Intelligent calibration dynamometer unit for spaceflight

Abstract

The utility model discloses an intelligent calibration dynamometer unit for spaceflight, and belongs to the field of dynamometer equipment. An intelligent calibration dynamometer unit for spaceflight comprises a bottom plate, and a stand column, a torque measuring tool and a second adjusting mechanism are sequentially fixed to the upper side of the bottom plate. According to the utility model, the aerospace equipment to be measured is calibrated by adopting an equivalent torque value method, accurate measurement and calibration of the torque of the aerospace equipment are realized through mutual cooperation of the torque measurement tool, the rotating mechanism, the tension sensor, the force arm rod and the adjusting mechanism, and the torque of the aerospace equipment is accurately measured and calibrated by electrically adjusting the length of the force arm and the tension. According to the utility model, the tedious operation of frequently loading and disassembling the weight in the traditional mode is avoided, the calibration efficiency is obviously improved, meanwhile, the visual display function of the electric control panel enables the reading of the torque value to be more convenient, the calibration accuracy is improved, the operation process is simplified, the working efficiency is improved, and the production cost is reduced. And the high-precision requirement of aerospace equipment calibration is effectively met.

Description

Technical Field

[0001] The utility model relates to the field of dynamometer equipment, in particular to an intelligent calibration dynamometer group for aerospace use. Background Art

[0002] The aerospace dynamometer is an important device specially used to simulate the working environment of aerospace vehicles to accurately test the torque and speed of aerospace engines. For example, the patent number CN109855793A is a torque measurement and calibration method for a high-power dynamometer. In this patent, the torque measurement tool is connected to the dynamometer through the torque connection port, and the standard weights are placed in the corresponding weight trays in sequence according to the torque measurement direction. The torque indication displayed by the high-power dynamometer device is compared with the standard torque indication, thereby completing the calibration of the high-power dynamometer.

[0003] After in-depth research and analysis, we found that the torque measurement and calibration equipment in the current cited patents have obvious deficiencies when dealing with large torque dynamometers. Especially in the process of loading and removing weights, the operation is cumbersome and time-consuming. Even with the assistance of a lift, it is still difficult to significantly improve efficiency. More importantly, calibrating a large torque dynamometer requires weights of considerable weight, which not only increases the difficulty of operation, but also makes the entire calibration process inefficient. Therefore, we urgently need to improve the existing technology to address these deficiencies and defects and improve the efficiency and accuracy of torque measurement and calibration. Utility Model Content

[0004] The purpose of the present invention is to provide an intelligent calibration dynamometer unit for aerospace use to solve the problems raised in the background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A smart calibration dynamometer unit for aerospace use comprises: a base plate, a column, a torque measuring tool and a second adjusting mechanism are fixed in sequence on the upper side of the base plate, the second adjusting mechanism is symmetrically distributed on both sides of the torque measuring tool, a hydraulic cylinder is fixed in the column, a fixed platform is fixed to the power output end of the hydraulic cylinder, force arm rods are respectively connected to both sides of the torque measuring tool, the force arm rods are located directly above the second adjusting mechanism, an adjusting block is slidably connected in the force arm rod in a horizontal direction, an adjusting mechanism one is fixed on the outer side of the end of the force arm rod, the adjusting mechanism one is used to drive the adjusting block to move horizontally, a tension sensor is hinged on the lower side of the adjusting block, a screw is rotatably connected to the lower side of the tension sensor, an L-shaped seat is slidably connected on the upper side of the adjusting mechanism two, a rotating mechanism is fixed on the upper side of the L-shaped seat, and the rotating mechanism is used to drive the screw to move up and down.

[0007] Furthermore, the torque measuring tool is connected with a coupling in the direction close to the column.

[0008] Furthermore, a motor is provided on the adjustment mechanism, a screw rod is fixed to the power output end of the motor, the motor is installed and fixed on the outer side of the lever arm, the screw rod is rotatably connected to the inner side of the lever arm, and the screw rod is connected to the adjustment block through a thread.

[0009] Furthermore, the rotating mechanism is provided with a motor three, a bevel gear one is fixed to the power output end of the motor three, the edge of the bevel gear one is meshingly connected with the bevel gear two, a threaded sleeve is fixed to the axial inner side of the bevel gear two, the threaded sleeve is connected to the screw by threads, the motor three is fixed to the upper side of the L-shaped seat, and the bevel gear two is rotatably connected to the upper side of the L-shaped seat.

