CN110732875A

CN110732875A - quick assembly device for train traction motor driving gear

Info

Publication number: CN110732875A
Application number: CN201911154888.3A
Authority: CN
Inventors: 高伟; 张琼洁; 冯湘; 金光; 李长留; 穆荣果
Original assignee: Zhengzhou Railway Vocational and Technical College
Current assignee: Zhengzhou Railway Vocational and Technical College
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-01-31

Abstract

The invention relates to a quick assembly device for a driving gear of a train traction motor, which comprises a base, an air cylinder and vertical plates, wherein the upper end of the base is symmetrically provided with two arc vertical plates, a cavity is formed between the two vertical plates and the upper end of the base, the air cylinder is arranged in the vertical plates and close to the end of the base, the vertical plates are provided with guide rails, an output shaft of the air cylinder is connected with the guide rails through a fixed sleeve, a half-unit is arranged in the cavity and comprises an outer gear sleeve and an inner gear ring sleeve, and the inner gear ring sleeve is connected with the outer gear sleeve.

Description

quick assembly device for train traction motor driving gear

Technical Field

The invention belongs to the technical field of mechanical transmission, and particularly relates to a rapid assembly device for driving gears of train traction motors.

Background

The coupling is arranged between the motor and the gear box, and mainly has the function of efficiently and stably transmitting the output torque to the gear box and simultaneously to the driving wheel pair through the gear reduction box, the traction motor transmits the torque to the coupling through the output shaft, and the torque is transmitted to the driving gear shaft in the gear box through the coupling, thereby braking the train.

In the traditional gear assembly, positioning pin holes and fastening bolt holes are designed and processed on a fluted disc, two gears determine relative positions through the positioning pin holes processed on the fluted discs, meanwhile, fastening bolts are utilized to assemble and connect the two gears, the gears mainly bear the transverse shearing force and the friction force of the contact areas of the large gear and the small gear by the bolts in work so as to ensure that the large gear and the small gear are quite static.

Disclosure of Invention

The invention aims to solve the problems in the background technology and provides quick assembling devices for train traction motor driving gears, which can prolong the service life of parts.

The purpose of the invention is realized as follows:

train traction motor driving gear rapid Assembly device, including base, cylinder and riser, two arc risers are established to the upper end symmetry of base, between two risers, the upper end vacuole formation of base, the cylinder is established to the inside of riser, the end that is close to the base, set up the guide rail on the riser, the output shaft of cylinder passes through fixed cover and connects the guide rail, establish partly in the cavity and ally oneself with, partly ally oneself with including outer tooth cover and ring gear sleeve, the outer tooth cover of ring gear muffjoint.

, the base is a cylindrical structure with an upper opening and a lower opening, and the opening of the base coincides with the axle center between the half-joint and the two vertical plates.

, setting holes are arranged on two sides of the base.

, two half-links are arranged, the two half-links are connected through a central plate bolt, and rubber pads are symmetrically arranged on the side of the outer tooth sleeve close to the central plate.

And , engaging and connecting the inner gear ring sleeve with the outer gear sleeve, and arranging a reset rubber block at the position of the inner gear ring sleeve corresponding to the outer gear ring.

And , arranging an elastic pin in the inner teeth of the inner gear ring sleeve, wherein the elastic pin is a cotter pin, and arranging a sealing ring at the joint between the inner teeth of the inner gear ring sleeve and the outer teeth of the outer gear sleeve.

, pressing blocks are arranged at the upper ends of the two vertical plates and are matched with the upper ends of the half connectors, and the pressing blocks are connected with the guide rails in a sliding mode.

And , arranging a plug at the joint of the half-joint and the central plate.

, the angular displacement of the outer teeth of the outer sleeve is less than or equal to-6 ° and greater than or equal to 6 °.

, the two half-coupling connection forms couplings, and the compensation amount of the couplings is less than or equal to 20.5mm and more than or equal to 24.5 mm.

, the contact stress of the coupling satisfies the following conditions:

wherein h represents the effective tooth height when the external teeth and the internal teeth of the coupler are in contact; e is the elastic modulus of the coupler, E is more than or equal to 195000 and less than or equal to 210000N/mm, R represents the curvature radius of the external tooth and internal tooth working circle tangent plane of the coupler, and

wherein b represents the tooth width of the gear, K represents the tooth width coefficient, and theta is a pressure angle; f represents the normal force of the gear, and F is more than or equal to 25 degrees and less than or equal to 30 degrees.

, the elastic modulus E and the compensation amount a of the coupling are satisfied, and E & a is equal to or more than 4058000 and equal to or less than 5123000.

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

1. according to the quick assembling device for the driving gear of the train traction motor, the output shaft of the air cylinder fixes the half-coupling through the fixing sleeve, the half-coupling is controlled to be downwards connected with the shaft end of the motor or the driving gear on the guide rail, the half-coupling and the shaft end of the motor or the driving gear are assembled by pressing the pressing block by steps, so that the motor and the driving gear are assembled, fixing positioning holes are formed in two ends of the base, positioning holes and fastening bolt holes do not need to be machined in parts, and the service life of the parts can be effectively prolonged.

2. The quick assembling device for the train traction motor driving gear, provided by the invention, is characterized in that half couplings are respectively assembled with a motor shaft and a driving gear shaft under the action of an air cylinder, then the two half couplings are assembled into couplings through a central plate, each coupling is provided with 2 outer gear sleeves and 2 inner gear ring sleeves, the inner gear ring sleeves are mutually meshed with the corresponding outer gear sleeves, the output torque and the rotary motion of a motor can be transmitted into a gear box, the inner gear ring sleeves can axially move relative to a drum-shaped outer gear shaft sleeve, and a motor output shaft and a gear box input shaft can axially and radially move.

3. According to the quick assembling device for the train traction motor driving gear, the rubber pad is arranged at the end part of the outer gear sleeve, when the coupler is subjected to axial, radial and angular displacements in the running process of the coupler, the outer gear sleeve is displaced relative to the inner gear ring, the rubber pad is in contact with the central plate and bounces off, and the central plate is automatically restored to the middle position, so that balance is achieved.

4. According to the quick assembling device for the driving gear of the train traction motor, the output shaft at the motor end is connected with the half-joint inner gear ring assembly, the driving gear input shaft at the gear box end is connected with the other half-joint inner gear ring, when the coupler operates, the torque of the coupler is transmitted to the half-joint through the input shaft and then transmitted to the elastic pin connected with the half-joint and the inner gear, and the elastic pin transmits the inner gear to the inner gear of the coupler through the own specific rigidity and eliminates the vibration and impact generated during starting or braking.

Drawings

FIG. 1 is a schematic structural diagram of a rapid assembling device for driving gears of train traction motors.

Fig. 2 is a view of the half-coupling motor assembly of the present invention.

Fig. 3 is a half-gear and drive gear of the present invention.

Fig. 4 is a schematic view of a riser of the present invention.

Fig. 5 is a semi-schematic view of the present invention.

Fig. 6 is a cross-sectional view of the present invention in half.

Fig. 7 is a schematic view of the outer sleeve of the present invention.

Fig. 8 is a schematic view of an annulus gear sleeve of the present invention.

In the figure: 1. a base; 2. a vertical plate; 3. a guide rail; 4. fixing a sleeve; 5. a cylinder; 6. positioning holes; 7. briquetting; 8. half-linking; 81. an inner gear ring sleeve; 82. an outer gear sleeve; 83. a center plate; 84. a rubber pad; 85. resetting the rubber block; 86. an elastic pin; 87. and (5) sealing rings.

Detailed Description

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

Example 1

Combine shown in fig. 1-4, train traction motor driving gear rapid Assembly device, including base 1, cylinder 5 and riser 2, base 1 is upper and lower open-ended cylindric structure, base 1's both sides are run through and are set for a position hole 6, two arc riser 2 are established to base 1's upper end symmetry, base 1's opening and half ally oneself with 8 and two riser 2 between the axle center coincide all, between two riser 2, base 1's upper end vacuole formation, the cylinder 5 is established to the inside of riser 2, the end that is close to base 1, set up guide rail 3 on the riser 2, the output shaft of cylinder 5 connects guide rail 3 through fixed cover 4, establish half in the cavity and ally oneself with 8.

The upper ends of the two vertical plates 2 are provided with press blocks 7, the press blocks 7 are matched with the upper ends of the half-coupling blocks 8, and the press blocks 7 are connected with the guide rail 3 in a sliding mode.

The half coupler 8 is connected with the output shaft end of the air cylinder 5 through the fixing sleeve 4, the base penetrates through the positioning hole 6 through the positioning pin to be fixed with the motor, the output shaft end of the motor is connected with the cavity and inner gear ring assemblies of the half coupler 8, the inner gear ring assembly of the other half coupler 8 is connected with the input shaft end of the driving gear, and then the two half couplers are assembled to complete the assembly of the motor and the driving gear.

