Support wheel assembly and tracked vehicle

Abstract

The present application relates to the technical fields of engineering machinery, and discloses a supporting wheel assembly and a tracked vehicle, the supporting wheel assembly comprising: two supports, which are arranged at intervals along a first direction, a space between the two supports forming a mounting space, the supports having first assembly parts and second assembly parts; a wheel body, which is rotatably arranged in the mounting space and connected with the first assembly part of each support; a connecting column, which is connected with the second assembly part, each support being connected with a vehicle frame through the connecting column; and a strain detection assembly, which is arranged on the connecting column, the present application arranging the strain detection assembly on the connecting column, the supports being directly assembled and connected with the vehicle frame through the connecting column, the real stress data of the supporting wheel assembly being obtained by collecting the stress change of the connecting column through the strain detection assembly, the overall structure being simple and compact, the strain detection assembly being capable of more directly and accurately obtaining the stress condition of the supporting wheel assembly, and the strain detection assembly still being capable of maintaining reliable detection capability in a harsh external environment.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, specifically to track roller assemblies and tracked vehicles. Background Technology

[0002] The operational performance of large tracked vehicles (such as excavators, bulldozers, and tanks) is closely related to the stress state of the track system. As a crucial component of the track system, the track roller's primary function is to bear the weight of the vehicle and transfer the load to the tracks. Therefore, the stress state of the track roller directly affects the operational stability and service life of the tracked vehicle. Since track rollers typically operate under high loads, strong impacts, and complex dynamic environments, it is necessary to monitor their stress state to ensure the continuous and reliable operation of large tracked vehicles.

[0003] Currently, the common method for measuring the force on support rollers involves placing an external detection structure on one side of the support roller. When the support roller shifts and comes into contact with the detection structure, the detection structure deforms under the influence of the support roller. The detection structure then converts its deformation into an electrical signal, thus reflecting the force on the support roller. However, in this indirect force measurement method, the detection structure is easily affected by external factors such as mud, water, and impact vibrations, and it cannot accurately reflect the force on the support roller, resulting in difficulties in effective detection. Summary of the Invention

[0004] In view of this, the present invention provides a track roller assembly and a tracked vehicle to solve the problem that the existing force measurement methods for track rollers are difficult to detect effectively.

[0005] In a first aspect, the present invention provides a support roller assembly having a vertical first direction and a second direction, comprising: two supports spaced apart along the first direction, the space between the two supports forming an installation space, each support having a first mounting portion and a second mounting portion; a wheel body rotatably disposed in the installation space and connected to the first mounting portion of each support; a connecting post extending along the second direction and connected to the second mounting portion, each support being connected to a frame via the connecting post, the connecting post being elastic; and a strain detection assembly disposed on the connecting post for detecting stress changes in the connecting post.

[0006] Beneficial effects: By installing a strain detection component on the connecting column, the support can be directly assembled and connected to the frame through the connecting column. Since the connecting column is an elastic component and directly bears the load, the stress change of the connecting column can be collected by the strain detection component to obtain the real force data of the support roller assembly. The overall structure is simple and compact. Compared with the detection structure that requires external triggering, the strain detection component in this embodiment can obtain the force condition of the support roller assembly more directly and accurately. It can maintain reliable detection capability even in harsh external environments, effectively solving the problem that the existing force measurement methods for support rollers are difficult to detect effectively.

[0007] In one alternative embodiment, along the second direction, the connecting column includes a first connecting part, a support part, and a second connecting part connected in sequence. The first connecting part is connected to the frame, the second connecting part is connected to the second assembly part, the support part is a cylindrical structure, and the strain detection component is disposed on the support part.

[0008] Beneficial effects: This type of connecting column is simple and reliable, and the cylindrical support structure can more accurately and effectively reflect the overall stress of the support roller assembly.

[0009] In one alternative embodiment, at least a portion of the cross-sectional area of ​​both the first connecting portion and the second connecting portion is larger than the cross-sectional area of ​​the support portion. The first connecting portion has a first limiting surface for abutting and engaging with the frame, and the second connecting portion has a second limiting surface for abutting and engaging with the second assembly portion.

