TWM549283U - Ball screw with dust-proof and self-lubricating module - Google Patents

Description

Ball screw with dustproof self-lubricating module

The present invention relates to a ball screw, and in particular to a ball screw having a dustproof self-lubricating module.

In the Republic of China application No. 099217662 "Beam Screw Shaker Improvement Structure", which is mainly composed of a wiper, an annular lining and a C-shaped buckle, which are internally arranged in the nut of the ball screw, by means of the annular lining The sheet abuts against the first side edge portion of the wiper, and then the C-shaped buckle abuts against the annular lining to simultaneously limit the annular lining and the wiper to the wiper Dust-proof effect, however, the patent case has only dust-proof function and does not have the function of lubrication. Therefore, the utility is obviously insufficient, and if the lubrication function is to be increased, the general practice is to additionally increase the fuel tank at the end face of the nut, and increase The length of the nut will detract from the distance that the nut can be displaced.

Further, referring to Fig. 1, one of the drawings relating to the lubrication structure of the ball screw of Japanese Patent (JPB_0003508402) is shown. The solid lubricating unit 11 is mainly positioned between the nut 13 and the screw 14 by the screw 12, and the solid lubricating unit 11 has a lubricating portion 111 provided on the outer spiral channel 141 of the screw 14, by the solid The lubricating unit 11 can directly lubricate the screw 14, so that the balls 15 can be smoothly circulated and stress can be eliminated. However, the prior patent has only a lubricating function and does not have a high dustproof function, and the dustproof effect can be achieved by the lubricating portion 111 provided in the outer spiral channel 141 of the screw 14, but the lubricating portion alone 111 to carry out a single dust, the effect is obviously insufficient.

The purpose of the present invention is to provide a ball screw with a dust-proof self-lubricating module, which mainly improves the dustproof effect and has a self-lubricating effect.

In order to achieve the above object, the present invention is a ball screw with a dustproof self-lubricating module, comprising: a screw having an axis and an outer spiral channel spirally disposed around the axis; a nut along the axis Nested in the screw and including an inner spiral channel spirally disposed inside the axis, and the inner spiral channel and the outer spiral channel form a load path for accommodating a plurality of balls, and a direction along the axis a receiving ring groove recessed in one end surface of the nut; and a dust-proof self-lubricating module disposed in the receiving ring groove along the axis direction, and including a guiding ring member, a scraper, and a solid a lubrication unit, and a limit ring, wherein:

The guiding ring member is disposed on the screw and disposed in the receiving ring groove, and has a first guiding ring surface that abuts against a bottom surface of the groove of the receiving ring groove, and is opposite to the first guiding a second guiding ring surface of the torus, an inner guiding ring surface connecting the first and second guiding ring faces and abutting against the surface of the screw, and a protruding protrusion on the inner guiding ring surface and abutting the outer surface a guiding portion of the spiral channel; the scraper is disposed on the screw and disposed in the receiving ring groove, and has a first wiping ring surface against the second guiding ring surface, and a reverse direction a second wiping ring surface of the first wiping ring surface, a lubrication groove recessed by the first wiping ring surface toward the second wiping ring surface, and a scraping surface abutting the outer spiral groove a brushing portion; the solid lubricating unit is made of a lubricating material and is disposed in the lubricating groove and is in surface contact with the second guiding ring, so that the second guiding ring surface guides the lubricating material to the guiding portion And the outer spiral groove; the limiting ring member is sleeved on the screw and disposed in the receiving ring groove, and abuts against the second brushing ring surface to prevent the guiding ring member and the scraper And the solid lubrication sheet From the receiving ring groove.

Preferably, the two end faces of the nut are recessed in the axial direction, and the number of the dust-proof self-lubricating modules is two, and are respectively disposed along the axial direction of the two receiving ring grooves.

Preferably, the dust-proof self-lubricating module further comprises a gasket disposed between the bottom surface of the groove of the receiving ring groove and the first guiding ring surface.

Preferably, wherein the guiding ring member is felt or foam.

Preferably, the slot wall surface of the nut accommodating ring groove is recessed with a limiting recess, and the limiting ring member is simultaneously located at the limiting recess and abuts against the second wiper ring surface of the wiper.

Preferably, the volume of the lubrication groove of the wiper is 9% to 43% of the total volume of the wiper.

Preferably, wherein the limiting ring member is a C-shaped buckle.

