Shaft body with automatic lubricating function

Abstract

The invention relates to the technical field of lubricating devices, in particular to a shaft body with an automatic lubricating function, which comprises a shaft body, a main oil cavity is formed in the center of one end of the shaft body, an oil injection nozzle is fixedly arranged at the front end of the main oil cavity, and a lubricating cavity is formed in the shaft body. The front portion of the lubricating cavity is communicated with the front portion of the main oil cavity through an oil inlet hole, a plurality of lubricating holes communicated with the lubricating cavity are formed in the side wall of the shaft body, and an automatic lubricating device is arranged on the rear portion of the main oil cavity. The shaft body can be automatically lubricated, lubricating grease is not wasted, lubrication is uniform, abrasion of the shaft body is reduced, and the service life of the shaft body is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of lubrication devices, in particular to a shaft body with automatic lubrication function. Background Art

[0002] A shaft is a cylindrical object that runs through the middle of a bearing, wheel, or gear, but a few are square. A shaft is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. Common shafts can be divided into crankshafts, straight shafts, solid shafts, hollow shafts, rigid shafts, etc. according to their structural shapes.

[0003] Shaft wear is the most common equipment problem during the use of shafts. There are many reasons for shaft wear, but the main reason is determined by the characteristics of the metal used to make the shaft. Although the metal has high hardness, it has poor yield (cannot recover after deformation), poor impact resistance, and poor fatigue resistance, so it is easy to cause fatigue wear, micro-motion wear, etc. Most shaft wear is not easy to detect. Only when the machine is hot, the amplitude of the beating is large, and there is an abnormal sound, will it cause people to notice it. However, by the time people find out, most shafts have been worn, causing the machine to stop.

[0004] Therefore, it is necessary to lubricate and maintain the shaft in time to reduce wear and extend its service life. The prior art usually uses a grease gun or other tools to apply high-temperature grease or other lubricating grease on the surface of the shaft for lubrication and maintenance. However, applying too much high-temperature grease at one time will cause a lot of waste, and the shaft consumes the high-temperature grease very quickly during the rotation process. Failure to apply high-temperature grease in time will still cause shaft wear.

[0005] Therefore, it is urgent to design a shaft body with automatic lubrication function. Summary of the invention

[0006] The object of the present invention is to provide a shaft body with automatic lubrication function.

[0007] A shaft body with automatic lubrication function comprises a shaft body, a main oil chamber is opened at the center of one end of the shaft body, an oiling nozzle is fixedly arranged at the front end of the main oil chamber, a lubrication chamber is arranged inside the shaft body, the front part of the lubrication chamber is connected with the front part of the main oil chamber through an oil inlet hole, a plurality of lubrication holes connected with the lubrication chamber are opened on the side wall of the shaft body, and an automatic lubrication device is arranged at the rear part of the main oil chamber.

[0008] Furthermore, the automatic lubrication device includes a thrust spring and a rubber bowl, the rubber bowl is slidably arranged in the main oil chamber, the rubber bowl is sealed and matched with the inner wall of the main oil chamber, one end of the thrust spring is fixedly connected to the rubber bowl, and the other end of the thrust spring is fixedly connected to the rear end of the main oil chamber.

[0009] In summary, the present invention has the following beneficial effects:

[0010] After the lubricating grease is injected into the main oil chamber of the present invention, the rubber cup moves to the rear of the main oil chamber, and the thrust spring is in a compressed state. During the use of the shaft body, the compressed thrust spring gradually recovers from the compressed state to the normal state, and pushes the rubber cup to move to the front of the main oil chamber, and the rubber cup squeezes the lubricating grease, and the lubricating grease enters the lubricating chamber through the oil inlet hole, and then is discharged through the lubricating hole and automatically lubricates the side wall of the shaft body. The present invention can automatically lubricate the shaft body, does not waste lubricating grease, lubricates evenly, reduces the wear of the shaft body, and prolongs its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of a shaft body with automatic lubrication function of the present invention;

[0013] Figure 2 It is a front cross-sectional view of a shaft body with automatic lubrication function of the present invention.

[0014] In the figure: 1-shaft body, 2-main oil chamber, 3-oil injection nozzle, 4-lubricating chamber, 5-oil inlet hole, 6-lubricating hole, 7-automatic lubricating device, 71-thrust spring, 72-rubber bowl. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] The following is combined with Figure 1-2 The present invention will be further described:

[0017] A shaft body with automatic lubrication function comprises a shaft body 1, a main oil chamber 2 is provided at the center of one end of the shaft body 1, an oiling nozzle 3 is fixedly arranged at the front end of the main oil chamber 2, a lubrication chamber 4 is provided inside the shaft body 1, the front part of the lubrication chamber 4 is connected with the front part of the main oil chamber 2 through an oil inlet hole 5, a plurality of lubrication holes 6 connected with the lubrication chamber 4 are provided on the side wall of the shaft body 1, an automatic lubrication device 7 is provided at the rear part of the main oil chamber 2, the automatic lubrication device 7 comprises a thrust spring 71 and a rubber bowl 72, the rubber bowl 72 is slidably arranged in the main oil chamber 2, the rubber bowl 72 is sealed with the inner wall of the main oil chamber 2, one end of the thrust spring 71 is fixedly connected with the rubber bowl 72, and the other end of the thrust spring 71 is fixedly connected with the rear end of the main oil chamber 2.

[0018] In this embodiment, the main oil chamber 2 is a main storage chamber for lubricating grease, and the lubricating chamber 4 is a secondary storage chamber for lubricating grease.

[0019] The user injects lubricating grease into the main oil chamber 2 from the grease nozzle 3 through a grease gun or other tools. During the injection of lubricating grease, the lubricating grease applies pressure to the rear of the main oil chamber 2 and pushes the rubber cup 72 to move to the rear of the main oil chamber 2, and the thrust spring 71 is in a compressed state.

[0020] After the injection of the lubricating grease is completed, the lubricating grease no longer applies pressure to the rear part of the main oil chamber 2, and the compressed thrust spring 71 gradually recovers from the compressed state to the normal state, and pushes the rubber bowl 72 to move to the front part of the main oil chamber 2. The rubber bowl 72 squeezes the lubricating grease, and the lubricating grease enters the lubrication chamber 4 through the oil inlet hole 5, and then is discharged through the lubrication hole 6 to automatically lubricate the side wall of the shaft body 1.

[0021] In summary, the present invention is not limited to the above specific embodiments. Those skilled in the art may make several changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the claims of the present invention.

[0022] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0023] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

Claims

1. A shaft body with automatic lubrication function, comprising a shaft body (1), characterized in that: A main oil chamber (2) is provided at the center of one end of the shaft body (1), an oiling nozzle (3) is fixedly provided at the front end of the main oil chamber (2), a lubrication chamber (4) is provided inside the shaft body (1), the front part of the lubrication chamber (4) is connected to the front part of the main oil chamber (2) through an oil inlet hole (5), a plurality of lubrication holes (6) connected to the lubrication chamber (4) are provided on the side wall of the shaft body (1), and an automatic lubrication device (7) is provided at the rear part of the main oil chamber (2).

2. A shaft body with automatic lubrication function as claimed in claim 1, characterized in that: The automatic lubrication device (7) comprises a thrust spring (71) and a rubber bowl (72), wherein the rubber bowl (72) is slidably arranged in the main oil chamber (2), the rubber bowl (72) is sealingly matched with the inner wall of the main oil chamber (2), one end of the thrust spring (71) is fixedly connected to the rubber bowl (72), and the other end of the thrust spring (71) is fixedly connected to the rear end of the main oil chamber (2).

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