KR200285734Y1 - Gear puller - Google Patents

Abstract

The present invention relates to a manual gear puller which is used to quickly and easily separate gears and bearings from the rotating shaft of various industrial machinery. In the related art, the connection part of the lifting body and the plate is composed of bolts and nuts, and the locking jaw is reversed. Every time I changed the jam jaw, I repeatedly used bolts and nuts, which was inconvenient. In addition, the conventional gear puller is limited in size to separate the gears and bearings, etc. In order to separate larger gears and bearings, there was no choice but to change the gear puller suitable for it. Thus, the present invention constitutes six support protrusions of the lifting body at intervals of 60 degrees, and three of the six support protrusions are formed longer so that the long support protrusions and the short support protrusions are alternately arranged. Although only one can be used, this gear puller allows one to use two. In other words, if you want to remove a large gear of another work after a small bearing work, you do not need another gear puller. It is characterized by the ability to work across the plate pins, so that the jaws of jaws are formed in only one direction so that only the levers can be changed from the supporting protrusions of the lifting body without removing the bolts and nuts. The cap is placed under the center of the screw and the steel ball is placed inside the cap to rotate the center of the screw. The cap at the bottom is intended to provide a gear puller that reduces rotational friction by preventing it from rotating.

Description

Gear puller

The present invention relates to a gear puller, and a gear puller refers to a tool having two claws (two jaws) and three claws (three jaws) used to remove a gear and a bearing from an shaft.

When explaining the structure of the gear puller, it is composed of a lifting body having two hexagonal head screws and two supporting protrusions at intervals of 180 degrees and three support protrusions at intervals of 120 degrees. A pair of plates are formed at each end of the supporting protrusions of the two (two jaws) or three (three jaws) lifting bodies, so that the jaws are connected to the end of the plate and the center support portion is located at the bottom of the screw right when using the shaft. Put two jaws or three jaws on the outer diameter of the gear or bearing, and then rotate them with a wrench or spanner on the screw of the upper hexagon head, and the lifting body moves through the screw to remove the gear and bearing. will be

However, the conventional gear puller has the following problems.

In the conventional gear puller, the plate is connected to the elevating body and jaw portion with bolts and nuts, and it is very loosely fitted, so the cap on the bottom of the plate, jaw or screw moves differently from the user's intention. When changing the jaws of jaws, there was no choice but to use bolts and nuts. In addition, jaws of the gear puller jaws were formed in an opposite direction to the S-shape so that the jaws could be installed upside down according to the size and distance of the gears and bearings. The bolts and nuts must be loosened and tightened one by one, but the cap is attached to the bottom of the screw rod, but it was inclined sideways or turned like a screw rod screw rod.

The present invention has been devised to solve the above-mentioned conventional problems, forming six support protrusions of the lifting body at intervals of 60 degrees, three of which are longer, so that the long support protrusions and the short support protrusions alternately. The conventional gear puller is limited in size to separate gears and bearings, so to remove larger gears and bearings, the gear puller is changed to fit gear puller. Larger gears and bearings can be separated and the jaws of jaws are configured in one direction rather than in the opposite direction, and the jaws' jaw jaws and the adjusting holes are formed at different distances so that they can be adjusted according to the size of the object. The grooves and levers are formed on the supporting protrusions of the lifting body to halve the jaws of the jaws. To install in the direction, do not disassemble the bolts and nuts of the jaws. If you put the lever on the support protrusion of the lifting body, the plate pin will come out of the support protrusion groove and turn it immediately. The cap is covered on the bottom of the screw, but if the screw is rotated against the center support part, the cap is placed in the cap and the cap is stopped in place. The purpose is to make it very easy to separate and use.

1 is a perspective view showing a lifting body support protrusion of the gear puller as an embodiment of the present invention

Figure 2 is a schematic front view showing the structure of the gear puller as an embodiment of the present invention

Figure 3 is a schematic cross-sectional view showing the lower center of the screw as an embodiment of the present invention

** Description of the symbols for the main parts of the drawings **

(11); Hexagon head

(12); Gear

(13); Support

(15); Locking jaw 15A; Jam

(16); Joo

(17); Support

(18); Adjusting hole

20; Screw rod of screw

(21); pin

(22); Washa

(23); plate

25; volt

(27); Lifting body

30; cap

(31); Iron ball

(33); Leviathan

(35); spring

Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

Figure 1 is a perspective view of the lifting body support protrusion showing the structure of the gear puller as an embodiment of the present invention, Figure 2 is a schematic front view showing the structure of the gear puller as an embodiment of the present invention, Figure 3 As an example, a schematic cross-sectional view showing the interior of the cap 30 is shown.