[0010] Beneficial effects: This type of first and second connecting parts have higher structural strength and can also effectively increase their own stress-bearing area, so that they can play a more stable role in connection and load-bearing after assembly.

[0011] In one optional embodiment, the strain detection assembly includes a plurality of first strain gauges, with at least two first strain gauges symmetrically arranged on the outer wall of the support portion along the radial direction of the support portion; and / or; the strain detection assembly includes a plurality of second strain gauges, with at least two groups of second strain gauges symmetrically arranged on the outer wall of the support portion along the radial direction of the support portion, each group of second strain gauges having the same number of second strain gauges, and the second strain gauges in each group of second strain gauges being spaced apart along the axial direction of the support portion.

[0012] Beneficial effects: The strain testing component has a simple and reliable testing method, and can detect vertical loads, horizontal loads and torsional loads, so as to more accurately reflect the stress state of the support roller assembly.

[0013] In one optional embodiment, the first connecting part includes a first connecting section and a first bearing section. The first connecting section is connected to the support part through the first bearing section. The end face of the first bearing section away from the support part forms a first limiting surface. The outside of the first connecting section is provided with external threads. The first connecting section is adapted to be detachably connected to the threaded hole of the frame. The second connecting part includes a second connecting section and a second bearing section. The second connecting section is connected to the support part through the second bearing section. The end face of the second bearing section away from the support part forms a second limiting surface. The outer side of the second connecting section is provided with external threads. The second assembly part is provided with a connecting hole. The second connecting section passes through the connecting hole and is detachably connected to the second assembly part through a nut.

[0014] Beneficial effects: This connection method is simple and reliable. The first connecting section is connected by a thread, which allows it to effectively fit with the threaded holes of various frames. In addition, the second connecting section is connected by a thread, which facilitates both installation and disassembly.

[0015] In one alternative embodiment, a first assembly part and a second assembly part are arranged along a first direction. The first assembly part has a through hole extending along the first direction, and the second assembly part has an arc-shaped groove communicating with the through hole. The wheel body is rotatably disposed in the installation space via a bearing shaft, which passes through the through hole and enters the arc-shaped groove.

[0016] Beneficial effects: This type of support has better integration, and the bearing shaft cooperates with both the first and second assembly parts, which makes the wheel body more stable and reliable after assembly.

[0017] In one alternative embodiment, the track roller assembly also has a third direction perpendicular to the first and second directions respectively. Along the third direction, the second assembly has a connecting surface formed on both sides of the arc groove. At least one connecting hole is provided on each of the two connecting surfaces. A second assembly is connected to the frame through at least two connecting posts.

[0018] Beneficial effects: This type of second assembly provides space for the installation of connecting columns, making the overall track roller assembly more compact. At the same time, the connection of a support to the frame through multiple connecting columns also improves the load-bearing stability and stress uniformity of the track roller assembly during operation.

[0019] In one alternative embodiment, the connecting column is made of either 40Cr steel or MnB steel.

[0020] Beneficial effects: This type of connecting column has good elasticity and long fatigue life, ensuring its long-term stability under complex working conditions.

[0021] Secondly, the present invention also provides a tracked vehicle, comprising: a frame having multiple mounting positions; and multiple aforementioned track roller assemblies, each corresponding to one of the mounting positions, wherein the track roller assemblies are connected to the mounting positions via their own connecting posts.

[0022] In one optional embodiment, the chassis is provided with a processing module, a conveying module and a power module. The strain detection component of the track roller assembly is electrically connected to the conveying module through the processing module. The power module is electrically connected to both the strain detection component and the processing module. The strain detection component of the track roller assembly can directly use the processing module, conveying module and power module of the tracked vehicle itself, which can effectively save the number of parts and reduce the structural complexity of the track roller assembly.

