CN215154653U

CN215154653U - Friction wheel expanding device

Info

Publication number: CN215154653U
Application number: CN202121360268.8U
Authority: CN
Inventors: 于重梁; 柯昌朗
Original assignee: Dalian Qizhong Heavy Industry Co ltd
Current assignee: Dalian Qizhong Heavy Industry Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-14
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a friction wheel-expanding device, which relates to the technical field of train parking and solves the technical problem that the prior device can only be used in fixed places, comprising a mounting plate, wherein the lower surface of the mounting plate is fixedly connected with three pairs of sleeves, three pairs of sleeves are inserted with three pairs of insert rods, three pairs of insert rods are fixedly connected with the other end of each insert rod by a pair of expansion beams, the two ends of each expansion beam are respectively provided with a brake pad, the lower surface of the mounting plate is fixedly connected with two pairs of fixed sleeves at the middle of the pair of expansion beams, the two pairs of fixed sleeves are positioned on the same axis, the two pairs of fixed sleeves are slidably connected with a pair of moving rods, one pair of moving rods are fixedly connected with four pairs of push plates on the two side wall surfaces, a driving device is arranged between the moving rods, the lower surface of the mounting plate is positioned on one pair of moving rod both sides by four pairs of fixed rods, the device pushes the expansion beams to move outwards by a second pulley, the brake is carried out by expanding the brake block on the beam to press the wheel to increase the friction force.

Description

Friction wheel expanding device

Technical Field

The utility model relates to a train parking technical field specifically is a friction wheel device that rises.

Background

With the rapid development of the Chinese railway industry, the extension of lines and the expansion of heavy-duty train density, higher requirements are put forward on safe production of driving. Due to the increase of the workload and the lack of personnel, the anti-slip safety problem becomes a key point for safe transportation production. The prior anti-slip tools such as a vehicle hand brake, a manual brake fastener, an iron shoe and the like are not reliable, and a plurality of adverse factors and potential safety hazards exist. In addition, the anti-slip iron shoes are easy to lose and difficult to manage, for example, in a utility model patent with the publication number of CN209683718U, a train parking anti-slip device is disclosed, which comprises a base, wherein the base is fixedly arranged on two rails, and a braking mechanism is arranged on the base; the brake mechanism comprises two brake rails and at least one driving mechanism, the driving mechanism comprises two brake arms in a splayed shape, one ends of the two brake arms are hinged to a driving block, the other ends of the two brake arms are respectively hinged to two sliding blocks, the driving block is connected with a driving hydraulic cylinder, the driving hydraulic cylinder is fixed on a base, and the two sliding blocks are respectively arranged on two sides of the driving hydraulic cylinder; a bearing block is arranged below the sliding block and is in sliding connection with the sliding block; two brake rails are fixed respectively on two sliders, and two brake rail parallel arrangement, this utility model is used for preventing the swift current car when the train parks, simple structure, and the transmission is steady, gives the brake rail extrusion force through the brake arm of two "eight" fonts for the pneumatic cylinder atress is even, and the hydro-cylinder can not produce the eccentric wear, and however, the device is fixed on the rail, only can use at fixed place, consequently, unsatisfied current demand.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a friction wheel device that rises has solved current device and has only can be in the technical problem that fixed place used.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a friction wheel expanding device comprises a mounting plate, wherein three pairs of sleeves are fixedly connected to the lower surface of the mounting plate, three pairs of insertion rods are inserted into the three pairs of sleeves, three pairs of expansion beams are fixedly connected to the other ends of the insertion rods, brake pads are arranged at two ends of one pair of the expansion beams, two pairs of fixing sleeves are fixedly connected to the lower surface of the mounting plate and located in the middle of the one pair of the expansion beams, the two pairs of fixing sleeves are located on the same axis, a pair of moving rods are slidably connected to the two pairs of fixing sleeves, four pairs of push plates are fixedly connected to two side wall surfaces of one pair of the moving rods, a driving device is arranged between the pair of the moving rods, four pairs of fixing rods are fixedly connected to the lower surface of the mounting plate and located on two sides of one pair of the moving rods, rotating sleeves are rotatably connected to the four pairs of fixing rods, a first connecting rod is fixedly connected to one side wall surface of the rotating sleeves, and a first mounting frame is fixedly connected to the other end of the first connecting rod, the utility model discloses a push pedal, including first mounting bracket, first pulley, swivel sleeve, second connecting rod other end rigid coupling has the second mounting bracket, second mounting bracket internal rotation is connected with the second pulley, the second pulley with the expansion roof beam contacts.

Preferably, the driving device comprises a double-rod hydraulic cylinder, the double-rod hydraulic cylinder is fixedly connected to the lower surface of the mounting plate and is located between the moving rods, and the two telescopic ends of the two sides of the double-rod hydraulic cylinder are respectively fixedly connected with the moving rods.

