Device and method for measuring balance amount of brake disc

Abstract

The invention discloses a device and method for measuring the balance amount of a brake disc, solves the problem that the unbalance amount of the brake disc cannot be quickly obtained in the prior art, and has the beneficial effects that the operation is simple, and the unbalance amount of the brake disc can be obtained without milling the brake disc. Comprising a supporting assembly, the supporting assembly comprises a pressing disc and a mandrel, the pressing disc is installed in the circumferential direction of the mandrel, and the pressing disc is matched with an inner ring of a brake disc to support the brake disc; the supporting seat is provided with a concave part, and the mandrel can be inserted into the concave part of the supporting seat, so that the supporting assembly can support the brake disc through the supporting seat; the horizontal balance measuring assembly comprises a supporting frame and a plurality of magnetic parts, the supporting frame supports the two sides of the mandrel so as to support the brake disc, the mandrel rotates along with the brake disc along the supporting frame under the action of external force, the magnetic parts can be attracted to the light point of the brake disc, and in the rotating process of the brake disc, the balance amount of the brake disc is determined by replacing the magnetic parts with the proper weight.

Description

Technical Field

[0001] The invention relates to the field of rail transportation, and in particular to a device and method for measuring the balance amount of a brake disc. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] When assembling rail transit vehicles, it is required to detect the static imbalance position of the brake disc. When the brake disc is newly manufactured, the static imbalance stamp is engraved on the outer side. However, after the brake disc is used many times, the actual static imbalance cannot be consistent with that when it was newly manufactured. At this time, it is necessary to know the specific imbalance. The existing static imbalance is mainly to mill the brake disc to ensure its balance, and judge the imbalance by the amount of milling. The above method has the following problems:

[0004] The detection method is relatively complicated. It is necessary to detect the milling first, and then the imbalance can be obtained through the milling amount. The acquisition process is slow and the imbalance data of the brake disc cannot be obtained quickly.

[0005] The structure of the device used to fix the brake disc is not set reasonably, which cannot ensure the stable support of the brake disc. The brake disc is prone to shaking during the milling process, resulting in changes in the milling amount.

[0006] The tooling for fixing the brake disc is inconvenient to assemble. Summary of the invention

[0007] In view of the shortcomings of the prior art, the first object of the present invention is to provide a device for measuring the balance of a brake disc, which is convenient for staff to observe and operate.

[0008] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0009] A device for measuring the balance of a brake disc, comprising:

[0010] The support assembly includes a clamping disc and a mandrel. The clamping disc is mounted circumferentially on the mandrel and cooperates with the inner ring of the brake disc to support the brake disc.

[0011] A support seat, wherein the support seat has a recess, and the core shaft can be inserted into the recess of the support seat, so that the support assembly can support the brake disc through the support seat;

[0012] The balance measurement component includes a support frame and several magnetic parts. The support frame supports both sides of the core shaft and thus supports the brake disc. Under the action of external force, the core shaft rotates along the support frame with the brake disc. The magnetic parts can be adsorbed on the light point of the brake disc. During the rotation of the brake disc, the balance of the brake disc can be determined by replacing the magnetic parts of appropriate weight through the rotation of the brake disc in the direction of the brake disc's focus or light point.

[0013] In a device for measuring the balance of a brake disc as described above, the longitudinal cross-section of the support frame is U-shaped, and support beams are respectively arranged on both sides along the length direction of the support frame. The distance between the support beams on both sides is smaller than the length of the core shaft. The support beams support both sides of the core shaft, and the upper side surface of the support beams is an arc-shaped surface to facilitate the rotation of the core shaft along the support beams.

[0014] In a device for measuring the balance of a brake disc as described above, an overhanging plate is arranged on the top side of the support frame, the overhanging plate is arranged lower than the support beam, the overhanging plate has a set width, and a marker is placed through the overhanging plate. After the spindle stops rotating along the support beam, the stop position of the spindle is marked by the marker, so as to facilitate determining that the stop position of the brake disc is at the same place after the brake disc is pushed multiple times, and observe the stop position of the brake disc after the magnetic part is added.

