A fixing device for gearbox detection

Abstract

The utility model discloses a kind of fixing devices for gear box detection, belong to gear box detection field, including table body, the top of table body is connected with horizontal plate, the table body is "concave" shape, the top of horizontal plate is connected with adjusting mechanism and clamping mechanism;Arc-shaped through slot and straight through slot are opened on the horizontal plate, the bottom of horizontal plate is connected with straight block, the bottom of straight block is connected with bottom bar;The adjusting mechanism includes moving plate, vertical rod, fixed disc and transverse rod and movable disc, vertical rod is movably arranged on moving plate, vertical rod is connected on fixed disc;By setting horizontal plate with arc-shaped through slot, adjusting mechanism driven by electric push rod and fixed assembly rotating with movable disc as center, fixed assembly can be driven along arc-shaped trajectory Flexible rotation, can be adapted to connect shaft and output shaft parallel or perpendicular Two kinds of gear box layout, effectively solve the problem of poor adaptability of existing device.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox inspection and fixing technology, specifically relating to a fixing device for gearbox inspection. Background Technology

[0002] Gearboxes (also known as transmissions or reducers) are core mechanical transmission devices in the industrial and transportation fields. The core consists of gear pairs, shaft systems, bearings, housings, and lubrication and sealing systems. Through the meshing of gears with different numbers of teeth, they realize speed regulation (increasing or decreasing speed), torque conversion (amplifying torque during deceleration to adapt to heavy loads, and reducing torque during increasing speed to meet high-speed requirements), and change of power direction (such as vertical transmission through bevel gears). They are widely used in machine tools, automobiles, cranes, fans, and other equipment, and are the "power conversion hub" that connects power input and execution output and ensures stable operation of equipment as required.

[0003] The gearbox's shaft system comprises two key components: the connecting shaft and the output shaft. The connecting shaft serves as the power input end, specifically designed to connect to the drive motor to receive the original power. The output shaft serves as the power output end, directly connecting to the load device (such as rollers, actuators, machine tool components, etc.), ultimately transmitting the adapted speed and torque adjusted by the gearbox to the load, forming a complete power transmission link from the motor to the working end.

[0004] After the gearbox is manufactured, the radial runout of the output shaft needs to be checked using a dial indicator. During the test, to avoid gearbox vibration affecting the measurement accuracy, it needs to be fixed. However, common gearboxes on the market have two layouts for the connecting shaft and the output shaft: parallel and perpendicular. This makes it difficult for existing testing and fixing devices to be compatible with both types of gearboxes, resulting in poor adaptability and inability to meet diverse testing needs. Therefore, a fixing device for gearbox testing is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing device for gearbox testing, so as to solve the problem of poor adaptability due to the difficulty in incorporating two layouts of parallel and perpendicular connection shafts to output shafts.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixing device for gearbox testing, comprising a platform, a horizontal plate connected to the top of the platform, the platform being U-shaped, and an adjustment mechanism and a clamping mechanism connected to the top of the horizontal plate;

[0007] The horizontal plate is provided with an arc-shaped through groove and a straight through groove, and a straight block is connected to the bottom of the horizontal plate, and a bottom rod is connected to the bottom of the straight block;

[0008] The adjustment mechanism includes a movable plate, a vertical rod, a fixed plate, a horizontal rod, and a movable plate. The vertical rod is movably mounted on the movable plate and connected to the fixed plate. The fixed plate is connected to the movable plate via the horizontal rod, and the movable plate is movably sleeved on the bottom rod.

[0009] The clamping mechanism includes a No. 1 motor, a threaded rod, and two moving blocks. The threaded rod has two opposite threads, and the two moving blocks are threadedly fitted onto the two threads of the threaded rod.

[0010] A fixing component is provided at the top of the vertical rod, which is used to fix the output shaft of the gearbox.

[0011] Furthermore, the threaded rod is mounted on the output shaft of motor number one, with both ends of the threaded rod respectively set on the inner wall of the straight block, and the two moving blocks pass through the straight through groove.

[0012] Furthermore, the top of the straight block is provided with an opening, and the opening at the top of the straight block is connected to the straight through groove.

[0013] Furthermore, the arc of the arc-shaped through groove is not less than 90 degrees.

[0014] Furthermore, a first groove is provided on the movable plate, and a second groove is provided on both sides of the inner wall of the first groove. The bottom of the vertical rod is connected to a limiting plate, and the two sides of the limiting plate are slidably disposed in the two second grooves.

[0015] Furthermore, the vertical rod passes through the arc-shaped through slot and connects to the mounting plate.

