CN211568137U - Tensioning wheel, walking device of excavator and excavator - Google Patents
Tensioning wheel, walking device of excavator and excavator Download PDFInfo
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- CN211568137U CN211568137U CN202020104295.8U CN202020104295U CN211568137U CN 211568137 U CN211568137 U CN 211568137U CN 202020104295 U CN202020104295 U CN 202020104295U CN 211568137 U CN211568137 U CN 211568137U
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Abstract
The utility model provides a running gear and excavator of tight wheel, excavator, tight wheel include wheel hub and annular rim, and the rim cover is outside wheel hub, and rim and wheel hub pass through connecting piece detachably fixed connection. The walking device of the excavator comprises a crawler frame, a tensioning shaft and a tensioning wheel, wherein the tensioning shaft penetrates through the crawler frame, the tensioning shaft is supported by the crawler frame and can rotate relative to the crawler frame, and an axial through shaft hole is formed in the center of a hub of the tensioning wheel; the tensioning shaft passes through the shaft hole of the tensioning wheel and is connected with the shaft hole, and the tensioning wheel drives the tensioning shaft to rotate when rotating; or a sliding bearing is embedded in the shaft hole of the tensioning wheel, the tensioning shaft penetrates through the sliding bearing, and the tensioning wheel can rotate relative to the tensioning shaft. The excavator comprises a walking device of the excavator. The utility model discloses a tension pulley is split type structure, when the rim damages and during unable normal use, only change the rim can, need not to change whole tension pulley, avoid whole scrapping of tension pulley, reduce cost of maintenance and use cost.
Description
Technical Field
The utility model belongs to the technical field of large-scale mining excavator technique and specifically relates to a running gear and excavator of tight wheel, excavator.
Background
The existing tensioning wheel of the large mining excavator is a whole casting or forging, and when the wheel edge of the tensioning wheel is worn or damaged and cannot be normally used, the whole tensioning wheel is scrapped, so that great waste is caused, and the use cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a running gear and excavator of tight wheel, excavator to solve current tight wheel and damage whole condemned problem in the back at the rim.
In order to achieve the above object, the utility model provides a tension wheel, it includes wheel hub and annular rim, the rim cover is in outside the wheel hub, the rim with wheel hub passes through connecting piece detachably fixed connection.
The tension wheel as described above, wherein the rim is an integral structure or a segmented structure surrounded by multiple arc-shaped sub-rims, and one end of the hub abuts against one end of the rim.
The tightening wheel as described above, wherein an annular caulking groove is provided on an outer side wall of one end of the wheel hub, an annular flange is provided on an inner side wall of one end of the wheel rim, the flange is embedded in the caulking groove and abuts against a side wall of the caulking groove, and the flange is connected to the wheel hub through the connecting member.
The tightening wheel as described above, wherein an annular flange is provided on the outer side wall of one end of the hub, an annular caulking groove is provided on the inner side wall of one end of the rim, the flange is embedded in the caulking groove and abuts against the side wall of the caulking groove, and the flange is connected to the rim through the connecting member.
The tensioning wheel is characterized in that the wheel rim is of a segmented combined structure formed by enclosing a plurality of segments of circular arc-shaped sub-wheel rims, and two ends of the wheel hub respectively abut against two ends of the wheel rim.
The tensioning wheel as described above, wherein the outer side walls of the two ends of the wheel hub are respectively provided with an annular caulking groove, the inner side walls of the two ends of the wheel rim are respectively provided with an annular flange, the flanges at the two ends of the wheel rim are respectively embedded into the caulking grooves at the two ends of the wheel hub and abut against the side walls of the caulking grooves, and the flanges are connected with the wheel hub through the connecting piece.
The tensioning wheel as described above, wherein the outer side walls of the two ends of the hub are respectively provided with an annular flange, the inner side walls of the two ends of the rim are respectively provided with an annular caulking groove, the flanges at the two ends of the hub are respectively embedded into the caulking grooves at the two ends of the rim and abut against the side walls of the caulking grooves, and the flanges are connected with the rim through the connecting pieces.
The tension wheel as above wherein the outer side of the rim is a convex arcuate surface.
The utility model also provides a walking device of the excavator, which comprises a crawler frame, a tensioning shaft and the tensioning wheel, wherein the tensioning shaft passes through the crawler frame, the tensioning shaft is supported by the crawler frame and can rotate relative to the crawler frame, and the center of a hub of the tensioning wheel is provided with an axial through shaft hole; the tensioning shaft passes through the shaft hole of the tensioning wheel and is connected with the shaft hole, and the tensioning wheel drives the tensioning shaft to rotate when rotating; or a sliding bearing is embedded in a shaft hole of the tightening wheel, the tightening shaft penetrates through the sliding bearing, and the tightening wheel can rotate relative to the tightening shaft.