[0010] Furthermore, a slide groove is provided on the second adjustment mechanism, and the slide groove is fixed to the upper surface of the base plate. A second motor is fixed to the outer side of the slide groove, and a second screw rod is fixed to the power output end of the second motor. The second screw rod is rotatably connected to the slide groove, and the second screw rod is threadedly connected to the L-shaped seat, and the L-shaped seat is slidably connected to the slide groove.

[0011] Furthermore, a scale line is arranged on the outer side of the force arm rod in the horizontal direction, and a pointing arrow is fixed on the adjustment block in the vertical direction close to the scale line.

[0012] Furthermore, an electric control panel is fixedly installed on the outer side of the column, and the electric control panel is electrically connected to the torque measuring tool, the first adjustment mechanism, the rotating mechanism, the second adjustment mechanism, and the tension sensor respectively.

[0013] Compared with the prior art, the utility model provides an intelligent calibration dynamometer unit for aerospace use, which has the following beneficial effects:

[0014] In the utility model, the equivalent torque value method is adopted to calibrate the aerospace equipment to be measured. By setting the torque measuring tool, the rotating mechanism, the tension sensor, the lever arm and the adjustment mechanism, the precise measurement and calibration of the torque of the aerospace equipment are realized by cooperating with each other. By electrically adjusting the lever arm length and the tension size, the tedious operation of frequently loading and removing weights in the traditional method is avoided, and the calibration efficiency is significantly improved. At the same time, the intuitive display function of the electric control panel makes the reading of the torque value more convenient and improves the accuracy of the calibration. The utility model simplifies the operation process, improves the work efficiency, and effectively meets the high-precision requirements of the aerospace equipment calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural diagram of an aerospace intelligent calibration dynamometer unit proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the structure of an aerospace intelligent calibration dynamometer unit proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of an adjustment mechanism of an intelligent calibration dynamometer unit for aerospace use proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the second structure of the regulating mechanism of an intelligent calibration dynamometer unit for aerospace use proposed by the utility model;

[0019] Figure 5 The utility model proposes an intelligent calibration dynamometer for aerospace use. Figure 3 Schematic diagram of the structure of part A;

[0020] Figure 6 The utility model proposes an intelligent calibration dynamometer for aerospace use. Figure 4 Schematic diagram of the structure of part B.

[0021] In the figure: 1. base plate; 2. column; 21. hydraulic cylinder; 22. fixed table; 3. torque measuring tool; 31. coupling; 4. lever arm; 41. scale line; 5. adjusting mechanism 1; 51. motor 1; 52. screw 1; 6. rotating mechanism; 61. motor 3; 62. bevel gear 1; 63. bevel gear 2; 64. threaded sleeve; 7. adjusting mechanism 2; 71. slide; 72. motor 2; 73. screw 2; 8. adjusting block; 81. pointing arrow; 9. tension sensor; 10. screw; 11. L-shaped seat; 12. electric control panel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Embodiment 1:

[0025] Reference Figure 1-6, an intelligent calibration dynamometer for aerospace, comprising: a base plate 1, a column 2, a torque measuring tool 3, and an adjusting mechanism 7 are fixed on the upper side of the base plate 1 in sequence, the adjusting mechanism 7 is symmetrically distributed on both sides of the torque measuring tool 3, a hydraulic cylinder 21 is fixed in the column 2, a fixed platform 22 is fixed at the power output end of the hydraulic cylinder 21, and a force arm 4 is respectively connected to both sides of the torque measuring tool 3, the force arm 4 is located directly above the adjusting mechanism 7, an adjusting block 8 is slidably connected in the force arm 4 along the horizontal direction, an adjusting mechanism 5 is fixed on the outer side of the end of the force arm 4, the adjusting mechanism 5 is used to drive the adjusting block 8 to move horizontally, a tension sensor 9 is hinged on the lower side of the adjusting block 8, a screw 10 is rotatably connected to the lower side of the tension sensor 9, an L-shaped seat 11 is slidably connected to the adjusting mechanism 7, a rotating mechanism 6 is fixed on the upper side of the L-shaped seat 11, and the rotating mechanism 6 is used to drive the screw 10 to move up and down.

[0026] like Figure 1 As shown, the torque measuring tool 3 is connected with a coupling 31 in the direction close to the column 2 .