[0015] In a device for measuring the balance of a brake disc as described above, the support frame includes a base frame, the base frame is provided with a plurality of support feet with adjustable heights, the base frame is provided with a level meter, the levelness of the support frame can be determined by the level meter, and the levelness of the support frame can be adjusted by the support feet according to the display of the level meter.

[0016] In the device for measuring the balance of a brake disc as described above, the mandrel has a tapered section, and the tapered section of the mandrel is used for assembling with the pressure disc, so as to ensure that the pressure disc can be quickly installed on the mandrel while ensuring the coaxiality of the two.

[0017] In a device for measuring the balance of a brake disc as described above, the spindle is provided with a threaded section on one side of the conical section, the spindle threaded section can be connected to a first locking member, after the spindle conical section and the pressure disc are assembled, the first locking member locks the pressure disc, the first locking member cooperates with the spindle threaded section to lock the pressure disc, thereby facilitating stable support of the brake disc.

[0018] In a device for measuring the balance of a brake disc as described above, cylindrical sections are respectively provided at both ends of the core shaft, a reduced diameter section is provided between the cylindrical section and the conical section on one side, the minimum outer diameter of the conical section is larger than the outer diameter of the cylindrical section, the cylindrical section is used to contact with the support beam of the balance measurement component, the cylindrical section and the conical section on one side are distinguished by the reduced diameter section, and the cylindrical section and the threaded section on the other side are distinguished by the other reduced diameter section, which also facilitates the lifting of the core shaft.

[0019] In a device for measuring the balance of a brake disc as described above, the support seat has a set height, the recess is arranged on the upper surface of the support seat, the shape of the inner surface of the recess is adapted to the cylindrical section on one side of the core shaft, and the conical section is exposed at the recess so that the clamping disc can be installed through the conical section of the core shaft.

[0020] A device for measuring the balance of a brake disc as described above, wherein the pressure disc comprises a support column, a limiting end plate is arranged at one end of the support column, the limiting end plate is in contact with the friction surface of the brake disc and is used to limit one end face of the brake disc, the support column comprises a first section and a second section connected in sequence, the first section cooperates with the inner ring of the brake disc, the outer diameter of the second section is smaller than the outer diameter of the first section, and after the pressure disc supports the brake disc, the second locking member is installed at the second section to limit the other end face of the brake disc;

[0021] The first section is a tapered section, which can realize the rapid positioning of the brake disc and facilitate the inner ring of the brake disc to enter the first section and engage with the first section.

[0022] A brake disc balance measurement device as described above, wherein a support disc is arranged in the hollow column along its radial direction, an opening communicating with the limit end plate is arranged at the center of the support disc, and the opening is adapted to the core shaft;

[0023] The support plate is provided with a plurality of weight-reducing holes in the circumferential direction of the opening to reduce the mass of the support plate and facilitate handling.

[0024] In the above-mentioned device for measuring the balance of a brake disc, the second locking member is a locking ring;

[0025] The second section of the support column is circumferentially provided with an external thread structure, and the inner surface of the locking ring is connected to the second section through a thread structure, which is locked with the clamping plate from one side of the brake disc through the locking ring to ensure stable support of the support disc during the rotation of the brake disc.

[0026] In a second aspect, the present invention further provides a brake disc balance measurement method, using the brake disc balance measurement device, comprising the following contents:

[0027] Insert the mandrel into the recess of the support seat;

[0028] A clamping disc is arranged at the core shaft, the inner ring of the brake disc is installed on the clamping disc, and the brake disc is supported by a supporting assembly;

[0029] By balancing the two sides of the support mandrel of the measuring assembly, push the brake disc under external force to make the mandrel rotate along the support frame, mark the stop position of the brake disc, push the brake disc repeatedly to confirm that the stop position is consistent with the previous one;

[0030] When the brake disc is in the stopped position, the bottom is the focus point of the brake disc, and the top is the light point of the brake disc. The magnetic part is adsorbed at the light point position of the brake disc and the brake disc is continuously pushed. The brake disc rotates toward the focus point, which means that the weight of the adsorbed magnetic part is too light and needs to be increased. If the brake disc rotates toward the light point at this time, it means that the weight of the adsorbed magnetic part is too heavy. By repeatedly increasing or decreasing the weight of the magnetic part, the initial starting point and the focus point of the brake disc are finally located on the same horizontal line. It is believed that the brake disc maintains balance, and the weight of the increased magnetic part is the balance amount of the brake disc.

