An automated device for loading, installing, and measuring the preload of a rigid strap separation mechanism.

CN121521514BActive Publication Date: 2026-08-14BEIJING INST OF ASTRONAUTICAL SYST ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-08-14

AI Technical Summary

Benefits of technology

[0025](1)采用带体受热膨胀后箍紧,降温收缩后产生预紧力的方式进行预紧力加载和安装,有效提高了带体预紧力的均匀性,且可以实现大预紧力的可靠加载;采用加热带包覆的方式进行加热,可以实现大尺度带体的均匀加热和温升的精确控制。

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Abstract

This invention provides an automated device for loading, installing, and measuring the preload of a rigid tape separation mechanism. The device includes a tape pushing unit, a nut tightening unit, an end-pushing unit, a support mechanism, a heating belt, a tape positioning fixture, and a control system. The tape pushing unit supports and radially pushes the tape, ensuring it is flush against the upper and lower end frames. The nut tightening unit automatically tightens the nut. The end-pushing unit pushes the end structure of the tape to flush against the upper and lower end frames. The support mechanism provides elastic support to the nut tightening unit. The heating belt causes the tape to elongate circumferentially due to heat. The tape positioning fixture positions the tape circumferentially. All electrical components are connected to the control system via cables, which controls and measures the data. This device controls heating temperature rise, pushes the tape, tightens the nut, and detects data, ensuring the accuracy and consistency of the rigid tape preload control and improving installation efficiency.
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Description

Technical Field

[0001] This invention belongs to the field of ground installation and testing technology for aerospace separation mechanisms, and specifically relates to an automated device for loading, installing and measuring the preload of rigid tape separation mechanisms. This device can realize functions such as automatic installation of rigid tape separation mechanisms, loading of preload, strain and temperature measurement, and force sensor monitoring. It has the advantages of uniform preload application, high precision in process parameter control, good consistency in the installation process, and simple operation, and solves the problems of automatic installation and precise control of preload of rigid tape separation mechanisms. Background Technology

[0002] The rigid strap separation mechanism is a new generation of linear separation mechanism used for the separation of large payloads from launch vehicles. It features a large diameter, high load-bearing capacity, and low impact. To ensure the uniformity of the rigid strap preload, a method is adopted for loading and installation where the strap expands when heated and then contracts when cooled to generate preload.

[0003] During installation, it is necessary to strictly control installation parameters such as belt temperature rise, clamping time, and tightening torque, and to measure the temperature, strain, and force sensor data of the belt. Strict installation process control is required to ensure the accuracy and consistency of belt preload.

[0004] To simplify installation operations, improve installation efficiency, and ensure consistency in the installation process, there is an urgent need to develop ground installation measurement equipment with automatic heating, automatic installation, and real-time parameter measurement capabilities. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, the inventors conducted intensive research and provided an automated device for loading, installing, and measuring the preload of a rigid strap separation mechanism. This automated device has functions such as controlling heating temperature rise, pushing the strap body, tightening the nut, and data detection. The highly integrated device achieves automated loading of the rigid strap preload, ensuring the accuracy and consistency of the rigid strap preload control and improving installation efficiency.

[0006] The technical solution provided by this invention is as follows:

[0007] Firstly, an automated device for loading, installing, and measuring the preload of a rigid tape separation mechanism is provided. The rigid tape separation mechanism includes an upper frame, a lower frame, a tape body, a capture bracket, an unlocking assembly, a force-measuring washer, and a tightening nut. The upper and lower frames are axially connected. The tape body is a single-opening metal ring structure, with a diameter larger than the outer diameters of the upper and lower frames in its free state. The opening of the tape body has two end structures for connection, each with a connection hole. The unlocking assembly is located at the opening of the tape body, with screws on its left and right sides. The screws pass through the connection holes of the end structures of the tape body and are tightened by the tightening nut to clamp the tape body, achieving axial connection between the upper and lower frames. A force-measuring washer is placed inside the tightening nut to measure the preload of the tape body. Several capture brackets are evenly distributed on the lower frame for mounting the bracket I for connection, fixation, and capture of the tape body after unlocking.

[0008] The automated equipment includes a belt pushing unit, a nut tightening unit, an end pushing unit, a support mechanism, a heating belt, a belt positioning fixture, and a control system.

