CN214243612U - Motor hoisting system based on box girder static load test system - Google Patents
Motor hoisting system based on box girder static load test system Download PDFInfo
- Publication number
- CN214243612U CN214243612U CN202022725051.4U CN202022725051U CN214243612U CN 214243612 U CN214243612 U CN 214243612U CN 202022725051 U CN202022725051 U CN 202022725051U CN 214243612 U CN214243612 U CN 214243612U
- Authority
- CN
- China
- Prior art keywords
- automatic screw
- frame
- jack
- sawtooth
- copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a motor hoisting system based on a box girder static load test system, which comprises: the steel ingot balance device comprises a balance weight steel ingot, a pressure sensor, an automatic screw jack, a gasket group, a reaction frame, a winding degree observation instrument, a lower support steel frame and a control system; the automatic screw jack includes: the lifting device comprises a top disc, a sawtooth-shaped screw, a sleeve, a main jack frame, a copper nut, a worm shaft, a lifting handle, a ratchet mechanism, a copper turbine, a thrust ball bearing, a radial ball bearing, a chassis, a driving connecting rod and a servo electric cylinder; the control system is respectively and electrically connected with the automatic screw jacks, the pressure sensor and the winding degree observation instrument, and is used for controlling a group of automatic screw jacks to synchronously act; the invention has the advantages that: the automatic screw jack is used for replacing a hydraulic jack to support the reaction frame, the requirement of recording force in a static load experiment on the simply supported box girder of the ballastless track of the special railway can be met, and the automatic screw jack has the advantages of low cost, simplicity in use, stable and reliable performance and the like.
Description
Technical Field
The utility model belongs to the technical field of the hoist, especially, relate to a motor hoisting system based on box girder static load test system.
Background
The bridge of application needs to carry out the test of dead load experiment through the letter case roof beam at the railway laying in-process, and the bearing capacity of bridge in the reality can be seen in the working condition and the dynamic behavior of experiment, and data through dead load experiment and theoretical analysis obtain makes comprehensive analysis to the bridge of laying to reach the load level of bridge. In this static test, a jack was used. However, when the hydraulic jack loads the force on the rail, the defects are mainly shown in that a hydraulic pump station is needed, the size is large, the weight is heavy, the operation is inconvenient, an oil pipe needs to be longer, and the overall configuration of the jack used in bridge detection is too heavy.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a motor hoisting system based on box girder static load test system for replace hydraulic jack to carry out the static load experiment of the simply supported box girder of ballastless track of special railway, in order to overcome above-mentioned prior art not enough.
The utility model provides a motor hoisting system based on box girder static test system, include: the steel ingot balance device comprises a balance weight steel ingot, a pressure sensor, an automatic screw jack, a gasket group, a reaction frame, a winding degree observation instrument, a lower support steel frame and a control system;
the counterweight steel ingot is arranged at the position, located at the center, of the top of the reaction frame, two ends of the reaction frame are located on the end face of the top of the lower support steel frame, a group of automatic screw jacks are arranged between the reaction frame and the lower support steel frame, the bottoms of the automatic screw jacks are arranged on the lower support steel frame, the tops of the automatic screw jacks are supported against the bottom of the reaction frame, the pressure sensor is arranged at the position, where the automatic screw jacks are in contact with the reaction frame, the gasket group is arranged at the joint of the bottoms of the automatic screw jacks and the lower support steel frame, and the winding degree observation instrument is arranged at the position, close to the bottom, of the lower support steel frame;
wherein, automatic screw jack includes: the lifting device comprises a top disc, a sawtooth-shaped screw, a sleeve, a main jack frame, a copper nut, a worm shaft, a lifting handle, a ratchet mechanism, a copper turbine, a thrust ball bearing, a radial ball bearing, a chassis, a driving connecting rod and a servo electric cylinder; the jack main frame is arranged at the top of the sawtooth-shaped screw rod, the sleeve is fixedly connected to the chassis along the vertical direction by the jack main frame, the copper nut is fixedly connected to the inner wall of the sleeve, the sawtooth-shaped screw rod is in threaded connection with the inside of the copper nut, the length of the copper nut is consistent with the spiral height of the sawtooth-shaped screw rod, the copper turbine thread is sleeved on the sawtooth-shaped screw rod, a group of thrust ball bearings are arranged in installation grooves in the chassis, the copper turbine is arranged on the thrust ball bearings through buffer gaskets, the radial ball bearings are sleeved at the bottom of the sawtooth-shaped screw rod and arranged on the chassis, the ratchet mechanism is arranged on one side of the jack main frame, the worm shaft is arranged on a ratchet wheel of the ratchet mechanism, the ratchet mechanism drives the copper turbine through the worm shaft, the copper turbine drives the sawtooth-shaped screw rod to reciprocate up and down in the copper nut, the jack handle is arranged on the jack main frame and located on the same side of the ratchet mechanism, and the servo electric cylinder is connected with the jack handle through a driving connecting rod and drives the ratchet mechanism;
the control system is electrically connected with the automatic screw jacks, the pressure sensor and the winding degree observation instrument respectively, and the control system is used for controlling the group of automatic screw jacks to act synchronously.
