Hanging device, brake clamp unit, bogie and railway vehicle

Abstract

The invention relates to the technical field of rail transit, and provides a hanging device, a brake clamp unit, a bogie and a rail vehicle, the hanging device comprises a hanging bracket, a hanging pin shaft and a mounting assembly, and the hanging bracket is provided with a first mounting hole and a second mounting hole; the mounting assembly comprises a first insulating sleeve, a second insulating sleeve and a baffle plate, each of the first insulating sleeve and the second insulating sleeve comprises a bottom wall, a side wall arranged around the bottom wall and a flange arranged around the side wall, and the bottom wall and the side wall of the first insulating sleeve and / or the second insulating sleeve are / is detachably connected; one end of the hanging pin shaft is mounted in the first mounting hole through a first insulating sleeve, and the other end of the hanging pin shaft is mounted in the second mounting hole through a second insulating sleeve; a baffle is correspondingly installed on the outer side of the bottom wall detachably connected with the side wall so that the hanging pin shaft can be fixedly installed on the hanging frame. Therefore, the problem that the sealing performance and the insulating performance of the brake clamp unit in the prior art are difficult to meet the use requirements is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a suspension device, a brake caliper unit, a bogie, and a rail vehicle. Background Technology

[0002] As a core component of the braking system in high-speed trains and urban rail transit, the reliability and durability of the brake caliper unit directly affect the safety of train operation. In practical applications, the brake caliper unit is exposed to complex environments for extended periods. A large amount of dust and moisture present on the operating track continuously adheres to its surface, especially easily penetrating moving parts such as joints, leading to corrosion. Furthermore, to maintain vehicle cleanliness, the entire vehicle is typically subjected to high-pressure water cleaning after entering the depot. During this process, the high-pressure water impacts the brake caliper unit, leaving moisture residue in concealed areas such as joints, further exacerbating the risk of corrosion. Simultaneously, under certain operating conditions, the brake caliper unit must also meet the insulation requirements between the bogie and wheelsets to ensure the safety of the electrical system. Summary of the Invention

[0003] This invention provides a suspension device, a brake caliper unit, a bogie, and a rail vehicle to solve the problem that the sealing and insulation performance of existing brake caliper units cannot meet the requirements for use.

[0004] This invention provides a hanging device, comprising: The hanger is provided with a first mounting hole and a second mounting hole, the axes of the first mounting hole and the second mounting hole coincide with each other; A hanging pin and a mounting assembly are provided. The mounting assembly includes a first insulating sleeve, a second insulating sleeve, and a baffle. Both the first and second insulating sleeves include a bottom wall, a side wall surrounding the bottom wall, and a flange surrounding the side wall. The bottom wall and the side wall of the first and / or second insulating sleeves are detachably connected. One end of the hanging pin is mounted in the first mounting hole through the first insulating sleeve, and the other end of the hanging pin is mounted in the second mounting hole through the second insulating sleeve. The baffle is installed on the outer side of the bottom wall, which is detachably connected to the side wall, to fix the hanging pin to the hanger. The brake caliper unit is fitted onto the outer surface of the hanging pin and is located between the flange of the first insulating sleeve and the flange of the second insulating sleeve.

[0005] According to a hanging device provided by the present invention, the mounting assembly further includes a first sealing ring, and a first mounting groove is provided on the side wall of the first insulating sleeve and / or the side wall of the second insulating sleeve. The first mounting groove is located at the opening of the corresponding insulating sleeve, and the first sealing ring is located in the first mounting groove. The first sealing ring is in sealing engagement with the hanging pin.

[0006] According to a hanging device provided by the present invention, the baffle covers the corresponding mounting hole, and the projected area of ​​the baffle on the cross-section of the mounting hole is larger than the cross-sectional area of ​​the mounting hole.

[0007] According to a hanging device provided by the present invention, the mounting assembly further includes fasteners, wherein, in the case that one of the first insulating sleeve and the second insulating sleeve has a bottom wall that is detachably connected to the side wall, the fasteners are sequentially inserted through the baffle and the hanger; When both the first insulating sleeve and the second insulating sleeve have a bottom wall that can be detachably connected to the side wall, the fastener is sequentially inserted through the baffle and the hanger, or the fastener is sequentially inserted through the baffle, the bottom wall and the hanging pin.

[0008] According to a hanging device provided by the present invention, the mounting assembly further includes a connector, and the number of fasteners is multiple, each of the fasteners having a through hole at its head, and the connector passing through each of the through holes to fix the multiple fasteners together.

