CN103303806B - A kind of tight space track-mounted electric lifting appliance - Google Patents

Abstract

The invention discloses a crawler-type electric hoisting device in a compact space. A platform (2) is provided on the top of the crawler chassis (1). Connected with a hydraulic motor, the platform (2) is equipped with a lifting main frame and a drive system, the bottom of the hand-operated turntable (3) is located on the platform (2) and connected to the platform (2) in rotation, and the bottom of the lower boom (4) One end is located on the upper part of the hand-operated turntable (3), the other end of the lower boom (4) is rotationally connected to the upper boom (5), the electric pressure pump (7) is connected to the hydraulic support rod (6), and the diesel engine and hydraulic pressure The oil pump of the pumping station (8) is connected by a transmission, and the output end of the oil pump is connected to the hydraulic motor through the hydraulic oil pipe (9). Rope (12) is connected with lifting hook (13) behind the block of pulleys successively.

Description

A compact space crawler electric lifting device

technical field

The invention relates to a crawler type electric hoisting device in a compact space.

Background technique

Most of the current cranes are composed of a truck cab, a crane cab, a large hoisting main arm system, a large winch lifting system, a complex hydraulic system, and a large-area outrigger system. The chassis is composed of tires or crawlers. The principle of action is to start the hydraulic pump, and the generated power is controlled by the operating lever to move the boom, outriggers, etc., and then drive the hoist through the hydraulic system to drive the wire rope on the pulley block to lift or move heavy objects. The defects of this kind of crane are: It requires a large space when parking and using, and often in a small space (such as around live equipment in a substation) it is often necessary to move medium and large mechanical equipment, and it is inconvenient to use a crane because it cannot be used for operations.

Contents of the invention

The invention provides a crawler-type electric hoisting device in a compact space, which can not only improve the construction efficiency, but also improve the safety factor of people and equipment and the power supply reliability of the system.

The present invention adopts the following technical solutions: a crawler-type electric lifting device in a compact space, which includes a lifting main frame, a lifting system, a driving system and a crawler walking system. The crawler walking system includes a crawler chassis, and a There is a platform, and the crawler chassis is equipped with tensioning wheels, traveling wheels and driving wheels. The crawler chassis is supported and positioned through the tensioning wheels, traveling wheels and driving wheels. A hydraulic motor is connected to the driving wheels, and the platform is equipped with a lifting main frame. and a drive system, the lifting main frame includes a hand-operated turntable, a lower arm and an upper arm, the bottom of the hand-operated turntable is located on the platform and connected to the platform in rotation, and one end of the lower arm is located on the upper part of the hand-operated turntable, The other end of the lower boom is rotationally connected to the upper boom. The drive system includes a driving system and an electric pressure pump. A hydraulic support rod is provided between the upper boom and the lower boom. The electric pressure pump and the hydraulic support rod are Transmission connection, start the electric pressure pump to drive the upper boom to rise through the hydraulic support rod. The driving walking system includes a diesel engine and a hydraulic pump station. The diesel engine and the oil pump of the hydraulic pump station are connected by transmission. The motor is connected, and a control valve is provided on the hydraulic oil pipe. The lifting system includes an electric hoist and a pulley block. The pull rope of the electric winch of the electric hoist passes through the pulley block in turn and is connected with a lifting hook. The electric hoist drives the lifting hook to rise or fall.

The other end of the lower boom is rotationally connected with the upper boom through a hinge. The pulley block includes pulley Ⅰ, pulley Ⅱ and pulley Ⅲ, pulley Ⅰ is set on the lower boom, pulley Ⅱ is the bottom of the upper boom, pulley Ⅲ is located on the top of the upper boom, the pull rope of the electric winch passes through pulley Ⅰ, pulley Ⅱ and pulley Ⅲ are connected with lifting hook. One side of the platform at the top of the crawler chassis is provided with a supporting foot, the supporting foot includes a cross bar and a longitudinal bar, one end of the cross bar is connected with the platform, the other end of the cross bar is connected with the top of the longitudinal bar, and the bottom of the longitudinal bar is provided with There are swivel feet. The lower boom and the upper boom are aluminum alloy tubes.

