Built-in breather valve type speed reducer

Abstract

The utility model relates to a built-in breather valve type speed reducer, it includes the casing (1), the casing (1) includes the race (11) and axle casing (12), be provided with gear (2) in the race (11), be provided with worm (3) in the axle casing (12), gear (2) is matched with worm (3), be provided with left and right two oil seals (4) between gear (2) and race (11), be provided with breather valve (5) on gear (2). The utility model relates to a built-in breather valve type speed reducer, and it can solve the problem that the present technical level cannot realize the breather demand of tracker or cannot effectively realize the breather demand of tracker for a long time.

Description

Technical Field

[0001] This utility model relates to a speed reducer with a built-in vent valve, belonging to the technical field of rotary speed reducers. Background Technology

[0002] There are two types of rotary gear reducers currently used for solar tracking: the first type does not have a vent valve, which is the most common type; the second type has a vent valve, which is mostly installed externally on the outside of the housing. These two types of gear reducers are the most widely used structural types in the field of solar tracking.

[0003] Existing solar tracking reducers cannot meet the airtightness requirements of tracking type. Project sites are increasingly located in high-altitude areas. Reducers without vent valves have large internal and external pressure differences, which can easily cause seals such as oil seals to be blown out, resulting in oil leaks. For reducers with exposed vent valves, the vent valves are easily damaged outdoors, making it impossible to effectively achieve the ventilation function. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a built-in ventilator type reducer that addresses the above-mentioned prior art, which can solve the problem that the prior art cannot meet the ventilation requirements of the tracker or cannot effectively meet the ventilation requirements of the tracker for a long time.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a built-in vent valve type reducer, which includes a housing, the housing including a seat ring and a shaft housing, a gear is provided in the seat ring, a worm is provided in the shaft housing, the gear and the worm cooperate, two oil seals are provided between the gear and the seat ring, and a vent valve is provided on the gear.

[0006] Optionally, the gear includes a gear base, a local area on the outer periphery of the gear base is provided with worm teeth, and an area on the outer periphery of the gear base without worm teeth is recessed inward to form an inner cavity. A vent valve is provided on one side of the inner cavity, and the vent valve is connected to the outside of the gear base.

[0007] Optionally, the vent valve is located at the vent valve port.

[0008] Optionally, the vent valve port is located on the center line of the gear.

[0009] Optionally, a cover plate is provided on one side of the seat ring, and the cover plate is connected to the seat ring by bolts.

[0010] Optionally, a drive motor is provided on one side of the shaft housing, and the output end of the drive motor is connected to the worm gear.

[0011] Optionally, output shafts are connected to the left and right sides of the gear.

[0012] Compared with the prior art, the advantages of this utility model are: 1. The vent valve of this utility model is set on the gear. When the pressure difference between the inside and outside of the device is large, the internal air pressure can be balanced through the vent valve, so that the oil seal and other sealing parts will not be blown out and cause oil leakage of the device. 2. The vent valve of this utility model is completely built into the reducer and is not exposed to harsh environments such as sun and sandstorms, which can effectively extend the life and reliability of the vent valve. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a built-in vent valve type reducer according to the present invention.

[0014] Figure 2 for Figure 1 Side view.

[0015] Figure 3 for Figure 1 A three-dimensional structural diagram of the gear.

[0016] Figure 4 for Figure 1 Longitudinal sectional view of the gear.

[0017] in: Casing 1 Seat ring 11 Shaft housing 12 Gear 2 Gear base 21 Cochlear tooth 22 Inner cavity 23 Vent valve port 24 Worm 3 Oil seal 4 Vent valve 5 Cover plate 6 Drive motor 7 Output shaft 8. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1-4 As shown, a built-in vent valve type reducer in this embodiment includes a housing 1, the housing 1 includes a seat ring 11 and a shaft housing 12, a gear 2 is provided in the seat ring 11, a worm gear 3 is provided in the shaft housing 12, the gear 2 and the worm gear 3 cooperate, two oil seals 4 are provided between the gear 2 and the seat ring 11, and a vent valve 5 is provided on the gear 2; The gear 2 includes a gear base 21. A worm gear 22 is provided in a local area on the outer periphery of the gear base 21. The area on the outer periphery of the gear base 21 without the worm gear 22 is recessed inward to form an inner cavity 23. A vent valve port 24 is provided on one side of the inner cavity 23. The vent valve port 24 is connected to the outside of the gear base 21. The vent valve 5 is located at the vent valve port 24; The vent valve port 24 is located on the center line of gear 2; A cover plate 6 is provided on one side of the seat ring 11, and the cover plate 6 is connected to the seat ring 11 by bolts; A drive motor 7 is provided on one side of the shaft housing 12, and the output end of the drive motor 7 is connected to the worm gear 3; The gear 2 is connected to output shafts 8 on its left and right sides; When the pressure difference between the inside and outside of the device is large, the internal air pressure can be balanced through the vent valve, so that the oil seal and other sealing parts will not be blown out and cause oil leakage.

[0020] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A speed reducer with a built-in vent valve, characterized in that: It includes a housing (1), which includes a seat ring (11) and a shaft housing (12). A gear (2) is provided inside the seat ring (11), and a worm gear (3) is provided inside the shaft housing (12). The gear (2) and the worm gear (3) cooperate with each other. Two oil seals (4) are provided between the gear (2) and the seat ring (11). A breather valve (5) is provided on the gear (2).

2. The reducer with a built-in vent valve according to claim 1, characterized in that: The gear (2) includes a gear base (21), a worm gear (22) is provided in a local area on the outer periphery of the gear base (21), and an inner cavity (23) is formed by the area on the outer periphery of the gear base (21) without the worm gear (22). A vent valve (24) is provided on one side of the inner cavity (23), and the vent valve (24) is connected to the outside of the gear base (21).

3. A built-in vent valve type reducer according to claim 2, characterized in that: The vent valve (5) is located at the vent valve port (24).

4. A built-in vent valve type reducer according to claim 2, characterized in that: The vent valve (24) is located on the center line of the gear (2).

5. A built-in vent valve type reducer according to claim 1, characterized in that: A cover plate (6) is provided on one side of the seat ring (11), and the cover plate (6) is connected to the seat ring (11) by bolts.

6. A built-in vent valve type reducer according to claim 1, characterized in that: A drive motor (7) is provided on one side of the shaft housing (12), and the output end of the drive motor (7) is connected to the worm gear (3).

7. A built-in vent valve type reducer according to claim 1, characterized in that: The gear (2) is connected to output shafts (8) on both the left and right sides.

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