[0009] According to a hanging device provided by the present invention, in the case where one of the first insulating sleeve and the second insulating sleeve has a bottom wall that is detachably connected to the side wall, the bottom wall that is detachably connected to the side wall is located inside the side wall, and a first distance is left between the outer surface of the side wall and the edge of the baffle.

[0010] According to a hanging device provided by the present invention, the mounting assembly further includes a second sealing ring, the hanger is provided with a second mounting groove around the corresponding mounting hole, the second sealing ring is located in the second mounting groove, and the second sealing ring is in sealing cooperation with the baffle.

[0011] According to a hanging device provided by the present invention, in the case where both the first insulating sleeve and the second insulating sleeve have a bottom wall that is detachably connected to the side wall, a second distance is left between the outer surface of the side wall and the edge of the bottom wall, and the baffle matches the bottom wall.

[0012] The present invention also provides a brake caliper unit, comprising: a housing and the above-described suspension device; The housing is provided with a third mounting hole, the hanging pin passes through the third mounting hole, and the housing is sandwiched between the flange of the first insulating sleeve and the flange of the second insulating sleeve.

[0013] According to a brake caliper unit provided by the present invention, the brake caliper unit further includes a bushing, the third mounting hole is a stepped hole, the bushing is sleeved on the hanging pin and located within the large diameter section of the stepped hole, and the bushing is clamped between the stepped surface of the stepped hole and the side wall.

[0014] According to a brake caliper unit provided by the present invention, the brake caliper unit further includes a third sealing ring, the bushing is provided with a third mounting groove, the third sealing ring is located in the third mounting groove, and the third sealing ring is in sealing engagement with the hanging pin.

[0015] The present invention also provides a bogie, including the above-described suspension device; and / or, The aforementioned brake caliper unit.

[0016] The present invention also provides a rail vehicle including the above-described suspension device; and / or, The aforementioned brake caliper unit; and / or, The aforementioned bogie.

[0017] The suspension device, brake caliper unit, bogie, and rail vehicle provided by this invention achieve comprehensive sealing of the suspension pin shaft through the use of a first insulating sleeve and a second insulating sleeve, and also achieve comprehensive sealing of the brake caliper unit through the use of a flange. This effectively solves the problem that the sealing and insulation performance of the brake caliper unit in the prior art is difficult to meet the usage requirements. At the same time, the bottom wall and side wall are detachably connected and equipped with baffles, which facilitates the installation and removal of the suspension pin shaft and improves maintenance efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention 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 invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is one of the structural schematic diagrams of the brake caliper unit provided by the present invention.

[0020] Figure 2 yes Figure 1 A sectional view.

[0021] Figure 3 This is one of the structural schematic diagrams of the hanging device provided by the present invention.

[0022] Figure 4 yes Figure 3 A sectional view.

[0023] Figure 5 This is one of the structural schematic diagrams of the first insulating sleeve or the second insulating sleeve provided by the present invention.

[0024] Figure 6 This is a second schematic diagram of the structure of the first insulating sleeve or the second insulating sleeve provided by the present invention.

[0025] Figure 7 This is the third structural schematic diagram of the first or second insulating sleeve provided by the present invention.

[0026] Figure 8 This is the fourth schematic diagram of the structure of the first insulating sleeve or the second insulating sleeve provided by the present invention.

[0027] Figure 9 This is a schematic diagram of the structure of the bottom wall of the first insulating sleeve or the second insulating sleeve provided by the present invention.

[0028] Figure 10 This is a schematic diagram of the structure of the baffle provided by the present invention.

[0029] Figure 11 This is a schematic diagram of the structure of the hanging pin provided by the present invention.

[0030] Figure 12 This is the second schematic diagram of the brake caliper unit provided by the present invention.

[0031] Figure 13 yes Figure 12 A sectional view.

[0032] Figure 14 This is the second structural schematic diagram of the hanging device provided by the present invention.

[0033] Figure 15 yes Figure 14 A sectional view.

[0034] Figure 16 This is the third schematic diagram of the brake caliper unit provided by the present invention.

[0035] Figure 17 This is the fourth schematic diagram of the brake caliper unit provided by the present invention.

