CN117799705A - Balance beam hinged self-propelled chassis - Google Patents

Balance beam hinged self-propelled chassis Download PDF

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Publication number
CN117799705A
CN117799705A CN202410076510.0A CN202410076510A CN117799705A CN 117799705 A CN117799705 A CN 117799705A CN 202410076510 A CN202410076510 A CN 202410076510A CN 117799705 A CN117799705 A CN 117799705A
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CN
China
Prior art keywords
balance beam
sleeve
wheel assembly
fixed
main shaft
Prior art date
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Pending
Application number
CN202410076510.0A
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Chinese (zh)
Inventor
张东旭
侯杰
王轲
刘海燕
黄道乐
肖佳
张程宽
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Hunan Yi'er Mining Technology Co ltd
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Hunan Yi'er Mining Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Hunan Yi'er Mining Technology Co ltd filed Critical Hunan Yi'er Mining Technology Co ltd
Priority to CN202410076510.0A priority Critical patent/CN117799705A/en
Publication of CN117799705A publication Critical patent/CN117799705A/en
Pending legal-status Critical Current

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Abstract

The invention belongs to the technical field of raise boring machines, and particularly discloses a balance beam hinged self-propelled chassis, which comprises: a frame body on which a first wheel assembly is mounted; the central spindle is arranged on the frame main body; the end parts of the central main shaft are respectively provided with a second wheel assembly, and the rotation axis of the second wheel assembly is not coincident with the central axis of the central main shaft; the driving mechanism is arranged on the frame main body and is connected with the second wheel assembly; the driving mechanism is used for driving the second wheel assembly to rotate around the axis of the central spindle; has the following advantages: the support leg support function is reserved, the walking chassis with the tire flexibly replaced position is provided, and the alignment operation can be realized in the walking process.

Description

Balance beam hinged self-propelled chassis
Technical Field
The invention relates to the technical field of raise boring machines, in particular to a balance beam hinged self-propelled chassis.
Background
For raise boring machines, the accuracy of locating the hole after transport to the working location is a critical point. However, the running mechanism of the existing raise boring machine is generally crawler-type and tire hinged, and the purpose of supporting the frame and then positioning is achieved by arranging the landing leg oil cylinders back and forth; the position of the hole positioning is required to be set by the measuring means in advance, the position of the drilling machine is not adjustable, the landing leg oil cylinder needs to be adjusted again once being supported, and repeated operation is time-consuming and labor-consuming.
Therefore, a balance beam hinged self-propelled chassis is provided to solve the above-mentioned problems.
Disclosure of Invention
The present invention aims to provide a balance beam hinged self-propelled chassis to solve or improve at least one of the above technical problems.
In view of this, a first aspect of the present invention is to provide a balance beam articulated self-propelled chassis.
A first aspect of the present invention provides a balance beam hinged self-propelled chassis comprising: a frame body on which a first wheel assembly is mounted; the central spindle is arranged on the frame main body; the end parts of the central spindle are respectively provided with a second wheel assembly, and the rotation axis of the second wheel assembly is not coincident with the central axis of the central spindle; the driving mechanism is arranged on the frame main body and is connected with the second wheel assembly; the driving mechanism is used for driving the second wheel assembly to rotate around the axis of the central spindle.
In any of the above solutions, the second wheel assembly includes a driving wheel and a balance beam, one end of the balance beam is connected to the center spindle, and the other end of the balance beam is connected to the driving wheel; the driving mechanism comprises a front top oil cylinder fixed on the frame main body, and the output end of the front top oil cylinder is connected with the balance beam so as to drive one end of the balance beam connected with the driving wheel to rotate around the central axis.
In any of the above solutions, a leg cylinder is mounted on the frame body, and the leg cylinder is transversely located between the first wheel assembly and the second wheel assembly; when the driving wheel rotates around the central axis, the longitudinal distance between the lowest point of the driving wheel and the lowest point of the supporting leg oil cylinder increases or decreases.
