CN203003792U

CN203003792U - Stud dismounting tool

Info

Publication number: CN203003792U
Application number: CN 201220701785
Authority: CN
Inventors: 苏凤宇; 寇春荣; 成红兵
Original assignee: Xuji Group Co Ltd; Xuchang Xuji Wind Power Technology Co Ltd
Current assignee: Xuji Group Co Ltd; Xuchang Xuji Wind Power Technology Co Ltd
Priority date: 2011-12-22
Filing date: 2012-12-18
Publication date: 2013-06-19
Anticipated expiration: 2022-12-18

Abstract

The utility model relates to a stud dismounting tool. One end of a tool body is in threaded connection with a fastening end of a stud, the other end of the tool body is in coaxial threaded connection with a locking bolt for locking the stud, and corresponding locking threads are machined on the inner wall of the tool body. The screwing direction of the locking threads and the connection threads are opposite, so that during usage, workers can lock the fastening end of the stud on the tool body through the locking bolt and screw the locking bolt continuously to drive the stud to screw off a connection piece through the tool body, and the stud is then dismounted. As in the whole dismounting process, and the acting force of the tool applied to the fastening end of the stud only comprises threaded connection acting force and locking force, outer threads of the fastening end of the stud cannot be damaged.

Description

The studs extracting tool

Technical field

The utility model relates to the extracting tool of a kind of studs in the mechanical assembly technique field.

Background technology

Studs is connected in mechanical assembling field very general application.It is to come the fastening part that is connected with studs, packing ring, tool body that studs connects, thereby it is too thick or because structural restriction should not be used bolted occasion to make the studs connection can be applicable to be connected part.

Wherein, the end that is connected in the screwed hole of part of whole precessions of studs is called the precession end; Another is called the fastening end in order to the tightening tool body end.During connection, the staff need to the screw with the whole precession base part of precession end of double-screw bolt in, then put another connected piece, then put packing ring, the tightening tool main body namely realizes the connection of two connectors.When needs dismountings studs, because the fastening end of studs also is processed with external screw thread, if therefore do not adopt other servicing unit, rely on merely the strength of staff's hand, be not easy studs is disassembled from connector.at present, in machinery assembles occasion mostly, the staff can adopt the duplexing tool main body method of piecing together to dismantle studs, the opposite tool body of thread rotary orientation of the fastened tools main body that namely is threaded in the fastening end of studs, the staff makes the link of studs screw off from connector by tightening this tool body, but due to when this tool body screws, this tool body will destroy with the joint of the fastened tools main body helicitic texture with the fastening end of studs, make the serviceability of studs be restricted or lose, even when being threaded of link is stuck, in screwing the process of this tool body, the fastening end of bolt can be broken, thereby brought great inconvenience to assembly work.

The utility model content

The utility model proposes a kind of studs extracting tool, be intended to solve in prior art in the process of dismounting studs the impaired problem of the external screw thread of the fastening end of studs.

The technical scheme of this studs extracting tool is as follows:

A kind of studs extracting tool, the tool body that comprises tubular, be processed with the connecting thread that is threaded for the fastening end of studs on the hole wall of the endoporus of one end of described tool body, be processed with the locking screw thread opposite with the rotation direction of connecting thread on the hole wall of the endoporus of the other end of described tool body, described tool body is in the locking bolt that the end coaxial threaded is connected between being connected with for locking studs and tool body that arranges of locking screw thread.

The endoporus of described tool body is shoulder hole, and described connecting thread is in the macropore section of described shoulder hole, and described locking screw thread is in the aperture section of described shoulder hole.

Has the gap between described connecting thread and locking screw thread.

The pitch of described connecting thread is greater than the pitch of described locking screw thread.

The axial length of the macropore section of described shoulder hole is less than the axial length of aperture section.

in the utility model, an end of tool body is threaded with the fastening end of studs, other end coaxial threaded is connected with the locking bolt that is threaded that is useful between locking studs and tool body, and be processed with corresponding locking screw thread on the inwall of tool body, because the rotation direction of locking screw thread and connecting thread is opposite, therefore in use, the staff can be locked on tool body by the fastening end of locking bolt with studs, then just can drive studs by tool body and screw off from connector by continuing to screw locking bolt, thereby reach the effect of dismounting studs, due in the process of whole dismounting, the active force of this instrumental purpose on the fastening end of studs only has active force and the coupling mechanism force that is threaded, therefore can not produce the external screw thread of the fastening end of studs and destroy, thereby solved in the prior art in the process of dismounting studs, the impaired problem of the external screw thread of the fastening end of studs.

Description of drawings

Fig. 1 is the structural representation of embodiment of the present utility model;

Fig. 2 is the syndeton schematic diagram of locking bolt and tool body in Fig. 1;

Fig. 3 is the structural representation of tool body in Fig. 1.

The specific embodiment

the embodiment of studs extracting tool of the present utility model: as shown in Figure 1 to Figure 3, this extracting tool mainly contains tool body 1 and locking bolt 2 consists of, wherein, tool body 1 has locking end 101 and link 102, be processed with connecting thread on the hole wall of link 101, locking end 102 is provided with locking structure, the locking screw thread opposite with the connecting thread rotation direction that this locking structure is mainly processed on the endoporus hole wall by locking end 102, and the locking bolt 2 that locking end 102 coaxial threaded connect consists of, and there is the gap between the two at locking screw thread and connecting thread.

In use, first the link 101 with tool body 1 is threaded with the fastening end of studs, then locking bolt 2 coaxial threaded are connected to the locking end 102 of tool body 1, make the end of locking bolt 2 and the fastening end extruding of studs, then continue to screw locking bolt 2, simultaneously, locking bolt 2 can drive the rotation of double head tool main body by tool body 1, until studs is screwed off from connector, namely realize the purpose of dismounting studs.

Claims

1. A double-ended stud removal tool is characterized in that: it comprises a cylindrical tool body, and the hole wall of the inner hole at one end of the tool main body is processed with a threaded connection for the fastening end of the double-ended stud. The connecting thread, the hole wall of the inner hole at the other end of the tool body is processed with a locking thread opposite to the connecting thread, and the tool body is coaxially threaded with a locking double thread at the setting end of the locking thread. Locking bolt that connects the head stud to the tool body.

2. The stud removal tool according to claim 1, characterized in that: the inner hole of the tool body is a stepped hole, the connecting thread is in the large hole section of the stepped hole, and the locking thread The small hole segment in the stepped hole.

3. The stud removal tool according to claim 1, characterized in that there is a gap between the connecting thread and the locking thread.

4. The stud removal tool according to claim 1, characterized in that: the pitch of the connecting thread is greater than the pitch of the locking thread.

5. The stud removal tool according to claim 1, wherein the axial length of the large hole section of the stepped hole is smaller than the axial length of the small hole section.