CN211121961U - Loading test device of drum-shaped filter screen speed reduction driving device - Google Patents
Loading test device of drum-shaped filter screen speed reduction driving device Download PDFInfo
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- CN211121961U CN211121961U CN201920130254.3U CN201920130254U CN211121961U CN 211121961 U CN211121961 U CN 211121961U CN 201920130254 U CN201920130254 U CN 201920130254U CN 211121961 U CN211121961 U CN 211121961U
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Abstract
A loading test device of a drum-shaped filter screen speed reduction driving device relates to the technical field of driving devices and comprises a test device, a test bed input section, a test bed output section, an accompanying test device and a test bed loading section; a tested drum net speed reduction driving device is arranged between the test device and the test bed input section and the test bed output section; and a test accompanying drum net speed reduction driving device is arranged between the test bed output section and the test accompanying device and between the test bed output section and the test bed loading section. The loading test device of the drum-type filter screen speed reduction driving device is specially used for testing the drum-type filter screen speed reduction driving device according to the vertical arrangement form, the bearing characteristics and the running mode of the drum-type filter screen speed reduction driving device. The loading test device can carry out running-in test on the drum-shaped filter screen speed reduction driving device or test a new drum-shaped filter screen speed reduction driving device developed in the future.
Description
The technical field is as follows:
the invention relates to the technical field of driving devices, in particular to a loading test device of a drum-shaped filter screen deceleration driving device.
Background art:
the drum type filter screen is a core device in a seawater filtering system of a power plant. The drum-shaped filter screen driving device drives a pinion on the transmission shaft, and the pinion is in meshing transmission with a gear ring on the drum-shaped filter screen so as to drive the drum-shaped filter screen to rotate. The drum type filter screen driving device needs to be subjected to a running-in test before leaving a factory, and when the product structure, the material and the process are greatly improved and the product performance is possibly influenced, a performance test and a fatigue performance test are also needed.
At present, drum-shaped filter screen speed reduction driving devices used in nuclear power plants in China are all imported products, and users do not need to test and can directly install the drum-shaped filter screen speed reduction driving devices on a unit for use. The loading test device of the drum-shaped filter screen speed reduction driving device is especially developed aiming at the vertical arrangement form of the filter screen and the driving device of the seawater filtering system of the nuclear power station in China for testing the performance of the drum-shaped filter screen speed reduction driving device developed in the future and carrying out factory running-in tests on speed reduction driving device products developed in the future.
The invention content is as follows:
the invention aims to overcome the defects in the prior art, and provides a loading test device of a drum-type filter screen deceleration driving device, which is specially used for testing the drum-type filter screen deceleration driving device according to the vertical arrangement form, the bearing characteristics and the running mode of the drum-type filter screen deceleration driving device.
The technical scheme adopted by the invention is as follows: a loading test device of a drum-type filter screen speed reduction driving device comprises a test device and test bed input section, a test bed output section, a test accompanying device and test bed loading section, wherein the test device and test bed input section comprises a low-speed motor, the low-speed motor is connected with a torque and speed sensor A, the torque and speed sensor A is connected with a low-speed worm A, the low-speed worm A is respectively connected with a standby motor and a first-level worm wheel A, the first-level worm wheel A is connected with a second-level worm A, the second-level worm A is respectively connected with the second-level worm wheel A and a first-level worm wheel B, the first-level worm wheel B is connected with a high-speed worm A, the high-speed worm A is respectively connected with a speed measuring box and the torque and speed sensor B, and the torque and; the test bed output section comprises a transmission shaft A, one end of the transmission shaft A is connected with the secondary worm gear A, the other end of the transmission shaft A is connected with a torque and rotation speed sensor C, and the torque and rotation speed sensor C is connected with a transmission shaft B; the accompanying and testing device and the test bed loading section comprise a secondary worm wheel B, the secondary worm wheel B is connected with a transmission shaft B, the secondary worm wheel B is connected with a secondary worm B, one end of the secondary worm B is connected with a primary worm wheel C, the primary worm wheel C is connected with a high-speed worm B, the other end of the secondary worm B is connected with a primary worm wheel D, the primary worm wheel D is connected with a low-speed worm B, the low-speed worm B is connected with a torque and rotation speed sensor D, and the torque and rotation speed sensor D is connected with an eddy current brake; a tested drum net speed reduction driving device is arranged between the test device and the test bed input section and the test bed output section; and a test accompanying drum net speed reduction driving device is arranged between the test bed output section and the test accompanying device and between the test bed output section and the test bed loading section.
