CN115285242B - Crawler wheel, crawler travel device and working machine - Google Patents
Crawler wheel, crawler travel device and working machine Download PDFInfo
- Publication number
- CN115285242B CN115285242B CN202211043528.8A CN202211043528A CN115285242B CN 115285242 B CN115285242 B CN 115285242B CN 202211043528 A CN202211043528 A CN 202211043528A CN 115285242 B CN115285242 B CN 115285242B
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- Prior art keywords
- wheel
- crawler
- wheel body
- hole
- shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/14—Arrangement, location, or adaptation of rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/02—Travelling-gear, e.g. associated with slewing gears
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention relates to the technical field of engineering machinery, and provides a crawler wheel, a crawler travelling device and an operation machine, wherein the crawler wheel comprises a wheel shaft; the wheel body, the axis is parallel with axis of the wheel axle, the wheel axle runs through the wheel body, and the wheel body is in clearance fit with the wheel axle, a first through hole with controllable on-off state is arranged on the wheel body, one end of the first through hole runs through the outer surface of the wheel body, and the other end of the first through hole is communicated with the clearance between the wheel body and the wheel axle; the end covers are respectively and fixedly connected to the two ends of the wheel shaft and are in sealing contact with the end parts of the wheel body, second through holes with controllable on-off states are formed in the end covers, one ends of the second through holes penetrate through the outer surfaces of the end covers, and the other ends of the second through holes are communicated with gaps between the wheel body and the wheel shaft. The crawler wheel is arranged in such a way, and the problem of oil leakage of the crawler wheel caused by the increase of metal powder in the crawler wheel in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a crawler wheel, a crawler travelling device and a working machine.
Background
Along with the application development of diversification of the working machinery, the structure of the working machinery tends to develop in the aspects of refinement, humanization, convenient operation and maintenance and the like. For example, an excavator is taken as an example, and is displaced by a crawler belt. The crawler wheels such as the supporting wheels, the guiding wheels and the like are used as main bearing components of the crawler running device, abrasion can occur in the running process of the crawler running device, and metal powder is generated between the wheel body and the wheel shaft. Along with the increase of the working time of the crawler running gear, metal powder between the wheel body and the wheel shaft is gradually increased, so that abrasion to the wheel body and the wheel shaft is increased, the temperature of the wheel body is increased, a gap is formed between the floating oil seal, and lubricating oil is leaked.
In the prior art, when the problem of oil leakage occurs to the thrust wheel or the guide wheel, the thrust wheel or the guide wheel needs to be integrally replaced to complete maintenance. For large-scale excavators, the supporting wheels and the guiding wheels are relatively large, the cost is high, a plurality of maintenance personnel are required to cooperate during replacement, and the replacement can be completed by using special tools, so that the operation is inconvenient.
Therefore, how to solve the problem of oil leakage of the crawler wheel caused by the increase of the metal powder in the crawler wheel in the prior art is an important technical problem to be solved by the person skilled in the art.
Disclosure of Invention
The invention provides a crawler wheel, a crawler travelling device and a working machine, which are used for solving the defect of oil leakage of the crawler wheel caused by the increase of metal powder in the crawler wheel in the prior art.
The invention provides a crawler wheel, comprising:
a wheel axle;
the wheel body, the axis is parallel with the axis of shaft, the shaft runs through the wheel body, and the wheel body and the shaft clearance fit, be provided with the controllable first through-hole of on-off state on the wheel body, the one end of first through-hole runs through the surface of wheel body, the other end communicates in the clearance between wheel body and the shaft;
the pair of end covers are respectively and fixedly connected to the two ends of the wheel shaft and are in sealing contact with the end parts of the wheel body, a second through hole with controllable on-off state is formed in the end cover, one end of the second through hole penetrates through the outer surface of the end cover, and the other end of the second through hole is communicated with a gap between the wheel body and the wheel shaft.
