TWM532003U - Ball screw with cooling channel - Google Patents

Description

Ball screw with cooling runner

This creation is a cooling structure of a linear transmission element, especially a cooling flow passage structure of a ball (roller) screw.

As shown in the first drawings A, B and C, there is a transmission element having a cooling flow passage, comprising: a long shaft (1) which is elongated, and the outer surface of the long shaft (1) is provided with a surface a rolling groove (11); a nut (2) having a through hole (21) through which the long shaft (1) is pierced, the inner wall surface of the hole (21) being provided opposite to the rolling groove (11) a rolling groove (211), the rolling groove (11) and the rolling groove (211) constitute a load path, the load path is accommodating a plurality of rolling elements (X); and the nut (2) has both end faces and a a radial surface, wherein one of the end faces is provided with a plurality of axial direction holes (4) opening toward the other end surface, the axial direction holes (4) are arranged around the perforations, and the radial faces are adjacent to the positions of the end faces a radial hole (3) connected to the axial direction hole (4); the end of the radial direction hole (3) adjacent to the radial surface is closed by a stopper (5) a type in which the end of the axial direction hole (4) is closed by a stopper (5) to be closed, and the radial direction hole (3) and the axial direction hole (4) forming a continuous S-shaped cooling flow channel, the cooling flow channel is filled with a cooling liquid, and the two ends of the cooling flow channel are respectively an outlet and an inlet (R), and the inlet provides cooling liquid into the cooling. a flow passage, and the outlet provides the coolant to flow out of the cooling flow passage.
However, as shown in the first B and C drawings, since the axial center line (4A) of the axial direction hole (4) overlaps with the axial center line (3A) of the radial direction hole (3), a radial direction hole is caused ( 3) The wall thickness (T) of the open end is too thin, so that when the leak stop (5) is locked, the wall thickness (T) is too thin to withstand the circulating pressure of the coolant, resulting in a leak stop (5) Loosen the hole in the radial direction (3), and let the coolant leak light, losing the cooling effect, so there is still a need for improvement and improvement for this problem.

In view of the above problems, the main purpose of the present invention is to develop a cooling flow path which can retain a certain thickness of the cooling flow path so that the leakage preventing member can be stably fixed to the cooling flow path to avoid leakage of the cooling liquid.
In order to achieve the above object, a transmission element having a cooling flow path is provided, which comprises: a long shaft which is elongated, a surface of the long shaft is provided with a rolling groove; and a nut having a The long shaft is pierced, and the inner wall surface of the perforation is provided with a rolling groove opposite to the rolling groove. The rolling groove and the rolling groove form a load path, and the load path accommodates a plurality of rolling bodies; and the screw The cap has two end faces and a radial face, and one of the end faces is provided with a plurality of axial direction holes which are opened toward the other end face, and the axial direction holes are arranged around the perforations, and the radial faces are adjacent to the positions of the end faces. And a radial direction hole that is connected to the axial direction hole; the radial direction hole and the axial direction hole form a continuous S-shaped cooling flow channel, wherein the cooling flow channel is filled with a cooling liquid, and the cooling flow channel is filled with The two ends are respectively an outlet and an inlet, the inlet provides cooling liquid to enter the cooling flow passage, and the outlet provides the cooling liquid to flow out of the cooling flow passage; wherein the closed end of the radial direction hole has a leak stop Piece, the leak stop seals the diameter a directional hole; wherein the closed end of the axial direction hole has a leakage stop, the leakage stop seals the axial direction hole; wherein the axial line of the radial direction hole and the axial line of the axial direction hole Produce a bias.
Preferably, the axial line of the radial direction hole is between the inner surface of the perforation of the nut and the axial line of the axial direction hole.
Preferably, the diameter of the radial direction hole is smaller than the diameter of the axial direction hole.
The creation is offset by the axial line of the radial direction hole and the axial line of the axial direction hole to increase the size thickness between the radial direction hole and the outer edge surface of the nut, that is, to increase the radial direction hole. The wall thickness is such that the stop member is firmly fixed to the radial hole.

Prior art
1‧‧‧ long axis
11‧‧‧ rolling groove
2‧‧‧ nuts
21‧‧‧Perforation
211‧‧‧ rolling groove
3‧‧‧diameter hole
3A‧‧‧Axis line
4‧‧‧Axis direction hole
4A‧‧‧Axis line
5‧‧‧ leaking parts
T‧‧‧ wall thickness
X‧‧‧ rolling elements
R‧‧‧Export or entrance creation
1‧‧‧ long axis
11‧‧‧ rolling groove
2‧‧‧ nuts
21‧‧‧Perforation
211‧‧‧ rolling groove
22‧‧‧ end face
23‧‧‧ Radial surface
3‧‧‧diameter hole
3A‧‧‧Axis line
4‧‧‧Axis direction hole
4A‧‧‧Axis line
5‧‧‧ leaking parts
L‧‧‧ wall thickness
H‧‧‧ bias
X‧‧‧ rolling elements
R‧‧‧Export or entrance

The first A is a cross-sectional view of a prior art transmission element with a cooling runner.
The first B diagram is a cross-sectional view of the cooling flow path of the transmission element of the prior art cooling flow passage.
The first C diagram is a top view of the radial direction of the transmission element of the prior art cooling channel.
The second figure is an exploded view of the system for creating a transmission element with a cooling runner.
The third figure is a combination diagram of the transmission components with cooling channels.
The fourth figure is a cross-sectional view of the transmission element with the cooling runner.
The fifth figure is a cross-sectional view of the cooling flow path for creating a transmission element with a cooling runner.
The sixth figure is a top view of the radial direction hole of the transmission element with the cooling flow channel.

Referring to the second to sixth figures, the present invention relates to a transmission element having a cooling flow passage, comprising: a long shaft (1) which is elongated and has a surface outside the long shaft (1) a rolling groove (11); a nut (2) having a through hole (21) through which the long axis (1) is pierced, the inner wall surface of the hole (21) being provided opposite to the rolling groove (11) a rolling groove (211), the rolling groove (11) and the rolling groove (211) constitute a load path, the load path is accommodating a plurality of rolling bodies (X); and the nut (2) has two end faces ( 22) and a radial surface (23), wherein the end surface (22) is provided with a plurality of axial direction holes (4) opening toward the other end surface, the axial direction holes (4) surrounding the perforations (21) Arranging, and the radial surface (23) is adjacent to the two end faces (22), respectively provided with a radial hole (3) engaging with the axial direction hole (4); the radial direction hole (3) and the shaft The directional hole (4) forms a continuous S-shaped cooling flow channel, the cooling flow channel is filled with a cooling liquid, and the two ends of the cooling flow channel are respectively an outlet (R) An inlet (R) for supplying a coolant into the cooling passage, and an outlet (R) for supplying the coolant to the cooling passage; wherein the closed end of the radial hole has a a leakage preventing member (5) sealing the radial direction hole (3); wherein the closed end of the axial direction hole (4) has a leak stop member (5), the leakage stop The member (5) seals the axial direction hole (4); wherein the axial center line (3A) of the radial direction hole (3) and the axial center line (4A) of the axial direction hole (4) are offset (H) The axis line (3A) of the radial direction hole (3) is between the inner edge surface of the through hole (21) of the nut (2) and the axial line (4A) of the axial direction hole (4) .
The axis line (3A) of the radial direction hole (3) and the axial line (4A) of the axial direction hole (4) are offset (H) to increase the radial direction hole (3) and the nut ( 2) The size thickness between the outer edge faces, that is, the wall thickness (L) of the radial direction hole (3) is increased to allow the stopper (5) to be firmly fixed to the radial direction hole (3).
In view of the above, the "industry availability" of this creation should be unquestionable. In addition, the characteristic techniques revealed in the examples in this case have not been seen in publications before, and have not been disclosed. The use, not only has the fact that the effect is improved as described above, but also has additional functions that cannot be neglected. Therefore, the "novelty" and "progressiveness" of the creation have been in compliance with the patent regulations, and the application for creating a patent is proposed according to law. Please give us a review and grant a patent as soon as possible.
The above description of the embodiments is intended to illustrate the present invention and is not intended to limit the present invention. Therefore, variations of numerical values and substitution of equivalent elements are still within the scope of the present invention.

1‧‧‧ long axis

11‧‧‧ rolling groove

2‧‧‧ nuts

21‧‧‧Perforation

211‧‧‧ rolling groove

22‧‧‧ end face

23‧‧‧ Radial surface

3‧‧‧diameter hole

4‧‧‧Axis direction hole

5‧‧‧ leaking parts

X‧‧‧ rolling elements

R‧‧‧Export or entrance

Claims (3)

A transmission component having a cooling flow passage, comprising: a long shaft having an elongated shape, the outer surface of the long shaft is provided with a rolling groove; and a nut having a perforation for the long shaft to pass through, The inner wall surface of the perforation is provided with a rolling groove opposite to the rolling groove, and the rolling groove and the rolling groove form a load path, and the load path accommodates a plurality of rolling bodies; and the nut has both end faces and a radial direction One of the end faces is provided with a plurality of axial direction holes which are opened toward the other end face, and the axial direction holes are arranged around the perforations, and the radial faces are adjacent to the positions of the end faces, respectively, and the axis direction is respectively a hole connecting the radial direction hole; the radial direction hole and the axial direction hole form a continuous S-shaped cooling flow channel, wherein the cooling flow channel is filled with a cooling liquid, and the two ends of the cooling flow channel are respectively an outlet and an inlet The inlet provides cooling liquid into the cooling flow passage, and the outlet provides the cooling liquid to flow out of the cooling flow passage; wherein the closed end of the radial direction hole has a leak stopping member, and the leakage preventing member is sealed The radial direction hole; wherein the axial direction hole The closed end has a leakage stop, and the leakage stop seals the axial direction hole; wherein the axial line of the radial direction hole and the axial line of the axial direction hole are offset. The transmission element of the cooling flow channel according to claim 1, wherein the axial line of the radial direction hole is between the inner surface of the perforation of the nut and the axial line of the axial direction hole. The transmission element of the cooling flow passage of claim 1, wherein the diameter of the radial direction hole is smaller than the diameter of the axial direction hole.