CN206539676U

CN206539676U - Centrifugal device based on camshaft

Info

Publication number: CN206539676U
Application number: CN201720193894.XU
Authority: CN
Inventors: 杜江
Original assignee: Auspicious Mound Machinery Ltd Co Of Chongqing City
Current assignee: Auspicious Mound Machinery Ltd Co Of Chongqing City
Priority date: 2017-02-28
Filing date: 2017-02-28
Publication date: 2017-10-03
Anticipated expiration: 2027-02-28

Abstract

The utility model is related to field of mechanical technique, discloses a kind of centrifugal device based on camshaft, including：Camshaft, fluted disc, torsion spring, centrifuge arm, two symmetrically arranged first bearings and the second bearing on guide finger and fluted disc, fluted disc is located at one end of camshaft, and it is vertical with the camshaft, centrifuge arm is in bending structure twice, make centrifuge arm that there is integrally formed first trailing arm, transverse arm and the second trailing arm, first trailing arm is respectively formed with through hole close to the end of one end of the transverse arm and the second trailing arm, the line of centres of two through holes is parallel to the transverse arm, the other end of first trailing arm connects the camshaft, guide finger one end is fixed on fluted disc, the other end sequentially passes through the first bearing, through hole on first trailing arm, the main body of torsion spring, through hole and the second bearing on second trailing arm, first elongated end of torsion spring connects first trailing arm, second elongated end is connected on the second bearing.Camshaft exocentric structure of the present utility model is simple, and material consumption is smaller, and production cost is low.

Description

Centrifugal device based on camshaft

Technical field

The utility model is related to frame for movement technical field, more particularly to a kind of centrifugal device based on camshaft.

Background technology

Existing camshaft exocentric structure as illustrated in fig. 1 and 2, including：Camshaft 100, centrifuge arm 200, decompression block 300, subtract Briquetting rivet 400, guide finger 500, plastic clip 600, extension spring 700 and fluted disc 800.The meeting when camshaft 100 rotates of centrifuge arm 200 Overcome the pulling force of extension spring 700 to move out and drive decompression block 300 to rotate.The camshaft exocentric structure, which is that big inserts is plastic, to be added The material consumption of the fluted disc 800 of work, metal cam axle 100 and plastic material is larger, and centrifugal mechanism is complex, and production is difficult Spend big cost high.

In addition, as seen in figures 3-5, camshaft 100 includes：Shaft core 101, the first cam 102, the second cam 103 and fluted disc 800 connecting portion 104.The connecting portion 104 of fluted disc 800 all be use corner star structure, radial direction length more than two Individual cam, size is larger.When making, the diameter of blank is greater than the diagonal of corner star, therefore, raw material wave during processing Take larger, cost is high, difficulty of processing is big.And when injection forms fluted disc 800 in order to prevent fluted disc 800 to be axially moveable, tooth Disk 800 wants the connecting portion 104 of fully wrapped around corner star structure, and shaping difficulty is larger.

Utility model content

The utility model proposes a kind of camshaft, exocentric structure complexity, raw material consumptive material in the prior art are solved big, raw Produce the problem of cost is high.

A kind of camshaft centrifugal device of the present utility model, including：Camshaft, fluted disc, torsion spring, centrifuge arm, guide finger and Two symmetrically arranged first bearings and the second bearing on fluted disc, the fluted disc be located at the camshaft one end, and with it is described Camshaft is vertical, the centrifuge arm in bending structure twice, make the centrifuge arm have integrally formed first trailing arm, transverse arm and Second trailing arm, the first trailing arm is respectively formed with through hole close to the end of one end of the transverse arm and the second trailing arm, two through holes The line of centres connects the camshaft parallel to the transverse arm, the other end of the first trailing arm, and described guide finger one end is fixed on tooth On disk, the other end sequentially passes through the first bearing, the through hole on the first trailing arm, the main body of torsion spring, the through hole on the second trailing arm and Two bearings, the first elongated end of the torsion spring connects first trailing arm, and the second elongated end is connected on the second bearing.

Wherein, the region between the first bearing and the second bearing is located on the fluted disc and is formed with width more than the transverse arm Hole.

Wherein, one end of the shaft core of the camshaft has been radially formed protuberance, the first cam of camshaft and second Projection of the cam in the plane perpendicular to shaft core covers the projection of the protuberance on the plane.

Wherein, the protuberance is to be integrally formed along the circumferential annular protrusion of shaft core, and with the shaft core.

Wherein, the side wall of the shaft core is formed with least one groove, and the groove is communicated to the protuberance.

Wherein, the side wall of the shaft core is formed with two grooves, axisymmetrical of two grooves along shaft core.

Camshaft centrifugal device of the present utility model it is simple in construction, material consumption is smaller, and light weight, production cost is low.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid Put, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of existing front view of camshaft exocentric structure；

Fig. 2 is Fig. 1 top view；

Fig. 3 is the camshaft front view of Fig. 1 camshaft centrifugal device；

Fig. 4 is Fig. 3 upward view；

Fig. 5 is the camshaft of camshaft centrifugal device of the present utility model and the connection diagram of fluted disc.

