CN218760997U

CN218760997U - Transmission shaft component of fuel injection pump

Info

Publication number: CN218760997U
Application number: CN202223122055.9U
Authority: CN
Inventors: 薛皎; 杨善山
Original assignee: Taizhou Deji Precision Machinery Manufacturing Co ltd
Current assignee: Taizhou Deji Precision Machinery Manufacturing Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-28
Anticipated expiration: 2032-11-23

Abstract

The utility model relates to an injection pump technical field just discloses injection pump drive shaft parts, include: the transmission shaft is connected with the external transmission gear, a notch is formed in the outer surface of one end of the transmission shaft, a clamping block is fixedly connected inside the notch, a first spring is fixedly connected inside the clamping block, an arc-shaped clamping ball is fixedly connected to the other end of the first spring, a clamping groove is formed in the inner side of the external transmission gear, the outer surface of the clamping block is clamped with the inside of the clamping groove, an inner groove is formed in the inner side of the clamping groove, and the outer surface of the arc-shaped clamping ball is clamped with the inside of the inner groove. This kind of injection pump transmission shaft part can effectually be connected to external drive gear to the transmission shaft on, can effectually install simultaneously and target in place, avoids appearing the problem of installation deviation, can be connected the location between transmission shaft and the external drive gear simultaneously, avoids appearing the deviation in the use, guarantees work that both can be normal.

Description

Transmission shaft component of fuel injection pump

Technical Field

The utility model relates to an injection pump technical field specifically is injection pump transmission shaft parts.

Background

The fuel injection pump is an important component of the diesel engine of the automobile, the fuel injection pump assembly is usually a whole formed by installing components such as the fuel injection pump, a speed regulator and the like together, wherein the speed regulator is a component for ensuring the low-speed operation and the limitation to the maximum rotating speed of the diesel engine and ensuring a certain relation between the injection quantity and the rotating speed, the fuel injection pump is composed of a plurality of components, and a transmission shaft component is used for connecting external components needing to rotate.

When current transmission shaft part connects outside drive gear, the mode of both pegging graft is adopted at present, whether both install in place in the unable effectual definite both of this kind of mode, after the installation simultaneously outside drive gear drive department transmission shaft during operation, the condition of deviation in the position easily appears to lead to unable effectual work, when adding lubricating oil between transmission shaft and bearing frame simultaneously, need dismantle both and just can effectual adding lubricating oil, this kind of mode troublesome poeration, be not convenient for operate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an injection pump transmission shaft part possesses can effectual connection transmission shaft and outside drive gear to and to the advantage of adding lubricating oil between transmission shaft and the bearing frame, the problem of proposing among the background art has been solved.

The utility model provides a following technical scheme: injection pump drive shaft part includes: the transmission shaft and external drive gear, the notch has been seted up to the one end surface of transmission shaft, the inside fixedly connected with fixture block of notch, the inside fixedly connected with spring I of fixture block, the other end fixedly connected with arc card ball of spring I, the draw-in groove has been seted up to external drive gear's inboard, the surface of fixture block and the inside joint of draw-in groove, the inside groove has been seted up to the inboard of draw-in groove, the surface of arc card ball and the inside joint of inside groove.

Preferably, the bearing frame has been cup jointed to the surface of transmission shaft, the inside fixedly connected with connecting pipe of bearing frame, the inner wall fixedly connected with connecting rod of connecting pipe, the inside intermediate position fixedly connected with branch of connecting rod, the articulated seat of upper end fixedly connected with of branch, the both sides of articulated seat all articulate there is the connecting plate, the lower fixed surface of connecting plate is connected with spring two, the other end of spring two is connected with the fixed surface of branch.

Preferably, the notches are provided with four groups, the outer surfaces of the transmission shafts are uniformly distributed on the four groups of notches, and the inner sides of the external transmission gears are attached to the outer surfaces of the transmission shafts.

Preferably, a slotted hole is formed in the bearing seat, one end of the connecting pipe extends into the slotted hole, an elastic check ring is fixedly connected to the inner wall of the bearing seat, the inner side of the elastic check ring is attached to the outer surface of the transmission shaft, a first rolling bearing is fixedly connected to the inner wall of the bearing seat, and the inner side of the first rolling bearing is attached to the outer surface of the transmission shaft.

