Bearing type planetary gear

Abstract

The utility model discloses a bearing type planetary gear which comprises a bearing inner ring and two semi-protective shells, a bearing outer ring is arranged on the bearing inner ring, a plurality of rollers are arranged on the bearing outer ring, gears are arranged on the rollers, two butt joint blocks are fixedly connected to the inner surface of the bearing inner ring, and the two butt joint blocks are fixedly connected to the outer surface of the bearing inner ring. And the two butt joint blocks are movably connected with the same connecting cylinder, the rear surface of the connecting cylinder is fixedly connected with a whole protection shell, the rear surface of the gear is fixedly connected with a first protection ring, and the front surface of the gear is fixedly connected with a second protection ring. Through the arrangement of the semi-protective shell, the connecting cylinder, the whole protective shell, the first protective ring, the second protective ring and other structures, the roller can be protected, so that the situation that the roller is abraded due to attachment of dust and other impurities can be avoided, the normal service life of the roller is prolonged, and the service life of the roller is prolonged. And the performance stability of the whole planetary gear system can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of planetary gear, especially a bearing type planetary gear. BACKGROUND

[0002] The bearing type planetary gear is a kind of structural form that bearing is used to support gear in planetary gear transmission system, wherein planetary gear is a wheel-like part with tooth shape, which is installed together with bearing in the whole system for matching use.

[0003] In prior art, when planetary gear and bearing are connected together in the whole planetary gear system, there is usually a certain size opening between planetary gear and bearing ring, which can cause dust and other impurities in external environment to enter internal space through opening and adhere to roller of bearing, and dust and other impurities adhered to roller can damage original smooth surface of roller, aggravate friction between roller and raceway, and further cause wear of roller surface, which not only affects normal service life of roller, but also affects performance stability of the whole planetary gear system, thus a bearing type planetary gear is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a bearing type planetary gear, realizes protection to roller, thereby can avoid wear of roller due to adhesion of dust and other impurities, improves normal service life of roller, and guarantees performance stability of the whole planetary gear system.

[0005] To achieve the above-mentioned purpose, a bearing type planetary gear is provided, which comprises bearing inner ring and two half protective shells, bearing outer ring is arranged on the bearing inner ring, a plurality of rollers are arranged on the bearing outer ring, gear is arranged on the roller, two butt blocks are fixedly connected to the inner surface of the bearing inner ring, the same connecting barrel is movably connected to the two butt blocks, the rear surface of the connecting barrel is fixedly connected with the whole protective shell, the rear surface of the gear is fixedly connected with the first protective ring, the front surface of the gear is fixedly connected with the second protective ring, the rear surface of the two half protective shells is fixedly connected with the connecting block, the side surface of the two connecting blocks is fixedly connected with the plug, the outer surface of the two plugs is movably connected with the connecting barrel, the inner surface of the two half protective shells is screw-connected with two screws, the outer surface of the four screws is screw-connected with the connecting barrel, four positioning grooves are arranged on the connecting barrel, and two connecting holes are arranged on the two half protective shells.

[0006] According to the bearing type planetary gear, the outer surface of the first protective ring is in contact with the whole protective shell, and the rear surface of the gear is in contact with the whole protective shell.

[0007] According to the bearing type planetary gear, the outer surface of the second protective ring is in contact with the half protective shell, and the front surface of the gear is in contact with the half protective shell.

[0008] According to the bearing type planetary gear, the connecting barrel is provided with an insertion slot, and the outer surface of the insertion block is movably connected with the insertion slot.

[0009] According to the bearing type planetary gear, the connecting barrel is provided with a butt joint slot, and the outer surface of the butt joint block is movably connected with the butt joint slot.

[0010] According to the bearing type planetary gear, the outer surface of the screw is screw-connected with the positioning slot.

[0011] According to the bearing type planetary gear, the outer surface of the screw is screw-connected with the connecting hole.

[0012] According to the bearing type planetary gear, the outer surface of the connecting barrel is in contact with the inner ring of the bearing and the connecting block respectively.

