CN214006489U

CN214006489U - Maintenance platform with overload protection mechanism

Info

Publication number: CN214006489U
Application number: CN202022038633.5U
Authority: CN
Inventors: 章兴昌
Original assignee: Changzhou Changjiang Electric Machinery Factory Co ltd
Current assignee: Changzhou Changjiang Electric Machinery Factory Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-08-20
Anticipated expiration: 2030-09-16

Abstract

The utility model provides an overhaul platform with overload protection mechanism, include: the hanging bracket is controlled by the driving mechanism to move in the hearth; the maintenance chamber is controlled by the displacement of the driving piece relative to the hanging frame, so that the maintenance chamber is provided with a first position located in a range right above the hanging frame and a second position close to the inner wall direction of the hearth towards the outer side of the hanging frame; detection device, including pressure sensor, pressure sensor corresponds locates overhauls the room below, and pressure sensor's sense terminal is conflicted and is overhauld the room, actuating mechanism and detection device communication connection. If the detection device detects that the weight of the overhaul room exceeds the preset threshold value, a stop signal is sent to the driving mechanism, so that the driving mechanism cannot drive the overhaul platform to descend into the hearth. The maintainer need not to remove, drives the maintenance room by the driving piece and is close to the furnace inner wall and removes, and is more steady, is difficult for taking place detection device and judges overweight condition by mistake.

Description

Maintenance platform with overload protection mechanism

Technical Field

The utility model provides an overhaul platform with overload protection mechanism

Background

The boiler furnace overhauls the platform is high-efficient, multi-functional high altitude maintenance construction operation machines in the furnace, and it has replaced traditional scaffold frame, through the maintainer operation, makes the platform adjust required position construction operation. The furnace hearth furnace has the characteristics of reasonable structure, convenience in use, safety, reliability, high working efficiency, light labor intensity, short overhaul period and the like, is a shaped product widely applied in the existing thermal power industry, can be used for overhauling each part in a furnace hearth, and is already put into use in domestic large and medium power stations.

Most boiler furnace overhauls platform all is the platform structure frame that the I-shaped aluminium alloy that adopts the 2A12 material formed through the assembly of steel connecting piece, consequently, the platform that adopts this kind of structure and the springboard of laying all around, and the dead weight just can be up to 4 tons more. Therefore, for production enterprises, how to reduce the self weight of the boiler furnace overhaul platform is an important research direction for the development of the existing furnace overhaul platform.

In order to reduce the overall weight of the maintenance platform, under the condition of considering the cost, a cheaper light-weight material aluminum alloy connecting piece is selected to replace a steel connecting piece, which is a technical means easily thought by technicians in the field. In order to ensure that the maintenance platform can smoothly lift in the hearth, a certain distance is usually arranged between the maintenance platform and the inner wall of the hearth. The in-process that the maintainer was carrying out all-round maintenance if can be close to the furnace inner wall removal in order to be close to the inspection. If the maintenance platform is just in an overload state, the maintenance platform is easy to incline.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: because of having a determining deviation between maintenance platform and the furnace inner wall, lead to the relatively dangerous technical problem when maintainer is close to the inspection of furnace inner wall.

The utility model provides a technical scheme that its technical problem adopted is: an overhaul platform with an overload protection mechanism, comprising:

the hanging bracket is controlled by the driving mechanism to move in the hearth;

the maintenance room is controlled by the displacement of the driving piece relative to the hanging frame, so that the maintenance room is provided with a first position located in a range right above the hanging frame and a second position close to the inner wall direction of the hearth towards the outer side of the hanging frame;

detection device, including pressure sensor, pressure sensor corresponds locates overhaul room below, pressure sensor's sense terminal is contradicted overhaul the room, actuating mechanism with detection device communication connection.

Further comprising:

the transmission frame is detachably connected to the hanging frame, and the maintenance room is connected to the transmission frame in a sliding mode;

the driving piece is arranged on the transmission frame, the output end of the driving piece faces the inner wall of the hearth, and the output end of the driving piece is connected with the overhaul chamber.

The transmission frame includes:

the mounting panel is located on the driving frame, the driving piece is located the mounting panel orientation belongs to the one side of overhauing the room, the mounting panel dorsad one side of overhauing the room with be equipped with first strengthening rib between the driving frame.

The mounting panel with mutually perpendicular between the driving frame, the driving piece is cylinder and/or push rod motor.

