CN112197961B - Testing device for testing anti-torque performance of elevator main shaft through inertial impact - Google Patents
Testing device for testing anti-torque performance of elevator main shaft through inertial impact Download PDFInfo
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- CN112197961B CN112197961B CN202011003937.6A CN202011003937A CN112197961B CN 112197961 B CN112197961 B CN 112197961B CN 202011003937 A CN202011003937 A CN 202011003937A CN 112197961 B CN112197961 B CN 112197961B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
Abstract
The invention relates to the field of shaft part testing equipment, in particular to a testing device for testing the anti-torque performance of an elevator main shaft through inertial impact, which comprises a bracket; a first spindle base; the damping adjusting mechanism is used for adjusting the resistance of relative rotation between the first spindle seat and the support; a first torque output mechanism for outputting a constant torque to the first spindle base; the second torque output mechanism is used for outputting instantaneous torque to a spindle arranged on the first spindle seat, and the output power of the second torque output mechanism is greater than the maximum output power of the first torque output mechanism; and the transposition mechanism is used for moving the support, so that the first spindle seat is in transmission connection with the output end of the first torque output mechanism, or a spindle arranged on the first spindle seat is in transmission connection with the output end of the second torque output mechanism. The device realizes the function of applying instant torque impact on the main shaft, and can adjust the maximum bearing torque of the main shaft.
Description
Technical Field
The invention relates to the field of shaft part testing equipment, in particular to a testing device for testing the anti-torque performance of an elevator main shaft through inertial impact.
Background
The escalator is widely applied to public places such as markets due to the large bearing capacity. Because the occasions related to the escalator have larger people flow, the safety performance requirement of the escalator is extremely high. At present, a large number of safety monitoring devices are installed on the used escalators, and the escalators are stopped in time once the escalators break down, so that the life safety of passengers is protected. However, the safety monitoring devices are installed more than once, only play a role in killing sheep and mending sheep, and all the safety monitoring devices play a role after the escalator breaks down.
The main shaft of the escalator is one of the most important parts of the escalator, and is used for connecting a drive of the escalator and a step of the escalator, and the strength of the main shaft plays a very important role in the safety of the escalator. Conventional main shaft in the existing market is made by cast iron, because there is a large amount of detections in the casting process, consequently do not always pass through the detection before installing to the escalator, but the main shaft installs accessories such as a large amount of gears additional after the casting is accomplished and possibly produces the injury to the main shaft, causes main shaft intensity to descend or produces the potential safety hazard.
Chinese patent CN201410402904.7 discloses an elevator spindle testing device, which comprises a fixedly arranged working platform, wherein a bearing frame is arranged on the working platform, and a lifting device is arranged on one side of the bearing frame; the bearing frame comprises two shaft brackets which are parallel to each other, two coaxial arc-shaped bearing surfaces are arranged at the top ends of the shaft brackets, and a fixing frame for assisting the shaft brackets is arranged on the outer sides of the shaft brackets; the lifting device comprises a lifting hydraulic cylinder fixedly arranged on the working platform and a lifting force arm hinged on a piston of the lifting hydraulic cylinder, and the lifting hydraulic cylinder is connected with a liquid supply device which drives the lifting hydraulic cylinder to operate and is provided with a hydraulic indicating device.
When the device tests the main shaft, the main shaft is difficult to disassemble and assemble, the instantaneous torque cannot be applied to the main shaft, the test condition deviates from the actual working state of the elevator main shaft, and a correct conclusion cannot be drawn.
Disclosure of Invention
In order to solve the technical problem, the device for testing the anti-torque performance of the elevator main shaft through inertia impact is provided, the device has the advantages that the function of applying instant torque impact on the main shaft is realized, and meanwhile, the maximum bearing torque of the main shaft can be adjusted.
In order to achieve the purpose, the invention adopts the technical scheme that:
a testing device for testing the torque resistance of an elevator main shaft through inertial impact comprises a machine frame and is installed on the machine frame:
a support;
the first spindle seat is rotatably arranged on the support, the spindle and the first spindle seat are coaxially arranged, and the spindle is detachably connected with the first spindle seat;
the damping adjusting mechanism is fixedly arranged on the support and is used for adjusting the resistance of relative rotation between the first spindle seat and the support;
the first torque output mechanism is fixedly arranged on the rack and used for outputting constant torque to the first spindle seat;
the second torque output mechanism is fixedly arranged on the rack and used for outputting instantaneous torque to a spindle arranged on the first spindle seat, and the output power of the second torque output mechanism is greater than the maximum output power of the first torque output mechanism;
and the transposition mechanism is fixedly arranged on the rack and used for moving the bracket, so that the first spindle seat is in transmission connection with the output end of the first torque output mechanism, or the spindle arranged on the first spindle seat is in transmission connection with the output end of the second torque output mechanism.
Preferably, the support is provided with a fixing plate, a bearing is embedded in the fixing plate, the first spindle seat is in a circular ring shape, the first spindle seat is coaxially installed on an inner ring of the bearing, the inner diameter of the first spindle seat is in clearance fit with the outer diameter of the spindle, and a key in transmission connection with the spindle is embedded in the inner circumferential surface of the first spindle seat.
