Deep hole measuring device

Abstract

The utility model discloses a deep hole measuring device, which relates to the field of measuring devices and is applied to a hydraulic oil cylinder body, a first mounting plate is arranged in the hydraulic oil cylinder body, a fixing shaft is fixedly mounted on the upper side surface of the first mounting plate, and a second mounting plate is fixedly mounted at one end of the fixing shaft. An inner circle diameter measurer, a dial indicator and a camera are fixedly installed on the side face of the second installation plate, and the inner circle diameter measurer is fixedly installed on one side of the first installation plate. According to the utility model, the inner circle diameter measurer, the dial indicator and the camera are matched with one another, so that the camera is used for monitoring the measurement data of the inner circle diameter measurer and the dial indicator in the hydraulic oil cylinder body, and external personnel can conveniently carry out detection through the display at any time; and a plurality of extension rods are assembled for use, so that a longer position for accurately positioning the size deviation can be measured.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, and in particular to a deep hole measuring device. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device and has no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] In the existing technology, when machining and repairing hydraulic cylinders, it is necessary to measure the consistency of the internal dimensions of the cylinder body. Since the cylinder body is long, the middle cannot be measured after the length exceeds 1 meter, so it is impossible to accurately grasp the internal dimensions. Therefore, a deep hole measuring device is needed to meet people's needs. Utility Model Content

[0004] The purpose of this invention is to provide a deep hole measuring device to solve the problem of inaccurate internal dimensions mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deep hole measuring device applied to a hydraulic cylinder body. A mounting plate one is arranged inside the hydraulic cylinder body. A fixed shaft is fixedly mounted on the upper side of the mounting plate one. A mounting plate two is fixedly mounted on one end of the fixed shaft. An inner diameter measuring instrument, a dial indicator, and a camera are fixedly mounted on the side of the mounting plate two. An inner diameter measuring instrument is fixedly mounted on one side of the mounting plate one. An extension rod is fixedly mounted on one end of a rotating connector. Length markings are arranged on the extension rod. A fitting mechanism, an adaptation mechanism, and a driving mechanism are arranged between the mounting plate one and the mounting plate two. A display is arranged outside the hydraulic cylinder body.

[0006] Preferably, the bonding mechanism includes a fixing block, which is fixedly installed on the side of the mounting plate two. A support rod is rotatably installed on the fixing block, and a universal roller is rotatably installed on the end of the support rod away from the mounting plate two.

[0007] Preferably, a support shaft is rotatably mounted inside the fixed block, and the support shaft is fixedly mounted on the support rod.

[0008] Preferably, the drive mechanism includes a mounting bracket, which is fixedly mounted on a fixed shaft. A bidirectional motor is fixedly mounted on the mounting bracket, and a drive screw is fixedly mounted on each of the two output ends of the bidirectional motor.

[0009] Preferably, the adaptation mechanism includes a movable disc, which is threaded onto a drive screw, and a drive rod is rotatably mounted on the movable disc, with one end of the drive rod rotatably mounted on a support rod.

[0010] Preferably, both ends of the drive rod are rotatably mounted with drive shafts, and the two drive shafts are respectively fixedly mounted on the support rod and the movable plate.

[0011] Preferably, the extension rod includes multiple extension rods connected together, one end of the extension rod has a connecting threaded groove, and the other end of the extension rod is fixedly installed with a connecting threaded head, which is threaded into the connecting threaded groove.

[0012] The beneficial effects of this utility model are:

[0013] In this invention, an inner diameter measuring instrument, a dial indicator, and a camera work together to monitor the measurement data of the inner diameter measuring instrument and the dial indicator inside the hydraulic cylinder body. This allows external personnel to monitor the measurement data on a display screen at any time. At the same time, an extension rod control device is used to reach deep into the hydraulic cylinder body. Multiple extension rods are assembled and used to measure longer and more accurately locate the position of the dimensional deviation.

[0014] In this invention, a bidirectional motor is used to control the support rod to open and attach the universal roller to the inner wall of the hydraulic cylinder body, thereby ensuring that the inner diameter measuring instrument can always be in the center position of the hydraulic cylinder body, ensuring the accuracy of the measurement data. The triangular structure formed by the support rod and the universal roller can enhance the stability of the inner diameter measuring instrument during measurement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a deep hole measuring device proposed in this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of a deep hole measuring device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of a deep hole measuring device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the extended rod portion of a deep hole measuring device proposed in this utility model.

