A ball screw convenient for adding lubricating oil

Abstract

The utility model is a ball screw that is convenient for adding lubricating oil, comprising a screw, a screw nut sleeved on the screw, a slideway provided in the screw nut, a ball rollingly connected to the screw in the slideway, an oil inlet hole connected to the slideway vertically provided on the screw nut, an oil storage barrel installed on the screw nut, an oil inlet opening and closing component and an oil adding limiting component installed in the oil storage barrel. The utility model has the advantages of: the oil storage barrel is opened and closed by the oil inlet opening and closing component, which is convenient for injecting lubricating oil into the oil storage barrel and sealing it, a certain amount of lubricating oil is stored in the oil storage barrel, and it is not necessary to add lubricating oil multiple times, which is convenient to use; the amount of lubricating oil added is limited by the oil adding limiting component, which prevents waste of lubricating oil and causes low utilization rate of lubricating oil.

Description

Technical Field

[0001] The utility model relates to the technical field of ball screws, in particular to a ball screw which is convenient for adding lubricating oil. Background Art

[0002] Ball screws are devices that can convert rotational motion into linear motion, and the friction resistance encountered during the conversion process is very small, so they are widely used in various industrial equipment. Since there are multiple balls inside the ball screw nut, the friction of the balls will increase after long-term use, which is easy to produce noise and affect the normal operation and service life of the screw, so lubricating oil needs to be added.

[0003] Application number: CN202022535454.2 discloses a ball screw, including a sleeve, a screw is arranged in the sleeve, a ball is arranged in the threaded groove in the sleeve and the screw, a circular groove is provided on the inner surface of the upper end of the sleeve, a concave ring sleeve is slidably connected in the circular groove, a screw is connected to the inner surface of the circular groove of the sleeve by a thread, a ring groove is provided on the upper end of the screw, the circular mouth of the concave ring sleeve is stuck in the ring groove of the screw, a spring is placed in the circular groove, the spring squeezes the concave ring sleeve, a guide hole is provided on the inner surface of the circular groove of the sleeve, which is convenient for adding lubricating oil and convenient for operation and use, and a convex ring rubber sleeve with a threaded protrusion is provided on the end face, which is convenient for the screw to fit and seal. However, the application device is not convenient for retaining lubricating oil to a certain extent, and it is necessary to add lubricating oil multiple times, which is troublesome to use, and it is easy to cause lubricating oil waste, resulting in low utilization rate of lubricating oil. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the above problems and provide a ball screw which is convenient for adding lubricating oil.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a ball screw that is easy to add lubricating oil, including a screw, a screw nut is sleeved on the screw, a slideway is provided in the screw nut, a ball rollingly connected to the screw is in the slideway, an oil inlet hole connected to the slideway is vertically provided on the screw nut, an oil storage barrel is installed on the screw nut, and an oil inlet opening and closing assembly and an oil adding restriction assembly are installed in the oil storage barrel.

[0006] Furthermore, a mounting plate screw-connected to the lead screw nut is provided at the lower end of the oil storage barrel, and a connecting platform screw-connected to the mounting plate is provided on the lead screw nut.

[0007] Furthermore, the oil inlet opening and closing assembly includes a support rod vertically arranged in the center of the oil storage barrel, a sealing plate and a flat plate are respectively fixed to the upper and lower ends of the support rod, horizontal rods are symmetrically provided at both ends of the flat plate and are screwed to the inner wall of the oil storage barrel, an opening and closing barrel is slidably connected to the upper end of the oil storage barrel, and the bottom wall of the opening and closing barrel is provided with two oil inlet holes through which the support rod passes and the diameter of which is larger than the diameter of the support rod, and a spring mounted on the support rod is fixed between the opening and closing barrel and the flat plate.

[0008] Furthermore, a sealing gasket in contact with the inner bottom wall of the oil storage barrel is fixed to the lower end of the sealing plate, and the diameter of the sealing plate and the sealing gasket is larger than the diameter of the second oil inlet hole.

[0009] Furthermore, the oil filling restriction assembly includes an oil filling rod vertically passing through the support rod, the sealing plate, and the center of the flat plate, the upper and lower ends of the oil filling rod are respectively provided with a butterfly knob and a connecting plate, a columnar sponge is fixed to the lower end of the connecting plate, and a through hole of the same diameter is provided in the center of the bottom wall of the oil storage barrel for the connecting plate and the columnar sponge to pass through, and two springs mounted on the oil filling rod are fixed between the butterfly knob and the sealing plate.

[0010] Furthermore, the support rod, sealing plate and flat plate are provided with a through hole 2 in the center through which the oil filling rod passes and is slidably connected, and limiting grooves are provided on both sides of the through hole 2, and limiting blocks are fixed on both sides of the oil filling rod and are slidably connected to the limiting grooves.

[0011] The advantages of the utility model compared with the prior art are:

[0012] 1. The oil inlet opening and closing assembly is used to control the opening and closing of the oil storage barrel, which makes it easy to inject lubricating oil into the oil storage barrel and seal it. A certain amount of lubricating oil can be stored in the oil storage barrel, so there is no need to add lubricating oil multiple times, which is convenient to use.

