CN217890839U

CN217890839U - Novel extracting tool of hollow shaft type speed reducer of air heater

Info

Publication number: CN217890839U
Application number: CN202220774237.5U
Authority: CN
Inventors: 王奕涵; 蒋立军; 丛述广; 马忠南; 燕宇; 静锴; 肖永国
Original assignee: Huaneng Dalian Thermal Power Co Ltd
Current assignee: Huaneng Dalian Thermal Power Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-11-25
Anticipated expiration: 2032-04-01

Abstract

The utility model provides a novel extracting tool of hollow shaft type speed reducer of air heater, including the portal frame, the portal frame includes coupling assembling and jack, coupling assembling includes the backup pad, the top surface inner wall of backup pad fixed connection portal frame, backup pad top surface edge all around is equipped with the floor respectively, floor fixed connection portal frame outer wall, backup pad bottom surface center department is equipped with the draw-in groove, draw-in groove swing joint jack, the portal frame is close to the parallel and symmetry of both sides surface of jack and is equipped with the casing, one side outer wall that the casing is close to the jack is equipped with a plurality of spouts respectively, the inside swing joint of spout has the movable rod, the one end that the movable rod is close to the jack is equipped with the stopper, stopper swing joint jack outer wall, the other end of movable rod is equipped with the spring, the spout inner wall is fixed to the spring, the utility model discloses can take out the speed reducer under the condition that the broken circumstances of tearing open and need not tear open, this has promoted demolishd efficiency greatly, avoid the end axle to lead to damage because of improper dismantlement, staff's use has been made things convenient for.

Description

Novel extracting tool of hollow shaft type speed reducer of air heater

Technical Field

The utility model relates to a technical field of the hollow shaft type speed reducer maintenance of air heater specifically is a novel extracting tool of hollow shaft type speed reducer of air heater.

Background

At present, an end shaft and a hollow shaft of most air preheater hollow shaft type speed reducers at home and abroad are locked and connected by a locking disc and rotate synchronously during operation, in order to ensure that the hollow shaft and the end shaft rotate synchronously, prevent the two shafts from sliding relatively during operation and reduce friction between the two shafts, lubricating oil and lubricating grease are strictly coated between the two shafts during installation, in addition, the hollow shaft and the end shaft of the speed reducer are difficult to separate when the speed reducer needs to be removed for returning to a factory to overhaul the air preheater hollow shaft type speed reducer or replacing an air preheater guide bearing and the like due to the reasons that the two shafts are tightly attached and the gap is gradually reduced when the two shafts rotate and heat for a long time and the relative motion is more or less generated during operation, the phenomenon of galling is generated and the like, and the hollow shaft and the end shaft of the speed reducer are difficult to separate, so that the overhaul difficulty and the time are greatly increased

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a novel extracting tool of hollow shaft type speed reducer of air heater for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a novel extracting tool of hollow shaft type speed reducer of air heater, includes the portal frame, the portal frame includes coupling assembling and jack, coupling assembling includes the backup pad, the top surface inner wall fixedly connected with backup pad of portal frame, the edge is equipped with the floor respectively all around on the backup pad top surface, floor fixedly connected with portal frame outer wall, just backup pad bottom surface center department is equipped with the draw-in groove, draw-in groove swing joint jack, the portal frame is close to the parallel and symmetry of both sides surface of jack and is equipped with the casing, one side outer wall that the casing is close to the jack is equipped with a plurality of spouts respectively, the inside swing joint of spout has the movable rod, the one end that the movable rod is close to the jack is equipped with the stopper, stopper swing joint jack outer wall, the other end of movable rod is equipped with the spring, the spout inner wall is fixed to the spring.

Preferably, the inner surface of the portal frame is in a step-shaped arrangement, the step size of the portal frame is respectively larger than the outer diameter sizes of the hollow shaft of the speed reducer and the jack, and the jack is smaller than the outer diameter size of the hollow shaft of the speed reducer.

