A dynamic torque detection device for a secondary balancing mechanism of an engine

Abstract

A dynamic torque detection device for a secondary balancing mechanism of an engine relates to the technical field of dynamic torque detection, and comprises a detection platform, wherein the top of the detection platform is provided with a detection component, two fixed components arranged opposite to each other, and an adjustment component in sequence along its length direction, and an oil injection component and a sliding plate arranged to slide horizontally are provided at a position between the two fixed components on the top of the detection platform, and a horizontally arranged support plate is provided above the sliding plate, and two lifting and telescopic cylinders are vertically fixedly provided on the top of the sliding plate, and the telescopic ends of the lifting and telescopic cylinders are fixedly connected to the support plate, and a profiling block is fixedly provided on the top of the support plate, and the profiling block is arranged in the same shape as the oil inlet groove of the secondary balancing mechanism, and the volume of the profiling block is smaller than the volume of the oil inlet groove, and the top of the profiling block and the top of the support plate are both fixedly provided with a vertically arranged lower positioning column. The present invention solves the problems of low positioning convenience of the existing dynamic torque detection device for the secondary balancing mechanism, and the problems of complex lubricating oil injection process and poor injection effect.

Description

Technical Field

[0001] The invention relates to the technical field of dynamic torque detection, and in particular to a dynamic torque detection device for a secondary balancing mechanism of an engine. Background Art

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

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

[0004] The existing two-stage balancing mechanism dynamic torque detection device gradually exposed its shortcomings during use, mainly in the following aspects: First, the positioning convenience is low. Specifically, during detection, the secondary balancing mechanism needs to be fixed on the positioning fixture. The secondary balancing mechanism has a total of six positioning holes. When positioning the secondary balancing mechanism, first place the secondary balancing mechanism on the positioning fixture and adjust the position so that its six positioning holes correspond to the six thread grooves of the positioning fixture one by one. Then, the six positioning bolts are respectively passed through the six positioning holes and screwed into the six thread grooves accordingly, thereby positioning the secondary balancing mechanism. Due to the structural characteristics of the secondary balancing mechanism, its positioning holes are relatively deep. After the secondary balancing mechanism is placed on the positioning fixture, it is difficult to observe the situation below the positioning holes from above. Therefore, the process of adjusting the relative positions of the positioning holes and the thread grooves is difficult, and it takes a long time and a large amount of work to fully tighten the six positioning bolts. The above reasons lead to low positioning convenience of the secondary balancing mechanism, which in turn leads to low detection efficiency.

[0005] Second, the lubricating oil filling process is complicated and the filling effect is poor. Specifically, during the inspection process, the secondary balancing mechanism needs to rotate at high speed. In order to protect the secondary balancing mechanism, lubricating oil needs to be injected into it. Due to the structural characteristics of the secondary balancing mechanism, its oil inlet is in one of the positioning holes. When adding lubricating oil to the secondary balancing mechanism, the staff needs to use a syringe to inject lubricating oil into the oil inlet in the positioning hole. Therefore, the lubricating oil filling process is complicated, which increases the inspection cycle. In addition, the lubricating oil groove inside the secondary balancing mechanism is deep, and the lubricating oil has a certain viscosity. Therefore, the lubricating oil injected with a syringe cannot completely cover the lubricating oil groove, which leads to poor filling effect. The high-speed rotating secondary balancing mechanism lacks lubrication of lubricating oil and will be damaged seriously.

[0006] In summary, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0007] In view of the defects in the prior art, the technical problem to be solved by the present invention is to provide a dynamic torque detection device for a secondary balancing mechanism of an engine, which can quickly position the secondary balancing mechanism and the positioning tooling, greatly reducing the time for adjusting the relative position of the secondary balancing mechanism and the positioning tooling and the time for fixing the secondary balancing mechanism and the positioning tooling, and the fixing process is simple, reducing the workload and improving the detection efficiency; The device can also automatically inject lubricating oil into the positioned secondary balancing mechanism. The injected lubricating oil can fully cover the lubricating oil groove. Therefore, the oiling process of the device is simple and the oiling effect is good, which not only further improves the detection efficiency, but also effectively protects the secondary balancing mechanism.

