CN213948620U - Telescopic crawler chassis of excavator - Google Patents
Telescopic crawler chassis of excavator Download PDFInfo
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- CN213948620U CN213948620U CN202022916659.5U CN202022916659U CN213948620U CN 213948620 U CN213948620 U CN 213948620U CN 202022916659 U CN202022916659 U CN 202022916659U CN 213948620 U CN213948620 U CN 213948620U
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Abstract
The utility model discloses a telescopic crawler chassis of an excavator, which comprises a crawler and a chassis main frame arranged in the crawler, wherein the chassis main frame is symmetrically provided with a chassis left side frame and a chassis right side frame; hydraulic telescopic mechanisms are arranged between the chassis main frame and the chassis left side frame and between the chassis main frame and the chassis right side frame; the hydraulic telescopic mechanism comprises a hydraulic cylinder, a telescopic rod and a hydraulic oil cylinder, wherein an oilless bearing is arranged in the hydraulic cylinder, the oilless bearing is fixedly arranged in the hydraulic cylinder in a sealing manner, and the telescopic rod penetrates through the oilless bearing and is movably arranged in the hydraulic cylinder in a sealing manner; the utility model discloses set up oilless bearing inside a hydraulic pressure section of thick bamboo, because a hydraulic pressure section of thick bamboo has carried out the car processing and uses with the oilless bearing cooperation, make hydraulic telescoping mechanism more stable, it is more smooth and easy that oilless bearing makes to stretch out and draw back in addition, and life is longer, prevents that life from having stretched out for a long time and can't retrieve, has nimble flexible beneficial effect.
Description
Technical Field
The utility model relates to a crawler chassis specifically is a flexible crawler chassis of excavator.
Background
An excavator, also known as an excavating machine (excavating excavator), is an earth moving machine that excavates materials above or below a bearing surface with a bucket and loads the materials into a transport vehicle or unloads the materials to a stockyard; the materials excavated by the excavator mainly comprise soil, coal, silt, soil after pre-loosening and rock; in view of the development of construction machines in recent years, the development of excavators is relatively fast, and the excavator becomes one of the most important construction machines in construction; the three most important parameters of the excavator are: operating weight, engine power and bucket capacity.
The crawler belt is a flexible chain ring which is driven by the driving wheel and surrounds the driving wheel, the loading wheel, the inducer and the riding wheel; the crawler belt consists of crawler belts, crawler pins and the like, and the crawler belts are connected by the crawler pins to form a crawler belt link; the both ends of grip-pad are porose, with the action wheel meshing, there is the induction tooth in the middle part for regular track to the track drops when preventing that the tank from turning to or heeling and traveling, has the enhancement non slipping spur in the one side with ground contact, with the adhesive force of the tightness of improvement grip-pad and track and ground.
When the crawler fails, the crawler usually needs to be disassembled for maintenance, and the crawler is assembled after the maintenance is finished, but because the crawler has larger mass, the crawler is assembled by adopting fastening assembly for preventing loosening, and the assembly and disassembly are inconvenient, a telescopic mechanism needs to be arranged in the crawler so as to tension or loosen the crawler; the track telescopic machanism among the prior art all adopts hydraulic telescoping mechanism to stretch out and draw back usually, but the bearing that adopts among the hydraulic telescoping mechanism among the prior art need add lubricating oil and lubricate, if do not add lubricating oil for a long time, the bearing will make flexible resistance grow, shortens the life of bearing, and the telescopic link that probably the live time has been of a specified duration stretched out just can't be retrieved.
Therefore, the inventor provides the telescopic crawler chassis of the excavator by combining various factors.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible track chassis of 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:
a telescopic crawler chassis of an excavator comprises a crawler and a chassis main frame arranged in the crawler, wherein a chassis left side frame and a chassis right side frame are symmetrically arranged on the left and right of the chassis main frame, a driving wheel is arranged in the chassis left side frame, and the driving wheel is movably arranged in the chassis left side frame through a driving shaft;
a driven wheel is arranged in the right side frame of the chassis and is movably arranged in the right side frame of the chassis through a driven shaft; hydraulic telescopic mechanisms are arranged between the chassis main frame and the chassis left side frame and between the chassis main frame and the chassis right side frame;
the hydraulic telescopic mechanism comprises a hydraulic cylinder, a telescopic rod and a hydraulic oil cylinder, wherein an oilless bearing is arranged in the hydraulic cylinder, the oilless bearing is fixedly installed in the hydraulic cylinder in a sealing mode, and the telescopic rod penetrates through the oilless bearing and is movably installed in the hydraulic cylinder in a sealing mode.
