CN213615157U

CN213615157U - Press mounting device for precision bearing and rotor

Info

Publication number: CN213615157U
Application number: CN202022332488.1U
Authority: CN
Inventors: 王潇峰; 张寿海; 徐鼎
Original assignee: Hengdian Group Innuovo Electric Co Ltd
Current assignee: Hengdian Group Innuovo Electric Co Ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-07-06
Anticipated expiration: 2030-10-19

Abstract

The utility model relates to a pressure equipment device of precision bearing and rotor, include the pressure head and locate the pressure head below and with the lower pressure head of the coaxial setting of last pressure head, it includes first compression leg to go up the pressure head, be equipped with on the first compression leg and be used for supplying the rotor shaft to pass and with the first perforation of the coaxial setting of first compression leg, the cover is equipped with first bearing sheath on the first compression leg, the pressure head includes the second compression leg down, be equipped with on the second compression leg and be used for supplying the rotor shaft to pass and perforate with the second of the coaxial setting of second compression leg, the cover is equipped with the second bearing sheath on the second compression leg. The utility model has the characteristics of can avoid precision bearing to receive wearing and tearing and reduce the assembly degree of difficulty etc.

Description

Press mounting device for precision bearing and rotor

Technical Field

The utility model relates to a pressure equipment device of precision bearing and rotor belongs to the technical field of rotor and bearing pressure equipment.

Background

The assembly of precision bearings has been a technical challenge in the art. In the prior art, a manual and simple tool is mainly used, the precision bearing is installed on a rotor shaft matched with the precision bearing by tapping, and when the precision bearing is installed, the precision bearing can be installed and used only once and cannot be assembled repeatedly, so that the precision requirements for fixing and assembling the precision bearing are high, the wear rate is required to be lowest as possible, the product yield is low, and the assembly difficulty is high.

Disclosure of Invention

An object of the utility model is to provide a pressure equipment device of precision bearing and rotor has solved the precision bearing easy wearing and tearing and the big scheduling problem of the assembly degree of difficulty that prior art exists.

The above technical purpose of the present invention is mainly solved by the following technical solutions: a press-fitting device for a precision bearing and a rotor comprises an upper press head and a lower press head, wherein the lower press head is arranged below the upper press head and is coaxial with the upper press head, the upper press head comprises a first press column, a first through hole which is used for a rotor shaft to pass through and is coaxial with the first press column is formed in the first press column, a first bearing sheath is sleeved on the first press column, the lower press head comprises a second press column, a second through hole which is used for the rotor shaft to pass through and is coaxial with the second press column is formed in the second press column, and a second bearing sheath is sleeved on the second press column; through the setting of above-mentioned last pressure head and lower pressure head, so as to carry out the bearing pressure equipment to the both ends of rotor work piece, the pressure equipment intensity to the rotor work piece has effectively been strengthened, and the fenestrate setting of first perforation and second, be used for supplying the axle at rotor work piece both ends to pass respectively, make the bearing can embolia on the rotor shaft, and the setting of first bearing sheath and second bearing sheath, play the guard action to the bearing work piece, reduce the damage that causes bearing work piece specific surface, and fix a position the bearing work piece, avoid the bearing work piece to take place the slope when the pressure equipment, make the effort of pressure equipment more even, improve the pressure equipment quality.

Preferably, the first bearing sheath comprises a first connecting sleeve sleeved on the first compression leg and a first annular connecting block arranged at the lower end of the first connecting sleeve, and a first accommodating groove which is used for accommodating a bearing workpiece and is coaxial with the first connecting sleeve is arranged at the bottom of the first annular connecting block; the setting of above-mentioned first connecting sleeve for first bearing sheath can be fixed on first compression leg, forms the protection to the lateral wall of first compression leg, and makes first compression leg can remove along the axis on first bearing sheath, plays the effect of direction, guarantees going on steadily of pressure equipment, and the setting of first annular connecting block can form the parcel protection to the bearing work piece through first holding tank, strengthens the stability of bearing work piece when being pressed to the rotor shaft.

Preferably, the second bearing sheath comprises a second connecting sleeve sleeved on the second pressure column, and a second accommodating groove which is used for accommodating the bearing workpiece and is coaxial with the second connecting sleeve is arranged at the top of the second connecting sleeve; through the arrangement of the second connecting sleeve and the second accommodating groove, the bearing workpiece is protected and positioned, the rotor shaft can be accurately inserted into the bearing workpiece, and the press fitting efficiency is improved.

Preferably, the outer wall of the upper end of the first compression leg is provided with a first annular convex part positioned above the first connecting sleeve; the first annular convex part is arranged to play a role in limiting the upper end of the first bearing sheath, so that the first bearing sheath can move along with the movement of the first compression column, the first bearing sheath is prevented from being separated, and meanwhile, the acting force of the first bearing sheath is more uniform.