[0008] To solve the above problems, the present invention provides the following technical solutions: A dynamic torque detection device for a secondary balancing mechanism of an engine comprises a detection platform, wherein a detection component, two fixing components arranged opposite to each other and an adjustment component are sequentially arranged on the top of the detection platform along its length direction, an oil injection component and a sliding plate arranged for horizontal sliding are arranged at a position between the two fixing components on the top of the detection platform, a horizontally arranged support plate is arranged above the sliding plate, two lifting and telescopic cylinders are vertically fixedly arranged on the top of the sliding plate, the telescopic ends of the lifting and telescopic cylinders are fixedly connected to the support plate, a profiling block is fixedly arranged on the top of the support plate, and the profiling block is connected to the secondary balancing machine The oil inlet groove of the structure is arranged in a conformal manner, the volume of the profiling block is smaller than the volume of the oil inlet groove, the top of the profiling block and the top of the support plate are fixedly provided with vertically arranged lower positioning columns, there are six lower positioning columns in total, the arrangement of the six lower positioning columns is the same as the arrangement of the six positioning holes of the secondary balancing mechanism, the diameter of the lower positioning columns is smaller than the diameter of the positioning holes, an upper oil groove is arranged inside the profiling block, the upper port of the upper oil groove horizontally penetrates the upper outer wall of the profiling block, a lower oil groove connected to the upper oil groove is arranged inside the support plate, and the lower port of the lower oil groove downwardly penetrates the support plate.

[0009] As an optimized solution, the fixed assembly includes a sliding block arranged for horizontal sliding, a fixed L-shaped plate is fixedly provided on the top of the sliding block, a pressure plate arranged for vertical sliding is provided at the end of the fixed L-shaped plate, and three upper positioning columns are vertically fixedly provided at the bottom of the pressure plate, and the arrangement of the three upper positioning columns is the same as the arrangement of the three positioning holes on one side of the secondary balancing mechanism, the upper outer wall of the upper positioning column is provided with a rubber pad, the diameter of the upper positioning column is larger than the diameter of the lower positioning column and smaller than the diameter of the positioning hole, a conical positioning groove is provided on the top of the lower positioning column, and the bottom of the upper positioning column is a conical structure.

[0010] As an optimized solution, the adjustment component includes a supporting L-shaped seat fixedly arranged on the top of the testing table, the end of the supporting L-shaped seat is provided with two supporting L-shaped plates slidably arranged toward or away from each other, and two clamping L-shaped plates are provided at the top of the supporting L-shaped seat on both sides of the supporting L-shaped plate, the four clamping L-shaped plates are opposite to each other and the two opposite clamping L-shaped plates are slid toward or away from each other, and the lower ends of the four clamping L-shaped plates facing each other are fixed with arc plates, and the arc plates are arranged in accordance with the arc structure at the bottom of the secondary balancing mechanism, the top of the supporting L-shaped seat is provided with an avoidance groove arranged through it, and a sliding L-shaped plate is provided in the avoidance groove, and the relative side walls of the sliding L-shaped plate are horizontally slidably connected with the relative inner walls of the avoidance groove, and one end of the sliding L-shaped plate extends horizontally to the outside of the supporting L-shaped seat and is provided with a lifting plate arranged for vertical sliding.

[0011] As an optimized solution, the oil filling assembly includes a lifting block that is vertically lifted and lowered, an oil storage cylinder with an opening at the top is fixedly provided on the top of the lifting block, a vertically arranged oil inlet pipe is fixedly provided on the inner bottom of the oil storage cylinder, the upper port of the oil inlet pipe extends upward to the outside of the oil storage cylinder and is fixedly covered with a sealing gasket, a rectangular groove is penetrated through the top of the inspection platform, a lubricating oil tank with an opening at the top is provided below the inspection platform, an oil pump is provided in the lubricating oil tank, the lower port of the oil inlet pipe passes downward through the oil storage cylinder, the lifting block and the rectangular groove and is connected with the oil pump through an oil hose, an oil outlet pipe is vertically fixedly provided on the bottom of the lifting block, the upper port of the oil outlet pipe passes upward through the lifting block and is connected with the inner cavity of the oil storage cylinder, and the lower port of the oil outlet pipe passes downward through the rectangular groove and extends to directly above the lubricating oil tank.

[0012] As an optimized solution, the detection assembly includes a drive motor and a torque meter fixedly arranged on the top of the detection platform, one end of the torque meter is connected to the output end of the drive motor through a coupling, and the other end of the torque meter is fixedly installed with a drive gear. A torque and speed display is provided on the top of the detection platform, and the drive motor and the torque meter are both electrically connected to the torque and speed display.

