Roller shaft breakage detection device
By connecting the detection ropes to the emergency stop switch at both ends of the roller shaft, the problem of low detection reliability of the existing device is solved, and the alarm can be triggered in time regardless of which end of the shaft breaks, thus improving the reliability of shaft breakage detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOSTEEL METALLURGICAL CONSTRUCTION CORP
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-26
AI Technical Summary
Existing roller shaft breakage detection devices have low reliability when one end of the shaft breaks, and cannot trigger an alarm in a timely manner.
A first detection rope and a second detection rope are respectively installed at both ends of the roller shaft, and are connected to the first emergency stop switch and the second emergency stop switch respectively, to ensure that the corresponding emergency stop switch can be triggered no matter which end of the shaft breaks, thereby improving the reliability of detection.
By installing detection ropes at both ends of the shaft, the emergency stop switch can be triggered regardless of which end of the shaft breaks, improving the reliability of shaft breakage detection and avoiding equipment damage caused by untimely detection.
Smart Images
Figure CN224410526U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of belt conveyor equipment operation and maintenance, and in particular to a drum shaft breakage detection device. Background Technology
[0002] Belt conveyors are the main equipment for material transfer, and rollers and belts are the essential components of a belt conveyor. The belt is mounted on the rollers. When rollers are damaged due to shaft defects, prolonged use, or other factors, shaft breakage is likely to occur.
[0003] To detect shaft breakage, a detection device can be installed. Existing detection devices include a control box, a wire rope, and an alarm. The control box contains a limit switch and a rocker arm. One end of the wire rope is connected to the rocker arm, and the other end is fixed to a support. The wire rope is tightly attached to the bottom of one end of the shaft. When one end of the shaft breaks, the shaft's own weight causes the wire rope to bend downwards, pulling the rocker arm downwards, thus closing the limit switch and sending a signal to the alarm for timely audible and visual alarm activation.
[0004] However, existing shafts only have a steel wire rope at one end. If the other end of the shaft breaks, the limit switch will fail to trigger, resulting in low reliability of shaft breakage detection. Therefore, existing detection devices suffer from low reliability in shaft breakage detection. Utility Model Content
[0005] The purpose of this application is to provide a roller shaft breakage detection device to improve the reliability of shaft breakage detection. The roller includes a shaft, and the roller shaft breakage detection device includes a truss, a first emergency stop switch, a first detection rope, a second emergency stop switch, and a second detection rope. Both ends of the shaft are rotatably connected to the truss. The first emergency stop switch is fixed to the truss. One end of the first detection rope is fixed to the truss, and the other end of the first detection rope is connected to the first emergency stop switch. The first detection rope is used to be sleeved on one end of the shaft, and the first detection rope is also used to trigger the first emergency stop switch when one end of the shaft falls onto the first detection rope. The second emergency stop switch is fixed to the truss.
[0006] One end of the second detection rope is fixed to the truss, and the other end of the second detection rope is connected to the second emergency stop switch. The second detection rope is used to be sleeved on the other end of the shaft. The second detection rope is also used to trigger the second emergency stop switch when the other end of the shaft falls onto the second detection rope.
[0007] Optionally, the first detection rope includes a first rope and a second rope. One end of the first rope is fixed to the truss, and the other end of the first rope is connected to the first emergency stop switch. Both ends of the second rope are respectively hung on the first rope, and the second rope is used to loop around one end of the shaft.
[0008] Optionally, the second detection rope includes a third rope and a fourth rope. One end of the third rope is fixed to the truss, and the other end of the third rope is connected to the second emergency stop switch. Both ends of the fourth rope are respectively hung on the third rope, and the fourth rope is used to loop around the other end of the shaft.
[0009] Optionally, the roller shaft breakage detection device further includes a fifth rope, with its two ends respectively attached to the first rope and the third rope. The fifth rope is positioned below the roller and triggers the first emergency stop switch and / or the second emergency stop switch when the roller falls onto the fifth rope.
