Gear inner diameter detection device

Abstract

The utility model discloses a gear inner diameter detection device, and particularly relates to the technical field of gear detection, the gear inner diameter detection device comprises a hydraulic cylinder, a mounting rack, a first baffle plate and a second baffle plate, the mounting rack, the first baffle plate and the second baffle plate are all located at the top of the hydraulic cylinder, the top end of the first baffle plate is fixedly connected with the mounting rack, and the front side of the mounting rack is fixedly connected with a graduated scale. A detection assembly is arranged on the mounting frame and comprises a motor, a lead screw and an indication sliding block, and the motor is fixedly mounted on one side of the mounting frame. The piston rod on the hydraulic cylinder contracts to drive the first baffle and the second baffle to move downwards, the motor works to drive the second baffle to move horizontally and make the second baffle make contact with the inner wall of the gear, and the distance between the first baffle and the second baffle is observed through the graduated scale and the indication sliding block. The gear inner diameter detection device is simple in operation, does not need to position the detection assembly, and is good in use effect.

Description

Technical Field

[0001] This utility model relates to the field of gear testing technology, and more specifically, to a gear inner diameter testing device. Background Technology

[0002] The main purpose of gear inner diameter inspection is to ensure that the inner diameter of the gear meets the design requirements, thereby guaranteeing the correct fit and stable operation of the gear and the drive shaft. Gear inner diameter inspection is widely used in the automotive, aerospace, and machinery manufacturing industries, especially in applications where extremely high transmission accuracy is required. However, existing inspection devices have poor adaptability and cannot measure the inner diameter of gears of different sizes; furthermore, adjusting these devices is inconvenient.

[0003] A search revealed that Chinese patent CN217424213U discloses an internal diameter measuring device for gear testing. This invention uses a motor to drive a threaded rod to rotate in both directions, allowing the internal threaded block to move up and down with the threaded rod, ensuring the stability of the connecting block's vertical movement. Furthermore, rotating the rotating handle drives a bidirectional lead screw, causing the sliding blocks on both sides of the bidirectional lead screw to move outwards, thus moving the arc-shaped blocks on both sides outwards to measure the gear's internal diameter.

[0004] When the above-mentioned detection device is in use, the sliding blocks on both sides of the bidirectional lead screw move outward, causing the arc-shaped blocks on both sides to move outward. However, the detection device needs to be positioned so that it is located at the center of the gear. When the detection device is not located at the center of the gear, one side of the arc-shaped block will not be able to contact the gear, resulting in poor performance. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a gear inner diameter detection device, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gear inner diameter detection device, comprising a hydraulic cylinder, a mounting frame, a first baffle, and a second baffle. The mounting frame, the first baffle, and the second baffle are all located at the top of the hydraulic cylinder, and the top end of the first baffle is fixedly connected to the mounting frame. A scale is fixedly connected to the front side of the mounting frame. A detection component is provided on the mounting frame. The detection component includes a motor, a lead screw, and an indicator slider. The motor is fixedly mounted on one side of the mounting frame, and the end of the motor's output shaft is fixedly connected to the lead screw. Both ends of the lead screw are movably connected to the mounting frame via bearings. The indicator slider is threadedly connected to the outer side of the lead screw, and the front side of the indicator slider passes through the front side of the mounting frame. The top end of the second baffle is fixedly connected to the indicator slider.

[0007] Furthermore, a top plate is fixedly connected to the center of the rear side of the mounting bracket, and the bottom end of the top plate is fixedly connected to the hydraulic cylinder.

[0008] It can be seen that the above technical solution is designed to facilitate the vertical movement of the mounting bracket.

[0009] Furthermore, a base is fixedly connected to the bottom end of the hydraulic cylinder, and four through holes are provided on the base.

[0010] As can be seen, in the above technical solution, four bolts are inserted into four through holes respectively, and the base is fixed by the four bolts.

[0011] Furthermore, the bottom of the mounting bracket is provided with a pressing assembly, which includes a pressure plate, two telescopic rods, two springs, and two cross plates.

[0012] Furthermore, the top and bottom ends of the two telescopic rods and the two springs are respectively fixedly connected to the two horizontal plates and the pressure plate, and the two telescopic rods are respectively located inside the two springs.

[0013] Furthermore, a gasket is fixedly connected to the bottom end of the pressure plate.

