CN205989292U - A kind of drawing extracting tool - Google Patents

Abstract

The utility model belongs to the technical field of disassembly and provides a pulling disassembly tool. The proposed pulling and dismounting tool includes a lead screw (1), a nut (2) and a hook rod (3); the two ends of the lead screw (1) protrude from the nut (2), and the lead screw ( Both ends of 1) have a square for connecting with a wrench; the outer surface of the nut (2) has support bodies (7) uniformly distributed along the circumference, and the support body (7) is a rhombus with a round hole in the center; The center of the hook rod (3) has a through hole; the two ends of the hook rod (3) have hook claws respectively, and the hook claws at both ends of the hook rod are symmetrical to the center; the hook rod (3) is a support body corresponding to three (7) There are three sets; each of the hook rods (3) is hinged to the corresponding support body (7) through the connecting plate (4). The utility model realizes the drawing and dismounting of various parts with interference fit, and solves the problem of single function of many drawing tools.

Description

A pull-out tool

technical field

The utility model belongs to the technical field of disassembly, in particular to a pulling disassembly tool.

Background technique

Among the running parts of the diesel engine, the assembly of many parts is interference fit. Once these interference fit parts are damaged, they need to be disassembled and replaced. It is not easy to disassemble these parts. Usually, hammers and pliers are used. Wait for the tools to cooperate with each other to pull it out or pull it out. This method is laborious and laborious, and it is easy to cause damage to the non-destructive parts during the disassembly process. For this type of problem, there are two types of tooling tools currently used, one is disassembly by means of external grasping tools; the other is disassembly by internal pulling. Both methods are to fix the parts first, and then carry out external grasping or internal pulling to disassemble. For the above mechanical pulling and dismantling tools, there is also a hydraulic pulling and dismantling tool. The hydraulic pulling and dismantling tools are expensive and complicated to use and maintain. This kind of tooling tools are generally special drawing tools, which are also aimed at the disassembly of one or one type of parts with interference fit. The versatility is not strong, and the function is relatively single.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to propose a pulling and dismounting tool.

For realizing above-mentioned utility model purpose, the technical scheme that the utility model adopts is as follows:

A drawing and disassembling tool, the drawing and disassembling tool includes a lead screw, a nut and a hook rod; both ends of the lead screw protrude from the nut, and both ends of the lead screw have A square used to connect with a wrench; the outer surface of the nut has support bodies uniformly distributed along the circumference, and the support bodies are diamond-shaped with a round hole in the center; the center of the hook rod has a through hole, And the axis of the through hole is perpendicular to the axis of the hook bar; the two ends of the hook bar are respectively provided with hooks for hooking parts when the parts are disassembled, and the hooks at the two ends of the hook bar are in the shape of The center is symmetrical; the three hook rods are set corresponding to the three supporting bodies; each of the hook rods is hinged to the corresponding supporting body through a connecting plate; there are two connecting plates; The upper and lower ends of the two connecting plates have through holes for bolts to pass through; there are two bolts, one of which passes through the through hole on the upper end of one of the connecting plates and the round hole in the center of the hook rod. 1. The through hole at the top of the other connecting plate is fastened by a nut. The other bolt passes through the through hole at the top of one of the connecting plates, the round hole in the center of the support body, and the through hole at the top of the other connecting plate, and is tightened by a nut. solid, so that the connecting plate and the corresponding supporting body are hinged as a whole.

The utility model proposes a drawing and dismantling tool. By adopting the above-mentioned technical scheme, it can not only grasp the outer edge of the parts directly for drawing, but also can go deep into the hole to pull the parts, so as to realize the The drawing and disassembly of the parts of Yingying solves the problem of single function of many drawing tools, and has the characteristics of simple structure, convenient operation and good versatility.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the screw rod in the utility model.

Fig. 3 is a schematic diagram of the structure of the nut in the utility model.

Fig. 4 is a structural schematic diagram of the hook rod in the utility model.