[0016] Furthermore, the fixing component includes a bolt, an outer cylinder, and an inner cylinder, with the end of the bolt connected to the outer cylinder, and the inner cylinder rotatably fitted inside the outer cylinder.

[0017] Furthermore, the inner wall of the outer cylinder is provided with a No. 3 groove, and the inner cylinder is provided with a No. 4 groove, with multiple ball bearings arranged between the No. 3 groove and the No. 4 groove.

[0018] Furthermore, the distance between the bottom rod and the right side of the straight block is greater than the distance between the bottom rod and the left side of the straight block, and one side of the straight block is located between the arc-shaped through groove and the straight through groove.

[0019] Furthermore, a second motor is provided on one side of the top of the horizontal plate, and the output shaft of the second motor is connected to the connecting shaft of the gearbox via a coupling.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This gearbox testing fixing device, by setting up a horizontal plate with an arc-shaped through groove, an adjustment mechanism driven by an electric push rod, and a fixing component that rotates around a movable disc, can drive the fixing component to rotate flexibly along an arc-shaped trajectory. It can adapt to two gearbox layouts where the connecting shaft and the output shaft are parallel or perpendicular, effectively solving the problem of poor adaptability of existing devices.

[0022] This gearbox testing fixing device uses a clamping mechanism with a bidirectional threaded rod. When the motor is started, it drives two moving blocks to quickly clamp the gearbox. Combined with the bolt-driven outer and inner cylinder assemblies that abut and fix the output shaft, the double fixing structure can prevent gearbox vibration during testing and ensure the accuracy of the dial indicator in detecting the radial runout of the output shaft. Attached Figure Description

[0023] Figure 1 A perspective view of the fixture used for gearbox inspection;

[0024] Figure 2 for Figure 1 Schematic diagram of a section of a part after it has been cut open;

[0025] Figure 3 for Figure 1 A three-dimensional view of the mid-level plate;

[0026] Figure 4 This is a schematic diagram showing the connection between the adjustment mechanism and the fixed component;

[0027] Figure 5 An exploded view of the regulating mechanism;

[0028] Figure 6 This is a sectional view of the outer cylinder;

[0029] Figure 7 Exploded view of the clamping mechanism;

[0030] Figure 8 It is a vertical gearbox.

[0031] In the diagram: 10. Platform; 110. Horizontal plate; 1101. Arc-shaped through groove; 1102. Straight through groove; 120. Straight block; 130. Base rod; 140. Motor No. 2; 210. Electric push rod; 220. Moving plate; 2201. Slot No. 1; 2202. Slot No. 2; 230. Vertical rod; 231. Limiting plate; 232. Mounting plate; 240. Fixed plate; 250. Horizontal rod; 260. Movable plate; 310. Motor No. 1; 320. Threaded rod; 330. Moving block; 40. Bolt; 410. Outer cylinder; 4101. Slot No. 3; 420. Inner cylinder; 4201. Slot No. 4; 430. Ball bearing; 50. Gearbox; 510. Output shaft; 520. Connecting shaft. Detailed Implementation

[0032] The present invention will be further described below with reference to the embodiments.

[0033] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0034] Please see Figure 1 This utility model provides a fixing device for gearbox testing, including a platform 10.

[0035] The top of the platform 10 is connected to a horizontal plate 110. The platform 10 is U-shaped. The top of the horizontal plate 110 is connected to an adjustment mechanism and a clamping mechanism.

[0036] Please see Figure 1 and Figure 3 The horizontal plate 110 is provided with an arc-shaped through groove 1101 and a straight through groove 1102. A straight block 120 is connected to the bottom of the horizontal plate 110. The top of the straight block 120 is provided with an opening, and the top opening of the straight block 120 is connected to the straight through groove 1102. A bottom rod 130 is connected to the bottom of the straight block 120. The arc of the arc-shaped through groove 1101 is not less than 90 degrees.