According to the crawler wheel provided by the invention, the annular groove is formed in the inner wall of the wheel body, the annular groove extends along the circumferential direction of the wheel body, and the first through hole penetrates through the cambered surface side wall of the annular groove along the radial direction of the wheel body.
According to the crawler wheel provided by the invention, the annular groove is arranged in the wheel body in a centering way.
According to the crawler wheel provided by the invention, a gap is formed between the end cover and the wheel body, the peripheral edge of the end cover is in sealing contact with the wheel body, the second through hole penetrates through the end cover along the axial direction of the end cover, and the second through hole is communicated with the gap between the end cover and the wheel body.
According to the invention, there is provided a crawler wheel, further comprising:
the temperature detection element is fixedly arranged in the annular groove, and is used for detecting the temperature of oil in the annular groove and outputting temperature data of the oil.
According to the crawler wheel provided by the invention, the temperature detection element is provided with the magnetic attraction part, and the magnetic attraction part is capable of being attracted to the side wall of the annular groove.
According to the invention, there is provided a crawler wheel, further comprising:
the first blocking piece is used for blocking the first through hole and is detachably connected with the wheel body;
the second blocking piece is used for blocking the second through hole and is detachably connected with the end cover.
According to the crawler wheel provided by the invention, the wheel body comprises the wheel body and the shaft sleeve, the shaft sleeve is arranged in the wheel body, the axis of the shaft sleeve is coincident with the axis of the wheel body, the shaft sleeve is in interference fit with the wheel body, and the shaft sleeve is in clearance fit with the wheel shaft.
The invention also provides a crawler traveling device which comprises a supporting wheel, a guiding wheel, a supporting chain wheel and a crawler, wherein at least one of the supporting wheel, the guiding wheel and the supporting chain wheel is the crawler wheel.
The invention also provides a working machine comprising the crawler wheel or the crawler travelling device.
The crawler wheel comprises a wheel shaft, a wheel body and a pair of end covers, wherein the axis of the wheel body is parallel to the axis of the wheel shaft, the wheel body is in clearance fit with the wheel shaft, and the wheel body can relatively rotate relative to the wheel shaft. Lubricating oil is filled in the gap between the wheel body and the wheel shaft and used for lubricating the wheel body and the wheel shaft, so that abrasion to the wheel body and the wheel shaft is reduced. The wheel axle runs through the wheel body, and a pair of end covers are respectively fixedly connected to two ends of the wheel axle and are used for realizing connection of the crawler wheels and the crawler devices. The end cover is in sealing contact with the end part of the wheel body, so that leakage of lubricating oil is prevented. The wheel body is provided with a first through hole, one end of the first through hole penetrates through the outer surface of the wheel body, and the other end of the first through hole is communicated with a gap between the wheel body and the wheel shaft. The end cover is provided with a second through hole, one end of the second through hole penetrates through the outer surface of the end cover, and the other end of the second through hole is communicated with a gap between the wheel body and the wheel shaft. The opening and closing states of the first through hole and the second through hole are controllable, when the first through hole and the second through hole are in an opening state, fluid such as lubricating oil can enter and exit the gap between the wheel body and the wheel shaft, and when the first through hole and the second through hole are in a closing state, lubricating oil in the gap between the wheel body and the wheel shaft can be limited to circulate to the outside of the crawler wheel. After the crawler wheel works for a certain time, the first through hole and the second through hole can be controlled to be in an open state, fluid is injected into the crawler wheel through the second through holes on the pair of end covers, and the fluid and lubricating oil between the wheel shaft and the wheel body are discharged through the first through holes. At this time, the crawler wheel needs to be rotated in advance, so that the first through hole is arranged downwards. In the process of circulating the fluid and the lubricating oil in the crawler wheel, the metal powder between the wheel body and the wheel shaft can be driven to be discharged to the outside of the crawler wheel, so that the metal powder in the crawler wheel is reduced or eliminated. After the metal powder in the crawler wheel is removed, filling lubricating oil into the crawler wheel and controlling the first through hole and the second through hole to be in a closed state. So set up, regularly wash the inside of athey wheel to change the inside lubricating oil of athey wheel, can effectively clear away the inside metal powder of athey wheel, alleviate the wearing and tearing to wheel body and shaft, avoid the influence to floating oil blanket, be favorable to prolonging the life of athey wheel, thereby solve the athey wheel among the prior art because of the problem of the oil leak that its inside metal powder's increase leads to.