The present invention has the following beneficial effects: after adopting the above technical scheme, the hydraulic lifting system of the present invention has strong power, simple oil circuit, flexible, safe and reliable driving system, and the whole device is compact in appearance and large in lifting force, even in a narrow space It can also work safely on uneven ground. When the device is put into use, only 2-3 people can successfully lift medium-sized electrical equipment on a 3-meter-high bracket within 2 tons! Such as 110KV voltage transformer weighing about 600KG, 110KV current transformer weighing about 800KG, and small distribution transformer weighing about 800KG. It is suitable for the reconstruction, expansion, new construction and emergency repair of power construction projects. It can save 1/3 of the hoisting cost of the annual power construction project, increase the construction efficiency by 2-3 times, and further improve the safety factor of people and equipment and the reliability of power supply of the system.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

In Fig. 1, the present invention provides a kind of compact space crawler-type electric hoisting device, and it comprises hoisting main frame, hoisting system, driving system and crawler belt travel system, described crawler belt travel system comprises crawler chassis 1, on crawler chassis 1 The top of the platform is provided with a platform 2, and the inside of the crawler chassis 1 is provided with tensioning wheels, traveling wheels and driving wheels. The crawler chassis 1 is supported and positioned through the tensioning wheels, traveling wheels and driving wheels, and a hydraulic motor is connected to the driving wheels. 2 is equipped with a lifting main frame and a driving system, and the lifting main frame includes a hand-operated turntable 3, a lower boom 4 and an upper boom 5, and the bottom of the hand-operated turntable 3 is located on the platform 2 and is connected to the platform 2 for rotation , one end of the lower boom 4 is located at the top of the hand-operated turntable 3, the other end of the lower boom 4 is rotationally connected with the upper boom 5, and the other end of the lower boom 4 is rotationally connected with the upper boom 5 through a hinge 20, and the lower boom The arm 4 and the upper boom 5 are aluminum alloy tubes with a wall thickness of 8mm and 100mm. The drive system includes a driving system and an electric pressure pump 7. A hydraulic support rod 6 is provided between the upper boom 5 and the lower boom 4. , the electric pressure pump 7 and the hydraulic support rod 6 are in transmission connection, start the electric pressure pump 7 and drive the upper boom 5 to rise through the hydraulic support rod 6, and the driving walking system includes a diesel engine and a hydraulic pump station 8, and the diesel engine and the hydraulic pump station The oil pump of 8 is a transmission connection, and the hydraulic pump station 8 is set as a four-channel hydraulic pump station. The output end of the oil pump is connected to the hydraulic motor through the hydraulic oil pipe 9. A control valve 10 is arranged on the hydraulic oil pipe 9, and the hydraulic pressure is driven through the control valve 10. The pump station 8 sends the hydraulic oil from the hydraulic oil pipe 9 into the hydraulic motor, thereby driving the crawler chassis 1 to realize flexible walking front, rear, left, and right. The control valve is equipped with a hydraulic handle, which can drive the crawler chassis to move forward, backward, left, and right by controlling the hydraulic handle. Crawler track size is 1 meter * 1.2 meters, and described hoisting system comprises electric winch 11 and block pulley, and electric winch 11 is set to 3T electric winch, and the stay rope 12 of the electric winch of electric winch 11 is connected with lifting hook 13 after successively passing pulley block, The pulley block includes pulley Ⅰ14, pulley Ⅱ15 and pulley Ⅲ16. Pulley Ⅰ14 is set on the lower boom 4, pulley Ⅱ15 is at the bottom of the upper boom 5, pulley Ⅲ16 is located at the top of the upper boom 5, and the pull rope 12 of the electric winch passes through the pulley Ⅰ14, The pulley II15 and the pulley III16 are connected with the lifting hook 13, the diameter of the stay rope 12 is 6mm, the electric winch 11 drives the lifting hook 13 to rise or fall, and the platform 2 side at the top of the crawler chassis 1 is provided with supporting feet, and the supporting feet include Cross bar 17 and longitudinal bar 18, cross bar 17 and longitudinal bar 18 are made of 1.2 meters of 10# channel steel, one end of cross bar 17 is connected with platform 2, and the other end of cross bar 17 is connected with the top of longitudinal bar 18 , the bottom of longitudinal bar 18 is provided with swivel foot 19, and the diameter of swivel foot 19 is 20mm, and support foot can open the corner of 120 ° by swivel foot. The hydraulic pump station 8 is driven by the control valve 10, and the oil flow is delivered to the hydraulic motor through the hydraulic oil pipe 9, thereby driving the crawler chassis 1 to realize flexible walking front, rear, left, and right to the designated place; open the supporting legs, connect the 380V power supply, and start the electric pressure pump 7, Utilize the hydraulic support rod 6 to lift the upper boom 5; start the electric hoist 11, slowly roll up the stay rope 12 on the pulley block by the electric winch, drive the weight on the lifting hook 13 to rise or fall, and turn the weight by the hand-operated turntable 11 put the item in the proper position.

