CN210482414U

CN210482414U - General positioning device for front support of excavator movable arm

Info

Publication number: CN210482414U
Application number: CN201920912695.9U
Authority: CN
Inventors: 周效将; 许建华; 李亦超
Original assignee: Changzhou Changlin Yongqing Foundry Co ltd
Current assignee: Changzhou Changlin Yongqing Foundry Co ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-05-08
Anticipated expiration: 2029-06-18

Abstract

The utility model provides a general positioning device for a front support of an excavator boom, which comprises a front support blank, a front support tool and a positioning component, wherein the front support blank is positioned in the front support tool; the device adopts a mode that the front support tool is matched with the positioning component, and the positioning component penetrates through the front support blank and the front support tool, so that the positioning of the front support blank and the front support tool is realized, the positioning difficulty of the front support blank is reduced, and the positioning efficiency of the front support blank is improved; and the positioning part adopts a mode of matching the positioning shaft sleeve part with the positioning mandrel, and the positioning of front support blank pieces with different specifications and sizes can be realized by replacing the positioning shaft sleeve part, so that the universality of the positioning part is improved, and the cost of the positioning part is reduced.

Description

General positioning device for front support of excavator movable arm

Technical Field

The utility model relates to an excavator technical field especially relates to a general positioner of excavator swing arm fore-stock.

Background

An excavator is one of important construction machines, widely used in construction, road, mine, river and other engineering fields, and mainly used for excavating work. The excavator is different from other engineering machines, the working environment of the excavator is extremely severe, and higher requirements on rigidity, strength and reliability of structural components are often met. In the design of the working device of the excavator, the minimum self weight is required on the premise of meeting various functional requirements according to the overall arrangement design requirement of the excavator, so the structural part needs to adopt the optimal design; a movable arm of a double-movable-arm excavator is composed of two movable arms. The double-section movable arm is respectively a lower movable arm and an upper movable arm, the lower end of the lower movable arm is hinged to the rotary platform of the excavator, and a lower movable arm oil cylinder for pushing the lower movable arm to rotate around a hinged point is connected between the lower movable arm and the rotary platform. The rear end of the upper movable arm is hinged with the upper end of the lower movable arm, an upper movable arm oil cylinder is arranged between the upper movable arm and the lower movable arm to push the upper movable arm oil cylinder to rotate around a hinged point at the upper end of the lower movable arm, and the front end of the upper movable arm is hinged with the bucket rod; the existing upper movable arm is of a box-type structure, a rear support is arranged at the rear end of the box-type structure and is used for being hinged to the upper end of a lower movable arm, and a lower support is arranged on the lower side of the rear portion of the box-type structure and is used for being connected with an upper movable arm oil cylinder. The front end of the box-type structure is provided with a front support for being hinged with a bucket rod, and the upper side of the box-type structure is provided with an upper support for being hinged with a bucket rod oil cylinder; in original structure, preceding support on the excavator swing arm often uses forging or steel sheet spare equipment welding to form, during forging or steel sheet spare equipment welding, because welding area is too big, there is the welding to be great, the product fracture fault rate is high in the later stage use, seriously influence the stability of excavator, at present, preceding support is replaced by the cast steel by the whole welded structure type gradually, because the specification and size of preceding support is different, the preceding support processing of different models needs different frocks, lead to frock quantity more, the processing cost is higher, and the location is more loaded down with trivial details, need constantly adjust the front and back of preceding support blank, control the position and just can realize, the operation degree of difficulty is higher, the machining efficiency of preceding support is seriously influenced.

Disclosure of Invention

In order to solve the following problems in the prior art, the prior front support needs different tools for processing, so that the processing cost is higher, the positioning is more complicated, the front and back and left and right positions of a front support blank are required to be continuously adjusted, the operation difficulty is higher, and the processing efficiency of the front support is seriously influenced; the utility model provides a general positioner of excavator cantilever front support, its characterized in that: including preceding support blank piece, preceding support frock and locating part, preceding support blank piece is located preceding support frock, locating part runs through preceding support blank piece and preceding support frock, with preceding support blank piece and preceding support frock location, locating part is including location axle sleeve part and location dabber, location axle sleeve part is located the upper end of preceding support blank piece, the location dabber is located the inside of location axle sleeve part, the location dabber runs through location axle sleeve part to stretch out the both ends of location axle sleeve part, the both ends of location dabber are located preceding support frock.

On this basis, the quantity of location axle sleeve part is a plurality of, the structure of location axle sleeve part is the same, and the external diameter is different, the cooperation with the preceding support blank of different apertures.

On this basis, location axle sleeve part includes the location axle sleeve, the location axle sleeve is two, and the symmetry sets up the surface at the location dabber.

