CN214946201U - Thin-wall inner gear ring - Google Patents

Abstract

The utility model discloses a thin-wall inner gear ring, which comprises a gear ring body and gear teeth, wherein the gear teeth are arranged on the inner wall of the gear ring body, a fixing part is arranged on the lower side of the gear teeth, the fixing part is fixedly connected with the lower side of the inner wall of the gear ring body, a bracket cover is arranged on the upper side of the gear ring body, a bracket ring is arranged in the middle of the bracket cover, an observation hole is arranged on the front side of the bracket ring, the observation hole vertically penetrates through the bracket cover, a fixing ring is arranged on the upper side of the gear ring body, the fixing ring is connected with the upper end of the existing thin-wall inner gear ring in a threaded manner, the contact part between the bracket cover and the existing thin-wall inner gear ring can be contacted, and the bracket cover can be limited by the fixing ring because the fixing ring and the existing thin-wall inner gear ring are fixed, the bracket cover can not fall off from the upper end of the existing thin-wall inner gear ring, so that the gear in the existing thin-wall inner gear ring can not be exposed and enter dust when the bracket is used.

Description

Thin-wall inner gear ring

Technical Field

The utility model belongs to the technical field of the ring gear is relevant, concretely relates to thin wall ring gear.

Background

The inner gear ring is an inner gear which is coaxial with the planet carrier in planetary gear transmission, is embedded on the outer edge of the flywheel after being heated and is fastened on the outer edge of the flywheel after being cooled and is used for being meshed with the gear of the starter to drive the crankshaft to rotate and start the engine, and a reasonable processing technology can be formulated and selected according to the machining deformation characteristic of the large gear ring and the deformation rule of each machining stage; when the starter is started, the driving gear and the flywheel gear ring of the engine generate impact idle running sound, and the reasons are two: the deformation and the clearance are too large, and the minimum finish machining deformation of the large gear ring can be ensured only by ensuring the minimum finish machining allowance no matter the fractional clamping machining or the prestress machining is adopted; the rough machining of the gear milling machine can control the finish machining allowance to be in a small state; the full prestress processing is a more economic and reasonable processing method.

The existing thin-wall ring gear technology has the following problems: when the existing thin-wall ring gear is used, the existing thin-wall ring gear support cover needs to be placed into the existing thin-wall ring gear to work, the peripheral shape of the support cover is the same as the shape of gear teeth on the inner wall of the existing thin-wall ring gear, but when the existing thin-wall ring gear works, the support cover rotates together with the ring gear at the upper end of the existing thin-wall ring gear, and the support cover can possibly fall off from the upper end of the existing thin-wall ring gear, so that gears in the existing thin-wall ring gear are exposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thin wall ring gear to the work of proposing in solving above-mentioned background art in current thin wall ring gear, the support lid rotates together with the ring gear in current thin wall ring gear upper end, and the support lid has probably come off from current thin wall ring gear upper end, leads to the problem that the inside gear of current thin wall ring gear exposes.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a thin wall ring gear, includes the ring gear body and the teeth of a cogwheel, the inner wall of the ring gear body is provided with the teeth of a cogwheel, the downside of the teeth of a cogwheel is provided with the mounting, the inner wall downside fixed connection of mounting and the ring gear body, the upside of the ring gear body is provided with the support lid, the middle part of support lid is provided with the support ring, the front side of support ring is provided with observes the hole, observe the vertical support lid that runs through in hole, the upside of the ring gear body is provided with solid fixed ring, gu fixed ring's lower extreme right side is located the gap department of support lid and the ring gear body.

Preferably, the shape around the bracket cover is the same as the internal teeth of a cogwheel of ring gear, bracket cover and support ring are the structure that the metal material constitutes, the shape of support ring is circular, the inner wall of support ring is the gear shape, the support ring is for the integrated casting shaping with the bracket cover, the bracket cover can be taken off from the ring gear body.

Preferably, the observation hole is provided with four altogether, four the shape of observation hole is circular, four the equal vertical running through of observation hole is covered at the support, four the observation hole is located four directions all around of support ring respectively, gu fixed ring is the structure that the metal material constitutes, gu fixed ring's right-hand member downside is the screw thread shape.

