阅读说明：本技术 一种负载连接与解锁能力测试工装及方法 (Load connection and unlocking capability test tool and method ) 是由 施祥玲 徐小明 余爱武 韩维光 皮刚 吕雯龙 沈辉 陆俊 于 2020-05-28 设计创作，主要内容包括：本发明公开了一种负载连接与解锁能力测试工装及方法,工装包括安装组件、盖板、拉杆组件及锁紧螺母；安装组件用于与拉力试验机底座固定并停放被测产品；盖板与安装组件固定安装用于限制产品受力时的运动；拉杆组件用于连接产品与拉力机施力端,实现载荷的施加。测试方法为：将安装组件与拉力试验机底座安装,通过锁紧螺母锁紧；将产品置于拉力组件中,安装盖板；通过锁紧螺母将拉杆组件与拉力试验机施力端固定；被测产品解锁后将拉杆组件的捕获锥头与产品配合锁紧；最后通过拉力机施加预定载荷,拉力机施力端定位移,产品电动解锁,实现产品负载连接与解锁能力测试。本发明工装能有效模拟产品工作的实际工况,实现负载连接与解锁能力验证。(The invention discloses a load connection and unlocking capability test tool and a method, wherein the tool comprises an installation assembly, a cover plate, a pull rod assembly and a locking nut; the mounting assembly is used for fixing the mounting assembly with a base of the tensile testing machine and parking a tested product; the cover plate and the mounting component are fixedly mounted and used for limiting the movement of the product when the product is stressed; the pull rod assembly is used for connecting the product and a force application end of a tensile machine to realize load application. The test method comprises the following steps: mounting the mounting assembly with a base of a tensile testing machine, and locking by a locking nut; placing the product in a tension assembly, and installing a cover plate; fixing the pull rod assembly and the force application end of the tensile testing machine through a locking nut; after the tested product is unlocked, the capturing conical head of the pull rod assembly is matched and locked with the product; and finally, applying a preset load through a tension machine, enabling the force application end of the tension machine to be fixed in displacement, electrically unlocking the product, and realizing the load connection and unlocking capability test of the product. The tool can effectively simulate the actual working condition of the product work and realize the verification of the load connection and the unlocking capacity.)

1. The utility model provides a load is connected and unblock ability test fixture which characterized in that includes: the device comprises a mounting assembly, a cover plate, a pull rod assembly and a locking nut; the mounting assembly is fixed with the tensile testing machine base through a locking nut and used for parking a tested product; the cover plate is fixedly installed with the installation component and used for limiting the movement of the product when the product is stressed; the pull rod assembly is connected with the product and the force application end of the tensile testing machine through the locking nut, and load application is achieved.

2. The load connection and unlocking capability testing tool of claim 1, wherein the mounting assembly is a stainless steel or cast iron weldment.

3. The tool for testing the load connecting and unlocking capability of claim 1, wherein the mounting assembly is formed by welding a connecting rod, a reinforcing rib, a bottom plate, a parking block, a handle and a vertical plate.

4. The load connection and unlocking capability test tool according to claim 1, wherein the pull rod assembly comprises a simulation conical head, a mounting seat, a pressing cover, a disc spring set, a mounting sleeve and an adapter rod.

5. The tool for testing the load connecting and unlocking capability of claim 3, wherein the connecting rod is of a cylindrical rod-shaped structure, and one end of the connecting rod is provided with threads which are matched with threaded holes in the base of the tensile testing machine.

6. The tool for testing the load connecting and unlocking capability of claim 3, wherein the reinforcing ribs, the bottom plate and the vertical plate are made of stainless steel or cast iron plates.

7. The tool for testing the load connecting and unlocking capability of claim 3, wherein the parking blocks are U-shaped structures, at least 3 parking blocks are circumferentially arranged on the base plate, one end of each parking block is provided with a through hole and fixedly connected with the base plate through a screw, and the other end of each parking block is used for parking a tested product.

8. The tool for testing the load connecting and unlocking capability of claim 4, wherein the simulation conical head is connected with the locking hook of the product to be tested in a matched manner, a locking tongue is arranged on the simulation conical head, the locking hook is arranged on the product to be tested, and when a load needs to be applied to the product to be tested, the locking tongue is hooked through the locking hook to realize locking.

