CN217649454U - Monorail crane and brake trolley thereof - Google Patents
Monorail crane and brake trolley thereof Download PDFInfo
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- CN217649454U CN217649454U CN202221107011.6U CN202221107011U CN217649454U CN 217649454 U CN217649454 U CN 217649454U CN 202221107011 U CN202221107011 U CN 202221107011U CN 217649454 U CN217649454 U CN 217649454U
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Abstract
The utility model provides a single track hangs and braking dolly thereof, wherein the braking dolly is through adopting the braking subassembly to carry out the braking action, and its braking subassembly constitutes lever structure through braking extensible member, brake arm and braking piece, and braking force is big. In addition, the overspeed signaling assembly is composed of the speed-limiting brake triggering mechanism and the brake valve, and when the speed is overspeed, the control assembly can quickly respond and execute the braking action. The speed-limiting braking trigger mechanism adopts independent speed measuring wheels, and the speed measuring wheels are tightly attached to the track through springs and can be adaptive to the fluctuation change of the track. The monorail crane adopts the braking trolley. The utility model discloses overall structure adopts the similar braking form of drive division of single track hanging, and its hydro-cylinder and pipeline can be used each other, and interchangeability is good, reduction in production cost.
Description
Technical Field
The utility model belongs to the technical field of the band-type brake braking, concretely relates to monorail crane and braking dolly thereof.
Background
Mining monorail cranes are well-known auxiliary transportation devices that can be used downhole, for example, for transporting hydraulic supports or passenger cars can be provided on monorail cranes to transport workers. When a person is lifted by the monorail, the safety performance of the monorail is higher than that of goods transportation, the conventional method is that the braking trolleys are respectively arranged in the front and at the back of the passenger car, and the passenger car is quickly braked by the braking trolleys.
In the existing brake trolley, for example, a rope-traction monorail crane brake car provided in patent No. CN2014200513116, an oil cylinder controls an inclined block to act, and then the inclined block presses the lower end of a brake block, so that the brake block moves inwards to contact with a rail web to realize braking.
However, the brake trolley with the existing structure realizes the contact braking of the brake block and the track through the extrusion of the inclined block, so that the braking force is small, the structure is complex and the failure rate is high; in addition, one of the travelling wheels is used as a speed measuring wheel in the braking trolley with the existing structure, and the travelling wheels are not in contact with the track when the braking trolley is in a certain fluctuation road and curve, so that the measuring accuracy is influenced, and the self-adaption is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a single track hangs and braking dolly thereof solves the less problem of current braking dolly braking force, the poor problem of precision that tests the speed.
In order to solve the above problems, the present invention provides a braking trolley, which travels on a track, and comprises a frame, and a roller assembly, a control assembly and at least one braking assembly arranged on the frame;
the roller assembly comprises at least one pair of walking wheels, and the two opposite walking wheels are arranged on two sides of a web plate of the track in a rolling manner;
the braking assembly comprises a pair of braking arms arranged on two sides of the track, lower hinged points of the two opposite braking arms are connected through a braking telescopic piece, hinged points in the middle of the braking arms are hinged to the frame, upper hinged points of the two opposite braking arms are respectively connected with a braking piece, and a braking block arranged on the braking piece can abut against a web plate of the track;
the control assembly comprises a speed-limiting brake triggering mechanism and a brake valve, the speed-limiting brake triggering mechanism is used for triggering the brake valve to act when the locomotive is overspeed, and the brake valve is used for controlling the brake telescopic piece to act so as to realize braking.
In a possible embodiment, the braking telescopic element is a spring return type single-acting hydraulic cylinder.
In a possible embodiment, a pressure pump is further arranged on the frame, and the pressure pump is used for releasing the brake assembly.
In a possible embodiment, the pressurizing pump is a manual pressurizing pump.
In a possible embodiment, the speed-limiting braking triggering mechanism comprises a centrifugal speed limiter and a speed limiting wheel, the speed limiting wheel is elastically pressed on the track, and the speed limiting wheel is used for driving a triggering piece in the centrifugal speed limiter to throw out.
In a possible embodiment, the roller assembly further comprises at least one pair of limiting wheels, and two opposite limiting wheels are arranged on the side surface of the lower rail head of the rail in a rolling manner.
In a possible embodiment, the braking member comprises a braking shaft, a guide sleeve is fixed on the frame, the braking shaft moves linearly in the guide sleeve, and a braking block is movably connected to the end of the braking shaft.
In a possible embodiment, the braking trolley described above is mounted.