As shown in Figures 1 to 3, a screw right (20) having a hexagonal head (11) at the top and a center support cap (30) at the bottom, and 6 at intervals of 60 degrees around the screw (20). Lifting body 27 having two support protrusions 13 and 17, and both symmetrical plates 23 assembled so that support protrusions 13 and 17 and jaws 16 of the lifting body 27 can be connected. And a gear puller having a jaw 16 having two adjusting holes to be assembled at the end of the plate 23 and having locking jaws 15 and 15a configured only in one direction at the upper and lower ends. 6 of the support protrusions (3) and (17) at intervals of 60 degrees and three of the support protrusions (13) are longer so that the long support protrusions and the short support protrusions are alternately arranged. Although the size is limited to separate the bearing and the bearing, the present invention has only one gear puller And a bearing and the like, and the jaws 16 and 15a of the jaws 16 are configured in only one direction on both sides of the jaw 16 and not in the opposite direction, so that both jaws 15 of the jaws 16 ( 15a) and the two adjustment holes 18 are formed to have different distances so that the working holes 18 can be adjusted according to the size of the object, and the grooves (13, 17) of the lifting body 32 and the lever 33 to install the catching jaws 15 and 15a of the jaws 16 in the opposite direction, the support protrusions of the lifting body 27 without disassembling the bolts and nuts of the jaws 16 one by one. (13) If only the lever 33 is inserted into the side 17, the plate pin 23 comes out of the support protrusions 13 and 17 grooves 32 and is turned straight to the support protrusions 13 and 17 grooves 32. The plate pin (23) is configured so that the work can be done very simply, and the cap (30) is covered on the bottom of the screw (20), but the center support portion Rotating the flow rain 20, the cap 30 also rotates along or away from the center support portion by placing the iron ball 31 in the cap 30 by screwing the screw 20 to rotate the cap 30 Silver stops in place and is configured to be convenient to use only by rotating the screw right 20, the support plate 13, 17 side plate 23 is the lever (33) of the support protrusion (13) (17) The gear tooth 12 is formed across the) and according to the size of the object, when the jaw 16 moves up and down, it is configured to be convenient by moving and stopping only accordingly.

As described above, the present invention has three out of six support protrusions formed longer, and the size of the conventional gear puller is limited to separating gears and bearings. Although the gear puller of the present invention can be replaced with a gear puller that is suitable for use, the larger gears and bearings can be removed immediately during operation, and the jaws of jaws are formed only in one direction, forming grooves and levers on the supporting protrusions. To install the locking jaw in the opposite direction, do not disassemble the bolts and nuts, and lift the support lever only, and the pin of the plate will come out of the support protrusion groove and turn straight in the opposite direction. It is easy to work simply by putting a metal ball in the cap of the lower part of the screw. A hexagonal head at the top is rotated using a wrench or spanner on the center support part of the cap, so resolution is also inclined to the side stops and in place using the obtained a very convenient and useful effect.

Claims (4)

Hexagon head (11) at the top and the screw (20) having a center support cap 30 at the bottom; A lifting body 27 having six supporting protrusions 13 and 17 spaced at intervals of 60 degrees around the screw right 20; Jaws 16 having two adjustment holes 18 formed therein and having locking jaws 15 and 15a protruding only in one direction on the upper and lower ends thereof; And In order to connect the support protrusions 13 and 17 and the jaws 16 of the lifting body 27, they are assembled to the support protrusions 13 and 17 and the jaws 16, and gear teeth 12 at one end thereof. Plate 23 is formed; Gear puller characterized in that configured to include. The support protrusions 13 and 17 of the lifting body 27 extending around the screw right 20 are alternately arranged with the long support protrusions 13 and the short support protrusions 17, respectively. The gear puller, characterized in that the support protrusions (13) and (17) are provided with grooves (32) and levers (33), respectively. According to claim 1, The jaw 16 is characterized in that the distance between the adjustment hole 18 of the jaw 16 and the locking jaw (15, 15a) is formed differently to perform the operation according to the size of the object. Said gear puller. The cap 30 of the lower end of the screw 20 is formed smaller than the diameter of the screw 20, and the iron ball 31 is disposed in the cap 30 so that only the screw can be rotated. The gear puller characterized in that.