CN117799642A - Electric traction device of rail transport vehicle - Google Patents

Abstract

The invention relates to the technical field of tunnel engineering equipment, in particular to an electric traction device of a rail transport vehicle, which comprises a friction wheel electric driving device and a braking unit, wherein the friction wheel electric driving device and the braking unit are arranged in a split manner; the friction wheel electric drive device includes: the left driving frame and the right driving frame are respectively hinged to two sides of the main frame, and motor speed reducers are arranged on the left driving frame and the right driving frame; the friction wheel is connected with an output shaft of the motor speed reducer; the pre-tightening oil cylinder is arranged on the main frame, and two ends of the pre-tightening oil cylinder are respectively hinged with the left driving frame and the right driving frame; the guide wheel is arranged at the bottom side of the main frame; and the bearing wheels are arranged on two sides of the main frame. According to the invention, the friction wheel is driven by the motor reducer, and the rail transport vehicle is driven by friction reaction force, so that the energy utilization rate is higher; meanwhile, a large number of hydraulic pipelines are avoided; the modular design can be realized, and transportation tasks under different conditions can be completed through flexible combination; is convenient for maintenance.

Description

An electric traction device for rail transport vehicles

Technical field

The invention relates to the technical field of tunnel engineering equipment, and in particular to an electric traction device for a rail transport vehicle.

Background technique

Inclined tunnel rail transport vehicle is a transportation tool that uses rails as its driving route. It is mainly used for rail material transportation in railway tunnel engineering, mine tunnel engineering and other fields. The characteristic of inclined lane rail transport vehicles is that they have a large load capacity and can carry a large amount of goods to complete the transportation task in inclined lanes, thereby improving the efficiency of material transportation. In addition, the transporter operates smoothly, is safe and reliable, and has low manufacturing cost, making it an important tool for material transportation in inclined lanes.

However, existing inclined lane rail transport vehicles also have certain limitations. The driving device of inclined lane rail transport vehicles usually adopts hydraulic transmission method. Although this method can provide stable power output, the energy utilization rate is relatively low. In addition, due to the complex and precise structure of the hydraulic system, its use and maintenance costs are relatively high.

In order to overcome the shortcomings of existing inclined lane rail transport vehicles, it is necessary to provide an electric traction device for rail transport vehicles.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the existing technology and propose the design of an electric traction device for rail transport vehicles that has higher energy utilization and is easy to use and maintain.

The technical solutions adopted by the present invention to solve the technical problems are:

An electric traction device for a rail transport vehicle comprises a friction wheel electric drive device and a brake unit, wherein the friction wheel electric drive device and the brake unit are separately arranged; wherein:

The friction wheel electric drive device includes:

The main frame has a left drive frame and a right drive frame respectively hinged on both sides of the main frame, and motor reducers are installed on the left drive frame and the right drive frame;

Friction wheel, connected to the output shaft of the motor reducer;

The preload cylinder is installed on the main frame. Both ends of the preload cylinder are hinged with the left and right drive frames respectively. The left drive frame and the right drive frame are driven by the preload cylinder to adjust their positions, thereby compressing the left and right friction wheels. On the drive track;

The guide wheel is installed on the bottom side of the main frame and plays a guiding role;

The load-bearing wheels are installed on both sides of the main frame and play a load-bearing role.

Further, the friction wheel electric driving device and the braking unit are respectively articulated with the towed vehicle.

Further, the braking unit includes: a brake frame, a brake cylinder, a brake spring and a brake assembly; the brake spring is sleeved on the brake cylinder; a set of brake cylinders is provided at each end of the brake cylinder. brake components; among them,

Each set of brake components includes:

One end of the brake arm is connected to the end of the brake cylinder through a pin, the middle part is connected to the connecting rod through a pin, and the other end is connected to the brake shaft through a pin. The connecting rod is connected to the brake assembly through the pin. The brake frame is connected between them; among them, the brake arm, brake shaft, and connecting rod jointly form a lever mechanism;

The brake block is arranged on the brake shaft and is used to press on the intermediate drive track to form friction braking force.

Further, the brake arm is arranged at an inclination, such as an inclination angle of 40°, 45°, 48°, etc.

Furthermore, the brake frame is detachably fixedly mounted on the towed vehicle via a pin fixing member, which facilitates disassembly, replacement and maintenance.

Further, the track includes load-bearing rails on both sides and a middle drive rail. The load-bearing wheels run on the load-bearing rails on both sides, and the guide wheels run on the middle drive rail.

Furthermore, the intermediate driving rail is an I-type steel rail, and two brake blocks are fitted on both sides of the web of the I-type intermediate driving rail.

Furthermore, the guide wheel is a beveled wheel, which is matched to run on the intermediate drive rail.

Further, a traction seat is detachably fixed on the main frame, and is connected to the towed vehicle through the traction seat.

Further, the traction base coincides with the central axis of the main frame.

Technical effects of the present invention:

Compared with the existing technology, the electric traction device of the rail transport vehicle of the present invention uses a motor reducer to drive the friction wheel, thereby driving the rail transport vehicle through friction reaction force. Compared with the traditional hydraulic transmission method, it has higher efficiency. Energy utilization rate is reduced, thereby reducing energy consumption; at the same time, a large number of hydraulic pipelines are avoided, making the overall structure simple, reliability improved, and more convenient to use; in addition, the present invention adopts a separately arranged friction wheel electric drive device and brake The unit can realize modular design, and through flexible combination, it can complete transportation tasks under different slopes and different load conditions, and can be more conveniently maintained and maintained, reducing use and maintenance costs.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the friction wheel electric drive device of the present invention;

Figure 2 is a schematic diagram of the matching structure of the friction wheel electric drive device and the track according to the present invention;

FIG3 is a bottom view of the structure of the friction wheel electric drive device of the present invention;

Figure 4 is a schematic diagram of the braking structure of the braking unit of the present invention;

Figure 5 is a front view of the braking structure of the braking unit of the present invention;

Figure 6 is a schematic diagram of the overall structure of another embodiment of the friction wheel electric drive device of the present invention.

In the picture, 1. Carrying wheel; 2. Main frame; 3. Guide wheel; 4. Friction wheel; 5. Left drive frame; 6. Motor reducer; 7. Preload cylinder; 8. Right drive frame; 9. Traction Seat; 10. Brake arm; 11. Connecting rod; 12. Brake frame; 13. Brake shaft; 14. Pin; 15. Brake spring; 16. Brake block; 17. Load rails on both sides; 18. Intermediate drive rail; 19. Brake cylinder.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

Example 1:

As shown in Figure 1, this embodiment relates to an electric traction device for a rail transport vehicle, including a friction wheel electric drive device and a braking unit. The friction wheel electric drive device and the braking unit are arranged separately and are respectively connected to the Towing vehicle articulated.

As shown in Figure 1, the friction wheel electric drive device includes a bearing wheel 1, a main frame 2, a guide wheel 3, a friction wheel 4, a left drive frame 5, a motor reducer 6, a preload cylinder 7, a right drive frame 8 and Traction seat 9.

Specifically, as shown in Fig. 1, Fig. 2 and Fig. 3, the left and right sides of the main frame 2 are respectively hinged with a left drive frame 5 and a right drive frame 8, and the left and right drive frames 5 and 8 are both fixed with a motor reducer 6 by bolts, and the friction wheel 4 is connected to the output shaft of the motor reducer 6 and driven by the motor reducer 6; the left and right drive frames 5 and 8 are respectively hingedly connected with the two ends of the preload cylinder 7, and the preload cylinder 7 is installed on the main frame 2, and the left and right drive frames 5 and 8 are driven by the preload cylinder 7 to adjust the position, so as to press the left and right friction wheels 4 on the drive track. The traction seat 9 is detachably fixed on the main frame 2 by a threaded fixing, and coincides with the central axis of the main frame 2. Four guide wheels 3 are installed on the bottom side of the main frame 2, which act on the intermediate drive track 18 to guide. Four bearing wheels 1 are also installed on the left and right sides of the main frame 2, which act on the bearing rails 17 on both sides to bear. As one feasible implementation, as shown in Fig. 1, the load-bearing wheel 1 is installed on the side of the main frame 2. As another feasible implementation, as shown in Fig. 6, the load-bearing wheel 1 is installed on the bottom of the main frame 2. The installation method of the load-bearing wheel 1 of the present invention is not limited to the above two methods.

The braking unit includes a brake frame 12, a brake cylinder 19, a brake spring 15 and a brake assembly.

Specifically, as shown in Figures 4 and 5, the brake spring 15 is sleeved on the brake cylinder 19; a set of brake assemblies are provided at both ends of the brake cylinder 19, and each set of brake assemblies includes a brake assembly. Boom 10, connecting rod 11, brake shaft 13 and brake block 16; one end of the brake arm 10 is connected to the end of the brake cylinder 19 through a pin 14, and the middle part is connected to the connecting rod 11 through a pin 14. The other end is connected to the brake shaft 13 through the pin 14, and the connecting rod 11 is connected to the brake frame 12 between the two brake components through the pin 14; the brake block 16 is arranged on the brake shaft 13 superior. The brake arm 10, the brake shaft 13 and the connecting rod 11 together form a lever mechanism. Through the amplification effect of the lever mechanism, the elastic force provided by the brake spring 15 is pressed against the intermediate drive track 18 through the brake block 16 to form a friction brake. The brake frame 12 is detachably and fixedly installed on the towed vehicle through a pin fixing member, which is convenient for disassembly, replacement and maintenance. The brake arm 10 is arranged at an angle of 45°, which reduces the height dimension and facilitates installation at the bottom of the towed vehicle.

As shown in Figure 2, the track includes load-bearing rails 17 on both sides and a middle drive rail 18. The load-bearing wheel 1 runs on the load-bearing rails 17 on both sides, and the guide wheel 3 runs on the middle drive rail. On track 18. As a preferred solution, the intermediate drive rail 18 is an I-shaped rail, and the two brake blocks 16 are matched on both sides of the I-shaped intermediate drive rail web. The guide wheel 3 is a beveled wheel, which cooperates to travel on the intermediate drive rail. On track 18.

working principle:

The friction wheel electric drive device of the present invention uses a motor reducer 6 to drive the friction wheel 4, thereby driving the inclined lane rail transport vehicle through the friction reaction force. Compared with the traditional hydraulic transmission method, it has a higher energy utilization rate, thereby reducing energy consumption. At the same time, the present invention avoids a large number of hydraulic pipelines, making the overall structure simple, improving reliability, and realizing modular design. Through flexible combination, it can complete transportation tasks under different slopes and different load conditions. It can also be more convenient to maintain and service, reducing the cost of use.

The electric traction device of the rail transport vehicle of the present invention is provided with a braking unit. When the rail transport vehicle needs to stop, the braking unit can quickly clamp and brake the intermediate drive rail web, thereby ensuring the safety of the vehicle. Moreover, through the center The guide wheel 3, the brake block 16 and the friction wheel 4 cooperate to prevent derailment and make the safety higher.

Since the friction wheel electric drive device and braking unit have high interchangeability and consistency, they can be used and maintained more conveniently, improving production efficiency and maintenance convenience.

The electric traction device of the rail transport vehicle of the present invention has the beneficial effects of high efficiency, energy saving, low maintenance cost, high safety, controllable driving force, strong adaptability and easy maintenance, and can be widely used in rails in the fields of railway tunnel engineering, mine tunnel engineering and other fields. Material transportation.

The above-mentioned specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the above-mentioned specific embodiments, any appropriate changes made to them by those of ordinary skill in the technical field that are consistent with the claims of the present invention. or modifications shall fall within the scope of patent protection of the present invention.

Claims (10)

1. An electric traction device for a rail transport vehicle, characterized in that: it includes an electric drive device of a friction wheel (4) and a braking unit, and the electric drive device and the braking unit of the friction wheel (4) are arranged separately; wherein, The electric driving device of the friction wheel (4) includes: The main frame (2) has a left drive frame (5) and a right drive frame (8) respectively hinged on both sides of the main frame (2). The left drive frame (5) and the right drive frame (8) are installed with Motor reducer(6); The friction wheel (4) is connected to the output shaft of the motor reducer (6); The preload cylinder (7) is installed on the main frame (2). The two ends of the preload cylinder (7) are hinged with the left drive frame (5) and the right drive frame (8) respectively; The guide wheel (3) is installed on the bottom side of the main frame (2); The load-bearing wheels (1) are mounted on both sides of the main frame (2). 2. The electric traction device for a rail transport vehicle according to claim 1, characterized in that the electric drive device and the brake unit of the friction wheel (4) are respectively articulatedly connected to the towed vehicle. 3. The electric traction device for a rail transport vehicle according to claim 1 is characterized in that: the brake unit comprises: a brake frame (12), a brake cylinder (19), a brake spring (15) and a brake assembly; the brake spring (15) is sleeved on the brake cylinder (19); a set of brake assemblies is respectively arranged at both ends of the brake cylinder (19); wherein, Each set of brake components includes: The brake arm (10) has one end connected to the end of the brake cylinder (19) through a pin, a middle part connected to the connecting rod (11) through a pin, and the other end connected to the brake shaft (13) through a pin. The connecting rod (11) is connected to the brake frame (12) located between the two brake components through a pin; The brake block (16) is arranged on the brake shaft (13). 4. The electric traction device for rail transport vehicles according to claim 3, characterized in that the brake arm (10) is arranged obliquely. 5. The electric traction device for a rail transport vehicle according to claim 3, characterized in that the brake frame (12) is detachably fixedly mounted on the towed vehicle via a pin fixing member. 6. The electric traction device of a rail transport vehicle according to any one of claims 1 to 5, characterized in that: the track includes load-bearing rails (17) on both sides and a middle drive rail (18), and the load-bearing wheel (1 ) runs on the load-bearing rails (17) on both sides, and the guide wheel (3) matches on the middle drive rail (18). 7. The electric traction device for rail transport vehicles according to claim 6, characterized in that the intermediate drive rail (18) is an I-shaped rail. 8. The electric traction device for rail transport vehicles according to claim 1, characterized in that the guide wheel (3) is a beveled wheel. 9. The electric traction device for rail transport vehicles according to any one of claims 1-5 and 8, characterized in that: a traction seat (9) is detachably fixed on the main frame (2). 10. The electric traction device for rail transport vehicles according to claim 9, characterized in that the traction seat (9) coincides with the central axis of the main frame (2).