CN101768989A - Large mineral track driving device of excavator - Google Patents
Large mineral track driving device of excavator Download PDFInfo
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- CN101768989A CN101768989A CN200910263955A CN200910263955A CN101768989A CN 101768989 A CN101768989 A CN 101768989A CN 200910263955 A CN200910263955 A CN 200910263955A CN 200910263955 A CN200910263955 A CN 200910263955A CN 101768989 A CN101768989 A CN 101768989A
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Abstract
The invention discloses a large mineral track driving device of an excavator, relating to a large track type excavator and solving the problems of low driving efficiency and short service life of driving parts in the prior art. The large mineral track driving device comprises a driving wheel and a closed track chain, wherein the driving wheel is driven by a motor and a speed reducer; and the closed track chain is hinged by using high-strength pin rolls through a plurality of track shoes and are in meshed driving with the driving wheel and a driven wheel. The large mineral track driving device is characterized in that the driving wheel is in a small-diameter chain wheel type structure and is provided with two rows of driving chain teeth C; the diameter D of a part which is arranged between two rows of chain teeth and is not forced is less than the diameter corresponding to the driving wheel in the prior art; the thickness E of the position corresponding to the part which is arranged between two rows of chain teeth and is not forced is thicker than the track shoe in the prior art; and the distance H1 between the center of the driving wheel and the ground is higher than the distance H between the center of the driving wheel in the prior art and the ground.
Description
Technical field
The present invention relates to the large-scale mine crawler-mounted excavator.
Background technology
Advantages such as the crawler type traveling mechanism has tractive force big, and grounding pressure is little, and cross-country ability is good, and stability is high, and turning radius is little are used on the large-scale winning equipment widely.
The drive unit of crawler-mounted excavator is various informative, and as: sprocket-type driving wheel and the chain rail structure that joint-rolling creeper tread matches, its accuracy of manufacture height, supporting capacity are little, generally are only applicable on engineering machinery and the little tonnage crawler-type excavator; And projection formula driving wheel and the structure that matches of casting creeper tread, its supporting capacity height, the accuracy of manufacture are low, and adaptive capacity is strong, is widely used on the big-and-middle-sized mine excavator of low-speed heave-load.
Shown in Fig. 1,2,3,4, the caterpillar drive of the large-sized mining dredger of prior art, comprise: by the driving wheel 1 of motor reducer transmission, 3 hinged by polylith creeper tread 2 usefulness high-strength pin, by with the sealing caterpillar chain of driving wheel 1, driven pulley 4 engaged transmission.Its walking is to rely on the projection A of driving wheel both sides to stir the boss B (see figure 3) of the creeper tread both sides that are engaged with, make this creeper tread along with driving wheel rotates, again by the bearing pin on this creeper tread with transmission of power to next piece creeper tread, realize walking up to whole caterpillar chain action back.Because be subjected to the restriction of structure and manufacturing process, the projection formula caterpillar drive of prior art exists obvious defects:
1, driving wheel 1 diameter is big, and the projection A of its wheel rim both sides is restricted, and is less than normal with the contact surface B of creeper tread 2, and projection is far away apart from the center, and arm of force L is long, easily makes projection press heap and fracture.Driving wheel weight is big, and inertia resistance is big, and it is low to drive efficient.
2, the field of conjugate action of creeper tread 2 is away from the connecting pin between the creeper tread (be between stress surface and the crawler belt bearing pin distance P bigger), cause producing additional force in the moment transmittance process, cause the creeper tread bearing pin easy to wear, application life is short, maintenance load is big, the labour intensity height.
3, driving center H is low, and the creeper tread 2 that driving wheel 1 is stirred contacts with ground, has increased frictional resistance, greatly reduces to drive the efficient (see figure 4).
Summary of the invention
Purpose of the present invention is intended to overcome the shortcoming of prior art, a kind of caterpillar drive of large-sized mining dredger is provided, the driving efficient that solves the prior art existence is low, drive part short problem in application life, prolong the operation cycle greatly, reduce the consumption of spare part and material, improve the production capacity of equipment.
The present invention is achieved through the following technical solutions:
A kind of caterpillar drive of large-sized mining dredger, comprise: comprising: by the driving wheel of motor reducer transmission, hinged by the polylith creeper tread with high-strength pin, by the sealing caterpillar chain of driving wheel, driven pulley engaged transmission, it is characterized in that: described driving wheel is a minor diameter sprocket-type structure, be provided with two rows and drive sprocket C, the do not stress diameter D of part of two row's chain between cog is little than the corresponding diameter of the driving wheel of prior art; The do not stress thickness E of part institute corresponding position of described creeper tread and driving wheel two row's chain between cog is thick than the creeper tread of prior art.
The diameter of described driving wheel is little with respect to the diameter of the driving wheel of prior art, makes the arm of force at application of force place shorten, that is: the arm of force (L of driving wheel of the present invention
1The arm of force of the driving wheel of)＜prior art (L).
The distance H on the center to center distance ground of described driving wheel
1Want high than the distance H on the driving wheel center to center distance ground of prior art.
The present invention compared with prior art has following outstanding advantage and remarkable result:
1, owing to become double strand chain wheeled drive wheel design, strengthens the area that meshes with creeper tread, reduce stress and concentrate the life-span of effectively having improved driving wheel; Owing to shorten the driving wheel diameter as far as possible, shorten the distance of force arm, reduce the diameter of driving wheel core, therefore alleviated weight, reduced frictional resistance.
