Limiting detection device for engineering machinery

Abstract

The utility model discloses a limiting detection device for engineering machinery, and relates to the technical field of engineering machinery, the limiting detection device comprises a controller, a single-shaft tilt angle sensor used for detecting the expansion amount of the engineering machinery and a multi-turn encoder used for detecting the rotation angle of the engineering machinery, and the signal input end of the controller is electrically connected to the single-shaft tilt angle sensor and the multi-turn encoder; the signal output end of the single-shaft tilt angle sensor is electrically connected with the audible and visual alarm and the signal receiving and transmitting module, and the single-shaft tilt angle sensor and the multi-turn encoder are both installed on the engineering machinery in an external mode. Real-time detection of the total telescopic length, the working height and the working radius of the large arm of the engineering machinery is realized by means of the controller, and the total telescopic length, the working height and the working radius are prevented from exceeding a limited range; through the acousto-optic Internet of Things and the alarm, real-time remote transmission monitoring of the state of the engineering machinery is realized, and alarm response can be triggered in time when the operation exceeds a safety limit range.

Description

Technical Field

[0001] This application relates to the field of engineering machinery technology, and in particular to a limit detection device for engineering machinery. Background Technology

[0002] Construction machinery is a crucial component of the equipment manufacturing industry, widely used in transportation construction, energy development, mining, agricultural irrigation, and industrial and civil construction. Cranes, with their powerful lifting capacity and flexible operating radius, have become indispensable equipment in bridge erection, high-rise building construction, and large equipment handling. In emerging fields such as wind power installation, giant cranes undertake the critical task of lifting 100-meter-long blades and tens-of-tons-heavy nacelles. Excavators, with their efficient digging and loading capabilities, excel in earthmoving, mining, and municipal pipeline laying, appearing in everything from urban subway tunnel excavation to open-pit mine ore loading. With technological advancements, intelligentization, electrification, and greening have become new trends in the development of construction machinery, continuously propelling the industry to higher levels and injecting strong momentum into the global engineering construction industry.

[0003] In actual operation of construction machinery, frequent and prolonged tilt and telescopic adjustments can easily lead to cumulative errors in operating parameters. Parameters such as the total telescopic length, operating height, and operating radius of construction machinery directly affect the safety and accuracy of operations. Therefore, a complete detection structure is urgently needed for real-time monitoring. At the same time, how to achieve non-destructive installation of the detection structure on construction machinery and significantly reduce installation difficulty has become a pressing technical challenge for the industry. This not only concerns the promotion and application of the detection structure but also affects the progress of intelligent and precise development of construction machinery. Utility Model Content

[0004] This device provides a limit detection device for engineering machinery, and the specific implementation method is as follows:

[0005] A single-axis tilt sensor used to detect the expansion and contraction of engineering machinery;

[0006] Multi-turn encoders used to detect the rotation angle of construction machinery;

[0007] The controller has its signal input terminals electrically connected to a single-axis tilt sensor and a multi-turn encoder, and its signal output terminals electrically connected to an audible and visual alarm and a signal transceiver module.

[0008] Both the single-axis tilt sensor and the multi-turn encoder are externally mounted on the construction machinery, and the single-axis tilt sensor is connected to the surface of the construction machinery through the mounting structure.

[0009] The mounting structure comprises a seat body, a single-shaft inclination sensor is arranged at the front of the seat body, a plurality of magnetic suction disc members are slidingly arranged at the back of the seat body, each sliding driving part is connected to a screwing member through a distance adjusting transmission member, a locking structure is arranged at the screwing member, and the magnetic suction disc members are controlled to extend and be attached to the surface of the engineering machinery through the screwing member.

[0010] Preferably, the power supply module is further connected with the controller, the single-shaft inclination sensor, the multi-turn encoder, the audible and visual alarm and the signal transceiver module.

[0011] Based on the above technical scheme, in order to effectively solve the parameter monitoring problem of the engineering machinery, the multi-turn encoder and the single-shaft inclination sensor are used to cooperate, the multi-turn encoder captures the change of the boom extension length, the single-shaft inclination sensor senses the dynamic boom inclination in real time, and the data collected by the two is transmitted to the controller synchronously; through the intelligent operation and analysis of the controller, the high-precision real-time monitoring of the total length of the boom extension, the working height and the working radius of the engineering machinery is realized, and once the monitoring value approaches or exceeds the limited range, the early warning mechanism is triggered immediately.

