Bolt fracture early warning device

Abstract

The utility model discloses a bolt fracture early warning device, which belongs to the technical field of tobacco mechanical equipment, and comprises a fixed plate, a sensing element and a locking structure, the sensing element is arranged on the fixed plate and is connected with a controller, the locking structure is provided with a plurality of fixed blocks, the fixed blocks are different in size, and the controller is connected with the controller. The locking structure is installed on the fixing plate, a bolt penetrates through the sensing element and the fixing plate to be connected with a fixing block located in the middle of the fixing plate in a screwed mode, the sensing element is extruded through the clamping force of the bolt, the sensing element collects stress data and transmits the stress data to the controller, and the controller is connected with the locking structure. A bolt needing to be detected penetrates through the sensing element to be connected with the fixing block in a screwed mode, the sensing element detects the clamping force of the bolt in real time and transmits an electric signal of the clamping force to the controller, and if the fixing bolt is loosened and the clamping force can be reduced, the controller can give an alarm to remind a maintainer to check the fixing bolt in time.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco machinery and equipment, in particular to a bolt breakage early warning device. Background Art

[0002] Bolts are widely used in the industrial field. Once the fixing screws of some important components break, it will cause production line equipment to stop, seriously affecting production efficiency and even causing equipment damage and economic losses. In order to better maintain equipment and perform preventive maintenance, a bolt breakage warning device has been designed. Utility Model Content

[0003] The main purpose of the utility model is to provide a bolt fracture early warning device, aiming to solve the problems raised in the above background.

[0004] To achieve the above-mentioned purpose, the utility model proposes a bolt fracture warning device, including a fixing plate, a sensing element and a locking structure. The sensing element is arranged on the fixing plate and is connected to a controller. The locking structure is provided with a plurality of fixing blocks, each of which is of different sizes and is used to cooperate with bolts of different diameters. The locking structure is installed on the fixing plate, and the bolt is passed through the sensing element and the fixing plate and is tightened to connect with the fixed block located in the middle of the fixing plate. The clamping force of the bolt is used to squeeze the sensing element, and the sensing element collects force data and transmits it to the controller.

[0005] Optionally, the locking structure includes a vertical column and four horizontal columns, the four horizontal columns are arranged at intervals on the arc surface of the vertical column, the end of each horizontal column is provided with the fixing block, and the sizes of the fixing blocks on different horizontal columns are different.

[0006] Optionally, a mounting hole is provided on the fixing plate, and the column passes through the mounting hole and is connected to the fixing plate.

[0007] Optionally, a limiting platform is provided on the top of the column, and an elastic member is sleeved on the column, with one end of the elastic member abutting against the limiting platform and the other end abutting against the fixing plate.

[0008] Optionally, a recess is provided at the bottom of the fixing plate, and the recess is located at the through hole of the mounting bolt, and the fixing block can be stuck into the recess after being rotated to the center position of the fixing plate.

[0009] Optionally, a first gasket is provided on the top of the sensing element, and a second gasket is provided on the bottom.

[0010] Optionally, the sensing element is an annular pressure sensor.

[0011] Compared with the existing technology, the present invention has the following beneficial effects:

[0012] The bolt fracture warning device of the present invention is provided with a fixing plate, a sensing element and a locking structure. The sensing element is provided on the fixing plate and is connected to a controller. The locking structure is provided with a plurality of fixing blocks, each of which is of different sizes and is used to cooperate with bolts of different diameters. The locking structure is installed on the fixing plate. The bolt is passed through the sensing element and the fixing plate and is tightened to the fixing block located in the middle of the fixing plate. The clamping force of the bolt squeezes the sensing element, and the sensing element collects force data and transmits it to the controller. The bolt to be detected is passed through the sensing element and is tightened to the fixing block. The sensing element detects the bolt clamping force in real time and transmits the clamping force electrical signal to the controller. If the fixing bolt becomes loose, the clamping force will decrease, and the controller will issue an alarm to prompt maintenance personnel to check the fixing bolt in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0014] Figure 1 This is a structural diagram of an embodiment of a bolt fracture warning device of the present utility model;

[0015] Figure 2 A schematic diagram of a structure in which a bolt passes through a fixing plate and a sensing element;

[0016] Figure 3 for Figure 1 A structural diagram of the locking structure.

[0017] Description of Figure Numbers:

[0018]

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0023] The present utility model provides a bolt fracture early warning device 100 .

[0024] See also Figure 1-Figure 3 In one embodiment of the present invention, the bolt fracture warning device 100 includes a fixing plate 10, a sensing element 30 and a locking structure 20. The sensing element 30 is provided on the fixing plate 10 and is connected to a controller 60. The locking structure 20 is provided with a plurality of fixing blocks 23. Each fixing block 23 is of different sizes and is used to cooperate with bolts of different diameters. The locking structure 20 is installed on the fixing plate 10. The bolt passes through the sensing element 30 and the fixing plate 10 and is tightened to the fixing block 23 located in the middle of the fixing plate 10. The clamping force of the bolt squeezes the sensing element 30, and the sensing element 30 collects force data and transmits it to the controller 60.