Preferably, the portal frame is made of an integral steel plate, the thickness of the portal frame is larger than 40mm, and the integral strength of the portal frame is improved through the arrangement.

Preferably, the one end symmetry that the movable rod is close to the spring is equipped with the slider, slider sliding connection spout inner wall can play the effect of carrying out the restriction to the movable rod through the slider, has prevented that the movable rod from taking place to drop.

Preferably, the inner surface interference of stopper is connected with the rubber ball piece, can play through the rubber ball piece and make the jack carry out vertical gliding effect inside the stopper.

Preferably, the stopper is the arc setting, the internal diameter of stopper and the external diameter of jack set up unanimously, can play the effect that makes the stopper laminating jack outer wall through this setting to the fixed effect of stopper has been improved.

Preferably, the outer wall of one side that the portal frame was kept away from to the casing is equipped with the access door, can play the effect that makes things convenient for the staff to change spout internals through the access door.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model can take out the end shaft of the speed reducer without breaking and dismantling through the portal frame, the supporting plate, the rib plate, the clamping groove and the jack, thereby greatly improving the dismantling efficiency, avoiding the damage of the end shaft caused by improper dismantling and facilitating the use of workers; the jack can be limited through the shell, the sliding groove, the movable rod, the limiting block and the spring, and unnecessary deviation is prevented from occurring in the process of installing the jack; the movable rod can be limited through the sliding block, so that the movable rod is prevented from falling off; the jack can slide vertically in the limiting block through the rubber ball block; the internal parts of the sliding groove can be conveniently replaced by workers through the access door.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic side sectional view of the present invention;

fig. 3 is a schematic top sectional view of the present invention;

fig. 4 is an enlarged schematic view of the area a of fig. 2.

In the figure: 1. a gantry; 11. a connection assembly; 111. a support plate; 112. a rib plate; 113. a card slot; 114. a housing; 115. a chute; 116. a movable rod; 1161. a slider; 117. a limiting block; 1171. a rubber ball block; 118. a spring; 12. a jack; 13. and (4) an access door.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-4 heavily, a novel extracting tool of hollow shaft type speed reducer of air preheater includes portal frame 1, portal frame 1 includes coupling assembling 11 and jack 12, coupling assembling 11 includes backup pad 111, portal frame 1's top surface inner wall fixedly connected with backup pad 111, backup pad 111 top surface edge all around is equipped with floor 112 respectively, floor 112 fixedly connected with portal frame 1 outer wall, just backup pad 111 bottom surface center department is equipped with draw-in groove 113, draw-in groove 113 swing joint jack 12, portal frame 1 is close to the parallel and symmetry of both sides surface of jack 12 and is equipped with casing 114, casing 114 is close to one side outer wall of jack 12 and is equipped with a plurality of spouts 115 respectively, spout 115 inside swing joint has movable rod 116, movable rod 116 is close to the one end of jack 12 and is equipped with stopper 117, stopper 117 swing joint jack 12 outer wall, the other end of movable rod 116 is equipped with spring 118, spring 118 fixes the spout 115 inner wall.

Please refer to fig. 1 and 2, the inner surface of the gantry 1 is arranged in a step shape, the step size of the gantry 1 is respectively larger than the outer diameter of the hollow shaft of the speed reducer and the outer diameter of the jack 12, and the jack 12 is smaller than the outer diameter of the hollow shaft of the speed reducer.

Please refer to fig. 1, the gantry 1 is made of an integral steel plate, and the thickness of the gantry 1 is greater than 40mm, so that the overall strength of the gantry 1 is increased.

Please refer to fig. 2 and 4 again, the sliding block 1161 is symmetrically disposed at one end of the movable rod 116 close to the spring 118, the sliding block 1161 is slidably connected to the inner wall of the sliding slot 115, and the sliding block 1161 can limit the movable rod 116, so as to prevent the movable rod 116 from falling off.