[0013] The above-mentioned scheme has the beneficial effects that:

[0014] Through the arrangement of the half protective shell, the connecting barrel, the whole protective shell, the first protective ring and the second protective ring, the roller can be protected, so that the wear of the roller due to the attachment of dust and other impurities can be avoided, the normal service life of the roller is improved, and the performance stability of the whole planetary gear system can be ensured.

[0015] Through the arrangement of the screw, the positioning slot and the connecting hole, the half protective shell and the connecting barrel can be removed by unscrewing the screw from the positioning slot and the connecting hole, so that the bearing inner ring, the bearing outer ring, the roller and the gear can be maintained.

[0016] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in combination with the drawings and embodiments.

[0018] Figure 1 It is a whole structure schematic view of the bearing type planetary gear of the present application.

[0019] Figure 2 It is a structure schematic view of the gear part of the bearing type planetary gear of the present application.

[0020] Figure 3The utility model relates to a bearing type planetary gear's whole protective shell part's structure schematic diagram.

[0021] Figure 4 The utility model relates to a bearing type planetary gear's connecting cylinder part's structure schematic diagram.

[0022] Figure 5 The utility model relates to a bearing type planetary gear's whole protective shell part's structure schematic diagram.

[0023] Figure 6 The utility model relates to a bearing type planetary gear's connecting cylinder part's structure schematic diagram.

[0024] Figure 7 The utility model relates to a bearing type planetary gear's half protective shell part's structure schematic diagram.

[0025] Figure 8 The utility model relates to a bearing type planetary gear's half protective shell part's structure schematic diagram.

[0026] Legend:

[0027] 1, bearing inner ring;2, bearing outer ring;3, roller;4, gear;5, half protective shell;6, butt joint block;7, connecting cylinder;8, whole protective shell;9, first protective ring;10, second protective ring;11, connecting block;12, plug-in block;13, plug-in slot;14, screw;15, butt joint slot;16, positioning slot;17, connecting hole. Specific implementation

[0028] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawings, and the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0029] Reference Figures 1-8The utility model discloses a bearing type planetary gear, it includes bearing inner race 1 and two half protective shell 5, is provided with bearing outer ring 2 on bearing inner race 1, is provided with a plurality of rollers 3 on bearing outer ring 2, is provided with gear 4 on roller 3, the inner surface fixed connection of bearing inner race 1 has two butt -joint blocks 6, the same connecting cylinder 7 is movably connected on two butt -joint blocks 6, the rear surface fixed connection of connecting cylinder 7 has whole protective shell 8, the rear surface fixed connection of gear 4 has first protective ring 9, the outer surface of first protective ring 9 and whole protective shell 8 contact, the rear surface of gear 4 and whole protective shell 8 contact, the front surface fixed connection of gear 4 has second protective ring 10, the outer surface of second protective ring 10 and half protective shell 5 contact, the front surface of gear 4 and half protective shell 5 contact, the rear surface fixed connection of two half protective shell 5 has connecting block 11, the side surface fixed connection of two connecting block 11 has plug block 12, the outer surface of two plug block 12 is movably connected with connecting cylinder 7, the inner surface screw connection of two half protective shell 5 has two screws 14, the outer surface of four screws 14 is movably connected with connecting cylinder 7, is set up four positioning slots 16 on connecting cylinder 7, two connecting holes 17 are set up on two half protective shell 5, is set up the slot 13 on connecting cylinder 7, the outer surface of plug block 12 is movably connected with slot 13, is set up butt -joint groove 15 on connecting cylinder 7, the outer surface of butt -joint block 6 is movably connected with butt -joint groove 15, the outer surface of screw 14 is screw -connected with positioning slot 16, the outer surface of screw 14 is screw -connected with connecting hole 17, the outer surface of connecting cylinder 7 is respectively with bearing inner race 1, connecting block 11 contact, when plug block 12 is inserted into slot 13, can make positioning slot 16, connecting hole 17 between corresponding, thereby need not operator to carry out the alignment work of positioning slot 16, connecting hole 17 repeatedly again, the convenience of installation is promoted.