The transmission frame includes:

the transmission base plate, overhaul room sliding connection be in on the transmission base plate, be equipped with on the transmission base plate and be used for the adaptation the second guide rail of overhaul room.

The detection means act on the second guide rail.

Further comprising:

the first support rod is provided with a first state of being accommodated into the hanging bracket and a second state of being extended out of the hanging bracket, and the first support rod is controlled by the detection device.

The first support bar includes:

and the first supporting base block is arranged at the supporting end of the first supporting rod, and when the first supporting rod is in a supporting state, the first supporting base block extends towards the inner wall of the hearth relative to the hanging bracket and abuts against the inner wall of the hearth.

The first support base block includes:

the first elastic layer is arranged on the first supporting base blocks, and when the first supporting rods are in a supporting state, the first elastic layer is clamped between the inner wall of the hearth and the first supporting base blocks.

The elastic layer protrudes outward with respect to the first support base.

The utility model has the advantages that:

1. the utility model provides an overhaul platform with overload protection mechanism overhauls the platform when getting into furnace inside, and the maintainer needs advance to go into the maintenance room. If the detection device detects that the weight of the overhaul room exceeds the preset threshold value, a stop signal is sent to the driving mechanism, so that the driving mechanism cannot drive the overhaul platform to descend into the hearth. And simultaneously, an alarm is given out to prompt the maintainers to reduce the number of the overhauls or reduce the number of extra overhaul tools to be carried. When the maintenance platform is positioned in the hearth, the detection device is easy to misjudge that the maintenance room is overweight due to the movement of the maintenance personnel. In this scheme, the maintenance personnel need not to move, and the driving piece drives the maintenance room to move close to the inner wall of the furnace, so that the maintenance room is more stable, and the situation that the detection device misjudges overweight is not easy to occur.

2. The utility model provides an overhaul platform with an overload protection mechanism, which also comprises a transmission frame, wherein the transmission frame is detachably connected on the hanging frame, and the overhaul room is slidably connected on the transmission frame; the driving piece is arranged on the transmission frame, the output end of the driving piece faces the inner wall of the hearth, and the output end of the driving piece is connected with the overhaul chamber. The drive member itself is communicatively connected to the detection device. When the overhaul chamber is detected to be in an overweight state, the driving piece is controlled by the detection device and cannot push the overhaul chamber out towards the inner wall direction of the hearth. If the maintenance room is in an overweight state and is already in a state of being pushed to the outer side, the driving piece can drive the maintenance room to retract to the upper part of the hanging bracket.

3. When the overhaul platform has not fallen into the furnace, if the overhaul room is overweight, first bracing piece is controlled by the overhaul device and stretches out this moment, and the staff sees that first bracing piece stretches out, can know that the overhaul room probably has overweight condition. When overhauing the platform and being located furnace, if the maintenance room is overweight, then first bracing piece stretches out, perhaps first bracing piece further stretches out on the basis that has stretched out, guarantees to push up tight furnace inner wall on the one hand. On the other hand, before the abnormal weight condition is eliminated, the first support rod keeps abutting against the inner wall of the hearth, so that the mechanical strength of the hanger at the moment can be ensured, and the auxiliary hanger shares overweight. It also alerts the service personnel that a portion of the tool should be discarded to relieve the overweight condition.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a perspective view showing the service platform in an outwardly sliding extended condition;

fig. 2 is a schematic view showing an opened state of the shutter;

FIG. 3 is a top view showing the structure of the service platform;

fig. 4 is a schematic view showing a structure of the first support block.

In the figure: 1. a hanger; 11. a transmission substrate; 111. a second guide rail; 12. a transmission frame; 121. a drive member; 122. mounting a plate; 123. a first reinforcing rib; 124. a counterweight platform; 125. a counterweight load; 126. an installation part; 13. a motor; 14. weight-reducing through holes; 15. a first guide rail; 2. an overhaul room; 21. a movable door; 22. A door lock assembly; 23. a support block; 24. a safety bar; 25. an illuminating lamp; 3. a first slide bar; 31. a first slider; 32. a first elastic member; 33. a first guide post; 34. a buffer seat; 35. a support wheel; 4. a sling; 41. a hanging seat; 42. a first cover body; 43. a second cover body; 44. fixing the rod; 45. a abdication through hole; 46. A boss portion; 47. a first bolt; 48. a first bolt hole; 49. a limiting column; 5. a first support bar; 51. A first support base block; 52. a first elastic layer; 6. a guide wheel; 61. a main body frame; 62. a drive section; 63. A second supporting base block; 64. a second elastic layer; 65. a link section; 66. a main shaft; 67. a reinforcing bar; 68. And a second reinforcing rib.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

