Brake mechanism and rail vehicle

Abstract

The present invention relates to the technical field of rail vehicles, and provides a braking mechanism and a rail vehicle. The braking mechanism includes a braking steel cable, a braking chain and a connecting mechanism. One end of the braking steel cable is connected to a bevel gear handbrake device; one end of the braking chain is connected to a bogie braking lever; the connecting mechanism includes a connecting shaft and a mounting bracket. One side of the mounting bracket is connected to a cross beam, and a sliding groove is formed on the mounting bracket. The connecting shaft passes through the sliding groove and is slidably matched with the mounting bracket. The other end of the braking steel cable is connected to the connecting shaft, and the other end of the braking chain is sleeved on the connecting shaft. The braking steel cable is adapted to pull the connecting shaft to slide along the sliding groove and drive the braking chain to provide braking force. Through the above method, the connection between the bevel gear handbrake device and the bogie braking lever can be completed, meeting the requirements of rail vehicle modification. And under the action of the connecting mechanism, the braking steel cable, the braking chain and the connecting shaft can be quickly disassembled and assembled, which is beneficial to improving the efficiency of rail vehicle modification.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a braking mechanism and a rail vehicle. Background Art

[0002] Currently, for most rail vehicles, a worm gear handbrake device is used. The worm gear handbrake device is connected to the brake lever on the bogie through a handbrake pull rod and a brake chain. Of course, there are also some rail vehicles that use a bevel gear handbrake device, and the bevel gear handbrake device is connected to the handbrake caliper through a handbrake steel cable.

[0003] Different rail vehicles have different braking requirements. Currently, when it is necessary to connect the bevel gear handbrake device to the bogie brake lever for braking, it is necessary to adjust both the handbrake and the connection structure. Limited by the complex structure under the vehicle, the modification difficulty is extremely high. Summary of the Invention

[0004] The present invention provides a braking mechanism and a rail vehicle to solve the technical problems of high connection braking difficulty and low efficiency between the bevel gear handbrake device and the bogie brake lever in the prior art.

[0005] The present invention provides a braking mechanism, including: a brake steel cable, one end of which is connected to a bevel gear handbrake device;

[0006] a brake chain, one end of which is connected to the bogie brake lever;

[0007] a connecting mechanism, including a connecting shaft and a mounting bracket. One side of the mounting bracket is connected to a cross beam. A sliding groove is formed on the mounting bracket. The connecting shaft is inserted through the sliding groove and is slidably matched with the mounting bracket. The other end of the brake steel cable is connected to the connecting shaft. The other end of the brake chain is sleeved on the connecting shaft. The brake steel cable is adapted to pull the connecting shaft to slide along the sliding groove and drive the brake chain to provide braking force.

[0008] The present invention also provides a rail vehicle.

[0009] According to the braking mechanism provided by the present invention, the mounting bracket includes a first plate body and a second plate body arranged oppositely. The sliding grooves are formed on both the first plate body and the second plate body. Opposite ends of the connecting shaft are respectively inserted into the sliding grooves on the first plate body and the sliding grooves on the second plate body.

[0010] According to a braking mechanism provided by the present invention, the connecting shaft includes a shaft core and pulleys respectively arranged on opposite sides of the shaft core;

[0011] The opposite ends of the shaft core are respectively inserted through the first plate body and the second plate body, and the opposite ends of the shaft core respectively extend to the outside of the first plate body and the second plate body. A pulley is provided on one side of the first plate body and the second plate body facing away from each other.

[0012] According to a braking mechanism provided by the present invention, the pulley is threadedly connected to the shaft core.

[0013] According to a braking mechanism provided by the present invention, a split pin is also inserted through the connecting shaft on the side of the pulley facing away from the first plate body or the second plate body;

[0014] The split pin is inserted through the shaft core.

[0015] According to a braking mechanism provided by the present invention, one end of the braking cable is provided with a fitting. A clamping groove is formed on the fitting, and a mounting hole communicating with the clamping groove is also formed on the fitting. The connecting shaft is sequentially inserted through the mounting hole and the clamping groove to be connected to the fitting;

[0016] One end of the braking chain is sleeved outside the connecting shaft and clamped in the clamping groove.

[0017] According to a braking mechanism provided by the present invention, the fitting includes a bottom plate, a first limiting plate and a second limiting plate which are connected to the bottom plate and arranged oppositely. The bottom plate, the first limiting plate and the second limiting plate enclose to form the clamping groove;

[0018] The first limiting plate and the second limiting plate are respectively provided with the mounting holes, and the connecting shaft is respectively inserted through the mounting holes on the first limiting plate and the second limiting plate to be connected to the fitting.

