Assembling device for brake disc and hub

Abstract

The utility model relates to the field of auxiliary tools, and provides an assembling device for a brake disc and a hub. The assembling device for the brake disc and the hub comprises a centering ring detachably installed on the hub, the centering ring comprises a hub hole positioning ring and a brake disc positioning ring which are concentrically arranged, the hub hole positioning ring is used for being matched with the outer edge of a hub hole in a positioning mode, and the brake disc positioning ring is used for being matched with the inner edge of the brake disc in a positioning mode; the at least two centering pins are detachably mounted in the at least two groups of wheel positioning pin holes and the brake disc pin grooves respectively; wherein the connecting line of the at least two groups of wheel positioning pin holes and the diameter of the wheel are arranged in a staggered manner, or the connecting line of the at least two groups of brake disc pin grooves and the diameter of the brake disc are arranged in a staggered manner. According to the assembly device for the brake disc and the hub, the installation deviation of the brake disc and the hub is reduced; the centering degree of the brake disc and the hub is guaranteed, the problems of brake disc eccentric wear, performance reduction and the like caused by inaccurate centering are solved, the overall quality of the wheel set is improved, and the service life of the wheel set is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tooling, and provides an assembly device for brake discs and wheel hubs. Background Technology

[0002] Currently, disc brakes are widely used in my country's high-speed trains. These brakes are based on the disc braking principle to ensure the safety and stability of train operation. As train speeds continue to increase, the requirements for the static and dynamic balance of wheelsets are also becoming more stringent. To meet these requirements, the allowable residual imbalance of wheelsets needs to be gradually reduced, and the alignment accuracy requirements for wheelsets are also increasing.

[0003] In wheelset assembly, the wheel-mounted brake disc, as the basic braking device, is installed on both sides of the wheel spokes and typically consists of two friction discs, six locating pins, and twelve sets of fasteners. Although the locating pins can achieve initial alignment between the wheel and the friction discs, in actual production, it has been found that even after the locating pins are aligned, a significant play still exists between the wheel and the friction discs, resulting in poor alignment. In this case, the friction discs fail to fully conform to the wheel, increasing the eccentric mass on the wheel. This causes the remaining imbalance of the pressed-fit wheelset assembly to exceed the allowable range, necessitating extensive rework and repair, thus increasing production costs and time. Utility Model Content

[0004] This utility model provides an assembly device for brake discs and wheel hubs, which solves the problem of low efficiency in the alignment and assembly of brake discs and wheels in related technologies.

[0005] This utility model embodiment provides an assembly device for a brake disc and a wheel hub, comprising:

[0006] The center ring is detachably installed on the wheel hub. The center ring includes a wheel hub hole positioning ring and a brake disc positioning ring arranged concentrically. The wheel hub hole positioning ring is used to position and adapt to the outer edge of the wheel hub hole, and the brake disc positioning ring is used to position and adapt to the inner edge of the brake disc.

[0007] At least two centering pins are detachably installed in at least two sets of wheel locating pin holes and brake disc pin slots, respectively;

[0008] Specifically, the line connecting at least two sets of wheel positioning pin holes is misaligned with the diameter of the wheel, or the line connecting at least two sets of brake disc pin grooves is misaligned with the diameter of the brake disc.

[0009] According to one embodiment of the present invention, the centering pin includes:

[0010] Operating terminal;

[0011] An insertion end is connected to one side of the operating end and is used to insert into the wheel positioning pin hole and the brake disc pin groove.

[0012] According to one embodiment of the present invention, the insertion end includes:

[0013] A positioning pin, one end of which is connected to one side of the operating end, is used to insert into the wheel positioning pin hole;

[0014] A pin is connected to the end of the positioning pin opposite to the operating end, and the pin is used to insert into the brake disc pin groove.

[0015] According to one embodiment of the present invention, a plurality of stepped surfaces corresponding to the groove sidewalls of the brake disc pin groove are formed on the pin along the circumferential direction of the pin post.

[0016] According to one embodiment of the present invention, an operating plane corresponding to the groove sidewall of the brake disc pin groove is formed on the operating end along the circumferential direction of the operating end.