[0036] Figure label: 1. Brake caliper unit; 11. Suspension device; 111. Hanger; 1111. Suspension hole; 112. Suspension pin; 113. Mounting assembly; 1131. First insulating sleeve; 11311. Bottom wall; 11312. Side wall; 11313. Flange; 1132. Second insulating sleeve; 1133. Baffle; 1134. First sealing ring; 1135. Fastener; 1136. Connector; 1137. Second sealing ring; 12. Housing; 13. Bushing; 14. Third sealing ring. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] Firstly, such as Figure 1 and Figure 12 As shown, this embodiment of the invention provides a suspension device 11, which is used to suspend a brake caliper unit 1, including the caliper unit 1, onto a bogie. Wherein, as... Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 13 , Figure 14 and Figure 15 As shown, the hanging device 11 includes: a hanger 111, a hanging pin 112, and a mounting assembly 113.

[0039] The hanger 111 is provided with a first mounting hole and a second mounting hole, the axes of the first mounting hole and the second mounting hole coincide with each other. Specifically, the hanger 111 has a first suspension arm and a second suspension arm arranged opposite to each other. Thus, the first mounting hole is provided on the first suspension arm, the second mounting hole is provided on the second suspension arm, and the first mounting hole and the second mounting hole are coaxially arranged.

[0040] Mounting assembly 113 includes a first insulating sleeve 1131, a second insulating sleeve 1132, and a baffle 1133. Both the first insulating sleeve 1131 and the second insulating sleeve 1132 include a bottom wall 11311, a side wall 11312 surrounding the bottom wall 11311, and a flange 11313 surrounding the side wall 11312, wherein the flange 11313 is circumferentially disposed on the outer surface of the side wall 11312. The bottom wall 11311 of the first insulating sleeve 1131 and / or the second insulating sleeve 1132 is detachably connected to the side wall 11312; that is, the bottom wall 11311 of at least one of the first insulating sleeve 1131 and the second insulating sleeve 1132 is detachably connected to the side wall 11312. For example, the bottom wall 11311 and the side wall 11312 of the first insulating sleeve 1131 are detachably connected, and the bottom wall 11311 and the side wall 11312 of the second insulating sleeve 1132 are detachably connected; or, only the bottom wall 11311 and the side wall 11312 of the first insulating sleeve 1131 are detachably connected, and the bottom wall 11311, the side wall 11312, and the flange 11313 of the second insulating sleeve 1132 are integrally formed; or, only the bottom wall 11311 and the side wall 11312 of the second insulating sleeve 1132 are detachably connected, and the bottom wall 11311, the side wall 11312, and the flange 11313 of the first insulating sleeve 1131 are integrally formed.

[0041] One end of the hanging pin 112 is installed in the first mounting hole through the first insulating sleeve 1131, and the other end of the hanging pin 112 is installed in the second mounting hole through the second insulating sleeve 1132; a baffle 1133 is installed on the outer side of the bottom wall 11311, which is detachably connected to the side wall 11312, to fix the hanging pin 112 to the hanger 111; wherein, the brake caliper unit 1 is fitted on the outer surface of the hanging pin 112, and the brake caliper unit 1 is clamped between the flange 11313 of the first insulating sleeve 1131 and the flange 11313 of the second insulating sleeve 1132.

[0042] It should be noted that the hanging pin 112 can be cylindrical, possessing high strength and rigidity to withstand the weight of the brake caliper unit 1 and the force generated during braking. The hanging pin 112 can be made of stainless steel, thereby enhancing the corrosion resistance of the material matrix. One end of the hanging pin 112 is installed in the first mounting hole via a first insulating sleeve 1131. The first insulating sleeve 1131 is made of high-performance insulating material, possessing excellent insulation performance and wear resistance. The inner diameter of the first insulating sleeve 1131 is adapted to the outer diameter of the hanging pin 112, and the outer diameter is adapted to the inner diameter of the first mounting hole, ensuring that the hanging pin 112 can be securely installed in the first mounting hole. The other end of the hanging pin 112 is installed in the second mounting hole via a second insulating sleeve 1132. The second insulating sleeve 1132 is also made of high-performance insulating material, also possessing excellent insulation performance and wear resistance. The inner hole of the second insulating sleeve 1132 is adapted to the outer diameter of the hanging pin 112, and the outer diameter is adapted to the inner diameter of the second mounting hole, ensuring that the hanging pin 112 can be stably installed in the second mounting hole. At the same time, the first insulating sleeve 1131 and the second insulating sleeve 1132 can achieve electrical insulation between the hanging pin 112 and the hanger 111.

[0043] To facilitate the disassembly and assembly of the hanging pin 112, the bottom wall 11311 of at least one of the first insulating sleeve 1131 and the second insulating sleeve 1132 is detachably connected to the side wall 11312. In addition, a baffle 1133 is installed on the outer side of the bottom wall 11311 of the first insulating sleeve 1131 and the second insulating sleeve 1132 that is detachably connected to the side wall 11312. The function of the baffle 1133 is to fix the hanging pin 112 to the hanger 111, prevent the hanging pin 112 from moving axially during the operation of the rail vehicle, and ensure the installation stability of the brake caliper unit 1.

