CN113358554B - Lubricating grease and lubricating oil product test device and test method - Google Patents
Lubricating grease and lubricating oil product test device and test method Download PDFInfo
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- CN113358554B CN113358554B CN202110566129.9A CN202110566129A CN113358554B CN 113358554 B CN113358554 B CN 113358554B CN 202110566129 A CN202110566129 A CN 202110566129A CN 113358554 B CN113358554 B CN 113358554B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/30—Oils, i.e. hydrocarbon liquids for lubricating properties
Abstract
The invention discloses an oil product testing device and method for lubricating grease and lubricating oil, wherein the device comprises a first gear box, a second gear box, a mechanical loading device, a movable plate, a workbench and a sensor system; the sensor system comprises a dynamic torque sensor for detecting the load condition of the speed reducer, a temperature sensor for monitoring the temperature rise condition of the speed reducer, a vibration sensor for monitoring the shake condition of the speed reducer and an iron powder measuring instrument for detecting the change condition of iron powder of the speed reducer. The loading device ensures the loading of the closed system by providing two equal and opposite moments. The driving device is a power motor, compensates power loss of a closed system caused by friction, stirring oil and the like, and keeps the system to run at a rated speed. The invention can carry out comparison tests, and the test device and the test method have the advantages of small test error, simple scheme, covering of various reducers (20E to 320E and the like), low energy consumption (reduced by 90 percent), low time consumption and strong economic applicability.
Description
Technical Field
The invention belongs to the field of test equipment, and particularly relates to an oil product test device and a test method for lubricating grease and lubricating oil.
Background
In order to research the grease suitable for the RV reducer, the grease is optimized and upgraded, a reducer grease fatigue test is required to be carried out, the data change rule of iron powder content, efficiency, jitter, temperature rise, performance retention, fatigue life and the like in the whole fatigue period is obtained, and meanwhile, comparison test data is obtained. For grease fatigue tests which are short for days and long for one year, the existing power + loading double-motor scheme, power motor + magnetic powder brake scheme and the like have huge energy and time consumption, and meanwhile, no proper scheme exists, and a comparison test cannot be effectively carried out.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an oil product testing device and an oil product testing method for lubricating grease and lubricating oil. The test device and the test method have the advantages of small experimental error, simple scheme, covering of various reducers (20E to 320E and the like), low energy consumption (reduced by 90 percent), low time consumption and strong economic applicability.
The invention adopts the following specific technical scheme:
the invention provides an oil product testing device of lubricating grease and lubricating oil, which comprises a first gear box, a second gear box, a mechanical loading device, a moving plate, a workbench and a sensor system, wherein the first gear box is connected with the second gear box; the sensor system comprises a dynamic torque sensor for detecting the load condition of the speed reducer, a temperature sensor for monitoring the temperature rise condition of the speed reducer, a vibration sensor for monitoring the shake condition of the speed reducer, and an iron powder measuring instrument for detecting the change condition of iron powder of the speed reducer;
the first gear box and the second gear box are respectively arranged on two sides of the workbench through a movable plate, and the movable plate can move on the table top of the workbench to adjust the distance between the first gear box and the second gear box;
the first gear box and the second gear box are both provided with a small gear end and a large gear end, the small gear end and the large gear end are driven through a gear assembly in the gear box, the first gear box is connected with a power compensation motor, and the power compensation motor is used for compensating the power loss of a system and maintaining the running of the test process at a rated speed;
the small gear ends of the first gear box and the second gear box are arranged oppositely, the small gear ends of the two gear boxes are connected with the input end of a speed reducer to be tested, and the output ends of the two speed reducers to be tested are respectively connected with the two ends of the dynamic torque sensor through a coupler;
the large gear ends of the first gear box and the second gear box are arranged oppositely and connected through a mechanical loading device, and the mechanical loading device provides two equal and opposite torques for a test process.
Preferably, the mechanical loading device comprises a first loading coupler, a second loading coupler, a fixing pin, a T-shaped bolt and an elastic deformation shaft; the first loading coupler is connected with the large gear end of the second gear box, and a fixed pin is arranged on the first loading coupler; the second loading coupler is fixedly connected with one end of the elastic deformation shaft, and the other end of the elastic deformation shaft is connected with the large gear end of the first gear box; the second loading coupler is driven to elastically deform by applying a target torque to the second loading coupler, and then the first loading coupler and the second loading coupler are coaxially and fixedly connected through coaxial connection of T-shaped bolts. The mechanical loading device further comprises a loading rod and a loading block for applying a target torque to the second loading coupler; the loading rod is detachably connected with the second loading coupler, and the loading block is arranged on the loading rod and used for applying target torque to the second loading coupler to enable the elastic deformation shaft to generate elastic deformation.