Preferably, the group of automatic screw jacks comprises five automatic screw jacks, the five automatic screw jacks are uniformly arranged on the lower supporting steel frame, and the five automatic screw jacks are used for synchronously jacking the reaction frame.
Preferably, the number of the thrust ball bearings is two, the two thrust ball bearings are symmetrically arranged on two sides of the sawtooth-shaped screw rod, the buffer gasket is a rubber gasket, and the buffer gasket is arranged between the thrust ball bearings and the copper turbine.
Preferably, the zigzag screw is provided with zigzag threads which are not isosceles trapezoids.
The utility model has the advantages as follows:
1. the utility model discloses a motor hoisting system has compensatied hydraulic jack is bulky, it is inconvenient to use, it is high to the sensitive manufacturing accuracy requirement of temperature variation, the technology is complicated, can not guarantee the stationarity of motion and shortcomings such as exactness in addition, this application supports the reaction frame through automatic screw jack in order to replace hydraulic jack, can satisfy and carry out the requirement that the static load experiment recorded the power to the ballastless track simple support case roof beam of special line railway, and have with low costs, and is simple to use, advantages such as stable performance is reliable.
2. The utility model discloses an automatic screw jack utilizes lever (servo electronic jar) to drive screw jack and reaches the purpose of applying external force load, can carry out synchronous control to multiunit servo electronic jar through control system, and the jack-up effect is better, can ensure that the experiment is more accurate.
3. The utility model discloses a screw jack's transmission is accomplished through the screw rod and the vice cooperation of nut formation screw thread. It converts the rotational movement of the nut into linear movement of the screw. The thread pair has stable and reliable motion, small and convenient structure and convenient self-locking.
4. The utility model discloses a zigzag screw rod adopts trapezoidal thread's root intensity high than other screw thread root intensities to trapezoidal thread compares with other screw threads and has better manufacturability.
5. The utility model discloses a screw drive has been constituteed jointly to these two parts of turbine and worm. The worm wheel and the worm can transmit power between the moving staggered shafts to ensure that the transmission is more stable.
6. The utility model discloses a copper nut adopts full stroke long nut, can ensure that the zigzag screw rod can help the better bearing pressure of zigzag screw rod when the in-process that rises is more steady.
Drawings
Other objects and results of the invention will be more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the automatic screw jack of the present invention.
Wherein the reference numerals are: the steel ingot counterweight system comprises a counterweight steel ingot 1, a pressure sensor 2, an automatic screw jack 3, a top disc 301, a sawtooth-shaped screw 302, a sleeve 303, a jack main frame 304, a copper nut 305, a worm shaft 306, a lifting handle 307, a ratchet mechanism 308, a copper turbine 309, a thrust ball bearing 310, a radial ball bearing 311, a chassis 312, a driving connecting rod 313, a servo electric cylinder 314, a buffer gasket 315, a gasket group 4, a reaction frame 5, a winding degree observer 6 and a lower support steel frame 7.
Detailed Description
In order to make the technical solution and advantages of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the scope of the present invention.
Referring to fig. 1 to 2: the motor hoisting system based on box girder static test system in this embodiment includes: the steel ingot balance device comprises a balance weight steel ingot 1, a pressure sensor 2, an automatic screw jack 3, a gasket group 4, a reaction frame 5, a winding degree observation instrument 6, a lower support steel frame 7 and a control system.
The counter weight steel ingot 1 in this embodiment is installed at the position that the top of reaction frame 5 is located the center, the both ends of reaction frame 5 are located the top terminal surface of lower bracing steelframe 7, a set of five automatic screw jack 3 of total are installed between reaction frame 5 and lower bracing steelframe 7, the bottom of automatic screw jack 3 is installed on lower bracing steelframe 7, its top is held in the bottom of reaction frame 5, pressure sensor 2 installs the position of the top dish and the contact of reaction frame 5 at automatic screw jack 3, gasket group 4 installs the junction at the chassis of automatic screw jack 3 and lower bracing steelframe 7, winding degree visualizer 6 installs the position that lower bracing steelframe 7 is close to the bottom.
