阅读说明：本技术 一种履带式起重机门型架 (Gantry frame of crawler crane ) 是由 赵洋 于 2019-11-25 设计创作，主要内容包括：本发明公开了一种履带式起重机门型架,包括履带床、门型架一以及门型架二,所述履带床一侧壁上内嵌有转轴,所述转轴有两个,所述转轴一侧通过轴承转动连接有所述门型架一,所述转轴另一侧通过轴承转动连接有所述门型架二。有益效果在于：本发明通过设置门型架一和门型架二,使得装置可同时进行双吊钩的吊升作业,大大的提高了工作效率,有利于大批量起重任务的快速完成。(The invention discloses a portal frame of a crawler crane, which comprises a crawler bed, a portal frame I and a portal frame II, wherein rotating shafts are embedded in the side wall of the crawler bed, the number of the rotating shafts is two, one side of each rotating shaft is rotatably connected with the portal frame I through a bearing, and the other side of each rotating shaft is rotatably connected with the portal frame II through a bearing. Has the advantages that: according to the invention, the first portal frame and the second portal frame are arranged, so that the device can simultaneously carry out lifting operation of the double lifting hooks, the working efficiency is greatly improved, and the quick completion of large-batch lifting tasks is facilitated.)

1. A gantry of a crawler crane, comprising: including track bed (1), door type frame one (2) and door type frame two (3), it has pivot (13) to embed on track bed (1) a lateral wall, pivot (13) have two, pivot (13) one side is rotated through the bearing and is connected with door type frame one (2), pivot (13) opposite side is rotated through the bearing and is connected with door type frame two (3).

2. A crawler crane gantry according to claim 1, wherein: the top welding of track bed (1) has stand (5), stand (5) have two sets ofly, stand (5) top is rotated through the bearing and is moved and be connected with pulley (8).

3. A crawler crane gantry according to claim 2, wherein: the top of the crawler bed (1) is close to one side of the upright post (5) and is fixedly provided with a first hoisting drum (6) through a clamping groove, the top of the crawler bed (1) is close to the other side of the upright post (5) and is fixedly provided with a second hoisting drum (7) through a clamping groove, and hoisting ropes (10) are wound on the first hoisting drum (6) and the second hoisting drum (7).

4. A crawler crane gantry according to claim 3, wherein: the top parts of the first door-shaped frame (2) and the second door-shaped frame (3) are rotatably connected with a second pulley (9), and the lifting rope (10) is nested on the first pulley (8) and the second pulley (9).

5. A crawler crane gantry according to claim 4, wherein: a wire winding device (14) is nested on the lifting rope (10), and one end of the lifting rope (10) is connected with a lifting hook (4) in a sliding mode.

6. A crawler crane gantry according to claim 5, wherein: the top of the crawler bed (1) is close to the first hoisting cylinder (6) and one side of the second hoisting cylinder (7) is welded with a fixing block (12), a hydraulic rod (11) is rotatably connected to one side wall of the fixing block (12), and the hydraulic rod (11) is connected with the first portal frame (2) and the second portal frame (3) through bolts.

Technical Field

The invention relates to the technical field of crawler cranes, in particular to a portal frame of a crawler crane.

Background

A crawler crane is a self-propelled crane for high-rise building construction. The crane is a movable arm rotating crane which runs by using a crawler. The crawler belt has large grounding area, good trafficability characteristic and strong adaptability, can travel with load, and is suitable for hoisting operation of building sites. Can do various operations such as digging, ramming and piling. However, the long-distance transfer construction site needs other vehicles for carrying due to the slow walking speed.

The existing portal frame of the crawler crane only has one group of lifting hooks, the working mode is single, only one group of objects can be lifted at a single time, the efficiency is low, and the working speed is low for large batches of goods.

Disclosure of Invention

Technical problem to be solved

In order to overcome the defects of the prior art, the portal frame of the crawler crane is provided, and the problems that the portal frame of the crawler crane only has one group of lifting hooks, the working mode is single, only one group of objects can be lifted at a time, the efficiency is low, and the working speed is low for large-batch goods are solved.

(II) technical scheme

The invention is realized by the following technical scheme: the invention provides a portal frame of a crawler crane, which comprises a crawler bed, a portal frame I and a portal frame II, wherein two rotating shafts are embedded in the side wall of the crawler bed, one side of each rotating shaft is rotatably connected with the portal frame I through a bearing, and the other side of each rotating shaft is rotatably connected with the portal frame II through a bearing.

By adopting the technical scheme, the inclination angles of the first portal frame and the second portal frame can be adjusted on the crawler bed through the rotating shaft, and the first portal frame and the second portal frame are in a double-station working mode.

Furthermore, the top of the crawler bed is welded with two groups of upright columns, and the tops of the upright columns are rotatably connected with a first pulley through bearings.

By adopting the technical scheme, the upright post is used for fixing and supporting the lifting line of the equipment.

Furthermore, a first hoisting drum is fixed to one side, close to the upright post, of the top of the crawler bed through a clamping groove, a second hoisting drum is fixed to the other side, close to the upright post, of the top of the crawler bed through a clamping groove, and hoisting ropes are wound on the first hoisting drum and the second hoisting drum.