Preferably, the damping adjustment mechanism includes:
the first friction disc is coaxially arranged on one side of the first spindle base, the diameter of the first friction disc is smaller than that of the first spindle base, and the first friction disc is fixedly connected with the support;
the second friction disc is coaxially arranged on the other side of the first spindle seat, and the shape and the size of the second friction disc are the same as those of the first friction disc;
first linear actuator, fixed mounting is on the support, first linear actuator's output and second friction disk fixed connection, and first linear actuator is used for driving the second friction disk and is close to first friction disk for first friction disk and second friction disk press from both sides first spindle drum and establish the centre.
Preferably, the damping adjustment mechanism further includes a first mounting bracket for fixedly connecting the first friction disk and the bracket, the first mounting bracket including:
the first friction disc is fixedly connected with the first movable plate, and the first movable plate is arranged on one side of the fixed plate in parallel;
the fixed plate and the first movable plate are fixedly connected through the bolt pair;
the sleeve is sleeved on each bolt pair, the sleeve is arranged between the fixed plate and the first movable plate, and the axial length of the sleeve is smaller than the minimum distance between the first movable plate and the fixed plate.
Preferably, the damping adjustment mechanism further includes a second mounting bracket for fixedly connecting the second friction disc and the output end of the first linear actuator, the second mounting bracket including:
the second friction disc is fixedly connected with the second movable plate, and the second movable plate is arranged on the other side of the fixed plate in parallel;
the movable shaft is coaxial and fixedly connected with the second movable plate, the movable shaft is arranged on one side, away from the fixed plate, of the second movable plate, and the movable shaft is fixedly connected with the output end of the first linear driver;
and the linear bearing is fixedly arranged on the bracket, and the movable shaft is in sliding connection with the linear bearing.
Preferably, the first torque output mechanism includes:
a housing;
a rotary driver disposed inside the housing;
the output shaft is rotatably arranged on the shell, one end of the output shaft is positioned in the shell, and the other end of the output shaft is positioned outside the shell and can be in transmission connection with the first spindle seat;
and the torque sensor is arranged inside the shell, and the output end of the rotary driver is in transmission connection with the output shaft through the torque sensor.
Preferably, the second torque output mechanism includes:
the second spindle seat is rotatably arranged on the frame, and the spindle is detachably connected with the second spindle seat;
the inertia wheel is rotatably arranged on the second spindle seat and is coaxial with the second spindle seat;
the clutch is arranged on the inertia wheel, and the inertia wheel is in transmission connection with the second spindle seat through the clutch;
and the first rotary driving mechanism is arranged on the rack and is used for driving the inertia wheel to rotate.
Preferably, the first rotary drive mechanism includes:
the transmission shaft is rotatably arranged on the rack;
the gear is coaxial and fixedly arranged at one end of the transmission shaft, and a gear ring meshed with the gear is arranged on the outer side of the inertia wheel;
the flywheel is coaxially and fixedly arranged at the other end of the transmission shaft;
and the rotary driver is arranged on the rack and is used for driving the flywheel to rotate.
Preferably, the first rotary drive mechanism further comprises:
the flywheel is rotatably arranged on the transmission shaft through the one-way bearing, and when the rotating speed of the flywheel is higher than that of the transmission shaft, the flywheel is in transmission connection with the transmission shaft through the one-way bearing.
Preferably, the index mechanism comprises:
the linear driver is horizontally arranged, and the bracket is fixedly arranged at the driving end of the linear driver;
the second rotary driving mechanism is arranged on the rack, an output shaft of the second rotary driving mechanism is vertically arranged, and the non-working part of the linear driver is fixedly arranged at the driving end of the second rotary driving mechanism.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention realizes the function of adjusting the maximum bearing torque of the main shaft through the bracket, the first main shaft seat, the damping adjusting mechanism and the first torque output mechanism, and compared with the prior art, the invention has wider test range and the specific method comprises the following steps: the transposition mechanism drives the support to move, so that the first spindle seat is in transmission connection with the output shaft, and the first torque output mechanism outputs constant torque through a built-in servo motor and a speed reducer of the first torque output mechanism so as to drive the first spindle seat to rotate; the damping adjusting mechanism gradually increases the resistance of relative rotation between the support and the first spindle seat, and the first torque output mechanism detects the torque between the output shaft and the first spindle seat through a built-in torque sensor of the first torque output mechanism until the torque between the output shaft and the first spindle seat reaches a preset value; the damping adjusting mechanism stops adjusting the resistance of relative rotation between the support and the first spindle base, the first torque output mechanism stops working, and the transposition mechanism drives the support to move, so that the first spindle base and the output shaft are disconnected in transmission.
2. The invention realizes the function of applying instant torque impact to the main shaft through the bracket, the first main shaft seat, the damping adjusting mechanism and the second torque output mechanism, and compared with the prior art, the invention is closer to the working state of the main shaft when the elevator breaks down suddenly, and the specific method comprises the following steps: the transposition mechanism drives the support to move, so that the other end of the spindle mounted on the first spindle seat is inserted into the second spindle seat, and the spindle is in transmission connection with the second spindle seat; the first rotation driving mechanism drives the inertia wheel to rotate in an accelerated mode gradually until the rotation speed of the inertia wheel reaches a preset numerical value; the clutch is connected with the second spindle seat and the inertia wheel, the spindle is impacted by instantaneous torque, and the spindle drives the first spindle seat to rotate by overcoming the resistance of the damping adjusting mechanism under the driving of the second torque output mechanism.
