CN211995594U - Hydraulic braking device for mining narrow-gauge electric locomotive - Google Patents
Hydraulic braking device for mining narrow-gauge electric locomotive Download PDFInfo
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- CN211995594U CN211995594U CN202020561138.XU CN202020561138U CN211995594U CN 211995594 U CN211995594 U CN 211995594U CN 202020561138 U CN202020561138 U CN 202020561138U CN 211995594 U CN211995594 U CN 211995594U
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Abstract
The invention discloses a hydraulic braking device for a mining narrow-gauge electric locomotive, which comprises a locomotive box body, bearing seats, wheel pairs, braking parts and hydraulic cylinders, wherein the bearing seats are assembled on two sides of wheel shafts of the wheel pairs, the wheel pairs are arranged on the locomotive box body through the bearing seats, the braking parts are connected with the hydraulic cylinders, the hydraulic cylinders and the braking parts are connected on the locomotive box body, and the hydraulic cylinders drive the braking parts to compress and brake or release braking on the outer side surfaces of wheels of the wheel pairs through telescopic action. The invention has the advantages of simple and compact structure, stable braking, large braking torque, high speed, short distance, safe operation and high reliability.
Description
Technical Field
The invention relates to the technical field of mining electric locomotives, in particular to a hydraulic braking device 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. In the working process of the electric locomotive, the environment is complex, the running track is narrow, the space is small, so that the overall dimension of the electric locomotive is small, parts such as an electric control part, a traveling driving part, a brake braking part and a sand scattering part which are necessary for the locomotive are required to be arranged in a box body with limited space, the locomotive is crowded, the driving operation is uncomfortable, the maintenance is inconvenient, and the improvement of the brake performance of the electric locomotive are very difficult under the condition of crowding in the existing locomotive.
At present, the braking modes commonly used in mining electric locomotives are roughly divided into three types: mechanical braking, electrical braking, air braking. Although each of the three braking methods has advantages, in practical use, there are many disadvantages.
The mechanical brake is that the hand wheel rotates to drive the force-dividing arm, the connecting rod, the transmission rod, the adjusting screw and the like to transmit the brake force to the brake block, so that the brake block presses the friction wheel to achieve the brake 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. The mode has low reliability in actual use and has great potential safety hazard.
The electric brake is a brake that generates a braking force by electric control of the motor. The mode needs to be connected with a power supply, can only be used as normal braking during the operation of the locomotive, and needs other braking modes to be matched for use during emergency braking, otherwise, the emergency braking effect is poor, and the motor is greatly damaged; when an electric fault occurs in the running of the electric locomotive, the electric brake fails; the parking brake cannot be provided when the vehicle is parked because there is no power supply.
The air brake is that a special motor drives an air compressor to supply air to an air cylinder, and the air cylinder drives a brake block to perform friction brake with wheels. The mode has large noise, high cost, large volume and high assembly requirement; the device is easy to damage in use, needs frequent maintenance and repair, and wastes a large amount of manpower and material resources; the braking is not stable, the braking torque is not controllable, and the brake can not be normally used under ordinary conditions.
Due to the limitation of the electric locomotive in terms of space structure and electrical control, hydraulic brakes are less used in the mining electric locomotive, and the hydraulic brakes used in the existing locomotive are as follows: 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 hydraulic braking device for mining narrow gauge electric locomotive, and pneumatic cylinder drives the braking piece and carries out friction braking to the wheel lateral surface of wheel pair, and simple structure is compact, and braking is steady, and braking torque is big, fast, apart from short, and work safety and reliability are high.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that: the hydraulic braking device for the mining narrow-gauge electric locomotive comprises a locomotive box body 1, a bearing seat 2, a wheel pair 3, a braking part 4 and a hydraulic cylinder 5, wherein the bearing seat 2 is assembled on two sides of a wheel shaft of the wheel pair 3, and the wheel pair 3 is assembled on the locomotive box body 1 through the bearing seat 2, and the hydraulic braking device is characterized in that: the braking part 4 is connected with the hydraulic cylinder 5, the hydraulic cylinder 5 and the braking part 4 are connected to the locomotive box body 1, and the hydraulic cylinder 5 drives the braking part 4 to compress and brake or release braking on the outer side face of the wheel pair 3 through telescopic motion.
