Brake device and conveyor line

Abstract

A brake device (100), comprising: a friction member (200) configured to be fixedly connected to a mover (910); and a brake assembly (300), comprising a brake member (310) and an air bag (400), wherein the brake member (310) has a first state and a second state. When the brake member (310) is in the first state, a gap is formed between the brake member (310) and the friction member (200), and when the brake member (310) is in the second state, the brake member (310) abuts against the friction member (200), so as to limit the movement of the mover (910); the air bag (400) is configured to be inflated and expanded when power is off, and the air bag (400) abuts against the brake member (310), so that the brake member (310) is switched from the first state to the second state.

Description

Braking device and conveyor line

[0001] Related applications

[0002] This application claims priority to Chinese patent application number 202410125166.X, filed on January 30, 2024, entitled “Brake device and conveyor line,” the entire text of which is hereby incorporated by reference. Technical Field

[0003] The present application relates to the field of magnetic drive conveying technology, and in particular to a braking device and a conveying line. Background Art

[0004] In related technologies, magnetically driven conveyor lines are advanced automated conveying systems. Their core is a multi-motor intelligent conveying system based on the principle of linear motors. This system primarily consists of a stator coil and a moving magnet, using electromagnetic induction to drive and control the movers. Compared to traditional conveying methods, magnetically driven conveyor lines offer greater flexibility and adaptability, better meeting the diverse demands of modern production processes.

[0005] Magnetic drive conveyor lines have various forms, allowing for various layouts, such as circular magnetic drive conveyor lines, vertical magnetic drive conveyor lines, horizontal multi-axis magnetic drive conveyor lines, and longitudinal multi-axis magnetic drive conveyor lines. Furthermore, if the movers in the magnetic drive conveyor line encounter a power outage while conveying materials, the movers will stop moving. When the material on the movers is heavy, the movers will continue to move forward due to inertia, which may cause collisions between two adjacent movers.

[0006] Summary of the Invention

[0007] According to various embodiments of the present application, a braking device and a conveyor line are provided.

[0008] In a first aspect, a brake device of the present application comprises:

[0009] a friction member, used for fixed connection with the mover; and

[0010] A brake assembly includes a brake member and an airbag, wherein the brake member has a first state and a second state. When the brake member is in the first state, a gap exists between the brake member and the friction member. When the brake member is in the second state, the brake member abuts against the friction member to restrict movement of the mover.

[0011] The airbag is configured such that when power is cut off, the airbag can be inflated and expanded, and the airbag abuts against the brake member to switch the brake member from the first state to the second state.

[0012] In one embodiment, the brake assembly further includes a solenoid valve and an inflatable member, and the solenoid valve is connected to the airbag and the inflatable member, wherein the solenoid valve is configured such that: when powered on, the solenoid valve prevents the gas in the inflatable member from entering the airbag; when powered off, the solenoid valve does not prevent the gas in the inflatable member from entering the airbag.

[0013] In one embodiment, the brake assembly further includes a shell and a guide member, the shell having an accommodating cavity, the brake member, the airbag and the guide member are all arranged in the accommodating cavity, the brake member has a guide groove, the guide member can be slidably arranged in the guide groove, and the guide member passes through the shell, and the guide groove extends in the direction from the friction member to the airbag.

[0014] In one embodiment, the brake assembly further includes an elastic member, and the elastic force of the elastic member is used to switch the brake member from the second state to the first state.

[0015] In one embodiment, the brake assembly further includes an abutment member and a shell, the shell having an accommodating cavity, the brake member, the airbag and the abutment member are all arranged in the accommodating cavity, the brake member has a reset cavity, the elastic member is arranged in the reset cavity, the abutment member passes through the shell and the reset cavity, one end of the elastic member abuts against the abutment member, and the other end of the elastic member abuts against the cavity wall of the reset cavity.

[0016] In one embodiment, the elastic member is a spring or a spring.

[0017] In one embodiment, a first groove is provided on the side of the friction member close to the brake member, and a second groove is provided on the side of the brake member close to the friction member. Both the first groove and the second groove extend along a first direction, which is a direction perpendicular to the movement direction of the mover.

[0018] In one embodiment, the braking device further includes a pressure sensor, and the pressure sensor is used to detect the pressure value in the airbag.

