A plate chain bolt escape monitoring device
By installing a pin dislodgement monitoring device with sensors and controllers on the plate chain, and utilizing the buffer reset mechanism of the rotating frame and elastic components, the problem of equipment damage caused by plate chain pin dislodgement is solved, thus improving the safety and reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU AUTOMIBILE GRP MOTOR
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-02
AI Technical Summary
The chain pins can come loose due to vibration and foreign object interference, causing equipment damage, and existing technologies lack effective monitoring and protection measures.
Design a plate chain pin disengagement monitoring device, which uses sensors and controllers to monitor the pin position, and combines a rotating frame and elastic elements for buffering and resetting to protect the reliability of the monitoring device.
It enables timely monitoring and protection against pin detachment, reducing equipment damage and improving the safety and reliability of equipment operation.
Smart Images
Figure CN224317305U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated monitoring technology for product vehicle transport belts, and more specifically, to a plate chain pin disengagement monitoring device. Background Technology
[0002] The OEM double plastic plate chain is a long conveyor belt with two rows arranged to carry products forward. For example... Figure 4 As shown, the plate chain structure is assembled from modular plastic modules 100. Each plastic module 100 has an embedded steel frame. Pins 200 pass through each row of plastic modules 100, connecting all the plastic modules 100 in series. Locking plates 300 are installed at both ends of the pins 200, which limit the left and right movement of the pins 200, locking them in the plastic modules 100 and ensuring the normal connection and assembly of the plastic modules 100.
[0003] like Figure 5 As shown, in actual production operation, due to vibration and interference from foreign objects such as sand and gravel, the locking plates 300 at both ends of the pin 200 may detach from the plastic module 100, causing the pin 200 to lose its locking limit on both sides. During continued production operation, the pin 200, now without its limit, will slowly detach from the side of the chain. As it moves cyclically, the detached pin 200 continuously wears down the side guard strips 400 on both sides of the chain, causing severe damage to the equipment structure. Continued operation of the chain in this self-destructive state will result in extensive damage to the side guard strips 400 and the plastic module 100, causing significant losses to the equipment and requiring high repair costs and a long repair time. Utility Model Content
[0004] To overcome the problem of equipment damage caused by the detachment of the pins in the plate chain in the prior art, this utility model provides a plate chain pin detachment monitoring device, which can monitor the detached pins and at the same time protect itself, thereby improving the reliability of the monitoring device.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a plate chain pin disengagement monitoring device, which is set on the side of the plate chain during use, including: a fixed frame, a rotating frame and an elastic element. One end of the rotating frame is hinged to the fixed frame, and both ends of the elastic element are respectively connected to the fixed frame and the rotating frame. A sensor for monitoring the pin position is connected to one end of the rotating frame facing the plate chain, and the sensor is electrically connected to a controller.
[0006] In the technical solution of this utility model, sensors and controllers can monitor the dislodged pins, allowing staff to promptly detect and restore them, thus making the equipment operation safer and more reliable. When the dislodged pins come into contact with the monitoring device, the pins will push the rotating frame to deflect. The rotating frame, under the action of the elastic element, plays a buffering and automatic reset role, protecting the monitoring device itself and improving its reliability.
[0007] Furthermore, the side of the rotating frame facing the plate chain is an outwardly convex arc shape.
[0008] In this design, one side of the rotating frame is designed as an arc to act as a buffer when it comes into contact with the dislodged pin, thereby reducing the impact of the collision on the monitoring device and improving the reliability of the monitoring device.
[0009] Furthermore, the fixed frame is connected to a limiting post, the rotating frame has a limiting hole, and the limiting post is movably positioned through the limiting hole.
[0010] In this design, the combination of the limiting hole and the limiting post guides the rotation direction of the rotating frame, allowing the rotating frame to deflect along the direction in which the limiting post passes through the limiting hole.
[0011] Furthermore, the limiting hole is an oblong hole, which extends in a direction close to or away from the chain.