When in work: the utility model discloses set up oilless bearing inside a hydraulic pressure section of thick bamboo, because a hydraulic pressure section of thick bamboo has carried out the car processing and has used with the oilless bearing cooperation, changed the inferior position that the square pipe track of conventional use can't accomplish little clearance fit, make hydraulic telescoping mechanism more stable, oilless bearing makes flexible more smooth and easy in addition, and life is longer, prevents that the live time from having stretched out for a long time and can't retrieve, has nimble flexible beneficial effect.
As a further aspect of the present invention: the crawler belt is wrapped and installed on the periphery of the driving wheel and the driven wheel, and reinforcing anti-skidding ribs are arranged on the outer surface of the crawler belt, which is in contact with the ground, so that the firmness of the crawler belt and the adhesive force between the crawler belt and the ground are improved conveniently.
As a further aspect of the present invention: the hydraulic cylinders are fixedly arranged on the left side frame and the right side frame of the chassis respectively, the hydraulic cylinders are respectively communicated and arranged in hydraulic cylinders on the left side and the right side through high-pressure hoses, and the hydraulic cylinders press hydraulic oil into the hydraulic cylinders through the high-pressure hoses to push telescopic rods movably arranged in the hydraulic cylinders in a sealing mode to achieve telescopic motion, so that hydraulic power is provided through the hydraulic cylinders conveniently.
As a further aspect of the present invention: the hydraulic cylinders are welded on two sides of the chassis main frame, the telescopic rods are respectively welded on the left side frame and the right side frame of the chassis, the chassis main frame is used as a fulcrum, the left side frame and the right side frame of the chassis are pushed to move outwards through the telescopic rods, the driving wheel and the driven wheel are further pushed to move outwards, and the crawler belts which are wrapped and installed on the peripheries of the driving wheel and the driven wheel are tensioned.
As a further aspect of the present invention: the walking wheels are arranged between the chassis main frame and the crawler, the walking wheels are movably mounted on the supporting seats through pin shafts, the supporting seats are fixedly mounted above and below the chassis main frame, the walking wheels at the bottom of the chassis main frame are convenient to support the chassis main frame to roll on the crawler, the walking wheels at the top of the frame beam support the crawler, and the crawler is prevented from being damaged by friction on the frame beam.
As a further aspect of the present invention: the inboard of track is provided with the walking groove with the corresponding position of walking wheel, the walking wheel cooperation joint is installed and is rolled the walking in the walking groove, is convenient for restrict the walking route of track, prevents that the track off tracking from droing.
Compared with the prior art, the utility model discloses the beneficial effect of following several aspects has:
1. the utility model provides a flexible track chassis of excavator, the structure sets up ingenious and arrange rationally, the utility model discloses set up oilless bearing inside a hydraulic pressure section of thick bamboo, because a hydraulic pressure section of thick bamboo has carried out car processing and has used with oilless bearing cooperation, changed the inferior position that conventional use's side's pipe track can't accomplish little clearance fit, make hydraulic telescoping mechanism more stable, it is more smooth and easy to add oilless bearing messenger, and life is longer, prevents that the live time from having stretched out for a long time and can't retrieve, has nimble flexible beneficial effect.
2. The utility model discloses the surface with ground contact on the track of further design is provided with strengthens anti-skidding muscle, is convenient for improve the tightness of track and the adhesive force of track and ground.
3. The utility model discloses the walking wheel of further design supports chassis body frame and rolls the walking on the track, makes the walking wheel at frame roof beam top support the track, prevents that the track from rubbing the damage on frame roof beam.
4. The utility model discloses the walking wheel cooperation joint of further design is installed and is being walked at the inslot roll walking, is convenient for restrict the walking route of track, prevents that the track off tracking from droing.
Drawings
Fig. 1 is a side view of a telescopic crawler chassis of an excavator.