[0031] The beneficial effects of the present invention are as follows:

[0032] 1) In the present invention, the core shaft in the support assembly cooperates with the clamping plate, the clamping plate supports and fixes the brake disc, and the clamping plate and the brake disc are installed through the support seat. After the installation is completed, the core shaft is placed on the balance measurement assembly. Under the action of external force, the core shaft rotates along the support frame of the balance measurement assembly with the brake disc and stops at a certain position of the support beam. The brake disc can be leveled by setting a magnetic part at the light point of the brake disc, and the balance amount of the brake disc can be determined by the weight of the magnetic part. The whole device structure is reasonably arranged, which is convenient for staff to observe and operate, making the balance amount measurement method simple and feasible, and easy to execute, so as to achieve relatively fast acquisition of unbalanced amount data.

[0033] 2) The structure of the balance measurement component in the present invention is reasonably arranged. The balance measurement component includes a support frame, and the support frame is provided with two support beams. The upper side of the support beam, i.e., the part where the support beam contacts the core shaft, is an arc-shaped surface to facilitate the rotation of the core shaft along the support beam; an overhanging plate is arranged below the support beam, and a marker can be placed on the overhanging plate. After the core shaft stops rotating along the support beam, the stop position of the core shaft is marked by the marker, so as to facilitate determining that the stop position of the brake disc is at the same place after the brake disc is pushed multiple times, and observe the stop position of the brake disc after the magnetic part is added.

[0034] 3) The core shaft structure of the present invention is reasonably arranged, and the core shaft is provided with a tapered section for assembly with the pressure plate, so as to ensure that the pressure plate can be quickly installed on the core shaft while ensuring the coaxiality of the two, and ensuring that the pressure plate is stably fixed on the core shaft; the core shaft is also provided with a threaded section, and the first locking member cooperates with the threaded section to stably lock the pressure plate on the core shaft.

[0035] 4) The pressure disc structure of the present invention is reasonably arranged. The pressure disc is provided with a limiting end plate which can fit with the friction surface of the brake disc. The support column of the pressure disc is circumferentially provided with a first section and a second section. The first section cooperates with the inner ring of the brake disc. After the pressure disc supports the brake disc, the second locking member is installed at the second section to limit the other end face of the brake disc. The cooperation between the second locking member and the pressure disc realizes the rapid fixation of the brake disc, fixes the brake disc and the outer ring of the pressure disc, and the brake disc has no circumferential rotation relative to the pressure disc, thereby ensuring that the pressure disc and the core shaft can rotate together during the rotation of the brake disc.

[0036] 5) The support seat structure in the present invention is reasonably arranged, and the support seat has a recess, and the shape and size of the recess are adapted to the cylindrical section on the end side of the core shaft, so that the core shaft can be inserted into the recess. When the core shaft is in a vertical state, it is convenient to install the clamping plate on the core shaft, to install the brake disc on the annular direction of the clamping plate, and to install the first locking member and the second locking member, so that the brake disc can be quickly fixed.

[0037] 6) The present invention provides a method for measuring the balance of a brake disc. First, the support assembly is ensured to stably support the brake disc, and then the brake disc is placed at the balance measurement assembly. Under the action of an external force, the brake disc can be pushed to rotate relative to the support frame, and the light point and the heavy point of the brake disc are determined. By repeatedly increasing or decreasing the weight of the magnetic part, the initial starting point and the heavy point of the brake disc are finally located on the same horizontal line. In other words, the brake disc is considered to be balanced, and the increased weight of the magnetic part is the balance of the brake disc. The measurement method is easy to operate and realizes rapid detection of the balance of the brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0039] Figure 1 It is a schematic diagram of a brake disc balance measurement device after being assembled through a support seat according to one or more embodiments of the present invention.

