CN211039399U - Three-dimensional linear rolling guide rail - Google Patents
Three-dimensional linear rolling guide rail Download PDFInfo
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- CN211039399U CN211039399U CN201920382450.XU CN201920382450U CN211039399U CN 211039399 U CN211039399 U CN 211039399U CN 201920382450 U CN201920382450 U CN 201920382450U CN 211039399 U CN211039399 U CN 211039399U
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Abstract
The utility model provides a three-dimensional linear rolling guide rail, which comprises an X-direction slide rail, an XY-direction two-dimensional slide rail, a YZ-direction integrated two-dimensional slide rail and a Z-direction slide rail, wherein the YZ-direction integrated two-dimensional slide rail comprises a Y-axis slide rail and at least one Z-axis slide rail which is fixed with the Y-axis slide rail into a whole, the Z-axis slide rail is connected with a Z-direction slide rail, and the Z-direction slide rail slides along the Z axis; at least one XY-direction two-dimensional sliding seat is connected to the Y-axis sliding rail and slides along the Y axis; the XY-direction two-dimensional sliding seat is connected with an X-direction sliding rail, and the X-direction sliding rail slides along an X axis. The utility model discloses when constituteing the corner limiter, three-dimensional slide rail only links to each other with the last mounting panel of installation optoelectronic equipment, the lower mounting panel that links to each other with the basis, and compact structure has cancelled connecting piece (board) and a large amount of screws that adopt one-dimensional guide rail structure. And the structure rigidity is good, and the corner limit function is stable and reliable.
Description
Technical Field
The utility model relates to a isolator field specifically is a three-dimensional linear rolling guide.
Background
At present, the installation mode of the attitude measurement and control photoelectric equipment such as an inertial navigator, a gyroscope, a radar, an optical platform and the like on a carrier is mainly rigid installation and a small amount of elastic installation.
1 rigid mounting
Coordinate (X) for initial calibration of electronic equipment of the type by rigid mounting mode0，Y0，Z0) And the stability and reliability of the states of the pose parameters (Ѱ X, Ѱ Y and Ѱ Z) are kept better. But the requirements on the environmental adaptability of the electronic equipment are higher, and particularly the requirements on the strong impact resistance and strong vibration resistance of the electronic equipment are higher. Sometimes, even if the electrical property and the structure reinforcement are carried out on the photoelectric composite material, the service requirement cannot be met, and the state that qualified photoelectric products are not available is caused. In this case, the elastic support platform has to be used to isolate the strong impact and vibration.
2 elastic mounting platform
The resilient mounting platform must have the following functions:
(1) carrying out effective vibration impact isolation on the attitude measurement and control photoelectric equipment;
(2) the platform can only have X, Y, Z triaxial free linear displacement, and micro-rotation angle displacement exceeding the control precision requirement is not allowed.
The current commonly used micro-corner elastic supporting platforms are of two types: one is the corner displacement error has "a high accuracy impact isolator" that optoelectronic device compensated, patent application publication No. CN 105020329A. And the other is a six-connecting-rod impact isolator provided in the design of the ship-based laser inertial navigation system impact isolator with corner displacement errors compensated by photoelectric signal equipment.
The mechanical principle of the above two mechanisms is the same and each support rod takes a spring-damped form. Twelve hinge points of the two hinge points are respectively arranged on the upper mounting base surface and the lower mounting base surface.
Because the supporting rod is formed by spring-damping, the upper base and the lower base cannot be kept parallel in the strong impact process, and the corner displacement limiting function is not provided, so that the electronic equipment can lose the target due to the fact that six degrees of freedom all have relative displacement in the impact process, and the upper mounting base and the lower mounting base can be in a static state only under the action of the spring-damping force. At this time, the error of the relative rotation angle displacement (Ѱ X, Ѱ Y, Ѱ Z) of the upper and lower mounting base surfaces is the 'resetting precision' of the mechanism, and the resetting precision given by the former in the patent document is 1 minute; the theoretical dynamic accuracy given in the latter paper is 33 arc seconds. The elastic mounting structure has the following characteristics:
(1) the damping force has a prominent influence on the resetting time and the resetting precision.
(a) The damping force is small, and the reset time is long (more than or equal to 0.5 second);
(b) if the damping force is large, the error that the upper and lower mounting platforms recover to the relevant balance state during resetting is large, the resetting time is short, but the resetting precision is poor.
(2) The eccentricity of the device has an influence on the elastic properties of the elastic support rod.
When the gravity center of the equipment is eccentric on the upper installation surface, the distribution and the adjustment of the rigidity of the springs and the damping force in the six supporting rods are difficult, and the decoupling design of the vibration isolation buffer system is not easy to realize.
(3) Liquid damping is preferred over dry friction damping.