The utility model also provides an excavator, its running gear who includes foretell excavator.
The utility model discloses a running gear of straining wheel, excavator and excavator's characteristics and advantage are:
1. the utility model discloses a tension wheel is the split type structure that the rim cover constitutes outside the wheel hub, when the rim damages (like wearing and tearing) and can't normally use, only change the rim can, need not to change whole tension wheel, avoid the whole scrapping of tension wheel, reduce cost of maintenance and use cost;
2. the utility model discloses a straining wheel's simple structure, dismouting and easy maintenance are with low costs.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic view of an embodiment of a tension wheel of the present invention;
FIG. 2 is a schematic view of the hub of FIG. 1;
FIG. 3 is a side view of the tension wheel of FIG. 1;
fig. 4 is a schematic view of another embodiment of the tension wheel of the present invention;
fig. 5 is a side view of the tension wheel of fig. 4.
Main element number description:
1. a hub;
11. a shaft hole; 12. caulking grooves; 13. a first lightening hole; 14. a second lightening hole;
2. a rim; 21. a flange; 22. an outer side surface;
3. a connecting member.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Where the terms "first", "second", etc. are used for descriptive purposes only and not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, and "end" refers to a segment of the hub or rim immediately adjacent to (including) its end face.
As shown in fig. 1 and fig. 3, the utility model provides a tension wheel can be used to large-scale mining excavator, and this tension wheel is split type structure, and it includes wheel hub 1 and annular rim 2, and rim 2 overlaps outside wheel hub 1, perhaps the mutual intussusception of rim 2 and wheel hub 1, and rim 2 and wheel hub 1 pass through connecting piece 3 detachably fixed connection.
The utility model discloses a tension pulley is 2 covers split type structures that constitute outside wheel hub 1 for the rim, when rim 2 damages (like wearing and tearing) and during unable normal use, only change rim 2 can, need not to change whole tension pulley, avoid whole scrapping of tension pulley, reduce cost of maintenance and use cost.
Further, the hub 1 and the rim 2 are coaxially arranged.
Further, a shaft hole 11 is provided in the center of the hub 1 so as to penetrate axially.
Furthermore, the connecting piece 3 is a bolt or a screw, and has simple structure and convenient assembly and disassembly.
As shown in fig. 1, in the first embodiment, the rim 2 is a one-piece structure, and one end of the hub 1 abuts against one end of the rim 2 in the axial direction. During the installation, insert wheel hub 1 in wheel rim 2 along axial direction, withstand wheel hub 1's one end until wheel hub 1's one end, rethread connecting piece 3 with wheel hub 1 and 2 fixed connection of wheel rim, because 2 formula structures as an organic whole of wheel rim, simple structure, installation operation is very simple and convenient, and structural strength is big, and the cost of manufacture is low.
As shown in fig. 1 and 2, in this embodiment, in a possible technical solution, an annular caulking groove 12 is provided on an outer side wall of one end of the hub 1, an annular flange 21 is provided on an inner side wall of one end of the rim 2, the flange 21 is embedded in the caulking groove 12 and abuts against a side wall of the caulking groove 12, and the flange 21 is connected with the hub 1 through a connecting piece 3.
However, the present embodiment is not limited thereto, and in another possible technical solution, an annular flange is provided on the outer side wall of one end of the hub 1, an annular caulking groove is provided on the inner side wall of one end of the rim 2, the flange is embedded in the caulking groove and abuts against the side wall of the caulking groove, and the flange is connected with the rim 2 through the connecting piece 3.
In the second embodiment, the rim 2 is a segmented structure formed by surrounding a plurality of segments of circular arc-shaped sub-rims, and one end of the hub 1 abuts against one end of the rim 2 in the axial direction. During the installation, overlap each section sub-rim outside wheel hub 1 respectively, and make the one end of each section sub-rim withstand wheel hub 1's one end, rethread connecting piece 3 is with wheel hub 1 and each section sub-rim fixed connection, because rim 2 is split type structure, after a certain section or several sections sub-rims damage, only need change the sub-rim that damages can, need not to change whole rim 2, avoid rim 2 whole to scrap, reduce cost of maintenance and use.
In this embodiment, referring to the first embodiment, an annular caulking groove 12 is formed on the outer side wall of one end of the hub 1, an arc-shaped protrusion is formed on the inner side wall of one end of each section of the sub-rim, the protrusions on each section of the sub-rim surround to form an annular flange 21, and each protrusion abuts against the side wall of the caulking groove and is connected with the side wall of the caulking groove through a connecting piece 3; or, an annular flange is arranged on the outer side wall of one end of the hub 1, an arc-shaped groove is arranged on the inner side wall of one end of each section of the sub-rim, the grooves on each section of the sub-rim are enclosed to form an annular caulking groove, and the flange is abutted against the side wall of each groove and then connected through the connecting piece 3.