[0012] In this design, the limiting hole is designed as an oblong hole, which allows the rotating frame to deflect along the length of the oblong hole during the deflection process, thus facilitating the deflection of the rotating frame.
[0013] Furthermore, one end of the elastic element abuts against the end of the limiting post away from the fixed frame, and the other end of the elastic element abuts against the rotating frame.
[0014] In this design, the two ends of the elastic element abut against the limiting post and the rotating frame respectively, which can buffer and reset the rotating frame.
[0015] Furthermore, the limiting post includes a screw, a first nut, and a second nut. One end of the screw is fixedly connected to the fixing frame. The first nut and the second nut are respectively threaded onto the screw. The elastic element is located between the first nut and the second nut. One end of the elastic element abuts against the first nut, and the other end of the elastic element abuts the rotating frame against the second nut.
[0016] In this design, a limiting post is formed by connecting a first nut and a second nut to the screw. The first nut and the second nut can limit the rotation frame and the elastic element, which facilitates assembly and adjustment.
[0017] Furthermore, the elastic element is a spring and is sleeved on the limiting post.
[0018] In this design, the elastic element, a spring, is sleeved on the limiting post to provide buffering and resetting functions.
[0019] Furthermore, the rotating frame has a sensing hole on the side facing the plate chain, the sensor is connected to the rotating frame, and the sensing end of the sensor is placed in the sensing hole.
[0020] In this solution, the sensor monitors the dislodged pin through the sensing hole. The sensing hole protects the sensor and prevents direct collision between the pin and the sensor.
[0021] Furthermore, one end of the rotating frame is hinged to the fixed frame via a hinge.
[0022] In this solution, a reliable hinge is used to achieve a connection between the rotating frame and the fixed frame.
[0023] Furthermore, the sensor is a proximity switch.
[0024] In this solution, a proximity switch can be used to easily monitor whether the latch has come out.
[0025] Furthermore, the controller is a PLC.
[0026] In this solution, the PLC can receive signals from the sensors, which facilitates the control of the plate chain system. The PLC can also be connected to a host computer for display and operation.
[0027] Compared with the prior art, the beneficial effects of this utility model are:
[0028] I. The plate chain pin disengagement monitoring device of this utility model can monitor disengaged pins through sensors and controllers, allowing operators to promptly detect and restore them, making equipment operation safer and more reliable. When the disengaged pin comes into contact with the monitoring device, it will push the rotating frame to deflect. The rotating frame, under the action of the elastic element, plays a buffering and automatic reset role, protecting the monitoring device itself and improving its reliability.
[0029] II. The plate chain pin disengagement monitoring device of this utility model has an arc-shaped design on one side of the rotating frame, which acts as a transition buffer when it comes into contact with the disengaged pin, reducing the impact of the collision on the monitoring device and improving the reliability of the monitoring device.
[0030] III. The plate chain pin disengagement monitoring device of this utility model forms a limiting post by connecting a first nut and a second nut on the screw. The first nut and the second nut can limit the rotation frame and the elastic element, which facilitates assembly and adjustment. Attached Figure Description
[0031] Figure 1 This is a front view of the plate chain pin disengagement monitoring device of this utility model;
[0032] Figure 2 This is a perspective view of the plate chain pin disengagement monitoring device of this utility model;
[0033] Figure 3 This is a top view of the chain pin disengagement monitoring device of this utility model installed in a plate chain system.
[0034] Figure 4 This is a schematic diagram of an existing plate chain system where the pins have not disengaged.
[0035] Figure 5 This is a schematic diagram of an existing plate chain system with the pins disengaged.
[0036] In the attached diagram: 1. Fixing frame; 11. Mounting hole; 2. Rotating frame; 21. Arc shape; 22. Limiting hole; 23. Sensing hole; 3. Elastic element; 4. Sensor; 5. Limiting post; 51. Screw; 52. First nut; 53. Second nut; 6. Hinge; 100. Plastic module; 200. Pin; 300. Locking plate; 400. Side guard strip; 500. Liner plate; Detailed Implementation
[0037] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.