[0027] like Figure 3 As shown, the adjusting mechanism 5 is provided with a motor 51, a screw 52 is fixed to the power output end of the motor 51, the motor 51 is installed and fixed to the outside of the arm rod 4, the screw 52 is rotatably connected to the inside of the arm rod 4, and the screw 52 is connected to the adjusting block 8 through a thread;

[0028] The starting motor 51 can drive the screw rod 52 to rotate, and the screw rod 52 can drive the adjustment block 8 to slide horizontally in the lever arm 4 through the thread, thereby changing the position of the adjustment block 8.

[0029] like Figure 6 As shown, the rotating mechanism 6 is provided with a motor 3 61, a bevel gear 1 62 is fixed to the power output end of the motor 3 61, the edge of the bevel gear 1 62 is meshedly connected with a bevel gear 2 63, a threaded sleeve 64 is fixed to the axial inner side of the bevel gear 2 63, the threaded sleeve 64 is connected to the screw 10 through a thread, the motor 3 61 is fixed to the upper side of the L-shaped seat 11, and the bevel gear 2 63 is rotatably connected to the upper side of the L-shaped seat 11;

[0030] Starting the motor three 61 on the rotating mechanism 6 can drive the bevel gear one 62 to rotate, and the bevel gear one 62 drives the bevel gear two 63 to rotate through the meshing between the gears. The bevel gear two 63 synchronously drives the threaded sleeve 64 to rotate. Since the threaded sleeve 64 is threadedly connected to the screw 10, it can drive the screw 10 to move up and down, so that the screw 10 generates a vertical pulling force on the tension sensor 9.

[0031] like Figure 4As shown, the adjusting mechanism 2 7 is provided with a slide groove 71, the slide groove 71 is fixed to the upper surface of the bottom plate 1, the outer side of the slide groove 71 is fixed with a motor 2 72, the power output end of the motor 2 72 is fixed with a screw rod 2 73, the screw rod 2 73 is rotatably connected to the slide groove 71, the screw rod 2 73 is connected to the L-shaped seat 11 by threads, and the L-shaped seat 11 is slidably connected to the slide groove 71;

[0032] The motor 2 72 on the start-up adjustment mechanism 2 7 can drive the screw rod 2 73 to rotate, and the screw rod 2 73 drives the L-shaped seat 11 to slide horizontally in the slide groove 71 through the thread, thereby changing the horizontal position of the L-shaped seat 11 in the slide groove 71.

[0033] Embodiment 2:

[0034] The difference between this embodiment and embodiment 1 is that:

[0035] like Figure 5 As shown, a scale line 41 is provided on the outer side of the lever arm rod 4 in the horizontal direction, and a pointing arrow 81 is fixed on the adjusting block 8 in the vertical direction close to the scale line 41; the pointing arrow 81 points to different values ​​on the scale line 41, so that the operator can intuitively understand the length of the lever arm at the current position of the adjusting block 8.

[0036] like Figure 1 As shown, an electric control panel 12 is fixedly mounted on the outer side of the column 2, and the electric control panel 12 is electrically connected to the torque measuring fixture 3, the adjusting mechanism 1 5, the rotating mechanism 6, the adjusting mechanism 2 7, and the tension sensor 9 respectively.

[0037] Working principle: In the working state of the utility model, the aerospace equipment to be tested can be placed on the fixed table 22, and then the hydraulic cylinder 21 is started through the external switch, and the movable rod at the output end of the hydraulic cylinder 21 is extended and retracted to adjust the horizontal height of the aerospace equipment to be tested, and then the torque measuring tool 3 is connected to the aerospace equipment to be tested through the coupling 31. The operator adjusts the horizontal position of the adjustment block 8 on the force arm rod 4 on one side of the torque measuring tool 3 and the horizontal position of the L-shaped seat 11 on the second adjustment mechanism 7 according to the rated torque of the equipment to be tested and the measurement direction of the torque, so that the screw 10 is perpendicular to the base plate 1, and then the driving rotation mechanism 6 drives the screw 10 to generate a constant downward pulling force, so as to apply a certain torque on the equipment to be tested through the torque measuring tool 3. The constant pulling force can be measured by the tension sensor 9 and transmitted to The electric control panel 12 is calculated by the principle of the physics formula: torque = force × lever. According to the pulling force value of the screw rod 10 and the horizontal position of the adjusting block 8 on the lever arm 4, the torque value can be calculated and displayed intuitively through the display screen on the electric control panel 12. Finally, the torque value displayed on the electric control panel 12 is compared with the rated value of the aerospace equipment being tested, and the calibration of the aerospace equipment can be completed. The calibration process can drive the screw rod 10 to adjust the up and down positions through the cooperation of the rotating mechanism 6 and the tension sensor 9, and generate a constant pulling force value at the specified position below the lever arm 4. Through the cooperation of the scale line 41, the adjusting mechanism 1 5, and the adjusting mechanism 2 7, the lever arm length corresponding to the adjusting block 8 can be accurately adjusted, thereby avoiding the inconvenience caused by the operator frequently loading and removing weights, and effectively improving the calibration efficiency of the aerospace equipment.