In the third embodiment, the rim 2 is a segmented structure surrounded by a plurality of circular arc-shaped sub-rims, and two ends of the hub 1 respectively abut against two ends of the rim 2 (i.e. each segment of sub-rim). When the wheel rim is installed, each section of the sub wheel rim is sleeved outside the wheel hub 1, two ends of each section of the sub wheel rim are respectively propped against two ends of the wheel hub 1, the wheel hub 1 and the wheel rim 2 are fixedly connected through the connecting piece 3, and the wheel rim 2 is of a split structure, so that after a certain section or a plurality of sections of the sub wheel rim are damaged, only the damaged sub wheel rim needs to be replaced, the whole wheel rim 2 does not need to be replaced, the integral scrapping of the wheel rim 2 is avoided, and the maintenance cost and the use cost are reduced; because the two ends of the hub 1 are respectively propped against the two ends of the rim 2, the axial positioning of the hub 1 and the rim 2 is more stable.
In this embodiment, in a feasible technical solution, the outer side walls at the two ends of the wheel hub 1 are respectively provided with an annular caulking groove, the inner side walls at the two ends of the wheel rim 2 are respectively provided with an annular flange, the flanges at the two ends of the wheel rim 2 are respectively embedded into the caulking grooves at the two ends of the wheel hub 1 and abut against the side walls of the caulking grooves, and the flanges are connected with the wheel hub 1 through the connecting piece 3. That is, the inner side walls at the two ends of each section of the wheel rim are respectively provided with an arc-shaped bulge, the bulges at the two ends of each section of the wheel rim respectively enclose an annular flange, and are respectively propped against the side wall of the caulking groove and are respectively connected with the wheel hub 1 through the connecting piece 3.
However, the present embodiment is not limited thereto, and in another possible technical solution, the outer side walls of the two ends of the hub 1 are respectively provided with an annular flange, the inner side walls of the two ends of the rim 2 are respectively provided with an annular caulking groove, the flanges of the two ends of the hub 1 are respectively embedded into the caulking grooves of the two ends of the rim 2 and abut against the side walls of the caulking grooves, and the flanges are connected with the rim 2 through the connecting member 3. That is, the inner side walls at the two ends of each section of the wheel rim are respectively provided with an arc-shaped groove, the grooves at the two ends of each section of the wheel rim respectively enclose an annular caulking groove, and the flange is propped against the side wall of each caulking groove and is connected with the wheel rim 2 through the connecting piece 3.
As shown in fig. 3, in the foregoing three embodiments, the rim 2 and the hub 1 are connected by the plurality of connecting members 3, and the plurality of connecting members 3 are arranged at intervals in a ring shape along the circumferential direction of the rim 2 or the hub 1. In particular, each connecting element 3 passes through the flange 21 and projects into the hub 1 or the rim 2.
As shown in fig. 1, in one embodiment, the outer side surface 22 of the rim 2 is a convex arc surface, that is, the outer side surface 22 of the rim 2 protrudes outward relative to the center of the rim 2, for example, the outer side surface 22 of the rim 2 is a smooth arc surface.
Further, in a state where the rim 2 is connected to the hub 1, both end faces of the rim 2 are flush with both end faces of the hub 1, respectively.
As shown in fig. 1 and 3, in one embodiment, the hub 1 is provided with a plurality of first lightening holes 13 to lighten the weight of the hub 1, the plurality of first lightening holes 13 are arranged at intervals in a ring shape along the circumferential direction of the hub 1, and each first lightening hole 13 penetrates through the hub 1 along the axial direction of the hub 1.
As shown in fig. 4 and 5, a plurality of second lightening holes 14 are further formed in the hub 1 to further reduce the weight of the hub 1, the plurality of second lightening holes 14 are annularly arranged at intervals along the circumferential direction of the hub 1 and correspond to the plurality of first lightening holes 13 one by one, each second lightening hole 14 extends in the radial direction of the hub 1, and each second lightening hole 14 is communicated with the corresponding first lightening hole 13.
The utility model discloses a tensioning wheel because 1 repeatedly usable of wheel hub uses the cubic to calculate according to the wheel hub part, can save raw materials expense more than 40%, and bolt or screw fastening connection, easy dismounting can save maintenance cost more than 70%, has greatly reduced use and cost of maintenance.
The utility model also provides a walking device of the excavator, which comprises a crawler frame, a tensioning shaft and the tensioning wheel, wherein the tensioning shaft passes through the crawler frame, the tensioning shaft is supported by the crawler frame and can rotate relative to the crawler frame, and the center of a hub 1 of the tensioning wheel is provided with an axial through shaft hole 11;
the tensioning shaft passes through the shaft hole 11 of the tensioning wheel and is connected with the shaft hole 11, and the tensioning wheel drives the tensioning shaft to rotate when rotating; or a sliding bearing is embedded in the shaft hole of the tensioning wheel, the tensioning shaft penetrates through the sliding bearing, and the tensioning wheel can rotate relative to the tensioning shaft.
