Sealing element of boiler feed pump
Technical Field
The utility model relates to a sealing member technical field, concretely relates to sealing member of boiler feed pump.
Background
In a boiler feed pump, since a drive shaft penetrates inside and outside the apparatus with a circumferential gap between the shaft and the apparatus, a seal for sealing is often installed at this position to prevent the medium in the apparatus from leaking outside through the gap and also to prevent air from leaking into the apparatus.
Spring is one of the indispensable important part among the sealing member among the prior art, utilize the elasticity of spring self can be with the inseparable extrusion of sealing washer in the outer end of transmission shaft, however, because the transmission shaft can rub the heat production at driven in-process, the spring is heated after inefficacy easily and can't carry out effectual sealed to the transmission shaft, and because the spring mounting is in the inside of sealing member, so staff also can't in time discover when the spring became invalid, can only discover when taking place to leak, easily delay the best processing time, cause unestimulable economic loss.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a sealing member of boiler feed pump, through a side-mounting quarter butt at first spacing ring, in case the spring became invalid, the sealing washer is not hard up can promote first spacing ring and remove, and make first spacing ring drive the quarter butt and to being close to the one side removal that dabs the switch, make quarter butt one end with dabble the switch and contact, thereby can utilize to dabble the switch and start bee calling organ, make bee calling organ can in time send out the police dispatch newspaper, remind staff's spring to become invalid, in order to avoid causing bigger economic loss, in order to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the utility model provides a sealing member of boiler feed pump, includes the sealed lid of first sealed lid and second, the sealed lid of second is established in first sealed lid one side, the inside same clamping ring that is equipped with of first sealed lid and the sealed lid of second, clamping ring one side is equipped with the sealing washer, sealing washer one side is equipped with first spacing ring, first spacing ring one side is equipped with the spring that is in compression state, the spring top is equipped with the quarter butt, quarter butt one end and first spacing ring one side fixed connection, be equipped with in the inside lateral wall of first sealed lid and dabble the switch, the quarter butt is located dabs switch one side, first sealed lid one side is equipped with bee calling organ, dabble on-off control bee calling organ.
Further, the inside same water pump transmission shaft that is equipped with of first sealed lid and the sealed lid of second, clamping ring, sealing washer, first spacing ring and spring all overlap in water pump transmission shaft outer end, sealing washer and water pump transmission shaft outer end in close contact with, first spacing ring and spring slide in water pump transmission shaft outer end, first sealed lid and the sealed lid of second pass through sealed bearing swing joint with water pump transmission shaft both ends respectively, and water pump transmission shaft can drive second spacing ring, clamping ring and sealing washer at the pivoted in-process and rotate, and the sealing washer can improve with the synchronous rotation of water pump transmission shaft the utility model discloses a sealing performance.
Furthermore, first spacing ring top is equipped with a plurality of first balls, and is a plurality of first ball uses the center of first spacing ring as centre of a circle evenly distributed, first spacing ring one side is equipped with a plurality of second balls, and is a plurality of the second ball uses the center of first spacing ring as centre of a circle evenly distributed, the second ball contacts with clamping ring outer wall one side, is convenient for when the clamping ring is moving, reduces the frictional force between first spacing ring and the clamping ring.
Further, first ball top inlays inside the clamping ring, the arc channel has been seted up to the clamping ring bottom, first ball top rolls in the arc channel, is convenient for restrict the position of first ball through this arc channel to can utilize the position of first ball restriction first spacing ring, make first spacing ring can also carry on spacingly, the extension to the sealing washer temporarily when the spring became invalid the utility model discloses a life.
Furthermore, the inside one end of second sealed lid has the second spacing ring through bearing swing joint, clamping ring one end is pegged graft inside the second spacing ring, is convenient for utilize the position of second spacing ring restriction clamping ring.
Furthermore, one side of the top end of the first sealing cover, which is close to the second sealing cover, is fixedly provided with a first flange, one side of the first flange is provided with a second flange, the second flange is fixedly arranged at the outer end of the second sealing cover, and the first flange is in contact with the second flange, so that the first sealing cover and the second sealing cover are fixedly connected together through the first flange and the second flange.
Furthermore, a plurality of through holes are formed in the first flange and the second flange, a plurality of bolts are arranged inside the through holes, each bolt penetrates through the two through holes, nuts are arranged at the tail ends of the bolts and are in threaded connection with the bolts, the first flange and the second flange are conveniently connected together through the bolts, and therefore the first sealing cover and the second sealing cover can be connected together.
The utility model has the advantages of as follows:
1. the utility model utilizes the first limit ring and the compression ring to limit the sealing ring, and a spring is arranged on one side of the first limit ring, so that the spring can be in a compression state, the first limit ring is extruded to one side by utilizing the self elasticity of the compressed spring, and the extrusion force of the first limit ring to the sealing ring can be increased, thereby limiting the position of the sealing ring and ensuring the sealing performance of the utility model;
2. the utility model discloses an at a side-mounting quarter butt of first spacing ring, in case the spring became invalid, the sealing washer is not hard up can promote first spacing ring and remove to make first spacing ring drive the quarter butt and to being close to the one side removal that dabs the switch, make quarter butt one end with dabs the switch and contact, thereby can utilize to dabber the switch and start bee calling organ, make bee calling organ can in time send out the police dispatch newspaper, remind staff's spring to become invalid, in order to avoid causing bigger economic loss.
Drawings
Fig. 1 is a schematic view of the overall structure provided by the present invention;
fig. 2 is a cross-sectional view provided by the present invention;
fig. 3 is an enlarged view of a in fig. 2 according to the present invention;
fig. 4 is an enlarged view of B in fig. 2 according to the present invention;
fig. 5 is an exploded view provided by the present invention.
