CN218761229U - Auxiliary box low gear combination gear ring and gear ring positioning plate - Google Patents

Abstract

The utility model discloses a subbox low gear combines ring gear and ring gear locating plate belongs to auto parts equipment technical field. The gear ring locating plate is characterized by comprising a sub-box low-gear combined gear ring and a gear ring locating plate, wherein a combined gear ring external spline and a combined gear ring limiting groove are formed in the sub-box low-gear combined gear ring, a locating plate connecting spline and a locating plate limiting boss protruding towards the central part are arranged in an inner hole of the gear ring locating plate, the connecting spline on the gear ring locating plate can be assembled with the combined gear ring external spline on the sub-box low-gear combined gear ring, and the position and the shape of the locating plate limiting boss correspond to the position of the combined gear ring limiting groove and are the same in shape. This structure is compared original combination ring gear and ring gear locating plate structure, and the external splines on the combination ring gear unites two into one, and the structure obtains simplifying, need not process the tool withdrawal groove between step and the spline, can reduce the partial axial dimensions who combines ring gear external splines, and the cost is lower, combines the whole tooth width of external splines on the ring gear and wall thickness grow simultaneously, and spline tooth intensity is better, and operational reliability is higher.

Description

Auxiliary box low gear combination gear ring and gear ring positioning plate

Technical Field

The utility model belongs to the technical field of auto parts equipment, concretely relates to auxiliary tank low gear combines ring gear and ring gear locating plate.

Background

In the main and auxiliary box combined transmission with a planetary mechanism as a rear auxiliary box, in order to realize speed reduction transmission of the rear auxiliary box, a large gear ring needs to be fixed, the sun gear rotates to be used as an input element, and the planet carrier transmits power to the main shaft of the auxiliary box to output so as to realize speed reduction transmission. Usually, the low-gear combined gear ring of the auxiliary box synchronizer is connected with a combined gear ring positioning plate fixedly connected with a rear cover shell, so that the fixation of a synchronizer sliding sleeve, a synchronizer gear hub, a gear ring support and a large gear ring connected with the low-gear combined gear ring is realized. As shown in fig. 1 to 3, the low-gear combined gear ring and the combined gear ring positioning plate are usually connected by spline connection or welding, when the low-gear combined gear ring and the combined gear ring positioning plate are connected by spline connection, the combined gear ring and the gear ring positioning plate need to be axially limited by a step structure on the gear ring (as shown in fig. 2), the combined gear ring needs to be separately provided with a spline connected with the combined gear ring positioning plate and a spline matched with a synchronizer sliding sleeve, and a tool withdrawal groove needs to be arranged between the spline and the spline due to machining requirements, so that the low-gear combined gear ring has a complex structure and relatively high cost. Under the condition of a certain axial size of the gear ring, the combined teeth are narrower and have low strength.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming of the prior art, the utility model aims to provide a combination ring gear and ring gear locating plate are kept off to auxiliary tank low gear, when solving current combination ring gear and ring gear locating plate and passing through splined connection, the structure is complicated, intensity is not high and with high costs problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

the utility model discloses a subordination case low gear combines ring gear and ring gear locating plate, the subordination case low gear is equipped with on combining the ring gear external splines and combining the ring gear spacing groove, combines the setting of ring gear spacing groove interval on combining the ring gear external splines, and the hole and the subordination case low gear of ring gear locating plate combine the ring gear cooperation.

Preferably, the limit groove of the coupling gear ring is a groove recessed inward along the end face of the coupling gear.

Further preferably, the groove is semi-arc-shaped or rectangular.

Preferably, the number of the limit grooves of the combined gear ring is 2 or 3.

Preferably, the width of the external spline of the combined gear ring is larger than that of the limiting groove of the combined gear ring.

Preferably, the inner hole of the gear ring positioning plate is provided with a positioning plate connecting spline and a positioning plate limiting boss protruding towards the central part, the positioning plate connecting spline on the gear ring positioning plate is assembled with a combined gear ring external spline on the auxiliary box low-gear combined gear ring, and the position of the positioning plate limiting boss corresponds to the combined gear ring limiting groove.

Further preferably, the positioning plate limit boss corresponds to the combination gear ring limit groove in shape.