The hydraulic braking device for the mining narrow-gauge electric locomotive is further characterized in that: the hydraulic cylinder 5 is of a single-piston-rod cylinder structure or a structure in which a plurality of single-piston-rod cylinders are used in parallel. The braking part 4 is of a single braking part structure, or a braking component structure containing a guide, or a braking component structure containing a first spring (43) and a guide.
The hydraulic braking device for the mining narrow-gauge electric locomotive is further characterized in that:
the hydraulic cylinder 5 is connected with the braking part 4, the braking part 4 is a single braking part, a second spring (51) is arranged in a rodless cavity of the hydraulic cylinder 5, when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, a piston rod of the hydraulic cylinder retracts, the second spring in the rodless cavity is compressed, and the hydraulic cylinder drives the braking part to be separated from the outer side face of the wheel pair to release braking; when the pressure of the liquid in the rod cavity of the hydraulic cylinder is unloaded, the elastic force of the compressed spring II in the rodless cavity is released to extend the piston rod of the hydraulic cylinder, and the hydraulic cylinder drives the braking piece to compress and brake the outer side surface of the wheel pair.
The hydraulic cylinder 5 is connected with the braking part 4, the braking part 4 is a braking component containing a guide, a second spring (51) is arranged in a rodless cavity of the hydraulic cylinder 5, when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, a piston rod of the hydraulic cylinder retracts, the second spring in the rodless cavity is compressed, and the hydraulic cylinder drives the braking part containing the guide to be separated from the outer side face of the wheel pair to release braking; when the pressure of the liquid in the rod cavity of the hydraulic cylinder is unloaded, the elastic force of the compressed spring II in the rodless cavity is released to extend the piston rod of the hydraulic cylinder, and the hydraulic cylinder drives the braking piece containing the guide to compress and brake the outer side surface of the wheel pair.
The hydraulic cylinder 5 is connected with the braking part 4, the braking part 4 is a braking assembly comprising a first spring (43) and a guide part, when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, a piston rod of the hydraulic cylinder retracts, the first spring in the braking part is compressed, and the hydraulic cylinder drives the braking part to be separated from the outer side face of the wheel pair to release braking; when the pressure of the liquid in the rod cavity of 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 extend out.
Has the advantages that:
1. the device realizes braking on the locomotive by driving the braking part to rub the outer side surface of the wheel pair by using the hydraulic cylinder, has simple structure, compact layout, convenient assembly and maintenance and low maintenance cost, can save the existing mechanical hand wheel braking mechanism, and has low operation strength and high driving comfort;
2. the device adopts a hydraulic braking mode, has short braking reaction time, high speed, large braking torque and short braking distance, can realize emergency braking during driving, reduces the accident rate of industrial accidents caused by unreliable braking, has high working reliability, and can meet the safe use requirement of the mining locomotive;
3. the hydraulic cylinder in the device can realize self-balance and synchronous braking of wheel braking, the braking force is average, and the phenomenon of partial braking is avoided;
4. the device can keep constant liquid pressure through a hydraulic cylinder to drive a braking part to always press and brake the outer side surface of a wheel pair, so that parking braking of the locomotive is realized; the braking part can be driven to always press and brake the outer side surface of the wheel pair through the elastic force released by the spring so as to realize parking braking when the locomotive is stopped, and the working safety and the reliability are high.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic braking device for a narrow-gauge electric locomotive for mining in embodiment 1 of the invention.
Fig. 2 is a schematic structural diagram of a hydraulic braking device for a narrow-gauge mining electric locomotive in embodiment 2 of the invention.
FIG. 3 is a schematic view of a hydraulic cylinder connecting brake member structure (single brake member double cylinder brake) according to an embodiment of the invention.
FIG. 4 is a schematic view of a hydraulic cylinder attachment detent configuration (horizontal bar braking with guided brake assembly) according to an embodiment of the present invention.
FIG. 5 is a schematic view of a hydraulic cylinder attachment detent configuration (horizontal bar braking with spring and guided brake assembly) according to an embodiment of the present invention.