The utility model provides an overhaul platform with overload protection mechanism, include: the hanging bracket 1 is controlled by the driving mechanism to move in the hearth; the maintenance room 2 is slidably connected to the hanger 1, and the maintenance room 2 is controlled by the driving element 121 to displace relative to the hanger 1, so that the maintenance room 2 has a first position located in a range right above the hanger 1 and a second position close to the inner wall of the hearth towards the outer side of the hanger 1; detection device, including pressure sensor, pressure sensor corresponds locates overhaul room 2 below, pressure sensor's sense terminal is contradicted overhaul room 2, actuating mechanism with detection device communication connection. When the maintenance platform enters the hearth, the maintenance personnel need to enter the maintenance room 2 first. If the weight of the overhaul chamber 2 exceeds the preset threshold value at the moment, the detection device can send a stop signal to the driving mechanism, so that the driving mechanism cannot drive the overhaul platform to descend into the hearth. And simultaneously, an alarm is given out to prompt the maintainers to reduce the number of the overhauls or reduce the number of extra overhaul tools to be carried. When the maintenance platform is positioned in the hearth, the movement in the maintainers easily causes the detection device to misjudge that the maintenance room 2 is overweight. In this scheme, the maintenance personnel need not to move, and the maintenance room 2 is driven by the driving piece 121 to be close to the inner wall of the hearth and move, so that the detection device is more stable and the overweight condition is not easy to misjudge.

The maintenance platform of this embodiment still includes: the transmission frame 12 is detachably connected to the hanging bracket 1, and the maintenance room 2 is slidably connected to the transmission frame 12; drive piece 121 locates on the driving frame 12, the output of drive piece 121 orientation the inner wall setting of furnace, the output of drive piece 121 is connected overhaul room 2. The actuator 121 itself is communicatively connected to the detection device. When the overhaul chamber 2 is detected to be in an overweight state, the driving piece 121 is controlled by the detection device and cannot push the overhaul chamber 2 out towards the inner wall of the hearth. If the maintenance room 2 is pushed to the outside in the overweight condition, the driving member 121 drives the maintenance room 2 to retract to the upper part of the hanging bracket 1.

Wherein, the driving frame 12 includes the mounting panel 122, locates on the driving frame 12, the driving piece 121 is located the mounting panel 122 is towards the one side that belongs to maintenance room 2, the mounting panel 122 dorsad maintenance room 2 one side with be equipped with first strengthening rib 123 between the driving frame 12. The first reinforcing ribs 123 can improve the mechanical strength of the mounting plate 122 itself.

In this embodiment, the mounting plate 122 is perpendicular to the transmission frame 12, and the driving member 121 is an air cylinder and/or a push rod motor 13. As an alternative embodiment, the mounting plate 122 is disposed at 60 ° to the drive frame 12. As another alternative, the mounting plate 122 is inclined away from the service compartment 2, and the angle between the mounting plate 122 and the hanger 1 is acute or obtuse.

Wherein the transmission frame 12 includes: the transmission base plate 11, overhaul room 2 sliding connection be in on the transmission base plate 11, be equipped with on the transmission base plate 11 and be used for the adaptation overhaul room 2's second guide rail 111. Said detection means act on said second guide rail 111.

In this embodiment, the second guide rail 111 provides a sliding motion path for the service room 2, and the weight of the service room 2 can be continuously monitored during the sliding motion of the service room 2.

The maintenance platform of this embodiment further includes a first support rod 5, the first support rod 5 has a first state of being accommodated in the hanger 1 and a second state of being extended out of the hanger 1, and the first support rod 5 is controlled by the detection device. When the overhaul platform has not fallen into the furnace, if overhaul room 2 is overweight, first bracing piece 5 is controlled by the maintenance device and stretches out this moment, and the staff sees that first bracing piece 5 stretches out, can know that overhaul room 2 probably has overweight condition. When overhauing the platform and being located furnace, if overhaul room 2 is overweight, then first bracing piece 5 stretches out, perhaps first bracing piece 5 further stretches out on the basis that has stretched out, guarantees to push up tight furnace inner wall on the one hand. On the other hand, before the abnormal weight condition is eliminated, the first support rod 5 keeps abutting against the inner wall of the hearth, so that the mechanical strength of the hanger 1 at the moment can be ensured, and the auxiliary hanger 1 shares overweight. It also alerts the service personnel that a portion of the tool should be discarded to relieve the overweight condition.

