Double-girder structure of gantry crane

Abstract

The utility model relates to the field of gantry cranes, in particular to a double-main-beam structure of a gantry crane, which comprises a double-main-beam body, a crane is mounted on the upper portion of the double-main-beam body through a guide rail for the crane, one end of the crane is connected with a plurality of supporting arms through a mounting frame, and a guide rail cleaning roller is rotatably mounted on one side of the upper portion of each supporting arm through a rotating seat. One side of the guide rail cleaning roller is in driving connection with a driving gear through a transmission chain, and one end of the driving gear is installed in the guide rail for the crane through a connecting frame and is in meshed connection with a rack arranged in the guide rail for the crane. According to the guide rail for the crane, when the crane advances through the guide rail for the crane, the guide roller cleaning roller connected with the crane rotates in the guide rail for the crane under the driving action of an internal gear, and rotates along with the movement of the crane, so that sundries and garbage in the guide rail can be effectively removed in the advancing process, the cleanliness of the guide rail is ensured, and the service life of the guide rail is prolonged. The crane operation stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gantry cranes, in particular to a double main beam structure of a gantry crane. Background Art

[0002] Gantry cranes are mainly used for loading and unloading of outdoor cargo yards, material yards, and bulk cargo. Gantry cranes are widely used due to their high site utilization, large operating range, and strong versatility. Gantry cranes are divided into single-girder and double-girder types according to the main girder structure.

[0003] At present, although the traditional double-girder gantry can meet the basic production and use needs, in actual use, since the guide rails between the traditional double main beams are directly exposed and directly connected to the crane, in the subsequent use process, when branches, dust and other garbage fall on the slide rails, the pulleys of the double-girder gantry crane will directly press on them, which may hinder the movement of the double-girder gantry crane, thereby affecting the operating efficiency and causing installation risks. Therefore, a double-girder structure for a gantry crane is urgently needed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a double main beam structure of a gantry crane.

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

[0006] A double-main-beam structure of a gantry crane comprises a double-main-beam body, a crane is installed on the upper part of the double-main-beam body via a crane guide rail, one end of the crane is connected to a plurality of support arms via a mounting frame, a guide rail cleaning roller is rotatably installed on one side of the upper part of the support arm via a rotating seat, one side of the guide rail cleaning roller is connected to a driving gear via a transmission chain, one end of the driving gear is installed inside the crane guide rail via a connecting frame, and is meshedly connected with a rack arranged inside the crane guide rail.

[0007] In addition, a preferred structure is that racks are fixedly mounted on both side top walls inside the guide rail for the crane, and one side of the rack is meshedly connected with the tooth groove of the driving gear.

[0008] In addition, a preferred structure is that a connecting frame is fixedly installed in the middle part of the support arm through a mounting frame, the bottom end of the connecting frame extends into the guide rail for the crane, and a shaft body is rotatably installed in the middle part of the connecting frame, driving gears are fixedly installed at both ends of the shaft body, and a gear shaft 1 is provided at one end of the driving gear located on one side.

[0009] In addition, the preferred structure is that the gear shaft one is fixedly installed on one side of the driving gear, and a transmission chain is wrapped around the gear shaft one through tooth groove engagement, and the other end of the transmission chain extends out of the upper part of the crane guide rail and is connected to the gear two arranged on one side of the rotating seat.

[0010] In addition, a preferred structure is that the rotating seat is fixedly installed on one side of the support arm, and a gear 2 is rotatably installed on the inner side of the rotating seat, a transmission chain is wrapped around the gear 2, and a guide rail cleaning roller is fixedly installed in the middle of the gear 2.

[0011] In addition, a preferred structure is that an arc-shaped baffle is installed in the middle of the mounting frame, and one side of the arc-shaped baffle extends into the guide rail for the crane.

