CN111645770A - Excavator drag sprocket and mount pad structure assembly - Google Patents
Excavator drag sprocket and mount pad structure assembly Download PDFInfo
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- CN111645770A CN111645770A CN202010601689.9A CN202010601689A CN111645770A CN 111645770 A CN111645770 A CN 111645770A CN 202010601689 A CN202010601689 A CN 202010601689A CN 111645770 A CN111645770 A CN 111645770A
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- chain wheel
- drag chain
- drag
- sprocket
- connecting seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/30—Track-tensioning means
- B62D55/305—Track-tensioning means acting on pivotably mounted idlers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/084—Endless-track units or carriages mounted separably, adjustably or extensibly on vehicles, e.g. portable track units
- B62D55/0847—Track blocking devices mounted on the frame; Track guides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses an excavator drag chain wheel and mounting seat structure assembly, which comprises a drag chain wheel and a drag chain wheel mounting seat, wherein the drag chain wheel comprises a drag chain shaft, a left half drag chain wheel body and a right half drag chain wheel body which are arranged on the drag chain shaft, and the excavator drag chain wheel and mounting seat structure assembly also comprises: the connecting seat is provided with a towing chain shaft mounting hole, a towing chain shaft of the towing chain wheel penetrates into the towing chain shaft mounting hole of the connecting seat, and the connecting seat is provided with a bolt mounting hole; the upper end face of the drag chain wheel mounting seat is provided with a threaded hole, and fastening bolts are sequentially arranged in the mounting hole of the connecting seat and the threaded hole of the drag chain wheel mounting seat, namely, the connecting seat and the drag chain wheel mounting seat are fastened and connected by the fastening bolts. The invention has the advantages of simplified structure, obviously reduced cost, convenient processing, easy assembly and integrally improved comprehensive mechanical property. The excavator drag chain wheel and mounting seat structure assembly is mainly used for supporting the upper crawler belt to prevent the upper crawler belt from sagging, and meanwhile, the auxiliary crawler belt assembly runs along a set motion track.
Description
Technical Field
The invention relates to the technical field of excavator drag chain wheels, in particular to an excavator drag chain wheel and mounting seat structure assembly.
Background
Along with the quick development of excavator trade, more and more diversified with mount pad structure assembly drag sprocket and the mount pad structure assembly of excavator of prior art, the drag sprocket of prior art and mount pad structure assembly structure are complicated, inconvenient bolt-up, and raw and other materials low-usage, the difficult cycle of processing is long, the expense is high, and overall structure assembly adjustment volume is big, need carry out the innovative design to overall structure, mounting means, strives to reach the purpose of being convenient for machining, assembly, structure lightweight, durability promotion.
The prior art assembly of a drag chain wheel and a mounting seat structure of an excavator is shown in fig. 1 and comprises a track frame welding part 101, a drag chain wheel mounting seat 102, a gasket 103, a fastening bolt 104, a drag chain wheel 105 and a steel track assembly 106. The drag chain wheel 105 is mounted in the drag chain wheel mounting seat 102, adjusted in position according to the required size, and fastened by a fastening bolt 104 in cooperation with a washer 103.
The excavator drag chain wheel mounting seat and the structure of the prior art are shown in figures 2 and 3, the excavator drag chain wheel mounting seat is blanked by a Q345C steel plate, and then is subjected to machining treatment, 4 (2) holes are drilled, bottom holes are drilled in threaded holes 5, tapping is carried out, and a plane 1, a plane 2, a boring hole 3 and a milling groove 6 are planed and milled. The machining process is complex, the machining period is long, the manufacturing cost is high, about 35 pieces of D grooves are milled in each saw blade, the groove milling efficiency is low, and the consumption of the saw blades is high. The dimensional tolerance of the hole 3 is strict and needs to be carefully controlled, otherwise, the tightening torque of the fastening bolt 104 reaches a specified value, and the inner diameter of the hole 3 is not shrunk in place, so that the main shaft 201 of the drag chain wheel 105 cannot be completely fastened, the drag chain wheel 105 is caused to transversely move back and forth, the abrasion between the drag chain wheel 105 and the steel track assembly 106 is inevitably accelerated, and the service life of the drag chain wheel is greatly shortened.
