Gear with internal spline inverted conical teeth

Abstract

The utility model belongs to the technical field of gears, and particularly relates to a gear with internal spline inverted conical teeth, which comprises a gear body, and a first annular hole, a third annular hole and a fourth annular hole are sequentially formed in the middle of the gear body from right to left. The inner surface of the fourth annular hole is integrally provided with a plurality of internal spline inverted conical teeth in an annular arrangement mode. A plurality of outer teeth are integrally arranged on the outer surface of the gear body in an annular arrangement mode, and a tooth groove is formed in the space between the two sets of outer teeth. When the inner spline reverse taper teeth are connected with the reverse taper structure of the combination teeth through the gear sleeve, axial self-locking force can be provided, and the meshing gear sleeve is prevented from axially disengaging from the gear position under vibration or impact loads.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically to a gear with internal splined inverted bevel teeth. Background Technology

[0002] A gear is a mechanical part with toothed grooves that transmits motion and power through meshing with other gears. For example, gears are used in automobile transmissions for power transmission. One type of gear connection is the gear sleeve connection. Typically, the gear sleeve and gear are fixed together using methods such as interference fit or key connection. The gear sleeve is then connected to other shaft parts or components to achieve power transmission and fix the relative position between the gears.

[0003] However, in the transmission process of existing gears, the gear sleeve may axially disengage from the gear position due to vibration or impact loads. Therefore, a gear with internal splined inverted bevel teeth is invented. Utility Model Content

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A gear with internal splined inverted bevel teeth includes a gear body. The gear body has a first annular hole, a third annular hole and a fourth annular hole sequentially formed from right to left in the middle. The inner surface of the fourth annular hole is provided with a plurality of internal splined inverted bevel teeth arranged in a ring.

[0006] As a preferred embodiment of the gear with internal spline inverted bevel teeth described in this utility model, the outer surface of the gear body is provided with a plurality of external teeth arranged in a ring, and the space between two sets of external teeth is provided with tooth grooves.

[0007] As a preferred embodiment of the gear with internal spline inverted bevel teeth described in this utility model, an oil groove is provided on the inner surface of the first annular hole, and the oil groove is arranged in a spring-like manner.

[0008] As a preferred embodiment of the gear with internal splined inverted bevel teeth described in this utility model, wherein: the internal splined inverted bevel teeth include:

[0009] The base plate, wherein the inner surface of the fourth annular hole is integrally provided with several base plates arranged in a ring;

[0010] The top plate is integrally provided on the outer side of the bottom plate.

[0011] As a preferred embodiment of the gear with internal splined inverted bevel teeth described in this utility model, the internal splined inverted bevel teeth further include:

[0012] The first inclined surface is provided at both ends of the left side of the top plate, and the two sets of first inclined surfaces are arranged in a V-shape.

[0013] The second inclined surface is provided on the outer side of the bottom plate, located on the left side of the top plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Anti-disengagement: When the internal spline inverted bevel teeth are connected to the inverted bevel structure (inverted bevel angle 10°) of the engaging teeth through the tooth sleeve, it can provide axial self-locking force to prevent the meshing tooth sleeve from axially disengaging from the gear position under vibration or impact load;

[0016] 2. Shifting assistance: The internal spline inverted bevel teeth enable progressive meshing guidance, reducing shifting impact. Furthermore, the combined effect of the inverted bevel surface and the synchronizer cone ring makes it easier for the gear sleeve and gear to achieve circumferential speed synchronization.

[0017] 3. Anti-tooth breakage: Under conditions of incomplete synchronization, the radial force can be generated by the inclined surface contact of the internal spline inverted bevel teeth, forcing the tooth sleeve to retract to the neutral position, thus avoiding tooth breakage damage caused by hard collision of the tooth ends. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 2 This is a side view of the fourth annular hole and the inverted conical tooth of the internal spline of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal spline inverted conical tooth structure of this utility model;

[0021] Figure 4 This is a schematic diagram showing the machining process of the gear of this utility model;

[0022] Figure 5 This is a schematic diagram of the detection state of the gear of this utility model.