[0019] In the diagram: 100, Hydraulic cylinder body; 200, Mounting plate one; 201, Fixed shaft; 202, Mounting plate two; 203, Inner diameter measuring instrument; 204, Dial indicator; 205, Camera; 206, Rotary connector; 207, Display; 300, Extension rod; 301, Length marker; 302, Extension rod; 303, Connecting thread groove; 304, Connecting thread head; 400, Fixing block; 401, Support rod; 402, Universal roller; 403, Support shaft; 500, Mounting bracket; 501, Bidirectional motor; 502, Movable disc; 503, Drive rod; 504, Drive shaft. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4 A deep hole measuring device is applied to a hydraulic cylinder body 100. A mounting plate 200 is arranged inside the hydraulic cylinder body 100. A fixed shaft 201 is fixedly mounted on the upper side of the mounting plate 200. A mounting plate 202 is fixedly mounted at one end of the fixed shaft 201. An inner diameter measuring instrument 203, a dial indicator 204, and a camera 205 are fixedly mounted on the side of the mounting plate 202. The inner diameter measuring instrument 203 is fixedly mounted on one side of the mounting plate 200. An extension rod 300 is fixedly mounted at one end of a rotating connector 206, and length markings are arranged on the extension rod 300. 301. A fitting mechanism, an adaptation mechanism, and a driving mechanism are arranged between the mounting plate 1 200 and the mounting plate 2 202. A display 207 is arranged outside the hydraulic cylinder body 100. By using an inner diameter measuring instrument, a dial indicator, and a camera in cooperation, the camera can monitor the measurement data of the inner diameter measuring instrument and the dial indicator inside the hydraulic cylinder body. This allows external personnel to check the measurement data through the display at any time. At the same time, an extension rod control device is used to reach inside the hydraulic cylinder body. Multiple extension rods are assembled and used to measure longer and more accurately locate the position of the dimensional deviation.

[0022] In an optional embodiment: the bonding mechanism includes a fixing block 400, which is fixedly installed on the side of the mounting plate 202. A support rod 401 is rotatably installed on the fixing block 400. A universal roller 402 is rotatably installed at the end of the support rod 401 away from the mounting plate 202. A support shaft 403 is rotatably installed inside the fixing block 400 and is fixedly installed on the support rod 401.

[0023] It should be noted that the unfolded support rod 401 rotates on the fixed block 400 via the support shaft 403, and presses the universal roller 402 at the end of the support rod 401 against the inner wall of the hydraulic cylinder body 100. The device is supported at the center position of the hydraulic cylinder body 100 by the three universal rollers 402.

[0024] In an optional embodiment: the drive mechanism includes a mounting bracket 500, which is fixedly mounted on a fixed shaft 201. A bidirectional motor 501 is fixedly mounted on the mounting bracket 500. Both output ends of the bidirectional motor 501 are fixedly mounted with drive screws. The adaptation mechanism includes a movable disc 502, which is threaded onto the drive screws. A drive rod 503 is rotatably mounted on the movable disc 502. One end of the drive rod 503 is rotatably mounted on a support rod 401. Both ends of the drive rod 503 are rotatably mounted with drive shafts 504. The two drive shafts 504 are respectively fixedly mounted on the support rod 401 and the movable disc 502.

[0025] It should be noted that the output ends on both sides of the bidirectional motor 501 will drive the drive screw to rotate. The rotating drive screw will drive the movable disk 502 to move to a different position. The movable disk 502 will drive the drive rod 503 to unfold through the drive shaft 504. The unfolded drive rod 503 will drive the support rod 401 to unfold through another drive shaft 504.

[0026] In an optional embodiment: the extension rod 300 includes a plurality of extension rods 302 connected together. One end of the extension rod 302 is provided with a connecting threaded groove 303, and the other end of the extension rod 302 is fixedly installed with a connecting threaded head 304, which is threadedly installed in the connecting threaded groove 303.

[0027] It should be noted that the length mark 301 on the surface of the extension rod 300 can determine the measurement depth. The length of the extension rod 300 can be extended by adding an extension rod 302. The new extension rod 302 can be connected to the original extension rod 302 using the connecting thread groove 303 and the connecting thread head 304, thereby changing the overall length of the extension rod 300.

