Universal quenching tool for constant velocity universal joint

Abstract

The utility model relates to the technical field of universal joint quenching, in particular to a universal quenching tool for a constant velocity universal joint. Comprising a base, a rotating shaft arranged below the base and a center shaft arranged in the rotating shaft, the bottom end of a rod part of a universal joint is installed on the center shaft, an inner cavity of the universal joint is installed on the base, and the universal joint and the base form two-point positioning respectively; an opening in the upper portion of the base is in an inverted cone shape. An opening in the top end of the central shaft is also in an inverted cone shape; the groove at the bottom of the base is clamped with the boss at the top end of the rotating shaft; the bottom face of the base abuts against the upper end face of the protruding part of the rotating shaft. And a fastener is arranged on the outer side of the rotating shaft. The universal quenching tool for the constant velocity universal joint has the advantages of being wide in application range, high in working efficiency, good in quenching effect, low in use cost, simple in structure, convenient to use and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of universal joint quenching, in particular to a universal quenching tooling for constant velocity universal joints. Background Art

[0002] Universal joints are commonly used to connect shafts and drive components, such as the transmission system between an engine and a gearbox. They can withstand high-intensity torques and ensure smooth and efficient power transmission. By using universal joints, the transmission system can operate in different directions and angles, making the mechanical equipment more flexible.

[0003] Chinese Patent CN211947136U discloses an induction quenching tooling for a disc six-hole type constant velocity universal joint housing, including a quenching tooling bottom plate. A quenching liquid container is welded and connected to the upper surface of the quenching tooling bottom plate. A quenching liquid container bottom platform is welded and connected to the lower surface of the quenching liquid container. A container fixing pad is welded and connected to the upper surface of the quenching liquid container bottom platform. A container reinforcing plate is welded and connected to the side surface of the container fixing pad. A container protective housing is welded and connected to the outer surface of the container reinforcing plate. A heating pipe is welded and connected to the inner surface of the container protective housing. By designing the container protective housing, better wear resistance, heat resistance and corrosion resistance of the quenching liquid container are achieved. And by designing the quenching hydraulic rod, hydraulic rod and part adsorption electromagnet, the stability during the extrusion process is realized. And the part adsorption electromagnet is reinforced by designing the part adsorption electromagnet reinforcing rod.

[0004] However, in this technical solution, the universal joint cannot rotate, and has poor stability, uneven heating, poor quenching effect and poor product quality. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a universal quenching tooling for constant velocity universal joints for the deficiencies of the prior art. By installing the bottom end of the universal joint rod on the central shaft and installing the inner cavity of the universal joint on the base, the functions of quick two-point positioning and more stable and firm universal joint are realized, and the problem of poor stability of the universal joint in the prior art is solved.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A universal quenching tooling for constant velocity universal joints includes: a base for carrying the inner cavity of the universal joint, a rotating shaft arranged below the base, and a central shaft arranged inside the rotating shaft. The bottom end of the universal joint rod abuts against the central shaft, and the inner cavity of the universal joint abuts against the base, forming two-point positioning. The rod of the universal joint passes through the inner hole of the base and is limited by the inner hole.

[0008] Preferably, the upper opening of the base is in an inverted conical shape.

[0009] Preferably, the opening at the top end of the central axis is also in an inverted conical shape.

[0010] Preferably, the bottom end of the universal joint rod portion abuts against the inverted conical surface of the central axis.

[0011] Preferably, the inner cavity of the universal joint abuts against the inverted conical surface of the base.

[0012] Preferably, the groove at the bottom of the base engages with the boss at the top end of the rotating shaft.

[0013] Preferably, the bottom surface of the base abuts against the upper end surface of the protruding portion of the rotating shaft.

[0014] Preferably, a fastener is provided on the outer side of the rotating shaft.

[0015] Preferably, the fastener passes through the rotating shaft and abuts against the central axis.

[0016] The beneficial effects of the present utility model are as follows:

[0017] (1) By replacing the base with different opening sizes to correspond to universal joints with different inner cavity sizes, that is, multiple types of bases can be installed on the rotating shaft, the present utility model realizes multiple uses of one shaft, has a wide application range, and low usage cost.

[0018] (2) By engaging the groove at the bottom of the base with the boss at the top end of the rotating shaft, the engaging connection has a simple structure, is convenient for disassembly and assembly, has a good fixing effect, is more stable and firm, will not have phenomena such as automatic detachment, can reduce the assembly parts, further reduces the usage cost, and the rotation of the rotating shaft ensures uniform heating of the universal joint, high working efficiency, and good quenching effect.

[0019] (3) By providing a fastener on the outer side of the rotating shaft, and the fastener passes through the rotating shaft and abuts against the central axis, the central axis will not shift, further ensuring the stability and firmness of the universal joint, preventing it from shaking or tilting, etc., thus ensuring the quality of quenching, and can be adjusted accordingly according to the length of the universal joint rod portion, with a wide application range.

[0020] In summary, the present utility model has the advantages of wide application range, high working efficiency, good quenching effect, low usage cost, simple structure, and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a cross-sectional view of the overall structure of the present utility model;

[0022] Figure 2 is a cross-sectional view of the base of the present utility model;

[0023] Figure 3 Cross-sectional view of the rotating shaft of the present utility model;

[0024] Figure 4 Cross-sectional view of the central shaft of the present utility model.