[0009] The belt pushing unit is installed on the capture bracket to support the belt. After the belt is heated and elongated in the circumferential direction, it pushes the belt radially so that the elongated belt is tightly attached to the upper and lower frames.

[0010] The nut tightening unit and the end push unit are installed on the lower end frame. After the screws on both sides of the unlocking component pass through the connection holes of the belt end structure, the nut tightening unit automatically tightens the nuts.

[0011] After the main structure of the belt body is tightly attached to the upper and lower frames, the end structure of the pusher belt body is tightly attached to the upper and lower frames.

[0012] The support mechanism provides elastic support to the nut tightening unit to resist the bending moment generated when tightening the nut.

[0013] The heating band is wrapped around the outer cylindrical surface of the belt body, and the belt body is heated and elongated in the circumferential direction.

[0014] The belt positioning fixture clamps the belt body at the left and right symmetrical planes to perform circumferential positioning of the belt body and prevent circumferential movement of the belt body during installation.

[0015] The control system is connected to all electrical components via cables, controls the operation of the electrical components, and measures the belt temperature, tightening torque during the tightening of the nut, and the preload on the belt.

[0016] Secondly, a method for loading, installing, and measuring the preload of a rigid strap separation mechanism includes:

[0017] The upper and lower frames are axially connected and the unlocking components are installed. The belt pusher unit supports the belt to the set height.

[0018] The belt is circumferentially positioned by clamping the belt body at the symmetrical plane position using a belt body positioning fixture;

[0019] The heating belt is heated by the control system and the actual temperature of the belt is fed back by the temperature sensor. The belt stretches in the circumferential direction when heated.

[0020] Once the actual temperature of the belt reaches the target value, the control system controls multiple belt pushing units to push the belt sequentially from the belt positioning point to both sides.

[0021] After all the belt pushing units have finished pushing, the end pushing unit pushes the belt end to fit tightly against the upper and lower frames under the automatic control of the control system.

[0022] After the screws on both sides of the unlocking component pass through the connection holes of the belt end structure, the nut tightening unit automatically tightens the nuts; after tightening, the belt body is clamped, and the belt body pushing unit, nut tightening unit and end pushing unit reset and disengage from the belt body;

[0023] The tape body cools and shrinks, generating annular pre-tightening force. The automated equipment is then removed, and the pre-tightening force of the rigid tape separation mechanism is applied.

[0024] An automated device for loading, installing, and measuring the preload of a rigid strap separation mechanism, provided by the present invention, has the following advantages:

[0025] (1) The belt body is tightened after being heated and then shrinks after cooling to generate pre-tightening force for loading and installation, which effectively improves the uniformity of the belt body pre-tightening force and can achieve reliable loading of large pre-tightening force; the heating belt is wrapped for heating, which can achieve uniform heating of large-scale belt body and precise control of temperature rise.

[0026] (2) The use of multiple belt pushing units arranged in a ring direction to push the belt can ensure that the belt is tightly attached to the end frame, which facilitates the quick tightening of the belt end.

[0027] (3) By adding a belt positioning fixture to the symmetrical plane of the belt, the belt is positioned in a circumferential direction, ensuring the positional accuracy of the belt after it is tightened.

[0028] (4) Through automated control programs, the process parameters such as belt body temperature rise, nut tightening torque, and installation time are ensured to have high consistency during installation, and the final preload generated by the belt body is ensured to have high accuracy and consistency. Attached Figure Description

[0029] Figure 1This is a schematic diagram of the structural composition of an automated device for loading, installing, and measuring the preload of a rigid strap separation mechanism according to the present invention;

[0030] Figure 2 This is a schematic diagram of the rigid tape separation mechanism;

[0031] Figure 3 This is a schematic diagram of the cross-section of the rigid tape separation mechanism;

[0032] Figure 4 This is a schematic diagram of the components of the belt-type jacking unit;

[0033] Figure 5 This is a schematic diagram of the nut tightening unit.

[0034] Figure 6 This is a schematic diagram of the end-push unit.

[0035] Figure 7 This is a schematic diagram of the supporting structure;

[0036] Figure 8 This is a schematic diagram of the heating element installation.

[0037] Figure 9 This is a schematic diagram of the components of the belt positioning fixture;

[0038] Figure 10 This is a schematic diagram of the working process of an automated device used for preload loading, installation, and measurement of rigid strap separation mechanism. Detailed Implementation

[0039] The features and advantages of the present invention will become clearer and more apparent from the following detailed description.

