CN214145876U

CN214145876U - Diesel engine accessory based on green

Info

Publication number: CN214145876U
Application number: CN201921928170.0U
Authority: CN
Inventors: 李欣
Original assignee: Sihong Zhigong Precision Machinery Co Ltd
Current assignee: Sihong Zhigong Precision Machinery Co Ltd
Priority date: 2019-11-10
Filing date: 2019-11-10
Publication date: 2021-09-07
Anticipated expiration: 2029-11-10

Abstract

The utility model provides a diesel engine accessory based on green, includes shell body, external rotor and inner rotor, the shell body includes bracket, the heat preservation pump body and the end cover through bolted connection, be provided with the bearing body between the heat preservation pump body and the bracket, install the drive shaft through the bearing in the shell body, the bearing includes cylindrical roller bearing and slide bearing, cylindrical roller bearing sets up on the bearing body, slide bearing sets up on the bearing frame of bracket tip. According to the green environment-friendly diesel engine accessory with the novel structure, the loop is arranged at the sealing section of the driving shaft, the surface of the loop is provided with a ceramic layer sprayed and sintered, and only the loop needs to be replaced when the loop is worn; when in maintenance, the rotor pump does not need to be greatly disassembled, thereby shortening the maintenance time and reducing the cost. The end cover with the novel structure can effectively avoid the phenomenon of looseness, and avoid oil overflow and waste. The utility model has the characteristics of simple structure, convenient operation and practicality are strong.

Description

Diesel engine accessory based on green

Technical Field

The utility model belongs to the technical field of the pump, especially, relate to a diesel engine accessory that can be based on green.

Background

The rotor pump is a chemical medium conveying device commonly used in the chemical industry, and particularly in the field of diesel engines, the medium conveyed by the rotor pump is usually special, such as corrosive and containing suspended particulate matters. At present, often adopt the sealed mode of packing to seal between bearing body and the drive shaft in the impeller pump field, but because in this kind of seal structure, drive shaft and packing are all damaged under the grinding of particulate matter very easily, so the sealing section spraying pottery in the drive shaft in order to increase the abrasion resistance of drive shaft, alleviate wearing and tearing generally of the same trade, but the shortcoming of this kind of way is: once the driving shaft or the sealing packing is seriously worn, the driving shaft or the packing needs to be replaced again, and at the moment, the pump needs to be greatly disassembled, so that the time and the labor are wasted, and the labor cost and the accessory cost of maintenance are high. The oil pump end cover is a cover installed on an oil pump machine, and the existing oil pump end cover is very easy to loosen under the long-time high-load working state, so that the oil leakage phenomenon of an oil pump is caused, or the oil overflows due to excessive oil, so that the waste phenomenon is caused, and therefore, the design of a novel oil pump end cover is necessary.

SUMMERY OF THE UTILITY MODEL

To the problem in the background, the utility model aims to provide a can avoid the oil spilling and produce extravagant phenomenon and be convenient for the diesel engine accessory based on green of maintenance.

In order to achieve the above object, the utility model provides a diesel engine accessory based on green, the pump body includes shell body, external rotor and inner rotor, the shell body includes bracket, the heat preservation pump body and the end cover through bolted connection, be provided with the bearing body between the heat preservation pump body and the bracket, install the drive shaft through the bearing in the shell body, the bearing includes cylindrical roller bearing and slide bearing, cylindrical roller bearing sets up on the bearing body, slide bearing sets up on the bearing frame of bracket tip, the outer rotor install the tip at the drive shaft and be located the heat preservation pump body, install the round pin axle on the end cover, the inner rotor install and sell epaxial and be located the inboard of outer rotor, be provided with sealing device between drive shaft and the bearing body, sealing device including fixing the packing box on the bearing body, The packing gland extrudes the sealing packing to enable the sealing packing to be respectively attached to the inner wall of the packing box and the outer wall of the driving shaft, and is characterized in that: a plurality of rectangular grooves are formed in the periphery of the end cover, a miniature fixing claw is embedded in each rectangular groove, a through hole is formed in the edge of the upper surface of the oil pump end cover body, a sliding groove is formed in the edge of the through hole, a sliding rail is formed in the surface of the bottom of the sliding groove, and the sliding rail is connected with a non-cover rectangular box body in a sliding mode; the outer side of a section of the driving shaft corresponding to the sealing filler is provided with a loop, and the end part of the loop is provided with a notch for accommodating a disassembling tool.

In order to improve the compactness and the simplicity of the whole pump body structure, the utility model discloses the improvement has, the loop pass through left-handed screw connection on the drive shaft.

In order to increase the wear resistance of the loop, the utility model discloses improve and have, the loop mainly by the stainless steel base member with sinter the carborundum ceramic layer composition in the stainless steel base member outside.

