upper end part of the screw, a friction block 23 which is arranged in a friction clutch disc hole and is contacted with the driven pulley type flywheel surface, a pneumatic conical clutch piston 24 which is arranged on the top surface of the friction block, a conical cylinder body 25 which is arranged above the pneumatic conical clutch piston and is provided with a moving clearance of the pneumatic conical clutch piston between the conical cylinder body and the pneumatic conical clutch piston and is arranged on the driven pulley type flywheel through a lower end thread fastening A screw 26, a cylinder fastening nut 27 for fastening the conical cylinder on the guide screw and allowing the pneumatic conical clutch piston to move up and down along the guide screw, a piston return spring 28 installed on the driven pulley-type flywheel, a conical cylinder up-and-down adjusting bolt 29 passing through the conical cylinder and the pneumatic conical clutch piston and installed on the driven pulley-type flywheel through a lower end screw thread connection, a back nut 30 for fastening the conical cylinder on the conical cylinder up-and-down adjusting bolt, a copper nut 31 spirally connected with the screw and installed at the lower end of the screw, a top baffle 32 located on the shoulder of the copper nut and installed on the top of the slider for blocking the copper nut from coming off, a slider 33 fixedly connected with the copper nut in an interference fit manner and moving up and down along the circular guide rail and the X-shaped guide rail of the body, a lifting frame 34 installed on the side of the slider, a slide block return lifting cylinder 36 with a piston rod connected with the lifting rod, and an upper sealing ring 37 which is positioned between the step type deep groove ball bearing blocking cover and the pushing aligning roller bearing seat and is installed on the step type deep groove ball bearing blocking cover.

In view of the foregoing, while the preferred embodiments of the present invention have been described, it is to be understood that the invention is not limited to the precise embodiments described above, and that equipment and structures not described in detail are understood to be practiced in a manner that is conventional in the art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made without departing from the technical scope of the present invention, and still fall within the protection scope of the technical solution of the present invention.

Claims

1. A high-energy screw press is characterized by comprising a machine body provided with an X-shaped guide rail, a circular guide rail fixedly arranged on an inner hole of the machine body through interference fit, a circular guide rail blocking cover used for blocking the circular guide rail and arranged on the machine body, a spherical bearing seat arranged on a cross beam of the machine body, a screw rod which penetrates through a cross beam hole of the machine body and is provided with a spherical surface and is in fit contact with the spherical bearing seat, a stepped annular bearing fixing inner body which penetrates through the screw rod and is arranged on the top surface of the cross beam of the machine body through a fastening bolt, a thrust ball bearing which penetrates through the stepped annular bearing fixing inner body and is arranged on the top surface of the cross beam of the machine body, a convex blocking cover which is positioned outside the thrust ball bearing and is arranged on the top surface of the cross beam of the machine body through a fastening piece, an O-, a lower sealing ring which is arranged between the convex baffle cover and the outer body of the step type annular bearing and is arranged on the shoulder of the convex baffle cover, a lower sealing ring baffle cover which is arranged on the convex baffle cover, a deep groove ball bearing which is arranged between the fixed inner body of the step type annular bearing and the outer body of the step type annular bearing and is arranged on the shoulder of the outer body of the step type annular bearing, a step type deep groove ball bearing baffle cover which is arranged on the top surface of the outer body of the step type annular bearing through a fastening bolt, a main motor which is vertically arranged on the side surface of a machine body, a driving pulley which is arranged on the output shaft of the main motor, a driven pulley type flywheel which is driven through belt type transmission, a multilayer positioning plate which is arranged in the annular groove formed between the outer body of the step type annular bearing and the baffle cover of the step type deep groove ball bearing and is fixed in the step, a pushing self-aligning roller bearing which is arranged between the driven pulley type flywheel and the pushing self-aligning roller bearing seat and is arranged on the pushing self-aligning roller bearing seat, an inner sealing ring which is arranged between the pushing self-aligning roller bearing seat and the driven pulley type flywheel and is arranged on the pushing self-aligning roller bearing seat, a friction clutch disc which is arranged on the pushing self-aligning roller bearing and is connected with a spline through a screw top end fastening nut and arranged at the upper end part of a screw, a friction block which is arranged in a friction clutch disc hole and is contacted with the surface of the driven pulley type flywheel, a pneumatic conical clutch piston which is arranged on the top surface of the friction block, a conical cylinder body which is arranged above the pneumatic conical clutch piston and is provided with a pneumatic conical clutch piston moving gap between the pneumatic conical clutch piston and the conical cylinder body, the pneumatic conical clutch piston and a guide screw which is arranged on the driven pulley, a cylinder fastening nut which fastens a conical cylinder body on a guide screw rod, a pneumatic conical clutch piston can move up and down along the guide screw rod, a piston reset spring arranged on a driven belt wheel type flywheel, a conical cylinder body up-and-down adjusting bolt which passes through the conical cylinder body and the pneumatic conical clutch piston and is arranged on the driven belt wheel type flywheel through lower end thread connection, a back nut which fastens the conical cylinder body on the conical cylinder body up-and-down adjusting bolt, a copper nut which is connected with the screw rod through a screw and is arranged at the lower end part of the screw rod, a top baffle which is positioned on the shoulder of the copper nut and is arranged on the top surface of a slide block and is used for preventing the copper nut from separating out, a slide block which is fixedly connected with the copper nut in an interference fit way and moves up and down along a circular guide rail and an X-shaped, and the upper sealing ring is positioned between the stepped deep groove ball bearing retaining cover and the pushing aligning roller bearing seat and is arranged on the stepped deep groove ball bearing retaining cover.

2. The high energy screw press of claim 1, wherein the pneumatic conical clutch piston, the friction clutch disk and the friction block form a pneumatic clutch.