Example 2

train traction motor driving gear rapid Assembly device, including base 1, cylinder 5 and riser 2, base 1 is upper and lower open-ended cylindric structure, base 1's both sides are run through and are set for a hole 6, two arc riser 2 are established to base 1's upper end symmetry, base 1's opening and half ally oneself with 8 and two riser 2 between the axle center coincide all, between two riser 2, base 1's upper end vacuole formation, the cylinder 5 is established to the inside of riser 2, the end that is close to base 1, set up guide rail 3 on the riser 2, the output shaft of cylinder 5 connects guide rail 3 through fixed cover 4, establish half in the cavity and ally oneself with 8.

With reference to fig. 5-8, the half coupler 8 includes an outer gear sleeve 82 and an inner gear sleeve 81, the inner gear sleeve 81 is engaged with the outer gear sleeve 82, a reset rubber block 85 is disposed at a position of the inner gear sleeve 81 corresponding to the outer gear 82, rubber pads 84 are symmetrically disposed at sides of the outer gear sleeve 82 close to the central plate 83, elastic pins 86 are disposed in inner teeth of the inner gear sleeve 81, and a sealing ring 87 is disposed at a connection position between the inner teeth of the inner gear sleeve 81 and the outer teeth of the outer gear sleeve 82.

When the coupler runs, the torque of the coupler is transmitted to the half coupler through the input shaft and then transmitted to the elastic pin connected with the half coupler and the inner teeth, the elastic pin transmits the inner teeth to the inner teeth of the coupler through the own specific rigidity, and vibration and impact generated during starting or braking are eliminated.

Example 3

The two half-coupling connection bodies form couplers, and the compensation amount of the couplers is less than or equal to 20.5mm and more than or equal to 24.5 mm.

The contact stress of the coupler satisfies the following conditions:

(0.4. ltoreq. k. ltoreq.0.5), wherein h represents the effective tooth height when the external teeth and the internal teeth of the coupling are in contact; e is the elastic modulus of the coupler, E is more than or equal to 195000 and less than or equal to 210000N/mm, R represents the curvature radius of the external tooth and internal tooth working circle tangent plane of the coupler, and

The elastic modulus E of the coupler and the compensation amount a meet the condition that E & a is greater than or equal to 4058000 and less than or equal to 5123000.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents and substitutions made within the scope of the present invention should be included.

Claims

The quick assembly device for the driving gear of the train traction motor is characterized by comprising a base (1), a cylinder (5) and vertical plates (2), wherein the two arc-shaped vertical plates (2) are symmetrically arranged at the upper end of the base (1), a cavity is formed between the two vertical plates (2) and at the upper end of the base (1), the cylinder (5) is arranged inside the vertical plate (2) and at the end close to the base (1), a guide rail (3) is arranged on the vertical plate (2), an output shaft of the cylinder (5) is connected with the guide rail (3) through a fixed sleeve (4), a half link (8) is arranged in the cavity, the half link (8) comprises an outer gear sleeve (82) and an inner gear ring sleeve (81), and the inner gear ring sleeve (81) is connected with the outer gear sleeve (82).
2. The quick assembling device for driving gears of train traction motors in accordance with claim 1, wherein the base (1) is a cylindrical structure with an upper opening and a lower opening, and the openings of the base (1) are coincident with the axial centers between the half-coupling (8) and the two vertical plates (2).
3. The quick assembling device for driving gears of train traction motors in accordance with claim 1, wherein the setting holes (6) are formed through both sides of the base (1).
4. The quick assembling device for train traction motor driving gears is characterized in that two half-couplings (8) are arranged, the two half-couplings (8) are connected through a central plate (83) through bolts, and rubber pads (84) are symmetrically arranged on the side, close to the central plate (83), of the outer gear sleeve (82).
5. The quick assembling device for driving gears of train traction motors as claimed in claim 1, wherein the inner gear sleeve (81) is engaged with the outer gear sleeve (82), and a reset rubber block (85) is disposed at the position of the inner gear sleeve (81) corresponding to the outer gear (82).
6. The quick assembling device for driving gears of train traction motors is characterized in that elastic pins (86) are arranged in the inner teeth of the inner gear ring sleeve (81), and a sealing ring (87) is arranged at the joint between the inner teeth of the inner gear ring sleeve (81) and the outer teeth of the outer gear sleeve (82).
7. The quick assembling device for the driving gear of the train traction motor is characterized in that the upper ends of the two vertical plates (2) are provided with pressing blocks (7), the pressing blocks (7) are matched with the upper ends of the half-links (8), and the pressing blocks (7) are slidably connected with the guide rail (3).