Automatic separation structure after motor fault of air pre-heater

Abstract

The utility model relates to the technical field of air pre-heaters, and discloses an automatic disengaging structure after air pre-heater motor fault, which comprises an electric slide rail component, the electric slide rail component comprises a slide rail body and a bottom plate arranged at the lower end of the slide rail body, the surface of the bottom plate is provided with a mounting hole, the slide rail body is connected with a slide block in a sliding manner, and the slide block is provided with a through hole. A connecting frame is fixedly installed at the upper end of the sliding block, limiting structures are arranged on the left side and the right side of the connecting frame, a motor is arranged on the connecting frame, a lubricating piece is further arranged on the outer side of the sliding block, the output end of the electric sliding rail component is connected with a permanent magnet coupler, a speed reducer is arranged on one side of the permanent magnet coupler, and the motor and the speed reducer are connected in a separable mode. In normal load operation, the motor end and the speed reducer end are in non-contact torque transmission, the function that the motor and the speed reducer are separated in the operation of the air preheater can be achieved, the electric sliding rail component drives the motor to move, the electric sliding rail component can automatically quit from being connected with the speed reducer, and it is avoided that motor faults affect rotation of the preheater.

Description

TECHNICAL FIELD

[0001] The utility model relates to air preheater technical field, concretely is a kind of air preheater motor failure after automatic disengagement structure. BACKGROUND

[0002] Air preheater is the flue gas in the tail of boiler passes through the heat sink inside and preheats the air before entering the boiler to certain temperature, is a kind of heating surface for improving the heat exchange performance of boiler, reduces the equipment of energy consumption, the application of air preheater in boiler is mostly three-division storehouse type, with fire alarm system, gap adjustment system and frequency conversion control system.

[0003] Air preheater is prone to motor overcurrent, large vibration and other faults due to bearing wear and overheating during long-period operation, and the motor is locked when serious, and the traditional connection mode of motor and speed reducer is bolted through type, which will cause the preheater to stop rotating and the boiler to stop.

[0004] Therefore, we propose an air preheater motor failure after automatic disengagement structure to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing an air preheater motor failure after automatic disengagement structure to solve the problem of air preheater long-term operation after motor failure.

[0006] To achieve the above object, the utility model provides the following technical scheme: an air preheater motor failure after automatic disengagement structure, including electric slide rail component, the electric slide rail component includes slide rail body and the bottom plate of setting in the lower end of slide rail body, the surface of bottom plate is equipped with mounting hole, mounting hole and bolt cooperation can fix the position of bottom plate, slide rail body is connected with slider on the slide, the upper end of slider is fixedly installed with the link frame, the left and right sides of link frame are equipped with limit structure, the link frame is equipped with motor, and the limit structure is used for clamping the motor, the outside of slider is further equipped with lubricating part, lubricating part is used for injecting lubricating oil between slider and slide rail body, and lubrication can be carried out, the output end of electric slide rail component is connected with permanent magnet coupling, one side of permanent magnet coupling is equipped with speed reducer, and the motor and speed reducer are connected using permanent magnet coupling, the electric slide rail component can drive the motor to move, so that the electric slide rail component can exit the connection with speed reducer, and the motor failure can be avoided to affect the rotation of preheater.

[0007] Preferably, the lower end of the motor is provided with a motor base, and the lower end of the motor base is fixedly installed with a positioning block, and the motor base is used to support the motor.

[0008] Preferably, the slide rail body and the slide block are provided with two groups, and the two groups of the slide rail body and the slide block are symmetrically distributed about the center line of the motor.

[0009] Preferably, the surface of the adapter frame is provided with a positioning groove matched with the positioning block, and the positioning groove is used for accommodating the positioning block.

[0010] Preferably, the limiting structure comprises a fixed plate arranged at the upper end of the adapter frame and a sleeve block arranged outside the fixed plate, a knob is arranged outside the sleeve block, a threaded column is arranged on the side of the knob close to the sleeve block, the threaded column is threadedly connected in the sleeve block, and a clamping plate is connected to one end of the threaded column.

[0011] Preferably, the lubricating member comprises an oil inlet pipe penetrating the outer wall of the slide block and an inner cavity formed in the slide block, a plugging block is arranged outside the oil inlet pipe, and flow holes are uniformly formed in the side wall of the flow hole and used for the outflow of lubricating oil.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The motor, the electric slide rail component, the permanent magnet coupling and the speed reducer are arranged, the motor and the speed reducer adopt a separable connection mode, the traditional bolt connection of the coupling connection mode is changed into the permanent magnet coupling connection, the motor and the speed reducer are in non-contact torque transmission in normal load operation, the motor and the speed reducer can be separated in the operation of the air preheater, the electric slide rail component can be used to drive the motor to move, the electric slide rail component can automatically exit the connection with the speed reducer, the motor failure can be avoided to affect the rotation of the preheater, the reliable operation of the air preheater can be ensured, and the normal operation of the thermal power generator set is met.