[0044] Understandably, the brake caliper unit 1 is adapted to be fitted onto the outer surface of the hanging pin 112. The internal diameter of the brake caliper unit 1 matches the outer diameter of the hanging pin 112, ensuring that the brake caliper unit 1 can rotate flexibly on the hanging pin 112 to achieve the braking function. The brake caliper unit 1 is clamped between the flange 11313 of the first insulating sleeve 1131 and the flange 11313 of the second insulating sleeve 1132. The flange 11313 of the first insulating sleeve 1131 and the second insulating sleeve 1132 can serve as a seal and insulation. Specifically, the contact surface between the flange 11313 and the brake caliper unit 1 can serve as a sealing surface to improve the sealing performance and prevent external impurities and moisture from entering the interior of the brake caliper unit 1. In addition, the flange 11313 can isolate the brake caliper unit 1 from the hanger 111, thereby achieving electrical insulation between the suspended brake caliper unit 1 and the hanger 111.

[0045] In practical applications, the first insulating sleeve 1131 and the second insulating sleeve 1132 are used to insulate and seal the hanging pin 112, and the flange 11313 is provided to insulate and seal the brake caliper unit 1. This achieves complete sealing of the hanging pin 112 and effectively solves the problem that the sealing and insulation performance of the brake caliper unit 1 in the prior art is difficult to meet the usage requirements. At the same time, the bottom wall 11311 and the side wall 11312 are detachably connected and a baffle 1133 is provided, which facilitates the installation and removal of the hanging pin 112 and improves maintenance efficiency.

[0046] In optional embodiments, such as Figure 2 , Figure 4 , Figure 13 and Figure 15 As shown, the mounting assembly 113 also includes a first sealing ring 1134. The side wall 11312 of the first insulating sleeve 1131 and / or the side wall 11312 of the second insulating sleeve 1132 are provided with a first mounting groove. That is, at least one of the side wall 11312 of the first insulating sleeve 1131 and the side wall 11312 of the second insulating sleeve 1132 is provided with a first mounting groove. The first mounting groove is located at the opening of the corresponding insulating sleeve. The first sealing ring 1134 is located in the first mounting groove and is in sealing engagement with the hanging pin 112.

[0047] It should be noted that the first sealing ring 1134 can be made of elastic materials such as rubber, possessing good sealing performance and elasticity. The first sealing ring 1134 is located within the first mounting groove, and its inner diameter is in sealing fit with the outer diameter of the hanging pin 112. When the hanging pin 112 is installed into the insulating sleeve, the first sealing ring 1134 is compressed and undergoes elastic deformation, tightly fitting between the hanging pin 112 and the insulating sleeve, forming a reliable sealing barrier, effectively preventing external dust, moisture, and other impurities from entering the brake caliper unit 1.

[0048] In an optional embodiment, to ensure the installation stability of the hanging pin 112, a baffle 1133 covers the corresponding mounting hole, and the projected area of ​​the baffle 1133 on the cross-section of the mounting hole is larger than the cross-sectional area of ​​the mounting hole. The baffle 1133 can be a metal baffle.

[0049] For example, such as Figure 2 and Figure 4 As shown, when the projected area of ​​the baffle 1133 on the cross-section of the mounting hole is greater than the cross-sectional area of ​​the mounting hole, the baffle 1133 can be fixedly connected to the hanger 111.

[0050] like Figure 13 and Figure 15As shown, when the projected area of ​​the baffle 1133 on the cross-section of the mounting hole is greater than the cross-sectional area of ​​the mounting hole, the baffle 1133 can be fixedly connected to the hanging pin 112 or the hanger 111 through the bottom wall 11311.

[0051] In an optional embodiment, the mounting component 113 further includes a fastener 1135, such as Figure 2 and Figure 4 As shown, when one of the first insulating sleeve 1131 and the second insulating sleeve 1132 has a bottom wall 11311 that can be detachably connected to the side wall 11312, the fastener 1135 is sequentially inserted through the baffle 1133 and the hanger 111.