The drag chain wheel structure of the excavator in the prior art is shown in fig. 4 and comprises a drag wheel shaft 201, a tapered rolling bearing 202, a drag wheel body 203 and an end cover 204. The tapered rolling bearing 202 is assembled on the tug shaft 201 and is mainly used for supporting the tug body 203 and keeping the tug body 203 to normally rotate. The diameter of the tread 7 of the towing wheel body 203 is large, the wheel body is heavy, the used raw materials are large, 2 split forged pieces are welded by manual CO2 gas shielded welding, the welding position 8 of the towing wheel body is referred, the production efficiency is low, the thermal deformation is large, the dimensional tolerance of the position where the cone rolling bearing 202 is installed needs to be strictly controlled, and the processing cost is high. In addition, the tapered rolling bearing 202 is a precision part, and is expensive to purchase.
Publication (bulletin) No.: CN206617533U, publication (public notice) day: 2017-11-07 discloses an excavator drag sprocket, which comprises a sprocket body and a shaft, wherein a floating seal seat is installed on one side of the sprocket body, a floating seal ring is arranged at the bottom of the floating seal seat, an elastic steel ring for the shaft is arranged on one side of an O-shaped ring, the sprocket body is fixedly connected with the floating seal seat through the floating seal ring and the floating seal ring, a baffle is installed at the other end of the shaft, a first spring washer is arranged on one side of the baffle, and a first hexagon head bolt is arranged on one side of the first spring washer. This excavator drag sprocket, the end cover passes through second hexagon head bolt and second spring washer and wheel body fixed connection, can dismantle the end cover through second hexagon head bolt and second spring washer, can see first spring washer and first hexagon head bolt after the end cover is opened, first spring washer and first hexagon head bolt are axle and wheel body fixed connection device, can dismantle axle and wheel body through first spring washer and first hexagon head bolt, realize the convenient change of axle and wheel body, thereby increase drag sprocket's life.
Publication (bulletin) No.: CN203005596U, publication (public notice) day: 2013-06-19 discloses an anti-loosening drag chain wheel support mechanism for an excavator track, which belongs to the technical field of engineering machinery and comprises a drag chain wheel, a fixed support, a gasket, an adjusting bolt, a spring, an adjusting block, a movable support and a drag chain wheel support shaft. The utility model discloses under the excavator because of the not enough condition of butter, come tight flexible fixing support through setting up adjusting bolt in the structure to through the adjusting block location, adjust fixing support's height under the exogenic action, drive the tow sprocket by fixing support, thereby change the height of whole tow sprocket support, realized the tensioning of track, ensure that the not hard up condition that drops of track can not appear in the excavator, and then guaranteed the normal work of excavator.
The technical scheme of the disclosed technology, the technical problems to be solved and the beneficial effects are all different from the technical scheme of the invention, or the technical field or the application occasion is different, and no technical inspiration exists in the technical scheme disclosed above.
Disclosure of Invention
The invention aims to provide an excavator drag chain wheel and mounting seat structure assembly aiming at the defects in the prior art, which has the advantages of simplified structure, obviously reduced cost, convenient processing, easy assembly and integrally improved comprehensive mechanical property. The excavator drag chain wheel and mounting seat structure assembly is mainly used for supporting the upper crawler belt to prevent the upper crawler belt from sagging, and meanwhile, the auxiliary crawler belt assembly moves along a set motion track.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an excavator tow sprocket and mount pad structure assembly, includes tow sprocket, tow sprocket mount pad, the tow sprocket includes the drag chain axle and installs at the epaxial half left tow sprocket wheel body of drag chain, half right tow sprocket wheel body, still includes:
the connecting seat is provided with a towing chain shaft mounting hole, a towing chain shaft of the towing chain wheel is assembled in the towing chain shaft mounting hole of the connecting seat, and the connecting seat is also provided with a bolt mounting hole; the upper end face of the drag chain wheel mounting seat is provided with a threaded hole, and fastening bolts are sequentially assembled in the bolt mounting hole of the connecting seat and the threaded hole of the drag chain wheel mounting seat, namely, the connecting seat and the drag chain wheel mounting seat are fastened and connected by the fastening bolts.
Furthermore, the bolt mounting holes are provided with four, and the threaded holes are also provided with four corresponding threaded holes.
