Elevator of gantry crane

Abstract

The utility model provides an elevator of a gantry crane, which is applied to the gantry crane and comprises a gantry, a cross beam and a first cylinder body which are connected with each other, the bottom end of the first cylinder body is connected with the cross beam, the top end of the first cylinder body has a first height relative to the cross beam, and a first elevator shaft is arranged in the first cylinder body; a turntable is arranged at the top end of the first barrel; the bottom end of the second barrel body is connected with the top end of the first barrel body, the top end of the second barrel body penetrates through the rotating disc to reach a second height, a second elevator shaft is arranged in the second barrel body, and the first elevator shaft is communicated with the second elevator shaft; the first landing is arranged in the cross beam and communicates with the first elevator shaft; the second landing is arranged in the second elevator shaft and is positioned on the upper surface of the turntable; the lift car is located in the first lift shaft or the second lift shaft. By arranging the lift car, people can move back and forth in the lift shaft, the number of times of climbing the inclined ladder by the people is reduced, and the climbing risk of the people is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator of a portal crane. Background Art

[0002] For cylindrical gantry cranes with larger lifting heights, the driver's cab is arranged at a higher height and the driver needs to take the elevator to go up and down.

[0003] The driver's cab of a current gantry crane (sometimes referred to as a crane in the following description) is generally arranged on the upper surface of the turntable and rotates 360 degrees with the upper structure. The top of the elevator is arranged at the top of the cylinder below the turntable. The driver needs to climb the first inclined ladder from the door hole of the cylinder to reach the circular platform, and then climb the second inclined ladder from the circular platform to reach the driver's cab on the top of the turntable. After taking the elevator, the driver needs to climb two inclined ladders to reach the driver's cab. The driver's labor intensity is high and there are safety risks in the process of climbing the inclined ladder. Utility Model Content

[0004] In view of this, the utility model provides an elevator for a portal crane, which can solve the problems of high labor intensity for the driver and risks in the process of climbing the inclined ladder.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model provides an elevator for a portal crane, which is applied to the portal crane and comprises:

[0007] The gantry comprises a crossbeam and a first cylinder connected to each other, wherein the bottom end of the first cylinder is connected to the crossbeam, the top end of the first cylinder has a first height relative to the crossbeam, the first cylinder is provided with a first elevator shaft passing through the top end and the bottom end of the first cylinder, and the top end of the first cylinder is provided with a turntable;

[0008] a second cylinder, wherein the bottom end of the second cylinder is connected to the top end of the first cylinder, the top end of the second cylinder passes through the turntable to a second height, the interior of the second cylinder has a second elevator shaft, and the first elevator shaft is connected to the second elevator shaft;

[0009] A first floor station is arranged inside the crossbeam and is connected to the first elevator shaft for allowing people to enter and exit;

[0010] A second floor station is arranged in the second elevator shaft and located on the upper surface of the turntable, and is used for people to enter and exit;

[0011] The car is located in the first elevator shaft or the second elevator shaft and is used for moving back and forth between the first floor station and the second floor station.

[0012] In one embodiment of the present invention, the first floor station includes a first door opening, and the first door opening is located at the intersection of the first floor station and the crossbeam.

[0013] In one embodiment of the present invention, the second landing station includes a second door opening, and the second door opening is located on the side wall of the second cylinder.

[0014] In one embodiment of the utility model, the portal crane includes a slewing bearing, the slewing bearing is located at the top end of the first cylinder, and the second cylinder passes through the slewing bearing and is connected to the first cylinder.

[0015] In one embodiment of the utility model, a machine room is provided on the top surface of the turntable, and the top end of the second cylinder passes through the top end of the machine room to the second height.

[0016] In one embodiment of the utility model, a central power collecting device is provided at the top of the second cylinder for supplying power to various mechanisms on the top surface of the turntable.

[0017] In one embodiment of the utility model, a herringbone frame is provided on the turntable, a first end of the central current collecting device is arranged on the top surface of the second cylinder, and a second end of the central current collecting device is connected to the herringbone frame.

[0018] In one embodiment of the utility model, a circular platform is provided on the outer peripheral wall of the first cylinder for personnel to conduct inspections.

[0019] In one embodiment of the utility model, an inclined ladder is provided on the top surface of the circular platform, a first end of the inclined ladder is connected to the top surface of the turntable, and a second end of the inclined ladder is connected to the top surface of the circular platform for allowing personnel to flow between the turntable and the circular platform.

