Steel ball reel coupling

Abstract

The utility model provides a steel ball reel coupling, which belongs to the field of steel ball reel couplings and comprises a first reel flange and a second reel flange, the inner wall of the first reel flange is rotatably connected with a first outer ring, the inner wall of the second reel flange is rotatably connected with a second outer ring, and the inner wall of the second outer ring is provided with an inner ring. A plurality of sets of second hemispherical grooves are formed in the outer side wall of the inner ring, a plurality of sets of first hemispherical grooves matched with the second hemispherical grooves are formed in the inner side wall of the first outer ring, the first hemispherical grooves and the second hemispherical grooves form spherical cavities, and steel balls are arranged in the spherical cavities. According to the lubricating device, the lubricating mechanism is arranged, the steel balls can be lubricated, the lubricating channel, the oil conveying annular pipe and the oil inlet pipe are matched to replace a traditional oil hole for oil filling, the problem of overflow caused by too much added lubricating oil can be avoided, and the lubricating effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical field, and more particularly, relate to a steel ball reel shaft coupling. BACKGROUND

[0002] The steel ball reel shaft coupling is a kind of mechanical transmission device combining the features of steel ball transmission and reel shaft coupling, adopts steel ball as transmission medium, and realizes power transmission by the contact between steel ball and inner and outer rings.

[0003] The steel ball reel shaft coupling is used for a long time, and the lubrication effect between the steel ball and the inner and outer rings will be poor, so the steel ball in the steel ball reel shaft coupling needs to be lubricated, and at present, oil hole or oil groove is mostly used to inject lubricating oil (such as gear oil) into the coupling, and the oil forms a fluid lubricating film between the steel ball and the inner and outer rings, but when adding lubricating oil, it is difficult to control the oil amount, so that excess lubricating oil will overflow from the oil hole or oil groove, causing waste, and the oil hole or oil groove is mostly only provided with a group, so that multiple groups of steel balls are difficult to be fully lubricated, and the lubrication between the steel ball and the inner and outer rings is uneven, and the lubrication effect is poor, so how to invent a steel ball reel shaft coupling to improve these problems has become a problem to be solved by the technical personnel in the field. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides a steel ball reel shaft coupling, which aims to improve the problem that oil hole or oil groove is mostly used to inject lubricating oil (such as gear oil) into the coupling, and the oil forms a fluid lubricating film between the steel ball and the inner and outer rings, but when adding lubricating oil, it is difficult to control the oil amount, so that excess lubricating oil will overflow from the oil hole or oil groove, causing waste, and the oil hole or oil groove is mostly only provided with a group, so that multiple groups of steel balls are difficult to be fully lubricated.

[0005] The utility model is realized as follows:

[0006] The utility model provides a steel ball reel shaft coupling, which comprises a first reel flange and a second reel flange, the first reel flange and the second reel flange are connected by bolts and nuts, a first outer ring is rotatably connected to the inner wall of the first reel flange, a second outer ring is rotatably connected to the inner wall of the second reel flange, an inner ring is arranged on the inner wall of the second outer ring, a plurality of second hemispherical grooves are formed on the outer side wall of the inner ring, a plurality of first hemispherical grooves matched with the second hemispherical grooves are formed on the inner side wall of the first outer ring, the first hemispherical grooves and the second hemispherical grooves form spherical cavities, and steel balls are arranged in the spherical cavities, and the utility model further comprises a lubricating mechanism arranged on the outer wall of the first reel flange and the first outer ring, which can lubricate the steel balls.

[0007] Preferably, the lubricating mechanism comprises an oil storage box provided on the outer wall of the first drum flange, an oil inlet pipe movably penetrating the bottom of the oil storage box, an oil delivery ring pipe provided on the outer wall of the first outer ring, a plurality of lubricating channels provided on the inner wall of the first outer ring, the lubricating channels being in communication with the first semispherical groove, a communication pipe provided on the outer wall of the oil delivery ring pipe, a threaded joint provided on one end of the communication pipe, and external threads provided on the outer wall of the oil inlet pipe and matched with the threaded joint.

[0008] Preferably, an air inlet pipe is provided in the oil storage box, a sealing air bag is provided on one end of the air inlet pipe, the sealing air bag is arranged inside the oil inlet pipe, a gas filling pipe is provided on the other end of the air inlet pipe, a control valve is provided on the outer wall of the gas filling pipe, and a fixing plate is provided on the outer wall of the air inlet pipe and connected with the inner wall of the oil storage box.

[0009] Preferably, an oil inlet is provided on the outer wall of the oil storage box, external threads are provided on the inner wall of the oil inlet, and a sealing bolt matched with the external threads is arranged in the oil inlet.