[0010] Optionally, the roller shaft breakage detection device further includes a sixth rope, with its two ends respectively attached to the first rope and the third rope. The sixth rope is positioned below the roller and triggers the first emergency stop switch and / or the second emergency stop switch when the roller falls onto the sixth rope.
[0011] Optionally, the fifth rope and the sixth rope are arranged in a cross configuration.
[0012] Optionally, the second rope is located between the fifth rope and the sixth rope.
[0013] Optionally, the fourth rope is located between the fifth rope and the sixth rope.
[0014] Optionally, the drum shaft breakage detection device further includes a transmission device, which is electrically connected to the first emergency stop switch and the second emergency stop switch. When the first emergency stop switch and / or the second emergency stop switch is triggered, the transmission device stops operating.
[0015] Optionally, the roller shaft breakage detection device further includes a first fixing block, which is fixed to the truss, and one end of the first detection rope passes through and is fixed to the first fixing block. And / or,
[0016] The roller shaft breakage detection device also includes a second fixing block, which is fixed to the truss, and one end of the second detection rope passes through and is fixed to the second fixing block.
[0017] The beneficial effects of this application are as follows: A truss, a first emergency stop switch, a first detection rope, a second emergency stop switch, and a second detection rope are provided. Both ends of the shaft are rotatably connected to the truss. The first emergency stop switch is fixed to the truss. One end of the first detection rope is fixed to the truss, and the other end of the first detection rope is connected to the first emergency stop switch. The first detection rope is used to be sleeved on one end of the shaft, and it is also used to trigger the first emergency stop switch when one end of the shaft falls onto the first detection rope.
[0018] The second emergency stop switch is fixed to the truss. One end of the second detection rope is fixed to the truss, and the other end of the second detection rope is connected to the second emergency stop switch. The second detection rope is used to be sleeved on the other end of the shaft, and the second detection rope is also used to trigger the second emergency stop switch when the other end of the shaft falls onto the second detection rope.
[0019] Because the shaft is equipped with a first detection rope and a second detection rope at its two ends, the emergency stop switch (either the first or the second emergency stop switch) can be triggered no matter which end the shaft breaks from, thus improving the reliability of shaft breakage detection.
[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the following describes the application in detail with reference to the preferred embodiments and accompanying drawings. Attached Figure Description
[0021] Figure 1 This is a partial perspective view of a belt conveyor in one embodiment of this application;
[0022] Figure 2 This is a perspective view and a partial enlarged view of a drum shaft breakage detection device according to one embodiment of this application;
[0023] Figure 3 This is a perspective view of a drum shaft breakage detection device in one embodiment of this application (the upper layer of the truss is omitted);
[0024] Figure 4 This is a perspective view and a partial enlarged view of the roller shaft breakage detection device from another perspective in one embodiment of this application;
[0025] Figure 5 In one embodiment of this application, Figure 3 A magnified view from direction A;
[0026] Figure 6 This is a top view of the transmission device and belt in one embodiment of this application (only a portion of the belt is shown).
[0027] In the attached figures, the following labels are used:
[0028] 100 rollers
[0029] 1000 body
[0030] 1001 axis
[0031] 101 Truss
[0032] 102 First Emergency Stop Switch
[0033] 1020 First control lever
[0034] 103 First Testing Rope
[0035] 1030 First Rope
[0036] 1031 Second Rope
[0037] 104 Second Emergency Stop Switch
[0038] 1040 Second Operating Lever
[0039] 105 Second Detection Rope
[0040] 1050 Third Rope
[0041] 1051 Fourth Rope
[0042] 106 bearing housing
[0043] 107 Fifth Rope
[0044] 108 Sixth Rope
[0045] 109 Transmission device
[0046] 110 First fixed block
[0047] 111 Second fixing block
[0048] 112 belt Detailed Implementation
[0049] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.
[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present application will now be described in detail with reference to the accompanying drawings and embodiments. To enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.
[0051] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.
