CN212844297U - Modular power assembly test system - Google Patents
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- CN212844297U CN212844297U CN202020594840.6U CN202020594840U CN212844297U CN 212844297 U CN212844297 U CN 212844297U CN 202020594840 U CN202020594840 U CN 202020594840U CN 212844297 U CN212844297 U CN 212844297U
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Abstract
The utility model relates to an engineering machine tool power assembly equipment technical field especially relates to a modularization power assembly test system. According to different power system assembly test requirements and field test environmental conditions, the system adopts the following test modules to carry out structure and position combination, and comprises the following steps: an engine power module; the module is used as a power source of a tested power system and can be installed and matched with different engines to ensure the normal work of the tested power system; and/or, one or more linear motion servo loading modules; the module is used for simulating and dynamically loading the linear motion in the module; and/or, one or more slewing motion servo loading modules; the module is used for simulating and dynamically loading the rotary motion in the module; and, a servo oil source module; the module is used for providing constant-pressure servo control oil sources for the servo loading modules. The whole modularized power assembly test system greatly improves the test function and efficiency of the test bed.
Description
Technical Field
The utility model relates to an engineering machine tool assembly equipment technical field especially relates to a modularization power assembly test system.
Background
The work load of the engineering machinery is a dynamic random process, and the load change in the working procedure is severe and the period is short. The traditional transmission system is mostly designed according to the static parameter matching theory, the matching performance of the system cannot be fully exerted, the efficiency and the fuel economy of the system cannot be optimal, and the applicability of components such as an engine, a hydraulic system, a hydraulic element and the like cannot be fully verified. If a research method of actual prototype test analysis is adopted, high cost is needed, influence factors are more, configuration parameters and control strategies are difficult to change, the test period is too long, and the reproducibility and consistency of test data are poor; and by adopting the hydraulic proportional loading control technology, the dynamic response of the loading control is poor, so that the load change process under the actual working condition cannot be well reproduced, and the test error is larger. In addition, the whole power assembly test system is high in technical difficulty, poor in universality and long in design and manufacture period, and different test requirements are difficult to meet quickly.
SUMMERY OF THE UTILITY MODEL
The utility model provides a modularization power assembly test system for solving the technical problem that exists among the well-known technique.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a modular powertrain testing system, comprising:
an engine power module; the module is used as a power source of a tested power system and can be installed and matched with different engines to ensure the normal work of the tested power system;
and/or, one or more linear motion servo loading modules; the module is used for simulating and dynamically loading the linear motion mode in the module;
and/or, one or more slewing motion servo loading modules; the module is used for simulating the rotary motion mode in the module and dynamically loading;
and, a servo oil source module; the module is used for providing a constant-pressure servo control oil source for the servo loading modules; according to different power system assembly test requirements and field test environmental conditions, the modular power assembly test system can adopt the following different test modules for structure and position combination; the method specifically comprises the following steps:
when the modularized power assembly test system is a full hydraulic central drive walking test system: selecting an engine power module, a rotary motion servo loading module and a servo oil source module, and connecting hydraulic pipelines corresponding to the modules to form a full-hydraulic tractor transmission system;
when the modularized power assembly test system is a full hydraulic double-wheel drive test system: selecting an engine power module, two rotary motion servo loading modules and a servo oil source module, and connecting hydraulic pipelines corresponding to the modules to form a full-hydraulic bulldozer transmission system;
when the modular powertrain testing system is a hybrid transmission testing system: an engine power module, three linear motion servo loading modules, a rotary motion servo loading module and a servo oil source module are selected, and hydraulic pipelines corresponding to the modules are connected to form a hydraulic excavator transmission system.
Further, the engine power module at least comprises an engine mounting structure, a fuel consumption meter for ensuring normal operation of the engine, a fuel temperature control system, an intercooling system, a water cooling system and a silencing and smoke exhausting structure; the engine mounting structure comprises a mounting platform, engine supporting legs, an engine, a flywheel connecting seat, a first transmission shaft, a torque and rotation speed sensor, a hydraulic pump mounting seat and a tested hydraulic pump; the engine is fixed on the mounting platform through the engine supporting legs; the flywheel connecting base is connected with one end of the first transmission shaft through a flywheel of the engine; the hydraulic pump mounting seat is fixed on one side where the output end of the engine is located; the tested hydraulic pump is fixed on the hydraulic pump mounting seat; the torque and speed sensor is connected between the first transmission shaft and the hydraulic pump mounting seat, so that the flywheel mounting seat can output power to the hydraulic pump mounting seat through the flywheel of the engine through the first transmission shaft and the torque and speed sensor in sequence, and the tested hydraulic pump is driven to work.
