Brake device for magnetic suspension transmission equipment under power failure condition

Abstract

The utility model discloses a brake device for magnetic suspension transmission equipment under a power failure condition, which is characterized in that the brake device comprises a supporting seat fixedly connected to a transmission equipment rack, an air cylinder is fixedly supported in the supporting seat, and the end part of an output shaft of the air cylinder is hinged with the bottom end of a connecting frame; the top end of the connecting frame is fixedly connected with a sliding table, a sliding block is arranged at the bottom of the sliding table, a sliding rail is arranged on a top plate of the supporting base, the sliding block is in sliding connection with the sliding rail, a fixed stop block is arranged at the front end of the top plate, and a movable stop block matched with the fixed stop block is arranged at the front end of the sliding table. A sensor support is further arranged on the top plate, a first sensor and a second sensor are arranged on the sensor support, and the first sensor and the second sensor correspond to the two limit positions of the sliding table respectively.

Description

Technical Field

[0001] The utility model relates to the field of automatic production, in particular to a braking device for a maglev transmission device in case of power failure. Background Art

[0002] With the continuous increase of the annual automobile production volume, automobile manufacturers have higher and higher requirements for the transmission speed of automobile welding production lines. Some new energy automobile enterprises have used maglev devices to transmit various workpieces. Although maglev devices have many advantages such as small resistance and fast transmission speed, once a power failure occurs, the electromagnetic force disappears instantly, and there is a high risk of collision for the bearing mechanism in high-speed motion and the workpieces thereon. To avoid the above problems, automobile manufacturers generally configure a backup power supply for maglev transmission devices. Once the main power supply fails, the backup power supply can also ensure the normal operation of the maglev device. However, the cost of the backup power supply is very high, and it also requires a relatively large space. Therefore, there is a need for a method or device that can solve the above problems now. Summary of the Invention

[0003] The utility model is to solve the above-mentioned deficiencies existing in the prior art, and proposes a braking device with a simple structure, ingenious design, reasonable layout, low cost, smooth and reliable operation, and can ensure safety in case of sudden power failure of the maglev transmission device.

[0004] The technical solution of the utility model is: a braking device for a maglev transmission device in case of power failure, characterized in that: the braking device includes a support seat 2 fixedly connected to the transmission device frame 1, a cylinder 3 is fixedly supported in the support seat 2, the end of the output shaft of the cylinder 3 is hinged to the bottom end of a connecting frame 4, the top end of the connecting frame 4 is fixedly connected to a sliding table 5, a slider 6 is arranged at the bottom of the sliding table 5, a slide rail 8 is arranged on the top plate 7 of the support seat 2, and the slider 6 is slidably connected to the slide rail 8.

[0005] A fixed stop 9 is arranged at the front end of the top plate 7, a moving stop 10 matching the fixed stop 9 is arranged at the front end of the sliding table 5, a sensor bracket 11 is also arranged on the top plate 7, a first sensor 12 and a second sensor 13 are arranged on the sensor bracket 11, and the first sensor 12 and the second sensor 13 respectively correspond to two limit positions of the sliding table 5.

[0006] A lower friction strip 14 is arranged on the top of the sliding table 5, and a first inclined surface 20 is arranged at the end of the lower friction strip 14.

[0007] A main guide rail is provided on the transmission device rack 1. A carrier trolley 15 is movably connected to the main guide rail. An upper friction strip 16 is provided at the bottom of the carrier trolley. A second inclined surface 17 is provided at the end of the upper friction strip 16. The second inclined surface 17 matches the first inclined surface 20.

[0008] The bottom end surfaces of the upper friction strip 16 and the lower friction strip 14 are both horizontally distributed. The slide rail 8 forms an 8-degree angle with the upper friction strip 16.

[0009] A guide post support 18 is provided at the tail end of the top plate 7. Two symmetrically distributed guide posts are connected to the guide post support 18. The guide posts are movably connected to the slide table 5. A spring 19 is sleeved on the guide posts. The spring 19 is located between the guide post support 18 and the slide table 5.

[0010] Compared with the prior art, the present utility model has the following advantages:

[0011] The braking device for the maglev transmission device in the case of power failure with this structural form has a simple structure, ingenious design and reasonable layout. Traditional maglev devices need to be equipped with a backup power supply to prevent sudden power failure. The cost of the backup power supply is relatively high, and at the same time, it requires a relatively large space. In view of the above problems, this application designs a braking device with a special structure. This device automatically works at the moment of power failure. When power fails, it uses a slide table that can move along an inclined surface to change the height of the lower friction strip, making the lower friction strip move upward. The lower friction strip either contacts the upper friction strip at the bottom of the carrier trolley or moves to a position where it interferes with the movement track of the upper friction strip, and uses the friction between the two to achieve braking, so as to achieve the purpose of automatically working at the moment of power failure and preventing the workpiece from continuing to move and causing danger. And the manufacturing process of this braking device is simple and the manufacturing cost is low. Therefore, it can be said that it has multiple advantages and is especially suitable for popularization and application in this field, and its market prospect is very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the working state of an embodiment of the present utility model.

[0013] Figure 2 is a three-dimensional structure diagram (direction one) of an embodiment of the present utility model.

[0014] Figure 3 is a three-dimensional structure diagram (direction two) in an embodiment of the present utility model.