The loading mode of the mechanical loading device is mechanical weight loading. Firstly, a fixed pin is inserted into the first loading coupler, and the first coupler is fixed so that the first coupler cannot rotate. And secondly, placing a loading rod on a second loading coupler and placing a proper weight to enable the second loading coupler to rotate to generate a displacement difference so as to obtain a target torque, screwing the T-shaped bolt at the moment, and maintaining the torque in the system unchanged by means of elastic deformation of the elastic deformation shaft.
Preferably, the workbench is further provided with a third bracket for mounting the elastic deformation shaft and a fourth bracket for mounting the mechanical loading device; the third bracket and the fourth bracket are configured to coaxially arrange the elastic deformation shaft, the mechanical loading device, the first gear box and the large gear end of the second gear box.
Preferably, the movable plate is connected with the workbench in a sliding manner, and the movable plate is arranged on a first sliding rail arranged on the workbench along the length direction of the workbench.
Preferably, the workbench is further provided with a first bracket for mounting a speed reducer and a second bracket for mounting a dynamic torque sensor; the first bracket and the second bracket are configured to coaxially arrange the reducer, the dynamic torque sensor, the first gear box and the pinion end of the second gear box.
Preferably, the first support and the workbench are connected in a sliding manner, the first support is connected to a second sliding rail arranged on the workbench in a sliding manner, and the second sliding rail is arranged in a direction parallel to the width direction of the workbench and is perpendicular to the length direction.
Preferably, the moving plate or the first support slides through a lead screw hand wheel, that is, the moving plate or the first support slides through a threaded fit with a lead screw of the lead screw hand wheel by rotating the lead screw hand wheel.
Preferably, the first gear box and the second gear box are internally provided with temperature sensors and cooling devices, so that the internal temperature of the gear boxes can be detected in real time, and the temperature can be guaranteed within a reasonable range. Preferably, the transmission ratio of the large gear end to the small gear end of the first gear box to the second gear box is 1: 1.5; the gears in the first gear box and the second gear box are selected to be straight toothed spur gears, and the first gear box and the second gear box are used for amplifying the input torque of the speed reducer and ensuring that the elastic deformation shaft at the loading end has enough deformation when the input torque is small.
The invention also discloses a test method of the oil product test device for the lubricating grease and the lubricating oil, wherein the test device can be used for performing a grease performance comparison test, a reducer performance comparison test, a lubricating grease performance (or reducer performance) limit test and a lubricating oil performance comparison test;
when a grease performance comparison test is carried out, two speed reducers with the same model in the same batch are selected, the two speed reducers are respectively installed at the small gear ends of a first gear box and a second gear box, and the output ends of the two speed reducers are respectively connected with the two ends of a dynamic torque sensor through a coupler; a dynamic torque sensor, a temperature sensor for monitoring the temperature rise of the speed reducer, a vibration sensor and an iron powder measuring instrument are arranged; different grease is respectively injected into the two reducers, and the grease becomes the only variable at the moment;
recording the change rule of the iron powder content in the speed reducer along with time through an iron powder measuring instrument, and reflecting the lubricating capacity of the grease through the change of the iron powder content; the low-temperature torque performance of the grease can be monitored by detecting the change of the torque value through the dynamic torque sensor and monitoring the change of the power of the compensation motor; by observing the leakage event of the grease, the leakage-proof performance of the grease can be tested; the temperature sensor and the vibration sensor are used for detecting the state of the speed reducer, and the temperature rise change trend and the vibration change trend are obtained.
When the performance comparison test of the speed reducers is carried out, two speed reducers to be compared are selected, the two speed reducers adopt the same grease, the speed reducers become the only variable at the moment, and the performance of the two speed reducers is compared through detection signals of the sensor system.
When the limit test of the performance of the lubricating grease (or the performance of the speed reducer) is carried out, if the limit life of the grease or the speed reducer is verified, one test runs along with the other test, and the accuracy of the test can be ensured by simultaneously carrying out two speed reducer tests.
When the performance comparison test of the lubricating oil is carried out, two pairs of involute straight toothed spur gears with completely consistent parameters are arranged in the two gear boxes, and the lubricating oil with different types is respectively injected, so that the performance of the two lubricating oils can be compared and tested.