[0012] Preferably, a third mounting groove is arranged at the back of the seat body, and a first mounting groove and a second mounting groove are arranged side by side at the front of the seat body; a distance adjusting transmission member and a single-shaft inclination sensor are arranged in sequence in the first mounting groove, and the two are arranged separately through a partition plate.

[0013] Preferably, the distance adjusting transmission member comprises a sprocket connected to the end of the magnetic suction disc member, the sprocket is provided in pairs, and the two sprockets are connected through a chain; any sprocket is coaxially connected with a first gear, and the screwing member is coaxially connected with a second gear, the second gear penetrates into the second mounting groove and is engaged with the first gear.

[0014] Preferably, the screwing member comprises a dial, a positioning groove is arranged at the second mounting groove, and the dial is radially slidingly provided with a clamping column inserted into the positioning groove.

[0015] Based on the above technical scheme, the sprocket and the magnetic suction disc member are directly connected in axial sliding mode, and the magnetic suction disc member is also threadedly connected to the third mounting groove, so that when the sprocket drives the magnetic suction disc member to rotate, the magnetic suction disc member can be axially pushed out relative to the seat body through the thread.

[0016] Preferably, the magnetic suction disc member comprises a threaded column and a magnetic column arranged coaxially, and a suction disc is arranged at the outer circle of the magnetic column.

[0017] Preferably, a pushing auxiliary member is slidingly arranged outside the two sides of the third mounting groove, and an inclined surface guide structure for unlocking the suction disc is arranged between the pushing auxiliary member and the magnetic suction disc member.

[0018] Preferably, a reducing column is arranged between the threaded column and the magnetic column, the threaded column and the reducing column are in sliding connection, and a spring is arranged at the connection position.

[0019] Based on the above technical scheme, the magnetic column can be an electromagnet with axial arrangement of magnetic poles, and the suction force of the suction cup still exists when the electromagnet loses magnetism; by pressing the pushing auxiliary member inward, the magnetic column and the reducing column are axially moved relative to the threaded column, thereby stimulating the suction cup to be unlocked.

[0020] Preferably, a permanent magnet rotating disc is arranged at the bottom of the third mounting groove, a rack is engaged with the rotating shaft of the permanent magnet rotating disc through a gear, and the rack penetrates out of the third mounting groove; the two magnetic columns have opposite magnetic properties, the permanent magnet rotating disc faces the inner end surfaces of the two magnetic columns, and the magnetic poles of the permanent magnet rotating disc are distributed on the left and right sides.

[0021] Based on the above technical scheme, the cooperation principle between the permanent magnet rotating disc and the two magnetic columns with opposite magnetic properties is similar to that of the permanent magnet lifter, and the generation and disappearance of the overall magnetic force are controlled by rotating the permanent magnet rotating disc.

[0022] In summary, the present application has the following beneficial technical effects:

[0023] 1. In the utility model, the multi-turn encoder and the single-axis inclination sensor are arranged to measure the extension and retraction of the large arm and the inclination angle of the large arm, and the controller is used to realize real-time detection of the total length of the extension and retraction of the large arm of the engineering machinery, the working height and the working radius, so as to prevent the above parameters from exceeding the limited range;

[0024] 2. The utility model has the advantages of simple structure, and realizes real-time remote monitoring of the state of the engineering machinery through the sound and light Internet of Things and the alarm, and the alarm can be triggered in time when the working range exceeds the safety limit range;

[0025] 3. The utility model realizes stable installation of the single-axis inclination sensor on the large arm through the screwing part, the distance adjusting transmission part and the magnetic suction disc part, and the pushing auxiliary member can be used to quickly unlock the suction cup in the magnetic suction disc part. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram under the application of the utility model;

[0027] Figure 2 is an electrical schematic diagram of the utility model;

[0028] Figure 3 is a structural schematic diagram of the utility model;

[0029] Figure 4 is an exploded structural schematic diagram of the utility model;

[0030] Figure 5Is the back structure schematic diagram of the utility model;

[0031] Figure 6 Is the structure of the utility model section view;

[0032] Figure 7 Is the structure schematic diagram of the utility model push pressure auxiliary part and magnetic chuck part;

[0033] Figure 8 Is the structure schematic diagram of the utility model magnetic chuck part;

[0034] Figure 9 Is the schematic diagram of the utility model application under the crane, excavator carries out integral limit detection.