Preferably, a second annular convex part is arranged on the outer wall of the lower end of the second compression leg, and a third accommodating groove for accommodating the second annular convex part is arranged at the bottom of the second connecting sleeve; above-mentioned second annular convex part plays the effect of support for the second compression leg can be to the support of impressing of rotor shaft, increases the bottom to the support intensity of bearing work piece, and increases the stationarity of second compression leg, thereby can carry out the bearing pressure equipment with the cooperation of first compression leg to the both ends of rotor shaft.

Preferably, a chassis for supporting the second compression column is arranged below the second compression column, and an annular limiting convex part matched with the second connecting sleeve is arranged on the upper end face of the chassis; the setting on above-mentioned chassis to support second compression leg and second bearing sheath, increase the stability of this pressure equipment device bottom, carry on spacingly to the second adapter sleeve simultaneously, guarantee the verticality of second adapter sleeve, stability when strengthening the pressure equipment.

Preferably, the middle part of the chassis is provided with a third through hole for the rotor shaft to pass through; the third through hole is arranged, so that a moving space of the rotor shaft is provided during press mounting, and smooth press mounting of the bearing is guaranteed.

Therefore, the utility model has the characteristics of can avoid precision bearing to receive wearing and tearing and reduce the assembly degree of difficulty etc.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the mating configuration of the upper ram and the first bearing cartridge of FIG. 1;

fig. 3 is a schematic view of the structure of the lower ram, the second bearing shield, and the chassis of fig. 1.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

As shown in fig. 1-3, a press-fitting device for a precision bearing and a rotor includes an upper pressure head 1 and a lower pressure head 2 disposed below the upper pressure head 1 and coaxially disposed with the upper pressure head 1, where the upper pressure head 1 includes a first pressure column 11, the first pressure column 11 is provided with a first through hole 111 for a rotor shaft to pass through and coaxially disposed with the first pressure column 11, the first pressure column 11 is sleeved with a first bearing sheath 13, the lower pressure head 2 includes a second pressure column 21, the second pressure column 21 is provided with a second through hole 211 for the rotor shaft to pass through and coaxially disposed with the second pressure column 21, and the second pressure column 21 is sleeved with a second bearing sheath 23; the arrangement of the upper pressure head and the lower pressure head is convenient for bearing press mounting of two ends of the rotor workpiece, the press mounting strength of the rotor workpiece is effectively enhanced, the arrangement of the first through hole and the second through hole is respectively used for allowing shafts at two ends of the rotor workpiece to pass through, so that the bearing can be sleeved on the rotor shaft, and the arrangement of the first bearing sheath and the second bearing sheath plays a role in protecting the bearing workpiece, reduces damage to the specific surface of the bearing workpiece, positions the bearing workpiece, avoids the bearing workpiece from inclining during press mounting, enables the press mounting acting force to be more uniform, and improves the press mounting quality; a chassis 3 for supporting the second compression leg 21 is arranged below the second compression leg 21, and an annular limiting convex part 31 matched with the second connecting sleeve 231 is arranged on the upper end surface of the chassis 3; the arrangement of the chassis is convenient for supporting the second compression leg and the second bearing sheath, so that the stability of the bottom of the press fitting device is improved, and meanwhile, the second connecting sleeve is limited, so that the verticality of the second connecting sleeve is ensured, and the stability during press fitting is enhanced; the middle part of the chassis 3 is provided with a third through hole 32 for the rotor shaft to pass through; the third through hole is arranged, so that a moving space of the rotor shaft is provided during press mounting, and smooth press mounting of the bearing is guaranteed.

The first bearing sheath and the second bearing sheath are made of materials such as nonferrous metals or engineering plastics, the hardness of the first bearing sheath and the second bearing sheath is smaller than that of the bearing workpiece, the effect of protecting the bearing workpiece is achieved, the abrasion and the damage to the bearing workpiece are reduced, the hardness of the upper pressure head and the lower pressure head is larger than that of the bearing workpiece, the press-fitting strength is enhanced, before the press-fitting of the bearing workpiece and the rotor workpiece is carried out, the two bearing workpieces are respectively pushed to the lower part of the upper pressure head and the upper part of the lower pressure head through an external bearing pushing device, the rotor workpiece is fixed between the two bearing workpieces, then the upper pressure head is driven to be pressed downwards through the external press-fitting machine, so that the bearing workpieces at the two ends of the rotor workpiece are respectively pressed onto the rotor shaft, the rotor shaft at the lower end of the rotor workpiece penetrates through the second perforation and, the bearing workpiece above the rotor workpiece is pressed to the upper end of the rotor shaft, and the second connecting sleeve is directly and tightly matched in the annular limiting convex part.