Further, the crawler belt running apparatus according to the present invention has the above-described crawler wheels, and thus has various advantages as described above.
Further, the working machine according to the present invention includes the crawler wheel or the crawler travel device as described above, and thus also has various advantages as described above.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the external structure of a crawler wheel provided by the invention;
FIG. 2 is a schematic view of the internal structure of the crawler wheel provided by the invention;
fig. 3 is a schematic view of a path of fluid flow within a track wheel provided by the present invention.
Reference numerals:
1: a wheel axle; 2: a first through hole; 3: an end cap; 4: a second through hole; 5: an annular groove; 6: a temperature detecting element; 7: a wheel body; 8: a shaft sleeve; 9: a floating seal.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The crawler wheel of the present invention is described below with reference to fig. 1 to 3.
As shown in fig. 1 to 3, the crawler wheel provided in the embodiment of the invention comprises a wheel shaft 1, a wheel body and a pair of end covers 3.
Specifically, the wheel axle 1 is positioned in the wheel body, the axis of the wheel body is parallel to the axis of the wheel axle 1, the wheel body is in clearance fit with the wheel axle 1, and the wheel body can relatively rotate relative to the wheel axle 1. Lubricating oil is filled in the gap between the wheel body and the wheel shaft 1 and used for lubricating the wheel body and the wheel shaft 1, so that abrasion to the wheel body and the wheel shaft 1 is reduced.
The wheel axle 1 runs through the wheel body, a pair of end covers 3 are respectively positioned at two ends of the wheel body, the end covers 3 are fixedly connected to the end parts of the wheel axle 1, and the end covers 3 are used for being connected with the crawler belt device, so that the crawler wheels are connected with the crawler belt device.
The end cap 3 is in sealing contact with the end of the wheel body, and can prevent leakage of lubricating oil.
The wheel body is provided with a first through hole 2, one end of the first through hole 2 penetrates through the outer surface of the wheel body, and the other end of the first through hole is communicated with a gap between the wheel body and the wheel shaft 1.
The end cover 3 is provided with a second through hole 4, one end of the second through hole 4 penetrates through the outer surface of the end cover 3, and the other end of the second through hole is communicated with a gap between the wheel body and the wheel shaft 1.
The opening and closing states of the first through hole 2 and the second through hole 4 are controllable, and when the first through hole 2 and the second through hole 4 are in the opening state, fluid such as lubricating oil can enter and exit the gap between the wheel body and the wheel shaft 1. When the first through hole 2 and the second through hole 4 are in the closed state, the lubricating oil in the gap between the wheel body and the wheel axle 1 can be restricted from flowing to the outside of the crawler wheel.
After the crawler wheel works for a certain time, the first through hole 2 and the second through hole 4 can be controlled to be in an open state, and fluid is injected into the crawler wheel through the second through holes 4 on the pair of end covers 3, so that the fluid and lubricating oil between the wheel axle 1 and the wheel body are discharged through the first through hole 2.
At this time, the crawler wheel needs to be rotated in advance so that the first through hole 2 is disposed downward.
In the process that the fluid and the lubricating oil circulate inside the crawler wheel, the metal powder between the wheel body and the wheel shaft 1 can be driven to be discharged outside the crawler wheel, so that the metal powder inside the crawler wheel is reduced or eliminated. After the metal powder in the crawler wheel is removed, lubricating oil is filled in the crawler wheel, and the first through holes 2 and the second through holes 4 are controlled to be in a closed state.
The fluid may be oil such as lubricating oil, or high-pressure gas.