The first supporting rod 5 comprises a first supporting base block which is arranged at a supporting end of the first supporting rod 5, and when the first supporting rod 5 is in a supporting state, the first supporting base block extends towards the inner wall of the hearth relative to the hanging bracket 1 and abuts against the inner wall of the hearth.

The first support base block of this embodiment includes a first elastic layer 52, and is disposed on the first support base block, and when the first support rod 5 is in the support state, the first elastic layer 52 is sandwiched between the inner wall of the furnace and the first support base block. The elastic layer protrudes outward with respect to the first support base 51. The surface of the first elastic layer 52 facing the inner wall of the hearth is a supporting surface, and the supporting surface is in a circular arc shape protruding outwards.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an overhaul platform with overload protection mechanism which characterized in that: the method comprises the following steps:

the hanging bracket (1) is controlled by the driving mechanism to move in the hearth;

the maintenance room (2) is connected to the hanging bracket (1) in a sliding mode, the maintenance room (2) is controlled by a driving piece (121) to move relative to the hanging bracket (1), and the maintenance room (2) is provided with a first position located in a range right above the hanging bracket (1) and a second position close to the inner wall direction of the hearth towards the outer side of the hanging bracket (1);

detection device, including pressure sensor, pressure sensor corresponds locates overhaul room (2) below, pressure sensor's sense terminal is contradicted overhaul room (2), actuating mechanism with detection device communication connection.

2. The service platform with the overload protection mechanism of claim 1, wherein: further comprising:

the transmission frame (12), the transmission frame (12) is detachably connected to the hanging bracket (1), and the maintenance room (2) is connected to the transmission frame (12) in a sliding mode;

drive piece (121), locate on transmission frame (12), the output orientation of drive piece (121) the inner wall setting of furnace, the output of drive piece (121) is connected overhaul room (2).

3. The service platform with the overload protection mechanism of claim 2, wherein: the transmission frame (12) comprises:

mounting panel (122), locate on driving frame (12), driving piece (121) are located mounting panel (122) are towards the one side that belongs to maintenance room (2), mounting panel (122) dorsad one side of maintenance room (2) with be equipped with first strengthening rib (123) between driving frame (12).

4. The service platform with the overload protection mechanism of claim 3, wherein: the mounting plate (122) and the transmission frame (12) are perpendicular to each other, and the driving piece is an air cylinder and/or a push rod motor.

5. The service platform with the overload protection mechanism according to any one of claims 2 to 4, wherein: the transmission frame (12) comprises:

drive base plate (11), overhaul room (2) sliding connection be in on the drive base plate (11), be equipped with on drive base plate (11) and be used for the adaptation second guide rail (111) of overhaul room.

6. The service platform with the overload protection mechanism of claim 5, wherein: the detection means act on the second guide rail (111).

7. The service platform with the overload protection mechanism of claim 1, wherein: further comprising:

a first support bar (5), the first support bar (5) having a first state of being stowed into the cradle (1) and a second state of being deployed out of the cradle (1), the first support bar (5) being controlled by the detection device.

8. The service platform with the overload protection mechanism of claim 7, wherein: the first support bar (5) comprises:

the first supporting base block (51) is arranged at the supporting end of the first supporting rod (5), and when the first supporting rod (5) is in a supporting state, the first supporting base block (51) extends towards the inner wall of the hearth relative to the hanging bracket (1) and abuts against the inner wall of the hearth.

9. The service platform with the overload protection mechanism of claim 8, wherein: the first support base block (51) includes:

and the first elastic layer (52) is arranged on the first supporting base block (51), and when the first supporting rod (5) is in a supporting state, the first elastic layer (52) is clamped between the inner wall of the hearth and the first supporting base block (51).

10. The service platform with the overload protection mechanism of claim 9, wherein: the elastic layer (52) protrudes outward with respect to the first support base (51).