[0040] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0041] like Figure 1 As shown, the present invention provides an automated device for loading, installing and measuring the preload of a rigid strap separation mechanism, including a strap pushing unit 1, a nut tightening unit 2, an end pushing unit 3, a support mechanism 4, a heating belt 5, a strap positioning clamp 6 and a control system 7.

[0042] like Figure 2 As shown, the rigid strap separation mechanism includes an upper frame 0-1, a lower frame 0-2, a strap body 0-3, a capture bracket 0-4, an unlocking assembly 0-5, a force-measuring washer 0-6, and a tightening nut 0-7. Figure 3As shown, the upper frame 0-1 and lower frame 0-2 are axially connected. A raised structure is designed on the outer wall of the mating surface of the upper frame 0-1 and lower frame 0-2 to engage with a V-groove on the inner wall of the belt body 0-3. The belt body 0-3 is a single-opening metal ring structure. Its diameter in its free state is slightly larger than the outer diameter of the upper frame 0-1 and lower frame 0-2. The opening of the belt body 0-3 has two end structures for connection, each with a connecting hole. The unlocking component 0-5 is located at the opening of the belt body 0-3, with screws on its left and right sides. The screws pass through the connecting holes of the end structures of the belt body 0-3 and are tightened by the tightening nut 0-7, thus clamping the belt body 0-3 and achieving the axial connection between the upper frame 0-1 and lower frame 0-2. A force-measuring washer 0-6 is placed inside the tightening nut 0-7 to measure the preload of the belt body 0-3. The force-measuring washer 0-6 is connected to the control system 7 via a cable for preload measurement. During unlocking, unlocking component 0-5 operates, allowing the screws on both sides to be freely pulled out, thus unlocking the belt body 0-3. Several capture brackets 0-4 are evenly distributed on the lower frame 0-2, used for mounting bracket I1-4 for connection and fixation, and for capturing the belt body 0-3 after unlocking.

[0043] like Figure 4 As shown, the belt pushing unit 1 includes a housing I1-1, a cylinder I1-2, a roller I1-3, a mounting bracket I1-4, a slider 1-5, and a bracket 1-6. The housing I1-1 provides an installation interface. The mounting bracket I1-4 is connected to the housing I1-1. The belt pushing unit 1 is connected to the capture bracket 0-4 of the rigid belt separation mechanism via the mounting bracket I1-4. The cylinder I1-2 is connected to the housing I1-1. The push rod of the cylinder I1-2 is connected to the roller I1-3. The roller I1-3's rotation axis is perpendicular to the push rod's pushing direction, used to push the belt 0-3. During the pushing process, the cylinder I1-2 of the pushing unit 1 extends and pushes the belt 0-3 radially, pressing it against the upper frame 0-1 and the lower frame 0-2. The roller I1-3 provides circumferential rolling freedom, allowing the belt 0-3 to slide circumferentially during the pushing process. The bracket 1-6 is connected to the box body I1-1, and the bracket 1-6 can be adjusted in the vertical direction. The bracket is equipped with a slider 1-5 with a lubricating function to support the belt body 0-3 and reduce the sliding friction between the belt body 0-3 and the slider 1-5.

[0044] like Figure 5As shown, the nut tightening unit 2 includes a tightening gun 2-1, a transverse cylinder 2-2, a longitudinal guide rail 2-3, a longitudinal cylinder 2-4, a fixed bracket 2-5, and a transverse guide rail 2-6. The fixed bracket 2-5 is radially fixed to the outer wall of the lower frame 0-2. The two longitudinal guide rails 2-3 are respectively fixed to both sides of the fixed bracket 2-5. The two ends of the transverse guide rail 2-6 are connected to the sliders of the two longitudinal guide rails 2-3, allowing the transverse guide rail 2-6 to move longitudinally. The base of the longitudinal cylinder 2-4 is fixed to the fixed bracket 2-5, and its push rod is connected to the transverse guide rail 2-6, enabling it to move longitudinally. The tightening gun 2-1 is connected to the slider of the transverse guide rail 2-6, allowing it to move laterally. The base of the transverse cylinder 2-2 is fixedly connected to the transverse guide rail 2-6, and its push rod is fixedly connected to the tightening gun 2-1, enabling it to move laterally. Through the action of guide rails and cylinders in two directions, the tightening gun 2-1 can move in both longitudinal and transverse directions. The tightening gun 2-1 can automatically tighten nuts 0-7 and control the tightening torque.