So set up, regularly wash the inside of crawler wheel to more the inside lubricating oil of crawler wheel can effectively clear away the inside metal powder of crawler wheel, alleviates the wearing and tearing to wheel body and shaft 1, avoids the influence to floating oil blanket, is favorable to prolonging the life of crawler wheel, thereby solves the crawler wheel among the prior art because of the problem of the oil leak that its inside metal powder's increase leads to.
In the embodiment, the maintenance of the crawler wheel is realized mainly by using the fluid to clean the metal powder in the crawler wheel and replacing lubricating oil, the operation is simple, the maintenance is convenient, the replacement of the crawler wheel is reduced, and the maintenance cost is reduced.
In the cleaning process, a certain pressure is generated inside the crawler wheel, and the pressure cannot be too high, so that the metal powder in the crawler wheel can be discharged, and the wheel body is prevented from being damaged or destroyed. After the crawler wheel is cleaned, the wheel body can be rotated in advance when lubricating oil is filled into the crawler wheel, so that the first through holes 2 are upward.
Note that, the track wheel in this embodiment may be a thrust wheel or a guiding wheel, which is not particularly limited.
When lubricating oil is injected into the crawler wheel, the first through hole 2 and the second through hole 4 can be used as oil injection holes for lubricating oil. When the crawler wheel is cleaned, the second through hole 4 is used as a filling hole for fluid such as oil or gas, and the first through hole 2 is used as a discharge hole for lubricant, fluid and metal powder.
In order to improve the cleaning efficiency of the crawler wheel, a plurality of second through holes 4 can be arranged on each end cover 3, and the extending directions of the second through holes 4 are parallel to each other and are communicated with the gap between the wheel body and the wheel shaft 1. The fluid is injected into the crawler wheel through the plurality of second through holes 4 at the same time, so that the injection efficiency of the fluid can be improved, the circulation efficiency of the fluid in the crawler wheel can be improved, and the cleaning efficiency of the crawler wheel can be improved.
The opening and closing states of the first through hole 2 and the second through hole 4 can be controlled by components such as valves.
In the present embodiment, the open/close states of the first through hole 2 and the second through hole 4 are controlled by the blocking member. The crawler wheel in this embodiment further includes a first blocking member and a second blocking member, where the first blocking member corresponds to the first through hole 2 and is used for blocking the first through hole 2. The first blocking member is detachably connected with the wheel body, and the opening and closing states of the first through hole 2 can be controlled by detaching the first blocking member.
The second blocking pieces are at least two, and the second blocking pieces are in one-to-one correspondence with the second through holes 4 and are used for blocking the second through holes 4. The second blocking member is detachably connected to the end cap 3, and the open/close state of the second through hole 4 can be controlled by detaching the second blocking member.
The first blocking member and the second blocking member may be, but are not limited to, screw plugs. The external surface of the screw plug is provided with external threads, and at this time, internal threads are required to be respectively arranged at the end part of the first through hole 2 and the end part of the second through hole 4 so as to be matched with the external threads on the screw plug, thereby realizing the connection between the screw plug and the wheel body and the connection between the screw plug and the end cover 3.
By screwing the screw plug, the installation and the disassembly of the screw plug can be realized, thereby controlling the opening and closing states of the first through hole 2 and the second through hole 4.
In this embodiment, an annular groove 5 is provided on the inner wall of the wheel body, and the annular groove 5 extends in the circumferential direction of the wheel body. The arrangement of the annular groove 5 can increase the oil storage space inside the crawler wheel, the annular groove 5 is communicated with the gap between the wheel body and the wheel axle 1, and in the working process of the crawler wheel, the lubricating oil in the annular groove 5 can enter the space between the wheel body and the wheel axle 1 for compensating the lubricating oil between the wheel body and the wheel axle 1.