[0052] For example, the bottom wall 11311, side wall 11312, and flange 11313 of the first insulating sleeve 1131 are integrally formed, while the bottom wall 11311 and side wall 11312 of the second insulating sleeve 1132 are detachably connected. In this case, fasteners 1135 are sequentially inserted into the baffle 1133 and the hanger 111 to achieve the fixed installation of the hanging pin 112. Both the baffle 1133 and the hanger 111 can be provided with corresponding fixing holes, and the fasteners 1135 can be screws.

[0053] like Figure 13 and Figure 15 As shown, when both the first insulating sleeve 1131 and the second insulating sleeve 1132 have a bottom wall 11311 that can be detachably connected to the side wall 11312, the fastener 1135 is sequentially inserted through the baffle 1133 and the hanger 111, or the fastener 1135 is sequentially inserted through the baffle 1133, the bottom wall 11311 and the hanging pin 112.

[0054] It should be noted that the bottom wall 11311 of the first insulating sleeve 1131 and the side wall 11312 are detachably connected, and the bottom wall 11311 of the second insulating sleeve 1132 and the side wall 11312 are detachably connected. That is to say, both the first insulating sleeve 1131 and the second insulating sleeve 1132 are provided with baffles 1133. The baffle 1133 corresponding to the first insulating sleeve 1131 can be fixed to the hanging pin 112 or the hanger 111 by fasteners 1135, and the baffle 1133 corresponding to the second insulating sleeve 1132 can also be fixed to the hanging pin 112 or the hanger 111 by fasteners 1135.

[0055] In practical applications, the baffle 1133, the bottom wall 11311, and the hanger 111 are all provided with fixing holes. The fastener 1135 can be a screw. The fastener 1135 is sequentially inserted through the baffle 1133, the bottom wall 11311, and the hanger 111 to achieve the fixed installation of the hanging pin 112. Alternatively, the baffle 1133, the bottom wall 11311, and the hanging pin 112 are all provided with fixing holes. The fastener 1135 can be a screw. The fastener 1135 is sequentially inserted through the baffle 1133, the bottom wall 11311, and the hanging pin 112 to achieve the fixed installation of the hanging pin 112.

[0056] In optional embodiments, such as Figure 3 , Figure 14 and Figure 15 As shown, the mounting assembly 113 also includes a connector 1136 and a plurality of fasteners 1135. Each fastener 1135 has a through hole at its head, and the connector 1136 passes through each through hole to securely connect the plurality of fasteners 1135.

[0057] For example, there can be four fasteners 1135. Each fastener 1135 has a through hole at its head, the diameter of which is designed according to the specifications of the connector 1136 to ensure that the connector 1136 can be easily inserted. The connector 1136 can be made of high-strength steel wire, which has high tensile strength and flexibility. The four fasteners 1135 are arranged at a certain spacing and angle at the location requiring fixation. Then, the connector 1136 is sequentially inserted through the through hole at the head of each fastener 1135, connecting the four fasteners 1135 into a single unit via the connector 1136.

[0058] In practical applications, by adjusting the tightness of the connector 1136, multiple fasteners 1135 can be simultaneously fixed and adjusted, thereby enhancing the overall stability and firmness of the fasteners 1135.

[0059] In optional embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, when one of the first insulating sleeve 1131 and the second insulating sleeve 1132 has a bottom wall 11311 that is detachably connected to the side wall 11312, the bottom wall 11311 that is detachably connected to the side wall 11312 is located inside the side wall 11312, and a first distance is left between the outer side of the side wall 11312 and the edge of the baffle 1133.

[0060] It should be noted that the first insulating sleeve 1131 includes an integrally formed bottom wall 11311, a side wall 11312, and a flange 11313, and the second insulating sleeve 1132 includes an integrally formed side wall 11312 and a flange 11313, as well as a separate bottom wall 11311. The bottom wall 11311, side wall 11312, and flange 11313 of the first insulating sleeve 1131 can all be made of nylon, and the bottom wall 11311, side wall 11312, and flange 11313 of the second insulating sleeve 1132 can also be made of nylon.

[0061] In practical applications, the first insulating sleeve 1131 is first installed into the first mounting hole, and the second insulating sleeve 1132 is installed into the second mounting hole. Then, the brake caliper unit 1 is placed between the first insulating sleeve 1131 and the second insulating sleeve 1132, ensuring that its third mounting hole is coaxial with the first mounting hole and the second mounting hole. Then, the bottom wall 11311 of the second insulating sleeve 1132 is installed into its side wall 11312, and then the baffle 1133 is placed on the outside of the bottom wall 11311 of the second insulating sleeve 1132. Finally, the baffle 1133 is fixed to the hanger 111 with fasteners 1135, and multiple fasteners 1135 are fixed with connectors 1136.

