Disc spring hydraulic parking anti-slip device
The disc spring hydraulic parking anti-roll device, which combines disc springs and hydraulics, solves the problems of insufficient or excessive braking force of mechanical and hydraulic parking anti-roll devices, and achieves a smooth increase in braking force and safe parking of the vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN ADVANTAGE RAILWAY NEW TECH CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-21
AI Technical Summary
Existing mechanical internal support parking brakes have relatively low braking force, making it easy for the vehicle to roll away. Hydraulic internal support parking brakes have excessive braking force, making it easy for the wheels to jump or climb, leading to vehicle safety issues.
The system employs a disc spring hydraulic anti-rollover device. Through the combination of disc springs and hydraulic cylinders, the vehicle first compresses the disc springs and then compresses the cylinders, ensuring a smooth increase in braking force and preventing wheel jumps and wheel climbs. The braking force level can also be adjusted as needed.
It achieves a smooth increase in braking force, avoids wheel jumping and wheel climbing phenomena, adapts to different levels of braking needs, and ensures that the vehicle stops safely and smoothly.
Smart Images

Figure CN224528677U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of parking anti-rollover equipment, specifically relating to a disc spring hydraulic parking anti-rollover device. Background Technology
[0002] Currently, most automated internal support parking brake systems are of the internal support type, and can be classified into electric, mechanical, and hydraulic types according to their control methods. The braking principle of mechanical internal support parking brakes utilizes the vehicle's kinetic energy to cause the wheels to compress the actuator, forcing the internal compression spring to deform and generate braking force, thus stopping the moving vehicle and preventing it from rolling away. However, because the selected compression spring has relatively low braking force, it cannot achieve the required level, making it easy for the vehicle to run out of the parking space. Furthermore, mechanical internal support parking brakes often fail to release the brakes sufficiently, frequently resulting in wheel rubbing.
[0003] The braking principle of hydraulic internal support parking anti-roll device is to use the vehicle's kinetic energy to make the vehicle's wheels squeeze the actuator, forcing the oil cylinder inside the actuator to generate braking force by hydraulic energy, thereby stopping the moving vehicle and preventing it from rolling away. However, because the braking force generated by the vehicle squeezing the brake rail is too large, it is easy for empty vehicles to jump or climb.
[0004] Therefore, it is necessary to develop a spring-hydraulic anti-runaway device suitable for installation in automated hump yards, which has short braking and release action time, stable and reliable anti-runaway performance, and prevents vehicles from jumping or climbing. Utility Model Content
[0005] The purpose of this invention is to provide a disc spring hydraulic anti-rollover parking device, which solves the problem in the prior art where the hydraulic anti-rollover parking device has excessive braking force on an empty vehicle, resulting in wheel jumping and wheel climbing phenomena.
[0006] The technical solution adopted in this utility model is: a disc spring hydraulic parking anti-roll device, including a support beam, both ends of the support beam are connected to the rails by high-strength bolts, both rails are connected to the base rail by bolts, both ends of the top of the support beam are slidably connected to the linkage mechanism, both linkage mechanisms are connected to the execution unit, and the two execution units are connected to the braking component.
[0007] The feature of this utility model is that, The linkage mechanism includes a support base, one end of which is connected to the execution unit, and the other end of which is connected to the braking assembly. The support base is slidably connected to the support beam.
[0008] Both support seats have oblong holes, and pins are connected to both ends of the top of the support beam, with the pins matching the oblong holes.
[0009] The actuator includes a brake rail, one side of which is connected to the end of the support base, and the other side of the brake rail is located close to the base rail.
[0010] The braking assembly includes a disc spring cylinder, the piston rod end of which is connected to a disc spring, the end of the disc spring away from the disc spring cylinder is connected to the end of one of the support seats, and the end of the disc spring cylinder away from the disc spring is connected to another support seat.
[0011] The disc spring cylinder is connected to two main metal oil pipes, both of which are welded from cold-drawn seamless steel pipes.
[0012] An insulating pad is installed between the support beam and the rail. High-strength bolts are fitted with insulating sleeves, washers, and insulating washers, with the insulating washers placed between the insulating sleeves and washers.
[0013] A rail type adjustment pad is installed between the support beam and the rail, and the rail type adjustment pad is located below the insulating pad.
[0014] A rail height adjustment pad is installed between the support beam and the rail, and the rail height adjustment pad is located above the insulating pad.
