CN217126699U - Monorail crane speed measuring trolley - Google Patents

Abstract

The utility model discloses a monorail crane speed measurement trolley, which comprises a trolley frame main body, wherein the trolley frame main body consists of a first side frame arranged on one side of a track, a second side frame arranged on the other side of the track, and a connecting piece for connecting the first side frame and the second side frame, the first side frame and the second side frame are respectively rotatably connected with walking wheels which are connected on the track in a rolling manner, and a speed measurement component is arranged on the first side frame; the speed measuring component comprises a swing arm, a speed measuring shaft is rotatably connected to the swing arm, an encoder fixed to the swing arm is arranged at one end of the speed measuring shaft, a speed measuring wheel rotating along with the encoder is arranged at the other end of the speed measuring shaft, an encoder rotating shaft connected with the speed measuring shaft in a transmission mode is arranged in the encoder, one end of the swing arm is rotatably connected to a first side frame, a first tension spring enabling the wheel surface of the speed measuring wheel to be tightly attached to a track is arranged at the other end of the swing arm, one end of the first tension spring is connected to the swing arm, and the other end of the first tension spring is connected to the first side frame. The monorail crane speed measuring trolley has the characteristics of real-time speed measurement and rapid brake feedback, and is perfect in overall function and high in practicability.

Description

Monorail crane speed measuring trolley

Technical Field

The utility model relates to a monorail hoist technical field, more specifically say, it relates to a monorail crane speed-measuring dolly.

Background

At present, a monorail crane vehicle becomes main underground auxiliary transportation equipment, and a speed measuring trolley is generally arranged for monitoring the allowable speed of the trolley in order to ensure the safety of workers and the stability of the equipment during operation. According to the requirements of coal mine safety regulations, the highest running speed of the monorail crane in a roadway is not more than 2m/s, and emergency braking is required to prevent the monorail crane from being out of control when the speed reaches 2.6 m/s. Aiming at the problems, the developed monorail crane speed measuring trolley can measure distance, a centrifugal speed limiting device is used for measuring the speed to prevent the monorail crane from exceeding the speed, and a speed limiting mechanism is triggered to brake before the monorail crane reaches 2.5 m/s. Therefore, the utility model provides a monorail crane speed measuring trolley.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, provide a monorail crane dolly that tests the speed, this monorail crane dolly that tests the speed has real-time speed measuring, the rapid characteristics of brake feedback.

In order to solve the technical problem, the purpose of the utility model is to realize like this: the utility model relates to a monorail crane speed measuring trolley, which comprises a trolley frame main body, wherein the trolley frame main body consists of a first side frame arranged on one side of a track, a second side frame arranged on the other side of the track, and a connecting piece for connecting the first side frame and the second side frame, the first side frame and the second side frame are respectively rotatably connected with walking wheels which are connected on the track in a rolling manner, and a speed measuring component is arranged on the first side frame;

the subassembly that tests the speed includes the swing arm, rotates on the swing arm to be connected with the axle that tests the speed, and the one end of the axle that tests the speed is equipped with to be fixed encoder, the other end in the swing arm are equipped with along with its pivoted tachometer wheel, be equipped with the encoder pivot of being connected with the transmission of the axle that tests the speed in the encoder, the one end of swing arm is rotated and is connected on first side bearer, and the other end is equipped with and makes the first extension spring that rail was hugged closely to tachometer wheel face, and the one end of first extension spring is connected on the swing arm, the other end is connected on first side bearer.

The utility model discloses further set up to: a centrifugal speed limiting component is arranged on the second side frame;

the centrifugal speed limiting assembly comprises a centrifugal mounting seat fixed on the second side frame, a centrifugal speed limiting mounting bracket is arranged on the centrifugal mounting seat, a centrifugal speed limiting shaft is rotatably connected on the centrifugal speed limiting mounting bracket, a driving wheel rotating along with the centrifugal speed limiting shaft is arranged at one end of the centrifugal speed limiting shaft, a centrifugal speed limiter rotating along with the centrifugal speed limiting shaft is arranged at the other end of the centrifugal speed limiting shaft, one end of the centrifugal speed-limiting mounting bracket is rotatably connected to the centrifugal mounting seat, the other end of the centrifugal speed-limiting mounting bracket is provided with a second tension spring which enables the wheel surface of the driving wheel to be tightly attached to the track, one end of the second tension spring is connected to the centrifugal speed-limiting mounting bracket, the other end of the second tension spring is connected to the centrifugal mounting seat, a stop reversing valve is also arranged on the centrifugal speed-limiting mounting bracket, a reversing thumb wheel is arranged on the stop reversing valve, the centrifugal speed limiting mounting bracket is rotatably connected with a shifting lever assembly, and the shifting lever assembly comprises a shifting block with one end close to the centrifugal speed limiter and a limiting part with the other end close to the reversing shifting wheel.

