(1) Puller
It rotates the double-ended screw 2 (one end is a left-hand thread, the other end is a right-hand thread) through the handle l, and uses the lever principle to generate a pulling and unloading action to pull out the workpiece 3.
(2) Jack for shaft
The upper plate of the bow frame 3 is drilled and welded with the nut 2, and a U-shaped groove is opened on the lower plate, and the width of the groove is determined by the journal. A reinforcing rib 4 is welded on both sides of the bow frame 3 . A series of multi-purpose flat plates with a slot width of 6 (6<B) can be prepared. When using, select the corresponding slot according to the diameter of the shaft, and stack them on the u-shaped slot of the arch frame 3, so that a pair of arches can be made. The frame is suitable for a variety of different shaft diameter needs.
(3) Puller for hole
The lower end of the expansion sleeve 4 crosses the opening, and the diameter should be slightly smaller than the inner diameter of the pulled part. Rotate the nut 3 to make the conical head screw 5 installed on the bracket 2 rise, the expansion sleeve 4 expands, and hook the pulled part 6 (be careful not to expand too tightly), and then rotate the nut to pull out the parts in the hole.
(4) Tapered roller bearing puller
The clamp 4 is two halves cut along the centerline after being integrally processed by an ordinary lathe. When the outer diameter of the spline shaft spline part is the same as the outer diameter of the bearing inner ring, in order to make the clamp grip the bearing inner ring more firmly, the inner hole of the clamp can also be processed into the form of a spline sleeve. When in use, clamp the two half clamps 4 to the drawn tapered roller bearing 6, cover the outer hoop 5, and use the small shaft 3 to connect the tie rod 1 and the two half clamps 4. The tapered roller bearing 6 can be pulled out by hitting it backward with the striker 2.
(5) Tools for pulling the outer ring of the bearing
The outer ring of the tapered roller bearing is installed at both ends of the gear of the ordinary lathe. The hook of the tool is hooked to the end face of the outer ring of the bearing, and the outer ring of the bearing can be pulled out by rotating the handle at the right end. If the puller cannot pull out the bearing outer ring, it is necessary to partially cool the bearing outer ring with dry ice at the same time, and quickly pull out the bearing outer ring from the gear.
(6) Bearing puller without through hole
The arc hook 1 and the bobbin 3 are fastened into one with the screw 2, and the bolt 4 is screwed into the screw hole of the bobbin 3. When pulling and unloading the bearing, put two symmetrical arc hooks into the bearing hole seat. And extend the bobbin between the two draw hooks, and screw in the bolt with a wrench 4． Then the bearing 8 can be removed from the non-through hole of the bearing mounted on the oil tank casing 6 . If the length of the bolt 4 is not enough, an extension shaft 5 with a diameter slightly smaller than the hole diameter of the bobbin 3 can be placed at the head end of the bobbin 3.
(7) Bushing puller for non-through holes
Bushing bore and d. For clearance fit, such as ratio d. Large 2.5 ~ 4mm. When in use, make the elastic hook nut 1 radially shrink and insert it into the inner diameter of the bushing, and make the four hooks just hang on the inner end face of the village sleeve. At this time, hold the stop wrench 2 in one hand and the other Hold the rotary wrench 4 and turn it clockwise. When the bolt ejector rod 3 reaches the bottom of the non-through hole, the bushing will be pulled out together with the elastic hook nut l.
(8) Screw extractor
It is a special tool for taking out broken head screws. Its shape is similar to that of a taper reamer. A is the blade, the shape is a spiral with a taper, left-handed, and the number of spiral lines is generally 4. From the perspective of the normal section, the curvature is small, and the G position plays a squeezing role during work. The blade has high hardness, up to about 50HRC. When using it, first drill a small hole in the center of the broken screw. The blade can be inserted by 1/2. Then turn the extractor counterclockwise to remove the screw.