[0052] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0053] For ease of explanation, a rectangular coordinate system O-XYZ is established in some of the attached figures. The X-axis is parallel to the length direction of truss 101, the Y-axis is parallel to the width direction of truss 101, and the Z-axis is parallel to the height direction of truss 101. The positive directions of the X-axis, Y-axis, and Z-axis remain the same in all the attached figures with coordinate systems.
[0054] Please also refer to Figure 1 and Figure 2 This embodiment provides a roller shaft breakage detection device. The roller 100 includes a shaft 1001. The roller shaft breakage detection device includes a truss 101, a first emergency stop switch 102, a first detection rope 103, and a second emergency stop switch 104 (please refer to the second emergency stop switch 104). Figure 3 (The same below) and the second detection rope 105. Both ends of the shaft 1001 are rotatably connected to the truss 101. The first emergency stop switch 102 is fixed to the truss 101. One end of the first detection rope 103 is fixed to the truss 101, and the other end of the first detection rope 103 is connected to the first emergency stop switch 102. The first detection rope 103 is used to be sleeved on one end of the shaft 1001, and the first detection rope 103 is also used to trigger the first emergency stop switch 102 when one end of the shaft 1001 falls onto the first detection rope 103. The second emergency stop switch 104 is fixed to the truss 101. One end of the second detection rope 105 is fixed to the truss 101, and the other end of the second detection rope 105 is connected to the second emergency stop switch 104. The second detection rope 105 is used to be sleeved on the other end of the shaft 1001, and the second detection rope 105 is also used to trigger the second emergency stop switch 104 when the other end of the shaft 1001 falls onto the second detection rope 105.
[0055] like Figure 3 As shown, since the first detection rope 103 and the second detection rope 105 are respectively provided at both ends of the shaft 1001, the emergency stop switch (first emergency stop switch 102 or second emergency stop switch 104) can be triggered no matter which end the shaft 1001 breaks from, thus improving the detection reliability of the broken shaft 1001.
[0056] Please also refer to Figure 1 and Figure 3 The roller 100 may include a shaft 1001 and a body 1000. The shaft 1001 passes through the body 1000 and is coaxial with the body 1000. The central axis of the shaft 1001 may be parallel to the Y-axis. The body 1000 may be cylindrical. The truss 101 may be a two-layer rectangular steel frame structure. The truss 101 is fixed to the ground. Two bearing seats 106 may be provided on the truss 101, and the two ends of the shaft 1001 may be rotatably connected to the truss 101 through one bearing seat 106 respectively. The shaft 1001 may be rotatably connected to the lower layer of the truss 101. The front side of the lower layer of the truss 101 is connected to the front end of the shaft 1001, and the rear side of the lower layer of the truss 101 is connected to the rear end of the shaft 1001.
[0057] Please also refer to Figure 2 and Figure 3 The first emergency stop switch 102 can be a mechanical emergency stop switch. The first emergency stop switch 102 includes a first operating lever 1020. The first emergency stop switch 102 can be fixed to the upper front side of the truss 101 by screws. One end of the first detection rope 103 can be fixed to the upper front side of the truss 101 by welding. The other end of the first detection rope 103 can be connected to the first emergency stop switch 102 by screws or welding. For example, the other end of the first detection rope 103 can be connected to the first operating lever 1020.
[0058] Please also refer to Figure 2 and Figure 3 The portion of the first detection rope 103 that is fitted onto the shaft 1001 can be located below one end of the shaft 1001. The first detection rope 103 can be located on the upper front side of the truss 101. In the initial state, the first detection rope 103 and the shaft 1001 are spaced apart. When one end of the shaft 1001 falls onto the first detection rope 103, it will pull the first detection rope 103. The first detection rope 103 pulls the first operating lever 1020, triggering the first emergency stop switch 102.
[0059] Please also refer to Figure 3 and Figure 4The second emergency stop switch 104 can be a mechanical emergency stop switch. The specifications (type, shape, and size, etc.) of the second emergency stop switch 104 can be the same as those of the first emergency stop switch 102. The second emergency stop switch 104 may include a second operating lever 1040. The second emergency stop switch 104 can be fixed to the upper rear side of the truss 101 by screws. One end of the second detection rope 105 can be fixed to the upper rear side of the truss 101 by welding.
