Special tool for fuel compensator with multi-degree-of-freedom dynamic pose simulation function
By designing a special tool for fuel compensator with multi-degree of freedom dynamic posture simulation functions, the position changes of fuel compensator are simulated by using guide rails, sliders, pulleys and motors, and combined with sensors for measurement and closed-loop driving, the existing technology is solved. The problem of the actual working conditions cannot be simulated, and efficient posture testing is achieved.
Patent Information
- Application Number
- CN202411134178.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2024-12-20
AI Technical Summary
The existing fuel compensators lack special tooling and cannot simulate the position of the fuel compensator under actual working conditions, resulting in the inability to effectively test the compensation performance.
Design a special tool for fuel compensator with multi-degree of freedom dynamic position simulation functions, including installation of base plate, translation module, pitch module, rotation module and ball head support, and realize fuel compensator through guide rails, sliders, pulleys and motors pose simulation, combined with sensors for measurement and closed-loop driving.
It realizes all-round dynamic simulation of the position of the fuel compensator, with stable structure, fast response, small error and high efficiency, meeting the performance testing needs under actual working conditions.
Smart Images
Figure CN119164622A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of fuel compensators, and in particular to a special tooling for fuel compensators with a multi-degree-of-freedom dynamic posture simulation function. Background Art
[0002] As one of the important connecting components in the fuel pipeline of an aircraft engine, the fuel compensator is mainly used to compensate for changes in pipeline size and posture caused by thermal expansion and contraction, vibration, installation errors, etc., to eliminate pipeline system stress and protect pipelines and accessories. The fuel compensator, which includes a ball head and upper and lower shells, is different from the traditional bellows-type fuel compensator. It compensates for the angular deviation between the upstream and downstream pipelines through the ball head, and compensates for the displacement deviation between the upstream and downstream pipelines through the nesting of the upper and lower shells. At present, there is no special tooling for this type of fuel compensator, and it is impossible to simulate the posture of the fuel compensator under actual working conditions to test the compensation performance. There is an urgent need for a special tooling for the fuel compensator with a simple structure, realistic simulation, and fast response to meet the performance test requirements of the fuel compensator to compensate for the displacement and angular deviation between the upstream and downstream pipelines under actual working conditions. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a special tooling for a fuel compensator with a multi-degree-of-freedom dynamic posture simulation function in response to the defects involved in the background technology, which can meet the needs of truly simulating the posture of the fuel compensator under actual working conditions and has the characteristics of stable structure, true simulation, high efficiency and low cost.
[0004] The present invention adopts the following technical solutions to solve the above technical problems: A special tooling for a fuel compensator with a multi-degree-of-freedom dynamic posture simulation function, comprising a mounting base plate, a translation module, a pitch module, a rotation module and a ball head bracket; The translation module is arranged on the mounting base plate, and comprises a translation plate, first to second guide rails, first to fourth sliders, a translation motor, a first driving pulley, a first passive pulley, a first synchronous belt, a mounting seat, a pressure plate and a displacement sensor; The first guide rail and the second guide rail are arranged in parallel on the mounting base plate; The first slider and the second slider are arranged on the first guide rail and can slide freely; the third slider and the fourth slider are arranged on the second guide rail and can slide freely; The translation plate is respectively fixedly connected to the first to fourth sliding blocks, and can slide freely along the first guide rail and the second guide rail relative to the mounting base plate; The translation motor is fixed on the mounting base plate, and its output shaft is coaxially fixedly connected with the first driving pulley; The first passive pulley is arranged on the mounting base through a mounting seat and can rotate freely; The first synchronous belt cooperates with the first active pulley and the first passive pulley respectively, so that the first active pulley can drive the first passive pulley to rotate; and the first synchronous belt is parallel to the first guide rail; The pressing plate is arranged on the end surface of the translation plate close to the mounting base plate, and is used to clamp a part of the first synchronous belt between the pressing plate and the translation plate, so that the translation plate can slide along the first guide rail following the synchronous belt; The displacement sensor is