阅读说明：本技术 一种提高齿轮滑动啮合效率的齿形结构 (Improve profile of tooth structure of gear slip meshing efficiency ) 是由 赵铁栓 赵小宇 殷楠 赵甜甜 于 2021-11-04 设计创作，主要内容包括：本发明公开了一种提高齿轮滑动啮合效率的齿形结构,包括轴柱,所述轴柱上分别套设有档位齿轮和滑毂,所述滑毂的外壁套设有滑套组件,所述滑套组件由滑套主体和内齿滑套组成,所述内齿滑套的外壁对称固定有两个卡块,所述滑套主体的内壁对称开设有矩形槽,所述卡块位于矩形槽的内部；本发明通过设计的滑套主体和内齿滑套,将传统的一体式滑套拆分为两个部分,在需要更换内部的内花键时,只需要将装有内花键的内齿滑套进行拆卸更换即可,极大程度降低更换成本,通过设计的卡块,卡块滑入到矩形槽内实现对滑套主体和内齿滑套快速拼接。(The invention discloses a tooth-shaped structure for improving the sliding engagement efficiency of a gear, which comprises an axle post, wherein a gear and a sliding hub are respectively sleeved on the axle post, a sliding sleeve assembly is sleeved on the outer wall of the sliding hub and consists of a sliding sleeve main body and an internal tooth sliding sleeve, two clamping blocks are symmetrically fixed on the outer wall of the internal tooth sliding sleeve, a rectangular groove is symmetrically formed in the inner wall of the sliding sleeve main body, and the clamping blocks are positioned in the rectangular groove; according to the invention, the traditional integrated sliding sleeve is split into two parts through the designed sliding sleeve main body and the inner tooth sliding sleeve, when the inner spline is required to be replaced, only the inner tooth sliding sleeve provided with the inner spline needs to be detached and replaced, so that the replacement cost is greatly reduced, and the sliding sleeve main body and the inner tooth sliding sleeve are rapidly spliced through the designed fixture block which slides into the rectangular groove.)

1. The utility model provides an improve profile of tooth structure of gear sliding engagement efficiency, includes jack-post (1), the cover is equipped with gear (3) and smooth hub (8) respectively on jack-post (1), the outer wall cover of smooth hub (8) is equipped with sliding sleeve subassembly, its characterized in that: the sliding sleeve subassembly comprises sliding sleeve main part (4) and internal tooth sliding sleeve (7), the outer wall symmetry of internal tooth sliding sleeve (7) is fixed with two fixture blocks (6), rectangular channel (11) have been seted up to the inner wall symmetry of sliding sleeve main part (4), fixture block (6) are located the inside of rectangular channel (11), circular recess (14) have been seted up on the surface of fixture block (6), equipment hole (12) have been seted up to the terminal surface of rectangular channel (11), the inside of circular recess (14) is provided with equipment piece (5), the one end of equipment piece (5) extends to inside equipment hole (12).

2. The tooth profile structure for improving the sliding engagement efficiency of gears according to claim 1, wherein: the other end of the assembling block (5) is provided with four springs (15), and the four springs (15) are in a circular array relative to the central axis of the assembling block (5).

3. The tooth profile structure for improving the sliding engagement efficiency of gears according to claim 1, wherein: spring (15) inboard is provided with limit slide bar (10), the one end outer wall cover of limit slide bar (10) is equipped with stop sleeve (9), limit slide bar (10) are fixed at circular recess (14) terminal surface, stop sleeve (9) are fixed at equipment piece (5) terminal surface.

4. The tooth profile structure for improving the sliding engagement efficiency of gears according to claim 1, wherein: the end face of the assembling hole (12) is provided with a stepped hole, and the inner side of the stepped hole is provided with a sealing plug (13).

5. The tooth profile structure for improving the sliding engagement efficiency of gears according to claim 1, wherein: the inner wall of internal tooth sliding sleeve (7) is provided with internal spline (16), the one end outer wall of gear (3) is provided with external spline (18), the both ends surface of internal spline (16) and external spline (18) all is provided with closed angle inclined plane (17) that are the triangle-shaped form.

6. The tooth profile structure for improving the sliding engagement efficiency of gears according to claim 5, wherein: one side of gear (3) is provided with retaining ring (2), retaining ring (2) suit is on the outer wall of jack-post (1).

Technical Field

The invention belongs to the technical field of gear transmission, and particularly relates to a tooth-shaped structure for improving the sliding engagement efficiency of a gear.

Background

In the gear drive application at present, shift at the gear box and control the in-process, the sliding sleeve passes through the spline and slides hub meshing to can make a round trip to slide, the outer terminal surface of gear is equipped with same external splines, realizes meshing with gear external splines when the sliding sleeve slides.

