CN220617308U

CN220617308U - Plate link chain anti-loosening detection device

Info

Publication number: CN220617308U
Application number: CN202322146987.5U
Authority: CN
Inventors: 王大维; 徐定选; 戚波; 虞惠勇; 杨新平
Original assignee: Changde Zhongche New Energy Automobile Co ltd
Current assignee: Changde Zhongche New Energy Automobile Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-03-19
Anticipated expiration: 2033-08-10

Abstract

The utility model belongs to the technical field of plate chain detection, and particularly relates to a plate chain anti-loosening detection device, which comprises a first detection mechanism and a second detection mechanism, wherein the first detection mechanism is positioned at one end of a plate chain, which is positioned at the two ends of the plate chain, and is used for downwards moving a cover plate; the detection mechanism is positioned below the plate chain to detect the position of the cover plate passing through the lower part of the plate chain in the gravity direction, and the position of the detection mechanism I in the gravity direction is higher than that of the detection mechanism II.

Description

Plate link chain anti-loosening detection device

Technical Field

The utility model belongs to the technical field of plate link chain detection, and particularly relates to a plate link chain anti-loosening detection device.

Background

Plate chains, namely chain plate conveyors, also called chain plate conveyors or chain plate lines, are conveyor lines which are composed of chains, a plurality of cover plates and the like, and are used in large conveying occasions, such as vehicle assembly workshops, at present for conveying corresponding structures and components to different stations for assembly due to the fact that the conveying capacity of the plate chains is large and the plate chains can bear large loads. When the plate chain is installed, the corresponding steel frame structure is arranged below the plate chain to serve as a support, because a single cover plate in the plate chain is generally fixed with the chain through a plurality of bolts, the problems of loosening of the bolts, loosening of the tensioning degree of the chain and the like can occur in the long-term operation process of the plate chain, after the bolts of the cover plate connecting the chain are loosened, the cover plate is loosened or even loosed, if the cover plate is loosened and one side of the cover plate is loosened and not timely monitored, the loosened or loosened cover plate is moved to the lower side of the plate chain along with the chain to interfere with the steel frame structure, after the tensioning degree of the chain is loosened, the cover plate positioned on the lower side of the plate chain is sagged, and the cover plate at a certain sagging degree is easy to interfere with the steel frame structure during movement, so that the plate chain is blocked, the steel frame structure is pulled by the cover plate or the chain is pulled out of position and the like can occur, maintenance is difficult, and long time is needed to stop, and the production efficiency of a workshop is influenced.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a plate chain anti-loosening detection device capable of detecting loosening of a cover plate and detecting the tensioning degree of a chain.

The utility model comprises a first detection mechanism and a second detection mechanism, wherein the first detection mechanism is positioned at one end of a plate chain, which is used for downwards moving a cover plate, in the two ends of the plate chain, a signal triggering range of the first detection mechanism is positioned at the side surface of a normal track, which is used for downwards moving the cover plate along the end of the plate chain, the signal triggering range of the first detection mechanism is not coincident with the normal track, and when the loosened or loose cover plate downwards moves along the end of the plate chain, the first detection mechanism is triggered by falling to the signal triggering range of the first detection mechanism due to gravity; the first detection mechanism is positioned below the plate link chain to detect the position of the cover plate passing through the lower part of the plate link chain in the gravity direction, and the position of the first detection mechanism in the gravity direction is higher than that of the second detection mechanism.

Furthermore, the first detection mechanism is a travel switch, and when the loose or loose cover plate falls to the signal triggering range of the first detection mechanism due to falling of gravity when moving downwards along the end of the plate link, the contact of the travel switch is driven to move so as to trigger the travel switch.

Further, the travel switches are two, and the two travel switches are correspondingly arranged at two sides of the end of the plate link chain.

Further, a rope is connected to the contact of the travel switch, and when the loose or loose cover plate falls to the signal trigger range of the first detection mechanism due to falling of gravity when moving downwards along the end of the plate chain, the contact of the travel switch is driven to move through the rope.

Furthermore, one end of the rope is connected with the contact of the travel switch, and the other end of the rope is fixed with the mounting seat of the second detection mechanism.