[0010] Preferably, the lubricating channels are arranged in a Z shape, and oil holes in communication with the lubricating channels are provided on the outer wall of the oil delivery ring pipe.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The lubricating mechanism can lubricate the steel balls, the lubricating channels, the oil delivery ring pipe and the oil inlet pipe are matched to replace the traditional oil hole for oiling, the problem of overflow caused by excessive lubricating oil can be avoided, and the lubricating effect is improved.

[0013] 2. The plurality of lubricating channels matched with the steel balls can contact with each group of steel balls to fully lubricate and improve the lubricating effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope. Other related drawings can also be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a structural schematic view of the present application;

[0016] Figure 2 is a structural sectional view of the present application;

[0017] Figure 3 is a structural sectional view of the present applicationFigure 2 Structure enlarged view at middle A;

[0018] Figure 4 Is the utility model oil storage box structure schematic diagram.

[0019] In the figure: 1, first drum flange;2, second drum flange;3, first outer ring;4, second outer ring;5, lubricating mechanism;500, oil ring pipe;501, communication pipe;502, lubricating passage;503, sealing air bag;504, fixed plate;505, oil storage box;506, air inlet pipe;507, gas filling pipe;508, oil filling port;509, sealing bolt;510, oil inlet pipe;511, threaded joint;6, inner ring;7, steel ball;8, first half spherical groove;9, second half spherical groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment, refer to Figures 1-4 A steel ball drum coupling, comprising a first drum flange 1 and a second drum flange 2, the drum flange is a flange formed by coiling process, usually used for pipeline connection, equipment interface or support and connection of mechanical structure, the first drum flange 1 and the second drum flange 2 are connected by bolts and nuts, the first drum flange 1 inner wall is rotatably connected with the first outer ring 3, the second drum flange 2 inner wall is rotatably connected with the second outer ring 4, the second outer ring 4 inner wall is provided with the inner ring 6, the outer side wall of the inner ring 6 is provided with a plurality of second half spherical grooves 9, the inner side wall of the first outer ring 3 is provided with a plurality of first half spherical grooves 8 matched with the second half spherical grooves 9, the first half spherical grooves 8 and the second half spherical grooves 9 form a spherical cavity, and the spherical cavity is provided with a steel ball 7, the steel ball is a core transmission element of the coupling, usually high-precision ball, which transmits torque through rolling contact, and the number and arrangement of the steel balls directly affect the carrying capacity and transmission precision of the coupling, further comprising: a lubricating mechanism 5, the lubricating mechanism 5 is arranged on the outer wall of the first drum flange 1 and the first outer ring 3, and the lubricating mechanism 5 can lubricate the steel ball 7.

[0022] The lubricating mechanism 5 comprises an oil storage box 505 provided on the outer wall of the first drum flange 1, an oil inlet pipe 510 movably penetrating the bottom of the oil storage box 505, an oil delivery ring pipe 500 provided on the outer wall of the first outer ring 3, a plurality of lubricating channels 502 provided on the inner wall of the first outer ring 3, the lubricating channels 502 being communicated with the first semispherical groove 8, a communication pipe 501 provided on the outer wall of the oil delivery ring pipe 500, a threaded joint 511 provided on one end of the communication pipe 501, external threads provided on the outer wall of the oil inlet pipe 510 and matched with the threaded joint 511, an oil inlet 508 provided on the outer wall of the oil storage box 505, threads provided on the inner wall of the oil inlet 508, a sealing bolt 509 provided in the oil inlet 508 and matched with the threads, the oil storage box 505 being filled with lubricating oil through the oil inlet 508, and then the oil inlet 508 being sealed by the sealing bolt 509, the lubricating channels 502 being Z-shaped, and oil holes being provided on the outer wall of the oil delivery ring pipe 500 and communicated with the lubricating channels 502, so that the lubricating oil in the oil delivery ring pipe 500 enters the lubricating channels 502 through the oil holes, and then enters the first semispherical groove 8 through the lubricating channels 502 to lubricate the steel ball 7.

[0023] It should be noted that when the oil inlet pipe 510 is opened, the lubricating oil in the oil storage box 505 enters the oil delivery ring pipe 500 through the oil inlet pipe 510 and the communication pipe 501, and then enters the first semispherical groove 8 through the lubricating channels 502 to lubricate the steel ball 7.

[0024] The oil storage box 505 is provided with an air inlet pipe 506, one end of the air inlet pipe 506 is provided with a sealed air bag 503, the sealed air bag 503 is arranged in the oil inlet pipe 510, the other end of the air inlet pipe 506 is provided with an air inlet pipe 507, the outer wall of the air inlet pipe 507 is provided with a control valve, the outer wall of the air inlet pipe 506 is provided with a fixed plate 504, and the side wall of the fixed plate 504 is connected with the inner wall of the oil storage box 505.