Because the liquid damping force is in direct proportion to the speed variation, the transient speed variation delta V is large and the damping is large when strong impact is caused by adopting the liquid damping. After impact, the speed is low, the damping force is small, the reset time is short, and photoelectric compensation is adopted in the impact and reset processes, so that the directional precision of the scheme is high.
But it must be noted that: the photovoltaic devices mounted on the lower mounting base must be able to withstand a strong impact environment, otherwise the compensation will not be effective.
The reason is that the elastic damping characteristic cannot be optimally designed according to the vibration isolation buffering performance requirement and the resetting function requirement of the three axial directions.
In order to provide a photoelectric device which needs to perform precise angle limiting, a platform consisting of an angle limiter assembly and a vibration isolation buffer is needed. The device can effectively isolate external strong vibration impact and can effectively limit the corner displacement in the vibration impact process and after impact, thereby ensuring the precision positioning precision of the photoelectric equipment.
The precise corner limiter (hereinafter referred to as corner limiter) can be formed by adopting a linear rolling guide rail as a basic component and matching with necessary connecting pieces.
A one-dimensional linear rolling guide (hereinafter referred to as a one-dimensional guide) is mainly composed of a one-dimensional slide rail and a one-dimensional slide carriage, as shown in fig. 1 and 9.
The vertical one-dimensional guide rail is arranged on the upper portion or the lower portion and depends on the magnitude of horizontal and vertical impact acceleration, and when the horizontal impact acceleration is larger than the vertical impact acceleration, the vertical guide rail is arranged on the upper portion, so that the horizontal impact force applied to the vertical guide rail can be reduced; on the contrary, the vertical guide rail is arranged below, so that the vertical impact force of the horizontal guide rail can be reduced. The one-dimensional guide rail corner limiter structure which is arranged on the vertical guide rail and consists of the one-dimensional linear guide rail has the advantages that the one-dimensional guide rail corner limiter structure can be arranged according to the mass m of the photoelectric equipment0And selecting a corresponding one-dimensional sliding seat according to working environments such as vibration impact and the like, and selecting a proper connecting piece according to an allowed installation space.
The disadvantages are that:
1. the processing precision and form and position tolerance of the connecting piece are high;
2. the installation of multilayer screw causes holistic structural rigidity relatively poor, and under strong impact, the spacing precision of corner descends.
A two-dimensional linear guide (hereinafter referred to as a two-dimensional guide) is shown in fig. 2, and is composed of a two-dimensional slide carriage, an X-direction slide rail, and a Y-direction slide rail. Its advantage is that X, Y is integral to the slide carriage, reducing the number of joints between the X-axis and Y-axis slide carriages, and its disadvantage is that additional joints are still required for the Z-axis.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve prior art's problem, provide a three-dimensional linear rolling guide, constitute corner stopper unit, Y axle slide rail only links to each other with the last mounting panel of installation optoelectronic equipment, and Z axle slide links to each other with lower mounting panel, and compact structure has cancelled connecting piece (board) and a large amount of screws that adopt one-dimensional guide rail structure. And the structure rigidity is good, and the corner limit function is stable and reliable.
The utility model comprises an X-direction slide rail, an XY-direction two-dimensional slide seat, a YZ-direction integrated two-dimensional slide rail and a Z-direction slide seat, wherein the YZ-direction integrated two-dimensional slide rail comprises a Y-axis slide rail and at least one Z-axis slide rail fixed with the Y-axis slide rail, the Z-direction slide seat is connected with the Z-direction slide rail, and the Z-direction slide seat slides along the Z-axis; at least one XY-direction two-dimensional sliding seat is connected to the Y-axis sliding rail and slides along the Y axis; the XY-direction two-dimensional sliding seat is connected with an X-direction sliding rail, and the X-direction sliding rail slides along an X axis.
The improved structure is characterized in that a Z-axis slide rail and an XY-direction two-dimensional slide seat are fixed on the Y-axis slide rail to form a T-shaped structure.
The Y-axis slide rail is fixed with two Z-axis slide rails and two XY-direction two-dimensional slide seats to form a Pi-shaped structure. The horizontal impact resistance of the Pi-shaped three-dimensional guide rail in the axial direction is superior to that of the T-shaped three-dimensional guide rail.
In a further improvement, the Z-direction sliding seat is a linear ball bearing seat. The cross section of the sliding rail can be circular, double-V-shaped or spline-shaped.
The utility model has the advantages that: when the corner limiter is formed, the Y-axis slide rail is only connected with an upper mounting plate for mounting the photoelectric equipment, the Z-axis slide seat is connected with a lower mounting plate, the structure is compact, and connecting pieces (plates) adopting a one-dimensional guide rail structure and a large number of screws are eliminated. And the structure rigidity is good, and the corner limit function is stable and reliable.
Drawings
Fig. 1 is a front view of a one-dimensional linear rolling guide.