[0062] It should be noted that a first distance is left between the outer side of the side wall 11312 and the edge of the baffle 1133. In this way, after the baffle 1133 is placed over the outer side of the bottom wall 11311 of the second insulating sleeve 1132, it can be ensured that the baffle 1133 can cover the entire second insulating sleeve 1132, ensuring the sealing of the installation of the second insulating sleeve 1132, and facilitating the fixing of the baffle 1133 to the hanger 111 by fasteners 1135.

[0063] In optional embodiments, such as Figure 2 As shown, in order to further improve the sealing performance of the second insulating sleeve 1132, the mounting assembly 113 also includes a second sealing ring 1137. The hanger 111 is provided with a second mounting groove around the corresponding mounting hole. The second sealing ring 1137 is located in the second mounting groove and is sealed to the baffle 1133.

[0064] For example, firstly, the first insulating sleeve 1131 is installed into the first mounting hole, and the second insulating sleeve 1132 is installed into the second mounting hole; then, the brake caliper unit 1 is placed between the first insulating sleeve 1131 and the second insulating sleeve 1132, ensuring that its third mounting hole is coaxial with the first mounting hole and the second mounting hole; then, the bottom wall 11311 of the second insulating sleeve 1132 is installed into its side wall 11312, and then the second sealing ring 1137 is placed in the second mounting groove, and then the baffle 1133 is covered on the outside of the bottom wall 11311 of the second insulating sleeve 1132; finally, the baffle 1133 is fixed to the hanger 111 with fasteners 1135, and multiple fasteners 1135 are fixed with connectors 1136.

[0065] In optional embodiments, such as Figure 11 , Figure 12 , Figure 13 , Figure 14 and Figure 15 As shown, when both the first insulating sleeve 1131 and the second insulating sleeve 1132 have a bottom wall 11311 that can be detachably connected to the side wall 11312, a second distance is left between the outer side surface of the side wall 11312 and the edge of the bottom wall 11311, and the baffle 1133 matches the bottom wall 11311.

[0066] It should be noted that the first insulating sleeve 1131 includes an integrally formed sidewall 11312 and flange 11313, as well as a separate bottom; the second insulating sleeve 1132 includes an integrally formed sidewall 11312 and flange 11313, as well as a separate bottom wall 11311. Specifically, the sidewall 11312 and flange 11313 of the first insulating sleeve 1131 can both be made of nylon, and the bottom wall 11311 of the first insulating sleeve 1131 is made of rubber; similarly, the sidewall 11312 and flange 11313 of the second insulating sleeve 1132 can both be made of nylon, and the bottom wall 11311 of the second insulating sleeve 1132 is made of rubber.

[0067] In practical applications, the first insulating sleeve 1131 is first installed into the first mounting hole, and the second insulating sleeve 1132 is installed into the second mounting hole. Then, the brake caliper unit 1 is placed between the two insulating sleeves, ensuring that its third mounting hole is coaxial with the first and second mounting holes. Next, the bottom wall 11311 of the first insulating sleeve 1131 is placed close to the side wall 11312, and the corresponding baffle 1133 is covered. Then, the baffle 1133 is fixed to the hanging pin 112 with fasteners 1135, and multiple fasteners 1135 are fixed with connectors 1136. Afterwards, in the same manner, the bottom wall 11311 of the second insulating sleeve 1132 is placed close to the side wall 11312, the corresponding baffle 1133 is covered, and it is fixed to the hanging pin 112 with fasteners 1135. Then, multiple fasteners 1135 are fixed with connectors 1136.

[0068] Secondly, such as Figure 1 , Figure 2 , Figure 12 , Figure 13 , Figure 16 and Figure 17 As shown, this embodiment of the invention also provides a brake caliper unit 1, including: a housing 12 and a hanging device; the housing 12 is provided with a third mounting hole, the hanging pin 112 passes through the third mounting hole, and the housing 12 is clamped between the flange 11313 of the first insulating sleeve 1131 and the flange 11313 of the second insulating sleeve 1132.

[0069] For example, firstly, the first insulating sleeve 1131 is installed into the first mounting hole, and the second insulating sleeve 1132 is installed into the second mounting hole; then, the housing 12 is placed between the first insulating sleeve 1131 and the second insulating sleeve 1132, ensuring that its third mounting hole is coaxial with the first mounting hole and the second mounting hole; then, the bottom wall 11311 of the second insulating sleeve 1132 is inserted into its side wall 11312, and then the baffle 1133 is placed on the outside of the bottom wall 11311 of the second insulating sleeve 1132; finally, the baffle 1133 is fixed to the hanger 111 with fasteners 1135, and multiple fasteners 1135 are fixed with connectors 1136.