[0020] In one embodiment of the present invention, the door frame further comprises a base arranged on the bottom surface of the crossbeam, for supporting the crossbeam and various mechanisms on the top surface of the crossbeam.

[0021] The above technical solution of the utility model has at least the following beneficial effects:

[0022] The elevator of the portal crane of the embodiment of the utility model realizes the back and forth movement of people in the elevator car in the elevator shaft by setting the second cylinder at the top of the first cylinder and setting the elevator shaft in the first cylinder and the second cylinder. Compared with the traditional portal crane elevator, when the driver needs to climb two inclined ladders from the cylinder to reach the driver's cab, the driver of the utility model can directly reach the driver's cab on the upper surface of the turntable from the bottom of the beam, avoiding climbing the inclined ladder, reducing the number of times people climb the inclined ladder, and reducing the labor intensity of people and the risk of climbing the inclined ladder, which is conducive to improving the safety of people's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic structural diagram of an elevator of a portal crane in some embodiments;

[0024] Figure 2 The present invention is a schematic structural diagram of an elevator of a portal crane according to an embodiment of the present invention.

[0025] Reference numerals:

[0026] Some examples:

[0027] 100. Elevators for portal cranes;

[0028] 110, gantry; 111, crossbeam; 112, first cylinder; 1121, elevator shaft; 113, turntable; 114, round platform;

[0029] 120, first floor station;

[0030] 130, second floor station;

[0031] 140. Car;

[0032] 150. Central current collecting device;

[0033] 160. Inclined ladder;

[0034] 170. Driver's room;

[0035] Embodiments of the utility model:

[0036] 200. Elevators for portal cranes;

[0037] 210, door frame; 211, crossbeam; 212, first cylinder; 2121, first elevator shaft; 213, turntable; 214, slewing bearing; 215, herringbone frame; 216, round platform; 217, base;

[0038] 220, second cylinder; 221, second elevator shaft;

[0039] 230, first floor station;

[0040] 240, second floor station; 241, second doorway;

[0041] 250, car;

[0042] 260, computer room;

[0043] 270. Central current collecting device;

[0044] 280, inclined ladder;

[0045] 290. Driver's cab. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0047] In order to facilitate the understanding of the technical solution of the embodiment of the utility model, the technical problem to be solved by the utility model is described below in conjunction with the accompanying drawings.

[0048] refer to Figure 1 , Figure 1 Schematic diagram of the structure of the elevator 100 of the portal crane of some embodiments is shown. Figure 1 As shown, a central power collector 150 is arranged at the connection between the first cylinder 112 and the turntable 113 on the upper part of the gantry 110, and the central power collector 150 is used to supply power to the rotary mechanism on the upper part of the turntable 113. The elevator shaft 1121 is arranged inside the first cylinder 112 and close to the side of the cylinder wall of the first cylinder 112, that is, the central axis of the elevator shaft 1121 and the central axis of the central power collector 150 are not on the same straight line, so the central power collector 150 can be avoided, which is conducive to ensuring the safety of the power supply process. The first floor station 120 is arranged inside the crossbeam 111 of the gantry 110, and the second floor station 130 is arranged on the upper part of the first cylinder 112. The first floor station 120 and the second floor station 130 correspond to the bottom and top of the elevator shaft 1121, and are used for people to flow up and down. The driver and the staff enter the car 140 from the first floor station 120 in the crossbeam 111. After the car 140 rises to the second floor station 130 in the elevator shaft 1121, the driver and the staff leave the car 140. The driver climbs the first section of the inclined ladder 160 through the door hole opened on the wall of the first cylinder 112 to reach the circular platform 114 on the door frame 110, and then climbs to the upper surface of the turntable 113 via the second section of the inclined ladder 160 on the circular platform 114. The driver enters the driver's cab 170 from the upper surface of the turntable 113. The driver and the staff take the elevator from the bottom of the crossbeam 111 to the upper part of the first cylinder 112. They need to climb two sections of the inclined ladder 160 before they can reach the driver's cab 170. The driver climbs the inclined ladder 160 many times, the labor intensity is high, and there are safety risks when the driver climbs the inclined ladder 160.

[0049] In order to solve the above problems, the present application provides an elevator for a gantry crane, which can reduce the number of times the driver and staff climb the inclined ladder 160, thereby reducing the driver's labor intensity and the risk when climbing the inclined ladder 160.