[0017] According to one embodiment of the present invention, an anti-slip structure is formed on the operating end along the circumferential direction of the operating end.

[0018] According to one embodiment of the present invention, the line connecting the outer circular surface of the wheel hub positioning ring and the outer circular surface of the brake disc positioning ring, which are located in the same radial direction from the wheel hub positioning ring to the brake disc positioning ring, is gradually expanding.

[0019] According to one embodiment of the present invention, a limiting protrusion is further provided on the outer circular surface of the hub hole positioning ring on the side opposite to the brake disc positioning ring.

[0020] According to one embodiment of the present invention, a plurality of weight-reducing holes are provided on the centering ring located between the hub hole positioning ring and the brake disc positioning ring.

[0021] According to one embodiment of the present invention, an eccentricity detection component is further included. The eccentricity detection component includes a hub hole positioning plate, a mounting base, and a detection element. The hub hole positioning plate is detachably mounted on the hub hole and is adapted to rotate relative to the hub hole. The mounting base is mounted on the hub hole positioning plate, and the detection element is mounted on the mounting base. The detection element is used to detect the eccentricity between the hub and the brake disc.

[0022] According to the embodiments of this utility model, the assembly device for brake discs and wheel hubs effectively reduces installation deviations between the brake disc and wheel hub by using a high-precision fit between the centering ring's hub hole positioning ring and the brake disc positioning ring, respectively, and the tight fit between the centering pin and the wheel positioning pin hole and the brake disc pin groove, along with the staggered positioning pin holes or grooves. Compared to traditional assembly methods, this assembly device significantly improves the alignment accuracy of the brake disc and wheel hub, greatly reducing problems such as brake disc wear and decreased braking performance caused by inaccurate alignment, and improving the overall quality and service life of the wheelset. The design of the centering ring and centering pin makes the assembly process simpler and faster. The detachable installation method of the centering ring facilitates replacement and adjustment, and the precise positioning function of the centering pin reduces the number of trial and error steps during assembly, improving production efficiency and reducing production costs. By adjusting the dimensions of the centering ring and centering pin, this assembly device for brake discs and wheel hubs can be adapted to assemble different models of brake discs and wheel hubs. Whether it's the assembly of wheelsets for high-speed trains or ordinary trains, simply replacing the centering rings and centering pins of the corresponding specifications can meet different production needs, demonstrating strong versatility and adaptability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic structural diagram of the brake disc provided by this utility model.

[0025] Figure 2 This is a schematic structural diagram of the centering ring provided by this utility model.

[0026] Figure 3 This is a schematic structural diagram of the centering pin provided by this utility model.

[0027] Figure 4 This is a schematic structural diagram of the wheel provided by this utility model.

[0028] Figure 5 This is a schematic structural diagram of the wheel, brake disc, and centering ring provided by this utility model.

[0029] Figure 6 This is a schematic cross-sectional view of the wheel, brake disc, and centering ring provided by this utility model.

[0030] Figure 7This is a schematic structural diagram of the eccentricity detection component provided by this utility model.

[0031] Figure label:

[0032] 100. Centering ring; 102. Hub hole locating ring; 104. Brake disc locating ring; 106. Centering pin; 108. Wheel locating pin hole; 110. Brake disc pin groove; 112. Operating end; 114. Insertion end; 116. Locating post; 118. Insert pin post; 120. Stepped surface; 122. Operating plane; 124. Anti-slip structure; 126. Limiting protrusion; 128. Weight reduction hole; 130. Hub hole locating plate; 132. Mounting base; 134. Inspection piece; 136. Hub; 138. Brake disc; 140. Hub hole. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] like Figures 1 to 7 As shown, this utility model embodiment provides an assembly device for a brake disc 138 and a wheel hub 136, comprising:

[0035] The middle ring 100 is detachably mounted on the hub 136. The middle ring 100 includes a hub hole positioning ring 102 and a brake disc positioning ring 104 arranged concentrically. The hub hole positioning ring 102 is used to position and adapt to the outer edge of the hub hole 140, and the brake disc positioning ring 104 is used to position and adapt to the inner edge of the brake disc 138.

