Highly waterproof speed reducer

Abstract

The utility model relates to the technical field of speed reducers and discloses a highly waterproof speed reducer which comprises a machine body, a driving rod is rotatably connected to the inner wall of the machine body, an input port is formed in the side, away from the driving rod, of the machine body, a waterproof structure is arranged on the arc face of the driving rod, and the waterproof structure comprises a circular ring. The inner wall of the circular ring is fixedly connected with the driving rod, the arc surface of the circular ring is in threaded connection with a threaded ring, a conical cover is slidably connected to the position, opposite to one side of the threaded ring, of the arc surface of the driving rod, a threaded rod penetrates through the arc surface of the threaded ring in a threaded mode, and a threaded groove is formed in the arc surface of the driving rod. According to the high-waterproof speed reducer, the waterproof effect between the machine body and the driving rod is achieved, and the problems that the firmness is low in the mode that a sealing ring is glued, and the overall waterproof performance of the device is prone to being affected due to the high installation angle are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a highly waterproof reducer. Background Art

[0002] A reducer is an independent component consisting of a gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine, matching the speed and transmitting torque between the prime mover and the working machine or actuator. Among them, there is a planetary reducer that is used as a supporting component in lifting, excavation, transportation, construction and other industries. Its main transmission structure is composed of bearings, planetary gears, sun gears, internal gear rings, etc. A sealing ring is usually installed between the drive rod and the machine body for waterproofing.

[0003] The above-mentioned and existing related technologies often have the following defects: a sealing ring is installed between the driving rod and the body by gluing for waterproofing, but the sealing ring and the driving rod are in continuous rotation. Therefore, after the driving rod has been working for a long time, it is easy for the connection strength between the sealing ring and the body to be reduced due to its own rotation, and friction and wear will be caused between the sealing ring and the driving rod. In addition, the installation accuracy of the sealing ring is high. Once it is improperly installed, water ingress is likely to occur, which not only reduces the sealing between the driving rod and the body, but also causes water droplets to be brought into the body by the driving rod in a complex environment, causing rust on the transmission component.

[0004] To this end, we propose a highly waterproof reducer. Utility Model Content

[0005] The purpose of the present utility model is to provide a highly waterproof reducer to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highly waterproof reducer, comprising a body, the inner wall of the body being rotatably connected to a drive rod, an input port being installed on the side of the body away from the drive rod, the arc surface of the drive rod being provided with a waterproof structure, the waterproof structure comprising a ring, the inner wall of the ring being fixedly connected to the drive rod, the arc surface of the ring being threadedly connected to a threaded ring, the arc surface of the drive rod being slidably connected to a conical cover relative to one side of the threaded ring, a screw being threaded through the arc surface of the threaded ring, a screw being threaded through the arc surface of the drive rod, a screw groove being provided on the arc surface of the drive rod, and the arc surface of the screw being threadedly connected to the inner wall of the screw groove.

[0007] The effect achieved by the above components is: achieving the effect of waterproofing between the body and the drive rod, thereby avoiding as much as possible the problem of low firmness of the adhesive sealing ring and the high installation angle that easily affects the overall waterproofness of the device.

[0008] Preferably, an inner groove is formed on the arc surface of the conical cover, a soft pad is slidably connected to the inner wall of the inner groove, and the arc surface of the soft pad abuts against the inner wall of the body.

[0009] The effects achieved by the above components are: the conical cover drives the cushion to fit the inner wall of the machine body, and the cushion serves to improve the filling capacity between the conical cover and the machine body.

[0010] Preferably, the inner wall of the inner groove is evenly and fixedly connected with a plurality of convex plates, and the inner wall of the cushion is provided with grooves at positions relative to the plurality of convex plates, and the inner walls of the grooves are in contact with the convex plates.

[0011] The effect achieved by the above components is that the cushion moves so that the groove is sleeved on the surface of the convex plate, and the convex plate achieves the effect of improving the stability of the cushion itself.

[0012] Preferably, the arc surface of the threaded ring is evenly provided with a plurality of arc grooves, and the plurality of arc grooves are all located on a side away from the conical cover.