[0015] The beneficial effects of this utility model are: This utility model relates to a disc spring hydraulic anti-rollover parking device. When the equipment brakes, the vehicle first compresses the disc spring and then the hydraulic cylinder, ensuring a smooth increase in braking force and preventing wheel jumps and wheel climbs when the vehicle is empty. At the same time, different levels of braking can be applied to the vehicle according to the actual needs of the station. When the braking force needs to be adjusted, the preload of the disc spring in the spring cylinder can be increased or decreased, and the pressure of the hydraulic system can be adjusted. The number of sections of the anti-rollover parking device can also be increased or decreased to meet the requirements of smooth vehicle deceleration and safe parking. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the disc spring hydraulic anti-rollover device of this utility model; Figure 2 This is a cross-sectional view of the connection structure of the support beam in the disc spring hydraulic parking anti-roll device of this utility model.
[0017] In the diagram, 1. Basic rail, 2. Rail clamp, 3. Support beam, 4. Support base, 5. Disc spring, 6. Waist-shaped hole, 7. Disc spring cylinder, 8. Metal main oil pipe, 9. Brake rail, 10. Washer, 11. Insulating washer, 12. Insulating pad, 13. Insulating sleeve, 14. Rail height adjustment pad, 15. Rail type adjustment pad, 16. Pin. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] This utility model provides a disc spring hydraulic parking anti-roll device, such as... Figure 1 As shown, the system includes a support beam 3, with two ends of the support beam 3 connected to rails 2 by high-strength bolts. Each rail 2 is bolted to a base rail 1. Both ends of the top of the support beam 3 are slidably connected to a linkage mechanism. Each linkage mechanism is connected to an execution unit, and a braking assembly is connected between the two execution units. The two rails 2 are designated as inner and outer rails 2, respectively. The inner and outer rails 2 are fixed to the base rail 1 by high-strength long bolts and nuts. After the hump vehicle enters the parking anti-rollover track circuit and comes to a stop, the execution unit drives the linkage mechanism to move. The linkage mechanism compresses the braking assembly to generate braking force. The braking assembly ensures a smooth increase in braking force, preventing the vehicle from jumping or climbing. When the vehicle does not need to decelerate, the braking assembly, through the linkage mechanism, drives the execution unit to move to the release position, allowing the vehicle to pass smoothly.
[0020] Example 1 The disc spring hydraulic parking anti-roll device includes a support beam 3. Both ends of the support beam 3 are connected to the rails 2 by high-strength bolts. Both rails 2 are connected to the basic rails 1 by bolts. Both ends of the top of the support beam 3 are slidably connected to the linkage mechanism. Both linkage mechanisms are connected to the execution unit. The two execution units are connected to the braking component.
[0021] The linkage mechanism support base 4 has one end connected to the execution unit and the other end connected to the braking assembly. The support base 4 is slidably connected to the support beam 3. As a linkage mechanism, the support base 4 connects the execution unit and the braking assembly into one unit, enabling linear motion.
[0022] Example 2 The disc spring hydraulic parking anti-roll device includes a support beam 3. Both ends of the support beam 3 are connected to the rails 2 by high-strength bolts. Both rails 2 are connected to the basic rails 1 by bolts. Both ends of the top of the support beam 3 are slidably connected to the linkage mechanism. Both linkage mechanisms are connected to the execution unit. The two execution units are connected to the braking component.
[0023] The linkage mechanism support base 4 has one end connected to the execution unit and the other end connected to the braking assembly. The support base 4 is slidably connected to the support beam 3.
[0024] Both support bases 4 are provided with oblong holes 6, and pins 16 are connected to both ends of the top of the support beam 3, with the pins 16 matching the oblong holes 6. The support base 4 is slidably connected to the support beam 3 through the pins 16, and the oblong holes 6 limit the range of motion of the support base 4.
[0025] Example 3 The disc spring hydraulic parking anti-roll device includes a support beam 3. Both ends of the support beam 3 are connected to the rails 2 by high-strength bolts. Both rails 2 are connected to the basic rails 1 by bolts. Both ends of the top of the support beam 3 are slidably connected to the linkage mechanism. Both linkage mechanisms are connected to the execution unit. The two execution units are connected to the braking component.
[0026] The linkage mechanism support base 4 has one end connected to the execution unit and the other end connected to the braking assembly. The support base 4 is slidably connected to the support beam 3.
