Hydraulic lockup retarder

Abstract

A hydraulic locking retarder comprises a pair of brake rails (1), a bottom beam assembly (4), a plurality of pairs of left and right support arm assemblies (5) and (6) capable of storing energy, a hydraulic locking assembly (8) for driving the left and right support arm assemblies (5) and (6) to move, each pair of left and right support arm assemblies (5) and (6) moves in a plane perpendicular to the basic rail, and the brake rails (1) are fixed outside the corresponding left and right support arm assemblies (5) and (6) respectively; in the no-load state, the distance between the brake surfaces (1-2) of the brake rails (1) is greater than the inside distance of the wheels, and the technical key points are that in the loaded state, the energy storage mechanism is extruded and outputs the reaction force and friction force outward. It has the advantages of simple and compact structure, easy installation, convenient adjustment limit, fast work position conversion speed, low energy consumption, less maintenance, convenient use and the like.

Description

Technical Field

[0001] The invention relates to anti-slip safety equipment for parking in railway stations, in particular to a hydraulic locking reducer. Background Art

[0002] A speed reducer (also known as a parking brake or anti-slip device) is a motor-powered, internally supported, double-rail brake system with spring pressure, providing both static and dynamic anti-slip functions. When braking a parked vehicle, the brake rails press against the inner side of the wheels. The wheels, through the rails, compress the springs. The reaction force of the springs creates strong friction between the rails and the wheels, preventing the vehicle from slipping.

[0003] However, the existing technical solutions for reducers have the following problems: 1. The upper limit size is fixed, but the degree of wear of the basic rails in different places varies, resulting in the inability to adjust the limit height according to actual conditions during on-site installation; 2. The switching process between the relief position and the braking position is slow; 3. Electric transmission consumes a lot of energy; 4. Hydraulic transmission has a complex structure and is difficult to maintain. Summary of the Invention

[0004] The purpose of the present invention is to provide a hydraulic locking reducer that fundamentally solves the above problems. It has the advantages of simple and compact structure, easy installation, convenient limit adjustment, fast station conversion speed, low energy consumption, low maintenance, and easy use.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] This hydraulic locking speed reducer includes a pair of brake rails, a bottom beam assembly, several pairs of left and right arm assemblies capable of storing energy, and a hydraulic locking device assembly for driving the left and right arm assemblies. Each pair of left and right arm assemblies operates within a plane perpendicular to the base rails, and the brake rails are fixed to the outside of the corresponding left and right arm assemblies. In the unloaded state, the distance between the braking surfaces of the brake rails is greater than the distance between the inner sides of the wheels. The key technical feature is that in the loaded state, the energy storage mechanism is squeezed and outputs a reaction force outward, generating friction.

[0007] The hydraulic lock assembly includes a cylinder body, an electromagnetic reversing valve connected through a one-way valve, a reciprocating piston rod limited on the cylinder body, a return spring limited on the piston rod by a return spring seat, and the end of the return spring seat limits the joint bearing through the joint bearing seat.

[0008] Preferably, the left arm assembly and the right arm assembly include an arm main plate, and a front mounting groove and a rear mounting groove for horizontal guidance are respectively provided on the inner side and the outer side of the bottom of the arm main plate.

[0009] Preferably, each pair of left arm assembly and right arm assembly stores energy through the spring group assembly, and the spring group assembly and the hydraulic lock assembly are limited between the left arm assembly and the right arm assembly in a manner that the outer side is fixed to the inner side of the arm main board and is hinged to each other, and the reciprocating output end of the hydraulic lock assembly is linked to the spring group assembly.

[0010] Preferably, the spring group assembly includes a spring seat plate whose distal end is integrated with the arm connecting plate and fixed to the arm main plates of the right arm assembly and the left arm assembly, a spring guide sleeve pressed between the spring seat plates for guiding the spring group, and a joint bearing connecting plate for articulating the hydraulic locker assembly.

[0011] Preferably, a guide opening and a braking surface are provided on the brake rail.

[0012] Preferably, the bottom beam assembly is installed between the basic rails through the rail clamp assembly, and the rail clamp assembly includes an outer rail clamp assembly and an inner rail clamp assembly fastened by bolts, and the inner rail clamp assembly is connected to the bottom beam assembly in a manner with an adjustable vertical spacing.