Preferably, the two ends of the pair of expansion beams are provided with insertion grooves, the insertion grooves are of T-shaped structures, the brake pad is inserted into the insertion grooves, positioning blocks are inserted into the insertion grooves and located on one side of the brake pad, a pair of through holes are formed in the positioning blocks, a pair of bolts are inserted into the through holes, a pair of threaded holes are formed in the wall surface on one side of the insertion grooves, and the bolts are screwed in the threaded holes.

Preferably, three pairs of inserted bar one end just is located the rigid coupling has the extension spring in the sleeve, the extension spring other end with a sleeve lateral wall fixed connection.

Preferably, the first link length is greater than the second link length.

Preferably, the first mounting frame and the second mounting frame are both of a C-shaped structure.

Preferably, the push plate and the movable rod are fixedly connected with reinforcing ribs.

Preferably, the first link axis and the second link axis are collinear.

Advantageous effects

The utility model provides a friction wheel device that rises possesses following beneficial effect: the pair of moving rods move in opposite directions by the pushing of the double-rod hydraulic cylinder, the first pulley is pushed by the push plate on the movable rod, the first connecting rod is driven by the first pulley to enable the rotating sleeve to rotate on the fixed rod, the second connecting rod on the other side of the rotating sleeve drives the second pulley, the expansion beam is pushed to move outwards through the second pulley, the brake is carried out by extruding the wheels through the brake pads on the expansion beam to improve the friction force, the lever action can be realized through the length of the first connecting rod being larger than that of the second connecting rod, thereby improving the expansion force of the expansion beam, the brake pad can be drawn out from the insertion groove after the positioning block is taken down, the replacement is convenient, the inserted rod is inserted in the sleeve to limit the moving track of the expansion beam, and the extension spring is arranged to assist the separation of the expansion beam and the wheel.

Drawings

Fig. 1 is a bottom view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is an enlarged schematic view of a in fig. 1.

Fig. 4 is an enlarged schematic view of B in fig. 2.

In the figure: 1-mounting a plate; 11-a connecting column; 2-a sleeve; 21-a plunger; 22-a tension spring; 3-expanding the beam; 31-a cartridge slot; 32-a positioning block; 33-bolts; 4-brake block; 5, fixing a sleeve; 51-a travel bar; 52-push plate; 53-reinforcing ribs; 6-fixing the rod; 61-rotating sleeve; 62-a first link; 63-a first mounting frame; 64-a first pulley; 65-a second link; 66-a second mounting frame; 67-a second pulley; 7-double-rod hydraulic cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a friction wheel expanding device comprises a mounting plate 1, wherein three pairs of sleeves 2 are fixedly connected to the lower surface of the mounting plate 1, three pairs of insertion rods 21 are inserted into the sleeves 2, three pairs of expansion beams 3 are fixedly connected to the other ends of the insertion rods 21, brake pads 4 are mounted at two ends of each pair of the expansion beams 3, two pairs of fixing sleeves 5 are fixedly connected to the lower surface of the mounting plate 1 and located in the middle of one pair of the expansion beams 3, the two pairs of fixing sleeves 5 are located on the same axis, a pair of moving rods 51 are slidably connected in the two pairs of fixing sleeves 5, four pairs of push plates 52 are fixedly connected to two side wall surfaces of one pair of the moving rods 51, a driving device is mounted between the moving rods 51, four pairs of fixing rods 6 are fixedly connected to two sides of the moving rods 51, a rotating sleeve 61 is rotatably connected to the four pairs of fixing rods 6, a first connecting rod 62 is fixedly connected to one side wall surface of the rotating sleeve 61, a first mounting frame 63 is fixedly connected to the other end of the first connecting rod 62, a first pulley 64 is rotatably connected to the first mounting frame 63, the first pulley 64 is in contact with the push plate 52, a second connecting rod 65 is fixedly connected to the other side wall surface of the rotating sleeve 61, a second mounting frame 66 is fixedly connected to the other end of the second connecting rod 65, a second pulley 67 is rotatably connected to the second mounting frame 66, and the second pulley 67 is in contact with the expansion beam 3; the driving device comprises a double-rod hydraulic cylinder 7, the double-rod hydraulic cylinder 7 is fixedly connected to the lower surface of the mounting plate 1 and is positioned between the pair of moving rods 51, and the telescopic ends of the two sides of the double-rod hydraulic cylinder 7 are fixedly connected with the pair of moving rods 51 respectively; an inserting groove 31 is formed in each of two ends of each of the pair of expansion beams 3, each inserting groove 31 is of a T-shaped structure, the brake pad 4 is inserted into each inserting groove 31, a positioning block 32 is inserted into each inserting groove 31 and positioned on one side of the brake pad 4, a pair of through holes are formed in each positioning block 32, a pair of bolts 33 are inserted into the pair of through holes, a pair of threaded holes are formed in the wall surface on one side of each inserting groove 31, and the pair of bolts 33 are screwed into the pair of threaded holes; tension springs 22 are fixedly connected to one ends of the three pairs of insertion rods 21 and located in the sleeve 2, and the other ends of the tension springs 22 are fixedly connected with one side wall of the sleeve 2; the first link 62 is longer than the second link 65; the first mounting frame 63 and the second mounting frame 66 are both of a C-shaped structure; reinforcing ribs 53 are fixedly connected between the push plate 52 and the moving rod 51; the axes of the first connecting rod 62 and the second connecting rod 65 are collinear.

