CN213738260U

CN213738260U - Portal crane power supply unit and gantry crane

Info

Publication number: CN213738260U
Application number: CN202022105171.4U
Authority: CN
Inventors: 孙海; 焦广勇; 李鑫; 徐福津; 韩文华; 马学旭; 杨磊; 徐士宽; 陶祥根; 郑磊
Original assignee: Qianwan Port Area Branch Of Qingdao Port International Co ltd; Qingdao Port International Co Ltd
Current assignee: Qianwan Port Area Branch Of Qingdao Port International Co ltd; Qingdao Port International Co Ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-07-20
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a gantry crane power supply device and a gantry crane comprising the same; the portal crane also comprises a base and a machine room; the machine room comprises electric equipment and an electric control system; the power supply device comprises a current collector, a transmission device, a power supply device and a synchronous detection device; the current collector is connected with the electric equipment and the electric control system through cables respectively; the transmission device is positioned between the machine room and the current collector and is respectively connected with the machine room and the current collector so as to enable the current collector and the machine room to synchronously rotate; the power supply device is fixedly connected with the base, is rotatably and electrically connected with the current collector and is used for supplying power to the current collector; the synchronous detection device is respectively connected with the machine room and the current collector, detects whether the machine room and the current collector are synchronous or not, and is in communication connection with the electric control system; and generating an asynchronous signal when the asynchronous signal occurs, and transmitting the asynchronous signal to the electric control system to control the electric control system to stop. The utility model provides a computer lab and current collector be connected not hard up or the fracture arouses the cable fracture to cause the high damage of high pedestal jib crane to influence the problem of production.

Description

Portal crane power supply unit and gantry crane

Technical Field

The utility model belongs to the technical field of harbour handling equipment, specifically speaking relates to a high pedestal jib crane power supply unit and high pedestal jib crane.

Background

The main electric control devices of the portal crane (called gantry crane for short) are all arranged in the upper machine room. Because the door machine needs 360 degrees rotations when working, namely the machine room rotates with the hoisting device by 360 degrees, the power supply of the machine room adopts a sliding contact mode of a central current collector. Specifically, a carbon brush device and a power supply slip ring device are arranged; the carbon brush device comprises a plurality of carbon brushes; the power supply slip ring device comprises a plurality of power supply slip rings; the power supply slip ring device is fixed; the carbon brush device rotates with the machine room by 360 degrees, and each carbon brush slides on the corresponding power supply slip ring to obtain electricity in the rotating process. The carbon brush device and the machine room are driven to synchronously rotate through the transmission shaft and are electrically connected with the electric control device through cables.

The transmission shaft is driven by a rotating device of the machine room, and a cable of the machine room is fixedly connected with each carbon brush of the carbon brush device through a binding post. Therefore, the carbon brush device must be rotated synchronously with the machine room, and excessive angular misalignment is not allowed, otherwise the cable is subjected to stress and breaks. Two ends of the existing transmission shaft are respectively fixed with the machine room and the carbon brush device through bolts; once the bolt becomes loose or the drive shaft breaks are not discovered in time, significant failure can result. Directly resulting in long-term shutdown and production impact.

Disclosure of Invention

The utility model provides a high pedestal jib crane power supply unit and high pedestal jib crane through setting up synchronous detection module, detects the synchronism of computer lab and current collector, avoids taking the trouble operation, improves high pedestal jib crane's safety and operation safety, improves production efficiency.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

a portal crane power supply device comprises a base and a machine room; the machine room comprises electric equipment and an electric control system, and the power supply device of the portal crane comprises a current collector, a transmission device, a power supply device and a synchronous detection device;

the current collector is connected with the electric equipment and the electric control system through cables respectively;

the transmission device is positioned between the machine room and the current collector and is respectively connected with the machine room and the current collector so as to enable the current collector and the machine room to synchronously rotate;

the power supply device is fixedly connected with the base, is rotatably and electrically connected with the power receiver and is used for supplying power to the power receiver;

the synchronous detection device is respectively connected with the machine room and the current collector, detects whether the machine room and the current collector are synchronous or not, and is in communication connection with the electric control system; if the asynchronous signals occur, generating asynchronous signals and transmitting the asynchronous signals to the electric control system; the electric control system controls parking.

In one embodiment, the current collector is a carbon brush device; the power supply is a slip ring device which is connected with the carbon brush device in a matching manner.

In one embodiment, the transmission device includes a transmission shaft, and two ends of the transmission shaft are respectively connected with the machine room and the current collector.

Furthermore, the transmission device further comprises two universal joints which are positioned at two ends of the transmission shaft and respectively connected with the end parts of the two ends of the transmission shaft, the machine room and the current collector.

In some embodiments, the synchronization detection device comprises a connecting member and a limiting member; the connecting piece is connected with the machine room; the limiting piece is connected with the connecting piece and the current collector respectively.