[0013] As an optimized solution, a horizontally arranged position-adjusting telescopic cylinder is fixedly provided at the end of the supporting L-shaped seat, and the telescopic end of the position-adjusting telescopic cylinder is fixedly connected to the sliding plate.

[0014] As an optimized solution, two horizontally arranged control telescopic cylinders are fixedly provided on the top of the detection platform, and the telescopic ends of the two control telescopic cylinders are fixedly connected to the two sliding blocks respectively. Two vertically arranged drive telescopic cylinders are fixedly provided on the inner top of the fixed L-shaped plate, and the telescopic ends of the drive telescopic cylinders are fixedly connected to the pressure plate.

[0015] As an optimized solution, two horizontally arranged hydraulic telescopic cylinders are fixedly provided at the end of the supporting L-shaped seat, and the telescopic ends of the two hydraulic telescopic cylinders are fixedly connected to the two supporting L-shaped plates respectively. The two clamping L-shaped plates located on the same side are fixedly connected through a driving plate, and two horizontally arranged electric-controlled telescopic cylinders are fixedly provided on the inner top of the supporting L-shaped seat, and the telescopic ends of the two electric-controlled telescopic cylinders are fixedly connected to the two driving plates respectively.

[0016] As an optimized solution, a horizontally arranged horizontal telescopic cylinder is fixedly provided on the top of the supporting L-shaped seat, and 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 on the end of the sliding L-shaped plate, and the telescopic end of the vertical telescopic cylinder is fixedly connected to the lifting plate.

[0017] As an optimized solution, a vertically arranged pneumatic telescopic cylinder is fixedly provided on the top of the detection platform, and the telescopic end of the pneumatic telescopic cylinder is fixedly connected to the lifting block.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. When positioning the secondary balancing mechanism, first place the secondary balancing mechanism on top of the two supporting L-shaped plates (such as Figure 1 As shown), the vertical telescopic cylinder drives the lifting plate to slide downward to the preset position, the horizontal telescopic cylinder drives the sliding L-shaped plate to slide horizontally, and when the lifting plate contacts the secondary balancing mechanism, the secondary balancing mechanism is adjusted for the first time until the opposite side walls of the secondary balancing mechanism contact the lifting plate and the supporting L-shaped plate correspondingly, the two electrically-controlled telescopic cylinders respectively drive the two driving plates to move toward each other, and then drive the four clamping L-shaped plates to slide toward each other, and when the two clamping L-shaped plates on one side contact the secondary balancing mechanism, the secondary balancing mechanism is adjusted for the second time until the four clamping L-shaped plates contact the opposite ends of the secondary balancing mechanism, at this time the arc plate is located below the arc structure of the secondary balancing mechanism, the two hydraulic telescopic cylinders drive the two clamping L-shaped plates to slide back to back until the supporting L-shaped plate is completely separated from the secondary balancing mechanism, the lifting plate and the sliding L-shaped plate are reset, and the four arc plates support the secondary balancing mechanism, and the positioning telescopic cylinder drives the sliding plate to slide to the preset position, at this time the secondary balancing mechanism is located directly above the supporting plate, and the six lower positioning columns correspond one by one to the six positioning holes , the lifting and telescopic cylinder drives the support plate to move upward, and the six lower positioning columns are respectively inserted into the six positioning holes until the support plate contacts the secondary balancing mechanism and lifts up the secondary balancing mechanism, the arc plate is separated from the secondary balancing mechanism, the clamping L-shaped plate is reset, and then the sliding plate and the support plate are reset successively. At this time, the driving gear is meshed with the active gear of the secondary balancing mechanism, and the telescopic cylinder is driven to drive the pressure plate to slide downward, and the upper positioning column is inserted into the positioning hole until the bottom of the upper positioning column is inserted into the conical positioning groove. At this time, the rubber pad is against the secondary balancing mechanism, and the positioning of the secondary balancing mechanism is completed. In the process of detecting the positioned secondary balancing mechanism, the secondary balancing mechanism to be detected can be placed on the supporting L-shaped plate and adjusted to a state supported by four arc plates. The device can quickly position the secondary balancing mechanism on the top of the support plate, which greatly reduces the time for adjusting the relative position of the secondary balancing mechanism and the support plate and the time for fixing the secondary balancing mechanism and the support plate, and the fixing process is simple, which reduces the workload and improves the detection efficiency. 2. After the secondary balancing mechanism is fixed on the support plate, the top of the profiling block abuts against the top of the oil inlet groove, and the oil inlet groove is not connected to the positioning hole. When adding lubricating oil to the lubricating oil groove, 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 groove, the sealing gasket abuts against the support plate, and the oil pump extracts the lubricating oil in the lubricating oil tank. The extracted lubricating oil enters the oil inlet groove through the oil hose, the oil inlet pipe, the lower oil groove and the upper oil groove in turn. Because the profiling block occupies most of the volume of the oil inlet groove, the inside of the oil inlet groove is filled with only a very small amount of lubricating oil. Then the lubricating oil enters the lubricating oil groove through the oil inlet port until the lubricating oil groove is filled with lubricating oil. The device can automatically inject lubricating oil into the positioned secondary balancing mechanism, and the injected lubricating oil can fully cover the lubricating oil groove. Therefore, the oil filling process of the device is simple and the oil filling effect is good, which not only further improves the detection efficiency, but also effectively protects the secondary balancing mechanism. 3. After the secondary balancing mechanism is tested, the lifting block moves downward, the oil inlet pipe is separated from the support plate, and the lubricating oil inside the secondary balancing mechanism and the upper and lower oil grooves falls downward into the oil storage cylinder. The lubricating oil in the oil storage cylinder flows back to the lubricating oil tank through the oil outlet pipe. This device can reduce the waste of lubricating oil and improve the practicality of the device. 4. When disassembling the secondary balancing mechanism after inspection, the pressure plate and the sliding block are reset in turn, thereby releasing the restriction on the secondary balancing mechanism. The staff can directly remove the secondary balancing mechanism on the support plate. The device can quickly remove the secondary balancing mechanism after inspection, and the process is simple, which further improves the practicality and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of 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 are not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the sliding plate and the top of the supporting plate of the present invention; Figure 3 It is a schematic diagram of the structure inside the profiling block and the support plate of the present invention; Figure 4 It is a structural schematic diagram of the secondary balancing mechanism of the present invention; Figure 5 It is a schematic diagram of the structure inside the secondary balancing mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the fixing assembly of the present invention; Figure 7 It is a structural schematic diagram of the regulating assembly of the present invention; Figure 8 This is a schematic diagram of the structure of the present invention supporting the top of the L-shaped seat; Fig. 9 It is a schematic diagram of the structure inside the avoidance groove of the present invention.