Drawings
Fig. 1 is a perspective view of an elevator main shaft;
FIG. 2 is a top view of the present invention;
FIG. 3 is a perspective view of the present invention with a first torque output mechanism applying a constant torque to a first spindle base;
FIG. 4 is a perspective view of the instant torque applied to the spindle by the second torque output mechanism of the present invention;
figure 5 is a top view of the bracket, first spindle base, damping adjustment mechanism and index mechanism of the present invention;
FIG. 6 isbase:Sub>A cross-sectional view taken at A-A of FIG. 5;
FIG. 7 is a partial enlarged view of FIG. 6 at B;
figure 8 is an exploded perspective view of the bracket, first spindle housing and damping adjustment mechanism of the present invention;
FIG. 9 is an exploded perspective view of the damping adjustment mechanism of the present invention;
FIG. 10 is a perspective view of a first torque output mechanism of the present invention;
FIGS. 11 and 12 are perspective views from two different perspectives of a second torque output mechanism of the present invention;
the reference numbers in the figures are:
1-a scaffold; 1 a-a fixation plate; 1 b-a bearing;
2-a first spindle base; a 2 a-bond;
3-a damping adjustment mechanism; 3 a-a first friction disc; 3 b-a second friction disc; 3 c-a first linear driver; 3 d-a first flap; 3 e-bolt pair; 3 f-a sleeve; 3 g-a second flap; 3 h-a movable shaft; 3 i-linear bearings;
4-a first torque output mechanism; 4 a-a housing; 4 b-an output shaft;
5-a second torque output mechanism; 5 a-a second spindle base; 5 b-a flywheel; 5 c-a clutch; 5 d-a first rotary drive mechanism; 5d 1-drive shaft; 5d 2-gear; 5d 3-flywheel; 5d 4-rotary drive; 5d 5-one-way bearing;
6-a transposition mechanism; 6 a-linear drive; 6 b-a second rotary drive mechanism; 6b 1-a stationary table; 6b 2-rotating table; 6b 3-slewing bearing; 6b 4-dividing disk.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art.
Example 1:
as shown in fig. 1, in this embodiment, two key slots are preset at two ends of the elevator main shaft, and when the elevator main shaft is inserted into and matched with the first spindle base and the second spindle base, the elevator main shaft transmits torque through keys installed in the key slots.
As shown in fig. 2, 3 and 4, the testing device for testing the torque resistance of the elevator main shaft through inertial impact comprises a machine frame, and is mounted on the machine frame:
a support 1;
the first spindle seat 2 is rotatably arranged on the support 1, a spindle is coaxially arranged with the first spindle seat 2, and the spindle is detachably connected with the first spindle seat 2;
the damping adjusting mechanism 3 is fixedly arranged on the support 1, and the damping adjusting mechanism 3 is used for adjusting the resistance of relative rotation between the first spindle seat 2 and the support 1;
the first torque output mechanism 4 is fixedly arranged on the frame, and the first torque output mechanism 4 is used for outputting constant torque to the first spindle seat 2;
the second torque output mechanism 5 is fixedly arranged on the rack, the second torque output mechanism 5 is used for outputting instantaneous torque to a spindle arranged on the first spindle seat 2, and the output power of the second torque output mechanism 5 is greater than the maximum output power of the first torque output mechanism 4;
and the transposition mechanism 6 is fixedly arranged on the frame, and the transposition mechanism 6 is used for moving the support 1, so that the first spindle seat 2 is in transmission connection with the output end of the first torque output mechanism 4, or a spindle arranged on the first spindle seat 2 is in transmission connection with the output end of the second torque output mechanism 5.
The working principle is as follows: firstly, the transposition mechanism 6 drives the support 1 to move, so that the first spindle seat 2 is in transmission connection with the output end of the first torque output mechanism 4, the first torque output mechanism 4 outputs constant torque to drive the first spindle seat 2 to rotate, the damping adjustment mechanism 3 gradually increases the resistance of the relative rotation between the support 1 and the first spindle seat 2, the first torque output mechanism 4 detects the relative torque between the output end of the first torque output mechanism and the first spindle seat 2 in real time, and the damping adjustment mechanism 3 and the first torque output mechanism 4 stop working immediately until the relative torque reaches a preset value; then, the transposition mechanism 6 drives the support 1 to move, so that the transmission connection between the first spindle seat 2 and the output end of the first torque output mechanism 4 is released, and a worker installs the spindle in the first spindle seat 2; then the transposition mechanism 6 drives the support 1 to move, so that a main shaft arranged on the first main shaft seat 2 is in transmission connection with an output end of the second torque output mechanism 5, the second torque output mechanism 5 outputs instantaneous torque which is larger than the output power of the first torque output mechanism 4 to the main shaft, the main shaft drives the first main shaft seat 2 to overcome the resistance of the damping adjusting mechanism 3 to rotate under the driving of the second torque output mechanism 5, and the instantaneous torque borne by the main shaft is equal to the output torque of the first torque output mechanism 4; and finally, the bracket 1 is driven by the transposition mechanism 6 to move, so that the transmission connection between the main shaft and the output end of the second torque output mechanism 5 is released, a worker detaches the main shaft from the first main shaft seat 2, and the deformation and damage conditions of the main shaft are detected by using an instrument to judge the torque resistance of the main shaft.