2, owing to increase the middle thickness of creeper tread, both increase the intensity of creeper tread, shortened the distance between stress surface and the bearing pin again, improved the stress in bearing pin and hole, prolonged the life-span of creeper tread widely.
3 owing to adopt overhead system to drive crawler attachment, reduces support force and frictional resistance on the driving wheel, improved driving efficient.
Description of drawings
Fig. 1. be the driving wheel front view of prior art;
Fig. 2. be the sectional view of Fig. 1;
Fig. 3. be the driving wheel of prior art and the engagement schematic diagram of creeper tread;
Fig. 4. be the driving wheel of prior art and the assembling schematic diagram of sealing caterpillar chain;
Fig. 5. be driving wheel front view of the present invention;
Fig. 6. be the sectional view of Fig. 5;
Fig. 7. be the engagement schematic diagram of driving wheel of the present invention and creeper tread;
Fig. 8. be driving wheel of the present invention and the assembling schematic diagram that seals caterpillar chain.
The present invention is further illustrated by preferred embodiment below in conjunction with accompanying drawing.
The specific embodiment
Shown in Fig. 5,6,7,8, a kind of caterpillar drive of large-sized mining dredger, comprise: comprising:, 3 hinged by polylith creeper tread 2 usefulness high-strength pin, by the sealing caterpillar chain of driving wheel 1, driven pulley 4 engaged transmission by the driving wheel 1 of motor reducer transmission.
Described driving wheel 1 is a minor diameter sprocket-type structure, is provided with two rows and drives sprocket C, increases the contact area B with creeper tread 2
1, reduce stress and concentrate the life-span of effectively having improved driving wheel.
The diameter of described driving wheel 1 is little with respect to the diameter of the driving wheel of prior art, makes the arm of force at application of force place shorten, that is: the arm of force L of driving wheel of the present invention
1The arm of force L of the driving wheel of＜prior art.
The motion of crawler belt relies on the bearing pin between the creeper tread that transmission of power is arrived the back, so the stress of bearing pin is very crucial.Because the change of driving wheel, diameter reduces in the middle of it, the do not stress thickness E of part institute corresponding position of described creeper tread 2 and 1 liang of row's chain of driving wheel between cog can thicken than the creeper tread of prior art, so both increased the intensity of creeper tread, the distance that has shortened again between stress surface and the crawler belt bearing pin (is P
1＜P), improved the stress in bearing pin and hole, prolonged the life-span of creeper tread widely.
The distance H on the center to center distance ground of described driving wheel 1
1Wanting height than the distance H on the driving wheel center to center distance ground of prior art (be H
1＞H), reduce support force and frictional resistance on the driving wheel, improved driving efficient.
Claims (3)
1. the caterpillar drive of a large-sized mining dredger, comprise: by the driving wheel (1) of motor, reductor transmission, hinged by polylith creeper tread (2) with high-strength pin (3), by the sealing caterpillar chain of driving wheel (1), driven pulley (4) engaged transmission, it is characterized in that: described driving wheel (1) is minor diameter sprocket-type structure, be provided with two rows and drive sprockets (C), the do not stress diameter (D) of part of two row's chain between cog is little than the corresponding diameter of the driving wheel of prior art; The do not stress thickness (E) of part institute corresponding position of described creeper tread (2) and driving wheel (1) two row's chain between cog is thick than the creeper tread of prior art.
2. according to the caterpillar drive of the described large-sized mining dredger of claim 1, it is characterized in that: the diameter of described driving wheel (1) is little with respect to the diameter of the driving wheel of prior art, make the arm of force at application of force place shorten, that is: the arm of force (L of driving wheel of the present invention
1The arm of force of the driving wheel of)＜prior art (L).
3. according to the caterpillar drive of the described large-sized mining dredger of claim 1, it is characterized in that: the distance (H on the center to center distance ground of described driving wheel (1)
1) want high than the distance (H) on the driving wheel center to center distance ground of prior art.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910263955A CN101768989A (en) | 2009-12-29 | 2009-12-29 | Large mineral track driving device of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910263955A CN101768989A (en) | 2009-12-29 | 2009-12-29 | Large mineral track driving device of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101768989A true CN101768989A (en) | 2010-07-07 |
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ID=42502072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910263955A Pending CN101768989A (en) | 2009-12-29 | 2009-12-29 | Large mineral track driving device of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101768989A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107719495A (en) * | 2017-11-14 | 2018-02-23 | 北京大圣格尔冶金设备有限公司 | A kind of opencut large excavator driving wheel |
| CN111597639A (en) * | 2020-05-19 | 2020-08-28 | 北京理工大学 | Coupling analysis method for crawler belt and cross-country road surface |
-
2009
- 2009-12-29 CN CN200910263955A patent/CN101768989A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107719495A (en) * | 2017-11-14 | 2018-02-23 | 北京大圣格尔冶金设备有限公司 | A kind of opencut large excavator driving wheel |
| CN111597639A (en) * | 2020-05-19 | 2020-08-28 | 北京理工大学 | Coupling analysis method for crawler belt and cross-country road surface |
| CN111597639B (en) * | 2020-05-19 | 2021-07-27 | 北京理工大学 | Coupling analysis method for crawler belt and cross-country road surface |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20100707 |