CN208457004U - Mandrel - Google Patents

Abstract

The utility model belongs to auto parts technical field, more particularly, to a kind of mandrel.Including axis body, it is in several denticles that one end end of axis body is separated by several along the circumferential direction upper equally distributed tooth sockets, first is equipped on the outside portion of each denticle outer end to collapse angle, gradually inclined inclined surface outward is equipped with from outside to inside between tooth socket inner end and two adjacent denticle inner ends, the axis body other end is equipped with the small shaft part that diameter is less than axis body, annular slope transitions are equipped between small shaft part and axis body, annular protrusion is equipped between annular slope transitions and denticle, the side that annular protrusion is located at denticle is equipped with cross section in pentagonal step, annular protrusion, step and axis body are connected as a single entity structure, several arc micro-boss circumferentially distributed along step outer part are additionally provided on step outer part, arc micro-boss and annular protrusion, step is connected as a single entity structure.Advantage is compared with prior art: 1, design rationally, assembles reliable mandrel.

Description

Mandrel

Technical field

The utility model belongs to auto parts technical field, more particularly, to a kind of mandrel.

Background technique

Mandrel is one of common components on automobile.But that there is assembly reliabilities is poor for existing mandrel, is easy to The technical problems such as displacement.

Summary of the invention

The purpose of this utility model be in view of the above-mentioned problems, provide it is a kind of design rationally, assemble reliable mandrel.

In order to achieve the above objectives, the utility model uses following technical proposal: this mandrel, which is characterized in that including axis Body, it is in several denticles that one end end of the axis body is separated by several along the circumferential direction upper equally distributed tooth sockets, each It is equipped with first on the outside portion of denticle outer end to collapse angle, is equipped between the tooth socket inner end and two adjacent denticle inner ends by outer Gradually inclined inclined surface, the axis body other end are equipped with the small shaft part that diameter is less than axis body outward in, and described is small It is equipped with annular slope transitions between shaft part and axis body, annular protrusion is equipped between annular slope transitions and denticle, it is described Annular protrusion be located at the side of denticle and be equipped with cross section in pentagonal step, the annular protrusion, step and axis body connect It is an integral structure, several arc micro-boss circumferentially distributed along step outer part, institute is additionally provided on the step outer part The arc micro-boss stated is connected as a single entity structure with annular protrusion, step.

In above-mentioned mandrel, the length of the axis body, the length of small shaft part, the axial direction of annular slope transitions are long Axial length, the axial length on the inside of denticle, axis on the outside of degree, the axial width of annular protrusion, the axial height of step, denticle The ratio between body diameter, small shaft part outer diameter, annular protrusion outer diameter, step maximum radius are 56.5:4.13:8.37:1.5:7.5:23: 20.23:22.8:18:32.33:16.5.

In above-mentioned mandrel, the step outer is equipped with second and collapses angle.

In above-mentioned mandrel, the axis body is equipped with oil filler point far from one end of denticle, at least one inclined surface Equipped with the oil outlet being connected to oil filler point.

In above-mentioned mandrel, check valve is equipped in the oil filler point.

Compared with prior art, be the advantages of this mandrel: 1, design rationally, assembles reliable mandrel.2, leakproofness It is good, effectively ensure the stability of equipment work.3, oiling can be convenient for, ensure lubricity.

Detailed description of the invention

Fig. 1 is structural schematic diagram provided by the utility model.

Fig. 2 is broken section structural schematic diagram provided by the utility model.

Fig. 3 is oil filler hole structure schematic diagram provided by the utility model.

In figure, axis body 1, tooth socket 2, denticle 3, first are collapsed angle 3a, inclined surface 4, small shaft part 5, annular slope transitions 6, ring Shape protrusion 7, step 8, arc micro-boss 81, second are collapsed angle 82, oil filler point 9, oil outlet 91, check valve 92.