[0036] At least two centering pins 106 are detachably installed in at least two sets of wheel positioning pin holes 108 and brake disc pin grooves 110, respectively;

[0037] In this configuration, the line connecting at least two sets of wheel positioning pin holes 108 is misaligned with the diameter of the wheel, or the line connecting at least two sets of brake disc pin grooves 110 is misaligned with the diameter of the brake disc 138.

[0038] According to the assembly device for brake disc 138 and wheel hub 136 provided in this embodiment of the present invention, the high-precision fitting of the hub hole positioning ring 102 and brake disc positioning ring 104 of the centering ring 100 with the outer edge of the hub hole 140 and the inner edge of the brake disc 138, respectively, and the tight fit between the centering pin 106 and the wheel positioning pin hole 108 and the brake disc pin groove 110, plus the staggered positioning pin holes or grooves, effectively reduces the installation deviation between brake disc 138 and wheel hub 136. Compared with the traditional assembly method, the alignment accuracy of brake disc 138 and wheel hub 136 can be greatly improved by using this assembly device, which greatly reduces the problems of brake disc 138 wear and brake performance degradation caused by inaccurate alignment, and improves the overall quality and service life of the wheelset. The design of the centering ring 100 and the centering pin 106 makes the assembly process simpler and faster. The detachable installation method of the center ring 100 facilitates replacement and adjustment, while the precise positioning function of the center pin 106 reduces the number of trial and error steps during assembly, improving production efficiency and reducing production costs. This assembly device for brake discs 138 and wheel hubs 136 can be adapted to assemble different models of brake discs 138 and wheel hubs 136 by adjusting the dimensions of the center ring 100 and center pin 106. Whether assembling wheelsets for high-speed trains or ordinary trains, simply replacing the center ring 100 and center pin 106 with the appropriate specifications can meet different production needs, demonstrating strong versatility and adaptability.

[0039] Please continue reading Figures 1 to 7 In the assembly device for the brake disc 138 and the wheel hub 136 provided in this embodiment of the utility model, the center ring 100 is made of high-strength, high-precision metal material (such as aluminum alloy or alloy steel) to ensure its stability and durability during use. Through precision machining processes (such as CNC milling and grinding), the center ring 100 is machined into a structure with a concentrically arranged wheel hub hole positioning ring 102 and brake disc positioning ring 104. The inner diameter of the wheel hub hole positioning ring 102 is precisely designed according to the outer edge dimension of the wheel hub hole 140, with tolerances controlled within a very small range (such as ±0.05mm), ensuring a tight fit with the outer edge of the wheel hub hole 140 and achieving precise positioning.

[0040] The outer diameter of the brake disc locating ring 104 is customized according to the inner edge size of the brake disc 138, ensuring a high-precision fit. The centering ring 100 and the wheel hub 136 can be installed using snap-fit, threaded connection, or locating pin connection. For example, a locking block that matches the locating groove on the wheel hub 136 can be set on the locating ring 102 of the centering ring 100. During installation, the locking block is aligned with the locating groove, inserted, and rotated at a certain angle to achieve detachable installation of the centering ring 100 on the wheel hub 136, which is convenient, quick, and accurate.

[0041] At least two centering pins 106 are used, typically made of high-strength steel. One end of the centering pin 106 is designed to fit the shape and size of the wheel positioning pin hole 108, while the other end matches the brake disc pin groove 110. During installation, one end of the centering pin 106 is first inserted into the wheel positioning pin hole 108, and then the centering pin 106 is inserted into the pin groove of the brake disc 138, achieving further circumferential positioning of the brake disc 138 and the wheel hub 136. Because the lines connecting at least two sets of wheel positioning pin holes 108 are misaligned with the diameter of the wheel, or the lines connecting at least two sets of brake disc pin grooves 110 are misaligned with the diameter of the brake disc 138, this misalignment design avoids the accumulation of positioning errors caused by overly regular distribution of positioning pin holes or grooves, thus improving centering accuracy. Simultaneously, it ensures effective centering of the brake disc 138 and the wheel hub 136, limiting their relative degrees of freedom.

