A dynamic torque detection device for the secondary balance mechanism of an engine

Abstract

A dynamic torque detection device for a secondary balance mechanism of an engine relates to the technical field of dynamic torque detection, and includes a detection table. Along the length direction of the top of the detection table, a detection component, two oppositely arranged fixed components and an adjustment component are sequentially provided. At the position between the two fixed components on the top of the detection table, an oil injection component and a horizontally slidable sliding plate are provided. Above the sliding plate, a horizontally arranged support plate is provided. Vertically fixed on the top of the sliding plate are two lifting telescopic cylinders, and the telescopic ends of the lifting telescopic cylinders are fixedly connected to the support plate. Fixed on the top of the support plate is a profiling block, and the profiling block is arranged to conform to the oil inlet groove of the secondary balance mechanism. The volume of the profiling block is smaller than the volume of the oil inlet groove. Vertically arranged lower positioning columns are fixedly provided on the top of the profiling block and the top of the support plate. The present invention solves the problems of low positioning convenience of the existing dynamic torque detection device for the secondary balance mechanism; the complex lubricating oil injection process and poor oil injection effect.

Description

Technical Field

[0001] The present invention relates to the technical field of dynamic torque detection, and particularly to a dynamic torque detection device for a secondary balance mechanism of an engine. Background Technique

[0002] In the automotive industry, in-line four-cylinder engines have obvious matching advantages due to their small external dimensions and are increasingly widely used. An engine should have low noise, good mobility, smooth driving, and comfortable riding. Due to the characteristics of its own structure, the secondary reciprocating inertia force generated during the operation of an in-line four-cylinder engine is superimposed on each other in the four cylinders, causing low-frequency vibration of this type of engine. To eliminate the influence of this inertia force, a secondary balance mechanism must be installed to achieve external balance.

[0003] When the engine is working, the secondary balance mechanism rotates synchronously with it. The secondary balance mechanism is an important component to maintain the stable operation of the engine. Therefore, the performance and stability of the secondary balance mechanism are particularly important. Dynamic torque is an important basis for evaluating the performance and stability of the secondary balance mechanism. Therefore, the dynamic torque needs to be detected before the secondary balance mechanism leaves the factory.

[0004] During the use of the existing dynamic torque detection device for the secondary balance mechanism, deficiencies have gradually emerged, mainly manifested in the following aspects:

[0005] First, the positioning convenience is low. Specifically, when detecting, the secondary balance mechanism needs to be fixed on the positioning tooling. The secondary balance mechanism has a total of six positioning holes. When positioning the secondary balance mechanism, first place the secondary balance mechanism on the positioning tooling and adjust its position so that its six positioning holes correspond to the six threaded grooves of the positioning tooling one by one. Then, pass six positioning bolts through the six positioning holes and screw them into the six threaded grooves correspondingly to position the secondary balance mechanism. Due to the structural characteristics of the secondary balance mechanism, its positioning holes are relatively deep. It is difficult to observe the situation below the positioning holes from above after the secondary balance mechanism is placed on the positioning tooling. Therefore, it is difficult to adjust the relative position of the positioning holes and the threaded grooves, and it takes a long time and a large amount of work to fully tighten the six positioning bolts. The above reasons result in low positioning convenience of the secondary balance mechanism, and thus low detection efficiency.

[0006] Second, the lubricating oil injection process is complex and the injection effect is poor. Specifically, during the detection process, the secondary balance mechanism needs to rotate at a high speed. To protect the secondary balance mechanism, lubricating oil needs to be injected into it. Due to the structural characteristics of the secondary balance mechanism, its oil inlet is in one of the positioning holes. When adding lubricating oil to the secondary balance mechanism, workers need to use a syringe to inject lubricating oil into the oil inlet in the positioning hole. Therefore, the lubricating oil injection process is complex, increasing the detection cycle. In addition, the lubricating oil groove inside the secondary balance mechanism is relatively deep, and the lubricating oil has a certain viscosity. Therefore, the lubricating oil injected with a syringe cannot completely cover the lubricating oil groove, resulting in a poor injection effect. When the high-speed rotating secondary balance mechanism lacks lubrication, it will be damaged seriously.

[0007] In summary, it can be seen that the existing technology obviously has inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0008] Aiming at the defects in the existing technology, the technical problem to be solved by the present invention is to provide a dynamic torque detection device for the secondary balance mechanism of an engine. This device can quickly position the secondary balance mechanism and the positioning tooling, greatly reducing the time for adjusting the relative position between the secondary balance mechanism and the positioning tooling and the time for fixing the secondary balance mechanism and the positioning tooling. Moreover, the fixing process is simple, reducing the workload and improving the detection efficiency.

[0009] This device can also automatically inject lubricating oil into the positioned secondary balance mechanism, and the injected lubricating oil can fully cover the lubricating oil groove. Therefore, the oil injection process of this device is simple and the injection effect is good, which not only further improves the detection efficiency but also effectively protects the secondary balance mechanism.

