CN213856855U - Integral both arms electro-hydraulic hammer unit head assembly - Google Patents

Abstract

The utility model relates to a unit head assembly belongs to mechanical design and makes technical field. The power head comprises a power head shell and an internal hydraulic power device, wherein a shell and a base are integrated into a whole, and the base is directly connected with a rack. The casing is integral, the parts except the cavity occupied by the hydraulic device are all the casing, the bottom of the casing is a base, and the whole body formed by the casing and the base is a support body of the power head. The support body is connected with the rack through a wire loading bolt, and the screwing length of the wire loading bolt is more than three times of the thickness of the standard nut. Compared with the prior art, the electro-hydraulic hammer has the advantages that the connecting plate is not arranged, materials are saved, the cost is reduced, and the overall height of the electro-hydraulic hammer is reduced. The utility model has the advantages of high precision of the cavity, no leakage of the shell, small size, high strength, good performance of the whole machine, long service life and the like.

Description

Integral both arms electro-hydraulic hammer unit head assembly

Technical Field

The utility model relates to a unit head assembly, especially a shell and connecting plate are an overall structure's both arms electro-hydraulic hammer unit head assembly belongs to mechanical design and makes technical field.

Background

The electro-hydraulic hammer is a novel energy-saving and environment-friendly forging device and is widely applied in the forging industry. The power head is generally arranged above the frame according to the force transmission effect and the rationality of mechanical design. In the operation process, a larger striking force needs to be applied to the workpiece, the weight and the operation speed of the hammer head need to be larger, and the frame and the power head need to be designed to be very firm. Taking an 8-ton double-arm electro-hydraulic hammer as an example, the weight of a power head is generally 19 tons, the weight of a rack is 90 tons, and the weight of a hammer anvil is about 130 tons, and in addition, the electro-hydraulic hammer generates vibration in the operation process, which puts high requirements on the stability of the electro-hydraulic hammer. The traditional electro-hydraulic hammer shown in the attached figure 1 is characterized in that a is a rack, b is a power head, c is a hammer rod, d is a connecting plate and e is a hammer head, a connecting bolt nut between the power head and the connecting plate is f, a connecting bolt nut between the connecting plate and the rack is g, the connecting plate is arranged above the rack, the power head is arranged above the connecting plate, the connecting plate is fixed on the rack firstly, and then the power head is fixed on the connecting plate. The mode is that the connecting plate is connected with the rack, and the connecting plate is connected with the power head, so that a large number of bolts and nuts are needed for fixing, the connection relation is complex, the stability is reduced, and the weight and the height above the rack are increased due to the fact that the weight of the connecting plate is large (about 5 tons for an 8-ton hammer). In view of the foregoing, there is a need for an improved powerhead housing and connection between the powerhead and the housing.

Disclosure of Invention

The utility model provides an integral both arms electro-hydraulic hammer unit head assembly, it designs into an integral structure with unit head shell and connecting plate. The connection form between the power head and the rack is optimized, and the strength and the stability of the electro-hydraulic hammer are improved.

In order to achieve the above object, the utility model discloses a following technical scheme implements, an integral both arms electro-hydraulic hammer unit head assembly, it contains: frame, hammer stem, tup, unit head assembly, the unit head assembly comprises unit head shell and hydraulic means, through the bolt fastening in the frame top, the below at the hammer stem is connected to the tup, the hammer stem is connected hydraulic means's below, hydraulic means drives the tup through the hammer stem and moves from top to bottom and hits work piece, its characterized in that:

the power head shell comprises a shell and a base, and the shell and the base are integrated;

the part of the shell outside the cavity occupied by the hydraulic device is a whole;

the whole body formed by the shell and the base is a support body of the power head.

The support body is connected with the rack through a wire loading bolt, and the screwing length of the wire loading bolt is more than three times of the thickness of the standard nut.

In the design, the shell and the base of the power head are arranged into a whole, a connecting plate is not arranged between the power head and the rack, the base of the power head is directly fixed above the rack, connecting links are reduced, an intermediate connecting piece is omitted, and a connecting structure is optimized. Because the connecting plate is not needed, the material is saved, the cost is reduced, and the overall height of the electro-hydraulic hammer is reduced. The utility model discloses a whole power head structure is formed by the machine tooling preparation, and the die cavity precision is high, the shell does not have the seepage, small intensity is big, the complete machine performance is good, long service life.

Drawings

FIG. 1 is a schematic structural diagram of a conventional dual-arm electro-hydraulic hammer;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a schematic structural view of the improved double-arm electro-hydraulic hammer of the present invention;

FIG. 4 is a view taken along line A of FIG. 3;

fig. 5 is an enlarged view of a portion I of fig. 3.

In the attached drawings 1 and 2, a is a frame, b is a power head, c is a hammer rod, d is a connecting plate, e is a hammer head, f is a connecting bolt nut between the power head and the connecting plate, and g is a connecting bolt nut between the connecting plate and the frame.

In the attached figures 3, 4 and 5, 1 is a frame, 2 is a power head, 3 is a hammer rod, 4 is a wire-loading bolt and 5 is a hammer head.

Detailed Description

The invention will be further explained with reference to the drawings:

as shown in the attached figures 3, 4 and 5, a frame 1 is fixed on a ground foundation, a power head 2 is clamped at the top of the frame 1 and fixed by a screw bolt 4, a hammer rod 3 is connected to a piston of a hydraulic cylinder in an inner cavity of the power head 2, and a hammer head 5 is fixedly connected to the lower end of the hammer rod 3.

The shell and the base of the power head 2 are arranged into a whole, a connecting plate is not arranged between the power head 2 and the rack 1, the base of the power head 2 is directly fixed above the rack 1, connecting links are reduced, an intermediate connecting piece is omitted, and a connecting structure is optimized.

As shown in fig. 1 and 2, the rack a is fixed on the ground, a connecting plate d is arranged at the top of the rack a, the power head b is arranged above the connecting plate d, the power head b is fixedly connected with the connecting plate d through a connecting bolt and a nut f, and the connecting plate d is connected with the rack a through a connecting bolt and a nut g. From a comparison of fig. 1, 2 with fig. 3, 4, it can be seen that: because the connecting plate d is not needed, the material is saved, the cost is reduced, and the overall height of the electro-hydraulic hammer is also reduced.

Claims (2)

1. An integrated dual arm electrohydraulic hammer head assembly comprising: frame, hammer stem, tup, unit head assembly, the unit head assembly comprises unit head shell and hydraulic means, through the bolt fastening in the frame top, the below at the hammer stem is connected to the tup, the hammer stem is connected hydraulic means's below, hydraulic means drives the tup through the hammer stem and moves from top to bottom and hits work piece, its characterized in that:

the power head shell comprises a shell and a base, and the shell and the base are integrated;

the part of the shell outside the cavity occupied by the hydraulic device is a whole;

the whole body formed by the shell and the base is a support body of the power head.

2. The integrated dual-arm electro-hydraulic hammer power head assembly of claim 1, wherein: the support body is connected with the rack through a wire loading bolt, and the screwing length of the wire loading bolt is more than three times of the thickness of the standard nut.

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