CN211692596U - Assembled camshaft - Google Patents

Abstract

The utility model discloses an assembled camshaft relates to engine accessory equipment field, including the camshaft part, the cam part's outside cup joints and is connected with the cam part, and the inner wall of cam part is connected with the outer wall laminating of camshaft part, and spacing spout has been seted up to the outer wall of cam part, and the spacing slider of inner wall fixedly connected with of cam part, spacing slider and spacing spout looks adaptation just are located spacing spout, and sealed recess has been seted up to spacing slider's inner wall bottom, is provided with buffer in the sealed recess, and buffer includes sealing piston. The utility model discloses a be provided with buffer in sealed recess, seted up spacing jack in spacing slider's one end, spacing inserted bar and spacing jack looks adaptation just are located spacing jack in, therefore spacing inserted bar tightly laminates with spacing jack under the effect of centrifugal force when this device rotates to centrifugal force is laminated more closely more greatly, has effectively avoided the possibility that camshaft component and cam part break away from.

Description

Assembled camshaft

Technical Field

The utility model relates to an engine accessory equipment field, in particular to assembled camshaft.

Background

The camshaft is one of the key parts of the engine, the hardness of the camshaft top part and the depth of the white layer are key technical indexes for determining the service life of the camshaft and the efficiency of the engine, and the camshaft has better cutting processing performance by considering that the shaft neck does not have higher carbide on the premise of ensuring that the camshaft has enough high hardness and a quite deep white layer. The cam can produce great centrifugal force and vibrations when rotating because its structure itself, and traditional cam uses key or locating pin to fix cam and camshaft, but long-time work makes key or locating pin easily become flexible or even drop because of vibrations for become flexible between cam and the camshaft, has great danger. Therefore, it is necessary to provide an assembled camshaft to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an assembled camshaft to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an assembled camshaft comprises a camshaft component, wherein the outer side of the camshaft component is connected with a cam component in a sleeved mode, the inner wall of the cam component is connected with the outer wall of the camshaft component in a fitting mode, the outer wall of the camshaft component is provided with a limiting sliding groove, the inner wall of the cam component is fixedly connected with a limiting sliding block, the limiting sliding block is matched with the limiting sliding groove and is located in the limiting sliding groove, the bottom end of the inner wall of the limiting sliding block is provided with a sealing groove, a buffering device is arranged in the sealing groove and comprises a sealing piston, the middle part of the upper end face of the sealing piston is fixedly connected with a limiting insertion rod, one end, far away from the cam component, of the limiting sliding block is provided with a limiting insertion hole, the upper end of the limiting insertion rod is matched with, the sealing groove is annularly formed in the middle of the side wall of the sealing piston, a sealing ring is connected in the sealing groove in an adhering mode, the sealing ring is connected with the inner side wall of the sealing groove in an adhering mode, a thrust spring is arranged at the lower end of the inner cavity of the sealing groove, and two ends of the thrust spring are fixedly connected with the lower end face of the sealing piston and the inner wall of the bottom end of the sealing groove respectively.

Preferably, the limiting sliding grooves and the limiting sliding blocks are both provided in a plurality, the limiting sliding grooves are distributed in an annular array mode in the circumferential direction of the cam shaft component, and the limiting sliding blocks are distributed in an annular array mode in the circumferential direction of the cam component.

Preferably, the sealing groove and the limiting insertion hole are both provided with two, and the upper end of the limiting insertion rod and the bottom end of the inner wall of the limiting insertion hole are both arc-shaped.

Preferably, an outer flange is fixedly sleeved on the outer side of the cam shaft part, the outer flange is positioned on one side of the cam part, and a buffer layer is connected to one side, close to the cam part, of the outer flange in an adhering mode.

Preferably, one side that the outer flange was kept away from to the buffer layer is connected with the laminating of one side of cam part, one side and the laminating of one side inner wall of spacing spout of spacing slider are connected.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be provided with buffer in sealed recess, seted up spacing jack at the one end of spacing slider, spacing inserted bar and spacing jack looks adaptation and lie in spacing jack, therefore spacing inserted bar is tightly laminated with spacing jack under the effect of centrifugal force when this device rotates, and centrifugal force is bigger laminating more closely, has effectively avoided the possibility that camshaft part and cam part break away from;

2. the utility model discloses a lower extreme at sealed piston is provided with thrust spring, is provided with the sealing washer at sealed piston's lateral wall, and the sealing washer is connected with the laminating of sealed recess inner wall for thereby sealed recess inner chamber forms to seal has damped effect, and the effect of deuterogamying thrust spring cushions the vibrations that produce when rotating that the effect can be fine, makes spacing inserted bar be difficult for rocking.