[0038] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0039] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:
[0040] Example 1
[0041] refer to Figure 1 and Figure 2 , Figure 1 This is a front view of the chain pin disengagement monitoring device of this embodiment. Figure 2 This is a perspective view of the chain pin disengagement monitoring device of this embodiment. The chain pin disengagement monitoring device disclosed in this embodiment is installed on the side of the chain during use and includes: a fixed frame 1, a rotating frame 2, and an elastic element 3. One end of the rotating frame 2 is hinged to the fixed frame 1. Both ends of the elastic element 3 are connected to the fixed frame 1 and the rotating frame 2, respectively. A sensor 4 for monitoring the pin position is connected to the end of the rotating frame 2 facing the chain. The sensor 4 is electrically connected to a controller.
[0042] In this embodiment, the detached pin can be monitored by sensor 4 and controller, allowing staff to promptly detect and restore it, making the equipment operation safer and more reliable. When the detached pin comes into contact with the monitoring device, it will push the rotating frame 2 to deflect. The rotating frame 2, under the action of the elastic element 3, plays a buffering and automatic reset role, protecting the monitoring device itself and improving its reliability.
[0043] Specifically, the mounting bracket 1 can be roughly U-shaped. Figure 1 Taking the direction shown as an example, the inner left side of the fixed frame 1 is hinged to the rotating frame 2. The lower part of the fixed frame 1 is used for fixed connection with external equipment, and the inner upper part of the fixed frame 1 is connected to the rotating frame 2 through the elastic element 3. It can be understood that the fixed frame 1 and the elastic element 3 can be directly connected or indirectly connected through other intermediate components. (Reference) Figure 2 The mounting bracket 1 has a mounting hole 11 at the bottom, which can be used to fix it to external equipment by passing a bolt through the mounting hole 11.
[0044] If sensor 4 is directly fixed to the side of the chain to monitor its disengagement, it may fail to effectively monitor the disengaged pin if the sensor 4 is too far from the chain, or if a high-precision sensor 4 is too expensive. If the sensor 4 is too close to the chain, the disengaged pin may directly impact the sensor 4, causing the monitoring device to malfunction. In this embodiment, sensor 4 is mounted on a flexible connection between the mounting bracket 1 and the rotating bracket 2. This allows for monitoring of the pin's status while protecting the monitoring device from pin impact damage, thus improving its reliability.
[0045] by Figure 1Taking the direction shown as an example, during installation, the plate chain system is located on the upper side of the monitoring device (not shown in the figure). The plate chain system moves from left to right, and the dislodged pin extends downwards towards the rotating frame 2. When the pin dislodges and moves past the sensor 4, the sensor 4 can detect it and transmit the signal to the controller, allowing the staff to promptly detect and adjust the situation to prevent accidents. When the pin dislodges downwards and contacts the rotating frame 2, the pin will collide with the rotating frame 2. The rotating frame 2 will deflect downwards around the hinge, offsetting the impact and thus protecting the monitoring device itself from failure due to the collision. At the same time, under the action of the elastic element 3, the rotating frame 2 can automatically reset and continue monitoring after the pin moves away.
[0046] refer to Figure 3 , Figure 3 This is a top-down view of the chain pin disengagement monitoring device installed in a chain system. The chain runs from bottom to top, with the monitoring devices mounted on both sides of the chain. During chain operation, if the locking plate on the side of the pin falls off, the pin will gradually disengage over time. When the disengaged pin passes the monitoring device, it will be detected by sensor 4, triggering an alarm signal. Workers can then stop the machine and inspect the chain.
[0047] refer to Figure 1 and Figure 2 The rotating frame 2 has an outwardly protruding arc shape 21 on the side facing the chain. In this embodiment, by designing one side of the rotating frame 2 as an arc shape 21, it acts as a transition buffer when it contacts and collides with the disengaged pin, reducing the impact of the collision on the monitoring device and improving the reliability of the monitoring device. At least the side of the arc shape 21 facing the direction of the chain is an arc surface. Figure 3 Taking the indicated orientation as an example, as the chain moves from bottom to top, the side of the arc 21 facing downwards is the side facing the direction from which the chain is coming. When the dislodged pin strikes the arc 21, it will gradually push the arc 21 to both sides, thereby reducing the adverse effects of the collision on the monitoring device.
