A suspension monorail vehicle braking device and a braking method

Abstract

The present invention provides a braking device and a braking method for a suspended monorail vehicle. The device includes an upper bracket, on which an upper rotating plate and a lower rotating plate are rotatably installed; a cylinder is fixed on the upper rotating plate; a rear-end channel is formed by concaving the rear end of the upper rotating plate; a front channel is formed by concaving the front end of the upper rotating plate; an upper brake pad is fixed on the lower side of the upper rotating plate; a through hole is formed by concaving the front end of the upper brake pad; a rear-end channel is formed by concaving the rear end of the lower rotating plate; a front channel is formed by concaving the front end of the lower rotating plate and is matched with the upper channel; a support cylinder for the piston rod to move is rotatably installed in the front channel; the support cylinder is sleeved on the piston rod; a lower brake pad corresponding to the upper brake pad is fixed on the upper side of the lower rotating plate; a through hole is formed by concaving the front end of the lower brake pad. The present invention realizes the braking of the suspended monorail vehicle by the friction between the upper brake pad and the lower brake pad on the track beam, with a large braking force; in addition, the layout space of the brake pads and the lower brake pad becomes larger, which is convenient for layout.

Description

Technical Field

[0001] The present invention belongs to the technical field of braking, and particularly relates to a braking device and a braking method for a suspended monorail vehicle. Background Art

[0002] In the prior art, the braking of a suspended monorail vehicle has the following defects: (1) Since the bogie of the suspended monorail vehicle is arranged inside the track beam (hollow), the conventional braking system designs brake pads on the inner side of the wheels, and the bogie is braked by the friction between the brake pads and the wheels. The space inside between the two wheels is small, and it is very difficult to have space to arrange conventional brake pads; (2) The conventional braking system realizes the braking of the bogie by the friction between the brake pads and the wheels, and the braking force is small. Therefore, there is an urgent need for a braking system in the prior art to solve the problems of small arrangement space of the brake pads and small braking force. Summary of the Invention

[0003] The purpose of the present invention is to provide a braking device and a braking method for a suspended monorail vehicle. To solve the braking problem, the braking of the suspended monorail vehicle is realized by the friction between brake pads (upper brake pad and lower brake pad) and the track beam, and the braking force is large; in addition, the brake pads are arranged on the outer side of the track beam. Compared with the internal space of the track beam, the arrangement space of the brake pads becomes larger and the arrangement is convenient. To achieve the above purpose, the present invention adopts the following technical solutions:

[0004] A braking device for a suspended monorail vehicle includes an upper bracket, and an upper rotating plate and a lower rotating plate are rotatably installed on the upper bracket;

[0005] A cylinder is fixed on the upper rotating plate; a rear-end channel for accommodating the upper bracket is concavely formed at the rear end of the upper rotating plate; a front-end channel for the piston rod of the cylinder to pass through is concavely formed at the front end of the upper rotating plate; an upper brake pad is fixed on the lower side surface of the upper rotating plate; the front end of the upper brake pad is concavely formed to form an upper through hole for the piston rod to pass through;

[0006] A lower-end channel for accommodating the upper bracket is concavely formed at the rear end of the lower rotating plate; a lower-front channel matching with the upper channel is concavely formed at the front end of the lower rotating plate; a support cylinder for the piston rod to move is rotatably installed in the lower-front channel; the support cylinder is sleeved on the piston rod; a lower brake pad corresponding to the upper brake pad is fixed on the upper side surface of the lower rotating plate; the front end of the lower brake pad is concavely formed to form a lower through hole for the open end of the support cylinder to pass through.

[0007] Preferably, an upper support column is fixed on the upper brake pad; a lower support column is fixed on the lower brake pad; a telescopic elastic element is connected between the lower support column and the upper support column.

[0008] Preferably, the upper support pillar is parallel to the lower support pillar; the upper support pillar and the upper through hole enclose a closed space.