As shown in fig. 6 and 7, a fixing plate 1a is disposed on the bracket 1, a bearing 1b is installed in the fixing plate 1a in an embedded manner, the first spindle base 2 is in a circular ring shape, the first spindle base 2 is coaxially installed at an inner ring of the bearing 1b, an inner diameter of the first spindle base 2 is in clearance fit with an outer diameter of the spindle, and a key 2a in transmission connection with the spindle is installed at an inner circumferential surface of the first spindle base 2 in an embedded manner.
The working principle of the bracket 1 and the first spindle seat 2 is as follows: the first spindle base 2 is rotatably mounted on the fixed plate 1a through a bearing 1b, a key groove for mounting the key 2a is formed in the spindle in advance, and torque is transmitted between the spindle and the first spindle base 2 through the key 2a.
As shown in fig. 6 and 7, the damping adjustment mechanism 3 includes:
the first friction disc 3a is coaxially arranged on one side of the first spindle base 2, the diameter of the first friction disc 3a is smaller than that of the first spindle base 2, and the first friction disc 3a is fixedly connected with the support 1;
a second friction disk 3b coaxially disposed on the other side of the first spindle stock 2, the second friction disk 3b being the same in shape and size as the first friction disk 3 a;
the first linear driver 3c is fixedly installed on the support 1, an output end of the first linear driver 3c is fixedly connected with the second friction disc 3b, and the first linear driver 3c is used for driving the second friction disc 3b to be close to the first friction disc 3a, so that the first spindle seat 2 is clamped between the first friction disc 3a and the second friction disc 3 b.
The working principle of the damping adjusting mechanism 3 is as follows: the first linear actuator 3c is a hydraulic cylinder, the first spindle base 2 rotates on the bracket 1 through the bearing 1b, both end surfaces of the first spindle base 2 frictionally abut against the first friction disk 3a and the second friction disk 3b, and the first linear actuator 3c adjusts a driving force of the second friction disk 3b toward the first friction disk 3a, thereby adjusting a frictional force between the first spindle base 2 and the first and second friction disks 3a and 3b, that is, a resistance when the first spindle base 2 rotates.
As shown in fig. 7 and 8, the damping adjustment mechanism 3 further includes a first mounting bracket for fixedly connecting the first friction disk 3a and the bracket 1, the first mounting bracket including:
the first movable plate 3d is fixedly connected with the first friction disc 3a, and the first movable plate 3d is arranged on one side of the fixed plate 1a in parallel;
the plurality of bolt pairs 3e are provided, and the fixed plate 1a and the first movable plate 3d are fixedly connected through the bolt pairs 3 e;
the number of the sleeves 3f is the same as that of the bolt pairs 3e, the sleeves 3f correspond to the bolt pairs 3e one by one, the sleeves 3f are sleeved on each bolt pair 3e, the sleeves 3f are arranged between the fixed plate 1a and the first movable plate 3d, and the axial length of the sleeves 3f is smaller than the minimum distance between the first movable plate 3d and the fixed plate 1 a.
The working principle of the first mounting bracket is as follows:
the first friction disc 3a is provided with a plurality of countersunk holes, and the first friction disc 3a is fixedly connected with the first movable plate 3d by bolts installed inside the countersunk holes, so that the first friction disc 3a can be replaced.
First fly leaf 3d is through installing the vice 3e of bolt and fixed plate 1a fixed connection at its four corners, the axial length of sleeve 3f slightly is less than the minimum distance between first fly leaf 3d and fixed plate 1a, thereby when making the staff through screwing up vice 3e of bolt with fixed connection fixed plate 1a and first fly leaf 3d, certain guide effect can be played to sleeve 3f, under the prerequisite of guaranteeing that vice 3e of bolt can be screwed up, make the distance between the four corners of first fly leaf 3d and the four corners of fixed plate 1a substantially equal, thereby guarantee the depth of parallelism between first fly leaf 3d and fixed plate 1a, and then guarantee the laminating degree between the friction surface of first friction disc 3a and the first spindle seat 2 terminal surface.
As shown in fig. 10, the first torque output mechanism 4 includes:
a housing;
a rotary driver (not shown) disposed inside the housing;
the output shaft 4b is rotatably arranged on the shell, one end of the output shaft 4b is positioned in the shell, and the other end of the output shaft 4b is positioned outside the shell and can be in transmission connection with the first spindle seat 2;
and a torque sensor (not shown) arranged inside the shell, wherein the output end of the rotary driver is in transmission connection with the output shaft 4b through the torque sensor.
Operating principle of the first torque output 4: the rotary driver is a servo motor provided with a speed reducer, the speed reducer reduces the output rotating speed of the servo motor and simultaneously improves the output torque of the servo motor, and the torque sensor is a DYN-207 model of DAYSENSOR brand.
After the transposition mechanism 6 drives the support 1 to move, and the first spindle seat 2 is in transmission connection with the output shaft 4b, when the second torque output mechanism 5 can be adjusted by two methods to drive the spindle to drive the first spindle seat 2 to rotate, the damping adjusting mechanism 3 can adjust the torque applied to the spindle by the first spindle seat 2.