In order to facilitate the processing of the loop and have good comprehensive mechanical property, the utility model discloses improve and have, the stainless steel matrix pass through quenching and tempering.

In order to realize the best economic benefit, the utility model discloses the improvement have, the surface roughness of carborundum ceramic layer be not more than Ra0.8.

In order to take the end cover down from the oil pump conveniently, the utility model discloses the improvement has, the end cover upper surface is provided with the handle.

In order to facilitate the observation of the oil mass in the uncovered rectangular box body, the utility model discloses the improvement has, uncovered rectangular box body is transparent box body.

The beneficial effects of the utility model are that: according to the green environment-friendly diesel engine accessory with the novel structure, the loop is arranged at the sealing section of the driving shaft, the surface of the loop is provided with a ceramic layer sprayed and sintered, and only the loop needs to be replaced when the loop is worn; when in maintenance, the rotor pump does not need to be greatly disassembled, thereby shortening the maintenance time and reducing the cost; the loop is connected with the driving shaft through left-handed threads, and the driving shaft can be naturally locked by the loop in the clockwise rotation process without additionally designing a locking structure. The end cover with the novel structure can effectively avoid the phenomenon of looseness, and avoid oil overflow and waste. The utility model has the characteristics of simple structure, convenient operation and practicality are strong.

Drawings

Fig. 1 is a schematic structural diagram of a diesel engine accessory based on green environmental protection.

Fig. 2 is a schematic structural diagram of the loop of the present invention.

Fig. 3 is a schematic structural diagram of the novel oil pump end cover of the present invention.

Description of the drawings: 1-a bracket; 2-a heat preservation pump body; 3-an outer rotor; 4-end cover; 5-an inner rotor; 6-a pin shaft; 7-a drive shaft; 8-front bearing gland; 9-a bearing body; 10-cylindrical roller bearings; 11-stuffing box; 12-a sealing packing; 13-packing gland; 14-a plain bearing; 15-bearing seats; 16-rear bearing gland; 17-looping; 18-a silicon carbide ceramic layer; 19-a gap; 20-a rectangular groove; 21-a miniature stationary jaw; 22-a through hole; 23-a chute; 24-a slide rail; 25-uncovered rectangular box body; 26-handle.

Detailed Description

In order to make the technical solution of the present invention more apparent, the present invention will be further described in detail with reference to the following examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A diesel engine accessory based on green, the pump body includes shell body, outer rotor 3 and inner rotor 5, the shell body includes bracket 1, the heat preservation pump body 2 and the end cover 4 through bolted connection, be provided with bearing body 9 between the heat preservation pump body 2 and the bracket 1, install drive shaft 7 through the bearing in the shell body, the bearing includes cylindrical roller bearing 10 and slide bearing 14, cylindrical roller bearing 10 sets up on bearing body 9, slide bearing 14 sets up on the bearing frame 15 of bracket 1 tip, cylindrical roller bearing 1010 and slide bearing 14 compress tightly fixedly by front bearing gland 8 and back bearing gland 16 respectively, outer rotor 3 install the tip at drive shaft 7 and be located the heat preservation pump body 2, install round pin axle 6 on the end cover 4, inner rotor 5 install on round pin axle 6 and be located the inboard of outer rotor 3, a sealing device is arranged between the driving shaft 7 and the bearing body 9 and comprises a stuffing box 11 fixed on the bearing body 9, a sealing stuffing 12 in the stuffing box 11 and a stuffing cover 13, and the stuffing cover 13 extrudes the sealing stuffing 12 to be respectively attached to the inner wall of the stuffing box 11 and the outer wall of the driving shaft 7, so that sealing is realized.

The outer side of the section, corresponding to the sealing packing 12, of the driving shaft 7 is provided with a loop 17, and the loop 17 is connected with the driving shaft 7 through left-handed threads (common threads are right-handed threads), so that the loop 17 can be naturally locked (the driving shaft of a common rotor pump rotates clockwise) in the clockwise rotation process of the driving shaft 7, and a locking structure is not required to be additionally designed. The end part of the loop 17 is provided with a notch 19 for accommodating a disassembling tool, when in maintenance, the rotor pump does not need to be disassembled greatly, only the bearing seat 15 needs to be disassembled, and then the loop 17 can be disassembled by extending a special tool into the shell and rotating clockwise, so that the replacement of the loop 17 is realized.

The loop 17 mainly comprises a stainless steel substrate and a silicon carbide ceramic layer 18 sprayed and sintered on the outer side of the stainless steel substrate. The stainless steel substrate is subjected to quenching and tempering, so that the wear resistance of the loop is improved, the loop is convenient to process, and the loop has good comprehensive mechanical property. The surface roughness of the silicon carbide ceramic layer 18 is not more than Ra0.8, the service life of the seal is reduced due to too high roughness, so that the maintenance cost is increased, the manufacturing cost of the loop is increased due to too low roughness, and Ra0.8 is the best value for realizing economic benefit.