By adopting the technical scheme, the first hoisting drum and the second hoisting drum are controlled by the same motor, so that synchronous hoisting operation is realized

Furthermore, the top parts of the first door-shaped frame and the second door-shaped frame are rotatably connected with a second pulley, and the lifting rope is nested on the first pulley and the second pulley.

Furthermore, a wire rewinding device is nested on the lifting rope, and one end of the lifting rope is connected with a lifting hook in a sliding mode.

By adopting the technical scheme, the lifting rope is a metal reinforcing steel bar, and the wire rewinding device is used for limiting the position of the lifting rope, so that the phenomenon of knotting of the lifting rope is avoided.

Furthermore, fixed blocks are welded on one sides, close to the first hoisting cylinder and the second hoisting cylinder, of the top of the crawler bed, a hydraulic rod is rotatably connected to one side wall of each fixed block, and the hydraulic rod is connected with the first portal frame and the second portal frame through bolts.

By adopting the technical scheme, the fixed block is used for fixedly supporting the hydraulic rod, and the hydraulic rod can drag the first door-shaped frame and the second door-shaped frame to rotate along the rotating shaft so as to adjust the inclination angles of the first door-shaped frame and the second door-shaped frame.

(III) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

in order to solve the problems that the existing crawler crane only has one group of lifting hooks on a portal frame, the working mode is single, only one group of objects can be lifted once, the efficiency is low, and the working speed is low for large-batch cargos, the device can simultaneously lift double lifting hooks by arranging the portal frame I and the portal frame II, so that the working efficiency is greatly improved, and the large-batch hoisting task can be rapidly completed.

Drawings

FIG. 1 is a schematic structural view of a crawler crane gantry of the present invention;

FIG. 2 is a schematic view of the relationship between the track bed and the rotating shaft in the gantry of the crawler crane according to the present invention;

FIG. 3 is a left side view of a crawler crane gantry of the present invention.

The reference numerals are explained below:

1. a crawler bed; 2. a first portal frame; 3. a second door-shaped frame; 4. a hook; 5. a column; 6. a first hoisting drum; 7. a second hoisting drum; 8. a first pulley; 9. a second pulley; 10. a lifting rope; 11. a hydraulic lever; 12. a fixed block; 13. a rotating shaft; 14. a wire-rewinding device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to 3, the gantry of the crawler crane in the embodiment includes a crawler bed 1, a first gantry 2, and a second gantry 3, a rotating shaft 13 is embedded in a side wall of the crawler bed 1, two rotating shafts 13 are provided, one side of the rotating shaft 13 is rotatably connected with the first gantry 2 through a bearing, the other side of the rotating shaft 13 is rotatably connected with the second gantry 3 through a bearing, the first gantry 2 and the second gantry 3 can adjust an inclination angle on the crawler bed 1 through the rotating shaft 13, and the first gantry 2 and the second gantry 3 are in a double-station working mode.

The top welding of track bed 1 has stand 5, and stand 5 has two sets ofly, and 5 tops of stand rotate through the bearing and are connected with pulley 8, and stand 5 is used for the line that lifts with fixed and support equipment.

A first hoisting drum 6 is fixed to one side, close to the upright post 5, of the top of the crawler bed 1, a second hoisting drum 7 is fixed to the other side, close to the upright post 5, of the top of the crawler bed 1, a hoisting rope 10 is wound on the first hoisting drum 6 and the second hoisting drum 7, and the first hoisting drum 6 and the second hoisting drum 7 are controlled by the same motor to achieve synchronous hoisting operation.

The top parts of the first door-shaped frame 2 and the second door-shaped frame 3 are rotatably connected with a second pulley 9, a lifting rope 10 is nested on the first pulley 8 and the second pulley 9, and the lifting rope 10 is a metal reinforcing steel bar.

The wire rewinding device 14 is nested on the lifting rope 10, one end of the lifting rope 10 is connected with the lifting hook 4 in a sliding mode, the wire rewinding device 14 is used for limiting the position of the lifting rope 10, and the phenomenon that the lifting rope 10 is knotted is avoided.

Fixed blocks 12 are welded on one sides, close to the first hoisting cylinder 6 and the second hoisting cylinder 7, of the top of the crawler bed 1, hydraulic rods 11 are rotatably connected to one side wall of each fixed block 12, the hydraulic rods 11 are connected with the first door-shaped frame 2 and the second door-shaped frame 3 through bolts, the fixed blocks 12 are used for fixedly supporting the hydraulic rods 11, the hydraulic rods 11 can drag the first door-shaped frame 2 and the second door-shaped frame 3 to rotate along a rotating shaft 13, and the inclination angles of the first door-shaped frame 2 and the second door-shaped frame 3 are adjusted.

The specific implementation process of this embodiment is as follows: firstly install crawler 1 on crawler travel mechanism, and with hoist section of thick bamboo 6 and the work of hoist section of thick bamboo two 7 access track machine's motor output end, can normal use device, the user controls hoist section of thick bamboo 6 and the work of hoist section of thick bamboo two 7 through the control room operating lever, lifting rope 10 slides under the support of pulley one 8 and pulley two 9, it rises or descends to drive lifting hook 4 and plays a jack-up article, two sets of articles of device jack-up simultaneously can be realized to two sets of lifting hooks 4 on door type frame one 2 and the door type frame two 3, great improvement the efficiency of jack-up work, be favorable to big batch quick completion of jack-up task, the input time of manpower and materials has been saved, and then the cost has been saved.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.