A special-shaped bolt fixing device

Abstract

The utility model relates to the technical field of disassembly and assembly tools, and discloses a special-shaped bolt fixing device, which comprises a support body, a clamping column and a screw; the support body is U-shaped, and the clamping column is fixed to the end of the support body; the clamping column comprises a first positioning column and a second positioning column; the first positioning column is fixed to the inner wall of the head of the support body, a threaded hole is provided on the tail of the support body, and the second positioning column is fixed to the tail of the screw, and the screw is threadedly connected in the threaded hole; a centering groove is provided on the end surface of one axial side of the support body, and the second positioning column can be extended and retracted in the threaded hole at the tail of the support body, and the first positioning column and the second positioning column cooperate to clamp at the opening of the special-shaped bolt; the device is fixed to the special-shaped bolt by the clamping column, and when the special-shaped bolt is disassembled and assembled, the clamping column does not radially pass through the special-shaped bolt, and the clamping column will not squeeze the sensor cable in the special-shaped bolt; the utility model solves the problem that during the installation process of the special-shaped bolt dedicated to the bearing bush, the screwdriver squeezes the sensor cable, which easily causes damage to the sensor cable.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly and assembly tools, in particular to a special-shaped bolt fixing device. Background Art

[0002] The special-shaped bolts for turbine bearings are stud bolts with a through hole axially opened inside. The through hole is generally provided with a sensor cable. A flat-blade or plum-shaped screwdriver is often used to disassemble and assemble the special-shaped bolts. During the disassembly and assembly process, the screwdriver radially passes through the opening at the end of the special-shaped bolt, and the screwdriver is stuck in the opening, thereby rotating the special-shaped bolt. However, the sensor cable is arranged in the through hole. When the screwdriver radially passes through the opening at the end of the special-shaped bolt, the screwdriver will inevitably squeeze the sensor cable, which can easily cause damage to the sensor cable. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a special-shaped bolt fixing device, which solves the problem that during the installation of the special-shaped bolts for bearing bushes, the sensor cable is squeezed by a screwdriver, which easily causes damage to the sensor cable.

[0004] According to an embodiment of the utility model, a special-shaped bolt fixing device includes a support body; the support body is U-shaped, a clamping column is arranged at the end of the support body, and a centering groove is opened on the end face of one axial side of the support body, and the clamping column can be clamped in the opening of the special-shaped bolt.

[0005] Compared with the prior art, the utility model has the following beneficial effects: the end of the special-shaped bolt is arranged in the centering groove, and the support body can quickly find the center of the end of the special-shaped bolt, so that the clamping column is convenient for aligning the opening; the device is fixed on the special-shaped bolt by the clamping column, and when disassembling and assembling the special-shaped bolt, the clamping column does not radially pass through the special-shaped bolt, and the clamping column will not squeeze the sensor cable in the special-shaped bolt; the problem that the sensor cable is squeezed by the screwdriver during the installation of the special-shaped bolt for the bearing shell, which easily causes damage to the sensor cable, is solved.

[0006] Preferably, the clamping column includes a first positioning column and a second positioning column; the first positioning column is fixed on the inner wall of the support body head, and the second positioning column is detachably connected to the tail of the support body; the second positioning column can be telescoped on the tail of the support body, and the second positioning column cooperates with the first positioning column to be clamped in the openings on both sides of the radial direction of the special-shaped bolt.

[0007] The above technical solution has the following advantages: the second positioning column can be extended and retracted on the tail of the support body, which is convenient for fixing the device to the special-shaped bolt. During use, the device is not easy to fall off the special-shaped bolt, and is suitable for use in a space with limited space; the distance between the second positioning column and the first positioning column is adjustable, which is suitable for special-shaped bolts of different diameters; the first positioning column and the second positioning column are distributed in the openings on both sides of the special-shaped bolt, and the force is evenly distributed when fine-tuning the position of the special-shaped bolt.

[0008] Preferably, it also includes a screw; the second positioning column is fixed to the tail of the screw, a threaded hole is opened on the tail of the support body, and the screw is threadedly connected in the threaded hole.

[0009] The above technical solution has the advantages that the screw is threadedly connected to the support body, the position of the second positioning column is easy to adjust, and disassembly and assembly are convenient.

[0010] Preferably, the centering groove is a semicircular groove.

[0011] The above technical solution has the advantages that the circular groove is adapted to the shape of the end of the special-shaped bolt, which facilitates the rapid positioning of the clamping column with the opening.