The test device and the test bed input section, the test bed output section, the test accompanying device and the test bed loading section are independent from each other, and the test device and the test bed input section, the test bed output section, the test accompanying device and the test bed loading section are arranged according to the structural form of the drum network speed reduction driving device or the position of a test site
Type or
And (4) molding.
The test device and the test bed input section comprise a motor support, a middle-high speed motor, a torque and rotation speed sensor B, a high-speed transmission shaft and a high-speed input shaft, the motor support is a two-layer welding structure support, the middle-high speed motor, the torque and rotation speed sensor B, the high-speed transmission shaft and the high-speed input shaft are sequentially connected, the shaft center is on a straight line, and a corresponding motor end part supporting seat, a torque measuring instrument base A and a corresponding transmission shaft base A are fixed on a base bottom plate and are arranged on one layer of the motor support; the low-speed motor, the torque and speed sensor A, the low-speed transmission shaft and the low-speed input shaft are sequentially connected, the axes are on a straight line, and the corresponding motor end supporting seat, the torque measuring instrument base B and the transmission shaft base B are fixed on the base bottom plate and are arranged on the second layer of the motor support.
Two transmission case base side surfaces respectively connected with two sides of the output section of the test bed are respectively provided with a stop supporting structure.
The locking support structure is connected with the swing rod through the rotating shaft, a pin penetrates through the swing rod, and the pin can penetrate into a secondary worm gear box A of the tested drum network speed reduction driving device and a locking arm of a secondary worm gear box B of the accompanying and testing drum network speed reduction driving device.
The invention has the beneficial effects that: this drum type filter screen speed reduction drive device's load test device possesses following advantage:
1) the test device can be started, stopped and operated stably, can finish the free switching of the operation conditions of the drum-shaped filter screen speed reduction driving device, and can achieve the torque born by the actual operation of the drum-shaped filter screen speed reduction driving device;
2) the running-in test, the performance test and the fatigue performance test of the drum-shaped filter screen deceleration driving device can be completed;
3) the running rotating speed, the torque and other indexes of the tested drum type filter screen speed reduction driving device can be monitored, and the efficiency of the device can be tested.
Description of the drawings:
FIG. 1 is a block diagram of the power flow of the test stand of the present invention;
FIG. 2 is a schematic diagram of the arrangement of the input section, the output section and the loading section of the loading test device of the drum-type filter screen deceleration driving device of the invention;
FIG. 3 is a schematic structural diagram of an input section of a loading test device of a drum-type filter screen deceleration driving device according to the present invention;
FIG. 4 is a schematic structural diagram of an output section of the loading test device of the drum-type filter screen deceleration driving device of the present invention;
FIG. 5 is a view of the stop support structure of the output section of the loading test device of the drum-type filter screen deceleration driving device of the present invention;
FIG. 6 is a schematic structural diagram of a loading section of the loading test device of the drum-type filter screen deceleration driving device of the present invention;
FIG. 7 is a schematic structural diagram of a loading test device of the drum-type filter screen deceleration driving device of the present invention;
FIG. 8 illustrates a method for adjusting the base of the output section of the loading test device of the drum-type filter screen deceleration driving device according to the present invention;
FIG. 9 is a method for adjusting and using the drum-type filter screen speed reduction driving device of the invention for devices with different center distances (d);
FIG. 10 is a view of the adjustment and use method of the drum type filter screen deceleration driving device of the invention for equipment with different center distances (d 1);
fig. 11 shows the adjustment and use method of the drum type filter screen speed reduction driving device of the invention for equipment with different center distances (d 2).