[0010] To solve the above problems, the present invention provides the following technical solutions:

[0011] A dynamic torque detection device for a secondary balance mechanism of an engine, comprising a detection table. Along the length direction of the top of the detection table, a detection component, two oppositely arranged fixing components and an adjusting component are successively provided. At the position between the two fixing components on the top of the detection table, an oil injection component and a horizontally slidable sliding plate are provided. Above the sliding plate, a horizontally arranged support plate is provided. Vertically fixed on the top of the sliding plate are two lifting telescopic cylinders, and the telescopic ends of the lifting telescopic cylinders are fixedly connected to the support plate. Fixed on the top of the support plate is a profiling block, and the profiling block is arranged to conform to the oil inlet groove of the secondary balance mechanism. The volume of the profiling block is smaller than the volume of the oil inlet groove. Vertically fixed on the top of the profiling block and the top of the support plate are six lower positioning posts in total. The arrangement of the six lower positioning posts is the same as the arrangement of the six positioning holes of the secondary balance mechanism. The diameter of the lower positioning post is smaller than the diameter of the positioning hole. An upper oil passage groove is provided inside the profiling block, and the upper port of the upper oil passage groove horizontally penetrates the upper outer wall of the profiling block. A lower oil passage groove communicated with the upper oil passage groove is provided inside the support plate, and the lower port of the lower oil passage groove penetrates downward through the support plate.

[0012] As an optimized scheme, the fixing component includes a slidable block horizontally slidably arranged. Fixed on the top of the slidable block is a fixed L-shaped plate. At the end of the fixed L-shaped plate, a vertically slidable pressing plate is provided. Vertically fixed on the bottom of the pressing plate are three upper positioning posts. The arrangement of the three upper positioning posts is the same as the arrangement of the three positioning holes on one side of the secondary balance mechanism. A rubber pad is sleeved on the outer wall of the upper positioning post. The diameter of the upper positioning post is larger than the diameter of the lower positioning post and smaller than the diameter of the positioning hole. A conical positioning groove is provided at the top of the lower positioning post, and the bottom of the upper positioning post is a conical structure.

[0013] As an optimized scheme, the adjusting component includes a support L-shaped seat fixedly arranged on the top of the detection table. At the end of the support L-shaped seat, two support L-shaped plates slidably arranged towards each other or away from each other are provided. At the positions on both sides of the support L-shaped plates at the inner top of the support L-shaped seat, two clamping L-shaped plates are provided. The four clamping L-shaped plates are pairwise opposite, and the two opposite clamping L-shaped plates are slidably arranged towards each other or away from each other. Fixed at the lower ends of the four clamping L-shaped plates facing each other are arc-shaped plates, and the arc-shaped plates are arranged to conform to the arc-shaped structure at the bottom of the secondary balance mechanism. A through avoidance groove is provided at the top of the support L-shaped seat. Inside the avoidance groove, a sliding L-shaped plate is provided. The opposite side walls of the sliding L-shaped plate are horizontally slidably connected to the opposite inner walls of the avoidance groove. One end of the sliding L-shaped plate horizontally extends outside the support L-shaped seat and is provided with a vertically slidable lifting plate.

[0014] As an optimized solution, the oil injection assembly includes a lifting block arranged vertically and liftable. A storage oil cylinder with an open top is fixedly provided at the top of the lifting block. A vertically arranged oil inlet pipe is fixedly provided at the inner bottom of the storage oil cylinder. The upper port of the oil inlet pipe extends upward outside the storage oil cylinder and is fixedly sleeved with a sealing gasket. A rectangular groove is penetrated through the top of the inspection table. A lubricating oil tank with an open top is provided below the inspection table. A oil pump is arranged in the lubricating oil tank. The lower port of the oil inlet pipe passes downward through the storage oil cylinder, the lifting block and the rectangular groove and is connected to the oil pump through an oil passing hose. A vertically fixed oil outlet pipe is arranged at the bottom of the lifting block. The upper port of the oil outlet pipe passes upward through the lifting block and is communicated with the inner cavity of the storage oil cylinder. The lower port of the oil outlet pipe passes downward through the rectangular groove and extends above the lubricating oil tank.

[0015] As an optimized solution, the detection assembly includes a driving motor and a torque meter fixedly arranged on the top of the inspection table. One end of the torque meter is connected to the output end of the driving motor through a coupling. A driving gear is fixedly installed at the other end of the torque meter. A torque and speed display meter is arranged on the top of the inspection table. Both the driving motor and the torque meter are electrically connected to the torque and speed display meter.

[0016] As an optimized solution, a horizontally arranged position adjustment telescopic cylinder is fixedly provided at the end of the supporting L-shaped seat. The telescopic end of the position adjustment telescopic cylinder is fixedly connected to the sliding plate.