Further, when the travel switches are two, two ends of the rope are correspondingly connected with the contacts of the two travel switches.

Still further, detection mechanism II includes sensing module, and detection mechanism II detects its position in the direction of plate link chain height through the apron of plate link chain below, sensing module has two, and two sensing module are located the both sides of plate link chain below width direction respectively.

Still further, detection mechanism II still includes the protection casing, and the protection casing covers in the response module top, and response module detects through the protection casing.

Furthermore, the second detection mechanism is provided with more than two detection mechanisms, and the second detection mechanisms are arranged below the plate chain at intervals along the length direction of the plate chain.

Still further still include controller and alarm mechanism, detection mechanism one, detection mechanism two and alarm mechanism all with controller electric connection.

The utility model has the advantages that the first detection mechanism can detect whether the cover plate moving downwards is loosened or loosened, so as to avoid corresponding faults caused by direct downward movement of the cover plate with large loosening or loosening degree, the second detection mechanism can detect the height position of the cover plate below the plate chain, thereby detecting the tensioning degree of the chain, and the second detection is carried out on the cover plate passing through the first detection mechanism, thereby further eliminating the problem of small loosening of the cover plate and improving the detection reliability. The utility model can detect the loosening or loosening of the cover plate in the plate chain, detect the tensioning degree of the chain in the plate chain, and can be used for operators to manually or automatically shut down the plate chain by a controller according to signals obtained by the first detection mechanism and the second detection mechanism, so that workshop staff can maintain the plate chain more timely, and the problems that the plate chain is blocked, the steel frame structure is broken by the cover plate or the chain is pulled to be dislocated and the like caused by the interference of continuous downward movement of the falling cover plate and the steel frame structure are avoided, the downtime is shortened, and the influence on the workshop production efficiency is reduced.

Drawings

Fig. 1 is a schematic view of a first perspective view of an embodiment of the present utility model.

Fig. 2 is a schematic view of a second view of the first embodiment of the present utility model.

Fig. 3 is a schematic view illustrating a second embodiment of the present utility model.

Fig. 4 is a second view of the second embodiment of the present utility model.

In the figure: 1. a first detection mechanism; 2. a second detection mechanism; 21. an induction module; 22. a protective cover; 3. a rope; 4. a mounting base; 5. and a cover plate.

Detailed Description

As shown in fig. 1-4, during the running process of the plate chain, the cover plate 5 at one end moves downward, while the cover plate at the other end moves upward, as shown in fig. 1, a side view of one end of the cover plate 5 moving downward is shown in fig. 2 and 4, which are right views from the perspective of fig. 1 and 3, when the bolts connected with the chain of the cover plate 5 are not loosened, the track of the downward movement of the cover plate 5 along the end of the plate chain is a normal track, when the bolts connected with the chain of the cover plate 5 are loosened, the loose part of the cover plate 5 falls down due to gravity, the posture changes correspondingly, and at this time, the track of the downward movement of the cover plate 5 along the end of the plate chain is an abnormal track. The plate chain anti-loosening detection device comprises a first detection mechanism 1 and a second detection mechanism 2, wherein the first detection mechanism 1 is positioned at one end of the plate chain, which is downwards moved, of a cover plate 5, the signal triggering range of the first detection mechanism 1 is positioned at the side surface of a normal track, which is downwards moved, of the cover plate 5 along the end of the plate chain, the signal triggering range of the first detection mechanism 1 is not overlapped with the normal track, namely, the first detection mechanism 1 is not triggered when the cover plate 5 downwards moves along the normal track, and when the loosened or loosened cover plate 5 downwards moves along the end of the plate chain, the loosened or loosened part falls down under the action of gravity and falls to the signal triggering range of the first detection mechanism 1, and corresponding signals are obtained. The second detection mechanism 2 is located below the plate chain to detect the position of the cover plate 5 passing through the lower part of the plate chain in the height direction of the plate chain, when the chain is tensioned and loosened, a certain degree of sagging occurs, the position of the cover plate 5 passing through the lower part of the plate chain in the gravity direction becomes lower, when the cover plate 5 falls into the signal triggering range of the second detection mechanism 2, the second detection mechanism 2 is triggered to obtain a corresponding signal, and when the cover plate 5 is small in loosening degree, the falling amplitude is small and is not detected by the first detection mechanism 1 when the cover plate 5 moves downwards, the cover plate 5 can be detected secondarily through the second detection mechanism 2, hidden danger is eliminated, and the detection reliability is improved. And the position of the second detecting mechanism 2 in the gravity direction is lower than the first detecting mechanism 1, namely the position of the first detecting mechanism 1 is higher than the position of the second detecting mechanism 2, so that the first detecting mechanism 1 detects the position of the cover plate 5 first.

