Gear tooth clearance detection device

Abstract

The utility model relates to the technical field of detection devices, in particular to a gear tooth clearance detection device which comprises a workbench, the upper surface of the workbench is rotatably connected with a gear placing table, the gear placing table is provided with a fixing assembly, and the upper surface of the workbench is provided with a detection platform. A detection supporting rod is slidably connected to the upper surface of the detection platform, a detection assembly is arranged at one end of the detection supporting rod, and a PLC is arranged on the workbench. According to the utility model, the thin film pressure sensor, the PLC controller and the detection assembly are arranged, so that the change of the tooth clearance of the gear can be more directly and accurately tested, real-time feedback can be realized, and the detection efficiency and the detection effect of the tooth clearance of the gear are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a gear tooth clearance detection device. Background Art

[0002] Gears are a very common mechanical component, usually used in pairs and groups, and are mostly used for transmission between machines.

[0003] In the prior art, gears have different specifications during manufacturing due to the different applicable mechanical parts, including the number of teeth and pitch, which have corresponding standards. In order to ensure that the gears can transmit normally, it is very necessary to perform qualified inspection for the gear tooth clearance. Common inspection techniques are mostly lead wire pressure inspection methods. The specific operation is to use lead wire to press the inspection position on the gear, then place the sliding pointer of the measuring instrument on the lead wire, and then pull out the lead wire. The value displayed by the measuring instrument is the tooth side clearance. Finally, a comparison is performed to obtain the tooth clearance. However, the gear is composed of multiple teeth, and this method is too inefficient. Therefore, a gear tooth clearance detection device is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a gear tooth clearance detection device to solve the problem of low efficiency of detecting gear tooth clearance by using a lead wire pressing method proposed in the above background technology.

[0005] The technical solution of the utility model is: a gear tooth clearance detection device, comprising a workbench, the upper surface of the workbench is rotatably connected to a gear placement table, a fixing component is arranged on the gear placement table, a detection platform is arranged on the upper surface of the workbench, the upper surface of the detection platform is slidably connected to a detection support rod, a detection component is arranged at one end of the detection support rod, and a PLC controller is arranged on the workbench.

[0006] Preferably, the fixing assembly includes a mounting block fixedly connected to the inner wall of the gear placement platform, the inner wall of the mounting block is fixedly connected with a bidirectional threaded screw, one side of the gear placement platform is rotatably connected with a fixing button, and the fixing button is coaxially fixed with the bidirectional threaded screw.

[0007] Preferably, the fixing assembly also includes two fixing plates, both of which are threadedly connected to the bidirectional threaded screw, and a rotating motor is fixedly connected to the lower surface of the workbench, and the output shaft of the rotating motor is fixedly connected to the lower surface of the gear placement table, and the rotating motor is electrically connected to the PLC controller.

[0008] Preferably, the detection assembly includes a detection plate rotatably connected to one end of the detection support rod, a film pressure sensor is fixedly connected to one side of the detection plate, the film pressure sensor is electrically connected to the PLC controller, and a servo electric push rod is fixedly connected to the upper surface of the detection platform, the output end of the servo electric push rod is fixedly connected to one end of the detection support rod, and the servo electric push rod is electrically connected to the PLC controller.

[0009] Preferably, the detection assembly further comprises a support column fixedly connected to one side of the detection support rod, the inner wall of the support column is slidably connected with a retractable column, and one end of the retractable column is rotatably connected to the other side of the detection plate.

[0010] Preferably, a contraction spring is fixedly connected to the inner wall of the support column, and one end of the contraction spring is fixedly connected to the other end of the contraction column.

[0011] The utility model provides a gear tooth clearance detection device through improvement, which has the following improvements and advantages compared with the prior art:

[0012] Firstly, the utility model can test the change of gear tooth clearance more directly and accurately by setting a thin film pressure sensor, a PLC controller and a detection component, and can provide real-time feedback, thereby improving the detection efficiency and detection effect of gear tooth clearance;

[0013] Secondly, the utility model can detect the different gear teeth of the entire gear by setting up a gear placement platform and a fixing component, and the fixing component is adjustable to adapt to gears of different sizes in the inner ring, further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a main structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the gear placement platform of the utility model;

[0017] Figure 3 It is a schematic diagram of the plane structure of the detection component of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal (section) structure of the support column of the utility model.

[0019] Description of reference numerals:

[0020] 1. Workbench; 2. Gear placement table; 3. Fixing assembly; 301. Mounting block; 302. Bidirectional threaded screw; 303. Fixing button; 304. Fixing plate; 305. Rotating motor; 4. Detection platform; 5. Detection support rod; 6. Detection assembly; 601. Detection plate; 602. Thin film pressure sensor; 603. Servo electric push rod; 604. Support column; 605. Retraction column; 606. Retraction spring; 7. PLC controller. DETAILED DESCRIPTION

[0021] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides a gear tooth clearance detection device through improvement. The technical solution of the utility model is: Figure 1-Figure 4 As shown: a gear tooth clearance detection device includes a workbench 1, the upper surface of the workbench 1 is rotatably connected to a gear placement table 2, a fixing component 3 is arranged on the gear placement table 2, a detection platform 4 is arranged on the upper surface of the workbench 1, a detection support rod 5 is slidably connected to the upper surface of the detection platform 4, a detection component 6 is arranged at one end of the detection support rod 5, and a PLC controller 7 is arranged on the workbench 1.

[0023] Furthermore, the fixing component 3 includes a mounting block 301 fixedly connected to the inner wall of the gear placement platform 2, a bidirectional threaded screw 302 is fixedly connected to the inner wall of the mounting block 301, and a fixing button 303 is rotatably connected to one side of the gear placement platform 2, and the fixing button 303 is coaxially fixed with the bidirectional threaded screw 302.

