A cylinder piston rod limiting and output force measuring device

Abstract

The utility model discloses a kind of actuating cylinder piston rod limiting and output force measuring device, it is related to actuating cylinder measurement technical field, including substrate, actuating cylinder mounting frame, actuating cylinder mounting frame is in substrate top surface and its top is actuating cylinder installation part;Pull positioning force measuring mechanism, pull positioning force measuring mechanism is in substrate top surface and corresponding actuating cylinder mounting frame one side;Pull positioning force measuring mechanism includes sliding alignment frame and the pull positioning force measuring assembly of setting on sliding alignment frame;Sliding alignment frame can be slid along parallel substrate top surface and along vertical pull positioning force measuring mechanism and the opposite direction of actuating cylinder mounting frame sliding displacement, to drive pull positioning force measuring assembly movement, so that the pull connection end of pull positioning force measuring assembly coaxial corresponding installation on the piston rod telescopic end of actuating cylinder of actuating cylinder installation part.The utility model can be suitable for double-cavity actuating cylinder performance detection, clamping once can realize the detection of different piston rod of double-cavity actuating cylinder, to improve actuating cylinder test and maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of actuator cylinder measurement technology, and in particular to an actuator cylinder piston rod limiting and output force measuring device. Background Technology

[0002] In the field of aviation maintenance, actuators are common actuation accessories, widely used in the hydraulic, pneumatic, and flight control systems of aviation equipment. A certain type of aviation equipment uses a new type of dual-chamber actuator. After maintenance, the performance of the piston rod under different extension lengths and the output force during extension need to be tested. If the actuator's performance and output force values ​​are unqualified, it may prevent the actuator from performing its intended function. Therefore, after actuator maintenance, the extension length of the piston rod needs to be limited and its output force tested. If it fails, the actuator needs to be re-maintained. Because the dual-chamber actuator has two parallel piston rods, when using traditional testing fixtures, after testing one piston rod, it is necessary to re-clamp and adjust the installation position of the dual-chamber actuator to test the other piston rod. This operation is inconvenient and has low testing efficiency.

[0003] Therefore, how to provide a piston rod limiting and output force measuring device for actuators that can be applied to the performance testing of dual-chamber actuators and can achieve the testing of different piston rods of dual-chamber actuators in a single clamping, thereby improving the testing and maintenance efficiency of actuators, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention proposes an actuator piston rod limiting and output force measuring device, which aims to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a device for limiting and measuring the output force of an actuator piston rod, including: substrate, An actuator mounting bracket is mounted on the top surface of the base plate, and its top is an actuator mounting portion. A traction positioning and force measuring mechanism is installed on the top surface of the substrate and on the side corresponding to the actuator cylinder mounting frame. The traction positioning and force measuring mechanism includes a sliding alignment frame and a traction positioning and force measuring component disposed on the sliding alignment frame. The sliding alignment frame can slide and shift along a direction parallel to the top surface of the substrate and perpendicular to the direction opposite to the traction positioning and force measuring mechanism and the actuator cylinder mounting frame, thereby driving the traction positioning and force measuring component to move so that the traction connection end of the traction positioning and force measuring component is coaxially corresponding to the piston rod extension end of the actuator cylinder installed on the actuator cylinder mounting part.

[0006] This utility model discloses a piston rod limiting and output force measuring device for actuated cylinders, applicable to piston rod performance testing of dual-chamber actuated cylinders. Since the dual-chamber actuated cylinder has two parallel piston rods, during use, the actuated cylinder to be tested is mounted on the actuated cylinder mounting part at the top of the actuated cylinder mounting frame; the extension and retraction directions of the two piston rods are both along the direction opposite to the pull-positioning force measuring mechanism and the actuated cylinder mounting frame; the position of the sliding alignment frame is slidably adjusted so that the pull-connecting end of the pull-positioning force measuring component is coaxially aligned and connected to the extension and retraction end of one of the piston rods for testing. The pull-positioning force measuring component can pull one of the piston rods of the actuated cylinder out of a preset length and then position it, and can measure the output force of the piston rod of the actuated cylinder when the piston rod extends to the preset length; after the test is completed, the pull-connecting end is disconnected from the extension and retraction end of one of the piston rods, and the position of the sliding alignment frame is slidably adjusted so that the pull-connecting end is coaxially aligned and connected to the extension and retraction end of the other piston rod for testing again. This invention is applicable to the performance testing of dual-chamber actuators. It eliminates the need for repeated disassembly and reassembly of the dual-chamber actuators and enables the testing of different piston rods of the dual-chamber actuators without re-clamping, thereby improving the testing and maintenance efficiency of the new dual-chamber actuators.