In any of the above solutions, the central spindle includes: the fixed sleeve is fixedly assembled on the frame main body; the main shaft body is sleeved in the inner cavity of the fixed sleeve; the end part of the main shaft body protrudes from the inner cavity and extends outwards; the fixed beams are arranged in two and are respectively sleeved at the end parts of the main shaft body protruding from the inner cavity; the fixed beam is connected with the balance beam.
In any of the above technical solutions, the fixing beam is annular; the inner wall of the fixed beam is attached to the side wall of the main shaft body, and the outer wall of the fixed beam is fixedly connected with the balance beam.
In any of the above technical solutions, the inner wall of the fixed beam is provided with a tapered hole, and the main shaft body is provided with an expansion taper sleeve adapted to the tapered hole.
In any of the above technical solutions, a sealing cover is mounted on an end wall of the expansion taper sleeve, and an edge of the sealing cover is clamped with an inner wall of the fixed beam.
In any of the above technical solutions, an annular gap is formed between the side wall of the main shaft body and the inner wall of the fixed sleeve, and a copper sleeve is inserted in the annular gap.
In any of the above technical solutions, a dust cover is mounted on the end wall of the copper sleeve away from the annular gap, and the side wall of the dust cover abuts against the end wall of the fixing sleeve.
In any of the above technical solutions, a copper pad is assembled between the fixing sleeve and the fixing beam.
Compared with the prior art, the invention has the following beneficial effects:
the traditional raise boring machine running mechanism is mostly tyre running or crawler running, and two groups of landing leg oil cylinders are respectively arranged at the front and the back for supporting the running mechanism when the boring machine is positioned; however, the support leg oil cylinder is too limited, and can only meet one-time positioning, if the positioning is deviated, the support leg oil cylinder needs to be retracted to find the position again.
Additional aspects and advantages of embodiments according to the invention will be apparent from the description which follows, or may be learned by practice of embodiments according to the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a spindle and its connection structure according to the present invention;
fig. 3 is a schematic diagram of a front top cylinder and a connection structure thereof according to the present invention.
The correspondence between the reference numerals and the component names in fig. 1 to 3 is:
1 balance beam, 2 frame main body, 3 center main shaft, 4 front top cylinder, 5 closing cap, 6 expansion taper sleeve, 7 fixed beam, 8 main shaft body, 9 copper sleeve, 10 shield, 11 copper pad, 12 fixed sleeve.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1-3, a walking chassis with a walking beam hinge according to some embodiments of the present invention will be described.
Embodiments of the first aspect of the present invention provide a walking chassis with a balance beam hinge. In some embodiments of the present invention, as shown in fig. 1-3, the balance beam articulated self-propelled chassis comprises:
the frame body 2 has a first wheel assembly mounted thereon.
A center main shaft 3 provided on the frame main body 2; the second wheel assemblies are respectively mounted at the ends of the center spindle 3, and the rotation axes of the second wheel assemblies are not coincident with the center axis of the center spindle 3.
The driving mechanism is arranged on the frame main body 2 and is connected with the second wheel assembly; the drive mechanism is used to drive the second wheel assembly to rotate about the axis of the central spindle 3.
The balance beam 1 provided by the invention is hinged with the self-propelled chassis, the frame main body 2 is a foundation of the whole machine, provides structural support, and is provided with a first wheel assembly; the central spindle 3 is mounted on the frame body 2, and a second wheel assembly is mounted at the end of the central spindle 3, so that the rotation axis of the second wheel assembly is not coincident with the central axis of the central spindle 3, in order to provide additional stability and allow the wheels to rotate on different planes; the second wheel assembly is connected with the central spindle 3, and can provide additional transverse movement capability or allow unidirectional adjustment of the frame due to the fact that the rotation axis of the second wheel assembly is not coincident with the central axis of the spindle; the drive mechanism is used to drive the second wheel assembly in rotation about the central spindle 3 so that the second wheel assembly can be rotated independently of the first wheel assembly, providing additional adjustment capability.