Present sliding sleeve and inside internal spline are a whole, when needing to the meshing gear of shifting of different specifications to suit mutually, need dismantle whole sliding sleeve, change the sliding sleeve of suitable number of teeth and use, and in the gear box operation of shifting simultaneously, internal spline wearing and tearing are very big, need carry out the periodic maintenance to it, need change whole sliding sleeve when its tooth wearing and tearing are excessive, lead to the big problem of its replacement cost.

Disclosure of Invention

The present invention is directed to a tooth structure for improving the sliding engagement efficiency of gears, so as to solve the problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an improve profile of tooth structure of gear sliding engagement efficiency, includes the jack-post, the cover is equipped with gear and smooth hub on the jack-post respectively, the outer wall cover of smooth hub is equipped with the sliding sleeve subassembly, the sliding sleeve subassembly comprises sliding sleeve main part and internal tooth sliding sleeve, the outer wall symmetry of internal tooth sliding sleeve is fixed with two fixture blocks, the rectangular channel has been seted up to the inner wall symmetry of sliding sleeve main part, the fixture block is located the inside of rectangular channel, circular recess has been seted up on the surface of fixture block, the equipment hole has been seted up to the terminal surface of rectangular channel, the inside of circular recess is provided with the equipment piece, the one end of equipment piece extends to the downthehole portion of equipment.

Preferably, the other end of the assembly block is provided with four springs, and the four springs are in a circular array about a central axis of the assembly block.

Preferably, the spring inboard is provided with spacing slide bar, the one end outer wall cover of spacing slide bar is equipped with spacing sleeve, spacing slide bar is fixed at circular recess terminal surface, spacing sleeve is fixed at the equipment piece terminal surface.

Preferably, a stepped hole is formed in the end face of the assembling hole, and a sealing plug is arranged on the inner side of the stepped hole.

Preferably, the inner wall of internal tooth sliding sleeve is provided with the internal spline, the one end outer wall of gear is provided with the external spline, the internal spline all is provided with the closed angle inclined plane that is the triangle-shaped with the both ends surface of external spline.

Preferably, one side of the gear is provided with a retaining ring which is sleeved on the outer wall of the shaft post.

Compared with the prior art, the invention has the beneficial effects that:

(1) the traditional integrated sliding sleeve is split into two parts through the designed sliding sleeve main body and the inner tooth sliding sleeve, when the inner spline is required to be replaced, only the inner tooth sliding sleeve provided with the inner spline needs to be disassembled and replaced, the replacement cost is greatly reduced, the clamping block slides into the rectangular groove through the designed clamping block to realize the quick splicing of the sliding sleeve main body and the inner tooth sliding sleeve, the assembling block is clamped in the assembling hole through the designed assembling block, the position of the clamping block in the rectangular groove is limited, the sliding is avoided, the assembling firmness of the invention is improved, the assembling block is elastically extruded through the designed spring, one end of the assembling block is pushed to be inserted into the assembling hole to realize the quick fixation, the assembling block is limited through the designed limiting slide rod and limiting sleeve, the ejecting separation of the assembling block from the circular groove is avoided, and the sealing effect of the assembling hole is realized through the designed sealing plug, prevent the external dust from falling into the device to cause blockage.

(2) Through the closed angle inclined plane of design, the closed angle is handled to every tooth to the external splines terminal surface at sliding sleeve subassembly's internal spline terminal surface and gear, make it form closed angle inclined plane, and then guarantee that gear sliding engagement has become the line collision meshing this moment by original face collision meshing, and closed angle inclined plane can form the effect of a direction to the meshing, when making sliding sleeve subassembly and gear sliding engagement, can find the meshing point rapidly, and the smooth-going no abnormal sound of meshing, the meshing is efficient.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;

FIG. 3 is a side view of the sliding sleeve assembly of the present invention;

FIG. 4 is a structural, partially sectioned view of the sliding sleeve assembly of the present invention;

FIG. 5 is a schematic view of a range gear of the present invention;