[0025] Reference numerals: 1 - base; 2 - rotating shaft; 21 - boss; 22 - protruding part; 23 - fastener; 3 - central shaft. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0028] Embodiment

[0029] As Figures 1-4 shown, this embodiment provides a constant velocity universal joint general quenching tooling, including: a base 1 for carrying the inner cavity of the universal joint, a rotating shaft 2 disposed below the base 1, and a central shaft 3 disposed inside the rotating shaft 2. The bottom end of the rod portion of the universal joint abuts against the central shaft 3, and the inner cavity of the universal joint abuts against the base 1, and the two respectively form two-point positioning. The rod portion of the universal joint passes through the inner hole of the base 1 and is limited by the inner hole, making the universal joint more stable and firm, not prone to shaking or offsetting during rotation, and the two-point positioning operation is simpler and more convenient to use.

[0030] Wherein, the upper opening of the base 1 is in an inverted conical shape, that is, the cross-section at the upper opening of the base 1 is in an inverted V shape, and the inner cavity opening of the universal joint faces upward for quenching the inner cavity. Moreover, the base 1 can be replaced correspondingly according to the different sizes of the inner cavity of the actual universal joint, that is, the rotating shaft 2 can be applicable to bases 1 with different opening sizes, and the application range is wide.

[0031] Meanwhile, the opening at the top end of the central shaft 3 is also in an inverted conical shape, and the taper of the opening of the central shaft 3 is smaller than the taper of the opening of the base 1 to correspond to the different sizes of the inner cavity and the rod part of the universal joint, thereby ensuring that the universal joint can be successfully positioned at two points.

[0032] In this embodiment, the bottom end of the rod part of the universal joint abuts against the inverted conical surface of the central shaft 3, and the inner cavity of the universal joint abuts against the inverted conical surface of the base 1. The two are combined to form two-point positioning, ensuring the smooth installation of the universal joint, achieving rapid positioning, and being convenient to use.

[0033] In this embodiment, the groove at the bottom of the base 1 is engaged with the boss 21 at the top end of the rotating shaft 2. The engaging connection structure is simple, convenient for disassembly and assembly, has a good fixing effect, will not automatically fall off, etc., can reduce the assembly parts, and reduces the use cost.

[0034] In this embodiment, the bottom surface of the base 1 abuts against the upper end surface of the protruding part 22 of the rotating shaft 2, making the force on the universal joint on the base 1 more uniform and stable, thereby ensuring that the universal joint is more stable when rotating.

[0035] Of course, a fastener 23 is arranged on the outer side of the rotating shaft 2. The fastener 23 passes through the rotating shaft 2 and abuts against the central shaft 3. The fastener 23 directly acts on the central shaft 3, further ensuring the stability of the universal joint, preventing it from shaking or tilting, etc., thereby ensuring the quality of quenching. It can also adjust the up and down position of the central shaft 3 according to the length of the rod part of the universal joint, and the application range is wide. The fastener 23 is preferably a bolt, which is simple to operate, convenient for disassembly and assembly, and has a good fixing effect, and can timely adjust the tightness state of the universal joint.

[0036] In addition, the inside of the rotating shaft 2 is hollow, and the diameter of the internal space of the rotating shaft 2 should be larger than the diameter of the rod part of the universal joint. It is necessary to ensure that the universal joint can be successfully installed into the rotating shaft 2. The diameter of the internal space of the rotating shaft 2 should be adapted to the outer diameter of the central shaft 3, ensuring that the central shaft 3 will not fall off from the rotating shaft 2, and ensuring that the bottom end of the rod part of the universal joint can abut against the conical surface of the central shaft 3. Moreover, the inside of the central shaft 3 is hollow, avoiding problems such as the instability of the universal joint caused by the change of the internal space pressure due to the complete sealing of the inside of the rotating shaft 2.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A universal quenching tool for constant velocity joints, characterized in that: include: A base for supporting the inner cavity of the universal joint, a rotating shaft arranged below the base and a central shaft arranged inside the rotating shaft, the bottom end of the universal joint rod abuts against the central shaft, the inner cavity of the universal joint abuts against the base, the two form two-point positioning, the universal joint rod passes through the inner hole of the base and is limited by the inner hole.

2. The universal quenching tool for constant velocity joints according to claim 1, characterized in that: The upper opening of the base is in an inverted cone shape.

3. The universal quenching tool for constant velocity joints according to claim 1, characterized in that: The opening at the top end of the central axis is in an inverted cone shape.

4. The universal quenching tool for constant velocity joints according to claim 1, characterized in that: The bottom end of the universal joint rod abuts against the inverted conical surface of the central axis.

5. The universal quenching tool for constant velocity joints according to claim 1, characterized in that: The inner cavity of the universal joint abuts against the inverted conical surface of the base.

6. The universal quenching tool for constant velocity joints according to claim 1, characterized in that: The groove at the bottom of the base is engaged with the boss at the top of the rotating shaft.

7. The universal quenching tool for constant velocity joints according to claim 1, characterized in that: The bottom surface of the base abuts against the upper end surface of the protruding portion of the rotating shaft.

8. The universal quenching tool for constant velocity joints according to claim 1, characterized in that: A fastener is arranged on the outer side of the rotating shaft.

9. The universal quenching tool for constant velocity joints according to claim 8, characterized in that: The fastener passes through the rotating shaft and abuts against the central shaft.

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