[0035] Mark explanation:

[0036] 1, seat body, 2, push pressure auxiliary part, 3, screw part, 4, distance adjustment transmission part, 5, magnetic chuck part, 6, permanent magnet rotary disc, 7, rack, 10, vehicle body, 11, big arm, 12, small arm, 13, telescopic air arm, 14, multi-turn encoder, 15, single-axis inclination sensor, 16, controller, 17, audible and visual alarm, 101, first installation groove, 102, second installation groove, 103, partition, 104, third installation groove, 105, positioning groove, 201, pressure contact block, 202, inclined guide block, 301, dial, 302, clamping column, 401, chain, 402, chain wheel, 403, first gear, 404, second gear, 501, magnetic column, 502, variable diameter column, 503, threaded column, 504, spring, 505, chuck. Specific implementation

[0037] The specific implementation of the utility model is described below in combination with the drawings and examples:

[0038] It should be noted that the structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the implementation conditions of the utility model. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the functions and purposes of the utility model, should still fall within the scope of the disclosed technology.

[0039] At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" in the present specification are only for the convenience of clear description, and are not used to limit the scope of the utility model. The change or adjustment of relative relationship, without substantial change of technical content, is also considered as the implementation scope of the utility model.

[0040] The following describes the utility model in combination with the drawings and examples: Figures 1-9The application is further described in detail.

[0041] The application discloses a position-limiting detection device for engineering machinery.

[0042] Embodiment 1

[0043] Reference Figures 1 to 3 And Figure 9 The application discloses a position-limiting detection device for engineering machinery, which comprises a controller 16, a single-axis tilt sensor 15 for detecting the telescopic amount of the engineering machinery and a multi-turn encoder 14 for detecting the rotating angle of the engineering machinery. In the structure, the signal input end of the controller 16 is electrically connected to the single-axis tilt sensor 15 and the multi-turn encoder 14, the signal output end of the controller 16 is electrically connected to an audible and visual alarm 17 and a signal transceiver module, the single-axis tilt sensor 15 and the multi-turn encoder 14 are both externally mounted on the engineering machinery, and the single-axis tilt sensor 15 is connected to the surface of the engineering machinery through a mounting structure.

[0044] The power supply module is connected to the controller 16, the single-axis tilt sensor 15, the multi-turn encoder 14, the audible and visual alarm 17 and the signal transceiver module. The controller 16 is a PLC all-in-one machine, which communicates with an Internet of Things platform through a DTU, uploads system settings, parameter settings, real-time data and running states, and downloads system settings, parameter settings, real-time data and instructions.

[0045] When the position-limiting detection is performed on the crane, the initial value of the jib is L0, and the initial height is H0; the circumference coefficient The multi-turn encoder 14 measures the number of turns X, the single-axis tilt sensor 15 measures the jib angle a, and the total length of the jib The defined working radius is:

[0046] R = L0 * cos a;

[0047] The defined working height is:

[0048] H = L * sin a + H0.

[0049] When the position-limiting detection is performed on the excavator, the length of the boom is L1, the length of the dipper arm is L2, and the initial height is H0; the single-axis tilt sensor 15 at the boom measures the angle a1, and the single-axis tilt sensor 15 at the dipper arm measures the angle a2, and the defined working height is:

[0050] H = H0 + L1 * sin a1 + L2 * sin a2;

[0051] The defined working radius is:

[0052] L = L1 * cos a1 + L2 * cos a2.

[0053] The engineering machinery comprises a vehicle body 10, a large arm 11 is arranged on the vehicle body 10 and rotates, a telescopic air arm 13 is arranged at the rotating position, and the large arm 11 is slidably connected with a small arm 12, a rack and a driving wheel are arranged at the sliding position, a multi-turn encoder 14 is coaxially connected with the driving wheel, and a single-axis inclination sensor 15 is attached to the large arm 11 and directly detects the inclination angle of the large arm 11.