[0019] According to a braking mechanism provided by the present invention, a mounting plate is further provided on the braking cable;

[0020] The mounting plate is connected to a braking cable mounting bracket arranged on the cross beam through a threaded connecting piece.

[0021] The present invention also provides a rail vehicle, including: a bevel gear handbrake device;

[0022] A bogie brake lever;

[0023] The above-mentioned braking mechanism, and the braking mechanism is respectively connected to the bevel gear handbrake device and the bogie brake lever.

[0024] According to the rail vehicle provided by the present invention, it further includes a bogie. The bogie includes a cross beam, and a braking cable mounting bracket is arranged on the cross beam. The braking cable is connected to the braking cable mounting bracket.

[0025] The braking mechanism provided by the present invention can complete the connection between the bevel gear handbrake device and the bogie brake lever, meet the requirements of track vehicle modification, and under the action of the connection mechanism, the braking cable, the braking chain and the connecting shaft can be quickly disassembled and assembled, which is beneficial to improving the efficiency of track vehicle modification.

[0026] The track vehicle provided by the present invention includes the above-mentioned braking mechanism, and thus has all the beneficial effects of the braking mechanism, which will not be elaborated here. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of the braking mechanism provided by the present invention in cooperation with the crossbeam;

[0029] Figure 2 It is a partial front view of the braking mechanism provided by the present invention;

[0030] Figure 3 is Figure 1 a schematic structural diagram of the connection mechanism shown;

[0031] Figure 4 is Figure 3 an exploded structural diagram of the connecting shaft shown;

[0032] Figure 5 is Figure 3 a schematic installation structure diagram of the first plate body and the second plate body and the crossbeam shown;

[0033] Figure 6 is Figure 1 a schematic structural diagram of the braking cable shown;

[0034] Reference Signs:

[0035] 10, braking cable; 110, fitting; 1110, bottom plate; 1120, first limiting plate; 1130, second limiting plate; 120, clamping groove; 130, mounting hole; 140, mounting plate;

[0036] 20, braking chain;

[0037] 30. Connecting mechanism; 310. Connecting shaft; 3110. Shaft core; 3120. Pulley; 3130. Split pin; 320. Mounting bracket; 3210. Chute; 3220. First plate body; 3230. Second plate body;

[0038] 40. Cross beam; 410. Brake cable mounting bracket. Detailed implementation manner

[0039] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0040] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0042] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature.

[0043] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] Please refer to Figures 1 to 6 , an embodiment of the present invention provides a braking mechanism, including a braking steel cable 10, a braking chain 20, and a connecting mechanism 30. One end of the braking steel cable 10 is connected to a bevel gear handbrake device; one end of the braking chain 20 is connected to a bogie braking lever; the connecting mechanism 30 includes a connecting shaft 310 and a mounting bracket 320. One side of the mounting bracket 320 is connected to a cross beam 40. A chute 3210 is provided on the mounting bracket 320. The connecting shaft 310 passes through the chute 3210 and is slidably matched with the mounting bracket 320. The other end of the braking steel cable 10 is connected to the connecting shaft 310. The other end of the braking chain 20 is respectively sleeved on the connecting shaft 310. The braking steel cable 10 is adapted to pull the connecting shaft 310 to slide along the chute 3210 and drive the braking chain 20 to provide braking force.

[0045] Please refer to Figure 1 and Figure 2 , by using the connecting mechanism 30 to connect with the braking steel cable 10 and the braking chain 20, the requirement for connecting the bevel gear handbrake device and the bogie braking lever is realized, and thus the requirement for retrofitting of rail vehicles is met. Moreover, the connecting mechanism 30 is detachably connected to both the braking steel cable 10 and the braking chain 20, so it is convenient for disassembly and assembly. While meeting the connection strength, the difficulty of retrofitting rail vehicles is reduced.

[0046] By adopting the setting of the connecting shaft 310, the braking steel cable 10 and the braking chain 20 are in rolling fit with each other, greatly reducing the frictional loss between the braking steel cable 10, the braking chain 20 and the connecting shaft 310, and ensuring the service life of the braking steel cable 10, the braking chain 20 and the connecting shaft 310.

[0047] Please refer to Figure 3 and Figure 4In one embodiment, the mounting frame 320 includes a first plate body 3220 and a second plate body 3230 that are arranged opposite to each other, and a slide groove 3210 is provided on the first plate body 3220 and the second plate body 3230, and the opposite ends of the connecting shaft 310 are respectively inserted into the slide groove 3210 of the first plate body 3220 and the slide groove 3210 on the second plate body 3230.

