CN114407943B - Track mine car frame with emergency braking function - Google Patents
Track mine car frame with emergency braking function Download PDFInfo
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- CN114407943B CN114407943B CN202210165450.0A CN202210165450A CN114407943B CN 114407943 B CN114407943 B CN 114407943B CN 202210165450 A CN202210165450 A CN 202210165450A CN 114407943 B CN114407943 B CN 114407943B
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- waist
- braking
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- frame
- locking
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- 238000013016 damping Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 10
- 230000003137 locomotive effect Effects 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D11/00—Mine cars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F1/00—Underframes
- B61F1/08—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/04—Bumpers or like collision guards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Handcart (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to the technical field of rail transit, and particularly discloses a rail mine car frame with an emergency braking function, which comprises a carrier, a chassis frame, a braking component and a walking component, wherein the walking component comprises wheel shafts which are rotatably connected to the left end and the right end of the chassis frame through bearings, and the front end and the rear end of the wheel shafts, which extend out of the chassis frame, are fixedly connected with mine car wheels; the braking assembly comprises waist-shaped braking rings, one end of the inner wall of each waist-shaped braking ring is arranged smoothly, a damping braking block is arranged at the other end of each waist-shaped braking ring, a connecting rod is arranged between the two waist-shaped braking rings, one waist-shaped braking ring is connected with a pushing rod extending out of the chassis frame, the end part of each pushing rod is connected with an anti-collision beam, and a plurality of springs are connected between each anti-collision beam and the chassis frame; according to the invention, through the novel structural design of the arranged brake assembly, the problem that a plurality of mine cars collide when in emergency braking due to the fact that the existing track mine car has no braking function is effectively solved, and the safety of the track mine car is greatly improved.
Description
Technical Field
The invention relates to the technical field of rail transit, and particularly discloses a rail mine car frame with an emergency braking function.
Background
The track mine car is a track locomotive for conveying minerals, and is generally formed by connecting an internal combustion locomotive and a plurality of sections of mine cars through connectors, wherein the internal combustion locomotive is used as a power component for pulling the mine cars behind to move. The traditional mine car consists of a frame at the bottom and a carriage arranged on the frame, has no braking function, and is easy to collide with each other due to inconsistent speed of the front mine car and the rear mine car when the mine car ascends and descends or parks.
At present, in order to effectively solve the technical problems of the rail mine cars, the rigid connectors between two adjacent mine cars are changed into connectors with buffer functions, so that a certain buffer space is reserved between the adjacent mine cars, and the collision between the mine cars is greatly avoided. However, the improvement of the mode still cannot avoid the accident that the railway mine car is suddenly braked by the internal combustion locomotive in emergency, and the rear mine car collides with the front car by self inertia, especially when the fully loaded railway mine car is in a downhill road section form, the accident of collision is extremely easy to be caused after the front internal combustion locomotive is suddenly braked, and the safety hidden trouble is extremely high. Therefore, the application provides a track mine car frame with an emergency braking function to solve the problem that the existing track mine car is easy to cause collision during emergency braking.
Disclosure of Invention
The invention aims to solve the problem that the existing track mine car is easy to cause collision during emergency braking, and designs a track mine car frame with an emergency braking function so as to solve the technical problem.
The invention is realized by the following technical scheme:
the rail mine car frame with the emergency braking function comprises a cargo carrying frame and a chassis frame, wherein the cargo carrying frame is used for connecting two adjacent frames and installing a carriage, the chassis frame is used for installing a braking assembly and a walking assembly, and the cargo carrying frame is fixedly arranged above the chassis frame;
the walking assembly comprises wheel shafts which are rotatably connected to the left end and the right end of the chassis frame through bearings, and mine car wheels are fixedly connected to the front end and the rear end of the wheel shafts extending out of the chassis frame;
the braking assembly comprises waist-shaped braking rings which are horizontally arranged and sleeved in a wheel shaft, one end of the inner wall of each waist-shaped braking ring is smoothly arranged, damping braking blocks are arranged at the other end of each waist-shaped braking ring, connecting rods are arranged between the two waist-shaped braking rings, one waist-shaped braking ring is connected with a pushing rod extending out of a chassis frame, the end part of each pushing rod is connected with an anti-collision beam, and a plurality of springs are connected between each anti-collision beam and the chassis frame.