Fig. 2 is a schematic view of a two-dimensional linear rolling guide.
Fig. 3 is a schematic view of the T-shaped structure of the present invention.
Fig. 4 is a schematic view of the pi-shaped structure of the present invention.
Fig. 5 is a front view of the T-shaped structure of the present invention.
Fig. 6 is a schematic cross-sectional view of a double V-shaped slide rail.
Fig. 7 is a schematic cross-sectional view of a spline-shaped slide rail.
FIG. 8 is a schematic view of a linear ball bearing housing.
Fig. 9 is a one-dimensional linear rolling guide rail axial view.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The structure of the utility model is as shown in fig. 3 and fig. 4, comprising an X-direction slide rail 1, an XY-direction two-dimensional slide carriage 2, a YZ-direction two-dimensional slide rail 3 and a Z-direction slide carriage 4, wherein the YZ-direction two-dimensional slide rail comprises a Y-axis slide rail and at least one Z-axis slide rail fixed with the Y-axis slide rail, the Z-axis slide rail is connected with a Z-direction slide carriage, and the Z-direction slide carriage slides along the Z-axis; at least one XY-direction two-dimensional sliding seat is connected to the Y-axis sliding rail and slides along the Y axis; the XY-direction two-dimensional sliding seat is connected with an X-direction sliding rail, and the X-direction sliding rail slides along an X axis.
The Z-direction sliding seat is a linear ball bearing seat, and is shown in figure 8. The cross section of the sliding rail can be circular, double V-shaped (as shown in figure 6) or spline-shaped (as shown in figure 7).
Example 1
A Z-axis slide rail and an XY-direction two-dimensional slide carriage are fixed on the Y-axis slide rail to form a T-shaped structure as shown in fig. 3, and a front view thereof is shown in fig. 5.
Example 2
Two Z-axis slide rails and two XY-direction two-dimensional slide seats are fixed on the Y-axis slide rail to form a pi-shaped structure shown in figure 4. The horizontal impact resistance of the Pi-shaped three-dimensional guide rail in the axial direction is superior to that of the T-shaped three-dimensional guide rail.
The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a scope of protection.
Claims (5)
1. A three-dimensional linear rolling guide rail is characterized in that: the X-direction slide rail, the XY-direction two-dimensional slide rail, the YZ-direction integrated two-dimensional slide rail and the Z-direction slide rail are included, wherein the YZ-direction integrated two-dimensional slide rail comprises a Y-axis slide rail and at least one Z-axis slide rail fixed on the Y-axis slide rail, the Z-direction slide rail is connected with the Z-direction slide rail, and the Z-direction slide rail slides along the Z axis; at least one XY-direction two-dimensional sliding seat is connected to the Y-axis sliding rail and slides along the Y axis; the XY-direction two-dimensional sliding seat is connected with an X-direction sliding rail, and the X-direction sliding rail slides along an X axis.
2. The three-dimensional linear rolling guide of claim 1, wherein: the YZ integrated two-dimensional slide rail is in a T-shaped two-dimensional slide rail structure formed by rigidly connecting a Y-axis slide rail with a Z-axis slide rail.
3. The three-dimensional linear rolling guide of claim 1, wherein: the YZ integrated two-dimensional slide rail is in a pi type two-dimensional slide rail structure formed by rigidly connecting two Z-axis slide rails with a Y-axis slide rail.
4. The three-dimensional linear rolling guide of claim 1, wherein: the Z-direction sliding seat is a linear ball bearing seat.
5. The three-dimensional linear rolling guide of claim 1, wherein: the cross section of the sliding rail can be circular, double-V-shaped or spline-shaped.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382450.XU CN211039399U (en) | 2019-03-25 | 2019-03-25 | Three-dimensional linear rolling guide rail |
| PCT/SG2020/050151 WO2020197491A1 (en) | 2019-03-25 | 2020-03-20 | Compact precision angular-displacement-limiting impact-resistant vibration-isolating buffering platform for compact optoelectronic equipment |
| US17/439,316 US11965574B2 (en) | 2019-03-25 | 2020-03-20 | Compact precision angular-displacement-limiting impact-resistant vibration-isolating buffering platform for compact optoelectronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382450.XU CN211039399U (en) | 2019-03-25 | 2019-03-25 | Three-dimensional linear rolling guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039399U true CN211039399U (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920382450.XU Active CN211039399U (en) | 2019-03-25 | 2019-03-25 | Three-dimensional linear rolling guide rail |
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| CN (1) | CN211039399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043560A (en) * | 2019-03-25 | 2019-07-23 | 南京捷诺环境技术有限公司 | 3 d-line rolling guide |
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2019
- 2019-03-25 CN CN201920382450.XU patent/CN211039399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043560A (en) * | 2019-03-25 | 2019-07-23 | 南京捷诺环境技术有限公司 | 3 d-line rolling guide |
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