On the basis, the positioning shaft sleeve comprises a front support positioning shaft, the front support blank comprises a mounting hole, the front support positioning shaft is located in the mounting hole, and the positioning shaft sleeve and the front support blank are positioned by matching the outer surface of the front support positioning shaft with the inner surface of the mounting hole.

On the basis, the positioning shaft sleeve comprises a positioning hole, the positioning hole is located in the middle of the front support positioning shaft, the axis of the positioning hole is overlapped with the axis of the front support positioning shaft, the positioning hole penetrates through the left end face and the right end face of the positioning shaft sleeve, the positioning mandrel is located in the positioning hole, and the outer surface of the positioning mandrel is matched with the inner surface of the positioning hole to achieve positioning of the positioning shaft sleeve and the positioning mandrel.

On this basis, the location axle sleeve is including dismantling the flange, dismantle the flange and be located the one end of preceding support location axle, with preceding support location axle fixed connection, the dismantlement of the preceding support location axle of being convenient for.

On this basis, dismantle the flange and include the disassembly hole, the disassembly hole is the screw hole, runs through the terminal surface about dismantling the flange, the quantity of disassembly hole is two at least, evenly arranges along the circumferential edge reason of dismantling the flange.

On this basis, preceding support frock includes the constant head tank, the constant head tank is arranged along preceding support frock direction of height, the width of constant head tank is H, the diameter of location dabber tip is A, H is the same with A location of realizing preceding support blank and preceding support frock.

On the basis, the positioning groove is a U-shaped groove, the open end of the U-shaped groove is located at the upper end of the front support tool, and the front support blank and the positioning component can be conveniently hoisted into the front support tool.

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

1. the device adopts the mode that the front support tool is matched with the positioning component, and the positioning component penetrates through the front support blank and the front support tool, so that the positioning of the front support blank and the front support tool is realized, the positioning convenience of the front support blank is improved, the positioning difficulty of the front support blank is reduced, and the positioning efficiency of the front support blank is improved.

2. The positioning component of the device adopts a mode of matching the positioning shaft sleeve component and the positioning mandrel, the positioning mandrel is matched with the front support blank, the positioning shaft sleeve component is matched with the front support blank, the positioning of the front support blank with different specifications and sizes can be realized by replacing the positioning shaft sleeve component, the universality of the positioning component is improved, and the cost of the positioning component is reduced.

3. This device adopts location dabber and constant head tank complex mode, the constant head tank is U type groove, the location dabber can follow U type groove and reciprocate, thereby the commonality of preceding support frock has been improved, the cost of preceding support frock has been reduced, and the inside of preceding support frock is slided into through U type groove after locating part and the installation of preceding support blank, the in-process that the support blank lifted by crane in the front realizes the location, easy operation is convenient, the degree of difficulty of location has been reduced, the efficiency of location has been improved, the dabber is convenient for lift by crane of preceding support blank simultaneously, easy operation, high durability and convenient use.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic side view of a front support tool according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a positioning sleeve according to an embodiment of the present invention;

in the figure: 1. front support blank 11, mounting hole 2, front support tool 21, positioning groove 3, positioning part 31, positioning sleeve part 311, positioning sleeve 3111, front support positioning shaft 3112, detaching flange 31121, detaching hole 3113, positioning hole 32, positioning core shaft,

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-3, the present invention schematically illustrates a universal positioning device for a front support of an excavator boom.

