CN211220522U - Bearing replacing device - Google Patents

Abstract

The utility model relates to a device is changed to bearing, including location head, depression bar and pull rod, the location head is equipped with the bearing groove, the depression bar with bearing groove sliding connection, the location head is equipped with the location portion of going on fixing a position work piece dead eye, the pull rod with the location head is articulated, control during the pull rod swing the reciprocal slip of depression bar still includes the connecting block, connecting block one end with the pull rod is articulated, the connecting block other end with the depression bar is articulated, the pull rod is equipped with the connector, the connector is equipped with the spread groove, the depression bar both sides are articulated a connecting block respectively, the connecting block other end with the connector is articulated. The utility model provides a can need not to dismantle alright change bearing and the not hard bearing change device that can not make the bearing damage again.

Description

Bearing replacing device

Technical Field

The utility model relates to a bearing changes device.

Background

The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision.

However, the bearing and the workpiece are usually in interference fit, so that the bearing needs to be knocked in by means of tools such as a hammer when being installed, the bearing needs to be jacked by the jacking piece when being replaced, the jacking piece is knocked to eject the bearing, then a new bearing is knocked in, the bearing or the workpiece can be knocked out if the force is too large when being knocked, the bearing cannot be knocked in if the force is too small, the bearing can be installed or replaced by repeated knocking with proper force, the labor is very great, the workpiece for installing the bearing is usually located inside equipment, the bearing needs to be detached to be knocked and replaced when being replaced, a large number of workpieces need to be detached when the bearing is connected and detached inside, and the operation is very troublesome.

SUMMERY OF THE UTILITY MODEL

To sum up, for overcoming the not enough of prior art, the utility model provides a can need not to dismantle alright change bearing and not hard can not make the bearing change device that the bearing damaged again.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a bearing replacing device, includes location head, depression bar and pull rod, the location head is equipped with the bearing groove, the depression bar with bearing groove sliding connection, the location head is equipped with the location portion of going on fixing a position work piece dead eye, the pull rod with the location head is articulated, control when the pull rod swings the depression bar is reciprocal to be slided.

The arrangement is that the bearing is placed in the bearing groove, then the positioning head is positioned on the workpiece to be installed or replaced by the positioning part, the bearing in the bearing groove is aligned with the bearing hole on the workpiece, then the pull rod is pressed down, the bearing in the bearing groove is pressed on the bearing hole on the workpiece, due to the lever principle, the acting force of the pressed pull rod can be amplified according to the length of the pull rod in an equal ratio, the amplified acting force is conducted to the bearing by the pull rod, the bearing is pressed into the bearing hole by the amplified acting force or the bearing to be replaced is ejected to directly replace and complete the replacement, repeated beating is not needed, labor is saved, the bearing is not damaged, the bearing replacing device can be directly replaced by the positioning part as long as the position of the workpiece for installing the bearing is exposed outside, the workpiece to be replaced without dismounting the workpiece needing to replace the bearing, the pull rod is convenient, the pull rod can drive the pressing rod to return to the original position, the bearing groove is emptied again, the bearing can be placed again, next installation or replacement is carried out, and the operation is simple.

Furthermore, the connecting device also comprises a connecting block, wherein one end of the connecting block is hinged to the pull rod, and the other end of the connecting block is hinged to the pressing rod.

So set up, the connecting block can take the depression bar to be pushed down when the pull rod is pushed down, because the connected mode at connecting block both ends all is articulated, so when the depression bar pushed down, correspond the ascending position change of depression bar slip direction, the connecting block both ends rotate and the depression bar and the pull rod between the angle change, can not influence the slip of depression bar, simple structure.

Further, the pull rod is provided with a connector, the connector is provided with a connecting groove, two sides of the pressing rod are respectively hinged with a connecting block, and the other end of the connecting block is hinged with the connector.

So set up, the depression bar just is located among the spread groove, and the connecting block conduction effort simultaneously about the depression bar when pushing down the pull rod, the depression bar atress is more even, can not appear the effort and lead to the depression bar opposite side slope to lead to wearing and tearing the condition of increaseing to one side.

Furthermore, the width of the connecting groove is matched with the pressure rod and the connecting block.

So set up, the spread groove alright with restrict the depression bar at spread groove width direction's swing, the wearing and tearing of depression bar reduce.

