CN2532124Y

CN2532124Y - Seal type small arm head assembly for dredger

Info

Publication number: CN2532124Y
Application number: CN 02226059
Authority: CN
Inventors: 卢治培
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-04
Filing date: 2002-03-04
Publication date: 2003-01-22
Anticipated expiration: 2012-03-04

Abstract

Disclosed is a small arm head component of a sealed excavator, a bucket spindle (1) connects and fixes a small arm head (2), a copper sleeve (3), a bucket (4), a bucket (8), an adjusting sleeve (5), a floating seal ring (6) and a rubber sealing ring (7), the adjusting sleeve is arranged between the small arm head and the bucket, the two end faces of the small arm head and the adjusting sleeve are provided a tongue-and-groove, the floating seal ring and the rubber sealing ring are arranged in the tongue-and-groove, and the bucket is provided with an adjusting hole for matching an adjusting lead screw, the utility model has advantages of reasonable structure and design, convenient dissembling and maintenance and good sealing performance, and can ensure that the hook bucket can work flexibly and pollutants can not enter the small arm head, so the small arm head component is firm and durable and has promotion and application value.

Description

Sealed excavator forearm head assembly

The utility model relates to a kind of assembly of excavator machinery, is a kind of sealed excavator forearm head assembly specifically.

In the prior art, the little arm head of excavator is directly to connect the movable part that digs shovel, no matter be homemade or import, also no matter be axially refuel or put oiling, its fatal shortcoming all is perishable.All comparing operation under the rugged environment as the excavator forearm is first, the little arm head of existing excavator, because its poor sealing, sewage, mud and corrosive liquids enter between the bucket spindle and each cover of little arm head easily, and oxidation, each part of the little arm head of corrosion cause excavator forearm head to damage, to often keep in repair and change impaired accessory ability operate as normal, also to play butter first and second every day in order to maintain the little arm head of excavator, both influence work, increase the workload and the expense of maintenance, maintenance again.

The purpose of this utility model is for the shortcoming that overcomes above-mentioned prior art provides a kind of improved excavator forearm head assembly, improves its sealing effectiveness, reduces the workload and the expense of maintenance, maintenance, increases the service life.

The purpose of this utility model can realize by following technical measures: this forearm head assembly has bucket spindle; bucket spindle is with little arm head; copper sheathing; adjust cover; the bucket ear; floating sealing ring and rubber seal are connected and fixed; the bucket ear is located at the bucket spindle both ends; the bucket ear is provided with adjusts the silk hole; regulating screw mandrel is assemblied in the bucket ear adjustment silk hole; a bucket ear is connected and fixed on bucket spindle; little arm head is located between the bucket ear of bucket spindle both ends; forearm head both ends of the surface are provided with tongue-and-groove; be provided with between little arm head and the bucket ear and adjust cover, it is corresponding with the tongue-and-groove that the corresponding end face of forearm head is provided with tongue-and-groove and little arm head to adjust cover; be provided with floating sealing ring in the tongue-and-groove; rubber seal; can guarantee that bucket spindle rotates flexibly, guarantee the sealing of little arm head, prevent sewage; mud enters in the little arm head; be not worn for protecting little arm head, be provided with copper sheathing in forearm head two axis holes.

Above-mentioned little arm head is provided with steam vent and tank filler sleeve.

During installation, little arm head and excavator forearm are welded, two another axles that struggle against ears and hook bucket are linked up.

Characteristics of the present utility model are: (1) is overlapped owing to being provided with adjustment, by regulating the screw in the two bucket ears, makes bucket ear and little arm head when welding, flexible centering, the degree of balance of assurance hook bucket; (2) because bucket ear and bucket spindle are fixed with taper pin, can reduce the wearing and tearing between bucket spindle and bucket ear, each cover; (3) owing to be provided with floating sealing ring and rubber seal, both can guarantee that the hook bucket worked flexibly, can guarantee that again sewage, mud and corrosive liquids do not enter in the little arm head, make forearm head assembly sturdy and durable.

Concrete and embodiment of the present utility model is provided by the following drawings.

Fig. 1 is a structure chart of the present utility model;

Fig. 2 is the front view of little arm head;

Fig. 3 is the front view of band taper hole bucket ear;

Fig. 4 is the profile of Fig. 3;

Fig. 5 is a front view of adjusting cover;

Fig. 6 is the left view of Fig. 5;

Fig. 7 is the front view of floating sealing ring;

Fig. 8 is the front view of copper sheathing.