Wherein, 1 is a locomotive box body; 2 is a bearing seat; 3 is a wheel pair; 4 is a braking part; 41 is a guide shaft; 42 is a guide seat; 43 is a first spring; 5 is a hydraulic cylinder; and 51 is a second spring.
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 structural schematic diagram of a hydraulic braking device for a mining narrow-gauge electric locomotive. The hydraulic braking device for the mining narrow-gauge electric locomotive in the embodiment 1 comprises a locomotive box body 1, a bearing seat 2, a wheel pair 3, a braking part 4 and a hydraulic cylinder 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 braking part 4 is a single braking part, the braking part 4 is connected to the end part of a piston rod of the hydraulic cylinder 5, and the hydraulic cylinder 5 is fixed on the locomotive box body 1.
The hydraulic cylinder of the embodiment drives the braking part to compress and brake or release the brake on the outer side surface of the wheel pair through the telescopic action of the piston rod.
Fig. 2 is a structural schematic diagram of a hydraulic braking device for a mining narrow gauge electric locomotive. The hydraulic braking device for the mining narrow-gauge electric locomotive in the embodiment 2 comprises a locomotive box body 1, a bearing seat 2, a wheel pair 3, a braking part 4 and a hydraulic cylinder 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 braking part 4 is a braking assembly containing a guide, the braking part 4 is connected to the end part of a piston rod of the hydraulic cylinder 5, and the hydraulic cylinder 5 and the braking part 4 are fixed on the locomotive box body 1.
The hydraulic cylinder of the embodiment drives the braking part to compress and brake or release the brake on the outer side surface of the wheel pair through the telescopic action of the piston rod.
The hydraulic cylinder of the embodiment can be a single-piston-rod hydraulic cylinder connected with the braking member, and the braking member is driven by the telescopic action to compress and brake or release the brake on the outer side surface of the wheel pair, as shown in fig. 4 and 5; or a plurality of single-piston-rod hydraulic cylinders can be used in parallel, and the braking parts are driven by synchronous telescopic motion to compress and brake or release the brake on the outer side surfaces of the wheels of the wheel pair, as shown in fig. 3.
The braking members of the various embodiments may be a single braking member attached to the end of the cylinder rod as shown in figure 3; or a brake assembly with a guide function, and the outer side surfaces of the wheels of the wheel pair are pressed and braked or released through the matching action of the brake assembly and a hydraulic cylinder, as shown in figure 4; or a brake assembly containing a first spring 43 and a guide, and realizes the compression braking or the brake release of the outer side surface of the wheel pair through the cooperation action of the first spring and the hydraulic cylinder, as shown in figure 5.
The pneumatic cylinder of this embodiment connects the stopper and realizes the wheel to the compressing brake or release the braking with flexible action, and its structure is: the braking part 4 is a single braking part and is connected to the end part of a piston rod of the hydraulic cylinder 5, a second spring 51 is arranged in a rodless cavity of the hydraulic cylinder 5, when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, a piston rod of the hydraulic cylinder retracts, the second spring in the rodless cavity is compressed, the hydraulic cylinder drives the braking part to be separated from the outer side surface of the wheel pair to release braking, and the locomotive can run; when the pressure of the liquid in the rod cavity of the hydraulic cylinder is unloaded, the elastic force of the compressed spring II in the rodless cavity is released to enable the piston rod of the hydraulic cylinder to extend out, the hydraulic cylinder drives the braking piece to compress and brake the outer side face of the wheel pair, and the locomotive stops running as shown in figure 3. The second spring 51 of the embodiment can also be arranged on a piston rod outside the hydraulic cylinder body, the piston rod is driven to retract by utilizing pressure liquid in the rod cavity to drive the braking part and the wheel of the wheel pair to release braking, and the compressed spring releases elastic force to drive the piston rod to extend out to drive the braking part to compress and brake the outer side face of the wheel pair; or the second spring 51 can also be arranged in a rod cavity of the hydraulic cylinder, the piston rod is driven to extend out by utilizing the pressure liquid in the rodless cavity to drive the braking piece to compress and brake the outer side surface of the wheel pair, and the compressed spring in the rod cavity releases the elastic force to drive the piston rod to reset, so that the braking piece and the wheel of the wheel pair are driven to release braking; or the hydraulic cylinder is not provided with the second spring, and the piston rod of the hydraulic cylinder is driven to stretch and retract by utilizing different pressure liquid entering and exiting from each cavity in the hydraulic cylinder to drive the braking part to move, so that the braking part can compress and brake the outer side surface of the wheel pair or release the braking. While falling within the scope of the claims.