Furthermore, the positioning head is provided with two limiting blocks, the distance between the two limiting blocks is matched with the pressure rod, and the limiting blocks are positioned below the connecting grooves.

So set up, the stopper alright with restricting the depression bar at spread groove length direction's swing, the wearing and tearing of depression bar further reduce.

Furthermore, the pressure bar further comprises a reinforcing rib, the reinforcing rib is connected with the connecting part, and the reinforcing rib is not arranged on the moving path of the pressure bar.

So set up, the strengthening rib has increased the intensity of connecting portion, has reduced the condition that the connecting groove both sides atress warp after the trip numerous oscillations.

Further, the depression bar includes pressure head and slide bar, the slide bar cross-sectional area is less than the pressure head, the bearing groove bottom is equipped with the depression bar mouth, the depression bar mouth with the slide bar cooperation.

So set up, just can produce the friction between slide bar and the depression bar mouth when the depression bar slides, because the slide bar cross-sectional area is less than the pressure head, so area of contact reduces, and the frictional force who produces reduces, and the power that pushes down the pull rod needs also reduces simultaneously, and the wearing and tearing between depression bar and the locating head diminish, and the dead possibility of depression bar card reduces.

Furthermore, the positioning device further comprises a bearing cover, the positioning head is provided with a holding rod, the holding rod is provided with a bearing storage groove, the bearing storage groove is in through connection with the bearing groove, and the bearing cover is matched with the bearing storage groove.

So set up, can grasp the holding rod when pressing the pull rod, more do benefit to and have an effect, it is more convenient to operate, can deposit the bearing among the bearing storage tank in addition, covers the bearing cap and prevents falling out, and the operation bearing is changed the device installation or is changed and need not after accomplishing and putting into the bearing groove taking the bearing, only needs to push away the bearing in the bearing storage tank and can begin another installation or change, easy operation in the bearing groove.

Furthermore, location portion includes bracing piece and locating plate, the locating plate be equipped with bearing groove complex opening.

So set up, when pushing down the pull rod with bearing groove alignment dead eye, locating plate on the bracing piece just can push against the work piece and produce the effort that the reaction force offset when pushing down the pull rod and fix bearing change device, and the old bearing that is extruded from the dead eye falls from the opening, simple structure.

Furthermore, the number of the support rods is at least two, and the distances from the two support rods to the circle center of the bearing groove are equal.

So set up, can set up the distance of bearing bracing piece to the bearing groove centre of a circle into the radius of circular arc when the bearing of work piece is outer for the circular arc coaxial with the dead eye, only need during the location like this with the bracing piece top to the circular arc alright direct alignment dead eye centre of a circle, easy operation.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is an exploded view of the first embodiment of the present invention.

Fig. 3 is an enlarged view of a portion a of fig. 2.

Fig. 4 is a front sectional view of the first embodiment of the present invention.

Fig. 5 is a schematic structural view of a positioning head according to a first embodiment of the present invention.

Fig. 6 is a schematic structural view of a positioning head according to a second embodiment of the present invention.

Fig. 7 is a schematic structural view of a positioning head according to a third embodiment of the present invention.

Fig. 8 is a usage status diagram of the third embodiment of the present invention.

The reference numbers in the figures mean: 1. the positioning device comprises a positioning head, 101 bearing grooves, 102 positioning parts, 1021 supporting rods, 1022 positioning plates, 10221 openings, 103 limiting blocks, 104 pressure rod openings, 105 holding rods, 1051 bearing storage grooves, 2 pressure rods, 201 pressure heads, 202 sliding rods, 3 pull rods, 301 connectors, 3011 connecting grooves, 3012 reinforcing ribs, 4 connecting blocks and 5 bearing covers.

Detailed Description

The present embodiment is only an explanation of the present embodiment, and it is not a limitation of the present embodiment, and a person skilled in the art can make modifications without inventive contribution to the present embodiment as needed after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present embodiment.

Referring to the attached drawings 1-5, the utility model provides the following technical scheme: the utility model provides a bearing replacing device, includes location head 1, depression bar 2 and pull rod 3, location head 1 is equipped with bearing groove 101, depression bar 2 with bearing groove 101 sliding connection, location head 1 is equipped with carries out the location portion 102 of fixing a position to the work piece dead eye, pull rod 3 with location head 1 is articulated, control during the swing of pull rod 3 the reciprocal slip of depression bar 2.

