CN209908610U - Novel belt wheel train structure - Google Patents
Novel belt wheel train structure Download PDFInfo
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- CN209908610U CN209908610U CN201920467108.XU CN201920467108U CN209908610U CN 209908610 U CN209908610 U CN 209908610U CN 201920467108 U CN201920467108 U CN 201920467108U CN 209908610 U CN209908610 U CN 209908610U
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- belt
- pulley
- crankshaft
- guide rod
- generator
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Abstract
The utility model relates to the technical field of engines, and discloses a novel belt wheel train structure, which comprises a crankshaft pulley fixedly connected with a crankshaft on an engine, a fan pulley connected with a water pump fixed on an engine box body, a generator pulley connected with a generator fixed on the engine box body, a crankshaft belt and a generator belt, wherein the crankshaft belt is tensioned on the crankshaft pulley and the fan pulley, and the generator belt is tensioned on the fan pulley and the generator pulley; and an automatic adjusting tensioning mechanism is arranged on the inner side of the loose edge of the crankshaft belt and close to the crankshaft belt pulley. The double-groove belt pulley has the advantages that the double-groove belt pulley adopts two belts and a crankshaft belt pulley, the serious belt abrasion phenomenon in the market can be effectively solved, the transmission system is more stable, the vibration noise is small, the reliability is good, the performance is stable, and the quality of a non-road mobile mechanical product is improved.
Description
The technical field is as follows:
the utility model relates to the technical field of engines, concretely relates to novel belt train structure.
Background art:
with the rapid development of national economy in China, the requirements of various industries on the non-road mobile mechanical performance are higher and higher. Non-road mobile machines mainly include construction machines, agricultural machines, forestry machines and airport ground service equipment. Meanwhile, since the world, a large number of foreign engineering machines and agricultural machines enter China, great impact is caused to the engineering machine and agricultural machine industries in China, and the improvement of the quality of the engineering machine and agricultural machine products in China is urgent. However, non-road mobile mechanical products in China generally have the defects of unstable reliability, serious belt abrasion and large vibration noise. Although there are many factors that affect the performance of off-road mobile machinery, the key is the kit such as engine, generator, hydraulic system, etc. and the pulley system structure is also an important reason.
The utility model has the following contents:
the utility model aims at overcoming prior art's not enough, providing a novel belt train structure, it has adopted the double flute with two belts and crank pulley, can effectively solve the serious phenomenon of belt wearing and tearing on the market, and is more stable on the transmission system, and its vibration small in noise, good reliability, stable performance improve the quality of the portable mechanical product of non-road.
The utility model provides a technical problem's scheme is:
a novel belt wheel train structure comprises a crankshaft belt pulley fixedly connected with a crankshaft on an engine, a fan belt pulley connected with a water pump fixed on an engine box body, a generator belt pulley connected with a generator fixed on the engine box body, a crankshaft belt and a generator belt, wherein the crankshaft belt is tensioned on the crankshaft belt pulley and the fan belt pulley, and the generator belt is tensioned on the fan belt pulley and the generator belt pulley; and an automatic adjusting tensioning mechanism is arranged on the inner side of the loose edge of the crankshaft belt and close to the crankshaft belt pulley.
The automatic tensioning mechanism comprises a base fixed on a gear chamber cover on an engine box body, a sliding seat is connected to the base in a sliding mode, a tensioning wheel is hinged to the sliding seat, and the tensioning wheel is pressed against the inner side of a loose edge of a crankshaft belt; be equipped with elastomeric element between the base lateral wall of keeping away from the loose limit of crankshaft belt and the sliding seat lateral wall of keeping away from the loose limit of crankshaft belt, elastomeric element includes a plurality of range upon range of dish type springs.
A rectangular groove is formed in the side wall of the sliding seat far away from the loose edge of the crankshaft belt, a counter bore is formed in the bottom surface of the rectangular groove, a spring and a first guide rod are sleeved in the counter bore, the spring is clamped between the bottom surface of the counter bore and the end part of one end of the first guide rod, and the first guide rod penetrates through the extending end of the counter bore and is inserted and sleeved in the disc-shaped spring; the side wall of the base far away from the loose edge of the crankshaft belt is in threaded connection with an adjusting rod, a boss and a second guide rod are formed on the adjusting rod, the second guide rod is inserted in the disc spring in a sleeved mode, the end portion of the second guide rod is pressed against the first guide rod, and the disc springs which are stacked in a stacked mode are clamped between the boss and the bottom face of the rectangular groove.