Accordingly, the present invention provides a ball screw with a dust-proof self-lubricating module. Since the wiper is closer to the end surface of the nut than the guiding ring member, the first time is performed by the wiper. The dust-proof operation is performed by the guide ring member for the second dust-proof operation, thereby improving the dust-proof effect. In addition, the guide ring member is capable of guiding the lubricating material to the screw while being dust-proof. Lubrication, therefore, this creation can indeed achieve the purpose of improving dustproof effect and self-lubricating effect.

Before the detailed description is made, it is noted that in the following description, similar elements are denoted by the same reference numerals.

As shown in FIG. 2 to FIG. 5 , the first embodiment of the present invention provides a ball screw with a dust-proof self-lubricating module, which mainly comprises a screw 21 , a nut 23 , a dustproof module 25 , and a ball screw . The dust-proof and self-lubricating module A is composed of:

The screw 21 has an axis 211 and an outer spiral channel 212 spirally disposed around the axis 211.

The nut 23 is sleeved on the screw 21 along the axis 211, and includes an inner spiral channel 231 spirally disposed around the axis 211, and the inner spiral channel 231 and the outer spiral channel 212 form a The load path of the plurality of balls 27 and the accommodating ring grooves 232 and 233 which are respectively recessed on the opposite ends of the nut 21 in the direction of the axis 211; in this embodiment, the nut 23 accommodates the ring groove 232 The slot wall surfaces 232A and 233A of the 233 are further recessed with a limiting recess 234.

The dustproof module 25 is disposed in a receiving ring groove 232 adjacent to the flange end 235 of the nut 24. The dustproof module 25 is composed of an annular lining 251, a wiper 252, and a C-shaped buckle 253. And disposed in the receiving ring groove 232 of the nut 24 in sequence.

Since the screw 21, the nut 23, and the dustproof module 25 are assembled in a conventional manner, and the manner of actuation thereof is the same as that of the prior art, and is not the focus of the present invention, therefore, for the components (refer to the screw 21, the nut) 23, and the detailed structure, assembly method and operation mode of the dustproof module 25) are not described in detail.

The dust-proof self-lubricating module A is disposed in the receiving ring groove 233 along the axis 211, and includes a gasket 30, a guiding ring member 40, a wiper 50, a solid lubricating unit 60, and a limit Bit ring member 70, wherein:

The washer 30 is a groove bottom surface 233B that is sleeved with the screw 21 and abuts against the receiving ring groove 233.

The guiding ring member 40 is disposed on the screw ring 21 and disposed in the receiving ring groove 233 of the nut 23, and has a first guiding ring surface 41 against a ring side of the gasket 30, and a reverse direction a second guiding ring surface 42 of the first guiding ring surface 41, an inner guiding ring surface 43 connecting the first and second guiding ring surfaces 41 and 42 and abutting against the surface 213 of the screw 21, and a convex portion The guiding portion 44 is disposed on the inner guiding ring surface 43 and abuts against the outer spiral channel 212. In the embodiment, the guiding ring member 40 is felt, but not limited thereto, and may also be a foam. Such as porous objects.

The squeegee 50 is disposed on the arranging ring groove 233 of the nut 23 and has a first wiping ring surface 51 against the second guiding ring surface 42 and a reverse direction. a second wiping ring surface 52 of the first wiping ring surface 51, a lubrication groove 53 recessed by the first wiping ring surface 51 toward the second wiping ring surface 52, and a contact The wiping portion 54 of the outer spiral channel 212.

The solid lubricating unit 60 is made of a lubricating material and is disposed on the lubricating groove 53 of the wiper 50 and is in contact with the second guiding ring surface 42 of the guiding ring member 40 to make the second guiding ring surface The lubricant 42 is guided to the guide portion 44 of the guide ring member 40 and the outer spiral channel 212 of the screw 21.

The limiting ring member 70 is disposed on the screw ring 21 and is disposed in the receiving ring groove 233 of the nut 23 and abuts against the second wiping ring surface 52 to prevent the guiding ring member 40 from being scraped. The brush ring 50 and the solid lubricating unit 60 are separated from the receiving ring groove 233 of the nut 23; in this embodiment, the limiting ring member 70 is a C-shaped buckle and is located at the limiting recess 234 at the same time. The second wiper ring surface 52 of the wiper 50.

The above description is the configuration description of each main component of the creation embodiment. The mode of operation of this creation and its effects are described below.