[0050] The elevator 200 of the portal crane according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0051] refer to Figure 2 , Figure 2 FIG. 2 is a schematic structural diagram of an elevator 200 of a portal crane according to an embodiment of the present invention. Figure 2 As shown, the elevator 200 for a portal crane is applied to a portal crane, and the elevator includes a gantry 210 , a second cylinder 220 , a first floor station 230 , a second floor station 240 and a car 250 .

[0052] The gantry 210 includes a crossbeam 211 and a first cylinder 212 connected to each other. The bottom end of the first cylinder 212 is connected to the crossbeam 211, and the top end of the first cylinder 212 has a first height relative to the crossbeam 211. The first cylinder 212 is provided with a first elevator shaft 2121 that passes through the top end and the bottom end of the first cylinder 212, and a turntable 213 is provided at the top end of the first cylinder 212. The bottom end of the second cylinder 220 is connected to the top end of the first cylinder 212, and the top end of the second cylinder 220 passes through the turntable 213 to a second height. The second cylinder 220 has a second elevator shaft 221 inside, and the first elevator shaft 2121 is connected to the second elevator shaft 221. The first floor station 230 is arranged inside the crossbeam 211 and is connected to the first elevator shaft 2121 for people to enter and exit. The second floor station 240 is arranged in the second elevator shaft 221 and is located on the upper surface of the turntable 213 for people to enter and exit. The car 250 is located in the first elevator shaft 2121 or the second elevator shaft 221 and is used to move back and forth between the first floor station 230 and the second floor station 240.

[0053] In the embodiment of the present utility model, Figure 2As shown, the gantry 210 is the main structure of the crane, including a crossbeam 211 at the bottom and a first cylinder 212 in the middle. A turntable 213 is provided on the upper part of the gantry 210. The crossbeam 211 is used to support the crane, the first cylinder 212 is used to increase the lifting height of the crane, and the turntable 213 is used for the rotation of the crane. The first cylinder 212 is vertically arranged relative to the top surface of the crossbeam 211, and the turntable 213 is located at the top of the first cylinder 212, that is, the crossbeam 211, the first cylinder 212 and the turntable 213 are arranged in sequence from bottom to top, which is conducive to ensuring the stability of the crane gantry 210 structure. The first elevator shaft 2121 is arranged inside the first cylinder 212 and passes through the first cylinder 212. The central axis of the first elevator shaft 2121 and the central axis of the first cylinder 212 are on the same straight line, that is, the length of the first elevator shaft 2121 is the value represented by the first height, which extends the length of the first elevator shaft 2121 and improves the convenience of the elevator. The second cylinder 220 is disposed at the top of the first cylinder 212. The second elevator shaft 221 in the second cylinder 220 is connected to the first elevator shaft 2121 in the first cylinder 212, extending the highest point that people can reach by taking the elevator to the top surface of the turntable 213. In other words, the length of the elevator shaft is the sum of the lengths of the first elevator shaft 2121 and the second elevator shaft 221 in the vertical direction, and further increasing the height of the elevator shaft to the value represented by the second height allows people to take the elevator to reach the top surface of the turntable 213, reducing the number of times people climb the inclined ladder 280.

[0054] The first floor station 230 is a frame-like structure, which is used to provide a stop point for the car 250. The first floor station 230 is located at the lowest point of the first elevator shaft 2121, and the first floor station 230 abuts against the bottom surface of the crossbeam 211, so that people can enter the elevator from the ground or leave the elevator to the ground. The second floor station 240 is a frame-like structure, which is used to provide a stop point for the car 250. The second floor station 240 is located in the second elevator shaft 221, and the second floor station 240 abuts against the upper surface of the turntable 213, so that people can enter the elevator from the turntable 213 or leave the elevator to the upper surface of the turntable 213. The car 250 is a box-like structure, which is used to accommodate people. The car 250 can move up and down along the first elevator shaft 2121 and the second elevator shaft 221. The car 250 can be docked at the first floor station 230 or the second floor station 240, enabling personnel to flow up and down between the first floor station 230 and the second floor station 240, avoiding personnel from climbing the inclined ladder 280, reducing the labor intensity of personnel and the risks of climbing the inclined ladder 280, and improving the safety of personnel operations.