The crankshaft belt is a combined triangular belt; the crankshaft pulley is a double-groove pulley.
And a third guide rod is formed on the second guide rod, a guide hole matched with the third guide rod is formed on the first guide rod, and the third guide rod is inserted and sleeved in the guide hole.
And a mounting hole for fixing the fan is formed on the fan belt pulley.
The base is provided with two parallel sliding rails, the sliding seat is provided with a sliding groove matched with the sliding rails, and the sliding rails are inserted in the sliding groove.
The utility model discloses an outstanding effect is:
compared with the prior art, the double-groove belt pulley has the advantages that the double-groove belt pulley adopts two belts and the double-groove belt pulley, the serious belt abrasion phenomenon in the market can be effectively solved, the transmission system is more stable, the vibration noise of the double-groove belt pulley is small, the reliability is good, the performance is stable, and the quality of a non-road mobile mechanical product is improved.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a right side view of the present invention;
FIG. 3 is a cross-sectional view of FIG. 1 taken about A-A;
fig. 4 is a cross-sectional view of fig. 3 taken about B-B.
The specific implementation mode is as follows:
in the embodiment, as shown in fig. 1 to 4, a novel belt wheel train structure comprises a crankshaft pulley 1 fixedly connected with a crankshaft on an engine, a fan pulley 2 connected with a water pump fixed on an engine box, a generator pulley 3 connected with a generator fixed on the engine box, a crankshaft belt 4 and a generator belt 5, wherein the crankshaft belt 4 is tensioned on the crankshaft pulley 1 and the fan pulley 2, and the generator belt 5 is tensioned on the fan pulley 2 and the generator pulley 3; and an automatic adjusting tensioning mechanism 6 is arranged on the inner side of the loose edge of the crankshaft belt 4 and close to the crankshaft belt pulley 1.
More specifically, the automatic adjusting tensioning mechanism 6 comprises a base 61 fixed on a gear chamber cover on the engine box body, a sliding seat 62 is connected on the base 61 in a sliding manner, a tensioning wheel 63 is hinged on the sliding seat 62, and the tensioning wheel 63 is pressed on the inner side of the loose edge of the crankshaft belt 4; an elastic member is provided between the side wall of the base 61 remote from the slack side of the crank belt 4 and the side wall of the sliding seat 62 remote from the slack side of the crank belt 4, and the elastic member includes a plurality of stacked disc springs 64.
Furthermore, a rectangular groove 621 is formed in the side wall of the sliding seat 62 far away from the loose edge of the crankshaft belt 4, a counter bore 622 is formed in the bottom surface of the rectangular groove 621, a spring 65 and a first guide rod 66 are sleeved in the counter bore 622, the spring 65 is clamped between the bottom surface of the counter bore 622 and one end of the first guide rod 66, and the first guide rod 66 penetrates through the extending end of the counter bore 622 and is inserted in the disc spring 64; an adjusting rod 67 is screwed on the side wall of the base 61 far away from the loose edge of the crank belt 4, a boss 671 and a second guide rod 672 are formed on the adjusting rod 67, the second guide rod 672 is inserted in the disc spring 64, the end part of the second guide rod 672 is pressed against the first guide rod 66, and the plurality of stacked disc springs 64 are clamped between the boss 671 and the bottom surface of the rectangular groove 621.
Furthermore, the crankshaft belt 4 is a combined triangular belt; the crankshaft pulley 1 is a double-groove pulley.
Further, the second guide bar 672 is formed with a third guide bar 673, the first guide bar 66 is formed with a guide hole 661 engaged with the third guide bar 673, and the third guide bar 673 is inserted into the guide hole 661.
Further, the fan pulley 2 is formed with a mounting hole 201 for fixing the fan.
Furthermore, two parallel sliding rails 611 are formed on the base 61, a sliding groove 623 matching with the sliding rails 611 is formed on the sliding seat 62, and the sliding rails 611 are inserted in the sliding groove 623.
The working principle is as follows: the crankshaft belt pulley 1 drives the fan belt pulley to rotate through a crankshaft belt 4, and the fan belt pulley drives the generator belt pulley 3 to rotate through a generator belt 5, so that a water pump, a fan, a generator and the like are driven to work; principle of automatically adjusting the tensioning mechanism: the sliding seat 62 is pushed to approach the loose edge of the crankshaft belt 4 under the action of the disc spring 64, the sliding seat 62 drives the tension pulley 63 to approach the loose edge of the crankshaft belt 4, the tension pulley 63 is pressed on the crankshaft belt 4, when the crankshaft belt 4 is loose, the disc spring 64 recovers a point to enable the tension pulley 63 to be pressed on the crankshaft belt 4 all the time, the automatic tensioning function is achieved, the adjusting rod 67 is rotated, the adjusting rod 67 drives the boss 671 to move, the elastic deformation of the disc spring 64 is changed by changing the distance between the boss 671 and the bottom surface of the rectangular groove 621, and the tension force of the crankshaft belt on the tension pulley can be changed.
Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (7)
1. The utility model provides a novel belt wheel train structure, includes crank pulley (1) with bent axle fixed connection on the engine, fan pulley (2) be connected with the water pump of fixing on the engine box, fix generator pulley (3), crank belt (4) and generator belt (5) that generator on the engine box is connected, its characterized in that: the crankshaft belt (4) is tensioned on the crankshaft belt pulley (1) and the fan belt pulley (2), and the generator belt (5) is tensioned on the fan belt pulley (2) and the generator belt pulley (3); and an automatic adjusting tensioning mechanism (6) is arranged on the inner side of the loose edge of the crankshaft belt (4) and close to the crankshaft belt pulley (1).
2. A novel pulley train structure according to claim 1, wherein: the automatic adjusting tensioning mechanism (6) comprises a base (61) fixed on a gear chamber cover on an engine box body, a sliding seat (62) is connected onto the base (61) in a sliding mode, a tensioning wheel (63) is hinged onto the sliding seat (62), and the tensioning wheel (63) is pressed against the inner side of a loose edge of a crankshaft belt (4); an elastic part is arranged between the side wall of the base (61) far away from the loose edge of the crankshaft belt (4) and the side wall of the sliding seat (62) far away from the loose edge of the crankshaft belt (4), and the elastic part comprises a plurality of stacked disc-shaped springs (64).
3. A novel pulley train structure according to claim 2, wherein: a rectangular groove (621) is formed in the side wall of the sliding seat (62) far away from the loose edge of the crankshaft belt (4), a counter bore (622) is formed in the bottom surface of the rectangular groove (621), a spring (65) and a first guide rod (66) are sleeved in the counter bore (622), the spring (65) is clamped between the bottom surface of the counter bore (622) and one end of the first guide rod (66), and the first guide rod (66) penetrates through the extending end of the counter bore (622) and is inserted and sleeved in the disc spring (64); an adjusting rod (67) is connected to the side wall of the base (61) far away from the loose edge of the crankshaft belt (4) in a threaded mode, a boss (671) and a second guide rod (672) are formed in the adjusting rod (67), the second guide rod (672) is inserted and sleeved in the disc spring (64), the end portion of the second guide rod (672) is pressed against the first guide rod (66), and the plurality of stacked disc springs (64) are clamped between the boss (671) and the bottom face of the rectangular groove (621).
4. A novel pulley train structure according to claim 1, 2 or 3, wherein: the crankshaft belt (4) is a combined triangular belt; the crankshaft pulley (1) is a double-groove pulley.
5. A novel pulley train structure according to claim 3, wherein: and a third guide rod (673) is formed on the second guide rod (672), a guide hole (661) matched with the third guide rod (673) is formed on the first guide rod (66), and the third guide rod (673) is inserted and sleeved in the guide hole (661).
6. A novel pulley train structure according to claim 1, wherein: and a mounting hole (201) for fixing the fan is formed in the fan pulley (2).
7. A novel pulley train structure according to claim 2, wherein: two parallel slide rails (611) are formed on the base (61), a slide groove (623) matched with the slide rails (611) is formed on the slide seat (62), and the slide rails (611) are inserted in the slide groove (623).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467108.XU CN209908610U (en) | 2019-04-09 | 2019-04-09 | Novel belt wheel train structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920467108.XU CN209908610U (en) | 2019-04-09 | 2019-04-09 | Novel belt wheel train structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209908610U true CN209908610U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920467108.XU Active CN209908610U (en) | 2019-04-09 | 2019-04-09 | Novel belt wheel train structure |
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| Country | Link |
|---|---|
| CN (1) | CN209908610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674651A (en) * | 2022-03-17 | 2022-06-28 | 东风汽车集团股份有限公司 | Method for installing belt for fixing front-end gear train |
-
2019
- 2019-04-09 CN CN201920467108.XU patent/CN209908610U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674651A (en) * | 2022-03-17 | 2022-06-28 | 东风汽车集团股份有限公司 | Method for installing belt for fixing front-end gear train |
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