Fig. 2 is a schematic top view of a telescopic crawler chassis of an excavator.
Fig. 3 is a mounting diagram of a hydraulic cylinder and a telescopic rod in a telescopic crawler chassis of an excavator in a matching manner.
In the figure: 1. a crawler belt; 2. a chassis main frame; 21. a traveling wheel; 22. a pin shaft; 23. a supporting seat; 3. a driving wheel; 31. a drive shaft; 32. a chassis left side frame; 4. a driven wheel; 41. a driven shaft; 42. a chassis right side frame; 5. a hydraulic cylinder; 51. an oilless bearing; 6. a telescopic rod; 7. a hydraulic cylinder; 8. a high pressure hose.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-3, a telescopic track chassis of an excavator comprises a track 1 and a chassis main frame 2 arranged inside the track, wherein a chassis left side frame 32 and a chassis right side frame 42 are symmetrically arranged on the chassis main frame 2 in the left-right direction, a driving wheel 3 is arranged in the chassis left side frame 32, and the driving wheel 3 is movably mounted in the chassis left side frame 32 through a driving shaft 31; a driven wheel 4 is arranged in the chassis right side frame 42, and the driven wheel 4 is movably arranged in the chassis right side frame 42 through a driven shaft 41; hydraulic telescopic mechanisms are arranged between the chassis main frame 2 and the chassis left side frame 32 and between the chassis main frame 2 and the chassis right side frame 42; the hydraulic telescopic mechanism comprises a hydraulic cylinder 5, a telescopic rod 6 and a hydraulic oil cylinder 7, wherein an oilless bearing 51 is arranged in the hydraulic cylinder 5, the oilless bearing 51 is fixedly installed in the hydraulic cylinder 5 in a sealing manner, and the telescopic rod 6 penetrates through the oilless bearing 51 and is movably installed in the hydraulic cylinder 5 in a sealing manner; the crawler 1 is arranged at the periphery of the driving wheel 3 and the driven wheel 4 in a wrapping mode, and the outer surface, which is in contact with the ground, of the crawler 1 is provided with reinforced anti-skid ribs, so that the firmness of the crawler 1 and the adhesive force between the crawler 1 and the ground are improved conveniently;
the hydraulic oil cylinders 7 are respectively fixedly arranged on the left side frame 32 and the right side frame 42 of the chassis, the hydraulic oil cylinders 7 are respectively communicated and arranged in the hydraulic cylinders 5 arranged on the left side and the right side through high-pressure hoses 8, the hydraulic oil cylinders 7 press hydraulic oil into the hydraulic cylinders 5 through the high-pressure hoses 8 to push the telescopic rods 6 which are movably arranged in the hydraulic cylinders 5 in a sealing mode to realize telescopic movement, and hydraulic power is conveniently provided through the hydraulic oil cylinders 7; the hydraulic cylinders 5 are welded on two sides of the chassis main frame 2, the telescopic rods 6 are respectively welded on the chassis left side frame 32 and the chassis right side frame 42, so that the chassis main frame 2 is taken as a fulcrum to push the chassis left side frame 32 and the chassis right side frame 42 to move outwards through the telescopic rods 6, further push the driving wheel 3 and the driven wheel 4 to move outwards, and tension the crawler belt 1 which is wrapped and installed on the periphery of the driving wheel 3 and the driven wheel 4;
The utility model discloses a theory of operation is: the utility model provides a flexible track chassis of excavator, the structure sets up ingeniously and arranges rationally, hydraulic cylinder 7 is pressed hydraulic oil into hydraulic cylinder 5 through high-pressure hose 8 in order to promote sealed movable mounting in hydraulic cylinder 5 telescopic link 6 realize the concertina movement, use chassis body frame 2 as the fulcrum and promote chassis left side frame 32 and chassis right side frame 42 to move outward through telescopic link 6, and then promote action wheel 3 and from the outward movement of driving wheel 4, will wrap up and install track 1 tensioning in the periphery of action wheel 3 and from the driving wheel 4, be convenient for through hydraulic telescoping mechanism appropriately adjust track 1 elasticity as required; additionally, the utility model discloses set up oilless bearing 51 inside hydraulic pressure section of thick bamboo 5, because hydraulic pressure section of thick bamboo 5 has carried out the car processing and has used with oilless bearing 51 cooperation, changed the inferior situation that little clearance fit can't be accomplished to the square pipe track of conventional use, made hydraulic telescoping mechanism more stable, oilless bearing 51 makes flexible more smooth and easy in addition, and life is longer, prevents that the live time from having stretched out for a long time and can't receive back, has nimble flexible beneficial effect.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
