CN210824538U - Maintenance platform suitable for chute of high altitude loading - Google Patents
Maintenance platform suitable for chute of high altitude loading Download PDFInfo
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- CN210824538U CN210824538U CN201921608459.4U CN201921608459U CN210824538U CN 210824538 U CN210824538 U CN 210824538U CN 201921608459 U CN201921608459 U CN 201921608459U CN 210824538 U CN210824538 U CN 210824538U
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Abstract
The utility model belongs to the technical field of the maintenance that relates to the loading chute, specifically be an overhaul platform suitable for high altitude loading chute, when having solved current loading chute and having broken down, the staff can't directly reach the fault location and overhaul the technical problem because of the high altitude. The utility model comprises an electric control device, a rotating frame, a push rod motor, a platform supporting rod, a non-maintenance position limit switch, a maintenance position limit switch and the like; the electric control device comprises a first start-stop button, a second start-stop button, a first contactor, a second contactor and the like, wherein the first start-stop button and the second start-stop button are used for controlling the motor to rotate reversely. The utility model discloses the structure cooperation is ingenious, and electrically controlled device control is rigorous, when needs overhaul the utility model discloses set up into interim maintenance platform, overhaul simultaneously the train and can pass through, when not needing to overhaul, the platform can be accomodate to train track lateral wall on, saves space, has guaranteed near train track working face clean and tidy, personal safety when effectively having ensured maintainer high altitude construction, is favorable to coal mine safety production moreover.
Description
Technical Field
The utility model relates to an overhaul technical field of loading chute specifically is an overhaul platform suitable for high altitude loading chute.
Background
In the original design of the rapid quantitative loading station, a train track is arranged below a loading chute and is a channel of the loading station, the ground clearance of the loading chute is generally 8-10 m, and in order to guarantee the operation safety of the chute, the periphery of the chute is not shielded, so that the inspection and maintenance difficulty of the loading chute is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses when aiming at solving current loading chute and breaking down, the staff is because the high altitude and unable direct arrival fault location carries out the technical problem who overhauls. Therefore, the utility model provides an overhaul platform suitable for high altitude loading chute.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an overhaul platform suitable for high altitude loading chute, includes electrically controlled device and two vertical swivels, the swivels all include isometric and the fixed dabber and the rotatory axle sleeve of mutually supporting, two fixed dabber is fixed respectively in train track both sides and the diagonal angle direction of loading chute, the lower part of rotatory axle sleeve all is connected to the end that stretches out of push rod motor through articulated link mechanism, the upper portion average level of rotatory axle sleeve is provided with the platform bracing piece that can follow the motion of rotatory axle sleeve, two the platform bracing piece is isometric and is located same horizontal plane, platform bracing piece one end with rotatory axle sleeve fixed connection, two the free end of platform bracing piece is respectively towards opposite direction, the rotatory stroke both ends of platform bracing piece all be provided with the spacing complex non-maintenance position limit switch of platform bracing piece and maintenance position limit switch, non-maintenance position limit switch's position guarantee two platform bracing piece static back axis direction all with train track rail way The track directions are the same, the position of the maintenance position limit switch ensures that the axial direction of the two platform support rods is vertical to the train track direction after the two platform support rods are static and are relatively parallel and aligned, the two platform support rods support a plurality of cross support plates to form a temporary maintenance platform after rotating to the maintenance position and being aligned in parallel, and a crawling ladder for climbing up the maintenance platform is arranged near the rotating frame; the push rod motor is connected with a three-phase power supply, the electric control device comprises a first start-stop button for controlling the motor to rotate forwards, a second start-stop button for controlling the motor to rotate backwards, a first contactor for controlling the motor to rotate forwards and a second contactor for controlling the motor to rotate backwards, the first start-stop button and the second start-stop button both comprise normally open contacts and normally closed contacts, main contacts of the first contactor and the second contactor are connected between the push rod motor and the three-phase power supply, the normally open contact of the first start-stop button, the normally closed contact of the second contactor, a coil of the first contactor and the normally closed contact of the maintenance position limit switch are sequentially connected in series and connected between a live wire and change, and the normally open contact of the first contactor is connected to two ends of the normally; the second opens and stops button normally open contact, first start stop button normally closed contact, first contactor normally closed contact, second contactor coil and non-maintenance position limit switch normally closed contact looks series connection and is connected to between live wire and the change, second contactor normally open contact opens button normally open contact and first start stop button normally closed contact both ends to the second in parallel.