The utility model discloses a general positioner of excavator cantilever front support, as shown in figure 1, including front support blank 1, preceding support frock 2 and positioning element 3, preceding support blank 1 is located preceding support frock 2, and positioning element 3 runs through front support blank 1 and preceding support frock 2, fixes a position preceding support blank 1 and preceding support frock 2, guarantees the machining precision and the processingquality of preceding support blank 1; the front support blank 1 is of a U-shaped structure, mounting holes 11 are formed in the left side and the right side of the upper end of the U shape, the axis of each mounting hole 11 is perpendicular to the side face of the U shape, and the mounting holes 11 are matched with the positioning parts 3 to realize positioning of the front support blank 1 and the positioning parts 3; the front support tool 2 is of a box body type structure with an uncovered upper end, the upper end of the front support tool 2 is provided with a positioning groove 21, the positioning groove 21 is arranged along the height direction of the front support tool 2, the positioning groove 21 is a U-shaped groove, the opening end of the U-shaped groove is positioned at the upper end of the front support tool 2, the width of the positioning groove 21 is H, as shown in figure 2, the width of the positioning groove 21 is matched with a positioning part 3, the positioning of the positioning part 3 and the front support tool 2 is realized, the positioning of a front support blank 1 and the front support tool 2 is realized, and the positioning part 3 can move up and down along the U-shaped groove, so that the universality of the front support tool 2 is improved, and the cost; the U-shaped groove is an open groove, the front support blank 1 and the positioning component 3 are fixedly installed and then slide into the front support tool 2 from the upper end of the U-shaped groove, positioning is achieved in the lifting process of the front support blank 1, operation is simple, positioning difficulty is reduced, positioning efficiency is improved, and meanwhile the positioning component 3 facilitates lifting of the front support blank 1; the positioning component 3 comprises a positioning shaft sleeve component 31 and a positioning mandrel 32, the positioning shaft sleeve component 31 is positioned at the upper end of the front support blank 1, the positioning mandrel 32 is positioned inside the positioning shaft sleeve component 31, the positioning mandrel 32 penetrates through the positioning shaft sleeve component 31 and extends out of two ends of the positioning shaft sleeve component 31, two ends of the positioning mandrel 32 are positioned in the front support tool 2, the positioning shaft sleeve components 31 are multiple, the structure is the same, the size is different, the positioning shaft sleeve components are used for being matched with the mounting holes 11 with different apertures, the positioning mandrel 32 is matched with the front support tool 2, the positioning shaft sleeve component 31 is matched with the front support blank 1, positioning of the front support blanks 1 with different specifications and sizes can be realized by replacing the positioning shaft sleeve component 31, the universality of the positioning component 3 is improved, and the cost of the positioning component 3 is; the positioning sleeve part 31 includes two positioning sleeves 311, the two positioning sleeves 311 are symmetrically disposed on the outer surface of the positioning core shaft 32, the positioning sleeve 311 is of a ladder-type structure, as shown in fig. 3, and includes a front support positioning shaft 3111 and a detaching flange 3112, the front support positioning shaft 3111 and the detaching flange 3112 are fixedly connected together, the front support positioning shaft 3111 is a section of optical axis and is located in the mounting hole 11, the outer surface of the front support positioning shaft 3111 is matched with the inner surface of the mounting hole 11 to realize the positioning of the positioning sleeve 311 and the front support blank 1, the detaching flange 3112 is of a plate-shaped structure and is located at the end of the front support positioning shaft 3111, the diameter of the detaching flange 3112 is larger than the outer diameter of the front support positioning shaft 3111, so that the detaching flange 3112 is located at the end surface of the mounting hole 11, the detaching flange 3112 includes a detaching hole 31121, the detaching hole 31121 is a threaded hole, and penetrates through the left and right end surfaces of the detaching, the number of the dismounting holes 31121 is 3, the dismounting holes 31121 are uniformly arranged along the circumferential edge of the dismounting flange 3112, the screws penetrate through the dismounting holes 31121 and are pressed against the side surface of the mounting hole 11, the screws are tightened, the dismounting flange 311 is driven to drive the front support positioning shaft 3111 to move, and therefore the front support positioning shaft 3111 is convenient to dismount; the positioning shaft sleeve 311 further comprises a positioning hole 3113, the positioning hole 3113 is arranged along the axis of the front support positioning shaft 3111, the positioning hole 3113 is located in the center of the front support positioning shaft 3111 and penetrates through the left end face and the right end face of the positioning shaft sleeve 311, the positioning mandrel 32 is located inside the positioning hole 3113, and the outer surface of the positioning mandrel 32 is matched with the inner surface of the positioning hole 3113 to achieve positioning of the positioning shaft sleeve 311 and the positioning mandrel 32; the positioning mandrel 32 is a section of optical axis, run through the both ends of positioning sleeve 311, the both ends of positioning mandrel 32 are in positioning groove 21, the diameter of positioning mandrel 32 tip is A, A is the same with H, thereby realize the fixed of relative preceding support frock 2 position of positioning mandrel 32, the location of preceding support blank 1 and preceding support frock 2 promptly, and positioning mandrel 32 can reciprocate along positioning groove 21, the commonality of preceding support frock 2 has been improved, the cost of preceding support frock 2 has been reduced, and positioning mandrel 32 slides in preceding support frock 2 along the open end of positioning groove 21, the in-process that preceding support blank 1 lifted by crane realizes the location, and is easy to operate, the degree of difficulty of location has been reduced, the efficiency of location has been improved.

The working principle is as follows:

the positioning shaft sleeve 311 is symmetrically installed in the installation hole 11 of the front support blank 1, then the positioning mandrel 32 penetrates through the positioning shaft sleeve 311, the two ends of the positioning mandrel 32 extending out of the positioning shaft sleeve 311 are adjusted to be uniform, the front support blank 1 is lifted, the front support blank 1 is moved to the position above the front support tool 2, the positioning mandrel 32 is adjusted to be located above the positioning groove 21, the front support blank 1 is placed down, the positioning mandrel 32 slides into the positioning groove 21, and therefore positioning of the front support blank 1 and the front support tool 2 is achieved.