Preferably, the limiting part is a limiting switch, and comprises a limiting rocker arm and a body; the limiting rocker arm is connected with the connecting piece; the body is fixedly connected with the current collector.

Further, the connecting piece comprises at least one connecting rod and a synchronous ring; one end of each connecting rod is fixedly connected with the lower part of the machine room, and the other end of each connecting rod is fixedly connected with the synchronizing ring;

the synchronous ring is of an annular structure and tends to be horizontally arranged above the current collector; a notch matched with the installation of the limit rocker arm is formed in the arc of the synchronizing ring; the tail end of the limiting rocker arm is arranged in the notch.

Preferably, the synchronizing ring comprises annular flat plates which are parallel up and down and fixed; the notches are disposed between the annular flat plates.

Preferably, the synchronizer ring is provided with an opening, and the size of the opening is larger than the diameter of the transmission shaft.

A portal crane comprises the portal crane power supply device.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model discloses a gantry crane power supply unit and a gantry crane comprising the same detect whether a machine room and a current collector rotate synchronously in real time by arranging a synchronous detection device; when the machine room and the current collector rotate asynchronously, asynchronous signals are generated and sent to the electric control system, and the electric control system controls the machine to stop. The problem that the connection between the machine room and the current collector is loosened or broken, the problem that the production is affected due to serious damage of the gantry crane and the problem that the long-time shutdown is caused due to the fact that the connection cable between the machine room and the current collector is broken cannot be found in time is solved; the utility model discloses an use then to improve production security and production efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a gantry crane power supply apparatus provided by the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure, the position of the upper end of the main shaft,

1. a machine room; 2. a transmission device; 3. a current collector; 4. a limiting member; 5. a connecting member; 6. a cable; 7. a power supply; 8. a base; 21. a drive shaft; 22. a universal joint; 31. a carbon brush device; 41. a body; 42. a limiting rocker arm; 43. a terminal end; 51. a connecting rod; 52. a synchronizer ring; 521. a lower annular flat plate; 522. an upper annular flat plate; 523. an opening; 524. a notch.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1 and 2, the utility model discloses a high pedestal jib crane includes base 8, computer lab 1, high pedestal jib crane power supply unit. The machine room 1 includes electric equipment and an electric control system. The power supply device supplies power to the electric equipment and the electric control system.

The power supply device of the portal crane comprises a current collector 3, a transmission device 2, a current supplier 7 and a synchronous detection device; the current collector 3 is located below the machine room 1, is connected with the machine room 1, and is connected with the electric equipment and the electric control system in the machine room 1 through a cable 6.

The transmission device 2 is located between the machine room 1 and the current collector 3 and is respectively connected with the machine room 1 and the current collector 3, so that when the machine room 1 rotates, the current collector 3 and the machine room 1 rotate synchronously, and the normal work of a cable 6 for connecting the electric equipment, the electric control system and the current collector 3 is ensured.

The synchronous detection device is connected with the machine room 1 and the current collector 3 and detects whether the machine room 1 and the current collector 3 rotate synchronously; the synchronous detection device is in communication connection with the electric control system; when the machine room 1 and the current collector 3 rotate asynchronously, an asynchronous signal is generated and transmitted to the electric control system; the electric control system controls the parking after receiving the asynchronous signal, so that the cable 6 connecting the machine room 1 and the current collector 3 is prevented from being broken, and the gantry crane is prevented from being seriously damaged; thereby preventing the long-time stop caused by serious damage of the portal crane and causing production delay.

The power supply 7 is fixedly connected with the base 8.

The utility model discloses a set up synchronous detection device real-time detection computer lab 1 and the rotatory whether synchronous of current collector 3, in case detect asynchronous promptly by electrical system initiation control parking, solve because serious accidents such as 6 splits of cable that transmission 2 connects not hard up or transmission 2 fracture arouses to the serious damage of portal crane that causes and the problem of stopping for a long time improve portal crane trouble-free operation time, improve production efficiency.

The specific structure and the operation principle of the portal crane power supply device and the portal crane of the present invention will be described in detail below through specific embodiments.

In an embodiment, referring to fig. 1 and 2, the transmission device 2 includes a transmission shaft 21, two ends of which are respectively connected to the machine room 1 and the power receiver 3; the synchronous rotation transmission is realized through shaft transmission, the structure is simple, no transmission ratio loss exists, and the transmission is accurate.

Preferably, the transmission 2 further comprises two universal joints 22, which are respectively located at both ends of the transmission shaft 21; one universal joint 22 is respectively connected with the end part of one end of the transmission shaft 21 and the machine room 1; another universal joint 22 is connected with the end part of the other end of the transmission shaft 21 and the current collector 3 respectively, so that the transmission shaft cannot be broken due to fit clearance when the machine room 1 and the current collector 3 rotate synchronously, and the adaptability of the transmission device 2 is improved, thereby improving the adaptability of the power supply device of the gantry crane and improving the power supply stability.