[0040] Figure 2 It is a schematic diagram of a device for measuring the balance of a brake disc supported by a balance measurement assembly according to one or more embodiments of the present invention.

[0041] Figure 3 It is a side view of a device for measuring a brake disc balance according to one or more embodiments of the present invention supported by a balance measurement assembly.

[0042] Figure 4 It is a schematic diagram of a device for measuring the balance of a brake disc according to one or more embodiments of the present invention rotating through a balance measurement component.

[0043] Figure 5 It is a schematic diagram of a device for measuring the balance amount of a brake disc through a balance measurement component according to one or more embodiments of the present invention.

[0044] Figure 6 It is a schematic diagram of a support seat in a brake disc balance measurement device according to one or more embodiments of the present invention.

[0045] Figure 7 It is a schematic diagram of the installation of a support assembly and a brake disc by a support seat of a brake disc balance measurement device according to one or more embodiments of the present invention.

[0046] Figure 8 It is a schematic diagram of a core shaft in a device for measuring a brake disc balance according to one or more embodiments of the present invention.

[0047] Fig. 9 It is a schematic diagram of a pressure disc of a brake disc balance measurement device according to one or more embodiments of the present invention.

[0048] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0049] Wherein: 1. support seat, 2. brake disc, 3. second locking member, 4. clamping disc, 5. first locking member, 6. spindle, 7. balance measurement assembly, 8. marker;

[0050] 1-1. concave part, 1-2. platform stage, 1-3. protruding plate;

[0051] 4-1. Limiting end plate, 4-2. First section, 4-3. Second section, 4-4. Support plate, 4-5. Weight reduction hole, 4-6. Opening hole;

[0052] 5-1. Nut segment, 5-2. Cover segment;

[0053] 6-1. The first cylindrical segment, 6-2. The second cylindrical segment, 6-3. The third threaded segment, 6-4. The fourth tapered segment, 6-5. The fifth cylindrical segment, 6-6. The sixth cylindrical segment;

[0054] 7-1. Base frame, 7-2. Lateral frame, 7-3. Bubble level, 7-4. Stop plate, 7-5. Support beam, 7-6. Extended plate. DETAILED DESCRIPTION

[0055] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0057] As introduced in the background technology, there is a problem in the prior art that the imbalance of the brake disc cannot be quickly obtained. In order to solve the above technical problem, the present invention proposes a device for measuring the balance of the brake disc.

[0058] Embodiment 1

[0059] In a typical embodiment of the present invention, reference is made to Figure 1 , Figure 2 and Figure 3 As shown, a device for measuring the balance of a brake disc comprises:

[0060] A support assembly, the support assembly includes a clamping disc 4 and a core shaft 6. The clamping disc 4 is mounted circumferentially on the core shaft 6. The clamping disc 4 cooperates with the inner ring of the brake disc 2 to support the brake disc 2.

[0061] A support seat 1, wherein the support seat 1 has a recess, and a core shaft 6 can be inserted into the recess 1-1 of the support seat 1, so that the support assembly can support the brake disc through the support seat;

[0062] The balance measurement component 7 includes a support frame and a plurality of magnetic parts. The support frame supports both sides of the core shaft and thus supports the brake disc. Under the action of external force, the core shaft rotates along the support frame with the brake disc. The magnetic parts can be adsorbed on the light point of the brake disc. During the rotation of the brake disc, the balance of the brake disc can be determined by replacing the magnetic parts with appropriate weight according to the rotation of the brake disc in the direction of the brake disc's focus or light point.

[0063] refer to Figure 5 As shown, the balance measurement assembly 7 includes a frame-type support frame, the longitudinal cross-section of the support frame is U-shaped, and the support frame specifically includes a base frame 7-1, and lateral frames 7-2 are respectively arranged on both sides of the base frame 7-1, and the lateral frames are perpendicular to the base frame. The lateral frames 7-2 are hollowed out to reduce the weight of the support frame, and a support beam 7-5 is arranged on the top of the lateral frame along the length direction of the lateral frame. The contact portion of the support beam 7-5 and the core shaft 6 (the first cylindrical section and the sixth cylindrical section are in contact) is a cylindrical surface, that is, the support beam can directly select a cylindrical support beam, and the support beams on both sides are used to support both sides of the core shaft 6, and stop plates 7-4 are respectively arranged at both ends of each support beam, and the stop plates are arranged higher than the support beam 7-5 to prevent the core shaft 6 from falling during rotation.