[0042] When assembling the brake disc 138 and the wheel hub 136, at least two centering pins 106 are first inserted into the corresponding wheel positioning pin holes 108, and then the centering pins 106 are further inserted into the brake disc pin grooves 110. Next, the centering ring 100 is accurately installed on the wheel hub 136, and the positioning is completed by the precise fit between the wheel hub positioning ring 102 and the outer edge of the wheel hub hole 140. In this process, the centering ring 100 and the centering pins 106 cooperate with each other to position the brake disc 138 and the wheel hub 136 from different angles and positions, ensuring that their relative positions are accurate and completing a high-precision assembly.

[0043] According to one embodiment of the present invention, the central pin 106 includes:

[0044] Operation terminal 112;

[0045] Insertion end 114 is connected to one side of operation end 112 and is used to insert into wheel positioning pin hole 108 and brake disc pin groove 110.

[0046] In one embodiment of this utility model, the operating end 112 typically adopts an ergonomic design concept so that the operator can hold and operate it comfortably and conveniently. Its shape can vary depending on the actual use scenario and needs, and common shapes include cylindrical, prismatic, etc.

[0047] The surface of the operating end 112 will undergo special treatment, such as knurling or frosting, to increase friction and prevent hand slippage during operation. The operating end 112 can be made of metal materials (such as aluminum alloy) or high-strength engineering plastics. Aluminum alloy can ensure sufficient strength and durability, while engineering plastics have the advantages of light weight and low cost. The appropriate material can be selected according to specific needs.

[0048] The insertion end 114 is connected to one side of the operating end 112, forming an integral structure with it. Its main function is to accurately insert into the wheel locating pin hole 108 and the brake disc pin groove 110; therefore, its dimensional accuracy requirements are high. The length of the insertion end 114 is determined based on the depth of the wheel locating pin hole 108 and the brake disc pin groove 110, and is generally slightly longer than the sum of their depths to ensure complete insertion and effective positioning. The diameter of the insertion end 114 must precisely match the inner diameter of the wheel locating pin hole 108 and the brake disc pin groove 110, with tolerances controlled within a very small range, such as ±0.05mm.

[0049] The operating end 112 of the centering pin 106 is ergonomically designed for easy grip and force application, allowing for faster alignment and insertion of the insertion end 114 into the wheel locating pin hole 108 and brake disc pin groove 110. The design of the insertion end 114 makes the insertion process smoother, reducing jamming and adjustment time. Compared to traditional alignment methods, using this centering pin 106 for assembling the brake disc 138 and wheel hub 136 significantly reduces the insertion time for each centering pin 106. The high-precision fit between the insertion end 114 and the wheel locating pin hole 108 and brake disc pin groove 110 effectively reduces installation deviations between the brake disc 138 and wheel hub 136. Precise dimensional control and tight fit enable the brake disc 138 to be more accurately aligned with the wheel hub 136 after installation. The alignment error is effectively reduced, which helps to improve the overall quality of the wheelset and reduce problems such as uneven wear of the brake disc 138 and uneven force on the wheel hub 136 caused by inaccurate alignment, thereby improving the service life and safety of the wheelset.

[0050] According to one embodiment of the present invention, the insertion end 114 includes:

[0051] Positioning pin 116, one end of which is connected to one side of the operating end 112, is used to insert into the wheel positioning pin hole 108;

[0052] Pin 118 is connected to the end of positioning pin 116 away from operating end 112 and is used to insert into brake disc pin groove 110.

[0053] In one embodiment of this utility model, the positioning pin 116, as part of the insertion end 114, is mainly responsible for engaging with the wheel positioning pin hole 108 to achieve initial positioning. In its design, the diameter of the positioning pin 116 is determined based on the inner diameter of the wheel positioning pin hole 108, with tolerances controlled within a very small range, typically within ±0.03mm, to ensure a tight and precise fit.

[0054] The connection between the positioning post 116 and the operating end 112 is mostly achieved through welding or integral molding. If welding is used, a suitable welding method, such as argon arc welding, will be selected to ensure welding strength and precision. The weld joint must be ground smooth to avoid defects such as weld beads and porosity that may affect its use. If integral molding is used, the entire structure is directly manufactured through mold injection or machining to ensure the coaxiality of the positioning post 116 and the operating end 112 and reduce assembly errors.

