Method for measuring locking depth of expandable heat radiator

Abstract

The invention discloses a method for measuring the locking depth of an expandable heat radiator. The method comprises the following steps: preparing a telescopic gauge; the telescopic gauge is held by a hand to measure the distance from the hinge locking column to the hinge measurement reference surface after the expandable heat radiator is expanded, and the vernier caliper is used to obtain a locking depth value. According to the method for measuring the locking depth of the expandable heat radiator, locking depth measurement is achieved based on the self-made telescopic gauge, the method is not affected by a narrow space, and the method has the advantages of being high in measurement efficiency and precision and visual in measurement result and is suitable for rapid measurement of the locking depth of an expansion test of the expandable heat radiator.

Description

Technical Field

[0001] The present invention belongs to the technical field of precise assembly and detection of spatially deployable mechanisms, and in particular relates to a method for measuring the locking depth of a deployable thermal radiator. Background Art

[0002] The lock depth of satellite space subsystems, such as thermal radiators and solar panels, is a crucial indicator of their deployment in space. It impacts their deployment stiffness, mechanical performance, and the effectiveness of their deployment indicator resistors. Failure to meet these requirements directly reduces the product's deployment lock stiffness, significantly impacting on-orbit attitude control and deployment reliability. During ground-based satellite development, the lock depth of deployable thermal radiators is a key indicator of the success of simulated deployment tests.

[0003] At present, the solar wing assembly and deployment tests use the tail end of the vernier caliper main scale to measure the distance from the solar wing hinge locking column to the hinge measurement reference plane. However, the deployable thermal radiator locking column and reference plane are located on the inside of the hinge structure. Due to the narrow space, inspectors cannot use calipers and other measuring tools to measure the locking depth. Summary of the Invention

[0004] The technology of the present invention solves the problem: it overcomes the shortcomings of the existing technology and provides a method for measuring the locking depth of a deployable thermal radiator. The method realizes the locking depth measurement based on a homemade telescopic gauge, is not affected by narrow space, has the characteristics of high measurement efficiency and accuracy, and intuitive measurement results. It is suitable for the rapid measurement of the locking depth of the deployment test of the deployable thermal radiator.

[0005] In order to solve the above technical problems, the present invention discloses a method for measuring the locking depth of a deployable thermal radiator, comprising:

[0006] Prepare telescopic gauge;

[0007] Use a handheld telescopic gauge to measure the distance from the hinge locking column to the hinge measurement reference plane after the deployable radiator is deployed, and use a vernier caliper to obtain the locking depth value.

[0008] In the above-mentioned method for measuring the locking depth of an expandable heat radiator, the telescopic gauge comprises: a circular probe, a flat probe, an upper sleeve, a first spring, a pressure plate, a lower sleeve, a top shaft, a locking head, and a second spring;

[0009] The upper sleeve and the lower sleeve are installed vertically to form a T-shaped assembly;

[0010] The circular probe, the first spring, the pressure plate, the second spring and the flat probe are sequentially arranged in the cavity of the upper sleeve to form a measuring unit;

[0011] The top shaft is arranged in the cavity of the lower shaft sleeve and cooperates with the locking head to form a locking unit.

[0012] In the above-mentioned method for measuring the locking depth of the deployable heat radiator, one end of the top shaft is a groove, and the other end is connected to the locking head.

[0013] In the above-mentioned method for measuring the locking depth of a deployable heat radiator, the pressing plate includes: a first large end and a second large end at both ends, and a protrusion at the center;

[0014] The first large end is located in the cavity of the circular probe and is connected to the top surface of the cavity of the circular probe through a first spring;

[0015] The second large end is located in the cavity of the flat probe and is connected to the top surface of the cavity of the flat probe through a second spring;

[0016] The protrusion is located in the groove of the top shaft.

[0017] In the above-mentioned method for measuring the locking depth of a deployable heat radiator, a telescopic gauge is held to measure the distance from the hinge locking post to the hinge measurement reference plane after the deployable heat radiator is deployed, and a vernier caliper is used to obtain the locking depth value, including:

[0018] After the deployable radiator is unfolded, extend the telescopic gauge into the gap between the radiator hinge and the star body, so that the circular probe fits the hinge measurement reference surface and the flat probe fits the hinge locking column, and tighten the locking head at the same time;

[0019] Withdraw the telescopic gauge;

[0020] Use a vernier caliper to measure the distance from the end face of the circular probe of the telescopic gauge to the end face of the flat probe, which is the locking depth value L.

[0021] In the above-mentioned method for measuring the locking depth of an expandable radiator, when the telescopic gauge is extended into the gap between the hinge and the body of the radiator, the lower sleeve portion of the telescopic gauge is held.