[0012] In addition, a preferred structure is that a plurality of rollers are installed on the bottom wall of the support arm.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, when the crane travels through the crane guide rail, the guide roller cleaning roller connected to the crane is driven by the internal gear, and the guide roller cleaning roller rotates in the crane guide rail and rotates as the crane moves, thereby effectively clearing away debris and garbage in the guide rail during travel, thereby ensuring the cleanliness of the guide rail and improving the operating stability of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of a double main beam structure of a gantry crane proposed in the utility model;

[0016] Figure 2 A schematic diagram of a cleaning structure of a double main beam structure of a gantry crane proposed in the utility model;

[0017] Figure 3 It is a schematic plan view of a cleaning structure of a double main beam structure of a gantry crane proposed in the utility model;

[0018] Figure 4 The utility model provides a schematic diagram of the guide rail cleaning roller driving structure of the double main beam structure of the gantry crane.

[0019] In the figure: 1 double main beam body, 2 guide rails for crane, 3 crane, 4 guide rail cleaning roller, 41 rotating seat, 5 mounting frame, 6 support arm, 7 arc baffle, 8 roller, 9 rack, 10 connecting frame, 11 driving gear, 12 gear one, 13 transmission chain, 14 gear two. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figure 1-4 A double-main-beam structure of a gantry crane comprises a double-main-beam body 1, a crane 3 is installed on the upper part of the double-main-beam body 1 through a crane guide rail 2, one end of the crane 3 is connected to a plurality of support arms 6 through a mounting frame 5, a guide rail cleaning roller 4 is rotatably installed on one side of the upper part of the support arm 6 through a rotating seat 41, one side of the guide rail cleaning roller 4 is driven and connected to a driving gear 11 through a transmission chain 13, one end of the driving gear 11 is installed inside the crane guide rail 2 through a connecting frame 10, and is meshed and connected with a rack 9 arranged inside the crane guide rail 2.

[0022] Furthermore, racks 9 are fixedly mounted on both top walls of the crane guide rail 2 , and one side of the rack 9 is meshedly connected with the driving gear 11 .

[0023] Furthermore, a connecting frame 10 is fixedly installed in the middle of the support arm 6 through a mounting frame, the bottom end of the connecting frame 10 extends into the guide rail 2 for the crane, and a shaft is rotatably installed in the middle of the connecting frame 10, and driving gears 11 are fixedly installed at both ends of the shaft, and a gear shaft 12 is provided at one end of the driving gear 11 on one side.

[0024] Furthermore, gear shaft 12 is fixedly mounted on one side of the driving gear 11, and a transmission chain 13 is wrapped around the gear shaft 12 through tooth-groove engagement, and the other end of the transmission chain 13 extends out of the upper part of the crane guide rail 2 and is transmission-connected to gear 2 14 arranged on one side of the rotating seat 41.

[0025] Furthermore, the rotating seat 41 is fixedly installed on one side of the support arm 6, and a gear 2 14 is rotatably installed inside the rotating seat 41, a transmission chain 13 is wrapped around the gear 2 14, and a guide rail cleaning roller 4 is fixedly installed in the middle of the gear 2 14.

[0026] Furthermore, an arc-shaped baffle plate 5 is installed in the middle of the mounting frame 5 , and one side of the arc-shaped baffle plate 5 extends into the guide rail 2 for the crane.

[0027] Furthermore, a plurality of rollers 8 are installed on the bottom wall of the support arm 6 .

[0028] In the present embodiment, a crane guide rail 2 is provided on the upper part of the double main beam body 1, and a rack 9 structure for driving is still provided on the inner wall of the guide rail. In actual use, the crane 3 realizes the traveling function through the crane guide rail 2. At the same time, during the movement of the crane 3, the crane 3 will drive the mounting frame 5 and the support arm 6 to move, and a driving gear 11 is provided in the middle of the support arm 6. The driving gear 11 will mesh with the rack 9 provided on the inner wall of the crane guide rail 2 during the movement, and realize the rotation function through the rack 9. Since one side of the driving gear 11 is connected to a gear 12, the gear 12 rotates with the driving gear 11. At this time, the gear 12 drives the gear 2 14 on the other side to rotate through the transmission chain 13. The gear 2 14 rotates on the rotating seat 41. A guide rail cleaning roller 4 is provided in the rotating seat 41. One end of the guide rail cleaning roller 4 is fixedly connected to the gear 2 14, and the other end is rotatably installed on the inner wall of the rotating seat 41.