The specific implementation mode is as follows:
referring to the figures, the loading test device of the drum-type filter screen speed reduction driving device comprises a test device and test bed input section, a test bed output section, a test accompanying device and a test bed loading section, wherein the test device and test bed input section comprises a low-speed motor, the low-speed motor is connected with a torque and rotation speed sensor A, the torque and rotation speed sensor A is connected with a low-speed worm A, the low-speed worm A is respectively connected with a standby motor and a first-level worm wheel A, the first-level worm wheel A is connected with a second-level worm A, the second-level worm A is respectively connected with a second-level worm wheel A and a first-level worm wheel B, the first-level worm wheel B is connected with a high-speed worm A, the high-speed worm A is respectively connected with a speed measuring box and the torque and rotation speed sensor B; the test bed output section comprises a transmission shaft A, one end of the transmission shaft A is connected with the secondary worm gear A, the other end of the transmission shaft A is connected with a torque and rotation speed sensor C, and the torque and rotation speed sensor C is connected with a transmission shaft B; accompany examination device and test bench loading section and include second grade worm wheel B, and second grade worm wheel B is connected with transmission shaft B, and second grade worm wheel B is connected with second grade worm B, and second grade worm B one end links with one-level worm wheel CThe first-stage worm wheel C is connected with a high-speed-stage worm B, the other end of the second-stage worm B is connected with a first-stage worm wheel D, the first-stage worm wheel D is connected with a low-speed-stage worm B, the low-speed-stage worm B is connected with a torque and rotation speed sensor D, and the torque and rotation speed sensor D is connected with an eddy current brake; a tested drum net speed reduction driving device is arranged between the test device and the test bed input section and the test bed output section; and a test accompanying drum net speed reduction driving device is arranged between the test bed output section and the test accompanying device and between the test bed output section and the test bed loading section. The test device and the test bed input section, the test bed output section, the test accompanying device and the test bed loading section are independent respectively, and the test device and the test bed input section, the test bed output section, the test accompanying device and the test bed loading section are arranged according to the structural form of the drum network speed reduction driving device or the position of a test site
Type or
And (4) molding. The test device and the test bed input section comprise a motor support, a middle-high speed motor, a torque and rotation speed sensor B, a high-speed transmission shaft and a high-speed input shaft, the motor support is a two-layer welding structure support, the middle-high speed motor, the torque and rotation speed sensor B, the high-speed transmission shaft and the high-speed input shaft are sequentially connected, the shaft center is on a straight line, and a corresponding motor end part supporting seat, a torque measuring instrument base A and a corresponding transmission shaft base A are fixed on a base bottom plate and are arranged on one layer of the motor support; the low-speed motor, the torque and speed sensor A, the low-speed transmission shaft and the low-speed input shaft are sequentially connected, the axes are on a straight line, and the corresponding motor end supporting seat, the torque measuring instrument base B and the transmission shaft base B are fixed on the base bottom plate and are arranged on the second layer of the motor support. Two transmission case base side surfaces respectively connected with two sides of the output section of the test bed are respectively provided with a stop supporting structure. The locking support structure is connected with the swing rod through the rotating shaft, a pin penetrates through the swing rod, and the pin can penetrate into a secondary worm gear box A of the tested drum network speed reduction driving device and a locking arm of a secondary worm gear box B of the accompanying and testing drum network speed reduction driving device.
Referring to fig. 1, the test bench can be operated to test the tested equipment by starting the middle-high speed motor, the low speed motor and the standby motor. Taking starting the low-speed motor as an example, the arrow in the figure indicates the direction of the power flow of the test bed. The power of the low-speed motor is transmitted to a first-stage worm wheel A meshed with the low-speed worm A shaft of the test device through the low-speed worm A shaft and then to a second-stage worm A of the test device. The power is mainly transmitted to the test device and the test bench loading section through a second-level worm wheel A of the test device through a transmission shaft A, and a small part of power is transmitted to a high-speed worm A of the test device through a first-level worm wheel B meshed with the high-speed worm A, and the reverse worm, the middle-high speed motor and the like are idle. The special structure of the drum net speed reduction driving device enables the drum net speed reduction driving device to operate under any working condition, the condition that the worm wheel reversely drives the worm and the two motors are driven to run in an idle running mode exists, and therefore the efficiency of forward running and the efficiency of reverse running of the worm wheel and the worm are considered when the worm wheel and the worm are designed. Therefore, the test device adopts a test scheme that the tested drum net speed reduction driving device and the test accompanying drum net speed reduction driving device run back to back simultaneously for testing, and the test bench has the function of testing the forward running efficiency and the reverse running efficiency of the drum net speed reduction driving device simultaneously.
