Disassembling device and method for connecting actuator and load sensor

Abstract

The application provides a dismounting device and method for connecting an actuator and a load sensor, and belongs to the technical field of aircraft structure strength test. The dismounting device comprises a bottom plate, a bottom plate top screw and a roller assembly installed at the corner of the bottom plate, a vertical plate arranged on one side of the bottom plate, a screw sleeve installed in the vertical plate threaded hole, a long screw rod installed in the screw sleeve, a support plate, a clamping plate, and a clamping bolt.

Description

Technical Field

[0001] This application belongs to the field of aircraft structural strength testing, and specifically relates to a disassembly and assembly device for connecting actuators and load sensors. Background Technology

[0002] like Figure 1 The actuator and load sensor connection structure 100 shown is used in aircraft structural strength tests. Many load tests are conducted, most of which are applied using the actuator 101. A load sensor 103 is installed on the piston rod 102 at the loading end of the actuator 101 to measure and control the test load.

[0003] In aircraft structural strength tests, the housings of load sensors 103 mounted on actuators 101 are mostly made of steel. Some load sensors 103 weigh tens or even hundreds of kilograms. Most load sensors 103 are rotatably mounted on the piston rod 102 at the loading end of the actuator via their central threaded hole 105. Disassembling or installing load sensors 103, which weigh tens of kilograms, is extremely difficult for test personnel, especially when they are rotated to the end and detach from the piston rod 102. At this point, the weight of the load sensor 103 suddenly loses its support, making it prone to falling and injuring personnel if supported manually. Furthermore, the electrical sockets 104 of the load sensors 103 are mostly made of plastic. If a load sensor 103 falls, the electrical socket 104 will be severely damaged upon impact, requiring return to the factory for repair. Returning imported load sensors for repair is very expensive and time-consuming. Sometimes, a foam board is placed under the load sensor 103 to protect it from falling. However, the possibility of the load sensor 103 falling off the actuator piston rod 102 when it rotates still exists. In this case, relying on manual support is still quite dangerous for the test personnel and the electrical socket 104 of the load sensor. Summary of the Invention

[0004] The purpose of this application is to provide a disassembly and assembly device and method for connecting an actuator to a load sensor, so as to solve or alleviate at least one of the problems in the prior art.

[0005] The technical solution of this application is: a disassembly and assembly device for connecting an actuator and a load sensor, characterized in that the disassembly and assembly device comprises:

[0006] A base plate, wherein a base plate groove is provided on the base plate;

[0007] Base plate set screws and roller assembly installed at the corner of the base plate;

[0008] A vertical plate is provided on one side of the base plate, and the vertical plate is provided with a threaded hole;

[0009] A threaded sleeve is installed in the threaded hole of the vertical plate, and a long threaded rod is installed inside the threaded sleeve;

[0010] a support plate, a bottom of the support plate is provided with a convex structure matching the bottom plate groove, the convex structure is installed in the bottom plate groove of the bottom plate, an upper side of the support plate is provided with a support surface matching an outer surface of the load sensor, and both sides of the support plate are installed with double-threaded ejector rods;

[0011] a clamping plate, a lower side of the clamping plate is provided with a pressing surface matching the outer surface of the load sensor, and the clamping plate is installed with clamping bolts, the clamping bolts are screwed into the double-threaded ejector rods through both sides of the clamping plate, and the clamping plate is connected and fixed with the support plate.

[0012] Further, the bottom plate groove is a rectangular groove.

[0013] Further, the threaded sleeve and the long screw rod include multiple groups with different diameters or thread structures, and the threaded sleeve and the long screw rod are selected according to the thread hole of the load sensor.

[0014] Further, an outer surface of the double-threaded ejector rod is provided with a hexagonal structure, and the double-threaded ejector rod is screwed by a wrench.

[0015] Further, a lifting ring is arranged on the clamping plate, and the clamping and fixed load sensor is lifted by the lifting ring.