[0014] 2. The lubricating member is arranged, the slide rail body and the slide block can be lubricated, wear can be effectively reduced, and the overall service life of the electric slide rail component is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a motor structure schematic view of the utility model;

[0017] Figure 3 It is a three-dimensional structure schematic view of the automatic disengagement component of the utility model;

[0018] Figure 4 It is a three-dimensional structure schematic view of the limiting structure of the utility model;

[0019] Figure 5 It is the lubricating member structure schematic view of the utility model.

[0020] In the drawing: 1, motor; 11, motor base; 12, positioning block; 2, electric sliding rail component; 21, sliding rail body; 22, bottom plate; 23, mounting hole; 24, sliding block; 25, link frame; 251, positioning groove; 26, limiting structure; 261, fixed plate; 262, sleeve block; 263, knob; 264, threaded column; 265, clamping plate; 27, lubricating member; 271, oil inlet pipe; 272, plugging block; 273, inner cavity; 274, flow hole; 3, permanent magnet coupling; 4, speed reducer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Embodiment one: please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a kind of air preheater motor failure automatic disengagement structure, including electric sliding rail component 2, electric sliding rail component 2 includes sliding rail body 21 and the bottom plate 22 of the lower end of sliding rail body 21, mounting hole 23 is set on the surface of bottom plate 22, mounting hole 23 and bolt cooperation can be fixed to the position of bottom plate 22, sliding rail body 21 is slidably connected with sliding block 24, the upper end of sliding block 24 is fixedly installed with link frame 25, the left and right sides of link frame 25 are provided with limiting structure 26, link frame 25 is provided with motor 1, limiting structure 26 is used for limiting clamping motor 1, the outside of sliding block 24 is also provided with lubricating member 27, lubricating member 27 is used to inject lubricating oil between sliding block 24 and sliding rail body 21, can be lubricated, the output end of electric sliding rail component 2 is connected with permanent magnet coupling 3, one side of permanent magnet coupling 3 is provided with speed reducer 4, motor 1 and speed reducer 4 are connected using permanent magnet coupling 3, motor 1 and speed reducer 4 are non-contact type torque transmission in normal load operation, can realize motor 1 and speed reducer 4 separation function in air preheater operation, using electric sliding rail component 2 can drive motor 1 to move, when motor 1 fails, electric sliding rail component 2 can be automatically exited and connected with speed reducer 4, can avoid that motor 1 failure influences preheater rotation.

[0023] The lower end of the motor 1 is provided with a motor base 11, and the lower end of the motor base 11 is fixedly provided with a positioning block 12, and the motor base 11 is used for supporting the motor 1.

[0024] The slide rail body 21 and the sliding block 24 are both provided with two groups, and the two groups of the slide rail body 21 and the sliding block 24 are symmetrically distributed about the center line of the motor 1.

[0025] The surface of the adapter frame 25 is provided with a positioning groove 251, the positioning groove 251 is matched with the positioning block 12, and the positioning groove 251 is used for accommodating the positioning block 12.

[0026] The limiting structure 26 includes a fixed plate 261 provided on the upper end of the adapter frame 25 and a sleeve block 262 provided on the outer side of the fixed plate 261, the outer side of the sleeve block 262 is provided with a knob 263, one side of the knob 263 close to the sleeve block 262 is provided with a threaded column 264, the threaded column 264 is threadedly connected in the sleeve block 262, one end of the threaded column 264 is connected with a clamping plate 265, when the knob 263 is rotated, the threaded column 264 can be rotated, the clamping plate 265 can be moved towards the motor 1, and the motor 1 can be clamped and limited.

[0027] In the embodiment: the motor 1 and the speed reducer 4 adopt a separable connection mode, the traditional through bolt connection of the shaft coupling connection mode is changed to the permanent magnet coupling 3 connection, in the normal load operation, the motor 1 and the speed reducer 4 are in non-contact torque transmission, the motor 1 and the speed reducer 4 can be separated in the operation of the air preheater, then the motor 1 and the motor base 11 are placed on the adapter frame 25, and the positioning is realized by means of the positioning groove 251 and the positioning block 12, then the knob 263 is rotated, the threaded column 264 can be rotated, the clamping plate 265 can be moved towards the motor 1, and the motor 1 can be clamped and limited, when the motor 1 fails, the motor 1 is moved by the electric slide rail component 2, the electric slide rail component 2 can automatically exit the connection with the speed reducer 4, the motor 1 failure can avoid affecting the rotation of the preheater, the reliable operation of the air preheater can be ensured, and the normal operation of the thermal power generator set can be met.