[0017] As an optimized solution, two horizontally arranged control telescopic cylinders are fixedly provided on the top of the inspection table. The telescopic ends of the two control telescopic cylinders are correspondingly fixedly connected to the two sliding blocks. Two vertically arranged driving telescopic cylinders are fixedly provided at the inner top of the fixed L-shaped plate. The telescopic end of the driving telescopic cylinder is fixedly connected to the pressing plate.

[0018] As an optimized solution, two horizontally arranged hydraulic telescopic cylinders are fixedly provided at the end of the supporting L-shaped seat. The telescopic ends of the two hydraulic telescopic cylinders are correspondingly fixedly connected to the two supporting L-shaped plates. The two clamping L-shaped plates on the same side are fixedly connected through a driving plate. Two horizontally arranged electric control telescopic cylinders are fixedly provided at the inner top of the supporting L-shaped seat. The telescopic ends of the two electric control telescopic cylinders are correspondingly fixedly connected to the two driving plates.

[0019] As an optimized solution, a horizontally arranged horizontal telescopic cylinder is fixedly provided on the top of the supporting L-shaped seat. The telescopic end of the horizontal telescopic cylinder is fixedly connected to the sliding L-shaped plate. A vertically arranged vertical telescopic cylinder is fixedly provided at the end of the sliding L-shaped plate. The telescopic end of the vertical telescopic cylinder is fixedly connected to the lifting plate.

[0020] As an optimized solution, a vertically arranged pneumatic telescopic cylinder is fixedly provided at the top of the inspection table, and the telescopic end of the pneumatic telescopic cylinder is fixedly connected to the lifting block.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. When positioning the secondary balance mechanism, first place the secondary balance mechanism on the tops of the two supporting L-shaped plates (as shown in Figure 1 ), the vertical telescopic cylinder drives the lifting plate to slide downward to a preset position, the horizontal telescopic cylinder drives the sliding L-shaped plate to slide horizontally. When the lifting plate contacts the secondary balance mechanism, the secondary balance mechanism is initially adjusted until the opposite side walls of the secondary balance mechanism correspondingly contact the lifting plate and the supporting L-shaped plates. The two electric control telescopic cylinders respectively drive the two driving plates to move towards each other, and then drive the four clamping L-shaped plates to slide towards each other. When the two clamping L-shaped plates on one side contact the secondary balance mechanism, the secondary balance mechanism is adjusted for the second time until the four clamping L-shaped plates contact the opposite ends of the secondary balance mechanism. At this time, the arc-shaped plate is located below the arc-shaped structure of the secondary balance mechanism. The two hydraulic telescopic cylinders drive the two supporting L-shaped plates to slide away from each other until the supporting L-shaped plates are completely separated from the secondary balance mechanism. The lifting plate and the sliding L-shaped plate return to their original positions. The four arc-shaped plates support the secondary balance mechanism. The position-adjusting telescopic cylinder drives the sliding plate to slide to a preset position. At this time, the secondary balance mechanism is located directly above the support plate. The six lower positioning posts correspond to the six positioning holes one by one. The lifting telescopic cylinder drives the support plate to move upward, and the six lower positioning posts are respectively inserted into the six positioning holes until the support plate contacts the secondary balance mechanism and jacks up the secondary balance mechanism. The arc-shaped plate is separated from the secondary balance mechanism. The clamping L-shaped plates return to their original positions. Then the sliding plate and the support plate return to their original positions successively. At this time, the driving gear meshes with the driving gear of the secondary balance mechanism. The driving telescopic cylinder drives the pressing plate to slide downward, and the upper positioning post is inserted into the positioning hole until the bottom of the upper positioning post is inserted into the conical positioning groove. At this time, the rubber pad abuts against the secondary balance mechanism. Thus, the positioning of the secondary balance mechanism is completed. During the inspection of the positioned secondary balance mechanism, the secondary balance mechanism to be inspected can be placed on the supporting L-shaped plate and adjusted to a state supported by the four arc-shaped plates. This device can quickly position the secondary balance mechanism on the top of the support plate, greatly reducing the time for adjusting the relative position between the secondary balance mechanism and the support plate and the time for fixing the secondary balance mechanism and the support plate. Moreover, the fixing process is simple, reducing the workload and improving the inspection efficiency;

[0023] 2. After the secondary balance mechanism is fixed to the support plate, the top of the profiling block abuts against the top of the oil inlet groove. The oil inlet groove is not connected to the positioning hole. When adding lubricating oil to the lubricating oil tank, the pneumatic telescopic cylinder drives the lifting block to move upward until the upper port of the oil inlet pipe abuts against the lower port of the lower oil passage groove, and the gasket abuts against the support plate. The oil pump extracts the lubricating oil in the lubricating oil tank. The extracted lubricating oil sequentially passes through the oil passage hose, the oil inlet pipe, the lower oil passage groove and the upper oil passage groove and enters the oil inlet groove. Since the profiling block occupies most of the volume of the oil inlet groove, only a very small amount of lubricating oil is filled inside the oil inlet groove. After that, the lubricating oil enters the lubricating oil tank through the oil inlet, until the lubricating oil tank is filled with lubricating oil. This device can automatically inject lubricating oil into the positioned secondary balance mechanism, and the injected lubricating oil can fully cover the lubricating oil tank. Therefore, the oil injection process of this device is simple and the oil injection effect is good, which not only further improves the detection efficiency, but also effectively protects the secondary balance mechanism;