[0009] Preferably, the upper support pillar is fixed to the upper side surface of the upper brake pad; the lower support pillar is fixed to the lower side surface of the lower brake pad.

[0010] Preferably, the upper brake pad includes an upper brake pad body, a left wing and a right wing fixed to the upper brake pad body; both the left wing and the right wing are fixed to the outer side surface of the upper rotating plate.

[0011] Preferably, the upper support is fixed to a lower support.

[0012] Preferably, a positioning mechanism is further fixed to the lower side surface of the lower rotating plate; the positioning mechanism can abut against the lower support.

[0013] Preferably, the positioning mechanism includes a positioning column fixed to the lower rotating plate; a stud axially distributed along the positioning column is fixed to the lower end of the positioning column; a nut is sleeved on the stud.

[0014] Preferably, the upper rotating plate and the lower rotating plate are both symmetrically arranged with respect to the upper support.

[0015] A braking method for a suspended monorail vehicle, based on the above-mentioned braking device for a suspended monorail vehicle, includes the following steps: the piston rod of the air cylinder contracts in the support cylinder, the piston rod drives the lower rotating plate to rotate upward around the upper support, when the upper brake pad fits against the upper surface of the running surface of the track beam, the piston rod continues to contract in the support cylinder, the piston rod drives the upper rotating plate to rotate downward around the upper support, when the lower brake pad fits against the lower surface of the running surface of the track beam, the piston rod stops acting to achieve braking.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) When in the braking state, the piston rod of the air cylinder pushes the upper rotating plate and the lower rotating plate, the upper brake pad fits the upper surface of the running surface of the track beam, and the lower brake pad fits the lower surface of the running surface of the track beam, so as to clamp the running surfaces of the left and right track beams through the upper brake pad and the lower brake pad; that is, the upper brake pad and the lower brake pad respectively apply pressure and friction force to the running surface of the track beam, so that the running surface of the track beam applies pressure and friction force to clamp the bogie inside it, thereby realizing the braking of the suspended monorail vehicle; when braking needs to be released, the piston rod drives the lower brake pad to rotate around the upper bracket, and when the positioning column at the lower brake pad abuts against the lower bracket, the lower brake pad stops rotating. At this time, the upper brake pad is separated from the running surface of the track beam; however, due to the continuous elongation of the piston rod, the upper brake rotates around the upper bracket and rises, and at this time, the upper brake pad is separated from the running surface of the track beam. Thus, the braking of the bogie is released. Therefore, it realizes the braking of the suspended monorail vehicle by the upper and lower brake pads rubbing against the running surface of the track beam. Compared with the contact area between the wheel and the brake pad, the contact area between the two brake pads and the running surface of the track beam is larger, so the braking force is large.

[0018] (2) Both the upper brake pad and the lower brake pad are arranged outside the running surface of the track beam. Compared with the internal space of the running surface of the track beam, the arrangement space of this brake pad becomes larger and the arrangement is convenient. Description of the Drawings

[0019] Figure 1 Rear view of the braking equipment of the suspended monorail vehicle according to Embodiment 1 of the present invention in the use state;

[0020] Figure 2 is Figure 1 a three-dimensional view;

[0021] Figure 3 is Figure 2 a partial schematic diagram;

[0022] Figure 4 is Figure 2 a schematic diagram of the left-side view;

[0023] Figure 5 Three-dimensional view of the braking equipment of the suspended monorail vehicle according to an embodiment of the present invention;

[0024] Figure 6 is Figure 5 a partial schematic diagram;

[0025] Figure 7 is Figure 5 a three-dimensional view of the left-side view;

[0026] Figure 8 is Figure 5 a three-dimensional view of the right-side view;

[0027] Figure 9 is Figure 5The perspective view from the bottom looking up;

[0028] Figure 10 is Figure 1 The rear view of the braking equipment of the suspended monorail vehicle installed in the track beam in

[0029] Figure 11 is Figure 10 The front view of the braking equipment of the suspended monorail vehicle installed in the track beam in

[0030] Figure 12 The rear view of the braking equipment of the suspended monorail vehicle in the use state in the second embodiment of the present invention.