[0016] In addition, the application also provides a dismounting method, which adopts the dismounting device for connecting the actuator and the load sensor as described above, and the dismounting method includes the following processes:

[0017] When the load sensor is separated from the actuator, the dismounting device is moved to a dismounting position of the actuator and the load sensor by the roller assembly, the bottom plate is lifted by adjusting the lifting of the bottom plate by the top wire, and the long screw rod is completely aligned with the thread hole of the load sensor.

[0018] The support plate is arranged in the bottom plate groove of the bottom plate and close to one end of the actuator piston rod, there is no gap between the upper surface of the bottom plate and the lower surface of the support plate, there is a gap between the support surface of the support plate and the outer surface of the load sensor, and the load sensor is installed on the long screw rod by rotating the load sensor.

[0019] When the load sensor is completely assembled on the long screw rod by rotating the load sensor, the support plate is moved to the lower side of the load sensor, the support plate is lifted by rotating the double-threaded ejector rod, the support surface of the support plate is matched with the outer surface of the load sensor, the support plate supports the load sensor, the long screw rod is completely screwed out of the thread hole of the load sensor by rotating the long screw rod, and the separation of the load sensor and the actuator is completed.

[0020] Further, the disassembling method further comprises the following process: when the load sensor is separated from the actuator, the clamping plate is placed on the upper surface of the load sensor, the clamping bolt is screwed into the double-threaded ejector pin through the clamping plate, and the load sensor is clamped, and at this time, the support plate, the clamping plate and the clamping bolt are combined to form a stable clamping of the load sensor.

[0021] Further, a lifting ring is arranged on the clamping plate, the load sensor is lifted away by using a lifting device, and after being moved to a storage position, the support plate, the clamping plate and the clamping bolt form a stable clamping of the load sensor, and the clamp is installed on the load sensor and directly lifted away for next use.

[0022] Further, the disassembling method further comprises the following process: when the load sensor is separated from the actuator, the clamping plate is placed on the upper surface of the load sensor, the clamping bolt is screwed into the double-threaded ejector pin through the clamping plate, and the load sensor is clamped, and at this time, the support plate, the clamping plate and the clamping bolt are combined to form a stable clamping of the load sensor.

[0023] The long screw rod is screwed into the load sensor threaded hole, and then the double-threaded ejector pin is rotated to make the support surface of the support plate away from the outer surface of the load sensor, and the load sensor is in a rotatable state, and at this time, the long screw rod has been screwed into the load sensor threaded hole to form a support of the load sensor.

[0024] The position of the bottom plate is adjusted by the bottom plate top wire and the roller assembly, the load sensor threaded hole is aligned with the actuator piston rod, the load sensor is rotated, the actuator piston rod is screwed into the load sensor threaded hole, and at this time, the actuator piston rod supports the weight of the load sensor.

[0025] The long screw rod is screwed out of the load sensor threaded hole, the position of the load sensor on the actuator piston rod is adjusted, and after the requirement is met, the disassembling device of the actuator and the load sensor is removed, and the installation is completed.

[0026] The disassembling device provided by the application has the following advantages:

[0027] 1) When the piston rod 102 at the loading end of the actuator is disassembled or installed with the load sensor 103, the piston rod and the disassembling device are double-supported before the load sensor 103 and the piston rod 102 are screwed apart, the load sensor 103 and the piston rod 102 have not been separated, the long screw rod 207 of the disassembling device has been screwed into the other end of the load sensor 103 and supports the load sensor 103 at the same time, and then the load sensor 103 and the piston rod 102 are screwed apart, which avoids the risk that the load sensor 103 is rotated and separated from the piston rod 102 of the actuator, loses support and instantly falls, and further avoids the risk of injuring personnel and damaging the electrical socket 104, and greatly improves the safety of disassembling the load sensor of the actuator.

