Starter oil pump convenient to dismantle and overhaul
Technical Field
The utility model relates to the technical field of starter oil pumps, in particular to a starter oil pump convenient to detach and overhaul.
Background
The starting oil pump is an alternating current electric oil pump or a gasoline pump for providing pressure oil for a regulating oil system and a lubricating oil system when a unit is started and stopped or a main oil pump fails. The engine oil pump is used for supplying oil to various lubrication positions of the diesel engine before the diesel engine is started so as to reduce the starting resistance and abrasion of the diesel engine
The prior art has the following defects: the shell of current start-up oil pump adopts whole casting piece usually, and then when it appears damaging, the staff can't be convenient dismantle it to overhaul and change its inside spare part, only can wholly change the start-up oil pump, and then can increase the manufacturing cost who starts the oil pump, also can shorten the life who starts the oil pump.
The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to provide a starting oil pump convenient to detach and overhaul, which can connect and fix a front seat plate, a first pump body, a second pump body, a third pump body and a rear pump cover through connecting pins, and simultaneously, through long bolts penetrating through the rear pump cover, the third pump body, the second pump body and the first pump body and being connected with the front seat plate, the connection among all parts of the starting oil pump is more compact and firm, the traditional integral casting forming is replaced by the arrangement of multiple parts of the starting oil pump, so that the assembling and the disassembling of the starting oil pump are more convenient, and when the internal parts of the starting oil pump are damaged, workers can conveniently detach and overhaul the starting oil pump, so that the defects in the technology are overcome.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a starter oil pump convenient to dismantle overhauls, includes the pump body, still includes:
the one-way valve is arranged in the pump body and used for controlling the flow direction of oil;
the pressure regulating valve is arranged in the pump body and used for controlling the flow pressure of oil;
the connecting pin is arranged in the pump body and used for connecting and fixing all parts of the pump body;
the driven shaft and the driving shaft are arranged in the pump body, and gears are arranged between the outer side of the driving shaft and the outer side of the driven shaft and are in transmission connection through the gears;
the long bolts are used for connecting and fixing the integral parts of the pump body;
the pump body includes the front seat board, the one end of front seat board is provided with first pump body, the one end that front seat board was kept away from to first pump body is provided with the second pump body, the one end that first pump body was kept away from to the second pump body is provided with the third pump body, the one end that the second pump body was kept away from to the third pump body is provided with back pump cover.
Preferably, the front seat board is close to the inner wall of one end of the first pump body and is fixedly provided with a shaft sleeve, the inner wall of one end of the front seat board, which is far away from the first pump body, is rotationally provided with a fixed bearing, and the inner wall of the fixed bearing and the shaft sleeve are movably connected with the outer wall of the driving shaft.
Preferably, the retaining rings are fixedly installed at two ends of the inner wall of the front seat board, and the two retaining rings are respectively arranged on the outer walls of one ends of the fixed bearing and the shaft sleeve.
Preferably, the two sides of the inner wall of one end of the first pump body far away from the front seat plate and the two sides of the inner wall of one end of the third pump body close to the second pump body are respectively provided with a needle bearing in a rotating mode, the inner walls of the two needle bearings at the bottom are connected with the outer wall of the driving shaft in a rotating mode, and the inner walls of the two needle bearings at the top are connected with the outer wall of the driven shaft in a rotating mode.
Preferably, keys are arranged between the outer walls of the driving shaft and the driven shaft and the second pump body and are fixedly connected through the keys, and O-shaped rings are arranged on the outer sides of the gears and the second pump body support.
Preferably, screw covers are rotatably arranged on the outer walls of the two sides of the third pump body, the pressure regulating valve is arranged on the outer wall of one side of the rear pump cover, and a fixing nut is fixedly arranged on the outer side of the pressure regulating valve.
Preferably, the outside screw thread of fixation nut has cup jointed sealing nut, be provided with sealed pad between sealing nut and the back pump cover outer wall.
Preferably, the front seat plate, the first pump body, the second pump body, the third pump body and the inner wall of the rear pump cover are fixedly connected through connecting pins, and the four long bolts sequentially penetrate through the rear pump cover, the third pump body, the second pump body and the first pump body and are in threaded connection with the front seat plate.
In the technical scheme, the utility model has the technical effects and advantages that:
the front seat plate, the first pump body, the second pump body, the third pump body and the rear pump cover can be connected and fixed through the connecting pins, and meanwhile, long bolts penetrate through the rear pump cover, the third pump body, the second pump body and the first pump body and are connected with the front seat plate, so that connection among all parts of the starting oil pump is more compact and firm, the traditional integral casting forming is replaced by the arrangement of multiple parts of the starting oil pump, the starting oil pump is more convenient to assemble and disassemble, and when parts inside the starting oil pump are damaged, workers can conveniently disassemble and overhaul the starting oil pump;
the gasket can seal all parts of the starting oil pump, meanwhile, the driving shaft and the external interface part are mechanically sealed, and meanwhile, the pressure regulating valve and the external interface part are sealed by the sealing gasket and the sealing nut, so that the starting oil pump has good sealing performance.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a front view of the present utility model.
Fig. 2 is a top cross-sectional view of the present utility model.
Fig. 3 is a front vertical sectional view of the structure of the present utility model.
Reference numerals illustrate:
1. a front seat plate; 2. a first pump body; 3. a second pump body; 4. a third pump body; 5. a rear pump cover; 6. a one-way valve; 7. a pressure regulating valve; 8. a retainer ring; 9. a connecting pin; 10. a driven shaft; 11. a driving shaft; 12. fixing a bearing; 13. a shaft sleeve; 14. needle roller bearings; 15. a gear; 16. an O-ring; 17. a key; 18. a screw cap; 19. a seal nut; 20. a fixing nut; 21. a sealing gasket; 22. and (5) a long bolt.