[0031] Wherein, 1 - upper bracket, 2 - upper rotating plate, 3 - lower rotating plate, 4 - air cylinder, 5 - upper brake pad, 51 - upper brake pad body, 52 - left wing, 7 - upper support column, 8 - support cylinder, 9 - lower brake pad, 10 - lower support column, 11 - elastic element, 12 - lower bracket, 13 - positioning column, 14 - track beam running surface, 15 - track beam, 16 - vehicle body, 17 - bogie, 18 - limit block. Detailed implementation mode

[0032] The present invention will be described in more detail below with reference to the schematic diagrams, which show the preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present invention.

[0033] Embodiment 1

[0034] As Figures 1 - 9 shown, a braking equipment for a suspended monorail vehicle includes an upper bracket 1, and an upper rotating plate 2 and a lower rotating plate 3 are rotatably installed on the upper bracket 1. Among them, the upper brake pad 5 and the lower brake pad 9 in the equipment clamp on the track beam running surface. Since the track beam is fixedly arranged, the equipment realizes braking.

[0035] It is known from the prior art that the track beam 15 is a hollow structure, and the bottom surface is composed of a left track beam running surface and a right track beam running surface; a gap for the bogie to move is provided between the left track beam running surface and the right track beam running surface, as Figure 10 shown. The bogie runs along the two track beam running surfaces 14, and the bogie 17 is located inside the track beam 15, as Figure 11 shown. The braking equipment of the suspended monorail vehicle is fixed to the bogie 17 through the lower bracket 12.

[0036] The upper rotating plate 2 and the lower rotating plate 3 are both symmetrically arranged with respect to the upper bracket 1. As Figures 7 - 8As described above, the upper rotating plate 2 is connected to the upper bracket 1 through an upper rotating shaft. The right end of the upper rotating shaft is connected to a nut assembly for limiting the upper rotating plate 2 to prevent the upper rotating plate 2 from slipping out of the upper rotating shaft. Similarly, the right end of the lower rotating shaft is connected to a nut assembly for limiting the lower rotating plate 3 to prevent the lower rotating plate 3 from slipping out of the lower rotating shaft.

[0037] The upper bracket 1 is fixed to a lower bracket 12.

[0038] A cylinder 4 is fixed on the upper rotating plate 2; the rear end of the upper rotating plate 2 is recessed to form an upper rear channel for accommodating the upper bracket 1; the front end of the upper rotating plate 2 is recessed to form an upper front channel for the piston rod of the cylinder 4 to pass through. A upper brake pad 5 is fixed on the lower side surface of the upper rotating plate 2; the front end of the upper brake pad 5 is recessed to form an upper through hole for the piston rod to pass through; an upper support column 7 is fixed on the upper brake pad 5; the upper support column 7 is fixed on the upper side surface of the upper brake pad 5. Preferably, the upper brake pad 5 includes an upper brake pad body 51 and a left wing 52 and a right wing fixed on the upper brake pad body 51; both the left wing 52 and the right wing are fixed to the outer side surface of the upper rotating plate 2.

[0039] The rear end of the lower rotating plate 3 is recessed to form a lower rear channel for accommodating the upper bracket 1; the front end of the lower rotating plate 3 is recessed to form a lower front channel that cooperates with the upper channel; a support cylinder 8 for the piston rod to move is rotatably installed in the lower front channel; the support cylinder 8 is sleeved on the piston rod; wherein, as known from the prior art, a limiting mechanism is provided at the end of the piston rod to avoid the phenomenon that the piston rod slips out of the support cylinder 8; a lower brake pad 9 corresponding to the upper brake pad 5 is fixed on the upper side surface of the lower rotating plate 3; the front end of the lower brake pad 9 is recessed to form a lower through hole for the open end of the support cylinder 8 to pass through; a lower support column 10 is fixed on the lower brake pad 9; the lower support column 10 is fixed on the lower side surface of the lower brake pad 9. Among them, the lower end of the support cylinder 8 is a ring structure, and this ring structure is sleeved on a column body, and this column body is horizontally arranged and fixed on the lower side surface of the lower rotating plate 3.