[0028] 2) The support clamp formed by the support plate and the clamping plate has the function of hoisting and placing load sensors, giving it multiple functions such as hoisting, moving, and placing load sensors. This greatly facilitates the installation, transportation, and placement of load sensors and significantly improves the efficiency of movement.

[0029] 3) Both the base plate 201 and the support plate 203 can be freely adjusted in height, making it easier to align and adjust the long screw 207, the load sensor threaded hole 105 and the actuator piston rod, thus improving ease of use;

[0030] 4) For load sensors of the same specification, if the manufacturers are different, the threads of the load sensors may be different. Most requirements can be met by replacing the long screw 207 with a variable diameter one. The larger diameter screw sleeve 206 can meet the requirements of a larger thread diameter than the long screw 207.

[0031] 5) Compared to the rapid assembly and disassembly of hundreds of actuators and load sensors in a large-scale aircraft test, this will greatly improve work efficiency.

[0032] 6) The disassembly and assembly device of this application has a simplified structure, is easy to process, and is easy to use and promote. Attached Figure Description

[0033] To more clearly illustrate the technical solutions provided in this application, the accompanying drawings will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application.

[0034] Figure 1 This is a schematic diagram of the connection structure between the actuator and the load sensor.

[0035] Figure 2 This is an exploded view of the disassembly and assembly device for connecting the actuator and the load sensor in this application.

[0036] Figure 3 This is an enlarged schematic diagram of the double-threaded push rod part in this application.

[0037] Figure 4 This is a schematic diagram of the assembled disassembly and assembly device for connecting the actuator and the load sensor in this application.

[0038] Figure 5 This is a cross-sectional schematic diagram of the disassembly and assembly device for connecting the actuator and the load sensor in this application.

[0039] Figure label:

[0040] 100-Actuator and Load Sensor Connection Structure

[0041] 101-Actuator

[0042] 102-Piston Rod

[0043] 103 - load sensor

[0044] 104 - electrical socket

[0045] 105 - load sensor threaded hole

[0046] 200 - dismounting device

[0047] 201 - base plate

[0048] 202 - base plate slot

[0049] 203 - base plate top screw

[0050] 204 - vertical plate

[0051] 205 - vertical plate threaded hole

[0052] 206 - threaded sleeve

[0053] 207 - long screw rod

[0054] 208 - support plate

[0055] 209 - support surface

[0056] 210 - double-threaded ejector rod

[0057] 211 - roller assembly

[0058] 212 - clamping plate

[0059] 213 - clamping bolt

[0060] 214 - lifting ring DETAILED DESCRIPTION

[0061] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.

[0062] In order to overcome the problems encountered in the dismounting process of the load sensor 103 in the prior art, the present application provides a dismounting device for connecting the actuator and the load sensor.

[0063] As shown in Figures 2 to 5 The dismounting device 200 for connecting the actuator and the load sensor provided by the present application mainly comprises a base plate 201, a base plate top screw 203, a roller assembly 211, a vertical plate 204, a threaded sleeve 206, a long screw rod 207, a support plate 208 and a clamping plate 211.

[0064] The base plate 201 is provided with a base plate slot 202, which is a rectangular slot in this embodiment of the present application;

[0065] The base plate set screws 203 are installed at the four corners of the base plate 201, and the roller assembly 211 is also installed at the corners or edges of the base plate 1.

[0066] The upright plate 204 is mounted on the base plate 201 and is located on the left side of the base plate 201. The upright plate 204 is provided with an upright plate threaded hole 205. The external thread of the threaded sleeve 206 is screwed into the upright plate threaded hole 205 of the upright plate 204, and the long screw 207 is screwed into the internal threaded hole of the threaded sleeve 206.