This loading device makes equipment under test and accompany the test equipment back-to-back test. The rotating speed and the torque of the input section, the output section and the loading section can be output in real time by a transmission shaft A of the input section of the test device and the test bed, a transmission shaft B of the output section of the test bed and a torque rotating speed sensor D beside the transmission shaft B of the test device and the test bed loading section. If the input section rotation speed is nInput deviceTorque of MInput deviceThe rotational speed of the output section is nOutput ofTorque of MOutput ofThe forward running efficiency η of the tested drum net speed reduction driving device can be calculated according to the following formulaTest ofThe efficiency considers the efficiency of the two-stage worm gear pair, the bearing efficiency of the transmission shaft of the input section and the output section, and the like, and does not include the motor efficiency.
Can calculate and accompany examination drum net speed reduction drive reverse running efficiency ηAccompanying trialHerein, thisThe efficiency considers the efficiency of the two-stage worm-gear pair, the efficiency of the bearing of the transmission shaft at the loading section and the output section, and the like.
After the drum net speed reduction driving device operates, the double-shaft type eddy current brake is used for loading the testing device, and the current of the magnet exciting coil in the eddy current brake can be adjusted through the loading instrument, so that the braking torque is adjusted. The braking torque is continuously variable with the change of the current of the exciting coil.
The bearings of the input, output and loading sections of the loading device all use rolling bearings. All bearings of the input section, the output section and the loading section of the loading device are lubricated by grease, and the drum net speed reduction driving device is lubricated by oil bath, so that the testing device, the tested device and the accompanying testing device do not need external oil supply, namely, an oil station is not needed outside the whole testing loading device. The rolling bearing is convenient to maintain, the oil station space of the test bed is saved, the occupied area is small, and the maintenance is convenient.
The loading device is convenient to use and simple and convenient to operate. The loader can be started by one key through the control cabinet beside the machine only by supplying water to the loader. The test bed can bear the soft start or the straight start of the motor under the high, medium and low rotating speeds, and can be independently operated.
Referring to fig. 2, the loading device mainly comprises a test device and test bed input section 100, a test bed output section 200 and a test accompanying device and test bed loading section 300 which are independent from each other, and the arrangement positions of the test device and test bed input section 100, the test bed output section 200 and the test accompanying device and test bed loading section 300 can be changed according to the structural type of the drum network speed reduction driving device, the requirements of a test site and the like. The three parts can be as follows
Shaped arrangements, or
And (4) arranging the components in a shape.
Referring to fig. 3, in the input stage of the test apparatus and the test stand, a medium-high speed motor 101 is connected to a torque/rotational speed sensor B102, a high-speed transmission shaft 103, and a high-speed input shaft 104 in this order, the four shaft centers are aligned, and a shaft end of the high-speed input shaft 104 is connected to a coupling or a clutch 151. The medium-high speed motor 101 is connected with a torque and rotation speed sensor B102, and the torque and rotation speed sensor 102 is connected with a high-speed transmission shaft 103 through flanges. The motor end supporting seat B111, the torque meter base B112 and the transmission shaft base B113 are fixed on an upper base bottom plate B114, and the upper base bottom plate B114 is connected on a motor bracket 141, positioned by bolts and fixed by pins. The structural style, arrangement position, connection mode and the like of each part connected at the low-speed motor 121 are the same as those of the medium-high speed motor 101, the axes of the low-speed motor 121, the torque rotating speed sensor A122, the low-speed transmission shaft 123 and the low-speed input shaft 124 are on a straight line, and the shaft end of the low-speed input shaft 124 is connected with the coupler or the clutch 151. A motor end supporting seat A131 for fixing a low-speed motor 121, a torque meter base A132 for supporting a torque and speed sensor A122 and a transmission shaft base 133 for placing a low-speed transmission shaft 123 supporting seat are fixed on a lower base plate A134, and the lower base plate A134 is connected to a motor support 141, positioned by bolts and fixed by pins. The motor mount 141 is a two-layer welded structure mount. The medium-high speed motor 101 and the connecting part thereof are arranged on the upper layer of the motor bracket 141; the low-speed motor 121 and its connection part are disposed at the lower layer of the motor bracket 141. The axes of the medium-high speed motor 101 and the low-speed motor 121 are parallel and in a vertical plane.