[0055] The pin 118 is connected to the end of the positioning pin 116 opposite to the operating end 112 and is used to insert into the brake disc pin groove 110. The diameter of the pin 118 is adapted to the inner diameter of the brake disc pin groove 110, and the tolerance is also controlled within ±0.03mm to ensure the fitting accuracy. The connection between the pin 118 and the positioning pin 116 also emphasizes precision and strength, and can be achieved by welding or high-precision mechanical connection methods, such as threaded connection followed by welding reinforcement, to ensure that the two will not loosen or separate during use.

[0056] The precise fit between the positioning pin 116 and the wheel positioning pin hole 108, and between the pin 118 and the brake disc pin groove 110, greatly improves the assembly accuracy of the brake disc 138 and the wheel hub 136. This design effectively ensures the positional accuracy of the brake disc 138 when installed on the wheel hub 136, reducing the problem of misalignment between the brake disc 138 and the wheel hub 136 caused by inaccurate positioning. This significantly improves the overall quality of the wheelset, reduces the probability of uneven wear of the brake disc 138 and poor braking performance, and extends the service life of both the brake disc 138 and the wheel hub 136.

[0057] According to one embodiment of the present invention, a plurality of stepped surfaces 120 corresponding to the groove sidewalls of the brake disc pin groove 110 are formed on the pin 118 along the circumferential direction.

[0058] In one embodiment of this utility model, the position, number, and height of the stepped surfaces 120 are precisely planned according to the shape and size of the sidewall of the brake disc pin groove 110. For example, if the sidewall of the brake disc pin groove 110 is complex and has multiple stepped structures of different depths, then the number and height of the stepped surfaces 120 on the pin post 118 correspond accordingly. When the pin post 118 is installed into the brake disc pin groove 110, precise positioning and guidance ensure that the stepped surfaces 120 on the pin post 118 are tightly fitted with the sidewall of the brake disc pin groove 110, achieving precise positioning.

[0059] In addition, by providing a stepped surface on the pin post 118, the dimensional error of the brake disc pin groove 110 can be overcome, ensuring that the pin post 118 can be smoothly inserted into the brake disc pin groove 110.

[0060] The tight fit between the stepped surface 120 on the pin 118 and the side wall of the brake disc pin groove 110 significantly improves the alignment accuracy between the brake disc 138 and the wheel hub 136. Compared to the pin 118 without the stepped surface 120, this design effectively reduces the relative displacement between the brake disc 138 and the wheel hub 136 in the circumferential direction, keeping the alignment error within a very small range. The tight fit also enhances the stability of the connection between the brake disc 138 and the wheel hub 136, enabling better transmission of braking force during braking, reducing brake disc 138 wobbling and wear caused by loose fit, extending the service life of the brake disc 138 and the wheel hub 136, and improving the safety of train operation.

[0061] According to one embodiment of the present invention, along the circumferential direction of the operating end 112, an operating plane 122 corresponding to the groove sidewall of the brake disc pin groove 110 is formed on the operating end 112.

[0062] In one embodiment of this utility model, the operating end 112 is typically made of metal. During its processing, the circumferential surface of the operating end 112 is machined using a milling machine or a grinding machine. The shape and position of the operating plane 122 are determined based on the shape and size of the sidewall of the brake disc pin groove 110.

[0063] The design of the operating plane 122 makes it easier and more efficient for operators to install or remove the centering pin 106. Because the operating plane 122 corresponds to the side wall of the brake disc pin groove 110, operators can more precisely control the insertion and removal direction of the centering pin 106, reducing operational errors. This design also improves operational accuracy, reduces the risk of damage to the centering pin 106 or the brake disc 138 and wheel hub 136 due to improper operation, and improves the quality and efficiency of assembly work.

[0064] According to one embodiment of the present invention, an anti-slip structure 124 is formed on the operating end 112 along the circumferential direction.

[0065] In one embodiment of this utility model, the anti-slip structure 124 can take various forms, such as knurling, setting anti-slip textures, or attaching anti-slip materials. The presence of the anti-slip structure 124 greatly increases the friction between the operator's hand and the operating end 112. During the assembly or disassembly of the centering pin 106, even if the operator's hands are sweaty or in a humid environment, it can effectively prevent hand slippage, improving the safety and stability of operation.

