阅读说明：本技术 一种用于热循环试验设备的地面精密可调轨道结构 (Ground precise adjustable track structure for thermal cycle test equipment ) 是由 蔡爱峰 李晓慈 吴静怡 杨光 柳祝勋 于 2021-06-07 设计创作，主要内容包括：本发明公开了一种用于热循环试验设备的地面精密可调轨道结构,包括轨道、连接组件、调节固定机构和地面支撑组件；所述轨道、所述连接组件和所述调节固定机构布置于所述地面支撑组件上；相邻两段所述轨道通过所述连接组件固定连接,并且相邻两段所述轨道之间预先留有Z型伸缩缝；所述连接组件包括第一螺栓组和轨道连接夹板；所述调节固定机构包括轨道横向调节组件、轨道压板、第二螺栓组、第三螺栓组、轨道竖向调节螺栓和轨道固定底板；所述地面支撑组件包括地面承载框架和地面静压室孔板。本发明可在-100℃～150℃的温度范围内使用,固定方式灵活,并可在部件热变形后,轨道依然可拆卸或调整相对位置。(The invention discloses a ground precise adjustable track structure for thermal cycle test equipment, which comprises a track, a connecting assembly, an adjusting and fixing mechanism and a ground supporting assembly, wherein the track is provided with a plurality of connecting rods; the track, the connecting assembly and the adjusting and fixing mechanism are arranged on the ground support assembly; the adjacent two sections of tracks are fixedly connected through the connecting component, and a Z-shaped expansion joint is reserved between the adjacent two sections of tracks; the connecting assembly comprises a first bolt group and a rail connecting clamping plate; the adjusting and fixing mechanism comprises a track transverse adjusting assembly, a track pressing plate, a second bolt group, a third bolt group, a track vertical adjusting bolt and a track fixing bottom plate; the ground support assembly includes a ground bearing frame and a ground plenum aperture plate. The invention can be used in the temperature range of-100 ℃ to 150 ℃, the fixing mode is flexible, and the track can still be detached or the relative position can be adjusted after the thermal deformation of the part.)

1. A ground precise adjustable track structure for thermal cycle test equipment is characterized by comprising a track, a connecting assembly, an adjusting and fixing mechanism and a ground supporting assembly; wherein the content of the first and second substances,

the track, the connecting assembly and the adjusting and fixing mechanism are arranged on the ground support assembly;

the adjacent two sections of tracks are fixedly connected through the connecting component, and a Z-shaped expansion joint is reserved between the adjacent two sections of tracks;

the connecting assembly comprises a first bolt group and a rail connecting clamping plate;

the adjusting and fixing mechanism comprises a track transverse adjusting assembly, a track pressing plate, a second bolt group, a third bolt group, a track vertical adjusting bolt and a track fixing bottom plate;

the track transverse adjusting assembly comprises a transverse adjusting lug seat, a transverse adjusting bolt and a transverse adjusting lug seat fixing bolt;

the ground support assembly comprises a ground bearing frame and a ground static pressure chamber orifice plate;

the ground bearing frame is the foundation of the ground precise adjustable track mechanism and is arranged at the lowest surface, the track fixing bottom plate is laid on the upper surface of the ground bearing frame under the track, the track is laid on the track fixing bottom plate, and the track is fixed on the track fixing bottom plate through the track pressing plate and the third bolt group.

2. The ground precision adjustable track structure for the thermal cycle test equipment as claimed in claim 1, wherein the track fixing bottom plate is installed on the cross beam of the ground bearing frame and fixedly connected by welding.

3. The ground precision adjustable track structure for the thermal cycle test equipment according to claim 1, wherein the bolts of the second bolt group and the bolts of the third bolt group are both installed on the track fixing bottom plate and fixedly connected by welding.

4. The ground precision adjustable track structure for the thermal cycle test equipment according to claim 1, wherein the track pressing plate is perforated at the positions corresponding to the bolts of the second bolt group and the bolts of the third bolt group.