Below with reference to accompanying drawing the utility model is described in further detail: with reference to Fig. 1; Fig. 2; Fig. 3; Fig. 4; Fig. 5; Fig. 6; Fig. 7; Fig. 8; This small arm head assembly has bucket spindle [1]; Bucket spindle [1] is with small arm head [2]; Copper sheathing [3]; Bucket ear [4]; Bucket ear [8]; Adjusting sleeve [5]; Floating sealing ring [6] and rubber seal [7] are connected and fixed; Bucket ear [4]; Bucket ear [8] respectively has two and adjusts the silk hole; Adjust the silk hole and cross bucket ear both ends of the surface; In adjusting screw mandrel [10] is arranged; Bucket ear [4]; Bucket ear [8] is located at bucket spindle [1] two ends; The ear [8] that wherein struggles against radially has taper hole; Be fixed on bucket spindle [1] one end by taper pin [9]; Small arm head [2] is located between bucket ear [4] and the bucket ear [8]; Small arm head [2] has steam vent and tank filler sleeve; Both ends of the surface are provided with tongue-and-groove; Small arm head [2] and bucket ear [4]; [8] be provided with adjusting sleeve [5] between; Adjusting sleeve [5] is provided with tongue-and-groove with the corresponding end face of bucket ear; And the tongue-and-groove correspondence of small arm head [2]; Another side is provided with two parallel straight troughs; Respectively with bucket ear [4]; Bucket ear [8] two-screw hole correspondence; The convenient adjustment and dismounting; Be provided with two floating sealing rings [6] in the tongue-and-groove of the tongue-and-groove of small arm head [2] and adjusting sleeve [5]; One end face of floating sealing ring [6] is the plane; Mutually corresponding; The other end is arc; Rubber seal [7] is housed; Adjust small arm head [2] by regulating screw mandrel [10]; Floating sealing ring [6]; Adjusting sleeve [5]; Cooperation between bucket ear [4] and the bucket ear [8]; Can guarantee that bucket spindle [1] rotates flexibly; The sealing of small arm head [2]; Prevent sewage; Mud enters in the small arm head [2]; For protection small arm head [2] is not worn, in small arm head [2] two axis holes, be provided with copper sheathing [3]. Bucket ear [4], bucket ear [8] and bucket spindle [1] rotate together in the time of can guaranteeing work like this, reduce the ear [4] that struggles against, the wearing and tearing between ear [8] and the bucket spindle [1] of struggling against, and prevent that sewage, mud and decadent nature liquid from entering in the cover, oxidation, corrode little arm head [2] and each part.Adopt said structure can guarantee the flexibility that forearm head assembly rotates, the axial and sealing radially of forearm head assembly.

Reasonable in design of the present utility model, there is oil lubrication in all running places, can adjust the cooperation of each part according to the degree of wear, the dismounting maintenance is convenient, good seal performance, the annual once oil of notes that only needs, and specious, both can guarantee that the hook bucket worked flexibly, can guarantee again that sewage, mud and decadent nature liquid do not enter in the little arm head to cause damage parts, make forearm head assembly sturdy and durable, be worthy of promotion and application.

Claims

1. sealed excavator forearm head assembly, bucket spindle [1] is arranged; little arm head [2]; bucket ear [4]; [8]; it is characterized in that little arm head [2] and bucket ear [4]; be respectively equipped with adjustment cover [5] [8]; forearm head both ends of the surface are provided with tongue-and-groove; adjust cover [5] and be provided with tongue-and-groove with the corresponding end face of little arm head [2]; and the tongue-and-groove correspondence of little arm head; floating sealing ring [6] be provided with in the tongue-and-groove; floating sealing ring [6] and little arm head [2]; be provided with rubber seal [7] between adjusting in the corresponding tongue-and-groove of cover [5]; the ear that struggles against is provided with adjusts the silk hole; regulate screw mandrel [10] and be assemblied in the bucket ear adjustment silk hole, a bucket ear [8] is connected and fixed on bucket spindle [1].

2, forearm head assembly according to claim 1 is characterized in that adjusting the silk hole and crosses bucket ear both ends of the surface.