Steel cable baffle ring press fitting tool and method for axial locating
The technology of a steel wire retaining ring and a press-fitting tool is applied in the field of parts assembly, which can solve the problems of low press-fitting qualification rate and efficiency, press-fitting failure, scratches on the inner wall of the gear, etc., and achieves high press-fitting efficiency, simple structure, and qualified high rate effect
Active Publication Date: 2015-04-08
HENAN DIESEL ENGINE IND
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- Description
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- Application Information
AI Technical Summary
Problems solved by technology
When press-fitting with this method, the retaining ring in the retaining ring groove of the bushing often comes out of the retaining ring groove, resulting in press-fit failure, and when the interference is large, it is easy to scratch the inner wall of the gear
The pass rate and efficiency of the above two methods are very low.
Method used
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Embodiment Construction
[0018] Embodiment given in conjunction with accompanying drawing, the present invention is described:
[0019] Such as figure 1 As shown, a steel wire retaining ring pressing tool for axial positioning includes a support body I4, a support body II5 and a screw 6; the support body I4 and the support body II5 are cut from a sleeve, and the sleeve has For a stepped shaft with a cylindrical cavity, the outer diameter of the small end of the stepped shaft is smaller than the inner diameter of the free state of the steel wire retaining ring, and the length of the step at the small end of the stepped shaft is slightly greater than the distance from the retaining ring groove on the inner wall of the gear to the end face of the gear, and the diameter of the stepped shaft The diameter of the inner circle is smaller than that of the bushing 1, and the diameter of the outer circle at the big end of the stepped shaft is more than 10mm larger than the inner diameter of the gear; The thread...
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The invention belongs to the technical field of part assembly, and relates to a steel cable baffle ring press fitting tool and method for axial locating. The press fitting tool comprises a first supporting body (4), a second supporting body (5) and a threaded rod (6). The first supporting body (4) and the second supporting body (5) are formed by cutting sleeve barrels, and the first supporting body (4) is of a structure which is upwards ejected through rotation of the threaded rod (6) and gradually expands relative to the second supporting body (5). According to the steel cable baffle ring press fitting tool and method for axial locating, steel cable baffle rings between fitting surfaces of bushings with the large interference magnitude and gears can be in a press fitting mode. The press fitting tool is simple in structure and high in press fitting efficiency and yield. The steel cable baffle ring press fitting tool and method for axial locating are suitable for press fitting of the steel cable baffle rings in the gear bushings, and can be popularized and applied to occasions where the sleeve barrels and shaft parts are mutually matched to transmit power and axial locating is needed.
Description
technical field [0001] The invention belongs to the technical field of component assembly, and mainly relates to a press-fitting tool and a press-fitting method for a steel wire retaining ring for axial positioning, which can be popularized and applied to occasions where sleeves and shaft parts cooperate with each other and axial positioning is required when transmitting power . Background technique [0002] When the working surface of the shaft and the seat are in direct contact, the high-speed operation of the shaft will cause wear between the shaft and the seat. In order to save the cost of replacing the shaft or seat, the bushing is usually pressed into the seat with an interference fit, so that the shaft and the bushing are directly connected. contact, replace the bushing after wear and tear. Although there is an interference fit between the shaft and the bush, there is often axial movement between the two, and a retaining ring is required for axial positioning. When ...
Claims
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IPC IPC(8): B25B27/02B23P11/00
CPCB23P11/025B25B27/02
Inventor 张德军牛军锋闫朝友李文彬
Owner HENAN DIESEL ENGINE IND