CN212529653U

CN212529653U - Braking mechanism for mining narrow-gauge electric locomotive

Info

Publication number: CN212529653U
Application number: CN202020561185.4U
Authority: CN
Inventors: 刘怀东
Original assignee: Huaibei Sunshine Mining Locomotive Manufacturing Co ltd
Current assignee: Huaibei Sunshine Mining Locomotive Manufacturing Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-02-12
Anticipated expiration: 2030-04-14

Abstract

The invention discloses a braking mechanism for a mining narrow-gauge electric locomotive, which comprises a locomotive box body (1), a bearing seat (2), a wheel pair (3), a guide seat (4), a braking part (6) and a guide shaft (5), wherein the bearing seat (2) is assembled at two sides of a wheel shaft of the wheel pair (3), the wheel pair (3) is arranged on the locomotive box body (1) through the bearing seat (2), the guide seat (4) is fixed on the locomotive box body (1), and the guide shaft (5) penetrates through the guide seat (4) and is connected to the braking part (6); the guide shaft (5) can reciprocate in the guide seat (4) under the driving of external force, and drives the braking part (6) to compress and brake or release the brake on the outer side surface of the wheel pair (3). The invention has simple and compact structure and good braking guiding and effect, and overcomes the friction shake and friction noise between the braking part and the wheel caused by the shaking of the locomotive in the prior art.

Description

Braking mechanism for mining narrow-gauge electric locomotive

Technical Field

The invention relates to the technical field of mining electric locomotives, in particular to a braking mechanism for a mining narrow gauge electric locomotive.

Background

In the mine transportation equipment, an electric locomotive is the main equipment for mine transportation in China at present and is mainly used for hauling a mine car group, transporting minerals, equipment and personnel. At present, most of mining electric locomotives adopt a mechanical hand wheel braking mode, namely, a branch force arm, a connecting rod, a transmission rod, an adjusting screw and the like are driven by the rotation of a hand wheel to transmit braking force to a brake block, so that the brake block compresses a friction wheel to achieve a braking effect. This braking mode: 1. the transmission parts are more, the structure is complex and heavy, and corresponding fault points are more; 2. the idle stroke distance is large, the hand wheel needs to rotate 2-3 circles to brake, the braking reaction is slow, the braking distance is long, and the braking efficiency is low; 3. the labor intensity of manual operation is high, the work is hard, and the braking force is too soft, so that the braking torque is small; 4. the mechanical transmission synchronism is poor, the corresponding brake blocks on the two sides need to be adjusted repeatedly, the friction is not uniform, the brake is unbalanced, the brake effect and reliability are poor, and the phenomena of friction shake, friction noise and the like can occur; 5. a braking hand wheel needs to be arranged in the cab, so that the cab space is occupied, and the driving comfort is reduced; 6. can only be used in low-speed running of the locomotive and can not meet the requirement of emergency braking of the locomotive.

Because the restriction in the aspect of electric locomotive inner space structure and electrical control, hydraulic braking uses less in mining electric locomotive, and the hydraulic braking who uses in the current mining electric locomotive has: 1. the structure adopts a manual or pedal mode, so that the operation is labor-consuming, sufficient brake oil is not available, the braking force is small, the braking speed is low, and the structure can only be applied to electric locomotives with small tonnage, such as 2.5T and the like; 2. the hydraulic cylinder is utilized to drive the friction plate to clamp and assemble the brake disc on the wheel shaft of the locomotive, the structure only exists in the prior theoretical technology, the installation space of the brake disc and the hydraulic cylinder is narrow and small due to the limitation of the space and the position in the locomotive in actual use, and the mode is basically in an unrealizable state.

Disclosure of Invention

To the problem that exists among the prior art, this patent discloses a colliery explosion-proof battery for electric locomotive arrestment mechanism, simple structure is compact, and braking direction and effectual have solved and have appeared the phenomenon that the friction of braking piece and wheel is trembled and the friction noise is big because of the locomotive rocks.

In order to achieve the purpose of the invention, the invention adopts the technical scheme that: the utility model provides a mining narrow gauge is arrestment mechanism for electric locomotive, includes locomotive box 1, bearing frame 2, wheel pair 3, guide holder 4, braking piece 6, guiding axle 5, bearing frame 2 assembles in the shaft both sides of wheel pair 3, wheel pair 3 passes through bearing frame 2 dress on locomotive box 1, its characterized in that: the guide seat 4 is fixed on the locomotive case 1, and the guide shaft 5 passes through the guide seat 4 and is connected to the braking part 6. The guide shaft 5 can reciprocate in the guide seat 4 under the drive of external force to drive the braking piece 6 to press and brake or release the brake on the outer side surface of the wheel pair 3.

