Novel elevating mat-awning for pipe hanger

The invention belongs to the engineering machinery field, in particular to an auxiliary device of pipelayer used in pipe construction and maintenance, i.e. a novel lifting pergola, which comprises a pergola body (1) and an outrigger sleeve (2), wherein the outrigger of the pergola body (1) is provided with a locating pin hole I (3); the outrigger sleeve (2) is fixed on the chassis of the pipelayer and is provide with a locating pin hole II (4); the outrigger of the pergola body (1) is inserted into the outrigger sleeve (2). Height lifting of the pergola can be realized just through adjusting the locating pin holes I (3) and II (4) matching with each other; thereby, the invention is characterized in height lifting of the pergola, meeting the requirements of operation and transportation of pipelayer, increasing use efficiency and lowering use cost as well as a simple structure and convenient operation ,etc.

Full-hydraulic wheel type digging machine shifted by hydraulic power

The present invention relates to a novel full hydraulic wheel type excavator shifting with hydraulic power. A cab, a hydraulic controlling device and an excavating device are arranged on a wheel type chassis driven by a front bridge and a back bridge, and the walking gearbox in the wheel type chassis adopts a hydraulic power shifting gearbox containing a casing body (1) as well as an axle I (2), an axle II (3), an axle III (4), an axle IV (5), an axle V (6) etc., the axle I (2) is connected with a hydraulic motor (7) and is provided with a spline gear (8), the axle II (3) is provided with a low-speed brake gear(9) and a friction type hydraulic clutch I (10), and the axle III (4) is provided with a double-linked gear I (12) , a friction type hydraulic clutch II (13), and a high-speed clutch gear (14), the axle IV (5) is connected with a front driving bridge (21) in parallel and is provided with a low-speed double-linked gear (16), and the axle V (6) is connected with a back driving bridge ...

Gear change mechanism for mobile power station

The invention discloses a gear change mechanism for a mobile power station. The gear change mechanism comprises a gear change mechanism body (1), a clutch operating valve (2), a preacceleration motor (3), an operating rod I (4) and an engaging device, wherein the gear change mechanism body (1) comprises an input shaft (11), a traveling transmission shaft (12) and an electric generator transmission shaft (13); the preacceleration motor (3) and the electric generator transmission shaft (13) are arranged in the same axial line; the preacceleration motor (3) is connected with the shell of the gear change mechanism body (1); the preacceleration motor (3) is connected with the electric generator transmission shaft (13) through the engaging device; one end of the operating rod I (4) is hinged with the shell of the gear change mechanism body (1); the middle part of the operating rod I (4) is hinged with the engaging device; the clutch operating valve (2) is arranged on the gear change mechanism ...

Novel power gear shifting speed changing box for wheeled model digger

Novel large-tonnage pipe slinging machine

The invention discloses a novel large-tonnage pipe slinging machine, which comprises a swiveling mechanism, a lifting mechanism, a girder type suspension arm (4), a weight (6), a telescopic oil cylinder (6), an amplitude changing mechanism, a hook (1), a hydraulic device, a power device, a cab (2), a caterpillar chassis (3), and a safety device; a gear of a caterpillar driving wheel (5) adopts an outer swinging type; and the weight (6) is arranged on a vehicle frame through a four-connecting rod structure and positioned on the opposite side of the girder type suspension arm (4). The novel large-tonnage pipe slinging machine has the advantages of large lifting tonnage, high strength, good stability, and the like.

Novel pipe hanger equipped with auxiliary boom

The invention belongs to the engineering machinery field, in particular to a novel pipelayer provided with an auxiliary boom used in pipe construction and maintenance. The invention comprises a pipelayer (5) and is characterized in that: the upper end of the boom (4) of the pipelayer (5) is hinged with an auxiliary boom (1); during operation, the auxiliary boom (1) matches with the boom (4) of the pipelayer (5) to jointly bear slinging weight. The invention can improve slinging capacity of medium- and small-sized pipelayers and can meets the requirements of maintaining big-caliber long transmission pipeline, mulching operation and laying of big-caliber pipeline; meanwhile, the invention is characterized in good stability, a simple structure, convenient use and low cost ,etc.