[0024] 3. After the detection of the secondary balance mechanism is completed, the lifting block moves downward, the oil inlet pipe is separated from the support plate, and the lubricating oil inside the secondary balance mechanism and in the upper oil passage groove and the lower oil passage groove drops downward into the oil storage cylinder. The lubricating oil in the oil storage cylinder flows back into the lubricating oil tank through the oil outlet pipe again. This device can reduce the waste of lubricating oil and improve the practicability of the device;

[0025] 4. When disassembling the detected secondary balance mechanism, the pressing plate and the sliding block are reset successively, thereby releasing the restriction on the secondary balance mechanism. The staff can directly remove the secondary balance mechanism on the support plate. This device can quickly remove the detected secondary balance mechanism, and the process is simple, which further improves the practicability and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0027] Figure 1 It is a schematic structural diagram of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the top of the sliding plate and the support plate of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the inside of the profiling block and the support plate of the present invention;

[0030] Figure 4 It is a schematic structural diagram of the secondary balance mechanism of the present invention;

[0031] Figure 5 Schematic diagram of the internal structure of the secondary balance mechanism of the present invention;

[0032] Figure 6 Schematic diagram of the structure of the fixed component of the present invention;

[0033] Figure 7 Schematic diagram of the structure of the adjustment component of the present invention;

[0034] Figure 8 Schematic diagram of the inner top of the supporting L-shaped seat of the present invention;

[0035] Figure 9 Schematic diagram of the internal structure of the avoidance groove of the present invention.

[0036] In the figure: 1 - detection table; 2 - detection component; 3 - torque and speed display instrument; 4 - coupling; 5 - torque meter; 6 - fixed component; 7 - fixed L-shaped plate; 8 - adjustment component; 9 - supporting L-shaped seat; 10 - sliding block; 11 - control telescopic cylinder; 12 - oil supply hose; 13 - oil pump; 14 - lubricating oil tank; 15 - driving gear; 16 - driving motor; 17 - position adjustment telescopic cylinder; 18 - profiling block; 19 - lower positioning column; 20 - support plate; 21 - lifting telescopic cylinder; 22 - sliding plate; 23 - rectangular groove; 24 - pneumatic telescopic cylinder; 25 - oil injection component; 26 - oil storage cylinder; 27 - lower oil passage; 28 - upper oil passage; 29 - conical positioning groove; 30 - gasket; 31 - inlet pipe; 32 - lifting block; 33 - outlet pipe; 34 - positioning hole; 35 - secondary balance mechanism; 36 - driving gear; 37 - oil inlet groove; 38 - oil inlet; 39 - lubricating oil groove; 40 - upper positioning column; 41 - rubber pad; 42 - pressing plate; 43 - driving telescopic cylinder; 44 - supporting L-shaped plate; 45 - hydraulic telescopic cylinder; 46 - clamping L-shaped plate; 47 - driving plate; 48 - electric control telescopic cylinder; 49 - lifting plate; 50 - vertical telescopic cylinder; 51 - arc plate; 52 - avoidance groove; 53 - horizontal telescopic cylinder; 54 - sliding L-shaped plate. Detailed implementation manners

[0037] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0038] As Figures 1 to 9As shown in the figure, a dynamic torque detection device for the secondary balance mechanism of an engine includes a detection table 1. Along the length direction of the top of the detection table 1, a detection component 2, two oppositely arranged fixing components 6 and an adjustment component 8 are successively provided. At the position between the two fixing components 6 on the top of the detection table 1, an oil injection component 25 and a horizontally slidable sliding plate 22 are provided. Above the sliding plate 22, a horizontally arranged support plate 20 is provided. Vertically fixed on the top of the sliding plate 22 are two lifting telescopic cylinders 21. The telescopic ends of the lifting telescopic cylinders 21 are fixedly connected to the support plate 20. Fixed on the top of the support plate 20 is a profiling block 18. The profiling block 18 is arranged to conform to the oil inlet groove 37 of the secondary balance mechanism 35. The volume of the profiling block 18 is smaller than the volume of the oil inlet groove 37. Vertically arranged lower positioning posts 19 are fixedly provided on the top of the profiling block 18 and the top of the support plate 20. There are six lower positioning posts 19 in total. The arrangement of the six lower positioning posts 19 is the same as the arrangement of the six positioning holes 34 of the secondary balance mechanism 35. The diameter of the lower positioning post 19 is smaller than the diameter of the positioning hole 34. An upper oil passage groove 28 is provided inside the profiling block 18. The upper port of the upper oil passage groove 28 horizontally penetrates the upper outer wall of the profiling block 18. A lower oil passage groove 27 communicated with the upper oil passage groove 28 is provided inside the support plate 20. The lower port of the lower oil passage groove 27 penetrates the support plate 20 downward.