[0013] 2. The amount of lubricating oil added is limited by limiting the oil adding component, that is, by limiting the columnar sponge in the oil adding component that can enter and exit the through hole and slideway of the oil storage barrel and can contact the ball to add lubricating oil to the ball, so as to prevent the waste of lubricating oil and cause low utilization rate of lubricating oil.

[0014] 3. A mounting plate connected to the connecting platform screw on the lead screw nut is provided at the lower end of the oil storage barrel, which is convenient for installation and disassembly of the oil storage barrel and for maintenance of the oil inlet opening and closing components and the oil filling restriction components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall internal structure diagram of the utility model.

[0016] Figure 2 It is the overall structure diagram of the utility model.

[0017] Figure 3 It is a structural diagram of the oil inlet opening and closing component of the utility model.

[0018] Figure 4 It is a structural diagram of the oil-adding restriction component of the utility model.

[0019] As shown in the figure: screw 1, screw nut 2, oil inlet hole 201, slideway 3, ball 4, oil storage barrel 5, through hole 501, oil inlet opening and closing assembly 6, oil adding limit assembly 7, mounting plate 8, support rod 9, sealing plate 10, through hole 2 1001, limiting groove 1002, flat plate 11, horizontal rod 12, connecting platform 13, limiting block 14, opening and closing barrel 15, oil inlet hole 2 1501, spring 16, sealing gasket 17, oil adding rod 18, butterfly knob 19, connecting plate 20, columnar sponge 21, spring 22. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Combined with Figure 1 A ball screw that is easy to add lubricating oil, includes a screw 1, a screw nut 2 is sleeved on the screw 1, a slideway 3 is provided in the screw nut 2, a ball 4 rollingly connected to the screw 1 is rollingly connected in the slideway 3, an oil inlet hole 201 connected to the slideway 3 is vertically provided on the screw nut 2, an oil storage barrel 5 is installed on the screw nut 2, and an oil inlet opening and closing component 6 and an oil adding restriction component 7 are installed in the oil storage barrel 5.

[0022] During the specific implementation of the utility model, the opening and closing of the oil storage barrel 5 is controlled by the oil inlet opening and closing component 6, so that lubricating oil is injected into the oil storage barrel 5 and sealed. A certain amount of lubricating oil is stored in the oil storage barrel 5, and there is no need to add lubricating oil multiple times, which is convenient to use. The amount of lubricating oil added is limited by the oil adding component 7, so as to prevent the waste of lubricating oil and the low utilization rate of lubricating oil.

[0023] Combined with Figure 2 The lower end of the oil storage barrel 5 is provided with a mounting plate 8 screwed to the lead screw nut 2, and the lead screw nut 2 is provided with a connecting platform 13 screwed to the mounting plate 8, which is convenient for the installation and disassembly of the oil storage barrel 5 and the maintenance of the oil inlet opening and closing component 6 and the oil adding limiting component 7.

[0024] Combined with Figure 3The oil inlet opening and closing assembly 6 includes a support rod 9 vertically arranged in the center of the oil storage barrel 5, and a sealing plate 10 and a flat plate 11 are fixed to the upper and lower ends of the support rod 9 respectively. Horizontal rods 12 connected to the inner wall of the oil storage barrel 5 with screws are symmetrically provided at both ends of the flat plate 11. An opening and closing barrel 15 is slidably connected to the upper end of the oil storage barrel 5. The bottom wall of the opening and closing barrel 15 is provided with an oil inlet hole 1501 through which the support rod 9 passes and the diameter is larger than the diameter of the support rod 9. A spring 16 mounted on the support rod 9 is fixed between the opening and closing barrel 15 and the flat plate 11.

[0025] Combined with Figure 3 A sealing gasket 17 in contact with the inner bottom wall of the oil storage barrel 5 is fixed to the lower end of the sealing plate 10. The diameters of the sealing plate 10 and the sealing gasket 17 are larger than the diameter of the second oil inlet hole 1501, thereby increasing the sealing performance of the oil storage barrel 5 and preventing leakage of lubricating oil.

[0026] When the oil inlet opening and closing assembly 6 is in use, the opening and closing barrel 15 is pressed to expose the second oil inlet hole 1501, and lubricating oil is injected into the opening and closing barrel 15. The lubricating oil enters the oil storage barrel 5 through the second oil inlet hole 1501. The opening and closing barrel 15 is released, and the opening and closing barrel 15 is reset by the spring 16 to make the opening and closing barrel 15 rise, and the second oil inlet hole 1501 is sealed by the sealing plate 10 and the sealing gasket 17, so that the lubricating oil is sealed and stored through the oil storage barrel 5.