[0019] In one embodiment, the brake device further includes a wear sensor, and the wear sensor is used to detect the wear value of the friction member.

[0020] In one embodiment, when the brake member is in the first state, the gap between the brake member and the friction member is approximately 0.2 mm.

[0021] In a second aspect, a conveyor line of the present application comprises:

[0022] mover;

[0023] a driving section, for driving the mover to move; and

[0024] In the brake device as described in any one of the above technical solutions, the friction member is connected to the mover, and the brake assembly is connected to the driving section, or the brake assembly is connected to the mover, and the friction member is connected to the driving section.

[0025] In one embodiment, the driving segment includes two straight segments and an arc segment, the two ends of the arc segment are respectively connected to the two straight segments, the two straight segments are parallel to the horizontal direction, and one straight segment is located above the other straight segment.

[0026] In one embodiment, the friction member and the brake member are both arc-shaped.

[0027] In one embodiment, the driving section includes a vertical section, and the included angle between the vertical section and the horizontal plane is A, 0°<A≤90°.

[0028] In one embodiment, 45°≤A≤60°. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to better describe and illustrate the embodiments and / or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the accompanying drawings should not be considered to limit the scope of the disclosed inventions, the presently described embodiments and / or examples, and any of the best modes currently understood for these inventions.

[0030] FIG1 is a schematic diagram of a brake device according to some embodiments of the present application.

[0031] FIG2 is an exploded schematic diagram of the brake assembly in the brake device according to the first embodiment of the present application.

[0032] FIG3 is an exploded schematic diagram of a brake assembly in a brake device according to a second embodiment of the present application.

[0033] FIG4 is a schematic diagram of a friction member in a brake device according to some embodiments of the present application.

[0034] FIG5 is a partial cross-sectional schematic diagram of a brake device according to some embodiments of the present application.

[0035] FIG6 is a schematic diagram of a conveyor line according to the first embodiment of the present application.

[0036] FIG7 is a schematic diagram of a conveyor line according to a second embodiment of the present application.

[0037] Explanation of the accompanying drawings: 100, brake device; 200, friction member; 210, first groove; 300, brake assembly; 310, brake member; 320, guide groove; 330, second groove; 340, reset chamber; 400, airbag; 500, shell; 510, accommodating chamber; 600, guide member; 700, elastic member; 800, abutment member; 900, conveyor line; 910, mover; 920, drive section; 930, straight section; 940, arc section; 950, vertical section. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0041] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0042] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0044] In related technologies, magnetically driven conveyor lines are advanced automated conveying systems. Their core is a multi-motor intelligent conveying system based on the principle of linear motors. This system primarily consists of a stator coil and a moving magnet, using the principle of electromagnetic induction to drive and control the mover 910. Compared to traditional conveying methods, magnetically driven conveyor lines offer greater flexibility and adaptability, better meeting the diverse needs of modern production processes.

[0045] Among them, the magnetic drive conveyor line has various forms, which can be arranged in various layouts, such as the magnetic drive conveyor line can be arranged as a circular magnetic drive conveyor line, a vertical magnetic drive conveyor line, a horizontal multi-axis magnetic drive conveyor line, and a longitudinal multi-axis magnetic drive conveyor line. Furthermore, when the mover 910 in the magnetic drive conveyor line is conveying materials, if there is a power outage or power failure, the mover 910 of the magnetic drive conveyor line will stop moving. When the material on the mover 910 is heavy, the mover 910 will continue to move forward under the action of inertia, which may cause a collision between two adjacent movers 910. In addition, when the drive section 920 in the magnetic drive conveyor line is designed in a three-dimensional manner, that is, the magnetic drive conveyor line will convey the material in a vertical direction, causing the material to rise or fall. When the mover 910 moves to the middle section of the magnetic drive conveyor line, a sudden power outage will cause the mover 910 to continue moving under the action of gravity, which may also cause two adjacent movers 910 to collide, or the mover 910 suddenly falls, causing the material on the mover 910 to fall. To this end, the present application proposes a braking device 100 .