5. The ground precision adjustable track structure for the thermal cycle test equipment according to claim 1, wherein two holes are drilled at both ends of each section of the track, and four holes are drilled at each connecting clamping plate of the track; and the connecting assembly comprises four first bolt sets and two rail connecting clamping plates, and the two rail connecting clamping plates clamp the connecting parts of the two adjacent sections of rails and are then fixedly connected through the four first bolt sets.

6. The ground precision adjustable track structure for the thermal cycle test equipment according to claim 1, wherein the track is an i-steel.

7. The ground precision adjustable track structure for the thermal cycle test equipment as claimed in claim 6, wherein the track vertical adjusting bolt is in threaded connection with the lower wing plate of the track, and the vertical position of the multiple sections of the track can be adjusted by adjusting the track vertical adjusting bolt, so that the horizontal precision of the upper wing plate of the multiple sections of the track is ensured.

8. The ground precision adjustable track structure for the thermal cycle test equipment according to claim 6, wherein the L-shaped pressing surface of the track pressing plate presses on the lower wing plate of the track, the outer side surface of the track pressing plate presses on the nuts of the second bolt group, the height of the outer side surface of the track pressing plate is adjusted by rotating the nuts of the second bolt group, and the track pressing plate is pressed on the track by screwing the nuts of the third bolt group.

9. The ground precision adjustable rail structure for the thermal cycle test equipment according to claim 1, wherein a pair of rail lateral adjustment assemblies are installed at the outer sides of a pair of rail pressing plates, and the straightness of the rail in the horizontal plane is adjusted by the lateral adjustment bolts.

10. The ground precision adjustable track structure for the thermal cycle test equipment according to claim 1, wherein one track is composed of N sections of the tracks, and the ground precision adjustable track structure has two tracks in total; the multiple rows of the track fixing bottom plates are uniformly distributed on the ground bearing frame, so that track installation of various position combinations is convenient to change.

Technical Field

The invention relates to the field of thermal cycle simulation test equipment, in particular to a ground precise adjustable track structure for thermal cycle test equipment.

Background

In the field of aerospace, sufficient ground simulation tests are required to be performed to check the reliability of spacecraft design and components, so that occurrence of spacecraft accidents is avoided; the quality defects of the product material and manufacture are exposed, and an optimization basis is provided for the design and material improvement. The thermal cycle test is one of ground simulation tests, which refers to a test for high and low temperature cycle of a measured part under normal pressure, and the thermal cycle test verification system is mainly used for the normal pressure thermal cycle test of a satellite and the normal pressure thermal cycle test of a large satellite component or subsystem insensitive to vacuum degree.

The thermal cycle test is generally carried out by adopting a high-low temperature test box, and the whole structure of the test box can adapt to the problems of expansion with heat and contraction with cold, deformation stress and the like caused by the change of a large temperature zone with the temperature of-100-150 ℃ in the box. Besides the temperature control device, the test box also comprises a placing rack and a guide rail of the measured piece, and the placing rack and the guide rail are used for placing the measured piece at a proper position in the test box to carry out a thermal cycle test. The guide rail of the existing high-low temperature test box mostly adopts a fixed rail or a limited height adjusting rail, the position of a measured piece in the test box can only be adjusted within a very small range, the accurate positioning of the measured piece cannot be realized, and the moving operation of a series of test objects under the unmanned condition cannot be realized.

In a large-scale thermal cycle simulation test system, higher requirements are provided for the working flexibility of the guide rail, meanwhile, the requirement for accurate positioning of a measured part needs to be met, the size range of the measured part is wide in many times, and the temperature test range cannot be reduced due to the fact that the size range of the measured part is wide. This puts higher demands on the track of the thermal cycle simulation test equipment.

Therefore, those skilled in the art are dedicated to develop a ground-based precisely adjustable track structure for thermal cycle test equipment to meet the requirements of precise positioning of the measured object and various test adjustments.