Full-hydraulic wheel type digging machine shifted by hydraulic power

The present invention relates to a novel full hydraulic wheel type excavator shifting with hydraulic power. A cab, a hydraulic controlling device and an excavating device are arranged on a wheel type chassis driven by a front bridge and a back bridge, and the walking gearbox in the wheel type chassis adopts a hydraulic power shifting gearbox containing a casing body (1) as well as an axle I (2), an axle II (3), an axle III (4), an axle IV (5), an axle V (6) etc., the axle I (2) is connected with a hydraulic motor (7) and is provided with a spline gear (8), the axle II (3) is provided with a low-speed brake gear(9) and a friction type hydraulic clutch I (10), and the axle III (4) is provided with a double-linked gear I (12) , a friction type hydraulic clutch II (13), and a high-speed clutch gear (14), the axle IV (5) is connected with a front driving bridge (21) in parallel and is provided with a low-speed double-linked gear (16), and the axle V (6) is connected with a back driving bridge ...

Pipe hoist sub-arm

The invention relates to an underground pipeline of a medium and small pipe hoist machine, in particular to an auxiliary hoist arm for the maintenance and cover pavement in a large caliber pipeline or the pavement of the underground pitch of the large caliber pipeline. The invention includes a supporting arm (1) with the A-typed structure, a swing oil cylinder (2), and a supporting leg (3); the upper end of the supporting arm (1) is articulated with a hoist arm (4) of the pipe hoist machine; the lower end of the supporting arm (1) is articulated with the supporting leg (3); one end of the swing oil cylinder (2) is articulated with the hoist arm (4) while the other end is articulated with the supporting arm (1). By the swing oil cylinder (2), the supporting leg (3) arranged at the lower end of the supporting arm (1) is supported on the ground. The hoist weight is commonly supported by matching with the hoist arm (4). The invention has the capability improving the hoist weight of the medium ...

Novel hydraulic crawler crane

The invention relates to a novel hydraulic crawler crane, which is the improvement of wheel crane through replacing wheel type chassis by crawler chassis. The invention comprises a crawler chassis (1), a turntable (3) arranged on the crawler chassis (1) through a turning gear (5) and a turning support (2), a lifting mechanism (4), a hydraulic device (9), a power device (10), a balance weight assembly (11) and a driving cab (12) which are arranged on the turntable (3), a telescopic boom (6) hinged with the turntable (3), a sling dog (8) arranged at the other end of the telescopic boom (6), a telescopic oil cylinder arranged inside the telescopic boom (6), a derricking oil cylinder (7) hinged with the turntable (3) and the telescopic boom (6), a hydraulic device (9) and a power device (10) ,etc. The invention is characterized in flexible maneuvering, large working scope, a compact structure, safe and reliable working, convenient operation, aesthetic appearance, ideal comfortableness, being ...

Novel power gear shifting speed changing box for wheeled model digger

The present invention relates to a novel power shift speed change box of a wheel type excavator, and consists of an axle 1 (2) provided with a spline gear (7); an axle 2 (3) provided with a low-speed clutch gear (8) and a friction type hydraulic clutch 1 (9); an axle 3 (4) provided with a double-linked gear 1 (13), a friction type hydraulic clutch 2 (14), and a high-speed clutch gear (15); an axle 4 (5) provided with a low-speed double-linked gear (20); and an axle 5 (6) provided with a high-speed double-linked gear (22), etc.. A shifting gear (23) is arranged between the axle 4 (5) and the axle 5 (6), a shifting fork (24) arranged on a shifting oil cylinder (25) is connected with the shifting gear (23), the spline gear (7) is meshed with the friction type hydraulic clutch 1 (9), the friction type hydraulic clutch 1 (9) is meshed with the friction type hydraulic clutch 2 (14), the low-speed clutch gear (8) is meshed with the big end of the double-linked gear 1 (13), the small end of the ...