CN211417438U - Sprocket tooth block of crawler excavator - Google Patents
Sprocket tooth block of crawler excavator Download PDFInfo
- Publication number
- CN211417438U CN211417438U CN201921919406.4U CN201921919406U CN211417438U CN 211417438 U CN211417438 U CN 211417438U CN 201921919406 U CN201921919406 U CN 201921919406U CN 211417438 U CN211417438 U CN 211417438U
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- wheel disc
- tooth
- sprocket
- crawler excavator
- crawler
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Abstract
The utility model discloses a sprocket tooth piece of crawler-type excavator, the electric iron comprises an axle sleeve, the axle sleeve includes the shaft hole, be provided with the keyway in the shaft hole, the circumference lateral wall on be provided with the rim plate, the edge ring array of rim plate distributes and has a plurality of tooth pieces, tooth piece demountable installation is on the rim plate, the radial cross-section of rim plate is by being close to the outside wedge structure that narrows down gradually of axle sleeve end. The utility model relates to a simple structure, easy dismounting practices thrift the sprocket tooth piece of crawler-type excavator of cost.
Description
Technical Field
The utility model relates to a machine part technical field specifically is sprocket tooth piece of crawler excavator.
Background
After a sprocket tooth block of an existing crawler excavator is damaged, a sprocket needs to be integrally replaced, a sprocket assembly comprising a sprocket ring, a sprocket body and a sprocket shaft is detached from a machine part to detach the sprocket ring after a sprocket ring for replacing a large sprocket, maintenance is very inconvenient, and maintenance and replacement cost is very high. In the actual use process, the main lifting device of the chain wheel is usually intact, only the tooth block is abraded, and the whole chain wheel replacement causes great waste. Therefore, there is a need for a new sprocket block for a crawler excavator that overcomes the above-mentioned deficiencies.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sprocket tooth piece of crawler-type excavator to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the sprocket tooth block of the crawler excavator comprises a shaft sleeve, wherein the shaft sleeve comprises a shaft hole, a key groove is formed in the shaft hole, a wheel disc is arranged on the outer side wall of the circumference of the shaft sleeve, a plurality of tooth blocks are distributed on the edge of the wheel disc in an annular array mode, the tooth blocks are detachably mounted on the wheel disc, and the radial section of the wheel disc is of a wedge-shaped structure which is gradually narrowed from the end close to the shaft sleeve outwards.
Preferably, a plurality of countersunk holes are distributed on the front end face and the rear end face of the wheel disc in an annular array manner, the tooth blocks are fixedly connected to the wheel disc through countersunk screws, and the heads of the countersunk screws are positioned in the countersunk holes.
Preferably, the tooth block is provided with a clamping joint, and the wheel disc is provided with a plurality of clamping grooves matched with the clamping joint.
Preferably, the clamping joint is provided with a reinforcing rib along the tangential direction of the circumference of the wheel disc.
Preferably, the clamping head is provided with a wedge-shaped inclined surface which inclines from the end close to the tooth block to the end far from the tooth block.
Preferably, threaded holes are formed in the front side wall and the rear side wall of the clamping connector, a through hole is formed between the counter sink on the wheel disc and the clamping groove, the counter sink is arranged in the through hole in a penetrating mode, and the tail end of the counter sink is connected with the threaded holes in a threaded mode.
Preferably, a plurality of hollow holes are distributed in the annular array on the wheel disc.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in, tooth piece demountable installation on the rim plate, during the use, the tooth piece only need be changed after damaging the tooth piece can, need not whole change sprocket, the radial cross-section of rim plate is by being close to the outside wedge structure that narrows down gradually of axle sleeve end, and above-mentioned structure makes the rim plate have good intensity and rigidity. The countersunk head screw is convenient to disassemble and assemble, and can not interfere other parts. The clamping joint is matched with the clamping groove in a clamping manner, and the installation is convenient. The reinforcing ribs can improve the strength of the tooth blocks along the tangential direction of the circumference of the wheel disc. The wedge-shaped inclined surface is convenient for the clamping joint to be matched with the clamping groove in a clamping manner. The countersunk head screw is in threaded connection with the threaded hole, so that the tooth block can be detachably mounted. The hollow holes can reduce the weight under the condition of not influencing the strength and the rigidity of the wheel disc. The utility model relates to a simple structure, easy dismounting practices thrift the sprocket tooth piece of crawler-type excavator of cost.
Drawings
FIG. 1 is a schematic structural view of a sprocket block of a crawler excavator;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 2;
fig. 4 is a partial enlarged view of fig. 2 at K.
In the figure: 1-shaft sleeve, 2-shaft hole, 3-key groove, 4-wheel disc, 5-hollowed hole, 6-tooth block, 7-clamping joint, 8-wedge-shaped inclined plane, 9-reinforcing rib, 10-countersunk hole, 11-perforation, 12-threaded hole, 13-countersunk screw and 14-clamping groove.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution:
the sprocket tooth block of the crawler excavator comprises a shaft sleeve 1, wherein the shaft sleeve 1 comprises a shaft hole 2, a key groove 3 is formed in the shaft hole 2, a wheel disc 4 is arranged on the outer side wall of the circumference of the shaft sleeve 1, a plurality of tooth blocks 6 are distributed on the edge of the wheel disc 4 in an annular array mode, the tooth blocks 6 are detachably mounted on the wheel disc 4, and the radial cross section of the wheel disc 4 is of a wedge-shaped structure which is gradually narrowed from the end close to the shaft sleeve 1 outwards.
