CN214729195U

CN214729195U - Guide wheel assembly of excavator

Info

Publication number: CN214729195U
Application number: CN202120958775.5U
Authority: CN
Inventors: 全怀东
Original assignee: Shandong Hengyuan Construction Machinery Co Ltd
Current assignee: Shandong Hengyuan Construction Machinery Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-11-16
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses an excavator guide wheel assembly, including the main pulley body, the main pulley body rotates through the pivot and is connected with two installation pieces, two the installation piece through a fixing bolt fixedly connected with mount, the upper end lateral wall of mount passes through damping piston fixedly connected with mount pad, the upper end lateral wall of mount passes through damping spring and mount pad fixed connection, the damping spring cover is established on the piston that subtracts, the lateral wall of main pulley body is equipped with a plurality of draw-in grooves, and is a plurality of equal joint has the fixed block, and is a plurality of the vice wheel piece of the equal fixedly connected with arc of lateral wall of fixed block, it is a plurality of all be equipped with a plurality of thread grooves in the draw-in groove, and is a plurality of all be equipped with the screw hole on the fixed block. The utility model discloses can divide into a plurality of arc auxiliary wheel pieces with the auxiliary wheel body, when the auxiliary wheel body appears serious wear, only need to change corresponding arc auxiliary wheel piece can, great reduction the cost of plant maintenance.

Description

Guide wheel assembly of excavator

Technical Field

The utility model relates to a track engineering machine tool accessory technical field especially relates to an excavator guide wheel assembly.

Background

Along with the construction of not breaking down of china's basic setting, also more and more to engineering machine's demand, engineering machine such as crawler-type excavator, bull-dozer have obtained extensive application in fields such as infrastructure, hydraulic engineering, highway laying, and crawler-type running gear is the walking mode that large-scale machinery such as hoist, crane, bull-dozer were used commonly, and crawler-type excavator's running gear includes the chassis and locates subassembly such as grip-pad, chain, leading wheel assembly on the chassis, the theory of operation of leading wheel assembly is as follows: grease is injected into the grease cylinder through a grease nipple by a grease gun, so that a piston extends outwards to push a tension spring, the guide wheel moves leftwards and then the track is tensioned, the tension spring has a proper stroke, and the tension spring is compressed to play a buffering role when the tension force is too large; after too big tight power that rises disappears, the tight spring that rises of compressed pushes the leading wheel to the normal position, can guarantee to slide in order to change the wheel base along the track frame, guarantee the dismouting of track, reduce the impact of walking process, avoid the rail chain derail, wherein the effect of leading wheel plays the guide effect to the chain walking, the leading wheel possesses the auxiliary wheel body of main wheel body and side, wherein the auxiliary wheel body thickness of lateral wall is relatively thin, wearing and tearing are comparatively serious in long-term friction with the track, cracked phenomenon can appear even, thereby lead to the leading wheel inefficacy.

In the prior art, most of the guide wheels are of an integrated structure, and the auxiliary wheel body on the side edge can only be integrally replaced after being seriously worn, so that the guide wheels are wasted, and the maintenance cost of the whole machine is increased.

To this end, we propose an excavator guide wheel assembly to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art structure that the guide wheel is the integral type at most, can only carry out the whole change after the vice wheel body wearing and tearing of side are serious, comparatively extravagant, increased the problem of the maintenance cost of whole machine, and the excavator guide wheel assembly that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an excavator guide wheel assembly comprises a main wheel body, the main wheel body is rotatably connected with two mounting blocks through a rotating shaft, the two mounting blocks are fixedly connected with a fixed frame through first fixing bolts, the side wall of the upper end of the fixed frame is fixedly connected with a mounting seat through a damping piston, the side wall of the upper end of the fixed frame is fixedly connected with the mounting seat through a damping spring, the damping spring is sleeved on the lightening piston, the side wall of the main wheel body is provided with a plurality of clamping grooves, the clamping grooves are internally and uniformly connected with fixing blocks, the side wall of each fixing block is fixedly connected with an arc-shaped auxiliary wheel piece, a plurality of thread grooves are arranged in the clamping grooves, the fixing blocks are provided with threaded holes, the fixing blocks are connected with the clamping grooves in a threaded mode through a plurality of second fixing bolts, and the inner threads of the thread grooves and the thread holes are meshed with the outer threads of the second fixing bolts.

Preferably, the side walls of the fixing blocks are fixedly connected with supporting blocks, and the supporting blocks are fixedly connected with the arc-shaped auxiliary wheel pieces.

Preferably, the supporting blocks are triangular, and the side walls of the supporting blocks are provided with chamfers.

Preferably, the rotating shaft is rotatably connected with a baffle through a bearing, the side wall of the baffle abuts against the side walls of the supporting block and the auxiliary wheel piece, and the side wall of the baffle is provided with a groove matched with the second fixing bolt.

Preferably, a plurality of lightening holes are formed in the main wheel body, and the number of the lightening holes is not less than eight.

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

1. through the arrangement of the fixing block, the arc-shaped auxiliary wheel pieces, the supporting block, the baffle and the like, the auxiliary wheel body can be divided into a plurality of arc-shaped auxiliary wheel pieces, when the auxiliary wheel body is seriously worn, only the corresponding arc-shaped auxiliary wheel pieces need to be replaced, and the equipment maintenance cost is greatly reduced;

2. the setting of baffle has not only increased the supporting role to the arc auxiliary wheel piece for the arc auxiliary wheel piece is more stable in the use, can protect a plurality of second fixing bolt on the fixed block moreover, avoids the contact of impurity such as second fixing bolt muddy water, increases the life of whole device.

