TW201610318A - Bearing puller for reverse-fork type damper cylinder - Google Patents

Abstract

A bearing puller for reverse-fork type damper cylinder comprises a clamping barrel having an elastic clamping claw, a spindle penetrating through the clamping barrel, and an adapter connected to the spindle. Accordingly, the clamping barrel can be used in a bearing that penetrates through the inside of a reverse-fork type damper cylinder. Under the condition that it is unable to see the inside of the reverse-fork type damper cylinder, the elastic clamping claw of the clamping barrel can produce sounds while passing through the bearing so as to confirm that the elastic clamping claw has hooked the bearing. Then, a pushing portion of the spindle pushes the elastic clamping claw to expand the elastic clamping claw so as to ensure that the elastic clamping claw can firmly hold the bearing in the reverse-fork type damper cylinder. Subsequently, the bearing can be pulled out from the inside of the reverse-fork type damper cylinder. Through the simplified bearing puller for reverse-fork type damper cylinder according to the present invention, two or more bearings can be pulled out from the inside of the reverse-fork type damper cylinder at the same time by one pulling operation.

Description

Reverse fork type damper bucket bearing extractor

This creation relates to a bearing extractor, and more particularly to a reverse fork type damper bucket bearing extractor.

As a conventional bearing extractor, there is a "simplified bearing extractor improved structure" disclosed in the new patent case No. M335589 of the Chinese Patent No. M335589, and a "bearing extractor" disclosed in the new patent case No. M271984. And the "bearing removal tool device" disclosed in the new patent case No. M271984.

The "improved structure of the simple bearing extractor" disclosed in the new patent application No. M335589, which comprises a fixed shaft seat, a push screw for moving the shaft, and a plurality of pull rods pivotally arranged, the end of each of the pull rods A hook portion is formed, whereby the outer peripheral edge of the bearing to be disassembled is hooked from the outside to the inside by the hook portion, and the bearing is taken out from the shaft.

However, this simple bearing extractor is only suitable for exposed bearing extraction in general dampers. For the inverted fork damper, the composition of the inverted fork damper is installed in the damper barrel with a plurality of self-lubricating bearings (bearings containing lubricating oil), and the barrel core is provided by the self-lubricating bearing Wherein, the barrel core can move axially in the damper barrel, etc., therefore, the bearing of the inverted fork damper is located inside the damper barrel, and the simple bearing extractor is hooked to the claw mechanism of the bearing from the outside to the inside, which cannot be applied to Bearing extraction in the damper barrel of the inverted fork damper.

The "bearing extractor" disclosed in the new patent application of M271984 includes an abutting member, a pulling member and a pushing member. The abutting member has a receiving groove at one end, and the connecting member is provided with a connecting receiving groove. a screw hole, the extracting member is screwed through the abutting member, a screw hole is arranged in the pulling member, and the extracting member protrudes from the outer side of the receiving groove to have a tube portion, and the peripheral wall of the tube portion is provided with a plurality of groove portions, so that the tube portion can be Radially contracted, the end of the tube portion also forms a flange protruding outwardly in the radial direction, the pushing member is screwed through the extracting member, the pulling member has a taper portion, and the taper portion can extend out of the tube portion of the extracting member, pushing The top tube portion expands radially. When the bearing extractor is used for extracting a bearing that is tightly pressed into the appliance, the abutting member has one end of the receiving groove abutting against the appliance, and then the extracting member screwed in the abutting member passes through the fitting The bearing is used to extract the bearing in the appliance by using the ejector provided in the extracting member to hook the end flange of the pipe end of the top extractor to the bearing periphery.

However, the bearing extractor is only suitable for the bearing extraction operation in the appliance, and it is difficult to apply to the bearing extraction operation in the deep fork damper barrel which is difficult to see in the deep. Moreover, the bearing extractor is pulled out by fixing the bearing by using a flange provided at the bottom end of the tube portion having the radial contraction, since the gap between the bearing and the inner wall of the device is relatively small, the size of the flange Due to the limitation of space, it can only form a thin shape, because of its small size, relatively poor mechanical strength, and the possibility of deformation or breakage. Moreover, during the operation of the operation, the user has the problem of being easily cut, and there is a problem that the use safety is not good.