[0070] Alternatively, first, insert the first insulating sleeve 1131 into the first mounting hole and the second insulating sleeve 1132 into the second mounting hole; then place the housing 12 between the two insulating sleeves, ensuring that its third mounting hole is coaxial with the first and second mounting holes; next, place the bottom wall 11311 of the first insulating sleeve 1131 close to the side wall 11312 and cover it with the corresponding baffle 1133; then use fasteners 1135 to fix the baffle 1133 to the hanging pin 112, and use connectors 1136 to fix multiple fasteners 1135; then, in the same way, place the bottom wall 11311 of the second insulating sleeve 1132 close to the side wall 11312, cover it with the corresponding baffle 1133, fix it to the hanging pin 112 with fasteners 1135, and then use connectors 1136 to fix multiple fasteners 1135.

[0071] In practical applications, the suspension pin 112 is insulated and sealed by the first insulating sleeve 1131 and the second insulating sleeve 1132, and the housing 12 is insulated and sealed by the flange 11313, which effectively solves the problem that the sealing and insulation performance of the brake caliper unit 1 in the prior art is difficult to meet the usage requirements.

[0072] In optional embodiments, such as Figure 2 and Figure 13As shown, the brake caliper unit 1 also includes a bushing 13. The third mounting hole is a stepped hole. The bushing 13 is sleeved on the hanging pin 112 and located within the large diameter section of the stepped hole. The bushing 13 is sandwiched between the stepped surface of the stepped hole and the side wall 11312. The bushing 13 can be a metal bushing 13.

[0073] It should be noted that the bushing 13 is fitted onto the hanging pin 112 and is located within the large-diameter section of the stepped hole of the third mounting hole. The bushing 13 is sandwiched between the stepped surface of the stepped hole and the side wall 11312, serving to buffer, reduce friction, and position the components. This reduces direct friction between the brake caliper unit 1 and the hanging pin 112, extending the service life of the components. At the same time, it effectively prevents external dust, moisture, and other impurities from entering the location of the hanging pin 112 through the gap between the flange 11313 and the housing 12.

[0074] In optional embodiments, such as Figure 2 and Figure 13 As shown, the brake caliper unit 1 also includes a third sealing ring 14. The bushing 13 is provided with a third mounting groove, and the third sealing ring 14 is located in the third mounting groove. The third sealing ring 14 is in sealing engagement with the hanging pin 112.

[0075] It should be noted that the third sealing ring 14 can be made of nitrile rubber, which has excellent oil resistance, low temperature resistance and sealing performance. It is located in the third mounting groove of the bushing 13 and seals with the hanging pin 112 to form a reliable sealing barrier, effectively preventing external impurities from entering the location of the hanging pin 112.

[0076] It is understandable that the bushing 13 has multiple third mounting grooves along its length, so the number of third sealing rings 14 can also be multiple, thereby further improving the sealing effect. In addition, the third mounting grooves can be located at the edge of the bushing 13, which refers to the position near the side wall 11312, that is, near the opening of the insulating sleeve.

[0077] Thirdly, although not shown in the figures, an embodiment of a bogie is also provided. This bogie can be configured with any embodiment or combination thereof of the suspension device 11, or with any embodiment or combination thereof of the aforementioned brake caliper unit 1, depending on application requirements. The suspension device 11 is connected to the bogie via the suspension hole 1111 on the suspension bracket 111, thereby connecting the brake caliper unit 1 to the bogie. This also achieves the technical effects brought about by the aforementioned technical solution.

[0078] Fourthly, similarly, although not shown in the figures, this application also provides an embodiment of a rail vehicle on which any embodiment or combination of the aforementioned suspension device 11, or any embodiment or combination of the aforementioned brake caliper unit 1, or any embodiment or combination of the aforementioned bogie, can be installed according to application needs, thereby achieving the technical effects brought about by the aforementioned technical solutions. It should be noted that the aforementioned rail vehicle can include, but is not limited to, many types such as subway locomotives, high-speed rail locomotives, EMUs, and urban light rail trains.

[0079] It should be understood that the suspension device 11 and brake caliper unit 1 in any of the aforementioned embodiments or combinations can be widely used in the rail transit field, such as in urban EMUs with speeds of 160 to 250 kilometers per hour, and power-centralized freight cars with speeds of 120 kilometers per hour or more. They can also be used in higher-speed urban subway and light rail vehicles. They feature a compact structure, high actuator strength, high braking ratio, and stable performance, which can greatly reduce customers' procurement and operation and maintenance costs, and also reflects the development trend of brake caliper unit 1.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; and these 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 the present invention.