[0022] In the above-mentioned method for measuring the locking depth of the expandable radiator, when using a vernier caliper to measure the distance from the circular probe end face to the flat probe end face of the telescopic gauge, the upper and lower sleeve parts of the telescopic gauge are held.

[0023] In the above-mentioned method for measuring the locking depth of the expandable thermal radiator, when using a vernier caliper to measure the distance from the end face of the circular probe of the telescopic gauge to the end face of the flat probe, avoid the blade of the outer measuring jaws of the vernier caliper, and use the flat surface of the outer measuring jaws to respectively fit the end face of the circular probe and the end face of the flat probe to measure the distance from the end face of the circular probe of the telescopic gauge to the end face of the flat probe.

[0024] The present invention has the following advantages:

[0025] (1) The present invention discloses a method for measuring the locking depth of an expandable heat radiator. A self-made telescopic gauge is used in combination with a vernier caliper to measure the locking depth of the expandable heat radiator after expansion. This method can solve the problem of measuring tool interference in narrow spaces and ensure measurement accuracy.

[0026] (2) The present invention discloses a method for measuring the locking depth of an expandable thermal radiator, which uses a self-made telescopic gauge to obtain an unmeasurable object, effectively solving the problem of hands and measuring tools being unable to enter a narrow space when measuring.

[0027] (3) The present invention discloses a method for measuring the locking depth of an expandable thermal radiator. The two ends of the telescopic gauge are processed into a round head and a flat head respectively, which effectively solves the problems of fitting the measured reference surface and aligning the measuring point with the hinge locking column, thereby ensuring the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a telescopic gauge in an embodiment of the present invention;

[0029] Figure 2 This is a diagram of the measurement principle of a telescopic gauge in an embodiment of the present invention;

[0030] Figure 3 This is a measurement principle diagram of a vernier caliper in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments disclosed in the present invention will be described in further detail below with reference to the accompanying drawings.

[0032] In this embodiment, the method for measuring the locking depth of the deployable thermal radiator includes:

[0033] Step 1: Prepare the telescopic gauge.

[0034] In this embodiment, if Figure 1As shown, the telescopic gauge includes: a circular probe 1, a flat probe 2, an upper sleeve 3, a first spring 4, a pressure plate 5, a lower sleeve 6, a top shaft 7, a locking head 8, and a second spring 9. The upper sleeve 3 and the lower sleeve 6 are mounted perpendicularly to form a T-shaped assembly. The circular probe 1, the first spring 4, the pressure plate 5, the second spring 9, and the flat probe 2 are sequentially positioned within the cavity of the upper sleeve 3, forming a measuring unit. The top shaft 7 is positioned within the cavity of the lower sleeve 6 and cooperates with the locking head 8 to form a locking unit. One end of the top shaft 7 is recessed, and the other end is connected to the locking head 8. The pressure plate 5 includes a first large end 51 and a second large end 52 at either end, as well as a protrusion 53 in the center. The first large end 51 is positioned within the cavity of the circular probe 1 and connected to the top surface of the cavity via the first spring 4. The second large end 52 is positioned within the cavity of the flat probe 2 and connected to the top surface of the cavity via the second spring 9. The protrusion 53 is positioned within the recess of the top shaft 7.

[0035] Preferably, the circular probe 1 is used to fit with the hinge measurement reference surface when measuring the locking depth, and the flat probe 2 is used to fit with the hinge locking column when measuring the locking depth; the upper sleeve 3 forms a piston with the circular probe 1 and the flat probe 2, which better ensures that the measurement at both ends conforms to Abbe's law; the first spring 4 and the second spring 9 are used to ensure that the circular probe 1 and the flat probe 2 are naturally fitted with a reasonable measuring force during measurement; the pressure plate 5 is used to solidify the relationship between the circular probe 1 and the flat probe 2 after the locking head 8 is tightened; the lower sleeve 6 serves as a sleeve of the top shaft 7, and at the same time forms a fastening relationship with the top shaft 7 through a thread; the locking head 8 and the top shaft 7 are processed as one piece, and when the locking head 8 is tightened, the top shaft 7 causes the pressure plate 5 to press the circular probe 1 and the flat probe 2.

[0036] Step 2: Use a telescopic gauge to measure the distance from the hinge locking column to the hinge measurement reference plane after the deployable heat radiator is deployed, and use a vernier caliper to obtain the locking depth value.