Claims (3)

1. a tight space track-mounted electric lifting appliance, it is characterized in that it comprises lifting body frame, tackling system, drive system and endless track installation, described endless track installation comprises crawler body (1), platform (2) is provided with at the top of crawler body (1), crawler body (1) inside is provided with tension wheel, road wheel and drive wheel, crawler body (1) passes through tension wheel, road wheel and drive wheel carry out supporting and location, be connected with HM Hydraulic Motor on the drive wheel, platform (2) is provided with lifting body frame and drive system, described lifting body frame comprises shaking rotating disk (3), lower arm (4) and upper boom portion (5), the bottom of shaking rotating disk (3) is positioned at the upper and platform (2) of platform (2) for being rotationally connected, one end of lower arm (4) is positioned at shaking rotating disk (3) top, the other end of lower arm (4) and upper boom portion (5) are for being rotationally connected, described drive system comprises driving running gear and electronic press pump (7), hydraulic supporting strut (6) is provided with between upper boom portion (5) and lower arm (4), electronic press pump (7) and hydraulic supporting strut (6) are for being in transmission connection, starting electronic press pump (7) drives upper boom portion (5) to rise by hydraulic supporting strut (6), described driving running gear comprises diesel engine and hydraulic power unit (8), the oil pump of diesel engine and hydraulic power unit (8) is for being in transmission connection, oil delivery side of pump is connected with HM Hydraulic Motor by hydraulic oil pipe (9), hydraulic oil pipe (9) is provided with control cock (10), described tackling system comprises electric winch (11) and assembly pulley, the stay cord (12) of the electric capstan of electric winch (11) is connected with hook (13) successively after assembly pulley, electric winch (11) drives hook (13) to rise or declines, described assembly pulley comprises pulley I (14), pulley II (15) and pulley III (16), pulley I (14) is arranged on lower arm (4), pulley II (15) is positioned at the bottom of upper boom portion (5), pulley III (16) is positioned at the top of upper boom portion (5), the stay cord (12) of electric capstan is successively through pulley I (14), pulley II (15) is connected with hook (13) with pulley III (16), platform (2) side at described crawler body (1) top is provided with feet, feet comprises cross bar (17) and longitudinal rod (18), one end of cross bar (17) is connected with platform (2), being connected with the top of longitudinal rod (18) of the other end of cross bar (17), the bottom of longitudinal rod (18) is provided with and turns pin (19).

2. tight space track-mounted electric lifting appliance according to claim 1, is characterized in that the other end of described lower arm (4) passes through hinge (20) with upper boom portion (5) for being rotationally connected.

3. tight space track-mounted electric lifting appliance according to claim 1, is characterized in that described lower arm (4) and upper boom portion (5) are aluminium-alloy pipe.