TWI650211B - Axle puller - Google Patents

Abstract

The invention relates to an axle detacher comprising: a body, at least one positioning member, at least one hook arm and an impact member. The at least one positioning member is disposed on the body, and each of the positioning members is coupled to one of a plurality of bolts to be disassembled; the at least one hook arm is disposed on the body, and the at least one hook arm is disposed on the hook a hub of the object to be disassembled, the plurality of bolts are threaded through the hub; the impact member is movably disposed through the body in an impact direction, the impact member includes an impact end and a strike end, the impact end For abutment against the hub, the striking end is struck by a knock.

Description

Axle remover

The present invention relates to a disassembly device, and more particularly to an axle detacher.

The power transmission system of the automobile, such as the hub, the drive shaft, the hub, etc., is damaged. When the parts need to be replaced, the two parts that are assembled with each other are often encountered because they have not been disassembled, rusted, worn and deformed for a long time. The pieces cannot be disassembled and detached smoothly. In this case, the traditional practice is mostly professional and experienced maintenance personnel to beat different parts according to the situation, through the continuous back and forth to make the rusted surface that is sticky and welded to each other to achieve the purpose of separation.

However, not all maintenance personnel can perform accurate tapping. If the arbitrarily tapping method is apt to damage the parts, cause deformation of the parts, and lose assembly precision, even after long-term use, the mechanism of the relevant configuration of the wheel axle will be further damaged. .

Therefore, it is necessary to provide a novel and progressive axle detacher to further improve the disassembly manner to solve the above problems.

The main purpose of the present invention is to provide an axle detacher that is stably positioned on the object to be disassembled through the locating member, and at the same time, the hook body is hooked to the tray to be disassembled to continuously provide the plucking By force, and finally by hitting the impact member that has been aligned and abutted against the disk body, the welding joint can be broken by the impact force to achieve the purpose of disassembly.

To achieve the above object, the present invention provides an axle detacher comprising: a body, at least one positioning member, at least one hook arm, and an impact member. The at least one positioning member is disposed on the body, and the at least one positioning member is coupled to one of the plurality of bolts to be disassembled; the at least one hook arm is disposed on the body, and the at least one hook arm is hooked on the body a disk body of the object to be disassembled, the plurality of bolts are threaded through the disk body; the impact member is movably disposed through the body in an impact direction, the impact member comprising an impact end and a striking end, the impact The end portion is abutted against the disk body, and the striking end is provided with a knocking member; wherein the wheel detacher further includes an elastic member, the impact member further includes a limiting portion, the elastic member is disposed on the body and the limit Between the positions, when the impact member is pressed by the external force to press the elastic member, the elastic member serves to cause the impact end to have a tendency to move normally toward the disk body.

1‧‧‧ Ontology

11‧‧‧Slip unit

111‧‧‧First chute

112‧‧‧Second chute

12‧‧‧Parts

13‧‧‧ ring convex wall

14‧‧‧through holes

15‧‧ ‧ room

2‧‧‧ Positioning parts

21‧‧‧ Sockets

22‧‧‧ First Joint Department

3‧‧‧ hook arm

31‧‧‧arms

32‧‧‧Hooks

321‧‧‧First hook

322‧‧‧Second hook

33‧‧‧Second junction

4‧‧‧ impact parts

41‧‧‧ Impact end

42‧‧‧Beat end

43‧‧‧Limited

5‧‧‧Flexible parts

6‧‧‧ 环套

7‧‧‧To be dismantled

71‧‧‧Bolts

72‧‧‧ dish

73‧‧‧ Low Valley Department

74‧‧‧ Peak Department

8‧‧‧ Impact direction

1 is a perspective view of an embodiment of the present invention.

Figure 2 is an exploded view of Figure 1.

Figure 3 is a bottom view of the body.

4 and FIG. 5 are schematic views of the assembly to be removed according to an embodiment of the present invention.

Figure 6 is a side cross-sectional view of Figure 5.

The following is a description of possible embodiments of the present invention, but is not intended to limit the present invention. The scope of the invention to be protected is described first.

Referring to FIG. 1 to FIG. 6, a preferred embodiment of the present invention is shown. The axle detacher of the present invention comprises: a body 1, at least one positioning member 2, at least one hook arm 3 and an impact member 4.