The utility model discloses a running gear of excavator, through adopting split type straining wheel, when 2 damages (like wearing and tearing) of rim of straining wheel and during unable normal use, only change rim 2 can, need not to change whole straining wheel, avoid straining wheel whole to scrap, reduce cost of maintenance and use cost.
Specifically, one end of the crawler frame is provided with a first supporting frame and a second supporting frame which are arranged at intervals, the tensioning wheel is arranged between the first supporting frame and the second supporting frame, the tensioning shaft penetrates through an adjusting seat on the first supporting frame and a shaft hole 11 of a hub 1 of the tensioning wheel, and the other end of the tensioning shaft is connected with an adjusting seat on the second supporting frame.
Further, the tensioning shaft is connected with the shaft hole 11 of the tensioning wheel through a key connection or through a sliding bearing.
Further, the tensioning shaft is connected with the crawler frame through the adjusting seat, or the crawler frame supports the tensioning shaft through the adjusting seat.
The utility model also provides an excavator, it is large-scale mining excavator, and it includes foretell running gear.
The utility model discloses an excavator, through adopting split type tension pulley, when 2 damages (like wearing and tearing) of rim of tension pulley and during unable normal use, only change rim 2 can, need not to change whole tension pulley, avoid the whole scrapping of tension pulley, reduce cost of maintenance and use cost.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention. Moreover, it should be noted that the components of the present invention are not limited to the above-mentioned integral application, and various technical features described in the present invention can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention of the present invention.
Claims (10)
1. The tension wheel is characterized by comprising a hub and an annular flange, wherein the flange is sleeved outside the hub, and the flange and the hub are detachably and fixedly connected through a connecting piece.
2. The tension wheel as in claim 1, wherein the rim is a unitary structure or a segmented structure surrounded by a plurality of segments of circular arc shaped sub-rims, one end of the hub abutting one end of the rim.
3. A tension wheel as claimed in claim 2 wherein the hub has an annular rebate on the outer side wall at one end and the rim has an annular flange on the inner side wall at one end, the flange engaging the rebate and abutting the side wall of the rebate, the flange being connected to the hub by the connection means.
4. A tension wheel as claimed in claim 2 wherein the hub has an annular flange on the outer side wall at one end and the rim has an annular rebate on the inner side wall at one end, the flange engaging the rebate and abutting the rebate side wall, the flange being connected to the rim by the connecting member.
5. A tension wheel as claimed in claim 1 wherein the rim is of segmented composite construction surrounded by a plurality of arcuate segments of the rim, the ends of the hub abutting the ends of the rim respectively.
6. A tension wheel as claimed in claim 5, wherein the hub is provided with annular grooves on the outer side walls at both ends thereof, and annular flanges on the inner side walls at both ends of the rim, the flanges at both ends of the rim being inserted into the grooves at both ends of the hub and abutting against the side walls of the grooves, the flanges being connected to the hub through the connecting members.
7. A tension wheel as claimed in claim 5, wherein the outer side walls of the ends of the hub are provided with respective annular flanges, the inner side walls of the ends of the rim are provided with respective annular caulking grooves, the flanges of the ends of the hub are fitted into the caulking grooves of the ends of the rim and abut against the side walls of the caulking grooves, and the flanges are connected to the rim through the connecting members.
8. The tension wheel of any one of claims 1 to 7 wherein the outer side of the rim is a convex arcuate surface.
9. A traveling device of an excavator, comprising a track frame, a tension shaft and the tension wheel of any one of claims 1 to 8, wherein the tension shaft passes through the track frame, the tension shaft is supported by the track frame and can rotate relative to the track frame, and an axial hole is formed in the center of a hub of the tension wheel and penetrates axially;
the tensioning shaft passes through the shaft hole of the tensioning wheel and is connected with the shaft hole, and the tensioning wheel drives the tensioning shaft to rotate when rotating; or a sliding bearing is embedded in a shaft hole of the tightening wheel, the tightening shaft penetrates through the sliding bearing, and the tightening wheel can rotate relative to the tightening shaft.
10. An excavator, characterized in that the excavator comprises the walking device of the excavator of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020104295.8U CN211568137U (en) | 2020-01-17 | 2020-01-17 | Tensioning wheel, walking device of excavator and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020104295.8U CN211568137U (en) | 2020-01-17 | 2020-01-17 | Tensioning wheel, walking device of excavator and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211568137U true CN211568137U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020104295.8U Active CN211568137U (en) | 2020-01-17 | 2020-01-17 | Tensioning wheel, walking device of excavator and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211568137U (en) |
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2020
- 2020-01-17 CN CN202020104295.8U patent/CN211568137U/en active Active
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