CN211898615U - Variable cross-section dozer blade wear-resisting block and dozer blade - Google Patents
Variable cross-section dozer blade wear-resisting block and dozer blade Download PDFInfo
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- CN211898615U CN211898615U CN202020411584.2U CN202020411584U CN211898615U CN 211898615 U CN211898615 U CN 211898615U CN 202020411584 U CN202020411584 U CN 202020411584U CN 211898615 U CN211898615 U CN 211898615U
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Abstract
A variable cross-section dozer blade wear-resisting block and a dozer blade comprise a wear-resisting block body and a double-circle bolt hole, wherein the wear-resisting block body is of a strip-shaped plate structure, and the vertical cross section of the wear-resisting block body is a variable cross section with a narrow top and a wide bottom; the upper part of the wear-resistant block body is provided with a preset number of countersunk head screw holes; the inner wall of the countersunk head screw hole is provided with a limiting groove; the scraper comprises a variable-section dozer blade wear-resistant block and a scraper knife body, wherein the lower part of the scraper knife body is provided with a preset number of connecting screw holes; the abrasion-resistant block of the dozer blade is fixedly connected with the scraper knife body through a connecting bolt which penetrates through the countersunk head screw hole and the connecting screw hole; the connecting bolt comprises a bolt body and a limiting bulge matched with the limiting groove; the utility model improves the service life of the product through the optimization of the structure; spacing being the circular arc groove, can directly processing through the drilling machine, machining efficiency is higher, and the rotation of screwing up in-process bolt can be avoided in the cooperation of spacing arch and spacing groove.
Description
The technical field is as follows:
the utility model belongs to the technical field of the dozer blade technique and specifically relates to a wear-resisting piece of variable cross section dozer blade and dozer blade that says so.
Background art:
all vehicles such as a forklift, a land leveler and a part of an excavator are provided with a scraper knife for shoveling soil and leveling a road surface; when the scraper knife works on hard soil or soil doped with broken stones and bricks, the scraper knife can be quickly abraded and even directly damaged. In order to save cost and prevent the scraper from being damaged, the whole scraper knife body is replaced, most of the existing methods are that a strip-shaped or a plurality of wear-resisting plates which are connected in parallel are independently installed at the lowermost part of the scraper knife body, and the common connection mode is bolt connection. The bolt tip is the hexagonal prism body, and in order not to take place the rotation of bolt at the screw bolt nut in-process, the through-hole of antifriction plate generally all adopts the elder generation to bore the round hole, then shifts into and dashes the square process, punches the square hole on the round hole, shifts to the milling bore process after dashing the square hole, mills the groove.
According to the test and the customer feedback, the wear of the upper part of the wear-resisting plate fixed with the cutter body is small, and generally, when the lower part of the wear-resisting plate is seriously worn and can not be used continuously, the upper part is still almost not worn. Most of the existing wear-resisting plates are relatively single arc-shaped plates, the upper thickness and the lower thickness of the existing wear-resisting plates are the same, and the easily worn area at the lower part is not particularly reinforced.
The utility model has the following contents:
in order to solve the problems, the utility model overcomes the defects of the prior art, and provides a variable cross-section dozer blade wear-resisting block and a dozer blade with long service life and convenient processing.
In order to achieve the purpose, the wear-resistant block of the variable cross-section dozer blade provided by the utility model comprises a wear-resistant block body and a double-circle bolt hole, wherein the wear-resistant block body is of a strip-shaped plate structure, and the vertical cross section of the wear-resistant block body is a variable cross section with a narrow top and a wide bottom; the upper part of the wear-resistant block body is provided with a preset number of countersunk head screw holes; and a limiting groove is formed in the inner wall of the countersunk head screw hole.
Furthermore, the central axis of the countersunk head screw hole is perpendicular to the surface of the wear-resistant block body.
Further, the cross section of the wear-resistant block body is of an arc-shaped structure.
Furthermore, the horizontal section of the limiting groove is arc-shaped.
Further, the vertical section of the wear-resistant block body is a variable section with a step structure.