arranged on the mounting base plate and is used to measure the displacement between the translation plate and the mounting base plate; The pitch module comprises first to second mounting side plates, first to second bearings, first to second rotating shafts, first to second rocker arms, a pitch plate, a pitch motor, a second driving pulley, a second passive pulley, a second synchronous belt and a first angle sensor; The first and second mounting side plates are arranged in parallel and the lower ends are vertically fixedly connected to the translation plate, and the upper ends are provided with mounting through holes; The first bearing is arranged in the mounting through hole of the first mounting side plate, and the outer ring is coaxially fixedly connected with the mounting through hole of the first mounting side plate; the second bearing is arranged in the mounting through hole of the second mounting side plate, and the outer ring is coaxially fixedly connected with the mounting through hole of the second mounting side plate; The first rocker arm and the second rocker arm have the same structure, are arranged in parallel, and the lower ends thereof are respectively vertically fixedly connected to the two ends of the pitch plate; One end of the first rotating shaft is vertically fixedly connected to the upper end of the first rocker arm, and the other end passes through the inner ring of the first bearing and is coaxially fixedly connected to the inner ring of the first bearing; one end of the second rotating shaft is vertically fixedly connected to the upper end of the second rocker arm, and the other end passes through the inner ring of the second bearing and is coaxially fixedly connected to the inner ring of the second bearing; the first and second rotating shafts are coaxial, so that the pitch plate is located between the first and second mounting side plates and can rotate freely around the first and second rotating shafts; The second driven pulley is a hollow pulley, which is sleeved on the second rotating shaft and coaxially fixedly connected with the second rotating shaft; The pitch motor is arranged on the second mounting side plate, and the output shaft of the pitch motor is coaxially fixedly connected with the second driving pulley; The second synchronous belt cooperates with the second active pulley and the second passive pulley respectively, so that the pitch motor can drive the second rotation axis to rotate and then drive the pitch plate to rotate around the second rotation axis; The first angle sensor is arranged on the first rotating shaft and is used to measure the rotation angle of the first rotating shaft relative to the first mounting side plate; The ball head bracket comprises a fixing ring, a first fixing plate and a second fixing plate, wherein the fixing ring is in a circular ring shape and has a plurality of through holes uniformly arranged circumferentially thereon for fixing the ball head of the fuel compensator and its corresponding pipeline flange; one end of the first fixing plate is connected to the outer wall of the fixing ring and is coplanar with the fixing ring, and the other end is vertically fixedly connected to one end of the second fixing plate; The rotating module comprises a rotating motor, a third rotating shaft, a third bearing, a third driving pulley, a third passive pulley, a third synchronous belt and a second angle sensor; A mounting through hole for mounting the third bearing is provided at the center of the pitch plate; The third bearing is arranged in the mounting through hole of the pitch plate, and the outer ring and the mounting through hole of the pitch plate are coaxially fixedly connected; The third rotating shaft passes through the inner ring of the third bearing and is coaxially fixedly connected to the inner ring of the third bearing, and its upper end is vertically fixedly connected to the second fixing plate; the axis of the third rotating shaft and the axis of the first rotating shaft are vertically intersected; The third driven pulley is a hollow pulley, which is sleeved on the third rotating shaft and is coaxially fixedly connected to the third rotating shaft; The rotating motor is arranged on the pitching plate, and its output shaft is coaxially fixedly connected with the third driving pulley; The third synchronous belt cooperates with the third active pulley and the third passive pulley respectively, so that the rotary motor can drive the third rotary shaft to rotate; The second angle sensor is arranged on the third rotation axis, and is used to measure the rotation angle of the third rotation axis relative to the pitch plate.
[0005] As a further optimization scheme of the special tooling for fuel compensator with multi-degree-of-freedom dynamic posture simulation function of the present invention, reinforcing ribs are provided at the connection between the first fixing plate and the second fixing plate to improve the rigidity of the ball head bracket.
[0006] As a further optimization scheme of the special tooling for a fuel compensator with a multi-degree-of-freedom dynamic posture simulation function of the present invention, the displacement sensor adopts a pull-rope type sensor, whose shell is fixed on the mounting base, the measuring rope head and the translation plate are fixedly connected, and the measuring rope is parallel to the first guide rail and coplanar with the translation plate.