The braking mechanism for the mining narrow-gauge electric locomotive is further characterized in that: the wheel pair braking device is characterized by further comprising a spring 7, the bearing seats 2 are assembled on two sides of a wheel shaft of the wheel pair 3, the wheel pair 3 is assembled on a locomotive box body 1 through the bearing seats 2, the guide seat 4 is fixed on the locomotive box body 1, the guide shaft 5 penetrates through the guide seat 4 and is connected onto the braking part 6, the spring 7 is assembled on the guide shaft 5 between the guide seat 4 and the braking part 6, and the braking part 6 is pressed on the outer side face of a wheel of the wheel pair 3 to brake through releasing elastic force of the spring 7.

The hydraulic wheel set comprises a wheel set body and is characterized by further comprising a hydraulic cylinder 8, wherein the bearing seats 2 are assembled on two sides of a wheel shaft of the wheel set 3, the wheel set 3 is assembled on the locomotive box body 1 through the bearing seats 2, the guide seat 4 is fixed on the locomotive box body 1, the guide shaft 5 penetrates through the guide seat 4 and is connected onto the braking part 6, the spring 7 is assembled on the guide shaft 5 between the guide seat 4 and the braking part 6, and the hydraulic cylinder 8 is directly connected with the guide shaft 5 or is connected with the guide shaft 5 through a transmission mechanism.

When the hydraulic cylinder is driven by the pressure liquid to stretch the guide shaft to act, the spring on the guide shaft is further compressed, and the braking part is separated from the wheels of the wheel pair to release braking; when the hydraulic pressure in the hydraulic cylinder is unloaded, the compressed spring on the guide shaft releases the elastic force thereof to drive the braking piece to compress and brake the outer side surface of the wheel.

Has the advantages that:

1. the braking part is connected with the guide shaft, so that the structure is simple, the braking guidance performance is good, the friction fit area with the wheel is large, the braking effect is good, and the phenomena of friction flutter and friction noise of the braking part and the wheel caused by the shaking of the locomotive in the prior art are overcome.

2. The mechanism drives the braking part to compress and brake the wheel through the elastic force released by the spring, the braking reaction speed is high, the braking torque is large, the safety is high, and the potential safety hazard caused by unreliable braking is reduced.

3. When the mechanism is parked, the braking piece is driven to be always in a pressing state by the elastic force released by the spring, and the parking braking is safe and high in reliability.

Drawings

Fig. 1 is a schematic structural diagram of a braking mechanism for a mining narrow-gauge electric locomotive.

Fig. 2 is an enlarged schematic view of the braking mechanism of the present invention.

Fig. 3 is a schematic structural diagram (hydraulic cylinder drive) of the braking mechanism for the mining narrow gauge electric locomotive.

Wherein, 1 is a locomotive box body; 2 is a bearing seat; 3 is a wheel pair; 4 is a guide seat; 5 is a guide shaft, 6 is a braking part; 7 is a spring; and 8 is a hydraulic cylinder.

Detailed Description

The technical solution of the present invention is further described by the following embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a braking mechanism for a mining narrow-gauge electric locomotive. The braking mechanism for the mining narrow-gauge electric locomotive comprises a locomotive box body 1, a bearing seat 2, a wheel pair 3, a guide seat 4, a braking part 6 and a guide shaft 5, wherein the bearing seat 2 is assembled on two sides of a wheel shaft of the wheel pair 3, the wheel pair 3 is assembled on the locomotive box body 1 through the bearing seat 2, the guide seat 4 is fixed on the locomotive box body 1, and the guide shaft 5 penetrates through the guide seat 4 and is connected onto the braking part 6.

The guide shaft 5 of the embodiment can reciprocate in the guide seat 4 under the driving of external force to drive the braking member 6 to compress and brake or release the brake on the outer side surface of the wheel pair 3.

The guide shaft of this embodiment can be a single guide shaft and drive the braking piece to compress tightly the wheel lateral surface of the wheel pair, also can be a plurality of side by side guide shafts synchronous motion drive the braking piece to compress tightly the wheel lateral surface of the wheel pair and brake.