[0064] In this embodiment, an overhanging plate 7-6 is provided on the top of at least one lateral frame along its length direction. The length of the overhanging plate is less than or equal to the length of the lateral frame. The overhanging plate 7-6 has a set width. The outer side of the overhanging plate is provided beyond the end face of the core shaft to facilitate the placement of the marker 8 on the overhanging plate. The overhanging plate 7-6 is perpendicular to the lateral frame 7-2 and is connected by bolts. The overhanging plate is provided below the support beam 7-5. The surface of the overhanging plate is a horizontal plane so that the marker can be placed on the surface of the overhanging plate. After the core shaft stops rotating along the support beam, the position where the core shaft stops is marked by the marker.

[0065] In some examples, the marker 8 may be an L-shaped marker block, and a section of the L-shaped marker block may be placed on the overhanging plate; in addition, scale lines may be set in the length direction of the overhanging plate to facilitate accurate determination of the core shaft stop position; of course, in other examples, the marker may also be other shapes, as long as it can be stably erected on the surface of the overhanging plate.

[0066] It is easy to understand that the base frame 7-1 can be hollowed out to reduce the weight of the balance measurement component, the base frame is provided with a plurality of existing support feet with adjustable heights, and the base frame is provided with a spirit level, which can be specifically an existing bubble level 7-3. By observing the bubble level and adjusting the height of the support feet, the horizontality of the base frame can be adjusted; specifically, the base frame 7-1 is provided with a support foot on the other side relative to the spirit level, and protruding blocks are respectively provided on both sides of the lateral frame on the side where the spirit level is located, and the support foot with adjustable height is provided through the protruding block.

[0067] refer to Figure 6 and Figure 7 As shown, the support seat 1 has a set height, which is convenient for the staff to install components such as the core shaft, the clamping plate and the brake disc through the support seat. A recess is set on the upper surface of the support seat, and the cross-sectional shape of the recess can be circular. The shape of the inner surface of the recess 1-1 is adapted to the cylindrical section on one side of the core shaft, and a downward step 1-2 is set on the inner surface of the top of the recess. One side of the conical section of the core shaft is limited by the step 1-2, so that the conical section can be exposed in the recess to install the clamping plate through the conical section of the core shaft; at the same time, the downward step is conducive to the contact between the clamping plate and the top of the support seat after being installed on the core shaft, which is convenient for the installation of the brake disc.

[0068] Specifically, the support seat 1 is a frame-type structural member, and protruding plates 1-3 are respectively arranged at the four corners of the bottom of the support seat. Support feet with adjustable heights are arranged at the protruding plates 1-3 to adjust the horizontality of the support seat. A support section is arranged in the transverse direction of the support seat, and a hollow cylinder is arranged in the support section. The bottom of the cylinder is supported by a vertical rod, and transverse rods are respectively arranged at both ends of the vertical rod. The transverse rods are fixedly connected to the side of the support seat, and the inside of the cylinder is the aforementioned recessed portion. The top of the support seat is flat on the surrounding side of the recessed portion so as to be contactable with one end of the clamping plate.

[0069] refer to Figure 8As shown, from one end to the other end of the mandrel 6, it includes the first cylindrical section 6-1, the second cylindrical section 6-2, the third threaded section 6-3, the fourth tapered section 6-4, the fifth cylindrical section 6-5 and the sixth cylindrical section 6-6 in sequence, the outer diameter of the second cylindrical section is smaller than the outer diameter of the first cylindrical section, the outer diameter of the first cylindrical section is smaller than the outer diameter of the third threaded section to facilitate the first locking member 5 to pass through the first cylindrical section and cooperate with the third threaded section, the third threaded section 6-3 of the mandrel is used to cooperate with the first locking member such as a locking nut, after the locking nut is locked relative to the third threaded section, the inner ring of the clamping plate is fixed to the mandrel so that the clamping plate does not rotate in a circular motion;