Preferably, a plurality of countersunk holes 10 are distributed on the front end face and the rear end face of the wheel disc 4 in an annular array manner, the tooth block 6 is fixedly connected to the wheel disc 4 through countersunk screws 13, and the heads of the countersunk screws 13 are positioned in the countersunk holes 10.
The countersunk head screw 13 is convenient to disassemble and assemble, and does not interfere with other parts.
Preferably, the tooth block 6 is provided with a clamping head 7, and the wheel disc 4 is provided with a plurality of clamping grooves 14 matched with the clamping head 7.
The clamping head 7 is matched with the clamping groove 14 in a clamping mode, and the installation is convenient.
Preferably, the snap tabs 7 are provided with reinforcing ribs 9 in a tangential direction to the circumference of the wheel disc 4.
The ribs 9 increase the strength of the tooth mass 6 in the tangential direction of the circumference of the wheel disc 4.
Preferably, the snap joint 7 is provided with a wedge-shaped inclined surface 8 which is inclined from the end close to the tooth block 6 to the end far from the tooth block 6.
The wedge-shaped slope 8 facilitates the snap fit of the snap connector 7 with the snap groove 14.
Preferably, threaded holes 12 are formed in front and rear side walls of the clamping head 7, a through hole 11 is formed between a counter bore 10 in the wheel disc 4 and the clamping groove 14, a counter screw 13 is arranged in the through hole 11 in a penetrating manner, and the tail end of the counter screw 13 is in threaded connection with the threaded hole 12.
The countersunk head screw 13 is in threaded connection with the threaded hole 12, so that the tooth block 6 can be detachably mounted.
Preferably, a plurality of hollowed-out holes 5 are distributed on the wheel disc 4 in an annular array.
The hollow holes 5 can reduce the weight without influencing the strength and the rigidity of the wheel disc.
The utility model discloses a theory of operation is: tooth piece 6 demountable installation is on rim plate 4, during the use, tooth piece 6 damage back only need change tooth piece 6 can, need not whole change sprocket, rim plate 4's radial cross-section is by being close to the wedge structure that axle sleeve 1 end outwards narrows down gradually, and above-mentioned structure makes rim plate 4 have good intensity and rigidity. The countersunk head screw 13 is convenient to disassemble and assemble, and does not interfere with other parts. The clamping head 7 is matched with the clamping groove 14 in a clamping mode, and the installation is convenient. The ribs 9 increase the strength of the tooth mass 6 in the tangential direction of the circumference of the wheel disc 4. The wedge-shaped slope 8 facilitates the snap-fit of the snap connector 7 with the snap groove 14. The countersunk head screw 13 is in threaded connection with the threaded hole 12, so that the tooth block 6 can be detachably mounted. The hollow holes 5 can reduce the weight without influencing the strength and the rigidity of the wheel disc.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. Sprocket tooth piece of crawler-type excavator, including axle sleeve (1), its characterized in that: the shaft sleeve (1) comprises a shaft hole (2), a key groove (3) is formed in the shaft hole (2), a wheel disc (4) is arranged on the outer side wall of the circumference of the shaft sleeve (1), a plurality of tooth blocks (6) are distributed on the edge of the wheel disc (4) in an annular array mode, the tooth blocks (6) are detachably mounted on the wheel disc (4), and the radial section of the wheel disc (4) is of a wedge-shaped structure which is gradually narrowed from the end close to the shaft sleeve (1).
2. The crawler excavator sprocket block according to claim 1, wherein: a plurality of counter bores (10) are distributed on the front end face and the rear end face of the wheel disc (4) in an annular array mode, the tooth block (6) is fixedly connected to the wheel disc (4) through counter screws (13), and the heads of the counter screws (13) are located in the counter bores (10).
3. The crawler excavator sprocket block according to claim 2, wherein: the gear block (6) is provided with a clamping joint (7), and the wheel disc (4) is provided with a plurality of clamping grooves (14) matched with the clamping joint (7).
4. The crawler excavator sprocket block according to claim 3, wherein: and the clamping joint (7) is provided with a reinforcing rib (9) along the tangential direction of the circumference of the wheel disc (4).
5. The crawler excavator sprocket block according to claim 3, wherein: the clamping joint (7) is provided with a wedge-shaped inclined surface (8) which inclines from the end close to the tooth block (6) to the end far away from the tooth block (6).
6. The crawler excavator sprocket block according to claim 3, wherein: threaded holes (12) are formed in the front side wall and the rear side wall of the clamping joint (7), through holes (11) are formed between counter bores (10) in the wheel disc (4) and clamping grooves (14), counter screws (13) penetrate through the through holes (11), and the tail ends of the counter screws (13) are connected into the threaded holes (12) in a threaded mode.
7. The crawler excavator sprocket block according to claim 3, wherein: a plurality of hollow holes (5) are distributed on the wheel disc (4) in an annular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921919406.4U CN211417438U (en) | 2019-11-07 | 2019-11-07 | Sprocket tooth block of crawler excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921919406.4U CN211417438U (en) | 2019-11-07 | 2019-11-07 | Sprocket tooth block of crawler excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211417438U true CN211417438U (en) | 2020-09-04 |
Family
ID=72249370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921919406.4U Active CN211417438U (en) | 2019-11-07 | 2019-11-07 | Sprocket tooth block of crawler excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211417438U (en) |
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2019
- 2019-11-07 CN CN201921919406.4U patent/CN211417438U/en active Active
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