[0029] Therefore, under the rotation of the driving gear 11, the driving gear 11 drives the gear 1 12 to rotate, the gear 1 12 drives the gear 2 14 to rotate through the transmission chain 13, and the gear 2 14 drives the guide rail cleaning roller 4 to rotate.

[0030] Among them, in actual use, the arc-shaped baffle 7 arranged in the middle of the mounting frame 5 extends into the interior of the crane guide rail 2, so that when the guide rail cleaning roller 4 rotates in the opposite direction, that is, when it rotates toward one side of the crane 3, it can effectively prevent garbage from entering the bottom of the crane 3.

[0031] In actual use, as the crane 3 repeatedly moves laterally, the guide rail cleaning roller 4 continuously changes its rotation direction, thereby being able to thoroughly clean the guide rail 2 for the crane.

[0032] In the actual use process, the roller 8 ensures the travel stability of the support arm 6.

[0033] In the actual use process, guide rail cleaning rollers 4 are installed at the corresponding guide rail connections on both sides of the crane 3 to achieve a cleaning effect.

[0034] In the utility model, when the crane 3 travels through the crane guide rail 2, the guide roller cleaning roller 4 connected to the crane 3 is driven by the internal gear, and the guide roller cleaning roller 4 rotates in the crane guide rail 2 and rotates as the crane 3 moves, thereby effectively removing debris and garbage in the guide rail during the travel process, ensuring the cleanliness of the guide rail and improving the operation stability of the crane.

[0035] 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 main beam structure of a gantry crane, comprising a double main beam body (1), characterized in that: A crane (3) is installed on the upper part of the double main beam body (1) via a crane guide rail (2); one end of the crane (3) is connected to a plurality of support arms (6) via a mounting frame (5); a guide rail cleaning roller (4) is rotatably installed on one side of the upper part of the support arm (6) via a rotating seat (41); one side of the guide rail cleaning roller (4) is connected to a driving gear (11) via a transmission chain (13); one end of the driving gear (11) is installed inside the crane guide rail (2) via a connecting frame (10) and is meshedly connected to a rack (9) provided inside the crane guide rail (2).

2. The double main beam structure of a gantry crane according to claim 1, characterized in that: Racks (9) are fixedly mounted on both top walls of the crane guide rail (2), and one side of the rack (9) is meshedly connected with the tooth groove of the driving gear (11).

3. The double main beam structure of a gantry crane according to claim 1, characterized in that: A connecting frame (10) is fixedly mounted on the middle of the support arm (6) via a mounting frame, the bottom end of the connecting frame (10) extends into the crane guide rail (2), and a shaft body is rotatably mounted on the middle of the connecting frame (10), a driving gear (11) is fixedly mounted on both ends of the shaft body, and a gear shaft (12) is provided at one end of the driving gear (11) located on one side.

4. The double main beam structure of a gantry crane according to claim 3, characterized in that: The gear shaft one (12) is fixedly mounted on one side of the driving gear (11), and a transmission chain (13) is wrapped around the gear shaft one (12) through tooth-groove meshing, and the other end of the transmission chain (13) extends out of the upper part of the crane guide rail (2) and is transmission-connected to a gear shaft two (14) arranged on one side of the rotating seat (41).

5. The double main beam structure of a gantry crane according to claim 4, characterized in that: The rotating seat (41) is fixedly mounted on one side of the support arm (6), and a second gear (14) is rotatably mounted on the inner side of the rotating seat (41), a transmission chain (13) is wrapped around the second gear (14), and a guide rail cleaning roller (4) is fixedly mounted in the middle of the second gear (14).

6. The double main beam structure of a gantry crane according to claim 1, characterized in that: An arc-shaped baffle (7) is installed in the middle of the mounting frame (5), and one side of the arc-shaped baffle (7) extends into the guide rail (2) for the crane.

7. The double main beam structure of a gantry crane according to claim 1, characterized in that: A plurality of rollers (8) are mounted on the bottom wall of the support arm (6).

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