[0048] The first plate 3220 and the second plate 3230 are arranged at intervals to provide installation space for installing the brake cable 10 and the brake chain 20, and the length extension direction of the chute 3210 on the first plate 3220 and the second plate 3230 is consistent with the axial direction of the brake cable 10 and the brake chain 20. During the braking process, the brake cable 10 applies force to the connecting shaft 310, and the connecting shaft 310 slides along the chute 3210, thereby driving the brake chain 20 to move along the length extension direction of the chute 3210, thereby providing a braking force for the brake lever of the bogie. It should be noted that the distance in the length extension direction of the chute 3210 is equal to the movable stroke of the brake chain 20. When not braking, the brake chain 20 is in a free state, and the connecting shaft 310 is located at one end of the chute 3210 close to the brake chain 20. When in a braking state, the connecting shaft 310 moves to one end of the chute 3210 close to the brake cable 10.

[0049] Please refer to Figure 3 and Figure 5 Specifically, the connecting shaft 310 includes an axis core 3110 and pulleys 3120 disposed on opposite sides of the axis core 3110; the opposite ends of the axis core 3110 are respectively passed through the first plate body 3220 and the second plate body 3230, and the opposite ends of the axis core 3110 extend to the outside of the first plate body 3220 and the second plate body 3230 respectively, and a pulley 3120 is respectively provided on one side of the first plate body 3220 and the second plate body 3230 away from each other.

[0050] The pulley 3120 is used to limit the axial movement of the connecting shaft 310, so that when the connecting shaft 310 slides along the slide groove 3210, the sliding states of the two opposite ends of the connecting shaft 310 remain consistent. That is, the two opposite ends of the connecting shaft 310 slide synchronously along the slide groove 3210 to ensure the stability of the transmission of the braking force.

[0051] In one embodiment, the pulley 3120 is threadedly connected to the shaft core 3110.

[0052] That is, an external thread is provided on the outer side of the shaft core 3110, a groove is formed on the pulley 3120 for mating with the shaft core 3110, and an internal thread adapted to the external thread on the outer side of the shaft core 3110 is provided in the groove of the pulley 3120 to meet the connection between the connecting shaft 310 and the first plate body 3220 or the second plate body 3230. After the pulley 3120 is installed, the connecting shaft 310 can move along the length direction of the sliding groove 3210, but the connecting shaft 310 is restricted by the pulley 3120 and does not move axially by itself.

[0053] In another embodiment, a split pin 3130 is further passed through the connecting shaft 310 on the side of the pulley 3120 away from the first plate body 3220 or the second plate body 3230; the split pin 3130 is passed through the shaft core 3110.

[0054] Hole positions for the split pin 3130 to pass through are respectively formed at opposite ends of the shaft core 3110. After the shaft core 3110 is respectively passed through the first plate body 3220 and the second plate body 3230, a pulley 3120 can be installed on the outer sides of the first plate body 3220 and the second plate body 3230 respectively. Meanwhile, the split pin 3130 is passed through the side of the pulley 3120 away from the first plate body 3220 or the second plate body 3230, thus preventing the pulley 3120 from falling off the shaft core 3110.

[0055] Please refer to Figure 1 and Figure 6 In one embodiment, a fitting 110 is provided at one end of the brake cable 10. A clamping groove 120 is formed on the fitting 110, and a mounting hole 130 communicating with the clamping groove 120 is further formed on the fitting 110. The connecting shaft 310 is sequentially passed through the mounting hole 130 and the clamping groove 120 to be connected with the fitting 110; one end of the brake chain 20 is sleeved on the outside of the connecting shaft 310 and clamped in the clamping groove 120.

[0056] The provision of the clamping groove 120 facilitates the limitation of one end of the brake chain 20, avoiding the situation that when the brake cable 10 applies force to the connecting shaft 310, the brake chain 20 shakes along the connecting shaft 310, resulting in uneven force application.

[0057] Specifically, the fitting 110 includes a bottom plate 1110, a first limiting plate 1120 and a second limiting plate 1130 which are connected to the bottom plate 1110 and arranged oppositely. The bottom plate 1110, the first limiting plate 1120 and the second limiting plate 1130 enclose to form the clamping groove 120; mounting holes 130 are respectively formed on the first limiting plate 1120 and the second limiting plate 1130, and the connecting shaft 310 is respectively passed through the mounting holes 130 on the first limiting plate 1120 and the second limiting plate 1130 to be connected with the fitting 110.

[0058] The first limiting plate 1120 and the second limiting plate 1130 are used to clamp the braking chain 20. In this way, when the braking cable 10 applies a force to the connecting shaft 310, the force can be directly applied to the braking chain 20, improving the force transmission efficiency and making the force transmission basically in a straight line. If the installation position of the braking chain 20 is not limited, the force will be too dispersed and will cause additional pressure on the first plate body 3220 and the second plate body 3230.