[0021] In the figure: 1-testing table; 2-testing assembly; 3-torque speed display instrument; 4-coupling; 5-torque meter; 6-fixing assembly; 7-fixing L-shaped plate; 8-adjusting assembly; 9-supporting L-shaped seat; 10-sliding block; 11-control telescopic cylinder; 12-oil hose; 13-oil pump; 14-lubricating oil tank; 15-driving gear; 16-driving motor; 17-positioning telescopic cylinder; 18-profile block; 19-lower positioning column; 20-supporting plate; 21-lifting telescopic cylinder; 22-sliding plate; 23-rectangular groove; 24-pneumatic telescopic cylinder; 25-oil filling assembly; 26-oil storage cylinder; 27-lower oil tank; 28 -upper oil groove; 29-conical positioning groove; 30-sealing pad; 31-oil inlet pipe; 32-lifting block; 33-oil outlet pipe; 34-positioning hole; 35-secondary balancing mechanism; 36-driving gear; 37-oil inlet groove; 38-oil inlet port; 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-electrically controlled 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 DESCRIPTION

[0022] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0023] like Figures 1 to 9As shown, a dynamic torque detection device for a secondary balancing mechanism of an engine comprises a detection platform 1, wherein a detection component 2, two fixing components 6 and an adjustment component 8 are sequentially arranged on the top of the detection platform 1 along its length direction, an oil injection component 25 and a sliding plate 22 arranged to slide horizontally are arranged at a position between the two fixing components 6 on the top of the detection platform 1, a horizontally arranged support plate 20 is arranged above the sliding plate 22, two lifting and telescopic cylinders 21 are vertically fixedly arranged 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 arranged on the top of the support plate 20, and the profiling block 18 is connected to the secondary balancing mechanism 35 The oil inlet groove 37 is arranged in a contoured manner, and 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, and 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 arranged inside the profiling block 18, and 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 arranged inside the support plate 20, and the lower port of the lower oil groove 27 downwardly penetrates the support plate 20.