[0013] The effect achieved by the above components is: the threaded ring is driven to rotate by means of the circular arc groove, and the circular arc groove plays a role in increasing the friction resistance of the threaded ring.

[0014] Preferably, a protective structure is provided on the upper surface of the body, and the protective structure includes a U-shaped plate, the lower surface of the U-shaped plate is fixedly connected to the body, a long rod is slidably passed through one side of the U-shaped plate, and the inner wall of the U-shaped plate is slidably connected to a card frame, the arc surface of the long rod is slidably connected to the inner wall of the card frame, one side of the card frame is fixedly connected to a connecting rod, and the lower surface of the connecting rod is fixedly connected to a protective cover, and the protective cover is located on the arc surface of the driving rod.

[0015] The effect achieved by the above components is: achieving the effect of protecting the driving rod, so that the device covers the protruding points of the body during transportation, preventing the driving rod from bumping and reducing its connection stability, thereby increasing the service life of the driving rod.

[0016] Preferably, the arc surface of the long rod is covered with a spring, and the two ends of the spring are fixedly connected to the long rod and the U-shaped plate respectively.

[0017] The effect achieved by the above components is that the movement of the long rod drives the spring to expand and contract, and the spring plays a role in further limiting the long rod.

[0018] Preferably, a fixing ring is fixedly connected to the inner wall of the protective cover, and the inner wall of the fixing ring is slidably connected to the driving rod.

[0019] The effect achieved by the above components is that the protective cover moves so that the fixing ring is sleeved on the arc surface of the driving rod, and the fixing ring achieves the effect of improving the stability between the protective cover and the driving rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The present invention, by providing a waterproof structure, achieves a waterproof effect between the machine body and the drive rod. By cooperating with the conical cover and the soft pad, the sealing strength of the single sealing ring is further improved, preventing dust, moisture and other impurities from entering the interior of the reducer. The invention is more stable and reliable, can adapt to various harsh working environments, and reduces the cost of maintenance and replacement of seals. Secondly, the requirements for installation accuracy are relatively low, which reduces the difficulty of installation. The overall structure is detachable, which greatly facilitates personnel to maintain and replace aging parts. The present invention, by providing a protective structure, achieves the effect of protecting the drive rod, so that the device covers the protruding points of the machine body during transportation, preventing the drive rod from bumping and reducing its connection stability, thereby increasing the service life of the drive rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 Schematic diagram of the local structure;

[0024] Figure 3 For this utility model Figure 2 Schematic diagram of the local structure;

[0025] Figure 4 This is a schematic diagram of the rear partial structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the screw rod of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the soft pad of the utility model;

[0028] Figure 7 This is a structural diagram of the convex plate of the utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the groove of the utility model;

[0030] Figure 9 It is a structural diagram of the fixing ring of the utility model.

[0031] In the figure: 1. Machine body; 2. Driving rod; 3. Input port; 4. Waterproof structure; 401. Circular ring; 402. Threaded ring; 403. Conical cover; 404. Inner groove; 405. Cushion; 406. Protruding plate; 407. Groove; 408. Screw; 409. Screw groove; 410. Arc groove; 5. Protective structure; 51. U-shaped plate; 52. Long rod; 53. Card frame; 54. Connecting rod; 55. Protective cover; 56. Spring; 57. Fixing ring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 4 The utility model provides a technical solution: a highly waterproof reducer, comprising a body 1, the inner wall of the body 1 is rotatably connected to a driving rod 2, an input port 3 is installed on the side of the body 1 away from the driving rod 2, and a waterproof structure 4 is provided on the arc surface of the driving rod 2, which achieves the effect of waterproofing between the body 1 and the driving rod 2, thereby avoiding as much as possible the problem of low firmness of the adhesive sealing ring and the high installation angle that easily affects the overall waterproofness of the device. A protective structure 5 is provided on the upper surface of the body 1, which achieves the effect of protecting the driving rod 2, so that the device covers the protruding points of the body 1 during transportation, preventing the driving rod 2 from bumping and reducing its connection stability, thereby improving the service life of the driving rod 2.

