A stable gear box limiting device

Abstract

This utility model discloses a stable gearbox limiting device, specifically relating to the field of gearbox installation technology. It includes a base on which a positioning and clamping assembly is mounted. The positioning and clamping assembly includes a first connecting plate at one end of the base and a second connecting plate at the other end. Clamping rods are respectively mounted on the top of the first and second connecting plates. A motor is positioned between the first and second connecting plates. This utility model uses a gear and rack-driven positioning and clamping assembly, combined with a limiting cavity formed by a tray and clamping rods, to constrain the gearbox, effectively preventing excessive movement during gear shifting or adjustment. This prevents gear wear, shaft deformation, bearing jamming, and other malfunctions, ensuring safe gearbox operation. The servo motor drives the gears to rotate, which in turn drives the rack to adjust the distance between the two connecting plates, adapting to the limiting requirements of gearboxes of different specifications. It eliminates the need to replace fixed blocks, improving the device's versatility.

Description

Technical Field

[0001] This utility model relates to the field of gearbox installation technology, and more specifically, to a stable gearbox limiting device. Background Technology

[0002] A gearbox, also known as a transmission, is a mechanical transmission device composed of multiple gears. Its core function is to change the speed, torque, and direction of rotation between the input and output shafts through the meshing of gears.

[0003] If the gearbox moves beyond the preset range during shifting or adjustment, it may cause excessive compression between gears, damaging the tooth surface, or directly disengage, causing power interruption and sudden equipment stoppage. Excessive movement may cause critical components such as shafts and bearings to bear loads exceeding design limits, leading to serious failures such as shaft deformation and bearing jamming, and ultimately damaging the entire gearbox. Therefore, a stable gearbox limiting device is provided. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a stable gearbox limiting device, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a stable gearbox limiting device, including a base, on which a positioning and clamping assembly is provided; The positioning and clamping assembly includes a first connecting plate disposed at one end of the base and a second connecting plate disposed at the other end of the base. Clamping rods are respectively disposed on the top of the first and second connecting plates. A motor is disposed between the first and second connecting plates. A gear is disposed at the output end of the motor. A toothed bar is disposed on one side of the first and second connecting plates, and each toothed bar extends to the outside of the gear and meshes with the gear.

[0006] Optionally, in one possible implementation, a tray is provided on the top of the gear, the tray is rotatably connected to the gear, a limiting cavity for placing the gearbox is formed between the tray and the clamping rod, and slide blocks are slidably connected to the bottom of the first connecting plate and the second connecting plate, respectively, and the slide blocks are mounted on the base by bolts. Optionally, in one possible implementation, a limit frame is provided on the side of each of the two racks away from the gear, and each limit frame is bolted to the base. A limit wheel is rotatably connected to each of the two limit frames, and each limit wheel abuts against and contacts the side of the rack. The first connecting plate and the second connecting plate are arranged opposite to each other, and a buffer pad is provided at the top of the first connecting plate and the second connecting plate. The technical effects and advantages of this utility model are as follows: The positioning and clamping assembly driven by gears and racks, combined with the limiting cavity formed by the pallet and clamping rod, constrains the gearbox, effectively preventing it from moving beyond its range during gear shifting or adjustment, preventing faults such as tooth surface wear, shaft deformation, and bearing jamming, and ensuring the safe operation of the gearbox. The servo motor drives the gear to rotate, which can drive the rack to adjust the distance between the two connecting plates, adapting to the limit requirements of different gearboxes, without the need to replace the fixed block, thus improving the versatility of the device; The slide guides the movement of the connecting plate, and the limiting wheel restricts the lateral displacement of the rack, ensuring that the clamping rod applies force evenly to the gearbox; at the same time, the inner buffer pad of the clamping rod relieves squeezing damage, reduces vibration and friction, and balances clamping stability and gearbox protection. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0008] Figure 1 This is a front view of the overall structure of this utility model.

[0009] Figure 2 This is a side view of the overall structure of this utility model.

[0010] Figure 3 This is a top view of the overall structure of this utility model.