In the figure: the water pump comprises a water pump transmission shaft 1, a first sealing cover 2, a second sealing cover 3, a pressing ring 4, a sealing ring 5, a first limiting ring 6, a spring 7, a short rod 8, a light touch switch 9, a buzzer 10, a first ball 11, a second ball 12, a second limiting ring 13, a first flange 14, a second flange 15, a through hole 16 and a bolt 17.
Detailed Description
The present invention is described in detail with reference to the specific embodiments, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure herein. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings 1-3 of the specification, the sealing member of the boiler feed pump of the embodiment comprises a first sealing cover 2 and a second sealing cover 3, the second sealing cover 3 is arranged on one side of the first sealing cover 2, the same press ring 4 is arranged inside the first sealing cover 2 and the second sealing cover 3, a sealing ring 5 is arranged on one side of the press ring 4, a first limiting ring 6 is arranged on one side of the sealing ring 5, a spring 7 in a compressed state is arranged on one side of the first limiting ring 6, a short rod 8 is arranged at the top of the spring 7, one end of the short rod 8 is fixedly connected with one side of the first limiting ring 6, a tact switch 9 is arranged in one side wall inside the first sealing cover 2, the short rod 8 is positioned on one side of the tact switch 9, a buzzer 10 is arranged on one side of the first sealing cover 2, the tact switch 9 controls the buzzer 10, and the same feed pump transmission shaft 1 is arranged inside the first sealing cover 2 and the second sealing cover 3, clamping ring 4, sealing washer 5, first spacing ring 6 and spring 7 all overlap in 1 outer end of feed pump transmission shaft, sealing washer 5 and 1 outer end in close contact with of feed pump transmission shaft, first spacing ring 6 and spring 7 slide in 1 outer end of feed pump transmission shaft, sealed lid of first sealed 2 and second 3 respectively with 1 both ends of feed pump transmission shaft through sealed bearing swing joint, feed pump transmission shaft 1 can drive second spacing ring 13, clamping ring 4 and sealing washer 5 rotation at the pivoted in-process, sealing washer 5 can improve with 1 synchronous rotation of feed pump transmission shaft the utility model discloses a sealing performance.
The implementation scenario is specifically as follows: when the utility model is used, the sealing ring 5 rotates synchronously along with the water feeding pump transmission shaft 1, the sealing ring 5 can seal the circumferential gap existing at the outer end of the water feeding pump transmission shaft 1, thereby preventing leakage, and the spring 7 is in a compression state, so the elastic force of the spring 7 can push the first spacing ring 6 box to move close to one side of the sealing ring 5, the first spacing ring 6 can limit the movement of the sealing ring 5, the sealing performance of the utility model is improved, and when the spring 7 fails due to heating, the sealing ring 5 can be loosened to push the first spacing ring 6 to move close to one side of the spring 7, so that the first spacing ring 6 can drive the short rod 8 to move close to one side of the tact switch 9 and contact with the short rod 8, thereby the tact switch 9 can be started, and the buzzer 10 is started through the tact switch 9, so that the buzzer 10 can make a sound to remind the worker that the spring 7 has failed, so that the worker can be informed in time, and the worker can handle the failed spring 7 in time to avoid causing greater economic loss.
Referring to the attached drawing 4 in the specification, in the sealing member of the boiler feed pump of the embodiment, the top end of the first limit ring 6 is provided with a plurality of first balls 11, the plurality of first balls 11 are uniformly distributed around the center of the first limit ring 6, one side of the first limit ring 6 is provided with a plurality of second balls 12, the plurality of second balls 12 are uniformly distributed around the center of the first limit ring 6, the second balls 12 are in contact with one side of the outer wall of the compression ring 4, so that when the compression ring 4 rotates along with the feed pump transmission shaft 1, the first balls 11 and the second balls 12 can respectively roll at the outer end and the inner part of the first limit ring 6, the friction force between the first limit ring 6 and the compression ring 4 is reduced, the top end of the first ball 11 is embedded in the compression ring 4, the bottom end of the compression ring 4 is provided with an arc-shaped channel, and the top end of the first ball 11 rolls in the arc-shaped channel, the position of the first ball 11 is limited conveniently through the arc-shaped groove channel, so that the position of the first limiting ring 6 can be limited by the first ball 11, and the first limiting ring 6 can limit the sealing ring 5 temporarily when the spring 7 fails.
Referring to the attached drawings 2 and 5 in the specification, in the sealing member of the boiler feed pump of the embodiment, one end inside the second sealing cover 3 is movably connected with a second limiting ring 13 through a bearing, one end of the press ring 4 is inserted inside the second limiting ring 13, so that the position of the press ring 4 is limited by the second limiting ring 13, one side of the top end of the first sealing cover 2, which is close to the second sealing cover 3, is fixedly provided with a first flange 14, one side of the first flange 14 is provided with a second flange 15, the second flange 15 is fixedly arranged at the outer end of the second sealing cover 3, the first flange 14 is in contact with the second flange 15, so that the first sealing cover 2 and the second sealing cover 3 are fixedly connected together through the first flange 14 and the second flange 15, the first flange 14 and the second flange 15 are both provided with a plurality of through holes 16, a plurality of bolts 17 are arranged inside the through holes 16, and each bolt 17 penetrates through two through holes 16, the tail end of the bolt 17 is provided with a nut, and the nut is in threaded connection with the bolt 17, so that the first flange 14 and the second flange 15 are tightly connected together through the bolt 17, and the first sealing cover 2 and the second sealing cover 3 can be connected together.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.