[0014] It can be seen that the above technical solution aims to improve the firmness between the pressure plate and the gear.

[0015] Furthermore, a side plate is movably arranged between the two horizontal plates, and the top of the side plate is fixedly connected to the mounting bracket. Two threaded rods are fixedly connected to one side of the side plate, and one end of each threaded rod passes through the two horizontal plates. Threaded sleeves are threadedly connected to both threaded rods.

[0016] As can be seen, in the above technical solution, rotating the threaded sleeve and moving it away from the threaded insert rod releases the fixation between the horizontal plate and the side plate, allowing the pressure plate to be disassembled and repaired.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. This utility model uses the retraction of the piston rod on the hydraulic cylinder to drive the first and second baffles to move downwards, and the operation of the motor to drive the second baffle to move horizontally, so that the second baffle contacts the inner wall of the gear. The distance between the first and second baffles can be observed by the scale and the indicator slider, thereby detecting the inner diameter of the gear. The operation is simple, no positioning of the detection components is required, and the effect is good.

[0019] 2. This utility model uses a pressure plate and a gasket to squeeze the gear. At the same time, the pressure plate drives two telescopic rods to compress and two springs to retract, so that the first baffle and the second baffle can move into the gear. The structure is simple, the gear is not easy to move when testing the gear, and the performance is good. Attached Figure Description

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a rear view of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the assembly structure of the hydraulic cylinder and mounting bracket of this utility model;

[0024] Figure 4 This is a schematic diagram of the assembly structure of the detection component and the first baffle of this utility model;

[0025] Figure 5 This is a schematic diagram of the extrusion assembly structure of this utility model.

[0026] In the diagram: 1. Hydraulic cylinder; 2. Top plate; 3. Mounting bracket; 4. Detection component; 5. Scale; 6. First baffle; 7. Second baffle; 8. Extrusion component; 9. Base; 401. Motor; 402. Lead screw; 403. Indicator slider; 801. Pressure plate; 802. Telescopic rod; 803. Spring; 804. Horizontal plate; 805. Gasket; 806. Side plate; 807. Threaded insert; 808. Threaded sleeve. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Refer to the instruction manual appendix Figure 1-5This embodiment of a gear inner diameter detection device includes a hydraulic cylinder 1, a mounting frame 3, a first baffle 6, and a second baffle 7. The mounting frame 3, the first baffle 6, and the second baffle 7 are all located on the top of the hydraulic cylinder 1, and the top end of the first baffle 6 is fixedly connected to the mounting frame 3. A scale 5 is fixedly connected to the front side of the mounting frame 3. A detection component 4 is provided on the mounting frame 3. The detection component 4 includes a motor 401, a lead screw 402, and an indicator slider 403. The motor 401 is fixedly installed on one side of the mounting frame 3, and the output shaft end of the motor 401 is fixedly connected to the lead screw 402. Both ends of the lead screw 402 are movably connected to the mounting frame 3 through bearings. The indicator slider 403 is threadedly connected to the outer side of the lead screw 402, and the front side of the indicator slider 403 passes through the front side of the mounting frame 3. The top end of the second baffle 7 is fixedly connected to the indicator slider 403.

[0029] Furthermore, a top plate 2 is fixedly connected to the center of the rear side of the mounting bracket 3, and the bottom end of the top plate 2 is fixedly connected to the hydraulic cylinder 1. A base 9 is fixedly connected to the bottom end of the hydraulic cylinder 1, and four through holes are provided on the base 9.

[0030] Furthermore, the bottom of the mounting frame 3 is provided with a pressing assembly 8, which includes a pressure plate 801, two telescopic rods 802, two springs 803, and two horizontal plates 804. The top and bottom ends of the two telescopic rods 802 and the two springs 803 are respectively fixedly connected to the two horizontal plates 804 and the pressure plate 801, and the two telescopic rods 802 are respectively located inside the two springs 803. A gasket 805 is fixedly connected to the bottom end of the pressure plate 801. A side plate 806 is movably arranged between the two horizontal plates 804, and the top end of the side plate 806 is fixedly connected to the mounting frame 3. Two threaded rods 807 are fixedly connected to one side of the side plate 806, and one end of the two threaded rods 807 passes through the two horizontal plates 804 respectively. Threaded sleeves 808 are threadedly connected to both threaded rods 807.

