Oil leakage prevention rotary speed reducer

Abstract

The utility model relates to an oil leakage prevention rotary speed reducer which comprises a base, the base comprises a shaft shell and a seat ring, a worm is arranged in the shaft shell, a worm gear is arranged in the seat ring, the worm is matched with the worm gear, a worm gear bearing and a steel wire raceway bearing are arranged between the worm gear and the seat ring, and the steel wire raceway bearing is matched with the worm gear. The worm wheel bearing and the steel wire raceway bearing are respectively positioned on the upper and lower sides of the worm wheel; and an oil baffle plate is arranged on the lower end surface of the worm wheel. According to the oil leakage prevention rotary speed reducer, the oil baffle plate is arranged below the steel wire raceway bearing, and the oil seal lip is not in contact with grease through guiding and oil blocking of the oil baffle plate, so that the oil leakage prevention function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a leakproof oil rotary speed reducer, which is mainly used for rotary application of light and heat solar energy and belongs to the technical field of rotary speed reducers. BACKGROUND

[0002] At present, most light and heat solar energy rotary speed reducers are precision rotary speed reducers. In order to facilitate the adjustment of the gap and the structural rigidity, the worm wheel main supporting bearing is usually a steel wire raceway bearing (composed of an outer ring raceway (two inner raceway steel wires), an inner ring raceway (two outer raceway steel wires), an open retainer, and multiple steel balls). Such an assembled bearing cannot be designed with an integrated oil-proof sealing ring. The oil on the upper side of the steel wire raceway bearing can enter the lower side of the steel wire raceway bearing through the gap between the steel balls of the bearing, thereby entering the oil seal lip on the lower side. When the oil seal rotates, the oil on the upper side is easily taken out or seeped out of the rotating lip, causing oil leakage. SUMMARY

[0003] The utility model solves the technical problem of the prior art, and provides a leakproof oil rotary speed reducer. An oil baffle is arranged below the steel wire raceway bearing. The oil baffle guides and blocks the oil, so that the oil seal lip does not contact the oil, thereby achieving the function of preventing oil leakage.

[0004] The utility model adopts the technical scheme that a leakproof oil rotary speed reducer comprises a base, the base comprises a shaft housing and a seat ring, a worm is arranged in the shaft housing, a worm wheel is arranged in the seat ring, the worm cooperates with the worm wheel, a worm wheel bearing and a steel wire raceway bearing are arranged between the worm wheel and the seat ring, the worm wheel bearing and the steel wire raceway bearing are respectively arranged on the upper and lower sides of the worm wheel, and an oil baffle is arranged on the lower end surface of the worm wheel.

[0005] Optionally, an installation seat is arranged below the oil baffle, and the installation seat is connected with the worm wheel through bolts.

[0006] Optionally, an oil seal is arranged between the installation seat and the seat ring, and the oil seal is arranged below the oil baffle.

[0007] Optionally, a worm bearing is arranged between the worm and the shaft housing.

[0008] Optionally, the installation seat is fixedly installed with a stand column of a tracking system, the worm wheel is fixed, and the base rotates to output.

[0009] Optionally, the base is fixedly installed with a stand column of a tracking system, the base is fixed, and the installation seat rotates to output.

[0010] Optionally, an outer ring of the oil seal is installed on the seat ring, and an oil seal lip is sealed with the installation seat.

[0011] Optionally, the oil baffle comprises an oil baffle mounting surface, an oil baffle guide fence is arranged outside the oil baffle mounting surface, and an oil baffle oil receiving plate is arranged outside the oil baffle guide fence.

[0012] Optionally, the oil baffle oil receiving plate is straight or bent.

[0013] Optionally, the lower end surface of the worm gear is provided with an annular groove, and the top surface of the oil baffle mounting surface is provided with an annular protrusion, and the annular protrusion is mounted in the annular groove.

[0014] Compared with the prior art, the oil baffle of the utility model has the advantages that:

[0015] The utility model discloses a rotary speed reducer of anti -leakage oil, its steel wire raceway bearing below is provided with the oil baffle, through the guidance and the blocking of the oil baffle, makes the oil seal lip not contact grease, thereby realizes the anti -leakage oil function. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of a kind of anti -leakage oil rotary speed reducer of the utility model.

[0017] Figure 2 It is Figure 1 Partial enlarged view.

[0018] Figure 3 It is Figure 1 Structure schematic diagram of the oil baffle in it.

[0019] Figure 4 It is Figure 1 Structure schematic diagram of another embodiment of the oil baffle in it.

[0020] Wherein:

[0021] Base 1

[0022] Shaft shell 1.1

[0023] Seat ring 1.2

[0024] Worm 2

[0025] Worm gear 3

[0026] Worm gear bearing 4

[0027] Steel wire raceway bearing 5

[0028] Oil baffle 6

[0029] Oil baffle mounting surface 6.1

[0030] Oil baffle guide fence 6.2

[0031] Oil baffle oil receiving plate 6.3

[0032] 6.4 ring-shaped protrusions

[0033] Mounting bracket 7

[0034] Oil seal 8

[0035] worm bearing 9

[0036] Annular groove 10. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] like Figures 1-4 As shown in this embodiment, an oil-leakage-proof rotary reducer includes a base 1, which includes a shaft housing 1.1 and a seat ring 1.2. A worm gear 2 is disposed inside the shaft housing 1.1, and a worm wheel 3 is disposed inside the seat ring 1.2. The worm gear 2 and the worm wheel 3 cooperate with each other. A worm wheel bearing 4 and a wire raceway bearing 5 are disposed between the worm wheel 3 and the seat ring 1.2. The worm wheel bearing 4 and the wire raceway bearing 5 are respectively located on the upper and lower sides of the worm wheel 3. An oil baffle 6 is disposed on the lower end face of the worm wheel 3.