Drawings
FIG. 1 is a schematic structural diagram of an oil testing apparatus for lubricating grease and lubricating oil according to an embodiment of the present invention;
FIG. 2 is a top cross-sectional view of the test device of the present invention;
FIG. 3 is a schematic structural diagram of a loading device in the embodiment;
FIG. 4 is a cross-sectional view of the loading device of the present invention;
FIG. 5 is a cross-sectional view of a retarder bracket of the present invention;
FIG. 6 is a cross-sectional view of a gearbox of the present invention;
fig. 7 is a schematic diagram of the working principle of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, an embodiment of the present invention provides an oil testing apparatus for grease and lubricating oil, which includes a first gear box 1, a second gear box 2, a mechanical loading device 4, a moving plate 8, a workbench 10 and a sensor system; the sensor system comprises a dynamic torque sensor 3 for detecting the load condition of the speed reducer, a temperature sensor for monitoring the temperature rise condition of the speed reducer, a vibration sensor for monitoring the shake condition of the speed reducer, and an iron powder measuring instrument for detecting the change condition of iron powder of the speed reducer.
The first gear box 1 and the second gear box 2 are respectively arranged on two sides of the workbench through a moving plate 8, and the moving plate 8 can move on the workbench table surface to adjust the distance between the first gear box 1 and the second gear box 2.
In this embodiment, the first gear box 1 and the second gear box 2 are identical and each has a small gear end and a large gear end, and the small gear end and the large gear end are driven by a gear assembly inside the gear box, wherein the first gear box is connected with a power compensation motor, and the power compensation motor is used for compensating the power loss of the system and maintaining the test process to operate at a rated speed. In the embodiment, the transmission ratio of the large gear end to the small gear end of the first gear box to the second gear box is 1: 1.5; the gears in the first gear box and the second gear box are selected to be straight toothed spur gears, and the first gear box and the second gear box are used for amplifying the input torque of the speed reducer and ensuring that the elastic deformation shaft at the loading end has enough deformation when the input torque is small.
The small gear ends of the first gear box 1 and the second gear box 2 are arranged oppositely, the small gear ends of the two gear boxes are connected with the input ends of the speed reducers 61 and 62 to be tested, and the output ends of the two speed reducers to be tested are respectively connected with the two ends of the dynamic torque sensor 3 through a coupler 31; the large gear ends of the first gear box 1 and the second gear box 2 are arranged oppositely and connected through a mechanical loading device 4, and the mechanical loading device provides two equal and opposite torques for a test process.
As shown in fig. 4 and 5, in a preferred embodiment, the mechanical loading device comprises a first loading coupling 41, a second loading coupling 42, a fixing pin 44, a T-bolt and an elastically deformable shaft 5; the first loading coupler 41 is connected with the large gear end of the second gear box 2 through a shaft 46, and a fixed pin 44 is arranged on the first loading coupler; the second loading coupler is fixedly connected with one end of the elastic deformation shaft 5, and the other end of the elastic deformation shaft is connected with the large gear end of the first gear box; the second loading coupler is driven to elastically deform by applying a target torque to the second loading coupler, and then the first loading coupler and the second loading coupler are coaxially and fixedly connected through coaxial connection of T-shaped bolts.
The mechanical loading device further comprises a loading rod 43 and a loading block for applying a target torque to the second loading coupler; the loading rod is detachably connected with the second loading coupler, and the loading block is arranged on the loading rod and used for applying target torque to the second loading coupler to enable the elastic deformation shaft to generate elastic deformation. The loading mode of the mechanical loading device is mechanical weight loading. First, the fixing pin 44 is inserted into the first loading coupling 41, and the first coupling 41 is fixed so as not to rotate. Secondly, the loading rod 43 is placed on the second loading coupler 42, a proper weight is placed on the loading rod, the second loading coupler rotates to generate a displacement difference, a target torque is obtained, the T-shaped bolt is screwed at the moment, and the torque in the system is kept unchanged by means of elastic deformation of the elastic deformation shaft.
As shown in fig. 2-4, in an embodiment of the present invention, the working platform 10 is further provided with a third bracket 34 for mounting the elastic deformation shaft and a fourth bracket 33 for mounting the mechanical loading device; the third bracket and the fourth bracket are configured to coaxially arrange the elastic deformation shaft, the mechanical loading device, the first gear box and the large gear end of the second gear box.