When the track mine car frame disclosed by the invention is used for emergency braking of an internal combustion locomotive, a mine car connected at the rear collides with the front car due to the self inertia effect, at the moment, the whole braking component is kept motionless relative to the chassis frame by abutting the anti-collision beam with the front car, the chassis frame continues to move forwards to compress the spring, and then the wheel axle moves from the smooth end of the waist-shaped braking ring to be contacted with the damping brake block, so that the rotation resistance of the wheel axle is increased instantaneously, and the braking effect on the frame is achieved.
As a further arrangement of the scheme, the two wheel shafts are provided with locking gears, the outer ends of the anti-collision beams are connected with raised arc-shaped steel plates, the arc-shaped steel plates are connected with locking rods arranged above the chassis frame, the locking rods are connected with locking blocks aligned with the corresponding locking gears, and locking teeth are arranged on the side faces of the locking blocks facing the locking gears; the arc-shaped steel plate connected to the outer end of the anti-collision beam can be inwards concavely bent when receiving larger impact force, and then the locking rod is pushed to move backwards, so that the locking block is driven to move towards the direction of the locking gear, and the wheel shaft can be stopped in a three-dimensional mode through the locking teeth on the locking block and the locking gear, so that the whole track mine car frame has a better emergency braking function.
As a further arrangement of the scheme, a guide sleeve which plays a role in guiding the locking rod is fixedly arranged on the chassis frame; the guide sleeve can prevent the locking rod from shifting during emergency braking, and ensures the stability of the locking block during braking of the wheel shaft.
As a further arrangement of the scheme, a clamping block movable groove is formed in the chassis frame at the position of the clamping gear, and the clamping block is arranged in the clamping block movable groove and the upper end of the clamping block is connected with the locking rod.
As a further arrangement of the scheme, two locking gears are symmetrically arranged on each wheel shaft front and back, and two locking rods are also symmetrically connected on the arc-shaped steel plate front and back; two clamping gears and two locking rods are arranged on each wheel shaft, so that balance of the walking assembly during emergency braking can be guaranteed.
As a further arrangement of the scheme, a rubber layer is arranged on the outer side surface of the arc-shaped steel plate; the design of the rubber layer can reduce the damage to the frame when the collision occurs.
As a further arrangement of the scheme, the left end and the right end of the chassis frame are provided with wheel shaft grooves for installing wheel shafts, bearings are fixedly arranged at the front end and the rear end of the wheel shaft grooves, the chassis frame is provided with strip grooves for installing connecting rods and pushing rods, and the intersection of the strip grooves and the wheel shaft grooves is provided with brake ring movable grooves for installing waist-shaped brake rings; the wheel axle groove, the strip-shaped groove and the like are designed, so that the brake assembly and the traveling assembly are built in, and the structural design of the chassis frame is optimized.
As a further arrangement of the scheme, the damping brake pad in the waist-shaped brake ring is arranged in a semicircular shape, and a smooth copper layer is plated on the inner wall of the waist-shaped brake ring positioned at the opposite side of the damping brake pad; the damping brake pad is arranged in a semicircular shape, so that the contact area between the damping brake pad and the wheel shaft can be increased to the greatest extent, the braking effect is improved, meanwhile, the design of the smooth copper layer can reduce the friction force between the wheel shaft and the inner wall of the waist-shaped brake ring during normal rotation of the wheel shaft, and the friction loss can be reduced.
As a further arrangement of the above scheme, a wear-resistant layer is arranged on the wheel axle in the waist-shaped braking ring; the wear-resistant layer can reduce the abrasion to the wheel shaft during frequent braking and prolong the service life of the walking assembly.
The beneficial effects are that:
1) According to the track mine car frame disclosed by the invention, when the mine car is braked emergently, the wheel shaft is enabled to move to the damping brake block in the waist-shaped brake ring through the brake component arranged on the chassis frame, so that the motion damping of the wheel shaft is increased instantaneously, a good braking effect is achieved, and the wheel shaft is enabled to be positioned at the smooth end of the waist-shaped brake ring under the action of the spring during normal operation, and the normal traction process of the track mine car frame is not influenced; the whole brake assembly is novel in structural design, the problem that a plurality of sections of mine cars collide when the existing track mine car is braked emergently due to the fact that the mine car does not have a brake function is effectively solved, and the safety of the track mine car is greatly improved.