The first through hole 2 corresponds to the side wall of the annular groove 5, and the first through hole 2 penetrates through the cambered side wall of the annular groove 5 along the radial direction of the wheel body. So set up, when wasing the inside of athey wheel, second through-hole 4 wholly sets up along vertical direction, and fluid and lubricating oil drive metal powder and get into ring channel 5 after, can directly get rid of through-hole 2 on the cambered surface lateral wall of ring channel 5, are favorable to improving cleaning efficiency.
In a further embodiment, the annular groove 5 is centrally disposed in the wheel body, that is, the annular groove 5 may be disposed in the middle of the wheel body, and accordingly, the first through hole 2 is correspondingly disposed in the middle of the wheel body, so that the internal structure of the crawler wheel is symmetrically disposed.
The lubricating oil stored in the annular groove 5 can synchronously circulate to the gaps at the two sides of the annular groove, so that the lubricating oil in the gaps at the two sides of the annular groove 5 is uniformly distributed, and the lubricating effect on the wheel body and the wheel axle 1 is ensured.
When the inside of the crawler wheel is cleaned, the pressure in the space at the two sides of the annular groove 5 is consistent, and the lubricating oil and the fluid at the two sides of the annular groove 5 synchronously circulate and enter the annular groove 5 and are discharged through the first through hole 2, so that the cleaning effect of the crawler wheel is improved.
In a specific embodiment, the wheel body includes a wheel body 7 and a shaft sleeve 8, the shaft sleeve 8 is disposed inside the wheel body 7, and an axis of the shaft sleeve 8 coincides with an axis of the wheel body 7. The shaft sleeve 8 is in interference fit with the wheel body 7. Specifically, the sleeve 8 may be pressed into the inside of the wheel body 7 by a press.
The wheel axle 1 is located inside the axle sleeve 8, the axle sleeve 8 is in clearance fit with the wheel axle 1, and the clearance between the axle sleeve 8 and the wheel axle 1 corresponds to the clearance between the wheel body and the wheel axle 1. The sleeve 8 is in contact with the wheel axle 1 instead of the wheel body 7, so that wear on the wheel body 7 can be reduced.
The first through hole 2 may penetrate through the wheel body 7 and the sleeve 8 at the same time.
When the annular groove 5 is arranged on the wheel body, the annular groove 5 can be arranged on the wheel body 7, the shaft sleeve 8 is arranged in a segmented mode, the two sections of the shaft sleeve 8 are respectively positioned on two sides of the annular groove 5, and at the moment, only the first through hole 2 is required to penetrate through the wheel body 7.
In this embodiment, a gap is formed between the end cover 3 and the wheel body, and the peripheral edge of the end cover 3 is in sealing contact with the wheel body, and the gap between the end cover 3 and the wheel body is isolated from the external space of the crawler wheel and is communicated with the gap between the wheel body and the wheel axle 1.
The second through hole 4 extends in the axial direction of the end cap 3 and penetrates the end cap 3. One end of the second through hole 4 far away from the wheel body penetrates through the end face of the end cover 3 and is communicated with the outer space of the crawler wheel. One end of the second through hole 4, which is close to the wheel body, also penetrates through the end face of the end cover 3 and is communicated with a gap between the end cover 3 and the wheel body. Thus, the second through hole 4 communicates with the gap between the wheel body and the wheel shaft 1 through the gap between the end cover 3 and the wheel body, and thus communicates with the first through hole 2, see fig. 3.
In this embodiment, the crawler wheel further comprises a floating seal 9, the floating seal 9 being arranged between the end cap 3 and the end of the wheel body for achieving a sealing contact between the end cap 3 and the wheel body.
A floating seal cavity is formed between the peripheral edge of the end cover 3 and the end part of the wheel body, and the floating seal cavity is in an annular structure. The floating seal 9 comprises two identical support rings and two sealing rings. The two support rings are in fit contact, and the two sealing rings are respectively positioned on one side of the two support rings away from each other. The sealing ring is in extrusion contact with the end face of the end cover 3 and the end face of the wheel body under the supporting action of the supporting ring. The end faces of the two support rings, which are close to each other, are treated, and can be in sealing contact under the extrusion action of the sealing rings, so that the sealing between the end cover 3 and the wheel body is realized.
