Double-trolley arch crane

Abstract

The utility model discloses a double-trolley arch crane, which relates to the technical field of cranes and particularly comprises a main beam, two trolleys are arranged on one side of the main beam, buffer grooves are formed in two sides of each trolley, damping blocks are fixedly connected in the buffer grooves, one side of each damping block is fixedly connected with a first spring, and the other side of each damping block is fixedly connected with a second spring. And a sliding block is slidably connected to the interior of the buffer groove, one side of the sliding block is fixedly connected with one side of a spring, a buffer block is fixedly connected to one side of the sliding block, and a fixing plate is fixedly connected to the lower portion of the trolley. According to the double-trolley arch crane, the first spring, the sliding block, the buffer block, the fixing plate, the traction motor, the traction cylinder and the alarm are arranged in a matched mode, in the using process, an alarm can be given out when the trolleys are about to collide, and therefore the effect of preventing the trolleys from being damaged is achieved, and the purpose of protecting the trolleys is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a double-trolley arch crane. Background Art

[0002] A crane is a multi-action lifting machine that can lift heavy objects vertically and carry them horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a crane. A bridge crane is a lifting device that is horizontally mounted above a workshop, warehouse, or material yard to lift materials. Because its two ends are located on tall concrete columns or metal brackets, it is shaped like a bridge. The bridge of a bridge crane runs longitudinally along the tracks laid on the elevated structures on both sides, and can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and most numerous type of lifting machine. Although the two trolleys of a double-trolley crane can achieve joint operation, the essence is that the operator controls the two lifting trolleys to complete synchronous movements to ensure safe and stable lifting operations.

[0003] When the existing double-trolley arch crane is in use, the lifting trolley can only rely entirely on the operator's skills and experience when moving on the beam. There is no other structure to help the operator make judgments. The lifting trolleys may collide, causing a certain degree of damage to one of the trolleys. In addition, when some of the lifting trolleys are in use, the lifting trolleys are not at the same level during the lifting of heavy objects, and there will be a large difference in the horizontal force received by the lifting trolley operator. Long-term operation will cause one of the trolleys to wear out during operation, affecting the safe use of the trolley. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a double-trolley arch crane, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a double-trolley arch crane, comprising a main beam, two trolleys are arranged on one side of the main beam, buffer grooves are opened on both sides of the trolley, a damping block is fixedly connected inside the buffer groove, one side of the damping block is fixedly connected to a first spring, a sliding block is slidably connected inside the buffer groove, one side of the sliding block is fixedly connected to one side of the spring, one side of the sliding block is fixedly connected to a buffer block, a fixed plate is fixedly connected under the trolley, one side of the fixed plate is fixedly connected to a traction motor, the output shaft of the traction motor is fixedly connected to a traction cylinder, and a traction rope is arranged on the outer surface of the traction cylinder.

[0008] Optionally, an alarm is provided on one side of the trolley, and an alarm switch is provided inside the buffer tank, and the alarm switch is electrically connected to the alarm through a wire.

[0009] Optionally, a support block is fixedly connected to the bottom of the trolley, a support groove is provided on one side of the support block, a vertical column is rotatably connected to one side of the support block, and a plumb bob is fixedly connected to the bottom of the vertical column.

[0010] Optionally, a fixing ring fixedly connected to the vertical column is provided inside the supporting groove, the fixing ring on the left side is fixedly connected to an infrared transmitter, and the fixing ring on the right side is fixedly connected to an infrared receiver.

[0011] Optionally, a controller is provided on one side of the main beam, and the controller is electrically connected to the infrared transmitter via a wire.

[0012] Optionally, a protective pad is fixedly connected to one side of the buffer block, and the material of the protective pad is rubber.

[0013] The utility model provides a double-trolley arch crane, which has the following beneficial effects:

[0014] 1. This double-trolley arch crane, through the coordinated arrangement of the first spring, the sliding block, the buffer block, the fixed plate, the traction motor, the traction cylinder, and the alarm, can sound an alarm when the trolley is about to collide during use, thereby avoiding damage to the trolley and achieving the purpose of protecting the trolley.

[0015] 2. This double-trolley arch crane, through the coordinated arrangement of a vertical column, a plumb bob, a fixed ring, an infrared transmitter, and an infrared receiver, can adjust the trolleys to the same height as much as possible when needed during use, thereby reducing the error during synchronous operation and achieving the purpose of convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a front view section of the trolley of the utility model;

[0018] Figure 3 This is a schematic structural diagram of a side view of a buffer block portion of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from above.