The at least one positioning member 2 is disposed on the body 1 , and the at least one positioning member 2 is coupled to one of the plurality of bolts 71 of the object to be removed 7 . The at least one hook arm 3 is disposed on the body 1 , and the at least one hook arm 3 is hooked to the disk body 72 of the object to be removed 7 , and the plurality of bolts 71 are passed through the disk body 72 . The impacting member 4 is movably disposed through the body 1 in an impact direction 8. The impacting member 4 includes an impact end 41 and a striking end 42 for abutting against the disc body 72. 42 for a knock hit. The impact end 41 has a tapered column shape, and the portion of the impact end 41 having a smaller cross-sectional area is for abutting against the disk body 72 to increase the impulse per unit area, so that the disk body 72 is more likely to vibrate and sway. The sticking and welding (commonly known as seizing) is separated, and the striking end 42 is inflated to ensure that the knocking member can have a larger target for tapping.

In this embodiment, the axle detacher is used for a medium-sized, heavy-duty rear axle mechanism of the vehicle, wherein the object to be disassembled 7 is a hub, and the tray 72 is a one assembled on the hub. Hub plate, this type of hub is connected to a drive shaft (axle) that is interlocked with the differential. Therefore, the drive shaft can be pulled out from the hub by disassembling the hub through the axle detacher.

Preferably, the at least one positioning member 2 is detachably assembled to the body 1 , so that the at least one positioning member 2 can be separately assembled separately during use, which facilitates the at least one positioning member 2 to be fast and Accurately coupled to the bolt 71, and the user does not need to move and hold the entire axle detacher, which helps to greatly reduce the assembly burden. In detail, the at least one positioning member 2 includes a connecting portion 21 and a first connecting portion 22, the socket portion 21 is screwed and positioned on the bolt 71, and the first joint portion 22 is disposed. Connecting the body 1 , in use, the bolt 71 can be firstly coupled through the sleeve portion 21 , and after all the at least one positioning member 2 to be assembled are screwed, the at least one positioning member 2 can be transmitted through A joint portion 22 is linked The body 1 further enables the body 1 to be stably and securely held opposite the disk body 72, and allows the impact member 4 to be accurately aligned with the drive shaft for coaxial configuration.

Similarly, the at least one hook arm 3 is preferably detachably assembled to the body 1 to have the above advantages. Specifically, the at least one hook arm 3 includes an arm member 31, a hook member 32, and a second joint portion 33. The hook member 32 and the second joint portion 33 are coupled to opposite ends of the arm member 31. The second joint portion 33 is connected to the body 1 , and the hook member 32 is hooked to the tray body 72 . When in use, the hook member 32 is hooked against the disk body 72, and then the body 1 is coupled through the second joint portion 33, and then tightly pressed, so that the hook member 32 can continuously provide the pulling function. The force is applied to the disk body 72, so that when the user strikes the impact member 4 to make the disk body 72 shake, the undesired sticking portion can be more easily broken and separated. The disk body 72 which is pulled out by the hook arm 3 is blocked by the body 1, so that the user is not hit by the disk 72 which is suddenly separated and bounced, and a safe use environment can be obtained.

In this embodiment, the first joint portion 22 and the second joint portion 33 are threaded segments, so that the positioning member 2 and the hook arm 3 are tightly coupled to the body 1 through the nut, and are rotated. The dynamic clamping nut can improve the stability of the positioning of the body 1 and the pulling force of the hook arm 3. Moreover, the arm member 31 has a cylindrical shape so as to smoothly pass through the disk body 72 or surrounding articles without unintended card interference.

Preferably, the hook member 32 includes a first hook portion 321 and a second hook portion 322. One of the first and second hook portions 321, 322 is abutted against the impact direction 8. a disk body 72, wherein the first hook portion 321 has a convex shape for projecting into a trough portion 73 of the object to be removed 7, and the second hook portion 322 has a concave shape for the object to be removed 7 One of the peaks 74 extends. In other words, the user can select the first hook portion 321 which is convex or the second hook portion 322 which is concave in view of the surrounding condition of the hook member 32, so that the hook member 32 is desired. A stable hook is attached to the object to be removed 7.

It is to be noted that the body 1 is provided with at least one sliding unit 11 , and the number of the at least one sliding unit 11 , the at least one positioning member 2 and the at least one hook arm 3 is equal, at least one of the sliding The shifting unit 11 includes a first sliding slot 111 and a second sliding slot 112. The positioning member 2 is slidably slidably disposed on the second sliding slot 112. The hooking arm 3 is positionally Sliding in the first chute 111. In this way, the positioning member 2 and the hook arm 3 can be adjusted and controlled to be coupled to the body 1 to match various positions of the bolt 71 and the disk body 72 of different radial dimensions. The length of the first sliding slot 111 is greater than the length of the second sliding slot 112, so that the hook arm 3 is hooked on the outer side of the disk body 72.