[0066] According to one embodiment of the present invention, the line connecting the outer circular surface of the wheel hub positioning ring 102 and the outer circular surface of the brake disc positioning ring 104, which are located in the same radial direction from the wheel hub positioning ring 102 to the brake disc positioning ring 104, is gradually expanding.

[0067] In one embodiment of this invention, the expanding design makes it easier to align the brake disc 138 with the wheel hub 136 during installation. When the brake disc 138 approaches the centering ring 100, the expanding structure acts as a guide, ensuring the brake disc 138 accurately fits into the brake disc positioning ring 104, reducing installation difficulty and improving installation efficiency. Simultaneously, this design can also compensate for dimensional deviations in the manufacturing process of the brake disc 138 and the wheel hub 136 to a certain extent, ensuring the alignment accuracy of the brake disc 138 and the wheel hub 136, reducing eccentricity problems caused by installation errors, improving the quality of the wheelset assembly, and ensuring the smoothness of train operation.

[0068] According to one embodiment of the present invention, a limiting protrusion 126 is also provided on the outer circular surface of the hub hole positioning ring 102 facing away from the brake disc positioning ring 104.

[0069] In one embodiment of this utility model, the limiting protrusion 126 is generally made of the same material as the centering ring 100 and is set on the outer circumference of the hub hole positioning ring 102 by machining or integral molding. The setting of the limiting protrusion 126 effectively restricts the axial position of the centering ring 100 in the hub hole 140, preventing the centering ring 100 from being over-inserted or improperly installed. This ensures the relative positional accuracy between the centering ring 100 and the hub 136, thereby ensuring the alignment accuracy between the brake disc 138 and the hub 136. During the repeated installation and removal of the centering ring 100, the limiting protrusion 126 can maintain a stable limiting effect, improving the repeatability and reliability of the assembly work, reducing the problem of misalignment between the brake disc 138 and the hub 136 caused by inaccurate installation position of the centering ring 100, and improving the quality and stability of the wheelset assembly.

[0070] According to one embodiment of the present invention, a plurality of weight-reducing holes 128 are provided on the centering ring 100 located between the hub hole positioning ring 102 and the brake disc positioning ring 104.

[0071] In one embodiment of this utility model, during the manufacturing process of the center ring 100, a weight-reducing hole 128 is formed between the hub hole positioning ring 102 and the brake disc positioning ring 104 using drilling or milling processes, based on the structural strength and weight reduction requirements of the center ring 100. The shape of the weight-reducing hole 128 can be circular, square, or other regular shapes.

[0072] The weight-reducing holes 128 effectively reduce the weight of the centering ring 100, lowering material costs. In practical use, the lighter centering ring 100 is easier for operators to handle and install, improving work efficiency. At the same time, the presence of the weight-reducing holes 128 does not significantly reduce the structural strength of the centering ring 100; through proper design, the centering ring 100 can still stably achieve the alignment function between the brake disc 138 and the wheel hub 136.

[0073] According to one embodiment of the present invention, an eccentricity detection component is also included. The eccentricity detection component includes a hub hole positioning plate 130, a mounting base 132, and a detection element 134. The hub hole positioning plate 130 is detachably mounted on the hub hole 140 and is adapted to rotate relative to the hub hole 140. The mounting base 132 is mounted on the hub hole positioning plate 130, and the detection element 134 is mounted on the mounting base 132. The detection element 134 is used to detect the eccentricity between the hub 136 and the brake disc 138.

[0074] In one embodiment of this utility model, the hub hole positioning plate 130 adopts a shape and size adapted to the hub hole 140. The mounting base 132 is fixed to the hub hole positioning plate 130 by welding, bolt connection, or other methods. During installation, the position of the mounting base 132 is ensured to be accurate, and the perpendicularity error between it and the hub hole positioning plate 130 is controlled within ±0.1°. The detection element 134 can be a high-precision displacement sensor or eccentricity measuring instrument, which is installed on the mounting base 132 and precisely calibrated. When using the eccentricity detection component, the hub hole positioning plate 130 is installed on the hub hole 140, and the hub hole positioning plate 130 is rotated. The detection element 134 detects the eccentricity between the hub 136 and the brake disc 138 in real time and transmits the data to the display device so that the operator can understand the eccentricity situation in a timely manner.