[0023] Beneficial effects: The strain detection component of the track roller assembly can directly use the processing module, conveying module and power module of the tracked vehicle itself, which can effectively save the number of parts and reduce the structural complexity of the track roller assembly. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a front view of a track roller assembly after it has been assembled with a vehicle frame, according to an embodiment of the present invention. Figure 2 for Figure 1 A cross-sectional view of the support roller assembly at point AA; Figure 3 for Figure 1 A three-dimensional schematic diagram of the connecting column of the support roller assembly shown; Figure 4 for Figure 3 A schematic diagram showing the connection column after the strain detection assembly has been installed. Figure 5 for Figure 1 A three-dimensional schematic diagram of the support of the support roller assembly shown; Figure 6 for Figure 3 A schematic diagram showing the arrangement and connection method of the first strain gauge on the connecting column; Figure 7 for Figure 3 The diagram shows the arrangement and connection method of the second strain gauge on the connecting column.

[0026] Explanation of reference numerals in the attached figures: 1. Support; 101. First assembly part; 1011. Through hole; 102. Second assembly part; 1021. Connecting hole; 1022. Arc groove; 1023. Connecting surface; 1024. Mating hole; 2. Wheel body; 3. Connecting post; 301, First connecting part; 3011, First connecting section; 3012, First bearing section; 30121, First limiting surface; 30122, Mating surface; 302. Support section; 303, Second connecting part; 3031, Second connecting section; 3032, Second bearing section; 30321, Second limiting surface; 4. Strain detection assembly; 401, First strain gauge; 402, Second strain gauge; 5. Chassis; 6. Processing module; 7. Nut; 8. Bearing shaft; 9. Fastener;

[0027] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The following is combined with Figures 1 to 7 The following describes embodiments of the present invention.

[0030] According to an embodiment of the present invention, a support roller assembly is provided, having a vertical first direction X and a second direction Y, comprising: two supports 1, a wheel body 2, a connecting post 3, and a strain detection assembly 4. The two supports 1 are spaced apart along the first direction X, and the space between the two supports 1 forms an installation space. The supports 1 have a first mounting part 101 and a second mounting part 102. The wheel body 2 is rotatably disposed in the installation space and is respectively connected to the first mounting part 101 of each support 1. The connecting post 3 extends along the second direction Y and is connected to the second mounting part 102. Each support 1 is connected to a frame 5 through the connecting post 3, and the connecting post 3 is elastic. The strain detection assembly 4 is disposed on the connecting post 3 for detecting stress changes in the connecting post 3.

[0031] In this embodiment of the track roller assembly, a strain detection component 4 is installed on the connecting column 3. The support 1 can be directly assembled and connected to the frame 5 through the connecting column 3. Since the connecting column 3 is an elastic element and directly bears the load, the stress change of the connecting column 3 can be collected by the strain detection component 4 to obtain the real force data of the track roller assembly. The overall structure is simple and compact. Compared with the detection structure that requires external triggering, the strain detection component 4 of this embodiment can obtain the force condition of the track roller assembly more directly and accurately. It can maintain reliable detection capability even in harsh external environments, effectively solving the problem that the existing force measurement methods of track rollers are difficult to detect effectively.

[0032] It should be noted that, in this embodiment, the first direction X refers to Figure 2 The direction indicated by the middle arrow "X" is also the width direction of the vehicle, and the second direction Y refers to... Figure 1 and Figure 2 The direction indicated by the middle arrow "Y" is also the vehicle's height direction, while the third direction Z refers to... Figure 1 The direction of the "Z" indicated by the middle arrow is also the length direction of the vehicle.

[0033] Specifically, since the strain detection component 4 in this embodiment directly obtains the stress change of the connecting column 3, it can still reliably obtain the stress change of the connecting column 3 even when there is interference from external factors such as mud, water and impact vibration in the environment.

[0034] In one possible implementation, such as Figure 3 and Figure 4 As shown, along the second direction Y, the connecting column 3 includes a first connecting part 301, a support part 302, and a second connecting part 303 connected in sequence. The first connecting part 301 is connected to the frame 5, the second connecting part 303 is connected to the second assembly part 102, the support part 302 is a cylindrical structure, and the strain detection component 4 is disposed on the support part 302. This type of connecting column 3 is simple and reliable, and the cylindrical support part 302 can more accurately and effectively reflect the overall stress condition of the track roller assembly.