It can be understood that the body 1 is further provided with a consistent hole 14 , the impacting member 4 is movably inserted into the through hole 14 , the at least one sliding unit 11 , the at least one positioning member 2 and the at least one hook The number of the arms 3 is two, and the two slip units 11 are symmetrically arranged around the through hole 14. The cross-sectional area of the through hole 14 is smaller than the maximum cross-sectional area of the striking end 42 so as to prevent the impact member 4 from falling to the ground due to inattention during the taking process.

Further, the body 1 further extends a ring-shaped convex wall 13 surrounding the through-hole 14 , and the impact member 4 extends into the annular convex wall 13 and then passes through the through-hole 14 , and the annular convex wall 13 can The impact member 4 is protected from being in contact with foreign objects during the movement, that is, the impact member 4 can be smoothly moved. Moreover, the annular convex wall 13 can be laterally impacted around the impact member 4, thereby ensuring the structural integrity of the impact member 4. In addition, the annular convex wall 13 can restrain the impact member 4 from being restrained, so that the impact member 4 can be surely moved in the impact direction 8 when subjected to an external force.

Further, the axle detacher preferably further includes an elastic member 5, the impact member 4 includes a limiting portion 43 disposed between the body 1 and the limiting portion 43 when the impact When the member 4 is pressed by the external force to press the elastic member 5, the elastic member 5 serves to cause the impact end 41 to have a tendency to move normally toward the disk body 72. In other words, it can be ensured that the impact end 41 can surely abut against the disk body 72, so that The impact force can be continuously transmitted from the impact member 4 to the disk body 72 to reduce structural damage, that is, the gap between the impact member 4 and the disk body 72 can be avoided to cause collision, thereby causing the impact force to be weakened. The surface structure of the disk 72 is damaged.

In the present embodiment, the annular convex wall 13 is connected with the body 1 to form a chamber 15 , and the elastic member 5 is sleeved with the impact member 4 , and the limiting portion 43 is embedded in the ring convex member. The impacting member 4 is adjacent to the impact end 41. When the impacting member 4 is pressed by the disc body 72 and retracted, the two ends of the elastic member 5 are elastically attracted to the chamber 15. Between the bottom wall and the limiting portion 43.

Preferably, a ring sleeve 6 is sleeved between the elastic member 5 and the limiting portion 43. The cross-sectional area of the ring sleeve 6 is larger than the cross-sectional area of the limiting portion 43 so that the ring sleeve 6 The force of the elastic member 5 can act on the stopper portion 43 in a comprehensive and even manner.

In another preferred embodiment, the axle detacher further includes at least one pressing member 12 disposed on the body 1. In the impact direction 8, the at least one pressing member 12 is pressed against one of the plurality of bolts 71. The contact area of the body 1 and the plurality of bolts 71 is increased, so that the bolt 71 can maintain the structural integrity, thereby improving the stability of the force application, the anti-swaying ability, and the relatively uniform force.

Specifically, the number of the at least one pressing member 12 is two, and the two pressing members 12 are symmetrically disposed with the through hole 14 as a center, and the contour of the pressing member 12 is equivalent to the second sliding. The outline of the slot 112. In addition, the center line of the first sliding slot 111 extends, the center line of the second sliding slot 112 extends, and the center line of the pressing member 12 passes through the center of the through hole 14, so that the body 1 and the plurality When the bolts 71 are coupled, they can be placed in a state of symmetrical stress to avoid deformation due to uneven force.

More specifically, the connection between the first sliding slot 111, the second sliding slot 112 and the pressing member 12 is generally "m", and the first sliding slot 111 is sandwiched between the first sliding slot 111. Between the second sliding slot 112 and the pressing member 12, the force generated by the positioning member 2, the pressing member 12 and the hook arm 3 can be relatively flat. All. Moreover, the angle between the center line of the first sliding slot 111 and the center line of the second sliding slot 112 is between 15 degrees and 30 degrees.

In summary, the axle detacher of the present invention is simple in operation, and can protect the bolt and the disc structure of the object to be disassembled during the disassembly process. Moreover, the pulling force is provided through the hook arm, and the impact is effectively combined with the impact member, and the entire disassembly process is simple and safe.