Preferably, the external spline of the gear ring is combined and simultaneously matched with the spline of the synchronizer sliding sleeve and the locating plate connecting spline on the gear ring locating plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a pair of case low gear combines ring gear and ring gear locating plate, through setting up locating plate spacing boss in the spline inner bore department of ring gear locating plate, with the combination ring gear spacing groove cooperation that the corresponding position set up on the case low gear combines the ring gear to low gear combines the ring gear axial spacing; the auxiliary box low-gear combined gear ring is circumferentially limited by combining the external spline of the gear ring and the spline of the gear ring positioning plate. The positioning mode can simplify the structure of the low-gear combined gear ring, reduce the processing cost and improve the strength and the working reliability of the combined gear. Compared with the existing mode that the combined gear ring is connected with the gear ring positioning plate through a spline, the auxiliary box low-gear combined gear ring and gear ring positioning plate simplifies the structure of the combined gear ring, cancels a spline which is independently arranged on the original combined gear ring (shown in figure 2) and is connected with the combined gear ring positioning plate, lengthens the spline tooth matched with the synchronizer sliding sleeve, enables the spline tooth to be simultaneously connected with the synchronizer sliding sleeve spline and the positioning plate for spline matching, combines external splines on the gear ring into one, greatly simplifies the structure, does not need to arrange steps among the splines and tool withdrawal grooves among the splines, can reduce the integral axial size of the spline part of the combined gear ring, and has lower processing cost; and meanwhile, the integral tooth width and the wall thickness of the external spline on the gear ring are increased, so that the strength of the spline tooth is better, and the working reliability is higher.

Drawings

FIG. 1 is a schematic view of the assembly of a low-gear combination gear ring and a gear ring positioning plate of an auxiliary box with an original structure;

FIG. 2 is a schematic view of a low-gear combination gear ring of an auxiliary box with an original structure;

FIG. 3 is a schematic view of a positioning plate for a gear ring in an original structure;

FIG. 4 is an assembly view of the novel auxiliary box low-gear combination gear ring and the gear ring positioning plate of the present invention;

fig. 5 is an assembly side view of the novel auxiliary box low-gear combination gear ring and gear ring positioning plate of the present invention;

FIG. 6 is a schematic view of the auxiliary box low-gear combination gear ring of the present invention;

fig. 7 is a schematic view of the gear ring positioning plate of the present invention.

Wherein: 1-auxiliary box low gear combination gear ring; 11-combining the gear ring external spline; 12-combining a gear ring limiting groove; 2-a gear ring positioning plate; 21-the positioning plate is connected with the spline; 22-a positioning plate limit boss; 3-original auxiliary box low gear combination gear ring; 31-connecting the spline with the synchronizer sliding sleeve by combining the gear ring; 32-the combination gear ring is connected with the positioning plate through a spline; 4-original structure gear ring positioning plate.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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 efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present invention will be described in further detail with reference to the accompanying drawings:

the utility model provides a pair of case low gear combination ring gear and ring gear locating plate, as shown in FIG. 4, FIG. 5 and FIG. 6, be equipped with combination ring gear external splines 11 and combination ring gear spacing groove 12 on the combination ring gear 1 of case low gear, combine ring gear external splines 11 can cooperate with locating plate connecting splines 21 on synchronizer sliding sleeve splines and ring gear locating plate 2 simultaneously, the width of combination ring gear external splines 11 is greater than the width of combination ring gear spacing groove 12; the coupling ring gear limiting groove 12 is a groove recessed inward along the coupling tooth end surface, the shape of the groove includes but is not limited to a semi-arc shape or a rectangular shape, and the number of the grooves includes but is not limited to 2 or 3. As shown in fig. 7, the inner hole of the gear ring positioning plate 2 is provided with a positioning plate connecting spline 21 and a positioning plate limiting boss 22 protruding toward the central portion, the positioning plate connecting spline 21 on the gear ring positioning plate 2 can be assembled with the combined gear ring external spline 11 on the auxiliary box low gear combined gear ring 1, and the position and shape of the positioning plate limiting boss 22 correspond to the position and shape of the combined gear ring limiting groove 12.