The pneumatic cylinder of this embodiment connects the stopper and realizes the wheel to the compressing brake or release the braking with flexible action, and its structure is: the braking part 4 is a braking component with guiding function, the braking part 4 can reciprocate in the guide seat 42 through the guide shaft 41, the braking part 4 is connected with a piston rod of the hydraulic cylinder 5, a second spring 51 is arranged in a rodless cavity of the hydraulic cylinder 5, when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, the piston rod of the hydraulic cylinder retracts, the second spring in the rodless cavity is compressed, the hydraulic cylinder drives the braking part with guiding function to be separated from the outer side face of the wheel pair to release braking, and the locomotive can run; when the pressure of the liquid in the rod cavity of the hydraulic cylinder is unloaded, the elastic force of the compressed spring II in the rodless cavity is released to enable the piston rod of the hydraulic cylinder to extend out, the hydraulic cylinder drives the braking part with the guiding function to compress and brake the outer side face of the wheel pair, and the locomotive stops running as shown in figure 4. The second spring 51 of the embodiment can also be arranged on a piston rod outside the hydraulic cylinder body, the piston rod is driven to retract by utilizing pressure liquid in the rod cavity to drive the braking part and the wheel of the wheel pair to release braking, and the compressed spring releases elastic force to drive the piston rod to extend out to drive the braking part to compress and brake the outer side face of the wheel pair; or the second spring 51 can also be arranged in a rod cavity of the hydraulic cylinder, the piston rod is driven to extend out by utilizing the pressure liquid in the rodless cavity to drive the braking piece to compress and brake the outer side surface of the wheel pair, and the compressed spring in the rod cavity releases the elastic force to drive the piston rod to reset, so that the braking piece and the wheel of the wheel pair are driven to release braking; or the hydraulic cylinder is not provided with the second spring, and the piston rod of the hydraulic cylinder is driven to stretch and retract by utilizing different pressure liquid entering and exiting from each cavity in the hydraulic cylinder to drive the braking part to move, so that the braking part can be pressed and braked or released by the wheel to the outer side surface of the wheel. While falling within the scope of the claims.
Or the hydraulic cylinder of each embodiment is connected with the braking part to realize the compression braking or the brake release of the wheels by the wheels through the telescopic action, and the structure is as follows: the braking part 4 is a braking assembly comprising a first spring 43 and a guide, the first spring 43 is arranged on a guide shaft 41, the braking part can reciprocate in a guide seat 42 through the guide shaft 41, the braking part 4 is connected with a piston rod of a hydraulic cylinder 5, when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, the piston rod of the hydraulic cylinder retracts, the first spring in the braking part is compressed, the hydraulic cylinder drives the braking part to be separated from wheels of the wheel pair to release braking, and the locomotive can run; when the pressure of the liquid in the rod cavity of the hydraulic cylinder is unloaded, the compressed spring in the braking part releases the elastic force to enable the braking part to compress and brake the outer side face of the wheel pair, the locomotive can run, and meanwhile, the piston rod of the hydraulic cylinder is driven to extend out for the next cycle action, as shown in fig. 5. The hydraulic cylinder of the embodiment can also drive the piston rod to extend out through the pressure liquid to drive the braking part to press and brake the outer side face of the wheel pair, and the compressed spring in the braking part drives the braking part and the piston rod to reset to release braking. While falling within the scope of the claims.
The parking braking mode of each embodiment can keep constant liquid pressure through a hydraulic cylinder to drive a braking part to press and brake the outer side surface of the wheel pair all the time, so that the parking braking of the locomotive is realized; the braking part can be driven to always press and brake the outer side face of the wheel pair through the elastic force released by the spring, parking braking when the locomotive is parked is achieved, and the mechanical braking mode adopting the spring release is high in safety and reliability.