[0027] Both support bases 4 are provided with waist-shaped holes 6, and the top ends of the support beam 3 are connected with pins 16, which are matched with the waist-shaped holes 6.
[0028] The actuator includes a brake rail 9, one side of which is connected to the end of the support seat 4, and the other side of the brake rail 9 is located near the base rail 1. After the hump vehicle enters the parking anti-rollover track circuit and comes to a stop, the wheels press against the brake rail 9, and the brake rail 9 presses against the braking assembly through the support seat 4, thereby generating braking force.
[0029] Example 4 The disc spring hydraulic parking anti-roll device includes a support beam 3. Both ends of the support beam 3 are connected to the rails 2 by high-strength bolts. Both rails 2 are connected to the basic rails 1 by bolts. Both ends of the top of the support beam 3 are slidably connected to the linkage mechanism. Both linkage mechanisms are connected to the execution unit. The two execution units are connected to the braking component.
[0030] The linkage mechanism support base 4 has one end connected to the execution unit and the other end connected to the braking assembly. The support base 4 is slidably connected to the support beam 3.
[0031] Both support bases 4 are provided with waist-shaped holes 6, and the top ends of the support beam 3 are connected with pins 16, which are matched with the waist-shaped holes 6.
[0032] The actuation unit includes a brake rail 9, one side of which is connected to the end of the support base 4, and the other side of the brake rail 9 is located close to the base rail 1.
[0033] The braking assembly includes a disc spring cylinder 7, with a disc spring 5 connected to the piston rod end of the cylinder 7. The end of the disc spring 5 furthest from the cylinder 7 is connected to the end of one of the support seats 4, and the end of the cylinder 7 furthest from the disc spring 5 is connected to the other support seat 4. Two brake rails 9, two support seats 4, and one disc spring cylinder 7 are bolted together to perform linear translational motion. The disc spring cylinder 7 consists of a hydraulic cylinder and a disc spring compression sleeve. The disc spring 5 is housed within the compression sleeve and connected to the piston rod of the hydraulic cylinder. During braking, the vehicle first compresses the disc spring 5 and then the hydraulic cylinder, ensuring a smooth increase in braking force and preventing wheel jumps and wheel climbs when the vehicle is empty.
[0034] Example 5 The disc spring hydraulic parking anti-roll device includes a support beam 3. Both ends of the support beam 3 are connected to the rails 2 by high-strength bolts. Both rails 2 are connected to the basic rails 1 by bolts. Both ends of the top of the support beam 3 are slidably connected to the linkage mechanism. Both linkage mechanisms are connected to the execution unit. The two execution units are connected to the braking component.
[0035] The linkage mechanism support base 4 has one end connected to the execution unit and the other end connected to the braking assembly. The support base 4 is slidably connected to the support beam 3.
[0036] Both support bases 4 are provided with waist-shaped holes 6, and the top ends of the support beam 3 are connected with pins 16, which are matched with the waist-shaped holes 6.
[0037] The actuation unit includes a brake rail 9, one side of which is connected to the end of the support base 4, and the other side of the brake rail 9 is located close to the base rail 1.
[0038] The braking assembly includes a disc spring cylinder 7, with a disc spring 5 connected to the piston rod end of the disc spring cylinder 7. The end of the disc spring 5 away from the disc spring cylinder 7 is connected to the end of one of the support seats 4, and the end of the disc spring cylinder 7 away from the disc spring 5 is connected to the other support seat 4.
[0039] The disc spring cylinder 7 is connected to two main metal oil pipes 8, both of which are welded from cold-drawn seamless steel pipes. One main metal oil pipe 8 is for braking, and the other for releasing. Both are welded from cold-drawn seamless steel pipes and connected by a high-pressure hose. The high-pressure hose serves as a distributor, connecting the main metal oil pipes 8 to the disc spring cylinder 7 to provide hydraulic energy for braking and releasing.
[0040] Example 6 The disc spring hydraulic parking anti-roll device includes a support beam 3. Both ends of the support beam 3 are connected to the rails 2 by high-strength bolts. Both rails 2 are connected to the basic rails 1 by bolts. Both ends of the top of the support beam 3 are slidably connected to the linkage mechanism. Both linkage mechanisms are connected to the execution unit. The two execution units are connected to the braking component.
[0041] The linkage mechanism support base 4 has one end connected to the execution unit and the other end connected to the braking assembly. The support base 4 is slidably connected to the support beam 3.