Through the design of the central main shaft 3 and the driving mechanism, the raise boring machine can perform alignment operation in the walking process, and the alignment accuracy is improved; the traditional raise boring machine needs to retract and redeploy the supporting leg oil cylinder when positioning is inaccurate, but the invention allows accurate alignment to be realized by adjusting the position of the second wheel assembly under the condition that the supporting leg is not retracted, so that the repositioning time is reduced; the fine adjustment can be performed without completely stopping the machine, so that the labor intensity of operators is reduced; the design of the second wheel assembly enables the raise boring machine to better adapt to uneven or obstructed terrain and provides better throughput; even when alignment adjustment is performed, the function of supporting the supporting legs is reserved, so that the stability of the whole device is maintained, and the risk in the operation process is reduced; the walking position can be adjusted while the support leg support is maintained, and the drilling positioning precision is improved.
In any of the above embodiments, the second wheel assembly includes a driving wheel and a balance beam 1, one end of the balance beam 1 is connected to the center spindle 3, and the other end of the balance beam 1 is connected to the driving wheel.
The driving mechanism comprises a front top oil cylinder 4 fixed on the frame main body 2, and the output end of the front top oil cylinder 4 is connected with the balance beam 1 so as to drive one end of the balance beam 1 connected with the driving wheel to rotate around the central axis.
In this embodiment, the balance beam 1 is connected to the center spindle 3, and one end of the balance beam 1 is connected to the center spindle 3 to allow the balance beam 1 to rotate around the center spindle 3 like a rocker or lever; the driving wheel is connected to the other end of the balance beam 1, so that the driving wheel can rotate around the central spindle 3, and the balance beam 1 plays roles of transmitting power and adjusting the position of the wheel; the front top cylinder 4 is fixed on the frame body 2, and its output end is connected with the balance beam 1. The telescopic action of the oil cylinder drives the balance beam 1 to rotate, so that a driving wheel connected with the balance beam 1 is driven to rotate around the central main shaft 3.
Allowing accurate position adjustments to be made while the raise boring machine remains stable. The combination of the balance beam 1 and the front top oil cylinder 4 provides a power transmission mode, so that the driving wheels can be finely adjusted in different directions; by accurate control of the front top cylinder 4, a more accurate alignment operation can be achieved and is critical for drilling operations requiring high accuracy; the fine adjustment can be performed under the condition of not completely stopping the machine, so that the repositioning time is reduced, and the working efficiency is improved; by adjusting the position of the balance beam 1, the balance beam can adapt to changeable ground conditions, so that the raise boring machine can keep stable on uneven terrain; the time waste and the potential re-drilling cost caused by inaccurate positioning are reduced; the safety risk possibly caused by frequent movement or unstable positioning is reduced; the system design simplifies the alignment process, thus reducing the complexity of the mechanical operation and possibly the maintenance requirements.
In any of the above embodiments, the leg cylinder is mounted on the frame body 2, and the leg cylinder is laterally located between the first wheel assembly and the second wheel assembly.
Wherein, when the driving wheel rotates around the central axis, the longitudinal distance between the lowest point of the driving wheel and the lowest point of the landing leg oil cylinder increases or decreases.
In this embodiment, the leg cylinders are mounted transversely to the frame body 2 between the first and second wheel assemblies in order to provide stability in the central region of the frame; the leg cylinder may be telescopic to adjust the height of the frame body 2. The extension of the oil cylinder can improve the frame, and the contraction can reduce the frame; when the driving wheel rotates around the central axis, the height of the lowest point of the driving wheel changes due to the action of the balance beam 1; the rotation of the driving wheels and the expansion and contraction of the supporting leg oil cylinders are matched for use, so that the height of the frame can be adjusted in different working stages. When the height of the lowest point of the driving wheel is reduced due to rotation of the driving wheel, the supporting leg oil cylinder can extend out so as to keep the stability of the frame; conversely, when the lowest point of the drive wheel is raised, the leg cylinders may retract to lower the frame. Further, the supporting leg oil cylinder can also be used as a butt joint part for positioning the balance beam hinged self-propelled chassis and the external hole, and the wheel is driven to rotate around the central axis so as to lift the whole height after the supporting leg oil cylinder stretches out, and the whole unidirectional movement is carried out so as to realize alignment.