Further, the linear motion servo loading structure comprises a cylinder body fixing structure, a tested hydraulic cylinder and a servo hydraulic cylinder; the tested hydraulic cylinder and the servo hydraulic cylinder are coaxially arranged on the cylinder body fixing structure, and the tested hydraulic cylinder and the servo hydraulic cylinder can linearly reciprocate along the axial direction.
Further, the cylinder body fixing structure comprises a cylinder barrel mounting seat, a hydraulic cylinder mounting frame, a cylinder barrel support, a support guide rail, a cylinder rod mounting seat, a tension and compression sensor and a servo cylinder mounting seat;
the cylinder barrel mounting seat, the cylinder barrel support and the servo cylinder mounting seat are respectively connected to the hydraulic cylinder mounting frame at certain intervals along the axial direction of the tested hydraulic cylinder; the servo cylinder mounting frame is arranged at one end, far away from the cylinder barrel mounting seat, of the hydraulic cylinder mounting frame; the supporting guide rail is connected between the servo cylinder mounting seat and the cylinder barrel support along the axial direction of the tested hydraulic cylinder; the cylinder rod mounting seat is connected with the support guide rail in a sliding manner so as to ensure that the cylinder rod mounting seat moves linearly along the axial direction of the tested hydraulic cylinder; the tested hydraulic cylinder comprises a cylinder barrel pin shaft, a cylinder barrel and a cylinder rod pin shaft; the cylinder barrel pin shaft is connected with the cylinder barrel support, the cylinder barrel is connected with the hydraulic cylinder mounting frame, and the cylinder rod pin shaft is connected with the servo hydraulic cylinder sequentially through the cylinder rod mounting seat and the tension and compression sensor; the tested hydraulic cylinder and the servo hydraulic cylinder are coaxially arranged, and a cylinder rod pin shaft of the tested hydraulic cylinder is connected with the servo hydraulic cylinder through a cylinder rod mounting seat and a tension and compression sensor; the servo hydraulic cylinder is fixed with the hydraulic cylinder mounting frame through the servo cylinder mounting seat; a servo valve group and a displacement sensor are arranged on the servo hydraulic cylinder; one side of the servo valve group is provided with an energy accumulator group.
Further, the slewing motion servo loading module comprises a servo control valve bank, an energy accumulator group and a slewing motion servo loading structure; the rotary motion servo loading structure mainly comprises a motor mounting frame; the motor mounting frame is provided with a servo loading motor, a coupler, a torque tachometer, a second transmission shaft, a bearing seat, a shaft sleeve and a mounting flange; the output shaft of the servo loading motor, the coupler and the torque tachometer are sequentially and coaxially connected with the second transmission shaft, and the bearing seat is arranged on one side of the motor mounting frame, which is opposite to the second transmission shaft; the tested motor is fixed on the bearing seat through a mounting flange; and a shaft sleeve is arranged in the bearing seat, one end of the shaft sleeve is connected with an output shaft of the tested motor, and the other end of the shaft sleeve is connected with a second transmission shaft.
Furthermore, the servo oil source module comprises more than one modularized hydraulic station, a high-pressure oil outlet pipe, a low-pressure oil return pipe, a high-pressure main oil supply pipe, a low-pressure main oil return pipe and a module connecting oil pipe; a plurality of modular hydraulic stations in the system are arranged according to the field environment, and adjacent modular hydraulic stations are connected with oil pipes in series through modules; the high-pressure oil source is converged into high-flow high-pressure oil for equipment to use in a high-pressure main oil supply pipe through a high-pressure oil outlet pipe, and the used high-flow low-pressure return oil is divided into a plurality of small return oils through a low-pressure main oil return pipe and flows back to each module hydraulic oil tank for cyclic utilization.
Furthermore, each modular hydraulic station mainly comprises a chassis, and a hydraulic oil tank and a hydraulic motor are arranged on the chassis side by side; the hydraulic oil tank is provided with an oil outlet, a pressure oil supply port and an oil return port; an oil suction port butterfly valve, a hydraulic pump, a pipeline filter and a pressure regulating valve group are sequentially connected between the oil outlet and the pressure oil supply port, the hydraulic pump is connected with the hydraulic motor, hydraulic oil in the hydraulic oil tank flows into the hydraulic pump through the oil suction port butterfly valve, the hydraulic motor drives the hydraulic pump to pressurize the hydraulic oil into high-pressure oil, and the high-pressure oil enters the pressure regulating valve group after being filtered by the pipeline filter; the pressure regulating valve group comprises a high-pressure port and an overflow port, wherein the high-pressure port serves as a pressure oil supply port, the overflow port is connected with one end of the radiator II after being converged with a pipeline where the oil return port is located, and the other end of the radiator II is communicated with the oil return filter.