The utility model provides a braking dolly carries out the braking action through adopting braking subassembly, and lever structure is constituteed through braking extensible member, brake arm and braking piece to its braking subassembly, and braking force is big. In addition, the overspeed signaling assembly is composed of the speed-limiting brake triggering mechanism and the brake valve, and when the speed is exceeded, the control assembly can quickly respond and execute the braking action. The speed-limiting braking trigger mechanism adopts independent speed measuring wheels, and the speed measuring wheels are tightly attached to the track through springs and can be adaptive to the fluctuation change of the track. The overall structure adopts a braking form similar to that of a driving part of the monorail crane, the oil cylinder and the pipeline can be used mutually, the interchangeability is good, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a brake car according to an embodiment of the present invention installed on a track;
fig. 2 is a top view of the braking trolley according to an embodiment of the present invention;
fig. 3 is a side view of a brake carriage according to an embodiment of the present invention mounted on a track;
fig. 4 is a rear view of the braking carriage according to an embodiment of the present invention mounted on a rail;
fig. 5 is a perspective view of a brake dolly according to an embodiment of the present invention.
In the figure: 10. a brake assembly; 11. a brake arm; 12. braking the telescopic member; 13. a stopper; 131. a brake block; 14. a connecting rod; 20. a frame; 30. a control component; 31. a centrifugal governor; 32. a brake valve; 33. a tachometer wheel; 40. a limiting wheel; 50. a traveling wheel; 60. a manual pressurizing pump; 70. a track.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments, but not all embodiments, in the present invention, based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative labor belong to the scope of the present invention.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present disclosure, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 to 5, the present embodiment provides a brake trolley which runs on a track 70, and the track 70 is generally divided into a light rail (i-shaped steel rail) and a heavy rail (i-shaped steel rail is heightened up and down and a special groove is added), and the present embodiment adopts the heavy rail.
Referring to fig. 2, 3 and 5, the brake trolley includes a frame 20, the frame 20 having a groove structure formed thereon, and a rail 70 received in the groove structure. Optionally, two pairs of road wheels 50 are provided on the frame 20, and the two pairs of road wheels 50 are arranged on both sides of the rail 70 and in the groove of the web of the rail 70 and run on the wing plates in the rail 70. In some possible embodiments, the two pairs of road wheels 50 are symmetrically disposed in the middle of the frame 20.
Referring to fig. 3 and 5, in some possible embodiments, the brake assembly 10 is symmetrically disposed at the left and right ends of the frame 20, the brake assembly 10 includes a pair of brake arms 11 disposed at both sides of the rail 70, the lower relatively points of the two opposite brake arms 11 are connected by a brake expansion member 12, the middle hinge point of the two brake arms 11 is connected with the frame 20 by a connecting rod 14 to form the fulcrum of the lever, the upper hinge points of the two brake arms 11 are respectively connected with a brake piece 13, and optionally, a brake block 131 disposed on the brake piece 13 can be abutted against the web of the rail 70 to realize braking.
Here, by controlling the telescopic action of the brake telescopic member 12, the lower hinge points of the pair of brake arms 11 are pushed to move outwards or inwards at the same time, and the two brake arms 11 drive the brake piece 13 at the upper hinge points thereof to press the rail or release the rail by taking the middle hinge point thereof as the fulcrum of the lever, thereby realizing contracting brake or releasing brake.
Referring to fig. 3, in some possible embodiments, the braking member 13 comprises a braking shaft and a guide sleeve fixed to the carriage 20, the braking shaft moving linearly in the guide sleeve, and the end of the braking shaft is movably connected with a braking block 131, the braking block 131 being used to abut against the web of the rail 70.
In a possible embodiment, the braking telescopic part 12 adopts a spring return type single left-right oil cylinder, the braking force is large, and quick return can be realized.
Referring to fig. 1, in the braking trolley of the embodiment, a control assembly 30 is arranged on the frame 20, the control assembly 30 includes a speed-limiting braking triggering mechanism and a brake valve 32, the speed-limiting braking triggering mechanism is used for triggering the brake valve to act when the locomotive is overspeed, and the brake valve 32 is used for controlling the brake telescopic member 12 to act so as to realize braking. Specifically, the speed-limiting braking triggering mechanism comprises a centrifugal speed limiter 31 and a speed measuring wheel 33, the principle of the centrifugal speed limiter is that the speed measuring wheel 33 rolls on a rail, a triggering part in the centrifugal speed limiter 31 can be driven to extend out (namely, to be thrown out left and right under the centrifugal force) in the rolling process of the speed measuring wheel 33, the thrown triggering part can trigger the switch of a braking valve, and the braking valve 32 controls a hydraulic system to be switched to a braking oil path, so that emergency braking can be realized.