Preferably, as shown in fig. 2, the moving plate 8 is slidably connected to the workbench, and the moving plate is disposed on a first slide rail 81 disposed on the workbench along the length direction of the workbench. The workbench is also provided with a first bracket 6 for mounting a speed reducer and a second bracket for mounting a dynamic torque sensor; the first bracket 6 and the second bracket are configured such that pinion ends of the speed reducer, the dynamic torque sensor, the first gear case, and the second gear case are coaxially disposed. First support 6 with the workstation is sliding connection, and first support slidable connects on the second slide rail that sets up on the workstation, the second slide rail sets up to the width direction setting that is on a parallel with the workstation to be perpendicular with length direction.
As shown in fig. 5, the mounting of the speed reducer to be tested of the present invention will be described by taking a speed reducer to be tested 62 connected to a first gear box as an example. The reducer 62 to be tested is an RV reducer, and the reducer 62 is installed on the first support 6 through a deep groove ball bearing 66 and a sealing ring; the reduction gear 62 has an output flange 64 and an input shaft 63, wherein the input shaft 63 is connected to the pinion end of the first gearbox via a transfer shaft 65, and the output flange 64 is connected to the dynamic torque sensor 3 via the coupling 31.
The moving plate 8 or the first support 6 slides through the lead screw hand wheel 9, namely the moving plate or the first support is in threaded fit with a lead screw of the lead screw hand wheel, and the moving plate or the first support slides by rotating the lead screw hand wheel.
As shown in fig. 6, the gear case of the present invention will be described by taking the second gear case 2 as an example. The second gearbox 2 comprises a box body 23, a large gear 21 (the gear shaft of which is a large gear end) and a small gear 22 (the gear shaft of which is a small gear end) which are positioned in the box body, and the large gear and the small gear are in meshing transmission; taking the installation of the pinion as an example, the gear shaft of the pinion is provided with a shaft sleeve 24 and is installed on the box body through a cylindrical roller bearing 26, a bearing end cover 25 is connected with the box body 23 through a bolt and fastens the cylindrical roller bearing 25, and a sealing ring 27 is used for realizing the sealing between the bearing end cover and the gear shaft. The lock nut 29 and the washer 28 are used to lock the axial position of the gear shaft.
As shown in the schematic diagram of the invention in FIG. 7, gears Z1, Z2, Z3 and Z4 in the schematic diagram form two gear boxes respectively (Z1 and Z2 are the same, and Z3 and Z4 are phase-change), and shaft I, shaft II, shaft III and shaft IV connect the whole mechanical system in series. The gears Z1, Z2, Z3, Z4 and the shafts I, II, III, IV form a mechanical closing system.
The loading device ensures the loading of the closed system by providing two equal and opposite moments.
The driving device is a power motor, compensates power loss of a closed system caused by friction, stirring oil and the like, and keeps the system to run at a rated speed.
Taking the detection of the RV reducer as an example, the using method of the invention is as follows:
installation: and rotating a gear box and an RV reducer support hand wheel, keeping the gear box and the RV reducer support hand wheel away from the torque sensor, installing an RV accelerator, and injecting grease after sealing. And reversely rotating the hand wheel to connect all parts.
Loading: the loading fixing pin is inserted into the loading coupling 1 to fix the coupling 1 against rotation. The loading rod is placed on the loading coupler 2, a proper weight is added to enable the torque sensor to reach a target torque, the T-shaped bolt is screwed, the elastic deformation generated by the elastic shaft maintains the torque of the system, and the weight and the loading rod are dismounted.
Experiment: and starting a test, monitoring the data of the iron powder content, temperature rise, vibration, efficiency and the like of the speed reducer by using an iron powder measuring instrument, a temperature sensor, an acceleration sensor and a servo motor, and obtaining a corresponding change trend.
The invention is further described below with reference to specific tests, and the test device of the invention can unify variables and eliminate experimental errors. The test device can be used for performing tests such as a grease performance comparison test, a reducer performance comparison test, a lubricating grease performance (or reducer performance) limit test, a lubricating oil performance comparison test and the like;
when a grease performance comparison test is carried out, two speed reducers with the same model in the same batch are selected, the two speed reducers are respectively installed at the small gear ends of a first gear box and a second gear box, and the output ends of the two speed reducers are respectively connected with the two ends of a dynamic torque sensor through a coupler; a dynamic torque sensor, a temperature sensor for monitoring the temperature rise of the speed reducer, a vibration sensor and an iron powder measuring instrument are arranged; different grease is respectively injected into the two reducers, and the grease becomes the only variable at the moment;
recording the change rule of the iron powder content in the speed reducer along with time through an iron powder measuring instrument, and reflecting the lubricating capacity of the grease through the change of the iron powder content; the low-temperature torque performance of the grease can be monitored by detecting the change of the torque value through the dynamic torque sensor and monitoring the change of the power of the compensation motor; by observing the leakage event of the grease, the leakage-proof performance of the grease can be tested; the temperature sensor and the vibration sensor are used for detecting the state of the speed reducer, and the temperature rise change trend and the vibration change trend are obtained.