[0007] As a further improvement to the above technical solution, the actuator mounting bracket is installed on one side of the top surface of the substrate along the length direction; a sliding groove is provided on the other side of the top surface of the substrate along the width direction of the substrate; the bottom of the sliding alignment frame is slidably connected in the sliding groove, and the traction positioning force measuring component is installed on the top of the sliding alignment frame.

[0008] The beneficial effects of the above technical solution are: the slide groove acts as a sliding guide for the sliding alignment frame, thereby improving the sliding displacement accuracy of the sliding alignment frame.

[0009] As a further improvement to the above technical solution, the traction positioning force measuring mechanism also includes a sliding adjustment mechanism; the sliding adjustment mechanism is installed on the top surface of the substrate and located to the side of the sliding alignment frame in the sliding direction; the driving end of the sliding adjustment mechanism is connected to the sliding alignment frame to drive it to slide and shift in the slide groove.

[0010] The beneficial effects of the above technical solution are: the sliding position of the sliding alignment frame is adjusted by driving the sliding adjustment mechanism, which makes the operation convenient and more precise.

[0011] As a further improvement to the above technical solution, the sliding adjustment mechanism includes a mounting base, an adjusting nut, and a drive screw; the mounting base is fixedly installed on the top surface of the substrate and located to the side of the sliding alignment frame in the sliding direction; the adjusting nut is rotatably connected to the mounting base; the drive screw passes through and is threadedly connected to the threaded hole of the adjusting nut and is arranged along the sliding direction of the sliding alignment frame, and one end of the drive screw is fixedly connected to the sliding alignment frame.

[0012] The beneficial effects of the above technical solution are: when adjusting the sliding alignment frame, the adjusting nut is turned to drive the drive screw to move along its length, thereby causing the sliding alignment frame to slide. The displacement control accuracy of the sliding alignment frame can be improved by utilizing the precision of the thread transmission, and the operation is also very convenient.

[0013] As a further improvement to the above technical solution, the traction positioning force measuring mechanism further includes a pressure plate clamping assembly; the sliding alignment frame includes a sliding base plate and a vertical plate; the sliding base plate is parallel to the top surface of the substrate and is adapted to be slidably connected in the slide groove, the bottom end of the vertical plate is vertically fixed to the top surface of the sliding base plate, and the traction positioning force measuring assembly is installed on the top of the vertical plate; the driving end of the sliding adjustment mechanism is connected to the vertical plate to drive it to move, thereby causing the sliding base plate to slide and shift in the slide groove; The pressure plate fastening assembly is mounted on the top surface of the base plate and can press against the top surface of the sliding base plate to lock it in the slide groove.

[0014] The beneficial effects of the above technical solution are: after the sliding alignment frame is adjusted to the correct position, the sliding base plate can be locked in the slide groove by the pressure plate fastening assembly, thereby achieving the overall stability of the sliding alignment frame, so that the upright plate can more stably bear the output force of the actuator piston rod transmitted by the traction positioning force measuring assembly during the test.

[0015] As a further improvement to the above technical solution, the pressure plate fastening assembly includes a pressure plate and a fastening member. The bottom surface of the pressure plate is fixed parallel to the top surface of the base plate and slides against the top surface of the sliding base plate near or away from the end of the actuator mounting bracket. The fastening member is mounted on the pressure plate and one end of it can press against the top surface of the sliding base plate to lock it in the slide groove.

[0016] The beneficial effects of the above technical solution are: the pressure plate plays a role in constraining the sliding base plate in the slide groove to prevent it from coming out, and the fastener can lock the sliding base plate in the slide groove after it is adjusted into place.

