Diesel engine power generation endurance test bench
By using support plates and spring structures in the diesel engine power generation durability test bench to reduce the vibration amplitude, the problem of excessive differences in the shaft end position during the inspection process is solved, the service life of the connecting shaft is extended, and the accuracy of the detection is ensured.
Patent Information
- Application Number
- CN202323652639.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-30
AI Technical Summary
During the inspection process, the existing diesel engine power generation durability test bench has too different positions of the shaft ends of the generator and diesel engine and the transmission device, resulting in wear and even breakage, affecting the detection accuracy.
A diesel engine power generation durability test bench including support plate, lifting assembly, connecting rod, spring and shock absorbing assembly was designed to reduce the vibration amplitude through the spring's rebound effect, avoid excessive differences in the shaft end position and reduce wear.
It effectively reduces the vibration amplitude of the machine during the test bench, extends the service life of the connecting shaft, and ensures the accuracy of the durability detection of diesel engine power generation.
Smart Images
Figure CN222212891U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diesel engine performance detection, in particular to a diesel engine power generation durability test bench. Background Art
[0002] A diesel engine is an engine that burns diesel to release energy. The advantages of a diesel engine are high power and good economic performance. It has great advantages in energy saving and environmental protection. After production, the diesel engine will be subjected to a power generation durability test to ensure its quality. The power generation durability test of a diesel engine generally connects the output shaft of the diesel engine to the shaft of the speed change device, and then connects the other shaft of the speed change device to the shaft of the generator. The generator is used as a load to generate electricity, and the output voltage of the generator is transformed by a transformer control device to output electrical energy. The power generation durability of the diesel engine is measured through the coordination between the machines.
[0003] When the diesel engine and generator are running, vibrations will be generated. The existing diesel engine power generation durability test bench does not have corresponding measures, resulting in that during the test, the shafts connecting the generator and diesel engine with the speed change device will vibrate with the machine. Due to the different vibration amplitudes between the machines, the corresponding position differences at the two ends of the connected shafts will be too large, causing excessive wear or even breakage of the shafts during vibration, affecting the diesel engine's power generation durability test. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a diesel engine power generation durability test bench for solving the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A diesel engine power generation durability test bench comprises a support plate, a support frame is fixedly arranged on the top of the support plate, a lifting assembly is arranged on the top of the support frame, a connecting rod is arranged on the support frame through the lifting assembly, a first spring is fixedly arranged inside the connecting rod, a support rod is fixedly arranged at the bottom end of the first spring, a mounting frame is fixedly arranged at the bottom end of the support rod, a disassembly assembly is arranged inside the mounting frame, a measuring assembly is arranged on the top of the support plate, and a shock absorbing assembly is arranged on the bottom of the support plate.
[0007] Preferably, the shock absorbing assembly includes a guide rod fixedly arranged at the bottom of the support plate and a second spring, a bottom plate is fixedly arranged at the bottom end of the second spring, and the bottom plate and the guide rod are movably connected.
[0008] Preferably, the lifting assembly comprises a telescopic cylinder fixedly arranged on the top of the support frame, and the output end of the telescopic cylinder penetrates the support frame, extends to the inside of the support frame and is fixedly connected to the connecting rod.
[0009] Preferably, the disassembly assembly comprises a fixing frame fixedly arranged at the bottom of the interior of the mounting frame, and a mounting plate is slidably arranged inside the fixing frame.
[0010] Preferably, the measuring assembly includes a generator, a speed change device, a control device and a coupling, the generator and the top of the support plate are fixedly installed, the speed change device and the top of the support plate are fixedly installed, one end of the coupling is fixedly installed with one end of the speed change device, the other end of the coupling is fixedly installed with the output end of the generator, and the control device and the top of the support plate are fixedly installed.
[0011] Preferably, a base is fixedly provided at the bottom of the bottom plate, and the base is made of anti-slip material.
[0012] Preferably, there are multiple second springs, and the multiple second springs are distributed in a rectangular array.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: when the diesel engine power generation durability test bench is started for testing, vibration will be generated, which will squeeze the support plate 1 to move downward and compress the second spring 14. The rebound effect of the second spring 14 will reduce the vibration amplitude of the support plate 1, thereby reducing the vibration amplitude of the machine. At the same time, the diesel engine will drive the mounting frame 9 to vibrate, and the vibration of the mounting frame 9 will drive the support rod 8 to move upward and squeeze the first spring 7. The rebound effect of the first spring 7 will reduce the vibration amplitude of the mounting frame 9, thereby reducing the vibration amplitude of the diesel engine. The device effectively reduces the amplitude of machine vibration when the test bench is running, avoids excessive difference in the relative position of the two ends of the shaft connected to the machine, and thus reduces the degree of wear of the connected shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is the structural survey drawing of the utility model;
[0015] Figure 2 It is a front cross-sectional view of the local structure of the utility model;
[0016] Figure 3 Another partial structural diagram of the utility model;
[0017] Figure 4 It is the rear view of the structure of the utility model.