[0007] As a further optimization scheme of the special tooling for a fuel compensator with a multi-degree-of-freedom dynamic posture simulation function of the present invention, the first angle sensor and the second angle sensor both adopt absolute encoders, wherein the input blind hole of the first angle sensor is coaxially fixedly connected to the first rotating shaft through a first coupling, and the shell of the first angle sensor is fixedly connected to the first mounting side plate; the input blind hole of the second angle sensor is coaxially fixedly connected to the third rotating shaft through a second coupling, and the shell of the second angle sensor is fixedly connected to the pitch plate.
[0008] As a further optimization scheme of the fuel compensator special tooling with multi-degree-of-freedom dynamic posture simulation function of the present invention, it also includes a first limit zeroing module and a second limit zeroing module; The first limit zeroing module and the second limit zeroing module both comprise a zeroing cylinder, a rotating rod and a limit ring; The zero return cylinder comprises a cylinder body, a spring and a ball; the cylinder body is a hollow cylinder, one end of which is closed and the other end of which is provided with a through hole in the center; the spring and the ball are both arranged in the cylinder body, one end of the spring is fixedly connected to the closed end of the cylinder body, and the other end of the spring is fixedly connected to the ball, in a compressed state, so that the ball and the through hole on the cylinder body are against each other and a part of the ball is exposed from the through hole of the cylinder body; The closed end of the zero return cylinder is vertically fixedly connected to one end of the rotating rod; a through hole is provided at the center of the rotating rod; The limiting ring is in the shape of a ring, and comprises an inner wall, an A end face, an outer wall, and a B end face which are connected in sequence, and the A end face is provided with a stopper rod which is vertically fixed thereto, and the A end face is also provided with a concave hole which matches the sphere; The first position limiting zeroing module is arranged between the first angle sensor and the first mounting side plate, wherein the position limiting ring of the first position limiting zeroing module is fixed on the first mounting side plate, the radius of which is larger than the mounting through hole on the first mounting side plate and is coaxial with the mounting through hole on the first mounting side plate; the rotating rod of the first position limiting zeroing module is coaxially fixedly connected with the first coupling through the through hole at its center, the ball on the zeroing cylinder of the first position limiting zeroing module and the A end face of its position limiting ring are abutted, and when the concave hole on the position limiting ring of the first position limiting zeroing module and the ball on the zeroing cylinder thereof cooperate, the first angle sensor is in a zeroing state; the blocking rod on the position limiting ring of the first position limiting zeroing module is used to cooperate with its rotating rod to limit the rotation angle of the first coupling; The second position limit zeroing module is arranged between the second angle sensor and the pitch plate, wherein the position limit ring of the second position limit zeroing module is fixed on the pitch plate, has a radius larger than the mounting through hole on the pitch plate and is coaxial with the mounting through hole on the pitch plate; the rotating rod of the second position limit zeroing module is coaxially fixedly connected with the second coupling through the through hole at its center, the ball on the zeroing cylinder of the second position limit zeroing module and the A end face of its position limit ring are abutted, and when the concave hole on the position limit ring of the second position limit zeroing module and the ball on the zeroing cylinder are matched, the second angle sensor is in a zeroing state; the blocking rod on the position limit ring of the second position limit zeroing module is used to cooperate with its rotating rod to limit the rotation angle of the second coupling.
[0009] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects: 1. The rotation module uses the translation plate as the base and installs the fuel compensator through the ball head bracket, which can realize the coupling of the axial translation of the compensator shell and the pitch and yaw rotation of the ball head, and dynamically simulate the compensator posture in all directions to simulate the reality; 2. Both the pitch module and the rotation module have limited position design, and the structure is stable and reliable; at the same time, there is a zeroing design, which can realize closed-loop drive and position zeroing according to the measurement feedback of the first and second sensors, with fast response, small error and high efficiency; 3. The synchronous belt transmission is stable and can be transmitted over a certain range of long distances. The motor indirectly drives the rotating shaft through the synchronous belt, leaving space for the angle sensor to be directly connected to the rotating shaft. The structure is compact and stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structural explosion of the translation module in the present invention; Figure 3 It is a schematic diagram of the exploded structure of the pitch module, the rotation module and the ball head bracket in the present invention; Figure 4 It is a schematic diagram of the exploded structure of the ball heads on both sides of the fuel compensator, the upstream and downstream pipeline flanges and the two ball head brackets; Figure 5 It is a schematic diagram of the structural explosion when the first limit zeroing module of the present invention is installed.