[0039] A mounting base 7 is provided below the oil baffle 6, and the mounting base 7 is connected to the worm gear by bolts;

[0040] The oil baffle 6 is fixedly disposed between the worm gear 3 and the mounting base 7;

[0041] An oil seal 8 is provided between the mounting base 7 and the seat ring 1.2, and the oil seal 8 is located below the oil baffle plate 6;

[0042] A worm bearing 9 is provided between the worm 2 and the shaft housing 1.1;

[0043] The mounting base 7 is fixedly installed on the column of the tracking system. The output is achieved by the relative movement of the worm gear and worm, with the worm gear fixed and the base (worm) rotating.

[0044] The outer ring of the oil seal 8 is mounted on the seat ring 1.2, and the lip of the oil seal 8 is sealed with the mounting base 7;

[0045] The oil baffle 6 includes an oil baffle mounting surface 6.1, an oil baffle guide plate 6.2 is provided on the outside of the oil baffle mounting surface 6.1, and an oil baffle bearing plate 6.3 is provided on the outside of the oil baffle guide plate 6.2.

[0046] The oil baffle plate 6.3 can be straight or bent;

[0047] The oil baffle mounting surface 6.1 mates with the inner ring end face of the wire raceway bearing 5 and the mounting seat 7, respectively.

[0048] The oil baffle guide plate 6.2 is located below the steel wire raceway bearing 5;

[0049] The lower end face of the worm gear 3 is provided with an annular groove 10, and the top surface of the oil baffle mounting surface 6.1 is provided with an annular protrusion 6.4, which is installed in the annular groove 10.

[0050] There is a small gap between the outer ring of the oil baffle 6 and the inner diameter of the seat ring 1.2 to ensure that there is no friction between the base and the oil baffle when the base rotates; at the same time, the small gap between the oil baffle and the seat ring 1.2 achieves mechanical sealing; the worm gear, mounting base, base, oil baffle, and oil seal form a sealed cavity to achieve grease sealing.

[0051] Working principle:

[0052] The wire raceway bearing is located between the worm gear and the base. Grease fills the area above the bearing, and an oil baffle is positioned below it. Grease from above the bearing enters through the gaps between the bearing balls, passes through a guide plate, and mainly accumulates above the oil baffle. A very small amount of grease falls into the oil seal cavity through the gap between the oil baffle and the base. Due to the guiding and blocking effect of the oil baffle, the oil seal lip does not come into contact with the grease, thus preventing oil leakage.

[0053] 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 leak-proof rotary reducer, characterized in that: It includes a base (1), which includes a housing (1.1) and a seat ring (1.2). A worm (2) is provided inside the housing (1.1), and a worm wheel (3) is provided inside the seat ring (1.2). The worm (2) and the worm wheel (3) cooperate with each other. A worm wheel bearing (4) and a wire race bearing (5) are provided between the worm wheel (3) and the seat ring (1.2). The worm wheel bearing (4) and the wire race bearing (5) are located on the upper and lower sides of the worm wheel (3) respectively. An oil baffle (6) is provided on the lower end face of the worm wheel (3).

2. The oil-leakage-proof rotary reducer according to claim 1, characterized in that: A mounting base (7) is provided below the oil baffle (6), and the mounting base (7) is connected to the worm gear by bolts.

3. The oil-leakage-proof rotary reducer according to claim 2, characterized in that: An oil seal (8) is provided between the mounting base (7) and the seat ring (1.2), and the oil seal (8) is located below the oil baffle (6).

4. The oil-leakage-proof rotary reducer according to claim 1, characterized in that: A worm bearing (9) is provided between the worm (2) and the shaft housing (1.1).

5. The oil-leakage-proof rotary reducer according to claim 2, characterized in that: The mounting base is fixedly installed on the column of the tracking system, the worm gear is fixed, and the base rotates to output.

6. The oil-leakage-proof rotary reducer according to claim 2, characterized in that: The base is fixedly installed on the column of the tracking system. The base is fixed, and the mounting seat rotates outward.

7. The oil-leakage-proof rotary reducer according to claim 3, characterized in that: The outer ring of the oil seal (8) is installed on the seat ring (1.2), and the lip of the oil seal (8) is sealed with the mounting seat (7).

8. The oil-leakage-proof rotary reducer according to claim 1, characterized in that: The oil baffle (6) includes an oil baffle mounting surface (6.1), an oil baffle guide plate (6.2) is provided on the outside of the oil baffle mounting surface (6.1), and an oil baffle bearing plate (6.3) is provided on the outside of the oil baffle guide plate (6.2).

9. The oil-leakage-proof rotary reducer according to claim 8, characterized in that: The oil baffle plate (6.3) is straight or bent.

10. The oil-leakage-proof rotary reducer according to claim 8, characterized in that: The lower end face of the worm gear (3) is provided with an annular groove (10), and the top surface of the oil baffle mounting surface (6.1) is provided with an annular protrusion (6.4), which is installed in the annular groove (10).

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