2) The braking component disclosed by the invention is further provided with a set of locking device, the locking rod is driven to move backwards through the concave of the arc-shaped steel plate under an emergency condition, and the wheel shaft is directly locked through the locking action between the locking block on the locking rod and the locking gear on the wheel shaft, so that the emergency braking effect of the whole track mine car frame is further improved, the occurrence of a crash situation caused by emergency braking of the mine car in the high-speed traction process can be effectively avoided, the use effect under the emergency condition is excellent, and the safety of the track mine car is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a carrier in accordance with the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of a chassis frame, an anti-collision beam, a brake ring and the like in the invention;
FIG. 4 is a schematic perspective view of the chassis frame, wheel axles, wheels of the mine car, etc. in the present invention;
FIG. 5 is a schematic view of a perspective structure of an anti-collision beam, a brake ring, an arc-shaped steel plate and the like in the invention;
FIG. 6 is a schematic plan view of the wheel axle of the present invention mated with a brake ring;
fig. 7 is a schematic perspective view of a wheel shaft, a mine wheel, a seized gear and the like in the present invention.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail with reference to fig. 1 to 7, and examples.
Example 1
Wherein, a traction frame 202 is fixedly connected to the right end of the cargo rack 2, a buffer connector (not shown in the figure) can be connected with the traction frame 202, and then the connection with the adjacent vehicle section is realized. Meanwhile, a mounting groove 203 and a connecting mounting hole 204 are formed in the upper surface of the loading rack 2, a box body (not shown in the figure) for loading goods can be placed in the mounting groove 203, and then stable mounting between the box body and the loading rack 2 is achieved through the action of the connecting bolt and the connecting mounting hole 204.
Referring to fig. 4 and 7, in this embodiment, longitudinal wheel axle grooves 101 are formed at left and right ends of an upper surface of a chassis frame 1, bearings 102 are mounted at front and rear ends of each wheel axle groove 101, a wheel axle 103 is rotatably disposed between the two bearings 102, and the wheels 3 and the wheel axles 103 are fixedly connected at two ends extending out of the chassis frame 1, that is, the wheels 103 and the wheels 3 are synchronously rotated. A transverse bar-shaped groove 104 is arranged in the middle of the upper surface of the chassis frame 1, and a brake ring movable groove 105 is arranged at the intersection position of the bar-shaped groove 104 and each wheel axle groove 101.
Referring to fig. 5 and 6, a brake ring 4 horizontally disposed in a waist shape is disposed in each brake ring moving groove 105, and a wheel shaft 103 is disposed through the corresponding brake ring 4. The right end of the brake ring 4 is provided with a damping brake pad 401, in order to increase the contact area between the damping brake pad 401 and the wheel axle 103, the damping brake pad 401 may be arranged in a semi-circular shape, and in order to reduce the abrasion to the wheel axle 103 during frequent braking, a wear-resistant layer is further arranged on the part of the wheel axle 103 located in the brake ring 4.
When the brake ring 4 moves leftwards in the brake ring movable groove 105 so that the damping brake pad 401 contacts the wheel shaft 103, a braking effect on the wheel shaft 103 can be achieved. Meanwhile, the inner wall of the left end of the brake ring 4 is set to be a smooth surface, and a copper layer can be plated on the inner wall of the left end of the brake ring 4 to increase the lubricity and the wear resistance of the brake ring, so that the friction force and the wear caused by the contact between the wheel shaft 103 and the inner wall of the left end of the brake ring movable groove 105 during normal rotation are greatly reduced.
A connecting rod 5 is connected between the two brake rings 4 in a transverse manner, the connecting rod 5 is arranged in the strip-shaped groove 104 and is matched with the strip-shaped groove, meanwhile, a push rod 6 extending out of the chassis frame 1 along the strip-shaped groove 104 is welded on the brake ring 4 on the right side, an anti-collision beam 7 is connected to the outer end part of the push rod 6, and a plurality of springs 8 are connected between the longitudinally arranged anti-collision beam 7 and the chassis frame 1. In addition, in order to reduce the influence on the collision beam 7 when the collision beam collides with the front vehicle, a rubber layer is coated on the collision beam 7.