The "bearing dismantling tool device" disclosed in the new patent application No. M454292 includes a screw set and a second retracting assembly, the screw set including a male screw and a female screw of a screwing male screw, the two retracting The components are respectively locked on the male and female screws, and each of the disassembling components comprises a middle sleeve, an outer sleeve and a plurality of pusher claws, one end of the middle sleeve extends a cap portion, and the cap portion and the middle sleeve The outer sleeve is locked on the outer side of the middle sleeve, and the plurality of pusher claws are disposed around one end of the outer sleeve, and one end of the push gripper is inserted into the retaining groove, and the other end of the push gripper is placed toward the receiving sleeve. Extending outside the slot.

However, the bearing dismounting tool device utilizes a combination of a screw set and a second retracting component to extend into a tube, wherein the push-pull piece is radially deployed by the outer sleeve rotating relative to the middle sleeve. The card is pressed into the bearing and then rotated through the screw set to push the bearing out of the tube. However, the bearing dismounting tool device is not suitable for the operation of the inverted fork type damper to take out the bearing, and the bearing dismounting tool device is composed of a plurality of components such as a screw set and a second retracting component, and the overall composition of the structure is zero. The number of components is too large, and it has the disadvantages of time-consuming assembly and high cost.

The main purpose of this creation is to provide a reverse fork type damper bucket bearing extractor, thereby solving the problems that the existing bearing extractor is not suitable for extracting the inverted fork type damper bearing, complicated structure and poor safety.

For the purpose of achieving the foregoing disclosure, the inverted fork type damper bucket bearing extractor proposed by the present invention comprises: a collet having an active space formed therein, the collet comprising a tubular portion and a shape formed at one end of the tubular portion a resilient jaw comprising a plurality of claws, each of the hooks being a free end with respect to the other end of the barrel and having a hook; a mandrel comprising a shaft portion and a top portion at one end of the shaft portion Abutting portion, the mandrel is disposed in the collet and is axially movable in the movable space of the collet, and the abutting portion of the mandrel is selectively movable to the elastic jaw of the collet to make the elastic clip The claw can be retracted, and pushes against the elastic jaw to expand radially outward; and an adapter is attached to the other end of the shaft portion of the mandrel relative to the abutting portion and can extend out of the barrel of the collet Outside the side end, the adapter is linked to the spindle.

Created by the front retractable damper bucket bearing extractor, which is mainly composed of a collet having an elastic jaw, a mandrel which is disposed in the collet and a coupling of a connecting mandrel, so that The compact structure performs the bearing extraction operation inside the inverted fork damping bucket, and the clamp can be used to pass through the bearing inside the inverted fork damping bucket, and the elastic hook of the elastic jaw itself makes the claw hook The retraction recovers through the expansion of the bearing and the sound of the collision occurs in the bearing. The user can listen to the sound and confirm that the elastic jaw has clamped the bearing in the inverted fork damping bucket, and the mandrel is re-used. The abutting portion is pushed against the elastic jaw fixing resistance elastic jaw, and the bearing can be easily and safely taken out from the inside of the inverted fork type damping barrel. Moreover, the creation can also be combined with the previously disclosed combination, so that it can simultaneously extract two or more bearings from the inside of the inverted fork damping bucket, thereby greatly reducing the working time of the inverted fork damping bucket to take out the bearing.

As shown in FIG. 1 , a preferred embodiment of the present inverted fork type damper bucket bearing extractor is disclosed. As can be seen from the drawings, the inverted fork damper bucket bearing extractor 1 mainly includes a collet 10 A mandrel 20 and an adapter 30.

As shown in FIG. 1 to FIG. 3, the cartridge 10 is a hollow cylinder having a movable space 100 therein, and includes a tubular portion 11 and an elastic jaw 12, and the elastic jaw 12 is formed on the tubular portion 11 At one end, the elastic jaw 12 includes a plurality of claw hooks 121. Each of the two adjacent claw hooks 121 has a groove 13 therebetween. Each of the claw hooks 121 has a flexibility of bending elasticity at a distal end thereof away from the tubular portion 11. The end, and the end of the claw hook 121 forms an outwardly projecting hook portion 122, so that the elastic jaw 12 has elasticity of radial expansion and contraction. In the preferred embodiment, the tubular portion 11 has an end plate 14 at one end thereof away from the elastic jaw 12, and a through hole 15 is formed in the end plate 14 and a limiting flange 16 at the edge of the through hole 15 is formed. The diameter of the through hole 15 is smaller than the inner diameter of the movable space 100, and the claw hook 121 may further form a guide surface 123 on the outer surface of the hook portion 122 at the end thereof.