The first method comprises the following steps: the torque of the servo motor is adjusted through the controller, the servo motor drives the output shaft 4b to rotate through the speed reducer, the output shaft 4b drives the first spindle seat 2 to rotate, then the torque of the output shaft 4b after transmission through the speed reducer is calculated, then the rotation resistance of the first spindle seat 2 is gradually increased through the damping adjusting mechanism 3 until the first spindle seat 2 stops rotating, and then when the second torque output mechanism 5 drives the spindle to drive the first spindle seat 2 to rotate, the reverse torque exerted on the spindle by the damping adjusting mechanism 3 through the first spindle seat 2 can be known.
And the second method comprises the following steps: the servo motor always outputs the maximum torque to the output shaft 4b through the speed reducer, the damping adjusting mechanism 3 gradually adjusts the resistance applied to the first spindle seat 2, the output shaft 4b always drives the first spindle seat 2 to rotate, and a worker can acquire a signal sent by the torque sensor through the controller to know the reverse torque applied to the spindle by the damping adjusting mechanism 3 through the first spindle seat 2.
As shown in fig. 11, the second torque output mechanism 5 includes:
the second spindle seat 5a is rotatably arranged on the frame, and the spindle is detachably connected with the second spindle seat 5 a;
an inertia wheel 5b rotatably provided on the second spindle base 5a, the inertia wheel 5b being coaxial with the second spindle base 5 a;
the clutch 5c is arranged on the inertia wheel 5b, and the inertia wheel 5b is in transmission connection with the second spindle seat 5a through the clutch 5 c;
and a first rotation driving mechanism 5d arranged on the frame, wherein the first rotation driving mechanism 5d is used for driving the inertia wheel 5b to rotate.
Specifically, the method comprises the following steps: the second spindle base 5a has the same structure as the first spindle base 2, and the second spindle base 5a is rotatably mounted on the frame through a bearing seat.
The operating principle of the second torque output mechanism 5 is as follows: firstly, the transposition mechanism 6 drives the support 1 to move, so that the first spindle seat 2 and the second spindle seat 5a are respectively and fixedly connected with two ends of a spindle, then, the clutch 5c disconnects the transmission connection between the inertia wheel 5b and the second spindle seat 5a, the first rotation driving mechanism 5d drives the inertia wheel 5b to rotate in an accelerating mode gradually, the inertia wheel 5b rotates on the second spindle seat 5a in an idling mode and rotates at a high speed, at the moment, the inertia wheel 5b has huge inertia, then, the clutch 5c connects the inertia wheel 5b with the second spindle seat 5a in a transmission mode, the inertia wheel 5b applies huge inertia torque impact on the second spindle seat 5a, namely, the spindle is subjected to huge inertia torque impact, the instant torque borne by the spindle is equal to the resistance force applied on the first spindle seat 2 by the damping adjusting mechanism 3, and the part, beyond the output torque of the second torque output mechanism 5, drives the first spindle seat 2 to rotate.
As shown in fig. 11 and 12, the first rotary drive mechanism 5d includes:
a transmission shaft 5d1 rotatably provided on the frame;
the gear 5d2 is coaxially and fixedly arranged at one end of the transmission shaft 5d1, and a gear ring meshed with the gear 5d2 is arranged on the outer side of the inertia wheel 5 b;
a flywheel 5d3 coaxially and fixedly installed at the other end of the transmission shaft 5d 1;
and the rotary driver 5d4 is arranged on the frame, and the rotary driver 5d4 is used for driving the flywheel 5d3 to rotate.
The first rotation driving mechanism 5d operates in the following manner: the rotary driver 5d4 is a servo motor, the rotary driver 5d4 drives the flywheel 5d3 to rotate through a belt transmission mechanism, the flywheel 5d3 drives the inertia wheel 5b to rotate through the transmission shaft 5d1 and the gear 5d2, and the inertia wheel 5b rotates and stores energy.
As shown in fig. 12, the first rotary drive mechanism 5d further includes:
the flywheel 5d3 is rotatably arranged on the transmission shaft 5d1 through the one-way bearing 5d5, and when the rotating speed of the flywheel 5d3 is higher than that of the transmission shaft 5d1, the flywheel 5d3 is in transmission connection with the transmission shaft 5d1 through the one- way bearing 5d 5.
The working principle of the one-way bearing 5d5 is as follows: the one-way bearing is also called an overrunning clutch, and functions in that when the rotating driver 5d4 drives the flywheel 5d3 to rotate through the belt transmission mechanism, and the rotating speed of the flywheel 5d3 is always higher than that of the transmission shaft 5d1 in the process of increasing the rotating speed of the flywheel 5d3, so that the flywheel 5d3 drives the transmission shaft 5d1 to gradually accelerate and rotate, and further the rotating driver 5d4 can drive the inertia wheel 5b to rotate at a high speed so as to store energy, after the inertia wheel 5b reaches a certain rotating speed, the rotating driver 5d4 stops working, the flywheel 5d3 gradually stops rotating, the inertia wheel 5b continues to rotate at a high speed under the action of inertia, and the transmission shaft 5d1 idles relative to the flywheel 5d3 under the action of the one-way bearing 5d5 until the clutch 5c drivingly connects the second spindle base 5a and the inertia wheel 5 b. The steps effectively avoid: when the rotary actuator 5d4 is directly geared with the flywheel 5b, the flywheel 5b immediately decelerates to immediately decelerate the output shaft of the rotary actuator 5d4, which causes a problem of a large load on the rotary actuator 5d 4.