[0070] Specifically, the locking nut includes a nut segment 5-1 and a cover segment 5-2. The nut segment 5-1 is cylindrical. An internal thread structure is arranged on the inner surface of the nut segment. The outer diameter of the nut segment is larger than the inner diameter of the opening of the pressure plate. One end of the nut segment can be abutted against the support plate of the pressure plate. The cover segment 5-2 is connected to the nut segment. An arc groove is arranged circumferentially on the cover segment to connect. The arrangement of the arc groove facilitates the rotation of the locking nut and ensures the reliability of the connection with the third thread segment. In addition, the length of the locking nut is larger than the length of the third thread segment.

[0071] In some examples, the length of the first cylindrical segment is greater than the length of the second cylindrical segment;

[0072] From the third threaded section to the fifth cylindrical section, the outer diameter of the fourth conical section gradually increases, and the mating part between the fourth conical section and the inner ring of the pressure plate has a taper, which can ensure that the pressure plate can be quickly installed on the core shaft while ensuring the coaxiality of the core shaft and the pressure plate; the minimum outer diameter of the fourth conical section is larger than the outer diameter of the third threaded section, and the outer diameter of the fifth cylindrical section is smaller than the outer diameter of the sixth cylindrical section.

[0073] It is easy to understand that the length of the fifth cylindrical segment is smaller than the length of the sixth cylindrical segment, the length of the fourth conical segment is larger than the length of the fifth cylindrical segment, and the length of the fourth conical segment is greater than or equal to the length of the pressure plate opening, so that the pressure plate is placed on the outside of the fourth conical segment.

[0074] It should be explained that the diameters of the second cylindrical section and the fifth cylindrical section are reduced in order to facilitate the lifting of the mandrel itself or the mandrel equipped with the brake disc.

[0075] refer to Fig. 9As shown, the clamping disc 4 includes a support column, and a limiting end plate 4-1 is arranged at one end of the support column. The limiting end plate 4-1 is used to limit one end face of the brake disc, so that the outer diameter of the limiting end plate is larger than the inner diameter of the brake disc, the outer diameter of the support column is smaller than the inner diameter of the support disc, and the length of the support column is larger than the thickness of the brake disc. The support column includes a first section 4-2 and a second section 4-3 connected in sequence, the outer diameter of the first section is adapted to the inner diameter of the brake disc, the inner ring of the brake disc is sleeved on the first section of the support column and limited by the limiting end plate, the outer diameter of the second section 4-3 is smaller than the outer diameter of the first section 4-2, and the second section is circumferentially provided with an external thread structure for cooperating with a second locking member such as a locking ring through a threaded structure; a limiting step is arranged between the first section and the second section to limit one end of the locking ring.

[0076] In this embodiment, the first section 4-2 of the support column is tapered in the circumferential direction, that is, the outer diameter of the first section gradually decreases from the limiting end plate to the second section to achieve rapid positioning of the brake disc; the second section is specifically a hollow cylindrical structure.

[0077] It should be noted that a support plate 4-4 is arranged inside the support column, and the support plate is arranged along the radial direction of the support column. An opening 4-6 is arranged in the center of the support plate and the limiting end plate, and the core shaft 6 can be arranged through the opening; in some examples, the support plate can be placed at the connection between the first section and the second section of the support column, and the support plate and the limiting end plate are connected to each other through an annular wall to form an opening, and a plurality of weight-reducing holes 4-5 are arranged on the peripheral side of the opening of the support plate to reduce the weight of the clamping plate, and also to facilitate the observation of the installation status of the clamping plate when it is installed on the core shaft.

[0078] Of course, in other examples, the limiting end plate may be a limiting ear, and the length of the opening in the center of the support disk is greater than the thickness of the support disk to ensure the fit between the opening in the center of the support disk and the tapered section of the core shaft.

[0079] It is easy to understand that the opening of the clamping disk is also conical to ensure effective cooperation between the clamping disk and the first conical section of the core shaft.