9. The load connecting and unlocking capability testing tool according to claim 4, wherein the pressing cover is used for placing the disc spring set and is provided with a threaded hole with the same diameter as that of the screw thread of the adapter rod.

10. The tool for testing the load connecting and unlocking capability of claim 4, wherein the adapter rod is of a cylindrical rod-shaped structure, threads are arranged at two ends of the adapter rod, one end of the adapter rod is matched with a threaded hole in the force application end of the tensile testing machine, and the other end of the adapter rod is matched with a threaded hole in the compression cover.

11. The load connecting and unlocking capability test tool according to claim 4, wherein the disc spring groups are not less than 3, and 2 pieces are stacked into one group for force buffering.

12. The tool for testing the load connecting and unlocking capability of claim 4, wherein the mounting seat is provided with a threaded hole with the same diameter as the simulated cone head thread.

13. A testing method using the load connection and unlocking capability testing tool according to claims 1 to 12, characterized by comprising the following steps:

the method comprises the following steps: mounting the mounting assembly on a base of the tensile testing machine, and locking and fixing the mounting assembly through a locking nut;

step two: placing a tested product in the mounting assembly, mounting a cover plate, and fixing the tested product through a cover plate mounting screw;

step three: mounting the pull rod assembly and a force application end of a tensile machine, and locking and fixing the pull rod assembly and the force application end of the tensile machine through a locking nut;

step four: unlocking the tested product, moving the force application end of a tensile machine downwards, matching the captured conical head of the pull rod assembly with the tested product, and locking the pull rod assembly by the tested product;

step five: controlling the tensile testing machine to gradually apply tensile force to the product through the pull rod assembly until a preset load is kept, and then fixing the tensile testing machine for displacement;

step six: and electrically unlocking the tested product, and after unlocking is finished, driving the pull rod assembly to move upwards by the force application end of the tensile machine, separating the pull rod assembly from the product and finishing load connection and unlocking capability test.

14. A method as claimed in claim 13, wherein the speed of the tensile machine load should not exceed 1 kN/s.

15. The method for testing the connecting and unlocking capability of a load as claimed in claim 13, wherein the pulling force machine is maintained for more than 30 seconds after reaching the predetermined load, and then the fixed displacement keeps the position of the pull rod assembly still.

Technical Field

The invention relates to the field of cabin body butt joint and transposition, in particular to a load connection and unlocking capability test tool and a method.

Background

Because the rocket carrying capacity is limited, the space station must be assembled in the outer space by a plurality of capsule bodies, so the butt joint and transposition technology is one of the key technologies for building the space station in China.

In the butt joint and transposition processes, the mechanism arranged on the cabin body can be rigidly connected with the other cabin body, certain connection precision needs to be ensured during connection, self-locking can be kept after connection, and reliable connection can be ensured in the transposition process; after the transposition work is finished, unlocking can be carried out, and the two cabins can be ensured to be smoothly separated.

Therefore, the load connection and unlocking capability of the product is the key for determining the successful butt joint and transposition of the cabin body, and a test tool and a use method need to be designed for verifying the load connection and unlocking capability of the product.

Disclosure of Invention

The invention aims to provide a load connection and unlocking capability test tool and a load connection and unlocking capability test method, and solves the problem that the load connection and unlocking capability of a product in a butting and indexing mechanism cannot be verified.

In order to achieve the above object, the present invention provides a load connection and unlocking capability testing tool, including: the device comprises a mounting assembly, a cover plate, a pull rod assembly and a locking nut; the mounting assembly is fixed with the tensile testing machine base through a locking nut and used for parking a tested product; the cover plate is fixedly installed with the installation component and used for limiting the movement of the product when the product is stressed; the pull rod assembly is connected with the product and the force application end of the tensile testing machine through the locking nut, and load application is achieved.

The load connecting and unlocking capability testing tool comprises a mounting assembly and a locking assembly, wherein the mounting assembly is a stainless steel or cast iron welding piece.