The arrangement is that the bearing is placed in the bearing groove 101, then the positioning head 1 is positioned on a workpiece to be installed or replaced by the positioning part 102, the bearing in the bearing groove 101 is aligned with a bearing hole on the workpiece, then the pull rod 3 is pressed down, the bearing in the bearing groove 101 is pressed on the bearing hole on the workpiece, due to the lever principle, the acting force of the pressed pull rod 3 can be amplified according to the length of the pull rod 3 in an equal ratio, the amplified acting force is transmitted to the bearing by the pull rod 3, the amplified acting force of the bearing is pressed into the bearing hole or the bearing to be replaced is ejected out to directly replace and complete the replacement, repeated beating is not needed, labor is saved, the bearing is not damaged, the bearing replacing device can be directly replaced by the positioning part 102 as long as the position of the workpiece for installing the bearing is exposed outside, the workpiece to which the bearing is not needed to be replaced is not needed, and the replacement is very convenient, and then the pulling rod 3 can be pulled up, the pulling rod 3 can drive the pressing rod 2 to return to the original position, the bearing groove 101 is emptied again, the bearing can be placed again, the next installation or replacement can be carried out, and the operation is simple.

Preferably, the present embodiment further includes a connecting block 4, one end of the connecting block 4 is hinged to the lever 3, and the other end of the connecting block 4 is hinged to the pressing rod 2.

So set up, connecting block 4 can take depression bar 2 to be pushed down when spanner 3 is pushed down, because the connected mode at 4 both ends of connecting block all is articulated, so when depression bar 2 pushed down, correspond the ascending position change of 2 slip directions of depression bar, 4 both ends of connecting block rotate with the depression bar 2 and the change of angle between the spanner 3, can not influence the slip of depression bar 2, simple structure.

This embodiment is preferred, the lever 3 is equipped with connector 301, connector 301 is equipped with spread groove 3011, 2 both sides of depression bar articulate a connecting block 4 respectively, the 4 other ends of connecting block with connector 301 is articulated.

So set up, depression bar 2 just is located among spread groove 3011, and the connecting block 4 conduction effort simultaneously about depression bar 2 when pushing down pull rod 3, and 2 atress of depression bar are more even, can not appear the effort and lead to the condition that 2 looks opposite side slopes of depression bar lead to wearing and tearing to increase to one side.

In this embodiment, preferably, the width of the connecting slot 3011 is matched with the pressure lever 2 and the connecting block 4, the setting is not limited, when the connecting block 4 is hinged inside the connecting slot 3011, the width of the connecting slot 3011 is matched with the pressure lever 2 and the connecting block 4, when the connecting block 4 is hinged outside the connecting slot 3011, the width of the connecting slot 3011 is matched with the pressure lever 2, or when the connecting slot 3011 is other width, the width of the connecting slot 3011 is other size capable of limiting the swing of the pressure lever 2 in the width direction of the connecting slot 3011.

So set up, the spread groove 3011 can restrict the swing of depression bar 2 at spread groove 3011 width direction, and the wearing and tearing of depression bar 2 reduce.

Preferably, the positioning head 1 is provided with two limiting blocks 103, the distance between the two limiting blocks 103 is matched with the pressing rod 2, and the limiting blocks 103 are located below the connecting groove 3011.

So set up, stopper 103 can be restricted the depression bar 2 at the swing of connecting groove 3011 length direction, and the wearing and tearing of depression bar 2 further reduce.

In this embodiment, it is preferable that the pressing rod further includes a reinforcing rib 3012, the reinforcing rib 3012 is connected to the connecting portion, and the reinforcing rib 3012 is not on the moving path of the pressing rod 2.

So set up, strengthening rib 3012 has increased the intensity of connecting portion, has reduced the condition that the connecting groove 3011 both sides atress warp after the multiple swing of lever 3.

Preferably, the pressing rod 2 includes a pressing head 201 and a sliding rod 202, the cross-sectional area of the sliding rod 202 is smaller than that of the pressing head 201, a pressing rod opening 104 is formed at the bottom of the bearing groove 101, and the pressing rod opening 104 is matched with the sliding rod 202.