[0017] As a further improvement to the above technical solution, the traction positioning force measuring assembly includes a piston rod connection, a force sensor, a traction rod, a traction nut, and a positioning pin; The vertical plate surface is parallel to its sliding direction; a through hole is provided on the end surface of the vertical plate away from the sliding base plate, and the middle part of the pull rod passes through the through hole; the piston rod connecting part is located on the side of the pull rod near the actuator cylinder mounting frame, and the force sensor is located between the piston rod connecting part and the pull rod; one end of the force sensor is connected to one end of the piston rod connecting part, and the other end of the piston rod connecting part is a connecting end that can be adapted to connect with the end of the piston rod of the actuator cylinder; the other end of the force sensor is connected to the end of the pull rod near the actuator cylinder mounting frame for force measurement; the pull nut is rotatably disposed on the side of the vertical plate away from the actuator cylinder mounting frame and is threadedly connected to the pull rod; The end face of the upright plate away from the sliding base plate is provided with a pin hole that communicates with the through hole. One end of the positioning pin can pass through the pin hole and be connected to the pull rod to lock the pull rod on the upright plate.

[0018] The beneficial effects of the above technical solution are as follows: During testing, the connecting end of the piston rod connector is connected to the end of the piston rod of the actuator cylinder. By rotating the pull nut, the pull rod can be driven to move axially, thereby stretching the piston rod of the actuator cylinder to the required test length. Then, one end of the positioning pin passes through the pin hole and is inserted into the pull rod to lock the pull rod, preventing it from shifting axially when the piston rod of the actuator cylinder outputs force. Pressure is supplied to the actuator cylinder under test through a hydraulic power source, so that its piston rod outputs extension force and pushes and pulls the piston rod connector. At this time, the force sensor installed between the piston rod connector and the pull rod can measure the output force of the piston rod. After loosening the positioning pin, readjusting the piston rod extension length, and then re-locking the pull rod by installing the positioning pin, the output force performance under different piston rod extension length conditions can be tested.

[0019] As a further improvement to the above technical solution, the traction positioning force measuring component also includes a pointer and a scale; the pointer is installed at the end of the traction rod away from the actuator cylinder mounting bracket; the scale is fixed on the top surface of the sliding base plate along the length direction parallel to the traction rod; the tip of the pointer corresponds to the scale surface of the scale to record the traction movement distance of the traction rod.

[0020] The beneficial effects of the above technical solution are: when the pull rod drives the piston rod to extend, the distance the pointer moves can be read quickly and accurately through the scale, thereby enabling accurate and quick adjustment of the piston rod extension length, further improving test accuracy and test efficiency.

[0021] As a further improvement to the above technical solution, the traction positioning force measuring component also includes a digital display; the digital display is electrically connected to the force sensor to display the output force data of the actuator piston rod measured by the force sensor.

[0022] The beneficial effect of the above technical solution is that the output force data of the actuator piston rod can be displayed and read directly in real time through the digital display.

[0023] As a further improvement to the above technical solution, a handle is also included, which is mounted on the end of the substrate.

[0024] The beneficial effect of the above technical solution is that the device can be moved to the vicinity of the hydraulic power source more conveniently through the handle, thereby connecting the actuator under test and the hydraulic power source.

[0025] As can be seen from the above technical solution, compared with the prior art, the present invention discloses an actuator piston rod limiting and output force measuring device, which has the following advantages and beneficial effects.

[0026] 1. This utility model designs a convenient-to-operate piston rod limiting and output force measuring device for actuators. It can limit the extension length of the piston rod of the actuator to be tested and detect its output force. Due to the setting of a movable and adjustable sliding alignment frame, it can effectively solve the problem of limiting and measuring the piston rod of a novel dual-chamber actuator. It can detect different piston rods of dual-chamber actuators without re-clamping, which can control the quality stability and reliability of actuator repair, improve work efficiency, save time, and can be applied to the maintenance process of actuators. It has good application prospects and significant economic benefits.