[0046] Referring to Figures 1 to 5, in some embodiments, the brake device 100 includes a friction member 200 and a brake assembly 300. The friction member 200 is fixedly connected to the mover 910. That is, after the friction member 200 and the mover 910 are fixedly connected, as long as the friction member 200 can be braked, the mover 910 can be braked. Furthermore, the friction member 200 can be braked by the brake assembly 300. The brake assembly 300 includes a brake member 310 and an airbag 400. The brake member 310 has a first state and a second state. When the brake member 310 is in the first state, a gap exists between the brake member 310 and the friction member 200. The gap between the brake member 310 and the friction member 200 can be 0.2 mm. When the brake member 310 is in the second state, the brake member 310 abuts the friction member 200, thereby restricting the movement of the mover 910. The airbag 400 is configured such that, when power is lost, it can be inflated and expanded, abutting the brake member 310 to switch the brake member 310 from a first state to a second state. The mover 910 can be used to transport materials. The friction member 200 is fixedly connected to the mover 910. When the mover 910 is transporting materials and encounters a power outage, the airbag 400 is inflated and expanded, abutting the brake member 310 to switch the brake member 310 from a first state to a second state. When the brake member 310 is in the second state, the brake member 310 abuts the friction member 200 to restrict the movement of the mover 910. In this way, when power is lost, the brake device 100 can limit the mover 910 from continuing to move due to inertia, effectively braking the mover 910 during a power outage.

[0047] It should be noted that the brake device 100 in the present application can be used in a power outage scenario, that is, when the power is off, the conveyor line 900 loses control of the movement of the mover 910. At this time, the brake device 100 can be used to brake the mover 910. When there is no power outage, the braking of the mover 910 can usually be achieved through the operating system. In addition, in the conveyor line 900, a permanent magnet is provided on the mover 910, and the conveyor line 900 generates a magnetic field through an energized coil, thereby driving the mover 910 by magnetic force. This structure belongs to the prior art and will not be described in detail here.

[0048] The airbag 400 will now be described. Referring to Figure 3 , the airbag 400 and the brake member 310 are disposed within the housing 510 of the housing 500. The airbag 400 is located at the bottom of the housing 510, while the brake member 310 is located above the airbag 400. When the airbag 400 inflates, it pushes the brake member 310 toward the friction member 200. Prior to inflation, the airbag 400 can be in two states. In one state, the airbag 400 is flat, empty of gas. In this state, when the airbag 400 is inflated, it pushes the brake member 310. In the other state, the airbag 400 is made of an elastic material, contains gas, and has a normal pressure. Further inflation increases the pressure within the airbag 400 to a higher pressure, causing the airbag 400 to further inflate, pushing the brake member 310 toward the friction member 200.

[0049] The following describes the specific structure of the airbag 400 that inflates and expands when power is off. In some embodiments, the brake assembly 300 further includes a solenoid valve and an inflatable member. The solenoid valve is connected to both the airbag 400 and the inflatable member. When powered on, the solenoid valve prevents gas from entering the inflatable member from entering the airbag 400, but does not prevent gas from entering the inflatable member from entering the airbag 400 when power is off. The structure of the solenoid valve is conventional. The solenoid valve connects the airbag 400 and the inflatable member, which can be an air pump or air tank. It is conceivable that when gas from the inflatable member enters the airbag 400, the airbag 400 is inflated and expanded. This expansion of the airbag 400 compresses the brake member 310, thereby pushing the brake member 310 into motion and causing it to abut against the friction member 200. The airbag 400 has a relatively small inner diameter, thereby minimizing the amount of air intake. The inner diameter of the airbag 400 can be 8 mm. The gas tank can be connected to a solenoid valve and a three-way solenoid valve. The solenoid valve can be a two-position, three-way, single-control, normally closed solenoid valve, and the two can be directly connected. When powered on, the airbag 400 is in a deflated state. When powered off, it will rapidly inflate to a pressure of 4 kg (0.5 MPa). The airbag 400 can be inflated by filling it with 341 cubic centimeters of gas.