When the rail car frame disclosed in the embodiment encounters an emergency, after the internal combustion locomotive brakes, as the rear mine car has certain inertia to collide with the front car, the anti-collision beam 7 is contacted with the tail of the front car, at the moment, the push rod 6, the brake ring 4 and the connecting rod 5 which are integrally connected with the anti-collision beam 7 are kept motionless, the chassis frame 1 can overcome the action of the spring 8 to continuously move forwards, at the moment, relative movement occurs between the brake ring 4 and the wheel shaft 103, namely the wheel shaft 103 can move from the left end to the right end along the inner ring of the brake ring 4, then the wheel shaft 103 can be contacted with the damping brake block 401, and the resistance when the wheel shaft 103 rotates is increased instantaneously, so that the braking effect on the whole car frame is achieved, the rail car frame can be decelerated and braked, and the impact force on the front car is avoided or further slowed down.
Example 2
referring to fig. 3 and 5, in embodiment 2, a latch gear 12 is provided on each wheel shaft 103, a latch movable groove 107 is provided transversely on the chassis frame 1 at the position of the latch gear 12, a latch block 9 is provided in each latch movable groove 107, and a latch tooth is provided on the side of the latch block 9 facing the latch gear 12.
Further, a convex arc-shaped steel plate 701 is connected to the right end surface of the impact beam 7, and a rubber layer is provided on the arc-shaped steel plate 701 at this time. A locking rod 10 is connected to the arc-shaped steel plate 701, and the upper end of the locking block 9 is fixedly connected to the locking rod 10. Meanwhile, in order to ensure that the locking rod 10 moves horizontally in the transverse direction, a guide sleeve 11 corresponding to the locking rod 10 is welded on the upper surface of the chassis frame 1, and the locking rod 10 penetrates through the guide sleeve 11 during arrangement.
In embodiment 2, two locking bars 10 are provided and mirror-symmetrically provided on both sides of the connecting bar 5, and two locking gears 12 are provided on each wheel shaft 103, so that the balance of the wheel shafts during emergency braking can be ensured.
In the emergency braking of the rail car frame disclosed in the embodiment 2, the initial stage braking process of the rail car is the same as that of the embodiment 1, and the wheel shaft 103 is subjected to friction deceleration through the damping brake pad 401 in the brake ring 4, so that a reasonable braking effect is achieved.
When the speed of the mine car is too high, the track mine car cannot be braked only by the damping brake block 401, at this time, the mine car still has larger inertia, the compression amount of the spring 8 is maximized, the arc-shaped steel plate 701 connected to the anti-collision beam 7 is bent under the continuous action of the inertia of the mine car, the locking rod 10 connected with the arc-shaped steel plate 701 can move relatively between the guide sleeve 11 and the chassis frame 1, so that the locking gear 12 on the wheel shaft 103 is contacted with the locking block 9 at the lower end of the locking rod 10, and the whole wheel shaft 103 is directly locked, so that the wheel shaft cannot rotate, the emergency brake effect is effectively achieved, the collision of front and rear car sections of the track mine car is effectively avoided, and the track mine car is high in safety.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. A rail car frame with emergency braking function, comprising:
the loading rack is used for connecting two adjacent frames and for installing a carriage;
the chassis frame is used for installing the brake assembly and the walking assembly, and the cargo carrying frame is fixedly arranged above the chassis frame;
the walking assembly comprises wheel shafts which are rotatably connected to the left end and the right end of the chassis frame through bearings, and mine car wheels are fixedly connected to the front end and the rear end of the wheel shafts extending out of the chassis frame;
the braking assembly comprises waist-shaped braking rings which are horizontally arranged and sleeved in a wheel shaft, one end of the inner wall of each waist-shaped braking ring is smoothly arranged, the other end of each waist-shaped braking ring is provided with a damping braking block, a connecting rod is arranged between the two waist-shaped braking rings, one waist-shaped braking ring is connected with a pushing rod extending out of the chassis frame, the end part of the pushing rod is connected with an anti-collision beam, and a plurality of springs are connected between the anti-collision beam and the chassis frame;
the anti-collision device comprises chassis frames, and is characterized in that two wheel shafts are provided with locking gears, the outer ends of anti-collision beams are connected with protruding arc-shaped steel plates, locking rods arranged above the chassis frames are connected to the arc-shaped steel plates, locking blocks aligned with the corresponding locking gears are connected to the locking rods, and locking teeth are arranged on the side faces of the locking blocks, facing the locking gears.
2. The track car frame with the emergency braking function according to claim 1, wherein a guide sleeve which plays a role in guiding the locking rod is fixedly arranged on the chassis frame.