Further, still include:
the left bearing bush is arranged on the drag chain shaft, and the left half drag chain wheel body is arranged outside the left bearing bush;
the right bearing bush is arranged on the drag chain shaft, and the right half drag chain wheel body is arranged outside the right bearing bush.
Furthermore, the tug shaft is in interference fit with the connecting seat, the left bearing bush and the right bearing bush are in clearance fit with the tug shaft, and relative motion exists between the left bearing bush and the right bearing bush. Two metal sealing rings are arranged between the connecting seat and the left half trailing wheel body, the left sealing ring is fixed on the connecting seat, the right sealing ring is fixed on the left half trailing wheel body, and relative friction motion is performed between the contact surfaces of the two side sealing rings. Two metal seal ring outsides are furnished with O type sealing washer, and right axle bush outer end is furnished with O type sealing washer simultaneously, ensure that inside lubricating oil of whole sprocket wheel body does not take place to leak outward to and debris such as the outside dust of sprocket wheel body get into inside the sprocket wheel body.
Furthermore, the left half trailing chain wheel body and the right half trailing chain wheel body are welded into a whole in a friction welding mode.
Compared with the prior art, the invention has the following beneficial effects:
the excavator drag chain wheel and mounting seat structure assembly is mainly used for supporting the track assembly, prevents drooping, assists the track assembly to move according to setting for the movement track simultaneously, and is higher to aspects such as overall structure, lightweight, mounting means, and the structure should be more rationalized, the machining of being convenient for, reduce cost promotes the incorruptibility, easily assembly.
The mounting seat and the drag chain wheel are lighter in structure, machining is facilitated greatly, the cost of raw materials and machining auxiliary materials is reduced greatly, the overall structure is easy to assemble, and the overall structure is reasonable and compact and can be improved.
The novel drag chain wheel and mounting seat structure of the invention is designed to be bold in innovation and light on the basis of the drag chain wheel mounting seat structure in the prior art. The mounting seat is easy to machine, saves the manufacturing cost, shortens the processing period and is easy to mount the drag chain wheel. The rolling bearing in the drag chain wheel is improved into a bearing bush (sliding bearing), the sizes of the bearing bush body and the tread are relatively reduced at the same time, the raw material of steel is saved, and the mechanical processing is convenient; the towing wheel body structure group adopts friction welding to replace manual CO2 gas shielded welding, reduces welding thermal deformation, and the incorruptibility obtains promoting, and life cycle extension, production efficiency obtains very big promotion.
Drawings
FIG. 1 is a schematic view of a prior art excavator drag sprocket and mount structure assembly;
FIG. 2 is a schematic view of a prior art excavator drag sprocket mounting base;
FIG. 3 is a view in the direction E of FIG. 2;
FIG. 4 is a schematic view of a prior art excavator drag sprocket configuration;
FIG. 5 is a schematic view of an excavator drag sprocket and mounting base structure assembly in accordance with the present invention;
FIG. 6 is a schematic view of the construction of the mounting base of the drag chain wheel for the excavator according to the present invention;
FIG. 7 is a view taken along line A of FIG. 6;
FIG. 8 is a schematic view of a drag chain wheel for an excavator according to the present invention;
fig. 9 is a left side view of fig. 8.
In the figure: 101. a track frame weldment; 102. a drag chain wheel mounting seat; 103. a gasket; 104. fastening a bolt; 105. a drag chain wheel; 106. a steel track assembly;
1. a plane; 2. a plane; 3. an aperture; 4. an aperture; 5. a threaded hole; 6. a groove; 7. a tug body tread; 8. welding the tug body; 9. a plane; 10. the threaded hole 12 and the wheel body welding part of the drag chain wheel;
201. a trailing axle; 202 conical rolling bearing; 203. a drag wheel body; 204 end caps;
301. a track frame weldment; 302. a drag chain wheel mounting seat; 303. a gasket; 304. fastening a bolt; 305. a drag chain wheel; 306. a steel track assembly;
401. a trailing axle; 402. a left bearing shell; 403. a sprocket body of the trailing sprocket; 404. a right bearing shell; 405. a connecting seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1 to 9, the present invention provides a technical solution:
the utility model provides an excavator tow sprocket and mount pad structure assembly, includes tow sprocket 305, tow sprocket mount pad 302, the tow sprocket includes drag chain axle 401 and installs half left tow sprocket wheel body, half right tow sprocket wheel body on drag chain axle 401, still includes:
the connecting seat 405 is provided with a tow chain shaft mounting hole, the tow chain shaft 401 of the tow chain wheel is assembled in the tow chain shaft mounting hole of the tow chain wheel mounting seat 302, and the connecting seat 405 is provided with four bolt mounting holes; the upper end face of the drag chain wheel mounting seat 302 is provided with four threaded holes, and the four threaded holes are sequentially mounted in the bolt mounting hole of the connecting seat 405 and the threaded hole of the drag chain wheel mounting seat 302 through fastening bolts, namely, the connecting seat 405 and the drag chain wheel mounting seat 302 are fixedly connected through the fastening bolts.