Fig. 6 is a kind of front view of camshaft centrifugal device of the present utility model；

Fig. 7 is Fig. 6 top view

Fig. 8 is the camshaft front view of Fig. 6 camshaft centrifugal device；

Fig. 9 is Fig. 8 upward view；

Figure 10 is the camshaft of camshaft centrifugal device of the present utility model and the connection diagram of fluted disc.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

The camshaft centrifugal device of the present embodiment as shown in Figures 6 and 7, including：Camshaft 1, fluted disc 6, torsion spring 4, centrifuge arm 2nd, two symmetrically arranged bearings 52 of first bearing 51 and second on guide finger 3 and fluted disc 6.Fluted disc 6 is located at the one of camshaft 1 End, and be vertically arranged with camshaft 1, centrifuge arm 2 makes centrifuge arm 2 have integrally formed first trailing arm in bending structure twice 21st, the trailing arm 23 of transverse arm 22 and second, the first trailing arm 21 is respectively formed with close to the end of one end of transverse arm 22 and the second trailing arm 23 Through hole, the line of centres of two through holes is parallel to transverse arm 22, the other end connection camshaft 1 of the first trailing arm 21.The one end of guide finger 3 Be fixed on fluted disc 6, the other end sequentially pass through the first bearing 51, the through hole on the first trailing arm 21, the main body of torsion spring 4, second indulge Through hole and the second bearing 52 on arm 23, the first elongated end of torsion spring 4 connect the first trailing arm 21, and the second elongated end is connected to second On bearing 52.

During work, centrifuge arm 2 is when product (the ratcheting part with fluted disc 6) rotates because centrifugal action overcomes the pre- of torsion spring 4 Clamp force rotates around guide finger 3, for example：When the rotating speed of camshaft 1 reaches 5000 revs/min, centrifuge arm 2 can overcome torsion spring 4 to rotate, I.e. transverse arm 22 can be rotated and is subjected to displacement, by transverse arm 22 and outside part to be controlled (such as：Valve, can pass through speed control valve The different aperture of door) connection, to control external component.The structure of the camshaft centrifugal device of the present embodiment is relative to existing structure Simpler, material consumption is smaller, and light weight, production cost is low, in the case where not influenceing the overall using effect of product, manufacture Cost reduction about 20%.

Width is formed with the present embodiment, on fluted disc 6 positioned at the region between the first bearing 51 and the second bearing 52 to be more than The hole of transverse arm 22, is to concede space when transverse arm 22 is rotated, it is not necessary to by the first bearing 51 and the second bearing 52 do it is too high so that For the product saving space matched with the camshaft centrifugal device.

As shown in figs. 8-10, one end of the shaft core 11 of camshaft 1 has been radially formed protuberance 14, as shown in figure 9, the The projection of one cam 12 and the second cam 13 in the plane perpendicular to shaft core 11 covering protuberance 14 is on the plane Projection, that is, say that protuberance 14 radially will not stretch out the first cam 12 and the second cam 13 in shaft core 11.Protuberance 14 is remote Less than existing corner star structure, therefore the blank small volume of the camshaft of the present embodiment is processed, raw materials consumption is smaller, Production cost is lower.

In the present embodiment, protuberance 14 is to be integrally formed along the circumferential annular protrusion of shaft core, and with the shaft core, annular Protuberance 14, which is easy to make, to be molded, and makes when being connected with fluted disc 6 the whole uniform force of fluted disc 8.

The side wall of shaft core 11 is formed with least one groove 15, and groove 15 is communicated to protuberance 14.Such as the institutes of Fig. 8 and 10 Show, a retaining structure is formed between the upper edge of groove 15 and following protuberance 14, increase and the side of shaft core 11 after fluted disc 6 is installed The friction of wall, it is to avoid fluted disc 6 by the power of the axis direction along shaft core 11 it is too big when occur axial displacement.It is molded and is formed in fluted disc 6 When do not need fully wrapped around whole protuberance 14, save plastic material, and the structure of this screens is easier injection.

The side wall of shaft core 11 is formed with two grooves 15, and axisymmetrical of two grooves 15 along shaft core 11 makes fluted disc 6 by axle The power in line direction is more uniform, further avoid fluted disc 6 by the side force of the axis direction along shaft core 11 it is too big when occur axially Displacement.

Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model Within the scope of shield.

Claims

1. a kind of centrifugal device based on camshaft, it is characterised in that including：Camshaft, fluted disc, torsion spring, centrifuge arm, guide finger And two symmetrically arranged first bearings and the second bearing on fluted disc, the fluted disc be located at the camshaft one end, and with institute State camshaft vertical, the centrifuge arm makes the centrifuge arm have integrally formed first trailing arm, transverse arm in bending structure twice With the second trailing arm, the first trailing arm is respectively formed with through hole, two through holes close to the end of one end of the transverse arm and the second trailing arm The line of centres parallel to the transverse arm, the other end of the first trailing arm connects the camshaft, and described guide finger one end is fixed on On fluted disc, the other end sequentially pass through the first bearing, the through hole on the first trailing arm, the main body of torsion spring, the through hole on the second trailing arm and Second bearing, the first elongated end of the torsion spring connects first trailing arm, and the second elongated end is connected on the second bearing.

2. a kind of centrifugal device based on camshaft as claimed in claim 1, it is characterised in that be located at first on the fluted disc Region between bearing and the second bearing is formed with the hole that width is more than the transverse arm.

3. a kind of centrifugal device based on camshaft as claimed in claim 1 or 2, it is characterised in that the axle of the camshaft One end of core has been radially formed protuberance, the throwing of the first cam and the second cam of camshaft in the plane perpendicular to shaft core Shadow covers the projection of the protuberance on the plane.

4. a kind of centrifugal device based on camshaft as claimed in claim 3, it is characterised in that the protuberance is along shaft core Circumferential annular protrusion, and it is integrally formed with the shaft core.

5. a kind of centrifugal device based on camshaft as claimed in claim 4, it is characterised in that the side wall of the shaft core is formed There is at least one groove, and the groove is communicated to the protuberance.

6. a kind of centrifugal device based on camshaft as claimed in claim 5, it is characterised in that the side wall of the shaft core is formed There are two grooves, axisymmetrical of two grooves along shaft core.