[0028] Working principle of this utility model:

[0029] When using this device, it needs to be placed inside the hydraulic cylinder body 100. Then, the bidirectional motor 501 is started. The output ends on both sides of the bidirectional motor 501 will drive the drive screw to rotate. The rotating drive screw drives the movable disc 502 to move. The movable disc 502 drives the drive rod 503 to unfold via the drive shaft 504. The unfolded drive rod 503 drives the support rod 401 to unfold via another drive shaft 504. The unfolded support rod 401 rotates on the fixed block 400 via the support shaft 403, pressing the universal roller 402 at the end of the support rod 401 against the inner wall of the hydraulic cylinder body 100. The three universal rollers 402 support the device at the center position of the hydraulic cylinder body 100. At this time, the inner diameter of the side of the mounting plate 202 is measured. The measuring instrument 203 is located at the center of the hydraulic cylinder body 100 and can measure the change in the inner diameter of the hydraulic cylinder body 100. The camera 205 can transmit the value displayed by the dial indicator 204 to the external display 207 via wired or wireless connection for easy viewing by the user. In order to measure the change in the inner diameter of the hydraulic cylinder body 100 at different positions, an extension rod 300 is needed to push the device into the hydraulic cylinder body 100. The length mark 301 on the surface of the extension rod 300 can determine the measurement depth. The length of the extension rod 300 can be extended by adding an extension rod 302. The new extension rod 302 is connected to the original extension rod 302 using the connecting thread groove 303 and the connecting thread head 304, thereby changing the overall length of the extension rod 300.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A deep hole measuring device, applied to the cylinder body (100) of a hydraulic cylinder, characterized in that: The hydraulic cylinder body (100) is provided with a mounting plate 1 (200). A fixed shaft (201) is fixedly mounted on the upper side of the mounting plate 1 (200). A mounting plate 2 (202) is fixedly mounted on one end of the fixed shaft (201). An inner diameter measuring instrument (203), a dial indicator (204), and a camera (205) are fixedly mounted on the side of the mounting plate 2 (202). An inner diameter measuring instrument (203) is fixedly mounted on one side of the mounting plate 1 (200). An extension rod (300) is fixedly mounted on one end of the rotating connector (206). A length mark (301) is arranged on the extension rod (300). A fitting mechanism, an adaptation mechanism, and a driving mechanism are arranged between the mounting plate 1 (200) and the mounting plate 2 (202). A display (207) is arranged on the outside of the hydraulic cylinder body (100).

2. The deep hole measuring device according to claim 1, characterized in that: The bonding mechanism includes a fixing block (400), which is fixedly installed on the side of the mounting plate 2 (202). A support rod (401) is rotatably installed on the fixing block (400), and a universal roller (402) is rotatably installed on the end of the support rod (401) away from the mounting plate 2 (202).

3. The deep hole measuring device according to claim 2, characterized in that: A support shaft (403) is rotatably installed inside the fixed block (400), and the support shaft (403) is fixedly installed on the support rod (401).

4. The deep hole measuring device according to claim 1, characterized in that: The drive mechanism includes a mounting bracket (500), which is fixedly mounted on a fixed shaft (201). A bidirectional motor (501) is fixedly mounted on the mounting bracket (500), and a drive screw is fixedly mounted on both output ends of the bidirectional motor (501).

5. A deep hole measuring device according to claim 1, characterized in that: The adaptation mechanism includes a movable disc (502), which is threaded onto a drive screw. A drive rod (503) is rotatably mounted on the movable disc (502), and one end of the drive rod (503) is rotatably mounted on a support rod (401).

6. A deep hole measuring device according to claim 5, characterized in that: Both ends of the drive rod (503) are rotatably mounted with drive shafts (504), and the two drive shafts (504) are fixedly mounted on the support rod (401) and the movable plate (502) respectively.

7. A deep hole measuring device according to claim 1, characterized in that: The extension rod (300) includes multiple extension rods (302) connected together. One end of the extension rod (302) is provided with a connecting thread groove (303), and the other end of the extension rod (302) is fixedly installed with a connecting thread head (304). The connecting thread head (304) is threaded into the connecting thread groove (303).

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