The dust-proof self-lubricating module A is disposed in the receiving ring groove 233 of the nut 23 along the axis 211, and the guiding ring member 40 and the wiper 50 of the dust-proof self-lubricating module A are sequentially disposed. In the accommodating ring groove 233, therefore, the squeegee 50 is disposed closer to the end surface of the nut 23 than the guiding ring member 40, and therefore, the squeegee 50 can first block the particle size. Larger dust or iron filings to perform the first dust-proof operation while avoiding the destruction of dust or iron filings having a larger particle size into the felt guiding ring member 40; in addition, the guiding ring member 40 is sealed The finer dust is blocked, in particular, the inner guiding ring surface 43 of the guiding ring member 40 abuts against the surface 213 of the screw 21, and the guiding portion 44 abuts the outer spiral channel 212 of the screw 21. And effectively blocking the fine dust from being attached to each of the balls 27 through the guiding ring member 40, so that the second dust-proof operation can be performed by the guiding ring member 40; accordingly, the dust is self-created The Run Module A has two dust-proof mechanisms, which can effectively improve the dust-proof effect.

In addition, the present invention performs a hollowing out design particularly in the dust-proof function of the wiper 50 to form a lubrication groove 53 in which a solid lubrication unit 60 composed of a lubricating material is provided, and The solid lubrication unit 60 is in contact with the second guiding annulus 42 of the guiding ring member 40. Therefore, the guiding ring member 42 guides the lubricating material to the guiding portion 44 and the outer spiral channel of the screw 21 212, in order to lubricate the screw 21, so that each of the balls 27 can circulate smoothly and relieve stress. Therefore, the guide ring member 40 can guide the lubricating material to the screw 21 while being dustproof. 21 Lubrication, according to this, this creation can indeed achieve the purpose of improving dustproof effect and self-lubricating effect.

It is worth mentioning that, in the design of the wiper 50, the lubrication groove 53 may be a single ring shape, or a plurality of curved shapes, regardless of the number of the lubrication grooves 53, The volume of the lubrication groove 53 is 9% to 43% of the total volume of the wiper 50. When the volume of the lubrication groove 53 is less than 9% of the total volume of the wiper 50, the lubricating life of the oil content may be less than two years. When the volume of the lubrication groove 53 is higher than 43% of the total volume of the wiper 50, the wiper 50 may be defective in molding, thereby causing defective products.

Referring to FIG. 6 , a second embodiment of the present invention provides a ball screw with a dust-proof self-lubricating module, which is also composed of a screw 21 , a nut 23 , a dustproof module 25 , and a dust-proof self-lubricating module A. The dustproof self-lubricating module A is also composed of a gasket 30, a guiding ring member 40, a wiper 50, a solid lubricating unit 60, and a limiting ring member 70, and has the same configuration and function. An embodiment is not described again. The difference in the second embodiment lies in:

The dust-proof self-lubricating module A is disposed in the receiving ring groove 232 adjacent to the flange end 235 of the nut 23, and the dustproof module 25 is disposed in the receiving ring groove away from the flange end 235 of the nut 23. Within 233, another state of implementation is achieved.

Referring to FIG. 7 , a third embodiment of the present invention provides a ball screw with a dust-proof self-lubricating module, which is composed of a screw 21 , a nut 23 , and a dust-proof self-lubricating module A, and the dustproofing The lubrication module A is also composed of a gasket 30, a guiding ring member 40, a wiper 50, a solid lubricating unit 60, and a limiting ring member 70. Since the configuration and the effect are the same as those in the first embodiment, Again, as for the third embodiment, the difference lies in:

The two end faces of the nut 23 are recessed in the direction of the axis 211. The number of the dust-proof self-moulding molds A is two, and is respectively disposed along the axis 211 in the two receiving rings. The grooves 232 and 233 can further improve the dustproof effect and improve the lubricating effect.

In conclusion, the above embodiments and drawings are only preferred embodiments of the present invention, and the scope of the novel implementation cannot be limited thereto, that is, the equal changes and modifications made by the scope of the novel application are all It should be within the scope of this new patent.

<知知>
11‧‧‧Solid lubrication unit
111‧‧‧Lubrication Department
12‧‧‧ screws
13‧‧‧ Nuts
14‧‧‧ screw
141‧‧‧outer spiral channel
111‧‧‧Lubrication Department
15‧‧‧Road <This creation>
21‧‧‧ screw
211‧‧‧ axis
212‧‧‧Spiral spiral channel
23‧‧‧ Nuts
231‧‧‧inner spiral channel
232, 233‧‧‧ accommodate ring groove
232A, 233A‧‧‧ slot wall
232B‧‧‧Slot bottom
234‧‧‧Limited recess
235‧‧‧Flange end
25‧‧‧Dustproof module
251‧‧‧ring lining
252‧‧‧Scratch
253‧‧‧C-shaped buckle
A‧‧‧Dust-proof self-lubricating module
30‧‧‧Washers
40‧‧‧ Guide ring
41‧‧‧First guiding torus
42‧‧‧Second guiding torus
43‧‧‧Inner guide torus
44‧‧‧Guide
50‧‧‧Scratch
51‧‧‧First wiper torus
52‧‧‧Second wiper torus
53‧‧‧Lubrication groove
54‧‧‧Scratch
60‧‧‧Solid lubrication unit
70‧‧‧ Limit ring