The device adopts a mode that the front support tool 2 is matched with the positioning component 3, and the positioning component 3 penetrates through the front support blank 1 and the front support tool 2, so that the positioning of the front support blank 1 and the front support tool 2 is realized, the positioning convenience of the front support blank 1 is improved, the positioning difficulty of the front support blank 1 is reduced, and the positioning efficiency of the front support blank 1 is improved; and the positioning component 3 adopts the matching mode of the positioning shaft sleeve component 311 and the positioning mandrel 32, the positioning mandrel 32 is matched with the front support tool 2, the positioning shaft sleeve component 311 is matched with the front support blank 1, the positioning of the front support seat blank 1 with different specifications and sizes can be realized by replacing the positioning shaft sleeve component 311, the universality of the positioning component 3 is improved, the cost of the positioning component 3 is reduced, meanwhile, the positioning core shaft 32 can move up and down along the U-shaped groove by adopting the matching mode of the positioning core shaft 32 and the positioning groove 21, thereby improving the universality of the front support tool 2, reducing the cost of the front support tool 2, and the positioning component 3 and the front support blank 1 slide into the front support tool 2 through the U-shaped groove after being installed, the positioning is realized in the hoisting process of the front support blank 1, the operation is simple and convenient, the positioning difficulty is reduced, and the positioning efficiency is improved.

While the foregoing specification illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a general positioner of excavator swing arm fore-stock which characterized in that: including preceding support blank (1), preceding support frock (2) and locating part (3), preceding support blank (1) is located preceding support frock (2), locating part (3) run through preceding support blank (1) and preceding support frock (2), with preceding support blank (1) and preceding support frock (2) location, locating part (3) are including location axle sleeve part (31) and location dabber (32), location axle sleeve part (31) are located the upper end of preceding support blank (1), location dabber (32) are located the inside of location axle sleeve part (31), location dabber (32) run through location axle sleeve part (31) to stretch out the both ends of location axle sleeve part (31), the both ends of location dabber (32) are located preceding support frock (2).

2. The universal positioning device for the front support of the excavating motor arm as claimed in claim 1, wherein: the number of the positioning shaft sleeve parts (31) is multiple, the positioning shaft sleeve parts (31) have the same structure and different outer diameters, and are matched with front support blank pieces (1) with different apertures.

3. A universal positioning device for a front support of an excavator boom according to claim 2, wherein: the positioning shaft sleeve component (31) comprises two positioning shaft sleeves (311), and the two positioning shaft sleeves (311) are symmetrically arranged on the outer surface of the positioning core shaft (32).

4. A universal positioning device for a front support of an excavator boom according to claim 3, wherein: location axle sleeve (311) are including preceding support location axle (3111), preceding support blank (1) are including mounting hole (11), preceding support location axle (3111) are located mounting hole (11), the location of location axle sleeve (311) and preceding support blank (1) is realized with the interior surface cooperation of mounting hole (11) to the surface of preceding support location axle (3111).

5. The universal positioning device for the front support of the excavating motor arm as claimed in claim 4, wherein: location axle sleeve (311) includes locating hole (3113), locating hole (3113) are located the middle part of preceding seat location axle (3111), the axis of locating hole (3113) and the axis coincidence of preceding seat location axle (3111), terminal surface about locating hole (3113) run through location axle sleeve (311), location dabber (32) are located locating hole (3113), the location of location axle sleeve (311) and location dabber (32) is realized in the surface cooperation of the surface of location dabber (32) and the internal surface of locating hole (3113).

6. The universal positioning device for the front support of the excavating motor arm as claimed in claim 5, wherein: location axle sleeve (311) is including dismantling flange (3112), dismantle flange (3112) and be located the one end of preceding support location axle (3111), with preceding support location axle (3111) fixed connection, the dismantlement of the preceding support location axle (3111) of being convenient for.

7. The universal positioning device for the front support of the excavating motor arm as claimed in claim 6, wherein: dismantle flange (3112) including dismantling hole (31121), dismantling hole (31121) is the screw hole, runs through the terminal surface about dismantling flange (3112), the quantity of dismantling hole (31121) is two at least, evenly arranges along the circumferential edge reason of dismantling flange (3112).

8. The universal positioning device for the front support of the excavating motor arm as claimed in claim 1, wherein: preceding support frock (2) include constant head tank (21), constant head tank (21) are arranged along preceding support frock (2) direction of height, the width of constant head tank (21) is H, the diameter of positioning core axle (32) tip is A, H realizes the location of preceding support blank (1) and preceding support frock (2) with A is the same.

9. The universal positioning device for the front support of the excavating motor arm as claimed in claim 8, wherein: the positioning groove (21) is a U-shaped groove, the open end of the U-shaped groove is located at the upper end of the front support tool (2), and the front support blank (1) and the positioning component (3) can be conveniently hoisted into the front support tool (2).