The first bearing sheath 13 comprises a first connecting sleeve 131 sleeved on the first compression leg 11 and a first annular connecting block 132 arranged at the lower end of the first connecting sleeve 131, and a first accommodating groove 133 which is used for accommodating a bearing workpiece and is coaxially arranged with the first connecting sleeve 131 is arranged at the bottom of the first annular connecting block 132; the arrangement of the first connecting sleeve enables the first bearing sheath to be fixed on the first compression leg, the side wall of the first compression leg is protected, the first compression leg can move on the first bearing sheath along the axis, the guiding effect is achieved, the stable press-fitting is guaranteed, the arrangement of the first annular connecting block can form wrapping protection on a bearing workpiece through the first accommodating groove, the stability of the bearing workpiece when the bearing workpiece is pressed on the rotor shaft is enhanced, and the first annular convex part 112 located above the first connecting sleeve 131 is arranged on the outer wall of the upper end of the first compression leg 11; the first annular convex part is arranged to play a role in limiting the upper end of the first bearing sheath, so that the first bearing sheath can move along with the movement of the first compression column, the first bearing sheath is prevented from being separated, and meanwhile, the acting force of the first bearing sheath is more uniform.

The second bearing sheath 23 comprises a second connecting sleeve 231 sleeved on the second pressure column 21, and a second accommodating groove 232 which is used for accommodating the bearing workpiece and is coaxial with the second connecting sleeve 231 is arranged at the top of the second connecting sleeve 231; through the arrangement of the second connecting sleeve and the second accommodating groove, the bearing workpiece is protected and positioned conveniently, the rotor shaft can be accurately inserted into the bearing workpiece, and the press-fitting efficiency is improved; a second annular convex part 212 is arranged on the outer wall of the lower end of the second compression leg 21, and a third accommodating groove 213 for accommodating the second annular convex part 212 is arranged at the bottom of the second connecting sleeve 231; the second annular convex part plays a supporting role, so that the second compression leg can press and support the rotor shaft, the supporting strength of the bottom to a bearing workpiece is increased, the stability of the second compression leg is increased, and the second compression leg can be matched with the first compression leg to press and mount the bearings at two ends of the rotor shaft; when the bearing workpiece is pressed and installed, the bearing workpiece is pressed and installed on the rotor shaft in the first accommodating groove and the second accommodating groove respectively, and the bearing workpiece is prevented from inclining when being pressed and installed.

Claims

1. The utility model provides a pressure equipment device of precision bearing and rotor which characterized in that: including last pressure head (1) and locate pressure head (1) below and with lower pressure head (2) of last pressure head (1) coaxial setting, it includes first compression leg (11) to go up pressure head (1), be equipped with on first compression leg (11) and be used for supplying the rotor shaft to pass and with first compression leg (11) coaxial setting first perforation (111), the cover is equipped with first bearing sheath (13) on first compression leg (11), pressure head (2) include second compression leg (21) down, be equipped with on second compression leg (21) and be used for supplying the rotor shaft to pass and perforate (211) with the second of the coaxial setting of second compression leg (21), the cover is equipped with second bearing sheath (23) on second compression leg (21).

2. A precision bearing and rotor press-fitting apparatus as claimed in claim 1, wherein: the first bearing sheath (13) comprises a first connecting sleeve (131) sleeved on the first compression leg (11) and a first annular connecting block (132) arranged at the lower end of the first connecting sleeve (131), and a first accommodating groove (133) used for accommodating a bearing workpiece and coaxially arranged with the first connecting sleeve (131) is arranged at the bottom of the first annular connecting block (132).

3. A precision bearing and rotor press-fitting apparatus as claimed in claim 1, wherein: the second bearing sheath (23) comprises a second connecting sleeve (231) sleeved on the second pressure column (21), and a second accommodating groove (232) used for accommodating a bearing workpiece and coaxially arranged with the second connecting sleeve (231) is formed in the top of the second connecting sleeve (231).

4. A precision bearing and rotor press-fitting apparatus as claimed in claim 2, wherein: and a first annular convex part (112) positioned above the first connecting sleeve (131) is arranged on the outer wall of the upper end of the first compression leg (11).

5. A precision bearing and rotor press-fitting apparatus as claimed in claim 3, wherein: and a second annular convex part (212) is arranged on the outer wall of the lower end of the second compression leg (21), and a third accommodating groove (213) for accommodating the second annular convex part (212) is formed in the bottom of the second connecting sleeve (231).

6. A precision bearing and rotor press-fitting apparatus as claimed in claim 1, wherein: the lower part of second compression leg (21) is equipped with chassis (3) that is used for supporting second compression leg (21), be equipped with on the up end of chassis (3) with second adapter sleeve (231) complex annular spacing convex part (31).

7. A precision bearing and rotor press-fitting device according to claim 6, wherein: and a third through hole (32) for the rotor shaft to pass through is formed in the middle of the chassis (3).