[0055] Compared with the elevator in the prior art, the top of the elevator shaft is provided with the first cylinder 212 near the circular platform 216, and the driver needs to climb the first section of the inclined ladder 280 from the door opening of the side wall of the first cylinder 212 to the circular platform 216, and then climb to the top surface of the turntable 213 through the second section of the inclined ladder 280 on the circular platform 216, resulting in high labor intensity for the driver and safety risks in the process of climbing the inclined ladder 280. In the embodiment of the utility model, by arranging the second cylinder 220 at the top of the first cylinder 212, and arranging the elevator shaft in the first cylinder 212 and the second cylinder 220, the back and forth movement of the personnel in the elevator shaft in the car 250 is realized. The driver can directly reach the driver's room 290 on the upper surface of the turntable 213 from the bottom of the crossbeam 211, avoiding climbing the inclined ladder 280, reducing the number of times the personnel climb the inclined ladder 280, and reducing the labor intensity of the personnel and the risk of climbing the elevator, which is conducive to improving the safety of personnel operations.

[0056] In one embodiment of the present invention, Figure 2 As shown, the first floor station 230 includes a first doorway (not shown). The first doorway is square and is located at the intersection of the first floor station 230 and the crossbeam 211, that is, the first doorway is located on the side of the crossbeam. A ladder is provided outside the first doorway leading to the ground, so that people can enter or leave the first floor station 230.

[0057] In one embodiment of the present invention, Figure 2 As shown, the second floor station 240 includes a second door opening 241. The second door opening 241 is square and is located on the side wall of the second cylinder 220. The bottom surface of the second door opening 241 is flush with the upper surface of the turntable 213, which is convenient for people to enter or leave the second floor station 240.

[0058] In one embodiment of the present invention, Figure 2 As shown, the portal crane includes a slewing bearing 214, which is annular. The slewing bearing 214 is located at the top of the first cylinder 212. The second cylinder 220 penetrates the slewing bearing 214 and is connected to the first cylinder 212, that is, the slewing bearing 214 is a connecting piece between the portal 210 and the turntable 213, which is convenient for supporting the rotation of the slewing structure on the upper part of the crane.

[0059] In one embodiment of the present invention, Figure 2 As shown, a machine room 260 is provided on the top surface of the turntable 213 for accommodating the reel device of the elevator and providing power for the movement of the car 250. The top of the second cylinder 220 passes through the top of the machine room 260 to the second height, that is, the height of the second cylinder 220 is higher than the height of the machine room 260, so as to maintain the stability of the elevator operation.

[0060] In one embodiment of the present invention, Figure 2As shown, a central power collecting device 270 is provided at the top of the second cylinder 220 for supplying power to the mechanisms on the top surface of the turntable 213, so as to ensure the conduction function of the cable from the fixed structure at the bottom of the crane to the rotating structure at the top.

[0061] In one embodiment of the present invention, Figure 2 As shown, a herringbone frame 215 is provided on the turntable 213 to ensure the stability of the portal crane. The first end of the central power collection device 270 is arranged on the top surface of the second cylinder 220, and the second end of the central power collection device 270 is connected to the herringbone frame 215, so as to supply power to various mechanisms of the rotating structure on the upper part of the crane.

[0062] In one embodiment of the present invention, Figure 2 As shown, a circular platform 216 is provided on the outer peripheral wall of the first cylinder 212 for personnel to inspect. The circular platform 216 is annularly sleeved on the outer periphery of the first cylinder 212 to facilitate accurate scheduling of crane operations.

[0063] In one embodiment of the present invention, Figure 2 As shown, the top surface of the circular platform 216 is provided with an inclined ladder 280. The first end of the inclined ladder 280 (i.e. Figure 2 The top of the inclined ladder 280 is connected to the top surface of the rotating disk 213, and the second end of the inclined ladder 280 (i.e. Figure 2 The bottom of the rotating disk 213 is connected to the top surface of the circular platform 216 for personnel to flow between the rotating disk 213 and the circular platform 216. Personnel can climb the inclined ladder 280 from the top surface of the rotating disk 213 to the circular platform 216 to observe the crane operation, which helps to improve the crane operation efficiency.

[0064] In one embodiment of the present invention, Figure 2 As shown, the gantry 210 further includes a base 217 disposed on the bottom surface of the cross beam 211, for supporting the cross beam 211 and various mechanisms on the top surface of the cross beam 211. The base 217 can be two legs distributed on both sides of the cross beam 211, which is conducive to ensuring the overall stability of the crane.

[0065] The working principle of the elevator 200 of the portal crane according to the embodiment of the utility model will be described below in conjunction with its structure.

