CN219025651U

CN219025651U - Cold working die for rotation shaft sleeve of excavator body

Info

Publication number: CN219025651U
Application number: CN202223441682.9U
Authority: CN
Inventors: 吴远铎; 胡红兵; 万勇
Original assignee: Fujian Feist Forging Products Co ltd
Current assignee: Fujian Feist Forging Products Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-16
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a cold working die for an excavator body rotating shaft sleeve, which comprises a lower die holder and an upper die holder, wherein four corners at the top end of the lower die holder are fixedly provided with positioning shafts, the outer parts of the four positioning shafts are movably connected with the four corners of the upper die holder, the bottom of the upper die holder and the top of the lower die holder are respectively provided with an upper die plate and a lower die plate through bolts in a threaded manner, the inner wall of the upper die plate and the inner wall of the lower die plate sequentially comprise a wear-resisting layer and a reinforcing layer from inside to outside, the bottom of the lower die holder is provided with a damping layer, and the bottom end of the damping layer is fixedly connected with a bottom plate.

Description

Cold working die for rotation shaft sleeve of excavator body

Technical Field

The utility model relates to the technical field of excavators, in particular to a cold working die for a rotating shaft sleeve of an excavator body.

Background

An excavator is also called an excavator, and is an earth moving machine which excavates materials higher or lower than a carrying surface by a bucket and loads the materials into a transport vehicle or unloads the materials to a storage yard. The materials excavated by the excavator are mainly soil, coal, silt and soil and rock after pre-loosening. In recent years, development of the construction machine is relatively rapid, and the excavator has become one of the most important construction machines in engineering construction. Three of the most important parameters of an excavator: operating weight (mass), engine power and bucket capacity.

The existing cold working die for the rotation shaft sleeve of the excavator body has the following defects:

(1) The cold-working shaft sleeve is not standard enough, the die bases cannot be precisely matched and tightly attached;

(2) The stability of the device is insufficient, cold working failure is easy to be caused by shaking and collision,

(3) The tightness is insufficient, the cold-processed product is inconvenient to demould, the bearing capacity of the die is insufficient, and the strength and durability of the whole die are required to be improved.

Disclosure of Invention

The utility model aims to provide a cold working die for the rotation shaft sleeve of the excavator body, which solves the problems that the existing cold working die for the rotation shaft sleeve of the excavator body, which is proposed in the background art, cannot be precisely matched and tightly attached to die holders, has insufficient stability, is easy to cause cold working failure due to shaking and collision, is inconvenient to demould, has insufficient pressure bearing capacity, and has the overall strength and durability to be improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a cold working mould that excavator fuselage rotation axis was used mechanically, includes die holder and upper die base, four equal fixed mounting of corners on die holder top have the locating shaft, four the outside of locating shaft all with four corner swing joint of upper die base, upper die plate and lower bolster are installed through the bolt respectively to the bottom of upper die base and the top of die holder, the mould groove has all been seted up to the inboard of upper die plate and the inboard of lower bolster, the inner wall of upper die plate and the inner wall of lower bolster include wearing layer and enhancement layer from interior to exterior in proper order, the inboard bottom fixed mounting of die holder has hydraulic electric lifter, hydraulic electric lifter's expansion end fixedly connected with backup pad, the backup pad closely laminates with the bottom of lower bolster, the bottom of lower die holder is provided with the buffer layer, the bottom fixedly connected with bottom plate of buffer layer.

As a preferable technical scheme of the utility model, the middle part of the top end of the upper die holder is fixedly provided with the connecting block, and the die can be conveniently connected with processing equipment through the connecting block.

As a preferable technical scheme of the utility model, the wear-resistant layer is made of ceramic wear-resistant materials, and the wear resistance of the die groove can be improved through the wear-resistant layer, so that the durability is improved.

As a preferable technical scheme of the utility model, the side of the bottom end of the lower die holder and the side of the bottom end of the upper die holder are fixedly provided with the sealing gasket, and the sealing property between the upper die holder and the lower die holder can be improved through the sealing gasket, so that external impurities are prevented from entering the die.

As a preferable technical scheme of the utility model, the bottom end inside the lower die holder and the top end inside the upper die holder are fixedly provided with the bearing plates, and the bearing capacity of the upper die holder and the lower die holder can be improved through the bearing plates, so that the upper die holder and the lower die holder are prevented from being damaged by compression.