As shown in fig. 3, 4 and 6, the index mechanism 6 includes:
the linear driver 6a is horizontally arranged, and the bracket 1 is fixedly arranged at the driving end of the linear driver 6 a;
and the second rotary driving mechanism 6b is arranged on the frame, an output shaft of the second rotary driving mechanism 6b is vertically arranged, and a non-working part of the linear driver 6a is fixedly arranged at a driving end of the second rotary driving mechanism 6 b.
Specifically, the method comprises the following steps: the second rotary driving mechanism 6b includes a fixed table 6b1 and a rotary table 6b2 rotatably mounted on the fixed table 6b1, the rotary table 6b2 is rotatably connected to the fixed table 6b1 via a rotary support 6b3, an index plate 6b4 for driving the rotary table 6b2 to rotate is mounted between the fixed table 6b1 and the rotary table 6b2, and the rotary support 6b3 is used for bearing the weight of the rotary table 6b 2.
The working principle of the transposition mechanism 6 is as follows: the output ends of the first torque output mechanism 4 and the second torque output mechanism 5 are respectively arranged at two sides of the transposition mechanism 6, and the second rotation driving mechanism 6b is used for driving the support 1 to rotate back and forth for 180 degrees, so that the first spindle base 2 is coaxially aligned with the output shaft 4b or the second spindle base 5a respectively.
When adjusting the damping adjustment mechanism 3: the linear driver 6a drives the support 1 to approach the first torque output mechanism 4, so that the first spindle base 2 is inserted into the output shaft 4b, and the first spindle base 2 is in transmission connection with the output shaft 4b through the key 2a.
When inertia torque impact is performed on the main shaft: the linear driver 6a drives the support 1 to be close to the second torque output mechanism 5, so that a spindle mounted on the first spindle seat 2 is inserted into the second spindle seat 5a, and the first spindle seat 2 and the second spindle seat 5a are in transmission connection with the spindle through keys.
The working principle of the invention is as follows:
step one, a transposition mechanism 6 drives a support 1 to move, so that a first spindle seat 2 is in transmission connection with an output shaft 4b, and a first torque output mechanism 4 outputs constant torque through a built-in servo motor and a speed reducer to drive the first spindle seat 2 to rotate;
step two, the damping adjusting mechanism 3 gradually increases the resistance of the relative rotation between the support 1 and the first spindle seat 2, and the first torque output mechanism 4 detects the torque between the output shaft 4b and the first spindle seat 2 through a built-in torque sensor thereof until the torque between the output shaft 4b and the first spindle seat 2 reaches a preset value;
step three, the damping adjusting mechanism 3 stops adjusting the resistance of the relative rotation between the support 1 and the first spindle seat 2, the first torque output mechanism 4 stops working, and the transposition mechanism 6 drives the support 1 to move, so that the first spindle seat 2 and the output shaft 4b are disconnected in transmission;
inserting one end of the main shaft into the first main shaft seat 2, and enabling the main shaft to be in transmission connection with the first main shaft seat 2;
fifthly, the transposition mechanism 6 drives the support 1 to move, so that the other end of the spindle mounted on the first spindle seat 2 is inserted into the second spindle seat 5a, and the spindle is in transmission connection with the second spindle seat 5 a;
step six, the first rotation driving mechanism 5d drives the inertia wheel 5b to rotate in an accelerating mode gradually until the rotating speed of the inertia wheel 5b reaches a preset numerical value;
step seven, the clutch 5c is connected with the second spindle seat 5a and the inertia wheel 5b, the spindle is impacted by instantaneous torque, and the spindle drives the first spindle seat 2 to rotate by overcoming the resistance of the damping adjusting mechanism 3 under the driving of the second torque output mechanism 5;
step eight, the bracket 1 is driven to move by the transposition mechanism 6, so that the transmission connection between the main shaft and the second main shaft seat 5a is released;
step nine, detaching the main shaft from the first main shaft seat 2, detecting the deformation and damage conditions of the main shaft by using an instrument, and evaluating the anti-torque performance of the main shaft; if the main shaft is not damaged, executing a step ten, and if the main shaft is damaged, executing a step eleven;
step ten, increasing a preset torque value between the output shaft 4b and the first spindle seat 2 through a controller, and then repeating the steps one to nine;
step eleven, stopping the test, wherein the preset torque value between the output shaft 4b and the first spindle seat 2 in the previous test is the maximum torque resistance performance value of the spindle.
Example 2:
as shown in fig. 7 and 9, compared to embodiment 1, the damping adjustment mechanism 3 of this embodiment further includes a second mounting bracket for fixedly connecting the second friction disk 3b and the output end of the first linear driver 3c, and the second mounting bracket includes:
the second movable plate 3g, the second friction disc 3b and the second movable plate 3g are fixedly connected, and the second movable plate 3g is arranged on the other side of the fixed plate 1a in parallel;
the movable shaft 3h is coaxial with and fixedly connected with the second movable plate 3g, the movable shaft 3h is arranged on one side, away from the fixed plate 1a, of the second movable plate 3g, and the movable shaft 3h is fixedly connected with the output end of the first linear driver 3 c;
and the linear bearing 3i is fixedly arranged on the bracket 1, and the movable shaft 3h is in sliding connection with the linear bearing 3 i.