Preferably, the ring gear body and the teeth of a cogwheel and mounting are the integrated casting shaping, the shape of ring gear body is circular, the teeth of a cogwheel are provided with ninety three altogether, ninety three the teeth of a cogwheel all sets up the inner wall at the ring gear body, the cross-sectional shape of mounting is circular, the pressure angle degree of the teeth of a cogwheel is twenty degrees.

Preferably, the cross sectional shape of solid fixed ring is circular, gu fixed ring is the same with the cross sectional shape size of the ring gear body, the peripheral upside of the ring gear body is the screw thread shape, gu fixed ring can rotate in the upper end of the ring gear body, gu fixed ring can reciprocate and take off in the upper end of the ring gear body.

Preferably, the bracket cover is fixed with the upper end of the gear ring body through a fixing ring, the upper surface of the gear ring body is printed with a manufacturer code and a water flow code, and the bracket cover and the four observation holes are integrally cast.

Compared with the prior art, the utility model provides a thin wall ring gear possesses following beneficial effect:

the utility model discloses an increased a solid fixed ring in current thin wall ring gear upper end, gu fixed ring adopts the threaded mode to be connected with the upper end of current thin wall ring gear, can contact the contact site between support lid and the current thin wall ring gear, because gu fixed ring has fixed with current thin wall ring gear, so the support lid will be restricted by solid fixed ring, make the support lid can not drop from the upper end of current thin wall ring gear, when using like this, the inside gear of current thin wall ring gear just can not expose and get into the dust.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a top view structure of a thin-wall ring gear provided by the present invention;

fig. 2 is a schematic view of a front structure of a thin-wall ring gear provided by the present invention;

fig. 3 is a schematic diagram of a cross-sectional structure of a thin-wall inner gear ring provided by the present invention;

fig. 4 is a schematic view of a profile structure of a thin-wall ring gear tooth provided by the present invention;

in the figure: 1. a fixing ring; 2. a bracket cover; 3. a stent ring; 4. an observation hole; 5. a ring gear body; 6. gear teeth; 7. and a fixing member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a thin wall ring gear, including ring gear body 5 and the teeth of a cogwheel 6, the inner wall of ring gear body 5 is provided with the teeth of a cogwheel 6, the downside of the teeth of a cogwheel 6 is provided with mounting 7, mounting 7 and ring gear body 5's inner wall downside fixed connection, ring gear body 5's upside is provided with support lid 2, the middle part of support lid 2 is provided with support ring 3, support ring 3's front side is provided with observes hole 4, observe the vertical support lid 2 that runs through in hole 4, ring gear body 5's upside is provided with solid fixed ring 1, gu fixed ring 1's lower extreme right side is located the gap department of support lid 2 and ring gear body 5.

A thin-wall inner gear ring, the shape of the periphery of a support cover 2 is the same as that of gear teeth 6 in a gear ring body 5, the support cover 2 and the support ring 3 are both of structures made of metal materials, the support ring 3 is circular, the inner wall of the support ring 3 is gear-shaped, the support ring 3 and the support cover 2 are integrally cast, the support cover 2 can be taken down from the gear ring body 5, four observation holes 4 are arranged, the shape of the four observation holes 4 is circular, the four observation holes 4 vertically penetrate through the support cover 2, the four observation holes 4 are respectively positioned in the front, the back, the left and the right directions of the support ring 3, a fixing ring 1 is of a structure made of metal materials, the lower side of the right end of the fixing ring 1 is thread-shaped, the gear ring body 5, the gear teeth 6 and a fixing piece 7 are integrally cast, the shape of the gear ring body 5 is circular, the gear teeth 6 are ninety-three, ninety-three gear teeth 6 are all arranged on the inner wall of the gear ring body 5, the cross sectional shape of mounting 7 is circular, the pressure angle number of teeth of a cogwheel 6 is twenty degrees, the cross sectional shape of solid fixed ring 1 is circular, gu fixed ring 1 is the same with the cross sectional shape size of ring gear body 5, the peripheral upside of ring gear body 5 is the screw thread shape, gu fixed ring 1 can rotate in the upper end of ring gear body 5, gu fixed ring 1 can reciprocate and take off in the upper end of ring gear body 5, support lid 2 is fixed with the upper end of ring gear body 5 through solid fixed ring 1, the upper surface of ring gear body 5 is printed with factory code and water flow sign indicating number, support lid 2 is pouring shaping as an organic whole with four observation holes 4.