[0023] In the figure: gear body 10, external teeth 11, first annular hole 20, oil groove 21, third annular hole 30, fourth annular hole 40, internal spline bevel teeth 41, base plate 411, top plate 412, first inclined surface 413, second inclined surface 414, fixture 50, cutting tool 51, standard gauge block 60, spline washer 61, steel ball 62. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] This utility model provides a gear with internal splined inverted bevel teeth. Please refer to [link / reference]. Figures 1-5 The gear body 10 includes a first annular hole 20, a third annular hole 30 and a fourth annular hole 40 arranged sequentially from right to left in the middle of the gear body 10. The inner surface of the fourth annular hole 40 is provided with a plurality of internal spline inverted bevel teeth 41 arranged in annularly. The outer surface of the gear body 10 is provided with a plurality of external teeth 11 arranged in annularly, and the space between two sets of external teeth 11 is provided with a tooth groove. The inner surface of the first annular hole 20 is provided with an oil groove 21, and the oil groove 21 is arranged in a spring shape.

[0026] The internal spline inverted bevel gear 41 includes: a base plate 411, a top plate 412, a first inclined surface 413, and a second inclined surface 414;

[0027] The inner surface of the fourth annular hole 40 is provided with several base plates 411 arranged in a ring. The outer side of the base plate 411 is provided with a top plate 412. The left ends of the top plate 412 are provided with first inclined surfaces 413, and the two sets of first inclined surfaces 413 are arranged in a V-shape. The outer side of the base plate 411 located to the left of the top plate 412 is provided with a second inclined surface 414.

[0028] When machining the internal spline inverted bevel gear 41, the specific operating steps for those skilled in the art are as follows (e.g. Figure 4 As shown):

[0029] The gear is placed into the fixture 50 for positioning and clamping. Then the angle of the fixture 50 is adjusted (adjusted angle is 10°). After that, the cutter 51 is moved up and down to complete the machining of the internal spline bevel gear 41.

[0030] When measuring the span of the internal spline inverted bevel tooth 41, the specific operating steps for those skilled in the art are as follows (e.g., Figure 5 As shown):

[0031] Inspection tool preparation: 60 standard gauge blocks per set, 62 standard-sized steel balls, and calculated standard spline washers.

[0032] The following tools are required: ① A set of standard gauge blocks; ② A standard φ6 steel ball; ③ A calculated standard spline washer 61.

[0033] Location determination: The drawing requires the span of the test bar to be 4mm below the plane;

[0034] Confirmation: Before checking the span value, it is necessary to confirm that the 41° angle of the internal spline inverted bevel tooth meets the drawing requirement of 10° (using a profilometer for detection);

[0035] Measurement: First, place the calculated standard spline shim 61 into the third annular hole 30. Then, symmetrically place two standard steel balls 62 with a diameter of 6 in the fourth annular hole 40 (the steel balls 62 are located between the two sets of internal spline inverted bevel teeth 41). After that, place the standard gauge block 60 into the two steel balls 62 to obtain the actual span value.

[0036] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A gear with internal splined inverted bevel teeth, comprising a gear body (10), characterized in that, The gear body (10) has a first annular hole (20), a third annular hole (30) and a fourth annular hole (40) sequentially opened from right to left in the middle. The inner surface of the fourth annular hole (40) is provided with a plurality of internal spline inverted bevel teeth (41) arranged in annular pattern.

2. A gear with internal splined inverted bevel teeth according to claim 1, characterized in that, The outer surface of the gear body (10) is provided with a number of external teeth (11) arranged in a ring, and the space between the two sets of external teeth (11) is provided with tooth grooves.

3. A gear with internal splined inverted bevel teeth according to claim 1, characterized in that, The inner surface of the first annular hole (20) is provided with an oil groove (21), and the oil groove (21) is arranged in a spring shape.

4. A gear with internal splined inverted bevel teeth according to claim 1, characterized in that, The internal spline inverted bevel tooth (41) includes: The inner surface of the fourth annular hole (40) is provided with several base plates (411) arranged in an annular pattern; The top plate (412) is integrally provided on the outer side of the bottom plate (411).

5. A gear with internal splined inverted bevel teeth according to claim 4, characterized in that, The internal spline inverted bevel tooth (41) also includes: The first inclined surface (413) is provided at both ends of the left side of the top plate (412), and the two sets of first inclined surfaces (413) are arranged in a V-shape; The second inclined surface (414) is provided on the outer side of the bottom plate (411) located on the left side of the top plate (412).

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