[0045] like Figure 6 As shown, the end-pushing unit 3 includes a housing II 3-1, a cylinder II 3-2, a roller II 3-3, and a mounting bracket II 3-4. The housing II 3-1 provides an installation interface. The mounting bracket II 3-4 is connected to the housing II 3-1 and to the lower frame 0-2 of the rigid strap separation mechanism. The cylinder II 3-2 is connected to the housing II 3-1, and its push rod is connected to the roller II 3-3. The roller II 3-3's rotation axis is perpendicular to the push rod's pushing direction. After the main structure of the strap 0-3 is pressed against the upper frame 0-1 and the lower frame 0-2, the cylinder II 3-2 radially pushes the end structure of the strap 0-3 against the upper frame 0-1 and the lower frame 0-2.

[0046] like Figure 7 As shown, the support mechanism 4 includes two connecting plates 4-1, two sets of support springs 4-2, two sets of linear guides 4-3, two adjusting seats 4-4, two support rods 4-5, and a base 4-6. The two support rods 4-5 are fixedly connected to both ends of the base 4-6. The lower end of the adjusting seat 4-4 is fixedly connected to the support rod 4-5. The linear guides 4-3 are fixed on the adjusting seats 4-4, and the adjusting seats 4-4 can adjust their axial height. The two connecting plates 4-1 are respectively fixedly connected to the fixed brackets 2-5 of the nut tightening unit 2. The connecting plates 4-1 are connected to the top of the linear guides 4-3. The support springs 4-2 are sleeved on the guide rods of the linear guides 4-3. The support springs 4-2 on the two sets of linear guides 4-3 are installed in opposite positions. One end provides spring force when compressed, and the other end provides spring force when tensioned. The two ends cooperate to resist the bending moment generated when the tightening gun 2-1 tightens the nut.

[0047] like Figure 8As shown, the heating band 5 is a strip-shaped flexible silicone structure, slightly shorter than the arc length of the belt body 0-3, and has a built-in resistance wire for heating and temperature control. The heating band 5 covers the outer circumference of the belt body 0-3 to heat the belt body 0-3.

[0048] like Figure 9 As shown, the belt positioning fixture 6 is located on the symmetrical plane of belt 0-3 (opposite to the opening of the belt), and is used for clamping and positioning belt 0-3 at the symmetrical plane position. The belt positioning fixture 6 includes a C-frame 6-1, a clamping block 6-2, a positioning block 6-3, and a guide block 6-4. The positioning block 6-3 is fixed to the mounting bracket 1-4 of the pushing unit 1, serving a positioning and guiding function. The guide block 6-4 is fixed to the C-frame 6-1, with belt 0-3 located within the C-shaped recess of the C-frame 6-1. The clamping block 6-2 is placed within the C-shaped recess along the upper edge of belt 0-3, connected to the C-frame 6-1 by screws. By adjusting the size, belt 0-3 is clamped. When pushing the belt, the positioning block 6-3 and guide block 6-4 ensure that the symmetrical plane position of belt 0-3 has only radial movement freedom, preventing circumferential movement of belt 0-3 during installation.

[0049] like Figure 10 As shown, the working process of the automated equipment for loading, installing, and measuring the preload of the rigid strap separation mechanism is as follows:

[0050] ① The diameter of the free state of the belt 0-3 is slightly larger than that of the upper frame 0-1 and the lower frame 0-2.

[0051] ② Place the belt 0-3 on the capture bracket 0-4, axially connect the upper frame 0-1 and the lower frame 0-2, and install the unlocking component 0-5.

[0052] ③ Install the belt pusher unit 1 onto the capture bracket 0-4, adjust the height of the bracket 1-6, and the slider 1-5 lifts the belt 0-3. Adjust the axial height of the belt 0-3 to a suitable position. Clamp the belt 0-3 at the symmetrical plane position using the belt positioning clamp 6 to achieve circumferential positioning of the belt 0-3. Wrap the heating belt 5 around the outer cylindrical surface of the belt 0-3 to ensure a tight fit between the heating belt 5 and the belt 0-3 for good heat transfer efficiency. Install the nut tightening unit 2 and the end pusher unit 3 onto the lower frame 0-2. Connect the electrical equipment to the control system 7 via cables, and connect the support mechanism 4 to the nut tightening unit 2 to provide elastic support.