[0080] Regarding the locking ring, the locking ring is specifically an annular structural part. The outer diameter of the locking ring is smaller than the outer diameter of the brake disc. The locking ring has a set thickness, and the thickness of the locking ring is less than or equal to the length of the second section of the pressure disc; the locking ring has a set width, and the width of the locking ring is greater than the wall thickness of the second section to ensure the strength of the locking ring. When the locking ring is installed in the second section, the inner side surface of the locking ring is tightly fitted with the end face of the brake disc, and after the locking ring is locked, the brake disc and the outer ring of the pressure disc are fixed, and the brake disc has no circular rotation relative to the pressure disc.

[0081] In the device provided in this embodiment, the core shaft in the support assembly cooperates with the clamping plate, the clamping plate supports and fixes the brake disc, and the clamping plate and the brake disc are installed through the support seat. After the installation is completed, the core shaft is placed on the balance measurement assembly. Under the action of external force, the core shaft rotates along the support frame of the balance measurement assembly with the brake disc and stops at a certain position of the support beam. The brake disc can be leveled by setting a magnetic part at the light point of the brake disc, and the balance amount of the brake disc can be determined by the weight of the magnetic part. The structure of the entire device is reasonably arranged, which is convenient for staff to observe and operate, making the balance amount measurement method simple and feasible, and easy to execute, so as to achieve relatively fast acquisition of imbalance data.

[0082] Embodiment 2

[0083] This embodiment discloses a brake disc balance measurement method, referring to Figure 4 As shown, a brake disc balance measurement device is used, which includes the following contents:

[0084] Insert the fifth cylindrical section and the sixth cylindrical section of the mandrel vertically into the concave portion of the support seat, and limit one end of the fourth conical section by the step of the concave portion;

[0085] A clamping plate is arranged on the core shaft from top to bottom, the clamping plate cooperates with the fourth conical section of the core shaft, and is locked and fixed on the third threaded section of the core shaft by a locking nut;

[0086] Install the inner ring of the brake disc to the first section of the pressure disc to ensure that the limit end plate of the pressure disc is in close contact with the friction surface of the brake disc. Install a locking ring at the second section of the pressure disc to fix the brake disc and the outer ring of the pressure disc through the locking ring without circular rotation, so that the support assembly supports the brake disc;

[0087] Use the existing overhead crane to hoist the mandrel to the balance measurement assembly;

[0088] The support beam of the balance measurement assembly supports both sides of the mandrel, and the brake disc is pushed under the action of external force to make the mandrel rotate along the support frame. The stop position of the brake disc is marked by setting a marker on the extended plate, and the brake disc is pushed repeatedly to confirm that the stop position is consistent with the previous one;

[0089] When the brake disc is in the stopped position, the bottom is the focus point of the brake disc, and the top is the light point of the brake disc. Attach a magnetic part such as a magnet at the light point of the brake disc and continue to push the brake disc. If the brake disc rotates toward the focus point, it is considered that the weight of the adsorbed magnetic part is too light and a heavier magnetic part needs to be replaced. If the brake disc rotates toward the light point at this time, it is considered that the weight of the adsorbed magnetic part is too heavy and a lighter magnetic part needs to be replaced. By repeatedly adjusting magnetic parts of different weights, the initial starting point and the focus point of the brake disc are finally located on the same horizontal line. It is considered that the brake disc remains balanced and the weight of the added magnetic part is the balance amount of the brake disc.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for measuring the balance of a brake disc, characterized in that: include: The support assembly includes a clamping disc and a mandrel. The clamping disc is mounted circumferentially on the mandrel and cooperates with the inner ring of the brake disc to support the brake disc. A support seat, wherein the support seat has a recess, and the core shaft can be inserted into the recess of the support seat, so that the support assembly can support the brake disc through the support seat; The balance measurement component includes a support frame and several magnetic parts. The support frame supports both sides of the core shaft and thus supports the brake disc. Under the action of external force, the core shaft rotates along the support frame with the brake disc. The magnetic parts can be adsorbed on the light point of the brake disc. During the rotation of the brake disc, the balance of the brake disc can be determined by replacing the magnetic parts of appropriate weight through the rotation of the brake disc in the direction of the brake disc's focus or light point.