When the auxiliary box low-gear combined gear ring 1 is assembled with the gear ring positioning plate 2, the combined gear ring limiting groove 12 on the auxiliary box low-gear combined gear ring 1 is aligned with the positioning plate limiting boss 22, so that the combined gear ring external spline 11 on the auxiliary box low-gear combined gear ring 1 is sleeved into the positioning plate connecting spline 21 of the inner hole of the gear ring positioning plate 2, the combined gear ring limiting groove 12 on the auxiliary box low-gear combined gear ring 1 is matched with the positioning plate limiting boss 22, the end surface of the positioning plate limiting boss 22 is in plane contact with the bottom of the combined gear ring limiting groove 12, the auxiliary box low-gear combined gear ring 1 is prevented from further axially moving towards the gear ring positioning plate 2, and the axial limiting of the connection between the combined gear ring and the gear ring positioning plate is realized.

Compare former auxiliary box low gear combination ring gear 3 and former structure ring gear locating plate 4, the utility model provides an auxiliary box low gear combination ring gear 1 has simplified the structure of combination ring gear with ring gear locating plate 2, the combination ring gear that sets up alone on former auxiliary box low gear combination ring gear 3 and is connected with former structure ring gear locating plate 4 and locating plate connecting spline 32 have been cancelled, the combination ring gear that combines ring gear 3 and synchronizer sliding sleeve cooperation with former auxiliary box low gear and synchronizer sliding sleeve connecting spline 31 lengthen, make combination ring gear external spline 11 can cooperate with synchronizer sliding sleeve spline and locating plate connecting spline 21 simultaneously, combine ring gear and synchronizer sliding sleeve connecting spline 31 and combination ring gear and locating plate connecting spline 32 on former auxiliary box low gear combination ring gear 3 into one, the structure is greatly simplified, need not set up the step between the spline and the tool withdrawal groove between the spline, can reduce the whole axial size of combination ring gear spline part, the processing cost is lower; meanwhile, the overall tooth width and the wall thickness of the external spline on the original auxiliary box low-gear combined gear ring 3 are increased, so that the auxiliary box low-gear combined gear ring 1 is obtained, the strength of the spline teeth is better, and the working reliability is higher.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (8)

1. The utility model provides a combination ring gear and ring gear locating plate are kept off to odd-side case low gear, its characterized in that, the odd-side case low gear is equipped with on combining ring gear external splines (11) and combining ring gear spacing groove (12) on combining ring gear external splines (11) with combining ring gear spacing groove (12) interval setting, the hole and the odd-side case low gear of ring gear locating plate (2) combine ring gear (1) cooperation.

2. A sub-tank low gear combination ring gear and ring gear positioning plate as claimed in claim 1, wherein the combination ring gear retaining groove (12) is a groove recessed inward along the end face of the combination tooth.

3. A range section low gear combination ring gear and ring gear retaining plate in accordance with claim 2 wherein said recess is semi-arcuate or rectangular.

4. A sub-tank low range combination ring gear and ring gear positioning plate as claimed in claim 1, wherein the number of the combination ring gear limiting grooves (12) is 2 or 3.

5. A range gate of a combination ring gear and ring gear of a sub-tank low gear according to claim 1, characterized in that the width of the external spline (11) of the combination ring gear is larger than the width of the limit groove (12) of the combination ring gear.

6. The auxiliary box low-gear combination gear ring and gear ring positioning plate as claimed in claim 1, wherein the inner hole of the gear ring positioning plate (2) is provided with a positioning plate connecting spline (21) and a positioning plate limiting boss (22) protruding to the central part, the positioning plate connecting spline (21) on the gear ring positioning plate (2) is fitted with the combination gear ring external spline (11) on the auxiliary box low-gear combination gear ring (1), and the position of the positioning plate limiting boss (22) corresponds to the combination gear ring limiting groove (12).

7. A sub-tank low gear combination ring gear and ring gear positioning plate as claimed in claim 6, characterized in that the positioning plate limit projection (22) is shaped to correspond to the combination ring gear limit groove (12).

8. A range section low gear combination ring gear and ring gear retaining plate in accordance with claim 6 characterized by that the combination ring gear external splines (11) cooperate with both synchronizer sleeve splines and retaining plate connecting splines (21) on the ring gear retaining plate (2).

Images