When the performance comparison test of the speed reducers is carried out, two speed reducers to be compared are selected, the two speed reducers adopt the same grease, the speed reducers become the only variable at the moment, and the performance of the two speed reducers is compared through detection signals of the sensor system.
When the limit test of the performance of the lubricating grease (or the performance of the speed reducer) is carried out, if the limit life of the grease or the speed reducer is verified, one test runs along with the other test, and the accuracy of the test can be ensured by simultaneously carrying out two speed reducer tests.
When the performance comparison test of the lubricating oil is carried out, two pairs of involute straight toothed spur gears with completely consistent parameters are arranged in the two gear boxes, and the lubricating oil with different types is respectively injected, so that the performance of the two lubricating oils can be compared and tested.
The device of the invention can research the wear resistance and wear reduction performance of the lubricating grease. In order to research the anti-wear and anti-friction capability of lubricating grease, the change rule of the iron powder content in the speed reducer along with time needs to be recorded. The content of iron powder can directly react to the lubricating capability of grease, the content of iron powder can quickly rise in a running-in abrasion stage, the content of iron powder stably fluctuates in a stable abrasion stage, the content of iron powder rapidly rises in a severe abrasion stage, and at the moment, the failure of a speed reducer is accelerated. By knowing the abrasion stage of the speed reducer and the change of the iron powder content in each abrasion stage, the place where the grease is deficient can be analyzed, and then the improvement and the upgrading of the grease are carried out in a targeted manner.
The device can be used for researching the low-temperature torque performance of lubricating grease or lubricating oil. Grease in the speed reducer is hardened due to low temperature in winter to cause torque increase. When the torque is increased, the torque of the dynamic torque sensor can be greatly changed, the change of the electric quantity of the motor is monitored by detecting the change of the torque value in the measuring process, and the low-temperature torque performance of the lubricating grease can be monitored.
The device can be used for researching the compatibility of lubricating grease or lubricating oil and a sealing element, the corrosion resistance of rubber and the leakage prevention performance of the lubricating grease. Different greases are installed on two same-batch reducers of the same model, and the leakage-proof performance of the greases can be known by observing the leakage events of the greases.
The lubricating grease is also an important index for judging grease on the temperature rise, the vibration and the sealing performance of the speed reducer. The temperature sensor and the vibration sensor are used for detecting the state of the speed reducer, and the temperature rise change trend, the vibration change trend and the sealing performance are obtained.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A lubricating grease and lubricating oil product test device is characterized by comprising a first gear box, a second gear box, a mechanical loading device, a moving plate, a workbench and a sensor system; the sensor system comprises a dynamic torque sensor for detecting the load condition of the speed reducer, a temperature sensor for monitoring the temperature rise condition of the speed reducer, a vibration sensor for monitoring the shake condition of the speed reducer, and an iron powder measuring instrument for detecting the change condition of iron powder of the speed reducer;
the first gear box and the second gear box are respectively arranged on two sides of the workbench through a movable plate, and the movable plate can move on the table top of the workbench to adjust the distance between the first gear box and the second gear box;
the first gear box and the second gear box are both provided with a small gear end and a large gear end, the small gear end and the large gear end are driven through a gear assembly in the gear box, the first gear box is connected with a power compensation motor, and the power compensation motor is used for compensating the power loss of a system and maintaining the running of the test process at a rated speed;
the small gear ends of the first gear box and the second gear box are arranged oppositely, the small gear ends of the two gear boxes are connected with the input end of a speed reducer to be tested, and the output ends of the two speed reducers to be tested are respectively connected with the two ends of the dynamic torque sensor through a coupler;
the large gear ends of the first gear box and the second gear box are arranged oppositely and connected through a mechanical loading device, and the mechanical loading device provides two equal and reverse torques for a test process;
the mechanical loading device comprises a first loading coupler, a second loading coupler, a fixed pin, a T-shaped bolt and an elastic deformation shaft; the first loading coupler is connected with the large gear end of the second gear box, and a fixed pin is arranged on the first loading coupler; the second loading coupler is fixedly connected with one end of the elastic deformation shaft, and the other end of the elastic deformation shaft is connected with the large gear end of the first gear box; the second loading coupler is coaxially and fixedly connected with the first loading coupler through coaxial connection of a T-shaped bolt after being driven to generate elastic deformation by applying target torque to the second loading coupler;
the mechanical loading device further comprises a loading rod and a loading block for applying a target torque to the second loading coupler; the loading rod is detachably connected with the second loading coupler, and the loading block is arranged on the loading rod and used for applying target torque to the second loading coupler to enable the elastic deformation shaft to generate elastic deformation.