By properly adjusting the landing leg oil cylinder, the frame can be ensured to be stable under various operation conditions, especially on uneven ground; the design of the landing leg oil cylinder increases the capability of the drilling machine to work on different terrains, whether flat or rugged; the driving wheel and the landing leg oil cylinder are matched for use, so that the flexibility of quick height adjustment in the operation process is provided; by adjusting the height, the drive wheel can be prevented from being damaged under extreme conditions, such as being in contact with ground obstacles at too low a position; the rapid adjustment of the height and the stability can reduce the downtime and improve the overall operation efficiency; on uneven ground, by adjusting the leg cylinders to control the height and balance, the risk of machine tipping can be reduced.
In any of the above embodiments, the center spindle 3 includes:
the fixing sleeve 12 is fixedly assembled on the frame body 2.
The main shaft body 8 is sleeved in the inner cavity of the fixed sleeve 12; the end of the main shaft body 8 protrudes from the inner cavity and extends outwards.
The fixed beams 7 are arranged in two and are respectively sleeved at the end parts of the main shaft body 8 protruding from the inner cavity; the fixed beam 7 is connected with the balance beam 1.
In this embodiment, the fixed bush 12 is mounted on the frame main body 2 as a support point and a rotation bearing of the main shaft body 8. The fixed sleeve 12 holds the main shaft body 8 in a predetermined axial position and allows it to rotate about an axis; the main shaft body 8 is sleeved in the fixed sleeve 12 and can rotate under the support of the fixed sleeve 12. A portion of the main shaft body 8 protrudes out of the cavity and extends outwardly, the extension providing a mounting point for connecting the fixed beam 7 to other structures; there are usually two fixed beams 7, each of which is sleeved on an end of the main shaft body 8. The fixed beam 7 is connected with the balance beam 1, transmits power and supporting force, and allows the balance beam 1 to rotate around the main shaft body 8.
The combination of the fixed sleeve 12 and the main shaft body 8 ensures the stability and reliability of the central main shaft 3, and is a key supporting point in the frame structure; the main shaft body 8 rotates in the fixed sleeve 12, so that direct friction can be reduced, and the service life of the equipment can be prolonged; the connection design of the fixed beam 7 and the main shaft body 8 allows the balance beam 1 to be accurately adjusted, so that the correct position and alignment precision of the driving wheel are ensured; the design of the fixed beam 7 can uniformly distribute the load transferred from the balance beam 1, reduce single-point load and improve the bearing capacity of the whole structure; the configuration of the central spindle 3 allows the connection of other mechanical devices, such as driving mechanisms or additional support structures, providing more functions to the machine.
In any of the above embodiments, the fixing beam 7 is annular; the inner wall of the fixed beam 7 is attached to the side wall of the main shaft body 8, and the outer wall of the fixed beam 7 is fixedly connected with the balance beam 1.
In this embodiment, the inner wall of the annular fixed beam 7 is tightly attached to the side wall of the main shaft body 8, and such design ensures stability and accuracy in rotation. The bonding can reduce the gap and reduce the swing or vibration generated by rotation; the outer wall of the fixed beam 7 is fixedly connected to the balance beam 1, providing a strong fulcrum allowing the balance beam 1 to rotate about the main shaft body 8.
The annular fixed beam 7 provides a large-area contact area, is tightly attached to the main shaft body 8, and increases the stability of the whole structure; the tight fit reduces friction between the components, prolongs the service life of the parts, and reduces maintenance requirements; the annular structure can uniformly distribute load and pressure, so that local abrasion caused by load concentration is avoided; the connection of the fixed beam 7 and the balance beam 1 increases the rigidity of the structure, so that torque can be transmitted more effectively during rotation, and the driving efficiency is improved; the combination of the stable fixed beam 7 and the balance beam 1 can provide accurate control at the time of alignment operation; the design of the annular fixed beam 7 can furthest reduce the alignment error caused by the clearance of parts; the fixed beam 7 of annular construction may be easier to assemble and disassemble and provides a clear mounting interface; the annular design of the fixed beam 7 and the fixed connection of the balance beam 1 can increase the rigidity of the whole assembly, thereby reducing bending and twisting when carrying heavy loads or encountering resistance.