[0028] Embodiment two: the embodiment is improved on the basis of embodiment one, and specificly, please refer to Figure 5 The lubricating member 27 includes an oil inlet pipe 271 penetrating the outer wall of the sliding block 24 and an inner cavity 273 formed in the sliding block 24, the outer side of the oil inlet pipe 271 is provided with a plugging block 272, and flow holes 274 are uniformly formed in the side wall of the flow hole 274 and used for the flow of lubricating oil. The lubricating oil flowing out of the flow hole 274 can drop on the slide rail body 21, and the sliding block 24 and the slide rail body 21 can be lubricated.

[0029] In the embodiment, when the electric sliding rail component 2 needs to be lubricated, the blocking block 272 is opened, lubricating oil is injected into the inner cavity 273 from the oil inlet pipe 271, can be discharged from the flow hole 274, so that the lubricating oil is between the sliding rail body 21 and the sliding block 24, can be lubricated, and can reduce wear.

[0030] Working principle: the motor 1 and the speed reducer 4 adopt a separable connection mode, the traditional through bolt connection of the shaft coupling connection mode is changed to the permanent magnet coupling 3 connection, the motor 1 and the speed reducer 4 are in non-contact torque transmission in normal load operation, the motor 1 and the speed reducer 4 can realize the separation function in the operation of the air preheater, then the motor 1 and the motor base 11 are placed on the connecting frame 25, and the positioning is realized by means of the positioning groove 251 and the positioning block 12, then the knob 263 is rotated, the threaded column 264 can be rotated, the clamping plate 265 can be moved to the direction of the motor 1, the motor 1 can be clamped and limited, when the motor 1 fails, the motor 1 is moved by the electric sliding rail component 2, the electric sliding rail component 2 can automatically exit the connection with the speed reducer 4, when the electric sliding rail component 2 needs to be lubricated, the blocking block 272 is opened, lubricating oil is injected into the inner cavity 273 from the oil inlet pipe 271, can be discharged from the flow hole 274, so that the lubricating oil is between the sliding rail body 21 and the sliding block 24, can be lubricated.

[0031] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0032] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic disengagement structure for an air preheater motor after failure, comprising an electric slide rail component (2), characterized in that: The electric slide rail component (2) includes a slide rail body (21) and a base plate (22) set at the lower end of the slide rail body (21). The base plate (22) has mounting holes (23) on its surface. The mounting holes (23) and bolts can fix the position of the base plate (22). A slider (24) is slidably connected on the slide rail body (21). A connecting frame (25) is fixedly installed on the upper end of the slider (24). Limiting structures (26) are set on both the left and right sides of the connecting frame (25). A motor (1) is set on the connecting frame (25). A lubricating component (27) is also set on the outside of the slider (24). A permanent magnet coupling (3) is connected to the output end of the electric slide rail component (2). A reducer (4) is set on one side of the permanent magnet coupling (3). The motor (1) and the reducer (4) are connected by the permanent magnet coupling (3).

2. The automatic disconnection structure after air preheater motor failure according to claim 1, characterized in that: The lower end of the motor (1) is provided with a motor base (11), and a positioning block (12) is fixedly installed on the lower end of the motor base (11).

3. The automatic disconnection structure after air preheater motor failure according to claim 2, characterized in that: The slide rail body (21) and the slider (24) are provided in two sets, and the two sets of slide rail bodies (21) and sliders (24) are symmetrically distributed about the center line of the motor (1).

4. The automatic disconnection structure after air preheater motor failure according to claim 3, characterized in that: The surface of the connecting frame (25) is provided with a positioning groove (251), and the positioning groove (251) and the positioning block (12) are compatible.

5. The automatic disconnection structure after air preheater motor failure according to claim 4, characterized in that: The limiting structure (26) includes a fixing plate (261) disposed on the upper end of the connecting frame (25) and a sleeve block (262) disposed on the outside of the fixing plate (261). A knob (263) is disposed on the outside of the sleeve block (262). A threaded post (264) is disposed on the side of the knob (263) near the sleeve block (262). The threaded post (264) is threadedly rotatably connected inside the sleeve block (262). One end of the threaded post (264) is connected to a clamping plate (265).

6. The automatic disconnection structure after air preheater motor failure according to claim 5, characterized in that: The lubricating component (27) includes an oil inlet pipe (271) inserted through the outer wall of the slider (24) and an inner cavity (273) opened inside the slider (24). A sealing block (272) is provided on the outer side of the oil inlet pipe (271), and flow holes (274) for lubricating oil to flow out are evenly opened on the side wall of the flow hole (274).

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