According to the plate chain anti-loosening detection device provided by the utility model, whether the cover plate 5 moving downwards is loosened or loosened can be detected through the detection mechanism I1, so that corresponding faults caused by direct downward movement of the cover plate 5 with large loosening or loosening degree are avoided, the height position of the cover plate 5 below the plate chain can be detected through the detection mechanism II 2, the tensioning degree of the chain is detected, the cover plate 5 after passing through the detection mechanism I1 is detected for the second time, the problem of small loosening of the cover plate 5 is further solved, and the detection reliability is improved. The utility model can detect the loosening or loosening of the cover plate 5 in the plate chain and detect the tensioning degree of the chain in the plate chain so as to realize the anti-loosening detection of the plate chain, and according to the signals obtained by the first detection mechanism 1 and the second detection mechanism 2, operators can manually or automatically shut down the plate chain by a controller, and workshop staff can maintain the plate chain more timely, so that the plate chain is prevented from being blocked, the steel frame structure is pulled by the cover plate or the chain is prevented from being pulled out of position by the interference caused by the continuous downward movement of the falling cover plate 5, the downtime is shortened, and the influence on the workshop production efficiency is reduced.

The first detection mechanism 1 is specifically arranged on a fixed support, and the fixed support can be fixedly connected to a steel frame structure of a plate link chain or be fixedly arranged on other external bases so as to support the detection mechanism 1. In one embodiment of the present utility model, the first detection mechanism 1 is a proximity switch, that is, a non-contact trigger switch, and has a certain sensing range, where the sensing range is a signal trigger range of the first detection mechanism 1, and the trigger range of the embodiment is wider.

In the preferred embodiment of the utility model, the first detection mechanism 1 is a travel switch, namely a contact trigger switch, and when the cover plate 5 loosened or loosened by the first detection mechanism 1 falls into the signal trigger range of the first detection mechanism 1 due to falling of gravity when moving downwards along the end of the plate link, the contact of the travel switch is driven to move, so that the travel switch is triggered.

Because most one side loosens earlier when apron 5 loosens, is mostly one side state of falling promptly, as shown in fig. 2 and 4, travel switch has two, and two travel switches correspond the both sides that set up at this end of plate link to correspond to detect the looseness or the pine of apron 5 both sides, further improve the reliability that detects.

The travel switch needs to be triggered through movement of the contact, but the size of the contact is limited, the sensing range of the contact is limited relatively, preferably, a rope 3 is connected to the contact of the travel switch, the rope 3 and the contact form a signal triggering range of the detection mechanism 1 together, the sensing range of the travel switch can be increased, and a loose or loose cover plate 5 falls on the rope 3 when falling down due to gravity when moving downwards along the end of the plate link, and the contact of the travel switch is driven to move through the rope 3. Preferably, the rope 3 is made of a material which is inelastic and not easily broken, such as a steel wire rope or rope made of other materials.

Specifically, in one embodiment of the present utility model, as shown in fig. 1 and fig. 2, a single travel switch corresponds to one rope 3, one end of the rope 3 is connected to a contact of the travel switch, and the other end of the rope is fixed to other structures, for example, a mounting seat 4 of a second detection mechanism 2, in this embodiment, in order to ensure that the cover plate 5 falls down on the rope 3, the rope 3 is disposed obliquely with respect to the surface of the cover plate 5, for example, when the other end of the rope 3 is fixed to the mounting seat 4 of the second detection mechanism 2, the first detection mechanism 1 and the second detection mechanism 2 are disposed in a staggered manner, so that the rope 3 is disposed obliquely, as shown in fig. 1 and fig. 2, so as to ensure that interference is not caused under normal track movement of the cover plate 5, and that the cover plate 5 can fall on the rope 3 to trigger the travel switch when an abnormal track falls down.