Disclosure of Invention

In view of the above defects in the prior art, the technical problem to be solved by the present invention is that in the thermal cycle simulation test system, the measured object can be accurately positioned, a series of moving operations can be conveniently realized, and the positioning mode is simple, adjustable and reusable, so that the thermal cycle simulation test of the measured object can be conveniently completed.

In order to achieve the aim, the invention provides a ground precise adjustable track structure for thermal cycle test equipment, which comprises a track, a connecting assembly, an adjusting and fixing mechanism and a ground supporting assembly, wherein the track is provided with a plurality of connecting rods; wherein the track, the connection assembly and the adjustment fixture are arranged on the ground support assembly; the adjacent two sections of tracks are fixedly connected through the connecting component, and a Z-shaped expansion joint is reserved between the adjacent two sections of tracks; the connecting assembly comprises a first bolt group and a rail connecting clamping plate; the adjusting and fixing mechanism comprises a track transverse adjusting assembly, a track pressing plate, a second bolt group, a third bolt group, a track vertical adjusting bolt and a track fixing bottom plate; the track transverse adjusting assembly comprises a transverse adjusting lug seat, a transverse adjusting bolt and a transverse adjusting lug seat fixing bolt; the ground support assembly comprises a ground bearing frame and a ground static pressure chamber orifice plate; the ground bearing frame is the foundation of the ground precise adjustable track mechanism and is arranged at the lowest surface, the track fixing bottom plate is laid on the upper surface of the ground bearing frame under the track, the track is laid on the track fixing bottom plate, and the track is fixed on the track fixing bottom plate through the track pressing plate and the third bolt group.

Furthermore, the track fixing bottom plate is installed on a cross beam of the ground bearing frame and fixedly connected in a welding mode.

Further, the bolts of the second bolt group and the bolts of the third bolt group are both installed on the rail fixing bottom plate and fixedly connected through welding.

Further, the track pressing plate is respectively provided with holes at positions corresponding to the bolts of the second bolt group and the bolts of the third bolt group.

Further, two holes are drilled at two ends of each section of track, and four holes are drilled on each track connecting clamping plate; and the connecting assembly comprises four first bolt sets and two rail connecting clamping plates, and the two rail connecting clamping plates clamp the connecting parts of the two adjacent sections of rails and are then fixedly connected through the four first bolt sets.

Further, the rail is I-shaped steel.

Furthermore, the vertical adjusting bolt of the track is in threaded connection with the lower wing plate of the track, and the vertical adjusting bolt of the track can adjust the vertical position of the track in multiple sections to ensure the horizontal precision of the upper wing plate of the track in multiple sections.

Furthermore, an L-shaped opening pressing surface of the track pressing plate presses on a lower wing plate of the track, the outer side surface of the track pressing plate presses on the nut of the second bolt group, the height of the outer side surface of the track pressing plate is adjusted by rotating the nut of the second bolt group, and the track pressing plate presses the track by screwing the nut of the third bolt group.

Further, a pair of the track transverse adjusting assemblies are arranged on the outer sides of the pair of the track pressing plates, and the straightness of the track on the horizontal plane is adjusted through the transverse adjusting bolts.

Furthermore, one track is formed by N sections of tracks, and the ground precise adjustable track structure has two tracks; the multiple rows of the track fixing bottom plates are uniformly distributed on the ground bearing frame, so that track installation of various position combinations is convenient to change.

Further, the track transverse adjusting assembly is installed on the track fixing base plate, and the transverse adjusting lug seat is fixed through the transverse adjusting lug seat fixing bolt.

Further, the ground static pressure chamber orifice plate is installed on the ground bearing frame and connected through screws.