[0025] In this embodiment, the sensing element 30 is an annular pressure sensor, and the controller 60 are both existing technologies and will not be described in detail here; a first gasket 31 is provided on the top of the sensing element 30, and a second gasket 32 ​​is provided on the bottom, which can reduce direct friction between the bolt and the sensing element 30 and reduce wear.

[0026] The fixing bolts have a standard clamping force value (for example: 36KN). The sensing element 30 detects the bolt clamping force in real time and transmits the clamping force electrical signal to the controller 60. If the fixing bolts become loose, the clamping force will decrease. If the clamping force is lower than 70% of the standard value (25.2KN), the controller 60 will issue an alarm message to prompt maintenance personnel to check the fixing bolts in time. If the fixing bolts break and the clamping force is lower than 30% of the standard value (10.8KN), the controller 60 will immediately issue a shutdown signal, the equipment stops running, and minimize equipment losses.

[0027] In one embodiment of the present invention, the locking structure 20 includes a column 21 and four horizontal columns 22. The four horizontal columns 22 are arranged at intervals on the arc surface of the column 21. The end of each horizontal column 22 is provided with the fixing block 23, and the sizes of the fixing blocks 23 on different horizontal columns 22 are different. The fixing blocks 23 of different sizes can be matched with bolts of different diameters, and bolts of different specifications can be fixed and detected.

[0028] In this embodiment, a mounting hole 11 is provided on the fixing plate 10, and the column 21 is connected to the fixing plate 10 through the mounting hole 11. A limit platform 24 is provided on the top of the column 21, and an elastic member 40 is sleeved on the column 21. One end of the elastic member 40 is against the limit platform 24, and the other end is against the fixing plate 10.

[0029] The elastic member 40 may be a spring, but is not limited thereto. A recess 12 is provided at the bottom of the fixing plate 10, and the recess 12 is located at the through hole for the mounting bolt. The height of each fixing block 23 is higher than the thickness of the crossbar 22, so that the fixing block 23 can be stuck in the recess 12 after being rotated to the center of the fixing plate 10. It is understandable that under the elastic force of the elastic member 40, the fixing block 23 can always be against the top of the recess 12. When it is necessary to replace the fixing block 23 at another position to the recess 12, the column 21 is pressed down so that the fixing block 23 originally in the recess 12 exits the recess 12, and then the column 21 is rotated so that the fixing block 23 at another position rotates to the recess 12. The user releases his hand, and under the elastic force of the elastic member 40, the fixing block 23 is stuck in the recess 12, and then the bolt is connected to it.

[0030] Working principle: According to the size of the detection bolt, rotate the appropriate fixing block 23 to the recess 12. After releasing your hand, under the elastic force of the elastic member 40, the fixing block 23 is stuck in the recess 12, and then the bolt to be detected is passed through the sensing element 30 and tightened to the fixing block 23. The sensing element 30 detects the bolt clamping force in real time and transmits the clamping force electrical signal to the controller 60. If the fixing bolt becomes loose, the clamping force will decrease, and the controller 60 will issue an alarm to remind the maintenance personnel to check the fixing bolt in time. If the fixing bolt breaks, the clamping force is lower than the standard value by 30% (10.8KN). The controller 60 immediately issues a shutdown signal and the equipment stops running.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A bolt fracture warning device, characterized in that: It includes a fixing plate, a sensing element and a locking structure. The sensing element is arranged on the fixing plate and is connected to a controller. The locking structure is provided with a plurality of fixing blocks, each of which is of different sizes and is used to cooperate with bolts of different diameters. The locking structure is installed on the fixing plate. The bolt is passed through the sensing element and the fixing plate and is tightened to connect with the fixing block located in the middle of the fixing plate. The clamping force of the bolt is used to squeeze the sensing element, and the sensing element collects force data and transmits it to the controller.

2. The bolt fracture warning device according to claim 1, characterized in that: The locking structure includes a vertical column and four horizontal columns. The four horizontal columns are arranged at intervals on the arc surface of the vertical column. The end of each horizontal column is provided with the fixing block, and the sizes of the fixing blocks on different horizontal columns are different.

3. The bolt fracture warning device according to claim 2, characterized in that: The fixing plate is provided with a mounting hole, and the column passes through the mounting hole and is connected to the fixing plate.

4. The bolt fracture warning device according to claim 3, characterized in that: A limiting platform is provided on the top of the column, and an elastic member is sleeved on the column. One end of the elastic member abuts against the limiting platform, and the other end abuts against the fixing plate.

5. The bolt fracture warning device according to claim 1, characterized in that: A recess is provided at the bottom of the fixing plate, and the recess is located at the through hole of the mounting bolt. The fixing block can be clamped into the recess after being rotated to the center position of the fixing plate.

6. The bolt fracture warning device according to claim 1, characterized in that: The top of the sensing element is provided with a first gasket, and the bottom is provided with a second gasket.

7. The bolt fracture warning device according to claim 6, characterized in that: The sensing element is an annular pressure sensor.

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