[0067] The support plate 208 is generally arc-shaped, with a protruding structure at its bottom that adapts to the base plate groove 202. This protruding structure is installed within the base plate groove 202 of the base plate 201. The upper side of the support plate 208 has a support surface 209 that adapts to the outer surface of the load sensor 103. Threaded holes are provided on both sides of the support plate 208, and a double-threaded push rod 210 is screwed into these threaded holes via its external thread. The double-threaded push rod 210 has an internal threaded hole at its center, and its outer surface has a hexagonal structure for wrench tightening.

[0068] The lower side of the clamping plate 211 is provided with a pressing surface that matches the outer surface of the load sensor 103. The clamping plate 211 is set on the load sensor 103. Two clamping bolts 213 are screwed into the internal thread of the double threaded top rod 210 through the through holes on both sides of the clamping plate 212, so as to realize the connection and fixation between the clamping plate 211 and the support plate 208.

[0069] In this application, the long bolt 206 and the threaded sleeve 206 include multiple groups with different diameters or thread structures. For load sensors 103 of the same specification, if the manufacturers are different, the threads of the load sensors may be different. Replacing them with a long bolt 207 with a stepped shaft and a variable diameter can meet most requirements. At the same time, the disassembly and assembly device provided in this application is equipped with a threaded sleeve 206 with a larger diameter, which is to meet the requirement of a larger thread diameter than the existing long bolt 207.

[0070] The roller assembly 211 is mounted on the base plate 201, which allows the disassembly and assembly device 200 to be easily moved to the disassembly and assembly position of the actuator and load sensor. Then, the base plate 201 is raised and lowered by adjusting the base plate set screw 203, so that the long screw 207 is fully aligned with the threaded hole 105 of the load sensor, and the long screw 207 is easily screwed into the threaded hole 105 of the load sensor about halfway (the other half is on the piston rod 102 of the actuator). Then, the load sensor 103 is rotated to gradually disengage it from the piston rod 102 of the actuator 101 until it is fully screwed onto the long screw 107.

[0071] In the initial state of separating the load sensor 103 from the actuator 101, the support plate 208 is set in the bottom plate groove 202 of the bottom plate 201 and close to the one end of the piston rod of the actuator 101, the double thread top rod 210 is screwed out to lift the support plate 208, that is, the upper surface of the bottom plate 201 and the lower surface of the support plate 208 are in close contact without gap, and there is a gap between the support surface 209 of the support plate 208 and the outer surface of the load sensor 103, at this time, the load sensor 103 can be screwed.

[0072] When the load sensor 103 is screwed to be completely assembled on the long screw rod 207, the support plate 208 is moved to the lower side of the load sensor 103, the double thread top rod 210 is rotated to lift the support plate 208, so that the support surface 209 of the support plate 208 and the outer surface of the load sensor 103 are in close contact, and the support plate 208 supports the load sensor 103. At this time, the long screw rod 207 can be completely screwed out of the load sensor threaded hole 105 by screwing the long screw rod 207, at this time, the load sensor 103 is supported on the support plate 208, and the separation of the load sensor 103 and the actuator 101 is completed.

[0073] Optionally, the clamping plate 212 can be placed on the upper surface of the load sensor 103, the clamping bolt 213 is screwed into the inner thread of the double thread top rod 210 and clamps the load sensor 103 by passing through the through hole on both sides of the clamping plate 212, at this time, the support plate 208, the clamping plate 212 and the clamping bolt 213 are combined to form a stable clamping of the load sensor 103. Through the lifting ring 214 provided on the clamping plate 212, the load sensor 103 can be lifted by a crane or other lifting equipment, and moved to the storage position, the support plate 208, the clamping plate 212 and the clamping bolt 213 can form a stable clamp for the load sensor 103, and the clamp can still be installed on the load sensor 103, which can be directly lifted next time, which is extremely convenient.

