Oil cylinder stroke detection mechanism

Abstract

The utility model discloses an oil cylinder stroke detection mechanism, which comprises a linear guide rail base and a pull rod body, and further comprises a moving mechanism used for moving the position of the pull rod body; mounting seats are mounted on the two sides of the outer wall of the top of the linear rail base, synchronous wheels are arranged on the inner walls of the mounting seats, the same synchronous belt is connected between the two synchronous wheels, the synchronous belt is used in cooperation with the pull rod body, a motor is arranged on the outer wall of one side of one mounting seat, and a motor is arranged on the outer wall of the other side of one mounting seat. One end of an output shaft of the motor is connected with one synchronous wheel, an encoder is arranged on the outer wall of one side of the other mounting base, and an inductive sensor is arranged in the encoder. According to the oil cylinder stroke detection mechanism disclosed by the utility model, the movement process of the pull rod is detected through the cooperative use of the inductive sensor and the encoder, a more comprehensive and accurate measurement result is provided, and the accuracy and the reliability of oil cylinder stroke detection are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder stroke detection, in particular to an oil cylinder stroke detection mechanism. Background Art

[0002] Oil cylinder, generally refers to hydraulic cylinder, which is the actuator in the hydraulic system, mainly used to convert hydraulic energy into mechanical energy, driving the working mechanism to do linear reciprocating or rotation (swing) motion. Oil cylinder has the characteristics of simple structure and reliable operation, and is widely used in various mechanical hydraulic systems.

[0003] The patent document with application number 202022202131.1 discloses a cylinder structure with stroke detection. The cylinder structure with stroke detection includes a cylinder barrel and a piston rod movably arranged in the cylinder barrel, and is characterized in that it also includes a block and a guide rod that match the position of the sensing device for detecting the stroke of the cylinder, the cylinder barrel is provided with a first flange, the piston rod is provided with a second flange, and the second flange is located on the outside of the cylinder barrel; the first flange is provided with a guide hole, the guide rod passes through the guide hole, and the two ends of the guide rod are respectively connected to the second flange and the block.

[0004] However, when a conventional oil cylinder stroke detection mechanism is used, the stroke detection is performed by the distance that the oil cylinder piston rod is extended and retracted, which is prone to errors in calculation and has low accuracy. Utility Model Content

[0005] The utility model discloses an oil cylinder stroke detection mechanism, aiming to solve the technical problem that when a traditional oil cylinder stroke detection mechanism is used, stroke detection is performed through the distance of extension and retraction of an oil cylinder piston rod, errors are easily generated through calculation, and the accuracy is not high.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cylinder stroke detection mechanism includes a linear rail base and a pull rod body, and also includes:

[0008] Moving mechanism: used to move the position of the pull rod body;

[0009] Mounting seats are installed on both sides of the outer wall at the top of the linear rail base, and synchronous wheels are provided on the inner walls of the mounting seats. The same synchronous belt is connected between the two synchronous wheels, and the synchronous belt is used in conjunction with the pull rod body. A motor is provided on the outer wall of one side of the mounting seat, and one end of the motor output shaft is connected to one of the synchronous wheels. An encoder is provided on the outer wall of one side of the other mounting seat, and an inductive sensor is provided inside the encoder.

[0010] In this solution, the synchronous wheels are driven by a motor. Under the action of the synchronous belt, the two synchronous wheels rotate to drive the synchronous belt to rotate forward and reverse, so that the position of the pull rod body changes. During the movement, the encoder cooperates with the inductive sensor to detect the stroke of the cylinder. The inductive sensor and encoder can obtain the stroke data of the cylinder from different angles and methods, thereby providing more comprehensive and accurate measurement results, and further improving the accuracy and reliability of stroke detection.

[0011] In a preferred solution, the moving mechanism includes a slide groove opened on the top outer wall of the linear rail base, a slide rail is provided on the inner wall of the slide groove, a slider is slidably connected to the inner wall of the slide rail, a fixed platform is provided on the outer wall of the linear rail base on one side close to the encoder, a pull rod seat is connected to the top outer wall of the slider, the pull rod body passes through the fixed platform and is connected to the pull rod seat, two locking belts are provided on the top outer wall of the pull rod seat, and the synchronous belt is located inside the two locking belts.