In any of the above embodiments, the inner wall of the fixed beam 7 is provided with a tapered hole, and the main shaft body 8 is provided with an expansion taper sleeve 6 adapted to the tapered hole.
In this embodiment, the conical hole is located on the inner wall of the fixed beam 7, the expansion taper sleeve 6 matched with the conical hole is installed on the main shaft body 8, and the expansion taper sleeve 6 can be expanded by a mechanical method (such as screw compression) or a hydraulic method, so that the outer diameter of the expansion taper sleeve is increased and is tightly attached in the conical hole of the fixed beam 7; the conical design of the expansion cone sleeve 6 allows it to form a tighter fit with the groove when expanded, providing a strong anchor point.
The expansion taper sleeve 6 provides a powerful locking mechanism, so that the connection between the main shaft body 8 and the fixed beam 7 is ensured to be stable under the conditions of high torque and high load; the expansion taper sleeve 6 can be very accurately matched with the taper hole, so that the assembly precision can be greatly improved; the fastening mechanism of the taper sleeve reduces the relative sliding among moving parts, thereby reducing the abrasion and prolonging the service life of the equipment; the expansion taper sleeve 6 is easy to install and disassemble, so that maintenance and replacement work are simplified, and downtime is reduced; the design of the taper sleeve allows the taper sleeve to be stable even under the condition of asymmetric load, and is particularly important for equipment with large working environment changes, such as a raise boring machine; with the expansion of the taper sleeve, the gaps among the parts are eliminated, so that the structural rigidity of the whole assembly is improved; the design of the expansion cone sleeve 6 may eliminate the need for additional axial locating means (e.g., keys or pins) because the cone sleeve itself provides the required locking and locating functions; the taper sleeve expands evenly outwards upon expansion, which results in an even distribution of pressure on the contact surface, avoiding localized stress concentrations.
In any of the above embodiments, the end wall of the expansion taper sleeve 6 is provided with the sealing cover 5, and the edge of the sealing cover 5 is clamped with the inner wall of the fixed beam 7.
In this embodiment, the cover 5 is mounted on the end of the expansion cone sleeve 6 to form a closed space, and protects the expansion cone sleeve 6 and other internal components from the external environment, such as dust, moisture, pollutants, etc.; the edge design of the sealing cover 5 is clamped with the inner wall of the fixed beam 7, and the design allows the sealing cover 5 to be firmly fixed on the fixed beam 7 and is convenient to detach when needed; the cover 5 may also provide additional structural rigidity, help support the position of the expansion cone sleeve 6 and ensure that it remains properly aligned during operation.
By protecting the internal components from contamination, the cover 5 helps to extend the service life of these components, reducing maintenance costs; contaminants in the environment may accumulate on unprotected mechanical parts, resulting in wear and malfunction. The closure 5 effectively prevents accumulation; the clamping design of the sealing cover 5 enables the sealing cover 5 to be easily detached when maintenance or inspection of internal parts is required, and maintenance procedures are simplified; the cover 5 also helps to prevent accidental contact of the operator with the rotating mechanical parts, thus improving the safety of the work; accidental shutdown due to internal part damage is avoided, as the cover 5 reduces the incidence of failure; the cover 5 provides a dust and water proof effect, which is particularly important for patio drills operating in harsh environments; the cover 5 helps to keep the internal lubrication oil clean and free from contamination, ensuring the effectiveness of the lubrication system.
In any of the above embodiments, an annular gap is formed between the side wall of the main shaft body 8 and the inner wall of the fixed sleeve 12, and a copper sleeve 9 is inserted into the annular gap.