A dozer blade comprises the variable cross-section dozer blade wear-resistant block and a scraper knife body, wherein the scraper knife body is of a plate-shaped structure, and the lower part of the scraper knife body is provided with a preset number of connecting screw holes; the abrasion-resistant block of the dozer blade is fixedly connected with the scraper knife body through a connecting bolt which penetrates through the countersunk head screw hole and the connecting screw hole; the connecting bolt comprises a bolt body and a limiting protrusion matched with the limiting groove.
Further, a step structure matched with the step variable cross section of the wear-resistant block body is arranged on the front side of the lower portion of the scraper knife body.
The utility model has the advantages that: the wear-resistant block of the variable cross-section dozer blade provided by the utility model has the advantages that the part with less friction of the wear-resistant block becomes thinner, the part with serious wear is thickened, the material with the same material and weight as the existing wear-resistant block is used, and the service life of the product is prolonged through the optimization of the structure; the step structure design of the wear-resistant block and the scraper knife body improves the service life and plays a role in limiting, so that the shearing force borne by the connecting bolt is reduced; the limit is an arc groove, the groove milling process can be directly carried out after the drilling process, the square punching process is omitted, the machining efficiency is higher, and the rotation of the bolt in the screwing process can be avoided due to the cooperation of the limit protrusion and the limit groove.
Description of the drawings:
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the vertical cross-section structure of the present invention;
FIG. 3 is a schematic structural view in the A-A viewing angle direction of the present invention;
FIG. 4 is a schematic structural view of the connecting bolt of the present invention;
FIG. 5 is a schematic structural view of the blade of the present invention;
FIG. 6 is a schematic view of a partially enlarged structure of the blade of the present invention;
in the drawings: 1. wear-resisting piece body, 2, two round bolt holes, 3, spacing groove, 4, bolt body, 5, spacing arch, 6, spiller body.
The specific implementation mode is as follows:
in order to make the purpose, technical solution and advantages of the present invention clearer, the drawings of the present invention will be combined below, right to the present invention perform more detailed description.
In the description of the present invention, it should be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in the attached drawings 1-3, the variable cross-section dozer blade wear-resistant block comprises a wear-resistant block body 1 and a double-circle bolt hole 2, wherein the wear-resistant block body 1 is of a strip-shaped plate structure, and the vertical cross section of the wear-resistant block body 1 is a variable cross section with a narrow top and a wide bottom; the upper part of the wear-resistant block body 1 is provided with a preset number of countersunk head screw holes; the inner wall of the countersunk head screw hole is provided with a limiting groove 3.
The central axis of the countersunk head screw hole is vertical to the surface of the wear-resistant block body 1.
The cross section of the wear-resistant block body 1 is of an arc-shaped structure.
The horizontal section of the limiting groove 3 is arc-shaped.
The vertical section of the wear-resistant block body 1 is a variable section with a step structure.
As shown in fig. 4-6, a blade comprises the variable cross-section blade wear-resistant block and a blade body 6, wherein the blade body 6 is a plate-shaped structure, and a preset number of connection screw holes are formed in the lower part of the blade body 6; the abrasion-resistant block of the dozer blade is fixedly connected with the scraper knife body 6 through a connecting bolt which penetrates through the countersunk head screw hole and the connecting screw hole; the connecting bolt comprises a bolt body 4 and a limiting protrusion 5 matched with the limiting groove 3.
The front side of the lower part of the scraper knife body 6 is provided with a step structure matched with the step variable cross section of the wear-resistant block body 1.
Specifically, during installation, a countersunk screw hole in the wear-resistant block is aligned with a connecting screw hole in the scraper knife body 6, then a connecting bolt is inserted into the countersunk screw hole, the limiting protrusion 5 is inserted into the limiting groove 3, and then a nut is screwed on the rear part of the scraper knife body 6. The variable cross-section dozer blade wear-resistant block has the advantages that the part with less friction of the wear-resistant block is thinned, the part with serious wear is thickened, materials with the same material and weight as those of the existing wear-resistant block are used, and the service life of the product is prolonged through structural optimization; the step structure design of the wear-resistant block and the scraper knife body 6 improves the service life, plays a role in limiting and reduces the shearing force borne by the connecting bolt; the limiting part is an arc groove, the groove milling process can be directly carried out after the drilling process, the square punching process is omitted, and the rotation of the bolt in the screwing process can be avoided due to the matching of the limiting protrusion 5 and the limiting groove 3.