[0053] ④ The heating belt 5 is heated by the control system 7, and the actual temperature of the belt body 0-3 is fed back by the temperature sensor. The belt body 0-3 elongates in the circumferential direction when heated.

[0054] ⑤ Once the actual temperature of belt 0-3 reaches the target value, the automated program built into the control system 7 controls multiple belt pushing units 1 to push belt 0-3 sequentially from its positioning point to both sides. During the pushing process, the cylinder I1-2 of the pushing unit 1 extends to push belt 0-3 radially, making it fit tightly against the upper frame 0-1 and the lower frame 0-2. The roller I1-3 provides circumferential rolling freedom, allowing belt 0-3 to slide circumferentially during the pushing process.

[0055] ⑥ After all the belt pushing units 1 have finished pushing, under the automatic control of the control system 7, the cylinder II 3-2 of the end pushing unit 3 pushes the end of the belt 0-3 to be tightly against the upper end frame 0-1 and the lower end frame 0-2. During the pushing process of the end pushing unit 3, manual operation is used to ensure that the screws on both sides of the unlocking component 0-5 extend from the connection holes at the end, and the force measuring washer 0-6 is pre-fitted into the screws on both sides of the unlocking component 0-5.

[0056] ⑦ Place the tightening nut 0-7 into the tightening sleeve of the tightening gun 2-1 beforehand. Under program control, the tightening gun 2-1 moves in both longitudinal and transverse directions to ensure that the tightening nut 0-7 in the tightening sleeve is aligned with the screws on both sides of the unlocking component 0-5, and automatically tightens the tightening nut 0-7 to the preset tightening torque. During the tightening process, the tightening torque and the data of the force measuring washer 0-6 are measured in real time through the control system 7. After tightening, the belt body is clamped, and the belt body pushing unit 1, the nut tightening unit 2, and the end pushing unit 3 are reset and disengaged from the belt body 0-3.

[0057] ⑧ The belt body at 0-3 cools and shrinks, generating an annular preload. The preload is measured using force-measuring washers at 0-6. The automated equipment is then removed, completing the application of preload to the rigid strap separation mechanism.

[0058] The present invention has been described in detail above with reference to specific embodiments and exemplary examples; however, these descriptions should not be construed as limiting the present invention. Those skilled in the art will understand that various equivalent substitutions, modifications, or improvements can be made to the technical solutions and embodiments of the present invention without departing from the spirit and scope of the invention, and all such modifications and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims.

[0059] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. An automated device for loading, installing, and measuring the preload of a rigid strap separation mechanism, characterized in that, The rigid strap separation mechanism includes an upper frame (0-1), a lower frame (0-2), a strap body (0-3), a capture bracket (0-4), an unlocking component (0-5), a force measuring washer (0-6), and a tightening nut (0-7); the upper frame (0-1) and the lower frame (0-2) are axially connected; the strap body (0-3) is a single-opening metal ring structure, whose diameter in its free state is larger than the outer diameter of the upper frame (0-1) and the lower frame (0-2), and the opening of the strap body (0-3) has two end structures for connection, and the two end structures are respectively provided with connection holes; the unlocking component (0-5) -5) Located at the opening of the belt body (0-3), there are screws on the left and right sides. The screws pass through the connection holes of the end structure of the belt body (0-3) and are tightened by tightening nuts (0-7) to clamp the belt body (0-3) and realize the axial connection between the upper frame (0-1) and the lower frame (0-2); a force measuring washer (0-6) is placed inside the tightening nut (0-7) to measure the preload of the belt body (0-3); several capture brackets (0-4) are evenly distributed on the lower frame (0-2) to install the connection and fixation of bracket I (1-4) and capture the belt body (0-3) after unlocking; The automated equipment includes a belt pushing unit (1), a nut tightening unit (2), an end pushing unit (3), a support mechanism (4), a heating belt (5), a belt positioning fixture (6), and a control system (7); The belt pushing unit (1) is installed on the capture bracket (0-4) to support the belt (0-3). After the belt (0-3) is heated and elongated in the circumferential direction, it pushes the belt (0-3) radially so that the elongated belt (0-3) is close to the upper frame (0-1) and the lower frame (0-2). The nut tightening unit (2) and the end push unit (3) are installed on the lower end frame (0-2). After the screws on both sides of the unlocking component (0-5) pass through the connection holes of the end structure of the belt body (0-3), the nut tightening unit (2) automatically tightens the nut (0-7). After the main structure of the belt body (0-3) is attached to the upper frame (0-1) and the lower frame (0-2), the end structure of the pusher belt body (0-3) is attached to the upper frame (0-1) and the lower frame (0-2). The support mechanism (4) provides elastic support to the nut tightening unit (2) to resist the bending moment generated when tightening the nut (0-7); The heating band (5) covers the outer cylindrical surface of the belt body (0-3), and the belt body (0-3) is heated and elongated in the circumferential direction by heating; The belt positioning fixture (6) clamps the belt body (0-3) at the symmetrical plane position, implements the circumferential positioning of the belt body (0-3), and prevents the belt body (0-3) from moving around during the installation process; The control system (7) is connected to all electrical components via cables, controls the operation of electrical components, and completes the measurement of belt temperature, tightening torque during tightening of nuts (0-7), and preload on belt (0-3).