[0059] In one embodiment, an installation plate 140 is further provided on the braking cable 10; the installation plate 140 is connected to a braking cable mounting bracket 410 provided on the cross beam 40 through a threaded connector.

[0060] The installation plate 140 can be square and is provided with at least one first through hole. The braking cable mounting bracket 410 is provided with at least one second through hole corresponding to the first through hole. By sequentially passing the threaded connector through the first through hole and the second through hole, the braking cable 10 can be connected to the cross beam 40, making the cross beam 40 a mechanism for supporting and suspending the braking cable 10, improving the installation stability of the braking cable 10.

[0061] The present invention also provides a rail vehicle, including a bevel gear hand brake device, a bogie brake lever, and the above-mentioned braking mechanism. The braking mechanism is respectively connected to the bevel gear hand brake device and the bogie brake lever. With this setting, the braking mechanism can directly connect the bevel gear hand brake device and the bogie brake lever, and the disassembly and assembly between the braking mechanism and the bevel gear hand brake device and the bogie brake lever are convenient, which is beneficial to improving the modification efficiency of the rail vehicle.

[0062] Please refer to Figure 1 , further, the rail vehicle further includes a bogie. The bogie includes a cross beam 40. A braking cable mounting bracket 410 is provided on the cross beam 40, and the braking cable 10 is connected to the braking cable mounting bracket 410.

[0063] Specifically, the braking cable 10 is connected to the braking cable mounting bracket 410 through at least one threaded connector, which is beneficial to the disassembly and assembly of the braking cable.

[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A braking mechanism, characterized in that, Comprising: A brake steel cable, one end of which is connected to the bevel gear hand brake device; A brake chain, one end of which is connected to the bogie brake lever; A connecting mechanism, including a connecting shaft and a mounting bracket. One side of the mounting bracket is connected to the cross beam. A chute is provided on the mounting bracket. The connecting shaft passes through the chute and is slidably matched with the mounting bracket. The other end of the brake steel cable is connected to the connecting shaft. The other end of the brake chain is sleeved on the connecting shaft. The brake steel cable is adapted to pull the connecting shaft to slide along the chute and drive the brake chain to provide braking force; The mounting bracket includes a first plate body and a second plate body arranged oppositely. The chutes are provided on both the first plate body and the second plate body. The opposite ends of the connecting shaft are respectively inserted into the chute on the first plate body and the chute on the second plate body; The connecting shaft includes a shaft core and pulleys respectively arranged on opposite sides of the shaft core. The opposite ends of the shaft core respectively pass through the first plate body and the second plate body. The opposite ends of the shaft core respectively extend to the outside of the first plate body and the second plate body. One pulley is provided on one side of the first plate body and the second plate body facing away from each other.

2. The braking mechanism according to claim 1, characterized in that, The pulley is threadedly connected to the shaft core.

3. The braking mechanism according to claim 1, characterized in that, An open pin is further inserted through the connecting shaft on the side of the pulley facing away from the first plate body or the second plate body.

4. The braking mechanism according to claim 1, characterized in that, A fitting is provided at one end of the brake steel cable. A clamping groove is provided on the fitting. An installation hole communicating with the clamping groove is further provided on the fitting. The connecting shaft sequentially passes through the installation hole and the clamping groove to be connected to the fitting; One end of the brake chain is sleeved outside the connecting shaft and clamped in the clamping groove.

5. The braking mechanism according to claim 4, characterized in that, The fitting includes a bottom plate, a first limiting plate and a second limiting plate which are connected to the bottom plate and arranged oppositely. The bottom plate, the first limiting plate and the second limiting plate enclose to form the clamping groove; The installation holes are respectively provided on the first limiting plate and the second limiting plate. The connecting shaft respectively passes through the installation holes on the first limiting plate and the second limiting plate to be connected to the fitting.

6. The braking mechanism according to claim 1, characterized in that, An installation plate is further provided on the brake steel cable; The installation plate is connected to the brake steel cable mounting bracket provided on the cross beam through a threaded connecting piece.

7. A rail vehicle, characterized in that, Comprising: A bevel gear hand brake device; A bogie brake lever; The braking mechanism according to any one of claims 1-6, wherein the braking mechanism is respectively connected to the bevel gear hand brake device and the bogie brake lever.

8. The rail vehicle according to claim 7, characterized in that, It further includes a bogie, the bogie includes a cross beam, a brake steel cable mounting bracket is provided on the cross beam, and the brake steel cable is connected to the brake steel cable mounting bracket.

Images