[0013] Preferably, a plurality of mounting holes of different heights are provided on the inner rail clamp assembly; and a positioning hole that matches the mounting hole of the inner rail clamp assembly is provided at the end of the bottom beam assembly.

[0014] Preferably, the bottom beam assembly includes a pair of bottom beam main boards supported by spacer plates, two or more pairs of rotating shafts perpendicular to the bottom beam main boards, and bottom beam rollers limited on the rotating shafts; the bottom beam rollers are linked to the left arm assembly and the right arm assembly through horizontally guided mounting grooves limited in the left arm assembly and the right arm assembly.

[0015] Preferably, an insulating groove is provided in the clamping opening of the outer rail clamping plate or the inner rail clamping plate.

[0016] Beneficial effects of the present invention:

[0017] The positioning shaft pin is inserted into the corresponding positioning hole of the bottom beam mainboard and the mounting hole of the inner rail clamp assembly to achieve the relative height matching between the two, so that the upper limit can adapt to the adjustment of different heights of the basic rail.

[0018] Simple structure, short action time, energy saving and environmental protection.

[0019] For the bottom beam rollers that require frequent lubrication and maintenance, a grease nipple is provided on the side of the bottom beam fixed shaft, which greatly facilitates daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the hydraulic locking reducer.

[0021] Figure 2 This is a cross-sectional view of the hydraulic locking accelerator.

[0022] Figure 3 for Figure 2 Top view of .

[0023] Figure 4 Schematic diagram of the brake rail.

[0024] Figure 5 This is the main view of the outer rail card assembly.

[0025] Figure 6 This is a side view of the outer rail card assembly.

[0026] Figure 7 This is the main view of the inner rail card assembly.

[0027] Figure 8 This is a top view of the inner rail card assembly.

[0028] Figure 9 This is the main view of the bottom beam assembly.

[0029] Figure 10 This is a top view of the bottom beam assembly.

[0030] Figure 11 This is the front view of the left arm assembly.

[0031] Figure 12 This is a top view of the left support arm assembly.

[0032] Figure 13 This is the front view of the right arm assembly.

[0033] Figure 14 This is a top view of the right support arm assembly.

[0034] Figure 15 This is the front view of the spring group assembly.

[0035] Figure 16 The top view of the spring group assembly.

[0036] Figure 17 This is the front view of the hydraulic locking device assembly.

[0037] Figure 18 This is a top view of the hydraulic lock. DETAILED DESCRIPTION

[0038] The following combination Figures 1 to 18 , the contents of the present invention are described in detail through specific embodiments.

[0039]

Hydraulic locking reducer device

[0040] like Figures 1 to 4 As shown, the hydraulic locking reducer consists of a brake rail 1, an outer rail clamp assembly 2, an inner rail clamp assembly 3, a bottom beam assembly 4, a left support arm assembly 5, a right support arm assembly 6, a spring group assembly 7 and a hydraulic locking device assembly 8.

[0041] The brake rail 1 is installed on the cross arms 5-1 and 6-1 of the left support arm assembly 5 and the right support arm assembly 6 using spring washers 5-4 and 6-4, slotted nuts 5-5 and 6-5, cotter pins 5-6 and 6-6 and square head bolts 5-7 and 6-7.

[0042] The outer rail clamp assembly 2 and the inner rail clamp assembly 3 are fastened to the line base rail with bolts 3-1, nuts 3-7 and spring washers 3-6.

[0043] The bottom beam assembly 4 is mounted on the inner rail clamp assembly 3 through the mounting hole 3-5 and the positioning hole 4-7 using the positioning shaft pin 3-8 and the cotter pin 3-9.

[0044] The left arm assembly 5 is installed on the roller 4-4 of the bottom beam 4 with the front mounting groove 5-9 and the rear mounting groove 5-10. The protective cover is installed on the left arm assembly 5 with screws.

[0045] The right arm assembly 6 is mounted on the roller 4 - 4 of the bottom beam 4 using the front mounting groove 6 - 8 and the rear mounting groove 6 - 9 .

[0046] The spring seat plate 7-2 at one end of the spring group assembly 7 is welded to the main board 6-3 of the right arm assembly 6, and the joint bearing connecting plate 7-1 at the other end is connected to the hydraulic lock assembly 8 by a connecting shaft 7-10 and a circlip 7-11.