Above-mentioned load is connected and unblock ability test fixture, wherein, the installation component comprises connecting rod, strengthening rib, bottom plate, the piece of parking, handle and riser welding.

Above-mentioned load is connected and unblock ability test fixture, wherein, pull rod assembly includes simulation conical head, mount pad, compresses tightly lid, dish spring group, installation cover and switching pole.

Above-mentioned load is connected and unblock ability test fixture, wherein, the connecting rod is cylindrical rod-like structure, and one end is provided with the screw thread, cooperates with the screw hole on the tensile test machine base.

Above-mentioned load is connected and unblock ability test fixture, wherein, strengthening rib, bottom plate and riser are stainless steel or cast iron panel.

Above-mentioned load is connected and unblock ability test fixture, wherein, park the piece and be U type structure, circumference arranges on the bottom plate, is no less than 3, and one end is provided with the through-hole, carries out fixed connection through the screw with the bottom plate, and the other end is used for parking by the test product.

The load connection and unlocking capability test tool comprises a simulation conical head, a lock tongue and a lock hook, wherein the simulation conical head is connected with the lock hook of a product to be tested in a matched mode, the lock tongue is arranged on the simulation conical head, the lock hook is arranged on the product to be tested, and the lock tongue is hooked through the lock hook to achieve locking when the load is applied to the product to be tested.

Above-mentioned load is connected and unblock ability test fixture, wherein, compress tightly the lid and be used for placing dish spring group to be provided with the screw hole the same with switching pole thread diameter.

Above-mentioned load is connected and unblock ability test fixture, wherein, the switching pole is cylindrical rod-like structure, and both ends are provided with the screw thread, and one end and tensile test machine application of force serve the screw hole cooperation, and one end covers the screw hole cooperation with compressing tightly.

Above-mentioned load is connected and unblock ability test fixture, wherein, dish spring group is no less than 3 groups, and 2 pieces superpose and become a set for the buffering of power.

The load connecting and unlocking capability testing tool is characterized in that a threaded hole with the same diameter as the simulated cone head thread is formed in the mounting seat.

A load connection and unlocking capability test method comprises the following steps:

the method comprises the following steps: mounting the mounting assembly on a base of the tensile testing machine, and locking and fixing the mounting assembly through a locking nut;

step two: placing a tested product in the mounting assembly, mounting a cover plate, and fixing the tested product through a cover plate mounting screw;

step three: mounting the pull rod assembly and a force application end of a tensile machine, and locking and fixing the pull rod assembly and the force application end of the tensile machine through a locking nut;

step four: unlocking the tested product, moving the force application end of a tensile machine downwards, matching the captured conical head of the pull rod assembly with the tested product, and locking the pull rod assembly by the tested product;

step five: controlling the tensile testing machine to gradually apply tensile force to the product through the pull rod assembly until a preset load is kept, and then fixing the tensile testing machine for displacement;

step six: and electrically unlocking the tested product, and after unlocking is finished, driving the pull rod assembly to move upwards by the force application end of the tensile machine, separating the pull rod assembly from the product and finishing load connection and unlocking capability test.

The load connection and unlocking capability test method is characterized in that the speed of applying the load of the tensile machine should not exceed 1 kN/s.

According to the load connection and unlocking capacity testing method, after the tensile machine reaches the preset load, the holding time is longer than 30s, and then the pull rod assembly is kept in a fixed displacement mode.

Compared with the prior art, the invention has the technical beneficial effects that: the tool is simple in structural form, the test method is simple and convenient to operate, and the technical problem that the load connection and unlocking capacity of a product in the butt joint and indexing mechanism cannot be verified is solved.

Drawings

The invention provides a load connection and unlocking capability test tool and a load connection and unlocking capability test method.

FIG. 1 is a schematic diagram of a load connection and unlocking capability test tool of the present invention;

FIG. 2 is a schematic view of a load connection and unlocking capability test fixture mounting assembly of the present invention;

FIG. 3 is a schematic view of a cover plate of a load connection and unlocking capability test tool of the present invention;

the notation in the figure is:

11-a connecting rod; 12-reinforcing ribs; 13-a base plate; 14-a parking block; 15-a handle; 16-a riser; 2-cover plate; 31-simulating a cone head; 32-a mounting seat; 33-a hold down cap; 34-disc spring group; 35-mounting a sleeve; 36-an adapter rod; and 4, locking the nut.