The automatic screw jack 3 in the present embodiment includes: the lifting device comprises a top disc 301, a sawtooth-shaped screw 302, a sleeve 303, a lifting jack main frame 304, a copper nut 305, a worm shaft 306, a lifting handle 307, a ratchet mechanism 308, a copper turbine 309, a thrust ball bearing 310, a radial ball bearing 311, a bottom disc 312, a driving connecting rod 313 and a servo electric cylinder 314; the top disc 301 is arranged at the top of the sawtooth-shaped screw 302, the jack main frame 304 fixedly connects the sleeve 303 on the bottom disc 312 along the vertical direction, the copper nut 305 is fixedly connected on the inner wall of the sleeve 303, the sawtooth-shaped screw 302 is connected in the copper nut 305 in a threaded manner, the length of the copper nut 305 is consistent with the spiral height of the sawtooth-shaped screw 302, the copper turbine 309 is sleeved on the sawtooth-shaped screw 302 in a threaded manner, a group of two thrust ball bearings 310 are arranged in the mounting grooves on the bottom disc 312, the copper turbine 309 is arranged on the thrust ball bearings 310 through a buffer gasket 315, the radial ball bearing 311 is sleeved on the bottom of the sawtooth-shaped screw 302 and arranged on the bottom disc 312, the ratchet mechanism 308 is arranged at one side of the jack main frame 304, the worm shaft 306 is arranged on the ratchet wheel of the ratchet mechanism 308, the ratchet wheel mechanism 308 drives the copper turbine 309 through the worm shaft 306, the copper turbine 309 drives the sawtooth-shaped screw 302 to reciprocate up and down in the copper nut 305, the lifting handle 307 is mounted on the main jack frame 304 on the same side as the ratchet mechanism 308, and the servo electric cylinder 314 is connected to the lifting handle 307 by a drive connecting rod 313 and drives the ratchet mechanism 308.
The control system (general processor) in this embodiment is electrically connected to the automatic screw jacks 3, the pressure sensor 2, and the winding degree observer 6, and the control system is configured to control a group of automatic screw jacks 3 to operate synchronously.
The group of automatic screw jacks 3 in the embodiment is five automatic screw jacks 3, the five automatic screw jacks 3 are uniformly arranged on the lower supporting steel frame 7, and the five automatic screw jacks 3 are used for synchronously jacking the reaction frame 5.
In this embodiment, two thrust ball bearings 310 are provided, the two thrust ball bearings 310 are symmetrically disposed on two sides of the sawtooth-shaped screw 302, the buffer washer 315 is a rubber washer, and the buffer washer 315 is installed between the thrust ball bearings 310 and the copper turbine 309.
Preferably, the serrated screw 302 is a serrated thread having a shape other than an isosceles trapezoid.
The working principle is as follows: the five automatic screw jacks 3 drive a reaction frame 5 to be matched with a winding degree observation instrument 6 to carry out a static load experiment on the railway ballastless track simply-supported box girder, the automatic screw jacks 3 mainly drive a lifting handle 307 through a servo electric cylinder 314 by driving a connecting rod 313 to reciprocate, then drive a ratchet mechanism 308 through the lifting handle 307, and the ratchet mechanism 308 drives a worm shaft 306 and a copper turbine 309 so as to realize the lifting of the sawtooth-shaped screw 302.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The utility model provides a motor jack-up system based on box girder static test system which characterized in that includes: the steel ingot balance device comprises a balance weight steel ingot, a pressure sensor, an automatic screw jack, a gasket group, a reaction frame, a winding degree observation instrument, a lower support steel frame and a control system;
the counterweight steel ingot is arranged at the position, located at the center, of the top of the reaction frame, two ends of the reaction frame are located on the end face of the top of the lower support steel frame, one group of automatic screw jacks are arranged between the reaction frame and the lower support steel frame, the bottoms of the automatic screw jacks are arranged on the lower support steel frame, the tops of the automatic screw jacks are supported against the bottom of the reaction frame, the pressure sensor is arranged at the position, where the automatic screw jacks are in contact with the reaction frame, the gasket group is arranged at the connection position of the bottoms of the automatic screw jacks and the lower support steel frame, and the winding degree observer is arranged at the position, close to the bottom, of the lower support steel frame;
wherein the automatic screw jack comprises: the lifting device comprises a top disc, a sawtooth-shaped screw, a sleeve, a main jack frame, a copper nut, a worm shaft, a lifting handle, a ratchet mechanism, a copper turbine, a thrust ball bearing, a radial ball bearing, a chassis, a driving connecting rod and a servo electric cylinder; the top disc is arranged at the top position of the sawtooth-shaped screw rod, the jack main frame fixedly connects the sleeve on the chassis along the vertical direction, the copper nut is fixedly connected on the inner wall of the sleeve, the sawtooth-shaped screw rod is in threaded connection with the inside of the copper nut, the length of the copper nut is consistent with the spiral height of the sawtooth-shaped screw rod, the copper turbine thread is sleeved on the sawtooth-shaped screw rod, a group of thrust ball bearings are arranged in the installation grooves on the chassis, the copper turbine is arranged on the thrust ball bearings through buffer gaskets, the radial ball bearings are sleeved at the bottom of the sawtooth-shaped screw rod and arranged on the chassis, the ratchet mechanism is arranged at one side of the jack main frame, the worm shaft is arranged on the ratchet wheel of the ratchet mechanism, the ratchet mechanism drives the copper turbine through the worm shaft, the copper turbine drives the sawtooth-shaped screw rod to reciprocate up and down in the copper nut, the lifting handle is arranged on the main jack frame and is positioned on the same side of the ratchet mechanism, and the servo electric cylinder is connected with the lifting handle through a driving connecting rod and drives the ratchet mechanism;
the control system is electrically connected with the automatic screw jacks, the pressure sensor and the winding degree observation instrument respectively and is used for controlling a group of automatic screw jacks to act synchronously.
