CN204700044U - A kind of punch quick-change coupling - Google Patents

Abstract

The utility model discloses a kind of punch quick-change coupling, it comprises driving gear disc, driven fluted disc, the connecting bolt connecting driving and driven fluted disc and projection, and described driving and driven fluted disc profile of tooth is non-rectangle tooth.Compared with prior art, the beneficial effects of the utility model are: structure is simple, and number of parts is few, change the punch roller time short, without relative movement between conical tooth, have auto-lock function, usually without the need to fastening, and the advantages such as wear extent is little.

Description

A kind of punch quick-change coupling

Technical field

The utility model relates to a kind of punch shaft coupling, particularly a kind of punch quick-change coupling.

Background technology

In production, the universal-joint spindle transmission adopted at present is complicated, uses middle tender more.As shown in Fig. 4, Fig. 5, Fig. 6,120 end-tooth combination transmitting torques, the pressure angle of end-tooth 40 degree, although the registration of 120 pairs of teeth has tighter form and position tolerance, the registration of actual new end-tooth is difficult to more than 30%, increases to some extent along with wearing and tearing increase; End-face coupling difficulty is large, cannot again reprocess after wearing and tearing and broken teeth.Owing to being difficult to ensure that whole 120 teeth are all for transmitting torque, so work in actual transfer torque range, also can usually occur beating tooth, reach five teeth or continuous three teeth when beating number of teeth amount, this end-tooth flange just should be changed and scrap.

Owing to being end-tooth connection, for ensureing conveniently to have employed 40 ° of pressure angles to tooth, and 40 ° of far super Self-locking angles that transmit, in the process of transmission, moment of torsion can be assigned to the separating force axially becoming flange, the limiting value of this power is 75 tons, so connect the 8.8 grades of high-strength bolts that have employed 18 M36, need dismounting and assemble these securing members when changing roll, because region is narrow, be awkward, the time changing punch roller is each time 10 ~ 12 hours, produce intermediate demand and check bolt elasticity at any time, and it is fastening in time, the service life of whole securing member is twice, if nurse ineffective or bolt fracture, power transmission shaft is thrown away and may be caused power transmission shaft, the severe and great casualty that reductor and peripheral equipment damage.

Summary of the invention

The utility model provides that a kind of structure is simple, number of parts is few, changes punch roller time short quick change Hooks coupling universal coupling for solving in known technology the technical problem that exists.

The technical scheme that the utility model is taked for the technical problem existed in solution known technology is:

A kind of punch quick-change coupling, comprising: driving gear disc, driven fluted disc, connecting bolt and projection, described driving and driven fluted disc profile of tooth is conical tooth.

Described driving and driven fluted disc is fixed with projection.

The beneficial effects of the utility model are: it is simple that (1) the utility model has structure, number of parts is few, connecting bolt is reduced to 8 by original 18, decreasing the time of removing with installing connecting bolt, making the replacing punch roller time be reduced to 4 hours by original 10 hours.(2) driving and driven fluted disc tooth Shape Design is taper by the utility model, and the frictional force in transmission process between conical tooth is greater than axial thrust load, and without relative movement between cone tooth, have self-lock ability, wear extent is little, usually without the need to the advantage such as fastening.(3) the utility model is provided with projection on driving and driven fluted disc, and when shaft coupling engages, centering quick and precisely.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation.

Fig. 2 is the A-A profile of Fig. 1.

Fig. 3 is the K direction view of Fig. 2.

Fig. 4 is original roll end-tooth figure.

Fig. 5 is that roll end-tooth connects Local map.

Fig. 6 is that the A of Fig. 5 is to zoomed-in view.

In figure: 1-120 tooth, 2-connecting bolt, the driven fluted disc of 3-, 4-driving gear disc, 5-projection.

Detailed description of the invention

By reference to the accompanying drawings the utility model is described in further detail now.

As shown in Figure 1, punch quick-change coupling, it comprises driving gear disc 4, driven fluted disc 3, the connecting bolt 2 connecting driving and driven fluted disc and projection 5, and described driving and driven fluted disc profile of tooth is conical tooth, and described driving and driven fluted disc is fixed with projection 5.Changed roll when needing engagement, passed by driving end fluted disc by bracket, the engagement of driving and driven fluted disc, shaft coupling is in engagement state.During dismounting roll, oppositely passed by bracket, promote driving cog disk detachment, driving and driven fluted disc is in released state.

Claims (2)

1. punch quick-change coupling, comprises driving gear disc (4), driven fluted disc (3), the connecting bolt (2) connecting driving and driven fluted disc and projection (5), it is characterized in that: described driving and driven fluted disc profile of tooth is conical tooth.

2. punch quick-change coupling as claimed in claim 1, is characterized in that: described driving and driven fluted disc is fixed with projection (5).