[0039] The fixing component 6 includes a slidable block 10 arranged horizontally. Fixed on the top of the slidable block 10 is a fixed L-shaped plate 7. At the end of the fixed L-shaped plate 7, a vertically slidable pressing plate 42 is provided. Vertically fixed on the bottom of the pressing plate 42 are three upper positioning posts 40. The arrangement of the three upper positioning posts 40 is the same as the arrangement of the three positioning holes 34 on one side of the secondary balance mechanism 35. A rubber pad 41 is sleeved on the outer wall of the upper positioning post 40. The diameter of the upper positioning post 40 is larger than the diameter of the lower positioning post 19 and smaller than the diameter of the positioning hole 34. A conical positioning groove 29 is provided at the top of the lower positioning post 19. The bottom of the upper positioning post 40 is of a conical structure.

[0040] The adjustment component 8 includes a support L-shaped seat 9 fixedly arranged on the top of the detection table 1. At the end of the support L-shaped seat 9, two oppositely or reversely slidable support L-shaped plates 44 are provided. On both sides of the support L-shaped plates 44 at the inner top of the support L-shaped seat 9, two clamping L-shaped plates 46 are provided. The four clamping L-shaped plates 46 are pairwise opposite and the two opposite clamping L-shaped plates 46 are slidable oppositely or reversely. Fixed on the opposite lower ends of the four clamping L-shaped plates 46 are arc-shaped plates 51. The arc-shaped plates 51 are arranged to conform to the arc-shaped structure at the bottom of the secondary balance mechanism 35. A through avoidance groove 52 is provided at the top of the support L-shaped seat 9. Inside the avoidance groove 52, a sliding L-shaped plate 54 is provided. The opposite side walls of the sliding L-shaped plate 54 are horizontally slidably connected to the opposite inner walls of the avoidance groove 52. One end of the sliding L-shaped plate 54 horizontally extends outside the support L-shaped seat 9 and is provided with a vertically slidable lifting plate 49.

[0041] The oil filling assembly 25 includes a lifting block 32 arranged vertically and liftable. The top of the lifting block 32 is fixedly provided with an oil storage cylinder 26 with an open top. The inner bottom of the oil storage cylinder 26 is fixedly provided with a vertically arranged oil inlet pipe 31. The upper port of the oil inlet pipe 31 extends upward outside the oil storage cylinder 26 and is fixedly sleeved with a sealing gasket 30. A rectangular groove 23 is provided through the top of the test bench 1. Below the test bench 1 is a lubricating oil tank 14 with an open top. A fuel pump 13 is arranged in the lubricating oil tank 14. The lower port of the oil inlet pipe 31 passes downward through the oil storage cylinder 26, the lifting block 32 and the rectangular groove 23 and is connected to the fuel pump 13 through an oil connection hose 12. The bottom of the lifting block 32 is vertically and fixedly provided with an oil outlet pipe 33. The upper port of the oil outlet pipe 33 passes upward through the lifting block 32 and is connected to the inner cavity of the oil storage cylinder 26. The lower port of the oil outlet pipe 33 passes downward through the rectangular groove 23 and extends above the lubricating oil tank 14.

[0042] The detection assembly 2 includes a driving motor 16 and a torque meter 5 fixedly arranged on the top of the test bench 1. One end of the torque meter 5 is connected to the output end of the driving motor 16 through a coupling 4. The other end of the torque meter 5 is fixedly installed with a driving gear 15. A torque and speed display instrument 3 is arranged on the top of the test bench 1. Both the driving motor 16 and the torque meter 5 are electrically connected to the torque and speed display instrument 3.

[0043] The end of the supporting L-shaped seat 9 is fixedly provided with a horizontally arranged position-adjusting telescopic cylinder 17. The telescopic end of the position-adjusting telescopic cylinder 17 is fixedly connected to the sliding plate 22.

[0044] Two horizontally arranged control telescopic cylinders 11 are fixedly arranged on the top of the test bench 1. The telescopic ends of the two control telescopic cylinders 11 are correspondingly connected to the two sliding blocks 10. Two vertically arranged driving telescopic cylinders 43 are fixedly arranged on the inner top of the fixed L-shaped plate 7. The telescopic ends of the driving telescopic cylinders 43 are connected to the pressing plate 42.