[0054] Embodiment 2

[0055] With reference to Figures 3 to 7 , based on embodiment 1, the embodiment also discloses a limiting detection device for engineering machinery, and the mounting structure comprises a seat body 1, a single-axis inclination sensor 15 is arranged at the front part of the seat body 1, a plurality of magnetic suction disc pieces 5 are slidably arranged at the back part of the seat body 1, each sliding driving part is connected with a screwing piece 3 through a distance adjusting transmission piece 4, a locking structure is arranged at the screwing piece 3, and the screwing piece 3 is used for controlling the extension of each magnetic suction disc piece 5 and the suction on the surface of the engineering machinery.

[0056] A third mounting groove 104 is arranged at the back part of the seat body 1, a first mounting groove 101 and a second mounting groove 102 are arranged in parallel at the front part of the seat body 1, a distance adjusting transmission piece 4 and a single-axis inclination sensor 15 are sequentially arranged in the first mounting groove 101, and the distance adjusting transmission piece 4 and the single-axis inclination sensor 15 are arranged in a separated mode through a partition plate 103.

[0057] The distance adjusting transmission piece 4 comprises a chain wheel 402 connected with the end part of the magnetic suction disc piece 5, a pair of chain wheels 402 are arranged, the chain wheels 402 are connected through a chain 401, any chain wheel 402 is coaxially connected with a first gear 403, the screwing piece 3 is coaxially connected with a second gear 404, the second gear 404 penetrates into the second mounting groove 102 and is engaged with the first gear 403.

[0058] The screwing piece 3 comprises a dial 301, a positioning groove 105 is arranged at the second mounting groove 102, and the dial 301 is radially slidably provided with a clamping column 302 which is inserted into the positioning groove 105.

[0059] Embodiment 3

[0060] With reference to Figures 3 to 7 , based on embodiment 1, the embodiment also discloses a limiting detection device for engineering machinery, and the magnetic suction disc piece 5 comprises a threaded column 503 and a magnetic column 501 which are arranged in a coaxial mode, the magnetic column 501 is an electromagnet, a suction disc 505 is arranged at the outer ring of the magnetic column 501, a pushing auxiliary piece 2 is slidably arranged at the two sides of the third mounting groove 104, an inclined surface guide structure for unlocking the suction disc 505 is arranged between the pushing auxiliary piece 2 and the magnetic suction disc piece 5, a variable-diameter column 502 is arranged between the threaded column 503 and the magnetic column 501 in the structure, the threaded column 503 and the variable-diameter column 502 are slidably connected, a spring 504 is arranged at the connecting position, the pushing auxiliary piece 2 comprises a pressure contact block 201, and an inclined guide block 202 which acts on the variable-diameter column 502 is arranged at the end of the pressure contact block 201.

[0061] The specific implementation process is: the single-axis inclination sensor 15 is placed in the first mounting groove 101, the seat body 1 is adjusted in angle, then the screw member 3 is screwed, the screw member 3 is driven by the distance adjusting transmission member 4 to each magnetic suction disc member 5; the magnetic suction disc member 5 is exposed relative to the third mounting groove 104, the suction disc 505 is attracted to the large arm 11, and the magnetic column 501 is magnetically attracted to the large arm 11.

[0062] When disassembly is needed, the magnetic column 501 is demagnetized; the two sides press the auxiliary pushing member 2, so that the magnetic suction disc member 5 is displaced inward, and then the suction disc 505 is moved, the suction force is lost, and the disassembly is completed.

[0063] Embodiment 4

[0064] Referring to Figure 5 Based on the embodiment 1, the embodiment further discloses a limiting detection device for engineering machinery, the third mounting groove 104 is rotationally provided with a permanent magnet rotating disc 6, and a rack 7 is engaged with the gear through the rotating shaft, the rack 7 penetrates out of the third mounting groove 104, the two magnetic columns 501 are opposite in magnetism, the permanent magnet rotating disc 6 faces the inner end surface of the two magnetic columns 501, and the magnetic poles of the permanent magnet rotating disc 6 are distributed left and right.

