Fractured cylinder cover stud taking-out tool
By designing a tool to remove the broken cylinder head stud and using a combination of a guide sleeve and a set screw, the problems of difficulty in removing the broken stud and damage to the threaded hole are solved, and the removal efficiency and safety are improved.
Patent Information
- Application Number
- CN202421089214.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The engine cylinder head studs may break during operation, resulting in difficulty in removing and easily damage the threaded holes in the body, affecting reinstallation.
Design a fracture cylinder head thread to remove the workflow, including the base, guide cover, tight screws and wear -resistant bands. The bottom is supported on the body through the base, drilled on the fracture thread by using the guidance cover, and fixed the guidance cover by fixed screws to avoid damaging the threaded hole.
Improved the efficiency of the broken thread, reduced the labor intensity, and avoided the screw holes on the body, ensuring the reinstallation of the thread.
Smart Images
Figure CN222386888U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engine manufacturing, in particular to a tool for removing a broken cylinder head stud. Background Art
[0002] The cylinder head stud is one of the most important parts in the engine. The reliability of its connection is directly related to the power, economy, reliability and safety of the engine. During the operation of the engine, the cylinder head stud is subjected to the alternating effects of the explosion pressure in the cylinder and the heat load. The working environment is harsh and may cause fracture and failure. The removal of the broken stud is very cumbersome, which seriously affects the work efficiency. In addition, the threaded holes on the engine body are easily damaged during the removal of the broken stud, which affects the reinstallation of the stud. Utility Model Content
[0003] In order to solve the problem of difficulty in removing the broken cylinder head studs of the above-mentioned engine, the utility model provides a tool for removing the broken cylinder head studs.
[0004] The utility model is realized through the following technical solutions:
[0005] A tool for removing broken cylinder head studs, the tool comprising a base, a guide sleeve, a set screw and a wear-resistant bushing; the base is composed of a support plate and a support foot; the base is supported on the cylinder head mounting surface of a machine body by the support foot; the support plate has a plurality of through-type circular holes; the plurality of through-type circular holes are in the same position as the intact studs on the machine body; the support plate has a stepped hole corresponding to the position of the broken cylinder head stud; a guide sleeve for drilling threaded holes on the broken cylinder head stud is installed in the stepped hole; the guide sleeve is T-shaped; a shoulder is milled on the flange of the T-shaped guide sleeve; a set screw is also fixed on the support plate; the head of the set screw is pressed against the shoulder of the guide sleeve to form a structure to prevent the guide sleeve from rotating.
[0006] A wear-resistant bushing is arranged between the stepped hole of the base and the guide sleeve; the wear-resistant bushing is interference fit with the base, and the guide sleeve is inserted into the bushing, so as to avoid damage to the base when replacing the guide sleeve and save costs.
[0007] The utility model discloses a broken cylinder head stud removal tool, which adopts the above technical scheme, improves the work efficiency of removing the broken stud on site, reduces the labor intensity, and will not damage the threaded hole on the machine body while removing the broken stud, and will not affect the reinstallation of the stud; the utility model has the characteristics of simple structure, low cost, easy and quick operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural schematic diagram of the utility model.
[0009] Figure 2It is a full cross-sectional view of the utility model.
[0010] Among them: 1. Guide sleeve, 2. Set screw, 3. Base, 4. Wear-resistant bushing. DETAILED DESCRIPTION
[0011] The utility model is described in detail with reference to the accompanying drawings and specific embodiments:
[0012] like Figure 1 , Figure 2 As shown, a tool for removing broken cylinder head studs, the removal tool comprises a base 3, a guide sleeve 1, a set screw 2, and a wear-resistant bushing 4; the base 3 is composed of a support plate and a support foot; the base 3 is supported on the cylinder head mounting surface of the body by the support foot; the support plate has a plurality of through-type circular holes; the plurality of through-type circular holes are consistent with the positions of intact studs on the body, and are used to achieve the purpose of fixing with the help of the intact studs on the body; the support plate has stepped holes corresponding to the positions of the broken cylinder head studs; a guide sleeve for drilling threaded holes on the broken cylinder head studs is installed in the stepped holes; the purpose of removing the broken cylinder head studs without damaging the threaded holes on the body is achieved; the guide sleeve 1 is T-shaped; a shoulder is milled on the flange of the T-shaped guide sleeve 1; a set screw 2 is also fixed on the support plate; the head of the set screw 2 is pressed against the shoulder of the guide sleeve 1, forming a structure to prevent the guide sleeve 1 from rotating.
[0013] The set screw 2 is a screw with a stepped head, and the stepped head cooperates with the shoulder of the guide sleeve to fix the guide sleeve 1.
[0014] The bushing 4 is a part installed in the base 3 and forms an interference fit with the base 3. It is made of wear-resistant and high-hardness material. The guide sleeve 1 is installed in the bushing 4 to avoid damage to the base 3 when replacing the guide sleeve 1, thereby saving costs.
[0015] When in use, the tool is installed on the joint surface of the engine body and the cylinder head, fixed with nuts using the intact studs on the engine body, the hole for installing the guide sleeve is kept consistent with the position of the broken cylinder head stud, a hand drill is used to drill a hole through the guide sleeve, and then a threaded auxiliary tool is screwed into the threaded hole to remove the broken stud.
[0016] Although the above describes the specific implementation methods of the utility model in combination with the drawings, it does not limit the protection scope of the utility model. Any equivalent structure or equivalent process transformation made using the utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the utility model.
Claims
1. A tool for removing a broken cylinder head stud, characterized in that: The removal tooling comprises a base, a guide sleeve, a set screw and a wear-resistant bushing; the base is composed of a support plate and a support foot; the base is supported on the cylinder head mounting surface of the engine body by the support foot; the support plate has a plurality of through-type circular holes; the plurality of through-type circular holes are consistent with the positions of intact studs on the engine body; the support plate has a stepped hole corresponding to the position of the broken cylinder head stud; a guide sleeve for drilling threaded holes on the broken cylinder head stud is installed in the stepped hole; the guide sleeve is T-shaped; a shoulder is milled on the flange of the T-shaped guide sleeve; a set screw is also fixed on the support plate; the head of the set screw is pressed against the shoulder of the guide sleeve to form a structure to prevent the guide sleeve from rotating.
2. A broken cylinder head stud removal tool as claimed in claim 1, characterized in that: A wear-resistant bushing is arranged between the stepped hole of the base and the guide sleeve; the wear-resistant bushing is interference fit with the base.