[0035] Specifically, there is no limitation on the specific structural form of the first connecting part 301 and the second connecting part 303. They can be cylindrical, block-shaped, tubular, etc., as long as they can be stably and reliably assembled and connected with the corresponding frame 5 and the second assembly part 102.

[0036] Furthermore, there are no restrictions on the connection method between the connecting column 3 and the frame 5 and the second assembly part 102, respectively. It can be a non-removable form such as welding, or a detachable connection method such as bolt connection.

[0037] In one possible implementation, such as Figure 3and Figure 4 As shown, at least a portion of the cross-sectional area of ​​the first connecting part 301 and the second connecting part 303 is larger than the cross-sectional area of ​​the support part 302. The first connecting part 301 has a first limiting surface 30121 for abutting and cooperating with the frame 5, and the second connecting part 303 has a second limiting surface 30321 for abutting and cooperating with the second assembly part 102. This type of first connecting part 301 and second connecting part 303 has higher structural strength and can also effectively increase its own force-bearing area, so that it can play a more stable role in connection and load-bearing after assembly.

[0038] Specifically, such as Figure 3 As shown. This type of connecting post 3 can form an annular groove structure on the outside of the support 302. When a large external object approaches the support 302 radially, both the first connecting part 301 and the second connecting part 303 can act as a barrier. The larger object will first contact the first connecting part 301 and the second connecting part 303. Therefore, this type of connecting post 3 can also improve the ability of the strain detection component 4 to resist external interference.

[0039] In one possible implementation, such as Figure 6 and Figure 7 As shown, the strain detection assembly 4 includes a plurality of first strain gauges 401. At least two first strain gauges 401 are symmetrically arranged on the outer wall of the support portion 302 along the radial direction of the support portion 302. The strain detection assembly 4 also includes a plurality of second strain gauges 402. At least two sets of second strain gauges 402 are symmetrically arranged on the outer wall of the support portion 302 along the radial direction of the support portion 302. The number of second strain gauges 402 in each set is the same. The second strain gauges 402 in each set are spaced apart along the axial direction of the support portion 302. The strain detection assembly 4 has a simple and reliable detection method and can detect vertical loads, horizontal loads, and torsional loads, so as to more accurately reflect the stress state of the support roller assembly.

[0040] Specifically, such as Figure 6 and Figure 7 As shown, the strain detection component 4 is fixed on the outer wall of the connecting column 3. The strain detection component 4 is preferably connected by adhesive bonding. In order to improve the reliability of the fixation, the outer wall of the connecting column 3 is subjected to high-precision polishing to ensure that the surface smoothness meets the bonding requirements of the strain gauge. At the same time, after the two are assembled, an anti-corrosion coating is also required to enhance its environmental adaptability.

[0041] Among them, such as Figure 6 and Figure 7 As shown, the connection method of the multiple first strain gauges 401 and the connection method of the multiple second strain gauges 402 both adopt a Wheatstone bridge structure. Figure 6The multiple first strain gauges 401 in the circuit adopt a full-bridge circuit connection. Figure 7 The multiple second strain gauges 402 in the circuit are connected in the form of a half-bridge circuit.

[0042] like Figure 6 As shown, this is the case where the support roller assembly is only subjected to vertical force, where FN is the vertical force, M is the bending moment, and R1, R2, R3, and R4 are all first strain gauges 401. Additionally, R2 and R4 need to be attached. When the vertical force FN is transmitted to the connecting column 3, it will carry a bending moment M. At this time, the connecting column 3 is subjected to a combination of compression and bending deformation. To eliminate the influence of bending moment M and temperature, the first strain gauges 401 here adopt a full-bridge circuit. R1 and R3 are respectively bonded to the symmetrical sides of the connecting column 3 in the radial direction. Additionally, R2 and R4 need to be attached as temperature compensation gauges. At this time, R2 and R4 do not need to be attached to the connecting column 3; they can be attached to a metal sheet and fixed magnetically near the connecting column 3, for example, on the second connecting part 303. At this time, R2 and R4 do not generate load strain, only temperature strain. The strain generated by the first strain gauge 401 attached to the connecting column 3 consists of three parts: the bending normal strain generated by the bending moment. The compressive strain generated by axial force and the temperature strain caused by temperature changes The vertical force FN creates compressive normal strain at R1 and R3, both of equal magnitude and direction. The bending moment M creates bending compressive normal strain at R1 and bending tensile normal strain at R3, both of equal magnitude and opposite direction. By using a full bridge connection, the forces at R1 and R3 are added together, which can eliminate the strain effect of the bending moment M.

