CN212509398U - High-speed low-noise ball screw - Google Patents
High-speed low-noise ball screw Download PDFInfo
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- CN212509398U CN212509398U CN202021161403.1U CN202021161403U CN212509398U CN 212509398 U CN212509398 U CN 212509398U CN 202021161403 U CN202021161403 U CN 202021161403U CN 212509398 U CN212509398 U CN 212509398U
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Abstract
The utility model discloses a high-speed low noise ball, including screw rod, nut and vibration damper, nut spiro union in on the screw rod, the inside installation cavity that is equipped with of nut, vibration damper include a plurality of shell fragments and a plurality of balancing weight, the shell fragment with the balancing weight is located in the installation cavity, the one end of shell fragment with the chamber wall of installation cavity is connected, the other end with the balancing weight is connected, works as during the nut vibration the balancing weight drives the shell fragment produces elastic deformation. The utility model discloses a high-speed low noise ball, the vibration is little, and the noise of production is low.
Description
Technical Field
The utility model relates to a tool machine transmission technical field, in particular to high-speed low noise ball.
Background
The ball screw is a key functional component for realizing transmission of machine tools and other machines, and the overall performance of the ball screw directly determines the overall performance of the machine. In the prior art, the ball screw vibrates violently, and the generated noise is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-speed low noise ball aims at improving prior art, and high-speed low noise ball vibrates acutely and the big technical problem of noise.
In order to achieve the above object, the present invention provides a high-speed low-noise ball screw, including:
a screw;
the nut is screwed on the screw rod, and an installation cavity is formed in the nut; and the number of the first and second groups,
the vibration reduction device comprises a plurality of elastic sheets and a plurality of balancing weights, wherein the elastic sheets and the balancing weights are arranged in the installation cavity, one end of each elastic sheet is connected with the cavity wall of the installation cavity, the other end of each elastic sheet is connected with the balancing weights, and when the nuts vibrate, the balancing weights drive the elastic sheets to generate elastic deformation.
Optionally, the counterweight block is made of metal.
Optionally, silica gel is paved on the surface of the balancing weight.
Optionally, the shape of the weight block is a polyhedron or a sphere.
Optionally, the high-speed low-noise ball screw further includes a ball, a threaded hole for threaded connection of the screw is formed in the nut, the ball is movably disposed in the threaded hole, a hole wall of the threaded hole and a peripheral side wall of the screw are both abutted to the ball and respectively form a first abutting surface and a second abutting surface, and the ball rolls between the first abutting surface and the second abutting surface.
Optionally, a mounting groove is formed in a hole wall of the threaded hole, the mounting groove extends spirally along the depth direction of the threaded hole, the ball is movably mounted in the mounting groove, a groove wall of the mounting groove forms the first abutting surface, and the ball rolls in the mounting groove.
Optionally, a plurality of mounting holes are formed in the hole wall of the screwing hole, the mounting holes are arranged along the circumferential direction of the hole wall of the screwing hole, the ball is arranged in the mounting holes, and the hole wall of each mounting hole forms the first abutting surface.
Optionally, the high-speed low-noise ball screw further comprises a sound-absorbing plate, and the sound-absorbing plate is laid on the wall of the mounting cavity.
The utility model provides an among the technical scheme, through set up vibration damper in the inside installation cavity of nut, vibration damper includes shell fragment and balancing weight, the one end of shell fragment with the chamber wall of installation cavity is connected, the other end with the balancing weight is connected, and the balancing weight also can move because of the influence that receives the vibration in the installation cavity when the nut produces the vibration, and then drives the shell fragment and produces elastic deformation energy consumption, and then the suppression vibration to the noise abatement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a front view of an embodiment of a nut in a high-speed low-noise ball screw according to the present invention;
FIG. 2 is a schematic view of the structure of balls in the high speed low noise ball screw of FIG. 1;
fig. 3 is a top view of a nut in the high speed low noise ball screw of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 101 | |
104 | |
| 102 | |
105 | Ball bearing |
| 103 | |
106 | Screw connection hole |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. Moreover, the technical solutions in the embodiments can be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or can not be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The ball screw is a key functional component for realizing transmission of machine tools and other machines, and the overall performance of the ball screw directly determines the overall performance of the machine. In the prior art, the ball screw vibrates violently, and the generated noise is large.