In this embodiment, the annular gap between the side wall of the main shaft body 8 and the inner wall of the fixed sleeve 12 allows the copper sleeve 9 to be mounted, the annular gap being sufficient to accommodate the copper sleeve 9 without being too tight, ensuring freedom in rotation; the copper sleeve 9 is installed between the main shaft body 8 and the fixed sleeve 12 as an interface between the two contacts. Copper is a good bearing material providing good sliding properties and self-lubricating ability.
The copper sleeve 9 reduces the direct contact between the metals, thus significantly reducing the wear between the main shaft body 8 and the fixed sleeve 12; copper has good self-lubricating property, is beneficial to keeping smooth movement of a rotating part, and reduces the requirements of maintenance and lubricating oil; copper has high thermal conductivity, can effectively conduct heat from the rotating component, and reduces the risks of heat accumulation and overheating; the copper sleeve 9 can absorb certain vibration, reduce noise and improve the running stability of equipment; the copper bush 9 can compensate certain manufacturing and assembly tolerances, and the assembly precision and performance of the whole assembly are improved; if the copper sleeve 9 is worn or damaged, compared with the replacement of the whole main shaft body 8 or the fixed sleeve 12, the copper sleeve 9 is more economical and convenient to replace; copper has good corrosion resistance, an important property for equipment used in harsh environments; due to the wear resistance and self-lubricity of the copper sleeve 9, maintenance costs and downtime are correspondingly reduced.
In any of the above embodiments, the end wall of the copper sleeve 9 remote from the annular gap is fitted with a dust cap 10, the side wall of the dust cap 10 abutting the end wall of the fixed sleeve 12.
In this embodiment, a dust cap 10 is mounted on the end of the copper sleeve 9 remote from the annular gap, covering the end of the copper sleeve 9. The side wall of the dust cover 10 is tightly abutted with the end wall of the fixed sleeve 12 to form a closed space; the main function of the dust cap 10 is to prevent dust, contaminants and other possible foreign matter from entering the annular gap and the inside of the copper sleeve 9, thereby protecting the contact surface between the main shaft body 8 and the stationary sleeve 12 from contamination; the tight abutment between the dust cap 10 and the end wall of the mounting sleeve 12 provides an effective seal, further enhancing the dust protection effect.
Preventing dust and contaminants from entering critical components can significantly extend the useful life of these components; the dust cap 10 reduces contamination inside the copper sleeve 9 and the annular gap, thereby reducing the frequency of cleaning and maintenance; the dust cover 10 helps to maintain the lubrication state of the copper bush 9 and other moving parts, preventing the lubricant from being contaminated; the dust cap 10 helps to improve the reliability of the overall mechanical system by reducing contamination and wear; the protection component is not affected by pollutants, so that faults and shutdown caused by pollution can be reduced; the dust cover 10 also isolates and reduces noise due to friction between components to some extent; since the dust cap 10 is generally designed to be easily installed and removed, periodic inspection and maintenance is facilitated.
In any of the above embodiments, a copper pad 11 is fitted between the fixing sleeve 12 and the fixing beam 7.
In this embodiment, the copper pad 11 is placed between the fixing sleeve 12 and the fixing beam 7 for adjusting the gap between the two, which helps to ensure a correct fit between the components, avoiding loosening or overtightening; copper pad 11 may provide a degree of sealing against lubricant leakage or contamination into critical mechanical components; the copper material has certain elasticity, can play a role in damping and buffering, and reduces damage of vibration and impact to mechanical parts.