[0012] Preferably, they are all rectangular posts with a square cross section.

[0013] The above technical solution has the advantage that the first positioning column and the second positioning column are adapted to the shape of the opening of the special-shaped bolt, so as to be fixed at the end of the special-shaped bolt.

[0014] Preferably, a torque wrench is arranged on the outer side of the head of the support body, and the torque wrench is opposite to the first positioning column.

[0015] The above technical solution has the advantage that the torque wrench allows the worker to tighten the special-shaped bolts with a suitable torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a special-shaped bolt fixing device according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a special-shaped bolt according to an embodiment of the utility model;

[0018] Figure 3 for Figure 2 Right view of . DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] The reference numerals in the drawings of the specification include: a support body 1 , a centering groove 101 , a screw 2 , a first positioning column 3 , a first and a second positioning column 4 , a torque wrench 5 , a special-shaped bolt 6 , an opening 601 , and a sensor cable 7 .

[0021] Example 1

[0022] like Figure 1-3As shown, the embodiment of the utility model proposes a special-shaped bolt fixing device, which includes a support body 1, a clamping column and a screw 2; the screw 2 is a hexagonal screw 2; the support body 1 is U-shaped, and the clamping column is fixed to the end of the support body 1; the clamping column includes a first positioning column 3 and a second positioning column 4; the first positioning column 3 and the second positioning column 4 are both rectangular clamping columns, and their cross-sections are square; the first positioning column 3 is fixed to the inner wall of the head of the support body 1, and a torque wrench 5 is arranged on the outer side of the head of the support body 1, and the torque wrench 5 is opposite to the first positioning column 3; a threaded hole is opened at the rear of the support body 1, and the second positioning column 4 is fixed It is fixed at the tail of the screw 2, and the screw 2 is threadedly connected in the threaded hole. The first positioning column 3 and the second positioning column 4 are located on the same circle and the same diameter. A semicircular centering groove 101 is provided on the end face of one axial side of the support body 1. The first positioning column 3 and the second positioning column 4 are clamped in the openings 601 on both sides of the radial direction of the special-shaped bolt 6. The second positioning column 4 can be extended and retracted in the threaded hole at the tail of the support body 1. The second positioning column 4 cooperates with the first positioning column 3 to be clamped in the opening 601 of the special-shaped bolt 6. The distance between the second positioning column 4 and the first positioning column 3 is adjustable, which is suitable for special-shaped bolts 6 of different diameters.

[0023] Compared with the prior art, the utility model has the following beneficial effects: the end of the special-shaped bolt 6 is arranged in the centering groove 101, and the support body 1 can quickly find the center of the end of the special-shaped bolt 6, so that the first positioning column 3 and the second positioning column 4 are aligned with the opening 601; the torque wrench 5 is convenient for the staff to tighten the special-shaped bolt 6 with appropriate torque; the device is fixed to the special-shaped bolt 6 by a clamping column, and when disassembling and assembling the special-shaped bolt 6, the clamping column does not radially pass through the special-shaped bolt 6, and the clamping column will not squeeze the sensor cable 7 in the special-shaped bolt 6; the problem that during the installation of the special-shaped bolt 6 dedicated to the bearing shell, the screwdriver squeezes the sensor cable 7, which easily causes damage to the sensor cable 7.

[0024] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A special-shaped bolt fixing device, characterized in that: It includes a support body; the support body is U-shaped, and a clamping column is arranged at the end of the support body. A centering groove is opened on the end face of one axial side of the support body, and the clamping column is clamped at the opening of the special-shaped bolt. The clamping column includes a first positioning column and a second positioning column; the first positioning column is fixed on the inner wall of the head of the support body, and the second positioning column is detachably connected to the tail of the support body; the second positioning column can be telescopic on the tail of the support body, and the second positioning column cooperates with the first positioning column to be clamped in the openings on both sides of the radial direction of the special-shaped bolt, and also includes a screw; the second positioning column is fixed to the tail of the screw, and a threaded hole is opened on the tail of the support body, and the screw is threadedly connected to the threaded hole.

2. A special-shaped bolt fixing device according to claim 1, characterized in that: The centering groove is a semicircular groove.

3. A special-shaped bolt fixing device according to claim 1, characterized in that: The first positioning post and the second positioning post are both rectangular posts, and their cross sections are square.

4. A special-shaped bolt fixing device according to claim 2, characterized in that: A torque wrench is arranged on the outer side of the head of the support body, and the torque wrench is opposite to the first positioning column.

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