In view of this, the utility model provides a high-speed low noise ball aims at improving prior art, and high-speed low noise ball vibrates acutely and the big technical problem of noise. Please refer to fig. 1 to fig. 3, which illustrate an embodiment of a high-speed low-noise ball screw according to the present invention.
Referring to fig. 1, the present embodiment provides a high-speed low-noise ball screw including:
a screw;
the nut 101 is screwed on the screw rod, and an installation cavity 102 is formed in the nut 101; and the number of the first and second groups,
the vibration reduction device comprises a plurality of elastic sheets 103 and a plurality of balancing weights 104, wherein the elastic sheets 103 and the balancing weights 104 are arranged in the installation cavity 102, one end of each elastic sheet 103 is connected with the cavity wall of the installation cavity 102, the other end of each elastic sheet is connected with the corresponding balancing weight 104, and the balancing weights 104 drive the elastic sheets 103 to generate elastic deformation when the nuts 101 vibrate.
In the technical scheme that this embodiment provided, through set up vibration damper in the inside installation cavity 102 of nut 101, vibration damper includes a plurality of shell fragments 103 and a plurality of balancing weight 104, balancing weight 104 sets up the central point at installation cavity 102, do not contact with the chamber wall of installation cavity 102 under quiescent condition, the one end of shell fragment 103 is fixed connection with the chamber wall of installation cavity 102, the other end and the balancing weight 104 of shell fragment 103 are connected, be used for supporting balancing weight 104 to vacate and set up in installation cavity 102. In this embodiment, the weight 104 is supported by two elastic sheets 103, the two elastic sheets 103 are respectively disposed on the upper cavity wall and the lower cavity wall, the two elastic sheets 103 extend in the vertical direction, and the weight 104 is arranged in a circle along the circumferential direction of the annular mounting cavity 102. In other embodiments, the weight 104 may be supported by a spring 103. The elastic sheet 103 is made of an elastic material and can be elastically deformed. When the nut 101 vibrates, the weight block 104 in the mounting cavity 102 moves under the influence of the vibration, and then the elastic sheet 103 is driven to generate elastic deformation to consume energy, so that the vibration is suppressed, and the noise is reduced.
Further, in the present embodiment, the weight of the weight block 104 cannot be too light, otherwise the weight block 104 cannot drive the elastic sheet 103 to generate elastic deformation when the nut 101 slightly vibrates, and the vibration cannot be effectively suppressed, thereby reducing the noise. The weight of the weight 104 should not be too heavy, otherwise the weight 104 may collide with the wall of the mounting cavity 102 when the vibration of the nut 101 is a little severe, and the elastic deformation of the elastic sheet 103 is too large to be easily fatigued and broken. Thus, each weight 104 weighs between 6g and 15 g. The weight of the weight 104 is about 10g in this embodiment. The material of the weight member 104 is metal, which is not easily damaged due to proper hardness and density. The metal from which the weight 104 is made includes steel, iron, copper, and the like.
Further, in this embodiment, a surface of the weight member 104 is paved with silica gel. When nut 101 takes place great vibration, balancing weight 104 can with the chamber wall of installation cavity 102 bumps, in order to reduce the impact that the collision produced nut 101, the buffering collision, consequently lays the thick silica gel of one deck on the surface of balancing weight 104, and silica gel can effectual buffering collision, and the weight of silica gel also can not have too many influence to balancing weight 104's weight simultaneously. Obviously, the present design is not limited thereto, and in other embodiments, the same design purpose may be achieved.
Further, in the present embodiment, the shape of the weight 104 is a polyhedron or a sphere.
Further, referring to fig. 2 and 3, in the present embodiment, the high-speed low-noise ball screw further includes a ball 105, a screw hole 106 for screwing the screw is formed in the nut 101, the ball 105 is movably disposed in the screw hole 106, a hole wall of the screw hole 106 and a peripheral sidewall of the screw are both abutted against the ball 105 and respectively form a first abutting surface and a second abutting surface, and the ball 105 rolls between the first abutting surface and the second abutting surface. The balls 105 are designed between the nut 101 and the screw to reduce friction and make the transmission more smooth, thereby reducing vibration due to friction.
Further, referring to fig. 2, in this embodiment, a mounting groove is provided on the hole wall of the screw hole 106, the mounting groove extends spirally along the depth direction of the screw hole 106, the spiral mounting groove is staggered from the internal thread in the screw hole 106, but the spiral direction is the same. The ball 105 is movably installed in the installation groove, the wall of the installation groove forms the first contact surface, the ball 105 rolls in the installation groove, and friction between the circumferential wall of the screw and the wall of the screw hole 106 is reduced.