[0024] Furthermore, the fixing assembly 3 also includes two fixing plates 304, both of which are threadedly connected to the bidirectional threaded screw 302, and a rotating motor 305 is fixedly connected to the lower surface of the workbench 1, and the output shaft of the rotating motor 305 is fixedly connected to the lower surface of the gear placement table 2, and the rotating motor 305 is electrically connected to the PLC controller 7.

[0025] By means of the above structure or mechanism: when detecting the gear tooth gap, since each gear tooth needs to be detected, the device uses a rotating motor 305 to rotate it, and uses a fixing component 3 to prevent the gear from shifting during the rotation process and always stay in the center position.

[0026] Furthermore, the detection component 6 includes a detection plate 601 rotatably connected to one end of the detection support rod 5, a film pressure sensor 602 is fixedly connected to one side of the detection plate 601, and the film pressure sensor 602 is electrically connected to the PLC controller 7. A servo electric push rod 603 is fixedly connected to the upper surface of the detection platform 4, and an output end of the servo electric push rod 603 is fixedly connected to one end of the detection support rod 5, and the servo electric push rod 603 is electrically connected to the PLC controller 7.

[0027] Furthermore, the detection assembly 6 also includes a support column 604 fixedly connected to one side of the detection support rod 5, and the inner wall of the support column 604 is slidably connected with a contraction column 605, and one end of the contraction column 605 is rotatably connected to the other side of the detection plate 601.

[0028] Furthermore, a contraction spring 606 is fixedly connected to the inner wall of the support column 604 , and one end of the contraction spring 606 is fixedly connected to the other end of the contraction column 605 .

[0029] By means of the above structure or mechanism: This device uses a thin film pressure sensor 602 for testing. Assuming that the gap between each gear tooth is equal and correct, the pressure displayed by the thin film pressure sensor 602 when in contact with the gear teeth and the pressure change readings should be the same. If the gap between the gear teeth is different, the data obtained will change and will be reflected on the PLC controller 7, which is more intuitive and accurate.

[0030] Working principle: When the gear tooth clearance detection device is used, the user places the gear to be detected as shown in the attached figure of the specification, places the gear center ring on both sides of the fixed plate 304, and rotates the fixing button 303. The fixing button 303 drives the bidirectional threaded screw 302 to rotate, so that the two fixing plates 304 squeeze the inner ring surface of the gear from the inside to the outside, so that the gear always maintains the center state. At this time, the servo electric push rod 603 is started, and the servo electric push rod 603 pushes the detection support rod 5 and makes the film pressure sensor 602 contact with both sides of the gear teeth, and the data signal is obtained and sent to the PLC controller 7 to confirm. After confirmation, the PLC controller 7 sends a signal to retract the servo electric push rod 603 and rotate the rotary motor 305 by a certain angle so that the gear teeth to be tested next time are aligned (the angle of each rotation can be obtained based on the number of gear teeth, and the rotary motor 305 is a servo motor), and then the servo electric push rod 603 is started again, and the above steps are repeated for testing. When there are different gear tooth gaps, the obtained data will change and will be reflected on the PLC controller 7. At this time, the PLC will send a signal to stop the entire device, and the staff can directly inspect or replace the gears.

Claims

1. A gear tooth clearance detection device, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is rotatably connected to a gear placement platform (2), a fixing component (3) is provided on the gear placement platform (2), a detection platform (4) is provided on the upper surface of the workbench (1), a detection support rod (5) is slidably connected to the upper surface of the detection platform (4), a detection component (6) is provided at one end of the detection support rod (5), and a PLC controller (7) is provided on the workbench (1).

2. A gear tooth clearance detection device according to claim 1, characterized in that: The fixing assembly (3) comprises a mounting block (301) fixedly connected to the inner wall of the gear placement platform (2); a bidirectional threaded screw (302) is fixedly connected to the inner wall of the mounting block (301); a fixing button (303) is rotatably connected to one side of the gear placement platform (2); and the fixing button (303) is coaxially fixed to the bidirectional threaded screw (302).

3. A gear tooth clearance detection device according to claim 1, characterized in that: The fixing assembly (3) further comprises two fixing plates (304), both of which are threadedly connected to the bidirectional threaded screw (302); a rotating motor (305) is fixedly connected to the lower surface of the workbench (1); an output shaft of the rotating motor (305) is fixedly connected to the lower surface of the gear placement platform (2); and the rotating motor (305) is electrically connected to the PLC controller (7).

4. A gear tooth clearance detection device according to claim 1, characterized in that: The detection assembly (6) comprises a detection plate (601) rotatably connected to one end of the detection support rod (5); a thin film pressure sensor (602) is fixedly connected to one side of the detection plate (601); the thin film pressure sensor (602) is electrically connected to the PLC controller (7); a servo electric push rod (603) is fixedly connected to the upper surface of the detection platform (4); an output end of the servo electric push rod (603) is fixedly connected to one end of the detection support rod (5); and the servo electric push rod (603) is electrically connected to the PLC controller (7).

5. The gear tooth clearance detection device according to claim 1, characterized in that: The detection assembly (6) further comprises a support column (604) fixedly connected to one side of the detection support rod (5), the inner wall of the support column (604) being slidably connected to a contraction column (605), one end of the contraction column (605) being rotatably connected to the other side of the detection plate (601).

6. A gear tooth clearance detection device according to claim 5, characterized in that: A contraction spring (606) is fixedly connected to the inner wall of the support column (604), and one end of the contraction spring (606) is fixedly connected to the other end of the contraction column (605).

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