Furthermore, the hydraulic oil tank is provided with a communication oil port, the plurality of modular hydraulic stations are arranged according to the field environment, and the adjacent modular hydraulic stations are connected with the communication oil port of each modular hydraulic station in series through the module connecting oil pipe according to the arrangement distance.
Furthermore, the system also comprises a circulating oil pipe, a circulating motor, a circulating hydraulic pump, a radiator I and an auxiliary oil return port; one end of the circulating hydraulic pump is connected with a circulating motor, the other end of the circulating hydraulic pump is connected with a radiator I, and the radiator I is connected with an auxiliary oil return port in the upper portion of another hydraulic oil tank through a circulating oil pipe.
The utility model has the advantages and positive effects that:
1. the utility model discloses to typical engineering machine tool power assembly's form, fall into whole power assembly test system into by engine power module, the servo loading module of linear motion, the servo loading module of rotary motion, servo oil source module four big modular structure, can carry out various nimble modularization combinations according to the experimental needs of power system assembly of difference and field test environmental condition, select different test module.
2. Aiming at two main working driving forms of a hydraulic cylinder and a hydraulic motor of engineering machinery, two typical loading modules of a linear motion servo loading module and a rotary motion servo loading module are designed, each module is designed into a form with simple integral structure, relatively independent function and convenient replacement, the combination is convenient, the universality is strong, and the design and manufacturing difficulty and the processing and manufacturing period are reduced.
3. Aiming at the characteristics of high response and dynamic random variation of the working load of the engineering machinery, a hydraulic servo loading control mode is adopted to load a working device of the engineering machinery power assembly, so that the dynamic loading and control of two typical motions of an engineering machinery oil cylinder and a motor are realized, the typical working condition of the engineering machinery power assembly is well simulated, the power assembly matching and related technical research are realized, and the blank of a dynamic matching technical research means of the power assembly is filled.
4. Aiming at power assembly systems with different powers, flow requirements of a servo oil source system are different; by adopting the design of the modularized combined distributed hydraulic oil source system, the universality of the servo oil source system can be effectively improved.
5. Aiming at the requirements of various engine driving systems, the engine power module can provide installation conditions for different engines and guarantee the normal work of the engines;
description of the drawings:
FIG. 1 is a schematic view of an engine mounting structure of the present invention;
FIG. 2 is a schematic diagram of a linear motion servo loading structure of the present invention;
FIG. 3 is a schematic diagram of a servo loading structure for the middle revolving motion of the present invention;
FIG. 4 is a top view of the distributed hydraulic oil supply system of the present invention;
FIG. 5 is an elevation view of a modular hydraulic station of the present invention;
fig. 6 is a top view of fig. 5.
Wherein: 11. mounting a platform; 12. an engine leg; 13. an engine; 14. a flywheel connecting seat; 15. a first drive shaft; 16. a torque speed sensor; 17. a hydraulic pump mounting base; 18. a tested hydraulic pump; 19. a support;
21. a cylinder barrel mounting seat; 22. a hydraulic cylinder mounting frame; 23. a tested hydraulic cylinder; 24. a cylinder barrel support; 25. supporting the guide rail; 26. A cylinder rod mounting seat; 27. a tension and compression sensor; 28. a servo cylinder mounting base; 29. a servo hydraulic cylinder; 210. an accumulator bank; 211. A servo valve group; 212. a displacement sensor;
31. a motor mount; 32. a servo loading motor; 33. a coupling; 34. a torque tachometer; 35. a second drive shaft; 36. A bearing seat; 37. a shaft sleeve; 38. installing a flange; 39. a motor under test;
41. a hydraulic station; 41-1, a chassis; 41-2, a hydraulic oil tank; 41-3, a motor support; 41-4, a hydraulic motor; 41-5, a pressure oil supply port; 41-6 and an oil return port; 41-7, a communication oil port; 41-8, an auxiliary oil return port; 41-9 and a radiator II; 41-10 parts of an oil suction port butterfly valve; 41-11, hydraulic pump; 41-12, a pipeline filter; 41-13 parts of pressure regulating valve group, 41-14 parts of pressure regulating valve group and an air filter; 41-15, a temperature sensor; 41-16, an electrical control cabinet; 41-17 and an oil return filter; 42. the module is connected with an oil pipe I; 43. the module is connected with an oil pipe II; 44. a high pressure oil outlet pipe; 45. a low pressure return line; 46. a high pressure main oil supply pipe; 47. a low pressure main return line; 48. a circulating oil pipe; 49. a circulating motor; 410. a circulating hydraulic pump; 411. and a radiator I.
Detailed Description
The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; rather than all embodiments. Based on the embodiment of the utility model; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.
The utility model provides a modularization power assembly test system, this system include engine power module, the servo loading module of linear motion, the servo loading module of rotary motion and servo oil source module. The engine power module is used as a power source of the tested power system and can be used for installing and matching different engines to ensure the normal work of the tested power system; the linear motion servo loading module is mainly used for simulating and dynamically loading linear motion forms of a hydraulic cylinder and the like; the rotary motion servo loading module is mainly used for simulating and dynamically loading rotary motion forms such as a hydraulic motor and the like; the servo oil source module mainly provides a constant-pressure servo control oil source for each servo loading module; the modularized power assembly test system can select one or more different test modules to carry out modularized collocation and combination according to different power system assembly test requirements and field test environmental conditions.
Specifically, the engine power module at least comprises an engine mounting structure, a fuel consumption meter for ensuring normal operation of the engine, a fuel temperature control system, an intercooling system, a water cooling system and a silencing and smoke discharging structure. The engine mounting structure is shown in fig. 1 and mainly comprises a mounting platform 11, an engine supporting leg 12, an engine 13, a flywheel connecting seat 14, a first transmission shaft 15, a torque and rotation speed sensor 16, a hydraulic pump mounting seat 17 and a tested hydraulic pump 18; the engine 13 is fixed on the mounting platform 11 through the engine supporting legs 12, and the engine supporting legs 12 can be adjusted up and down according to different mounting requirements of the engine 13; the flywheel connecting base 14 is sleeved at the rear end of a crankshaft of the engine 13 and is connected with one end of the first transmission shaft 15 through an engine flywheel; the hydraulic pump mounting seat 17 is fixed on one side of the output end of the engine 13 through a support 19 on the mounting platform 11; the tested hydraulic pump 18 is fixed with the spline housing through a mounting flange 38 disc on the hydraulic pump mounting seat 17; the torque rotation speed sensor 16 is connected between the first transmission shaft 15 and the hydraulic pump mount 17. In this way, the flywheel mounting base can output power to the hydraulic pump mounting base 17 through the flywheel of the engine 13 and the first transmission shaft 15 and the torque and rotation speed sensor 16 in sequence, so as to drive the tested hydraulic pump 18 to work.
The linear motion servo loading structure is shown in fig. 2 and mainly comprises a cylinder body fixing structure, a tested hydraulic cylinder 23 and a servo hydraulic cylinder 29; the cylinder body fixing structure comprises a cylinder barrel mounting seat 21, a hydraulic cylinder mounting frame 22, a cylinder barrel support 24, a support guide rail 25, a cylinder rod mounting seat 26, a tension and compression sensor 27 and a servo cylinder mounting seat 28; the cylinder barrel mounting seat 21, the cylinder barrel support 24 and the servo cylinder mounting seat 28 are connected to the hydraulic cylinder mounting frame 22 at certain intervals respectively;
the cylinder barrel mounting seat 21, the cylinder barrel support 24 and the servo cylinder mounting seat 28 are respectively connected to the hydraulic cylinder mounting frame 22 along the axial direction of the tested hydraulic cylinder 23 at a certain interval; the servo cylinder mounting frame is arranged at one end of the hydraulic cylinder mounting frame 22, which is far away from the cylinder barrel mounting seat 21; the support guide rail 25 is connected between the servo cylinder mounting seat 28 and the cylinder barrel support 24 along the axial direction of the tested hydraulic cylinder 23; the cylinder rod mounting seat 26 is connected with the support guide rail 25 in a sliding manner so as to ensure that the cylinder rod mounting seat 26 moves linearly along the axial direction of the tested hydraulic cylinder 23; the tested hydraulic cylinder 23 comprises a cylinder pin shaft, a cylinder and a cylinder rod pin shaft; the cylinder barrel pin shaft is connected with the cylinder barrel support, the cylinder barrel is connected with the hydraulic cylinder mounting frame 22, and the cylinder rod pin shaft is connected with the servo hydraulic cylinder 29 through the cylinder rod mounting seat 26 and the tension and compression sensor 27 in sequence; the tested hydraulic cylinder 23 and the servo hydraulic cylinder 29 are coaxially arranged, and a cylinder rod pin shaft of the tested hydraulic cylinder 23 is connected with the servo hydraulic cylinder 29 through a cylinder rod mounting seat 26 and a pull-press sensor 27; the servo hydraulic cylinder 29 is fixed with the hydraulic cylinder mounting frame 22 through the servo cylinder mounting seat 28; a servo valve group 211 and a displacement sensor 212 are arranged on the servo hydraulic cylinder 29; in order to ensure the stability of the servo valve control pressure, an accumulator group 210 is designed near the servo valve group 211. The utility model discloses can also satisfy the different 23 installation loading requirements of the hydraulic cylinder 23 of being tested through the round pin axle frock of the position of adjustment cylinder mount pad 21 and the hydraulic cylinder 23 of being tested. It will be seen that the cylinder mount 22 carries the other numerous components of the module, facilitating the overall adjustment and installation of the module.