[0030] Working principle: by using screwdriver respectively four screws 14 from the positioning slot 16, connecting hole 17 after unscrewing, can remove the two half protective shell 5 and connecting cylinder 7 between the fixed, then pull two half protective shell 5, so that the half protective shell 5 from the connecting cylinder 7 on the take down, when the half protective shell 5 from the connecting cylinder 7 on the take down, also removed the connecting cylinder 7 and the connecting cylinder 7 on the structure of the fixed, at this time pull the whole protective shell 8, can connecting cylinder 7, the whole protective shell 8 and the connecting cylinder 7 on the other structure from the device on the take down, at this time can bearing inner ring 1, bearing outer ring 2, roller 3 and gear 4 and other structure maintenance work, when the maintenance work is finished, the connecting cylinder 7 on the butt joint groove 15 inserted in the butt block 6, not only can the inner surface of the whole protective shell 8 and the first protective ring 9 contact, also can the whole protective shell 8 and gear 4 contact, at this time again respectively two half protective shell 5 on the plug block 12 inserted into the plug slot 13, at this time not only can the half protective shell 5 on the connecting hole 17 and the connecting cylinder 7 on the positioning slot 16 corresponding, also can the inner surface of the half protective shell 5 and the second protective ring 10 contact, and also can the half protective shell 5 and gear 4 contact, then again screw 14 into the positioning slot 16, connecting hole 17, can realize the connecting cylinder 7 and two half protective shell 5 between the fixed, at this time because the whole protective shell 8 and two half protective shell 5 are in contact with the gear 4, so the half protective shell 5 and connecting cylinder 7, the whole protective shell 8 structure after connecting will not from the device as a whole on the take down, so as to two half protective shell 5, connecting cylinder 7, the whole protective shell 8, the first protective ring 9 and the second protective ring 10 under the action of, can prevent the dust and other impurities from the outside adhere to the roller 3, realize the protection of the roller 3.

[0031] The above embodiment of the present application is described in detail in combination with the drawings, but the present application is not limited to the above embodiment, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A bearing type planetary gear comprising: The bearing inner ring (1) is provided with a bearing outer ring (2), the bearing outer ring (2) is provided with a plurality of rollers (3), the roller (3) is provided with a gear (4), characterized in that the inner surface of the bearing inner ring (1) is fixedly connected with two butt blocks (6), the same connecting barrel (7) is movably connected with the two butt blocks (6), the rear surface of the connecting barrel (7) is fixedly connected with the whole protective shell (8), the rear surface of the gear (4) is fixedly connected with the first protective ring (9), the front surface of the gear (4) is fixedly connected with the second protective ring (10), the rear surface of the two half protective shells (5) is fixedly connected with the connecting block (11), the side surface of the two connecting blocks (11) is fixedly connected with the plug block (12), the outer surface of the two plug blocks (12) is movably connected with the connecting barrel (7), the inner surface of the two half protective shells (5) is screw connected with two screws (14), the outer surface of the four screws (14) is screw connected with the connecting barrel (7), the connecting barrel (7) is provided with four positioning grooves (16), and the two half protective shells (5) are provided with two connecting holes (17).

2. A bearing type planetary gear according to claim 1, wherein The outer surface of the first protective ring (9) is in contact with the whole protective shell (8), and the rear surface of the gear (4) is in contact with the whole protective shell (8).

3. A bearing type planetary gear according to claim 1, wherein The outer surface of the second protective ring (10) is in contact with the half protective shell (5), and the front surface of the gear (4) is in contact with the half protective shell (5).

4. A bearing type planetary gear according to claim 1, wherein The connecting barrel (7) is provided with a plug groove (13), and the outer surface of the plug block (12) is movably connected with the plug groove (13).

5. A bearing type planetary gear according to claim 1, wherein The connecting barrel (7) is provided with a butt groove (15), and the outer surface of the butt block (6) is movably connected with the butt groove (15).

6. A bearing type planetary gear according to claim 1, wherein The outer surface of the screw (14) is screw connected with the positioning groove (16).

7. A bearing type planetary gear according to claim 1, wherein The outer surface of the screw (14) is screw connected with the connecting hole (17).

8. A bearing type planetary gear according to claim 1, wherein The outer surface of the connecting barrel (7) is respectively in contact with the bearing inner ring (1) and the connecting block (11).

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