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 (6)
1. The utility model provides a mining narrow gauge is hydraulic braking device for electric locomotive, includes locomotive box (1), bearing frame (2), wheel pair (3), braking piece (4), pneumatic cylinder (5), bearing frame (2) are assembled in the both sides of wheel pair (3) shaft, wheel pair (3) are passed through bearing frame (2) dress is in on locomotive box (1), its characterized in that: the braking part (4) is connected with the hydraulic cylinder (5), the hydraulic cylinder (5) and the braking part (4) are connected to the locomotive box body (1), and the hydraulic cylinder (5) drives the braking part (4) to compress the outer side face of the wheel pair (3) for braking or brake releasing through telescopic motion.
2. The hydraulic brake device for the mining narrow-gauge electric locomotive according to claim 1, characterized in that: the hydraulic cylinder (5) is of a single-piston-rod cylinder structure or a structure with a plurality of single-piston-rod cylinders used in parallel.
3. The hydraulic brake device for the mining narrow-gauge electric locomotive according to claim 1, characterized in that: the braking part (4) is of a single braking part structure, or a braking component structure containing a guide, or a braking component structure containing a first spring (43) and a guide.
4. The hydraulic brake device for the mining narrow-gauge electric locomotive according to one of claims 1 to 3, characterized in that: the hydraulic cylinder (5) is connected with the braking part (4), the braking part (4) is a single braking part, a second spring (51) is arranged in a rodless cavity of the hydraulic cylinder (5), when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, a piston rod of the hydraulic cylinder retracts, the second spring in the rodless cavity is compressed, and the hydraulic cylinder drives the braking part to be separated from the outer side face of the wheel pair to release braking; when the pressure of the liquid in the rod cavity of the hydraulic cylinder is unloaded, the elastic force of the compressed spring II in the rodless cavity is released to extend the piston rod of the hydraulic cylinder, and the hydraulic cylinder drives the braking piece to compress and brake the outer side surface of the wheel pair.
5. The hydraulic brake device for the mining narrow-gauge electric locomotive according to one of claims 1 to 3, characterized in that: the hydraulic cylinder (5) is connected with the braking part (4), the braking part (4) is a braking assembly containing a guide, a second spring (51) is arranged in a rodless cavity of the hydraulic cylinder (5), when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, a piston rod of the hydraulic cylinder retracts, the second spring in the rodless cavity is compressed, and the hydraulic cylinder drives the braking part containing the guide to be separated from the outer side face of the wheel pair to release braking; when the pressure of the liquid in the rod cavity of the hydraulic cylinder is unloaded, the elastic force of the compressed spring II in the rodless cavity is released to extend the piston rod of the hydraulic cylinder, and the hydraulic cylinder drives the braking piece containing the guide to compress and brake the outer side surface of the wheel pair.
6. The hydraulic brake device for the mining narrow-gauge electric locomotive according to one of claims 1 to 3, characterized in that: the hydraulic cylinder (5) is connected with the braking part (4), the braking part (4) is a braking assembly comprising a first spring (43) and a guide part, when pressure liquid is conveyed into a rod cavity of the hydraulic cylinder, a piston rod of the hydraulic cylinder retracts, the first spring in the braking part is compressed, and the hydraulic cylinder drives the braking part to be separated from the outer side face of the wheel pair to release braking; when the pressure of the liquid in the rod cavity of the hydraulic cylinder is unloaded, the compressed spring releases elastic force to enable the braking part to compress and brake the outer side surface of the wheel pair, and meanwhile, the piston rod of the hydraulic cylinder is driven to extend out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561138.XU CN211995594U (en) | 2020-04-14 | 2020-04-14 | Hydraulic braking device for mining narrow-gauge electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561138.XU CN211995594U (en) | 2020-04-14 | 2020-04-14 | Hydraulic braking device for mining narrow-gauge electric locomotive |
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| CN211995594U true CN211995594U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020561138.XU Active CN211995594U (en) | 2020-04-14 | 2020-04-14 | Hydraulic braking device for mining narrow-gauge electric locomotive |
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| CN (1) | CN211995594U (en) |
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- 2020-04-14 CN CN202020561138.XU patent/CN211995594U/en active Active
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