[0018] In the figure: 1. support plate; 2. generator; 3. speed change device; 4. support frame; 5. telescopic cylinder; 6. connecting rod; 7. first spring; 8. support rod; 9. mounting frame; 10. fixing frame; 11. mounting plate; 12. bottom plate; 13. guide rod; 14. second spring; 15. base; 16. control device; 17. coupling. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Reference Figure 1-4A diesel engine power generation durability test bench includes a support plate 1, a support frame 4 is fixedly arranged on the top of the support plate 1, a lifting assembly is arranged on the top of the support frame 4, and the lifting assembly includes a telescopic cylinder 5 fixedly arranged on the top of the support frame 4, the output end of the telescopic cylinder 5 passes through the support frame 4 and extends to the inside of the support frame 4 and is fixedly connected to the connecting rod 6, and the output end of the telescopic cylinder 5 is extended and shortened to drive the connecting rod 6 to move up and down, so that the diesel engine moves up and down, so that different types of diesel engines can be connected to the shaft of the speed change device 3, thereby improving the practicality of the device, the support frame 4 is provided with a connecting rod 6 through the lifting assembly, a first spring 7 is fixedly arranged inside the connecting rod 6, a support rod 8 is fixedly arranged at the bottom end of the first spring 7, and a mounting frame is fixedly arranged at the bottom end of the support rod 8 9, a disassembly assembly is arranged inside the mounting frame 9, and the disassembly assembly includes a fixing frame 10 fixedly arranged at the bottom of the mounting frame 9, and a mounting plate 11 is slidably arranged inside the fixing frame 10, and the mounting plate 11 can be removed, and then the diesel engine is fixed on the mounting plate 11, so as to facilitate the installation of the diesel engine, and a measuring assembly is arranged on the top of the support plate 1, and the measuring assembly includes a generator 2, a speed change device 3, a control device 16 and a coupling 17, the generator 2 is fixedly installed on the top of the support plate 1, the speed change device 3 is fixedly installed on the top of the support plate 1, one end of the coupling 17 is fixedly installed on one end of the speed change device 3, and the other end of the coupling 17 is fixedly installed on the output end of the generator 2, the control device 16 is fixedly installed on the top of the support plate 1, and the generator 2 is fixedly installed on the top of the support plate 1 through the coupling 17 The output shaft of the motor 2 is connected to one shaft of the speed change device 3, and the other shaft of the speed change device 3 is connected to the output shaft of the diesel engine through another coupling 17. The voltage is transformed by the control device 16, and the generator 2, the speed change device 3, and the control device 16 cooperate with each other for detection to ensure that the power generation durability of the diesel engine is qualified. A shock absorbing assembly is arranged at the bottom of the support plate 1. The shock absorbing assembly includes a guide rod 13 and a second spring 14 fixedly arranged at the bottom of the support plate 1. The number of the second springs 14 is multiple, and the multiple second springs 14 are distributed in a rectangular array. The bottom end of the second spring 14 is fixedly provided with a bottom plate 12, and the bottom plate 12 and the guide rod 13 are movably connected. The support plate 1 moves downward to compress the second spring 14, and the rebound effect of the second spring 14 reduces the support The vibration amplitude of the support plate 1 is reduced, thereby reducing the vibration amplitude of the machine, avoiding excessive difference in corresponding positions of the two ends of the shaft connected between the machines due to vibration, thereby causing wear or even damage. A base 15 is fixedly arranged at the bottom of the bottom plate 12, and the base 15 is made of non-slip material. When the diesel engine, the speed change device 3 and the generator 2 are started for testing, the diesel engine power generation durability test bench will generate vibration, squeeze the support plate 1 to move downward, and compress the second spring 14. Through the rebound effect of the second spring 14, the vibration amplitude of the support plate 1 is reduced, thereby reducing the vibration amplitude of the machine. At the same time, the diesel engine will drive the mounting frame 9 to vibrate, and the vibration of the mounting frame 9 drives the support rod 8 to move upward and squeeze the first spring 7. Through the rebound effect of the first spring 7, the vibration amplitude of the mounting frame 9 is reduced.This device can effectively reduce the vibration amplitude of the diesel engine when the test bench is running, avoid the relative position difference between the two ends of the shaft connected to the machine is too large, and thus reduce the wear degree of the connected shaft.
[0021] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.