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 by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. A telescopic crawler chassis of an excavator comprises a crawler belt (1) and a chassis main frame (2) arranged in the crawler belt, and is characterized in that a chassis left side frame (32) and a chassis right side frame (42) are symmetrically arranged on the left and right of the chassis main frame (2), a driving wheel (3) is arranged in the chassis left side frame (32), and the driving wheel (3) is movably arranged in the chassis left side frame (32) through a driving shaft (31); a driven wheel (4) is arranged in the right side frame (42) of the chassis, and the driven wheel (4) is movably arranged in the right side frame (42) of the chassis through a driven shaft (41); hydraulic telescopic mechanisms are arranged between the main chassis frame (2) and the left chassis frame (32) and between the main chassis frame (2) and the right chassis frame (42);
the hydraulic telescopic mechanism comprises a hydraulic cylinder (5), a telescopic rod (6) and a hydraulic oil cylinder (7), wherein an oilless bearing (51) is arranged in the hydraulic cylinder (5), the oilless bearing (51) is fixedly installed in the hydraulic cylinder (5) in a sealing mode, and the telescopic rod (6) penetrates through the oilless bearing (51) and is movably installed in the hydraulic cylinder (5) in a sealing mode.
2. The telescopic crawler chassis of the excavator according to claim 1, wherein the crawler (1) is wrapped and installed at the periphery of the driving wheel (3) and the driven wheel (4), and the outer surface of the crawler (1) contacting with the ground is provided with a reinforced anti-skid rib.
3. The telescopic crawler chassis of an excavator according to claim 1, wherein the hydraulic oil cylinder (7) is fixedly installed on a left side frame (32) of the chassis and a right side frame (42) of the chassis respectively, and the hydraulic oil cylinder (7) is installed in hydraulic cylinders (5) arranged on the left side and the right side in a communicated manner through high-pressure hoses (8) respectively.
4. The telescopic crawler chassis of an excavator according to claim 3, wherein the hydraulic cylinders (5) are welded and installed on both sides of the chassis main frame (2), and the telescopic rods (6) are respectively welded and installed on the chassis left side frame (32) and the chassis right side frame (42).
5. The telescopic crawler chassis of the excavator according to claim 4, wherein a walking wheel (21) is arranged between the chassis main frame (2) and the crawler (1), the walking wheel (21) is movably arranged on a supporting seat (23) through a pin shaft (22), and the supporting seat (23) is fixedly arranged above and below the chassis main frame (2).
6. The telescopic crawler chassis of the excavator according to claim 5, wherein a walking groove is formed in the inner side of the crawler (1) corresponding to the walking wheels (21), and the walking wheels (21) are installed in the walking groove in a matched clamping mode to roll and walk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022916659.5U CN213948620U (en) | 2020-12-08 | 2020-12-08 | Telescopic crawler chassis of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022916659.5U CN213948620U (en) | 2020-12-08 | 2020-12-08 | Telescopic crawler chassis of excavator |
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| Publication Number | Publication Date |
|---|---|
| CN213948620U true CN213948620U (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022916659.5U Active CN213948620U (en) | 2020-12-08 | 2020-12-08 | Telescopic crawler chassis of excavator |
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| CN (1) | CN213948620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620209A (en) * | 2022-05-11 | 2022-06-14 | 中国海洋大学 | Ore collecting device and method capable of adapting to multi-terrain work and improving walking conditions |
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2020
- 2020-12-08 CN CN202022916659.5U patent/CN213948620U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114620209A (en) * | 2022-05-11 | 2022-06-14 | 中国海洋大学 | Ore collecting device and method capable of adapting to multi-terrain work and improving walking conditions |
| CN114620209B (en) * | 2022-05-11 | 2022-12-23 | 中国海洋大学 | Ore collecting device and method capable of adapting to multi-terrain work and improving walking conditions |
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