CN211852797U

CN211852797U - Movable end cover structure of balancer

Info

Publication number: CN211852797U
Application number: CN202020470780.7U
Authority: CN
Inventors: 谷海军; 张亚东; 郑炜嘉; 杨贤辉; 王春雷; 刘鹏
Original assignee: Zhejiang Yiduan Precision Machinery Co ltd
Current assignee: Zhejiang Yiduan Precision Machinery Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-11-03
Anticipated expiration: 2030-04-02

Abstract

The utility model provides a pair of balancer activity end cover structure includes pull rod body, lower end cap, activity sealing ring and activity dust ring, the lower end cap the activity sealing ring and activity dust ring overlaps in proper order and locates the surface of pull rod body, be equipped with the seal groove on the lower end cap, the activity sealing ring install in the seal groove, the activity sealing ring can be right lower end cap department carries out sealing operation, be equipped with first bolt on the activity dust ring, first bolt fixed connection the activity sealing ring and the activity dust ring, from this the activity dust ring can be fixed in on the activity sealing ring, the activity dust ring can be right lower end cap department carries out dustproof operation for whole device not only can carry out dustproof operation, also can realize sealing operation.

Description

Movable end cover structure of balancer

Technical Field

The utility model belongs to the technical field of the press spare part technique and specifically relates to a balancer movable end cover structure of using on the press.

Background

The press balancer can prevent the slide block from causing impact wear to the press transmission system when the slide block descends due to the dead weight of the slide block, and meanwhile, accidents caused by the falling of the slide block when the brake fails or the connecting rod is broken are prevented. However, in the prior art, as the stroke of the sliding block in the press machine and the adjustment quantity parameter of the die filling height are gradually increased, the length of the piston rod of the balancer is longer and longer, and the sliding block has certain unbalance loading and vibration during the operation of the press machine, so that the condition of friction overheating between the lower end cover of the balancer and the piston rod is easily caused, and even the lower end cover is deformed, thereby affecting the service life of original parts such as a sealing member of the lower end cover and the normal production operation of the press machine.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a balancer movable end cap structure, its difference of overcoming prior art, its simple structure, design benefit can also make the lower extreme cover can take place the minizone and remove in radial direction when strengthening the lower extreme cover leakproofness effectively to come to balance the press during operation slider and have certain unbalance loading and vibration, prolonged the life of lower extreme cover from this.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a balancer activity end cover structure includes pull rod body, lower end cover, activity sealing ring and activity dust ring, the lower end cover the activity sealing ring and the activity dust ring overlaps in proper order and locates the surface of pull rod body, be equipped with the seal groove on the lower end cover, the activity sealing ring install in the seal groove, be equipped with first bolt on the activity dust ring, first bolt fixed connection the activity sealing ring and the activity dust ring.

According to the utility model discloses an embodiment, the outside of activity dirt ring is equipped with fixed pressing plate, the last second bolt that is equipped with of fixed pressing plate, fixed pressing plate's bottom one end butt in activity sealing ring, the other end passes through the second bolt fastening in the bottom end cover.

According to the utility model discloses an embodiment, the activity sealing ring with be equipped with first clearance between the pull rod body, the activity dust ring with be equipped with the second clearance between the pull rod body, the diameter in first clearance is less than the diameter in second clearance.

According to the utility model discloses an embodiment, be equipped with lubricated slot and hydraulic fluid port on the activity dirt ring, lubricated slot intercommunication hydraulic fluid port and second clearance.

The utility model has the advantages that: by adopting the technical scheme, the utility model is provided with the movable sealing ring and the movable dustproof ring, so that the dustproof operation can be carried out on the balancer while the lower end cover is sealed; the lower end cover is provided with a first gap and a second gap, so that the lower end cover can move in a small range in the radial direction, certain unbalance loading and vibration of a sliding block can be balanced when the press machine works, the service life of the lower end cover can be prolonged, in addition, the diameter of the first gap is smaller than that of the second gap, the movable dustproof ring can block dust in the outside air, and a dustproof effect is achieved, the diameter of the first gap is smaller than that of the second gap, so that the movable dustproof ring can further block the outside dust, and good sealing operation is achieved, and good sealing operation can be achieved while the dustproof operation is achieved; the movable sealing ring is provided with a lubricating groove and an oil port, external lubricating oil can be applied to the space between the movable sealing ring and the pull rod body and the space between the movable dustproof ring and the pull rod body through the lubricating groove and the oil port, so that the stability of the pull rod body in the moving process can be ensured, and the service life of the movable sealing ring and the service life of the movable dustproof ring can be effectively prolonged.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment according to the present invention.