[0034] The following describes in detail the specific configuration and function of the waterproof structure 4 and the protective structure 5.

[0035] like Figure 2-Figure 8As shown, the waterproof structure 4 includes a ring 401, the inner wall of the ring 401 is fixedly connected to the driving rod 2, the arc surface of the ring 401 is threadedly connected to the threaded ring 402, the arc surface of the driving rod 2 is slidably connected to the conical cover 403 relative to the position of the threaded ring 402, the arc surface of the threaded ring 402 is threaded with a screw 408, the arc surface of the driving rod 2 is provided with a screw groove 409, the arc surface of the screw 408 is threadedly connected to the inner wall of the screw groove 409, the arc surface of the conical cover 403 is provided with an inner groove 404, the inner wall of the inner groove 404 is slidably connected to a cushion 405, the arc surface of the cushion 405 is in contact with the inner wall of the body 1, the conical cover 403 drives the cushion 405 to fit the inner wall of the body 1, and the cushion 405 plays a role In order to improve the filling capacity between the conical cover 403 and the body 1, the inner wall of the inner groove 404 is evenly fixedly connected with several convex plates 406, and the inner wall of the soft pad 405 is provided with grooves 407 relative to the positions of the several convex plates 406. The inner wall of the groove 407 is in contact with the convex plate 406. The soft pad 405 moves so that the groove 407 is sleeved on the surface of the convex plate 406. The convex plate 406 achieves the effect of improving the stability of the soft pad 405 itself. The arc surface of the threaded ring 402 is evenly provided with several arc grooves 410, and the several arc grooves 410 are all located on the side away from the conical cover 403. The threaded ring 402 is driven to rotate with the help of the arc grooves 410, and the arc grooves 410 serve to increase the friction resistance of the threaded ring 402.

[0036] like Figure 3 and Figure 9 As shown, the protective structure 5 includes a U-shaped plate 51, the lower surface of the U-shaped plate 51 is fixedly connected to the body 1, and a long rod 52 is slidably passed through one side of the U-shaped plate 51, and a card frame 53 is slidably connected to the inner wall of the U-shaped plate 51. The arc surface of the long rod 52 is slidably connected to the inner wall of the card frame 53, and one side of the card frame 53 is fixedly connected to a connecting rod 54, and a protective cover 55 is fixedly connected to the lower surface of the connecting rod 54. The protective cover 55 is located on the arc surface of the driving rod 2, and the arc surface of the long rod 52 is sleeved with a spring 56. The two ends of the spring 56 are respectively fixedly connected to the long rod 52 and the U-shaped plate 51. The movement of the long rod 52 drives the spring 56 to extend and retract, and the spring 56 plays a role in further limiting the long rod 52. The inner wall of the protective cover 55 is fixedly connected to a fixing ring 57. The inner wall of the fixing ring 57 is slidably connected to the driving rod 2. The protective cover 55 moves so that the fixing ring 57 is sleeved on the arc surface of the driving rod 2. The fixing ring 57 achieves the effect of improving the stability between the protective cover 55 and the driving rod 2.

[0037] Working principle: When it is necessary to seal and waterproof the body 1 and the driving rod 2, first put the soft pad 405 into the inner groove 404 of the arc surface of the cone cover 403. The soft pad 405 improves the filling capacity between the cone cover 403 and the body 1. The groove 407 is because the soft pad 405 is put on the surface of the convex plate 406. The convex plate 406 improves the stability of the soft pad 405 itself. At this time, the soft pad 405 is temporarily limited in the inner groove 404 of the cone cover 403. Then, the threaded ring 402 is rotated with the help of the arc groove 410. The arc groove 410 increases the friction resistance of the threaded ring 402. The threaded ring 402 rotates and moves on the arc surface of the ring 401. The threaded movement between the threaded ring 402 and the circular ring 401 squeezes and drives the conical cover 403 to move until the conical cover 403 is squeezed between the driving rod 2 and the body 1, and the soft pad 405 fits against the inner wall of the body 1. Finally, the screw 408 is rotated to the side close to the driving rod 2 through the threaded ring 402, and the screw 408 is inserted into the arc surface groove 409 of the driving rod 2, so as to limit the threaded ring 402 again. After the installation is completed, the motor output end is connected to the input port 3, and then the driving rod 2 is connected to the driving device. The motor output end rotates in the input port 3 and drives multiple transmission gears inside the body 1, thereby reducing a certain speed and inputting it into the device through the driving rod 2.