[0042] Both support bases 4 are provided with waist-shaped holes 6, and the top ends of the support beam 3 are connected with pins 16, which are matched with the waist-shaped holes 6.
[0043] The actuation unit includes a brake rail 9, one side of which is connected to the end of the support base 4, and the other side of the brake rail 9 is located close to the base rail 1.
[0044] The braking assembly includes a disc spring cylinder 7, with a disc spring 5 connected to the piston rod end of the disc spring cylinder 7. The end of the disc spring 5 away from the disc spring cylinder 7 is connected to the end of one of the support seats 4, and the end of the disc spring cylinder 7 away from the disc spring 5 is connected to the other support seat 4.
[0045] The disc spring cylinder 7 is connected to two main metal oil pipes 8, both of which are welded from cold-drawn seamless steel pipes.
[0046] like Figure 2 As shown, an insulating pad 12 is provided between the support beam 3 and the rail 2. A high-strength bolt is fitted with an insulating sleeve 13, a washer 10, and an insulating washer 11, with the insulating washer 11 positioned between the insulating sleeve 13 and the washer 10. To achieve insulation between the two rails, an insulating pad 12, an insulating sleeve 13, and an insulating washer 11 are added between the support beam 3 and the inner and outer rails 2.
[0047] Example 7 The disc spring hydraulic parking anti-roll device includes a support beam 3. Both ends of the support beam 3 are connected to the rails 2 by high-strength bolts. Both rails 2 are connected to the basic rails 1 by bolts. Both ends of the top of the support beam 3 are slidably connected to the linkage mechanism. Both linkage mechanisms are connected to the execution unit. The two execution units are connected to the braking component.
[0048] The linkage mechanism support base 4 has one end connected to the execution unit and the other end connected to the braking assembly. The support base 4 is slidably connected to the support beam 3.
[0049] Both support bases 4 are provided with waist-shaped holes 6, and the top ends of the support beam 3 are connected with pins 16, which are matched with the waist-shaped holes 6.
[0050] The actuation unit includes a brake rail 9, one side of which is connected to the end of the support base 4, and the other side of the brake rail 9 is located close to the base rail 1.
[0051] The braking assembly includes a disc spring cylinder 7, with a disc spring 5 connected to the piston rod end of the disc spring cylinder 7. The end of the disc spring 5 away from the disc spring cylinder 7 is connected to the end of one of the support seats 4, and the end of the disc spring cylinder 7 away from the disc spring 5 is connected to the other support seat 4.
[0052] The disc spring cylinder 7 is connected to two main metal oil pipes 8, both of which are welded from cold-drawn seamless steel pipes.
[0053] An insulating pad 12 is provided between the support beam 3 and the rail 2. A high-strength bolt is fitted with an insulating sleeve 13, a washer 10 and an insulating washer 11. The insulating washer 11 is located between the insulating sleeve 13 and the washer 10.
[0054] A rail type adjustment shim 15 is provided between the support beam 3 and the rail 2, and the rail type adjustment shim 15 is located below the insulating pad 12. In order to accommodate 50 and 60 rail types, rail type adjustment shims 15 are added between the support beam 3 and the inner and outer rails 2. That is, when the basic rail 1 is a 50 type steel rail, the rail type adjustment shim 15 is not needed, but when the basic rail 1 is a 60 type steel rail, the rail type adjustment shim 15 is required.
[0055] A rail height adjustment pad 14 is provided between the support beam 3 and the rail 2, and the rail height adjustment pad 14 is located above the insulating pad 12. In order to accommodate the wear of the base rail 1, a rail height adjustment pad 14 is added between the support beam 3 and the inner and outer rails 2. When the base rail 1 is worn, the rail height adjustment pad 14 is added to meet the equipment height limit requirements.
[0056] The working principle of this novel disc spring hydraulic anti-rollover parking device is as follows: After the hump vehicle enters the parking anti-rollover track circuit and comes to a stop, the control system issues a braking command as needed. Under the action of the hydraulic system, the device starts to work and enters the braking position. The vehicle wheels press against the brake rail 9, which drives the support seat 4 to move. The support seat 4 first compresses the disc spring 5 and then the hydraulic cylinder, ensuring a smooth increase in braking force and preventing the vehicle from jumping or climbing. When the vehicle no longer needs to decelerate, the control system issues a release command, and the piston rod of the disc spring cylinder 7 retracts, driving the brake rail 9 on the support seat 4 to move to the release position, allowing the vehicle to smoothly pass through the parking anti-rollover device.