Claims (9)

An axle detacher includes: a body; at least one positioning member disposed on the body, the at least one positioning member is coupled to one of a plurality of bolts to be detached; at least one hook arm is disposed on the body The hook is disposed on one of the discs to be disassembled, and the plurality of bolts are threaded through the disc body; an impact member is movably disposed through the body in an impact direction, and includes an impact end and a striking end The impact end is abutted against the disk body, and the strike end is provided with a knocking member; wherein the wheel detacher further includes an elastic member, the impact member further includes a limiting portion, and the elastic member is disposed on the body And between the limiting portion, when the impact member is pressed by the external force to press the elastic member, the elastic member is used to make the impact end have a tendency to move normally toward the disk body. The axle detacher of claim 1, wherein the at least one locating member is detachably assembled to the body. The axle detacher of claim 2, wherein the at least one positioning member comprises a connected connecting portion and a first joint portion, the socket portion is screwed and positioned on the bolt, the first joint portion The body is connected to the body. The axle detacher of claim 1, wherein the at least one hook arm is detachably assembled to the body. The axle detacher of claim 4, wherein the at least one hook arm comprises an arm member, a hook member and a second joint portion, the hook member and the second joint portion being coupled to opposite ends of the arm member The second joint portion is connected to the body, and the hook member is hooked to the tray body. The axle detacher of claim 5, wherein the hook member includes an opposite first hook portion and a second hook portion, wherein one of the first and second hook portions is adapted to be in the impact direction Resisting the disk body, wherein the first hook portion has a convex shape for projecting into a trough portion of the object to be disassembled, and the second hook portion has a concave shape for one of the peaks to be disassembled The department reached into. The axle detacher of claim 1, wherein the body is provided with at least one sliding unit, the at least one sliding unit, the at least one positioning member and the at least one hook arm are equal in number, the at least one The sliding unit includes a first sliding slot and a second sliding slot disposed on the body, the positioning member is slidably slidably disposed on the second sliding slot, and the hooking arm is slidably positioned on the first sliding slot Chute. The axle detacher according to any one of claims 1 to 7, further comprising at least one pressing member disposed on the body, wherein the at least one pressing member is pressed against the plurality of bolts in the impact direction One. The axle detacher of claim 6 further comprising an elastic member and at least one pressing member disposed on the body, the impact member including a limiting portion, the elastic member being disposed on the body and the limiting portion When the impact member is pressed by the external force to press the elastic member, the elastic member is configured to cause the impact end to have a tendency to move normally toward the disk body; in the impact direction, the at least one pressing member is for Pressing one of the plurality of bolts; the at least one positioning member is detachably assembled to the body; the at least one positioning member comprises a connected connecting portion and a first joint portion, the socket portion is provided for The first joint is coupled to the body, and the first joint is coupled to the body. The body is provided with at least one sliding unit, the at least one sliding unit, the at least one positioning member and the at least one hook arm. The first sliding slot and the second sliding slot are disposed on the first sliding slot and the second sliding slot. The positioning member is slidably positioned on the second sliding slot. The hook arm is positionably Sliding in the first chute; the first joint portion and the second joint portion a threaded section, the body is further provided with a consistent hole, and the impacting member is movably inserted into the through hole, the at least one The number of the sliding unit, the at least one positioning member and the at least one hook arm is respectively two, and the two sliding units are symmetrically arranged around the through hole; the impact end is in the shape of a cone, the impact end The portion of the smaller cross-sectional area is for abutting against the disk body, the striking end is inflated, and the cross-sectional area of the through hole is smaller than the maximum cross-sectional area of the striking end; the body further extends to surround the through hole a ring-shaped convex wall, the impact member extends into the annular wall of the ring and then passes through the through hole; the annular convex wall is connected with the body to form a cavity, and the elastic member sleeves the impact member, the limit The positioning portion is embedded in the impact member, and the limiting portion is adjacent to the impact end. When the impact member is pressed by the disc body to retreat, the two ends of the elastic member are elastically biased. Between the bottom wall of the chamber and the limiting portion; a ring sleeve is disposed between the elastic member and the limiting portion, and the cross-sectional area of the ring sleeve is greater than the cross-sectional area of the limiting portion The number of the at least one pressing member is two, and the two pressing members are symmetrically arranged with the through hole as a center; the first sliding The center line extends, the center line of the second chute extends, and the center line of the pressing member passes through the center of the through hole; the first chute, the second chute, and the second pressing member The connection of the first chute is sandwiched between a second chute and a pressing member; the center line of the first chute and the second chute The angle of the center line is between 15 degrees and 30 degrees; the length of the first sliding slot is greater than the length of the second sliding slot; the contour of the pressing member is equivalent to the second sliding slot Contour; the arm is cylindrical.