[0015] Figure 4 is Figure 1 the enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The specific embodiments of the present utility model will be described below in conjunction with the accompanying drawings. As Figures 1 to 4 shown: A braking device for a maglev transmission device in the case of power failure, which includes a support base 2 fixedly connected to the transmission device frame 1. A cylinder 3 is fixedly supported inside the support base 2. The end of the output shaft of the cylinder 3 is hinged to the bottom end of a connecting frame 4. The top end of the connecting frame 4 is fixedly connected to a sliding table 5. A slider 6 is arranged at the bottom of the sliding table 5. A slide rail 8 is arranged on the top plate 7 of the support base 2. The slider 6 is slidably connected to the slide rail 8,

[0017] A fixed stop 9 is arranged at the front end of the top plate 7. A movable stop 10 matching the fixed stop 9 is arranged at the front end of the sliding table 5. A sensor bracket 11 is also arranged on the top plate 7. A first sensor 12 and a second sensor 13 are arranged on the sensor bracket 11. The first sensor 12 and the second sensor 13 respectively correspond to two limit positions of the sliding table 5,

[0018] A lower friction strip 14 is arranged on the top of the sliding table 5. A first inclined surface 20 is arranged at the end of the lower friction strip 14,

[0019] A main guide rail is arranged on the transmission device frame 1. A carrier trolley 15 is movably connected to the main guide rail. An upper friction strip 16 is arranged at the bottom of the carrier trolley. A second inclined surface 17 is arranged at the end of the upper friction strip 16. The second inclined surface 17 matches the first inclined surface 20,

[0020] The bottom end surfaces of the upper friction strip 16 and the lower friction strip 14 are both horizontally distributed. The slide rail 8 forms an 8-degree angle with the upper friction strip 16,

[0021] A guide post support 18 is arranged at the tail end of the top plate 7. Two symmetrically distributed guide posts are connected to the guide post support 18. The guide posts are movably connected to the sliding table 5. A spring 19 is sleeved on the guide posts. The spring 19 is located between the guide post support 18 and the sliding table 5.

[0022] The working process of the braking device for the maglev transmission device in the case of power failure according to the embodiment of the present utility model is as follows: In the normal working state, the cylinder 3 is always in the retracted state. At this time, the spring 19 is compressed. And because the slide rail 8 is inclined, the entire sliding table 5 is in a relatively low position (limit position one), and the lower friction strip 14 on its top will not interfere with the movement track of the upper friction strip 16 on the carrier trolley 15;

[0023] Once an abnormal situation occurs, resulting in a sudden power outage, the air cylinder 3 loses air pressure and no longer exerts a backward pulling force on the sliding table 5. Under the action of the spring 19, the sliding table 5 moves forward until the moving stop block 10 at the front end of the sliding table 5 contacts the fixed stop block 9 provided on the top plate 7. Since the slide rail 8 is inclinedly distributed, at this time, the sliding table 5 is at a relatively high position (limit position two). During the above movement process, the first sensor 12 and the second sensor 13 respectively detect the movement state of the sliding table 5 to ensure that the control system can real-time master the position of the sliding table 5;

[0024] When the sliding table 5 is at a relatively high position, the lower friction strip 14 at its top rises. If the carrier cart 15 happens to move above this braking device at this time, the lower friction strip 14 will contact the upper friction strip 16 at the bottom of the carrier cart 15. Under the action of the spring 19, the lower friction strip 14 will exert a certain pressure on the upper friction strip 16, and the frictional force generated between the two will stop the movement of the carrier cart 15;

[0025] If, at the moment of power outage, the carrier cart 15 does not move above this braking device, the lower friction strip 14 will directly move to a height where its movement trajectory interferes with that of the upper friction strip 16. In this way, when the carrier cart 15 moves here, the second inclined surface 17 at the end of the upper friction strip 16 will contact the first inclined surface 20 at the end of the lower friction strip 14 and squeeze the lower friction strip 14 downward. This structure can make the lower friction strip 14 move below the upper friction strip 16, and the carrier cart 15 will also stop moving under the action of the frictional force between the two;

[0026] After the power supply is restored, the air cylinder 3 returns to the working state, pulls the sliding table 5 back, and the sliding table 5 returns to the relatively low position again, and the maglev transmission device can work normally.

Claims

1. A braking device for a magnetic levitation transmission device in the case of power failure, characterized in that: The braking device includes a support base (2) fixedly connected to the frame (1) of the transmission device. A cylinder (3) is fixedly supported inside the support base (2). The end of the output shaft of the cylinder (3) is hinged to the bottom end of a connecting frame (4). The top end of the connecting frame (4) is fixedly connected to a sliding table (5). A slider (6) is provided at the bottom of the sliding table (5). A slide rail (8) is provided on the top plate (7) of the support base (2). The slider (6) is slidably connected to the slide rail (8). A fixed stop block (9) is provided at the front end of the top plate (7). A movable stop block (10) matching the fixed stop block (9) is provided at the front end of the sliding table (5). A sensor bracket (11) is further provided on the top plate (7). A first sensor (12) and a second sensor (13) are provided on the sensor bracket (11). The first sensor (12) and the second sensor (13) respectively correspond to two limit positions of the sliding table (5). A lower friction strip (14) is provided on the top of the sliding table (5). A first inclined surface (20) is provided at the end of the lower friction strip (14). A main guide rail is provided on the frame (1) of the transmission device. A carrier trolley (15) is movably connected to the main guide rail. An upper friction strip (16) is provided at the bottom of the carrier trolley. A second inclined surface (17) is provided at the end of the upper friction strip (16). The second inclined surface (17) matches the first inclined surface (20). The bottom end surfaces of the upper friction strip (16) and the lower friction strip (14) are both horizontally distributed. The slide rail (8) forms an 8-degree angle with the upper friction strip (16). A guide post support (18) is provided at the tail end of the top plate (7). Two symmetrically distributed guide posts are connected to the guide post support (18). The guide posts are movably connected to the sliding table (5). A spring (19) is sleeved on the guide posts. The spring (19) is located between the guide post support (18) and the sliding table (5).

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