CN218025050U

CN218025050U - Crane cart running speed measuring device

Info

Publication number: CN218025050U
Application number: CN202222026431.8U
Authority: CN
Inventors: 胡朋
Original assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Current assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-12-13
Anticipated expiration: 2032-08-02

Abstract

The utility model provides a crane cart running speed measuring device, which comprises a starting point photoelectric switch and a reflecting plate which are arranged at the measuring starting point of a crane cart track, and an end point photoelectric switch and a distance meter which are arranged at the measuring end point of the crane cart track, wherein the transmitting end of the distance meter is aligned to the reflecting plate; the starting point photoelectric switch, the end point photoelectric switch and the distance measuring instrument are connected with a controller, and the controller is further connected with a timer. The utility model discloses can be accurate measure cart running gear's speed, avoided the human factor to lead to producing the error, and be applicable to different types of hoisting machinery, have that the error is little, the precision is high, easy operation and application scope wide advantage.

Description

Crane cart running speed measuring device

Technical Field

The utility model belongs to the technical field of the experimental auxiliary assembly technique of hoisting machinery and specifically relates to a crane cart functioning speed measuring device is related to.

Background

The crane cart is an important working mechanism of the crane, such as a shipbuilding gantry crane, a shore container crane, a gantry crane and the like, and can enable the crane to lift heavy objects to advance to a place needing to go along a track. The crane as special equipment needs a third-party inspection detection mechanism to carry out legal inspection on the crane, and has a specified requirement on speed deviation. Some cranes can display the speed of the cranes, most cranes do not have speed detection devices, and the cranes are used as third-party inspection mechanisms and need to independently detect the speed by using a measuring instrument and a detection method. At present, a steel tape and a stopwatch are mainly adopted to measure the running speed of a crane cart, two lines are marked on the ground, the stopwatch is used to measure the time required by the crane cart to sequentially pass through the two lines, the steel tape is used to measure the horizontal distance between the two lines, and finally the distance is divided by the time to obtain the running speed of the crane cart. The biggest problem of the method is that the moment that the cart passes through the two lines can be judged only by the senses of people, the time is measured by manually controlling the start and the end of a stopwatch, and the error is large. In addition, most cranes have a large cart running mechanism, and it is inconvenient to operate the crane because the crane needs to quickly go to the finish line to check the time when the crane passes through the finish line after the start key of the stopwatch is pressed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crane cart running speed measuring device can realize the accurate measurement to crane cart running gear speed, and easy operation is convenient, and measuring result is reliable and stable.

According to an object of the present invention, the present invention provides a crane cart running speed measuring device, which comprises a starting point photoelectric switch and a reflecting plate arranged at a crane cart track measuring starting point, and a terminal point photoelectric switch and a distance meter arranged at a crane cart track measuring terminal point, wherein a transmitting end of the distance meter is aligned with the reflecting plate; the starting point photoelectric switch, the end point photoelectric switch and the distance measuring instrument are connected with a controller, and the controller is further connected with a timer.

Furthermore, the reflecting surface of the reflecting plate is perpendicular to the direction of the crane cart track.

Further, the reflecting plate and the emitting end of the starting photoelectric switch are in the same vertical plane.

Furthermore, a connecting line of the transmitting end of the terminal photoelectric switch and the transmitting end of the distance meter is perpendicular to the crane cart track.

Further, the range finder is a laser range finder.

Further, the reflection plate may reflect an optical signal of the laser range finder.

Further, the controller is provided with a data processing module and a storage module, and the controller is connected with a display screen.

Furthermore, the system also comprises a power supply which is respectively connected with the starting point photoelectric switch, the end point photoelectric switch, the controller, the timer and the distance meter.

Furthermore, the starting point photoelectric switch, the reflecting plate, the end point photoelectric switch and the distance meter are fixed on one side of the crane cart track through a support frame.

Further, the starting point photoelectric switch, the reflecting plate, the ending point photoelectric switch and the distance meter are positioned on the same side of the crane cart track.

The technical scheme of the utility model can be accurate measure cart running gear's speed, avoided the human factor to lead to producing the error, and be applicable to different types of hoisting machinery, have that the error is little, the precision is high, easy operation and application scope are wide advantage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description 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 schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the operation of the present invention;

in the figure, 1, a heavy locomotive track; 2. the device comprises a starting point photoelectric switch 3, a reflecting plate 4, an end point photoelectric switch 5, a distance meter 6, a power supply 7, a controller 8 and a timer.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments 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 efforts all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between 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.