The utility model discloses further set up to: the limiting part is a bolt which is in threaded connection with the deflector rod assembly.

The utility model discloses further set up to: the encoder is an explosion-proof incremental encoder.

To sum up, the utility model discloses following beneficial effect has: the utility model relates to a monorail crane dolly that tests speed, this dolly that tests speed can carry out the range finding speed, emergency braking and prevent the occurence of failure, and reliable performance is high, and the structure is simple relatively, convenient maintenance and debugging, and whole function is perfect, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic structural view of the frame body according to the present invention;

fig. 5 is a schematic view of the overall structure of the speed measuring assembly of the present invention;

fig. 6 is a schematic view of the internal structure of the speed measuring module according to the present invention;

FIG. 7 is a schematic view of the overall structure of the centrifugal governor assembly of the present invention;

FIG. 8 is a schematic view of the centrifugal governor assembly of the present invention;

fig. 9 is a rear view schematic diagram of the centrifugal speed limiting assembly of the present invention.

Detailed Description

In order to better understand the technical solutions of the present invention for those skilled in the art, the following preferred embodiments of the present invention are described in conjunction with the specific examples, but it should be understood that these descriptions are only for the purpose of further explaining the features and advantages of the present invention, and are not intended to limit the patent requirements of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings and preferred embodiments.

Example 1

Referring to fig. 1 to 9, the monorail crane speed measurement trolley according to the embodiment includes a trolley frame main body, where the trolley frame main body includes a first side frame 1 disposed on one side of a track, a second side frame 2 disposed on the other side of the track, and a connector 3 connecting the first side frame 1 and the second side frame 2, where the first side frame 1 and the second side frame 2 are both rotatably connected with traveling wheels 4 connected to the track in a rolling manner, and a speed measurement component is disposed on the first side frame 1; the subassembly that tests the speed includes swing arm 5, rotates on swing arm 5 to be connected with and tests speed axle 6, and the one end of axle 6 that tests the speed is equipped with to be fixed encoder 7, the other end on the swing arm 5 are equipped with along with its pivoted tachometer wheel 8, be equipped with in the encoder 7 and test speed 6 transmission encoder pivot 9 of being connected, swing arm 5's one end is rotated and is connected on first side bearer 1, the other end is equipped with and makes tachometer wheel 8 wheel face hug closely orbital first extension spring 10, and the one end of first extension spring 10 is connected swing arm 5 is last, the other end is connected on first side bearer 1.

Further, a centrifugal speed limiting component is arranged on the second side frame 2; the centrifugal speed limiting assembly comprises a centrifugal mounting seat 11 fixed on the second side frame 2, a centrifugal speed limiting mounting bracket 12 is arranged on the centrifugal mounting seat 11, a centrifugal speed limiting shaft (not shown in the figure) is rotatably connected on the centrifugal speed limiting mounting bracket 12, a driving wheel 14 rotating along with the centrifugal speed limiting shaft (not shown in the figure) is arranged at one end of the centrifugal speed limiting shaft (not shown in the figure), a centrifugal speed limiter 15 rotating along with the centrifugal speed limiting shaft is arranged at the other end of the centrifugal speed limiting shaft, one end of the centrifugal speed limiting mounting bracket 12 is rotatably connected on the centrifugal mounting seat 11, a second tension spring 16 enabling the wheel surface of the driving wheel 14 to cling to a track is arranged at the other end of the centrifugal speed limiting shaft, one end of the second tension spring 16 is connected on the centrifugal speed limiting mounting bracket 12, a stop reversing valve 17 is further arranged on the centrifugal speed limiting mounting bracket 12, a reversing wheel 18 is arranged on the stop reversing valve 17, and a deflector rod assembly 19 is rotatably connected on the centrifugal speed limiting mounting bracket 12, the shifting lever assembly 19 comprises a shifting block 20 with one end close to the centrifugal speed limiter 15 and a limiting part 21 with the other end close to the reversing shifting wheel 18; the limiting part 21 is a bolt which is connected with the deflector rod assembly 19 in a threaded manner.