[0027] 2. After the sliding alignment frame of this utility model is adjusted to the correct position, it is fixed by the pressure plate fastening assembly, making the force measurement process more stable. This utility model device is designed with high-strength materials, has a high safety margin, is easy to operate, can accurately limit the piston rod and detect its output force, and improves work efficiency. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 This utility model presents a three-dimensional structural diagram of an actuator piston rod limiting and output force measuring device.

[0030] Figure 2 This utility model discloses an overall structural front view of a piston rod limiting and output force measuring device for an actuator cylinder.

[0031] Figure 3This utility model discloses a schematic diagram of a dual-cavity actuator cylinder structure applicable to an actuator cylinder piston rod limiting and output force measuring device.

[0032] Figure 4 This utility model discloses a schematic diagram of a dual-cavity actuator cylinder applicable to a piston rod limiting and output force measuring device.

[0033] In the diagram: 1. Base plate; 11. Slide groove; 2. Actuator cylinder mounting bracket; 21. Fastening bolt; 3. Pulling and positioning force measuring mechanism; 31. Sliding alignment bracket; 311. Sliding base plate; 312. Vertical plate; 32. Pulling and positioning force measuring assembly; 321. Piston rod connection part; 3211. Connecting sleeve; 3212. Connecting screw; 322. Force sensor; 323. Pulling rod; 324. Pulling nut; 325. Positioning pin; 326. Pointer; 327. Scale; 328. Digital display; 33. Slide adjustment mechanism; 331. Mounting seat; 332. Adjusting nut; 333. Drive screw; 34. Pressure plate fastening assembly; 341. Pressure plate; 342. Fastening part; 4. Handle; 5. Actuator cylinder; 51. Piston rod; 52. Connecting plate. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] According to the embodiments of this utility model, such as Figures 1 to 4 As shown, an actuator piston rod limiting and output force measuring device includes: a base plate 1, an actuator mounting bracket 2, and a traction positioning force measuring mechanism 3.

[0039] The actuator mounting bracket 2 is mounted on the top surface of the base plate 1, and its top is the actuator mounting part; The traction positioning force measuring mechanism 3 is installed on the top surface of the substrate 1 and on the side corresponding to the actuator mounting frame 2. The traction positioning force measuring mechanism 3 includes a sliding alignment frame 31 and a traction positioning force measuring component 32 disposed on the sliding alignment frame 31. The sliding alignment frame 31 can slide and move along a direction parallel to the top surface of the substrate 1 and perpendicular to the traction positioning force measuring mechanism 3 and the actuator mounting frame 2, thereby driving the traction positioning force measuring component 32 to move so that the traction connection end of the traction positioning force measuring component 32 is coaxially corresponding to the piston rod extension end of the actuator mounted on the actuator mounting part.

[0040] The actuator piston rod limiting and output force measuring device of this embodiment is applicable to the piston rod performance testing of a dual-cavity actuator 5. Since the dual-cavity actuator 5 has two piston rods 51 arranged in parallel, in use, the dual-cavity actuator to be tested is installed on the actuator mounting part at the top of the actuator mounting frame 2; and the extension and retraction directions of the two piston rods of the dual-cavity actuator are both along the opposite direction of the traction positioning force measuring mechanism 3 and the actuator mounting frame 2; the position of the sliding alignment frame 31 is slidably adjusted so that the traction connection end of the traction positioning force measuring component 32 is coaxially corresponding and connected to the extension and retraction end of one of the piston rods for testing. The traction positioning force measuring component 32 can pull one of the piston rods of the actuator out of a preset length and position it, and can measure the output force of the actuator piston rod under the condition that the piston rod of the actuator extends out of the preset length; after the test is completed, the traction connection end is disconnected from the extension and retraction end of one of the piston rods 51, and the position of the sliding alignment frame 31 is slidably adjusted so that the traction connection end is coaxially corresponding and connected to the extension and retraction end of the other piston rod 51 for testing again. This invention is applicable to the performance testing of dual-chamber actuators. It eliminates the need for repeated disassembly and reassembly of the dual-chamber actuators and enables the testing of different piston rods of the dual-chamber actuators without re-clamping, thereby improving the testing and maintenance efficiency of the new dual-chamber actuators.