As shown in FIG. 1 to FIG. 3, the mandrel 20 includes a shaft portion 21 and a top abutting portion 22 at one end of the shaft portion 21. The mandrel 20 is passed through the collet 10 and can be clamped. The axial movement of the movable space 100 of the cylinder 10, the shaft portion 21 of the mandrel 20 and the side wall of the movable space 100 have a space for providing the claw hook 121 to be retracted, and the abutting portion 22 of the mandrel 20 can be selectively moved. Up to the elastic jaws 12 of the collet 10, the elastic jaws 12 can be radially retracted by the external force, and the abutting portion 22 projects into the elastic jaws 12 to push against the elastic jaws 12 toward External radial expansion. In the preferred embodiment, the outer diameter of the shaft portion 21 is smaller than the inner diameter of the movable space 100 inside the collet 10 and larger than the inner diameter of the through hole 15, so that the end plate 14 of the collet 10 has a limit retaining edge. 16 can cause a limit on the mandrel 20.

As shown in FIG. 1 to FIG. 3, in the mandrel 20, the abutting portion 22 includes a conical section 221 and a ejector section 222. The ejector section 222 is formed at one end of the shaft portion 21, and the ejector section 222 is formed. The outer diameter is larger than the outer diameter of the shaft portion 21 and smaller than the inner diameter of the movable space 100 of the collet 10, and the ejector portion 222 can selectively extend inside the elastic jaw 12 of the collet 10 to push against the claw hook 121 having the hook portion 122. Radially expanding outward, the two ends of the conical section 221 are respectively a large diameter end and a small diameter end, and the large diameter end is formed at the other end of the pushing section 222. The diameter of the outer diameter of the large diameter end of the conical section 221 is larger than that of the collet 10 The inner diameter of the movable space 100 is large when the ejector section 222 can selectively extend into the inner side of the elastic jaw 12 of the collet 10 to push the claw hook 121 having the hook portion 122 to expand radially outward. The end can abut against the end of the hook portion 122 of the elastic jaw 12.

As shown in FIG. 1 to FIG. 3, the adapter member 30 is connected to the other end of the shaft portion 21 of the mandrel 20 with respect to the top abutting portion 22, and can extend beyond the side of the tubular portion 11 of the collet 10. The adapter 30 can be integrally formed with the mandrel 20 or be a separate component. The adapter 30 includes a fixed end portion 31 and a connecting end portion 32. The fixed end portion 31 is provided. And the connecting end portion 32 are respectively located at two ends of the adapter member 30, and pass through the through hole 15 at the side end of the cylindrical portion 11 of the collet 10 with the fixing end portion 31, and the fixing end portion 31 is fixed to the shaft of the mandrel 20. The connecting portion 32 is located outside the collet 10 and provides a portion for external force connection.

As shown in FIG. 1 to FIG. 3, in the preferred embodiment, the outer diameter of the connecting end portion 32 of the adapter member 30 is larger than the outer diameter of the fixed end portion 31 and the through hole 15 of the collet 10. The shaft portion 21 of the mandrel 20 is a connecting portion 23 at the other end thereof with respect to the top abutting portion 22, and a fixing screw hole 231 is formed in the connecting portion 23, and the fixed end portion 31 of the adapter member 30 is peripherally The surface is formed with a thread, and the fixed end portion 31 can be screwed into the fixing screw hole 231 of the connecting portion 23 to fix the adapter 30 and the mandrel 20 together.

As shown in FIG. 4, when the inverted fork type damper barrel bearing extractor 1 is applied to the bearing extraction operation of the inverted damper, the inverted damper is previously damped from the inner core of the bearing 3A. The barrel 3 is taken out, and the damper barrel 3 with the bearing 3A is mounted on a fixing frame 4, which is provided with an electric linear actuator 2 (such as an electric cylinder, etc.), and the artificial inverted fork damping barrel is also provided. The adapter 30 of the bearing extractor 1 is assembled with a linear moving end 2A of the electric linear actuator 2, whereby the electric linear actuator 2 is used to drive the inverted fork damping bucket bearing extractor 1 to take the internal bearing 3A of the damping bucket 3 .