[0011] Figure 4 This is a schematic diagram of the first connecting plate, the second connecting plate, and the clamping rod of this utility model.

[0012] The attached diagram is labeled as follows: 1. Base; 2. First connecting plate; 3. Second connecting plate; 4. Clamping rod; 5. Motor; 6. Gear; 7. Tray; 8. Toothed rod; 9. Slide; 10. Limiting frame; 11. Limiting wheel. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] This embodiment discloses a stable gearbox limiting device, which aims to solve the problems in the prior art where the gearbox is prone to excessive movement during gear shifting or adjustment, which can lead to damage to the gear surface, power interruption, and failure of key components.

[0015] Specifically, the stable gearbox limiting device includes a base 1, which serves as the mounting base for the entire device. It is made of high-strength alloy material and can withstand the vibration and load generated during gearbox operation, thus preventing the base 1 from being deformed due to force and affecting the limiting accuracy.

[0016] A positioning and clamping assembly is provided on the base 1. This assembly is the core structure for achieving gearbox positioning. A first connecting plate 2 is provided at one end of the base 1, and a second connecting plate 3 is provided at the other end. The first connecting plate 2 and the second connecting plate 3 are relatively parallel to each other to ensure that the clamping force on the gearbox is uniform and symmetrical. A clamping rod 4 is detachably connected to the top of both the first connecting plate 2 and the second connecting plate 3 by bolts. The inner side wall of the clamping rod 4 is covered with a rubber buffer pad. When the clamping rod 4 contacts the outer wall of the gearbox, it can effectively alleviate the squeezing damage to the gearbox shell caused by the clamping force, and at the same time reduce the vibration and friction noise between the gearbox and the clamping rod 4 during operation.

[0017] A motor 5 is bolted to the base 1 between the first connecting plate 2 and the second connecting plate 3. The motor 5 is a servo motor, which can achieve precise speed and direction control. Its output end is fixedly connected to the gear 6 through a coupling. When the motor 5 is working, it can drive the gear 6 to rotate clockwise or counterclockwise. A tray 7 is provided on the top of the gear 6. The tray 7 is rotatably connected to the gear 6 through a bearing. That is, when the gear 6 rotates, the tray 7 remains stationary. The upper surface of the tray 7 and the inner side wall of the clamping rod 4 together form a limiting cavity for placing the gearbox. After the gearbox is placed on the tray 7, it is constrained to prevent the gearbox from shifting in the horizontal or vertical direction.

[0018] On the side of the first connecting plate 2 and the second connecting plate 3 closest to the gear 6, a rack 8 is integrally formed. The teeth of both racks 8 face the gear 6, and the length direction of the racks 8 is consistent with the length direction of the base 1. The racks 8 extend to the outside of the gear 6 and mesh with the gear 6 to form a gear and rack transmission mechanism. When the motor 5 drives the gear 6 to rotate clockwise, the rack 8 on the left moves to the right along the length direction of the base 1, and the rack 8 on the right moves to the left simultaneously. This causes the first connecting plate 2 and the second connecting plate 3 to move closer to each other, so that the clamping rod 4 gradually clamps the gearbox. Conversely, when the gear 6 rotates counterclockwise, the two racks 8 drive the connecting plates to move away from each other, so that the gearbox can be released for installation or disassembly.

[0019] To further improve the stability of the rack 8's movement and prevent it from shifting or jamming during transmission, the device is also equipped with the following auxiliary structures: As attached Figure 2 As shown, slide blocks 9 are slidably connected to the bottom of both the first connecting plate 2 and the second connecting plate 3 via sliders. The slide blocks 9 are fixedly installed on the base 1 by expansion bolts, and the sliding trajectory of the slide blocks 9 is consistent with the moving direction of the rack 8. When the rack 8 drives the connecting plate to move, the slider at the bottom of the connecting plate will slide along the groove of the slide block 9. The slide block 9 can guide the movement of the connecting plate, ensuring that the connecting plate always moves in a straight line and avoiding misalignment between the clamping rod 4 and the gearbox due to the offset of the connecting plate.