When assembling the crawler wheel, the sealing ring needs to be ensured to have certain extrusion deformation, and in the working process of the crawler wheel, if the two supporting rings are worn, the sealing between the end cover 3 and the wheel body can still be kept under the action of the sealing ring. In this way, the sealing performance of the floating sealing element 9 is stable, and the service life of the crawler wheel is prolonged.
The support ring is made of wear-resistant metal, so that the wear efficiency of the support ring can be reduced, and the service life of the floating seal 9 can be prolonged.
The second through hole 4 extends to a position on the end cap 3 corresponding to the annular area surrounded by the floating seal 9.
In this embodiment, a filter element may be further disposed in the second through hole 4, and when a fluid such as lubricating oil is injected into the crawler wheel, the fluid such as lubricating oil may be filtered by using the filter element, so as to filter impurities in the fluid such as lubricating oil, thereby purifying the fluid such as lubricating oil, avoiding impurities from entering between the wheel body and the wheel axle 1, and avoiding abrasion to the wheel body and the wheel axle 1.
As the working time of the crawler wheel increases, the metal powder in the crawler wheel gradually increases, and the temperature of the lubricating oil gradually increases in the process of wearing the wheel body and the wheel axle 1. When the temperature of the lubricating oil rises to a certain degree, the abrasion between the wheel body and the wheel shaft 1 is serious, and the metal powder between the wheel body and the wheel shaft 1 is too much and needs to be cleaned.
In this embodiment, the crawler wheel further includes a temperature detecting element 6, where the temperature detecting element 6 is fixedly disposed in the annular groove 5, and is used for detecting the temperature of the lubricating oil in the annular groove 5.
The temperature detecting element 6 detects the temperature of the lubricating oil in the annular groove 5, and then generates and outputs lubricating oil temperature data.
For example, the temperature detecting element 6 is electrically connected to a control system, and the control system can receive the above-described lubricant temperature data.
After the control system receives the lubricating oil temperature data, the lubricating oil temperature data can be directly output to the display device for a user to acquire.
The control system can also compare the lubricating oil temperature data with a preset threshold value, and when the lubricating oil temperature data is larger than the preset threshold value, warning information is output so as to remind a user of the abrasion state of the crawler wheel, and therefore metal powder in the crawler wheel is cleaned in time.
The temperature detection element 6 is arranged, so that a user can know the internal state of the crawler wheel in time without disassembling.
Specifically, the temperature detecting element 6 may be a temperature sensor.
In an alternative embodiment, a temperature sensor with a buzzer can be also selected, and when the detected temperature data of the lubricating oil is greater than a preset threshold value, an audible alarm signal can be sent out.
In this embodiment, the temperature detecting element 6 has a magnetic attraction portion, and the magnetic attraction portion is fixedly connected to the temperature detecting element 6. The wheel body of the crawler wheel is made of manganese steel and the like, so that the magnetic attraction part can be attracted to the side wall of the annular groove 5, thereby realizing the fixation of the temperature detection element 6, and having simple structure and convenient operation.
Specifically, a permanent magnet may be fixedly connected to the temperature detecting element 6, and the permanent magnet may be formed as the magnetic attraction portion.
The permanent magnet may be, but not limited to, neodymium iron boron magnet.
The following describes the crawler wheel in the embodiment of the present invention in detail with reference to the above embodiments.