[0038] When the machine body 1 needs to be transported, the long rod 52 is first pulled through the U-shaped plate 51. At this time, the spring 56 is in a stretched state through the long rod 52, and then the protective cover 55 is put on the surface of the driving rod 2. The fixing ring 57 is put on the arc surface of the driving rod 2 through the movement of the protective cover 55. The fixing ring 57 achieves the effect of improving the stability between the protective cover 55 and the driving rod 2. The protective cover 55 is continuously moved, and the card frame 53 is driven by the connecting rod 54 to be inserted into the U-shaped plate 51. Then the long rod 52 is released. At this time, the spring 56 is in a contracted state. The spring 56 plays a role in further limiting the long rod 52, driving the long rod 52 to be inserted into the card frame 53 through the U-shaped plate 51, thereby limiting the card frame 53 and indirectly limiting the protective cover 55, so that the driving rod 2 is blocked and effectively prevents the driving rod 2 from being exposed and damaged by collision.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly waterproof reducer, comprising a body (1), characterized in that: The inner wall of the body (1) is rotatably connected to the driving rod (2), and an input port (3) is installed on a side of the body (1) away from the driving rod (2). The arc surface of the driving rod (2) is provided with a waterproof structure (4), and the waterproof structure (4) comprises a ring (401). The inner wall of the ring (401) is fixedly connected to the driving rod (2), and the arc surface of the ring (401) is threadedly connected to a threaded ring (402). The arc surface of the driving rod (2) is slidably connected to a conical cover (403) at a position relative to one side of the threaded ring (402). The arc surface of the threaded ring (402) is threadedly penetrated by a screw (408), and the arc surface of the driving rod (2) is provided with a screw groove (409). The arc surface of the screw (408) is threadedly connected to the inner wall of the screw groove (409).

2. A highly waterproof reducer according to claim 1, characterized in that: The arc surface of the conical cover (403) is provided with an inner groove (404), the inner wall of the inner groove (404) is slidably connected with a soft pad (405), and the arc surface of the soft pad (405) is in contact with the inner wall of the body (1).

3. A highly waterproof reducer according to claim 2, characterized in that: The inner wall of the inner groove (404) is evenly and fixedly connected with a plurality of convex plates (406), and the inner wall of the soft pad (405) is provided with grooves (407) at positions relative to the plurality of convex plates (406), and the inner wall of the groove (407) is in contact with the convex plates (406).

4. The highly waterproof reducer according to claim 1, characterized in that: The arc surface of the threaded ring (402) is evenly provided with a plurality of arc grooves (410), and the plurality of arc grooves (410) are all located on a side away from the conical cover (403).

5. The highly waterproof reducer according to claim 1, characterized in that: The upper surface of the machine body (1) is provided with a protective structure (5), the protective structure (5) comprising a U-shaped plate (51), the lower surface of the U-shaped plate (51) being fixedly connected to the machine body (1), a long rod (52) slidingly passing through one side of the U-shaped plate (51), a clamping frame (53) being slidably connected to the inner wall of the U-shaped plate (51), the arc surface of the long rod (52) being slidably connected to the inner wall of the clamping frame (53), a connecting rod (54) being fixedly connected to one side of the clamping frame (53), a protective cover (55) being fixedly connected to the lower surface of the connecting rod (54), and the protective cover (55) being located on the arc surface of the driving rod (2).

6. The highly waterproof reducer according to claim 5, characterized in that: The arc surface of the long rod (52) is covered with a spring (56), and the two ends of the spring (56) are fixedly connected to the long rod (52) and the U-shaped plate (51) respectively.

7. The highly waterproof reducer according to claim 5, characterized in that: A fixing ring (57) is fixedly connected to the inner wall of the protective cover (55), and the inner wall of the fixing ring (57) is slidably connected to the driving rod (2).

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