Referring to fig. 4, in the output section of the test bed, two ends of a torque and speed sensor C202 are respectively connected with a transmission shaft a and a transmission shaft B through flanges, and the shaft extension of the torque and speed sensor C202 is in a straight line with the shaft centers of the transmission shaft a201 and the transmission shaft B203. The torque and rotation speed sensor C202 is fixed to the torque meter base C222 by bolts. The transmission shaft A201 is supported by two ball bearings, the transmission shaft A201 and the two ball bearings are arranged in a transmission case A211, and the transmission case A211 is arranged on a transmission case base A221, is positioned by a pin and is fixed by a bolt; similarly, the drive shaft B203 and the two ball bearings supporting it are placed in the drive box B212, and the drive box B212 is placed on the drive box base B223, positioned by pins, and fixed by bolts. The torque meter base C222, the transmission case base A221 and the transmission case base B223 are arranged on the base 231, the torque meter base C222 is fixed by bolts, and the transmission case base A221 and the transmission case base B223 are positioned by pins and fixed by bolts. And a stop support structure is arranged on one side surface of each of the transmission box base A221 and the transmission box base B223, can be arranged on either left side or right side, and is arranged on the same side of the stop arm of the drum net speed reduction driving device.
Referring to fig. 5, an embodiment of the output section stop support of the device is shown. The stopping bracket 226 is used for fixing the angle of the drum net speed reduction driving device to enable the drum net speed reduction driving device to be in a vertical installation mode; firstly, provide the reaction torque for whole platform drum net speed reduction drive arrangement when motor start, rising speed or motor deceleration, braking, guarantee that it can not be around transmission shaft A201 reciprocal swing by a wide margin. The test loading device can bear the impact caused by direct starting of a high-speed motor (the rotating speed is about 2930 r/min). When the device is installed, the stop bracket 226 is connected with the swing rod 225 through a rotating shaft at the position C, the swing rod 225 is connected with a stop arm 431 of the secondary worm gear box through a pin at the position B, and the lower end of the stop bracket 226 is provided with an adjusting screw 227. This design can compensate for the machining error of the hole center C of the stopper bracket 226 and the hole center B of the stopper arm 431 when connecting. If the distance AB is a and the distance BC is b, the stop bracket 226 can be connected to the secondary worm gear box under the condition that the point C is located in a circular ring with the center a, the inner diameter a + b of the outer ring and the inner diameter a-b of the inner ring, and the range of the point C is far larger than the sum of the position tolerances of the holes in the stop arm 431, the swing rod 225 and the stop bracket 226. The design can solve the problem of inconvenient installation caused by hole machining errors, and is better than the mode that the stop bracket 226 and the stop arm 431 are directly connected. An adjusting screw 227 at the lower end of the left drawing structure is used for adjusting the level of the device to be measured, so that the worm shaft of the medium/high-speed worm gear box is coaxial with the high-speed input shaft of the input section of the test bed; the low-speed box worm shaft is coaxial with the low-speed input shaft of the test bed input section. The height position of the C point is adjusted through the adjusting screw 227, and the installation angle error of the device to be measured caused by the position error of the two holes on the B and the swing rod 225 is compensated.
Referring to fig. 6, in the test-accompanying apparatus and test bench loading section, loading was achieved using an eddy current brake 301. The eddy current brake 301 is connected with a torque and rotation speed sensor D302, a transmission shaft C303 and a flange shaft 304 in sequence, and the four shaft centers are on a straight line. The eddy current brake 301 is connected with a torque and rotation speed sensor D302, and the torque and rotation speed sensor D302 is connected with a transmission shaft C303 through flanges. The load base 311, the torque meter base C312, and the drive shaft base C313 are disposed on the dynamometer base plate 314, and are positioned by keys and fixed by bolts. The dynamometer base plate 314 is placed on the dynamometer base 321, and is positioned by pins and fixed by bolts.
Referring to fig. 7, a worm wheel of a secondary worm gear box a401 of the tested drum network speed reduction driving device is installed at the shaft extension position of a transmission shaft a201 in a transmission shaft box a211, and is axially positioned by means of a shaft shoulder of the transmission shaft a201, and the shaft extension of the transmission shaft a201 is a cylindrical surface with accurate size; the worm wheel of the secondary worm gear box B411 of the accompanying test drum net speed reduction driving device is arranged at the shaft extension position of the transmission shaft B203 in the other transmission shaft box B212, axial positioning is carried out by depending on the shaft shoulder of the transmission shaft B203, and the shaft extension of the transmission shaft B203 is a cylindrical surface with accurate size. The stop arm of the secondary worm gear case A401 of the tested drum net speed reduction driving device is connected with the swing rod through a pin, and the swing rod is connected with the stop bracket 226 of the output section through a rotating shaft, so that the vertical installation form of the drum net speed reduction driving device is ensured. The worm shaft of the middle and high speed box 402 is connected with the input section high speed input shaft 103 through a quincunx elastic coupling or clutch 151, and the worm shaft of the low speed box 403 is connected with the input section low speed input shaft 123 through a quincunx elastic coupling or clutch 151. The installation mode of the speed reduction driving device of the accompanying test drum net is the same as that of the tested device. The worm shaft of the low speed box 413 is connected with the loading section flange shaft 304 through a plum blossom elastic coupling or clutch 151.