The copper pad 11 can ensure the accurate matching between mechanical components, and the operation precision of the whole device is improved; the copper pad 11 reduces the direct metal contact between the fixing sleeve 12 and the fixing beam 7, thereby reducing wear; the cushioning and shock absorbing action of the copper pad 11 helps to protect critical components from excessive forces and vibrations; copper pad 11 helps to extend the service life of the overall mechanical system by reducing wear and providing additional protection; copper pad 11 may provide a more uniform force distribution, increasing the stability of the mechanical assembly; copper pad 11 can be inspected, maintained or replaced relatively easily if necessary without the need to disassemble the entire mechanical device; the copper material has good corrosion resistance, and is helpful for preventing corrosion-related damage; copper has good heat conduction performance, and can help to dissipate heat and prevent overheating.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims (10)

1. A walking chassis with a balance beam hinged thereto, comprising:
a frame body on which a first wheel assembly is mounted;
the central spindle is arranged on the frame main body; the end parts of the central spindle are respectively provided with a second wheel assembly, and the rotation axis of the second wheel assembly is not coincident with the central axis of the central spindle;
the driving mechanism is arranged on the frame main body and is connected with the second wheel assembly; the driving mechanism is used for driving the second wheel assembly to rotate around the axis of the central spindle.
2. The balance beam hinged self-propelled chassis of claim 1, wherein the second wheel assembly comprises a drive wheel and a balance beam, one end of the balance beam being connected to the center main axle and the other end of the balance beam being connected to the drive wheel; and
the driving mechanism comprises a front top oil cylinder fixed on the frame main body, and the output end of the front top oil cylinder is connected with the balance beam so as to drive one end of the balance beam connected with the driving wheel to rotate around the central axis.
3. The balance beam articulated self-propelled chassis of claim 2, wherein a leg cylinder is mounted on the frame body and is located laterally between the first wheel assembly and the second wheel assembly;
when the driving wheel rotates around the central axis, the longitudinal distance between the lowest point of the driving wheel and the lowest point of the supporting leg oil cylinder increases or decreases.
4. The balance beam hinged self-propelled chassis of claim 2, wherein the center main axle comprises:
the fixed sleeve is fixedly assembled on the frame main body;
the main shaft body is sleeved in the inner cavity of the fixed sleeve; the end part of the main shaft body protrudes from the inner cavity and extends outwards;
the fixed beams are arranged in two and are respectively sleeved at the end parts of the main shaft body protruding from the inner cavity; the fixed beam is connected with the balance beam.
5. The balance beam articulated self-propelled chassis of claim 4, wherein the stationary beam is annular; the inner wall of the fixed beam is attached to the side wall of the main shaft body, and the outer wall of the fixed beam is fixedly connected with the balance beam.
6. The balance beam hinged self-propelled chassis of claim 5, wherein the inner wall of the fixed beam is provided with a conical hole, and the main shaft body is provided with an expansion taper sleeve matched with the conical hole.
7. The walking chassis of claim 6, wherein the end wall of the expansion cone sleeve is provided with a sealing cover, and the edge of the sealing cover is clamped with the inner wall of the fixed beam.
8. The balance beam hinged self-propelled chassis of claim 4, wherein an annular gap is formed between the side wall of the main shaft body and the inner wall of the fixed sleeve, and a copper sleeve is inserted in the annular gap.
9. The walking chassis of claim 8, wherein the end wall of the copper sleeve remote from the annular gap is fitted with a dust cap, the dust cap side wall abutting the end wall of the stationary sleeve.
10. The balance beam articulated self-propelled chassis of claim 9, wherein a copper pad is fitted between the stationary sleeve and the stationary beam.
CN202410076510.0A 2024-01-18 2024-01-18 Balance beam hinged self-propelled chassis Pending CN117799705A (en)

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CN202410076510.0A CN117799705A (en) 2024-01-18 2024-01-18 Balance beam hinged self-propelled chassis

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Application Number Priority Date Filing Date Title
CN202410076510.0A CN117799705A (en) 2024-01-18 2024-01-18 Balance beam hinged self-propelled chassis

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CN117799705A true CN117799705A (en) 2024-04-02

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CN218197897U (en) * 2022-11-07 2023-01-03 西安安森智能仪器股份有限公司 Chassis with driving device
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CN116752900A (en) * 2023-07-31 2023-09-15 连云港前沿重工机械有限公司 High-stability chassis for core drilling machine

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