So set up, just can produce the friction between slip pole 202 and the depression bar mouth 104 when depression bar 2 slides, because the cross-sectional area of slip pole 202 is less than pressure head 201, so area of contact reduces, and the frictional force who produces reduces, and the power that pushes down the pull 3 needs also reduces simultaneously, and the wearing and tearing between depression bar 2 and the locating head 1 become little, and the dead possibility of depression bar 2 card reduces.

Preferably, the positioning device further comprises a bearing cover 5, the positioning head 1 is provided with a holding rod 105, the holding rod 105 is provided with a bearing storage groove 1051, the bearing storage groove 1051 is in through connection with the bearing groove 101, and the bearing cover 5 is matched with the bearing storage groove 1051.

So set up, can grasp holding rod 105 when pressing the trigger lever 3, more do benefit to and have an effect, it is more convenient to operate, can deposit the bearing among bearing storage tank 1051 in addition, cover bearing cap 5 and prevent falling out, need not in putting into bearing groove 101 taking the bearing after the operation bearing changes the device installation or changes the completion, only need to push away the bearing in the bearing storage tank 1051 and can begin another installation or change in bearing groove 101, easy operation.

Preferably, the positioning portion 102 includes a support rod 1021 and a positioning plate 1022, and the positioning plate 1022 is provided with an opening 10221 matching with the bearing groove 101.

With such arrangement, when the bearing slot 101 is aligned with the bearing hole and the trigger lever 3 is pressed down, the positioning plate 1022 on the support rod 1021 will push against the workpiece to generate a reaction force to counteract the action force generated when the trigger lever 3 is pressed down to fix the bearing replacing device, so that the old bearing pressed out from the bearing hole falls down from the opening 10221, and the structure is simple.

Referring to fig. 6 to 8, in the embodiment, preferably, at least two support rods 1021 are provided, and distances from the two support rods 1021 to a center of the bearing groove 101 are equal, and the setting is not limited, and the number of the support rods 1021 may be three, four, or more.

So set up, can set up the distance of bearing bracing piece 1021 to the centre of a circle of bearing groove 101 as the radius of circular arc when the bearing of work piece is outer for the circular arc coaxial with the dead eye, only need during the location like this with bracing piece 1021 top to the circular arc alright direct alignment dead eye centre of a circle, easy operation.

Claims (10)

1. A bearing replacing device is characterized in that: including location head, depression bar and pull rod, the location head is equipped with the bearing groove, the depression bar with bearing groove sliding connection, the location head is equipped with carries out the location portion of fixing a position to the work piece dead eye, the pull rod with the location head is articulated, control when the pull rod swings the depression bar is reciprocal to be slided.

2. A bearing changing apparatus according to claim 1, wherein: the connecting rod is characterized by further comprising a connecting block, one end of the connecting block is hinged to the pull rod, and the other end of the connecting block is hinged to the pressing rod.

3. A bearing changing apparatus according to claim 2, wherein: the spanner is equipped with the connector, the connector is equipped with the spread groove, depression bar both sides articulate a connecting block respectively, the connecting block other end with the connector is articulated.

4. A bearing changing apparatus according to claim 3, wherein: the width of the connecting groove is matched with the pressure lever and the connecting block.

5. A bearing changing arrangement according to claim 4, wherein: the positioning head is provided with two limiting blocks, the distance between the two limiting blocks is matched with the pressure rod, and the limiting blocks are located below the connecting grooves.

6. A bearing changing apparatus according to claim 3, wherein: the pressure bar further comprises a reinforcing rib, the reinforcing rib is connected with the connecting portion, and the reinforcing rib is not located on the moving path of the pressure bar.

7. A bearing changing apparatus according to claim 1, wherein: the depression bar includes pressure head and slide bar, the slide bar cross-sectional area is less than the pressure head, the bearing groove bottom is equipped with the depression bar mouth, the depression bar mouth with the slide bar cooperation.

8. A bearing changing apparatus according to claim 1, wherein: the positioning head is provided with a holding rod, the holding rod is provided with a bearing storage groove, the bearing storage groove is in through connection with the bearing groove, and the bearing cover is matched with the bearing storage groove.

9. A bearing changing apparatus according to claim 1, wherein: the positioning part comprises a support rod and a positioning plate, and the positioning plate is provided with an opening matched with the bearing groove.

10. A bearing changing apparatus according to claim 9, wherein: the supporting rods are at least two, and the distances from the two supporting rods to the circle center of the bearing groove are equal.

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