[0074] When the load sensor 103 is installed on the actuator 101, the combined clamping load sensor 103 is directly hoisted by the support plate 208, the clamping plate 212 and the clamping bolt 213, the load sensor 103 is placed on the dismounting device 200 of the actuator and the load sensor, the clamping plate 212 and the clamping bolt 213 are removed, the long screw rod 207 is screwed into the load sensor threaded hole 105 by about half, the double-threaded ejector rod 210 can adjust the position of the load sensor 103, then the double-threaded ejector rod 210 is rotated to make the support surface 209 of the support plate 208 away from the outer surface of the load sensor 103, and the load sensor 103 is in a rotatable state. At this time, the long screw rod 207 has been screwed into the load sensor threaded hole 105, and the long screw rod 207 supports the load sensor 103. The position of the bottom plate 201 is adjusted by the bottom plate top wire 203 and the roller assembly 211, so that the load sensor threaded hole 105 is aligned with the actuator piston rod, then the load sensor 103 is rotated (or the actuator piston rod 102 is rotated by the threaded positioning hole 106 of the piston rod), so that the piston rod 102 of the actuator 101 is screwed into the load sensor threaded hole 105, at this time the piston rod 102 of the actuator 101 supports the weight of the load sensor 103, then the long screw rod 207 is unscrewed from the load sensor threaded hole 105, the position of the load sensor 103 on the actuator piston rod is adjusted, after meeting the requirements, the dismounting device 200 of the actuator and the load sensor is removed, and the installation is completed.

[0075] The dismounting device provided by the application has the following advantages:

[0076] 1) When the load sensor 103 is dismounted or installed on the piston rod 102 of the loading end of the actuator, the piston rod and the dismounting device are double-supported before the load sensor 103 and the piston rod 102 are screwed away, the load sensor 103 and the piston rod 102 have not been separated, the long screw rod 207 of the dismounting device has been screwed into the other end of the load sensor 103 and supports the load sensor 103 at the same time, then the load sensor 103 and the piston rod 102 are screwed away, which avoids the risk that the load sensor 103 falls instantly when it is rotated away from the piston rod 102 of the actuator and then hits the person and damages the electrical socket 104, and greatly improves the safety of dismounting the load sensor of the actuator.

[0077] 2) The support clamp formed by the support plate and the clamping plate has the functions of hoisting and placing the load sensor, so it also has the multiple functions of hoisting, moving and placing the load sensor, which greatly facilitates the installation, transportation and placement of the load sensor and greatly improves the moving efficiency

[0078] 3) The bottom plate 201 and the support plate 203 can be highly freely adjusted, which makes the centering adjustment of the long screw rod 207, the load sensor threaded hole 105 and the actuator piston rod more convenient, and improves the use convenience;

[0079] 4) Same size load sensor, if the manufacturer is different, the load sensor thread may be different, by replacing the variable diameter long screw 207 can meet most requirements, larger diameter screw 206 can meet the requirements of larger thread diameter than long screw 207;

[0080] 5) Compared with the quick disassembly of several hundred actuators and load sensors in a large test of an aircraft, the work efficiency will be greatly improved;

[0081] 6) The disassembly device of the present application has simplified structure, convenient processing, easy to use and popularize.

[0082] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A disassembly and assembly device for connecting an actuator and a load sensor, characterized in that, The disassembly / assembly device includes: A base plate, wherein a base plate groove is provided on the base plate; Base plate set screws and roller assembly installed at the corner of the base plate; A vertical plate is provided on one side of the base plate, and the vertical plate is provided with a threaded hole; A threaded sleeve is installed in the threaded hole of the vertical plate, and a long threaded rod is installed inside the threaded sleeve; The support plate has a protruding structure at its bottom that is adapted to the groove of the base plate. The protruding structure is installed in the groove of the base plate. The upper side of the support plate has a support surface adapted to the outer surface of the load sensor. Double threaded top rods are installed on both sides of the support plate. The clamping plate has a pressing surface on its lower side that matches the outer surface of the load sensor. The clamping plate is equipped with clamping bolts that pass through both sides of the clamping plate and are screwed into the double-threaded top rod to achieve the connection and fixation between the clamping plate and the support plate.