Referring to fig. 8, the arrangement of the test loading apparatus output section base on the T-slot platform is shown. The bolt hole on the output section base is a kidney-shaped hole, and the direction of the bolt hole is orthogonal to the direction of the T-shaped groove on the platform. The design has the function of enabling the loading device to be adaptive to the platform, realizing the adjustability of the base along any direction and having a larger adjusting area range. If the base is transversely adjusted along the direction of the T-shaped groove, the T-shaped groove is transversely moved to a proper position along the T-shaped groove by a bolt along with the base; if the base is adjusted longitudinally, the base is moved longitudinally to a proper position, and the T-shaped groove is fixed by the bolt. The position of the bolt in the waist-shaped hole of the base is changed relatively, and the base can still be fixed. The longer the waist-shaped hole of the base is, the larger the range of the adjusting area is. The input section and the loading section are also designed in the same way, so that when different drum net speed reduction driving devices are tested, the position of the base is changed, and the base can still be conveniently fixed.
The tested and accompanying test drum net speed reduction driving devices can be completely the same, and can also be different in center distance, secondary worm wheel hub aperture, worm axial modulus, worm head number, worm gear tooth number, worm wheel displacement coefficient, worm normal tooth profile angle and the like. If different tested and accompanying devices are adopted in the test, the tested devices have larger reduction ratio, and the accompanying devices are ensured not to be overheated during operation. Therefore, the accompanying device should be a speed reducer with a small speed reduction ratio under possible conditions.
Two sets of bases of test device and test bench input section are replaceable, when the drum net speed reduction drive unit centre-to-centre spacing that is surveyed changes, can use the horizontal height matching to survey the torque instrument base, the transmission shaft base is replaced in order to satisfy the experiment.
The transmission shaft of the output section of the test bed is replaceable, the transmission box and the transmission box base are also replaceable, when the aperture of the secondary worm wheel hub of the tested drum network speed reduction driving device changes, the transmission shaft matched with the shaft neck in size can be used, the size of the shaft neck meets the requirement of the transmission box of the transmission shaft, and the transmission box base matched with the horizontal height is replaced to meet the test.
With reference to fig. 9, 10 and 11, an embodiment of experimental adjustment of the drum web deceleration driving devices of different center distances using the experimental loading device is described. The test is performed for a large drum deceleration drive. If the larger test device makes a1 < a, c1 > c, the diameter of the worm wheel hub hole of the secondary worm gear box d1 > d, but d1 is smaller than the basic size of the shaft neck at the shaft seal of the original transmission shaft A201. Need replace two sets of bases of output section transmission shaft A201 and input section during the experiment, promptly: motor end bearing seat B111, torque meter base B112, transmission shaft base B113, motor end bearing seat A131, torque meter base A132, and transmission shaft base A133.
The transmission shaft is replaced in order to install a tested drum net speed reduction driving device with the diameter of D1 of the hub of the second-level worm wheel, so that the diameter of the shaft end of the replaced transmission shaft D204, which is matched with the original transmission shaft A201, is different from that of the shaft end of the original transmission shaft A201, and the rest parts of the replaced transmission shaft D204 and the original transmission shaft A201 are completely consistent. The shaft extension of the replaced transmission shaft D204 is a cylindrical surface with accurate size, and can be matched with a secondary worm wheel hub hole of a larger tested drum net speed reduction driving device, and the matching is not too tight in consideration of convenient disassembly. If the basic size d2 of the aperture of the secondary worm wheel hub is larger than the basic size of the shaft neck at the shaft seal of the original transmission shaft A201, the new transmission shaft E205 and the new transmission shaft box C213 and the new transmission box base C224 need to be replaced. The journal diameter E1 & gt E of the bearing matching surface of the new transmission shaft E205, and the height f1 & lt f of the new transmission case base C224.
The two groups of bases of the input section are replaced, the new motor end part supporting seat C115, the new torque meter base C116 and the new transmission shaft base C117 are replaced, so that the middle-high speed motor 101, the torque and rotation speed sensor B102 and the high-speed transmission shaft 103 which are connected with the middle-high speed worm gear case 405 of the device to be tested are equal in height, and the low-speed motor A121, the torque and rotation speed sensor A122 and the low-speed transmission shaft 123 which are connected with the low-speed worm gear case 406 of the device to be tested are equal in height by replacing the new motor end part supporting seat C135, the new torque meter base C116 and the new transmission shaft base C117. The upper base plate B114, the lower base plate A134 and the motor bracket 141 do not need to be replaced.
Similarly, for different test devices such as the axial modulus of a worm, the number of heads of the worm, the number of teeth of a worm wheel, the displacement coefficient of the worm wheel, the normal tooth profile angle of the worm and the like, a transmission shaft with a proper shaft neck is selected and matched according to the hole diameter of a secondary worm wheel hub, and a base with a proper height is selected and matched according to the horizontal heights of a worm shaft of the high-speed worm gear case 405 and a worm shaft of the low-speed worm gear case 406, so that the corresponding test can be completed.
The loading test device is specially used for the drum-type filter screen speed reduction driving device, and is characterized in that the device is provided with a stop bracket, can adapt to and match with a special structure and a cantilever installation mode of the drum-type filter screen speed reduction driving device, is convenient to mount and dismount before and after a test, does not need an external oil station for oil supply, has small occupied space of a test bed, is convenient to maintain and use, is simple and convenient to operate, and can adapt to the test use of driving devices with different rotation directions and different models.
The testing device is used for performing running-in test, performance test and fatigue performance test on the drum net speed reduction driving device, is divided into an input section, an output section and a loading section, and is of a three-section structure. The testing device adopts a back-to-back structure, the tested drum net speed reduction driving device is positioned between the input section and the output section of the testing device, the test accompanying drum net speed reduction driving device is positioned between the output section and the loading section of the testing device, and the tested device and the test accompanying device are generally identical. The input section of the loading test device mainly comprises a motor bracket, a medium-high speed motor, a low-speed motor, a torque and rotation speed sensor, a high-speed transmission shaft, a high-speed input shaft, a low-speed transmission shaft, a low-speed input shaft, a coupler or a clutch and the like, and the low-speed standby motor and the medium-high speed motor can be connected with the input shaft ends of different first-stage worm gear boxes of the tested drum network speed reduction driving device through the transmission shaft, the coupler or the clutch. The input section is used for driving a tested device and monitoring the input rotating speed and the input torque of the drum net speed reduction driving device. The output section mainly comprises a bracket, two transmission boxes, two transmission shafts, a torque and rotating speed sensor and the like. The output section is used for transmitting motion and force and monitoring the output rotating speed and the output torque of the tested device. The loading section mainly comprises a dynamometer base, an eddy current brake, a torque and rotating speed sensor, a transmission shaft, a flange shaft, a coupler or a clutch and the like. The loading section is used for loading the tested device and monitoring the output rotating speed and the output torque of the accompanying device.
During the test, the low-speed standby motor and the medium-speed and high-speed motors are controlled to alternately run, and each motor can be started and stopped independently. The low-speed motor operation, the medium-speed operation and the high-speed operation of the medium-high speed motor can be dynamically switched according to the field operation mode.
In conclusion, the loading test device of the drum-type filter screen deceleration driving device is specially used for testing the drum-type filter screen deceleration driving device according to the vertical arrangement form, the bearing characteristics and the running mode of the drum-type filter screen deceleration driving device. The loading test device can carry out running-in test on the drum-shaped filter screen speed reduction driving device or test a new drum-shaped filter screen speed reduction driving device developed in the future.
Claims (5)
1. The utility model provides a drum type filter screen speed reduction drive arrangement's load test device which characterized in that: the test device and test bed input section comprises a low-speed motor, the low-speed motor is connected with a torque and rotation speed sensor A, the torque and rotation speed sensor A is connected with a low-speed worm A, the low-speed worm A is respectively connected with a standby motor and a first-level worm wheel A, the first-level worm wheel A is connected with a second-level worm A, the second-level worm A is respectively connected with the second-level worm wheel A and a first-level worm wheel B, the first-level worm wheel B is connected with a high-speed worm A, the high-speed worm A is respectively connected with a speed measuring box and a torque and rotation speed sensor B, and the torque and rotation speed sensor B is connected with a medium-high speed motor; the test bed output section comprises a transmission shaft A, one end of the transmission shaft A is connected with the secondary worm gear A, the other end of the transmission shaft A is connected with a torque and rotation speed sensor C, and the torque and rotation speed sensor C is connected with a transmission shaft B; the accompanying and testing device and the test bed loading section comprise a secondary worm wheel B, the secondary worm wheel B is connected with a transmission shaft B, the secondary worm wheel B is connected with a secondary worm B, one end of the secondary worm B is connected with a primary worm wheel C, the primary worm wheel C is connected with a high-speed worm B, the other end of the secondary worm B is connected with a primary worm wheel D, the primary worm wheel D is connected with a low-speed worm B, the low-speed worm B is connected with a torque and rotation speed sensor D, and the torque and rotation speed sensor D is connected with an eddy current brake; a tested drum net speed reduction driving device is arranged between the test device and the test bed input section and the test bed output section; and a test accompanying drum net speed reduction driving device is arranged between the test bed output section and the test accompanying device and between the test bed output section and the test bed loading section.
2. The loading test device of the drum type filter screen deceleration driving device according to claim 1, characterized in that: the test device and the test bed input section, the test bed output section, the test accompanying device and the test bed loading section are independent respectively.
3. The loading test device of the drum type filter screen deceleration driving device according to claim 1, characterized in that: the test device and the test bed input section comprise a motor support, a middle-high speed motor, a torque and rotation speed sensor B, a high-speed transmission shaft and a high-speed input shaft, the motor support is a two-layer welding structure support, the middle-high speed motor, the torque and rotation speed sensor B, the high-speed transmission shaft and the high-speed input shaft are sequentially connected, the shaft center is on a straight line, and a corresponding motor end part supporting seat, a torque measuring instrument base A and a corresponding transmission shaft base A are fixed on a base bottom plate and are arranged on one layer of the motor support; the low-speed motor, the torque and speed sensor A, the low-speed transmission shaft and the low-speed input shaft are sequentially connected, the axes are on a straight line, and the corresponding motor end supporting seat, the torque measuring instrument base B and the transmission shaft base B are fixed on the base bottom plate and are arranged on the second layer of the motor support.
4. The loading test device of the drum type filter screen deceleration driving device according to claim 1, characterized in that: two transmission case base side surfaces respectively connected with two sides of the output section of the test bed are respectively provided with a stop supporting structure.
5. The loading test device of the drum type filter screen deceleration driving device according to claim 4, characterized in that: the locking support structure is connected with the swing rod through the rotating shaft, a pin penetrates through the swing rod, and the pin can penetrate into a secondary worm gear box A of the tested drum network speed reduction driving device and a locking arm of a secondary worm gear box B of the accompanying and testing drum network speed reduction driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130254.3U CN211121961U (en) | 2019-01-25 | 2019-01-25 | Loading test device of drum-shaped filter screen speed reduction driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130254.3U CN211121961U (en) | 2019-01-25 | 2019-01-25 | Loading test device of drum-shaped filter screen speed reduction driving device |
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| Publication Number | Publication Date |
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| CN211121961U true CN211121961U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920130254.3U Withdrawn - After Issue CN211121961U (en) | 2019-01-25 | 2019-01-25 | Loading test device of drum-shaped filter screen speed reduction driving device |
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| CN (1) | CN211121961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708876A (en) * | 2019-01-25 | 2019-05-03 | 中国船舶重工集团公司第七0三研究所 | A kind of load testing machine of drum type strainer speed reducing driving device |
-
2019
- 2019-01-25 CN CN201920130254.3U patent/CN211121961U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708876A (en) * | 2019-01-25 | 2019-05-03 | 中国船舶重工集团公司第七0三研究所 | A kind of load testing machine of drum type strainer speed reducing driving device |
| CN109708876B (en) * | 2019-01-25 | 2023-12-05 | 中国船舶重工集团公司第七0三研究所 | Loading test device of drum type filter screen speed reduction driving device |
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