[0011] In the figure, 1-mounting base plate, 2-ball head bracket, 3-first guide rail, 4-second guide rail, 5-first slider, 6-second slider, 7-third slider, 8-fourth slider, 9-translational motor, 10-first active pulley, 11-first passive pulley, 12-first synchronous belt, 13-translational plate, 14-pressure plate, 15-displacement sensor, 16-first mounting side plate, 17-second mounting side plate, 18-first bearing, 19-second bearing, 20-first rotating shaft, 21-second rotating shaft, 22-first rocker arm, 23-second rocker arm, 24 -pitch plate, 25-pitch motor, 26-second active pulley, 27-second passive pulley, 28-second synchronous belt, 29-first angle sensor, 30-rotating motor, 31-third rotating shaft, 32-third bearing, 33-third active pulley, 34-third passive pulley, 35-third synchronous belt, 36-second angle sensor, 37-first coupling, 38-rotating rod of the first position limit zeroing module, 39-zeroing cylinder of the first position limit zeroing module, 40-limiting ring of the first position limit zeroing module, 41-blocking rod of the first position limit zeroing module. DETAILED DESCRIPTION
[0012] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings: The present invention can be implemented in many different forms and should not be considered to be limited to the embodiments described herein. On the contrary, these embodiments are provided to make this disclosure thorough and complete, and will fully express the scope of the present invention to those skilled in the art. In the accompanying drawings, components are enlarged for clarity.
[0013] It should be understood that although the terms first, second, third, etc. can be used here to describe various elements, components and / or parts, these elements, components and / or parts are not limited by these terms. These terms are only used to distinguish elements, components and / or parts from each other. Therefore, the first element, component and / or part discussed below can become the second element, component or part without departing from the teaching of the present invention.
[0014] like Figure 1 As shown, the present invention discloses a special tooling for a fuel compensator with a multi-degree-of-freedom dynamic posture simulation function, comprising a mounting base plate, a translation module, a pitch module, a rotation module and a ball head bracket; like Figure 2 As shown, the translation module is arranged on the mounting base plate, and comprises a translation plate, first to second guide rails, first to fourth sliders, a translation motor, a first active pulley, a first passive pulley, a first synchronous belt, a mounting seat, a pressure plate and a displacement sensor; The first guide rail and the second guide rail are arranged in parallel on the mounting base plate; The first slider and the second slider are arranged on the first guide rail and can slide freely; the third slider and the fourth slider are arranged on the second guide rail and can slide freely; The translation plate is respectively fixedly connected to the first to fourth sliding blocks, and can slide freely along the first guide rail and the second guide rail relative to the mounting base plate; The translation motor is fixed on the mounting base plate, and its output shaft is coaxially fixedly connected with the first driving pulley; The first passive pulley is arranged on the mounting base through a mounting seat and can rotate freely; The first synchronous belt cooperates with the first active pulley and the first passive pulley respectively, so that the first active pulley can drive the first passive pulley to rotate; and the first synchronous belt is parallel to the first guide rail; The pressing plate is arranged on the end surface of the translation plate close to the mounting base plate, and is used to clamp a part of the first synchronous belt between the pressing plate and the translation plate, so that the translation plate can slide along the first guide rail following the synchronous belt; The displacement sensor is arranged on the mounting base plate and is used to measure the displacement between the translation plate and the mounting base plate; like Figure 3As shown, the pitch module includes first to second mounting side plates, first to second bearings, first to second rotating shafts, first to second rocker arms, a pitch plate, a pitch motor, a second active pulley, a second passive pulley, a second synchronous belt and a first angle sensor; The first and second mounting side plates are arranged in parallel and the lower ends are vertically fixedly connected to the translation plate, and the upper ends are provided with mounting through holes; The first bearing is arranged in the mounting through hole of the first mounting side plate, and the outer ring is coaxially fixedly connected with the mounting through hole of the first mounting side plate; the second bearing is arranged in the mounting through hole of the second mounting side plate, and the outer ring is coaxially fixedly connected with the mounting through hole of the second mounting side plate; The first rocker arm and the second rocker arm have the same structure, are arranged in parallel, and the lower ends thereof are respectively vertically fixedly connected to the two ends of the pitch plate; One end of the first