The following components are provided according to the scheme:

the double-rod hydraulic cylinder is a hydraulic cylinder with piston rods on two sides of a piston, is generally driven by bidirectional hydraulic pressure, and can realize constant-speed reciprocating motion. The structure of the hydraulic cylinder can be basically divided into five parts, namely a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device.

Example (b): as can be seen from the attached drawings 1-4 of the specification, when in use, the mounting plate 1 is connected with a vehicle body through a connecting column 11, when parking is needed, a pair of moving rods 51 are pushed by a double-rod hydraulic cylinder 7 to move in opposite directions, a first pulley 64 is pushed by a push plate 52 on the moving rods 51, a first connecting rod 62 is driven by the first pulley 64 to enable a rotating sleeve 61 to rotate on a fixed rod 6, a second pulley 67 is driven by a second connecting rod 65 on the other side of the rotating sleeve 61, an expansion beam 3 is pushed to move outwards by the second pulley 67, a wheel is extruded by a brake pad 4 on the expansion beam 3 to improve friction force to brake, the length of the first connecting rod 62 is greater than that of the second connecting rod 65 to play a lever role so as to improve the force of the expansion beam 3, a positioning block 33 can be taken down by screwing out a bolt 33 by an operator, the positioning block 33 can be taken down to draw the brake pad 4 out of an insertion groove 31, the expansion beam 3 is convenient to replace, the moving track of the expansion beam 3 can be limited by inserting the inserted rod 21 into the sleeve 2, and the expansion beam 3 can be separated from the wheel by the aid of the tension spring 22.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides a friction wheel expanding device, includes mounting panel (1), its characterized in that, mounting panel (1) lower surface rigid coupling has three pairs of sleeve (2), and three pairs sleeve (2) interpolation is equipped with three pairs of inserted bar (21), and three pairs inserted bar (21) other end rigid coupling has a pair of expansion beam (3), and is a pair of brake block (4) are all installed at expansion beam (3) both ends, mounting panel (1) lower surface just is located a pair of expansion beam (3) middle department rigid coupling has two pairs of fixed cover (5), and two pairs of fixed cover (5) are located same axis, and two pairs of sliding connection has a pair of carriage release lever (51) in fixed cover (5), and is a pair of on the lateral wall face of carriage release lever (51) rigid coupling has four pairs of push pedal (52), and is a pair install drive arrangement between carriage release lever (51), mounting panel (1) lower surface just is located a pair of carriage release lever (51) both sides have four pairs of dead lever (6), four right all rotate on dead lever (6) and be connected with commentaries on classics cover (61), it has first connecting rod (62) to change the rigid coupling on cover (61) a side wall face, first connecting rod (62) other end rigid coupling has first mounting bracket (63), first mounting bracket (63) internal rotation is connected with first pulley (64), first pulley (64) with push pedal (52) contact, it has second connecting rod (65) to change the rigid coupling on cover (61) another side wall face, second connecting rod (65) other end rigid coupling has second mounting bracket (66), second mounting bracket (66) internal rotation is connected with second pulley (67), second pulley (67) with expansion beam (3) contact.

2. The friction expanding wheel device as claimed in claim 1, wherein the driving device comprises a double-rod hydraulic cylinder (7), the double-rod hydraulic cylinder (7) is fixedly connected to the lower surface of the mounting plate (1) and located between the pair of moving rods (51), and the two telescopic ends of the double-rod hydraulic cylinder (7) are respectively fixedly connected to the pair of moving rods (51).

3. The friction expanding wheel device according to claim 1, wherein a pair of the expanding beams (3) are provided with inserting grooves (31) at both ends, the inserting grooves (31) are T-shaped structures, the brake pad (4) is inserted into the inserting grooves (31), a positioning block (32) is inserted into the inserting grooves (31) and located at one side of the brake pad (4), a pair of through holes are formed in the positioning block (32), a pair of bolts (33) are inserted into the pair of through holes, a pair of threaded holes are formed in a wall surface of one side of the inserting grooves (31), and a pair of bolts (33) are screwed into the pair of threaded holes.

4. The friction expanding wheel device as claimed in claim 1, wherein tension springs (22) are fixedly connected to one ends of the three pairs of insertion rods (21) and located in the sleeve (2), and the other ends of the tension springs (22) are fixedly connected to one side wall of the sleeve (2).

5. A friction expanding wheel device according to claim 1, wherein the length of the first connecting rod (62) is greater than the length of the second connecting rod (65).

6. The friction expanding wheel device as claimed in claim 1, wherein said first mounting frame (63) and said second mounting frame (66) are of a C-shaped structure.

7. The friction expanding wheel device as claimed in claim 1, wherein a reinforcing rib (53) is fixedly connected between the push plate (52) and the moving rod (51).

8. The friction expanding wheel device as claimed in claim 1, wherein the axis of the first connecting rod (62) and the axis of the second connecting rod (65) are collinear.