The braking mechanism for the mining narrow-gauge electric locomotive in the embodiment may further include a spring 7, the bearing seats 2 are assembled on two sides of the wheel shaft of the wheel pair 3, the wheel pair 3 is assembled on the locomotive case 1 through the bearing seats 2, the guide seat 4 is fixed on the locomotive case 1, the guide shaft 5 passes through the guide seat 4 and is connected to the braking member 6, the spring 7 is assembled on the guide shaft 5 between the guide seat 4 and the braking member 6, and the spring 7 enables the braking member to press the outer side surface of the wheel pair to brake by releasing the elastic force, as shown in fig. 2.

Fig. 3 is a schematic structural diagram (hydraulic cylinder drive) of a braking mechanism for a mining narrow gauge electric locomotive. The braking mechanism for the mining narrow-gauge electric locomotive in the embodiment can further comprise a hydraulic cylinder 8, the bearing seats 2 are assembled on two sides of a wheel shaft of the wheel pair 3, the wheel pair 3 is assembled on the locomotive box body 1 through the bearing seats 2, the guide seat 4 is fixed on the locomotive box body 1, the guide shaft 5 penetrates through the guide seat 4 and is connected to the braking part 6, the spring 7 is assembled on the guide shaft 5 between the guide seat 4 and the braking part 6, and the hydraulic cylinder 8 is connected with the guide shaft 5 through a transmission mechanism.

The hydraulic cylinder driven braking mechanism for the mining narrow gauge electric locomotive of the embodiment has the structure that: when pressure liquid is conveyed into the hydraulic cylinder to extend the piston rod, the piston rod drives the guide shaft to act through the transmission mechanism, the spring on the guide shaft is further compressed, the braking part is separated from the wheels of the wheel pair to release braking, and the wheel pair can walk; when the hydraulic pressure in the hydraulic cylinder is unloaded, the compressed spring releases elastic force to enable the braking part to compress and brake the outer side face of the wheel pair, and meanwhile, the piston rod of the hydraulic cylinder is driven to retract, so that the wheel pair cannot walk.

The transmission mechanism of the embodiment is a connecting rod, a chain sprocket, a rope pulley and the like.

In the embodiment, the piston rod of the hydraulic cylinder can also be directly connected with the guide shaft, when pressure liquid is conveyed into the hydraulic cylinder to enable the piston rod to retract, the piston rod directly drives the guide shaft to act, the spring on the guide shaft is further compressed, the braking part is separated from the wheel of the wheel pair to release braking, and the wheel pair can walk; when the hydraulic pressure in the hydraulic cylinder is unloaded, the compressed spring releases the elastic force to enable the braking part to compress and brake the outer side face of the wheel pair, and the wheel pair cannot walk.

The above-mentioned embodiments are merely illustrative of the present invention, and not restrictive, and it should be understood that various changes and modifications in the spirit and scope of the invention may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a mining narrow gauge is arrestment mechanism for electric locomotive, includes locomotive box (1), bearing frame (2), wheel pair (3), guide holder (4), braking piece (6), guiding axle (5), bearing frame (2) equipment is in the shaft both sides of wheel pair (3), wheel pair (3) are adorned through bearing frame (2) on locomotive box (1), its characterized in that: the guide seat (4) is fixed on the locomotive box body (1), and the guide shaft (5) penetrates through the guide seat (4) and is connected to the braking part (6); the guide shaft (5) can reciprocate in the guide seat (4) under the driving of external force, and drives the braking part (6) to compress and brake or release the brake on the outer side surface of the wheel pair (3).

2. The braking mechanism for the mining narrow-gauge electric locomotive according to claim 1, characterized in that: the wheel pair braking device is characterized by further comprising a spring (7), wherein the spring (7) is assembled on the guide shaft (5) between the guide seat (4) and the braking part (6), and the spring (7) enables the braking part (6) to press the outer side face of the wheel pair (3) to brake by releasing elastic force.

3. The braking mechanism for the mining narrow-gauge electric locomotive according to claim 2, characterized in that: the hydraulic cylinder (8) is directly connected with the guide shaft (5) or connected with the guide shaft (5) through a transmission mechanism.

4. The braking mechanism for the mining narrow-gauge electric locomotive according to claim 3, characterized in that: when the hydraulic cylinder is driven by the pressure liquid to stretch the guide shaft to act, the spring on the guide shaft is further compressed, and the braking part is separated from the wheels of the wheel pair to release braking; when the hydraulic pressure in the hydraulic cylinder is unloaded, the compressed spring on the guide shaft releases the elastic force thereof to drive the braking piece to compress and brake the outer side surface of the wheel.