rotating shaft is vertically fixedly connected to the upper end of the first rocker arm, and the other end passes through the inner ring of the first bearing and is coaxially fixedly connected to the inner ring of the first bearing; one end of the second rotating shaft is vertically fixedly connected to the upper end of the second rocker arm, and the other end passes through the inner ring of the second bearing and is coaxially fixedly connected to the inner ring of the second bearing; the first and second rotating shafts are coaxial, so that the pitch plate is located between the first and second mounting side plates and can rotate freely around the first and second rotating shafts; The second driven pulley is a hollow pulley, which is sleeved on the second rotating shaft and coaxially fixedly connected with the second rotating shaft; The pitch motor is arranged on the second mounting side plate, and the output shaft of the pitch motor is coaxially fixedly connected with the second driving pulley; The second synchronous belt cooperates with the second active pulley and the second passive pulley respectively, so that the pitch motor can drive the second rotation axis to rotate and then drive the pitch plate to rotate around the second rotation axis; The first angle sensor is arranged on the first rotating shaft and is used to measure the rotation angle of the first rotating shaft relative to the first mounting side plate; The ball head bracket comprises a fixing ring, a first fixing plate and a second fixing plate, wherein the fixing ring is in a circular ring shape and has a plurality of through holes uniformly arranged circumferentially thereon for fixing the ball head of the fuel compensator and its corresponding pipeline flange; one end of the first fixing plate is connected to the outer wall of the fixing ring and is coplanar with the fixing ring, and the other end is vertically fixedly connected to one end of the second fixing plate; The rotating module comprises a rotating motor, a third rotating shaft, a third bearing, a third driving pulley, a third passive pulley, a third synchronous belt and a second angle sensor; A mounting through hole for mounting the third bearing is provided at the center of the pitch plate; The third bearing is arranged in the mounting through hole of the pitch plate, and the outer ring and the mounting through hole of the pitch plate are coaxially fixedly connected; The third rotating shaft passes through the inner ring of the third bearing and is coaxially fixedly connected to the inner ring of the third bearing, and its upper end is vertically fixedly connected to the second fixing plate; the axis of the third rotating shaft and the axis of the first rotating shaft are vertically intersected; The third driven pulley is a hollow pulley, which is sleeved on the third rotating shaft and is coaxially fixedly connected to the third rotating shaft; The rotating motor is arranged on the pitching plate, and its output shaft is coaxially fixedly connected with the third driving pulley; The third synchronous belt cooperates with the third active pulley and the third passive pulley respectively, so that the rotary motor can drive the third rotary shaft to rotate; The second angle sensor is arranged on the third rotation axis, and is used to measure the rotation angle of the third rotation axis relative to the pitch plate.
[0015] The translation module simulates the axial translation of the upper and lower shells of the fuel compensator; the pitch module and the rotation module simulate the pitch and yaw rotation of the compensator ball head respectively. After the ball head bracket is connected to the compensator ball head, it can simulate the pitch and yaw rotation of the compensator ball head at the same time, while keeping the upper and lower shells of the compensator always horizontal, and providing a larger rotation space for the compensator ball head to avoid interference with the upper and lower shells when the ball head rotates. Figure 4 The diagram is a structural explosion diagram in which the upstream and downstream ball heads of the fuel compensator are matched with the ball head bracket of the present invention. The fuel compensator can also be adjusted by using the ball head bracket of the present invention only at the ball head at one end.
[0016] The synchronous belt transmission structure of the present invention is simple, the transmission is smooth, and long-distance transmission can be achieved within a certain range, making the tooling structure compact and stable; at the same time, the synchronous belt transmission does not have self-locking properties, and the degree of freedom of the stepping motor is not restricted by the synchronous belt after the power is off; when the upstream and downstream fluid pressure fluctuations cause compensator compensation, the positions of the upper and lower shells can be fed back in real time to test the response performance of the compensator when the upstream and downstream fluid pressures change, so the synchronous belt transmission is superior to the screw transmission in this regard.
[0017] A reinforcing rib is preferably provided at the connection between the first fixing plate and the second fixing plate to improve the rigidity of the ball head bracket.