The rotary motion servo loading module mainly comprises a servo control valve group, an energy accumulator group and a rotary motion servo loading structure; the rotary motion servo loading structure is shown in fig. 3, and mainly comprises a motor mounting frame 31; the motor mounting frame 31 is provided with a servo loading motor 32, a coupler 33, a torque tachometer 34, a second transmission shaft 35, a bearing seat 36, a shaft sleeve 37 and a mounting flange 38; specifically, the output shaft of the servo loading motor 32, the coupler 33, the torque tachometer 34 and the second transmission shaft 35 are coaxially connected in sequence, and the bearing seat 36 is arranged on one side of the motor mounting frame 31, which is opposite to the second transmission shaft 35; the tested motor 39 is fixed on one end of the bearing block 36 opposite to the second transmission shaft 35 through a mounting flange 38; a shaft sleeve 37 is arranged in the bearing seat 36, one end of the shaft sleeve 37 is connected with an output shaft of a tested motor 39, and the other end of the shaft sleeve 37 is connected with the second transmission shaft 35; the tested motor is an actual hydraulic motor used by a power system to be tested, different tested motors need to be replaced according to different power systems, and the servo loading motor is a motor used for loading load simulation to the tested motor and can be fixed without replacement. The module meets the installation requirements of different tested motors 39 by replacing different shaft sleeves 37 and mounting flanges 38, and is convenient to be flexibly matched and assembled with other modules.
The distributed hydraulic oil source system is shown in fig. 4-6, and comprises one or more modular hydraulic stations 41, a high-pressure oil outlet pipe 44, a low-pressure oil return pipe 45, a high-pressure main oil supply pipe 46, a low-pressure main oil return pipe 47, a circulating oil pipe 48, a circulating motor 49, a circulating motor 410 and a radiator i 411. Each modular hydraulic station 41 mainly comprises a chassis 41-1, and a hydraulic oil tank 41-2, a motor support 41-3 and a corresponding hydraulic motor 41-4 are arranged on the chassis 41-1 side by side; the hydraulic oil tank 41-2 is provided with an oil outlet, a pressure oil supply port 41-5, an oil return port 41-6, a communication oil port 41-7 and an auxiliary oil return port 41-8; an oil suction port butterfly valve 41-10, a hydraulic pump 41-11, a pipeline filter 41-12 and a pressure regulating valve group 41-13 are sequentially connected between the oil outlet and the pressure oil supply port 41-5, and the hydraulic pump 41-11 is connected with the hydraulic motor 41-4; therefore, hydraulic oil in the hydraulic oil tank 41-2 flows into the hydraulic pump 41-11 through the oil suction port butterfly valve 41-10, the hydraulic motor 41-4 drives the hydraulic pump 41-11 to pressurize the hydraulic oil into high-pressure oil, the high-pressure oil enters the pressure regulating valve group 41-13 after being filtered by the pipeline filter 41-12, and the high-pressure oil of the pressure regulating valve group 41-13 is subjected to pressure regulation and then is supplied to a system through the pressure oil supply port 41-5; the pressure regulating valve group 41-13 comprises a high-pressure port and an overflow port, wherein the high-pressure port is used as a pressure oil supply port, the overflow port is connected with one end of the radiator II 41-9 after being converged with a pipeline where the oil return port 41-6 is located, the other end of the radiator II 41-9 is communicated with the oil return filter, and therefore overflowing hydraulic oil and low-pressure oil flowing back from the oil return port 41-6 flow through the radiator II 41-9 and the oil return filter 41-17 after being converged and then flow back to the hydraulic oil tank 41-2 through the overflow port.