Optionally, the tachometer wheel 33 is fixed on a rotating plate, and the rotating plate is pulled by a spring to enable the tachometer wheel 33 to be always attached to the track, so that the accuracy of speed measurement can be improved.
Referring to fig. 4, a pressure pump for releasing the brake assembly 10 is optionally provided on the rear surface of the frame 20 on which the control assembly is provided. Alternatively, the pressurizing pump adopts a manual pumping pump 60, namely when the brake assembly 10 needs to be manually released, the manual pumping pump is controlled by a rocker to release the brake.
Referring to fig. 1 and 4, in some examples, two pairs of limiting wheels 40 are further provided on the frame 20, the limiting wheels 40 and the road wheels 50 together constitute a roller assembly for braking the trolley, the limiting wheels 40 are provided on both sides of the frame 20, and the limiting wheels 40 roll along the side of the lower rail head of the rail, which is used for lateral limiting of the braking trolley.
The embodiment of the utility model provides a still provide a single track and hang, be provided with the passenger car on this single track hangs, all install the braking dolly that above-mentioned embodiment provided around the passenger car, through adopting this braking dolly, braking force is big, and braking effect is good, has improved the security performance that the single track hung.
When the monorail crane runs at a set speed, the centrifugal speed limiter on the control assembly throws out the trigger piece of the monorail crane and triggers the brake valve 32 to act, and the brake valve 32 controls the spring reset type single left oil cylinder and the spring reset type single right oil cylinder on the brake assembly to release pressure so as to realize emergency braking.
It should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical solutions may be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. The brake trolley runs on a track and is characterized by comprising a trolley frame, and a roller assembly, a control assembly and at least one brake assembly which are arranged on the trolley frame;
the roller assembly comprises at least one pair of walking wheels, and the two opposite walking wheels are arranged on two sides of a web plate of the track in a rolling manner;
the braking assembly comprises a pair of braking arms arranged on two sides of the track, lower hinged points of the two opposite braking arms are connected through a braking telescopic piece, hinged points in the middle of the braking arms are hinged to the frame, upper hinged points of the two opposite braking arms are respectively connected with a braking piece, and a braking block arranged on the braking piece can abut against a web plate of the track;
the control assembly comprises a speed-limiting brake triggering mechanism and a brake valve, the speed-limiting brake triggering mechanism is used for triggering the brake valve to act when the locomotive is overspeed, and the brake valve is used for controlling the brake telescopic piece to act so as to realize braking.
2. The brake trolley according to claim 1, wherein the brake extension member is a spring return single acting hydraulic cylinder.
3. The brake trolley according to claim 2, wherein a pressure pump is further provided on the frame for releasing the brake assembly.
4. The brake trolley according to claim 3, wherein the booster pump is a manual booster pump.
5. The braking trolley as claimed in claim 1, characterized in that the speed-limiting braking triggering mechanism comprises a centrifugal speed limiter and a speed limiting wheel, the speed limiting wheel is elastically pressed on the rail, and the speed limiting wheel is used for driving a triggering part in the centrifugal speed limiter to throw out.
6. The braking trolley according to claim 1, wherein the roller assembly further comprises at least one pair of limiting wheels, and two opposite limiting wheels are arranged on the side surface of the lower rail head of the rail in a rolling manner.
7. The braking trolley according to claim 1, wherein the braking member comprises a braking shaft, a guide sleeve is fixed on the frame, the braking shaft moves linearly in the guide sleeve, and a brake block is movably connected to the end of the braking shaft.
8. A monorail crane, characterized in that a brake trolley according to any one of claims 1-7 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221107011.6U CN217649454U (en) | 2022-05-10 | 2022-05-10 | Monorail crane and brake trolley thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221107011.6U CN217649454U (en) | 2022-05-10 | 2022-05-10 | Monorail crane and brake trolley thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217649454U true CN217649454U (en) | 2022-10-25 |
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ID=83664521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221107011.6U Active CN217649454U (en) | 2022-05-10 | 2022-05-10 | Monorail crane and brake trolley thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217649454U (en) |
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2022
- 2022-05-10 CN CN202221107011.6U patent/CN217649454U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 411300 Shaoshan High-tech Industrial Development Zone, Xiangtan City, Hunan Province Patentee after: Xiangtan Hengxin Industrial Co.,Ltd. Address before: 411300 Shaoshan High-tech Industrial Development Zone, Xiangtan City, Hunan Province Patentee before: XIANGTAN HENGXIN INDUSTRY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |