CN201645357U

CN201645357U - Special assembly tooling of gear set

Info

Publication number: CN201645357U
Application number: CN2009202734659U
Authority: CN
Inventors: 吴国庆; 吴刚; 李庆林
Original assignee: CRRC Qishuyan Institute Co Ltd
Current assignee: CRRC Qishuyan Institute Co Ltd
Priority date: 2009-08-18
Filing date: 2009-11-27
Publication date: 2010-11-24
Anticipated expiration: 2019-11-27

Abstract

The utility model relates to a special assembly tooling of a gear set, which belongs to the technical field of mechanical transmission. The tooling comprises a seat body; the positions of both sides of the seat body, which correspond to a toothed groove of a first gear, are at least provided with at least one pair of first positioning grooves extending in a radial direction, and the positions of both sides of the seat body, which correspond to a toothed groove of a second gear, are provided with at least one second positioning groove extending in a radial direction; the angular positions of the first positioning grooves and the second positioning grooves correspond to the requirements of the angular positions after the first gear and the second gear are assembled; and the positioning sections of a first positioning pin and a second positioning pin which form a movement pair with the first positioning grooves and the second positioning grooves are respectively installed in the first positioning grooves and the second positioning grooves, and the extension sections of the positioning pins are respectively matched with the toothed grooves of the corresponding gears. By dint of the special tooling, the technological process is simplified, the accuracy of the angular positions after each gear which is singly processed is assembled can be ensured, a detection instrument is not needed, the functional requirement to the purchase of equipment is reduced, the detection cost and the manufacturing cost of a product are lowered, and the utility model is feasible.

Description

A kind of special-purpose assembly tool of gear train

Technical field

The utility model relates to a kind of special tooling, and especially a kind of special-purpose assembly tool of gear train belongs to the mechanical transmissioning technology field.

Background technology

Gear train is very common in mechanical driving device.In-line gears in the gear train during fabrication often not only each gear the accuracy of gear of its setting is arranged, and angular position each other also has strict requirement.For the in-line gears of integral body processing, can by the lathe basis when guaranteeing machining accuracy, satisfy its angular position requirement each other.

Yet, differ greatly for parameter such as diameter, the number of teeth each other, perhaps very compact in-line gears of structure, material is not only taken a lot of work, taken to whole the manufacturing, and difficulty of processing is bigger.For this reason, adopt gear split processing sometimes, be assembled into process route together again.

Understand according to the applicant, the gear angular position the during assembling of existing split processing back need be by the detection means of special use, and constantly adjustment is guaranteed, and is very inconvenient.For example, the processing of two or more gear assembling roll flute needs to adopt the roll flute equipment that has special-purpose detection system to guarantee.

The utility model content

The purpose of this utility model is: at the inconvenient part that above-mentioned prior art exists, propose a kind of angular position precision that not only can guarantee after each gear is assembled, and need not detection system, can simplify the special-purpose assembly tool of the gear train of technical process.

In order to reach above purpose, the special-purpose assembly tool of the utility model gear train comprises pedestal; Described pedestal both sides have first locating slot that at least one pair of radially extends at least in the position of corresponding first gear tooth slot, have second locating slot that at least one radially extends in the position of corresponding second gear tooth slot; The angular position of described first locating slot and second locating slot is corresponding with the angular position requirement after first gear and the assembling of second gear; The positioning section of first and second alignment pins that form moving sets with it is housed respectively in described first locating slot and second locating slot, and the extension of described alignment pin matches with the teeth groove of corresponding gear respectively.

Further, described each alignment pin constitutes by the positioning section that is arranged in locating slot, extension and locking section, has between the positioning section of bolt head and the extension and has locking device.

By special tooling of the present utility model, simplified technical process, can guarantee the angular position precision after each gear of single processing is assembled, detecting instrument-free, reduced functional requirement, reduced the detection and the manufacturing cost of product equipment purchasing, practical.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the special tooling structural representation of an embodiment of the utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 settles the structural representation of first gear for the frock that adopts Fig. 1 embodiment.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 installs the structural representation of second gear for the frock that adopts Fig. 1 embodiment.

Fig. 6 is the vertical view of Fig. 5.