Description of the embodiments
The utility model provides a starter oil pump which is shown in fig. 2 and is convenient to detach and overhaul, comprising a pump body and further comprising:
a check valve 6 disposed inside the pump body for controlling a flow direction of the oil;
a pressure regulating valve 7 provided in the pump body for controlling the flow pressure of the oil;
and the connecting pin 9 is arranged in the pump body and is used for connecting and fixing all parts of the pump body.
In order to realize the work of starting the engine oil pump, as shown in fig. 3, the driven shaft 10 and the driving shaft 11 are arranged in the pump body, a gear 15 is arranged between the outer side of the driving shaft 11 and the outer side of the driven shaft 10 and is in transmission connection through the gear 15, a key 17 is arranged between the outer walls of the driving shaft 11 and the driven shaft 10 and the second pump body 3 and is fixedly connected through the key 17, an O-shaped ring 16 is arranged between the outer side of the gear 15 and a support of the second pump body 3, and the driving shaft 11 works to enable the driven shaft 10 to rotate through the meshing transmission of the gear 15.
In order to enable the starting oil pump to be conveniently detached, as shown in fig. 1, the pump body comprises a front seat plate 1, one end of the front seat plate 1 is provided with a first pump body 2, one end of the front seat plate 1, which is far away from the first pump body 2, is provided with a second pump body 3, one end, which is far away from the first pump body 2, of the second pump body 3 is provided with a third pump body 4, one end, which is far away from the second pump body 3, of the third pump body 4 is provided with a rear pump cover 5, and the traditional integral casting is changed through multi-part pump body setting, so that workers can conveniently detach the inside of the starting oil pump.
In order to keep the driving shaft 11 and the driven shaft 10 stable in the rotation process, as shown in fig. 3, a shaft sleeve 13 is fixedly installed on the inner wall of one end of the front seat board 1, which is close to the first pump body 2, a fixed bearing 12 is rotatably installed on the inner wall of one end of the front seat board 1, which is far away from the first pump body 2, the inner wall of the fixed bearing 12 and the shaft sleeve 13 are movably connected with the outer wall of the driving shaft 11, needle bearings 14 are rotatably installed on both sides of the inner wall of one end of the first pump body 2, which is far away from the front seat board 1, and both sides of the inner wall of one end of the third pump body 4, which is close to the second pump body 3, the inner walls of the bottom two needle bearings 14 are rotatably connected with the outer wall of the driving shaft 11, the inner walls of the top two needle bearings 14 are rotatably connected with the outer wall of the driven shaft 10, the rotation of the driving shaft 11 can be supported and limited by the fixed bearing 12, the shaft sleeve 13 and the needle bearings 14, and the rotation of the driven shaft 10 can be supported and limited by the needle bearings 14.
In order to enable tightness among all parts in the pump body, as shown in fig. 2 and 3, two ends of the inner wall of the front seat board 1 are fixedly provided with check rings 8, two check rings 8 are respectively arranged on one end outer wall of the fixed bearing 12 and one end outer wall of the shaft sleeve 13, two side outer walls of the third pump body 4 are rotatably provided with screw covers 18, the pressure regulating valve 7 is arranged on one side outer wall of the rear pump cover 5, the outer side of the pressure regulating valve 7 is fixedly provided with a fixing nut 20, the outer side of the fixing nut 20 is in threaded sleeve connection with a sealing nut 19, and a sealing gasket 21 is arranged between the sealing nut 19 and the outer wall of the rear pump cover 5.
In order to enable the parts of the pump body to be tightly connected, the parts of the pump body are kept stable in the working process, four long bolts 22 are arranged and used for connecting and fixing integral parts of the pump body, the front seat plate 1, the first pump body 2, the second pump body 3, the third pump body 4 and the inner wall of the rear pump cover 5 are fixedly connected through connecting pins 9, the four long bolts 22 sequentially penetrate through the rear pump cover 5, the third pump body 4, the second pump body 3 and the first pump body 2 and are in threaded connection with the front seat plate 1, and the connecting pins 9 and the long bolts 22 enable the parts of the pump body to be tightly connected together.
The implementation mode specifically comprises the following steps: in the process of starting the oil pump production and manufacturing, the appearance part is composed of a rear pump cover 5, a front seat plate 1, a first pump body 2, a second pump body 3 and a third pump body 4, each part is connected by a connecting pin 9, the flow direction and pressure of oil are controlled by a one-way valve 6 in the second pump body 2 and a pressure regulating valve 7 on the outer side of the rear pump cover 5, the pressure regulating valve 7 and an external interface part are sealed by a sealing gasket 21 and a sealing nut 19, so that the device has better tightness, meanwhile, a driving shaft 11 and a driven shaft 10 are fixed on the pump body by a key 17, the driving shaft 11 can be supported and limited by a needle bearing 14, a shaft sleeve 13 and a fixed bearing 12, the needle bearing 14 on the top can support and limit the driven shaft 10, so that the driving shaft 11 and the driven shaft 10 are kept stable in the rotation process, the rotation of the oil pump is controlled by the cooperation of a gear 15, the driving shaft 11 and the external interface part are sealed by a mechanical seal, and finally, the whole oil pump is fixed by 4 long bolts 22 after the assembly of each part, so that the starting pump is more convenient to mount and dismount, and dismount the starting pump can not be realized, and the oil pump can not be dismounted by the conventional oil pump, and the conventional oil pump can be conveniently and quickly started.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.