Preferably, the inner wall of the bearing seat is fixedly connected with a second check ring, the inner side of the second check ring is attached to the outer surface of the transmission shaft, the inner wall of the bearing seat is fixedly connected with a second rolling bearing, the inner side of the second rolling bearing is attached to the outer surface of the transmission shaft, a framework rubber oil seal is fixedly mounted on the inner wall of the bearing seat, and the inner side of the framework rubber oil seal is attached to the outer surface of the transmission shaft.

Preferably, the width of the notch is consistent with that of the clamping groove, and the outer surface of the arc-shaped clamping ball is attached to the inner wall of the clamping block.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the oil injection pump transmission shaft component is characterized in that a clamping block, a spring I and an arc-shaped clamping ball are arranged, when a transmission shaft is connected with an external transmission gear, a clamping groove formed in the inner side of the external transmission gear is aligned with the clamping block connected with the outer surface of one end of the transmission shaft, the external transmission gear slides to enable the clamping block to be wedged with the clamping groove, in the process that the clamping block enters the inside of the clamping groove, the arc-shaped clamping ball is compressed into the inside of the clamping block through the spring I, when the clamping block is completely wedged into the inside of the clamping groove, the arc-shaped clamping ball is clamped into an inner groove formed in the inside of the clamping groove under the reverse action of the spring I, at the moment, the transmission shaft is connected with the external transmission gear, the structure is arranged, the transmission shaft can be effectively connected to the external transmission gear, meanwhile, the installation can be in place effectively, the problem of installation deviation is avoided, meanwhile, the transmission shaft and the external transmission gear can be connected and positioned, the deviation in the use process is avoided, and the normal work of the transmission shaft and the external transmission gear can be ensured.

2. This kind of injection pump drive shaft part, through setting up the connecting pipe, branch, the connecting rod, articulated seat, spring two and connecting plate, through when pouring into lubricating oil to the bearing frame is inside, because the one end of connecting pipe stretches into in the inside slotted hole of bearing frame, and articulated between two sets of connecting plates and the articulated seat, two sets of connecting plates pass through and are connected between spring two and the branch simultaneously, exert force to the connecting plate, make connecting plate not seal the connecting pipe, spring two is compressed simultaneously, accessible connecting pipe adds proper amount lubricating oil to the inside of bearing frame this moment, after lubricating oil adds, relax the power to the connecting plate, under the elastic action of spring two, make connecting plate seal the connecting pipe, under the continuous rotation of transmission shaft, make the inside lubricating oil that adds of bearing frame fill up the inside of whole bearing frame gradually, the setting of this structure, can effectually add lubricating oil between transmission shaft and the bearing frame, can continuously give the lubrication between bearing frame and the transmission shaft through lubricating oil, can improve lubricated effect, can also play the effect of cooling between bearing frame and the transmission shaft, improve its job stabilization nature, guarantee the transmission efficiency of transmission shaft.

Drawings

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

FIG. 2 is a schematic view of the connection structure between the transmission shaft and the external transmission gear of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention shown in FIG. 1;

fig. 4 is a schematic view of the internal structure of the connecting tube of the present invention.