[0037] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5The adjustment mechanism includes an electric push rod 210, a movable plate 220, a vertical rod 230, a fixed plate 240, and a horizontal rod 250. The piston rod of the electric push rod 210 is connected to the movable plate 220. The movable plate 220 has a first groove 2201, and two second grooves 2202 are formed on both sides of the inner wall of the first groove 2201. The bottom of the vertical rod 230 is connected to a limiting plate 231, and the two sides of the limiting plate 231 are slidably disposed in the two second grooves 2202, so that the vertical rod 230 can move left and right but cannot be moved out of the movable plate 220. The vertical rod 230 passes through an arc-shaped through groove 1101 and is connected to a mounting plate 232. A bolt 40 is threaded onto the mounting plate 232. The vertical rod 230 is connected to the fixed plate 240, and the fixed plate 240 is connected to a movable rod via the horizontal rod 250. The vertical rod 230 rotates around the center of the movable plate 260 via the fixed plate 240, the horizontal rod 250, and the movable plate 260. The movable plate 260 is movably sleeved on the bottom rod 130. After the electric push rod 210 is started, it pushes the moving plate 220 to move back and forth. The moving plate 220 pushes the limiting plate 231 to move back and forth. The vertical rod 230 moves with the limiting plate 231. The vertical rod 230 can move within the first slot 2201 and the second slot 2202 on the moving plate 220 via the limiting plate 231. Because the vertical rod 230 is limited and abutted by the arc-shaped through slot 1101, and at the same time, the vertical rod 230 is connected to the bottom rod 130 via the fixed plate 240, the horizontal rod 250, and the movable plate 260, the vertical rod 230 rotates around the center of the movable plate 260, thereby driving the fixed component to rotate around the center of the movable plate 260.

[0038] Please see Figure 1 , Figure 2 , Figure 4 and Figure 6 The fixing assembly includes a bolt 40, an outer cylinder 410, and an inner cylinder 420. The end of the bolt 40 is connected to the outer cylinder 410. The inner cylinder 420 is rotatably sleeved inside the outer cylinder 410. The inner wall of the outer cylinder 410 has a third groove 4101, and the inner cylinder 420 has a fourth groove 4201. Multiple balls 430 are arranged between the third groove 4101 and the fourth groove 4201. The balls 430 reduce the friction between the outer cylinder 410 and the inner cylinder 420 and prevent the inner cylinder 420 from moving laterally out of the outer cylinder 410. By rotating the bolt 40, the bolt 40 drives the outer cylinder 410 and the inner cylinder 420 to move towards the gearbox 50, so that the inner cylinder 420 is tightly pressed against the output shaft 510 of the gearbox 50.

[0039] Please see Figure 2 and Figure 7The clamping mechanism includes a primary motor 310, a threaded rod 320, and two moving blocks 330. The threaded rod 320 is mounted on the output shaft of the primary motor 310 and has two opposite threads. The two ends of the threaded rod 320 are respectively located on the inner wall of the straight block 120. The two moving blocks 330 are threaded onto the two opposite threads and pass through the straight through groove 1102. When the primary motor 310 is started, the output shaft of the primary motor 310 drives the threaded rod 320 to rotate. The threaded rod 320 drives the two moving blocks 330 to move closer to each other, thereby clamping and fixing the gearbox 50 to prevent vibration during testing.

[0040] Please see Figure 5 The first motor 310 is located on the right side of the straight block 120. The distance between the bottom rod 130 and the right side of the straight block 120 is greater than the distance between the bottom rod 130 and the left side of the straight block 120. The side of the straight block 120 closest to the arc-shaped through groove 1101 is located between the arc-shaped through groove 1101 and the straight through groove 1102 to prevent the vertical rod 230 from being blocked by the straight block 120 when it rotates, thus preventing it from rotating to 90 degrees.

[0041] Please see Figure 1 A second motor 140 is installed on the right side of the horizontal plate 110 via a height block. The output shaft of the second motor 140 is connected to the connecting shaft 520 of the gearbox 50 via a coupling. The second motor 140 drives the gearbox 50 to rotate, causing the connecting shaft 520 and the output shaft 510 to rotate, so that the dial indicator needle contacts the connecting shaft 520 and the output shaft 510 for measurement.