Drawings

Fig. 1 is a schematic structural diagram of an excavator guide wheel assembly provided by the present invention;

FIG. 2 is a schematic cross-sectional view of the main wheel body;

FIG. 3 is a schematic side view of the main wheel body;

fig. 4 is a schematic structural diagram at a in fig. 1.

In the figure: the damping device comprises a fixed seat 1, a damping spring 2, a damping piston 3, a fixed frame 4, a first fixing bolt 5, a mounting block 6, a main wheel body 7, a fixing block 8, an arc-shaped auxiliary wheel piece 9, a supporting block 10, a lightening hole 11, a bearing 12, a rotating shaft 13, a baffle plate 14, a clamping groove 15, a threaded groove 16, a threaded hole 17, a groove 18 and a second fixing bolt 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, an excavator guide wheel assembly comprises a main wheel body 7, the main wheel body 7 is rotatably connected with two installation blocks 6 through a rotating shaft 13, the two installation blocks 6 are fixedly connected with a fixed frame 4 through a first fixing bolt 5, the upper end side wall of the fixed frame 4 is fixedly connected with an installation seat through a damping piston 3, the upper end side wall of the fixed frame 4 is fixedly connected with the installation seat through a damping spring 2, the damping spring 2 is sleeved on the damping piston, the side wall of the main wheel body 7 is provided with a plurality of clamping grooves 15, fixing blocks 8 are clamped in the clamping grooves 15, the side walls of the fixing blocks 8 are fixedly connected with arc-shaped auxiliary wheel sheets 9, the side walls of the fixing blocks 8 are fixedly connected with support blocks 10, the support blocks 10 are fixedly connected with the arc-shaped auxiliary wheel sheets 9, the support blocks 10 are triangular, the triangular structure is more stable, the side walls of the support blocks 10 are provided with chamfers, the supporting function for the arc-shaped auxiliary wheel piece 9 is added to ensure the stable work of the arc-shaped auxiliary wheel piece 9, a plurality of thread grooves 16 are arranged in a plurality of clamping grooves 15, a plurality of threaded holes 17 are arranged on a plurality of fixing blocks 8, the plurality of fixing blocks 8 are in threaded connection with the clamping grooves 15 through a plurality of second fixing bolts 19, the internal threads of the plurality of thread grooves 16 and the plurality of threaded holes 17 are meshed with the external threads of the second fixing bolts 19, a baffle plate 14 is rotatably connected to a rotating shaft 13 through a bearing 12, the side wall of the baffle plate 14 is abutted against the supporting block 10 and the side wall of the auxiliary wheel piece, a groove 18 matched with the second fixing bolt 19 is arranged on the side wall of the baffle plate 14, the supporting function for the arc-shaped auxiliary wheel piece 9 is increased, the arc-shaped auxiliary wheel piece 9 is more stable in the using process, the plurality of second fixing bolts 19 on the fixing blocks 8 can be protected, and the contact of impurities such as muddy water of the second fixing bolts 19 is avoided, the service life of the whole device is prolonged, a plurality of lightening holes 11 are formed in the main wheel body 7, and the number of the lightening holes 11 is not less than eight.

The utility model discloses early during operation, place fixed block 8 of fixedly connected with arc auxiliary wheel piece 9 in draw-in groove 15, use a plurality of second fixing bolt 19 to fix fixed block 8 in draw-in groove 15, then establish baffle 14 on pivot 13 through bearing 12 cover, and make baffle 14 offset with main wheel body 7, can divide into a plurality of arc auxiliary wheel pieces 9 with the auxiliary wheel body, when the serious wearing and tearing appear in the auxiliary wheel body, only need to change corresponding arc auxiliary wheel piece 9 can, great reduction the cost of plant maintenance.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The guide wheel assembly of the excavator comprises a main wheel body (7) and is characterized in that the main wheel body (7) is rotatably connected with two installation blocks (6) through a rotating shaft (13), the two installation blocks (6) are fixedly connected with a fixed frame (4) through a first fixing bolt (5), the upper end side wall of the fixed frame (4) is fixedly connected with a mounting seat through a damping piston (3), the upper end side wall of the fixed frame (4) is fixedly connected with the mounting seat through a damping spring (2), the damping spring (2) is sleeved on the damping piston, the side wall of the main wheel body (7) is provided with a plurality of clamping grooves (15), a plurality of clamping grooves (15) are clamped with fixing blocks (8), the side walls of the fixing blocks (8) are fixedly connected with arc-shaped auxiliary wheel pieces (9), and a plurality of thread grooves (16) are arranged in the clamping grooves (15), a plurality of all be equipped with screw hole (17) on fixed block (8), it is a plurality of fixed block (8) all are through a plurality of second fixing bolt (19) and draw-in groove (15) threaded connection, and the internal thread of a plurality of thread grooves (16) and a plurality of screw hole (17) meshes with the external screw thread of second fixing bolt (19) mutually.

2. The excavator guide wheel assembly as claimed in claim 1, wherein a plurality of support blocks (10) are fixedly connected to the side walls of the fixed blocks (8), and a plurality of support blocks (10) are fixedly connected to the arc-shaped auxiliary wheel piece (9).

3. The excavator guide wheel assembly as claimed in claim 2, wherein a plurality of said support blocks (10) are triangular in shape, and the side walls of a plurality of said support blocks (10) are chamfered.

4. The excavator guide wheel assembly as claimed in claim 1, wherein the rotating shaft (13) is rotatably connected with a baffle plate (14) through a bearing (12), the side wall of the baffle plate (14) is abutted against the side walls of the support block (10) and the auxiliary wheel piece, and the side wall of the baffle plate (14) is provided with a groove (18) matched with the second fixing bolt (19).

5. The excavator guide wheel assembly as claimed in claim 1, wherein the main wheel body (7) is provided with a plurality of lightening holes (11), and the number of the lightening holes (11) is not less than eight.