[0057] This device has three working positions: The first is the initial braking position, where the vehicle has not entered the anti-rollover track circuit, and the piston rod of disc spring cylinder 7 extends to its braking stroke. At this time, the distance between the friction surfaces of the brake rails 9 is 1365 + 40 mm. The second is the working position, where the vehicle enters the anti-rollover track circuit, and the piston rod of disc spring cylinder 7 extends to its braking stroke. At this time, the wheel presses against the brake rail 9, and the brake rail 9 drives the disc spring cylinder 7 connected to the support seat 4. The support seat 4 first compresses the disc spring 5 inside the disc spring cylinder 7. After the disc spring 5 has completed its stroke, it continues to compress the piston rod of the disc spring cylinder 7. At this time, the braking force is increased by hydraulic energy. By compressing the disc spring cylinder 7, the distance between the friction surfaces of the brake rails 9 is 1353 ± 3 mm, meaning the distance between the friction surfaces of the brake rails 9 is equal to the wheel track spacing. The third position is the release working position, where the vehicle passes through the anti-rollover device. At this time, the disc spring cylinder 7 retracts, and the distance between the friction surfaces of the two brake rails 9 is 1325 + 40 mm.
[0058] This utility model relates to a disc spring hydraulic anti-roll parking device, which overcomes the shortcomings of spring-type anti-roll parking devices, such as insufficient braking force and inconsistent braking performance. It also addresses the drawbacks of hydraulic anti-roll parking devices, such as excessive braking force on empty vehicles, which can lead to wheel jumping and wheel climbing. This fills the gap in the market for a disc spring hydraulic anti-roll parking device that provides appropriate braking force, reasonable braking performance, and smooth deceleration without wheel jumping or climbing.
Claims
1. A disc spring hydraulic anti-rollover parking device, characterized in that, The support beam (3) includes a support beam (3), both ends of which are connected to a rail (2) by high-strength bolts. Both rails (2) are connected to a base rail (1) by bolts. Both ends of the top of the support beam (3) are slidably connected to a linkage mechanism. Both linkage mechanisms are connected to an execution unit. A braking component is connected between the two execution units.
2. The disc spring hydraulic anti-rollover device as described in claim 1, characterized in that, The linkage mechanism includes a support base (4), one end of which is connected to the execution unit, and the other end of which is connected to the braking assembly. The support base (4) is slidably connected to the support beam (3).
3. The disc spring hydraulic anti-rollover device as described in claim 2, characterized in that, Both of the support seats (4) are provided with waist-shaped holes (6), and the top ends of the support beam (3) are connected with pins (16), which match the waist-shaped holes (6).
4. The disc spring hydraulic anti-rollover device as described in claim 1, characterized in that, The execution unit includes a brake rail (9), one side of which is connected to the end of the support base (4), and the other side of which is located near the base rail (1).
5. The disc spring hydraulic anti-rollover device as described in claim 1, characterized in that, The braking assembly includes a disc spring cylinder (7), the piston rod end of which is connected to a disc spring (5), one end of the disc spring (5) away from the disc spring cylinder (7) is connected to the end of one of the support seats (4), and the end of the disc spring cylinder (7) away from the disc spring (5) is connected to the other support seat (4).
6. The disc spring hydraulic anti-rollover device as described in claim 5, characterized in that, The disc spring cylinder (7) is connected to two metal main oil pipes (8), both of which are welded from cold-drawn seamless steel pipes.
7. The disc spring hydraulic anti-rollover device as described in claim 1, characterized in that, An insulating pad (12) is provided between the support beam (3) and the rail (2). A high-strength bolt is fitted with an insulating sleeve (13), a washer (10) and an insulating washer (11). The insulating washer (11) is located between the insulating sleeve (13) and the washer (10).
8. The disc spring hydraulic anti-rollover device as described in claim 1, characterized in that, A rail type adjustment pad (15) is provided between the support beam (3) and the rail (2), and the rail type adjustment pad (15) is located below the insulating pad (12).
9. The disc spring hydraulic anti-rollover device as described in claim 1, characterized in that, A rail height adjustment pad (14) is provided between the support beam (3) and the rail (2), and the rail height adjustment pad (14) is located above the insulating pad (12).