Specific embodiment

As shown in Figure 1, 2, this mandrel, including axis body 1, one end end of axis body 1 pass through several along the circumferential direction upper uniform It is in several denticles 3 that the tooth socket 2 of distribution, which separates, and first is equipped on each 3 outer end outside portion of denticle and is collapsed angle 3a, 2 inner end of tooth socket and Equipped with gradually inclined inclined surface 4,1 other end of axis body are equipped with straight outward from outside to inside between two adjacent 3 inner ends of denticle Diameter is less than the small shaft part 5 of axis body 1, annular slope transitions 6 is equipped between small shaft part 5 and axis body 1, in annular slope transitions 6 Annular protrusion 7 is equipped between denticle 3, the side that annular protrusion 7 is located at denticle 3 is equipped with cross section in pentagonal step 8, ring Shape protrusion 7, step 8 and axis body 1 are connected as a single entity structure, and are additionally provided on 8 outer part of step several along step 8 outer part circumferential direction point The arc micro-boss 81 of cloth, arc micro-boss 81 are connected as a single entity structure with annular protrusion 7, step 8.

More specifically, the length of axis body 1, the length of small shaft part 5, the axial length of annular slope transitions 6, convex annular Play 7 axial width, the axial height of step 8, the axial length in 3 outside of denticle, the axial length of 3 inside of denticle, axis body 1 directly The ratio between diameter, 5 outer diameter of small shaft part, 7 outer diameter of annular protrusion, 8 maximum radius of step are 56.5:4.13:8.37:1.5:7.5:23: 20.23:22.8:18:32.33:16.5；8 outer of step is equipped with second and collapses angle 82；

As shown in figure 3, axis body 1 is equipped with oil filler point 9 far from one end of denticle 3 for the ease of lubrication, at least one inclination Face 4 is equipped with the oil outlet 91 being connected to oil filler point 9；Check valve 92 is equipped in oil filler point 9.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Although be used more herein axis body 1, tooth socket 2, denticle 3, first collapse angle 3a, inclined surface 4, small shaft part 5, annular Slope transitions 6, annular protrusion 7, step 8, arc micro-boss 81, second are collapsed angle 82, oil filler point 9, oil outlet 91, check valve 92 Equal terms, but it does not exclude the possibility of using other terms.The use of these items is only for more easily describe to conciliate The essence for releasing the utility model, being construed as any additional limitation is disagreed with the spirit of the present invention 's.

Claims (5)

1. a kind of mandrel, which is characterized in that including axis body (1), one end end of the axis body (1) passes through several circumferentially sides It is in several denticles (3) that equally distributed tooth socket (2), which separates, upwards, and first is equipped on each denticle (3) outer end outside portion and is collapsed angle (3a) is equipped with gradually inclined outward from outside to inside between the tooth socket (2) inner end and two adjacent denticle (3) inner ends Inclined surface (4), the axis body (1) other end be equipped with diameter be less than axis body (1) small shaft part (5), the small shaft part (5) and It is equipped with annular slope transitions (6) between axis body (1), annular protrusion is equipped between annular slope transitions (6) and denticle (3) (7), the side that the annular protrusion (7) is located at denticle (3) is equipped with cross section in pentagonal step (8), the annular Raised (7), step (8) and axis body (1) are connected as a single entity structure, and are additionally provided on the step (8) outer part several along step (8) the circumferentially distributed arc micro-boss (81) of outer part, the arc micro-boss (81) and annular protrusion (7), step (8) are even It is an integral structure.

2. mandrel according to claim 1, which is characterized in that the length of the axis body (1), the length of small shaft part (5), The axial lengths of annular slope transitions (6), the axial width of annular protrusion (7), the axial height of step (8), denticle (3) are outside Axial length, axis body (1) diameter, small shaft part (5) outer diameter, annular protrusion (7) outer diameter on the inside of the axial length of side, denticle (3), The ratio between step (8) maximum radius is 56.5:4.13:8.37:1.5:7.5:23:20.23:22.8:18:32.33:16.5.

3. mandrel according to claim 1, which is characterized in that step (8) outer is equipped with second and collapses angle (82).

4. mandrel according to claim 1, which is characterized in that the axis body (1) is equipped with far from the one end of denticle (3) Oil filler point (9), at least one inclined surface (4) are equipped with the oil outlet (91) being connected to oil filler point (9).

5. mandrel according to claim 4, which is characterized in that be equipped with check valve (92) in the oil filler point (9).