[0037] In this embodiment, after the deployable heat radiator is deployed, hold the lower sleeve 6 of the telescopic gauge and extend the telescopic gauge into the gap between the hinge of the heat radiator and the star body (simulated wall), so that the circular probe 1 is aligned with the hinge measurement reference surface 9 and the flat probe 2 is aligned with the hinge locking column 10, and tighten the locking head 8 at the same time. Figure 2 As shown; withdraw the telescopic gauge; hold the upper sleeve 3 and lower sleeve 6 of the telescopic gauge, and use a vernier caliper to measure the distance from the end face of the circular probe 1 to the end face of the flat probe 2 of the telescopic gauge at this time, that is, the locking depth value L. Figure 3 As shown, when using a vernier caliper to measure the distance from the end face of the circular probe 1 to the end face of the flat probe 2 of the telescopic gauge at this time, avoid the outer measuring jaw edge 11 of the vernier caliper and use the outer measuring jaw flat surface 12 to respectively fit the end face of the circular probe 1 and the end face of the flat probe 2 to measure the distance from the end face of the circular probe 1 to the end face of the flat probe 2 of the telescopic gauge at this time.

[0038] Although the present invention has been disclosed above in terms of preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solutions of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention.

[0039] The contents not described in detail in the specification of the present invention belong to the common knowledge of professionals in this field.

Claims

1. A method for measuring the locking depth of a deployable thermal radiator, characterized in that: include: Prepare telescopic gauge; Use a handheld telescopic gauge to measure the distance from the hinge locking column to the hinge measurement reference plane after the deployable radiator is deployed, and use a vernier caliper to obtain the locking depth value.

2. The method for measuring the locking depth of a deployable thermal radiator according to claim 1, wherein: A telescopic gauge comprises: a circular probe (1), a flat probe (2), an upper shaft sleeve (3), a first spring (4), a pressure plate (5), a lower shaft sleeve (6), a top shaft (7), a locking head (8) and a second spring (9); The upper shaft sleeve (3) and the lower shaft sleeve (6) are installed vertically to form a T-shaped assembly; The circular probe (1), the first spring (4), the pressure plate (5), the second spring (9) and the flat probe (2) are sequentially arranged in the cavity of the upper sleeve (3) to form a measuring unit; The top shaft (7) is arranged in the cavity of the lower shaft sleeve (6) and cooperates with the locking head (8) to form a locking unit.

3. The method for measuring the locking depth of a deployable thermal radiator according to claim 2, wherein: One end of the top shaft (7) is a groove, and the other end is connected to the locking head (8).

4. The method for measuring the locking depth of a deployable thermal radiator according to claim 3, wherein: The pressing plate (5) comprises: a first large end (51) and a second large end (52) at both ends, and a protrusion (53) at the center; The first large end (51) is located in the cavity of the circular probe (1) and is connected to the top surface of the cavity of the circular probe (1) through a first spring (4); The second large end (52) is located in the cavity of the flat probe (2) and is connected to the top surface of the cavity of the flat probe (2) through a second spring (9); The protrusion (53) is located in the groove of the top shaft (7).

5. The method for measuring the locking depth of a deployable thermal radiator according to claim 2, wherein: Use a handheld telescopic gauge to measure the distance from the hinge locking post to the hinge measurement reference surface after the deployable radiator is deployed, and use a vernier caliper to obtain the locking depth value, including: After the deployable heat radiator is deployed, extend the telescopic gauge into the gap between the hinge of the heat radiator and the star body, so that the circular probe (1) fits in with the hinge measurement reference surface (9), and the flat probe (2) fits in with the hinge locking column (10), and tighten the locking head (8) at the same time; Withdraw the telescopic gauge; The distance between the end face of the circular probe (1) and the end face of the flat probe (2) of the telescopic gauge at this time is measured using a vernier caliper, that is, the locking depth value L.

6. The method for measuring the locking depth of a deployable thermal radiator according to claim 5, characterized in that: When extending the telescopic gauge into the gap between the hinge of the radiator and the star body, hold the lower shaft sleeve (6) of the telescopic gauge.

7. The method for measuring the locking depth of a deployable thermal radiator according to claim 5, characterized in that: When using a vernier caliper to measure the distance between the end face of the circular probe (1) and the end face of the flat probe (2) of the telescopic gauge, the upper shaft sleeve (3) and the lower shaft sleeve (6) of the telescopic gauge are held by hand.

8. The method for measuring the locking depth of a deployable thermal radiator according to claim 3, wherein: When using a vernier caliper to measure the distance between the end face of the circular probe (1) of the telescopic gauge and the end face of the flat probe (2), the outer measuring jaw edge (11) of the vernier caliper is avoided, and the outer measuring jaw flat surface (12) is respectively fitted to the end face of the circular probe (1) and the end face of the flat probe (2) to measure the distance between the end face of the circular probe (1) of the telescopic gauge and the end face of the flat probe (2).

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