Gear reducer capable of preventing reversion

Abstract

The utility model relates to the technical field of speed reducers, and discloses an anti-reversion gear speed reducer which comprises a shell, an input shaft rotationally connected to the side portion of the shell, a transmission assembly arranged on the side portion of the inner wall of the shell, a worm rotationally connected to the side portion of the inner wall of the shell and a rotating shaft rotationally connected to the inner wall of the shell. A gear is fixedly connected to the outer surface of the worm, a worm gear is fixedly connected to the outer surface of the rotating shaft, a limiting assembly is arranged on the upper surface of the shell, and in order to enable equipment to be excessively abraded when the equipment is reversed, when the equipment is not used, the rotating piece is rotated, the limiting piece moves downwards, and a protruding block arranged at the bottom of the limiting piece is clamped between teeth on the outer surface of the gear; the worm gear is meshed with the worm, so that the worm is limited, the worm cannot rotate when the input shaft of the equipment rotates reversely, the worm gear rotates when the rotating shaft rotates reversely, and the worm gear is meshed with the worm, so that the worm cannot rotate when the rotating shaft rotates reversely.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a reverse-resistant gear reducer. Background Technology

[0002] Gear reducers are widely used in East my country as slewing mechanisms in tower cranes, and are also widely applied in metallurgy, mining, hoisting, transportation, cement, construction, chemical, textile, printing and dyeing, and pharmaceutical industries. Gear reducers are generally used in low-speed, high-torque transmission equipment, utilizing multiple stages of gear transmission to achieve speed reduction.

[0003] According to a gear reducer with a high-precision anti-reverse structure (Announcement No.: CN219588060U), the first gear and the third gear are in a meshing state under the adjustment of the clamping spring through the anti-reverse unit, and the third gear will be prevented from reversing, thereby preventing the reduction of the service life of the gear reducer and improving the performance of the gear reducer.

[0004] However, in actual use, the above-mentioned equipment will cause friction between the third gear and the anti-reverse unit during the reverse process, resulting in excessive wear on the outer surface of the third gear; in view of this, we propose an anti-reverse gear reducer. Utility Model Content

[0005] The purpose of this invention is to provide a non-reversible gear reducer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reversible gear reducer, comprising a housing, an input shaft rotatably connected to the side of the housing, a transmission assembly disposed on the side of the inner wall of the housing, a worm gear rotatably connected to the side of the inner wall of the housing, a rotating shaft rotatably connected to the inner wall of the housing, a gear fixedly connected to the outer surface of the worm gear, a worm wheel fixedly connected to the outer surface of the rotating shaft, and a limit assembly disposed on the upper surface of the housing, the limit assembly comprising:

[0007] The mounting component is fixedly connected to the upper surface of the housing, and a rotating component is rotatably connected to the bottom of the inner wall of the mounting component. A limit component is threadedly connected to the outer surface of the rotating component.

[0008] The feed inlet is fixedly connected to the upper surface of the limiting member. The limiting member has a guide groove inside, and the inner wall of the guide groove has a discharge port.

[0009] Preferably, the transmission component meshes with the gear, and the end of the input shaft is connected to the transmission component through the housing, so that when the input shaft rotates, the gear will rotate through the transmission component.

[0010] Preferably, the bottom of the limiting member is provided with a protrusion, and the position of the limiting member corresponds to the position of the gear, which allows the limiting member to effectively limit the gear.

[0011] Preferably, the position of the worm corresponds to the position of the worm wheel, and the worm and the worm wheel mesh, so that when the worm rotates, it drives the worm wheel to rotate.

[0012] Preferably, a guide assembly is provided at the top of the inner wall of the housing. The guide assembly includes a guide member, which is fixedly connected to the top of the inner wall of the housing. A through hole is provided on the side of the inner wall of the guide member, and a discharge hole is provided at the bottom of the guide member.

[0013] Preferably, the position of the discharge hole corresponds to the position of the discharge port, and the size of the discharge hole is adapted to the size of the discharge port.

[0014] Preferably, the inner wall of the guide is inclined, and the position of the guide corresponds to the position of the worm gear.

[0015] Compared with the prior art, this utility model provides a reverse-proof gear reducer, which has the following beneficial effects:

[0016] 1. This anti-reverse gear reducer, to prevent excessive wear during reverse rotation, allows the rotating component to be rotated when the equipment is not in use. This causes the limiting component to move downwards, allowing the protrusion at the bottom of the limiting component to engage with the teeth on the outer surface of the gear, thus limiting the worm. This prevents the worm from rotating when the input shaft reverses, and when the shaft is about to reverse, the worm wheel will rotate, meshing with the worm. This also prevents the worm from rotating when the shaft is about to reverse. Furthermore, during lubrication, lubricating oil is introduced through the feed inlet and flows into the housing through the guide groove, thus lubricating the equipment.

[0017] 2. This anti-reverse gear reducer, in order to facilitate lubrication, has a corresponding outlet and through hole position after the gear is stopped by the limiting component. This allows lubricating oil to enter the guide component through the through hole. After entering the guide component, the bottom of the inner wall of the guide component is inclined, allowing the lubricating oil to be discharged from the discharge hole during the flow process. This ensures that the lubricating oil accurately drips onto the outer surface of the gear and the outer surface of the worm for lubrication, thus allowing the equipment to be better lubricated. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional left-side structure of this utility model;

[0019] Figure 2This is an enlarged structural diagram of area A of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the guiding component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0023] In the diagram: 1. Housing; 2. Rotating shaft; 3. Worm gear; 4. Input shaft; 5. Transmission assembly; 6. Worm; 7. Limiting assembly; 701. Mounting component; 702. Rotating component; 703. Limiting component; 705. Feed inlet; 706. Guide groove; 707. Discharge outlet; 8. Guide assembly; 801. Guide component; 802. Through hole; 803. Discharge hole; 9. Gear. Detailed Implementation

[0024] like Figures 1-5 As shown, this utility model provides a technical solution: a reversible gear reducer, including a housing 1, an input shaft 4 rotatably connected to the side of the housing 1, the end of the input shaft 4 penetrating the housing 1 and connected to a transmission assembly 5, so that when the input shaft 4 rotates, it causes the gear 9 to rotate through the transmission assembly 5. The transmission assembly 5 is provided on the inner wall side of the housing 1, and the transmission assembly 5 meshes with the gear 9. A worm 6 is rotatably connected to the inner wall side of the housing 1, the position of the worm 6 corresponding to the position of the worm wheel 3, and the worm 6 meshes with the worm wheel 3, so that when the worm 6 rotates, it drives the worm wheel 3 to rotate. A rotating shaft 2 is rotatably connected to the inner wall of the housing 1, the gear 9 is fixedly connected to the outer surface of the worm 6, and the worm wheel 3 is fixedly connected to the outer surface of the rotating shaft 2. A limit assembly 7 is provided on the upper surface of the housing 1, the limit assembly 7 including a mounting part 701, a rotating part 702, a limit part 703, a feed port 705, a guide groove 706, and a discharge port 707.

[0025] In an embodiment of this utility model, the mounting member 701 is fixedly connected to the upper surface of the housing 1. A rotating member 702 is rotatably connected to the bottom of the inner wall of the mounting member 701. A limiting member 703 is threadedly connected to the outer surface of the rotating member 702. A protrusion is provided at the bottom of the limiting member 703. The position of the limiting member 703 corresponds to the position of the gear 9, which allows the limiting member 703 to effectively limit the gear 9. The feed port 705 is fixedly connected to the upper surface of the limiting member 703. A guide groove 706 is provided inside the limiting member 703. A discharge port 707 is provided on the side of the inner wall of the guide groove 706.

[0026] Meanwhile, a guide assembly 8 is provided on the top of the inner wall of the housing 1. The guide assembly 8 includes a guide member 801, which is fixedly connected to the top of the inner wall of the housing 1. The inner wall of the guide member 801 is inclined, and the position of the guide member 801 corresponds to the position of the worm gear 6. A through hole 802 is provided on the side of the inner wall of the guide member 801, and a discharge hole 803 is provided at the bottom of the guide member 801. The position of the discharge hole 803 corresponds to the position of the discharge port 707, and the size of the discharge hole 803 is adapted to the size of the discharge port 707. This allows the outlet 707 to correspond to the through hole 802 after the gear 9 is stopped by the limiting member 703. This allows lubricating oil to enter the guide member 801 through the through hole 802. After the lubricating oil enters the guide member 801, the bottom of the inner wall of the guide member 801 is inclined, allowing the lubricating oil to be discharged from the discharge hole 803 during the flow process. This ensures that the lubricating oil will accurately drip onto the outer surface of the gear 9 and the outer surface of the worm 6 for lubrication, thus allowing the equipment to be better lubricated.

[0027] In this invention, when the equipment is not in use, rotating the rotating part 702 causes the limiting part 703 to move downwards, allowing the protrusion at the bottom of the limiting part 703 to engage with the teeth on the outer surface of the gear 9, thereby limiting the worm 6. This prevents the worm 6 from rotating when the input shaft 4 reverses, and causes the worm wheel 3 to rotate when the shaft 2 reverses. The worm wheel 3 meshes with the worm 6, preventing the worm 6 from rotating when the shaft 2 reverses. When the equipment is lubricated, lubricating oil is introduced through the feed port 705 and flows into the housing 1 through the guide groove 706, thus lubricating the equipment.

[0028] Furthermore, after the limiting member 703 limits the gear 9, the outlet 707 corresponds to the position of the through hole 802. This allows the lubricating oil to enter the guide member 801 through the through hole 802. After the lubricating oil enters the guide member 801, the bottom of the inner wall of the guide member 801 is inclined, allowing the lubricating oil to be discharged from the discharge hole 803 during the flow process. This allows the lubricating oil to accurately drip onto the outer surface of the gear 9 and the outer surface of the worm 6 for lubrication, thus allowing the equipment to be better lubricated.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A reversible gear reducer, comprising a housing (1), an input shaft (4) rotatably connected to the side of the housing (1), a transmission assembly (5) provided on the side of the inner wall of the housing (1), a worm gear (6) rotatably connected to the side of the inner wall of the housing (1), a rotating shaft (2) rotatably connected to the inner wall of the housing (1), a gear (9) fixedly connected to the outer surface of the worm gear (6), and a worm wheel (3) fixedly connected to the outer surface of the rotating shaft (2), characterized in that: A limiting component (7) is provided on the upper surface of the housing (1), and the limiting component (7) includes: Mounting component (701) is fixedly connected to the upper surface of housing (1). A rotating component (702) is rotatably connected to the bottom of the inner wall of the mounting component (701). A limiting component (703) is threadedly connected to the outer surface of the rotating component (702). The feed inlet (705) is fixedly connected to the upper surface of the limiting member (703). The limiting member (703) has a guide groove (706) inside, and the inner wall of the guide groove (706) has a discharge port (707).

2. The anti-reverse gear reducer according to claim 1, characterized in that: The transmission assembly (5) meshes with the gear (9), and the end of the input shaft (4) is connected to the transmission assembly (5) through the housing (1).

3. The anti-reverse gear reducer according to claim 1, characterized in that: The bottom of the limiting member (703) is provided with a protrusion, and the position of the limiting member (703) corresponds to the position of the gear (9).

4. The anti-reverse gear reducer according to claim 1, characterized in that: The worm (6) is positioned corresponding to the worm wheel (3), and the worm (6) meshes with the worm wheel (3).

5. A reversible gear reducer according to claim 1, characterized in that: A guide assembly (8) is provided on the top of the inner wall of the housing (1). The guide assembly (8) includes a guide member (801). The guide member (801) is fixedly connected to the top of the inner wall of the housing (1). A through hole (802) is provided on the side of the inner wall of the guide member (801). A discharge hole (803) is provided at the bottom of the guide member (801).

6. A reversible gear reducer according to claim 5, characterized in that: The position of the discharge hole (803) corresponds to the position of the discharge port (707), and the size of the discharge hole (803) is adapted to the size of the discharge port (707).

7. A reversible gear reducer according to claim 5, characterized in that: The inner wall of the guide (801) is inclined, and the position of the guide (801) corresponds to the position of the worm (6).

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