The utility model discloses a theory of operation suitable for high altitude loading chute overhauls platform: when the loading chute does not need to be overhauled, the platform support rods positioned on the rotating shaft sleeve rotate to the side walls on the two sides of the train track along with the rotating shaft sleeve, the axial directions of the two platform support rods are the same as the direction of the train track, the free end parts of the two platform support rods face different directions, and the positions of the two platform support rods are non-overhauling positions; when the loading chute needs to be overhauled, the two platform support rods rotate by 90 degrees and then the axes of the two platform support rods are perpendicular to the direction of the train track, the positions of the two platform support rods are overhauling positions at the moment, the two platform support rods rotate to the overhauling positions from the non-overhauling positions in a forward rotation mode, and the two platform support rods rotate to the non-overhauling positions in a reverse rotation mode; set up between two platform bracing pieces and form interim maintenance platform after crossing the backup pad, the staff just can work on interim maintenance platform, along with adjusting along with using, overhauls and the driving is not delayed mutually, when not needing, transfers it to train track both sides, and occupation space is not, and is very convenient. The electric control device comprises a main circuit and a control circuit, wherein a motor forward rotation control circuit is formed among a first start-stop button normally open contact, a second start-stop button normally closed contact, a second contactor normally closed contact, a first contactor coil, an overhaul position limit switch normally closed contact and a first contactor normally open contact; a push rod motor reversal control circuit is formed among the second start-stop button normally open contact, the first start-stop button normally closed contact, the first contactor normally closed contact, the second contactor coil, the non-overhaul position limit switch normally closed contact and the second contactor normally open contact; when a first start-stop device button normally open contact is pressed, the first start-stop device button normally open contact is closed, a push rod motor forward rotation control circuit is electrified, a first contactor coil is electrified, a first contactor main contact and the normally open contact are both closed, the push rod motor starts to rotate forward, two platform support rods rotate to an overhaul position from a non-overhaul position, when the platform support rods are in place, the two platform support rods contact respective overhaul position limit switches, the overhaul position limit switches are normally closed contacts are disconnected, the push rod motor forward rotation control circuit is disconnected, the first contactor coil is electrified, the first contactor normally open contact and the main contact are disconnected, and the push rod motor stops forward rotation; when the push rod motor needs to be reversed, a first start-stop button normally open contact is pressed to reset and restore the normally open state, then a second start-stop button normally open contact is pressed, the second start-stop button normally open contact is closed, a push rod motor reversal control circuit is electrified, a second contactor coil is electrified, a main contact and the normally open contact of a second contactor are both closed, the push rod motor starts to reverse, the two platform support rods rotate to a maintenance position from the maintenance position, after the platform support rods are in place, the two platform support rods all touch respective non-maintenance position limit switches, the non-maintenance position limit switches are disconnected, the push rod motor reversal control circuit is disconnected, the second contactor coil is electrified, the normally open contact and the main contact of the second contactor are disconnected, and the push rod motor stops reversing.
Furthermore, emergency stop buttons are connected between the normally closed contact of the maintenance position limit switch and the normally closed contact of the non-maintenance position limit switch and the zero line. When the emergency stop button is pressed, the control circuit is powered off, the operation can be stopped in time, and the loss is reduced to the maximum extent.
Furthermore, the electric control device also comprises a thermal relay, and a coil of the thermal relay is connected between the push rod motor and the main contacts of the first contactor and the second contactor in series; and the normally closed contact of the thermal relay is connected between the emergency stop button and the zero line in series. The thermal relay is an overload protection element of the push rod motor.
Furthermore, a circuit breaker and a fuse are connected in series between the three-phase power supply and the main contacts of the first contactor and the second contactor. The circuit breaker and the fuse are used for protecting a main circuit and a push rod motor.
Further, a platform guardrail is arranged on the platform supporting rod. The setting of platform guardrail is in order to prevent that the staff from the landing on overhauing the platform temporarily, has effectively ensured maintainer's personal safety.
The utility model has the advantages that: the utility model discloses the structure cooperation is ingenious, and electrically controlled device control is rigorous, when needs overhaul the utility model discloses can set up into interim maintenance platform, overhaul simultaneously the train can pass through, when not needing to overhaul, the platform can be accomodate to train track lateral wall on, saves space, has guaranteed near train track working face clean and tidy, personal safety when effectively having ensured maintainer high altitude construction, is favorable to coal mine safety production moreover.
