CN206122340U - Connection structure of roll and roll axle - Google Patents

Abstract

The utility model discloses a connection structure of roll and roll axle belongs to machining manufacturing field, the utility model discloses a roll, roll axle and the cover that rises, roll and roll axle link to each other through the cover that rises, and the cover that rises constitutes the hollow cylinder structure including lateral wall and inside wall, lateral wall and inside wall. The utility model discloses a predominant use is a fit clearance of effectively eliminating roll and roll axle, improves the assembly precision, and simultaneously, easy to assemble and dismantlement reduces intensity of labour in assembling process.

Description

A kind of attachment structure of roll and roll mandrel

Technical field

This utility model belongs to field of machining and machinebuilding technology, more particularly, it relates to the connection of a kind of roll and roll mandrel Structure.

Background technology

In machine driving, roll couples and transmit power with roll mandrel assembling generally to be carried out using general flat key, key Gapless connection to assembling quality and transmission condition（Whether there is shock and produce vibration, noise etc.）It is particularly significant, however, assembling It is middle to realize, without being very difficult with gap transmission, coordinating slightly pine to produce impact noise, vibration etc. using flat key form, it Machinery can be directly damaged, reduce its service life, and dismantlement work is also inconvenient, improves the labor intensity of workman.Therefore, with The progress of science and technology, roll is eliminated and is more and more realized by ringfeder form with the fit-up gap of roll mandrel.

Jing is retrieved, China Patent No.：982078625, authorized announcement date be on October 06th, 1999, invention and created name For：A kind of Combined plane key, this application case discloses a kind of Combined plane key, and the Combined plane key includes major key, auxiliary bond, in main strong side Band 1 is provided with the A of top:The step surface of 1 00 gradients, and it also is provided with 1 with major key corresponding section on auxiliary bond:100 inclined-plane.Its Advantage is simple structure, easy to loading and unloading, low cost, is capable of achieving and meets axle and the needs of the gapless driving of wheel.But this application Case is disadvantageous in that：Combined plane key in this application case can loosen after long-term use, it is impossible to meet axle with wheel continuously The needs of gap transmission.

China Patent No.：2015204794965, authorized announcement date is on December 16th, 2015, and invention and created name is：One New centering ringfeder is planted, this application case discloses a kind of new centering ringfeder, belongs to centralizer technical field.In this application case Centering ringfeder, including spring, ringfeder centering machine, ringfeder, the spring is arranged in the wall of the ringfeder side, and the ringfeder is determined Concentric mechanism is made up of the ringfeder that three cross section central angles are 120 degree, and this application case adopts taper hole structure, by existing centering ringfeder 3 deciles are equally divided into, are then fixed by spring, the size of ringfeder is controlled by the tensioner of spring, it is existing fixed to solve The problem of heart ringfeder fatigue fracture.But this application case is disadvantageous in that：Centering ringfeder dismounting in this application case is difficult.

Utility model content

1. the utility model technical problem to be solved

The purpose of this utility model is to overcome general flat key and ringfeder in prior art to be difficult to eliminate roll and roll mandrel Fit clearance, and the deficiency such as installing/dismounting difficulty, there is provided the attachment structure of a kind of roll and roll mandrel, using this practicality New technical scheme, can effectively eliminate the fit clearance of roll and roll mandrel, improve assembly precision, and prolonged mechanical part makes With the life-span, meanwhile, installation and removal are also convenient in assembling process, reduce labor intensity.

2. technical scheme

To reach above-mentioned purpose, the technical scheme that this utility model is provided is：

The attachment structure of a kind of roll of the present utility model and roll mandrel, including roll, roll mandrel and ringfeder, described rolls Roller is connected with roll mandrel by ringfeder, and described ringfeder includes lateral wall and medial wall, and described lateral wall and medial wall is constituted Hollow cylindrical structure, wherein, described lateral wall includes the first lateral wall and the second lateral wall, first lateral wall and second Lateral wall is by rounding transition, and the diameter of first lateral wall is less than the diameter of the second lateral wall, wherein, described first Symmetrically arranged lug handle is outward extended with lateral wall, it is circumferentially arranged on the second described lateral wall to have a circle arc recessed Groove, second lateral wall is engaged with above-mentioned roll, and described medial wall is engaged with above-mentioned roll mandrel, and the medial wall includes the One medial wall and the second medial wall, first medial wall and the second medial wall by oblique chamfered transition, wherein, in described first Side wall is made up of two symmetrical cambered surfaces and two symmetrical planes, and two symmetrical cambered surfaces are located on the side of same cylinder, and two Individual symmetrical plane is parallel to each other, and the upper end in the plane of first medial wall near the second medial wall is provided with arc convex, The second described medial wall is in up-small and down-big tubaeform bore, and the bore of the second medial wall upper end is more than the first medial wall Bore, the first described medial wall is corresponding with the first lateral wall, and the second described medial wall is corresponding with the second lateral wall.