The ground precise adjustable track structure for the thermal cycle test equipment has the beneficial effects that the ground precise adjustable track structure for the thermal cycle test equipment is provided, a precise motion track can be provided under various test conditions, a measured part is precisely positioned, and the support requirement of a thermal cycle simulation test on a slide rail is met. Different from the traditional fixed track, the positioning mode of the device is freely adjustable, the device can complete thermal cycle test tasks under various sizes, and the adjustment precision is high. And after the thermal deformation of the part, the rail can still be detached or the relative position can be adjusted, so that the real repeated use is realized.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a single track cross-sectional view of a ground precision adjustable track configuration for a thermal cycling test apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a partial side view of a joint between two sections of a single track of a ground precision adjustable track structure for thermal cycle testing equipment according to the present invention;

FIG. 3 is a partial top view of a joint between two sections of a single track of a ground precision adjustable track structure for thermal cycle testing equipment according to the present invention;

FIG. 4 is a top view of a ground precision adjustable track structure for a thermal cycle testing apparatus according to the present invention;

the device comprises a track 1, a track 2, a connecting assembly 3, an adjusting and fixing mechanism 4, a ground supporting assembly 5, a Z-shaped expansion joint 21, a first bolt group 22, a track connecting clamping plate 22, a track transverse adjusting assembly 31, a track pressing plate 32, a second bolt group 33, a third bolt group 34, a track vertical adjusting bolt 35, a track fixing bottom plate 36, a track transverse adjusting lug seat 311, a track transverse adjusting bolt 312, a track transverse adjusting lug seat fixing bolt 313, a ground bearing frame 41 and a ground static pressure chamber pore plate 42.

Detailed Description

The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

The directional terms used in the present invention, such as upper, lower, front, rear, inner, outer, front, back, top and bottom, are only directions in the drawings, and are used for explaining and explaining the present invention, not for limiting the scope of the present invention.

As shown in fig. 1, 2, 3 and 4, a ground precision adjustable track structure for a thermal cycle test device comprises a track 1, a connecting assembly 2, an adjusting and fixing mechanism 3 and a ground support assembly 4; wherein, the track 1, the connecting component 2 and the adjusting and fixing mechanism 3 are arranged on the ground supporting component 4; two adjacent sections of tracks 1 are fixedly connected through a connecting component 2, and a Z-shaped expansion joint 5 is reserved between the two adjacent sections of tracks; the connecting assembly 2 comprises a first bolt group 21 and a track connecting clamping plate 22; the adjusting and fixing mechanism 3 comprises a track transverse adjusting component 31, a track pressing plate 32, a second bolt group 33, a third bolt group 34, a track vertical adjusting bolt 35 and a track fixing bottom plate 36; the track transverse adjusting assembly 31 comprises a transverse adjusting lug 311, a transverse adjusting bolt 312 and a transverse adjusting lug fixing bolt 313; the ground support assembly 4 comprises a ground bearing frame 41 and a ground plenum plate 42; the ground bearing frame 41 is the foundation of the ground precise adjustable track mechanism, is arranged at the lowest part, a track fixing bottom plate 36 is laid on the upper surface of the ground bearing frame 41 right below the track 1, the track 1 is laid on the track fixing bottom plate 36, and the track 1 is fixed on the track fixing bottom plate 36 through a track pressing plate 32 and a third bolt group 34. The ground static pressure chamber orifice plate 42 is mounted on the ground bearing frame 41 and screwed.

The rail fixing bottom plate 36 is installed on the cross beam of the ground bearing frame 41 and fixedly connected by welding. The bolts of the second bolt group 33 and the bolts of the third bolt group 34 are both mounted on the rail fixing base plate 36 and fixedly connected by welding. The rail pressing plate 32 is perforated at positions corresponding to the bolts of the second bolt group 33 and the bolts of the third bolt group 34, respectively. Two holes are drilled at the two ends of each section of track 1, and four holes are drilled on each track connecting clamp plate 22; the group of connecting assemblies 2 comprises four first bolt groups 21 and two rail connecting clamping plates 22, wherein the two rail connecting clamping plates 22 clamp the connecting part of two adjacent sections of rails 1 and then are fixedly connected through the four first bolt groups 21.