[0031] When the mounting bracket 3 moves downward, it can drive the pressure plate 801 to move downward. The pressure plate 801 and the shim 805 squeeze the gear. The shim 805 can improve the firmness between the pressure plate 801 and the gear. At the same time, the pressure plate 801 drives the two telescopic rods 802 to compress and the two springs 803 to contract, so that the first baffle 6 and the second baffle 7 can move into the gear. The structure is simple, and the gear is not easy to move when testing the gear. The effect is good. Rotate the threaded sleeve 808 and move it away from the threaded insert rod 807, thereby releasing the fixation between the horizontal plate 804 and the side plate 806, and disassembling and repairing the pressure plate 801.

[0032] The usage method of this embodiment is as follows:

[0033] In use, the hydraulic cylinder 1 is placed on one side of the gear, with the first baffle 6 and the second baffle 7 located at the top of the gear. The hydraulic cylinder 1 is activated, causing the piston rod to retract and move the top plate 2 and mounting bracket 3 downwards. This moves the first baffle 6 and the second baffle 7 downwards, allowing them to enter the gear. One side of the first baffle 6 contacts the inner wall of the gear. The motor 401 is then activated, causing the lead screw 402 to rotate. Since the lead screw 402 is threadedly connected to the indicator slider 403, and the mounting bracket 3 restricts the rotation of the indicator slider 403, the lead screw 402 can move the indicator slider 403 horizontally, thereby moving the second baffle 7 horizontally and bringing it into contact with the inner wall of the gear. The distance between the first baffle 6 and the second baffle 7 is observed using the scale 5 and the indicator slider 403, thus allowing the inner diameter of the gear to be measured. The operation is simple, requiring no positioning of the detection component 4, and the effect is good. Four bolts are inserted into the four through holes, and the base 9 is fixed using these four bolts.

[0034] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gear inner diameter detection device, comprising a hydraulic cylinder (1), a mounting frame (3), a first baffle (6), and a second baffle (7), wherein the mounting frame (3), the first baffle (6), and the second baffle (7) are all located on the top of the hydraulic cylinder (1), and the top end of the first baffle (6) is fixedly connected to the mounting frame (3), characterized in that: A scale (5) is fixedly connected to the front side of the mounting bracket (3). A detection component (4) is provided on the mounting bracket (3). The detection component (4) includes a motor (401), a lead screw (402), and an indicator slider (403). The motor (401) is fixedly installed on one side of the mounting bracket (3), and the output shaft end of the motor (401) is fixedly connected to the lead screw (402). Both ends of the lead screw (402) are movably connected to the mounting bracket (3) through bearings. The indicator slider (403) is threadedly connected to the outer side of the lead screw (402), and the front side of the indicator slider (403) passes through the front side of the mounting bracket (3). The top end of the second baffle (7) is fixedly connected to the indicator slider (403).

2. The gear inner diameter detection device according to claim 1, characterized in that: A top plate (2) is fixedly connected to the center of the rear side of the mounting bracket (3), and the bottom end of the top plate (2) is fixedly connected to the hydraulic cylinder (1).

3. The gear inner diameter detection device according to claim 1, characterized in that: The bottom end of the hydraulic cylinder (1) is fixedly connected to a base (9), and the base (9) has four through holes.

4. The gear inner diameter detection device according to claim 1, characterized in that: The bottom of the mounting bracket (3) is provided with a pressing assembly (8), which includes a pressure plate (801), two telescopic rods (802), two springs (803) and two horizontal plates (804).

5. The gear inner diameter detection device according to claim 4, characterized in that: The top and bottom ends of the two telescopic rods (802) and the two springs (803) are fixedly connected to the two horizontal plates (804) and the pressure plate (801) respectively, and the two telescopic rods (802) are located inside the two springs (803).

6. The gear inner diameter detection device according to claim 4, characterized in that: A gasket (805) is fixedly connected to the bottom end of the pressure plate (801).

7. The gear inner diameter detection device according to claim 4, characterized in that: A side plate (806) is movably arranged between the two horizontal plates (804), and the top of the side plate (806) is fixedly connected to the mounting bracket (3). Two threaded rods (807) are fixedly connected to one side of the side plate (806), and one end of the two threaded rods (807) passes through the two horizontal plates (804) respectively. Threaded sleeves (808) are threadedly connected to both threaded rods (807).

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