End cover 4 processes a plurality of rectangle recesses 20 all around, every miniature stationary dog 21 of embedded dress of rectangle recess 20, oil pump end cover 4 body upper surface edge processing through-hole 22, through-hole 22 edge processing spout 23, the spout is the direct groove of seting up on the end cover, 23 bottom surface processing slide rail 24 of spout, slide rail 24 connects uncovered rectangle box 25, end cover 4 upper surface is provided with handle 26, uncovered rectangle box 25 is the transparent box, and a containing box promptly is the cavity in the box, and oil can directly flow into the box. The fixing claw is fixed on the oil pump end cover 4 through the rectangular groove 20, the fixing effect is good, the fixing claw can fix the end cover 4 on the oil pump well, the loosening phenomenon is avoided, concretely, the fixing claw can be a buckle, a clamping hook is arranged at the corresponding position of the end cover, the buckle and the clamping hook can firmly fix the end cover and the end cover, when in other embodiments, the fixing claw can also be a bolt, the bolt can be rotatably arranged, a threaded hole is correspondingly arranged on the end cover and fixed in the threaded hole through the bolt, when the oil is excessive, the oil can overflow, the overflowing oil can overflow through a through hole 22 processed at the edge of the upper surface of the oil pump body, and then flows into the uncovered rectangular box body 25 through the sliding groove 23, the uncovered rectangular box body 25 is connected on the sliding groove 23 through the sliding rail 24, the sliding rail and the sliding groove are flush, concretely, the sliding rail is buckled on the sliding groove and can move on the sliding groove again, similar to the sheathed tube half, owing to be conventional technique, the utility model discloses do not show in the picture, when bearing a certain amount of oil in the rectangular box, can take its slip down, convenient and fast, handle 26 that the oil tank upper surface was equipped with can be very convenient take off oil pump end cover 4 from the oil pump, the utility model discloses simple structure, convenient operation, the practicality is strong.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A diesel engine accessory based on green environmental protection comprises a pump body, wherein the pump body comprises an outer shell, an outer rotor and an inner rotor, the outer shell comprises a bracket, a heat preservation pump body and an end cover which are connected through bolts, a bearing body is arranged between the heat preservation pump body and the bracket, a driving shaft is arranged in the outer shell through a bearing, the bearing comprises a cylindrical roller bearing and a sliding bearing, the cylindrical roller bearing is arranged on the bearing body, the sliding bearing is arranged on a bearing seat at the end part of the bracket, the outer rotor is arranged at the end part of the driving shaft and positioned in the heat preservation pump body, a pin shaft is arranged on the end cover, the inner rotor is arranged on the pin shaft and positioned at the inner side of the outer rotor, a sealing device is arranged between the driving shaft and the bearing body, and the sealing device comprises a stuffing box fixed on the bearing body, sealing stuffing and a stuffing cover, gland extrusion seal packing makes it laminate with the inner wall of packing box and the outer wall of drive shaft respectively, its characterized in that: the periphery of the end cover is provided with a plurality of rectangular grooves, a miniature fixing claw is embedded in each rectangular groove, each fixing claw is a buckle, a clamping hook is arranged at a corresponding position of the end cover and is fixedly fixed through the buckle and the clamping hook, a through hole is formed in the edge of the upper surface of the end cover body, a sliding groove is formed in the edge of the through hole, a sliding rail is formed in the surface of the bottom of the sliding groove, and the sliding rail is connected with the uncovered rectangular box body; the outer side of a section of the driving shaft corresponding to the sealing filler is provided with a loop, and the end part of the loop is provided with a notch for accommodating a disassembling tool.

2. The green environmental-based diesel engine fitting according to claim 1, wherein: the loop is connected to the driving shaft through a left-hand thread.

3. The green environmental-based diesel engine fitting according to claim 1, wherein: the loop mainly comprises a stainless steel matrix and a silicon carbide ceramic layer sintered on the outer side of the stainless steel matrix.

4. A green environmental based diesel engine fitting according to claim 3, wherein: the stainless steel matrix is subjected to quenching and tempering treatment.

5. A green environmental based diesel engine fitting according to claim 3, wherein: the surface roughness of the silicon carbide ceramic layer is not more than Ra0.8.

6. The green environmental-based diesel engine fitting according to claim 1, wherein: the upper surface of the end cover is provided with a handle.

7. The green environmental-based diesel engine fitting according to claim 1, wherein: the uncovered rectangular box body is a transparent box body.