[0041] In some embodiments, the actuator mounting bracket 2 is installed on one side of the top surface of the substrate 1 along the length direction; a groove 11 is provided on the other side of the top surface of the substrate 1 along the width direction of the substrate 1; the bottom of the sliding alignment bracket 31 is slidably connected in the groove 11, and the traction positioning force measuring component 32 is installed on the top of the sliding alignment bracket 31.

[0042] The slide groove 11 serves as a sliding guide for the sliding alignment frame 31, thereby improving the sliding displacement accuracy of the sliding alignment frame 31.

[0043] In some embodiments, the traction positioning force measuring mechanism 3 further includes a sliding adjustment mechanism 33; the sliding adjustment mechanism 33 is mounted on the top surface of the substrate 1 and located to the side of the sliding alignment frame 31 in the sliding direction; the driving end of the sliding adjustment mechanism 33 is connected to the sliding alignment frame 31 to drive it to slide and shift in the slide groove 11.

[0044] The sliding position of the sliding alignment frame 31 is adjusted by driving the sliding adjustment mechanism 33, which makes the operation convenient and more precise.

[0045] In some embodiments, the sliding adjustment mechanism 33 includes a mounting base 331, an adjusting nut 332, and a drive screw 333; the mounting base 331 is fixedly mounted on the top surface of the substrate 1 by screws and is located to the side of the sliding alignment frame 31 in the sliding direction; the adjusting nut 332 is rotatably connected to the mounting base 331 by a bearing; the drive screw 333 passes through and is threadedly connected to the threaded hole of the adjusting nut 332 and is arranged along the sliding direction of the sliding alignment frame 31, and one end of the drive screw 333 is fixedly connected to the sliding alignment frame 31.

[0046] When adjusting the sliding alignment frame 31, the adjusting nut 332 is turned to drive the drive screw 333 to move along its length, thereby causing the sliding alignment frame 31 to slide. The accuracy of the displacement control of the sliding alignment frame 31 can be improved by utilizing the precision of the thread transmission, and the operation is also very convenient.

[0047] In some embodiments, the traction positioning force measuring mechanism 3 further includes a pressure plate clamping assembly 34; the sliding alignment frame 31 includes a sliding base plate 311 and a vertical plate 312; the sliding base plate 311 is parallel to the top surface of the substrate 1 and is adapted to be slidably connected in the slide groove 11, the bottom end of the vertical plate 312 is vertically fixed to the top surface of the sliding base plate 311, and the traction positioning force measuring assembly 32 is installed on the top of the vertical plate 312; the driving end of the sliding adjustment mechanism 33 is connected to the vertical plate 312 to drive it to move, thereby causing the sliding base plate 311 to slide and shift in the slide groove 11; The pressure plate locking assembly 34 is mounted on the top surface of the base plate 1 and can press against the top surface of the sliding base plate 311 to lock it in the slide groove 11.

[0048] After the sliding alignment frame 31 is adjusted into place, the sliding base plate 311 can be locked in the slide groove 11 by the pressure plate fastening assembly 34, thereby achieving the overall stability of the sliding alignment frame 31, so that the upright plate 312 can more stably bear the output force of the actuator piston rod transmitted by the traction positioning force measuring assembly 32 during the test.

[0049] In some embodiments, the pressure plate locking assembly 34 includes a pressure plate 341 and a locking member 342. The bottom surface of the pressure plate 341 is fixed parallel to the top surface of the base plate 1 and slides against the top surface of the sliding base plate 311 near or away from the end of the actuator mounting bracket 2. The locking member 342 is mounted on the pressure plate 341 and one end of it can press against the top surface of the sliding base plate 311 to lock it in the slide groove 11.

[0050] The pressure plate 341 serves to constrain the sliding base plate 311 within the slide groove 11 to prevent it from coming out, and the locking member 342 can lock the sliding base plate 311 into the slide groove 11 after it has been adjusted into place.

[0051] Specifically, there are two pressure plates 341. The bottom surfaces of the two pressure plates 341 are slidably attached to the top surfaces of the sliding base plate 311 at the ends near and away from the actuator mounting bracket 2, respectively, and are both fastened to the top surface of the base plate 1 with screws. The two pressure plates 341 and the slide groove 11 together form a snap-fit ​​slide groove that can prevent the sliding base plate 311 from falling out.

