TWI411736B - Linear device lubrication device - Google Patents

Abstract

A lubricating device of a linear element is configured on a linear element which includes a guiding member and a moving member. The lubricating device is configured on the moving member. The lubricating device includes a housing configured on the moving member, in which the housing has a guiding slot, and a first opening is formed in the guiding slot of the housing. An accommodating part is configured in the guiding slot, and a friction part extends toward the guiding member from the accommodating part. An external force source provides the accommodating part an external force toward the guiding member in order to move the friction part toward the first opening along the guiding slot to contact the guiding member, in which when the guiding member and the moving member move relatively, friction is generated by the friction part pushing against the guiding element, such that the friction part is shortened due to friction. Lubricating grease is configured between the accommodating part and the guiding member, and pushed by the accommodating part to contact the guiding member.

Description

Lubrication device for linear components

The invention relates to a lubricating device, and in particular to a lubricating device for a linear element.

The so-called linear element comprises a linear drive screw and a linear slide, which utilizes a guide member and a moving member, and the movable member is movably disposed on the guide member and guided along the guide. Pieces of movement. However, during the actuation of the linear element, the guiding member and the moving member move relative to each other to generate mutual frictional resistance and wear. At this time, if there is no continuous proper lubrication between the guiding member and the moving member, after the lubricant is exhausted, not only a high frictional friction is generated, but also between the guiding member and the moving member. The operation is also not smooth, and the wear of the guide member and the moving member is increased, resulting in the service life of the linear component not meeting the needs of the user.

In order to achieve a continuous lubrication between the guiding member and the moving member, the relevant lubricating device is designed to achieve the effect of continuously providing lubrication of the guiding member and the moving member. For example, U.S. Patent No. 4,023,648, the disclosure of which is incorporated herein incorporated by reference in its entirety in its entirety in its entirety in the in the in the in the in in in in in in in in in in in in in in in in in in in in in However, the above design needs to consider the airtightness problem and the subsequent processing of the produced gas, which is complicated in design and high in production cost.

There is also a lubricating device, such as the US Patent No. 6,216,821, which uses a lubricating polymer material in continuous contact with a guide member to produce a lubricating effect. However, the oil-containing polymer material is not only difficult to obtain but also uses lubricating oil as a lubricant. It will increase the environmental limiting factors when using oil-containing polymer materials, and it cannot be applied to environments with high cleanliness requirements.

There is also a lubricating device as shown in U.S. Patent No. 6,619,148, which utilizes an oil-absorbing wool felt to continuously apply lubricating oil to the guide member to lubricate the guide member and the moving member to continuously produce a lubricating effect, but because Wool felt can only be used as a lubricant, so oil-absorbing wool felt can not be used in environments with high cleanliness requirements.

The main object of the present invention is to provide a lubricating device for a linear component, which has fewer environmental limiting factors when applied, and can continuously produce lubrication in an environment with high cleanliness requirements, and requires airtightness in production. design.

In order to achieve the foregoing object, a lubricating device for a linear component according to the present invention is provided in a linear component having a guiding member and a moving member, the moving member being movably disposed on The guiding member, and the moving member is guided to move along the guiding member, the lubricating device is detachably disposed on the moving member, the lubricating device comprises: a housing that is matched with the guiding member Removably disposed on the moving member, the housing has a guiding groove, and the guiding groove forms a first opening on the housing toward the moving member; a receiving member is cooperatively disposed on the guiding In the slot, the receiving member extends toward the guiding member with a friction portion of a predetermined length; an external force source applies an external force of the receiving member toward the guiding member, so that the friction portion faces along the guiding slot The first opening moves to contact the guiding member, and when the guiding member and the moving member move relative to each other, the friction portion abuts against the guiding member to generate friction, so that the friction portion is shortened due to frictional wear; And a grease disposed between the receiving member and the guiding member The outer member by receiving a first pushed toward the opening movement of the contact member guide.

Thereby, the lubricating device of the linear element provided by the present invention can be used in a clean environment with the use of grease, and it is not necessary to consider the airtightness in the production.

In order to explain in detail the technical features of the present invention, one of the following preferred embodiments will be described with reference to the drawings, wherein:

As shown in the first to second figures, a lubricating device for a linear component according to a first preferred embodiment of the present invention is provided in a linear member 80 having a guiding member 81 and a movement. The moving member 82 is movably disposed on the guiding member 81, and the moving member 82 is guided to move along the guiding member 81. The lubricating device is detachably disposed on the moving member 82. The lubricating device comprises: a casing 10, a receiving member 20, a grease 40 and an external force source 30.

The housing 10 is detachably provided to the moving member 82 in cooperation with the guide member 81. The housing 10 has a guiding slot 11 for forming a first opening 12 in the housing 10 toward the guiding member 81. It should be noted that in the embodiment, the housing 10 has a cylindrical shape, and in fact may be a square. A column, a semi-cylindrical column, a triangular column, a hexagonal column or the like can be used as the casing in the present embodiment as long as it is an object projected in a columnar shape.