Example 1

As shown in fig. 1-2:

the device for measuring the running speed of the crane cart comprises a starting point photoelectric switch 2 and a reflecting plate 3 which are arranged at a measuring starting point of a crane cart track 1, and an end point photoelectric switch 4 and a distance meter 5 which are arranged at a measuring end point of the crane cart track 1. Along the direction of the crane cart track 1, a position is selected as a measuring starting position, and the starting photoelectric switch 2 and the reflecting plate 3 are arranged beside the crane cart track 1 through a supporting frame. The emitting end of the starting point photoelectric switch 2 is aligned with the crane cart track, the reflecting surface of the reflecting plate 3 is vertical to the crane cart track 1, and the reflecting plate 3 is aligned with one end of the starting point photoelectric switch 2. The reflection plate 3 may reflect an optical signal of the laser range finder.

Along the direction of crane cart track 1, select a position as the measured final position, terminal photoelectric switch 4's transmitting terminal aims at crane cart track, and terminal photoelectric switch 4's one end aligns with the transmitting terminal of distancer 5, and the transmitting terminal of distancer 5 aims at reflecting plate 3, and terminal photoelectric switch 4 and distancer 5 pass through the support frame to be fixed together. The distance measuring instrument 5 is a laser distance measuring instrument and can be in communication connection with the controller 7.

In this embodiment, the protection level of the casing of the starting photoelectric switch 2 and the ending photoelectric switch 4 is ip 67 or more, and the outdoor use can be satisfied.

The controller 7 can process the signals sent by the start-point photoelectric switch 2 and the end-point photoelectric switch 4 and send instructions to the timer 8 and the distance meter 5. The controller 7 has a data processing storage function and a screen display function. The controller 7 establishes communication connection with the starting photoelectric switch 2, the ending photoelectric switch 4, the timer 8 and the distance meter 5 through cables. The timer 8 has high precision and can establish communication connection with the controller 7.

The power supply 6 is a lithium battery mobile power supply, and the power supply 6 is used for providing power required by work for the starting point photoelectric switch 2, the end point photoelectric switch 4, the controller 7, the timer 8 and the range finder 5.

When the cart running mechanism of the crane passes through the starting point photoelectric switch 2 at the starting position, the starting point photoelectric switch 2 outputs a switching signal to the controller 7, the controller 7 sends an instruction to the timer 8 after receiving the switching signal, and the timer 8 starts to time. When a cart running mechanism of the crane passes through the end photoelectric switch 4 at the end position, the end photoelectric switch 4 outputs a switch signal to the controller 7, the controller 7 sends an instruction to the timer 8 and the distance meter 5 together after receiving the signal, the timer 8 stops timing, the distance meter 5 starts to measure the distance between the start photoelectric switch 2 and the end photoelectric switch 4, the controller obtains the cart running speed of the crane through calculation, and the calculated speed is displayed on a screen.

The utility model discloses can be accurate measure cart running gear's speed, avoided the human factor to lead to producing the error, and be applicable to different types of hoisting machinery, have that the error is little, the precision is high, easy operation and application scope wide advantage.

Finally, 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 still 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

1. The device for measuring the running speed of the crane cart is characterized by comprising a starting point photoelectric switch and a reflecting plate which are arranged at the measuring starting point of a crane cart track, and an end point photoelectric switch and a distance meter which are arranged at the measuring end point of the crane cart track, wherein the transmitting end of the distance meter is aligned to the reflecting plate; the starting point photoelectric switch, the end point photoelectric switch and the range finder are connected with a controller, and the controller is further connected with a timer.

2. The device for measuring the traveling speed of the crane cart according to claim 1, wherein the reflecting surface of the reflecting plate is disposed perpendicular to the direction of the rail of the crane cart.

3. The device for measuring the traveling speed of a crane cart according to claim 1, wherein the reflecting plate is located in the same vertical plane as the emitting end of the origin photoelectric switch.

4. The device for measuring the running speed of the crane cart according to claim 1, wherein a connecting line between the transmitting end of the endpoint photoelectric switch and the transmitting end of the distance meter is perpendicular to the crane cart track.

5. The apparatus as claimed in claim 1, wherein the distance meter is a laser distance meter.

6. The apparatus as claimed in claim 5, wherein the reflecting plate reflects an optical signal of the laser rangefinder.

7. The device for measuring the running speed of the crane cart according to claim 1, wherein the controller has a data processing module and a storage module, and a display screen is connected to the controller.

8. The device for measuring the running speed of the crane cart according to claim 1, further comprising a power supply source, wherein the power supply source is connected to the start-point photoelectric switch, the end-point photoelectric switch, the controller, the timer, and the distance meter, respectively.

9. The device for measuring the traveling speed of the crane cart according to claim 1, wherein the start photoelectric switch, the reflection plate, the end photoelectric switch and the distance meter are fixed to one side of the crane cart rail by a support frame.

10. The crane cart running speed measuring apparatus according to claim 9, wherein the start photoelectric switch, the reflection plate, the end photoelectric switch, and the distance meter are located on the same side of the crane cart rail.