Drawings

Fig. 1 is a schematic view of the overall structure section of the present invention.

Fig. 2 is an enlarged schematic view of a structure shown in fig. 1 according to the present invention.

Fig. 3 is the utility model discloses spacing spout structure side cut open schematic diagram.

In the figure: 1. a camshaft member; 2. a cam member; 3. a limiting chute; 4. a limiting slide block; 5. sealing the groove; 6. a buffer device; 7. a sealing piston; 8. a limiting inserted rod; 9. limiting the jacks; 10. a limiting flange; 11. a sealing groove; 12. a seal ring; 13. a thrust spring; 14. an outer flange; 15. a buffer layer.

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.

The utility model provides an assembled camshaft as shown in figures 1-3, which comprises a camshaft component 1, the outer side of the camshaft component 1 is sleeved and connected with a cam component 2, the inner wall of the cam component 2 is jointed and connected with the outer wall of the camshaft component 1, the outer wall of the camshaft component 1 is provided with a limit chute 3, the inner wall of the cam component 2 is fixedly connected with a limit slider 4, the limit chutes 3 and the limit sliders 4 are respectively provided with a plurality of blocks, the limit chutes 3 are distributed in an annular array manner in the circumferential direction of the camshaft component 1, the limit sliders 4 are distributed in an annular array manner in the circumferential direction of the cam component 2, the limit sliders 4 are matched with the limit chutes 3 and are positioned in the limit chutes 3, the inner side wall of the limit chute 3 is jointed and connected with the side wall of the limit slider 4, and limit the relative rotation between the camshaft component 1, set up a plurality of spacing spouts 3 and spacing slider 4 and can guarantee that the laminating is inseparabler between spacing spout 3 and the spacing slider 4, and spacing effect is better to can cup joint cam part 2 in the outside of camshaft part 1 through sliding spacing slider 4 in spacing spout 3.

Furthermore, a sealing groove 5 is formed in the bottom end of the inner wall of the limiting slide block 4, a buffer device 6 is arranged in the sealing groove 5, the buffer device 6 comprises a sealing piston 7, a limiting insertion rod 8 is fixedly connected to the middle of the upper end face of the sealing piston 7, a limiting insertion hole 9 is formed in one end, away from the cam component 2, of the limiting slide block 4, two sealing grooves 5 and two limiting insertion holes 9 are arranged, the upper end of the limiting insertion rod 8 and the bottom end of the inner wall of the limiting insertion hole 9 are both arranged in an arc shape, the cam component 2 is more convenient to install due to the limiting insertion rod 8 arranged in the arc shape, the upper end of the limiting insertion rod 8 is matched with the limiting insertion hole 9 and is positioned in the limiting insertion hole 9, so that the sealing piston 7 can slide in the sealing groove 5, the limiting insertion rod 8 is driven to move and be inserted into the limiting, avoid cam part 2 to slide on cam shaft part 1's axial direction to centrifugal force that produces when cam shaft part 1 rotates can tightly laminate the inner wall at spacing jack 9 with the upper end of spacing inserted bar 8, and centrifugal force is big more, and spacing inserted bar 8 is inseparabler with the laminating of spacing jack 9, has effectively avoided the possibility that spacing inserted bar 8 breaks away from in the spacing jack 9, makes the steady cup joint of cam part 2 can not take place to slide in cam shaft part 1's the outside.

Secondly, the inner wall of the upper end of the sealing groove 5 is fixedly connected with a limiting flange 10, the arrangement of the limiting flange 10 can avoid the sealing piston 7 from being separated from the inner cavity of the sealing groove 5, the middle part of the side wall of the sealing piston 7 is annularly provided with a sealing groove 11, a sealing ring 12 is connected in the sealing groove 11 in an adhesive manner, the sealing ring 12 is connected with the inner wall of the sealing groove 5 in an attaching manner, the lower end of the inner cavity of the sealing groove 5 is provided with a thrust spring 13, two ends of the thrust spring 13 are respectively fixedly connected with the lower end surface of the sealing piston 7 and the inner wall of the bottom end of the sealing groove 5, the arrangement of the sealing ring 12 enables the inner cavity of the sealing groove 5 to form a sealing structure, therefore, when the sealing piston 7 slides in the sealing groove 5, the air volume in the inner cavity of the sealing groove 5 can be changed, so that the limiting inserted rod 8 is not easy to shake.