2. The electric motor hoisting system based on box girder static load test system of claim 1, wherein the set of automatic screw jacks comprises five automatic screw jacks, the five automatic screw jacks are uniformly arranged on the lower support steel frame, and the five automatic screw jacks are used for synchronously jacking the reaction frame.
3. The electric motor hoisting system based on box girder static load test system according to claim 1, characterized in that one set of the thrust ball bearings is two, the two thrust ball bearings are symmetrically arranged on both sides of the zigzag screw, the buffer gasket is a rubber gasket, and the buffer gasket is arranged between the thrust ball bearings and the copper turbine.
4. The box girder static load test system-based motor hoisting system according to claim 1, wherein the zigzag screw is provided with zigzag threads which are not isosceles trapezoids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022725051.4U CN214243612U (en) | 2020-11-23 | 2020-11-23 | Motor hoisting system based on box girder static load test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022725051.4U CN214243612U (en) | 2020-11-23 | 2020-11-23 | Motor hoisting system based on box girder static load test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214243612U true CN214243612U (en) | 2021-09-21 |
Family
ID=77733618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022725051.4U Active CN214243612U (en) | 2020-11-23 | 2020-11-23 | Motor hoisting system based on box girder static load test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214243612U (en) |
-
2020
- 2020-11-23 CN CN202022725051.4U patent/CN214243612U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202974240U (en) | Rudder clearance measurement device | |
| CN101581629B (en) | Self-locking test device of automobile cable pulley type glass lifter | |
| CN103487264A (en) | Testing device for single-wheel traction performance | |
| CN208780607U (en) | A kind of Portable Automatic loading wall heat insulation material scene binding strength detecting instrument | |
| CN212769654U (en) | Stable lifting platform | |
| CN214243612U (en) | Motor hoisting system based on box girder static load test system | |
| CN105421589B (en) | A kind of house studied for low rise buildings roof system wind pressure actual measurement | |
| CN216669491U (en) | Concrete bending moment pressure test structure | |
| CN110426200A (en) | Heavily loaded planetary roller screw pair comprehensive performance measuring device and measuring method | |
| CN102840433A (en) | Free elevating tripod head system for three-dimensional camera of ground unmanned reconnaissance car | |
| CN112408234A (en) | Motor hoisting system based on box beam static load test system | |
| CN112125212A (en) | Scissor lifting mechanism | |
| CN202582983U (en) | Mobile beam locking device of compression testing machine | |
| CN211425893U (en) | Building cylinder load detection device | |
| CN214171714U (en) | Deflection detection device for bridge load test | |
| CN202429949U (en) | Jack | |
| CN214843992U (en) | Flange fixed car draw gear loading equipment before electronic jar | |
| CN216160287U (en) | Paddy field soil mechanics parameter measuring equipment | |
| CN212379205U (en) | Microcomputer control electro-hydraulic servo static pressure shear testing machine | |
| CN2681132Y (en) | Static shear yield strength testing device for electrorheological liquor | |
| CN220664685U (en) | Bearing device for hoisting equipment installation | |
| CN219094998U (en) | Wind power generation yaw brake dismounting device | |
| CN212674607U (en) | Device convenient to detect bridge bearing capacity | |
| CN218261438U (en) | High-efficient quick hoist installation check out test set for elevator | |
| CN213875009U (en) | Geotechnical engineering multifunctional lifting table testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |