CN108501973A - A kind of gauge-changeable bogie end face driving mechanism - Google Patents

Abstract

The invention discloses an end face driving mechanism of a variable gauge bogie, which comprises a sliding sleeve, a driving sliding sleeve, a locking arm, a driving arm and a driving roller assembly. The driving sliding sleeve is installed on the sliding sleeve through bolts, and the driving There are two locking arm mounting threaded holes and a driving arm mounting threaded hole on the end face of the sliding sleeve, the locking arm is installed in the locking arm mounting threaded hole, and the driving arm is installed in the driving arm mounting threaded hole The driving roller assembly is installed on the driving arm, and the driving roller assembly rolls on the track-gauge driving rail matched with the ground to realize the change of the track of the wheel pair; the mechanism of the present invention is applicable to a The drive-type variable-gauge bogie gauge conversion device solves the problems of serious wheel flange wear, uneven lateral force, and sliding bushings prone to sticking or uneven wear under the action of bending moments during gauge change.

Description

A Gauge Changing Bogie End Face Driving Mechanism

technical field

The invention belongs to the technical field of bogie systems, and relates to gauge changing technology, in particular to a drive mechanism for a bogie end surface with variable gauge gauge.

Background technique

With the vigorous development of the Silk Road Economic Belt, my country has carried out larger-scale, higher-level, and deeper regional cooperation with countries along the route, and is committed to building an all-round interconnection network. Among them, railway transportation has increasingly become the most important part of the Eurasian road. However, railways with different gauge specifications in different countries and regions have brought many restrictions to the development of international intermodal transport.

Aiming at railways with different gauges, domestic and foreign are committed to researching a variable-gauge bogie, which can adapt to railways with different gauges by changing the wheel set wheelbase of the variable-gauge bogie. At present, the change of the wheel base of the bogie wheel is realized by applying a lateral force to the rim of the wheel set. Uniform and sliding bushings are prone to sticking or uneven wear due to the bending moment.

Contents of the invention

In order to solve the above problems, the present invention proposes an end surface driving mechanism of a variable gauge bogie, which is suitable for an end surface driven type variable gauge bogie gauge conversion device.

A driving mechanism for the end surface of a variable gauge bogie includes a sliding sleeve 3, a driving sliding sleeve 4, a locking arm 5, a driving arm 6, and a driving roller assembly 7. The driving sliding sleeve 4 is installed on the sliding sleeve 3 through bolts. There are two locking arm mounting threaded holes 4-2 and a driving arm mounting threaded hole 4-3 on the end face of the driving sliding sleeve 4, and the locking arm 5 is installed in the locking arm mounting threaded hole 4-2. The drive arm 6 is installed in the drive arm mounting threaded hole 4-3; the drive roller assembly 7 is installed on the drive arm 6, and the drive roller assembly 7 rolls on the matching ground variable gauge drive rail, To realize the change of the wheelbase.

The sliding sleeve 3 is installed on the bearing sliding sleeve integrated mounting seat 2-2 of the shaft sleeve 2 through a tapered roller bearing assembly, the driving sliding sleeve 4 is installed on the sliding sleeve 3 through bolts, and the driving sliding sleeve 4. The tapered roller bearing assembly is laterally positioned, and the driving sliding sleeve 4 can slide integrally with the sliding sleeve 3, the bushing 2, the wheel, etc. relative to the axle 1 in the axial direction.

The two locking arm mounting threaded holes 4-2 on the driving sliding sleeve 4 are located in the horizontal direction, and the two driving arm mounting threaded holes 4-3 on the driving sliding sleeve 4 are located in the vertical direction.

The locking arm 5 is threadedly installed in the locking arm installation threaded hole 4-2 of the drive sliding sleeve 4, and the threaded connection anti-loosening treatment is carried out. Preferably, a stop washer or an adhesive anti-loosening method is used; A locking groove 5-1 is processed on the locking arm 5, and the shape of the locking groove 5-1 is preferably a semicircular groove. match.

The drive arm 6 is threadedly installed in the drive arm installation threaded hole 4-3 of the drive sliding sleeve 4, and the threaded connection anti-loosening treatment is performed, preferably, a stop washer or an adhesive anti-loosening method is used; the drive A vertical driving roller assembly mounting hole 6-1 is processed on the arm 6, and the driving roller assembly 7 is installed in the driving roller assembly mounting hole 6-1.

The driving roller assembly 7 includes a roller shaft, a bearing and a roller, and the driving roller assembly 7 rolls on the matching ground variable-gauge driving rail, and drives the The sliding sleeve 3, the driving sliding sleeve 4, the locking arm 5, and the driving arm 6 slide axially along the axle to realize the change of the wheelbase.

Beneficial effects of the present invention

The mechanism of the present invention is suitable for a track gauge changing device of an end-face-driven variable-gauge bogie. The end face driving mechanism of the present invention is installed on the axle sleeve through the tapered roller bearing assembly. When the gauge is changed, the wheel and the axle sleeve can slide axially on the axle together with the end face driving mechanism to achieve variable wheel gauge. purpose; has the following advantages:

(1) Solve the problem of wheel rim wear during gauge change;

(2) Improve the uneven lateral force on the wheelset of variable gauge bogies and the problems of sticking or uneven wear of the sliding bushing due to the bending moment;

(3) A new gauge change method is provided, which can complete the change of gauge by applying lateral force to the end face driving mechanism, and changes the way of completing the change of gauge by applying lateral force to the wheels.

Description of drawings

Figure 1 is the axle parts diagram, Figure 2 is the shaft sleeve parts diagram, Figure 3 is the sliding sleeve parts diagram, Figure 4 is the drive sliding sleeve parts diagram, Figure 5 is the locking arm parts diagram, and Figure 6 is the driving arm parts diagram, Fig. 7 is the assembly drawing of the end face driving mechanism;

Fig. 8 is a part diagram of the lower axle box base, and Fig. 9 is an assembly drawing of the axle box;

Figure 10 is the first drawing of the lock sleeve, Figure 11 is the second drawing of the lock sleeve, Figure 12 is the parts diagram of the key, Figure 13 is the parts diagram of the guide shaft, Figure 14 is the partial assembly diagram of the wheel set locking mechanism, and Figure 15 is the assembly of the wheel set locking mechanism general plan;

Figure 16 is a schematic diagram of the wheel set locking mechanism and the end face driving mechanism, and Figure 17 is an assembly diagram of the wheel set locking mechanism and the end face drive mechanism;

Figure 18 is a parts diagram of the positioning and centering end cover mounting seat, Figure 19 is a parts diagram of the positioning and centering end cover, and Figure 20 is an assembly diagram of the positioning and centering mechanism of the axle box end cover;

Fig. 21 is a general assembly diagram of a track gauge changing device of an end-drive type variable gauge bogie.

Fig. 22 is a first schematic diagram of the supporting device for changing track gauge on the ground according to the present invention.

Fig. 23 is the second schematic diagram of the supporting device for changing track gauge on the ground according to the present invention.

The names corresponding to the marks in the drawings are:

1. Axle, 1-1. Shaft sleeve with spline, 1-2. Shaft sleeve and wheel integrated installation, 2. Axle sleeve, 2-1. Wheel mounting seat, 2-2. Bearing sleeve integrated mounting seat, 2 -3. Axle with spline hub, 3. Sliding sleeve, 3-1. Face driven sliding sleeve installation threaded hole, 4. Driving sliding sleeve, 4-1. Driving sliding sleeve installation hole, 4-2. Locking arm Mounting threaded hole, 4-3. Driving arm mounting threaded hole, 5. Locking arm, 5-1. Locking groove, 6. Driving arm, 6-1. Mounting hole for driving roller assembly, 7. Driving roller assembly, 8 .Axlebox, 8-1. Upper axlebox cover, 8-2. Lower axlebox base, 8-2-1. End cover locking limit stopper, 8-2-2. End cover locking guide hole, 8-3. End cover lock sleeve installation threaded hole, 9. Lock sleeve, 9-1. Lock sleeve installation hole, 9-2. Guide hole, 9-3. Key slot, 9-4. Key cover installation thread hole, 10. Key cover, 11. Key, 11-1. Lock block, 12. Unlock guide shaft, 12-1. Unlock guide shaft, 12-2. Unlock roller seat, 13. Trapezoidal lock arm, 14. Lock spring , 15. Unlocking roller assembly, 16. Positioning and centering end cap mounting seat, 16-1. U-shaped groove of end cap, 16-2. Positioning and centering end cap mounting seat mounting hole, 16-3. Positioning and centering end cap Mounting threaded hole, 17. Positioning and centering end cover, 17-1. Centering roller mounting seat, 17-2. Centering roller shaft hole, 17-3. Positioning and centering end cover mounting hole, 18. Centering roller assembly , 19. Sleeper, 20. Standard gauge rail, 21. Supporting roller group, 22. Unlocking rail, 23. Mounting bracket, 24. Variable gauge driving rail, 25. Centering rail, 26. Wide gauge rail.

Detailed ways

The present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

The mechanism described in the present invention is suitable for an end-drive type variable-gauge bogie gauge conversion device. An end-drive type variable-gauge bogie gauge change device is composed of an axle box, an end-surface drive mechanism, and a wheel set. Mechanism and axle box end cover positioning and centering mechanism are assembled. The end face driving mechanism is installed on the bushing through the tapered roller bearing assembly. When the gauge is changed, the wheel and the bushing can follow the end face driving mechanism One body slides axially on the axle to achieve the purpose of variable gauge; the following embodiments are based on the existing variable gauge bogie, the structure of the axle 1, the axle sleeve 2 and the positioning method of the axle box are different from the existing variable gauge bogies. The gauge bogies are the same and will not be repeated here. The following embodiments only describe the improvements made by the present invention in detail.

As shown in FIGS. 1-21 , specific implementation methods are described below.

Spline 1-1 on axle sleeve on axle 1 cooperates with spline hub 2-3 on axle sleeve to realize power transmission through splines. Integrated installation of axle sleeve and wheel on axle 1-2 is used for axle sleeve 2 For installation, the wheel is installed on the wheel mounting seat 2-1 on the axle sleeve 2, and the wheel and the axle sleeve 2 can move axially together with respect to the axle shaft.

An end-drive type variable-gauge bogie gauge conversion device, including an axle box, an end-face driving mechanism, a wheel set locking mechanism, and an axle box end cover positioning and centering mechanism; the axle box is connected to the steering frame through a series of suspension The wheel set locking mechanism is installed on the end face of the axle box through bolts, the positioning centering mechanism of the end cover of the axle box is installed on the end face of the wheel set locking mechanism through bolts, and the end face driving mechanism is located on the end face of the axle box Inside, the end surface driving mechanism is respectively matched with the corresponding grooves of the wheel set locking mechanism and the positioning and centering mechanism of the axle box end cover.

The end drive mechanism includes a sliding sleeve 3, a driving sliding sleeve 4, a locking arm 5, a driving arm 6, and a driving roller assembly 7. The driving sliding sleeve 4 is installed on the sliding sleeve 3 through bolts, and the driving sliding sleeve 4 There are respectively two locking arm mounting threaded holes 4-2 and driving arm mounting threaded holes 4-3 on the end faces, and the locking arm 5 is installed in the locking arm mounting threaded holes 4-2, and the driving arm 6 Installed in the driving arm mounting threaded hole 4-3; the driving roller assembly 7 is installed on the driving arm 6, and the driving roller assembly 7 rolls on the supporting ground variable gauge driving rail to realize wheel-to-wheel distance change.

The sliding sleeve 3 is installed on the bearing sliding sleeve integrated mounting seat 2-2 of the shaft sleeve 2 through a tapered roller bearing assembly, the driving sliding sleeve 4 is installed on the sliding sleeve 3 through bolts, and the driving sliding sleeve 4. The tapered roller bearing assembly is laterally positioned, and the driving sliding sleeve 4 can slide integrally with the sliding sleeve 3, the bushing 2, the wheel, etc. relative to the axle 1 in the axial direction.

The two locking arm mounting threaded holes 4-2 on the driving sliding sleeve 4 are located in the horizontal direction, and the two driving arm mounting threaded holes 4-3 on the driving sliding sleeve 4 are located in the vertical direction.

The locking arm 5 is threadedly installed in the locking arm installation threaded hole 4-2 of the drive sliding sleeve 4, and the threaded connection anti-loosening treatment is carried out. Preferably, a stop washer or an adhesive anti-loosening method is used; A locking groove 5-1 is processed on the locking arm 5, and the shape of the locking groove 5-1 is preferably a semicircular groove. match.

The drive arm 6 is threadedly installed in the drive arm installation threaded hole 4-3 of the drive sliding sleeve 4, and the threaded connection anti-loosening treatment is performed, preferably, a stop washer or an adhesive anti-loosening method is used; the drive A vertical driving roller assembly mounting hole 6-1 is processed on the arm 6, and the driving roller assembly 7 is installed in the driving roller assembly mounting hole 6-1.

The driving roller assembly 7 includes a roller shaft, a bearing and a roller, and the driving roller assembly 7 rolls on the matching ground variable-gauge driving rail, and drives the The sliding sleeve 3, the driving sliding sleeve 4, the locking arm 5, and the driving arm 6 slide axially along the axle to realize the change of the wheelbase.

The axle box includes an upper axle box cover 8-1 and a lower axle box base 8-2, which are connected to the bogie frame through a series of suspensions, and the end face of the axle box is installed with an end cover lock sleeve for the installation of the wheel set locking mechanism Threaded hole 8-3, the end face of the lower axle box base is processed with an end cover locking limit stopper 8-2-1, and an end cover lock is opened on the end cover locking limit stopper 8-2-1 The guide hole 8-2-2 is tightened, and the end cover lock guide hole 8-2-2 is used for vertical guidance and circumferential spacing.

The wheel set locking mechanism includes a lock sleeve 9, a key cover 10, a key 11, an unlocking guide shaft 12, a trapezoidal lock arm 13, a locking spring 14, and an unlocking roller assembly 15; the lock sleeve 9 is processed with a guide hole 9 -2 and the lock key slot 9-3, the shape of the guide hole 9-2 is matched with the locking arm 5 and the driving arm 6 respectively; there is a lock sleeve installation hole 9-1 on the lock sleeve 9, through which the bolt Install the wheel set locking mechanism on the end face of the axle box; the key cover 10 is installed in the key cover installation threaded hole 9-4 on the lock sleeve 9 through bolts; the key 11 is formed with a lock block 11- 1. The shape of the locking block 11-1 matches the shape of the locking groove 5-1 on the locking arm 5, and the locking block 11-1 extends into the key groove 9-3 of the end cover ; The unlocking guide shaft 12 is welded by the unlocking guide shaft 12-1 and the unlocking roller seat 12-2, and the unlocking guide shaft 12-1 is connected with the end cover locking guide hole 8-2-2 Clearance fit, the wheel set locking mechanism is used for unlocking and locking during the gauge change process.

The locking arm 5 and the driving arm 6 of the end face driving mechanism are respectively clearance-fitted with the guide hole 9-2 of the wheel set locking mechanism, and the guide hole 9-2 is used for the shaft of the end face driving mechanism during the pitch change process. To guide the movement, a sealing ring and a snap ring are also installed in the guide hole 9-2, and the sealing ring and the snap ring are used to prevent dirt such as external dust and fine particles from entering the axle box.

There are two lock keys 11, and the two lock keys 11 are respectively located in the holes formed by the end cover key groove 9-3 and the key cover 10, and the two lock keys 11 can slide vertically in the holes; The two lock keys 11 are fixedly connected to both ends of the trapezoidal lock arm 13 respectively, and the lower end of the trapezoidal lock arm 13 is fixedly connected to the unlocking guide shaft 12 .

The shape of the locking block 11-1 is preferably a semicircle.

The shape of the unlocking guide shaft 12-1 matches the shape of the end cover locking guide hole 8-2-2, and the unlocking guide shaft 12-1 is located in the end cover locking guide hole 8-2-2. 2-2 can only slide vertically.

The positioning and centering mechanism of the axle box end cover includes a positioning and centering end cover mounting seat 16, a positioning and centering end cover 17, and a centering roller assembly 18, and four end covers are formed on the positioning and centering mechanism of the axle box end cover U-shaped groove 16-1, the positioning and centering end cover mounting seat 16 is connected with the lock sleeve 9 bolts of the wheel set locking mechanism through the positioning and centering end cover mounting seat mounting hole 16-2, and the positioning and centering On the end cover mounting seat 16 there is a positioning and centering end cover installation threaded hole 16-3 for installation with the positioning and centering end cover 17, and the centering roller assembly 18 is installed on the positioning and centering end cover 17, so The centering roller assembly 18 rolls on the matching ground track gauge driving rail, and the axle box end cover positioning and centering mechanism is used for positioning and centering during the track gauge change process.

The end cover U-shaped groove 16-1 of the positioning and centering end cover mounting seat 16 is respectively clearance-fitted with the locking arm 5 and the driving arm 6, and the locking arm 5 and the driving arm 6 are in the U-shaped groove 16-1 of the end cover. 1 to slide axially along the axle.

The positioning and centering end cover 17 is formed with a centering roller mounting seat 17-1, and the centering roller mounting seat 17-1 is formed with a vertical centering roller shaft hole 17-2, and the positioning and centering The end cap 17 is installed on the positioning and centering end cap mounting base 16 through the positioning and centering end cap installation hole 17 - 3 .

The centering roller assembly 18 includes roller shafts, bearings and rollers, and the centering roller assembly 18 rolls on the matching ground centering rail to ensure the positioning and centering of the axle and the variable gauge bogie during the gauge change process .

A method for changing the track gauge of a variable-gauge bogie driven by an end face realizes the change of the track gauge, and the method mainly includes the following steps:

Step 1: The positioning and centering mechanism of the axle box end cover realizes the lateral positioning and centering of the variable gauge bogie;

Step 2: Support the axle box of the bogie to unload the axle;

Step 3: The wheel set locking mechanism is unlocked, and the end face driving mechanism can slide axially along the axle;

Step 4: Push or pull the end face driving mechanism to slide the wheels along the axle to the corresponding position matching the changed gauge;

Step 5: The wheels are locked by the locking mechanism, and the end face driving mechanism is fixedly connected with the axle box to complete the gauge change.

In step 1, the positioning and centering of the variable-gauge bogie is completed by the cooperation of the positioning and centering mechanism of the axle box end cover and the matching ground-gauge variable auxiliary device.

The centering rail is installed on the mounting bracket on the ballast bed, and is located on both sides of the variable gauge bogie.

The unloading of the axle in step 2 is completed by the support roller set in the auxiliary ground gauge changing auxiliary device, and the support roller set is composed of rollers built in bearings.

The wheel pair locking mechanism described in step 3 is installed on the end face of the axle box, and the unlocking rail makes the lock key of the wheel pair locking mechanism and the locking arm of the end face drive mechanism by pushing or pulling the unlocking guide shaft of the wheel pair locking mechanism. The unlocking rails are installed on the mounting brackets on the side of the axle box and on both sides of the track bed.

The sliding of the wheel in step 4 is caused by the axial sliding of the end drive mechanism along the axle.

The thrust or pulling force of the end-face driving mechanism in step 4 is provided by the variable-gauge driving rail in the supporting ground variable-gauge auxiliary device, and the variable-gauge driving rail applies thrust to the driving arm of the end-face driving mechanism to realize For the conversion from wide rail to narrow rail, the variable gauge driving rail exerts pulling force on the driving arm of the end drive mechanism to realize the conversion from narrow rail to wide rail.

The variable gauge drive rail is installed on the mounting bracket on the side of the axle box and on both sides of the track bed.

In step 5, the wheel pair locking mechanism is in a constant lock state, and the locking force comes from the locking spring of the wheel pair locking mechanism, and the locking spring makes the key of the wheel pair locking mechanism and the locking arm of the end face driving mechanism interact with each other. Engagement, the end drive mechanism and the axle box are relatively locked, so that the wheel base does not change during the running of the vehicle.

Taking the conversion process of the variable gauge bogie between the standard gauge 1435mm and the wide gauge 1520mm as an example, the gauge conversion method is described in detail.

Step 1: The variable-gauge bogie enters the supporting ground-gauge-variable auxiliary device area, and the centering roller assembly 18 in the positioning centering mechanism of the axle box end cover contacts the centering rail 25 and rolls on it to realize the variable-gauge Positioning and centering of the bogie;

Step 2: the support shoe at the bottom of the variable gauge bogie advances onto the support roller set 21, and the support roller set 21 supports the variable gauge bogie to unload the axle;

Step 3: The unlocking roller assembly 15 of the wheel pair locking mechanism rolls in the groove of the unlocking rail 22 outside the support roller group 21, and as the position of the groove of the unlocking rail 22 rises, the unlocking roller assembly 15 is driven to move vertically upward , thereby driving the locking block 11-1 of the wheel pair locking mechanism to disengage with the locking arm 5, and the end face driving mechanism is in a state of being able to slide axially along the axle;

Step 4: The driving roller assembly 7 of the end-face driving mechanism moves along the groove on the variable-gauge driving rail 24, and the variable-gauge driving rail 24 pushes or pulls the end-face driving mechanism to slide axially along the axle; If it is changed to 1520mm, the end face drive mechanism, sliding sleeve, wheel, etc. will slide towards the axle shaft end, otherwise, the two wheels will slide towards each other;

Step 5: The locking spring 14 of the wheel set locking mechanism drives the unlocking guide shaft 12 to move vertically downward, so that the locking block 11-1 and the locking arm 5 are engaged with each other, and the end face driving mechanism is locked relative to the axle box. Tight, to complete the gauge change.

The above descriptions are preferred embodiments of the present invention, and the present invention is not limited thereto.

Claims (6)

1. A variable-gauge bogie end face driving mechanism, characterized in that it comprises a sliding sleeve (3), a driving sliding sleeve (4), a locking arm (5), a driving arm (6), and a driving roller assembly (7) , the driving sliding sleeve (4) is installed on the sliding sleeve (3) through bolts, and the end faces of the driving sliding sleeve (4) respectively have two locking arm mounting threaded holes (4-2), and the driving arm mounting Threaded hole (4-3), the locking arm (5) is installed in the locking arm mounting threaded hole (4-2), and the driving arm (6) is mounted in the driving arm mounting threaded hole (4-3) Middle; the driving roller assembly (7) is installed on the driving arm (6), and the driving roller assembly (7) rolls on the matching ground variable gauge driving rail to realize the change of the wheelbase. 2. A variable-gauge bogie end face drive mechanism according to claim 1, characterized in that the sliding sleeve (3) is mounted on the bearing sliding sleeve of the shaft sleeve (2) through a tapered roller bearing assembly On the integrated mounting base (2-2), the driving sliding sleeve (4) is installed on the sliding sleeve (3) through bolts, and the driving sliding sleeve (4) laterally positions the tapered roller bearing assembly, so The driving sliding sleeve (4) can slide integrally with the sliding sleeve (3), the axle sleeve (2), the wheels, etc. relative to the axle (1) in the axial direction. 3. A variable-gauge bogie end face drive mechanism according to claim 1, characterized in that the two locking arm mounting threaded holes (4-2) on the drive sliding sleeve (4) are located in the horizontal direction , the two drive arm mounting threaded holes (4-3) on the drive sliding sleeve (4) are located in the vertical direction. 4. A kind of variable-gauge bogie end face driving mechanism according to claim 1, characterized in that, the locking arm (5) is installed in the locking arm threaded hole ( 4-2), and carry out threaded connection anti-loosening treatment, preferably, using stop gaskets or bonding anti-loosening methods; the locking arm (5) is processed with a locking groove (5-1), so The shape of the locking groove (5-1) is preferably a semicircular groove, and the groove spacing of the locking groove (5-1) matches the distance of gauge change. 5. A driving mechanism for a variable-gauge bogie end face according to claim 1, characterized in that, the driving arm (6) is threadedly installed in the driving arm installation threaded hole (4- 3), and carry out threaded connection anti-loosening treatment, preferably, using stop gaskets or adhesive anti-loosening methods; the drive arm (6) is processed with a vertical drive roller assembly mounting hole (6-1) , the driving roller assembly (7) is installed in the mounting hole (6-1) of the driving roller assembly. 6. The driving mechanism of a variable gauge bogie end face according to claim 1, characterized in that, the driving roller assembly (7) includes a roller shaft, a bearing and a roller, and the driving roller assembly (7) is assembled Roll on the variable gauge driving rail on the ground, and drive the sliding sleeve (3), driving sliding sleeve (4), locking arm (5), driving The arm (6) slides axially along the axle to realize the change of the track of the wheel set.