[0018] The displacement sensor adopts a pull-rope sensor, whose housing is fixed on the mounting base plate, the measuring rope head is fixedly connected to the translation plate, and the measuring rope is parallel to the first guide rail and coplanar with the translation plate.
[0019] The first angle sensor and the second angle sensor both use absolute encoders, wherein the input blind hole of the first angle sensor is coaxially fixedly connected to the first rotating shaft through a first coupling, and the shell of the first angle sensor is fixedly connected to the first mounting side plate; the input blind hole of the second angle sensor is coaxially fixedly connected to the third rotating shaft through a second coupling, and the shell of the second angle sensor is fixedly connected to the pitch plate.
[0020] The present invention may further include a first limit zeroing module and a second limit zeroing module; The first limit zeroing module and the second limit zeroing module both comprise a zeroing cylinder, a rotating rod and a limit ring; The zero return cylinder comprises a cylinder body, a spring and a ball; the cylinder body is a hollow cylinder, one end of which is closed and the other end of which is provided with a through hole in the center; the spring and the ball are both arranged in the cylinder body, one end of the spring is fixedly connected to the closed end of the cylinder body, and the other end of the spring is fixedly connected to the ball, in a compressed state, so that the ball and the through hole on the cylinder body are against each other and a part of the ball is exposed from the through hole of the cylinder body; The closed end of the zero return cylinder is vertically fixedly connected to one end of the rotating rod; a through hole is provided at the center of the rotating rod; The limiting ring is in the shape of a ring, and comprises an inner wall, an A end face, an outer wall, and a B end face which are connected in sequence, and the A end face is provided with a stopper rod which is vertically fixed thereto, and the A end face is also provided with a concave hole which matches the sphere; like Figure 5 As shown, the first position limiting zeroing module is arranged between the first angle sensor and the first mounting side plate, wherein the limiting ring of the first position limiting zeroing module is fixed on the first mounting side plate, the radius of which is larger than the mounting through hole on the first mounting side plate and is coaxial with the mounting through hole on the first mounting side plate; the rotating rod of the first position limiting zeroing module is coaxially fixedly connected with the first coupling through the through hole at its center, the ball on the zeroing cylinder of the first position limiting zeroing module and the A end face of its limiting ring are abutted, and when the concave hole on the limiting ring of the first position limiting zeroing module and the ball on the zeroing cylinder thereof cooperate, the first angle sensor is in a zeroing state; the blocking rod on the limiting ring of the first position limiting zeroing module is used to cooperate with its rotating rod to limit the rotation angle of the first coupling; The second position limit zeroing module is arranged between the second angle sensor and the pitch plate, wherein the position limit ring of the second position limit zeroing module is fixed on the pitch plate, has a radius larger than the mounting through hole on the pitch plate and is coaxial with the mounting through hole on the pitch plate; the rotating rod of the second position limit zeroing module is coaxially fixedly connected with the second coupling through the through hole at its center, the ball on the zeroing cylinder of the second position limit zeroing module and the A end face of its position limit ring are abutted, and when the concave hole on the position limit ring of the second position limit zeroing module and the ball on the zeroing cylinder are matched, the second angle sensor is in a zeroing state; the blocking rod on the position limit ring of the second position limit zeroing module is used to cooperate with its rotating rod to limit the rotation angle of the second coupling.
[0021] Two zeroing cylinders can be provided in the first limit zeroing module and the second limit zeroing module, symmetrically arranged at both ends of the rotating rod, and two concave holes on the limit ring are also correspondingly arranged, so that the resistance is more obvious when returning to zero.
[0022] When the present invention is connected to the ball head of the fuel compensator, a ball head bracket of appropriate size should be used so that the center of the ball head of the fuel compensator is located at the intersection of the axis of the third rotating shaft and the axis of the first rotating shaft.
[0023] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.