Furthermore, the bolt mounting holes are four, and the threaded holes are correspondingly four.
Further, still include:
the left bearing bush is sleeved with the left bearing bush 402 and is assembled on the towing chain shaft 401, and the left half towing chain wheel body is sleeved outside the left bearing bush 402;
a right bearing shell, the right bearing shell 405 is assembled on the tow chain shaft 401, and the right half tow chain wheel body sleeve is assembled outside the right bearing shell 405.
Further, the tug shaft 401 is in interference fit with the connecting seat 405, the left bearing bush 402, the right bearing bush 405 and the tug shaft 401 are in clearance fit, and relative motion exists between the two. Two metal sealing rings are arranged between the connecting seat 405 and the left half-chain wheel body, the left sealing ring is fixed on the connecting seat 405, the right sealing ring is fixed on the chain wheel body 403, and the contact surfaces of the two side sealing rings perform relative friction motion. The outside of two metal seal rings is furnished with O type sealing washer, and right bearing bush outer end is furnished with O type sealing washer simultaneously, ensures that inside lubricating oil of whole tow sprocket wheel body 403 does not take place the external leakage to and inside debris such as the outside dust of tow sprocket wheel body 403 gets into tow sprocket wheel body 403.
Furthermore, the left half trailing chain wheel body and the right half trailing chain wheel body are welded into a whole in a friction welding mode.
The invention relates to a novel drag chain wheel and mounting seat structure assembly, which mainly comprises a drag chain wheel mounting seat 302 and a drag chain wheel 305, and specifically comprises a crawler frame welding part 301, the drag chain wheel mounting seat 302, a gasket 303, a fastening bolt 304, a drag chain wheel 305 and a steel crawler assembly 306 as shown in fig. 5. The drag chain wheel 305 is directly arranged on the drag chain wheel mounting seat 302, does not need to be aligned and adjusted, is fixed by a fastening bolt 304 matched with a gasket 303, and is convenient and fast to assemble.
According to the structure of the mounting seat for the trailing chain wheel, as shown in fig. 6 and 7, only a plane 9 needs to be planed and milled for mounting the trailing chain wheel 305, and threaded holes 10(4 groups) need to be drilled and machined for fixing the trailing chain wheel 305 by fastening bolts 304. Compared with the existing drag chain wheel mounting seat 102, the structure is very convenient for machining, has light weight and saves steel raw materials and a large amount of blade and saw blade consumption. Compared with the conventional drag chain wheel mounting seat 102, the total processing cost and the raw materials are greatly reduced, and the cost is reduced by about 210 units/unit (4 units/unit).
The structure of the trailing sprocket of the present invention is shown in fig. 8 and 9, and specifically includes a trailing axle 401, a left bearing 402, a trailing sprocket body 403, a right bearing 404, and a connecting seat 405. The left bearing bush 402 and the right bearing bush 404 are assembled in an inner hole of the drag chain wheel body 403, have the same function as a tapered rolling bearing used in the existing drag chain wheel structure, are made of lead-tin-copper alloy and sintered steel plates, have high durability and much lower price cost than the tapered rolling bearing, support the drag chain wheel body 403 and keep the drag chain wheel body 403 to normally rotate. The towing chain wheel body 403 is composed of 1 half towing wheel body forged piece on the left and right, the diameter size of the riding wheel body tread 11 is smaller than that of the towing wheel body tread 7 in the existing towing chain wheel structure by about 20mm, the towing chain wheel body 403 is welded in a friction welding mode, referring to the welding position 12 of the towing chain wheel body, the production efficiency is improved by multiple times compared with manual CO2 gas shielded welding, the welding fusion is good, the overall welding thermal deformation is small, the towing chain wheel body 403 is exquisite and durable, the comprehensive mechanical performance is high, and the overall cost of the towing chain wheel structure is greatly reduced, so that compared with the existing towing chain wheel, the cost of the novel towing chain wheel is reduced by about 130 yuan.