Drawings
FIG. 1 is a structural schematic diagram of a platform elevation suitable for an overhaul platform of a chute for loading in high altitude.
Fig. 2 is a schematic top view of the platform of the maintenance platform suitable for the chute for loading vehicles at high altitude.
Fig. 3 is a schematic circuit diagram of an electric control device suitable for an overhaul platform of a chute for loading vehicles at high altitude.
In the figure: 1-a rotating frame; 2, loading a chute; 3-a platform support bar; 4-train track; 5, climbing a ladder; 6-platform guardrail; 7-across the support plate; SQ 1-maintenance position limit switch; SQ 2-non-inspection position limit switch; CE-first start stop button; SBF-a second start-stop button; KM 1-first contactor; KM 2-second contactor; STP-scram button; FR-thermal relay; QF-breaker; an FU-fuse; an L-fire line; the N-zero line.
Detailed Description
With reference to fig. 1 to 2, the maintenance platform suitable for the chute for loading vehicles at high altitude of the present invention will now be described.
An overhaul platform suitable for an overhead loading chute 2 is disclosed, as shown in figure 1, and comprises an electric control device and two vertical rotating frames 1, wherein each rotating frame 1 comprises a fixed mandrel and a rotating shaft sleeve which are equal in length and are mutually matched, the fixed mandrels are respectively fixed on two sides of a train track 4 and are in opposite angle directions of the loading chute 2, as shown in figure 2 in particular, the lower parts of the rotating shaft sleeves are connected to the extending ends of a push rod motor through a hinged connecting rod mechanism, platform support rods 3 capable of moving along with the rotating shaft sleeves are horizontally arranged on the upper parts of the rotating shaft sleeves, the platform support rods 3 are equal in length and are positioned in the same horizontal plane, one ends of the platform support rods 3 are fixedly connected with the rotating shaft sleeves, the free ends of the two platform support rods 3 respectively face opposite directions, overhaul position limit switches SQ1 and non-overhaul position limit switches SQ2 which are in limit fit with the platform support rods 3 are arranged, the position of a non-maintenance position limit switch SQ2 ensures that the axial direction of the two platform support rods 3 after being static is the same as the direction of the train track 4, the position of a maintenance position limit switch SQ1 ensures that the axial direction of the two platform support rods 3 after being static is vertical to the direction of the train track 4 and the two platform support rods 3 are relatively parallel and aligned, the two platform support rods 3 support a plurality of cross support plates 7 to form a temporary maintenance platform after rotating to the maintenance position and being aligned in parallel, and a crawling ladder 5 for climbing up the maintenance platform is arranged near the rotating frame 1; as shown in fig. 3, the push rod motor is connected to a three-phase power supply, the electric control device includes a first start-stop button CE for controlling the motor to rotate forward, a second start-stop button SBF for controlling the motor to rotate backward, a first contactor KM1 for controlling the motor to rotate forward, and a second contactor KM2 for controlling the motor to rotate backward, the first start-stop button and the second start-stop button respectively comprise a normally open contact and a normally closed contact, main contacts of a first contactor and a second contactor are connected between the push rod motor and the three-phase power supply, the normally open contact of the first start-stop button CE, the normally closed contact of the second start-stop button SBF, the normally closed contact of the second contactor KM2, the coil of the first contactor KM1 and the normally closed contact of the overhaul position limit switch SQ1 are connected in series in sequence and connected between the live wire L and the change, the normally open contact of the first contactor KM1 is connected to the two ends of the normally open contact of the first start-stop button CE and the normally closed contact of the second start-stop button SBF in parallel; the second opens and stops button SBF normally open contact, first start-stop button CE normally closed contact, first contactor KM1 normally closed contact, second contactor KM2 coil and non-overhaul position limit switch SQ2 normally closed contact and be connected in series between live wire L and the change, second contactor KM2 normally open contact is parallelly connected to second start-stop button SBF normally open contact and first start-stop button CE normally closed contact both ends. The cross support plate 7 is generally a wood plate, and is light and strong in bearing capacity.