[0012] By adopting the above technical solution, the slider slides on the slide rail, and under the transmission action of the synchronous belt, the pull rod seat connected to the slider is driven to move, so that the pull rod body on the pull rod seat moves. The locking belt makes the synchronous belt and the pull rod seat move at the same time and can also limit the synchronous belt in the middle, so that the rotation process is more stable, the position is not easy to move, and the linkage effect is good.

[0013] As can be seen from the above, a cylinder stroke detection mechanism includes a linear rail base and a pull rod body, and also includes:

[0014] Moving mechanism: used to move the position of the pull rod body;

[0015] Mounting seats are installed on both sides of the outer wall at the top of the linear rail base, and synchronous wheels are arranged on the inner wall of the mounting seats. The same synchronous belt is connected between the two synchronous wheels, and the synchronous belt is used in conjunction with the pull rod body. A motor is arranged on the outer wall of one side of the mounting seat, and one end of the motor output shaft is connected to one of the synchronous wheels. An encoder is arranged on the outer wall of one side of the other mounting seat, and an inductive sensor is arranged inside the encoder. The oil cylinder stroke detection mechanism provided by the utility model detects the movement process of the pull rod through the coordinated use of the inductive sensor and the encoder, provides more comprehensive and accurate measurement results, and further improves the accuracy and reliability of the oil cylinder stroke detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of an oil cylinder stroke detection mechanism.

[0017] Figure 2 The utility model is a schematic diagram of the internal structure of a protective cover of an oil cylinder stroke detection mechanism.

[0018] Figure 3 The utility model is a schematic diagram of the encoder structure of a cylinder stroke detection mechanism.

[0019] Figure 4 The utility model is a schematic diagram of the linear rail base structure of a cylinder stroke detection mechanism.

[0020] In the attached figure: 1. Linear rail base; 2. Protective cover; 3. Fixed platform; 4. Pull rod body; 5. Mounting seat; 6. Motor; 7. Synchronous wheel; 8. Synchronous belt; 9. Encoder; 10. Slider; 11. Pull rod seat; 12. Locking belt; 13. Slide groove; 14. Slide rail. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0022] The oil cylinder stroke detection mechanism disclosed by the utility model is mainly applied to the scenario where the traditional oil cylinder stroke detection mechanism is used, and the stroke detection is performed through the extension and retraction distance of the oil cylinder piston rod, and errors are easily generated through calculation, and the accuracy is not high.

[0023] Reference Figure 1 , Figure 2 and Figure 3 , a cylinder stroke detection mechanism, comprising a linear rail base 1 and a pull rod body 4, and also comprising:

[0024] Moving mechanism: used to move the position of the pull rod body 4;

[0025] Mounting seats 5 are fixedly installed on both sides of the outer wall at the top of the linear rail base 1, and synchronous wheels 7 are provided on the inner walls of the mounting seats 5. The same synchronous belt 8 is connected between the two synchronous wheels 7, and the synchronous belt 8 is used in conjunction with the pull rod body 4. A motor 6 is provided on the outer wall of one side of a mounting seat 5, and one end of the output shaft of the motor 6 is connected to a synchronous wheel 7. An encoder 9 is provided on the outer wall of one side of the other mounting seat 5, and an inductive sensor is provided inside the encoder 9.

[0026] In the specific working process, the motor 6 is started, and the motor 6 drives the synchronous wheel 7 on one side to rotate. Under the action of the synchronous belt 8, the two synchronous wheels 7 rotate synchronously, and the synchronous belt 8 can be driven to rotate forward and reverse, thereby changing the position of the pull rod body 4. During the movement, the encoder 9 cooperates with the inductive sensor to detect the position of the pull rod body 4, and then detects the stroke of the cylinder.

[0027] Among them, the inductive sensor is set as a cylindrical metal sensing surface type. The cylindrical metal sensing surface type inductive sensor is mainly used to detect the position changes of metal parts or pistons inside the cylinder, and generate corresponding electrical signals through the principle of electromagnetic induction. These electrical signals can be combined with the data of the encoder 9 to verify and calibrate the stroke data and provide more accurate position and status information.

[0028] Among them, the encoder 9 and the inductive sensor are used in conjunction with the pull rod body 4. The encoder 9 and the inductive sensor detect the displacement of the pull rod body 4, provide more accurate and comprehensive stroke data, and improve the reliability and efficiency of the cylinder operation.