2. The disassembly and assembly device for connecting the actuator and the load sensor as described in claim 1, characterized in that, The bottom plate groove is a rectangular groove.

3. The disassembly and assembly device for connecting the actuator and the load sensor as described in claim 1, characterized in that, The threaded sleeve and the long screw include multiple groups with different diameters or thread structures, and the threaded sleeve and the long screw are selected according to the threaded hole of the load sensor.

4. The disassembly and assembly device for connecting an actuator and a load sensor as described in claim 1, characterized in that, The outer surface of the double-threaded push rod has a hexagonal structure, which is used to tighten the double-threaded push rod with a wrench.

5. The disassembly and assembly device for connecting an actuator and a load sensor as described in claim 1, characterized in that, The clamping plate is equipped with lifting rings, which are used to hoist the load sensor that is clamped and fixed in place.

6. A method for disassembling and assembling an actuator and a load sensor, as described in any one of claims 1 to 5, characterized in that, The disassembly and assembly method includes the following process: When separating the load sensor from the actuator, the disassembly and assembly device is moved to the disassembly and assembly position of the actuator and the load sensor by the roller assembly. The base plate is adjusted by adjusting the base plate set screw to raise and lower the base plate, so that the long screw can be completely aligned with the threaded hole of the load sensor. The support plate is placed in the groove of the base plate and close to one end of the actuator piston rod. The upper surface of the base plate and the lower surface of the support plate are in close contact without gaps. There is a gap between the support surface of the support plate and the outer surface of the load sensor. The load sensor is installed on the long screw by rotating it. After the load sensor is fully assembled onto the long screw, move the support plate to the lower side of the load sensor, rotate the double-threaded push rod to lift the support plate, so that the support surface of the support plate is in contact with the outer surface of the load sensor, thus supporting the load sensor. At this time, by screwing the long screw, the long screw is completely screwed out of the threaded hole of the load sensor, and the load sensor is supported on the support plate, completing the separation of the load sensor from the actuator.

7. The disassembly and assembly method as described in claim 6, characterized in that, The disassembly and assembly method includes the following steps: After separating the load sensor from the actuator, the clamping plate is placed on the upper surface of the load sensor. The clamping bolt is screwed into the double-threaded top rod through the clamping plate to clamp the load sensor. At this time, the support plate, clamping plate and clamping bolt are combined to form a stable clamping of the load sensor.

8. The disassembly and assembly method as described in claim 7, characterized in that, By setting lifting rings on the clamping plate, the load sensor is lifted away by hoisting equipment and moved to the storage location. After that, the support plate, clamping plate, and clamping bolts form a stable clamping fixture for the load sensor. This fixture is installed on the load sensor and can be lifted away directly when it is used next time.

9. The disassembly and assembly method as described in claim 8, characterized in that, When installing the load sensor onto the actuator, a clamping device consisting of a support plate, a clamping plate, and clamping bolts is hoisted to hold the load sensor. The load sensor is then placed on the actuator and load sensor disassembly and assembly device, and the clamping plate and clamping bolts are removed. Screw the long screw into the threaded hole of the load sensor, and then rotate the double-threaded push rod to make the support surface of the support plate separate from the outer surface of the load sensor. The load sensor is in a rotatable state. At this time, the long screw has been screwed into the threaded hole of the load sensor to form a support for the load sensor. Adjust the position of the base plate by using the base plate set screw and roller assembly to align the threaded hole of the load sensor with the actuator piston rod. Rotate the load sensor to screw the actuator piston rod into the threaded hole of the load sensor. At this time, the actuator piston rod supports the weight of the load sensor. Unscrew the long screw out of the load sensor's threaded hole, adjust the load sensor's position on the actuator piston rod, and once the requirements are met, remove the actuator and load sensor disassembly and assembly device to complete the installation.

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