[0066] When a person needs to go to the driver's cab 290, the person enters the car 250 parked at the first floor station 230 from the first doorway, and the reel device in the machine room 260 drives the car 250 to move from the bottom end of the first elevator shaft 2121 to the top end of the second elevator shaft 221. The car 250 stops at the second floor station 240, and the person enters the driver's cab 290 on the upper surface of the turntable 213 from the second doorway 241. When a person needs to go to the ground, the person walks from the turntable 213 to the second doorway 241 and enters the car 250 parked at the second floor station 240. The reel device in the machine room 260 drives the car 250 to move from the top end of the second elevator shaft 221 to the bottom end of the first elevator shaft 2121. The car 250 stops at the first floor station 230, and the personnel descend to the ground from the beam 211 through the ladder outside the first doorway, so that the personnel can move back and forth between the crane beam 211 and the upper surface of the turntable 213.

[0067] In summary, the elevator 200 of the portal crane of the embodiment of the utility model realizes the back and forth movement of personnel in the elevator car 250 in the elevator shaft by arranging the second cylinder 220 at the top of the first cylinder 212 and arranging the elevator shaft in the first cylinder 212 and the second cylinder 220. The driver can directly reach the driver's room 290 on the upper surface of the turntable 213 from the bottom of the crossbeam 211, avoiding climbing the inclined ladder 280, reducing the number of times the personnel climb the inclined ladder 280, and reducing the labor intensity of the personnel and the risk of climbing the inclined ladder 280, which is conducive to improving the safety of personnel operations.

[0068] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0069] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An elevator for a portal crane, applied to a portal crane, characterized in that: include: The gantry comprises a crossbeam and a first cylinder connected to each other, wherein the bottom end of the first cylinder is connected to the crossbeam, the top end of the first cylinder has a first height relative to the crossbeam, the first cylinder is provided with a first elevator shaft passing through the top end and the bottom end of the first cylinder, and the top end of the first cylinder is provided with a turntable; a second cylinder, wherein the bottom end of the second cylinder is connected to the top end of the first cylinder, the top end of the second cylinder passes through the turntable to a second height, the second cylinder has a second elevator shaft inside, and the first elevator shaft is connected to the second elevator shaft; A first floor station is arranged inside the crossbeam and communicated with the first elevator shaft for allowing people to enter and exit; A second landing station is arranged in the second elevator shaft and located on the upper surface of the turntable, and is used for people to enter and exit; The car is located in the first elevator shaft or the second elevator shaft and is used for moving back and forth between the first landing station and the second landing station.

2. The elevator of the portal crane according to claim 1, characterized in that: The first landing comprises a first door opening, and the first door opening is located at the junction of the first landing and the crossbeam.

3. The elevator of the portal crane according to claim 1, characterized in that: The second floor station includes a second door opening, and the second door opening is located on the side wall of the second cylinder.

4. The elevator of the portal crane according to claim 2, characterized in that: The portal crane comprises a slewing bearing, wherein the slewing bearing is located at the top end of the first cylinder, and the second cylinder passes through the slewing bearing and is connected to the first cylinder.

5. The elevator of the portal crane according to claim 1, characterized in that: A machine room is provided on the top surface of the turntable, and the top end of the second cylinder passes through the top end of the machine room to the second height.

6. The elevator of the portal crane according to claim 5, characterized in that: A central power collecting device is provided at the top of the second cylinder for supplying power to various mechanisms on the top surface of the turntable.

7. The elevator of the portal crane according to claim 6, characterized in that: The rotating disk is provided with a herringbone frame, the first end of the central current collecting device is arranged on the top surface of the second cylinder, and the second end of the central current collecting device is connected to the herringbone frame.

8. The elevator of the portal crane according to claim 1, characterized in that: A circular platform is provided on the outer peripheral wall of the first cylinder for personnel to conduct inspections.

9. The elevator of the portal crane according to claim 8, characterized in that: An inclined ladder is provided on the top surface of the circular platform, a first end of the inclined ladder is connected to the top surface of the turntable, and a second end of the inclined ladder is connected to the top surface of the circular platform, for allowing personnel to flow between the turntable and the circular platform.

10. The elevator of a portal crane according to claim 1, characterized in that: The door frame also includes a base arranged on the bottom surface of the crossbeam, which is used to support the crossbeam and various mechanisms on the top surface of the crossbeam.

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