CN203614694U - Bering mounting structure for gear hobbing machine upright differential mechanism - Google Patents

Abstract

The utility model discloses a bearing mounting structure for a gear hobbing machine upright differential mechanism. A right gear and a left gear are sleeved on a mandrel; a first bearing is sleeved on the right end part of the right gear and is axially limited by a first receiving disc; a second bearing is sleeved on the mandrel at the right side of the left gear and is axially limited by a second receiving disc; an adjusting pad and a third bearing are sequentially sleeved on the mandrel at the left side of the left gear from the right to the left; the third bearing is a conical roller bearing and is axially limited by a third receiving disc at the left side of the third bearing; the first bearing and the second bearing are angular contact bearings. The first bearing and the second bearing are changed from the original radial bearings into the present angular contact bearings, the axial bearing force of the angular contact bearing is better than that of the radial bearing, so that the service life of the first and second bearings is ensured, and the service life of the third bearing is also ensured, and the reliability of the structure can be improved without frequently replacing the bearings.

Description

A kind of bearing mounting structure of gear hobbing machine column differential attachment

Technical field

The utility model belongs to gear hobbing machine field, is specifically related to a kind of bearing mounting structure of gear hobbing machine column differential attachment.

Background technique

Differential gearing is an important constituent element on mechanical type hobbing machine driving chain, and it is for transmitting torque and an important mechanism of carrying out differential compensation.

Simultaneously, bearing mounting structure is again the important composition part of gear hobbing machine differential attachment, as shown in Figure 1, existing bearing mounting structure comprises that mandrel 1 and the 3rd connects dish 10, and wherein mandrel 1 is and is horizontally disposed with, and is set with right gear 2 and left gear 3 on this mandrel 1, wherein the right part of right gear 2 is set with a clutch shaft bearing 4, this clutch shaft bearing 4 is radial bearing, and connects dish 5 axial limitings by first, and first connect dish 5 and fix with column.On the mandrel 1 on described left gear 3 the right, be set with second bearing 6, this second bearing 6 is radial bearing, and by second connect dish 7 axial limitings, and second connect dish be sleeved on mandrel 1; On the mandrel 1 on described left gear 3 left sides, turn left from the right side and be set with successively spacer 8 and the 3rd bearing 9, the 3rd bearing 9 is tapered roller bearing, and the 3rd bearing 9 connects dish 10 axial limitings by the described the 3rd of its left side, and the 3rd connect dish and 10 also fix with described column.

Because described clutch shaft bearing 4 and the second bearing 6 are radial bearing, again because the axial bearing capacity of radial bearing is original just not high, and the axial force that this structure need to be carried is larger, therefore in this structure first and second bearing 4 to select radial bearing be little suitable, when clutch shaft bearing 4 and the second bearing 6 are worked, the stressed size of Internal and external cycle end face is inevitable not etc., thereby cause the working life of clutch shaft bearing 4 and the second bearing 6 not high, so just need often to change clutch shaft bearing 4 and the second bearing 6, thereby cause the reliability of this bearing mounting structure poor.

Model utility content

Technical problem to be solved in the utility model is to provide a kind of bearing mounting structure of gear hobbing machine column differential attachment, and wish guarantees the working life of bearing.

The technical solution of the utility model is as follows: a kind of bearing mounting structure of gear hobbing machine column differential attachment, comprise that mandrel (1) and the 3rd connects dish (10), wherein mandrel (1) is and is horizontally disposed with, on this mandrel, be set with right gear (2) and left gear (3), wherein the right part of right gear (2) is set with a clutch shaft bearing (4), this clutch shaft bearing connects dish (5) axial limiting by first, and first connect dish and fix with column; Mandrel (1) second bearing of upper suit (6) on described left gear (3) the right, this second bearing connects dish (7) axial limiting by second, and second connect to coil and be sleeved on mandrel (1);

Upper the turning left from the right side of mandrel (1) on described left gear (3) left side is set with spacer (8) and the 3rd bearing (9) successively, the 3rd bearing is tapered roller bearing, and the 3rd bearing (9) connects dish (10) axial limiting by the described the 3rd of its left side, and the 3rd connect dish (10) and also fix with described column, it is characterized in that: described clutch shaft bearing (4) and the second bearing (6) are angular contact bearing, the installation direction of these two bearings is identical, and the installation direction of these two bearings is relative with the installation direction of described the 3rd bearing (9).

