Drawing device

Abstract

The utility model relates to a puller, which belongs to the technical field of pullers and comprises a base, two ends of the top of the base are fixedly connected with support frames, and mounting grooves are arranged in the support frames. The drawing device has the advantages that when a workpiece is drawn, the lifting frame can be driven to move up and down through rotation of the first screw rod, the lifting frame can be more stable in the lifting process through the arrangement of the fixing rod, then the connecting base and the drawing foot can be driven to stretch into a hole of the workpiece, and then the workpiece is drawn through rotation of the second screw rod. The lifting frame is arranged on the sleeve to drive the sleeve to move up and down, then the connecting rod can be used for pushing the multiple drawing feet to be unfolded at the same time, the fixing bolt serves as the rotating axis, the workpiece can be driven to be separated from mechanical equipment along with rising of the lifting frame, and therefore the purpose of drawing the workpiece can be achieved; a worker only needs to use the assembly in the puller above, and other external tools are not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drawing device technical field especially relates to a drawing device. BACKGROUND

[0002] In the mechanical equipment maintenance work, often meet the need to disassemble blind hole cover, bearing, since the cover, bearing and blind hole cooperation generally exists certain interference, cover, bearing in the blind hole workpiece deep, with existing standard tool very difficult to disassemble down, therefore need to use to draw the drawing device.

[0003] At present, when bearing and other workpieces are drawn, two-jaw or three-jaw screw and the like are usually used, which fix the drawing foot in the drawing device and the workpiece hole, use a screwdriver to hold the drawing foot, limit the drawing foot from rotating, use a wrench to turn the nut, make the nut rotate on the screw rod, and use the drawing foot to draw the workpiece in the mechanical equipment out, but the above-mentioned drawing device needs more external tools, which is inconvenient in the daily use of the drawing device. SUMMARY

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a drawing device.

[0005] The technical scheme of the utility model is as follows: a drawing device, comprising a base, both ends of the top of the base are fixedly connected with support frames, the interiors of the support frames are all provided with mounting grooves, the interior of one of the mounting grooves is rotatably connected with a screw rod one, the interior of the other mounting groove is fixedly connected with a fixed rod, a lifting frame is arranged between the two support frames, the bottom of the lifting frame is fixedly installed with a connecting seat, the outer periphery of the connecting seat is provided with three drawing feet, the interior of the lifting frame is rotatably installed with a screw rod two, the outer side of the screw rod two is threadedly connected with a sleeve, the outer side of the sleeve is equidistantly rotatably connected with connecting rods, and the ends, away from the sleeve, of the connecting rods are all rotatably connected with corresponding drawing feet.

[0006] Through the rotation of the screw rod one, the lifting frame is driven to move up and down, the connecting seat and the drawing feet can be driven to extend into the workpiece hole, the sleeve is driven to move up and down through the rotation of the screw rod two, and the connecting rods can be used to push a plurality of drawing feet to expand at the same time, so that the workpiece can be separated from the mechanical equipment as the lifting frame rises, thereby achieving the purpose of drawing the workpiece.

[0007] As a preferred embodiment, the outer side of the connecting seat is provided with a disassembling assembly, the disassembling assembly comprises three fixed bolts arranged on the outer periphery of the connecting seat, the connecting seat and the drawing feet are connected through the fixed bolts, and the drawing feet are rotatably connected with the fixed bolts.

[0008] By using the fixed bolt, the drawing foot can be disassembled from the drawing device, and the damaged drawing foot can be conveniently replaced and maintained.

[0009] As a preferred embodiment, the screw rod one is threadedly connected with the lifting frame, and the lifting frame is slidingly connected with the outer side of the fixing rod.

[0010] By using the above technical scheme, it is ensured that the lifting frame can normally operate.

[0011] As a preferred embodiment, the bottom end of the screw rod two is threadedly connected with a limiting piece, and the limiting seat is fixedly connected between the two support frames.

[0012] By using the above technical scheme, the movement of the sleeve can be limited by the limiting piece.