[0043] The formula for calculating the strain generated by strain gauge R1 is:

[0044] The formula for calculating the strain generated by strain gauge R2 is:

[0045] The formula for calculating the strain generated by strain gauge R3 is:

[0046] The formula for calculating the strain generated by strain gauge R4 is:

[0047] The instrument reading is:

[0048] This calculation process can be used to obtain the strain generated by the vertical force FN.

[0049] like Figure 7As shown, this is the case where the support roller assembly is only subjected to lateral forces, where: The vertical force is M, the bending moment is R, and R1, R2, R3, and R4 are all second strain gauges 402. When the support roller is subjected to only lateral force, the lateral force is... The bending moment M is also transmitted from the track link to the connecting column 3, resulting in bending deformation. To eliminate the influence of bending moment and temperature, strain gauges are attached along the axial direction of the half-bridge circuit.

[0050] The strain generated by the second strain gauge 402 attached to the connecting column 3 consists of three parts: the bending normal strain generated by the bending moment. Bending normal strain generated by lateral force Temperature strain caused by temperature changes Lateral force A bent rectangle is generated at points R1 and R2, resulting in a bending and stretching effect. However, the bending moments at the two locations are in the same direction but different in magnitude, producing strains of different magnitudes. and The bending moment M generates bending moments at R1 and R2, creating a bending and stretching effect. Since the bending moment M has the same direction and magnitude, the effect of bending moment M can be eliminated by using adjacent half-bridges for connection. The difference between the two half-bridges can eliminate the effect of bending moment M.

[0051] The formula for calculating the strain generated by strain gauge R1 is:

[0052] The formula for calculating the strain generated by strain gauge R2 is:

[0053] According to the calculation method for the half-bridge route, the instrument reading is:

[0054]

[0055] Where S is Figure 7 The distance between the bottom of R1 and the top of R4, where W is the flexural modulus and E is the elastic modulus.

[0056] Calculation The calculation formula is:

[0057] The vertical force can be obtained through this calculation process. The resulting strain.

[0058] In one possible implementation, such as Figure 3 and Figure 4 As shown, the first connecting portion 301 includes a first connecting section 3011 and a first bearing section 3012. The first connecting section 3011 is connected to the support portion 302 through the first bearing section 3012. The end face of the first bearing section 3012 away from the support portion 302 forms a first limiting surface 30121. The outside of the first connecting section 3011 is provided with external threads, and the first connecting section 3011 is adapted to be detachably connected to the threaded hole of the frame 5. The second connecting portion 303 includes a second connecting section 3031 and a second bearing section 3032. The second connecting section 3031 is connected to the support portion 302 through the second bearing section 3032. The end face of the second bearing section 3032 away from the support part 302 forms a second limiting surface 30321. The second connecting section 3031 is provided with external threads. The second assembly part 102 is provided with a connecting hole 1021. The second connecting section 3031 passes through the connecting hole 1021 and is detachably connected to the second assembly part 102 through the nut 7. This connection method is simple and reliable. The first connecting section 3011 is connected by threads, so that the first connecting section 3011 can be effectively matched with the threaded holes of various frames 5. In addition, the second connecting section 3031 is connected by threads, which is convenient for installation and disassembly.

[0059] Specifically, such as Figure 3 As shown, in order to facilitate the installation of the connecting column 3, the outer wall of the first bearing section 3012 is provided with mating surfaces 30122 on both radially opposite sides. The mating surfaces 30122 are flat to facilitate mating with the torque wrench. In addition, such as Figure 2 As shown, the support roller assembly also includes an end cap with a hole for the second assembly part 102 to pass through. After the second assembly part 102 passes through the end cap, it is locked and fixed by a nut 7.