In an embodiment, referring to fig. 1 and fig. 2, the current collector 3 in the embodiment includes a carbon brush device 31; the power supply 7 comprises a slip ring device which is connected and matched with the carbon brush device 31; the gantry crane power supply device and the gantry crane of the embodiment realize continuous power supply through the carbon brush device 31 and the slip ring device, are safe and efficient, and save cost.

In some embodiments, referring to fig. 1 and 2, the synchronization detecting apparatus includes a connecting member 5 and a limiting member 4; the connecting piece 5 is fixedly connected with the machine room 1; the locating part 4 is connected with the connecting piece 5 and the current collector 3 respectively, and when the machine room 1 and the current collector 3 rotate asynchronously, the locating part 4 detects the rotation.

In some embodiments, referring to fig. 1 and 2, the limiting member 4 is a limiting switch, which includes a body 41, a limiting rocker 42; the tail end 43 of the limiting rocker arm 42 is connected with the connecting piece 5; the body 41 is fixedly connected to the current collector 3.

Preferably, the connecting element 5 comprises at least one connecting rod 51, a synchronizing ring 52; one end of the connecting rod 51 is fixedly connected with the machine room 1, and the other end is fixedly connected with the synchronizing ring 52.

The end 43 of the limit rocker 42 is provided with a rotatable pulley. The synchronizer ring 52 is an annular structure, which tends to be horizontally disposed above the current collector 3; a notch 524 matched with the pulley installation is arranged on the arc of the synchronous ring 52; when the machine room 1 and the current collector 3 are out of synchronization, the synchronizing ring 52 touches the limiting rocker arm 42 to act, so that a signal is sent to the electric control system, the tail end 43 of the limiting rocker arm 42 displaces relative to the body 41 and is not blocked, and the detection accuracy is ensured.

In one embodiment, referring to fig. 1 and 2, the synchronizing ring 52 is provided with an opening 523 for the transmission shaft 21 to pass through, and the size of the opening is larger than the diameter of the transmission shaft 21, so as to facilitate the installation of the connecting member 5.

Preferably, the synchronizing ring 52 includes an upper annular plate 522, a lower annular plate 521; the upper annular flat plate 522 and the lower annular flat plate 521 tend to be arranged in parallel; the upper annular flat plate 522 is fixedly connected with the lower annular flat plate 521, and a gap is formed between the upper annular flat plate and the lower annular flat plate; the slot 524 is disposed between the upper annular plate 522 and the lower annular plate 521, which increases the stability of the slot 524 and facilitates adjustment of the position of the slot 524.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A portal crane power supply device comprises a base and a machine room; the computer lab includes consumer and electrical system, its characterized in that includes:

the transmission device is positioned between the machine room and the current collector, is respectively connected with the machine room and the current collector, and enables the current collector and the machine room to synchronously rotate;

the power supply device is fixedly connected with the base, is rotatably and electrically connected with the current collector and is used for supplying power to the current collector;

2. The gantry crane power supply apparatus according to claim 1, wherein the current collector is a carbon brush device; the power supply is a slip ring device which is connected with the carbon brush device in a matching manner.

3. The gantry crane power supply device according to claim 1, wherein the transmission device comprises a transmission shaft, and two ends of the transmission shaft are respectively connected with the machine room and the current collector.

4. The power supply device for the portal crane according to claim 3, wherein the transmission device further comprises two universal joints, which are located at two ends of the transmission shaft and respectively connect the ends of the two ends of the transmission shaft with the machine room and the power receiver.

5. The gantry crane power supply apparatus according to claim 3 or 4, wherein the synchronization detecting means comprises a connecting member, a limiting member; the connecting piece is connected with the machine room; the limiting piece is connected with the connecting piece and the current collector respectively.

6. The power supply device for the portal crane according to claim 5, wherein the limiting member is a limiting switch comprising a limiting rocker arm and a body; the limiting rocker arm is connected with the connecting piece; the body is fixedly connected with the current collector.

7. Portal crane power supply device according to claim 6, characterized in that the connecting piece comprises at least one connecting rod, a synchronizing ring; one end of each connecting rod is fixedly connected with the lower part of the machine room, and the other end of each connecting rod is fixedly connected with the synchronizing ring;

8. The gantry crane power supply apparatus according to claim 7, wherein the synchronizing ring comprises a ring-shaped flat plate which is parallel and fixed up and down; the notches are disposed between the annular flat plates.

9. Portal crane power supply device according to claim 7, characterized in that the synchronizer ring is provided with an opening, the size of which is larger than the diameter of the transmission shaft.

10. A portal crane comprising a portal crane power supply according to any one of claims 1 to 9.