Further, distance of the lowermost end of the arc groove away from the second lateral wall is 0.5mm.

Further, the first described lateral wall is outward extended with 4 lug handles.

Further, described lug handle is arc-shaped structure, and 4 lug handles are evenly distributed on same circumference On.

3. beneficial effect

The technical scheme provided using this utility model, compared with prior art, is had the advantages that：

（1）The attachment structure of a kind of roll of the present utility model and roll mandrel, its first medial wall is by two symmetrical cambered surfaces With two symmetrical plane compositions, two symmetrical cambered surfaces are located on the side of same cylinder, and two symmetrical planes are parallel to each other, Upper end in the plane of the first medial wall near the second medial wall is provided with arc convex, and the second medial wall is in up-small and down-big Tubaeform bore, and the bore of the second medial wall upper end is more than the bore of the first medial wall.The structure design of the medial wall can make Obtain medial wall and install with roll mandrel gapless and coordinate.

（2）The attachment structure of a kind of roll of the present utility model and roll mandrel, it is circumferentially arranged on its second lateral wall to have One circle arc groove, the distance of the lowermost end of the arc groove away from the second lateral wall is 0.5mm, and the design of the arc groove can make Obtain the second lateral wall and preferably install with roll gapless and coordinate.

（3）A kind of roll of the present utility model and the attachment structure of roll mandrel, on its first lateral wall 4 are outward extended with Lug handle, and the lug handle is arc-shaped structure, 4 lug handles are evenly distributed on same circumference.The lug handle The setting of handss can facilitate the installation and removal of roll and roll mandrel during mechanical assembly, while by lug handle design Cheng Yuan The more convenient manual safety operation of arcuate structure.4 lug handles are evenly distributed on same circumference, can be conducive to subsequently through Ringfeder mounting tool is installed into the ringfeder in roll, because 4 lug handles are evenly distributed on same circumference can make Mounting tool is obtained when ringfeder is installed, mounting tool on the one hand can be facilitated to capture ringfeder, ringfeder stress on the other hand can be caused equal It is even, preferably ringfeder is arranged in roll.

（4）The attachment structure of a kind of roll of the present utility model and roll mandrel, its reasonable in design, principle is simple, just In promoting the use of.

Description of the drawings

Fig. 1 is the top view of ringfeder in this utility model；

Fig. 2 is along the sectional view of A-A in Fig. 1；

Fig. 3 is the enlarged drawing in Fig. 2 at B.

Label declaration in schematic diagram：

1st, lateral wall；

11st, the first lateral wall；12nd, the second lateral wall；

111st, lug handle；121st, arc groove；

2nd, medial wall；

21st, the first medial wall；22nd, the second medial wall；

211st, arc convex.

Specific embodiment

To further appreciate that content of the present utility model, this utility model is described in detail in conjunction with the accompanying drawings and embodiments.

Embodiment 1

With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of roll of the present embodiment and the attachment structure of roll mandrel, including roll, roll mandrel And ringfeder, roll is connected with roll mandrel by ringfeder.

As depicted in figs. 1 and 2, ringfeder includes lateral wall 1 and medial wall 2, and the ringfeder is made up of lateral wall 1 and medial wall 2 Hollow cylindrical structure.

As shown in Fig. 2 lateral wall 1 includes the first lateral wall 11 and the second lateral wall 12, first lateral wall 11 and second By rounding transition, the radius of the rounding is 1.5mm for lateral wall 12.And the diameter of first lateral wall 11 is less than outside second The diameter of side wall 12, a diameter of 130.2mm of the first lateral wall 11 in the present embodiment, the second lateral wall 12 it is a diameter of 133.3mm, first lateral wall 11 is outward extended with symmetrically arranged lug handle 111, the first lateral wall in the present embodiment 4 lug handles 111 are outward extended with 11, and the lug handle 111 is arc-shaped structure, 4 lug handles 111 uniformly divide Cloth is on same circumference.The setting of lug handle 111 in the present embodiment can facilitate roll and roll mandrel during mechanical assembly Installation and removal, while the lug handle 111 is designed to into the more convenient manual safety operation of arc-shaped structure.4 lug handles Handss 111 are evenly distributed on same circumference, can be conducive to that the ringfeder is installed in roll subsequently through ringfeder mounting tool, Because 4 lug handles 111 are evenly distributed on same circumference mounting tool can be caused when ringfeder is installed, on the one hand may be used Facilitate mounting tool to capture ringfeder, on the other hand can cause ringfeder uniform force, preferably ringfeder is arranged in roll.As schemed It is circumferentially arranged on the second lateral wall 12 to have a circle arc groove 121 shown in 3, the lowermost end of arc groove 121 in the present embodiment Distance away from the second lateral wall 12 is 0.5mm, the design of the arc groove 121 can cause the second lateral wall 12 preferably with roll Gapless is installed and coordinated.When ringfeder and roll are assembled, the second lateral wall 12 of the ringfeder is engaged with roll, ringfeder and roll When axle is assembled, the medial wall 2 of the ringfeder is engaged with roll mandrel.