in the figure: 1. a column shaft; 2. a retainer ring; 3. a gear; 4. a sliding sleeve main body; 5. assembling the blocks; 6. a clamping block; 7. an internal tooth sliding sleeve; 8. a hub; 9. a limiting sleeve; 10. a limiting slide bar; 11. a rectangular groove; 12. assembling holes; 13. a sealing plug; 14. a circular groove; 15. a spring; 16. an internal spline; 17. a sharp-angled bevel; 18. an external spline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1 to 5, the present invention provides a technical solution: a tooth-shaped structure for improving the sliding engagement efficiency of a gear comprises an axle column 1, a gear 3 and a sliding hub 8 are respectively sleeved on the axle column 1, a sliding sleeve assembly is sleeved on the outer wall of the sliding hub 8 and consists of a sliding sleeve main body 4 and an inner-tooth sliding sleeve 7, the traditional integrated sliding sleeve is split into two parts through the designed sliding sleeve main body 4 and the inner-tooth sliding sleeve 7, when an internal spline 16 needs to be replaced, only the inner-tooth sliding sleeve 7 provided with the internal spline 16 needs to be disassembled and replaced, the replacement cost is greatly reduced, two fixture blocks 6 are symmetrically fixed on the outer wall of the inner-tooth sliding sleeve 7, rectangular grooves 11 are symmetrically formed in the inner wall of the sliding sleeve main body 4, the fixture blocks 6 slide into the rectangular grooves 11 through the designed fixture blocks 6 to realize the quick splicing of the sliding sleeve main body 4 and the inner-tooth sliding sleeve 7, the fixture blocks 6 are positioned inside the rectangular grooves 11, circular grooves 14 are formed in the surface of the fixture blocks 6, the end face of the rectangular groove 11 is provided with an assembling hole 12, an assembling block 5 is arranged inside the circular groove 14, the assembling block 5 is clamped in the assembling hole 12 through the designed assembling block 5, the position of the clamping block 6 in the rectangular groove 11 is limited, sliding is avoided, assembling firmness is improved, one end of the assembling block 5 extends into the assembling hole 12, the other end of the assembling block 5 is provided with four springs 15, the assembling block 5 is subjected to elastic extrusion through the designed springs 15, one end of the assembling block 5 is pushed to be inserted into the assembling hole 12 to achieve quick fixing, and the four springs 15 are in a circular array relative to the central axis of the assembling block 5.

In this embodiment, it is preferred, spring 15 inboard is provided with limit slide bar 10, the one end outer wall cover of limit slide bar 10 is equipped with limit sleeve 9, limit slide bar 10 and limit sleeve 9 through the design, realize spacingly to assembly block 5, avoid it to pop out the separation from circular recess 14, limit slide bar 10 is fixed at circular recess 14 terminal surface, limit sleeve 9 is fixed at assembly block 5 terminal surface, the shoulder hole has been seted up to the terminal surface of assembly hole 12, the inboard of shoulder hole is provided with sealing plug 13, sealing plug 13 through the design, play the sealed effect to assembly hole 12, avoid external dust to fall into and cause the jam.

In this embodiment, preferably, the inner wall of the internal tooth sliding sleeve 7 is provided with an internal spline 16, the outer wall of one end of the gear 3 is provided with an external spline 18, both end surfaces of the internal spline 16 and the external spline 18 are provided with a triangular sharp-angled inclined surface 17, through the designed sharp-angled inclined surface 17, the end surface of the internal spline 16 of the sliding sleeve assembly and the end surface of the external spline 18 of the gear 3 are subjected to sharp-angled treatment, so that the sharp-angled inclined surface 17 is formed, and further, it is ensured that the gear sliding engagement is changed from the original surface-to-surface collision engagement into the line collision engagement at the moment, and the sharp-angled inclined surface 17 can form a guiding effect on the engagement, when the sliding sleeve assembly is in sliding engagement with the gear 3, the engagement point can be found rapidly, and the engagement is smooth and has no abnormal sound, the engagement efficiency is high, one side of the gear 3 is provided with the retaining ring 2, and the retaining ring 2 is sleeved on the outer wall of the shaft column 1.

The working principle and the using process of the invention are as follows: when the invention is used, when the inner tooth sliding sleeve 7 of the sliding sleeve component needs to be replaced, two assembling blocks 5 are pressed to be separated from the assembling hole 12, then the inner tooth sliding sleeve 7 is pushed to be disassembled from the sliding sleeve main body 4, the proper inner tooth sliding sleeve 7 is selected to be assembled into the sliding sleeve main body 4 again to complete the replacement, when the inner tooth sliding sleeve 7 is assembled, the assembling blocks 5 are pressed to enable one end to slide into the circular groove 14 to avoid the interference with the assembly of the fixture block 6, the fixture block 6 slides into the rectangular groove 11, after the fixture block slides into a certain position, the spring 15 exerts elastic force to push the assembling blocks 5 to enable one end to be clamped inside the assembling hole 12 to realize the replacement and the fixation, the invention carries out sharp-angle treatment on each tooth on the end surface of the inner spline 16 of the sliding sleeve component and the end surface of the outer spline 18 of the gear 3 to form a sharp-angle inclined surface 17, and then guarantee that gear sliding engagement has become the line collision meshing this moment by original face collision meshing, and closed angle inclined plane 17 can form the effect of a direction to the meshing, when making sliding sleeve subassembly and gear 3 sliding engagement, can find the meshing point rapidly, and the meshing is smooth-going without abnormal sound, and the meshing is efficient, and one side of gear 3 is provided with retaining ring 2, and retaining ring 2 suit is on the outer wall of jack-post 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.