The upper part of the hydraulic oil tank 41-2 is also provided with an auxiliary oil return port 41-8, an air filter 41-14 and a temperature sensor 41-15. Each modular hydraulic station 41 is provided with an independent electric control cabinet 41-16, and the electric control cabinets 41-16 can independently complete detection and control of control valve groups such as a motor, hydraulic oil temperature, a pressure regulating valve group 41-13, hydraulic oil pressure, hydraulic oil tank 41-2 liquid level, an oil suction port butterfly valve 41-10 and the like; the system is provided with a main electric control device for carrying out centralized control and management on the electric control cabinets 41-16 of all the hydraulic stations 41, and the main electric control device is convenient to manage and control in a communication mode.
A plurality of modular hydraulic stations 41 in the system are arranged according to the field environment, and according to the arrangement distance, the adjacent modular hydraulic stations 41 connect the communication oil ports 41-7 of each modular hydraulic station 41 in series through the short module connecting oil pipe I42 or the long module connecting oil pipe II 43, so that the same height of the liquid level of the hydraulic oil tank 41-2 of each modular hydraulic station 41 can be ensured. One end of the high-pressure oil outlet pipe 44 of each modular hydraulic station 41 is connected with the pressure oil supply port 41-5, and the other end of the high-pressure oil outlet pipe is communicated with the high-pressure main oil supply pipe 46; one end of each low-pressure oil return pipe 45 is connected with the oil return port 41-6, and the other end of each low-pressure oil return pipe is communicated with the low-pressure main oil return pipe 47, so that high-pressure oil sources on a plurality of hydraulic stations 41 can be converged into high-flow high-pressure oil on the high-pressure main oil supply pipe 46 for use by equipment, and the used high-flow low-pressure oil return is divided into a plurality of small oil returns through the low-pressure main oil return pipe 47 and flows back to each module hydraulic oil tank 41-2 for recycling. In addition, one end of the circulating motor 410 is connected with a circulating motor 49, the other end of the circulating motor 410 is connected with a radiator I411, the radiator I is connected with an auxiliary oil return port 41-8 in the upper portion of another hydraulic oil tank 41-2 through a circulating oil pipe, and therefore the circulating motor 49 drives the circulating motor 410 to output hydraulic oil in one hydraulic oil tank 41-2 to the radiator I411, the hydraulic oil flows into another hydraulic station after being radiated by the radiator I411, and therefore the uniformity of the circulation and the oil temperature of the hydraulic oil of the whole distributed hydraulic oil source system is facilitated.
A modularized power assembly test system can select different test modules to carry out various flexible modularized combinations according to different power system assembly test requirements and field test environmental conditions. Examples are as follows:
1. full-hydraulic central drive walking test system
Selecting an engine power module, a rotary motion servo loading module and a servo oil source module, and connecting hydraulic pipelines corresponding to the modules to form a full-hydraulic tractor transmission system; the engine of the engine power module drives a hydraulic pump, the hydraulic pump drives a tested hydraulic motor of the rotary motion servo module, and the servo loading motor controls and loads the torque and the rotating speed of the tested motor by using a high-pressure servo oil source of the servo oil source module.
2. Full-hydraulic double-wheel drive test system
An engine power module, two rotary motion servo loading modules and a servo oil source module are selected, and hydraulic pipelines corresponding to the modules are connected to form a full-hydraulic bulldozer transmission system. The engine of the engine power module drives two hydraulic pumps which drive tested hydraulic motors of two rotary motion servo modules, and the servo loading motor controls and loads the torque and the rotating speed of the tested motors by using a high-pressure servo oil source of the servo oil source module.
3. Hybrid transmission test system
An engine power module, three linear motion servo loading modules, a rotary motion servo loading module and a servo oil source module are selected, and hydraulic pipelines corresponding to the modules are connected to form a hydraulic excavator transmission system. The engine of the engine power module drives a hydraulic pump, the hydraulic pump drives tested oil cylinders of three linear motion servo loading modules and a tested motor of a rotary motion servo module through a multi-way reversing valve, the servo loading oil cylinder controls and loads the speed and the pull pressure of the tested oil cylinder by using a high-pressure servo oil source of a servo oil source module, and the servo loading motor controls and loads the torque and the rotating speed of the tested motor by using the high-pressure servo oil source of the servo oil source module.