[0020] In the figure: 1. main beam; 2. trolley; 3. damping block; 4. first spring; 5. sliding block; 6. buffer block; 7. fixed plate; 8. traction motor; 9. traction cylinder; 10. alarm; 11. support block; 12. vertical column; 13. plumb bob; 14. fixing ring; 15. infrared transmitter; 16. infrared receiver. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example 1

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a double-trolley arch crane, comprising a main beam, two trolleys are arranged on one side of the main beam, buffer grooves are opened on both sides of the trolley, a damping block is fixedly connected inside the buffer groove, one side of the damping block is fixedly connected to a first spring, a sliding block is slidably connected inside the buffer groove, one side of the sliding block is fixedly connected to one side of the spring, one side of the sliding block is fixedly connected to the buffer block, a fixed plate is fixedly connected under the trolley, one side of the fixed plate is fixedly connected to a traction motor, the output shaft of the traction motor is fixedly connected to a traction drum, and a traction rope is arranged on the outer surface of the traction drum.

[0024] Optionally, an alarm is provided on one side of the trolley, an alarm switch is provided inside the buffer slot, the alarm switch is electrically connected to the alarm through a wire, and a protective pad is fixedly connected to one side of the buffer block, and the material of the protective pad is rubber.

[0025] When the crane is in use, the trolley 2 moves back and forth on the main beam 1. When the trolley 2 collides during the movement, the fixed plate 7 drives the buffer block 6 to squeeze the first spring 4, and the first spring 4 squeezes the damping block 3 to slow down the trolley 2 and prevent the trolley 2 from directly colliding with other objects.

[0026] Example 2

[0027] See also Figure 2 and Figure 4 The utility model provides a technical solution: a double-trolley arch crane, a support block is fixedly connected to the bottom of the trolley, a support groove is opened on one side of the support block, a vertical column is rotatably connected to one side of the support block, a plumb bob is fixedly connected to the bottom of the vertical column, a fixing ring fixedly connected to the vertical column is arranged inside the support groove, an infrared transmitter is fixedly connected to the fixing ring on the left side, an infrared receiver is fixedly connected to the fixing ring on the right side, a controller is arranged on one side of the main beam, and the controller is electrically connected to the infrared transmitter through a wire.

[0028] The operator controls the trolley 2 to move back and forth on the main beam 1. When the trolleys 2 need to be at the same height, the operator stops one of the trolleys 2 at a suitable height, starts the infrared transmitter 15, and then controls the other trolley 2 to move. During the movement of the trolley 2, the plumb bob 13 drives the vertical column 12 to remain vertically downward, so that the infrared receiver 16 and the infrared transmitter 15 remain horizontal. When the infrared receiver 16 receives the signal, the operator stops moving the trolley 2. At this time, the two trolleys 2 can be ensured to be at the same height, avoiding a large difference in tension when the trolley 2 is used.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double trolley arch crane, comprising a main beam (1), characterized in that: Two trolleys (2) are arranged on one side of the main beam (1), and buffer grooves are provided on both sides of the trolley (2). A damping block (3) is fixedly connected inside the buffer groove, and a first spring (4) is fixedly connected to one side of the damping block (3). A sliding block (5) is slidably connected inside the buffer groove, and one side of the sliding block (5) is fixedly connected to one side of the spring, and one side of the sliding block (5) is fixedly connected to a buffer block (6). A fixing plate (7) is fixedly connected below the trolley (2), and a traction motor (8) is fixedly connected to one side of the fixing plate (7). A traction drum (9) is fixedly connected to the output shaft of the traction motor (8), and a traction rope is arranged on the outer surface of the traction drum (9).

2. A double trolley arch crane according to claim 1, characterized in that: An alarm device (10) is provided on one side of the trolley (2), and an alarm switch is provided inside the buffer tank, the alarm switch being electrically connected to the alarm device (10) via a wire.

3. A double trolley arch crane according to claim 1, characterized in that: A support block (11) is fixedly connected to the bottom of the trolley (2), a support groove is provided on one side of the support block (11), a vertical column (12) is rotatably connected to one side of the support block (11), and a plumb bob (13) is fixedly connected to the bottom of the vertical column (12).

4. A double trolley arch crane according to claim 3, characterized in that: A fixing ring (14) fixedly connected to the vertical column (12) is arranged inside the support groove, an infrared transmitter (15) is fixedly connected to the fixing ring (14) on the left side, and an infrared receiver (16) is fixedly connected to the fixing ring (14) on the right side.

5. A double trolley arch crane according to claim 4, characterized in that: A controller is provided on one side of the main beam (1), and the controller is electrically connected to the infrared transmitter (15) via a wire.

6. A double trolley arch crane according to claim 1, characterized in that: A protective pad is fixedly connected to one side of the buffer block (6), and the material of the protective pad is rubber.

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