In the process of extracting the bearing 3A in the damper barrel 3 by the inverted fork type damper barrel bearing extractor 1, as shown in FIG. 5, the electric fork type damper barrel bearing extractor 1 is driven by the electric linear actuator 2 to be lowered. The mandrel 20 of the fork damper bucket bearing extractor 1 and the outer collet 10 thereof extend into the interior of the damper barrel 3, at which time the abutting portion 22 of the mandrel 20 extends out of the elastic jaw 12 of the collet 10, and The alignment of the conical section 221 of the abutment portion 22 of the mandrel 20 is utilized to facilitate the alignment of the bearing 3A into the damper barrel 3, and the abutting portion 22 of the mandrel 20 passes through the bearing in the damper barrel 3. 3A, the elastic jaws 12 of the collet 10 are guided by the guiding surface 123 of the hook portion 122 of the claw hook 121, and the spacing between the shaft portion 21 of the mandrel 20 and the elastic jaw 12, so that the elastic clip The claw 12 can be retracted by pushing the inner edge of the bearing 3A until the hook portion 122 at the end of the claw hook 121 of the elastic jaw 12 passes through the bearing 3A, and the claw hook 121 is expanded outward by the elasticity of the elastic jaw 12 itself. The claw hook 121 collides with the inner edge of the bearing 3A to generate a sound, and the hook portion 122 can hook against the lower edge of the bearing 3A. In this way, the user can confirm that the elastic jaw 12 has been hooked against the lower edge of the bearing 3A through the sound, and then stop the electric linear actuator 2 to drive the inverted fork damping bucket bearing extractor 1 to re-examine in a state where the inside of the damping barrel 3 cannot be visually observed. Into the damper barrel 3.

As shown in FIG. 6 and FIG. 7, after that, the electric linear actuator 2 drives the inverted fork type damper bucket bearing extractor 1 to move upward, wherein the mandrel 20 is first moved upward through the adapter 30 to make the top of the mandrel 20 The ejector section 222 of the abutting portion 22 enters the elastic jaw 12 of the collet 10 and abuts against each of the claw hooks 121, so that each of the claw hooks 121 can be hooked to the lower edge of the bearing 3A in the damper barrel 3, and the electric linear actuator 2Continuously driving the inverted fork type damper barrel bearing extractor 1 to move upward, that is, the bearing is taken out from the damper barrel 3 by the elastic jaws 12 of the collet 10.

When there are more than two bearings 3A inside the damper barrel 3, the artificial inverted fork damper barrel bearing extractor can simultaneously extract two or more bearings 3A in the damper barrel 3 at a time in a state of sufficient length. It has good simplicity in the bearing extraction operation inside the damping barrel.

1‧‧‧Folding type damper bucket bearing extractor
10‧‧‧Clamp
100‧‧‧Event space
11‧‧‧ Tube
12‧‧‧Flexible jaws
121‧‧‧ claw hook
122‧‧‧ hook
123‧‧‧ guiding slope
13‧‧‧ trench
14‧‧‧End board
15‧‧‧through hole
16‧‧‧Limited retaining edge
20‧‧‧ mandrel
21‧‧‧ shaft section
22‧‧‧Abutment
221‧‧‧Cone section
222‧‧‧Pushing section
23‧‧‧Connecting Department
231‧‧‧Fixed screw holes
30‧‧‧Adapters
31‧‧‧Fixed end
32‧‧‧Connecting end
2‧‧‧Electric linear actuator
2A‧‧‧linear motion end
3‧‧‧damper bucket
3A‧‧‧ bearing
4‧‧‧ Fixing frame

1 is a perspective view showing a preferred embodiment of a preferred embodiment of the present inverted-risk damper bucket bearing extractor. 2 is a perspective exploded view of the preferred embodiment of the inverted fork type damper bucket bearing extractor of FIG. 1. 3 is a schematic cross-sectional view showing a preferred embodiment of the inverted fork type damper bucket bearing extractor shown in FIGS. 1 and 2. 4 is a reference view of an embodiment of the preferred embodiment of the inverted-fork type damper bucket bearing extractor shown in FIG. 1 in combination with an electric linear actuator for extracting a bearing in the inverted-fork type damper bucket. FIG. 5 is a schematic view showing the operation of the inverted fork type damper barrel bearing extractor of FIG. 4 extending into the inverted fork type damper to take out the bearing (1). Fig. 6 is a schematic view showing the operation of the inverted fork type damper barrel bearing extractor of Fig. 4 which is inserted into the inverted fork type damper to take out the bearing (2). Fig. 7 is a schematic view showing the operation of the inverted fork type damper bucket bearing extractor of Fig. 4 which is inserted into the inverted fork type damper to take out the bearing (3).