Among the figure: 1, screw mandrel, 2, nut, 3, hook rod, 4, connection plate, 5, bolt, 6, nut, 7, support body.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, and in conjunction with Figure 2, a drawing disassembly tool, the drawing disassembly tool includes a lead screw 1, a nut 2 and a claw rod 3; both ends of the lead screw 1 are extended Out of the nut 2, and at both ends of the lead screw 1 there is a square for connecting with a wrench; in conjunction with Figure 3, the outer surface of the nut 2 has support bodies 7 uniformly distributed along the circumference, so The supporting body 7 is a rhombus with a round hole in the center; with reference to Fig. 4, the center of the hook rod 3 has a through hole, and the axis of the through hole is perpendicular to the axis of the hook rod; the hook rod 3 The two ends of each have hooks for hooking parts when disassembling parts, and the hooks at the two ends of the hook bar are symmetrical to the center; the hook bar 3 is provided for the corresponding three support bodies 7 Each of the hook rods 3 is hinged with the corresponding support body 7 through the connecting plate 4; the connecting plate 4 is two pieces; the upper and lower ends of the two connecting plates 4 have a A through hole through which the bolt 5 passes; the bolt 5 is two, and one of the bolts 5 passes through the through hole at the top of one of the connecting plates, the round hole at the center of the hook rod, and the through hole at the top of the other connecting plate, And fastened by a nut, another bolt passes through the through hole at the top of one of the connecting plates, the round hole at the center of the support body, and the through hole at the top of the other connecting plate, and is fastened by a nut 6, so that the connecting plate and the The corresponding supporting body is hinged as a whole.

When grabbing parts, hook the edge of the part with the hook of the hook rod 3, and the screw rod 1 withstands the middle part of the part, and tighten the screw rod 1 by hand so that the hook rod 3 touches the support body of the nut At the same time, make each claw hook the edge of the component, and then use a wrench to twist the square column of the screw rod 1, and pull out the interference fit component by applying force.

When pulling the part inside, put the pulling disassembly tool into the hole, hook the edge of the part with the claw of the hook rod 3, and the screw rod 1 withstands the middle part of the part, and tighten the screw rod 1 by hand. Make the hook rod 3 touch the edge of the supporting rhombic body of the support nut 2, and at the same time make each hook hook the edge of the component, and then use a wrench to twist the square column of the screw rod 1, and apply force to achieve the pull-out interference fit parts.

Claims (1)

1. a kind of drawing extracting tool, described drawing dismantling device includes leading screw（1）, nut（2）With hook claw bar（3）；Institute State leading screw（1）Two ends all stretch out described nut（2）, and in leading screw（1）Two ends be respectively provided with order to be connected with spanner four Cube；Described nut（2）Periphery on there is the supporter being uniformly distributed along the circumference（7）, described supporter（7）Centered on have The rhombus of circular hole；Described hook claw bar（3）Center there is through hole, and the axis of described through hole is perpendicular to the axis hooking claw bar；Institute State hook claw bar（3）Two ends be respectively provided with order to dismantle part when hook pawl part hook pawl, and hook claw bar two ends described in hook Pawl is centrosymmetric；Described hook claw bar（3）Supporter described in corresponding three（7）Three of setting；Each described hook pawl Bar（3）By connecting plate（4）With corresponding supporter（7）Hinged；Described connecting plate（4）For two pieces；Two pieces of described connections Plate（4）Upper end, lower end is respectively provided with order to bolt（5）The through hole passing through；Described bolt（5）For two, one of bolt （5）The through hole passing through one piece of connecting plate upper end, the circular hole hooking claw bar center, the through hole of another piece of connecting plate upper end, and by Nut fastens, and another bolt passes through the through hole of one piece of connecting plate upper end, the circular hole at supporter center, another piece of connecting plate The through hole of upper end, and by nut（6）Fastening, makes described connecting plate be articulated as one with corresponding supporter.