The receiving member 20 is disposed in the guiding groove 11 and movable along the guiding groove 11. The receiving member 20 extends toward the guiding member 81 by a friction portion 21 having a predetermined length. The friction portion 21 is made of a soft material such that the friction portion 21 causes an effect of shortening the friction portion 21 due to friction with the object. The soft material in this embodiment is Teflon (polytetrafluoroethylene), which has the characteristics of heat resistance, low temperature resistance, corrosion resistance, non-adhesiveness, self-lubricity, low friction coefficient, and good fat affinity. characteristic. In fact, as long as the material having the aforementioned characteristics can be used as the soft material in the present embodiment.

The external force source 30 applies an external force of the accommodating member 20 toward the guiding member 81, so that the friction portion 21 moves along the guiding groove 11 toward the first opening 12 to contact the guiding member 81. When the guiding member 81 and the moving member 82 move relative to each other, the friction portion 21 abuts against the guiding member 81 to generate friction, and the friction portion 21 is shortened due to friction loss.

The grease 40 is disposed between the receiving member 20 and the guiding member 81, and is displaced by the receiving member 20 toward the first opening 12 to contact the guiding member 81.

Referring to the second and third figures, the embodiment of the first preferred embodiment will be described next.

When the guiding member 81 and the moving member 82 have not been moved relative to each other, the external force source 30 applies the receiving member 20 to move the friction portion 21 toward the first opening 12 to abut against the guiding member 81. And push the grease 40 The first opening 12 is also moved to contact the guide 81.

After the guiding member 81 of the linear member 80 starts to operate, the friction portion 21 is shortened due to the friction against the guiding member 81, and the grease 40 is gradually worn out due to the application to the guiding member 81. . When the guide member 81 is applied by the grease 40, it will contact the moving member 82, and the grease 40 will produce a lubricating effect.

Since the external force source 30 continuously pushes the accommodating member 20 toward the guiding member 81, the friction portion 21 is continuously shortened, and the grease 40 is moved to keep in contact with the guiding member 20. The member 81 continues to produce the effect of lubricating the guide member 81.

As shown in the fourth figure, it should be noted that although the number of the guiding slots 11 is one in the embodiment, the number of the guiding slots 11 may be two, and the number of the first openings 12 may also be two.

In addition, it is further considered from the above that if the user wants to control the wear rate of the grease 40, it can be achieved in the following manner:

1. Changing the magnitude of the force applied by the external force source 30: since the external force source 30 applies an external force to the receiving member 20, when the biasing force is large, the friction of the friction portion 21 against the guiding member 81 is strengthened. The rate at which the friction portion 21 is shortened is accelerated; conversely, when the biasing force is small, the friction of the friction portion 21 against the guide member is weakened, and the rate at which the friction portion 21 is shortened is slowed down. The user can control the loss rate of the grease 40 (the amount of wear of the grease 40 per unit time) by controlling the magnitude of the force applied by the external force source 30, thereby achieving continuous supply of the guiding member 81 and the moving member 82. Proper lubrication.

2. Designing the soft material of the friction portion 21 to control the friction portion 21 Loss rate: if the force applied by the force source 30 is constant, the friction portion 21 can be made by designing a soft material, and the rate of shortening the friction portion 21 can be controlled, thereby controlling the loss rate of the grease 40. .

As shown in the fifth to sixth embodiments, a second preferred embodiment of the present invention is described, which is different from the first preferred embodiment in that the receiving member 20 is formed on the side of the friction portion 21 to cooperate with the guiding portion. A recess 11 is formed in the slot 11 and a receiving portion 22 is formed between the friction portion 21 and the blocking portion 22 . In the preferred embodiment, the number of the blocking portions 22 is two. In fact, the number of the stopping portions 22 may also be one, but the guiding groove 11 also needs to be changed with the receiving member 20 at this time. The grease 40 is disposed in the accommodating space 23 and contacts the guide member 81. The grease 40 is thus restricted in the accommodating space 23, and when the accommodating member 20 pushes the grease 40, the moving direction of the grease 40 is controlled. The operation mode of the second preferred embodiment is the same as that of the first preferred embodiment, and details are not described herein.

As shown in the seventh to ninth embodiments, the third preferred embodiment of the present invention is different from the second preferred embodiment in that the guiding slot 11 extends through the housing 10 and is opposite to the first opening 12 A second opening 13 is formed in the casing 10. In addition, a cover 50 is coupled to the housing 10 and covers the second opening 13. The external force source 30 is an elastic body, and is disposed in the guiding groove 11 in the receiving member 20 and the cover body 50. The two ends of the external force source 30 are respectively placed against the receiving member 20 and the cover body 50, thereby applying force to The receiving member 20 is provided.

Please refer to the eighth and tenth embodiments. In the preferred embodiment, the external force source may be a spring or a spring piece, one of which.

In addition, in the above preferred embodiment, if the guiding member 81 is a screw, the moving member 82 is a nut, and the linear transmission transmission element 80 combined with the guiding member 81 and the moving member 82 is The linear drive screw set, the guide 81 has a thread 811, and the thread 811 has a crest 812 against which the friction portion 11 abuts.