The track 1 is I-shaped steel. The vertical adjusting bolt 35 of track adopts threaded connection with track 1's lower pterygoid lamina, through adjusting the vertical adjusting bolt 35 of track, can adjust the vertical position of multistage track 1, guarantees the horizontal precision of multistage track 1's last pterygoid lamina. The L-shaped pressure surface of the rail pressure plate 32 is pressed against the lower wing plate of the rail 1, the outer side surface of the rail pressure plate 32 is pressed against the nuts of the second bolt group 33, the height of the outer side surface of the rail pressure plate 32 is adjusted by rotating the nuts of the second bolt group 33, and the rail pressure plate 32 is pressed against the rail 1 by tightening the nuts of the third bolt group 34. The pair of rail lateral adjustment assemblies 31 are mounted on the outer sides of the pair of rail pressing plates 32, and adjust the straightness of the rail 1 in the horizontal plane by the lateral adjustment bolts 312.

The ground precise adjustable track structure comprises two tracks which are formed by N sections of tracks 1; a plurality of rows of track fixing bottom plates 36 are uniformly distributed on the ground bearing frame 41, so that track installation of various position combinations is convenient to change, and each track is provided with N-1 groups of connecting assemblies 2.

The ground bearing frame 41 is the basis of the ground precise adjustable track structure, the horizontal plane of the ground precise adjustable track structure is a cross beam which is staggered horizontally and vertically, the tracks 1 are arranged on the cross beams in the same direction, the central lines of the two cross beams are on the same vertical plane, a plurality of track fixing bottom plates 36 are arranged at certain intervals, the track fixing bottom plates 36 are connected with the beams below the track fixing bottom plates in a welding mode, the tracks 1 are placed on the track fixing bottom plates 36, two adjacent sections of tracks 1 are connected, two track connecting clamping plates 22 are clamped at web positions at the joint of the tracks 1, bolt holes are aligned, and then bolts of four first bolt groups 21 respectively penetrate through the four holes to be fixedly connected. A Z-shaped expansion joint 5 is reserved before the two adjacent sections of tracks 1 are connected, and the reservation is considered in advance during drilling positioning. Each two adjacent track segments 1 are all connected identically.

The nuts of the second bolt group 33 are sleeved on the bolts of the second bolt group 33 welded on the track fixing bottom plate 36, the bolts are screwed down to proper positions, the track pressing plate 32 is placed, at the moment, two holes of the track pressing plate 32 are respectively sleeved on the bolts of the second bolt group 33 and the third bolt group 34, the nuts of the second bolt group 33 are adjusted, the outer side of the track pressing plate 32 is lifted, and when the L-shaped opening pressing surface of the track pressing plate 32 is pressed on the lower wing plate of the track 1 in an attaching mode, the adjustment of the nuts is stopped. The nuts of the third bolt group 34 are sleeved on the rail pressing plate, and the rail pressing plate 32 is tightly pressed on the rail 1.

The lateral adjustment lug fixing bolt 313 is welded and fixed to the rail fixing base plate 36, and the lateral adjustment lug 311 is fixed to the upper surface of the rail fixing base plate 36 by the bolt. Before tightening the nuts of the third bolt group 34, the lateral position of the rail 1 is adjusted by the lateral adjustment bolt 312.

Before the nuts of the third bolt group 34 are tightened, the vertical positions of the multi-section rails 1 can be adjusted by adjusting the rail vertical adjusting bolts 35, and the horizontal accuracy of the upper wing plates of the multi-section rails 1 is guaranteed.

The third bolt set 34 and the rail vertical adjusting bolt 35 are also provided with spring washers for local cold and hot deformation compensation of the rail 1 in the lateral and vertical positions under thermal cycling conditions. The upper wing plate of the track 1 forms a working surface for thermal cycle test equipment; the hot circulation test equipment can also be provided with return air.

The invention provides a ground precise adjustable track structure for thermal cycle test equipment, which can provide a precise motion track under various test conditions, accurately position a measured part and meet the support requirement of a thermal cycle simulation test on a slide rail.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.