2. The oil product testing device of lubricating grease and lubricating oil according to claim 1, characterized in that the workbench is further provided with a third bracket for mounting the elastic deformation shaft and a fourth bracket for mounting a mechanical loading device; the third bracket and the fourth bracket are configured to coaxially arrange the elastic deformation shaft, the mechanical loading device, the first gear box and the large gear end of the second gear box.
3. The grease and lubricant oil testing device of claim 1, wherein the moving plate is slidably connected to the table, and the moving plate is disposed on a first slide rail disposed on the table along a length direction of the table.
4. The oil product testing device of lubricating grease and lubricating oil according to claim 1, characterized in that the workbench is further provided with a first bracket for mounting a reducer and a second bracket for mounting a dynamic torque sensor; the first bracket and the second bracket are configured to coaxially arrange the reducer, the dynamic torque sensor, the first gear box and the pinion end of the second gear box.
5. The grease and lubricant oil testing device of claim 4, wherein the first bracket is slidably connected to the table, the first bracket is slidably connected to a second slide rail provided on the table, and the second slide rail is provided parallel to the width direction of the table and perpendicular to the length direction.
6. The lubricating grease and lubricating oil product test device of claim 3 or 5, wherein the moving plate or the first bracket slides through the lead screw hand wheel, that is, the moving plate or the first bracket slides through the screw thread fit with the lead screw of the lead screw hand wheel by rotating the lead screw hand wheel.
7. The oil product testing device of lubricating grease and lubricating oil as claimed in claim 1, wherein the first gear box and the second gear box are internally provided with temperature sensors and cooling devices to detect the internal temperature of the gear boxes in real time and ensure that the temperature is within a reasonable range.
8. A test method of an oil product test device based on the lubricating grease and lubricating oil of claim 1, wherein the test device can perform a grease performance comparison test and a reducer performance comparison test;
when a grease performance comparison test is carried out, two speed reducers with the same model in the same batch are selected, the two speed reducers are respectively installed at the small gear ends of a first gear box and a second gear box, and the output ends of the two speed reducers are respectively connected with the two ends of a dynamic torque sensor through a coupler; a dynamic torque sensor, a temperature sensor for monitoring the temperature rise of the speed reducer, a vibration sensor and an iron powder measuring instrument are arranged; different grease is respectively injected into the two reducers, and the grease becomes the only variable at the moment;
recording the change rule of the iron powder content in the speed reducer along with time through an iron powder measuring instrument, and reflecting the lubricating capacity of the grease through the change of the iron powder content; the low-temperature torque performance of the grease can be monitored by detecting the change of the torque value through the dynamic torque sensor and monitoring the change of the power of the compensation motor; by observing the leakage event of the grease, the leakage-proof performance of the grease can be tested; detecting the state of the speed reducer through a temperature sensor and a vibration sensor to obtain a temperature rise change trend and a vibration change trend;
when the performance comparison test of the speed reducers is carried out, two speed reducers to be compared are selected, the two speed reducers adopt the same grease, the speed reducers become the only variable at the moment, and the performance of the two speed reducers is compared through detection signals of the sensor system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566129.9A CN113358554B (en) | 2021-05-24 | 2021-05-24 | Lubricating grease and lubricating oil product test device and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110566129.9A CN113358554B (en) | 2021-05-24 | 2021-05-24 | Lubricating grease and lubricating oil product test device and test method |
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| CN113358554A CN113358554A (en) | 2021-09-07 |
| CN113358554B true CN113358554B (en) | 2022-04-29 |
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Address after: 317600 Yucheng street, Yuhuan City, Taizhou, Zhejiang. Patentee after: Zhejiang Huandong Robot Joint Technology Co.,Ltd. Address before: 317600 Yucheng street, Yuhuan City, Taizhou, Zhejiang. Patentee before: Zhejiang environmental Robot Joint Technology Co.,Ltd. |