Claims

1. An intelligent calibration dynamometer for aerospace use, include: A base plate (1), characterized in that a column (2), a torque measuring fixture (3), and a second adjusting mechanism (7) are fixed in sequence on the upper side of the base plate (1), the second adjusting mechanism (7) being symmetrically distributed on both sides of the torque measuring fixture (3), a hydraulic cylinder (21) being fixed inside the column (2), a fixed platform (22) being fixed at the power output end of the hydraulic cylinder (21), and force arms (4) being connected to both sides of the torque measuring fixture (3), the force arms (4) being located directly above the second adjusting mechanism (7), and the inner edge of the force arms (4) An adjusting block (8) is slidably connected in the horizontal direction, an adjusting mechanism (5) is fixed on the outer side of the end of the lever arm (4), and the adjusting mechanism (5) is used to drive the adjusting block (8) to move horizontally, a tension sensor (9) is hinged on the lower side of the adjusting block (8), and a screw (10) is rotatably connected to the lower side of the tension sensor (9), and an L-shaped seat (11) is slidably connected on the upper side of the adjusting mechanism (7), and a rotating mechanism (6) is fixed on the upper side of the L-shaped seat (11), and the rotating mechanism (6) is used to drive the screw (10) to move up and down.

2. The aerospace intelligent calibration dynamometer assembly according to claim 1, It is characterized in that The torque measuring tool (3) is connected with a coupling (31) in a direction close to the column (2).

3. The aerospace intelligent calibration dynamometer assembly according to claim 1, It is characterized in that The adjusting mechanism (5) is provided with a motor (51), a screw (52) is fixed to the power output end of the motor (51), the motor (51) is mounted and fixed on the outside of the lever arm (4), the screw (52) is rotatably connected to the inside of the lever arm (4), and the screw (52) is connected to the adjusting block (8) through a thread.

4. The aerospace intelligent calibration dynamometer assembly according to claim 1, It is characterized in that The rotating mechanism (6) is provided with a motor three (61), a bevel gear one (62) is fixed to the power output end of the motor three (61), the edge of the bevel gear one (62) is meshingly connected with a bevel gear two (63), a threaded sleeve (64) is fixed to the axial inner side of the bevel gear two (63), the threaded sleeve (64) is connected to the screw rod (10) by threads, the motor three (61) is fixed to the upper side of the L-shaped seat (11), and the bevel gear two (63) is rotatably connected to the upper side of the L-shaped seat (11).

5. The aerospace intelligent calibration dynamometer assembly according to claim 4, It is characterized in that The second adjusting mechanism (7) is provided with a slide groove (71), the slide groove (71) is fixed to the upper surface of the bottom plate (1), a second motor (72) is fixed to the outer side of the slide groove (71), a second screw rod (73) is fixed to the power output end of the second motor (72), the second screw rod (73) is rotatably connected to the slide groove (71), the second screw rod (73) is connected to the L-shaped seat (11) by threads, and the L-shaped seat (11) is slidably connected to the slide groove (71).

6. The aerospace intelligent calibration dynamometer assembly according to claim 1, It is characterized in that The outer side of the force arm (4) is provided with a scale line (41) in the horizontal direction, and the adjustment block (8) is fixed with a pointing arrow (81) in the vertical direction in the direction close to the scale line (41).

7. The aerospace intelligent calibration dynamometer assembly according to claim 1, It is characterized in that An electric control panel (12) is fixedly mounted on the outer side of the column (2), and the electric control panel (12) is electrically connected to the torque measuring fixture (3), the first adjustment mechanism (5), the rotating mechanism (6), the second adjustment mechanism (7), and the tension sensor (9).

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