In the figure: 1. a drive shaft; 2. a bearing seat; 3. a transmission gear is externally connected; 4. a connecting pipe; 5. a notch; 6. a clamping block; 7. a card slot; 8. a first spring; 9. an arc-shaped ball clamping; 10. an inner tank; 11. a circlip; 12. a first rolling bearing; 13. a second check ring; 14. a slot; 15. a second rolling bearing; 16. framework type rubber oil seal; 17. a strut; 18. a connecting rod; 19. a hinged seat; 20. a second spring; 21. a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 fig. 1-4, a fuel injection pump drive shaft assembly includes: the transmission shaft 1 and the external transmission gear 3, a notch 5 is formed in the outer surface of one end of the transmission shaft 1, a clamping block 6 is fixedly connected to the inside of the notch 5, a first spring 8 is fixedly connected to the inside of the clamping block 6, a first arc-shaped clamping ball 9 is fixedly connected to the other end of the first spring 8, a clamping groove 7 is formed in the inner side of the external transmission gear 3, the outer surface of the clamping block 6 is clamped with the inside of the clamping groove 7, an inner groove 10 is formed in the inner side of the clamping groove 7, the outer surface of the arc-shaped clamping ball 9 is clamped with the inside of the inner groove 10, four groups of notches 5 are uniformly distributed on the outer surface of the transmission shaft 1, the inner side of the external transmission gear 3 is attached to the outer surface of the transmission shaft 1, the width of the notch 5 is consistent with the width of the clamping groove 7, the outer surface of the arc-shaped clamping ball 9 is attached to the inner wall of the clamping block 6, the transmission shaft 1 is connected to the external transmission gear 3, the clamping block 6 is firstly, the external transmission gear 3 is slid to enable the clamping block 6 to be engaged with the clamping groove 7, in the clamping groove 7 in the process that the arc-shaped clamping ball 9 presses the inside of the clamping block 6 through the first spring 8 when the clamping ball 7 completely, and the internal clamping ball is inserted into the clamping groove 7, and the external transmission gear is reversely inserted into the clamping groove 10 of the internal clamping block 6 at the internal clamping groove 7, and the external transmission gear 7 at the internal clamping ball when the internal clamping groove 7.

Wherein; bearing frame 2 has been cup jointed to the surface of transmission shaft 1, the inside fixedly connected with connecting pipe 4 of bearing frame 2, the inner wall fixedly connected with connecting rod 18 of connecting pipe 4, the inside intermediate position fixedly connected with branch 17 of connecting rod 18, the articulated seat 19 of upper end fixedly connected with of branch 17, the both sides of articulated seat 19 all articulate there is connecting plate 21, the lower fixed surface of connecting plate 21 is connected with spring two 20, the other end of spring two 20 and the outer fixed surface of branch 17 are connected, when pouring lubricating oil into bearing frame 2 inside, because the one end of connecting pipe 4 stretches into in the inside slotted hole 14 of bearing frame 2, and articulate between two sets of connecting plate 21 and the articulated seat 19, simultaneously two sets of connecting plate 21 pass through and are connected between spring two 20 and the branch 17, exert force to connecting plate 21, make connecting plate 21 not seal connecting pipe 4, spring two 20 is compressed simultaneously, accessible connecting pipe 4 adds appropriate amount lubricating oil to the inside of bearing frame 2 this moment, after the completion is added to lubricating oil, relax the power to connecting plate 21, under the elastic action of spring two 20, make connecting plate 21 seal connecting pipe 4, under the continuous rotation of transmission shaft 1, make the inside of bearing frame 2 inside of adding lubricating oil gradually fill up whole bearing frame 2.

Wherein; a slotted hole 14 is formed in the bearing seat 2, one end of a connecting pipe 4 extends into the slotted hole 14, an elastic check ring 11 is fixedly connected to the inner wall of the bearing seat 2, the inner side of the elastic check ring 11 is attached to the outer surface of the transmission shaft 1, a rolling bearing 12 is fixedly connected to the inner wall of the bearing seat 2, the inner side of the rolling bearing 12 is attached to the outer surface of the transmission shaft 1, a check ring II 13 is fixedly connected to the inner wall of the bearing seat 2, the inner side of the check ring II 13 is attached to the outer surface of the transmission shaft 1, a rolling bearing II 15 is fixedly connected to the inner wall of the bearing seat 2, the inner side of the rolling bearing II 15 is attached to the outer surface of the transmission shaft 1, a skeleton-type rubber oil seal 16 is fixedly mounted on the inner wall of the bearing seat 2, and the inner side of the skeleton-type rubber oil seal 16 is attached to the outer surface of the transmission shaft 1.