[0048] refer to Figure 1 and Figure 2 One end of the rotating frame 2 is hinged to the fixed frame 1 via a hinge 6, thereby achieving a reliable hinge between the rotating frame 2 and the fixed frame 1.
[0049] In this embodiment, sensor 4 is a proximity switch, which can conveniently monitor whether the pin has come out.
[0050] In this embodiment, the controller is a PLC. The PLC can receive signals from sensor 4, facilitating the control of the chain system. The PLC can be connected to a host computer for display and operation. The PLC can be the one used in the original control system of the chain, thus combining the monitoring device with the control program of the chain system. When the pin is detected to be dislodged, the chain automatically stops and alerts the operator for maintenance.
[0051] Example 2
[0052] refer to Figure 1 and Figure 2 This embodiment is similar to Embodiment 1. The difference lies in that in this embodiment, reference... Figure 1 The fixed frame 1 is connected to the limiting post 5, and the rotating frame 2 has a limiting hole 22, through which the limiting post 5 is movably positioned. In this embodiment, the cooperation between the limiting hole 22 and the limiting post 5 guides the rotation direction of the rotating frame 2, allowing the rotating frame 2 to deflect along the direction in which the limiting post 5 passes through the limiting hole 22.
[0053] refer to Figure 2 The limiting hole 22 is an oblong hole, extending along the direction close to or away from the chain plate. By designing the limiting hole 22 as an oblong hole, the rotating frame 2 can deflect along the length of the oblong hole during deflection, facilitating the deflection of the rotating frame 2. Combined with... Figure 1 As shown, the oblong hole is along Figure 1 Extending in the left and right directions, when the rotating frame 2 deflects, the limiting post 5 can be offset in the limiting hole 22 in the left and right directions.
[0054] refer to Figure 1 One end of the elastic element 3 abuts against the end of the limiting post 5 away from the fixed frame 1, and the other end of the elastic element 3 abuts against the rotating frame 2. In this embodiment, the two ends of the elastic element 3 abut against the limiting post 5 and the rotating frame 2 respectively, which can buffer and reset the rotating frame 2. In this embodiment, with Figure 1 Taking the direction shown as an example, the elastic element 3 is located between the bottom of the limiting post 5 and the rotating frame 2. When the dislodged pin pushes the rotating frame 2 to deflect, the rotating frame 2 compresses the elastic element 3 downwards. When the pin leaves, the elastic element 3 returns to its original state and pushes the rotating frame 2 upwards to reset.
[0055] In some other embodiments, reference is made to Figure 1 As shown, the elastic element 3 can be connected between the upper inner side of the fixed frame 1 and the upper side of the rotating frame 2. Both ends of the elastic element 3 are fixedly connected to the fixed frame 1 and the movable frame, respectively. When the dislodged pin pushes the rotating frame 2 to deflect, the rotating frame 2 stretches the elastic element 3 downwards, causing deformation. When the pin leaves, the elastic element 3 returns to its original state and pulls the rotating frame 2 upwards to reset.
[0056] refer to Figure 1 The limiting post 5 includes a screw 51, a first nut 52, and a second nut 53. One end of the screw 51 is fixedly connected to the fixing frame 1. The first nut 52 and the second nut 53 are both threaded onto the screw 51. An elastic element 3 is located between the first nut 52 and the second nut 53. One end of the elastic element 3 abuts against the first nut 52, and the other end of the elastic element 3 abuts the rotating frame 2 against the second nut 53. By connecting the first nut 52 and the second nut 53 to the screw 51 to form the limiting post 5, the first nut 52 and the second nut 53 can limit the rotation frame 2 and the elastic element 3, facilitating assembly and adjustment.