The advantages of the invention are as follows:
(1) compared with the existing drag chain wheel mounting seat, the novel drag chain wheel mounting seat is very convenient to process, greatly reduces the total processing cost and the raw material cost, and has extremely remarkable effect. The steel raw material is saved by 4kg per piece, and the total cost (material, labor and cutter consumption) is saved by about 210 yuan per piece (4 pieces per table).
(2) The novel tug body is greatly improved in overall mechanical performance, abrasion resistance and toughness are improved by multiple times, the novel tug body is formed by friction welding, and compared with the conventional tug body which is welded by manual CO2 gas shielded welding, the novel tug body is good in forming fusion, small in thermal deformation, improved in production efficiency by multiple times and stable in quality performance. Compared with the diameter of the prior tug body tread 7, the diameter of the novel tug body tread 11 is 20mm smaller, and the overall weight is reduced by 3kg per unit. The tolerance requirement of the existing cone rolling bearing part for mounting the drag wheel body is strict, and the processing cost is higher. The novel pulley body is provided with the sliding bearing (bearing bush) so as to be convenient to process, and the processing cost is obviously reduced.
(3) The novel drag chain wheel adopts the bearing bush (sliding bearing) to replace a tapered rolling bearing, the purchase cost is greatly reduced, the durability is further greatly improved, and the whole structure is compact.
(4) Compared with the existing drag chain wheel, the cost of the novel drag chain wheel is greatly reduced, and the cost is saved by about 130 elements/part.
The invention is very practical and simple, is a new trend of development of the drag chain wheel and the mounting seat structure assembly, and compared with the drag chain wheel and the mounting seat structure assembly in the prior art, the material and processing cost (labor and tools) of the drag chain wheel and the mounting seat structure assembly are greatly reduced, the overall performance is greatly improved, the structure is reasonable and compact, and meanwhile, the drag chain wheel and the mounting seat structure assembly are convenient and quick to assemble and disassemble, and have wide popularization and utilization values.
Example 2:
referring to fig. 1 to 9, the present invention provides a technical solution:
the utility model provides an excavator tow sprocket and mount pad structure assembly, includes tow sprocket 305, tow sprocket mount pad 302, the tow sprocket includes drag chain axle 401 and installs half left tow sprocket wheel body, half right tow sprocket wheel body on drag chain axle 401, still includes:
the connecting device comprises a connecting seat 405, wherein the connecting seat 405 is provided with a mounting hole, a drag chain shaft 401 of a drag chain wheel 306 is assembled in the mounting hole of the connecting seat, and the connecting seat 405 is provided with a bolt mounting hole; the upper end face of the drag chain wheel mounting seat 302 is provided with a threaded hole, and a fastening bolt 304 is sequentially arranged in the bolt through hole of the connecting seat 405 and the threaded hole of the drag chain wheel mounting seat 302, namely, the connecting seat 405 and the drag chain wheel mounting seat 302 are fixedly connected by the fastening bolt.
Furthermore, the bolt mounting holes are four, and the threaded holes are correspondingly four.
Further, still include:
the left bearing bush is sleeved on the drag chain shaft 401, and the left half drag chain wheel body is sleeved outside the left bearing bush;
and the right bearing bush is sleeved on the drag chain shaft 401, and the right half drag chain wheel body is sleeved outside the right bearing bush.
Although fig. 1 to 9 are used in all the above embodiments, it is obvious to those skilled in the art that separate drawings are not shown as long as the parts or structural features missing in the embodiments are removed from the drawings. As will be clear to the skilled person. Of course, the embodiment with more components is only the best embodiment, and the embodiment with less components is the basic embodiment, but the basic object of the invention can also be achieved, so all the modified embodiments are within the protection scope of the invention.