The utility model discloses a theory of operation suitable for high altitude loading chute 2's maintenance platform: when the loading chute 2 does not need to be overhauled, the platform support rods 3 positioned on the rotating shaft sleeve rotate to two sides of the train track 4 along with the rotating shaft sleeve, the axial directions of the two platform support rods 3 are the same as the direction of the train track 4, the free end parts of the two platform support rods 3 face different directions, and the position of the two platform support rods 3 is a non-overhauling position; when the loading chute 2 needs to be overhauled, the two platform support rods 3 rotate 90 degrees and then the axes of the two platform support rods are perpendicular to the direction of the train track 4, the positions of the two platform support rods 3 are overhauling positions, the rotation from the non-overhauling position to the overhauling position is positive rotation, and the rotation from the overhauling position to the non-overhauling position is negative rotation; set up between two platform bracing pieces 3 and span and form interim maintenance platform behind backup pad 7, the staff just can work on interim maintenance platform, along with adjusting along with using, overhauls and the driving is not delayed mutually, when not needing, transfers it to train track 4 both sides, and occupation space is not, and is very convenient. The electric control device comprises a main circuit and a control circuit, wherein a motor forward rotation control circuit is formed among a first start-stop button CE normally open contact, a second start-stop button SBF normally closed contact, a second contactor KM2 normally closed contact, a first contactor KM1 coil, an overhaul position limit switch SQ1 normally closed contact and a first contactor KM1 normally open contact; a push rod motor reversal control circuit is formed among the second start-stop button SBF normally-open contact, the first start-stop button CE normally-closed contact, the first contactor KM1 normally-closed contact, the second contactor KM2 coil, the non-overhaul position limit switch SQ2 normally-closed contact and the second contactor KM2 normally-open contact; when a first start-stop button normally open contact is pressed, the first start-stop button normally open contact is closed, a push rod motor forward rotation control circuit is electrified, a first contactor KM1 coil is electrified, a first contactor KM1 main contact and a normally open contact are both closed, the push rod motor starts to rotate forward, two platform support rods 3 rotate to a maintenance position from a non-maintenance position, when the platform support rods 3 are in place, the two platform support rods 3 are in contact with respective maintenance position limit switches SQ1, the maintenance position limit switch SQ1 normally closed contact is disconnected, the push rod motor forward rotation control circuit is disconnected, the first contactor KM1 coil is electrified, the first contactor KM1 normally open contact and the main contact are disconnected, and the push rod motor stops forward rotation; when the push rod motor needs to rotate reversely, the normally open contact of the first start-stop button CE is pressed to reset to the normally open state, then when a second start-stop button SBF normally open contact is pressed, the second start-stop button SBF normally open contact is closed, a push rod motor reversal control circuit is electrified, the coil of the second contactor KM2 is electrified, the main contact and the normally open contact of the second contactor KM2 are both closed, the push rod motor starts to rotate reversely, the two platform supporting rods 3 rotate to the maintenance position from the maintenance position, when the platform supporting rods 3 are in place, the two platform supporting rods 3 touch the non-maintenance position limit switches SQ2 respectively, the normally closed contact of the non-maintenance position limit switch SQ2 is disconnected, the reverse rotation control circuit of the push rod motor is disconnected, the coil of the second contactor KM2 is de-energized, the normally open contact of the second contactor KM2 is disconnected with the main contact, and the push rod motor stops rotating reversely.
Further, conduct the embodiment of maintenance platform suitable for high altitude loading chute 2, overhaul position limit switch SQ1 normally closed contact and non-overhaul position limit switch SQ2 normally closed contact and zero line N between all be connected with scram button STP. And when the emergency stop button STP is pressed, the control circuit is powered off, the operation can be stopped in time, and the loss is reduced to the maximum extent.
Further, as a specific embodiment of the maintenance platform suitable for the high-altitude loading chute 2 of the present invention, the electric control device further comprises a thermal relay FR, and a coil of the thermal relay FR is connected in series between the push rod motor and the main contacts of the first and second contactors; and the normally closed contact of the thermal relay FR is connected in series between the emergency stop button STP and the zero line N. The thermal relay FR is an overload protection element of the push rod motor.
Further, conduct the embodiment of the maintenance platform suitable for high altitude loading chute 2, it has circuit breaker QF and fuse FU to establish ties between the main contact of three phase current and first, two contactors. The circuit breaker QF and the fuse FU are used for protecting a main circuit and a push rod motor.
Further, conduct the specific implementation mode of maintenance platform suitable for high altitude loading chute 2, be provided with platform guardrail 6 on the platform bracing piece 3. The platform guardrail 6 is arranged to prevent the worker from sliding off the temporary maintenance platform, so that the personal safety of the maintenance worker is effectively guaranteed.