Referring to fig. 3, the balls 105 may also be installed in installation holes distributed along the circumferential direction of the wall of the screw hole 106, and the installation holes are distributed around the screw hole 106 in a circle at positions where the screw holes 106 are close to the inlet and the outlet. The balls 105 are disposed in the mounting holes and are rollable therein. At this time, the hole wall of the mounting hole constitutes the first contact surface.
It should be noted that the high-speed low-noise ball screw further comprises a sound-absorbing plate, and the sound-absorbing plate is laid on the wall of the mounting cavity. The sound-absorbing board is an aluminum honeycomb perforated sound-absorbing board, and is directly bonded with an aluminum honeycomb core by virtue of a high-quality adhesive to form an aluminum honeycomb sandwich structure, and a layer of sound-absorbing cloth is attached between the honeycomb core and the panel and between the honeycomb core and the back board. Because the honeycomb core in the honeycomb aluminum plate is divided into a plurality of closed cells, air flow is prevented, sound waves are blocked, and the sound absorption coefficient is improved (can reach more than 0.9). In addition, can also carry out different perforation rate designs according to indoor acoustics design, control integrated configuration's sound absorption coefficient in certain within range, both reach the design effect, can rationally control the cost again. The sound absorption cloth is made of sound absorption materials such as high-quality non-woven fabrics. In this embodiment, the sound-absorbing plate is prior art and will not be described in detail herein.
The aforesaid only is the optional embodiment of the utility model discloses a to not consequently restrict the patent scope of the utility model, all be in the utility model discloses a under the utility model conceiving, utilize the equivalent structure transform that the content of the description and the attached drawing was done, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (8)
1. A high-speed low-noise ball screw, comprising:
a screw;
the nut is screwed on the screw rod, and an installation cavity is formed in the nut; and the number of the first and second groups,
the vibration reduction device comprises a plurality of elastic sheets and a plurality of balancing weights, wherein the elastic sheets and the balancing weights are arranged in the installation cavity, one end of each elastic sheet is connected with the cavity wall of the installation cavity, the other end of each elastic sheet is connected with the balancing weights, and when the nuts vibrate, the balancing weights drive the elastic sheets to generate elastic deformation.
2. The high-speed low-noise ball screw according to claim 1, wherein the weight member is made of metal.
3. The high-speed low-noise ball screw according to claim 2, wherein a surface of the weight member is coated with silica gel.
4. The high-speed low-noise ball screw according to claim 3, wherein the weight is shaped as a polyhedron or a sphere.
5. The high-speed low-noise ball screw according to claim 4, wherein the high-speed low-noise ball screw further comprises a ball, the nut is provided with a screwing hole for screwing the screw rod, the ball is movably disposed in the screwing hole, a hole wall of the screwing hole and a peripheral side wall of the screw rod are respectively abutted against the ball and respectively form a first abutting surface and a second abutting surface, and the ball rolls between the first abutting surface and the second abutting surface.
6. The high-speed low-noise ball screw according to claim 5, wherein a mounting groove is provided on a wall of the screw hole, the mounting groove extends spirally in a depth direction of the screw hole, the ball is movably mounted in the mounting groove, a wall of the mounting groove constitutes the first contact surface, and the ball rolls in the mounting groove.
7. The high-speed low-noise ball screw according to claim 5, wherein a plurality of mounting holes are provided on a hole wall of the screwing hole, the mounting holes are arranged along a circumferential direction of the hole wall of the screwing hole, the balls are provided in the mounting holes, and the hole wall of the mounting holes constitutes the first abutting surface.
8. The high-speed low-noise ball screw according to claim 1, further comprising a sound-absorbing plate, wherein the sound-absorbing plate is laid on a wall of the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021161403.1U CN212509398U (en) | 2020-06-19 | 2020-06-19 | High-speed low-noise ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021161403.1U CN212509398U (en) | 2020-06-19 | 2020-06-19 | High-speed low-noise ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212509398U true CN212509398U (en) | 2021-02-09 |
Family
ID=74438387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021161403.1U Active CN212509398U (en) | 2020-06-19 | 2020-06-19 | High-speed low-noise ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212509398U (en) |
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2020
- 2020-06-19 CN CN202021161403.1U patent/CN212509398U/en active Active
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