All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again. Such as welding, threaded connections, etc.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Excavator drag sprocket and mount pad structure assembly, including drag sprocket, drag sprocket mount pad, drag sprocket includes the drag chain axle and installs at the epaxial half left drag sprocket wheel body of drag chain, half right drag sprocket wheel body, its characterized in that includes:
the connecting seat is provided with a towing chain shaft mounting hole, a towing chain shaft of the towing chain wheel is assembled in the towing chain shaft mounting hole of the connecting seat, and the connecting seat is also provided with a bolt mounting hole; the upper end face of the drag chain wheel mounting seat is provided with a threaded hole, and fastening bolts are sequentially assembled in the bolt mounting hole of the connecting seat and the threaded hole of the drag chain wheel mounting seat, namely, the connecting seat and the drag chain wheel mounting seat are fastened and connected by the fastening bolts.
2. The excavator drag sprocket and mounting base structure assembly as claimed in claim 1, wherein said connecting base is provided with four bolt mounting holes, and said drag sprocket mounting base is also provided with four corresponding threaded holes.
3. The excavator trailing sprocket and mount structure assembly of claim 1 or 2 further comprising:
the left bearing bush is arranged on the drag chain shaft, and the left half drag chain wheel body is arranged outside the left bearing bush;
the right bearing bush is arranged on the drag chain shaft, and the right half drag chain wheel body is arranged outside the right bearing bush.
4. The excavator drag sprocket and mount structure assembly of claim 3, wherein the drag axle is in interference fit with the connecting seat, and the left and right bearing bushes are in clearance fit with the drag axle, and have relative movement therebetween; a left metal sealing ring and a right metal sealing ring are arranged between the connecting seat and the left half drag chain wheel body, wherein the left sealing ring is fixed on the connecting seat, the right sealing ring is fixed on the left half drag chain wheel body, and the contact surfaces of the two side sealing rings perform relative friction motion; the two metal sealing rings are externally provided with O-shaped sealing rings, and the outer end of the right bearing bush is provided with the O-shaped sealing ring.
5. The assembly as claimed in claim 1, 2 or 4, wherein the left and right half sprocket bodies are welded together by friction welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010601689.9A CN111645770B (en) | 2020-06-28 | 2020-06-28 | Excavator drags sprocket and mount pad structure assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010601689.9A CN111645770B (en) | 2020-06-28 | 2020-06-28 | Excavator drags sprocket and mount pad structure assembly |
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| Publication Number | Publication Date |
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| CN111645770A true CN111645770A (en) | 2020-09-11 |
| CN111645770B CN111645770B (en) | 2023-08-01 |
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| CN202010601689.9A Active CN111645770B (en) | 2020-06-28 | 2020-06-28 | Excavator drags sprocket and mount pad structure assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407080A (en) * | 2020-11-19 | 2021-02-26 | 榆林学院 | Walking device of rotary drilling rig |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203005596U (en) * | 2012-12-26 | 2013-06-19 | 徐州徐工挖掘机械有限公司 | Excavator crawler belt anti-loosing drag chain wheel support mechanism |
| CN104443091A (en) * | 2014-11-28 | 2015-03-25 | 中联重机股份有限公司 | Supporting chain wheel for track-laying vehicle |
| CN206598903U (en) * | 2017-03-31 | 2017-10-31 | 湖北中特工程机械有限公司 | A kind of thrust wheel of digging machine |
| CN206617533U (en) * | 2017-03-31 | 2017-11-07 | 湖北中特工程机械有限公司 | A kind of excavator sprocket wheel |
-
2020
- 2020-06-28 CN CN202010601689.9A patent/CN111645770B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203005596U (en) * | 2012-12-26 | 2013-06-19 | 徐州徐工挖掘机械有限公司 | Excavator crawler belt anti-loosing drag chain wheel support mechanism |
| CN104443091A (en) * | 2014-11-28 | 2015-03-25 | 中联重机股份有限公司 | Supporting chain wheel for track-laying vehicle |
| CN206598903U (en) * | 2017-03-31 | 2017-10-31 | 湖北中特工程机械有限公司 | A kind of thrust wheel of digging machine |
| CN206617533U (en) * | 2017-03-31 | 2017-11-07 | 湖北中特工程机械有限公司 | A kind of excavator sprocket wheel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407080A (en) * | 2020-11-19 | 2021-02-26 | 榆林学院 | Walking device of rotary drilling rig |
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| Publication number | Publication date |
|---|---|
| CN111645770B (en) | 2023-08-01 |
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