[0047] The left cylinder cover 8-3 at one end of the hydraulic lock assembly 8 is connected to the hydraulic cylinder connecting plate 5-8 of the left support arm assembly 5 with a hexagon socket screw B1 and a spring washer B2, and the other end is connected to the joint bearing connecting plate 7-1 of the spring group assembly 7 with a connecting shaft 7-10 and a circlip 7-11.

[0048] Several groups of outer rail clamp assemblies 2, inner rail clamp assemblies 3, bottom beam assemblies 4, left arm assemblies 5, right arm assemblies 6, spring group assemblies 7 and hydraulic locker assemblies 8 are arranged along the length direction of the basic rail; a brake rail 1 is installed on each of the left arm assembly 5 and the right arm assembly 6.

[0049] The mounting holes 3-5 on the inner rail clamp assembly 3 and the positioning holes 4-7 on the bottom beam assembly 4 are designed at different heights. By inserting the positioning pins 3-8 into the corresponding positioning holes 4-7, the height of the brake rail can be adjusted to adapt to the height difference of the basic rails.

[0050]

Brake rail

[0051] like Figure 4 As shown, the brake rail 1 is provided with a guide opening 1-1, a braking surface 1-2 and a mounting hole 1-3.

[0052]

External rail card assembly

[0053] like Figure 5 、 Figure 6 As shown, the outer rail clamp assembly 2 is composed of an outer rail clamp plate 2-1 and an insulating groove 2-2; a mounting groove 2-3 and a mounting hole 2-4 are provided on the outer rail clamp plate 2-1.

[0054]

Inner rail card assembly

[0055] like Figure 7 、 Figure 8 As shown, the inner rail clamp assembly 3 is composed of an inner rail clamp plate 3-2, a reinforcement plate 3-3, a spacer plate 3-4, a bolt 3-1, a spring washer 3-6, a nut 3-7, a positioning pin shaft 3-8, a cotter pin 3-9 and an insulating groove 3-10. The inner rail clamp plate 3-2, the reinforcement plate 3-3, the spacer plate 3-4 and the bolt 3-1 are welded into a whole; a mounting hole 3-5 is provided on the inner rail clamp plate 3-2.

[0056]

Bottom beam assembly

[0057] like Figure 9 、 Figure 10 As shown, the bottom beam assembly 4 consists of a bottom beam main board 4-1, a spacer 4-2, a fixed shaft 4-3, a roller 4-4, an intermediate spacer 4-5, and an oiling nozzle 4-6; the spacer 4-2, the fixed shaft 4-3 and the intermediate spacer 4-5 are welded to the bottom beam main board 4-1; the oiling nozzle 4-6 is press-fitted onto the fixed shaft 4-3; the roller 4-4 is sleeved on the fixed shaft 4-3; and a positioning hole 4-7 is provided on the bottom beam main board 4-1.

[0058] [Left arm assembly]

[0059] like Figure 11 、 Figure 12 As shown, the left support arm assembly 5 consists of a cross arm 5-1, a stopper 5-2, a main board 5-3, a spring washer 5-4, a slotted nut 5-5, a cotter pin 5-6, a square head bolt 5-7 and a hydraulic cylinder connecting plate 5-8; the cross arm 5-1, the stopper 5-2 and the hydraulic cylinder connecting plate 5-8 are welded to the main board 5-3; a front mounting groove 5-9 and a rear mounting groove 5-10 are provided on the main board 5-3.

[0060] [Right support arm assembly]

[0061] like Figure 13 、 Figure 14 As shown, the right support arm assembly 6 consists of a cross arm 6-1, a stopper 6-2, a main board 6-3, a spring washer 6-4, a slotted nut 6-5, a cotter pin 6-6 and a square head bolt 6-7; the cross arm 6-1 and the stopper 6-2 are welded to the main board 6-3; a front mounting slot 6-8 and a rear mounting slot 6-9 are provided on the main board 6-3.

[0062]

Spring assembly

[0063] like Figure 15 、 Figure 16As shown, the spring group assembly 7 consists of a joint bearing connecting plate 7-1, a spring seat plate 7-2, a spring guide sleeve 7-3, an inner spring 7-4, an outer spring 7-5, a bolt 7-6, a nut 7-7, a spring washer 7-8, a cotter pin 7-9, a connecting shaft 7-10 and a circlip 7-11;

[0064] The spherical bearing connecting plate 7-1 is welded to one spring seat 7-2, and the other spring seat plate 7-2 is welded to the main plate 6-3 of the right support arm assembly 6. The inner spring 7-4 and outer spring 7-5 are press-fitted between the two spring seat plates 7-2 using bolts 7-6, nuts 7-7, spring washers 7-8, and cotter pins 7-9. The connecting shaft 7-10 is mounted on the spherical bearing connecting plate 7-1. Spring guide sleeves 7-3 are welded to the two spring seat plates 7-2.