Claims

1. A suspension device applied to a brake caliper unit, characterized in that, include: The hanger is provided with a first mounting hole and a second mounting hole, the axes of the first mounting hole and the second mounting hole coincide with each other; A hanging pin and a mounting assembly are provided. The mounting assembly includes a first insulating sleeve, a second insulating sleeve, and a baffle. Both the first and second insulating sleeves include a bottom wall, a side wall surrounding the bottom wall, and a flange surrounding the side wall. The bottom wall and the side wall of the first and / or second insulating sleeves are detachably connected. One end of the hanging pin is mounted in the first mounting hole through the first insulating sleeve, and the other end of the hanging pin is mounted in the second mounting hole through the second insulating sleeve. The baffle is installed on the outer side of the bottom wall, which is detachably connected to the side wall, to fix the hanging pin to the hanger. The brake caliper unit is fitted onto the outer surface of the hanging pin and is located between the flange of the first insulating sleeve and the flange of the second insulating sleeve.

2. The hanging device according to claim 1, characterized in that, The mounting assembly further includes a first sealing ring. The side wall of the first insulating sleeve and / or the side wall of the second insulating sleeve are provided with a first mounting groove. The first mounting groove is located at the opening of the corresponding insulating sleeve. The first sealing ring is located in the first mounting groove and is in sealing engagement with the hanging pin.

3. The hanging device according to claim 1, characterized in that, The baffle covers the corresponding mounting hole, and the projected area of ​​the baffle on the cross-section of the mounting hole is larger than the cross-sectional area of ​​the mounting hole.

4. The hanging device according to claim 3, characterized in that, The mounting assembly also includes fasteners, which are sequentially inserted through the baffle and the hanger when one of the first insulating sleeve and the second insulating sleeve has a bottom wall that is detachably connected to the side wall; When both the first insulating sleeve and the second insulating sleeve have a bottom wall that can be detachably connected to the side wall, the fastener is sequentially inserted through the baffle and the hanger, or the fastener is sequentially inserted through the baffle, the bottom wall and the hanging pin.

5. The hanging device according to claim 4, characterized in that, The mounting assembly also includes a connector, and there are multiple fasteners, each of which has a through hole at its head. The connector passes through each through hole to securely connect the multiple fasteners.

6. The suspension device according to any one of claims 1 to 5, characterized in that, In the case where one of the first insulating sleeve and the second insulating sleeve has a bottom wall that is detachably connected to the side wall, the bottom wall that is detachably connected to the side wall is located inside the side wall, and a first distance is left between the outer surface of the side wall and the edge of the baffle.

7. The hanging device according to claim 6, characterized in that, The mounting assembly also includes a second sealing ring. The hanger has a second mounting groove around the corresponding mounting hole. The second sealing ring is located in the second mounting groove and is sealed to the baffle.

8. The hanging device according to any one of claims 1 to 5, characterized in that, In the case where both the first insulating sleeve and the second insulating sleeve have a bottom wall that is detachably connected to the side wall, a second distance is left between the outer surface of the side wall and the edge of the bottom wall, and the baffle matches the bottom wall.

9. A brake caliper unit, characterized in that, include: The housing and the hanging device according to any one of claims 1 to 8; The housing is provided with a third mounting hole, the hanging pin passes through the third mounting hole, and the housing is sandwiched between the flange of the first insulating sleeve and the flange of the second insulating sleeve.

10. The brake caliper unit according to claim 9, characterized in that, The brake caliper unit also includes a bushing, the third mounting hole is a stepped hole, the bushing is sleeved on the hanging pin and located within the large diameter section of the stepped hole, and the bushing is clamped between the stepped surface of the stepped hole and the side wall.

11. The brake caliper unit according to claim 10, characterized in that, The brake caliper unit also includes a third sealing ring. The bushing is provided with a third mounting groove, and the third sealing ring is located in the third mounting groove. The third sealing ring is in sealing engagement with the hanging pin.

12. A bogie, characterized in that, include: The hanging device as described in any one of claims 1 to 8; And / or, The brake caliper unit as described in any one of claims 9 to 11.

13. A rail vehicle, characterized in that, include: The hanging device as described in any one of claims 1 to 8; And / or, The brake caliper unit as described in any one of claims 9 to 11; and / or, The bogie as described in claim 12.

Images