[0024] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A special tooling for fuel compensator with multi-degree-of-freedom dynamic posture simulation function, characterized in that: It includes a mounting base plate, a translation module, a pitch module, a rotation module and a ball head bracket; The translation module is arranged on the mounting base plate, and comprises a translation plate, first to second guide rails, first to fourth sliders, a translation motor, a first driving pulley, a first passive pulley, a first synchronous belt, a mounting seat, a pressure plate and a displacement sensor; The first guide rail and the second guide rail are arranged in parallel on the mounting base plate; The first slider and the second slider are arranged on the first guide rail and can slide freely; The third slider and the fourth slider are arranged on the second guide rail and can slide freely; The translation plate is respectively fixedly connected to the first to fourth sliding blocks, and can slide freely along the first guide rail and the second guide rail relative to the mounting base plate; The translation motor is fixed on the mounting base plate, and its output shaft is coaxially fixedly connected with the first driving pulley; The first passive pulley is arranged on the mounting base through a mounting seat and can rotate freely; The first synchronous belt cooperates with the first active pulley and the first passive pulley respectively, so that the first active pulley can drive the first passive pulley to rotate; and the first synchronous belt is parallel to the first guide rail; The pressing plate is arranged on the end surface of the translation plate close to the mounting base plate, and is used to clamp a part of the first synchronous belt between the pressing plate and the translation plate, so that the translation plate can slide along the first guide rail following the synchronous belt; The displacement sensor is arranged on the mounting base plate and is used to measure the displacement between the translation plate and the mounting base plate; The pitch module comprises first to second mounting side plates, first to second bearings, first to second rotating shafts, first to second rocker arms, a pitch plate, a pitch motor, a second driving pulley, a second passive pulley, a second synchronous belt and a first angle sensor; The first and second mounting side plates are arranged in parallel and the lower ends are vertically fixedly connected to the translation plate, and the upper ends are provided with mounting through holes; The first bearing is arranged in the mounting through hole of the first mounting side plate, and the outer ring is coaxially fixedly connected with the mounting through hole of the first mounting side plate; the second bearing is arranged in the mounting through hole of the second mounting side plate, and the outer ring is coaxially fixedly connected with the mounting through hole of the second mounting side plate; The first rocker arm and the second rocker arm have the same structure, are arranged in parallel, and the lower ends thereof are respectively vertically fixedly connected to the two ends of the pitch plate; One end of the first rotating shaft is vertically fixedly connected to the upper end of the first rocker arm, and the other end passes through the inner ring of the first bearing and is coaxially fixedly connected to the inner ring of the first bearing; one end of the second rotating shaft is vertically fixedly connected to the upper end of the second rocker arm, and the other end passes through the inner ring of the second bearing and is coaxially fixedly connected to the inner ring of the second bearing; the first and second rotating shafts are coaxial, so that the pitch plate is located between the first and second mounting side plates and can rotate freely around the first and second rotating shafts; The second driven pulley is a hollow pulley, which is sleeved on the second rotating shaft and coaxially fixedly connected with the second rotating shaft; The pitch motor is arranged on the second mounting side plate, and the output shaft of the pitch motor is coaxially fixedly connected with the second driving pulley; The second synchronous belt cooperates with the second active pulley and the second passive pulley respectively, so that the pitch motor can drive the second rotation axis to rotate and then drive the pitch plate to rotate around the second rotation axis; The first angle sensor is arranged on the first rotating shaft and is used to measure the rotation angle of the first rotating shaft relative to the first mounting side plate; The ball head bracket comprises a fixing ring, a first fixing plate and a second fixing plate, wherein the fixing ring is in a circular ring shape and has a plurality of through holes uniformly arranged circumferentially thereon for fixing the ball head of the fuel compensator and its corresponding pipeline flange; one end of the first fixing plate is connected to the outer wall of the fixing ring and is coplanar with the fixing ring, and the other end is vertically fixedly connected to one end of the second fixing plate; The rotating module comprises a rotating motor, a third rotating shaft, a third bearing, a third driving pulley, a third passive pulley, a third synchronous belt and a second angle sensor; A mounting through hole for mounting the third bearing is provided at the center of the pitch plate; The third bearing is arranged in the mounting through hole of the pitch plate, and the outer ring and the mounting through hole of the pitch plate are coaxially fixedly connected; The third rotating shaft passes through the inner ring of the third bearing and is coaxially fixedly connected to the inner ring of the third bearing, and its upper end is vertically fixedly connected to the second fixing plate; the axis of the third rotating shaft and the axis of the first rotating shaft are vertically intersected; The third driven pulley is a hollow pulley, which is sleeved on the third rotating shaft and is coaxially fixedly connected to the third rotating shaft; The rotating motor is arranged on the pitching plate, and its output shaft is coaxially fixedly connected with the third driving pulley; The third synchronous belt cooperates with the third active pulley and the third passive pulley respectively, so that the rotary motor can drive the third rotary shaft to rotate; The second angle sensor is arranged on the third rotation axis, and is used to measure the rotation angle of the third rotation axis relative to the pitch plate.