In another embodiment of the utility model, as shown in fig. 3 and 4, two travel switches share one rope 3, and two ends of the rope 3 are correspondingly connected with contacts of the two travel switches, in this embodiment, the two travel switches are positioned below the center line of the end of the plate link chain, so as to ensure that the falling cover plate 5 can fall on the rope 3 to trigger the travel switches.

The detection mechanism II 2 comprises induction modules 21, the detection mechanism II detects the positions of the cover plates 5 passing through the lower sides of the plate links in the height direction of the plate links through the induction modules 21, the two induction modules 21 in the single detection mechanism II are arranged at two sides of the width direction of the lower sides of the plate links, the two induction modules 21 are respectively positioned at the two sides of the width direction of the lower sides of the plate links, the positions of the two sides of the cover plates 5 can be respectively detected, and the reliability and the effectiveness of detection are improved. In one embodiment, the sensing module 21 may be an infrared sensor, which is connected to the controller, and triggers a corresponding signal by sensing that the distance between the cover 5 and the sensor is smaller than a set distance. In another embodiment, the sensing module 21 may be a hall sensor, the cover 5 is made of metal or has magnetism, or a magnetic substance is disposed on the cover 5, so as to trigger a corresponding signal when the cover 5 falls down to the sensing range of the hall sensor. In other embodiments, the sensing module 21 may be another sensor, which can detect the change of the height position of the cover plate 5.

The second detection mechanism 2 further comprises two protection covers 22, the two protection covers 22 correspondingly cover the two induction modules 21, so as to protect the induction modules 21, avoid the cover plate 5 from falling down to crush the induction modules 21, and simultaneously prevent tiny scrap iron or other scrap sundries above the plate chain from falling on the induction modules 21 to generate false alarms, and preferably, the top of the protection cover 22 is obliquely arranged or is arc-shaped and arched, and fallen scraps can slide to two sides along the top of the protection cover 22, so that scrap accumulation is avoided. In order to avoid the detection interference of the protective cover 22 on the sensing module 21, the protective cover 22 is made of a non-metal material, is non-magnetic, and is made of a transparent material, such as a transparent acrylic material, and the sensing module 21 detects through the protective cover 22. The utility model also comprises a mounting seat 4, wherein the induction module 21 and the protective cover 22 are fixed on the mounting seat 4, and the mounting seat 4 is fixed on a steel frame structure of a plate link chain so as to support the induction module 21 and the protective cover 22.

In one embodiment of the present utility model, as shown in fig. 2 and 4, the second detection mechanism 2 is provided with one, and the second detection mechanism 2 is located below the end of the plate link chain where the first detection mechanism 1 is provided. In other embodiments of the present utility model, the second detection mechanism 2 is provided with two or more detection mechanisms, and the two or more detection mechanisms 2 are disposed below the plate link chain at intervals along the length direction of the plate link chain.

The utility model further comprises a controller and an alarm mechanism, wherein the first detection mechanism 1, the sensing module 21 and the alarm mechanism are electrically connected with the controller. The alarm mechanism specifically is three-color lamp audible and visual alarm, which has a normal operation lamplight color and two alarm lamplight colors, when the first trigger signal of the detection mechanism is sent to the controller, the controller controls the alarm mechanism to send out alarm sound and one alarm lamplight color to remind that the cover plate 5 is loosened, when the second trigger signal of the detection mechanism is sent to the controller, the controller controls the alarm mechanism to send out alarm sound and the other alarm lamplight color to remind that the lower cover plate 5 position is lowered due to loosening of the chain or small loosening of the cover plate 5, so that workshop staff can find the problem and maintain the problem more timely, the falling cover plate 5 is prevented from continuously moving downwards to interfere with the steel frame structure, the plate chain is blocked, the steel frame structure is pulled by the cover plate or the chain is pulled out of position, and other faults are avoided, the downtime is shortened, and the influence on the workshop production efficiency is reduced.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to imply that the scope of the present application is limited to such examples; combinations of features of the above embodiments or in different embodiments are also possible within the spirit of the application, steps may be implemented in any order, and there are many other variations of the different aspects of one or more embodiments described above which are not provided in detail for the sake of brevity.