The utility model changes clutch shaft bearing (4) and the second bearing (6) into present angular contact bearing by original radial bearing, and the axial carrying force rate radial bearing of angular contact bearing is well a lot, so just can guarantee the working life of clutch shaft bearing (4) and the second bearing (6), also can guarantee the working life of the 3rd bearing (9) simultaneously, so just need not often change bearing, thereby improve this reliability of structure, and the utility model has just solved large problem by little change, there is good practicability.

Beneficial effect: the utility model changes clutch shaft bearing (4) and the second bearing (6) into present angular contact bearing by original radial bearing, and the axial carrying force rate radial bearing of angular contact bearing is well a lot, so just can guarantee the working life of first and second bearing (4), also can guarantee the working life of the 3rd bearing (9) simultaneously, so just need not often change bearing, thereby improve this reliability of structure, and the utility model has just solved large problem by little change, there is good practicability, be suitable for extensively promoting the use.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of conventional construction.

Fig. 2 is schematic diagram of the present utility model.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail:

As shown in Figure 2, a kind of bearing mounting structure of gear hobbing machine column differential attachment, comprise that mandrel 1 and the 3rd connects dish 10, wherein mandrel 1 is and is horizontally disposed with, on this mandrel 1, be set with right gear 2 and left gear 3, wherein the right part of right gear 2 is set with a clutch shaft bearing 4, and this clutch shaft bearing 4 connects dish 5 axial limitings by first, and first connect dish 5 and fix with column.On the mandrel 1 on described left gear 3 the right, be set with second bearing 6, this second bearing 6 connects dish 7 axial limitings by second, and second connect dish and 7 be sleeved on mandrel 1.On the mandrel 1 on described left gear 3 left sides, turn left from the right side and be set with successively spacer 8 and the 3rd bearing 9, the 3rd bearing 9 is tapered roller bearing, and the 3rd bearing 9 connects dish 10 axial limitings by the described the 3rd of its left side, and the 3rd connect dish and 10 also fix with described column.All the other structures of the present utility model are identical with existing structure, do not repeat at this, and difference is as described below.

Described clutch shaft bearing 4 and the second bearing 6 all adopt angular contact bearing, and the installation direction of these two bearings is identical, and the installation direction of these two bearings is relative with the installation direction of described the 3rd bearing 9.

The foregoing is only preferred embodiment of the present utility model; not take the utility model as restriction; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (1)

1. the bearing mounting structure of a gear hobbing machine column differential attachment, comprise that mandrel (1) and the 3rd connects dish (10), wherein mandrel (1) is and is horizontally disposed with, on this mandrel, be set with right gear (2) and left gear (3), wherein the right part of right gear (2) is set with a clutch shaft bearing (4), this clutch shaft bearing connects dish (5) axial limiting by first, and first connect dish and fix with column; Mandrel (1) second bearing of upper suit (6) on described left gear (3) the right, this second bearing connects dish (7) axial limiting by second, and second connect to coil and be sleeved on mandrel (1);

Upper the turning left from the right side of mandrel (1) on described left gear (3) left side is set with spacer (8) and the 3rd bearing (9) successively, the 3rd bearing is tapered roller bearing, and the 3rd bearing (9) connects dish (10) axial limiting by the described the 3rd of its left side, and the 3rd connect dish (10) and also fix with described column, it is characterized in that: described clutch shaft bearing (4) and the second bearing (6) are angular contact bearing, the installation direction of these two bearings is identical, and the installation direction of these two bearings is relative with the installation direction of described the 3rd bearing (9).

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