As a preferable technical scheme of the utility model, the shock-absorbing layer consists of a plurality of shock absorbers, the top ends and the bottom ends of the shock absorbers are respectively and fixedly connected with the lower die holder and the bottom plate, and the shock absorbers can provide shock absorption and compression resistance for the die and avoid the impact of the device on the cold working of the die due to collision and shaking.

As a preferable technical scheme of the utility model, the surface of the bottom plate is provided with a plurality of fixing holes, and the die can be conveniently connected and fixed on other equipment through the fixing holes.

Compared with the prior art, the utility model has the beneficial effects that:

1. the upper template and the lower template which are easy to disassemble and assemble are arranged, and the quick replacement can be carried out according to the specification requirements of the actual excavator rotating shaft sleeve, so that the processing die meeting the requirements is obtained, and the working efficiency is greatly improved.

2. The positioning shaft is arranged, so that the upper die holder and the lower die holder can be precisely positioned and attached during processing, the die holder is prevented from being misplaced, the damping layer is arranged, the stability of the die can be improved, and the impact caused by collision and shaking is reduced.

3. The hydraulic electric lifting rod and the supporting plate are arranged, so that the lower die plate can be supported upwards, and convenience is brought to quick demoulding of the shaft sleeve.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic front view of the present utility model;

fig. 3 is a front cross-sectional view of the present utility model.

In the figure: 1. a lower die holder; 2. an upper die holder; 3. a connecting block; 4. positioning a shaft; 5. a bottom plate; 6. an upper template; 7. a lower template; 8. a mold groove; 9. a sealing gasket; 10. a reinforcing layer; 11. a wear-resistant layer; 12. a bearing plate; 13. a support plate; 14. a hydraulic electric lifting rod; 15. a shock absorbing layer; 16. a damper; 17. and a fixing hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model provides a cold working die for rotating shaft sleeve of excavator body, comprising a lower die holder 1 and an upper die holder 2, wherein four corners at the top end of the lower die holder 1 are fixedly provided with positioning shafts 4, the outer parts of the four positioning shafts 4 are movably connected with the four corners of the upper die holder 2, the bottom of the upper die holder 2 and the top of the lower die holder 1 are respectively provided with an upper die plate 6 and a lower die plate 7 through bolts, the inner sides of the upper die plate 6 and the lower die plate 7 are respectively provided with a die groove 8, the inner walls of the upper die plate 6 and the lower die plate 7 sequentially comprise a wear layer 11 and a reinforcing layer 10 from inside to outside, the bottom end of the inner side of the lower die holder 1 is fixedly provided with a hydraulic electric lifting rod 14, the movable end of the hydraulic electric lifting rod 14 is fixedly connected with a supporting plate 13, the supporting plate 13 is tightly attached to the bottom of the lower die plate 7, the bottom of the lower die holder 1 is provided with a shock-absorbing layer 15, and the bottom end of the shock-absorbing layer 15 is fixedly connected with a bottom plate 5.

Preferably, the middle part at the top end of the upper die holder 2 is fixedly provided with a connecting block 3, and the die can be conveniently connected with processing equipment through the connecting block 3.

Preferably, the wear-resistant layer 11 is made of a ceramic wear-resistant material, and the wear resistance of the mold groove 8 can be improved by the wear-resistant layer 11, thereby improving durability.

Preferably, the side of the bottom end of the lower die holder 1 and the side of the bottom end of the upper die holder 2 are fixedly provided with sealing gaskets 9, and the sealing property between the upper die holder 2 and the lower die holder 1 can be improved through the sealing gaskets 9, so that external impurities are prevented from entering the die.

Preferably, the bottom inside the lower die holder 1 and the top inside the upper die holder 2 are fixedly provided with the bearing plates 12, and the bearing capacity of the upper die holder 2 and the lower die holder 1 can be improved through the bearing plates 12, so that the upper die holder 2 and the lower die holder 1 are prevented from being damaged by compression.

Preferably, the damping layer 15 is composed of a plurality of dampers 16, the top ends and the bottom ends of the plurality of dampers 16 are fixedly connected with the lower die holder 1 and the bottom plate 5 respectively, damping and compression resistance can be provided for the die through the dampers 16, and the influence of the device on cold working of the die due to collision and shaking is avoided.

Preferably, the surface of the bottom plate 5 is provided with a plurality of fixing holes 17, and the connection and the fixation of the die on other devices can be facilitated through the fixing holes 17.