2. The automated equipment for loading, installing, and measuring the preload of a rigid strap separation mechanism according to claim 1, characterized in that, The belt pusher unit (1) includes a box body I (1-1), a cylinder I (1-2), a roller I (1-3), a mounting bracket I (1-4), a slider (1-5), and a bracket (1-6); Box I (1-1) provides an installation interface. Mounting bracket I (1-4) is connected to box I (1-1). Belt push unit (1) is connected to capture bracket (0-4) of rigid wrapping separation mechanism through mounting bracket I (1-4). Cylinder I (1-2) is connected to box I (1-1). The push rod of cylinder I (1-2) is connected to roller I (1-3). The rotating shaft of roller I (1-3) is perpendicular to the push rod's pushing direction and is used to push the belt (0-3). The bracket (1-6) is connected to the box body I (1-1), and the bracket (1-6) can be adjusted in the vertical direction. The slider (1-5) is installed on the bracket to support the belt body (0-3).

3. The automated equipment for loading, installing, and measuring the preload of a rigid strap separation mechanism according to claim 1, characterized in that, The nut tightening unit (2) includes a tightening gun (2-1), a transverse cylinder (2-2), a longitudinal guide rail (2-3), a longitudinal cylinder (2-4), a fixed bracket (2-5), and a transverse guide rail (2-6). The fixed bracket (2-5) is radially fixed to the outer wall of the lower end frame (0-2). The two longitudinal guide rails (2-3) are respectively fixed on both sides of the fixed bracket (2-5). The two ends of the transverse guide rail (2-6) are connected to the sliders of the two longitudinal guide rails (2-3). The transverse guide rail (2-6) moves along the longitudinal direction. The base of the cylinder (2-4) is fixed on the fixed bracket (2-5), and the push rod is connected to the transverse guide rail (2-6), pushing the transverse guide rail (2-6) to move longitudinally; the tightening gun (2-1) is connected to the slider of the transverse guide rail (2-6) and moves laterally; the base of the transverse cylinder (2-2) is fixed to the transverse guide rail (2-6), and the push rod is fixed to the tightening gun (2-1), pushing the tightening gun (2-1) to move laterally; the tightening gun (2-1) performs automatic tightening of the tightening nut (0-7) and controls the tightening torque.

4. The automated equipment for loading, installing, and measuring the preload of a rigid strap separation mechanism according to claim 1, characterized in that, The end-push unit (3) includes a housing II (3-1), a cylinder II (3-2), a roller II (3-3), and a mounting bracket II (3-4); Box II (3-1) is used to provide an installation interface. Mounting bracket II (3-4) is connected to box II (3-1). Mounting bracket II (3-4) is connected to the lower frame (0-2) of the rigid strap separation mechanism. The body of cylinder II (3-2) is connected to box II (3-1). The push rod of cylinder II (3-2) is connected to roller II (3-3). The rotating shaft of roller II (3-3) is perpendicular to the pushing direction of the push rod. After the main structure of the strap (0-3) is close to the upper frame (0-1) and the lower frame (0-2), cylinder II (3-2) is used to push the end structure of the strap (0-3) radially to be close to the upper frame (0-1) and the lower frame (0-2).