[0040] A telescopic elastic element 11 is connected between the lower support column 10 and the upper support column 7. Preferably, the elastic element 11 is a spring. Among them, the function of the elastic element 11 is to buffer the impact generated during the rotation of the upper rotating plate 2 and the lower rotating plate 3, so that their rotation amplitude is relatively gentle. In addition, the elastic element 11 provides a restoring force for the braking process.

[0041] In this embodiment, the upper support column 7 is parallel to the lower support column 10; the upper support column 7 and the upper through hole enclose a closed space. Similarly, the lower support column 10 and the lower through hole enclose a closed space.

[0042] In this embodiment, to enable the lower rotating plate 3 to rotate first and the upper rotating plate 2 to rotate later, a positioning mechanism is further fixed on the lower side surface of the lower rotating plate 3; the positioning mechanism can abut against the lower bracket 12 to fix the position of the lower rotating plate 3. Specifically, the positioning mechanism includes a positioning column 13 fixed on the lower rotating plate 3; a stud distributed along the axial direction of the positioning column 13 is fixed at the lower end of the positioning column 13; a nut is sleeved on the stud. When the stud abuts against the lower bracket 12, the limit of the lower rotating plate 3 is realized.

[0043] The working principle of the present invention is as follows:

[0044] When in the braking state, the piston rod of the air cylinder 4 contracts, pushing the upper rotating plate 2 and the lower rotating plate 3. The upper brake pad 5 fits against the upper surface of the running surface 14 of the track beam, and the lower brake pad 9 fits against the lower surface of the running surface 14 of the track beam, so as to clamp the left and right running surfaces 14 of the track beam through the upper brake pad 5 and the lower brake pad 9; the bogie is clamped on the running surface 14 of the track beam, thereby realizing the braking of the suspended monorail vehicle (bogie). Specifically, the piston rod of the air cylinder 4 contracts in the support cylinder 8, and the piston rod drives the lower rotating plate 3 to rotate upward around the upper bracket 1. When the upper brake pad fits against the upper surface of the running surface of the track beam, the piston rod continues to contract in the support cylinder, and the piston rod drives the upper rotating plate 2 to rotate downward around the upper bracket 1. When the lower brake pad 9 fits against the lower surface of the running surface 14 of the track beam, the piston rod stops moving to realize braking.

[0045] When braking needs to be released, that is, when the suspended monorail vehicle needs to run, the air cylinder 4 is inflated to push the piston rod to extend. The piston rod extends downward in the support cylinder 8, and the piston rod drives the lower brake pad 9 to rotate around the upper bracket 1. When the positioning column 13 at the lower brake pad 9 abuts against the lower bracket 12, the lower brake pad 9 stops rotating. At this time, the upper brake pad 5 is separated from the running surface 14 of the track beam; but since the piston rod continues to extend, the position of the air cylinder 4 rises and will rotate around the upper bracket 1 at the same time, driving the upper brake to rotate and rise around the upper bracket 1. At this time, the upper brake pad 5 is separated from the running surface 14 of the track beam. Thus, the braking of the bogie is released.

[0046] Embodiment 2

[0047] On the basis of Embodiment 1, 2 pairs of dry limit blocks 18 are further provided to prevent the upper steering plate 2 and the lower steering plate 3 from clamping the running surface 14 of the track beam too tightly during the rotation braking process. Specifically, the 4 limit blocks 18 are symmetrically arranged with respect to the upper bracket 1; 2 of the limit blocks 18 are fixed on the lower side of the upper steering plate 2, and the other 2 limit blocks 18 are fixed on the upper side of the lower steering plate 3, as Figure 12 shown.