[0075] The eccentricity detection component enables real-time monitoring of eccentricity during the assembly of the brake disc 138 and wheel hub 136. Operators can adjust the relative positions of the brake disc 138 and wheel hub 136 based on the detection results, ensuring the assembled wheelset eccentricity meets requirements and reducing wheelset imbalance caused by excessive eccentricity. For example, real-time monitoring by the eccentricity detection component during assembly can control the wheelset eccentricity within acceptable limits, avoiding significant rework and repairs, improving production efficiency, reducing production costs, and ensuring wheelset quality and train operation safety.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An assembly device for a brake disc and a wheel hub, characterized in that, include: The center ring (100) is detachably installed on the wheel hub. The center ring (100) includes a wheel hub hole positioning ring (102) and a brake disc positioning ring (104) arranged concentrically. The wheel hub hole positioning ring (102) is used to be positioned and adapted to the outer edge of the wheel hub hole, and the brake disc positioning ring (104) is used to be positioned and adapted to the inner edge of the brake disc. At least two centering pins (106) are detachably installed in at least two sets of wheel positioning pin holes (108) and brake disc pin grooves (110); Among them, the line connecting at least two sets of wheel positioning pin holes (108) is misaligned with the diameter of the wheel, or the line connecting at least two sets of brake disc pin grooves (110) is misaligned with the diameter of the brake disc.

2. The assembly device for a brake disc and a wheel hub according to claim 1, characterized in that, The centering pin (106) includes: Operation terminal (112); Insertion end (114), which is connected to one side of the operation end (112), is used to insert into the wheel positioning pin hole (108) and the brake disc pin groove (110).

3. The assembly device for a brake disc and a wheel hub according to claim 2, characterized in that The insertion end (114) includes: Positioning pin (116), one end of which is connected to one side of the operating end (112), the positioning pin (116) is used to insert into the wheel positioning pin hole (108). A pin (118) is connected to the end of the positioning pin (116) away from the operating end (112), and the pin (118) is used to insert into the brake disc pin groove (110).

4. The device for assembling a brake disc with a hub according to claim 3, characterized in that, Along the circumference of the pin (118), a plurality of stepped surfaces (120) corresponding to the groove sidewalls of the brake disc pin groove (110) are formed on the pin (118).

5. The device for assembling a brake disc with a hub according to claim 2, characterized in that, Along the circumference of the operating end (112), an operating plane (122) corresponding to the groove sidewall of the brake disc pin groove (110) is formed on the operating end (112).

6. The device for assembling a brake disc with a hub according to claim 2, characterized in that, An anti-slip structure (124) is formed on the operating end (112) along the circumferential direction.

7. The device for assembling a brake disc with a hub according to any one of claims 1 to 6, characterized in that, The line connecting the outer surface of the hub hole positioning ring (102) and the outer surface of the brake disc positioning ring (104) in the same radial direction from the hub hole positioning ring (102) to the brake disc positioning ring (104) is gradually expanding.

8. The assembly apparatus for a brake disc and a wheel hub according to any one of claims 1 to 6, characterized in that, A limiting protrusion (126) is also provided on the side of the outer circular surface of the hub hole positioning ring (102) that is opposite to the brake disc positioning ring (104).

9. The device for assembling a brake disc with a hub according to any one of claims 1 to 6, characterized in that, The centering ring (100) located between the hub hole positioning ring (102) and the brake disc positioning ring (104) has a plurality of weight reduction holes (128).

10. The device for assembling a brake disc with a hub according to any one of claims 1 to 6, characterized in that, It also includes an eccentricity detection component, which includes a hub hole positioning plate (130), a mounting base (132), and a detection element (134). The hub hole positioning plate (130) is detachably mounted on the hub hole and is adapted to rotate relative to the hub hole. The mounting base (132) is mounted on the hub hole positioning plate (130), and the detection element (134) is mounted on the mounting base (132). The detection element (134) is used to detect the eccentricity between the hub and the brake disc.

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