Fig. 2 is an enlarged schematic view at a in fig. 1 according to the present invention.

Fig. 3 is an enlarged schematic view at B in fig. 2 according to the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1 to 3, a movable end cap structure 1 of a balancer includes a drawbar body 10, a lower end cap 20, a movable sealing ring 30 and a movable dust ring 40, the lower end cap 20, the movable sealing ring 30 and the movable dust ring 40 are sequentially sleeved on an outer surface of the drawbar body 10, a sealing groove 21 is formed on the lower end cap 20, the movable sealing ring 30 is installed in the sealing groove 21, the movable sealing ring 30 is used for sealing the lower end cap 20, a first bolt 41 is arranged on the movable dust ring 40, the first bolt 41 is fixedly connected to the movable sealing ring 30 and the movable dust ring 40, so that the movable dust ring 40 is fixed on the movable sealing ring 30, the movable dust ring 40 is used for performing dust-proof operation on the lower end cap 20, and the whole device is capable of performing dust-proof operation, the sealing operation can be achieved.

The outer side of the movable dust-proof ring 40 is provided with a fixed pressing plate 42, the fixed pressing plate 42 is provided with a second bolt 421, one end of the bottom of the fixed pressing plate 42 abuts against the movable sealing ring 30, and the other end of the bottom of the fixed pressing plate 42 is fixed on the lower end cover 20 through the second bolt 421, so that the fixed pressing plate 42 can be fixed on the lower end cover 20, and meanwhile, the movable sealing ring 30 can be tightly pressed in the sealing groove 21, thereby effectively limiting the axial movement of the movable sealing ring 30, and ensuring the stability of the movable sealing ring.

Wherein, the movable sealing ring 30 with be equipped with first clearance 31 between the pull rod body 10, the activity dust ring 40 with be equipped with the second clearance 43 between the pull rod body 10, first clearance 31 and the second clearance 43 can be solved effectively and can have certain unbalance loading and vibration and lead to the excessive condition of deformation of sealing member when the press is worked, owing to in the utility model discloses at this moment be equipped with first clearance 31 and second clearance 43 for when the pull rod body 10 takes place radial movement under the unbalance loading of slider and the effect of vibration, movable sealing ring 30 and activity dust ring 40 also can be along with pull rod body 10 radially takes place the removal of small region, can avoid effectively from this the movable sealing ring 30 and activity dust ring 40 excessively warp because the unbalance loading and the vibration of slider, thereby lengthened lower end cap 20, The service life of the movable sealing ring 30 and the movable dust-proof ring 40; the diameter of the first gap 31 is smaller than that of the second gap 43, so that the movable dust-proof ring 40 can block dust in the outside air, thereby playing a role in dust prevention, and the diameter of the first gap 31 is smaller than that of the second gap 43, thereby enabling the movable sealing ring 30 to further block dust in the outside air, thereby playing a role in good sealing operation, and thus the design can realize good sealing operation while realizing dust prevention operation.

The movable dust ring 40 is provided with a lubricating groove 44 and an oil port 45, the lubricating groove 44 is communicated with the oil port 45 and the second gap 43, so that an external oil pipe can deliver lubricating oil to the pull rod body 10 through the oil port 45 and the lubricating groove 44, lubrication and cooling operations between the movable sealing ring 30 and the pull rod body 10 and between the movable dust ring 40 and the pull rod body 10 can be realized, the stability of the pull rod body 10 in the moving process can be ensured, and the service lives of the movable sealing ring 30 and the movable dust ring 40 can be effectively prolonged.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a balancer activity end cover structure, its characterized in that includes pull rod body, lower end cap, activity sealing ring and activity dust ring, the lower end cap the activity sealing ring and the activity dust ring overlaps in proper order and locates the surface of pull rod body, be equipped with the seal groove on the lower end cap, the activity sealing ring install in the seal groove, be equipped with first bolt on the activity dust ring, first bolt fixed connection the activity sealing ring and the activity dust ring.

2. The movable end cap structure of a balancer as claimed in claim 1, wherein a fixed pressing plate is provided on the outer side of the movable dust ring, a second bolt is provided on the fixed pressing plate, one end of the bottom of the fixed pressing plate abuts against the movable sealing ring, and the other end is fixed to the lower end cap by the second bolt.

3. The balancer movable end cap structure according to claim 2, wherein a first gap is provided between the movable seal ring and the draw bar body, and a second gap is provided between the movable dust ring and the draw bar body, and a diameter of the first gap is smaller than a diameter of the second gap.

4. The movable end cap structure of a balancer as claimed in claim 3, wherein the movable dust ring is provided with a lubricating groove and an oil port, and the lubricating groove communicates the oil port and the second gap.