[0052] In some embodiments, the traction positioning force measuring assembly 32 includes a piston rod connection 321, a force sensor 322, a traction rod 323, a traction nut 324, and a positioning pin 325; The surface of the upright plate 312 is parallel to its sliding direction; a through hole is provided on the end of the upright plate 312 away from the sliding base plate 311, and the middle part of the pull rod 323 passes through the through hole; the piston rod connecting part 321 is located on the side of the pull rod 323 near the actuator cylinder mounting bracket 2, and the force sensor 322 is located between the piston rod connecting part 321 and the pull rod 323; one end of the force sensor 322 is connected to one end of the piston rod connecting part 321, and the other end of the piston rod connecting part 321 is a connecting end that can be adapted to connect with the end of the piston rod of the actuator cylinder; the other end of the force sensor 322 is connected to the end of the pull rod 323 near the actuator cylinder mounting bracket 2 for force measurement; the pull nut 324 is rotatably disposed on the side of the upright plate 312 away from the actuator cylinder mounting bracket 2 and is threadedly connected to the pull rod 323; The end face of the upright plate 312 away from the sliding base plate 311 is provided with a pin hole for connecting through holes. One end of the positioning pin 325 can pass through the pin hole and be connected to the pull rod 323 to lock the pull rod 323 on the upright plate 312.

[0053] During testing, the connecting end of the piston rod connecting part 321 is connected to the end of the piston rod of the actuator cylinder. By rotating the pull nut 324, the pull rod 323 can be driven to move axially, thereby stretching the piston rod of the actuator cylinder to the required test length. Then, one end of the positioning pin 325 passes through the pin hole and is inserted into the pull rod 323 to lock the pull rod 323 and prevent it from shifting axially when the piston rod of the actuator cylinder outputs force. The actuator cylinder under test is pressurized by a hydraulic power source so that its piston rod outputs extension force and pushes and pulls the piston rod connecting part 321. At this time, the force sensor 322 installed between the piston rod connecting part 321 and the pull rod 323 can measure the output force of the piston rod. After loosening the positioning pin 325, readjusting the piston rod extension length, and then re-locking the pull rod 323 by installing the positioning pin 325, the output force performance under different piston rod extension length conditions can be tested.

[0054] Specifically, the piston rod connecting part 321 includes a connecting sleeve 3211 and a connecting screw 3212; one end of the connecting sleeve 3211 is fixed to one end of the force sensor 322; the other end of the connecting sleeve 3211 can be sleeved on the telescopic end of the actuator piston rod. The outer peripheral wall of the connecting sleeve 3211 is provided with a threaded through hole, and the connecting screw 3212 is screwed into the threaded through hole. One end of the screw can be inserted into the inner hole of the connecting sleeve 3211 and engaged in the groove on the outer peripheral wall of the telescopic end of the actuator piston rod, so as to lock the end of the actuator piston rod on the connecting sleeve 3211.

[0055] Specifically, the pull nut 324 is rotatably mounted on the side of the upright plate 312 away from the actuator mounting bracket 2 via a bearing; the pull nut 324 is a star-shaped nut that is easy to manually tighten.

[0056] Specifically, the outer peripheral wall of the pull rod 323 has a positioning groove along its length, and the bottom wall of the positioning groove has an insertion hole that can communicate with the corresponding pin hole; there are multiple insertion holes, which are evenly distributed along the length of the positioning groove. One end of the positioning pin 325 can fit through the pin hole and be inserted into the corresponding insertion hole to position the pull rod 323. A positioning block is fixed on the inner wall of the through hole of the upright plate 312 at the corresponding positioning groove. The positioning block slides into the positioning groove to prevent the pull rod 323 from rotating around the axis when the pull nut 324 is turned.

[0057] In some embodiments, the traction positioning force measuring component 32 further includes a pointer 326 and a scale 327; the pointer 326 is vertically fixedly installed at one end of the traction rod 323 away from the actuator cylinder mounting bracket 2; the scale 327 is fixed on the top surface of the sliding base plate 311 along the length direction parallel to the traction rod 323; the tip of the pointer 326 is vertically aligned with the scale surface of the scale 327 to record the traction movement distance of the traction rod 323.