The specific embodiment

Embodiment one

Present embodiment is assembled into example with the gear train that big or small two gears constitute, its special tooling as depicted in figs. 1 and 2, this special tooling is to treat that the Assembling gear axis is that pedestal 1 main body at center is an annular, extending arm is extended in annular main body both sides.The both sides, center of annular main body have a pair of first locating slot 3 that radially extends near the position of correspondence little (first) gear compound graduation circle, the position of corresponding big (second) gear compound graduation circle has second locating slot 2 that radially extends on one of extending arm.The angular position of first locating slot and second locating slot is corresponding with the angular position after first gear and the assembling of second gear, in the present embodiment is on same diameter line.Convenient in order to assemble the location, on the annular main body, also be fixed with along 6 uniform supporting piles 4 of circle spacing.First and second alignment pins (referring to Fig. 3) that form moving sets with it are housed respectively in first locating slot and second locating slot, each alignment pin 6 constitutes by the extension of positioning section that is arranged in locating slot and bar shape, and the column diameter of extension and the between cog of corresponding gear match.Have between the positioning section of bolt head and the extension and have thread segment, therefore can constitute locking device, alignment pin is fixed tightly on the pedestal by the nut that is screwed in thread segment.

During assembling, as shown in Figure 3 and Figure 4, earlier pinion 5 is placed between two first alignment pins 6 with its axis and pedestal 1 Centered position, move two first alignment pins 6 respectively along two first locating slots again, after the flank for the treatment of the extension of first alignment pin 6 and pinion fits tightly, in the interval that supporting pile 4 forms, first alignment pin 6 is fixing with pedestal 1 by nut.

Then, as shown in Figure 5 and Figure 6, with gear wheel 7 heating (also can with pinion sub-cooled individually or simultaneously), the endoporus that itself and 5 positioning table stages of pinion are matched expands, and forms the gap of expanding with heat and contract with cold, and is benchmark with pinion 5 again, gear wheel 7 is fitted in the positioning table of pinion on the stage, and move second alignment pin 8 along second locating slot 2, and fit tightly until the extension of second alignment pin 8 and the flank of gear wheel 7, will be second alignment pin 8 is fixing with pedestal 1 by nut.Keep certain hour, treat that gear wheel cools off fully, after fixing with the reliable close-fitting of pinion, unclamp each alignment pin, take off the gear train that assembles.

Facts have proved, adopt present embodiment to have following outstanding advantage:

1) gear to be assembled is processed respectively, has guaranteed to need to adopt the gear effective case depth and the uniformity of Technologies for Heating Processing such as quenching, carburizing, nitrogenize;

2) significantly reduced the acquisition cost of equipment, reduced the detection cost, thereby, enhanced productivity at the overall manufacturing cost that guarantees to greatly reduce under the product quality premise product;

3) for needs assembling carrying out the again accurately machined gear train of roll flute, owing to guaranteed that gear teeth both sides flank of tooth stock removal is even as far as possible, therefore can under the situation that left and right sides stock removal equates, adopt the shortest bilateral grinding process process time, thereby significantly reduce the follow-up grinding fine finishining time.

In addition to the implementation, the utility model can also have other embodiments.For example, the extension of alignment pin can have the bulb that matches with between cog, thereby fits tightly with a way of contact and flank; For another example, after each gear assembling in place of gear train, can make its mutual secure fixation by modes such as securing member or welding; Or the like.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. the special-purpose assembly tool of a gear train is characterized in that: comprise pedestal; Described pedestal both sides have first locating slot that at least one pair of radially extends at least in the position of corresponding first gear tooth slot, have second locating slot that at least one radially extends in the position of corresponding second gear tooth slot; The angular position of described first locating slot and second locating slot is corresponding with the angular position requirement after first gear and the assembling of second gear; The positioning section of first and second alignment pins that form moving sets with it is housed respectively in described first locating slot and second locating slot, and the extension of described alignment pin matches with the teeth groove of corresponding gear respectively.

2. according to the special-purpose assembly tool of the described gear train of claim 1, it is characterized in that: described each alignment pin constitutes by the positioning section that is arranged in locating slot, extension and locking section, has between the positioning section of bolt head and the extension and has locking device.

3. according to the special-purpose assembly tool of the described gear train of claim 2, it is characterized in that: be fixed with supporting pile uniformly at intervals on the main body of described pedestal.

4. according to the special-purpose assembly tool of the described gear train of claim 3, it is characterized in that: the extension of described alignment pin has cylinder or the bulb that matches with teeth groove.