Detailed Description

A load connection and unlocking capability testing tool and method according to the present invention will be described in further detail with reference to fig. 1 to 3. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, a load connection and unlocking capability test tool includes a mounting assembly 10, a cover plate 2, a pull rod assembly 30 and a lock nut 4. The mounting assembly is composed of a connecting rod 11, a reinforcing rib 12, a bottom plate 13, a parking block 14, a handle 15 and a vertical plate 16 in a welding mode and is used for being fixed with a base of a tensile testing machine and parking a tested product. The cover plate 2 is designed according to the appearance characteristics of the tested product, and the appearance of the cover plate is fixed with the mounting component 10 through screws as shown in fig. 3 in the embodiment, so as to limit the movement of the product when the product is stressed. The pull rod assembly 30 comprises a simulation conical head 31, a mounting seat 32, a pressing cover 33, a disc spring group 34, a mounting sleeve 35 and an adapter rod 36, and is used for connecting a product with a force application end of a tensile machine to realize load application.

Wherein, the connecting rod 11 is a cylindrical rod-shaped structure, and the non-welding end is provided with a thread which is matched with a threaded hole on the base of the tensile testing machine. Bottom plate 2 is stainless steel or cast iron panel, and riser 16 welds in its top, and for guaranteeing frock intensity, 6 are no less than to riser 16. The parking block 14 is of a U-shaped structure, is circumferentially fixed on the base plate 2 through screws, and is not less than 3 blocks and used for parking tested products. Handle 15 is the sheet metal component, and the welding is no less than 2 on riser 16, and the frock transport when being convenient for experimental.

The pull rod assembly 30 is assembled according to the structural form shown in fig. 1, wherein the simulation conical head 31 is connected with the latch hook of the product to be tested in a matching manner, the simulation conical head 31 is provided with a latch bolt, the product to be tested is provided with the latch hook, and when a load is required to be applied to the product to be tested, the latch bolt is hooked through the latch hook to realize locking. Meanwhile, for the structural design of the locking nut 4, the diameter of the adapter rod 36 is designed to be consistent with that of the connecting rod 11, threads are arranged at two ends of the adapter rod, one end of the adapter rod is matched with a threaded hole in the force application end of the tensile testing machine, and the other end of the adapter rod is matched with a threaded hole in the pressing cover 33. The disc spring groups 34 are 3 groups, and 2 pieces are stacked into one group for buffering force.

A method for testing load connection and unlocking capacity comprises the following specific steps:

step 1: the mounting assembly 10 is mounted on a base of a tensile testing machine and is locked and fixed through a locking nut 4;

step 2: placing a tested product in the mounting assembly 10, mounting the cover plate 2, and fixing the tested product by mounting screws through the cover plate 2;

and step 3: installing the pull rod assembly 30 and the force application end of the tensile machine, and locking and fixing the pull rod assembly by a locking nut 4;

and 4, step 4: unlocking the tested product, moving the force application end of the tensile machine downwards, matching the tested product with the capturing conical head 31 of the pull rod assembly 30, and locking the pull rod assembly 30 by the tested product;

and 5: controlling a tensile testing machine to gradually apply tensile force to a product to a preset load through the pull rod assembly 30, wherein the speed of the application of the load of the tensile testing machine does not exceed 1kN/s, the holding time is more than 30s, and then positioning and moving the pull rod assembly 30 to keep the position of the pull rod assembly still;

step 6: and electrically unlocking the tested product, and after the unlocking is finished, driving the pull rod assembly 30 to move upwards by the force application end of the tensile machine, separating the pull rod assembly from the product and finishing the load connection and unlocking capability test.

The invention provides a load connection and unlocking capability test tool and a load connection and unlocking capability test method, the tool is simple in structural form, the test method is simple and convenient to operate, the rigid connection, self-locking maintaining and unlocking capability verification of a product can be realized, and the technical problem that the load connection and unlocking capability of the product in a butt joint and indexing mechanism cannot be verified is solved.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.