[0060] Please also refer to Figure 3 and Figure 4 The other end of the second detection rope 105 can be connected to the second emergency stop switch 104 by screws or welding. For example, the other end of the second detection rope 105 can be connected to the second operating lever 1040. The portion of the second detection rope 105 that sleeves the shaft 1001 can be located below the other end of the shaft 1001. The second detection rope 105 can be located on the upper rear side of the truss 101. In the initial state, the second detection rope 105 and the shaft 1001 are spaced apart. When the other end of the shaft 1001 falls onto the second detection rope 105, it will pull the second detection rope 105. The second detection rope 105 pulls the second operating lever 1040, triggering the second emergency stop switch 104.
[0061] Please also refer to Figure 3 and Figure 5 Optionally, the first detection rope 103 includes a first rope 1030 and a second rope 1031. One end of the first rope 1030 is fixed to the truss 101, and the other end of the first rope 1030 is connected to the first emergency stop switch 102. The two ends of the second rope 1031 are respectively hung on the first rope 1030, and the second rope 1031 is used to loop around one end of the shaft 1001. With this arrangement, when one end of the shaft 1001 falls, the two ends of the second rope 1031 can close together and abut against each other to form an O-ring, preventing one end of the shaft 1001 from bouncing.
[0062] Please also refer to Figure 3 and Figure 5 The first detection rope 103 can be composed of a first rope 1030 and a second rope 1031. The first rope 1030 can be a steel rope. One end of the first rope 1030 can be fixed to the upper front side of the truss 101 by welding. The first rope 1030 can be parallel to the X-axis. The other end of the first rope 1030 can be connected to the first emergency stop switch 102 by screws or welding. For example, the other end of the first rope 1030 can be connected to the first operating lever 1020 (please refer to the first operating lever 1020). Figure 2 )connect.
[0063] Please also refer to Figure 3 and Figure 5The first rope 1030 can be located on the upper front side of the truss 101. The two ends of the second rope 1031 can be bent into hooks and hung on the first rope 1030. Alternatively, hooks can be installed at both ends of the second rope 1031 to hang on the first rope 1030. The second rope 1031 can be a steel rope. The second rope 1031 can initially be U-shaped.
[0064] Please also refer to Figure 3 and Figure 5 Optionally, the second detection rope 105 includes a third rope 1050 and a fourth rope 1051. One end of the third rope 1050 is fixed to the truss 101, and the other end of the third rope 1050 is connected to the second emergency stop switch 104. The two ends of the fourth rope 1051 are respectively hung on the third rope 1050, and the fourth rope 1051 is used to loop around the other end of the shaft 1001. With this configuration, when the other end of the shaft 1001 falls, the two ends of the second rope 1051 can close together and abut against each other to form an O-ring, preventing the other end of the shaft 1001 from bouncing.
[0065] Please also refer to Figure 3 and Figure 5 The second detection rope 105 can be composed of a third rope 1050 and a fourth rope 1051. The third rope 1050 can be a steel rope. One end of the third rope 1050 can be fixed to the upper rear side of the truss 101 by welding. The third rope 1050 can be parallel to the X-axis. The other end of the third rope 1050 can be connected to the second emergency stop switch 104 by screws or welding. For example, the other end of the third rope 1050 can be connected to the second operating lever 1040 (please refer to the second operating lever 1040). Figure 4 (Connection). The third rope 1050 can be the upper rear side of the truss 101.
[0066] Please also refer to Figure 3 and Figure 5 The two ends of the fourth rope 1051 can be bent into hooks and hung on the third rope 1050. Alternatively, hooks can be installed at both ends of the fourth rope 1051 to hang on the third rope 1050. The fourth rope 1051 can be a steel rope. The fourth rope 1051 can initially be U-shaped.