[0057] Specifically, refer to Figure 1 As shown, the upper end of the screw 51 can be fixed to the inner side of the upper end of the fixing bracket 1 via a threaded connection. The mounting positions of the first nut 52 and the second nut 53 on the screw 51 can be adjusted to accommodate the installation length of the elastic element 3.
[0058] In this embodiment, the elastic element 3 is a spring and is sleeved on the limiting post 5. The elastic element 3, being a spring and sleeved on the limiting post 5, serves to buffer and reset the object. In other embodiments, the elastic element 3 can also be an elastic sheet, etc.
[0059] Example 3
[0060] refer to Figure 1 and Figure 2 This embodiment is similar to Embodiment 1. The difference lies in the reference... Figure 2 The rotating frame 2 has a sensing hole 23 on the side facing the chain. The sensor 4 is connected to the rotating frame 2, and the sensing end of the sensor 4 is placed in the sensing hole 23. The sensor 4 monitors the dislodged pin through the sensing hole 23. The sensing hole 23 can protect the sensor 4 and prevent direct collision between the pin and the sensor 4.
[0061] Specifically, the sensor 4 can be fixedly connected to the rotating frame 2 via a threaded nut. For example, in this embodiment, a mounting part extends from the side of the sensing hole 23 away from the pin, and the sensor 4 is detachably connected to the mounting part. The sensing end of the sensor 4 is placed in the sensing hole 23 but does not extend outward, which does not affect the sensor 4's monitoring of the pin, and at the same time provides good protection for the sensor 4.
[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A plate chain pin disengagement monitoring device, characterized in that: It includes a fixed frame (1), a rotating frame (2) and an elastic element (3). One end of the rotating frame (2) is hinged to the fixed frame (1). Both ends of the elastic element (3) are connected to the fixed frame (1) and the rotating frame (2) respectively. The rotating frame (2) is connected to a sensor (4) for monitoring the position of the pin at one end facing the plate chain. The sensor (4) is electrically connected to a controller.
2. The plate chain pin disengagement monitoring device according to claim 1, characterized in that: The rotating frame (2) is an outwardly protruding arc shape (21) on the side facing the plate chain.
3. The plate chain pin disengagement monitoring device according to claim 1, characterized in that: The fixed frame (1) is connected to the limiting post (5), the rotating frame (2) has a limiting hole (22), and the limiting post (5) is movably set through the limiting hole (22).
4. The plate chain pin disengagement monitoring device according to claim 3, characterized in that: The limiting hole (22) is an oblong hole, which extends in the direction close to or away from the plate chain.
5. The plate chain pin disengagement monitoring device according to claim 4, characterized in that: One end of the elastic element (3) abuts against the end of the limiting post (5) away from the fixed frame (1), and the other end of the elastic element (3) abuts against the rotating frame (2).
6. The plate chain pin disengagement monitoring device according to claim 5, characterized in that: The limiting post (5) includes a screw (51), a first nut (52) and a second nut (53). One end of the screw (51) is fixedly connected to the fixing frame (1). The first nut (52) and the second nut (53) are respectively threaded onto the screw (51). The elastic element (3) is located between the first nut (52) and the second nut (53). One end of the elastic element (3) abuts against the first nut (52), and the other end of the elastic element (3) abuts the rotating frame (2) against the second nut (53).
7. The plate chain pin disengagement monitoring device according to claim 6, characterized in that: The elastic element (3) is a spring and is sleeved on the limiting post (5).
8. The plate chain pin disengagement monitoring device according to claim 1, characterized in that: The rotating frame (2) has a sensing hole (23) on the side facing the plate chain. The sensor (4) is connected to the rotating frame (2), and the sensing end of the sensor (4) is placed in the sensing hole (23).
9. The plate chain pin disengagement monitoring device according to claim 1, characterized in that: One end of the rotating frame (2) is hinged to the fixed frame (1) via a hinge (6).
10. The plate chain pin disengagement monitoring device according to claim 1, characterized in that: The sensor (4) is a proximity switch, and the controller is a PLC.