The working principle of the second mounting bracket is as follows:
the second friction disk 3b is provided with a plurality of countersunk holes, and the second friction disk 3b is fixedly connected with the second movable plate 3g by bolts installed inside the countersunk holes, so that the second friction disk 3b can be replaced.
The linear bearing 3i serves to bear the weight of the second friction disk 3b, the second movable plate 3g, and the movable shaft 3h, so that the second friction disk 3b is smoothly moved along the axis of the first spindle stock 2.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a through inertia impact test elevator main shaft antitorque square capability's testing arrangement which characterized in that, includes the frame to and install in the frame:
a support (1);
the first spindle seat (2) is rotatably arranged on the support (1), a spindle and the first spindle seat (2) are coaxially arranged, and the spindle is detachably connected with the first spindle seat (2);
the damping adjusting mechanism (3) is fixedly arranged on the support (1), and the damping adjusting mechanism (3) is used for adjusting the resistance of relative rotation between the first spindle seat (2) and the support (1);
the first torque output mechanism (4) is fixedly arranged on the frame, and the first torque output mechanism (4) is used for outputting constant torque to the first spindle seat (2);
the second torque output mechanism (5) is fixedly arranged on the rack, the second torque output mechanism (5) is used for outputting instantaneous torque to a main shaft arranged on the first main shaft seat (2), and the output power of the second torque output mechanism (5) is greater than the maximum output power of the first torque output mechanism (4);
the transposition mechanism (6) is fixedly installed on the rack, and the transposition mechanism (6) is used for moving the support (1) so that the first spindle seat (2) is in transmission connection with the output end of the first torque output mechanism (4), or a spindle installed on the first spindle seat (2) is in transmission connection with the output end of the second torque output mechanism (5).
2. The device for testing the torque resistance of the elevator spindle through inertial impact according to claim 1, wherein a fixing plate (1 a) is arranged on the support (1), a bearing (1 b) is embedded in the fixing plate (1 a), the first spindle base (2) is in a circular ring shape, the first spindle base (2) is coaxially installed on an inner ring of the bearing (1 b), the inner diameter of the first spindle base (2) is in clearance fit with the outer diameter of the spindle, and a key (2 a) in transmission connection with the spindle is embedded on the inner circumferential surface of the first spindle base (2).
3. A test device for testing the torque resistance of an elevator main shaft through inertial impact according to claim 2, characterized in that the damping adjustment mechanism (3) comprises:
the first friction disc (3 a) is coaxially arranged on one side of the first spindle seat (2), the diameter of the first friction disc (3 a) is smaller than that of the first spindle seat (2), and the first friction disc (3 a) is fixedly connected with the support (1);
the second friction disc (3 b) is coaxially arranged on the other side of the first spindle seat (2), and the shape and the size of the second friction disc (3 b) are the same as those of the first friction disc (3 a);
the first linear driver (3 c) is fixedly installed on the support (1), the output end of the first linear driver (3 c) is fixedly connected with the second friction disc (3 b), and the first linear driver (3 c) is used for driving the second friction disc (3 b) to be close to the first friction disc (3 a), so that the first spindle seat (2) is clamped between the first friction disc (3 a) and the second friction disc (3 b).
4. A device for testing the torque resistance of an elevator shaft by inertial impact according to claim 3, characterized in that the damping adjustment mechanism (3) further comprises a first mounting bracket for fixedly connecting the first friction disk (3 a) and the bracket (1), the first mounting bracket comprising:
the first movable plate (3 d), the first friction disk (3 a) and the first movable plate (3 d) are fixedly connected, and the first movable plate (3 d) is arranged on one side of the fixed plate (1 a) in parallel;
the bolt pairs (3 e) are provided with a plurality of bolts, and the fixed plate (1 a) and the first movable plate (3 d) are fixedly connected through the bolt pairs (3 e);
the number of the sleeves (3 f) is the same as that of the bolt pairs (3 e) and corresponds to that of the bolt pairs (3 e), the sleeves (3 f) are sleeved on each bolt pair (3 e), the sleeves (3 f) are arranged between the fixed plate (1 a) and the first movable plate (3 d), and the axial length of the sleeves (3 f) is smaller than the minimum distance between the first movable plate (3 d) and the fixed plate (1 a).
5. A device for testing the torque resistance of an elevator shaft by inertial impaction according to claim 3, wherein the damping adjustment mechanism (3) further comprises a second mounting bracket for fixedly connecting a second friction disc (3 b) and the output end of the first linear actuator (3 c), the second mounting bracket comprising:
the second movable plate (3 g), the second friction disc (3 b) and the second movable plate (3 g) are fixedly connected, and the second movable plate (3 g) is arranged on the other side of the fixed plate (1 a) in parallel;
the movable shaft (3 h) is coaxial with and fixedly connected with the second movable plate (3 g), the movable shaft (3 h) is arranged on one side, away from the fixed plate (1 a), of the second movable plate (3 g), and the movable shaft (3 h) is fixedly connected with the output end of the first linear driver (3 c);
and the linear bearing (3 i) is fixedly arranged on the bracket (1), and the movable shaft (3 h) is in sliding connection with the linear bearing (3 i).