3. The track car frame with the emergency braking function according to claim 2, wherein a clamping block movable groove is formed in the chassis frame at the position of the clamping gear, and the clamping block is arranged in the clamping block movable groove and the upper end of the clamping block is connected with the locking rod.
4. A rail car frame with emergency braking function according to claim 3, wherein two locking gears are symmetrically arranged on each wheel axle, and two locking rods are also symmetrically connected on the arc-shaped steel plate.
5. The track car frame with an emergency braking function according to any one of claims 1 to 4, wherein the outer side surface of the arc-shaped steel plate is provided with a rubber layer.
6. The track car frame with the emergency braking function according to claim 1, wherein the left end and the right end of the chassis frame are provided with wheel shaft grooves for installing wheel shafts, bearings are fixedly arranged at the front end and the rear end of the wheel shaft grooves, the chassis frame is provided with strip grooves for installing connecting rods and pushing rods, and a brake ring movable groove for installing waist-type brake rings is arranged at the intersection of the strip grooves and the wheel shaft grooves.
7. The track car frame with the emergency braking function according to claim 1, wherein the damping brake pads in the waist-shaped brake ring are arranged in a semicircular shape, and a smooth copper layer is plated on the inner wall of the waist-shaped brake ring on the opposite side of the damping brake pads.
8. The rail car frame with emergency braking function of claim 1, wherein a wear layer is provided on a wheel axle located in the waist brake ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210165450.0A CN114407943B (en) | 2022-02-23 | 2022-02-23 | Track mine car frame with emergency braking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210165450.0A CN114407943B (en) | 2022-02-23 | 2022-02-23 | Track mine car frame with emergency braking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114407943A CN114407943A (en) | 2022-04-29 |
| CN114407943B true CN114407943B (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210165450.0A Active CN114407943B (en) | 2022-02-23 | 2022-02-23 | Track mine car frame with emergency braking function |
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| Country | Link |
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| CN (1) | CN114407943B (en) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2196057Y (en) * | 1994-07-07 | 1995-05-03 | 王志军 | Vehicle anticollision emergency brake |
| CN2265932Y (en) * | 1996-07-23 | 1997-10-29 | 张明德 | Slow collison bumper device for car |
| CN2848666Y (en) * | 2005-11-12 | 2006-12-20 | 薛昌谋 | Mine truck braking device |
| CN101659265B (en) * | 2009-09-23 | 2012-05-23 | 徐亲成 | Inclined roadway anti-running car tramcar |
| US8660756B2 (en) * | 2010-01-11 | 2014-02-25 | Honda Motor Co., Ltd. | Collision mitigation system |
| CN203237254U (en) * | 2013-05-10 | 2013-10-16 | 金力 | Self-braking inclined shaft catcher |
| CN104149800B (en) * | 2014-06-30 | 2017-04-19 | 山西晋城无烟煤矿业集团有限责任公司 | Inclined roadway tramcar |
| CN204355051U (en) * | 2015-01-27 | 2015-05-27 | 广东梅雁吉祥水电股份有限公司 | A kind of mine car underframe |
| CN210017017U (en) * | 2019-05-10 | 2020-02-07 | 吴江恒嘉机械设备有限公司 | Brake mechanism for harrow |
| CN111003013B (en) * | 2020-01-09 | 2021-07-30 | 阿拉善左旗珠拉黄金开发有限责任公司 | Mine car of safety braking |
| CN212500308U (en) * | 2020-05-13 | 2021-02-09 | 刘福臣 | Mine car overspeed braking device and intelligent overspeed braking mine car |
| CN213384259U (en) * | 2020-10-26 | 2021-06-08 | 云南博泽矿山工程有限公司 | Mine car device with emergency braking function for mine engineering |
| CN213473141U (en) * | 2020-11-06 | 2021-06-18 | 郑州科技学院 | Mining frame |
| CN215793998U (en) * | 2021-07-28 | 2022-02-11 | 浙江农林大学暨阳学院 | Health care vehicle for infants |
-
2022
- 2022-02-23 CN CN202210165450.0A patent/CN114407943B/en active Active
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| CN114407943A (en) | 2022-04-29 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A rail mining car frame with emergency braking function Granted publication date: 20230526 Pledgee: Wuhe County Sub branch of Postal Savings Bank of China Co.,Ltd. Pledgor: ANHUI WANHANG RAIL TRANSIT EQUIPMENT CO.,LTD. Registration number: Y2024980001574 |
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