The whole modularized power assembly test system greatly improves the test function and the test efficiency of the test bed.
The embodiments of the present invention have been described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (9)
1. A modular powertrain testing system, comprising:
an engine power module; the module is used as a power source of a tested power system and can be installed and matched with different engines to ensure the normal work of the tested power system;
and/or, one or more linear motion servo loading modules; the module is used for simulating and dynamically loading the linear motion mode in the module;
and/or, one or more slewing motion servo loading modules; the module is used for simulating and dynamically loading the rotary motion mode in the module;
and, a servo oil source module; the module is used for providing a constant-pressure servo control oil source for the servo loading modules;
according to different power system assembly test requirements and field test environmental conditions, the modular power assembly test system can adopt the following different test modules for structure and position combination; the method specifically comprises the following steps:
when the modularized power assembly test system is a full hydraulic central drive walking test system: selecting an engine power module, a rotary motion servo loading module and a servo oil source module, and connecting hydraulic pipelines corresponding to the modules to form a full-hydraulic tractor transmission system;
when the modularized power assembly test system is a full hydraulic double-wheel drive test system: selecting an engine power module, two rotary motion servo loading modules and a servo oil source module, and connecting hydraulic pipelines corresponding to the modules to form a full-hydraulic bulldozer transmission system;
when the modular powertrain testing system is a hybrid transmission testing system: an engine power module, three linear motion servo loading modules, a rotary motion servo loading module and a servo oil source module are selected, and hydraulic pipelines corresponding to the modules are connected to form a hydraulic excavator transmission system.
2. The modular powertrain testing system of claim 1, wherein: the engine power module at least comprises an engine mounting structure, a fuel consumption meter for ensuring normal operation of the engine, a fuel temperature control system, an intercooling system, a water cooling system and a silencing and smoke discharging structure; the engine mounting structure comprises a mounting platform, engine supporting legs, an engine, a flywheel connecting seat, a first transmission shaft, a torque and rotation speed sensor, a hydraulic pump mounting seat and a tested hydraulic pump; the engine is fixed on the mounting platform through the engine supporting legs; the flywheel connecting base is connected with one end of the first transmission shaft through a flywheel of the engine; the hydraulic pump mounting seat is fixed on one side where the output end of the engine is located; the tested hydraulic pump is fixed on the hydraulic pump mounting seat; the torque and speed sensor is connected between the first transmission shaft and the hydraulic pump mounting seat, so that the flywheel mounting seat can output power to the hydraulic pump mounting seat through the flywheel of the engine through the first transmission shaft and the torque and speed sensor in sequence, and the tested hydraulic pump is driven to work.
3. The modular powertrain testing system of claim 1, wherein: the linear motion servo loading structure comprises a cylinder body fixing structure, a tested hydraulic cylinder and a servo hydraulic cylinder; the tested hydraulic cylinder and the servo hydraulic cylinder are coaxially arranged on the cylinder body fixing structure, and the tested hydraulic cylinder and the servo hydraulic cylinder can linearly reciprocate along the axial direction.
4. The modular powertrain testing system of claim 3, wherein: the cylinder body fixing structure comprises a cylinder barrel mounting seat, a hydraulic cylinder mounting frame, a cylinder barrel support, a support guide rail, a cylinder rod mounting seat, a tension and compression sensor and a servo cylinder mounting seat;
the cylinder barrel mounting seat, the cylinder barrel support and the servo cylinder mounting seat are respectively connected to the hydraulic cylinder mounting frame at certain intervals along the axial direction of the tested hydraulic cylinder; the servo cylinder mounting frame is arranged at one end, far away from the cylinder barrel mounting seat, of the hydraulic cylinder mounting frame; the supporting guide rail is connected between the servo cylinder mounting seat and the cylinder barrel support along the axial direction of the tested hydraulic cylinder; the cylinder rod mounting seat is connected with the support guide rail in a sliding manner so as to ensure that the cylinder rod mounting seat moves linearly along the axial direction of the tested hydraulic cylinder; the tested hydraulic cylinder comprises a cylinder barrel pin shaft, a cylinder barrel and a cylinder rod pin shaft; the cylinder barrel pin shaft is connected with the cylinder barrel support, the cylinder barrel is connected with the hydraulic cylinder mounting frame, and the cylinder rod pin shaft is connected with the servo hydraulic cylinder sequentially through the cylinder rod mounting seat and the tension and compression sensor; the tested hydraulic cylinder and the servo hydraulic cylinder are coaxially arranged, and a cylinder rod pin shaft of the tested hydraulic cylinder is connected with the servo hydraulic cylinder through a cylinder rod mounting seat and a tension and compression sensor; the servo hydraulic cylinder is fixed with the hydraulic cylinder mounting frame through the servo cylinder mounting seat; a servo valve group and a displacement sensor are arranged on the servo hydraulic cylinder; one side of the servo valve group is provided with an energy accumulator group.