When the cold working die for the excavator body rotating shaft sleeve is particularly used, the upper die holder 2 and the lower die holder 1 form the main body of the working die, the four corners of the upper die holder 2 and the lower die holder 1 are movably connected through the four positioning shafts 4, so that the upper die holder 2 can move up and down, when other extrusion forming equipment is connected through the connecting block 3 on the upper die holder 2, the upper die holder 2 and the lower die holder 1 can be precisely attached to each other, dislocation between the die holders is avoided, the working effect is further improved, the upper die plate 6 and the lower die plate 7 which are arranged on the upper die holder 2 and the lower die holder 1 and are easy to disassemble can be quickly replaced according to the specification requirement of an actual excavator rotating shaft sleeve, the working die meeting the requirement is obtained, the working raw materials can be put into the die groove 8 for working, the working efficiency is greatly improved, the sealing gasket 9 arranged at the joint edge of the upper die base 2 and the lower die base 1 of the die can improve the sealing property of the upper die base 2 and the lower die base 1 during cold pressing, avoid external impurities or gas from entering the die to affect the forming effect of the shaft sleeve, the supporting plate 13 jointed with the lower die plate 7 can be connected through the hydraulic electric lifting rod 14 arranged in the lower die base 1, and can be upwards supported during cold pressing, so that the upper die plate 6 and the lower die plate 7 can be more tightly connected, and the lower die plate 7 can be continuously upwards supported after the cold pressing is finished, thereby bringing convenience to the quick demoulding of the shaft sleeve, being composed of a plurality of shock absorbers 16 through the damping layer 15 arranged at the bottom of the die, improving the stability of the die, reducing the influence caused by collision and shaking, improving the use strength of the upper die plate 6 and the lower die plate 7 through the reinforcing layer 10 arranged in the upper die plate 6 and the lower die plate 7, the wear-resisting performance of the die grooves 8 of the upper die plate 6 and the lower die plate 7 can be improved through the wear-resisting layer 11, so that the durability is improved, the bearing capacity of the upper die base 2 and the lower die base 1 can be improved through the bearing plates 12 arranged inside the upper die base 2 and the lower die base 1, and the compression damage of the upper die base 2 and the lower die base 1 is avoided. Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a cold working mould that excavator fuselage rotation axis was used mechanically, includes die holder (1) and upper die holder (2), its characterized in that: the novel die comprises a die holder (1), wherein four corners at the top end of the die holder are fixedly provided with positioning shafts (4), the four corners of the top end of the die holder are movably connected with four corners of an upper die holder (2), an upper die plate (6) and a lower die plate (7) are respectively and spirally arranged at the bottom of the upper die holder (2) and the top of the lower die holder (1) through bolts, die grooves (8) are respectively formed in the inner side of the upper die plate (6) and the inner side of the lower die plate (7), the inner wall of the upper die plate (6) and the inner wall of the lower die plate (7) sequentially comprise a wear-resisting layer (11) and a reinforcing layer (10) from inside to outside, a hydraulic electric lifting rod (14) is fixedly arranged at the bottom end of the inner side of the die holder (1), a supporting plate (13) is fixedly connected with the movable end of the hydraulic electric lifting rod (14), the supporting plate (13) is tightly attached to the bottom of the lower die holder (1), and a base plate (5) is fixedly connected with the bottom plate (15) of the shock-absorbing layer (15).

2. The cold working die for an excavator body rotating shaft sleeve according to claim 1, wherein: the middle part at the top end of the upper die holder (2) is fixedly provided with a connecting block (3).

3. The cold working die for an excavator body rotating shaft sleeve according to claim 1, wherein: the wear-resistant layer (11) is made of a ceramic wear-resistant material.

4. The cold working die for an excavator body rotating shaft sleeve according to claim 1, wherein: and sealing gaskets (9) are fixedly arranged on the side of the bottom end of the lower die holder (1) and the side of the bottom end of the upper die holder (2).

5. The cold working die for an excavator body rotating shaft sleeve according to claim 1, wherein: the bottom inside the lower die holder (1) and the top inside the upper die holder (2) are fixedly provided with bearing plates (12).

6. The cold working die for an excavator body rotating shaft sleeve according to claim 1, wherein: the shock-absorbing layer (15) is composed of a plurality of shock absorbers (16), and the top ends and the bottom ends of the shock absorbers (16) are fixedly connected with the lower die holder (1) and the bottom plate (5) respectively.

7. The cold working die for an excavator body rotating shaft sleeve according to claim 1, wherein: the surface of the bottom plate (5) is provided with a plurality of fixing holes (17).