As shown in Fig. 2 medial wall 2 includes the first medial wall 21 and the second medial wall 22, first medial wall 21 and second Medial wall 22 is connected by oblique chamfered transition, and the ramp down angle is 30 degree with the angle of horizontal direction, and the setting at the ramp down angle can make Obtain medial wall 2 and preferably install with roll mandrel gapless and coordinate.First medial wall 21 is symmetrical flat by two symmetrical cambered surfaces and two Face constitutes, and two symmetrical cambered surfaces are located on the side of same cylinder, and two symmetrical planes are parallel to each other, the first medial wall Upper end in 21 plane near the second medial wall 22 is provided with arc convex 211, and the second medial wall 22 is in up-small and down-big Tubaeform bore, and the bore of the upper end of the second medial wall 22 is more than the bore of the first medial wall 21.Cambered surface peace in the present embodiment The height in face is 34.8mm, a diameter of 112mm of two symmetrical cambered surface place circumference, and the parallel distance of two symmetrical planes is 100mm.The taper of the second medial wall 22 of flare bore is 5 degree, and the bore of the upper end of the second medial wall 22 is 118.1mm, the bore of the lower end of the second medial wall 22 is 126mm.The first medial wall 21 and the first lateral wall 11 in the present embodiment Corresponding, the second medial wall 22 is corresponding with the second lateral wall 12.The structure and size design of medial wall 2 can make in the present embodiment Obtain medial wall 2 and install with roll mandrel gapless and coordinate.

Embodiment 2

A kind of roll of the present embodiment and the attachment structure of roll mandrel, with embodiment 1, difference exists its basic structure In：The first lateral wall 11 in the present embodiment is outward extended with 2 lug handles 111.

Embodiment 3

A kind of roll of the present embodiment and the attachment structure of roll mandrel, with embodiment 1, difference exists its basic structure In：The first lateral wall 11 in the present embodiment is outward extended with 6 lug handles 111.

Below schematically this utility model and embodiments thereof be described, the description does not have restricted, accompanying drawing Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area Those of ordinary skill enlightened by it, in the case where objective is created without departing from this utility model, design without creative The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.

Claims (1)

1. the attachment structure of a kind of roll and roll mandrel, including roll, roll mandrel and ringfeder, described roll and roll mandrel passes through Ringfeder is connected, it is characterised in that：

Described ringfeder includes lateral wall (1) and medial wall (2), and described lateral wall (1) and medial wall (2) constitutes hollow cylinder Body structure, wherein, described lateral wall (1) is including the first lateral wall (11) and the second lateral wall (12), first lateral wall And the second lateral wall (12) are by rounding transition, and the diameter of first lateral wall (11) is less than the second lateral wall (12) (11) Diameter, wherein, be outward extended with symmetrically arranged lug handle (111) on described the first lateral wall (11), described Circumferentially arranged on two lateral walls (12) to have a circle arc groove (121), second lateral wall (12) is engaged with above-mentioned roll, Described medial wall (2) is engaged with above-mentioned roll mandrel, and the medial wall (2) is including the first medial wall (21) and the second medial wall (22), first medial wall (21) and the second medial wall (22) are by oblique chamfered transition, wherein, described the first medial wall (21) It is made up of two symmetrical cambered surfaces and two symmetrical planes, two symmetrical cambered surfaces are located on the side of same cylinder, and two right Plane is claimed to be parallel to each other, it is convex that the upper end in the plane of first medial wall (21) near the second medial wall (22) is provided with arc Rise (211), described the second medial wall (22) is in up-small and down-big tubaeform bore, and the bore of the second medial wall (22) upper end More than the bore of the first medial wall (21), described the first medial wall (21) is corresponding with the first lateral wall (11), and described Two medial walls (22) are corresponding with the second lateral wall (12)；

Distance of the lowermost end of the arc groove (121) away from the second lateral wall (12) is 0.5mm；

Described the first lateral wall (11) is outward extended with 4 lug handles (111)；

Described lug handle (111) is arc-shaped structure, and 4 lug handles (111) are evenly distributed on same circumference.