2. A brake disc balance measurement device according to claim 1, characterized in that: The longitudinal cross-section of the support frame is U-shaped, and support beams are respectively arranged on both sides along the length direction of the support frame. The distance between the support beams on both sides is smaller than the length of the core shaft. The support beams support both sides of the core shaft, and the upper side surface of the support beams is an arc-shaped surface to facilitate the rotation of the core shaft along the support beams.

3. A brake disc balance measurement device according to claim 1, characterized in that: An overhanging plate is arranged on the top side of the support frame, and the overhanging plate is arranged lower than the support beam. The overhanging plate has a set width so that a marker can be placed through the overhanging plate. After the core shaft stops rotating along the support beam, the marker is used to mark the position where the core shaft stops.

4. A brake disc balance measurement device according to claim 1, characterized in that: The support frame comprises a base frame, the base frame is provided with a plurality of support feet with adjustable heights, and the base frame is provided with a level.

5. The device for measuring the balance of a brake disc according to claim 1, characterized in that: The mandrel has a tapered section, and the mandrel tapered section is used for assembling with the pressure disk.

6. A brake disc balance measurement device according to claim 5, characterized in that: The mandrel is provided with a threaded section on one side of the tapered section, and the mandrel threaded section can be connected to the first locking member. After the mandrel tapered section is assembled with the pressure plate, the first locking member locks the pressure plate.

7. A brake disc balance measurement device according to claim 6, characterized in that: The two ends of the core shaft are respectively provided with cylindrical sections, a reduced diameter section is provided between the cylindrical section and the conical section on one side, and the minimum outer diameter of the conical section is greater than the outer diameter of the cylindrical section.

8. The device for measuring the balance of a brake disc according to claim 6, characterized in that: The support seat has a set height, and the recess is arranged on the upper surface of the support seat. The shape of the inner surface of the recess is adapted to the cylindrical section on one side of the core shaft.

9. The device for measuring the balance of a brake disc according to claim 1, characterized in that: The pressure plate includes a support column, a limiting end plate is arranged at one end of the support column, the limiting end plate is in contact with the friction surface of the brake disc, the support column includes a first section and a second section connected in sequence, the first section cooperates with the inner ring of the brake disc, the outer diameter of the second section is smaller than the outer diameter of the first section, after the pressure plate supports the brake disc, the second locking member is installed at the second section to limit the other end face of the brake disc.

10. A brake disc balance measurement device according to claim 9, characterized in that: A support plate is arranged in the hollow column along its radial direction, and an opening connected to the limit end plate is arranged at the center of the support plate, and the opening is adapted to the core shaft; The support plate is provided with a plurality of weight-reducing holes in the circumferential direction of the opening.

11. A brake disc balance measurement device according to claim 9, characterized in that: The second locking member is a locking ring; The second section of the support column is circumferentially provided with an external thread structure, and the inner surface of the locking ring is connected to the second section via the thread structure.

12. A method for measuring brake disc balance, characterized in that: A brake disc balance measurement device according to any one of claims 1 to 11, comprising the following contents: Insert the mandrel into the recess of the support seat; A clamping disc is arranged at the core shaft, the inner ring of the brake disc is installed on the clamping disc, and the brake disc is supported by a supporting assembly; By balancing the two sides of the support mandrel of the measuring assembly, push the brake disc under external force to make the mandrel rotate along the support frame, mark the stop position of the brake disc, push the brake disc repeatedly to confirm that the stop position is consistent with the previous one; When the brake disc is in the stopped position, the bottom is the focus point of the brake disc, and the top is the light point of the brake disc. The magnetic part is adsorbed at the light point position of the brake disc and the brake disc is continuously pushed. The brake disc rotates toward the focus point, which means that the weight of the adsorbed magnetic part is too light and needs to be increased. If the brake disc rotates toward the light point at this time, it means that the weight of the adsorbed magnetic part is too heavy. By repeatedly increasing or decreasing the weight of the magnetic part, the initial starting point and the focus point of the brake disc are finally located on the same horizontal line. It is believed that the brake disc maintains balance, and the weight of the increased magnetic part is the balance amount of the brake disc.

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