[0060] Furthermore, the first connecting section 3011 also needs to be fixedly connected to the frame 5 with locking components such as nuts. The length of the first connecting section 3011 can be selected according to the length of the longest threaded hole of the commonly used frame 5 so that the first connecting section 3011 can be adapted to threaded holes of various lengths.

[0061] It should be noted that the distance between the first limiting surface 30121 and the frame 5 can be changed as needed. When the first connecting section 3011 changes its mating position with the threaded hole of the frame 5, if the final position results in a gap between the first limiting surface 30121 and the frame 5, a shim of corresponding thickness needs to be placed between the first limiting surface 30121 and the frame 5 to ensure a reliable connection between the two.

[0062] In one possible implementation, such as Figure 5As shown, the first assembly part 101 and the second assembly part 102 are arranged along the first direction X. The first assembly part 101 has a through hole 1011 extending along the first direction X, and the second assembly part 102 has an arc-shaped groove 1022 communicating with the through hole 1011. The wheel body 2 is rotatably disposed in the installation space through the bearing shaft 8. The bearing shaft 8 passes through the through hole 1011 and enters the arc-shaped groove 1022. This type of support 1 has better integrity. The bearing shaft 8 cooperates with the first assembly part 101 and the second assembly part 102, which makes the wheel body 2 work more stably and reliably after assembly.

[0063] Specifically, such as Figure 5 As shown, the inner wall of the arc groove 1022 is an arc surface, and the arc angle corresponding to the arc surface is 180 degrees.

[0064] In one possible implementation, such as Figure 5 As shown, the track roller assembly also has a third direction Z that is perpendicular to the first direction X and the second direction Y respectively. Along the third direction Z, the second assembly part 102 has a connecting surface 1023 on both sides of the arc groove 1022. At least one connecting hole 1021 is provided on each of the two connecting surfaces 1023. A second assembly part 102 is connected to the frame 5 through at least two connecting posts 3. This type of second assembly part 102 can provide space for the installation of the connecting posts 3, making the track roller assembly more compact. At the same time, the fact that a support 1 is connected to the frame 5 through multiple connecting posts 3 can also improve the load-bearing stability and force uniformity of the track roller assembly during operation.

[0065] Since there are a large number of connecting columns 3, the first strain gauge 401 and the second strain gauge 402 can be arranged in groups on different connecting columns 3 to reduce the difficulty of arrangement.

[0066] Specifically, such as Figure 5 As shown, the first assembly part 101 is a ring structure, and the second assembly part 102 is a semi-enclosed structure connected to the axial end face of the first assembly part 101. The first assembly part 101 and the second assembly part 102 are integral components.

[0067] The arc-shaped groove 1022 is provided with a mating hole 1024, and the bearing shaft 8 is provided with a hole extending radially. The bearing shaft 8 is fixedly connected to the support 1 by fastening components that pass through its own hole and the mating hole 1024 in sequence.

[0068] Furthermore, such as Figure 1 and Figure 5 As shown, the support 1 is symmetrically arranged along the plane containing the axis. Each connecting surface 1023 in a second assembly part 102 is provided with a connecting hole 1021. Each support 1 is connected to the frame 5 through two symmetrically arranged connecting columns 3, which can effectively improve the uniformity of the force on the support 1.

[0069] In one possible implementation, the connecting column 3 is made of either 40Cr steel or MnB steel. This type of connecting column 3 has good elastic properties and high fatigue life, so as to ensure its long-term stability under complex working conditions.

[0070] Preferably, the connecting column 3 is made of MnB steel.