[0067] Please also refer to Figure 3 and Figure 5 Optionally, the roller shaft breakage detection device also includes a fifth rope 107, with its two ends respectively attached to the first rope 1030 and the third rope 1050. The fifth rope 107 is used to mount the roller 100 (see roller 100 for reference). Figure 1Below the fifth rope 107, the first emergency stop switch 102 and / or the second emergency stop switch 104 are triggered. This configuration allows for the detection of the fall of the roller 100 due to the breakage of the shaft 1001 (e.g., the detection of the body 1000 falling due to the breakage of the shaft 1001), further improving the reliability of the detection of the broken shaft 1001.
[0068] Please also refer to Figure 3 and Figure 5 The fifth rope 107 can be a steel rope. Both ends of the fifth rope 107 can be bent into hooks and respectively attached to the first rope 1030 and the third rope 1050. Alternatively, hooks can be installed at both ends of the fifth rope 107 to attach it to the first rope 1030 and the third rope 1050 respectively. The front end of the fifth rope 107 can be attached to the first rope 1030, and the rear end of the fifth rope 107 can be attached to the third rope 1050.
[0069] Please also refer to Figure 3 and Figure 5 A portion of the fifth rope 107 can be positioned below the main body 1000. (Please refer to the section on roller 100 for details.) Figure 1 When the fifth rope 107 (hereinafter the same) falls to the fifth rope 107, it will pull the first rope 1030 and / or the third rope 1050, which in turn will cause the first rope 1030 to pull the first emergency stop switch 102 and / or the second rope 1031 to pull the second emergency stop switch 104. In the initial state, the fifth rope 107 and the drum 100 are spaced apart and the fifth rope 107 is U-shaped as a whole.
[0070] Please also refer to Figure 3 and Figure 5 Optionally, the roller shaft breakage detection device also includes a sixth rope 108, with its two ends respectively attached to the first rope 1030 and the third rope 1050. The sixth rope 108 is used to mount the roller 100 (see roller 100 for reference). Figure 1 Below the sixth rope 108, the first emergency stop switch 102 and / or the second emergency stop switch 104 are triggered. This configuration allows for the detection of the fall of the roller 100 due to the breakage of the shaft 1001 (e.g., the detection of the body 1000 falling due to the breakage of the shaft 1001), further improving the reliability of the detection of the broken shaft 1001.
[0071] Please also refer to Figure 3 and Figure 5The sixth rope 108 can be a steel rope. Both ends of the sixth rope 108 can be bent into hooks and respectively attached to the first rope 1030 and the third rope 1050. Alternatively, hooks can be installed at both ends of the sixth rope 108 to attach it to the first rope 1030 and the third rope 1050 respectively. The front end of the sixth rope 108 can be attached to the first rope 1030, and the rear end of the sixth rope 108 can be attached to the third rope 1050.
[0072] Please also refer to Figure 3 and Figure 5 A portion of the sixth rope 108 can be positioned below the main body 1000. (Please refer to the section on roller 100 for details.) Figure 1 When the rope (hereinafter the same) falls to the sixth rope 108, it will pull the first rope 1030 and / or the third rope 1050, which in turn will cause the first rope 1030 to pull the first emergency stop switch 102 and / or the second rope 1031 to pull the second emergency stop switch 104. In the initial state, the sixth rope 108 and the drum 100 are spaced apart and the sixth rope 108 is U-shaped as a whole.
[0073] Please also refer to Figure 3 and Figure 5 Optionally, the fifth rope 107 and the sixth rope 108 are arranged in a cross configuration. This arrangement allows the fifth rope 107 and the sixth rope 108 to more stably support the falling roller 100 (see roller 100 for reference). Figure 1 (The same applies below), thereby more reliably triggering the first emergency stop switch 102 and / or the second emergency stop switch 104. The fifth rope 107 and the sixth rope 108 can cross below the main body 1000.
[0074] like Figure 5 As shown, optionally, the second rope 1031 is located between the fifth rope 107 and the sixth rope 108. With this arrangement, the fifth rope 107 and the sixth rope 108 can assist in closing the two ends of the second rope 1031, further preventing one end of the shaft 1001 from bouncing. The second rope 1031 and the fifth rope 107 are spaced apart. The second rope 1031 and the sixth rope 108 are also spaced apart. The second rope 1031 can be located between the contact position of the fifth rope 107 and the first rope 1030, and between the contact position of the sixth rope 108 and the first rope 1030.