[0045] The end of the supporting L-shaped seat 9 is fixedly provided with two horizontally arranged hydraulic telescopic cylinders 45. The telescopic ends of the two hydraulic telescopic cylinders 45 are correspondingly connected to the two supporting L-shaped plates 44. The two clamping L-shaped plates 46 on the same side are fixedly connected through a driving plate 47. Two horizontally arranged electric control telescopic cylinders 48 are fixedly arranged on the inner top of the supporting L-shaped seat 9. The telescopic ends of the two electric control telescopic cylinders 48 are correspondingly connected to the two driving plates 47.

[0046] The top of the supporting L-shaped seat 9 is fixedly provided with a horizontally arranged horizontal telescopic cylinder 53. The telescopic end of the horizontal telescopic cylinder 53 is connected to the sliding L-shaped plate 54. The end of the sliding L-shaped plate 54 is fixedly provided with a vertically arranged vertical telescopic cylinder 50. The telescopic end of the vertical telescopic cylinder 50 is connected to the lifting plate 49.

[0047] A vertically arranged pneumatic telescopic cylinder 24 is fixedly provided at the top of the detection table 1, and the telescopic end of the pneumatic telescopic cylinder 24 is fixedly connected to the lifting block 32.

[0048] The working principle of this device is as follows:

[0049] When positioning the secondary balance mechanism 35, first place the secondary balance mechanism 35 on the tops of two supporting L-shaped plates 44 (as Figure 1 shown). The vertical telescopic cylinder 50 drives the lifting plate 49 to slide downward to a preset position, and the horizontal telescopic cylinder 53 drives the sliding L-shaped plate 54 to slide horizontally. When the lifting plate 49 contacts the secondary balance mechanism 35, the secondary balance mechanism 35 is adjusted for the first time until the opposite side walls of the secondary balance mechanism 35 respectively contact the lifting plate 49 and the supporting L-shaped plates 44. The two electric control telescopic cylinders 48 respectively drive the two driving plates 47 to move towards each other, thereby driving the four clamping L-shaped plates 46 to slide towards each other. When the two clamping L-shaped plates 46 on one side contact the secondary balance mechanism 35, the secondary balance mechanism 35 is adjusted for the second time until the four clamping L-shaped plates 46 contact the opposite ends of the secondary balance mechanism 35. At this time, the arc-shaped plate 51 is located below the arc-shaped structure of the secondary balance mechanism 35. The two hydraulic telescopic cylinders 45 drive the two supporting L-shaped plates 44 to slide away from each other until the supporting L-shaped plates 44 are completely separated from the secondary balance mechanism 35. The lifting plate 49 and the sliding L-shaped plate 54 are reset. The four arc-shaped plates 51 support the secondary balance mechanism 35. The position-adjusting telescopic cylinder 17 drives the sliding plate 22 to slide to a preset position. At this time, the secondary balance mechanism 35 is located directly above the support plate 20. The six lower positioning columns 19 correspond to the six positioning holes 34 one by one. The lifting telescopic cylinder 21 drives the support plate 20 to move upward. The six lower positioning columns 19 are respectively inserted into the six positioning holes 34 until the support plate 20 contacts the secondary balance mechanism 35 and jacks up the secondary balance mechanism 35. The arc-shaped plate 51 is separated from the secondary balance mechanism 35. The clamping L-shaped plates 46 are reset. Then the sliding plate 22 and the support plate 20 are reset successively. At this time, the driving gear 15 meshes with the driving gear 36 of the secondary balance mechanism 35. The driving telescopic cylinder 43 drives the pressing plate 42 to slide downward. The upper positioning column 40 is inserted into the positioning hole 34 until the bottom of the upper positioning column 40 is inserted into the conical positioning groove 29. At this time, the rubber pad 41 abuts against the secondary balance mechanism 35. Thus, the positioning of the secondary balance mechanism 35 is completed. During the detection of the positioned secondary balance mechanism 35, the secondary balance mechanism 35 to be detected can be placed on the supporting L-shaped plates 44 and adjusted to a state supported by the four arc-shaped plates 51. This device can quickly position the secondary balance mechanism 35 on the top of the support plate 20, greatly reducing the time for adjusting the relative position between the secondary balance mechanism 35 and the support plate 20 and the time for fixing the secondary balance mechanism 35 to the support plate 20. Moreover, the fixing process is simple, reducing the workload and improving the detection efficiency;

[0050] After the secondary balance mechanism 35 is fixed to the support plate 20, the top of the profiling block 18 abuts against the top of the oil inlet groove 37. The oil inlet groove 37 is not communicated with the positioning hole 34. When adding lubricating oil to the lubricating oil groove 39, the pneumatic telescopic cylinder 24 drives the lifting block 32 to move upward until the upper port of the oil inlet pipe 31 abuts against the lower port of the lower oil passage groove 27, and the gasket 30 abuts against the support plate 20. The oil pump 13 pumps the lubricating oil in the lubricating oil tank 14. The pumped lubricating oil sequentially passes through the oil passage hose 12, the oil inlet pipe 31, the lower oil passage groove 27 and the upper oil passage groove 28 and enters the oil inlet groove 37. Since the profiling block 18 occupies most of the volume of the oil inlet groove 37, only a very small amount of lubricating oil is used to fill the inside of the oil inlet groove 37. Then, the lubricating oil enters the lubricating oil groove 39 through the oil inlet 38 until the lubricating oil groove 39 is filled with lubricating oil. This device can automatically inject lubricating oil into the positioned secondary balance mechanism 35, and the injected lubricating oil can fully cover the lubricating oil groove 39. Therefore, the oil injection process of this device is simple and the oil injection effect is good. It not only further improves the detection efficiency, but also effectively protects the secondary balance mechanism 35;