[0071] The assembly process of the support roller assembly in this embodiment will be described below: First, inspect the condition of the threaded holes in the frame, ensuring that the internal and external threads are clean and undamaged, and confirm that the shape and size of the threaded holes meet the design requirements. Next, align the threaded section 3011 of the first connecting segment of the connecting post 3 with the threaded hole in the frame, manually screw it in to a certain depth, and then tighten it with a torque wrench according to the designed torque value to ensure a firm and stable connection between the connecting post 3 and the frame. Then, conduct a comprehensive inspection of the track roller assembly, including the end cap and wheel body, to ensure it is free from damage and deformation. Clean the contact area between the track roller end cap and the connecting post 3 to ensure the connection surface is smooth and free of impurities. Using lifting equipment, lift the track roller assembly to the bottom of the frame, adjust the position of the track roller so that the center hole of the end cap is aligned with the center axis of the second connecting segment 3031 of the connecting post 3, and slowly raise the track roller until the end cap contacts the second connecting segment 3031 of the connecting post 3, ensuring that the mating parts of the two are completely fitted without gaps. Next, take a high-strength nut and screw it into the threaded section of the second connecting segment 3031 of the connecting column 3. Tighten it gradually until the end cap is firmly pressed against the contact surface of the second connecting segment 3031 of the connecting column 3. Then, use a special torque wrench to complete the final tightening according to the torque value required by the design to ensure a reliable connection between the support roller and the connecting column 3. Finally, conduct a comprehensive inspection of the installation quality to confirm that the connection between the connecting column 3 and the frame is good, without looseness, misalignment, or other abnormalities. Check whether the connection between the support roller and the second connecting segment 3031 of the connecting column 3 is firm, and confirm that the tightness of the nut and the quality of the contact between the end cap cone surface meet the requirements. At the same time, test the strain gauge signal output on the connecting column 3 to ensure that the signal acquisition module is working properly, and check whether the rotation of the support roller is flexible and without jamming, to ensure that the accuracy of the entire installation process and the functionality of the device meet the design requirements.

[0072] During assembly of the strain gauge detection component 4, the surface of the support portion 302 in the middle of the connecting column 3 undergoes rigorous pretreatment, including degreasing, cleaning, and polishing, to ensure a smooth surface free of dirt and defects. The strain gauge detection component 4 is firmly bonded to the cylindrical section surface using high-strength conductive adhesive and sealed with a protective coating to prevent corrosion from external environmental factors such as mud and moisture. Furthermore, the lead wires of the strain gauge detection component 4 are routed through pre-reserved wire grooves inside the connecting column 3 and connected to an external signal acquisition module using shielded cables. The outer layer of the shielded cable is covered with a wear-resistant protective sleeve, effectively improving the durability and reliability of the circuit.

[0073] According to an embodiment of the present invention, in another aspect, a tracked vehicle is provided, comprising: a frame 5 and a plurality of the above-described track roller assemblies, the frame 5 having a plurality of mounting positions; the plurality of track roller assemblies are arranged in a one-to-one correspondence with the mounting positions, and the track roller assemblies are connected to the mounting positions via their own connecting posts 3.

[0074] Tracked vehicles include excavators, bulldozers, and tanks.

[0075] In one possible implementation, the chassis 5 is provided with a processing module 6, a conveying module and a power module. The strain detection component 4 of the track roller assembly is electrically connected to the conveying module through the processing module 6. The power module is electrically connected to both the strain detection component 4 and the processing module 6. The strain detection component 4 of the track roller assembly can directly use the processing module 6, the conveying module and the power module of the tracked vehicle itself, which can effectively save the number of parts and reduce the structural complexity of the track roller assembly.

[0076] The processing module 6, mounted on the upper part of the chassis, integrates signal amplification, filtering and anti-interference functions, and analog-to-digital conversion. During measurement, the processing module 6 effectively amplifies the weak signal from the strain gauge, ensuring the signal strength meets the requirements of subsequent data processing. Simultaneously, the built-in filter removes external noise interference, and combined with the hardware anti-interference design, further improves signal quality. The amplified analog signal is converted into a digital signal through analog-to-digital conversion for subsequent data analysis, storage, and remote transmission processing, thereby achieving efficient monitoring of the track roller load.

[0077] The transmission module stores measurement data and transmits it to external devices via a wireless communication module or a wired interface, while the power module provides power to modules that require power.