Preferably, the encoder 7 is an explosion-proof incremental encoder.

In the embodiment, when the monorail crane works normally, an encoder 7 (namely, an explosion-proof incremental encoder) on the trolley is used for recording the running distance, the operation speed and the overspeed condition; when the speed of the monorail hoist reaches 2.5m/s, the speed limiting block in the centrifugal speed limiter 15 is thrown out under the action of centrifugal force, the speed limiting block collides with a shifting block 20 on a shifting rod assembly 19, the shifting rod assembly 19 rotates, so that a limiting part 21 is separated from a reversing shifting wheel 18, a stop reversing valve 17 is opened, an oil cylinder connected with the stop reversing valve is decompressed, a spring releases elastic potential energy, and braking is driven (a braking mechanism is not shown in the technical scheme, so that the operation action of the technical scheme is only linked to the stop reversing valve 17 to send a reversing command).

The utility model relates to a monorail crane dolly that tests speed, this dolly that tests speed can measure the distance and test speed, emergency braking and prevent the occurence of failure, and reliable performance is high, and the structure is simple relatively, convenient maintenance and debugging, and whole function is perfect, and the practicality is strong.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate an orientation or positional relationship based on the actual orientation or positional relationship shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly in the present disclosure and encompass, for example, either a fixed connection, a removable connection, or an integral connection; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (4)

1. The utility model provides a monorail crane dolly that tests speed, includes the frame main part, the frame main part comprises the first side bearer of establishing in track one side, the second side bearer of establishing at the track opposite side, the connector of connecting first side bearer and second side bearer, all rotate on first side bearer and the second side bearer and be connected with the walking wheel of roll connection on the track, its characterized in that: a speed measuring component is arranged on the first side frame;

the subassembly that tests the speed includes the swing arm, rotates on the swing arm to be connected with the axle that tests the speed, and the one end of the axle that tests the speed is equipped with to be fixed encoder, the other end in the swing arm are equipped with along with its pivoted tachometer wheel, be equipped with the encoder pivot of being connected with the transmission of the axle that tests the speed in the encoder, the one end of swing arm is rotated and is connected on first side bearer, and the other end is equipped with and makes the first extension spring that rail was hugged closely to tachometer wheel face, and the one end of first extension spring is connected on the swing arm, the other end is connected on first side bearer.

2. The monorail crane speed-measuring trolley according to claim 1, characterized in that: a centrifugal speed limiting component is arranged on the second side frame;

the centrifugal speed limiting assembly comprises a centrifugal mounting seat fixed on the second side frame, a centrifugal speed limiting mounting bracket is arranged on the centrifugal mounting seat, a centrifugal speed limiting shaft is rotatably connected on the centrifugal speed limiting mounting bracket, a driving wheel rotating along with the centrifugal speed limiting shaft is arranged at one end of the centrifugal speed limiting shaft, a centrifugal speed limiter rotating along with the centrifugal speed limiting shaft is arranged at the other end of the centrifugal speed limiting shaft, one end of the centrifugal speed-limiting mounting bracket is rotatably connected to the centrifugal mounting seat, the other end of the centrifugal speed-limiting mounting bracket is provided with a second tension spring which enables the wheel surface of the driving wheel to be tightly attached to the track, one end of the second tension spring is connected to the centrifugal speed-limiting mounting bracket, the other end of the second tension spring is connected to the centrifugal mounting seat, a stop reversing valve is also arranged on the centrifugal speed-limiting mounting bracket, a reversing thumb wheel is arranged on the stop reversing valve, the centrifugal speed limiting mounting bracket is rotatably connected with a shifting lever assembly, and the shifting lever assembly comprises a shifting block with one end close to the centrifugal speed limiter and a limiting part with the other end close to the reversing shifting wheel.

3. The monorail crane speed-measuring trolley according to claim 2, characterized in that: the limiting part is a bolt which is in threaded connection with the deflector rod assembly.

4. The monorail crane speed measurement trolley according to any one of claims 1-3, wherein: the encoder is an explosion-proof incremental encoder.

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