5. The modular powertrain testing system of claim 1, wherein: the rotary motion servo loading module comprises a servo control valve group, an energy accumulator group and a rotary motion servo loading structure; the rotary motion servo loading structure mainly comprises a motor mounting frame; the motor mounting frame is provided with a servo loading motor, a coupler, a torque tachometer, a second transmission shaft, a bearing seat, a shaft sleeve and a mounting flange; the output shaft of the servo loading motor, the coupler and the torque tachometer are sequentially and coaxially connected with the second transmission shaft, and the bearing seat is arranged on one side of the motor mounting frame, which is opposite to the second transmission shaft; the tested motor is fixed on the bearing seat through a mounting flange; and a shaft sleeve is arranged in the bearing seat, one end of the shaft sleeve is connected with an output shaft of the tested motor, and the other end of the shaft sleeve is connected with a second transmission shaft.
6. The modular powertrain testing system of claim 1, wherein: the servo oil source module comprises more than one modular hydraulic station, a high-pressure oil outlet pipe, a low-pressure oil return pipe, a high-pressure main oil supply pipe, a low-pressure main oil return pipe and a module connecting oil pipe; a plurality of modular hydraulic stations in the system are arranged according to the field environment, and adjacent modular hydraulic stations are connected with oil pipes in series through modules; the high-pressure oil source is converged into high-flow high-pressure oil for equipment to use in a high-pressure main oil supply pipe through a high-pressure oil outlet pipe, and the used high-flow low-pressure return oil is divided into a plurality of small return oils through a low-pressure main oil return pipe and flows back to each module hydraulic oil tank for cyclic utilization.
7. The modular powertrain testing system of claim 6, wherein: each modular hydraulic station mainly comprises a chassis, and a hydraulic oil tank and a hydraulic motor are arranged on the chassis side by side; the hydraulic oil tank is provided with an oil outlet, a pressure oil supply port and an oil return port; an oil suction port butterfly valve, a hydraulic pump, a pipeline filter and a pressure regulating valve group are sequentially connected between the oil outlet and the pressure oil supply port, the hydraulic pump is connected with the hydraulic motor, hydraulic oil in the hydraulic oil tank flows into the hydraulic pump through the oil suction port butterfly valve, the hydraulic motor drives the hydraulic pump to pressurize the hydraulic oil into high-pressure oil, and the high-pressure oil enters the pressure regulating valve group after being filtered by the pipeline filter; the pressure regulating valve group comprises a high-pressure port and an overflow port, wherein the high-pressure port serves as a pressure oil supply port, the overflow port is connected with one end of the radiator II after being converged with a pipeline where the oil return port is located, and the other end of the radiator II is communicated with the oil return filter.
8. The modular powertrain testing system of claim 7, wherein: the hydraulic oil tank is provided with a communicating oil port, the plurality of modular hydraulic stations are arranged according to the field environment, and the adjacent modular hydraulic stations are connected with the communicating oil port of each modular hydraulic station in series through a module connecting oil pipe according to the arrangement distance.
9. The modular powertrain testing system of claim 8, wherein: the system also comprises a circulating oil pipe, a circulating motor, a circulating hydraulic pump, a radiator I and an auxiliary oil return port; one end of the circulating hydraulic pump is connected with a circulating motor, the other end of the circulating hydraulic pump is connected with a radiator I, and the radiator I is connected with an auxiliary oil return port in the upper portion of another hydraulic oil tank through a circulating oil pipe.
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| CN202020594840.6U CN212844297U (en) | 2020-04-20 | 2020-04-20 | Modular power assembly test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117703952A (en) * | 2024-02-05 | 2024-03-15 | 湖南长航动力科技有限公司 | Disconnecting device for inclusion test of aeroengine test bed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117703952A (en) * | 2024-02-05 | 2024-03-15 | 湖南长航动力科技有限公司 | Disconnecting device for inclusion test of aeroengine test bed |
| CN117703952B (en) * | 2024-02-05 | 2024-05-03 | 湖南长航动力科技有限公司 | Disconnecting device for inclusion test of aeroengine test bed |
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