[0078] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A support roller assembly having a vertical first direction (X) and a vertical second direction (Y), characterized in that, include: Two supports (1) are spaced apart along the first direction (X), and the space between the two supports (1) forms an installation space. Each support (1) has a first assembly part (101) and a second assembly part (102). The wheel body (2) is rotatably disposed in the installation space and is connected to the first assembly part (101) of each of the supports (1); A connecting post (3) extends along the second direction (Y) and is connected to the second assembly part (102). Each of the supports (1) is connected to the frame (5) via the connecting post (3). The connecting post (3) is elastic. A strain detection component (4) is disposed on the connecting column (3) for detecting stress changes in the connecting column (3); Along the second direction (Y), the connecting column (3) includes a first connecting part (301), a support part (302), and a second connecting part (303) connected in sequence. The first connecting part (301) is connected to the frame (5), and the second connecting part (303) is connected to the second assembly part (102). The support part (302) is a cylindrical structure, and the strain detection component (4) is disposed on the support part (302). At least a portion of the cross-sectional area of ​​the first connecting part (301) and the second connecting part (303) is larger than the cross-sectional area of ​​the support part (302). The first connecting part (301) has a first limiting surface (30121) for abutting and cooperating with the frame (5), and the second connecting part (303) has a second limiting surface (30321) for abutting and cooperating with the second assembly part (102).

2. The support roller assembly according to claim 1, characterized in that, The strain detection assembly (4) includes a plurality of first strain gauges (401), and at least two first strain gauges (401) are symmetrically arranged on the outer wall of the support (302) along the radial direction of the support (302); And / or; the strain detection assembly (4) includes a plurality of second strain gauges (402), and at least two sets of second strain gauges (402) are symmetrically arranged on the outer wall of the support (302) along the radial direction of the support (302). The number of second strain gauges (402) in each set of second strain gauges (402) is the same, and the second strain gauges (402) in each set of second strain gauges (402) are spaced apart along the axial direction of the support (302).

3. The support roller assembly according to claim 1 or 2, characterized in that, The first connecting part (301) includes a first connecting section (3011) and a first bearing section (3012). The first connecting section (3011) is connected to the support part (302) through the first bearing section (3012). The end face of the first bearing section (3012) away from the support part (302) forms a first limiting surface (30121). The first connecting section (3011) is provided with an external thread. The first connecting section (3011) is adapted to be detachably connected to the threaded hole of the frame (5). The second connecting part (303) includes a second connecting section (3031) and a second bearing section (3032). The second connecting section (3031) is connected to the support part (302) through the second bearing section (3032). The end face of the second bearing section (3032) away from the support part (302) forms a second limiting surface (30321). The second connecting section (3031) is provided with an external thread. The second assembly part (102) is provided with a connecting hole (1021). The second connecting section (3031) passes through the connecting hole (1021) and is detachably connected to the second assembly part (102) through a nut (7).

4. The support roller assembly according to claim 3, characterized in that, The first assembly part (101) and the second assembly part (102) are arranged along the first direction (X). The first assembly part (101) has a through hole (1011) extending along the first direction (X). The second assembly part (102) has an arc groove (1022) communicating with the through hole (1011). The wheel body (2) is rotatably disposed in the installation space via a bearing shaft (8). The bearing shaft (8) passes through the through hole (1011) and enters the arc groove (1022).

5. The support roller assembly according to claim 4, characterized in that, The track roller assembly also has a third direction (Z) perpendicular to the first direction (X) and the second direction (Y) respectively. Along the third direction (Z), the second assembly part (102) has a connecting surface (1023) on both sides of the arc groove (1022). At least one connecting hole (1021) is provided on each of the two connecting surfaces (1023). One of the second assembly parts (102) is connected to the frame (5) through at least two connecting posts (3).

6. The support roller assembly according to claim 1 or 2, characterized in that, The connecting column (3) is made of either 40Cr steel or MnB steel.

7. A tracked vehicle, characterized in that, include: The frame (5) has multiple mounting positions; The support roller assembly according to any one of claims 1 to 6 is provided in a one-to-one correspondence with the mounting position, and the support roller assembly is connected to the mounting position through its own connecting column (3).

8. The tracked vehicle according to claim 7, characterized in that, The frame (5) is provided with a processing module (6), a conveying module and a power module. The strain detection component (4) of the support roller assembly is electrically connected to the conveying module through the processing module (6). The power module is electrically connected to the strain detection component (4) and the processing module (6) respectively.

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