[0051] When detecting the secondary balance mechanism 35, the drive motor 16 drives the torque meter 5 and the drive gear 15 to rotate, and then drives the driving gear 36 to rotate, thereby driving the secondary balance mechanism 35. The torque and speed display meter 3 can display the rotation speed of the drive motor 16 and the torque value detected by the torque meter 5 in real time, and determine whether the secondary balance mechanism 35 is qualified through the torque value;

[0052] After the detection of the secondary balance mechanism 35 is completed, the lifting block 32 moves downward, the oil inlet pipe 31 is separated from the support plate 20, and the lubricating oil inside the secondary balance mechanism 35 and in the upper oil passage groove 28 and the lower oil passage groove 27 drops downward into the oil storage cylinder 26. The lubricating oil in the oil storage cylinder 26 flows back into the lubricating oil tank 14 through the oil outlet pipe 33 again. This device can reduce the waste of lubricating oil and improve the practicability of the device;

[0053] When disassembling the detected secondary balance mechanism 35, the pressing plate 42 and the sliding block 10 are reset successively, thereby releasing the restriction on the secondary balance mechanism 35. The staff can directly remove the secondary balance mechanism 35 on the support plate 20. This device can quickly remove the detected secondary balance mechanism 35, and the process is simple, further improving the practicability and convenience of the device.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. A dynamic torque detection device for a secondary balancing mechanism of an engine, characterized in that: The invention comprises a testing platform (1), wherein the top of the testing platform (1) is provided with a testing component (2), two fixed components (6) arranged opposite to each other, and an adjusting component (8) in sequence along the length direction thereof; the top of the testing platform (1) is provided with an oil injection component (25) and a sliding plate (22) arranged to slide horizontally, at a position between the two fixed components (6); a support plate (20) arranged horizontally is provided above the sliding plate (22); two lifting and telescopic cylinders (21) are vertically fixedly provided on the top of the sliding plate (22); the telescopic ends of the lifting and telescopic cylinders (21) are fixedly connected to the support plate (20); a profiling block (18) is fixedly provided on the top of the support plate (20); the profiling block (18) is arranged to follow the oil inlet groove (37) of the secondary balancing mechanism (35); and the profiling block (18) is arranged to follow the oil inlet groove (37) of the secondary balancing mechanism (35); and the profiling block (18) is provided to follow the oil inlet groove (37) of the secondary balancing mechanism (35). The volume of the profiling block (18) is smaller than the volume of the oil inlet groove (37). The top of the profiling block (18) and the top of the support plate (20) are both fixedly provided with vertically arranged lower positioning columns (19). There are six lower positioning columns (19) in total. The arrangement of the six lower positioning columns (19) is the same as the arrangement of the six positioning holes (34) of the secondary balancing mechanism (35). The diameter of the lower positioning columns (19) is smaller than the diameter of the positioning holes (34). An upper oil groove (28) is provided inside the profiling block (18). The upper port of the upper oil groove (28) horizontally penetrates the upper outer wall of the profiling block (18). A lower oil groove (27) connected to the upper oil groove (28) is provided inside the support plate (20). The lower port of the lower oil groove (27) downwardly penetrates the support plate (20).

2. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 1, characterized in that: The fixing assembly (6) comprises a sliding block (10) arranged to slide horizontally, a fixed L-shaped plate (7) being fixedly arranged on the top of the sliding block (10), a pressing plate (42) being arranged to slide vertically at the end of the fixed L-shaped plate (7), three upper positioning columns (40) being vertically fixedly arranged on the bottom of the pressing plate (42), the arrangement of the three upper positioning columns (40) being the same as the arrangement of the three positioning holes (34) on one side of the secondary balancing mechanism (35), a rubber pad (41) being sleeved on the upper outer wall of the upper positioning column (40), the diameter of the upper positioning column (40) being larger than the diameter of the lower positioning column (19) and smaller than the diameter of the positioning hole (34), the top of the lower positioning column (19) being provided with a conical positioning groove (29), and the bottom of the upper positioning column (40) being a conical structure.

3. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 1, characterized in that: The adjustment assembly (8) comprises a support L-shaped seat (9) fixedly arranged on the top of the detection platform (1), the end of the support L-shaped seat (9) is provided with two support L-shaped plates (44) which are arranged to slide towards or away from each other, and the top of the support L-shaped seat (9) is provided with two clamping L-shaped plates (46) at positions on both sides of the support L-shaped plate (44), the four clamping L-shaped plates (46) are opposite to each other in pairs, and the two opposite clamping L-shaped plates (46) are arranged to slide towards or away from each other, and the lower ends of the four clamping L-shaped plates (46) facing each other are fixed. An arc-shaped plate (51) is provided, and the arc-shaped plate (51) is arranged in a conformal manner with the arc-shaped structure at the bottom of the secondary balancing mechanism (35); a running avoidance groove (52) is arranged through the top of the supporting L-shaped seat (9); a sliding L-shaped plate (54) is arranged in the running avoidance groove (52); the opposite side walls of the sliding L-shaped plate (54) are horizontally slidably connected to the opposite inner walls of the running avoidance groove (52); one end of the sliding L-shaped plate (54) extends horizontally to the outside of the supporting L-shaped seat (9) and is provided with a lifting plate (49) arranged to slide vertically.

4. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 1, characterized in that: The oil injection assembly (25) comprises a lifting block (32) arranged to be lifted vertically, an oil storage cylinder (26) with an opening at the top is fixedly provided on the top of the lifting block (32), an oil inlet pipe (31) arranged vertically is fixedly provided on the inner bottom of the oil storage cylinder (26), an upper end of the oil inlet pipe (31) extends upward to the outside of the oil storage cylinder (26) and is fixedly sleeved with a sealing gasket (30), a rectangular groove (23) is provided through the top of the test bench (1), a lubricating oil tank (14) with an opening at the top is provided below the test bench (1), and the An oil pump (13) is provided in the lubricating oil tank (14); a lower end of the oil inlet pipe (31) passes downward through the oil storage barrel (26), the lifting block (32) and the rectangular groove (23) and is connected to the oil pump (13) through an oil hose (12); an oil outlet pipe (33) is vertically fixed at the bottom of the lifting block (32); an upper end of the oil outlet pipe (33) passes upward through the lifting block (32) and is connected to the inner cavity of the oil storage barrel (26); and a lower end of the oil outlet pipe (33) passes downward through the rectangular groove (23) and extends to directly above the lubricating oil tank (14).

5. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 1, characterized in that: The detection assembly (2) comprises a drive motor (16) and a torque meter (5) fixedly arranged on the top of the detection platform (1); one end of the torque meter (5) is connected to the output end of the drive motor (16) via a coupling (4); the other end of the torque meter (5) is fixedly mounted with a drive gear (15); a torque speed display (3) is provided on the top of the detection platform (1); the drive motor (16) and the torque meter (5) are both electrically connected to the torque speed display (3).

6. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 3, characterized in that: A horizontally arranged position-adjusting telescopic cylinder (17) is fixedly provided at the end of the supporting L-shaped seat (9), and a telescopic end of the position-adjusting telescopic cylinder (17) is fixedly connected to a sliding plate (22).

7. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 2, characterized in that: Two horizontally arranged control telescopic cylinders (11) are fixedly provided on the top of the detection platform (1), and the telescopic ends of the two control telescopic cylinders (11) are fixedly connected to the two sliding blocks (10) respectively. Two vertically arranged drive telescopic cylinders (43) are fixedly provided on the inner top of the fixed L-shaped plate (7), and the telescopic ends of the drive telescopic cylinders (43) are fixedly connected to the pressing plate (42).

8. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 3, characterized in that: Two horizontally arranged hydraulic telescopic cylinders (45) are fixedly provided at the end of the supporting L-shaped seat (9), and the telescopic ends of the two hydraulic telescopic cylinders (45) are fixedly connected to the two supporting L-shaped plates (44) respectively. The two clamping L-shaped plates (46) located on the same side are fixedly connected via a driving plate (47). Two horizontally arranged electric telescopic cylinders (48) are fixedly provided at the inner top of the supporting L-shaped seat (9), and the telescopic ends of the two electric telescopic cylinders (48) are fixedly connected to the two driving plates (47) respectively.

9. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 3, characterized in that: A horizontally arranged horizontal telescopic cylinder (53) is fixedly provided on the top of the supporting L-shaped seat (9), and a telescopic end of the horizontal telescopic cylinder (53) is fixedly connected to a sliding L-shaped plate (54). A vertically arranged vertical telescopic cylinder (50) is fixedly provided on the end of the sliding L-shaped plate (54), and a telescopic end of the vertical telescopic cylinder (50) is fixedly connected to a lifting plate (49).

10. The dynamic torque detection device for a secondary balancing mechanism of an engine according to claim 4, characterized in that: A vertically arranged pneumatic telescopic cylinder (24) is fixedly provided on the top of the detection platform (1), and a telescopic end of the pneumatic telescopic cylinder (24) is fixedly connected to a lifting block (32).

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