Moreover, outer flange 14 is fixedly sleeved on the outer side of camshaft component 1, outer flange 14 is located one side of cam component 2, one side of outer flange 14 close to cam component 2 is connected with buffer layer 15 in an adhering mode, one side of buffer layer 15 far away from outer flange 14 is connected with one side of cam component 2 in an adhering mode, one side of limiting sliding block 4 is connected with one side of inner wall of limiting sliding groove 3 in an adhering mode, sliding of cam component 2 can be further limited through arrangement of outer flange 14, buffer layer 15 has a buffering effect, and cam component 2 is not prone to shaking in the axial direction of camshaft component 1.

The utility model discloses the theory of operation:

when the installation is carried out, the limiting sliding block 4 on the cam component 2 is aligned to the limiting sliding groove 3 on the cam shaft component 1, the cam component 2 is sleeved on the outer side of the cam shaft component 1 by sliding the cam component 2 along the axial direction of the cam shaft component 1, when one side of the limiting sliding block 4 is contacted with the upper end of the limiting insertion rod 8, the upper end of the limiting insertion rod 8 is set to be arc-shaped, the limiting sliding block 4 extrudes the upper end of the limiting insertion rod 8 to enable the limiting insertion rod 8 to slide into the sealing groove 5 and drive the thrust spring 13 to shrink, the cam component 2 slides until one side of the limiting sliding block 4 is attached to the buffer layer 15, at the moment, the two limiting insertion holes 9 are just right opposite to the two limiting insertion rods 8, and the;

centrifugal force that produces when this device rotates makes sealed piston 7 and spacing inserted bar 8 remove towards the direction of keeping away from camshaft part 1 for spacing inserted bar 8 can be inseparabler and spacing jack 9 laminating be in the same place, can effectively avoid spacing inserted bar 8 and spacing jack 9 to break away from, secondly because of the sealed effect that has the damped of the inner chamber of sealed recess 5, and the cushioning effect of deuterogamying thrust spring 13 can effectively avoid rocking of spacing inserted bar 8.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. An assembled camshaft comprising a camshaft member (1), characterized in that: the outer side of the cam shaft component (1) is connected with a cam component (2) in a sleeved mode, the inner wall of the cam component (2) is connected with the outer wall of the cam shaft component (1) in a fitted mode, a limiting sliding groove (3) is formed in the outer wall of the cam shaft component (1), a limiting sliding block (4) is fixedly connected to the inner wall of the cam component (2), the limiting sliding block (4) is matched with the limiting sliding groove (3) and located in the limiting sliding groove (3), a sealing groove (5) is formed in the bottom end of the inner wall of the limiting sliding block (4), a buffering device (6) is arranged in the sealing groove (5), the buffering device (6) comprises a sealing piston (7), a limiting insertion rod (8) is fixedly connected to the middle of the upper end face of the sealing piston (7), and a limiting insertion hole (9) is formed, the upper end of spacing inserted bar (8) just is located spacing jack (9) with spacing jack (9) looks adaptation, the upper end inner wall fixedly connected with limit flange (10) of sealed recess (5), seal groove (11) have been seted up to the lateral wall middle part annular of sealed piston (7), bonding connection has sealing washer (12) in seal groove (11), sealing washer (12) are connected with the inside wall laminating of sealed recess (5), the inner chamber lower extreme of sealed recess (5) is provided with thrust spring (13), the both ends of thrust spring (13) respectively with the lower terminal surface of sealed piston (7) and the bottom inner wall fixed connection of sealed recess (5).

2. An assembled camshaft as claimed in claim 1, wherein: the limiting sliding grooves (3) and the limiting sliding blocks (4) are both provided with a plurality of limiting sliding grooves (3), the limiting sliding grooves (3) are distributed in an annular array mode in the circumferential direction of the cam component (1), and the limiting sliding blocks (4) are distributed in an annular array mode in the circumferential direction of the cam component (2).

3. An assembled camshaft as claimed in claim 1, wherein: sealed recess (5) and spacing jack (9) all are provided with two, the upper end of spacing inserted bar (8) and the inner wall bottom of spacing jack (9) all set up to the arc.

4. An assembled camshaft as claimed in claim 1, wherein: the outer flange (14) is fixedly sleeved on the outer side of the cam shaft part (1), the outer flange (14) is located on one side of the cam part (2), and a buffer layer (15) is connected to one side, close to the cam part (2), of the outer flange (14) in an adhering mode.

5. An assembled camshaft as claimed in claim 4, wherein: one side that outer flange (14) was kept away from in buffer layer (15) is connected with the laminating of one side of cam part (2), the laminating of one side and the one side inner wall of spacing spout (3) of spacing slider (4) is connected.

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