In this embodiment, the crawler wheel comprises a wheel body 7, two shaft sleeves 8, a wheel shaft 1, two end covers 3, two groups of floating oil seals and a temperature sensor. Both shaft sleeves 8 are arranged inside the wheel body 7, and the axis of the shaft sleeve 8 coincides with the axis of the wheel body 7. The two shaft sleeves 8 are distributed along the axial direction of the wheel body 7, and a space is reserved between the two shaft sleeves 8. An annular groove 5 is provided on the wheel body 7 at a position corresponding to the pitch as an oil reservoir. The two shaft sleeves 8 are in interference fit with the wheel body 7, and the wheel shaft 1 is positioned in the shaft sleeve 8 and in clearance fit with the shaft sleeve 8. The gap between the sleeve 8 and the axle 1 may be filled with lubricating oil, and the lubricating oil in the annular groove 5 may circulate to the gap between the sleeve 8 and the axle 1. The end covers 3 are respectively positioned at two ends of the wheel body 7, and the end covers 3 are fixedly connected with two ends of the wheel axle 1. A gap is reserved between the end face of the end cover 3 and the end face of the wheel body 7, and the peripheral edge position of the end cover 3 is in sealing contact with the wheel body 7 through a tri-tertiary floating oil seal. A first through hole 2 is provided in the wheel body 7 at a position corresponding to the annular groove 5, the first through hole 2 extending in a radial direction of the wheel body 7, the first through hole 2 communicating to a gap between the wheel shaft 1 and the sleeve 8. The end cover 3 is provided with a second through hole 4, and the second through hole 4 is communicated with a gap between the end surface of the end cover 3 and the end surface of the wheel body 7 and is further communicated with a gap between the wheel shaft 1 and the shaft sleeve 8, namely, the second through hole 4 is communicated with the first through hole 2 through the inner structure of the crawler wheel. The temperature sensor is positioned in the annular groove 5 of the wheel body 7 and is fixed on the side wall of the annular groove 5 by permanent magnet adsorption. The temperature sensor is provided with a buzzer alarm, and can send out an alarm prompt.
So set up, in the track wheel working process, temperature sensor can real-time detection track wheel inside lubricating oil's temperature to generate lubricating oil temperature data. When the temperature data of the lubricating oil is larger than a preset threshold value, an alarm prompt is sent out through a buzzer alarm to prompt a user that the crawler wheel needs to be cleaned. After the user obtains the warning prompt, the crawler wheel stops working, and the wheel body 7 of the crawler wheel is adjusted, so that the first through hole 2 on the wheel body 7 is arranged downwards. Then, the air supply device or the oil supply device is connected with the second through hole 4, and pressurized air or oil is injected into the second through hole 4, so that the lubricating oil and the metal powder in the crawler wheel are discharged from the first through hole 2. Then rotate wheel body 7, make the second through-hole 4 on the wheel body 7 set up upwards, pour into lubricating oil into in the track wheel, utilize the plug screw to block up first through-hole 2 and second through-hole 4 to accomplish the clearance to the track wheel and to the inside change of lubricating oil of track wheel, avoided the accumulation of metal powder in the track wheel inside, can effectively avoid the track wheel to appear the problem of oil leak.
The crawler wheel in the embodiment of the invention has the advantages of simple structure, no need of great structural improvement on the wheel body of the crawler wheel and controllable cost. The crawler wheel of the large-scale equipment has the advantage of long service life, and the maintenance difficulty and the maintenance cost can be reduced.
On the other hand, the embodiment of the invention also provides a crawler running device, which comprises a supporting wheel, a guiding wheel, a supporting chain wheel and a crawler, wherein at least one of the supporting wheel, the guiding wheel and the supporting chain wheel is the crawler wheel provided by any embodiment. The crawler wheel can be cleaned regularly, and metal powder in the crawler wheel can be cleaned regularly, so that the problem of oil leakage caused by the increase of the metal powder in the crawler wheel can be effectively avoided. Therefore, the crawler belt running device in the embodiment has the advantages of convenience in cleaning and maintenance and long service life. The development process of the beneficial effects of the crawler belt running device in the embodiment of the invention is substantially similar to that of the crawler belt wheel, so that the description thereof is omitted here.
The crawler belt may have only the track roller, only the guide roller, or only the sprocket, and the crawler belt may have only the track roller.
In this embodiment, the track roller, the guide roller and the support sprocket of the crawler unit are all configured as the track roller.