[0025] It should be noted that when the steel ball 7 needs to be lubricated, the oil inlet pipe 510 is threadedly connected with the threaded joint 511, then the control valve is controlled to open the air inlet pipe 507, the gas in the sealed air bag 503 will overflow, the sealed air bag 503 will be deflated, and the oil inlet pipe 510 will be opened, after the lubrication is completed, the air inlet pipe 507 is filled with air by an external air pump (which is prior art), so that the sealed air bag 503 is inflated to seal the oil inlet pipe 510.

[0026] The working principle of the steel ball drum coupling is as follows: the outer motor output end is connected with the inner wall of the first outer ring 3, and the outer shaft is connected with the inner wall of the second outer ring 4, so that when the outer motor works, the first outer ring 3 rotates, and under the cooperation of the steel ball 7, the inner ring 6 rotates, the inner ring 6 drives the second outer ring 4 and the outer shaft to rotate, and the coupling function is realized.

[0027] When the steel ball 7 needs to be lubricated, the oil inlet pipe 510 is screwed with the threaded joint 511, then the control valve is controlled to open the gas inlet pipe 507, the gas in the sealed air bag 503 will overflow, the sealed air bag 503 will deflate, then the lubricating oil in the oil storage box 505 will enter into the oil ring pipe 500 through the oil inlet pipe 510 and the communication pipe 501, then enter into the first half spherical groove 8 through the lubricating channel 502 to lubricate the steel ball 7, after the lubrication is completed, the gas inlet pipe 507 is filled with gas by using an external air pump, so that the sealed air bag 503 expands to seal the oil inlet pipe 510, then the oil inlet pipe 510 is separated from the threaded joint 511.

[0028] It should be noted that the specific model and specification need to be selected and determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0029] The preferred embodiments of the present application have been described above, but the present application is not limited to the above embodiments, and various modifications and changes can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A steel ball drum coupling, comprising a first drum flange (1) and a second drum flange (2), the first drum flange (1) and the second drum flange (2) are connected by bolts and nuts, a first outer ring (3) is rotatably connected to the inner wall of the first drum flange (1), a second outer ring (4) is rotatably connected to the inner wall of the second drum flange (2), an inner ring (6) is arranged on the inner wall of the second outer ring (4), a plurality of second half-spherical grooves (9) are arranged on the outer side wall of the inner ring (6), a plurality of first half-spherical grooves (8) matched with the second half-spherical grooves (9) are arranged on the inner side wall of the first outer ring (3), the first half-spherical grooves (8) and the second half-spherical grooves (9) form a spherical cavity, and a steel ball (7) is arranged in the spherical cavity, characterized in that, Also include: Lubricating mechanism (5): the lubricating mechanism (5) is arranged on the first drum flange (1) and the outer wall of the first outer ring (3), the lubricating mechanism (5) can lubricate the steel ball (7).

2. A steel ball-bush coupling according to claim 1, characterised in that The lubricating mechanism (5) includes the oil storage box (505) provided on the outer side wall of the first drum flange (1), the bottom of the oil storage box (505) is movably penetrated by the oil inlet pipe (510), the outer wall of the first outer ring (3) is provided with the oil ring pipe (500) installed in a sleeve, a plurality of lubricating channels (502) are formed in the inner wall of the first outer ring (3), the lubricating channels (502) are communicated with the first hemispherical groove (8), the outer side wall of the oil ring pipe (500) is provided with the communication pipe (501), one end of the communication pipe (501) is provided with the threaded joint (511), and the outer side wall of the oil inlet pipe (510) is provided with the external thread matched with the threaded joint (511).

3. A steel ball-bush coupling as claimed in claim 2, wherein, The oil storage box (505) is provided with an air inlet pipe (506), one end of the air inlet pipe (506) is provided with a sealing air bag (503), the sealing air bag (503) is arranged in the oil inlet pipe (510), the other end of the air inlet pipe (506) is provided with a gas filling pipe (507), the outer side wall of the gas filling pipe (507) is provided with a control valve, the outer wall of the air inlet pipe (506) is provided with a fixed plate (504) installed in a sleeve, and the side wall of the fixed plate (504) is connected with the inner side wall of the oil storage box (505).

4. A steel ball-bush coupling as defined in claim 2, wherein The outer side wall of the oil storage box (505) is provided with an oil inlet (508), the inner side wall of the oil inlet (508) is provided with a thread, and the oil inlet (508) is provided with a sealing bolt (509) matched with the thread.

5. A steel ball-bush coupling as defined in claim 2, wherein, The lubricating channel (502) is arranged in a Z shape, and the outer wall of the oil ring pipe (500) is provided with an oil hole communicated with the lubricating channel (502).

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