[0058] When the pull rod 323 extends the piston rod, the distance the pointer 326 moves can be read quickly and accurately through the scale 327, thereby enabling accurate and quick adjustment of the piston rod extension length, further improving test accuracy and efficiency.

[0059] In some embodiments, the traction positioning force measuring component 32 further includes a digital display 328; the digital display 328 is electrically connected to the force sensor 322 to display the output force data of the actuator piston rod obtained by the force sensor 322.

[0060] The output force data of the actuator piston rod can be displayed and read directly in real time using the digital display 328.

[0061] Specifically, the digital display 328 is fixedly mounted on the top surface of the substrate 1 and located on the side of the actuator mounting bracket 2 corresponding to the width direction of the substrate 1.

[0062] Specifically, the actuator mounting bracket 2 is an L-shaped mounting plate, including a base plate and a support plate vertically fixed to the base plate; the base plate of the actuator mounting bracket 2 is fixed parallel to the top surface of the base plate 1 by screws; the support plate of the actuator mounting bracket 2 has a fixing hole 1 on its surface, and a fastening bolt 21 for fastening the actuator is inserted through the fixing hole 1. The actuator 5 has a connecting plate 52, and the connecting plate 52 has a fixing hole 2 on its surface; the fastening bolt 21 passes through the fixing hole 1 and the fixing hole 2 in sequence to fasten the connecting plate 52 to the support plate, thereby achieving stable installation of the actuator 5 on the actuator mounting bracket 2. After the actuator 5 is installed in place, its piston rod 51 is at the same height as the connecting sleeve 3211.

[0063] In some embodiments, a handle 4 is also included, which is mounted on the end of the substrate 1.

[0064] The device can be moved to the vicinity of the hydraulic power source more conveniently by using handle 4, and then the actuator under test and the hydraulic power source can be connected.

[0065] Specifically, there are two handles 4, and the two handles 4 are fixed to the two ends of the top surface of the mounting base 1 along the length direction by screws.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0067] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A device for limiting and measuring the output force of an actuator piston rod, characterized in that, include: base plate (1), Actuator mounting bracket (2) is mounted on the top surface of the base plate (1) and its top is an actuator mounting part; A traction positioning force measuring mechanism (3) is installed on the top surface of the substrate (1) and on the side corresponding to the actuator mounting frame (2). The traction positioning force measuring mechanism (3) includes a sliding alignment frame (31) and a traction positioning force measuring component (32) disposed on the sliding alignment frame (31). The sliding alignment frame (31) can slide and shift along a direction parallel to the top surface of the substrate (1) and perpendicular to the direction opposite to the traction positioning force measuring mechanism (3) and the actuator mounting frame (2), thereby driving the traction positioning force measuring component (32) to move so that the traction connection end of the traction positioning force measuring component (32) is coaxially corresponding to the piston rod extension end of the actuator mounted on the actuator mounting part.

2. The actuator piston rod limiting and output force measuring device according to claim 1, characterized in that, The actuator mounting bracket (2) is installed on one side of the top surface of the substrate (1) along the length direction; the other side of the top surface of the substrate (1) along the width direction of the substrate (1) is provided with a sliding groove (11); the bottom of the sliding alignment bracket (31) is slidably connected in the sliding groove (11), and the traction positioning force measuring component (32) is installed on the top of the sliding alignment bracket (31).

3. The actuator piston rod limiting and output force measuring device according to claim 2, characterized in that, The traction positioning force measuring mechanism (3) further includes a sliding adjustment mechanism (33); the sliding adjustment mechanism (33) is installed on the top surface of the substrate (1) and located on the side of the sliding alignment frame (31) in the sliding direction; the driving end of the sliding adjustment mechanism (33) is connected to the sliding alignment frame (31) to drive it to slide and shift in the slide groove (11).