[0075] like Figure 5 As shown, optionally, the fourth rope 1051 is located between the fifth rope 107 and the sixth rope 108. With this arrangement, the fifth rope 107 and the sixth rope 108 can assist in closing the two ends of the fourth rope 1051, further preventing the other end of the shaft 1001 from bouncing. The fourth rope 1051 and the fifth rope 107 are spaced apart. The fourth rope 1051 and the sixth rope 108 are spaced apart. The fourth rope 1051 can be located between the contact position of the fifth rope 107 and the third rope 1050, and between the contact position of the sixth rope 108 and the third rope 1050.
[0076] Please also refer to Figure 3 and Figure 6 Optionally, the roller shaft breakage detection device also includes a transmission device 109. The transmission device 109 is electrically connected to the first emergency stop switch 102 and the second emergency stop switch 104. When the first emergency stop switch 102 and / or the second emergency stop switch 104 are triggered, the transmission device 109 stops operating. This configuration can prevent the roller 100 from breaking when the running belt 112 and the anti-rotation roller (shaft 1001) break. (Please refer to roller 100 for details.) Figure 1 The belt 112 will stop rotating, which is called the anti-rotation roller. Friction is generated between them to prevent heat from accumulating and causing a fire.
[0077] Please also refer to Figure 1 , Figure 3 and Figure 6 The belt 112 can be driven by the transmission device 109. The transmission device 109 can be a drive roller. The belt 112 abuts against the roller 100 and drives the roller 100 to rotate. Therefore, when the transmission device 109 stops operating, both the belt 112 and the roller 100 will stop moving. The transmission device 109 can be electrically connected to the first emergency stop switch 102 and the second emergency stop switch 104 via wires, respectively.
[0078] Please also refer to Figure 2 and Figure 3 Optionally, the roller shaft breakage detection device also includes a first fixing block 110. The first fixing block 110 is fixed to the truss 101, and one end of the first detection rope 103 passes through and is fixed to the first fixing block 110. With this configuration, the first fixing block 110 can be used to prop the first detection rope 103 away from the truss 101, preventing the first detection rope 103 from directly contacting the truss 101 and scratching it.
[0079] Please also refer to Figure 2 and Figure 3 The first fixing block 110 can be fixed to the upper front side of the truss 101 by welding. After one end of the first detection rope 103 (e.g., one end of the first rope 1030) is passed through the first fixing block 110, the first detection rope 103 can be fixed to the first fixing block 110 by welding. The first fixing block 110 can be a sector-shaped steel block.
[0080] Please also refer to Figure 3 and Figure 4Optionally, the roller shaft breakage detection device also includes a second fixing block 111. The second fixing block 111 is fixed to the truss 101, and one end of the second detection rope 105 passes through and is fixed to the second fixing block 111. With this configuration, the second fixing block 111 can be used to prop the second detection rope 105 away from the truss 101, preventing the second detection rope 105 from directly contacting the truss 101 and scratching it.
[0081] Please also refer to Figure 3 and Figure 4 The second fixing block 111 can be fixed to the upper rear side of the truss 101 by welding. One end of the second detection rope 105 (e.g., one end of the third rope 1050) is threaded through the second fixing block 111 and then fixed to the second fixing block 111 by welding. The second fixing block 111 can be a fan-shaped steel block. The specifications (shape, size, and material, etc.) of the second fixing block 111 can be the same as those of the first fixing block 110.
[0082] Working principle of the drum shaft breakage detection device:
[0083] Please also refer to Figure 1 , Figure 3 and Figure 6 Under normal conditions, the transmission device 109 drives the belt 112, which in turn drives the drum 100 to rotate. When one end and / or both ends of the shaft 1001 break, the shaft 1001 falls downwards due to gravity, touching the first detection rope 103 and / or the second detection rope 105. The first detection rope 103, under downward pressure, will pull the first emergency stop switch 102. The second detection rope 105, under downward pressure, will pull the second emergency stop switch 104.