[0050] Further, referring to Figures 2 and 3, in some embodiments, the brake assembly 300 further includes a housing 500 and a guide member 600. The housing 500 has a receiving chamber 510, in which the brake member 310, the airbag 400, and the guide member 600 are all disposed. The brake member 310 has a guide groove 320, in which the guide member 600 is slidably disposed. The guide member 600 extends through the housing 500, and the guide groove 320 extends from the friction member 200 to the airbag 400. The guide member 600 may be disposed through the housing 500 and fixedly connected to the housing 500. When the airbag 400 is inflated, the airbag 400 pushes the brake member 310 toward the friction member 200. During operation, the brake member 310 can slide along the guide groove 320 under the combined action of the guide groove 320 and the guide member 600. In this way, the guide member 600 and the guide groove 320 can play a guiding role. It should be added that in some cases, the driving section 920 of the conveyor line 900 will have an arc section 940. In the case of the arc section 940, the shapes of the friction member 200 and the brake member 310 are both arc-shaped. In this case, the brake member 310 needs to have an arc-shaped trajectory when moving, so that the brake member 310 can fit the friction member 200, so that the two have a larger contact area. Otherwise, if the contact area between the brake member 310 and the friction member 200 is small, the brake member 310 will not be able to effectively brake the friction member 200. Therefore, the guide groove 320 can be an arc groove or an inclined groove. Under the action of the guide groove 320 and the guide member 600, the brake member 310 can have an arc-shaped movement trajectory.

[0051] Furthermore, the brake assembly 300 is reusable, rather than a disposable device, which can save costs. After the airbag 400 is inflated and deflated, the brake member 310 can be reset by the elastic member 700. Referring to Figures 2, 3, and 5, in some embodiments, the brake assembly 300 further includes an elastic member 700, the elastic force of which is used to switch the brake member 310 from the second state to the first state. When the brake member 310 abuts the friction member 200, the brake member 310 is in the second state. Subsequently, the airbag 400 inflates and deflates the airbag 400. At this time, the brake member 310 may still abut against the friction member 200, but the abutment between the brake member 310 and the friction member 200 is weak, allowing the elastic member 700 to switch the brake member 310 from the second state to the first state. In this way, the brake assembly 300 does not restrict the movement of the mover 910, and the mover 910 can continue to move after power is applied. The elastic member 700 may be a spring or a spring sheet, which is not specifically limited here.

[0052] The following describes how the elastic member 700 specifically switches the brake member 310 from the second state to the first state. Referring to Figures 2, 3, and 5, in some embodiments, the brake assembly 300 further includes an abutment member 800 and a housing 500. The housing 500 has a receiving chamber 510, in which the brake member 310, the airbag 400, and the abutment member 800 are disposed. The brake member 310 has a reset chamber 340, in which the elastic member 700 is disposed. The abutment member 800 passes through the housing 500 and the reset chamber 340. One end of the elastic member 700 abuts the abutment member 800, while the other end abuts the wall of the reset chamber 340. After passing through the reset chamber 340, the abutment member 800 continues through the housing 500 and is fixedly connected thereto. Thereafter, the ends of the elastic member 700 abut the abutment member 800 and the wall of the reset chamber 340, respectively. When the airbag 400 is inflated, the brake member 310 switches from the first state to the second state under the action of the airbag 400. Then, the airbag 400 is deflated, and the elasticity of the elastic member 700 can drive the brake member 310 to switch from the second state to the first state.

[0053] Further, referring to Figures 3 and 4 , in some embodiments, a first groove 210 is provided on the side of the friction member 200 proximate to the brake member 310, and a second groove 330 is provided on the side of the brake member 310 proximate to the friction member 200. Both the first groove 210 and the second groove 330 extend in a first direction, which is perpendicular to the direction of motion of the mover 910. Since both the first groove 210 and the second groove 330 extend in the first direction, when the brake member 310 and the friction member 200 come into contact, the design of the first groove 210 and the second groove 330 can increase the contact area between the brake member 310 and the friction member 200, thereby improving the braking effect of the brake member 310 on the friction member 200. The number of first grooves 210 and second grooves 330 is not specifically limited; for example, there can be ten or more first grooves 210 and second grooves 330. Both the first groove 210 and second groove 330 can be triangular (toothed) in shape.