5. The automated equipment for loading, installing, and measuring the preload of a rigid strap separation mechanism according to claim 1, characterized in that, The support mechanism (4) includes two connecting plates (4-1), two sets of support springs (4-2), two sets of linear guides (4-3), two adjusting seats (4-4), two support rods (4-5), and a base (4-6); the two support rods (4-5) are fixedly connected to both ends of the base (4-6), the lower end of the adjusting seat (4-4) is fixedly connected to the support rods (4-5), the linear guides (4-3) are fixed on the adjusting seat (4-4), and the adjusting seat (4-4) can adjust the axial height; Each connecting plate (4-1) is fixedly connected to the fixed bracket (2-5) of the nut tightening unit (2). The connecting plate (4-1) is connected to the top of the linear guide (4-3). The support spring (4-2) is sleeved on the guide rod of the linear guide (4-3). The support springs (4-2) on the two sets of linear guides (4-3) are installed in opposite positions. One end is used to provide spring force when compressed, and the other end is used to provide spring force when stretched. The two ends cooperate to resist the bending moment generated when the tightening gun (2-1) tightens the nut.

6. The automated equipment for loading, installing, and measuring the preload of a rigid strap separation mechanism according to claim 1, characterized in that, The heating band (5) is a strip-shaped flexible silicone structure, with a length slightly shorter than the arc length of the band body (0-3). The heating band (5) covers the outer circular surface of the band body (0-3) to heat the band body (0-3).

7. The automated equipment for loading, installing, and measuring the preload of a rigid strap separation mechanism according to claim 1, characterized in that, The belt positioning fixture (6) is located on the left and right symmetrical planes of the belt (0-3) and is used for clamping and positioning the belt (0-3) at the symmetrical planes. The belt positioning fixture (6) includes a C-frame (6-1), a clamping block (6-2), a positioning block (6-3), and a guide block (6-4). The positioning block (6-3) is fixed on the mounting bracket (1-4) of the pushing unit (1). The guide block (6-4) is fixed on the C-frame (6-1). -3) Located in the C-shaped recess of the C-frame (6-1), the clamping block (6-2) is placed on the upper edge of the belt (0-3) inside the C-shaped recess and connected to the C-frame (6-1) by screws. The belt (0-3) is clamped by adjusting the size. When pushing the belt, under the guidance of the positioning block (6-3) and the guide block (6-4), the symmetrical plane of the belt (0-3) has only the degree of freedom to move radially, preventing the belt (0-3) from moving around in the circumference during the installation process.

8. A method for loading, installing, and measuring the preload of a rigid strap separation mechanism, characterized in that, The automated equipment for loading, installing, and measuring the preload of a rigid strap separation mechanism, as described in any one of claims 1 to 7, comprises the following steps: Axially connect the upper frame (0-1) and the lower frame (0-2) and install the unlocking component (0-5). The belt pusher unit (1) supports the belt (0-3) to the set height. The belt body (0-3) is circumferentially positioned by clamping the belt body (0-3) at the symmetrical plane position using the belt body positioning fixture (6); The heating belt (5) is heated by the control system (7), and the actual temperature of the belt body (0-3) is fed back by the temperature sensor. The belt body (0-3) is heated and elongated in the circumferential direction. When the actual temperature of the belt (0-3) reaches the target value, the control system (7) controls multiple belt pushing units (1) to push the belt (0-3) from the positioning point of the belt (0-3) to both sides in sequence; After all the belt push units (1) have finished pushing, the control system (7) automatically controls the lower end push unit (3) to push the end of the belt (0-3) to be close to the upper end frame (0-1) and the lower end frame (0-2); After the screws on both sides of the unlocking component (0-5) pass through the connecting holes of the end structure of the belt body (0-3), the nut tightening unit (2) automatically tightens the nut (0-7); after tightening, the belt body is clamped, and the belt body pushing unit (1), the nut tightening unit (2) and the end pushing unit (3) are reset and disengaged from the belt body (0-3); The belt (0-3) cools and shrinks, generating an annular pre-tightening force. The magnitude of the annular pre-tightening force is measured by the force measuring washer (0-6). The automated equipment is then removed, and the pre-tightening force of the rigid belt separation mechanism is applied.

Citation Information

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