One or more embodiments herein are intended to embrace all such alternatives, modifications and variations that fall within the broad scope of the present application. Any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the one or more embodiments in the present application, are therefore intended to be included within the scope of the present application.

Claims

1. The plate chain anti-loosening detection device is characterized by comprising a first detection mechanism (1) and a second detection mechanism (2), wherein the first detection mechanism (1) is positioned at one end of a plate chain, which is used for downwards moving a cover plate (5), in the two ends of the plate chain, a signal triggering range of the first detection mechanism (1) is positioned at the side surface of a normal track, which is used for downwards moving the cover plate (5) along the end of the plate chain, the signal triggering range of the first detection mechanism (1) is not overlapped with the normal track, and when the loosened or loosened cover plate (5) downwards moves along the end of the plate chain, the loosened or loosened cover plate (5) falls down to the signal triggering range of the first detection mechanism (1) due to gravity, the first detection mechanism (1) is triggered; the second detection mechanism (2) is positioned below the plate link chain to detect the position of the cover plate (5) passing through the lower part of the plate link chain in the gravity direction, and the position of the first detection mechanism (1) in the gravity direction is higher than that of the second detection mechanism (2).

2. The plate link chain looseness prevention detection device as claimed in claim 1, wherein the first detection mechanism (1) is a travel switch, and when the loosened or loosened cover plate (5) falls down to a signal triggering range of the first detection mechanism (1) due to gravity when moving downwards along the end of the plate link chain, a contact point of the travel switch is driven to move so as to trigger the travel switch.

3. The plate link chain looseness prevention detection device of claim 2, wherein the travel switches are two, and the two travel switches are correspondingly arranged at two sides of the end of the plate link chain.

4. A plate link chain anti-loosening detection device as claimed in claim 2 or 3, wherein the contact of the travel switch is connected with a rope (3), and the loose or loosened cover plate (5) is driven by the rope (3) to move when falling into the signal triggering range of the first detection mechanism (1) due to gravity when moving downwards along the end of the plate link chain.

5. The plate link chain looseness prevention detection device of claim 4, wherein one end of the rope (3) is connected with a contact of a travel switch, and the other end of the rope is fixed with a mounting seat (4) of the detection mechanism II (2).

6. The plate link chain looseness prevention detection device according to claim 4, wherein when two travel switches are arranged, two ends of the rope (3) are correspondingly connected with contacts of the two travel switches.

7. The plate link chain looseness prevention detection device according to any of claims 1-3, 5 and 6, wherein the second detection mechanism (2) comprises a sensing module (21), the second detection mechanism (2) detects the position of the cover plate (5) passing under the plate link chain in the height direction of the plate link chain through the sensing module (21), the sensing module (21) is provided with two sensing modules, and the two sensing modules (21) are respectively positioned at two sides of the width direction under the plate link chain.

8. The plate link chain looseness prevention detection device of claim 7, wherein the second detection mechanism (2) further comprises a protective cover (22), the protective cover (22) covers the upper portion of the sensing module (21), and the sensing module (21) detects through the protective cover (22).

9. The plate link chain looseness prevention detection device of claim 7, wherein the second detection mechanism (2) is provided with more than two detection mechanisms, and the more than two detection mechanisms (2) are arranged at intervals along the length direction of the plate link chain below the plate link chain.

10. The plate link chain looseness prevention detection device of any of claims 1-3, 5, 6, 8 and 9, further comprising a controller and an alarm mechanism, wherein the first detection mechanism (1), the second detection mechanism (2) and the alarm mechanism are all electrically connected with the controller.