[0084] Please also refer to Figure 3 and Figure 6 When one end and / or both ends of shaft 1001 break, the main body 1000 falls downwards due to gravity. Upon contact with the fifth rope 107 or the sixth rope 108, the fifth rope 107, under downward pressure, will pull the first emergency stop switch 102 and / or the second emergency stop switch 104. Similarly, the sixth rope 108, under downward pressure, will pull the first emergency stop switch 102 and / or the second emergency stop switch 104.
[0085] Please also refer to Figure 3 and Figure 6 If either the first emergency stop switch 102 or the second emergency stop switch 104 is triggered, a signal is sent to control the transmission device 109 to stop rotating (i.e., to de-energize the transmission device 109).
[0086] The above provides a detailed description of the roller shaft breakage detection device provided in the embodiments of this application. For those skilled in the art, based on the ideas of the embodiments of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application. All equivalent modifications or changes made in accordance with the spirit and technical concept of this application should still be covered by the claims of this application.
Claims
1. A device for detecting broken shafts in a roller, wherein the roller includes a shaft, characterized in that, include: A truss, wherein the two ends of the shaft are rotatably connected to the truss; A first emergency stop switch is fixed to the truss; A first detection rope, one end of which is fixed to the truss, and the other end of which is connected to the first emergency stop switch. The first detection rope is used to be sleeved on one end of the shaft. The first detection rope is also used to trigger the first emergency stop switch when one end of the shaft falls onto the first detection rope. A second emergency stop switch is fixed to the truss; as well as The second detection rope has one end fixed to the truss and the other end connected to the second emergency stop switch. The second detection rope is used to be sleeved on the other end of the shaft. The second detection rope is also used to trigger the second emergency stop switch when the other end of the shaft falls onto the second detection rope.
2. The drum shaft breakage detection device according to claim 1, characterized in that, The first detection rope includes: A first rope, one end of which is fixed to the truss, and the other end of which is connected to the first emergency stop switch; and The second rope has its two ends respectively attached to the first rope, and is used to loop around one end of the shaft.
3. The drum shaft breakage detection device according to claim 2, characterized in that, The second detection rope includes: A third rope, one end of which is fixed to the truss, and the other end of which is connected to the second emergency stop switch; and The fourth rope has its two ends respectively attached to the third rope, and is used to be looped around the other end of the shaft.
4. The drum shaft breakage detection device according to claim 3, characterized in that, It also includes a fifth rope, the two ends of which are respectively attached to the first rope and the third rope. The fifth rope is used to be positioned below the drum and to trigger the first emergency stop switch and / or the second emergency stop switch when the drum falls onto the fifth rope.
5. The drum shaft breakage detection device according to claim 4, characterized in that, It also includes a sixth rope, the two ends of which are respectively attached to the first rope and the third rope. The sixth rope is used to be positioned below the drum and to trigger the first emergency stop switch and / or the second emergency stop switch when the drum falls onto the sixth rope.
6. The drum shaft breakage detection device according to claim 5, characterized in that, The fifth rope and the sixth rope are arranged in a cross configuration.
7. The drum shaft breakage detection device according to claim 5, characterized in that, The second rope is located between the fifth rope and the sixth rope.
8. The drum shaft breakage detection device according to claim 5, characterized in that, The fourth rope is located between the fifth rope and the sixth rope.
9. The drum shaft breakage detection device according to claim 1, characterized in that, It also includes a transmission device, which is electrically connected to the first emergency stop switch and the second emergency stop switch. When the first emergency stop switch and / or the second emergency stop switch is triggered, the transmission device stops operating.
10. The drum shaft breakage detection device according to claim 1, characterized in that, Also includes: A first fixing block is fixed to the truss, and one end of the first detection rope is passed through the first fixing block and fixed to the first fixing block; And / or, The second fixing block is fixed to the truss, and one end of the second detection rope passes through the second fixing block and is fixed to the second fixing block.