[0048] In addition, when one section of the track beam 15 is provided with a single-sided track beam running surface and the other sections of the track beam are provided with double-sided track beam running surfaces on both the left and right sides, due to the presence of the limit block 18, when the bogie 17 is located on the single-sided track beam running surface and a failure occurs during the braking process, the upper and lower brake pads on one side of the walking frame 2 clamp the single-sided track beam running surface, and the upper and lower brake pads on the other side of the walking frame 2 are suspended, which can prevent the upper and lower brake pads on this side from colliding with the double-sided track beam running surfaces on both the left and right sides in other sections of the track beam.

[0049] The above are only the preferred embodiments of the present invention and do not impose any limitation on the present invention. Any person skilled in the art within the technical field, without departing from the technical solution of the present invention, making any form of equivalent replacement or modification and other changes to the technical solution and technical content disclosed in the present invention, all fall within the content of the technical solution of the present invention and still belong to the protection scope of the present invention.

Claims

1. A suspension monorail vehicle braking device, characterized in that, It includes an upper support bracket, on which an upper rotating plate and a lower rotating plate are rotatably mounted; A cylinder is fixed on the upper rotating plate; a rear-end channel for accommodating the upper support bracket is recessed at the rear end of the upper rotating plate; a front-up channel for the piston rod of the cylinder to pass through is recessed at the front end of the upper rotating plate; an upper brake pad is fixed on the lower side surface of the upper rotating plate; the front end of the upper brake pad is recessed to form an upper through hole for the piston rod to pass through; a rear-end channel for accommodating the upper support bracket is recessed at the rear end of the lower rotating plate; a front-down channel matching with the front-up channel is recessed at the front end of the lower rotating plate; a support cylinder for the piston rod to move is rotatably mounted in the front-down channel; the support cylinder is sleeved on the piston rod; a lower brake pad corresponding to the upper brake pad is fixed on the upper side surface of the lower rotating plate; the front end of the lower brake pad is recessed to form a lower through hole for the open end of the support cylinder to pass through; An upper support column is fixed on the upper brake pad; a lower support column is fixed on the lower brake pad; a telescopic elastic element is connected between the lower support column and the upper support column; The upper support bracket is fixed to a lower support bracket; A positioning mechanism is further fixed on the lower side surface of the lower rotating plate; the positioning mechanism can abut against the lower support bracket.

2. The suspension monorail vehicle braking device according to claim 1, characterized in that The upper support column is parallel to the lower support column; a closed space is formed by the upper support column and the upper through hole.

3. The suspended monorail vehicle braking device according to claim 1, wherein The upper support column is fixed on the upper side surface of the upper brake pad; the lower support column is fixed on the lower side surface of the lower brake pad.

4. The suspension monorail vehicle braking device according to claim 1, characterized in that The upper brake pad includes an upper brake pad body, a left wing and a right wing fixed on the upper brake pad body; both the left wing and the right wing are fixed on the outer side surface of the upper rotating plate.

5. The suspension monorail vehicle braking device according to claim 1, characterized in that, The positioning mechanism includes a positioning column fixed on the lower rotating plate; a stud distributed along the axial direction of the positioning column is fixed at the lower end of the positioning column; a nut is sleeved on the stud.

6. The suspension monorail vehicle braking device according to claim 1, characterized in that, Both the upper rotating plate and the lower rotating plate are symmetrically arranged with respect to the upper support bracket.

7. A braking method for a suspended monorail vehicle, based on the suspended monorail vehicle braking equipment according to any one of claims 1 to 6, characterized in that, It includes the following steps: The piston rod of the cylinder contracts in the support cylinder, and the piston rod drives the lower rotating plate to rotate upward around the upper support bracket. When the upper brake pad fits the upper surface of the running surface of the track beam, the piston rod continues to contract in the support cylinder, and the piston rod drives the upper rotating plate to rotate downward around the upper support bracket. When the lower brake pad fits the lower surface of the running surface of the track beam, the piston rod stops acting to achieve braking.

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