[0029] It should be noted that when using the cylindrical metal sensing surface type inductive sensor and encoder 9 for cylinder stroke detection, ensure the calibration and maintenance of both. In actual use, confirm the accuracy of the signal interface and communication protocol between them to ensure that the data can be correctly transmitted and processed. By comparing and analyzing the data of the inductive sensor and encoder 9, abnormal conditions or faults can be discovered in time, which helps to detect and diagnose faults.

[0030] Reference Figure 2 and Figure 4 In a preferred embodiment, the moving mechanism includes a slide groove 13 opened on the top outer wall of the linear rail base 1, a slide rail 14 is provided on the inner wall of the slide groove 13, a slider 10 is slidably connected to the inner wall of the slide rail 14, a fixed platform 3 is provided on the outer wall of the linear rail base 1 on one side close to the encoder 9, a pull rod seat 11 is fixedly connected to the top outer wall of the slider 10, the pull rod body 4 passes through the fixed platform 3 and is connected to the pull rod seat 11, two locking belts 12 are fixedly connected to the top outer wall of the pull rod seat 11, and the synchronous belt 8 is located inside the two locking belts 12.

[0031] Specifically, the slider 10 slides on the slide rail 14 in the linear rail base 1, and under the transmission action of the synchronous belt 8, the pull rod seat 11 connected to the slider 10 is driven to move, so that the pull rod body 4 on the pull rod seat 11 moves, and the locking belt 12 allows the synchronous belt 8 and the pull rod seat 11 to move simultaneously, and can also limit the synchronous belt 8 in the middle.

[0032] Reference Figure 1 and Figure 2In a preferred embodiment, a same protective cover 2 is provided on the outer walls of both sides of the linear rail base 1.

[0033] Specifically, the protective cover 2 protects the internal components and does not hinder the operation of other workpieces during the detection process. During the installation process, corresponding threaded holes are opened on the linear rail base 1 and the protective cover 2, and the linear rail base 1 and the protective cover 2 are fixed by tightening the threaded holes with screws.

[0034] Working principle: When in use, start the motor 6, the synchronous wheel 7 drives the synchronous belt 8 to rotate, and under the action of the locking belt 12, the pull rod seat 11 is driven to slide on the slide rail 14 at the same time, so that the position of the pull rod body 4 is moved, and under the cooperation of the encoder 9 and the cylindrical metal sensing surface inductive sensor, the position of the pull rod body 4 is detected, and then the stroke of the cylinder is detected.

[0035] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A cylinder stroke detection mechanism, comprising a linear rail base (1) and a pull rod body (4), characterized in that: Also includes: Moving mechanism: used for moving the position of the pull rod body (4); Mounting seats (5) are installed on both sides of the top outer wall of the linear rail base (1), and a synchronous wheel (7) is provided on the inner wall of the mounting seat (5). The same synchronous belt (8) is connected between the two synchronous wheels (7), and the synchronous belt (8) is used in conjunction with the pull rod body (4). A motor (6) is provided on the outer wall of one side of the mounting seat (5), and one end of the output shaft of the motor (6) is connected to one of the synchronous wheels (7). An encoder (9) is provided on the outer wall of one side of the other mounting seat (5), and an inductive sensor is provided inside the encoder (9).

2. The oil cylinder stroke detection mechanism according to claim 1, characterized in that: The inductive sensor is configured as a cylindrical metal sensing surface.

3. The oil cylinder stroke detection mechanism according to claim 2, characterized in that: The encoder (9) and the inductive sensor are both used in conjunction with the pull rod body (4).

4. The oil cylinder stroke detection mechanism according to claim 1, characterized in that: The moving mechanism comprises a slide groove (13) opened on the outer wall of the top of the linear rail base (1), a slide rail (14) is provided on the inner wall of the slide groove (13), and a slider (10) is slidably connected to the inner wall of the slide rail (14).

5. The oil cylinder stroke detection mechanism according to claim 4, characterized in that: A fixing platform (3) is provided on the outer wall of one side of the linear rail base (1) close to the encoder (9), a pull rod seat (11) is connected to the top outer wall of the slider (10), and the pull rod body (4) passes through the fixing platform (3) and is connected to the pull rod seat (11).

6. The oil cylinder stroke detection mechanism according to claim 5, characterized in that: Two locking belts (12) are provided on the top outer wall of the pull rod seat (11), and the synchronous belt (8) is located inside the two locking belts (12).

7. The oil cylinder stroke detection mechanism according to claim 1, characterized in that: The same protective cover (2) is provided on the outer walls of both sides of the linear rail base (1).

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