Fig. 1 is a view showing a pattern of a ball screw lubricating structure of a Japanese patent (JPB_0003508402). Figure 2 is an exploded perspective view of the first embodiment of the present creation. Figure 3 is a perspective assembled view of the first embodiment of the present creation. Figure 4 is a cross-sectional view showing the first embodiment of the present creation. Fig. 5 is a partial enlarged view of Fig. 4; Fig. 6 is a cross-sectional view showing the second embodiment of the present invention, showing a state in which the other end face of the nut is provided with a dust-proof self-lubricating module. Fig. 7 is a cross-sectional view showing a third embodiment of the present invention, showing a state in which both ends of the nut are provided with a dustproof self-lubricating module.

21‧‧‧ screw

211‧‧‧ axis

212‧‧‧Spiral spiral channel

23‧‧‧ Nuts

235‧‧‧Flange end

25‧‧‧Dustproof module

253‧‧‧C-shaped buckle

A‧‧‧Dust-proof self-lubricating module

30‧‧‧Washers

40‧‧‧ Guide ring

41‧‧‧First guiding torus

42‧‧‧Second guiding torus

50‧‧‧Scratch

51‧‧‧First wiper torus

52‧‧‧Second wiper torus

53‧‧‧Lubrication groove

54‧‧‧Scratch

60‧‧‧Solid lubrication unit

70‧‧‧ Limit ring

Claims (7)

A ball screw with a dust-proof self-lubricating module, comprising: a screw having an axis and an outer spiral channel spirally disposed around the axis; a nut disposed along the axis of the screw and including An inner spiral channel disposed spirally around the axis, and the inner spiral channel and the outer spiral channel form a load path for accommodating a plurality of balls, and a recessed one of the nuts along the axis direction a receiving ring groove of the end surface; and a dust-proof self-lubricating module disposed in the receiving ring groove along the axis direction, and comprising a guiding ring member, a scraper, a solid lubricating unit, and a limiting ring The guiding ring member is disposed on the screw and disposed in the receiving ring groove, and has a first guiding ring surface against the bottom surface of the groove of the receiving ring groove, and a reverse direction a second guiding ring surface of the first guiding ring surface, an inner guiding ring surface connecting the first and second guiding ring faces and abutting against the screw surface, and a protrusion protruding from the inner guiding ring surface a guiding portion that is attached to the outer spiral channel; the scraper is disposed on the screw and disposed in the receiving ring groove Having a first wiper ring surface against the second guide ring surface, a second wiper ring surface opposite to the first wiper ring surface, and a first wiper ring facing the first a lubricating groove recessed in the toroid of the scraping brush and a scraping portion abutting against the outer spiral channel; the solid lubricating unit is composed of a lubricating material and is disposed on the lubricating groove and the second guiding The toroidal contact is configured to guide the lubricating material to the guiding portion and the outer spiral channel; the limiting ring member is sleeved and disposed in the receiving ring groove, and Abutting against the second wiper ring surface prevents the guide ring member, the wiper, and the solid lubrication unit from being disengaged from the receiving ring groove. The ball screw of the dust-proof self-lubricating module of claim 1, wherein the two end faces of the nut are recessed in the axial direction; the number of the dust-proof self-lubricating module is two, and respectively The accommodating ring groove is disposed along the axis direction. The ball screw with a dust-proof self-lubricating module according to claim 1, wherein the dust-proof self-lubricating module further comprises a gasket, the gasket is sleeved on the bottom surface of the groove of the receiving ring groove and the first Guide between the torus faces. The ball screw of the dustproof self-lubricating module according to claim 1, wherein the guiding ring member is felt or foam. The ball screw of the dust-proof self-lubricating module of claim 1, wherein the slot wall surface of the nut accommodating ring groove is recessed with a limiting recess, and the limiting ring is located at the limiting recess and the abutment At the second wiper ring of the wiper. The ball screw with the dust-proof self-lubricating module according to claim 1, wherein the volume of the lubrication groove of the wiper accounts for 9% to 43% of the total volume of the wiper. The ball screw with the dustproof self-lubricating module according to claim 1, wherein the limiting ring member is a C-shaped buckle.