Clamping tool for gear grinding of slender sun gear

Abstract

The utility model provides a slender sun wheel gear grinding clamping tool which is characterized in that the upper end face of a bottom plate is welded with the lower end face of a fixed sleeve, and the upper end face of the sleeve is welded with the lower end face of a fixed positioning sleeve; the positioning sleeve is a second-order cylinder, the tooth portion of the sun gear faces downwards, and the outer circle of the small-diameter section of the positioning sleeve is inserted into an inner spigot of the sun gear and connected with the inner spigot in an interference fit mode. The bolt penetrates through a through groove formed in the large-diameter section of the positioning sleeve and then is screwed into a screw hole in the lower end face of the sun gear. The gear grinding clamping tool for the long and thin sun gear can grind the gear within the effective working range of gear grinding equipment.

Description

Technical Field

[0001] The utility model relates to the field of tooling, in particular to a slender sun gear grinding clamping tooling. Background Art

[0002] Wind power generation has developed rapidly in recent years due to its advantages such as zero pollution and low construction cost.

[0003] In wind turbine gearboxes, the secondary transmission sun gear is mostly slender. When it is vertically ground, the teeth are at one end of the sun gear. The conventional grinding clamping is difficult and it is easy to exceed the effective working area of ​​the gear grinder. Utility Model Content

[0004] The utility model provides a slender sun gear grinding clamping tool, which aims to solve the shortcomings of the prior art and provide a slender sun gear grinding clamping tool so that the slender sun gear grinding clamping tool can grind gears within the effective working range of the gear grinding equipment.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The slim sun gear grinding fixture is characterized by:

[0007] The upper end surface of the bottom plate is welded to the lower end surface of the fixed sleeve, and the upper end surface of the sleeve is welded to the lower end surface of the fixed positioning sleeve;

[0008] The positioning sleeve is a second-order cylinder, the teeth of the sun gear face downward, and the outer circle of the small diameter section of the positioning sleeve is inserted into the inner stop of the sun gear and connected by interference fit;

[0009] The bolt passes through the through slot provided in the large diameter section of the positioning sleeve and is screwed into the screw hole on the lower end surface of the sun gear.

[0010] Further:

[0011] The through groove formed in the large diameter section of the positioning sleeve is a waist-shaped groove, and the waist-shaped groove opens on the outer circle of the large diameter section.

[0012] Further:

[0013] It has 4 waist-shaped grooves evenly distributed around the circumference.

[0014] Further:

[0015] The two side edges of the rib plate are respectively welded and fixed on the side surface of the sleeve and the upper end surface of the bottom plate.

[0016] Further:

[0017] It has 4 ribs evenly distributed around the circumference.

[0018] The utility model is beneficial in that:

[0019] The utility model uses a sleeve and a positioning sleeve to raise the tooth portion of the slender sun gear to the effective working area of ​​the gear grinding machine and firmly clamp it, so that the gear grinding process of the slender sun gear can be smoothly carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a top view of the positioning sleeve of the utility model;

[0023] Figure 3 This is a cross-sectional view of the positioning sleeve of the utility model. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work. In order to facilitate the understanding of the utility model, the following will be combined with the drawings and specific embodiments to explain the utility model in more detail.

[0025] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more centered elements can exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more centered elements can exist between them. The terms "upper", "lower", "inner", "outer", "bottom", etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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 therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1 , Figure 2 , Figure 3 As shown:

[0027] The positioning sleeve 2 is a second-order cylinder, and the outer diameter of the small diameter section 22 at the upper end thereof is processed according to the size of the inner stop 12 at the lower end of the sun gear 1 and the interference fit is 1-3.

[0028] The large diameter section 21 at the lower end of the positioning sleeve 2 has four waist-shaped grooves 23 evenly distributed on its circumference, and the waist-shaped grooves 23 open on the outer circumference of the large diameter section 21 .

[0029] The lower end surface of the positioning sleeve 2 is welded to the upper end surface of the sleeve 4, and the lower end surface of the sleeve 4 is welded to the upper end surface of the bottom plate 6. There are four ribs 5 evenly distributed around the circumference, and the two sides of the ribs 5 are respectively welded to the side surface of the sleeve 4 and the upper end surface of the bottom plate 6, so that the positioning sleeve 2, the sleeve 4, and the bottom plate 6 are connected into a whole.

[0030] The toothed portion 11 of the sun gear 1 faces downward, the small diameter section 22 of the positioning sleeve 2 is inserted into the inner stop 12 of the sun gear 1, and the inner stop 12 is connected with the outer circle of the small diameter section 22 of the positioning sleeve 2 by interference fit, and is automatically aligned.

[0031] In addition, the screw hole 13 on the lower end surface of the sun gear 1 is aligned with the waist groove 23 of the large diameter section 21 of the positioning sleeve 2, and the bolt 3 passes through the waist groove 23 and is screwed into the screw hole 23 and tightened, so that the sun gear 1 is fastened to the positioning sleeve 2.

[0032] After the clamping and tightening is completed and the reference journal of the sun gear 1 is qualified, the gear grinding process can be arranged.

[0033] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. Slender sun gear grinding fixture, characterized by: The upper end surface of the base plate is welded to the lower end surface of the fixed sleeve, and the upper end surface of the sleeve is welded to the lower end surface of the fixed positioning sleeve; the positioning sleeve is a second-order cylinder, the tooth portion of the sun gear faces downward, and the outer circle of the small diameter section of the positioning sleeve is inserted into the inner stop of the sun gear and connected with an interference fit; the bolt passes through the through groove opened in the large diameter section of the positioning sleeve and is screwed into the screw hole on the lower end surface of the sun gear.

2. The slender sun gear grinding fixture as claimed in claim 1, characterized in that: The through groove formed in the large diameter section of the positioning sleeve is a waist-shaped groove, and the waist-shaped groove opens at the outer circle of the large diameter section.

3. The slender sun gear grinding fixture as claimed in claim 2, characterized in that: It has 4 waist-shaped grooves evenly distributed around the circumference.

4. The slender sun gear grinding fixture as claimed in claim 1, characterized in that: The two side edges of the rib plate are respectively welded and fixed on the side surface of the sleeve and the upper end surface of the bottom plate.

5. The slender sun gear grinding fixture as claimed in claim 4, characterized in that: It has 4 ribs evenly distributed around the circumference.

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