Except for the technical features described in the specification, the method is known to the technical personnel in the field.
Claims (7)
1. A variable cross-section dozer blade wear-resistant block comprises a wear-resistant block body (1) and a double-circle bolt hole (2), and is characterized in that the wear-resistant block body (1) is of a strip-shaped plate-shaped structure, and the vertical cross section of the wear-resistant block body (1) is a variable cross section with a narrow top and a wide bottom; the upper part of the wear-resistant block body (1) is provided with a preset number of countersunk head screw holes; the inner wall of the countersunk head screw hole is provided with a limiting groove (3).
2. The wear-resistant block of the variable cross-section dozer blade of claim 1, characterized in that the central axis of the countersunk screw hole is perpendicular to the surface of the wear-resistant block body (1).
3. The wear-resistant block of the variable cross-section dozer blade of claim 1, characterized in that the cross section of the wear-resistant block body (1) is of an arc structure.
4. The wear-resistant block of a variable-section dozer blade of claim 1, characterized in that the horizontal section of the limiting groove (3) is circular arc-shaped.
5. The variable-section dozer blade wear block as claimed in claim 1 characterized in that said wear block body (1) vertical section is a variable section of a stepped structure.
6. A dozer blade, comprising the variable cross-section dozer blade wear-resisting block and the scraper knife body (6) of any one of claims 1 to 5, characterized in that the scraper knife body (6) is a plate-shaped structure, and the lower part of the scraper knife body (6) is provided with a preset number of connecting screw holes; the abrasion-resistant block of the dozer blade is fixedly connected with the scraper knife body (6) through a connecting bolt which penetrates through the countersunk head screw hole and the connecting screw hole; the connecting bolt comprises a bolt body (4) and a limiting bulge (5) matched with the limiting groove (3).
7. The blade according to claim 6, characterized in that the front side of the lower part of the blade body (6) is provided with a step structure which is matched with the step variable cross section of the wear-resistant block body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020411584.2U CN211898615U (en) | 2020-03-27 | 2020-03-27 | Variable cross-section dozer blade wear-resisting block and dozer blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020411584.2U CN211898615U (en) | 2020-03-27 | 2020-03-27 | Variable cross-section dozer blade wear-resisting block and dozer blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211898615U true CN211898615U (en) | 2020-11-10 |
Family
ID=73275630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020411584.2U Active CN211898615U (en) | 2020-03-27 | 2020-03-27 | Variable cross-section dozer blade wear-resisting block and dozer blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211898615U (en) |
-
2020
- 2020-03-27 CN CN202020411584.2U patent/CN211898615U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A variable cross section bulldozer wear block and bulldozer Effective date of registration: 20210508 Granted publication date: 20201110 Pledgee: China Postal Savings Bank Co.,Ltd. Jining Branch Pledgor: Shandong Juning Machinery Co.,Ltd. Registration number: Y2021980003376 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220513 Granted publication date: 20201110 Pledgee: China Postal Savings Bank Co.,Ltd. Jining Branch Pledgor: Shandong Juning Machinery Co.,Ltd. Registration number: Y2021980003376 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A variable cross-section bulldozer wear block and bulldozer Effective date of registration: 20220519 Granted publication date: 20201110 Pledgee: China Postal Savings Bank Co.,Ltd. Jining Branch Pledgor: Shandong Juning Machinery Co.,Ltd. Registration number: Y2022980005907 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230420 Granted publication date: 20201110 Pledgee: China Postal Savings Bank Co.,Ltd. Jining Branch Pledgor: Shandong Juning Machinery Co.,Ltd. Registration number: Y2022980005907 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A variable cross-section bulldozer wear-resistant block and bulldozer Effective date of registration: 20230510 Granted publication date: 20201110 Pledgee: China Postal Savings Bank Co.,Ltd. Jining Branch Pledgor: Shandong Juning Machinery Co.,Ltd. Registration number: Y2023980040187 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |