Gear reducer with dustproof structure

Abstract

The utility model discloses a gear reducer with a dustproof structure, which belongs to the technical field of gear reducers and is characterized by comprising a reducer body, a rotating shaft and a protective frame are arranged on the front side of the reducer body, a dustproof mechanism and an auxiliary mechanism are arranged on the surface of the rotating shaft, and two sealing grooves are formed in the surface of the rotating shaft; the dustproof mechanism comprises a limiting pad, a fixing ring, two dustproof pads, two fixing frames and a limiting cover, the surface of the limiting pad is fixedly connected with the interior of the protection frame, and the problems that rotating shafts of most existing gear reducers are sealed through oil seals, the oil seals are prone to aging along with time use, the sealing performance is reduced, and the sealing performance is poor are solved. The problems that lubricating rotation of a rotating shaft is polluted when dust enters, the performance of the lubricating grease is reduced after the dust is mixed with the lubricating grease, gear abrasion, reduction of tooth surface precision, increase of bearing clearance and the like are caused by the dust, and the service life of each key component of the gear speed reducer is shortened are solved.

Description

Technical Field

[0001] This utility model relates to the field of gear reducer technology, and in particular to a gear reducer with a dustproof structure. Background Technology

[0002] A gear reducer is a power transmission mechanism that uses the meshing principle of gears to reduce the speed of a motor while increasing the torque.

[0003] Existing gear reducers do not have fault warning functions. When a fault occurs inside, they cannot provide timely warnings and notifications, which leads to significant damage to their internal components and affects their service life.

[0004] An existing patent (publication number: CN219176908U) discloses a gear reducer, including a gear reducer body, an alarm light screwed onto the surface of the gear reducer body, and a monitoring probe for real-time monitoring of the gear set inside the gear reducer body. Adjusting the drive motor changes the monitoring angle of the monitoring probe, and adjusting the regulating cylinder changes the monitoring position of the monitoring probe, enabling monitoring of different positions of the gear set, avoiding blind spots, and ensuring monitoring quality. Upon detecting a gear set fault, the drive cylinder extends to the right, causing the pressing slider to contact the surface of the contact switch, thereby causing the alarm light to flash and sound an alarm. Vibration and noise sensors monitor vibration and noise within the gear reducer body, further ensuring the quality and lifespan of the gear reducer body, making it suitable for widespread application.

[0005] To address the aforementioned issues, existing patents offer solutions. However, these solutions have certain limitations in practice. Most gear reducer shafts are sealed with oil seals, but these seals tend to age and lose their sealing performance over time. Dust can contaminate the lubrication of the shaft, and when dust mixes with grease, it reduces the performance of the grease. Furthermore, dust-induced wear, reduced tooth surface precision, and increased bearing clearance shorten the lifespan of various critical components of the gear reducer.

[0006] Therefore, a gear reducer with a dustproof structure is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a gear reducer with a dustproof structure, which can solve the problem that most existing gear reducers use oil seals to seal the rotating shaft. However, with the use of time, the oil seals are prone to aging and the sealing performance decreases. The entry of dust will contaminate the lubrication of the rotating shaft. When dust mixes with grease, it will reduce the performance of the grease. Furthermore, dust will cause problems such as gear wear, reduced tooth surface accuracy, and increased bearing clearance, which will shorten the life of various key components of the gear reducer.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a gear reducer with a dustproof structure, comprising a body, a rotating shaft and a protective frame provided on the front side of the body, a dustproof mechanism and an auxiliary mechanism provided on the surface of the rotating shaft, and two sealing grooves provided on the surface of the rotating shaft;

[0009] The dustproof mechanism includes a limiting pad, a fixing ring, two dustproof pads, two fixing frames, and a limiting cover. The surface of the limiting pad is fixedly connected to the inside of the protective frame. The surface of the fixing ring is threadedly connected to the inside of the protective frame. The surface of the dustproof pad is fixedly connected to the inside of the fixing frame. The inside of the dustproof pad extends into the inside of the sealing groove and contacts the inside of the sealing groove. The inside of the limiting cover contacts the surface of the rotating shaft.

[0010] Preferably, the auxiliary mechanism includes a fixed sleeve fixedly connected inside the fixed ring, and a limit frame fixedly connected inside the fixed sleeve.

[0011] Preferably, a support frame is provided on the front side of the limiting frame, and a limiting plate is fixedly connected to the bottom of the support frame, with the surface of the limiting plate in close contact with the inside of the limiting cover.

[0012] Preferably, a cleaning brush is fixedly connected to the bottom of the limiting plate, and the bottom of the cleaning brush is in contact with the surface of the rotating shaft.

[0013] Preferably, the front side of the limiting frame is provided with an installation groove, and the rear side of the limiting cover extends into the interior of the installation groove and is fixedly connected to the interior of the installation groove.

[0014] Preferably, a limiting net is fixedly connected to the bottom inside the limiting cover, a connecting plate is fixedly connected to the rear side of the limiting net, a connecting groove is opened on the front side of the limiting frame, and the rear side of the connecting plate extends into the interior of the connecting groove and is in close contact with the interior of the connecting groove.

[0015] Preferably, the surface of the fixing sleeve is provided with four screws, the bottom of the screws passing through the fixing sleeve and extending into the interior of the support frame, and the surface of the screws being threadedly connected to the interior of the support frame.

[0016] Preferably, the surface of the protective frame is fixedly connected to a mounting ring, and the interior of the mounting ring is provided with six bolts. The rear side of the bolts passes through the mounting ring and extends into the interior of the machine body, and the surface of the bolts is threadedly connected to the interior of the machine body.

[0017] Preferably, the surface of the protective frame is provided with a protective pad, and the front and rear sides of the protective pad are in close contact with the mounting ring and the opposite side of the machine body, respectively.

[0018] Preferably, the interior of the machine body is provided with an oil seal, the interior of which is in contact with the surface of the rotating shaft, and a limit block is fixedly connected to the surface of the rotating shaft.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. Under the limiting of the limiting pad, the fixed frame drives the dustproof pad to move into the inside of the protective frame, so that the inside of the dustproof pad extends into the inside of the sealing groove and contacts the inside of the sealing groove, thereby facilitating the dustproof pad to seal and protect the surface of the rotating shaft through the limiting cover.

[0021] 2. This application ensures that the surface of the limiting plate is in close contact with the inside of the limiting cover, thereby fixing the fixing frame and the fixing sleeve by the screw. This allows the bottom of the cleaning soft brush to easily contact the surface of the rotating shaft, thus facilitating the cleaning of the surface of the rotating shaft and providing auxiliary dust prevention for the inside of the fixing sleeve. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the gear reducer with a dustproof structure according to this utility model;

[0023] Figure 2 This is a three-dimensional connection diagram of the protective frame and the fixing sleeve in this utility model;

[0024] Figure 3 This is a three-dimensional connection diagram of the dustproof mechanism in this utility model;

[0025] Figure 4 This is a three-dimensional connection diagram of the auxiliary mechanism in this utility model;

[0026] Figure 5 This is a three-dimensional connection diagram of the limiting mesh and the limiting cover in this utility model;

[0027] Figure 6 This is a three-dimensional schematic diagram of the connection between the oil seal and the rotating shaft in this utility model.

[0028] In the diagram, 1. Body; 2. Dustproof mechanism; 201. Fixing sleeve; 202. Support frame; 203. Limiting plate; 204. Cleaning brush; 205. Limiting frame; 3. Rotating shaft; 4. Limiting block; 5. Sealing groove; 6. Auxiliary mechanism; 601. Limiting pad; 602. Fixing ring; 603. Dustproof pad; 604. Fixing frame; 605. Limiting cover; 7. Protective frame; 8. Screw; 9. Mounting ring; 10. Protective pad; 11. Oil seal; 12. Bolt; 13. Connecting groove; 14. Mounting groove; 15. Limiting net; 16. Connecting plate. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-6 The present invention provides the following technical solution:

[0031] A gear reducer with a dustproof structure includes a body 1, a rotating shaft 3 and a protective frame 7 are provided on the front side of the body 1, a dustproof mechanism 2 and an auxiliary mechanism 6 are provided on the surface of the rotating shaft 3, and two sealing grooves 5 are opened on the surface of the rotating shaft 3.

[0032] The dustproof mechanism 2 includes a limiting pad 601, a fixing ring 602, two dustproof pads 603, two fixing frames 604, and a limiting cover 605. The surface of the limiting pad 601 is fixedly connected to the inside of the protective frame 7, the surface of the fixing ring 602 is threadedly connected to the inside of the protective frame 7, the surface of the dustproof pad 603 is fixedly connected to the inside of the fixing frame 604, the inside of the dustproof pad 603 extends into the inside of the sealing groove 5 and contacts the inside of the sealing groove 5, and the inside of the limiting cover 605 contacts the surface of the rotating shaft 3.

[0033] In this embodiment: by extending the rear side of the protective frame 7 into the interior of the body 1 and making close contact with the interior of the body 1, the protective frame 7 can be conveniently positioned by the limiting pad 601 to limit the fixing ring 602, thereby facilitating the fixing ring 602 to move the dustproof pad 603 into the interior of the protective frame 7 through the fixing frame 604, so that the interior of the dustproof pad 603 extends into the interior of the sealing groove 5 and makes contact with the interior of the sealing groove 5, thereby facilitating the dustproof pad 603 to seal and protect the surface of the rotating shaft 3 through the limiting cover 605.

[0034] Specifically, such as Figure 3 As shown, the auxiliary mechanism 6 includes a fixed sleeve 201 fixedly connected inside the fixed ring 602, and a limit frame 205 fixedly connected inside the fixed sleeve 201.

[0035] Specifically, such as Figure 3 As shown, a support frame 202 is provided on the front side of the limiting frame 205, and a limiting plate 203 is fixedly connected to the bottom of the support frame 202. The surface of the limiting plate 203 is in close contact with the inside of the limiting cover 605.

[0036] Specifically, such as Figure 2 , Figure 3 As shown, a cleaning brush 204 is fixedly connected to the bottom of the limiting plate 203, and the bottom of the cleaning brush 204 is in contact with the surface of the rotating shaft 3.

[0037] In this embodiment: by fixing the top of the limiting plate 203 to the bottom of the support frame 202, the support frame 202 can easily fix and support the cleaning brush 204 through the limiting plate 203, thereby making it easy for the surface of the limiting plate 203 to be in close contact with the inside of the limiting cover 605, and making it easy for the bottom of the cleaning brush 204 to be in contact with the surface of the rotating shaft 3, thus achieving the effect of auxiliary cleaning and dust prevention on the surface of the rotating shaft 3.

[0038] Specifically, such as Figure 4 As shown, the front side of the limiting bracket 205 is provided with a mounting groove 14, and the rear side of the limiting cover 605 extends into the interior of the mounting groove 14 and is fixedly connected to the interior of the mounting groove 14.

[0039] Specifically, such as Figure 4 , Figure 5 As shown, a limiting net 15 is fixedly connected to the bottom of the limiting cover 605, and a connecting plate 16 is fixedly connected to the rear side of the limiting net 15. A connecting groove 13 is opened on the front side of the limiting frame 205, and the rear side of the connecting plate 16 extends into the interior of the connecting groove 13 and is in close contact with the interior of the connecting groove 13.

[0040] In this embodiment: by opening an installation groove 14 and a connecting groove 13 on the front side of the limiting frame 205, the limiting cover 605 can easily move the connecting plate 16 into the interior of the installation groove 14 for fixed installation, thereby facilitating the connecting groove 13 to limit the limiting cover 605 through the connecting plate 16, achieving the effect of limiting the limiting cover 605.

[0041] Specifically, such as Figure 3 As shown, the surface of the fixing sleeve 201 is provided with four screws 8. The bottom of the screws 8 passes through the fixing sleeve 201 and extends into the interior of the support frame 202. The surface of the screws 8 is threadedly connected to the interior of the support frame 202.

[0042] Specifically, such as Figure 1 , Figure 4 As shown, a mounting ring 9 is fixedly connected to the surface of the protective frame 7. Six bolts 12 are provided inside the mounting ring 9. The rear side of the bolts 12 passes through the mounting ring 9 and extends into the interior of the body 1. The surface of the bolts 12 is threadedly connected to the interior of the body 1.

[0043] In this embodiment: by connecting the surface of the screw 8 with the internal thread of the support frame 202, the bolt 12 can be easily fixed to the support frame 202 through the fixing sleeve 201, and the interior of the mounting ring 9 can be fixedly connected to the surface of the protective frame 7, thereby making it easy to fix the protective frame 7 by the mounting ring 9 through the bolt 12, thus achieving the effect of fixing the protective frame 7.

[0044] Specifically, such as Figure 1, Figure 4 As shown, the surface of the protective frame 7 is provided with a protective pad 10, and the front and rear sides of the protective pad 10 are in close contact with the mounting ring 9 and the opposite side of the body 1, respectively.

[0045] Specifically, such as Figure 2 , Figure 5 As shown, an oil seal 11 is provided inside the body 1. The inside of the oil seal 11 is in contact with the surface of the rotating shaft 3. A limit block 4 is fixedly connected to the surface of the rotating shaft 3.

[0046] In this embodiment: by providing a protective pad 10 on the surface of the protective frame 7, the protective pad 10 can easily protect the mounting ring 9 and the machine body 1, and the inside of the oil seal 11 can contact the surface of the rotating shaft 3, thereby facilitating the oil seal 11 to prevent dust from the surface of the rotating shaft 3, achieving the effect of preventing dust from the surface of the rotating shaft 3.

[0047] Working principle: When dust protection is applied to the surface of the rotating shaft 3, the rear side of the protective frame 7 extends into the interior of the machine body 1 and makes close contact with the interior of the machine body 1. The mounting ring 9 is fixed to the protective frame 7 by bolts 12, thereby protecting the protective frame 7 with the protective pad 10. Then, the fixing sleeve 201 moves into the interior of the protective frame 7 through the fixing ring 602. Under the limitation of the limiting pad 601, the fixing frame 604 drives the dustproof pad 603 to move into the interior of the protective frame 7, so that the interior of the dustproof pad 603 extends into the interior of the sealing groove 5 and makes contact with the interior of the sealing groove 5. This facilitates the dustproof pad 603 to seal and protect the surface of the rotating shaft 3 through the limiting cover 605. Then, the support frame 202 drives the cleaning soft brush 204 to move to the front of the limiting frame 205 through the limiting plate 203. The side is designed to ensure that the surface of the limiting plate 203 is in close contact with the inside of the limiting cover 605, thereby fixing the fixing bracket 604 and the fixing sleeve 201 by the screw 8. This allows the bottom of the cleaning soft brush 204 to easily contact the surface of the rotating shaft 3, facilitating the cleaning of the surface of the rotating shaft 3. It also facilitates auxiliary dust prevention inside the fixing sleeve 201. This solves the problem that in most existing gear reducers, the rotating shaft 3 is sealed by an oil seal 11, but over time, the oil seal 11 is prone to aging and its sealing performance decreases. The entry of dust will contaminate the lubrication and rotation of the rotating shaft 3. When dust mixes with grease, it will reduce the performance of the grease. Furthermore, dust will cause problems such as gear wear, reduced tooth surface accuracy, and increased bearing clearance, shortening the life of various key components of the gear reducer.

[0048] 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 reducer with a dustproof structure, comprising a body (1), characterized in that: The front side of the body (1) is provided with a rotating shaft (3) and a protective frame (7). The surface of the rotating shaft (3) is provided with a dustproof mechanism (2) and an auxiliary mechanism (6). The surface of the rotating shaft (3) has two sealing grooves (5). The dustproof mechanism (2) includes a limiting pad (601), a fixing ring (602), two dustproof pads (603), two fixing frames (604), and a limiting cover (605). The surface of the limiting pad (601) is fixedly connected to the inside of the protective frame (7). The surface of the fixing ring (602) is threadedly connected to the inside of the protective frame (7). The surface of the dustproof pad (603) is fixedly connected to the inside of the fixing frame (604). The inside of the dustproof pad (603) extends into the inside of the sealing groove (5) and contacts the inside of the sealing groove (5). The inside of the limiting cover (605) contacts the surface of the rotating shaft (3).

2. The gear reducer with a dustproof structure according to claim 1, characterized in that: The auxiliary mechanism (6) includes a fixed sleeve (201) fixedly connected inside a fixed ring (602), and a limit frame (205) fixedly connected inside the fixed sleeve (201).

3. A gear reducer with a dustproof structure according to claim 2, characterized in that: A support frame (202) is provided on the front side of the limiting frame (205), and a limiting plate (203) is fixedly connected to the bottom of the support frame (202). The surface of the limiting plate (203) is in close contact with the inside of the limiting cover (605).

4. A gear reducer with a dustproof structure according to claim 3, characterized in that: A cleaning brush (204) is fixedly connected to the bottom of the limiting plate (203), and the bottom of the cleaning brush (204) is in contact with the surface of the rotating shaft (3).

5. A gear reducer with a dustproof structure according to claim 3, characterized in that: The front side of the limiting frame (205) is provided with an installation groove (14), and the rear side of the limiting cover (605) extends into the interior of the installation groove (14) and is fixedly connected to the interior of the installation groove (14).

6. A gear reducer with a dustproof structure according to claim 3, characterized in that: The bottom of the limiting cover (605) is fixedly connected to a limiting net (15), and a connecting plate (16) is fixedly connected to the rear side of the limiting net (15). A connecting groove (13) is opened on the front side of the limiting frame (205), and the rear side of the connecting plate (16) extends into the interior of the connecting groove (13) and is in close contact with the interior of the connecting groove (13).

7. A gear reducer with a dustproof structure according to claim 3, characterized in that: The surface of the fixing sleeve (201) is provided with four screws (8), the bottom of the screws (8) passes through the fixing sleeve (201) and extends into the interior of the support frame (202), and the surface of the screws (8) is threadedly connected to the interior of the support frame (202).

8. A gear reducer with a dustproof structure according to claim 1, characterized in that: The protective frame (7) is fixedly connected to a mounting ring (9), and six bolts (12) are provided inside the mounting ring (9). The rear side of the bolts (12) passes through the mounting ring (9) and extends into the interior of the body (1). The surface of the bolts (12) is threadedly connected to the interior of the body (1).

9. A gear reducer with a dustproof structure according to claim 8, characterized in that: The protective frame (7) is provided with a protective pad (10) on its surface. The front and rear sides of the protective pad (10) are in close contact with the mounting ring (9) and the opposite side of the body (1), respectively.

10. A gear reducer with a dustproof structure according to claim 1, characterized in that: An oil seal (11) is provided inside the body (1). The inside of the oil seal (11) is in contact with the surface of the rotating shaft (3). A limit block (4) is fixedly connected to the surface of the rotating shaft (3).

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