While the invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides an overhaul platform suitable for high altitude loading chute which characterized in that: the device comprises an electric control device and two vertical rotating frames, wherein each rotating frame comprises a fixed mandrel and a rotating shaft sleeve which are equal in length and are mutually matched, the two fixed mandrels are respectively fixed on two sides of a train track and are used for installing the diagonal directions of a chute, the lower part of each rotating shaft sleeve is connected to the extending end of a push rod motor through a hinged connecting rod mechanism, the upper part of each rotating shaft sleeve is horizontally provided with a platform supporting rod which can move along with the rotating shaft sleeve, the two platform supporting rods are equal in length and are positioned in the same horizontal plane, one end of each platform supporting rod is fixedly connected with the corresponding rotating shaft sleeve, the free ends of the two platform supporting rods respectively face to opposite directions, the two ends of the rotating stroke of each platform supporting rod are respectively provided with a non-maintenance position limit switch and a maintenance position limit switch which are in limit matching with the platform supporting rods, and the axial directions, the position of the maintenance position limit switch ensures that the axial direction of the two platform supporting rods is perpendicular to the direction of the train track after the two platform supporting rods are static and are relatively parallel and aligned, the two platform supporting rods support a plurality of cross supporting plates to form a maintenance platform after rotating to the maintenance position and are aligned in parallel, and a crawling ladder for climbing up the maintenance platform is arranged near the rotating frame; the push rod motor is connected with a three-phase power supply, the electric control device comprises a first start-stop button for controlling the motor to rotate forwards, a second start-stop button for controlling the motor to rotate backwards, a first contactor for controlling the motor to rotate forwards and a second contactor for controlling the motor to rotate backwards, the first start-stop button and the second start-stop button both comprise normally open contacts and normally closed contacts, main contacts of the first contactor and the second contactor are connected between the push rod motor and the three-phase power supply, the normally open contact of the first start-stop button, the normally closed contact of the second contactor, a coil of the first contactor and the normally closed contact of the maintenance position limit switch are sequentially connected in series and connected between a live wire and change, and the normally open contact of the first contactor is connected to two ends of the normally; the second opens and stops button normally open contact, first start stop button normally closed contact, first contactor normally closed contact, second contactor coil and non-maintenance position limit switch normally closed contact looks series connection and is connected to between live wire and the change, second contactor normally open contact opens button normally open contact and first start stop button normally closed contact both ends to the second in parallel.
2. The maintenance platform suitable for the chute of the high altitude loading according to claim 1, characterized in that: and emergency stop buttons are connected between the normally closed contact of the maintenance position limit switch and the normally closed contact of the non-maintenance position limit switch and the zero line.
3. The maintenance platform suitable for the chute of the high altitude loading according to claim 2, characterized in that: the electric control device also comprises a thermal relay, and a coil of the thermal relay is connected between the push rod motor and the main contacts of the first contactor and the second contactor in series; and the normally closed contact of the thermal relay is connected between the emergency stop button and the zero line in series.
4. An inspection platform suitable for use with a high altitude loading chute as claimed in claim 1, 2 or 3 wherein: and a circuit breaker and a fuse are connected in series between the three-phase power supply and the main contacts of the first contactor and the second contactor.
5. The maintenance platform suitable for the chute of the high altitude loading according to claim 4, characterized in that: platform guardrails are arranged on the platform supporting rods.
6. The maintenance platform suitable for the chute of the high altitude loading according to claim 5, characterized in that: the platform support rod is made of channel steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921608459.4U CN210824538U (en) | 2019-09-26 | 2019-09-26 | Maintenance platform suitable for chute of high altitude loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921608459.4U CN210824538U (en) | 2019-09-26 | 2019-09-26 | Maintenance platform suitable for chute of high altitude loading |
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| Publication Number | Publication Date |
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| CN210824538U true CN210824538U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921608459.4U Active CN210824538U (en) | 2019-09-26 | 2019-09-26 | Maintenance platform suitable for chute of high altitude loading |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697316A (en) * | 2019-09-26 | 2020-01-17 | 大同煤矿集团有限责任公司 | Maintenance platform suitable for chute of high altitude loading |
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2019
- 2019-09-26 CN CN201921608459.4U patent/CN210824538U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697316A (en) * | 2019-09-26 | 2020-01-17 | 大同煤矿集团有限责任公司 | Maintenance platform suitable for chute of high altitude loading |
| CN110697316B (en) * | 2019-09-26 | 2020-12-15 | 大同煤矿集团有限责任公司 | Maintenance platform suitable for chute of high altitude loading |
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