6. A test device for testing the torque resistance of an elevator main shaft by inertial impact according to claim 1, characterized in that the first torque output mechanism (4) comprises:
a housing;
a rotary driver disposed inside the housing;
the output shaft (4 b) is rotatably arranged on the shell, one end of the output shaft (4 b) is positioned in the shell, and the other end of the output shaft (4 b) is positioned outside the shell and can be in transmission connection with the first spindle seat (2);
and the torque sensor is arranged in the shell, and the output end of the rotary driver is in transmission connection with the output shaft (4 b) through the torque sensor.
7. A test device for testing the torque resistance of an elevator main shaft by inertial impaction according to claim 1, characterized in that the second torque output mechanism (5) comprises:
the second spindle seat (5 a) is rotatably arranged on the frame, and the spindle is detachably connected with the second spindle seat (5 a);
an inertia wheel (5 b) rotatably provided on the second spindle base (5 a), the inertia wheel (5 b) being coaxial with the second spindle base (5 a);
the clutch (5 c) is arranged on the inertia wheel (5 b), and the inertia wheel (5 b) is in transmission connection with the second spindle seat (5 a) through the clutch (5 c);
and the first rotary driving mechanism (5 d) is arranged on the frame, and the first rotary driving mechanism (5 d) is used for driving the inertia wheel (5 b) to rotate.
8. A test device for testing the torque resistance of an elevator main shaft by inertial impaction according to claim 7, characterized in that the first rotary drive mechanism (5 d) comprises:
a transmission shaft (5 d 1) rotatably provided on the frame;
the gear (5 d 2) is coaxially and fixedly arranged at one end of the transmission shaft (5 d 1), and a gear ring meshed with the gear (5 d 2) is arranged on the outer side of the inertia wheel (5 b);
the flywheel (5 d 3) is coaxially and fixedly arranged at the other end of the transmission shaft (5 d 1);
and the rotary driver (5 d 4) is arranged on the frame, and the rotary driver (5 d 4) is used for driving the flywheel (5 d 3) to rotate.
9. A test device for testing the torque resistance of an elevator shaft by inertial impact according to claim 8, characterized in that the first rotary drive mechanism (5 d) further comprises:
one-way bearing (5 d 5), one-way bearing (5 d 5) suit is on transmission shaft (5 d 1), and flywheel (5 d 3) rotatably installs on transmission shaft (5 d 1) through one-way bearing (5 d 5), and when the rotational speed of flywheel (5 d 3) was higher than the rotational speed of transmission shaft (5 d 1), flywheel (5 d 3) were connected with transmission shaft (5 d 1) transmission through one-way bearing (5 d 5).
10. A device for testing the torque resistance of an elevator spindle by inertial impaction according to claim 1, characterized in that the indexing mechanism (6) comprises:
the linear driver (6 a), the linear driver (6 a) is horizontally arranged, and the bracket (1) is fixedly arranged at the driving end of the linear driver (6 a);
the second rotary driving mechanism (6 b) is arranged on the rack, an output shaft of the second rotary driving mechanism (6 b) is vertically arranged, and the non-working part of the linear driver (6 a) is fixedly arranged at the driving end of the second rotary driving mechanism (6 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011003937.6A CN112197961B (en) | 2020-09-22 | 2020-09-22 | Testing device for testing anti-torque performance of elevator main shaft through inertial impact |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011003937.6A CN112197961B (en) | 2020-09-22 | 2020-09-22 | Testing device for testing anti-torque performance of elevator main shaft through inertial impact |
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| CN112197961A CN112197961A (en) | 2021-01-08 |
| CN112197961B true CN112197961B (en) | 2022-12-09 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101941628A (en) * | 2010-09-13 | 2011-01-12 | 浙江西子富沃德电机有限公司 | Elevator tractor |
| CN105444949B (en) * | 2015-11-13 | 2018-03-30 | 西北工业大学 | A kind of rotary inertia testboard based on torque sensor |
| CN105823613B (en) * | 2016-03-22 | 2018-01-16 | 清华大学深圳研究生院 | A kind of torsion dynamic stiffness detecting system of magnetic loaded type lathe live spindle |
| CN206901637U (en) * | 2017-05-09 | 2018-01-19 | 浙江西子重工机械有限公司 | A kind of elevator hand barring device |
| CN108398262B (en) * | 2018-02-08 | 2020-04-21 | 北京航空航天大学 | Wet friction pair belt row torque test bed and test method |
| CN108760115A (en) * | 2018-05-24 | 2018-11-06 | 北京力信德华科技有限公司 | Testboard |
| CN109827770B (en) * | 2019-03-20 | 2021-02-26 | 重庆理工大学 | Device and method suitable for testing impact load of automobile gearbox gear |
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Effective date of registration: 20221116 Address after: 421200 Room 1406, Block A, Innovation Center, Hengyang Hi tech Zone, Hunan Province Applicant after: Hunan Xinchang Elevator Sales Service Co.,Ltd. Address before: No. 6, Jingyuan Road, Ningbo high tech Zone, Zhejiang Province Applicant before: Shi Qiming |
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Address after: 421200 Room 1406, Block A, Innovation Center, Hengyang Hi tech Zone, Hunan Province Patentee after: Hunan Xinchang Elevator Engineering Co.,Ltd. Address before: 421200 Room 1406, Block A, Innovation Center, Hengyang Hi tech Zone, Hunan Province Patentee before: Hunan Xinchang Elevator Sales Service Co.,Ltd. |