[0024] The fixing assembly 6 includes a sliding block 10 which is horizontally slidable, a fixed L-shaped plate 7 is fixedly provided on the top of the sliding block 10, a pressure plate 42 which is vertically slidably provided on the end of the fixed L-shaped plate 7, and three upper positioning columns 40 are vertically fixedly provided on the bottom of the pressure plate 42. The arrangement of the three upper positioning columns 40 is the same as the arrangement of the three positioning holes 34 on one side of the secondary balancing mechanism 35. A rubber pad 41 is mounted on the upper outer wall of the upper positioning column 40. The diameter of the upper positioning column 40 is larger than the diameter of the lower positioning column 19 and smaller than the diameter of the positioning hole 34. A conical positioning groove 29 is provided on the top of the lower positioning column 19, and the bottom of the upper positioning column 40 is a conical structure.

[0025] The adjustment component 8 includes a support L-shaped seat 9 fixedly arranged on the top of the detection table 1, and two support L-shaped plates 44 slidably arranged toward or away from each other are provided at the end of the support L-shaped seat 9, and two clamping L-shaped plates 46 are provided at the top of the support L-shaped seat 9 on both sides of the support L-shaped plate 44, and the four clamping L-shaped plates 46 are opposite to each other and the two opposite clamping L-shaped plates 46 are slid toward or away from each other, and the lower ends of the four clamping L-shaped plates 46 facing each other are fixed with arc plates 51, and the arc plates 51 are arranged in accordance with the arc structure at the bottom of the secondary balancing mechanism 35, and the top of the support L-shaped seat 9 is provided with an avoidance groove 52 that is penetrated, and a sliding L-shaped plate 54 is provided in the avoidance groove 52, and the opposite side walls of the sliding L-shaped plate 54 are horizontally slidably connected with the relative inner walls of the avoidance groove 52, and one end of the sliding L-shaped plate 54 extends horizontally to the outside of the support L-shaped seat 9 and is provided with a lifting plate 49 that is vertically slidably arranged.

[0026] The oil filling assembly 25 includes a lifting block 32 that is vertically lifted and lowered, 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 that is vertically provided is fixedly provided on the inner bottom of the oil storage cylinder 26, the 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 penetrated through the top of the inspection platform 1, a lubricating oil tank 14 with an opening at the top is provided below the inspection platform 1, an oil pump 13 is provided in the lubricating oil tank 14, the lower end 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 with the oil pump 13 through the oil passing hose 12, an oil outlet pipe 33 is vertically fixedly provided on the bottom of the lifting block 32, the 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 cylinder 26, and the lower end of the oil outlet pipe 33 passes downward through the rectangular groove 23 and extends to just above the lubricating oil tank 14.

[0027] The detection component 2 includes 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 through a coupling 4, and the other end of the torque meter 5 is fixedly installed with a drive gear 15. A torque and speed display 3 is provided on the top of the detection platform 1, and the drive motor 16 and the torque meter 5 are both electrically connected to the torque and speed display 3.

[0028] A horizontally arranged position-adjusting telescopic cylinder 17 is fixedly provided at the end of the supporting L-shaped seat 9 , and the telescopic end of the position-adjusting telescopic cylinder 17 is fixedly connected to the sliding plate 22 .

[0029] 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 driving telescopic cylinders 43 are fixedly provided on the inner top of the fixed L-shaped plate 7, and the telescopic ends of the driving telescopic cylinders 43 are fixedly connected to the pressure plate 42.

[0030] 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 through a driving plate 47. Two horizontally arranged electric-controlled 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-controlled telescopic cylinders 48 are fixedly connected to the two driving plates 47 respectively.

[0031] A horizontally arranged horizontal telescopic cylinder 53 is fixedly provided on the top of the supporting L-shaped seat 9, and the telescopic end of the horizontal telescopic cylinder 53 is fixedly connected to the 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 the telescopic end of the vertical telescopic cylinder 50 is fixedly connected to the lifting plate 49.

[0032] A vertically arranged pneumatic telescopic cylinder 24 is fixedly provided on the top of the testing platform 1 , and a telescopic end of the pneumatic telescopic cylinder 24 is fixedly connected to the lifting block 32 .

