Worm oil guide device

Abstract

The utility model discloses a worm oil guide device which comprises a worm and two bearings arranged at the two ends of the worm, a spiral tooth part is arranged in the middle of the worm, and two oil guide rings located at the two ends of the spiral tooth part and between the two bearings respectively are arranged on the worm. A plurality of oil guide grooves which penetrate through the two end faces of the oil guide ring and transmit lubricating grease at the transmission part to the bearing are formed in the inner circle of the oil guide ring. The worm gear and worm transmission mechanism has the advantages that in the operation process of the worm gear and worm transmission mechanism, lubricating grease on the spiral tooth portion of the worm is transmitted to a bearing along the oil guide grooves of the oil guide ring, and the oil guide grooves are formed in the inner circle of the oil guide ring and penetrate through the two end faces of the oil guide ring; lubricating grease is efficiently transmitted to the two bearings for automatic lubrication, friction and abrasion of the bearings are reduced, and the situations that the bearings are rusted and stuck and the like are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a worm oil guide device. Background Art

[0002] The worm gear mechanism is a mechanical transmission device evolved from the staggered axis helical gear mechanism. It is used to transmit motion and power between two staggered axes and is widely used in various industrial fields. During the operation of the worm gear mechanism, the meshing point of the worm gear and the two bearings at both ends of the worm gear need to be lubricated to ensure its normal operation and improve transmission efficiency.

[0003] When lubricating the bearings, it is usually done by directly adding grease to the bearings, but this is inconvenient to operate. Although the Chinese patent with the authorization announcement number CN213808780U and the authorization announcement date of July 27, 2021 discloses "Worm gear with lubricating oil guide structure", the oil guide structure is set to transfer the grease of the transmission part (transmission part) of the worm along the length direction of the worm to the adjacent parts (such as bearings) for automatic lubrication, but the grease is easy to splash when moving along the oil guide structure (spiral groove), resulting in unsatisfactory effect of automatic lubrication of adjacent parts. Utility Model Content

[0004] The utility model aims to provide a worm oil guide device, by arranging an oil guide ring between the two ends of the spiral tooth portion of the worm and the two bearings, and arranging a plurality of oil guide grooves penetrating the two end surfaces at the inner circle of the oil guide, so that the grease on the spiral tooth portion of the worm can realize efficient automatic lubrication of the bearings through the oil guide ring.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: a worm oil guide device, including a worm and two bearings arranged at both ends of the worm, the middle part of the worm has a spiral tooth portion, and the worm is provided with two oil guide rings respectively located between the two ends of the spiral tooth portion and the two bearings, and the inner circle of the oil guide ring is provided with a plurality of oil guide grooves that penetrate the two end surfaces of the oil guide ring and realize the transfer of grease at the transmission part to the bearing.

[0006] By adopting the above technical solution, during the operation of the worm gear transmission mechanism, the grease on the spiral tooth portion of the worm is transferred to the bearing along the oil guide groove of the oil guide ring. Since the oil guide groove is arranged on the inner circle of the oil guide ring and passes through the two end surfaces of the oil guide ring, the grease can be efficiently transferred to the two bearings for automatic lubrication, thereby reducing friction and wear at the bearings and preventing the bearings from rusting and getting stuck.

[0007] The utility model is further configured as follows: the oil guide ring is interference-fitted on the worm, and a plurality of the oil guide grooves are distributed in a circumferential array.

[0008] By adopting the above technical solution, the oil guide ring is interference fit on the worm to ensure the stability of the oil guide ring after installation and reduce shaking; at the same time, because the spiral teeth on the worm will form a spiral channel, multiple oil guide grooves are distributed in a circular array, so that the number of oil guide rings connected to the spiral channels after installation is relatively uniform, so as to achieve the purpose of efficient oil guidance.

[0009] The utility model is further configured as follows: the groove surface of the oil guide groove is configured as an arc surface.

[0010] By adopting the above solution, the groove surface of the oil guide groove is arranged in an arc surface, which can reduce the resistance of the grease when passing through the oil guide groove.

[0011] The utility model is further configured as follows: the end faces of both ends of the spiral tooth portion are arranged in planes, the oil guide ring abuts against the end faces of the spiral tooth portion, and the grease enters the oil guide groove of the oil guide ring along the spiral channel in the spiral tooth portion.

[0012] By adopting the above scheme, the end faces of the two ends of the spiral tooth portion are arranged in a plane, and the oil guide ring is in contact with the end face of the spiral tooth portion. On the one hand, the installation stability of the oil guide ring can be improved, and on the other hand, the spiral channel in the spiral tooth portion is directly connected to the oil guide groove of the oil guide ring, which facilitates the grease to enter the oil guide groove of the oil guide ring.