Similarly, as shown in the eleventh and twelfth drawings, if the guiding member 81 is a slide rail, the moving member 82 is a slider, and the guiding member 81 and the moving member 82 are combined. The linear drive transmission element 80 is a linear slide set.

According to the description of the above preferred embodiment, the lubricating device for the linear element provided by the present invention can be used in a highly clean environment by using grease.

The part of the lubricating device is disposed on the moving member 82 with the guiding member 81, and the grease 40 is coupled to the receiving member 20, and the receiving member 20 is placed on the receiving member 20 The guide groove 11 is continuously urged by the external force source 30 such that the friction portion 21 continues to abut the guide member 81, that is, the basic arrangement of the present invention is completed. From the above, it is understood that the production process of the present invention is simple, and since there is no gas storage involved, it is not necessary to consider the airtightness problem, and it is possible to achieve the object of the invention to be achieved by the present invention.

10. . . case

11. . . Guide slot

12. . . First opening

13. . . Second opening

20. . . Container

twenty one. . . Friction part

twenty two. . . Stop

twenty three. . . Housing space

30. . . External force source

40. . . grease

50. . . Cover

80. . . Linear component

81. . . Guide

811. . . Screw

812. . . Crown

82. . . Moving parts

The first drawing is a perspective view of a first preferred embodiment of the present invention;

2 is a schematic cross-sectional view showing a first preferred embodiment of the present invention, showing a section taken along line 2-2 of the first figure;

The third drawing is a schematic cross-sectional view of a first preferred embodiment of the present invention;

Figure 4 is a schematic view showing the operation of the first preferred embodiment of the present invention, showing the case where the number of guiding slots is two, in the first preferred embodiment;

Figure 5 is a schematic cross-sectional view showing a second preferred embodiment of the present invention;

Figure 6 is a cross-sectional view showing a second preferred embodiment of the present invention, showing the case where the number of guiding grooves is two, and the second preferred embodiment;

Figure 7 is a perspective view of a third preferred embodiment of the present invention, showing that the linear drive transmission component is a linear drive screw set;

Figure 8 is a cross-sectional view showing a third preferred embodiment of the present invention, showing that the external force source is a spring;

Figure 9 is a cross-sectional view showing a third preferred embodiment of the present invention;

Figure 10 is a cross-sectional view showing a third preferred embodiment of the present invention, showing that the external force source is a shrapnel;

11 is a perspective view of a fourth preferred embodiment of the present invention, showing that the linear drive transmission component is a linear slide set;

Fig. 12 is a schematic cross-sectional view showing a fourth preferred embodiment of the present invention, showing a section taken along line 12-12 of Fig. 11.

10. . . case

11. . . Guide slot

12. . . First opening

20. . . Container

twenty one. . . Friction part

30. . . External force source

40. . . grease

80. . . Linear component

81. . . Guide

82. . . Moving parts

Claims (7)

A lubricating device for a linear component is provided on a linear component having a guiding member and a moving member, the moving member is movably disposed on the guiding member, and the moving member is guided by the guiding edge The lubricating device is detachably disposed on the moving member, and the lubricating device comprises: a housing detachably disposed on the moving member, the housing having a guiding groove, the guiding groove forms a first opening on the housing toward the moving member; a receiving member is cooperatively disposed in the guiding groove, and the receiving member extends toward the guiding member a friction portion having a predetermined length; an external force source, applying an external force of the receiving member toward the guiding member, so that the friction portion moves along the guiding slot toward the first opening to contact the guiding member, When the guiding member and the moving member move relative to each other, the friction portion abuts against the guiding member to generate friction, so that the friction portion is shortened due to friction loss; and a grease is disposed on the receiving member and Between the guiding members, the receiving member is pushed and displaced toward the first opening to contact Guide. A lubricating device for a linear element according to claim 1, wherein the friction portion is made of a soft material such that the friction portion causes an effect of shortening the friction portion due to friction with the object. The lubricating device of the linear component of claim 1, wherein: the receiving member forms a stop portion of the guiding member on a side of the friction portion, and the receiving member is also in the friction An accommodating space is formed between the portion and the stopping portion; the grease is disposed in the accommodating space and contacts the guiding member. The lubricating device of the linear component of claim 1, wherein the guiding groove extends through the casing, and a second opening is formed on the casing relative to the first opening; The housing is combined with the second opening; the external force source is an elastic body disposed in the guiding groove, and the two ends are respectively opposite to the cover body and the receiving member. A lubricating device for a linear component according to claim 4, wherein the external force source is a spring or a spring. The lubricating device for a linear component according to claim 1, wherein: the guiding member is a screw, the moving member is a nut, and the guiding member and the moving member are combined into a linear transmission transmission component. It is a linear drive screw set, and the guide has a thread having a crest that abuts against the crest. The lubricating device for a linear component according to claim 1, wherein: the guiding member is a sliding rail, and the moving member is a slider, and the guiding member and the moving member are combined into a linear transmission transmission component. It is a linear slide group.