[0027] Combined with Figure 4 The oil-adding limiting assembly 7 includes an oil-adding rod 18 vertically passing through the center of the support rod 9, the sealing plate 10, and the flat plate 11. The upper and lower ends of the oil-adding rod 18 are respectively provided with a butterfly knob 19 and a connecting plate 20. A columnar sponge 21 is fixed to the lower end of the connecting plate 20. A through hole 501 with the same diameter through which the connecting plate 20 and the columnar sponge 21 pass is provided at the center of the bottom wall of the oil storage barrel 5. A spring 22 sleeved on the oil-adding rod 18 is fixed between the butterfly knob 19 and the sealing plate 10. A through hole 2 1001 is provided in the center of the support rod 9, the sealing plate 10, and the flat plate 11, through which the oil-adding rod 18 passes and is slidably connected. The two sides of the through hole 1001 are provided with limiting grooves 1002 that penetrate the lower end. The two sides of the oil-adding rod 18 are fixed with limiting blocks 14 that are slidably connected to the limiting grooves 1002.

[0028] When the oil filling assembly 7 is used, the initial position of the columnar sponge 21 is located on the upper side of the through hole 501. Figure 4, absorb the lubricating oil and limit excessive lubricating oil from entering the through hole 501, and store the lubricating oil in the oil storage barrel 5 to prevent waste of lubricating oil; when in use, press and turn the butterfly knob 19, so that the oil adding rod 18 drives its lower end connecting plate 20 and columnar sponge 21 to enter the oil inlet hole 201, loosen the butterfly knob 19, and separate from the limiting groove 1002 through the limiting block 14 and abut against the bottom wall of the flat plate 11, so that the spring 22 does not reset, fix the position of the oil adding rod 18, at this time, the lower end of the columnar sponge 21 enters the slideway 3 and contacts the ball 4, and when the lead screw 1 is running, a number of balls 4 roll and contact the lower end of the columnar sponge 21 to realize the addition of lubricating oil; after the lubricating oil is added, rotate and pull the butterfly knob 19, so that the limiting block 14 enters the limiting groove 1002, so that the oil adding rod 18 and the parts thereon are reset, which is convenient to use and reduces the waste of lubricating oil.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A ball screw for easy addition of lubricating oil, comprising a screw (1), a screw nut (2) sleeved on the screw (1), a slideway (3) provided inside the screw nut (2), a ball (4) rollingly connected to the screw (1) in the slideway (3), characterized in that: The lead screw nut (2) is vertically provided with an oil inlet hole (201) connected to the slideway (3); an oil storage barrel (5) is installed on the lead screw nut (2); and an oil inlet opening and closing component (6) and an oil adding limiting component (7) are installed in the oil storage barrel (5).

2. A ball screw that is easy to add lubricating oil according to claim 1, characterized in that: The lower end of the oil storage barrel (5) is provided with a mounting plate (8) screw-connected to the lead screw nut (2), and the lead screw nut (2) is provided with a connecting platform (13) screw-connected to the mounting plate (8).

3. A ball screw convenient for adding lubricating oil according to claim 1, characterized in that: The oil inlet opening and closing assembly (6) comprises a support rod (9) vertically arranged at the center of the oil storage barrel (5), a sealing plate (10) and a flat plate (11) being fixed to the upper and lower ends of the support rod (9) respectively, horizontal rods (12) being symmetrically arranged at both ends of the flat plate (11) and being screwed to the inner wall of the oil storage barrel (5), an opening and closing barrel (15) being slidably connected to the upper end of the oil storage barrel (5), the bottom wall of the opening and closing barrel (15) being provided with two oil inlet holes (1501) through which the support rod (9) passes and having a diameter greater than that of the support rod (9), and a spring (16) being sleeved on the support rod (9) being fixed between the opening and closing barrel (15) and the flat plate (11).

4. A ball screw convenient for adding lubricating oil according to claim 3, characterized in that: A sealing gasket (17) in contact with the inner bottom wall of the oil storage barrel (5) is fixed to the lower end of the sealing plate (10); the diameters of the sealing plate (10) and the sealing gasket (17) are larger than the diameter of the second oil inlet hole (1501).

5. The ball screw convenient for adding lubricating oil according to claim 3, characterized in that: The oil filling limiting assembly (7) comprises an oil filling rod (18) vertically passing through the center of the support rod (9), the sealing plate (10) and the flat plate (11); the upper and lower ends of the oil filling rod (18) are respectively provided with a butterfly knob (19) and a connecting plate (20); a columnar sponge (21) is fixed to the lower end of the connecting plate (20); a through hole (501) of the same diameter is provided at the center of the bottom wall of the oil storage barrel (5) through which the connecting plate (20) and the columnar sponge (21) pass; and a spring (22) sleeved on the oil filling rod (18) is fixed between the butterfly knob (19) and the sealing plate (10).

6. A ball screw convenient for adding lubricating oil according to claim 5, characterized in that: A second through hole (1001) is provided in the center of the support rod (9), the sealing plate (10) and the flat plate (11), through which the oil filling rod (18) passes and is slidably connected. Limiting grooves (1002) are provided on both sides of the second through hole (1001) and are penetrated at the lower end. Limiting blocks (14) slidably connected to the limiting grooves (1002) are fixed on both sides of the oil filling rod (18).

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