Referring to fig. 2 and 4 again, the inner surface of the stopper 117 is connected with a rubber ball 1171 in an interference manner, and the rubber ball 1171 can serve to make the jack 12 slide vertically inside the stopper 117.

Please refer to fig. 1, 2 and 4 again, the limiting block 117 is arc-shaped, the inner diameter of the limiting block 117 is consistent with the outer diameter of the jack 12, and the limiting block 117 can be attached to the outer wall of the jack 12 through the arc-shaped limiting block 117, so that the fixing effect of the limiting block 117 is improved.

Please refer to fig. 1 again, an access door 13 is disposed on an outer wall of the housing 114 at a side away from the gantry 1, and the access door 13 can be used for facilitating a worker to replace parts inside the sliding groove 115.

The utility model discloses a concrete operation mode as follows:

firstly, portal frame 1 is welded with the upper end face of the hollow shaft of the speed reducer, after welding, then jack 12 is placed in portal frame 1, the top surface of jack 12 can be spliced with clamping groove 113 of supporting plate 111, meanwhile, limiting block 117 of connecting assembly 11 can push limiting block 117 to move to the outside of shell 114 through sliding groove 115, movable rod 116, sliding block 1161 and spring 118, limiting block 117 can limit the outer wall of jack 12, after limiting, jack 12 is started, jack 12 can separate the end shaft from the inside of the hollow shaft of the speed reducer.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides a novel extracting tool of air heater hollow shaft type speed reducer, includes portal frame (1), its characterized in that, portal frame (1) is including coupling assembling (11) and jack (12), coupling assembling (11) are including backup pad (111), the top surface inner wall of backup pad (111) fixed connection portal frame (1), backup pad (111) top surface edge all around is equipped with floor (112) respectively, floor (112) fixedly connected with portal frame (1) outer wall, just backup pad (111) bottom surface center department is equipped with draw-in groove (113), draw-in groove (113) swing joint jack (12), portal frame (1) is close to the both sides surface parallel and the symmetry of jack (12) and is equipped with casing (114), casing (114) are close to one side outer wall of jack (12) and are equipped with a plurality of spouts (115) respectively, spout (115) inside swing joint has movable rod (116), the one end that movable rod (116) are close to jack (12) is equipped with stopper (117), stopper (117) swing joint jack (12) outer wall, the other end of movable rod (116) is equipped with spring (118), spout (118) fixed spring (118).

2. The disassembling tool for the hollow shaft type speed reducer of the novel air preheater as claimed in claim 1, wherein the inner surface of the portal frame (1) is arranged in a step shape, the step size of the portal frame (1) is respectively larger than the outer diameter size of the hollow shaft of the speed reducer and the outer diameter size of the jack (12), and the jack (12) is smaller than the outer diameter size of the hollow shaft of the speed reducer.

3. The disassembling tool for the novel air preheater hollow shaft type speed reducer according to claim 1, wherein the portal frame (1) is made of an integral steel plate, and the thickness of the portal frame (1) is greater than 40mm.

4. The disassembling tool for the novel air preheater hollow shaft type speed reducer according to claim 1, wherein the movable rod (116) is symmetrically provided with sliding blocks (1161) at one end close to the spring (118), and the sliding blocks (1161) are slidably connected with the inner wall of the sliding groove (115).

5. The disassembling tool of the novel air preheater hollow shaft type speed reducer is characterized in that a rubber ball block (1171) is connected to the inner surface of the limiting block (117) in an interference mode.

6. The disassembling tool for the novel air preheater hollow shaft type speed reducer according to claim 1, wherein the limiting block (117) is arranged in an arc shape, and the inner diameter of the limiting block (117) is consistent with the outer diameter of the jack (12).

7. The disassembling tool for the novel air preheater hollow shaft type speed reducer according to claim 1, wherein an access door (13) is arranged on the outer wall of one side of the shell (114) far away from the portal frame (1).