[0022] When in use: fix the diesel engine on the mounting plate 11, push the mounting plate 11 into the interior of the fixing frame 10, extend and shorten the output end of the telescopic cylinder 5, drive the connecting rod 6 to move up and down, and the connecting rod 6 drives the diesel engine to move up and down through the first spring 7, the support rod 8 and the mounting frame 9, align the shaft of the diesel engine with the shaft of the speed change device 3, and connect through another coupling 17, then start the diesel engine, the speed change device 3 and the generator 2 to cooperate with each other for detection, during the detection, the machine will vibrate and squeeze the support plate 1 to move downward, the support plate 1 moves downward to compress the second spring 14, and the vibration amplitude of the support plate 1 is reduced through the rebound effect of the second spring 14, thereby reducing the vibration amplitude of the machine, and at the same time, the diesel engine will drive the mounting frame 9 to vibrate, and the vibration of the mounting frame 9 drives the support rod 8 to move upward and squeeze the first spring 7, and the vibration amplitude of the mounting frame 9 is reduced through the rebound effect of the first spring 7, thereby reducing the vibration amplitude of the diesel engine, and the vibration amplitude of the diesel engine, the speed change device 3 and the generator 2 is reduced, so that the position difference corresponding to the two ends of the connected shaft is reduced.
[0023] In summary, when the diesel engine, the speed change device 3 and the generator 2 are started for testing, vibration will be generated on the diesel engine power generation durability test bench, which will squeeze the support plate 1 to move downward and compress the second spring 14. The rebound effect of the second spring 14 will reduce the vibration amplitude of the support plate 1, thereby reducing the vibration amplitude of the machine. At the same time, the diesel engine will drive the mounting frame 9 to vibrate, and the vibration of the mounting frame 9 will drive the support rod 8 to move upward and squeeze the first spring 7. The rebound effect of the first spring 7 will reduce the vibration amplitude of the mounting frame 9, thereby reducing the vibration amplitude of the diesel engine. The device effectively reduces the vibration amplitude of the machine when the test bench is running, avoids excessive difference in the relative position of the two ends of the shaft connected to the machine, and thus reduces the degree of wear of the connected shaft.
[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A diesel engine power generation durability test bench, comprising a support plate (1), It is characterized in that A support frame (4) is fixedly arranged on the top of the support plate (1), a lifting assembly is arranged on the top of the support frame (4), a connecting rod (6) is arranged on the support frame (4) through the lifting assembly, a first spring (7) is fixedly arranged inside the connecting rod (6), a support rod (8) is fixedly arranged at the bottom end of the first spring (7), a mounting frame (9) is fixedly arranged at the bottom end of the support rod (8), a disassembly assembly is arranged inside the mounting frame (9), a measuring assembly is arranged on the top of the support plate (1), and a shock absorbing assembly is arranged at the bottom of the support plate (1).
2. A diesel engine power generation durability test bench according to claim 1, It is characterized in that The shock absorbing assembly comprises a guide rod (13) and a second spring (14) fixedly arranged at the bottom of the support plate (1); a bottom plate (12) is fixedly arranged at the bottom end of the second spring (14); and the bottom plate (12) and the guide rod (13) are movably connected.
3. A diesel engine power generation durability test bench according to claim 1, It is characterized in that The lifting assembly comprises a telescopic cylinder (5) fixedly arranged on the top of the support frame (4), and an output end of the telescopic cylinder (5) penetrates the support frame (4) and extends to the interior of the support frame (4) and is fixedly connected to a connecting rod (6).
4. A diesel engine power generation durability test bench according to claim 1, It is characterized in that The disassembly assembly comprises a fixing frame (10) fixedly arranged at the bottom of the interior of the mounting frame (9), and a mounting plate (11) is slidably arranged inside the fixing frame (10).
5. A diesel engine power generation durability test bench according to claim 1, It is characterized in that The measuring assembly comprises a generator (2), a speed change device (3), a control device (16) and a coupling (17); the generator (2) is fixedly mounted on the top of a support plate (1); the speed change device (3) is fixedly mounted on the top of the support plate (1); one end of the coupling (17) is fixedly mounted on one end of the speed change device (3); the other end of the coupling (17) is fixedly mounted on the output end of the generator (2); and the control device (16) is fixedly mounted on the top of the support plate (1).
6. A diesel engine power generation durability test bench according to claim 2, It is characterized in that A base (15) is fixedly arranged at the bottom of the base plate (12), and the base (15) is made of an anti-slip material.
7. A diesel engine power generation durability test bench according to claim 2, It is characterized in that The number of the second springs (14) is multiple, and the multiple second springs (14) are distributed in a rectangular array.