[0065]

Hydraulic locking device assembly

[0066] like Figure 17 、 Figure 18 As shown, the hydraulic locker assembly consists of a one-way valve 8-1, a return spring seat 8-2, a left cylinder head 8-3, a piston rod 8-4, a half-ring key 8-5, a key cap 8-6, a cylinder body 8-7, a piston 8-8, a piston guide ring 8-9, a right cylinder head 8-10, a sealing gasket 8-11, a filler hole plug 8-12, a return spring 8-13, a spherical bearing seat 8-14, a hexagon socket screw B1, a spring washer B2, an electromagnetic reversing valve B3, a retaining ring for a Yx-shaped hole B4, an elastic retaining ring for a shaft B5, an O-ring B6, a spherical bearing B7 and a sealing ring for a Yx-shaped shaft B8.

[0067] Working Principle

[0068] When the hydraulic lock assembly 8 is controlled in the relief position, the two brake rails 1 are restricted by the wheels, the distance between the braking surfaces 1-2 is equal to the distance between the inner sides of the wheels, and is in the relief position, and has no braking effect on the vehicle.

[0069] When the hydraulic lock assembly 8 is controlled in the braking position, the piston rod 8-4, under the action of the return spring 8-13, causes the left arm assembly 5 and the right arm assembly 6 to drive the two brake rails 1 to move outward. The distance between the braking surfaces 1-2 of the two brake rails 1 is greater than the distance between the inner sides of the wheels. When the wheel enters the parking device from the guide opening 1-1 of the brake rail 1, the brake rail 1 squeezes the inner spring 7-4 and the outer spring 7-5 to generate braking force, which slows down the vehicle.

[0070]

Other Notes

[0071] In this embodiment, all welded parts such as the outer rail clamp, inner rail clamp, bottom beam, left support arm, right support arm, etc. can also be cast parts after comprehensive evaluation of environmental protection, raw materials, labor costs, etc.

[0072] [Description of Reference Numerals]

[0073] 1 brake rail, 1-1 guide port, 1-2 brake surface, 1-3 mounting hole;

[0074] 2 outer rail clamp assembly, 2-1 outer rail clamp plate, 2-2 insulation slot, 2-3 mounting slot, 2-4 mounting hole;

[0075] 3 Inner rail clamp assembly, 3-1 Bolt, 3-2 Inner rail clamp plate, 3-3 Reinforcement plate, 3-4 Spacer plate, 3-5 Mounting hole, 3-6 Spring washer, 3-7 Nut, 3-8 Positioning pin, 3-9 Split pin, 3-10 Insulation slot;

[0076] 4 Bottom beam assembly, 4-1 bottom beam main plate, 4-2 spacer plate, 4-3 fixed shaft, 4-4 roller, 4-5 middle spacer plate, 4-6 grease nipple, 4-7 positioning hole;

[0077] 5 Left support arm assembly, 5-1 Cross arm, 5-2 Stopper, 5-3 Main plate, 5-4 Spring washer, 5-5 Nut, 5-6 Cotter pin, 5-7 Bolt, 5-8 Hydraulic cylinder connecting plate, 5-9 Front mounting slot, 5-10 Rear mounting slot;

[0078] 6 Right support arm assembly, 6-1 Crossarm, 6-2 Stopper, 6-3 Main plate, 6-4 Spring washer, 6-5 Slotted nut, 6-6 Cotter pin, 6-7 Square head bolt, 6-8 Front mounting slot, 6-9 Rear mounting slot;

[0079] 7 Spring assembly, 7-1 Spherical bearing connecting plate, 7-2 Spring seat plate, 7-3 Spring guide sleeve, 7-4 Inner spring, 7-5 Outer spring, 7-6 Bolt, 7-7 Nut, 7-8 Spring washer, 7-9 Split pin, 7-10 Connecting shaft, 7-11 Circlip;