1‧‧‧Folding type damper bucket bearing extractor

10‧‧‧Clamp

100‧‧‧Event space

11‧‧‧ Tube

12‧‧‧Flexible jaws

121‧‧‧ claw hook

122‧‧‧ hook

123‧‧‧ guiding slope

13‧‧‧ trench

14‧‧‧End board

15‧‧‧through hole

16‧‧‧Limited retaining edge

20‧‧‧ mandrel

21‧‧‧ shaft section

22‧‧‧Abutment

221‧‧‧Cone section

222‧‧‧Pushing section

23‧‧‧Connecting Department

231‧‧‧Fixed screw holes

30‧‧‧Adapters

31‧‧‧Fixed end

32‧‧‧Connecting end

Claims (7)

A reverse fork type damper bucket bearing extractor comprises: a collet having an active space formed therein, the collet comprising a tubular portion and an elastic jaw formed at one end of the tubular portion, the elastic jaw comprising a plurality of claw hooks, each of the claw hooks is a free end with respect to the other end of the tubular portion and has a hook portion; a spindle comprising a shaft portion and a top abutting portion at one end of the shaft portion, the mandrel is threaded In the cartridge and axially movable in the movable space of the cartridge, the abutting portion of the mandrel can be selectively moved to the outside of the elastic jaw of the cartridge to allow the elastic jaw to retract and push against the elastic clip The claw is radially expanded outward; an adapter is connected to the other end of the shaft portion of the mandrel relative to the top abutting portion, and can extend beyond the side end of the tubular portion of the collet, and the adapter is coupled with the mandrel . The inverted-fork type damper bucket bearing extractor according to claim 1, wherein the cylindrical portion of the collet has an end plate at one end away from the elastic jaw, a through hole is formed in the end plate, and a limit is formed at the edge of the through hole The retaining edge, the outer diameter of the shaft portion of the mandrel is smaller than the inner diameter of the movable space inside the cartridge and larger than the diameter of the through hole. The inverted fork type damper bucket bearing extractor according to claim 2, wherein the two ends of the adapter are respectively a fixed end portion and a connecting end portion, and the fixed end portion passes through the tubular portion side of the collet tube The through hole of the end is fixed to the shaft portion of the spindle, and the connecting end is located outside the clamp. The inverted-fork type damper bucket bearing extractor according to claim 3, wherein an outer diameter of the connecting end portion of the adapter member is larger than an outer diameter of the fixed end portion and a through hole diameter of the collet, the axis of the mandrel The rod portion is a connecting portion at the other end of the rod abutting portion, and a fixing screw hole is formed in the connecting portion, the outer peripheral surface of the fixing end portion of the adapter is formed with a thread, and the fixing end portion is screwed on the connecting portion. Secured in the screw hole. The inverted-fork type damper bucket bearing extractor according to any one of claims 1 to 4, wherein the claw hook of the collet hook forms a lead-out surface on the outer surface of the hook portion at the end thereof. The inverted-fork type damper bucket bearing extractor according to any one of claims 1 to 4, wherein the abutting portion of the mandrel comprises a conical section and a ejector section, and the ejector section is formed on the shaft portion At one end, the outer diameter of the ejector section is larger than the outer diameter of the shaft portion and smaller than the inner diameter of the movable space of the clamp cylinder, and the ejector section can selectively extend into the inner side of the elastic jaw of the clamp cylinder to push the claw hook with the hook portion toward the outer diameter To the expansion, the two ends of the conical section are respectively a large diameter end and a small diameter end, and the large diameter end is formed at the other end of the push top section, and the outer diameter of the large diameter end of the conical section is larger than the inner diameter of the movable space of the collet . The inverted-fork type damper bucket bearing extractor according to any one of claims 1 to 4, wherein a claw of the collet is hooked at an outer surface of a hook portion of the end thereof to form a guide slope, and the top of the mandrel is abutted The part comprises a conical section and a pushing top section, and the pushing top section is formed at one end of the shaft part, and the outer diameter of the pushing top section is larger than the outer diameter of the shaft part and smaller than the inner diameter of the movable space of the clamping cylinder, and the pushing top section can selectively extend The inner side of the elastic jaw of the insertion cylinder pushes against the claw hook with the hook portion and expands radially outward. The two ends of the conical section are respectively a large diameter end and a small diameter end, and the large diameter end is formed at the other end of the pushing top section. The diameter of the outer diameter of the large diameter end of the conical section is larger than the inner diameter of the movable space of the collet.