[0042] The working principle and usage process of this utility model are as follows: The gearbox 50 to be tested is placed on the horizontal plate 110 of the platform 10. Based on the actual layout (parallel or perpendicular) of the connecting shaft 520 and output shaft 510 of the gearbox 50, it is determined whether the angle of the fixing component needs to be adjusted. If angle adjustment is required, the electric push rod 210 in the adjustment mechanism is activated. The electric push rod 210 pushes the moving plate 220 to move back and forth. The moving plate 220 drives the limiting plate 231 to move. Because the vertical rod 230 is restricted by the arc-shaped fixing plate 240, the horizontal rod 250, and the movable plate 260, and the limiting plate 231 can move within the first slot 2201 and the second slot 2202 of the moving plate 220, the vertical rod 230 will rotate along the trajectory of the arc-shaped through groove 1101, thereby driving the fixing component to rotate around the movable plate 260 to the angle of the suitable layout. The first motor 310 in the clamping mechanism is activated, and the output shaft of the first motor 310 drives the screw... When the threaded rod 320 rotates, the two moving blocks 330 will move closer to each other along the straight through groove 1102 due to the two opposite threads on the threaded rod 320, clamping and fixing the gearbox 50 on the horizontal plate 110 to prevent the gearbox 50 from shaking during testing. Rotating the bolt 40 in the fixing assembly causes the outer cylinder 410 and inner cylinder 420 to move towards the output shaft 510 of the gearbox 50 until the inner cylinder 420 is tightly against the output shaft 510, fixing and limiting the output shaft of the gearbox 50. The output shaft of the second motor 140 on the right side height block of the horizontal plate 110 is connected to the connecting shaft 520 of the gearbox 50 through a coupling. The second motor 140 is started to drive the gearbox 50 to rotate, so that the connecting shaft 520 and the output shaft 510 rotate synchronously. The dial indicator needle is brought into contact with the rotating connecting shaft 520 and the output shaft 510 respectively to complete the detection operation of the radial runout of the output shaft 510.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing device for gearbox inspection, characterized in that: Includes a platform (10), the top of which is connected to a horizontal plate (110), the platform (10) is U-shaped, and the top of the horizontal plate (110) is connected to an adjustment mechanism and a clamping mechanism. The horizontal plate (110) is provided with an arc-shaped through groove (1101) and a straight through groove (1102). A straight block (120) is connected to the bottom of the horizontal plate (110), and a bottom rod (130) is connected to the bottom of the straight block (120). The adjustment mechanism includes an electric push rod (210), a movable plate (220), a vertical rod (230), a fixed plate (240), a horizontal rod (250), and a movable plate (260). The electric push rod (210) is used to push the movable plate (220) to move. The vertical rod (230) is movably mounted on the movable plate (220) and connected to the fixed plate (240). The fixed plate (240) is connected to the movable plate (260) via the horizontal rod (250). The movable plate (260) is movably sleeved on the bottom rod (130). The clamping mechanism includes a motor (310), a threaded rod (320), and two moving blocks (330). The threaded rod (320) has two opposite threads, and the two moving blocks (330) are threadedly fitted onto the two threads of the threaded rod (320). The top end of the vertical rod (230) is provided with a fixing component, which is used to fix the output shaft of the gearbox (50).

2. The fixing device for gearbox testing according to claim 1, characterized in that: The threaded rod (320) is mounted on the output shaft of the first motor (310). The two ends of the threaded rod (320) are respectively set on the inner wall of the straight block (120), and the two moving blocks (330) pass through the straight through groove (1102).

3. The fixing device for gearbox testing according to claim 1, characterized in that: The top of the straight block (120) is provided with an opening, and the top opening of the straight block (120) is connected to the straight through groove (1102).

4. The fixing device for gearbox testing according to claim 1, characterized in that: The arc of the arc-shaped through groove (1101) is not less than 90 degrees.

5. The fixing device for gearbox testing according to claim 1, characterized in that: The movable plate (220) has a first groove (2201), and the inner walls of the first groove (2201) are provided with second grooves (2202) on both sides. The bottom of the vertical rod (230) is connected to a limiting plate (231), and the two sides of the limiting plate (231) are slidably arranged in the two second grooves (2202).

6. The fixing device for gearbox testing according to claim 1, characterized in that: The vertical rod (230) passes through the arc-shaped through slot (1101) and is connected to the mounting plate (232).

7. A fixing device for gearbox testing according to claim 1, characterized in that: The fixing assembly includes a bolt (40), an outer cylinder (410) and an inner cylinder (420). The end of the bolt (40) is connected to the outer cylinder (410), and the inner cylinder (420) is rotatably sleeved inside the outer cylinder (410).

8. A fixing device for gearbox testing according to claim 7, characterized in that: The inner wall of the outer cylinder (410) is provided with a third groove (4101), and the inner cylinder (420) is provided with a fourth groove (4201). Multiple balls (430) are arranged between the third groove (4101) and the fourth groove (4201).

9. A fixing device for gearbox testing according to claim 1, characterized in that: The distance between the bottom rod (130) and the right side of the straight block (120) is greater than the distance between the bottom rod (130) and the left side of the straight block (120). One side of the straight block (120) is located between the arc-shaped through groove (1101) and the straight through groove (1102).

10. A fixing device for gearbox testing according to claim 1, characterized in that: A second motor (140) is provided on one side of the top of the horizontal plate (110), and the output shaft of the second motor (140) is connected to the connecting shaft (520) of the gearbox (50) through a coupling.

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