[0054] Furthermore, in some embodiments, the brake device 100 also includes a pressure sensor, which is used to detect the pressure value within the airbag 400. After the pressure sensor detects the pressure within the airbag 400, it can be determined whether the airbag 400 is damaged, thereby ensuring that the airbag 400 can function normally. The pressure sensor can also detect the airbag 400 before and after inflation. Furthermore, the pressure sensor can be an electronic pressure sensor, which is used to monitor the performance of the airbag 400. The electronic pressure sensor is a high-precision and high-efficiency measuring device that can quickly and accurately measure the air pressure within the airbag 400. When the sensor is installed on the airbag 400, the sensor can convert the air pressure into an electrical signal, and the air pressure value can be read by connecting to a display device.

[0055] Furthermore, in some embodiments, the brake device 100 also includes a wear sensor, which is used to detect the wear value of the friction member 200. After the brake member 310 and the friction member 200 come into contact, there will be a certain amount of wear between the brake member 310 and the friction member 200. When the friction member 200 is worn to a certain extent, the wear sensor will sense this change and transmit a signal to the maintenance personnel through an indicator, so that the maintenance personnel can replace the friction member 200. Among them, the indicator usually displays a numerical value or an indicator light, and this numerical value or indicator light changes with the wear of the friction plate. Wear sensors include inductive, Hall effect, magnetoresistive, etc. The wear of the friction plate is monitored by measuring physical quantities such as changes in magnetic field or resistance caused by the wear of the friction member 200. In addition to the wear sensor of the friction member 200, other types of sensors can be used to monitor the wear of the friction member 200. For example, the wear of the friction member 200 can be determined by monitoring its vibration signal. This sensor, typically based on the principles of an accelerometer or vibration sensor, captures the vibration signal of the friction member 200 during operation and analyzes changes in these signals to monitor the wear of the friction member 200. Specifically, as wear of the friction member 200 increases, the contact area between the friction member 200 and the brake member 310 changes, causing changes in the vibration signal. The magnitude of the change in the vibration signal can be used to determine the degree of wear of the friction member 200.

[0056] Referring to Figure 6 , in some embodiments, a conveyor line 900 includes a mover 910, a drive section 920, and the brake device 100 described in the above embodiments. The drive section 920 is used to drive the mover 910. The drive section 920 is provided with a coil that can be energized. By energizing the coil, a magnetic force is generated between the mover 910 and the drive section 920, which drives the mover 910 to move on the drive section 920. The friction member 200 of the brake device 100 is connected to the mover 910, and the brake assembly 300 is connected to the drive section 920. Alternatively, the brake assembly 300 can be connected to the mover 910, and the friction member 200 can be connected to the drive section 920. In other words, the brake assembly 300 can be connected to either the mover 910 or the drive section 920. This allows for flexible setup and facilitates the layout of the conveyor line 900. The mover 910 can be used to transport materials. The friction member 200 is fixedly connected to the mover 910. When the mover 910 is transporting materials and encounters a power outage, the airbag 400 will be inflated and expanded. The airbag 400 abuts against the brake member 310 to switch the brake member 310 from the first state to the second state. When the brake member 310 is in the second state, the brake member 310 abuts against the friction member 200 to limit the movement of the mover 910. In this way, when a power outage occurs, the brake device 100 can limit the mover 910 from continuing to move under the action of inertia. Specifically, the brake device 100 can effectively brake the mover 910 when the power is off. Furthermore, the conveyor line 900 with the brake device 100 is safer.

[0057] Furthermore, in some cases, the conveyor line 900 can adopt a vertical design in order to save space. Referring to Figure 6, in some embodiments, the driving section 920 includes two straight segments 930 and an arc segment 940. The two ends of the arc segment 940 are respectively connected to the two straight segments 930. The two straight segments 930 are parallel to the horizontal direction, and one straight segment 930 is located above the other straight segment 930. Among them, one straight segment 930 is located above the other straight segment 930, which can save space. In this case, if the power is suddenly cut off when the mover 910 moves to the position of the arc segment 940, the mover 910 will continue to descend under the action of the gravity of the material and its own gravity, which may cause the material to fall or the two adjacent movers 910 to collide. Among them, the brake device 100 can stop the mover 910 in time, thereby avoiding the occurrence of the above-mentioned problems.

