Screw rod with self-lubricating function

Abstract

The lead screw with the self-lubricating function comprises a lead screw body and a nut, an oil storage groove is formed in the top of the nut, a plurality of oil injection holes are formed in the bottom of the oil storage groove, the oil injection holes correspond to threaded grooves in a one-to-one mode, an oil storage mechanism is arranged in the oil storage groove, and the oil storage mechanism is of a composite structure. The device comprises a filter screen, a sponge, a cover plate and a gland from bottom to top, an oil inlet hole is formed in the cover plate, the upper surface of the gland is of an inclined structure, the left side of the gland is high, the right side of the gland is low, a nut is sleeved with a pressing ring, and when the pressing ring moves leftwards, the pressing ring exerts force downwards on the gland. The oil storage tank is arranged, the sponge is arranged in the oil storage tank, and the sponge is extruded, so that oil enters the surface of the lead screw body through the oil injection hole, the lead screw is lubricated, and the labor intensity of workers is relieved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rods, in particular to a screw rod with a self-lubricating function. Background Art

[0002] Ball screws are the most commonly used transmission components in tool and precision machinery. Their primary function is to convert rotational motion into linear motion or torque into repetitive axial force, while offering high precision, reversibility, and efficiency. Due to their minimal frictional resistance, ball screws are widely used in a variety of industrial equipment and precision instruments.

[0003] The screw rod is usually used in conjunction with the screw rod nut. In order to better cooperate with the screw rod and the screw rod nut, lubricating oil is usually applied to the outer wall of the screw rod. In the prior art, manual wiping and lubrication of the screw rod is usually adopted. This method increases the labor intensity of the staff, is not convenient for applying lubricating oil to the screw rod, and has certain limitations. Utility Model Content

[0004] The purpose of the utility model is to provide a screw rod with a self-lubricating function in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a screw with self-lubricating function, including a screw body and a nut, and its innovation lies in: an oil storage tank is opened on the top of the nut, and a plurality of oil filling holes are opened at the bottom of the oil storage tank, and the oil filling holes correspond one by one to the thread grooves respectively. An oil storage mechanism is arranged inside the oil storage tank, and the oil storage mechanism is a composite structure, which includes a filter screen, a sponge, a cover plate and a pressure cover from bottom to top. An oil inlet hole is opened on the cover plate, and the upper surface of the pressure cover is an inclined structure with the left side higher and the right side lower. A pressure ring is sleeved on the nut, and the pressure ring applies downward force to the pressure cover when it moves to the left.

[0006] Furthermore, the upper surface of the gland protrudes from the oil storage tank.

[0007] Furthermore, the left side of the nut is threadedly connected to a limiting ring, and the outer diameter of the limiting ring is larger than the inner diameter of the pressure ring.

[0008] Furthermore, a strip groove is provided at the bottom of the nut, an oiling sponge is provided inside the strip groove, and the oiling sponge is in contact with the surface of the screw rod body.

[0009] After adopting the above structure, the beneficial effects of the utility model are:

[0010] The utility model provides an oil storage tank with a sponge inside the oil storage tank, and squeezes the sponge so that oil enters the surface of the screw rod body through the oil filling hole, thereby lubricating the screw rod and reducing the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] Description of reference numerals:

[0013] 1 screw body, 2 nut, 3 oil storage tank, 4 oil filling hole, 5 oil storage mechanism, 51 filter screen, 52 sponge, 53 cover plate, 54 pressure cover, 55 oil inlet hole, 6 pressure ring, 7 limit ring, 8 strip groove, 9 oiling sponge. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] See Figure 1 A screw with self-lubricating function includes a screw body 1 and a nut 2. An oil storage tank 3 is provided on the top of the nut 2, and a plurality of oil filling holes 4 are provided at the bottom of the oil storage tank 3. The oil filling holes 4 correspond to the thread grooves one by one. An oil storage mechanism 5 is arranged inside the oil storage tank 3. The oil storage mechanism 5 is a composite structure, which includes a filter screen 51, a sponge 52, a cover plate 53 and a pressure cover 54 from bottom to top. An oil inlet hole 55 is provided on the cover plate 53. The upper surface of the pressure cover 54 is an inclined structure with the left side higher and the right side lower. A pressure ring 6 is sleeved on the nut 2. When the pressure ring 6 moves to the left, it applies downward force to the pressure cover 54. Specifically, the oil is transported to the sponge 52 for storage through the oil inlet hole 55, and the oil inlet hole 55 is sealed by the pressure cover 54; by moving the pressure ring 6 to the left, since the left side of the pressure cover 54 is higher than the right side, the pressure ring 6 applies force to the pressure cover 54, and the pressure cover 54 applies force to the sponge 52, so that the oil falls from the oil filling hole 4 into the threaded groove of the screw body 1, thereby lubricating the screw body 1; the further the pressure ring 6 moves to the left, the greater the force applied, and the more oil is squeezed out, which can be determined according to the actual situation.

[0017] In this embodiment, the upper surface of the pressure cover 54 protrudes from the oil storage tank 3, which is beneficial for the pressure ring 6 to apply force to the pressure cover 54.

[0018] In this embodiment, the left side of the nut 2 is threadedly connected to a limiting ring 7, and the outer diameter of the limiting ring 7 is larger than the inner diameter of the pressure ring 6. The limiting ring 7 is used to prevent the pressure ring 6 from being separated from the nut 2, ensuring the normal use of the pressure ring.

[0019] In this embodiment, a strip groove 8 is formed at the bottom of the nut 2, and an oiling sponge 9 is arranged inside the strip groove 8. The oiling sponge 9 is attached to the surface of the screw body. The oiling sponge 9 evenly applies the oil on the surface of the screw body 1, thereby improving the lubrication effect.

[0020] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A screw with self-lubricating function, comprising a screw body and a nut, characterized in that: An oil storage tank is provided on the top of the nut, and a plurality of oil filling holes are provided at the bottom of the oil storage tank, and the oil filling holes correspond to the thread grooves one by one. An oil storage mechanism is provided inside the oil storage tank, and the oil storage mechanism is a composite structure, which includes a filter screen, a sponge, a cover plate and a pressure cover from bottom to top. An oil inlet hole is provided on the cover plate, and the upper surface of the pressure cover is an inclined structure with the left side higher and the right side lower. A pressure ring is sleeved on the nut, and the pressure ring applies downward force to the pressure cover when it moves to the left.

2. The self-lubricating screw according to claim 1, characterized in that: The upper surface of the gland protrudes from the oil storage tank.

3. The self-lubricating screw according to claim 1, characterized in that: The left side of the nut is threadedly connected to a limiting ring, and the outer diameter of the limiting ring is larger than the inner diameter of the pressure ring.

4. The self-lubricating screw according to claim 1, characterized in that: A strip groove is provided at the bottom of the nut, an oiling sponge is arranged inside the strip groove, and the oiling sponge is in contact with the surface of the screw rod body.

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