2. The fuel compensator special tooling with multi-degree-of-freedom dynamic posture simulation function according to claim 1 is characterized in that: A reinforcing rib is provided at the connection between the first fixing plate and the second fixing plate to improve the rigidity of the ball head bracket.
3. The fuel compensator special tooling with multi-degree-of-freedom dynamic posture simulation function according to claim 1 is characterized in that: The displacement sensor adopts a pull-rope sensor, whose housing is fixed on the mounting base plate, the measuring rope head is fixedly connected to the translation plate, and the measuring rope is parallel to the first guide rail and coplanar with the translation plate.
4. The fuel compensator special tooling with multi-degree-of-freedom dynamic posture simulation function according to claim 1 is characterized in that: The first angle sensor and the second angle sensor both use absolute encoders, wherein the input blind hole of the first angle sensor is coaxially fixedly connected to the first rotating shaft through a first coupling, and the shell of the first angle sensor is fixedly connected to the first mounting side plate; the input blind hole of the second angle sensor is coaxially fixedly connected to the third rotating shaft through a second coupling, and the shell of the second angle sensor is fixedly connected to the pitch plate.
5. The special tooling for fuel compensator with multi-DOF dynamic posture simulation function according to claim 4 is characterized in that: It also includes a first limit zeroing module and a second limit zeroing module; The first limit zeroing module and the second limit zeroing module both comprise a zeroing cylinder, a rotating rod and a limit ring; The zero return cylinder comprises a cylinder body, a spring and a ball; the cylinder body is a hollow cylinder, one end of which is closed and the other end of which is provided with a through hole in the center; the spring and the ball are both arranged in the cylinder body, one end of the spring is fixedly connected to the closed end of the cylinder body, and the other end of the spring is fixedly connected to the ball, in a compressed state, so that the ball and the through hole on the cylinder body are against each other and a part of the ball is exposed from the through hole of the cylinder body; The closed end of the zero return cylinder is vertically fixedly connected to one end of the rotating rod; a through hole is provided at the center of the rotating rod; The limiting ring is in the shape of a ring, and comprises an inner wall, an A end face, an outer wall, and a B end face which are connected in sequence, and the A end face is provided with a stopper rod which is vertically fixed thereto, and the A end face is also provided with a concave hole which matches the sphere; The first position limiting zeroing module is arranged between the first angle sensor and the first mounting side plate, wherein the position limiting ring of the first position limiting zeroing module is fixed on the first mounting side plate, the radius of which is larger than the mounting through hole on the first mounting side plate and is coaxial with the mounting through hole on the first mounting side plate; the rotating rod of the first position limiting zeroing module is coaxially fixedly connected with the first coupling through the through hole at its center, the ball on the zeroing cylinder of the first position limiting zeroing module and the A end face of its position limiting ring are abutted, and when the concave hole on the position limiting ring of the first position limiting zeroing module and the ball on the zeroing cylinder thereof cooperate, the first angle sensor is in a zeroing state; the blocking rod on the position limiting ring of the first position limiting zeroing module is used to cooperate with its rotating rod to limit the rotation angle of the first coupling; The second position limit zeroing module is arranged between the second angle sensor and the pitch plate, wherein the position limit ring of the second position limit zeroing module is fixed on the pitch plate, has a radius larger than the mounting through hole on the pitch plate and is coaxial with the mounting through hole on the pitch plate; the rotating rod of the second position limit zeroing module is coaxially fixedly connected with the second coupling through the through hole at its center, the ball on the zeroing cylinder of the second position limit zeroing module and the A end face of its position limit ring are abutted, and when the concave hole on the position limit ring of the second position limit zeroing module and the ball on the zeroing cylinder are matched, the second angle sensor is in a zeroing state; the blocking rod on the position limit ring of the second position limit zeroing module is used to cooperate with its rotating rod to limit the rotation angle of the second coupling.