[0020] On the side of each rack 8 furthest from the gear 6, a limiting frame 10 is bolted to the base 1. The limiting frame 10 has an L-shaped structure, and a limiting wheel 11 is rotatably connected to its vertical section via a pin. The wheel surface of the limiting wheel 11 abuts against the side of the rack 8 and maintains rolling contact with the rack 8. The limiting wheel 11 can limit the lateral displacement of the rack 8, preventing the rack 8 from deviating away from the gear 6 during transmission and ensuring that the rack 8 and gear 6 always maintain stable meshing. On the other hand, the rolling contact can convert the sliding friction between the rack 8 and the limiting frame 10 into rolling friction, significantly reducing the resistance when the rack 8 moves, reducing component wear, and extending the service life of the device.

[0021] The specific working principle is as follows: First, control the motor 5 to reverse, so that the gear 6 drives the two racks 8 to move away from each other, thereby increasing the distance between the first connecting plate 2 and the second connecting plate 3, and hoisting the gearbox to be limited onto the tray 7, ensuring that the center of the gearbox is roughly aligned with the center of the limiting cavity.

[0022] When motor 5 is started and rotates forward, it drives gear 6 to rotate. Through the meshing transmission between gear 6 and rack 8, the first connecting plate 2 and the second connecting plate 3 move synchronously towards the gearbox until the buffer pad on the inner side of the clamping rod 4 is in close contact with the outer wall of the gearbox. At this time, the clamping force threshold is set by the servo control system of motor 5. When the clamping force reaches the preset value, motor 5 automatically stops working, completing the clamping limit of the gearbox.

[0023] During gearbox operation, if there is a tendency to deviate during gear shifting or adjustment, the constraint of the limiting cavity can promptly limit the gearbox's out-of-range movement. The tray 7 prevents the gearbox from falling downwards, the clamping rod 4 prevents the gearbox from shifting to the left or right, and the buffer pad absorbs vibration and impact. At the same time, the limiting wheel 11 and the slide 9 together ensure that the rack 8 and the connecting plate will not be displaced due to the reaction force of the gearbox, maintaining a stable clamping state.

[0024] When the gearbox needs to be disassembled, simply reverse the motor 5 to move the connecting plate and clamping rod 4 away from the gearbox, and the gearbox can be removed from the tray 7. The operation is convenient and efficient.

[0025] 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, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stable gearbox limiting device, comprising a base (1), characterized in that: The base (1) is provided with a positioning and clamping assembly; The positioning and clamping assembly includes a first connecting plate (2) disposed at one end of the base (1), a second connecting plate (3) disposed at the other end of the base (1), clamping rods (4) respectively disposed on the top of the first connecting plate (2) and the second connecting plate (3), a motor (5) disposed between the first connecting plate (2) and the second connecting plate (3), a gear (6) disposed at the output end of the motor (5), and a rack (8) respectively disposed on one side of the first connecting plate (2) and the second connecting plate (3), and each rack (8) extends to the outside of the gear (6) and meshes with the gear (6).

2. The stable gearbox limiting device according to claim 1, characterized in that: The top of the gear (6) is provided with a tray (7), which is rotatably connected to the gear (6). A limiting cavity for placing the gearbox is formed between the tray (7) and the clamping rod (4).

3. The stable gearbox limiting device according to claim 1, characterized in that: The bottom of the first connecting plate (2) and the second connecting plate (3) are respectively slidably connected to the slide block (9), and the slide block (9) is installed on the base (1) by bolts.

4. The stable gearbox limiting device according to claim 1, characterized in that: Each of the two racks (8) is provided with a limit bracket (10) on the side away from the gear (6), and each limit bracket (10) is mounted on the base (1) by bolts.

5. A stable gearbox limiting device according to claim 4, characterized in that: Each of the two limiting frames (10) is rotatably connected to a limiting wheel (11), and each limiting wheel (11) abuts against the side of the rack (8) and is in contact with the rack (8).

6. The stable gearbox limiting device according to claim 1, characterized in that: The first connecting plate (2) and the second connecting plate (3) are arranged opposite to each other, and the top of the first connecting plate (2) and the second connecting plate (3) are respectively provided with buffer pads.

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