[0065] The specific implementation process is: when the suction and installation are performed, the rack 7 is pushed down, the permanent magnet rotating disc 6 is flipped, the permanent magnet rotating disc 6 is magnetically corresponding to the two magnetic columns 501 as permanent magnets, and the whole surface of the large arm 11 generates a strong magnetic attraction force; when disassembly is needed, the rack 7 is pushed up, the permanent magnet rotating disc 6 is flipped by 180° in reverse, and the whole magnetic attraction force is disturbed, so that the magnetic attraction force to the surface of the large arm 11 is lost.

[0066] Many other changes and modifications can be made without departing from the concept and scope of the present application. It should be understood that the present application is not limited to the specific embodiments, and the scope of the present application is defined by the appended claims.

Claims

1. A limit detection device for engineering machinery, characterized in that, include: A single-axis tilt sensor (15) for detecting the extension and retraction of engineering machinery. A multi-turn encoder (14) for detecting the rotation angle of engineering machinery. The controller (16) has its signal input terminal electrically connected to the single-axis tilt sensor (15) and the multi-turn encoder (14), and its signal output terminal electrically connected to the audible and visual alarm (17) and the signal transceiver module. The single-axis tilt sensor (15) and the multi-turn encoder (14) are used together to detect the working height and working radius of the construction machinery. Both the single-axis tilt sensor (15) and the multi-turn encoder (14) are externally mounted on the engineering machinery, and the single-axis tilt sensor (15) is connected to the surface of the engineering machinery through the mounting structure. The mounting structure includes a base (1), the single-axis tilt sensor (15) is located at the front of the base (1), and a number of magnetic suction cups (5) are slidably provided on the back of the base (1). Each sliding drive part is externally connected to the screwing part (3) through the pitch transmission part (4). The screwing part (3) is provided with a locking structure. The screwing part (3) controls each of the magnetic suction cups (5) to extend and attract to the surface of the engineering machinery.

2. The limit detection device for engineering machinery according to claim 1, characterized in that, It also includes a power supply module, which is connected to the controller (16), the single-axis tilt sensor (15), the multi-turn encoder (14), the audible and visual alarm (17), and the signal transceiver module.

3. The limit detection device for engineering machinery according to claim 2, characterized in that, The back of the seat (1) is provided with a third mounting groove (104), and the front of the seat (1) is provided with a first mounting groove (101) and a second mounting groove (102) in parallel. The first mounting slot (101) is provided with the pitch transmission component (4) and the single-axis tilt sensor (15) in sequence, and the two are separated by a partition (103).

4. The limit detection device for engineering machinery according to claim 3, characterized in that, The adjustable transmission component (4) includes a sprocket (402) connected to the end of the magnetic chuck component (5). The sprocket (402) is provided in pairs and the two sprockets (402) are connected by a chain (401). Each of the sprockets (402) is coaxially connected to a first gear (403), and the screwing member (3) is coaxially connected to a second gear (404). The second gear (404) passes through the second mounting groove (102) and meshes with the first gear (403).

5. A limit detection device for engineering machinery according to claim 4, characterized in that, The screwing component (3) includes a dial (301), and a positioning groove (105) is provided at the second mounting groove (102). The dial (301) is radially slidably provided with a snap-fit ​​post (302) that inserts into the positioning groove (105).

6. The limit detection device for engineering machinery according to claim 5, characterized in that, The magnetic chuck component (5) includes a threaded post (503) and a magnetic post (501) arranged coaxially, and a chuck (505) is provided on the outer ring of the magnetic post (501).

7. A limit detection device for engineering machinery according to claim 6, characterized in that, The third mounting groove (104) has a pushing auxiliary component (2) that slides outward on both sides. The pushing auxiliary component (2) and the magnetic suction cup component (5) are provided with a sloping guide structure for unlocking the suction cup (505).

8. A limit detection device for engineering machinery according to claim 7, characterized in that, A variable diameter post (502) is provided between the threaded post (503) and the magnetic post (501), and the threaded post (503) and the variable diameter post (502) are slidably connected, and a spring (504) is provided at the connection point. The pushing auxiliary component (2) includes a pressing block (201), and the end of the pressing block (201) is provided with an inclined guide block (202) that acts on the variable diameter column (502).

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