[0013] As a preferred embodiment, the top end of the screw rod two penetrates the inside of the limiting seat and is fixedly connected with an adjusting knob.

[0014] By using the above technical scheme, the screw rod two can be rotated by the adjusting knob.

[0015] As a preferred embodiment, the top of the screw rod one extends to the outer side of the support frame and is fixedly connected with a hand wheel.

[0016] By using the above technical scheme, the screw rod one can be rotated by the hand wheel, and the drawing process is more labor-saving.

[0017] As a preferred embodiment, the bottom end of the drawing foot is provided with a protruding block.

[0018] By using the above technical scheme, the connection between the drawing foot and the workpiece is improved.

[0019] Compared with the prior art, the utility model has the advantages and positive effects that,

[0020] 1. In the utility model, the rotation of the screw rod one drives the lifting frame to move up and down, thereby driving the connecting seat and the drawing foot to extend into the workpiece hole, and the rotation of the screw rod two drives the sleeve to move up and down, thereby driving the connecting rod to push a plurality of drawing feet to expand at the same time, and taking the fixed bolt as the rotation axis, the workpiece is separated from the mechanical equipment along with the lifting frame rising, so that the drawing purpose of the workpiece can be achieved, and in the above drawing process, the staff only needs to use the components in the upper drawing device, without the help of other external tools, and the utility model is more convenient to use.

[0021] 2. The utility model discloses, through the use of fixed bolt and limiting piece, can be pulled out the foot from the puller and is disassembled, and further convenient to the damaged puller foot is replaced and is maintained to the recovery to the workpiece pull effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 Provide a kind of overall perspective drawing of puller for the utility model;

[0023] Fig. 2 Provide a kind of side view of puller for the utility model;

[0024] Fig. 3 Provide a kind of connecting seat and puller foot structure schematic view of puller for the utility model.

[0025] Legend: 1, base; 2, support frame; 3, installation slot; 4, screw one; 5, lifting frame; 6, limit seat; 7, hand wheel; 8, fixed rod; 9, connecting seat; 10, fixed bolt; 11, puller foot; 12, sleeve; 13, connecting rod; 14, screw two; 15, limiting piece. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0027] REFERENCE Figs. 1-3The utility model provides a kind of puller, including base 1, the top of base 1 both ends are fixedly connected with support frame 2, the inside of support frame 2 is all provided with installation groove 3, the inside of one of installation groove 3 is rotatably connected with screw one 4, the inside of another installation groove 3 is fixedly connected with fixed rod 8, lifting frame 5 is arranged between two support frames 2, the bottom of lifting frame 5 is fixedly installed with connecting seat 9, the outer periphery of connecting seat 9 is provided with three puller feet 11, the inside of lifting frame 5 is rotatably installed with screw two 14, the outside of screw two 14 is threadedly connected with sleeve 12, the outside of sleeve 12 is equidistantly rotatably connected with connecting rod 13, the end of connecting rod 13 away from sleeve 12 is rotatably connected with corresponding puller foot 11, when workpiece is pulled, the rotation of screw one 4 can drive lifting frame 5 to move up and down, and the setting of fixed rod 8 can make lifting frame 5 more stable during lifting, to drive connecting seat 9 and puller foot 11 to extend into workpiece hole, immediately, the rotation of screw two 14 is used to drive sleeve 12 to move up and down, to drive several puller feet 11 to expand simultaneously using connecting rod 13, and using fixed bolt 10 as rotation axis, with the rising of lifting frame 5, workpiece is separated from mechanical equipment, to realize the purpose of pulling workpiece, and during the above-mentioned pulling process, staff only needs to use the components in the upper puller, without the aid of other external tools, more convenient and fast to use.