[0058] In addition, in order to save space or facilitate the transportation of materials, the conveyor line 900 can also adopt a lifting logistics line, that is, the driving section 920 is parallel to the vertical direction, and the mover 910 can lift the material. In this case, the brake device 100 can also stop the mover 910 in time in the event of a power outage, effectively preventing the material from falling or the collision of two adjacent movers 910. Referring to Figure 7, in some embodiments, the driving section 920 includes a vertical section 950, and the angle between the vertical section 950 and the horizontal plane is A, 0°<A≤90°. Among them, the two ends of the vertical section 950 can be connected to two straight sections 930 respectively, or the vertical section 950 can also be combined with the arc section 940, which is not specifically limited here. The angle between the vertical section 950 and the horizontal plane can be 30°, 45°, 60° or 90°. After the brake device 100 is installed on the conveyor line 900 , when the mover 910 is transported from a high position to a low position, the brake device 100 can effectively ensure the safety of the mover 910 , thereby further effectively ensuring the safety of the materials transported by the mover 910 .

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A brake device, characterized in that: include: Friction member, used for fixed connection with the mover; and, A brake assembly includes a brake member and an airbag, wherein the brake member has a first state and a second state. When the brake member is in the first state, a gap exists between the brake member and the friction member. When the brake member is in the second state, the brake member abuts against the friction member to restrict movement of the mover. The airbag is configured such that when power is cut off, the airbag can be inflated and expanded, and the airbag abuts against the brake member to switch the brake member from the first state to the second state.

2. The brake device according to claim 1, characterized in that: The brake assembly also includes a solenoid valve and an inflatable member, and the solenoid valve is connected to the airbag and the inflatable member, wherein the solenoid valve is configured as follows: when powered on, the solenoid valve prevents the gas in the inflatable member from entering the airbag; when powered off, the solenoid valve does not prevent the gas in the inflatable member from entering the airbag.

3. The brake device according to claim 1, wherein: The brake assembly also includes a shell and a guide member, the shell has a accommodating cavity, the brake member, the airbag and the guide member are all arranged in the accommodating cavity, the brake member has a guide groove, the guide member can be slidably arranged in the guide groove, and the guide member passes through the shell, and the guide groove extends in the direction from the friction member to the airbag.

4. The brake device according to claim 1, wherein: The brake assembly further includes an elastic member, and the elastic force of the elastic member is used to switch the brake member from the second state to the first state.

5. The brake device according to claim 4, characterized in that: The brake assembly also includes abutment and a shell, the shell has an accommodating cavity, the brake member, the airbag and the abutment are all arranged in the accommodating cavity, the brake member has a reset cavity, the elastic member is arranged in the reset cavity, the abutment passes through the shell and the reset cavity, one end of the elastic member abuts against the abutment, and the other end of the elastic member abuts against the cavity wall of the reset cavity.

6. The brake device according to claim 4, characterized in that: The elastic member is a spring or a spring.

7. The brake device according to claim 1, characterized in that: A first groove is provided on the side of the friction member close to the brake member, and a second groove is provided on the side of the brake member close to the friction member. Both the first groove and the second groove extend along a first direction, which is a direction perpendicular to the movement direction of the mover.

8. The brake device according to claim 1, wherein: The brake device further includes a pressure sensor, which is used to detect the pressure value in the airbag.

9. The brake device according to claim 1, wherein: The brake device further includes a wear sensor, which is used to detect the wear value of the friction member.

10. The brake device according to claim 1, wherein: When the brake member is in the first state, a gap between the brake member and the friction member is approximately 0.2 mm.

11. Conveyor line, characterized in that, include: mover; A driving section, used for driving the mover to move; and, According to any one of claims 1 to 10, the friction member is connected to the mover, and the brake assembly is connected to the driving section, or the brake assembly is connected to the mover, and the friction member is connected to the driving section.

12. The conveyor line according to claim 11, characterized in that: The driving section includes two straight segments and an arc segment. Both ends of the arc segment are respectively connected to the two straight segments. Both straight segments are parallel to the horizontal direction, and one straight segment is located above the other straight segment.

13. The conveyor line according to claim 11, characterized in that The friction member and the brake member are both arc-shaped.

14. The conveyor line according to claim 11, characterized in that The driving section includes a vertical section, and the included angle between the vertical section and the horizontal plane is A, 0°<A≤90°.

15. The conveyor line according to claim 14, characterized in that: 45°≤A≤60°。

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