[0013] The utility model is further configured as follows: along the extension direction of the worm, the orthographic projection of the inner ring of any one of the bearings does not overlap with the oil guide groove or does not completely cover the oil guide groove.

[0014] By adopting the above solution, the orthographic projection of the inner ring of any bearing does not overlap with the oil guide groove or does not completely cover the oil guide groove. At this time, the grease can pass through the oil guide groove, thereby achieving lubrication of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model (combined with a worm gear);

[0016] Figure 2 It is a structural explosion diagram of the utility model;

[0017] Figure 3 It is a front view of one of the oil guide rings of the utility model.

[0018] Reference numerals: 1, worm; 11, spiral tooth portion; 2, bearing; 3, oil guide ring; 31, oil guide groove. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Embodiment: A worm oil guide device, such as Figure 1 The figure includes a worm 1, two bearings 2 arranged at both ends of the worm 1, a spiral tooth portion 11 in the middle of the worm 1, and two oil guide rings 3 respectively located between the two ends of the spiral tooth portion 11 and the two bearings 2. The inner circle of the oil guide ring 3 is provided with a plurality of oil guide grooves 31 that penetrate the two end surfaces of the oil guide ring 3 and realize the transfer of grease at the transmission part to the bearing 2.

[0021] like Figure 2 and Figure 3 As shown, the end faces of both ends of the spiral tooth portion 11 are arranged in a plane, the oil guide ring 3 is interference-fitted on the worm 1 and abuts against the end face of the spiral tooth portion 11, and a plurality of oil guide grooves 31 are distributed in a circumferential array, and the groove surface of the oil guide groove 31 is arranged in an arc surface. The grease enters the oil guide groove 31 of the oil guide ring 3 along the spiral channel in the spiral tooth portion 11.

[0022] like Figure 2 and Figure 3 As shown, along the extension direction of the worm 1, the orthographic projection of the inner ring of any bearing 2 does not overlap with the oil guide groove 31 or does not completely cover the oil guide groove 31. At the same time, the two bearings 2 can be of different types, and the lengths of the two oil guide rings 3 are adjusted according to the length of the installation location.

[0023] Implementation effect: During the operation of the worm gear 1 transmission mechanism, the grease on the spiral tooth portion 11 of the worm 1 is transferred to the bearing 2 along the oil guide groove 31 of the oil guide ring 3. Since the oil guide groove 31 is arranged on the inner circle of the oil guide ring 3 and passes through the two end surfaces of the oil guide ring 3, the grease can be efficiently transferred to the two bearings 2 for automatic lubrication, thereby reducing the friction and wear at the bearings 2 and preventing the bearings 2 from rusting and getting stuck.

[0024] The end faces of both ends of the spiral tooth portion 11 are arranged in a plane, and the oil guide ring 3 abuts against the end faces of the spiral tooth portion 11, which can improve the installation stability of the oil guide ring 3 on the one hand, and on the other hand, the spiral channel in the spiral tooth portion 11 is directly connected to the oil guide groove 31 of the oil guide ring 3, so that the grease can enter the oil guide groove 31 of the oil guide ring 3. The orthographic projection of the inner ring of any bearing 2 does not overlap with the oil guide groove 31 or does not completely cover the oil guide groove 31. At this time, the grease can pass through the oil guide groove 31, thereby achieving lubrication of the bearing 2.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A worm oil guide device, comprising a worm (1), two bearings (2) arranged at both ends of the worm (1), wherein the middle portion of the worm (1) has a spiral tooth portion (11), and is characterized in that: The worm (1) is provided with two oil guide rings (3) respectively located at the two ends of the spiral tooth portion (11) and between the two bearings (2); the inner circle of the oil guide ring (3) is provided with a plurality of oil guide grooves (31) penetrating the two end surfaces of the oil guide ring (3) and realizing the transfer of grease at the transmission part to the bearing (2).

2. A worm oil guide device according to claim 1, characterized in that: The oil guide ring (3) is interference fit on the worm (1), and a plurality of the oil guide grooves (31) are distributed in a circumferential array.

3. A worm oil guide device according to claim 1, characterized in that: The groove surface of the oil guide groove (31) is arranged in the form of an arc surface.

4. A worm oil guide device according to claim 1, characterized in that: The end faces of both ends of the spiral tooth portion (11) are arranged in a plane, the oil guide ring (3) abuts against the end faces of the spiral tooth portion (11), and the lubricating grease enters the oil guide groove (31) of the oil guide ring (3) along the spiral channel in the spiral tooth portion (11).

5. A worm oil guide device according to claim 1, characterized in that: Along the extension direction of the worm (1), the orthographic projection of the inner ring of any one of the bearings (2) does not overlap with the oil guide groove (31) or does not completely cover the oil guide groove (31).

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