[0033] The working principle of this device is: When positioning the secondary balancing mechanism 35, first place the secondary balancing mechanism 35 on top of the two supporting L-shaped plates 44 (such as Figure 1 As shown in the figure, 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 balancing mechanism 35, the secondary balancing mechanism 35 is adjusted for the first time until the opposite side walls of the secondary balancing mechanism 35 contact the lifting plate 49 and the supporting L-shaped plate 44 respectively. The two electrically controlled telescopic cylinders 48 respectively drive the two driving plates 47 to move toward each other, and then drive the four clamping L-shaped plates 46 to slide toward each other. When the two clamping L-shaped plates 46 on one side contact the secondary balancing mechanism 35, the secondary balancing mechanism 35 is adjusted for the second time. , until the four clamping L-shaped plates 46 contact the opposite ends of the secondary balancing mechanism 35, at this time the arc plate 51 is located below the arc structure of the secondary balancing mechanism 35, the two hydraulic telescopic cylinders 45 drive the two clamping L-shaped plates 46 to slide back to back, until the supporting L-shaped plate 44 is completely separated from the secondary balancing mechanism 35, the lifting plate 49 and the sliding L-shaped plate 54 are reset, the four arc plates 51 support the secondary balancing mechanism 35, the positioning telescopic cylinder 17 drives the sliding plate 22 to slide to the preset position, at this time the secondary balancing mechanism 35 is located directly above the supporting plate 20, and the six lower positioning columns 19 correspond to the six positioning holes 34 one by one The lifting and telescopic cylinder 21 drives the support plate 20 to move upward, and the six lower positioning columns 19 are respectively inserted into the six positioning holes 34 until the support plate 20 contacts the secondary balancing mechanism 35 and lifts the secondary balancing mechanism 35, the arc plate 51 is separated from the secondary balancing mechanism 35, and the clamping L-shaped plate 46 is reset. Then the sliding plate 22 and the support plate 20 are reset successively. At this time, the driving gear 15 is meshed with the driving gear 36 of the secondary balancing mechanism 35, and the driving and telescopic cylinder 43 drives the pressing plate 42 to slide downward, and 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 is against the secondary balancing mechanism 35, and the positioning of the secondary balancing mechanism 35 is completed. During the detection of the positioned secondary balancing mechanism 35, the secondary balancing mechanism 35 to be detected can be placed on the supporting L-shaped plate 44 and adjusted to a state where it is supported by the four arc-shaped plates 51. The device can quickly position the secondary balancing mechanism 35 on the top of the support plate 20, greatly reducing the time for adjusting the relative position of the secondary balancing mechanism 35 and the support plate 20 and the time for fixing the secondary balancing mechanism 35 and the support plate 20, and the fixing process is simple, which reduces the workload and improves the detection efficiency. After the secondary balancing 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, and the oil inlet groove 37 is not connected to 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 end of the oil inlet pipe 31 abuts against the lower end of the lower oil groove 27, and the sealing gasket 30 abuts against the support plate 20. The oil pump 13 extracts the lubricating oil in the lubricating oil tank 14, and the extracted lubricating oil passes through the oil hose 12, the oil inlet pipe 31, the lower oil groove 27 and the upper oil groove 28 in sequence. Entering into the oil inlet groove 37, because the profiling block 18 occupies most of the volume of the oil inlet groove 37, the inside of the oil inlet groove 37 is filled with only a very small amount of lubricating oil, and 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. The device can automatically inject lubricating oil into the positioned secondary balancing mechanism 35, and the injected lubricating oil can fully cover the lubricating oil groove 39. Therefore, the oil filling process of the device is simple and the oil filling effect is good, which not only further improves the detection efficiency, but also effectively protects the secondary balancing mechanism 35; When testing the secondary balancing mechanism 35, the driving motor 16 drives the torque meter 5 and the driving gear 15 to rotate, and then drives the driving gear 36 to rotate, so as to drive the secondary balancing mechanism 35. The torque speed display 3 can display the speed of the driving motor 16 and the torque value detected by the torque meter 5 in real time, and judge whether the secondary balancing mechanism 35 is qualified by the torque value; After the secondary balancing mechanism 35 is inspected, 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 balancing mechanism 35 and the upper oil groove 28 and the lower oil groove 27 falls downward into the oil storage cylinder 26. The lubricating oil in the oil storage cylinder 26 flows back to the lubricating oil tank 14 through the oil outlet pipe 33. The device can reduce the waste of lubricating oil and improve the practicality of the device. When disassembling the secondary balancing mechanism 35 after inspection, the pressure plate 42 and the sliding block 10 are reset in succession, thereby releasing the restriction on the secondary balancing mechanism 35. The staff can directly remove the secondary balancing mechanism 35 on the support plate 20. The device can quickly remove the secondary balancing mechanism 35 after inspection, and the process is simple, which further improves the practicality and convenience of the device.

[0034] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification 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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