[0028] Specifically, the outside of connecting seat 9 is provided with disassembling assembly, the disassembling assembly includes three fixed bolts 10 arranged on the outer periphery of connecting seat 9, the use of fixed bolt 10 can disassemble puller foot 11 from the puller, to facilitate the replacement and maintenance of damaged puller foot 11, to restore the pulling effect on workpiece, connecting seat 9 and puller foot 11 are connected by fixed bolt 10, puller foot 11 is rotatably connected with fixed bolt 10, screw one 4 is threadedly connected with lifting frame 5, lifting frame 5 is slidably connected with the outside of fixed rod 8, the bottom end of screw two 14 is threadedly connected with limiting piece 15, the setting of limiting piece 15 can limit the movement of sleeve 12, and limiting piece 15 is in threaded mode, so that staff can disassemble sleeve 12 from screw two 14, limiting seat 6 is fixedly connected between two support frames 2.

[0029] Specifically, the top end of screw two 14 penetrates the inside of limiting seat 6 and is fixedly connected with adjusting knob, the setting of adjusting knob facilitates the rotation of screw two 14, the top of screw one 4 extends to the outside of support frame 2 and is fixedly connected with hand wheel 7, to facilitate the rotation of screw one 4, which is labor-saving during pulling, the bottom end of puller foot 11 is provided with protruding block, to improve the connection firmness of puller foot 11 and workpiece.

[0030] Working principle: first, in the workpiece drawing, the staff can be placed on the workpiece drawing above the need, immediately, turn the hand wheel 7, through the rotation of screw rod 4, drive the lifting frame 5 to move down, and through the setting of fixed rod 8, can make the lifting frame 5 more stable in the lifting process, in turn, can drive the connecting seat 9 and the drawing foot 11 into the workpiece hole, immediately, the staff through the adjusting knob drive screw rod 14 to rotate, to drive sleeve 12 to move down, in turn, can use connecting rod 13 to push several drawing feet 11 to expand at the same time, and use the drawing foot 11 and the workpiece hole abuts, then, the staff can reverse rotation hand wheel 7, in turn, can realize the drawing purpose of workpiece through the lifting of lifting frame 5, so as to realize the drawing purpose of workpiece, and in the above drawing process, the staff only needs to use the hand wheel 7 and the adjusting knob in the upper drawing device, without the aid of other external tools, it is more convenient to use.

[0031] In the description of the present application, it should be explained that, unless otherwise explicitly provided and limited, the terms "installation", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication between two elements, for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0032] The above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A puller, comprising a base (1), characterized in that: The base (1) has a support frame (2) fixedly connected to both ends of the top. The support frame (2) has an installation slot (3) inside. One of the installation slots (3) is rotatably connected to a screw (4), and the other installation slot (3) is fixedly connected to a fixing rod (8). A lifting frame (5) is provided between the two support frames (2). A connecting seat (9) is fixedly installed at the bottom of the lifting frame (5). Three pull feet (11) are provided on the outer periphery of the connecting seat (9). A screw (2) is rotatably installed inside the lifting frame (5). A sleeve (12) is threadedly connected to the outer side of the screw (2). A connecting rod (13) is rotatably connected to the outer side of the sleeve (12) at equal intervals. The end of the connecting rod (13) away from the sleeve (12) is rotatably connected to the corresponding pull foot (11).

2. The puller according to claim 1, characterized in that: The outer side of the connecting seat (9) is provided with a disassembly assembly, which includes three fixing bolts (10) disposed on the outer periphery of the connecting seat (9). The connecting seat (9) and the pull-out foot (11) are connected by the fixing bolts (10), and the pull-out foot (11) is rotatably connected to the fixing bolts (10).

3. A puller according to claim 1, characterized in that: The screw (4) is threadedly connected to the lifting frame (5), and the lifting frame (5) is slidably connected to the outer side of the fixed rod (8).

4. A puller according to claim 1, characterized in that: The bottom end of the screw (14) is threadedly connected to a limiting member (15), and the two support frames (2) are fixedly connected to a limiting seat (6).

5. A puller according to claim 1, characterized in that: The top end of the screw 2 (14) penetrates the interior of the limiting seat (6) and is fixedly connected to an adjustment knob.

6. A puller according to claim 1, characterized in that: The top of the screw (4) extends to the outside of the support frame (2) and is fixedly connected to a handwheel (7).

7. A puller according to claim 1, characterized in that: Each of the pull-out feet (11) has a protrusion at its bottom end.

Images