In still another aspect, an embodiment of the present invention further provides a working machine, including a crawler wheel or a crawler running apparatus provided in any one of the embodiments above. The crawler wheel and the crawler travelling device in the embodiment can be cleaned regularly, and the crawler wheel and the crawler travelling device are long in service life, convenient to maintain and low in maintenance cost. Therefore, the working machine in the embodiment also has the advantages of long service life, convenient maintenance and low maintenance cost. The development process of the beneficial effects of the working machine in the embodiment of the present invention is substantially similar to the development process of the beneficial effects of the crawler wheel or the crawler travel device described above, and therefore will not be repeated here.
The working machine in the present embodiment may be a construction machine such as an excavator, a pile machine, a rotary drilling machine, or the like.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A crawler wheel, comprising:
a wheel axle;
the wheel body, the axis is parallel with the axis of shaft, the shaft runs through the wheel body, and the wheel body and the shaft clearance fit, be provided with the controllable first through-hole of break-make state on the wheel body, the one end of first through-hole runs through the surface of wheel body, the other end communicates in the clearance between wheel body and the shaft, be provided with the ring channel on the inner wall of wheel body, the ring channel extends along the circumference of wheel body, first through-hole is along the radial run through of wheel body the cambered surface lateral wall of ring channel;
the pair of end covers are respectively and fixedly connected to the two ends of the wheel shaft and are in sealing contact with the end parts of the wheel body, each end cover is provided with a second through hole with controllable on-off state, one end of each second through hole penetrates through the outer surface of each end cover, the other end of each second through hole is communicated with a gap between the wheel body and the wheel shaft, and the first through holes and the second through holes are arranged to enable fluid to enter the gap between the wheel body and the wheel shaft through the second through holes and be discharged to the outside of the crawler wheel through the first through holes.
2. The track wheel of claim 1, wherein the annular groove is centrally disposed in the wheel body.
3. The crawler wheel according to claim 1, wherein a gap is formed between the end cover and the wheel body, and a peripheral edge of the end cover is in sealing contact with the wheel body, the second through hole penetrates the end cover in an axial direction of the end cover, and the second through hole is provided to communicate with the gap between the end cover and the wheel body.
4. The crawler wheel of claim 1, further comprising:
the temperature detection element is fixedly arranged in the annular groove, and is used for detecting the temperature of oil in the annular groove and outputting temperature data of the oil.
5. The crawler wheel according to claim 4, wherein a magnetic attraction portion is provided on the temperature detecting element, the magnetic attraction portion being provided so as to be capable of being attracted to a side wall of the annular groove.
6. The crawler wheel of claim 1, further comprising:
the first blocking piece is used for blocking the first through hole and is detachably connected with the wheel body;
the second blocking piece is used for blocking the second through hole and is detachably connected with the end cover.
7. The track wheel of claim 1, wherein the wheel body comprises a wheel body and a sleeve, the sleeve is disposed inside the wheel body, the axis of the sleeve coincides with the axis of the wheel body, the sleeve is in interference fit with the wheel body, and the sleeve is in clearance fit with the axle.
8. A crawler running gear comprising a thrust wheel, a guide wheel, a support sprocket and a crawler, at least one of the thrust wheel, the guide wheel and the support sprocket being the crawler wheel of any one of claims 1 to 7.
9. A work machine comprising a crawler wheel according to any one of claims 1 to 7 or a crawler travel unit according to claim 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211043528.8A CN115285242B (en) | 2022-08-29 | 2022-08-29 | Crawler wheel, crawler travel device and working machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211043528.8A CN115285242B (en) | 2022-08-29 | 2022-08-29 | Crawler wheel, crawler travel device and working machine |
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| CN115285242A CN115285242A (en) | 2022-11-04 |
| CN115285242B true CN115285242B (en) | 2023-08-22 |
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| CN202211043528.8A Active CN115285242B (en) | 2022-08-29 | 2022-08-29 | Crawler wheel, crawler travel device and working machine |
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