[0080] 8 Hydraulic lock assembly, 8-1 Check valve, 8-2 Return spring seat, 8-3 Left cylinder head, 8-4 Piston rod, 8-5 Half-ring key, 8-6 Key cap, 8-7 Cylinder body, 8-8 Piston, 8-9 Piston guide ring, 8-10 Right cylinder head, 8-11 Sealing gasket, 8-12 Oil filler plug, 8-13 Return spring, 8-14 Spherical bearing seat;

[0081] B1 Hexagon socket screw, B2 Spring washer, B3 Solenoid reversing valve, B4 Circlip for Yx-shaped hole, B5 Circlip for shaft, B6 O-ring, B7 Spherical plain bearing, B8 Sealing ring for Yx-shaped shaft.

Claims

1. A hydraulic locking speed reducer, comprising a pair of brake rails (1), a bottom beam assembly (4-), a plurality of pairs of left arm assemblies (5) and right arm assemblies (6) capable of storing energy, and a hydraulic locking device assembly (8) for driving the left arm assembly (5) and the right arm assembly (6) to move, wherein each pair of left arm assemblies (5) and right arm assemblies (6) moves in a movement plane perpendicular to the base rails, and the brake rails (1) are respectively fixed to the outside of the corresponding left arm assembly (5) and right arm assembly (6); in a no-load state, the distance between the braking surfaces (1-2) of the brake rails (1) is greater than the distance between the inner sides of the wheels, and is characterized in that: Under load, the energy storage mechanism is squeezed and outputs a reaction force outward, thereby generating friction. The hydraulic lock assembly (8) includes a cylinder (8-7), an electromagnetic reversing valve (B3) connected via a one-way valve (8-1), a reciprocating piston rod (8-4) limited on the cylinder (8-7), a return spring (8-13) limited on the piston rod (8-4) via a return spring seat (8-2), and the end of the return spring seat (8-2) is limited to the joint bearing via a joint bearing seat (8-14). The left support arm assembly (5) and the right support arm assembly (6) include support arm main plates (5-3, 6-3), and the inner and outer sides of the bottoms of the support arm main plates (5-3, 6-3) are respectively provided with front mounting grooves (5-9, 6-8) and rear mounting grooves (5-10, 6-9) for horizontal guidance; Each pair of left arm assemblies (5) and right arm assemblies (6) stores energy through a spring assembly (7); the spring assembly (7) and the hydraulic lock assembly (8) are positioned between the left arm assembly (5) and the right arm assembly (6) in a manner such that the outer sides are fixed to the inner sides of the arm main plates (5-3, 6-3) and are hinged to each other; the reciprocating output end of the hydraulic lock assembly (8) is linked to the spring assembly (7); The spring group assembly (7) comprises a spring seat plate (7-2) whose distal end is integrated with the support arm connecting plate and fixed to the support arm main plates (6-3, 5-3) of the right support arm assembly (6) and the left support arm assembly (5), a spring guide sleeve (7-3) pressed between the spring seat plates (7-2) for guiding the spring group, and a joint bearing connecting plate (7-1) for articulating the hydraulic lock assembly (8); A guide opening (1-1) and a braking surface (1-2) are provided on the brake rail (1); The bottom beam assembly (4-) is installed between the basic rails through the rail clamp assembly, the rail clamp assembly includes an outer rail clamp assembly (2) and an inner rail clamp assembly (3) fastened by bolts, and the inner rail clamp assembly (3) is connected to the bottom beam assembly (4-) in a manner in which the vertical spacing is adjustable; A plurality of mounting holes (3-5) of different heights are provided on the inner rail clamp assembly (3); a positioning hole (4-7) matching the mounting hole (3-5) of the inner rail clamp assembly (3) is provided at the end of the bottom beam assembly (4); The bottom beam assembly (4-) comprises a pair of bottom beam main plates (4-1) supported by a spacer plate (4-2), two or more pairs of rotation shafts perpendicular to the bottom beam main plates (4-1), and bottom beam rollers (4-4) limited on the rotation shafts; the bottom beam rollers (4-4) are linked to the left support arm assembly (5) and the right support arm assembly (6) via horizontally guided mounting grooves (5-9, 5-10, 6-8, 6-9) limited on the left support arm assembly (5) and the right support arm assembly (6); Insulation grooves (2-2, 3-10) are provided in the clamping openings of the outer rail clamping plate (2-1) or the inner rail clamping plate (3-2).

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