Working principle, in use, firstly, when pouring lubricating oil into bearing frame 2 inside, because the one end of connecting pipe 4 stretches into in the slotted hole 14 of bearing frame 2 inside, and articulated between two sets of connecting plates 21 and articulated seat 19, two sets of connecting plates 21 pass through and are connected between spring two 20 and branch 17 simultaneously, exert force to connecting plate 21, make connecting plate 21 not close connecting pipe 4, spring two 20 is compressed simultaneously, accessible connecting pipe 4 adds appropriate amount lubricating oil to the inside of bearing frame 2 this moment, after lubricating oil adds the completion, relax the power to connecting plate 21, under the elastic action of spring two 20, make connecting plate 21 close connecting pipe 4, under the continuous rotation of transmission shaft 1, make the inside lubricating oil that adds of bearing frame 2 fill up the inside of whole bearing frame 2 gradually.

Then the transmission shaft 1 is connected to the external transmission gear 3, firstly, the clamping groove 7 formed in the inner side of the external transmission gear 3 is aligned to the clamping block 6 connected with the outer surface of one end of the transmission shaft 1, the external transmission gear 3 slides to enable the clamping block 6 to be wedged with the clamping groove 7, the arc-shaped clamping ball 9 is pressed into the clamping block 6 through the spring I8 in the process that the clamping block 6 enters the clamping groove 7, when the clamping block 6 is completely wedged into the clamping groove 7, the arc-shaped clamping ball 9 is clamped into the inner groove 10 formed in the clamping groove 7 under the reverse action of the spring I8, at the moment, the transmission shaft 1 is connected with the external transmission gear 3, and at the moment, transmission work can be carried out.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Injection pump driving shaft part, its characterized in that includes: transmission shaft (1) and external drive gear (3), notch (5) have been seted up to the one end surface of transmission shaft (1), the inside fixedly connected with fixture block (6) of notch (5), the inside fixedly connected with spring (8) of fixture block (6), the other end fixedly connected with arc card ball (9) of spring (8), draw-in groove (7) have been seted up to the inboard of external drive gear (3), the surface of fixture block (6) and the inside joint of draw-in groove (7), inside groove (10) have been seted up to the inboard of draw-in groove (7), the surface of arc card ball (9) and the inside joint of inside groove (10).

2. The fuel injection pump driveshaft assembly of claim 1, wherein: bearing frame (2) have been cup jointed to the surface of transmission shaft (1), inside fixedly connected with connecting pipe (4) of bearing frame (2), the inner wall fixedly connected with connecting rod (18) of connecting pipe (4), inside intermediate position fixedly connected with branch (17) of connecting rod (18), the articulated seat of upper end fixedly connected with (19) of branch (17), the both sides of articulated seat (19) all articulate there is connecting plate (21), the lower fixed surface of connecting plate (21) is connected with spring two (20), the other end of spring two (20) is connected with the fixed surface of branch (17).

3. The fuel injection pump driveshaft assembly of claim 1, wherein: the notch (5) are provided with four groups, the outer surfaces of the transmission shafts (1) are uniformly distributed on the four groups of notches (5), and the inner sides of the external transmission gears (3) are attached to the outer surfaces of the transmission shafts (1).

4. The fuel injection pump drive shaft assembly of claim 2, further characterized by: slotted hole (14) have been seted up to the inside of bearing frame (2), the one end of connecting pipe (4) extends into the inside of slotted hole (14), the inner wall fixedly connected with circlip (11) of bearing frame (2), the inboard surface laminating with transmission shaft (1) of circlip (11), the inner wall fixedly connected with antifriction bearing (12) of bearing frame (2), the inboard surface laminating with transmission shaft (1) of antifriction bearing (12).

5. The fuel injection pump drive shaft assembly of claim 2, further characterized by: the inner wall fixedly connected with retaining ring two (13) of bearing frame (2), the inboard surface laminating with transmission shaft (1) of retaining ring two (13), the inner wall fixedly connected with antifriction bearing two (15) of bearing frame (2), the inboard surface laminating with transmission shaft (1) of antifriction bearing two (15), the inner wall fixed mounting of bearing frame (2) has skeleton formula rubber oil blanket (16), the inboard surface laminating with transmission shaft (1) of skeleton formula rubber oil blanket (16).

6. The fuel injection pump drive shaft assembly of claim 1, further characterized by: the width of the notch (5) is consistent with that of the clamping groove (7), and the outer surface of the arc-shaped clamping ball (9) is attached to the inner wall of the clamping block (6).