The utility model discloses a theory of operation and use flow: after the utility model is installed, other pinions are firstly put into the gear ring body 5, so that the pinions are contacted with the gear teeth 6 on the inner wall of the gear ring body 5, the main gear at the middle part is put into the gear ring body 5, the bracket ring 3 at the upper end of the bracket cover 2 is sleeved on the main gear, the bracket cover 2 and the bracket ring 3 move downwards until the edge of the bracket cover 2 is contacted with the gear teeth 6 on the inner wall of the gear ring body 5, at this time, when the fixing ring 1 is mounted from the upper end of the ring gear body 5, the fixing ring 1 is first placed on the upper end of the ring gear body 5, then the fixed ring 1 is rotated until the fixed ring 1 and the gear ring body 5 are fixed, at this time, the contact part of the bracket cover 2 and the gear ring body 5 is shielded by the fixed ring 1, because the fixed ring 1 and the gear ring body 5 are fixed, the carrier cover 2 is not separated from the ring gear body 5 so that the internal pinion and main gear are not contacted with the outside and dust is not introduced.

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.

Claims (5)

1. The utility model provides a thin wall ring gear, includes ring gear body (5) and teeth of a cogwheel (6), its characterized in that: the inner wall of ring gear body (5) is provided with teeth of a cogwheel (6), the downside of teeth of a cogwheel (6) is provided with mounting (7), inner wall downside fixed connection of mounting (7) and ring gear body (5), the upside of ring gear body (5) is provided with support lid (2), the middle part of support lid (2) is provided with support ring (3), the front side of support ring (3) is provided with observes hole (4), observe vertical support lid (2) that runs through of hole (4), the upside of ring gear body (5) is provided with solid fixed ring (1), the lower extreme right side of solid fixed ring (1) is located the gap department of support lid (2) and ring gear body (5).

2. A thin-walled ring gear according to claim 1 wherein: the support cover is characterized in that the periphery of the support cover (2) is the same as the gear teeth (6) in the gear ring body (5), the support cover (2) and the support ring (3) are both of structures formed by metal materials, the support ring (3) is circular, the inner wall of the support ring (3) is in a gear shape, the support ring (3) and the support cover (2) are integrally cast and formed, and the support cover (2) can be taken down from the gear ring body (5).

3. A thin-walled ring gear according to claim 1 wherein: observe hole (4) and be provided with four altogether, four the shape of observing hole (4) is circular, four observe all vertical running through on support lid (2) in hole (4), four observe four directions all around that hole (4) are located support ring (3) respectively, gu fixed ring (1) is the structure that the metal material constitutes, gu the right-hand member downside of fixed ring (1) is the screw thread shape.

4. A thin-walled ring gear according to claim 1 wherein: the gear ring body (5) and the gear teeth (6) and the fixing piece (7) are integrally cast and formed, the gear ring body (5) is circular, the gear teeth (6) are provided with ninety-three and ninety-three, the gear teeth (6) are all arranged on the inner wall of the gear ring body (5), the cross section of the fixing piece (7) is circular, and the pressure angle degree of the gear teeth (6) is twenty degrees.

5. A thin-walled ring gear according to claim 1 wherein: the cross sectional shape of solid fixed ring (1) is circular, the cross sectional shape size of solid fixed ring (1) and the ring gear body (5) is the same, the peripheral upside of ring gear body (5) is the screw thread shape, gu fixed ring (1) can rotate in the upper end of the ring gear body (5), gu fixed ring (1) can reciprocate and take off in the upper end of the ring gear body (5).

Images