4. The actuator piston rod limiting and output force measuring device according to claim 3, characterized in that, The sliding adjustment mechanism (33) includes a mounting base (331), an adjusting nut (332), and a drive screw (333). The mounting base (331) is fixedly mounted on the top surface of the base plate (1) and located on the side of the sliding alignment frame (31) in the sliding direction. The adjusting nut (332) is rotatably connected to the mounting base (331). The drive screw (333) passes through and is threadedly connected to the threaded hole of the adjusting nut (332) and is arranged along the sliding direction of the sliding alignment frame (31). One end of the drive screw (333) is fixedly connected to the sliding alignment frame (31).

5. The actuator piston rod limiting and output force measuring device according to claim 3, characterized in that, The traction positioning force measuring mechanism (3) further includes a pressure plate clamping assembly (34); the sliding alignment frame (31) includes a sliding base plate (311) and a vertical plate (312); the sliding base plate (311) is parallel to the top surface of the base plate (1) and is adapted to slide in the slide groove (11); the bottom end of the vertical plate (312) is vertically fixed to the top surface of the sliding base plate (311); the traction positioning force measuring assembly (32) is installed on the top of the vertical plate (312); the driving end of the sliding adjustment mechanism (33) is connected to the vertical plate (312) to drive it to move, thereby driving the sliding base plate (311) to slide and shift in the slide groove (11); The pressure plate fastening assembly (34) is mounted on the top surface of the base plate (1) and can press against the top surface of the sliding base plate (311) to lock it in the slide groove (11).

6. The actuator piston rod limiting and output force measuring device according to claim 5, characterized in that, The pressure plate fastening assembly (34) includes a pressure plate (341) and a fastening member (342). The bottom surface of the pressure plate (341) is fixed parallel to the top surface of the base plate (1) and slides against the top surface of the sliding base plate (311) near or away from the end of the actuator mounting bracket (2). The fastening member (342) is mounted on the pressure plate (341) and one end of it can press against the top surface of the sliding base plate (311) to lock it in the slide groove (11).

7. The actuator piston rod limiting and output force measuring device according to claim 5, characterized in that, The traction positioning force measuring assembly (32) includes a piston rod connection (321), a force sensor (322), a traction rod (323), a traction nut (324), and a positioning pin (325). The surface of the upright plate (312) is parallel to its sliding direction; a through hole is provided on the end surface of the upright plate (312) away from the sliding base plate (311), and the middle part of the pull rod (323) passes through the through hole; the piston rod connecting part (321) is located on the side of the pull rod (323) near the actuator cylinder mounting bracket (2), and the force sensor (322) is located between the piston rod connecting part (321) and the pull rod (323); the force sensor (322) 2) One end is connected to one end of the piston rod connecting part (321), and the other end of the piston rod connecting part (321) is a connecting end that can be adapted to connect with the end of the piston rod of the actuator cylinder; the other end of the force sensor (322) is connected to the end of the pull rod (323) near the actuator cylinder mounting frame (2) for force measurement; the pull nut (324) is rotatably disposed on the side of the vertical plate (312) away from the actuator cylinder mounting frame (2) and is threadedly connected to the pull rod (323); The end face of the upright plate (312) away from the sliding base plate (311) is provided with a pin hole that connects to the through hole. One end of the positioning pin (325) can pass through the pin hole and be connected to the pull rod (323) to lock the pull rod (323) on the upright plate (312).

8. The actuator piston rod limiting and output force measuring device according to claim 7, characterized in that, The traction positioning force measuring component (32) also includes a pointer (326) and a scale (327); the pointer (326) is installed at the end of the traction rod (323) away from the actuator cylinder mounting bracket (2); the scale (327) is fixed on the top surface of the sliding base plate (311) along the length direction parallel to the traction rod (323); the tip of the pointer (326) corresponds to the scale surface of the scale (327) to record the traction movement distance of the traction rod (323).

9. The actuator piston rod limiting and output force measuring device according to claim 7, characterized in that, The traction positioning force measuring component (32) also includes a digital display (328); the digital display (328) is electrically connected to the force sensor (322) to display the output force data of the actuator piston rod measured by the force sensor (322).

10. The actuator piston rod limiting and output force measuring device according to any one of claims 1-9, characterized in that, It also includes a handle (4), which is mounted on the end of the substrate (1).

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