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55 results about "Grouser" patented technology

Grousers are devices intended to increase the traction of continuous tracks, especially in loose material such as soil or snow. This is done by increasing contact with the ground with protrusions, similar to conventional tire treads, and analogous to athletes' cleated shoes. On tanks and armoured vehicles, grousers are usually pads attached to the tracks; but on construction vehicles they may take the form of flat plates or bars.

Lift and tower crane

The invention relates to a lift and a tower crane and belongs to the technical field of building equipment. The lift is applied to the tower crane and comprises a lift car, a driving mechanism and twocrawling mechanisms. The driving mechanism is detachably arranged in the lift car; each of the crawling mechanisms comprises a caterpillar band, a driving wheel set and a shoe assembly; the caterpillar band is of a chain-ring structure, the driving wheel set is located in a chain ring, the driving wheel set is connected to the driving mechanism and is used for driving the caterpillar band to rotate, the shoe assembly is arranged around the periphery of the caterpillar band, and the shoe assembly is used for being matched with a step of the tower crane and suspending the crawling mechanisms onthe tower crane. The lift arranged on the tower crane is small in occupied space, and a tower crane driver can be safely and reliably delivered to a cab, so that the efficiency is improved, and unnecessary troubles of the tower crane driver are avoided; a guide rail is modified by a standard knot of the tower crane and unnecessary guide rails are unnecessarily mounted. The lift can climb on the tower crane initiatively, and is stably connected to the tower crane, so that the safety performance and the comfort performance of the integral lift are improved.
Owner:WUHAN POLYTECHNIC UNIVERSITY

Self-propelled miniature rotary cultivator

The invention discloses a self-propelled miniature rotary cultivator. A main plate is arranged in the middle of the whole device, two handles are arranged on the rear side of the upper surface of themain plate, a connecting rod is arranged at the middle sections of the two handles, a supporting plate is arranged on the rear side of the connecting rod, a hydraulic valve is arranged on the upper side of the supporting plate, rocking bars are arranged at the top of the hydraulic valve, an oil tank is arranged in the middle of the upper side of the main plate, an engine is arranged on the front side of the oil tank, and a hydraulic pump is arranged on the left side of the engine; a fixing base is arranged on the front side of the engine, a connection shaft is arranged at the bottom of the fixing base, a baffle is arranged at the bottom of the connection shaft, an unloading groove is formed in the bottom end of the baffle, side plates are arranged on both sides of the baffle, hydraulic motors are arranged on the outer sides of the side plates, a connecting shaft is arranged in the baffle, and a connecting plate is arranged in the middle of the connecting shaft; a rotary base is arranged at the bottom of the main plate, a rotary disc is arranged at the bottom of the rotary base, three hydraulic cylinders are arranged at the bottom of the rotary disc, hydraulic rods are arranged at the bottoms of the hydraulic cylinders, and a soil grouser is arranged at the bottoms of the hydraulic rods. The self-propelled miniature rotary cultivator is convenient to move, stable in power outputand high in working efficiency.
Owner:NANJING ZHIQIAO AGRI CO LTD

Grouser device special for mining vehicle and capable of adapting to different deep sea surface layer soil and method

The invention discloses a grouser device special for a mining vehicle and capable of adapting to different deep sea surface layer soil properties. The grouser device special for the mining vehicle andcapable of adapting to the different deep sea surface layer soil properties involves a track body, a plurality of long-strip holes arranged in parallel are formed in the upper surface of the track body, a long strip-shaped grouser capable of freely moving up and down along the corresponding long-strip hole is arranged in each long-strip hole, baffles with the width larger than the width of the long-strip holes are fixed at the lower ends of the grousers, groove-type mounting seats are fixed at the lower ends of the baffles, the adjacent two grousers are in a group, the plurality of grousers are divided into a plurality of grouser combinations independent from one another, the mounting seat of each group of grousers is rotationally connected with one corresponding grouser push plate through a pin, each grouser push plate is controlled by a hydraulic control and pushing device arranged in a cavity in the middle of the track body, vane-shear apparatus is arranged at each of the front endand the rear end of the cavity in the middle of the track body, and the vane-shear apparatus is connected with controllers of the hydraulic control and pushing devices through data lines. The invention further discloses a using method of the device.
Owner:OCEAN UNIV OF CHINA

Portable valve operation device

The invention relates to a portable valve operation device which is characterized by comprising a power source, a power source transmission mechanism, a connector and a hand wheel connecting chuck, wherein the power source is connected with the power transmission mechanism through the connector; the connector is connected with the power source; the output end of the power transmission mechanism is bonded with a central hole in the hand wheel connecting chuck; a plurality of grousers are screwed with the plane of the hand wheel connecting chuck so as to form a hand wheel locking mechanism. The portable valve operation device has the beneficial effects that the tool is simple in structure, convenient to carry, small in size and simple and convenient to operate, the safety coefficient of valve operation can be increased, the valve operation efficiency can be improved, operation of multiple tube diameters and multiple types of valves can be achieved, and operation on valves in multiple directions can be also achieved. Operation danger site sources can be reduced, the working safety can be improved, the time for opening and closing the valves can be shortened, the working efficiency can be improved, and opening and closing of multiple types of valves can be achieved.
Owner:TIANJIN WATER RECYCLING COMPANY

Large rod-cable extending arm extension driving mechanism

The utility model relates to a large-scale cable rod type extension arm expansion drive mechanism, which relates to a space cable rod type extension arm expansion drive mechanism. It can solve the problem that the large cable-rod extension arm in the existing space is driven by a four-thread spiral lifting sleeve mechanism, which has high manufacturing precision and high manufacturing process requirements, and the extension arm is easy to "stuck". The bottom end cover (1), the retracting sleeve (2), the derotation sleeve (3), and the driving sleeve (4) are fixed together, and the inner wall of the derotation sleeve (3) is provided with eight curved grooves ( 15), eight linear tracks (9) are fixedly installed on the inner wall of the retracting sleeve (2), and the driving sprocket (10) and driven sprocket (13) driven by the chain (11) and the driving sleeve (4) Fixed connection, three chain tooth pieces (12) are equidistantly installed on each chain (11), and rollers (6) are fixedly installed on each top angle of the cable-bar type extension arm assembly, and the rollers (6) are inlaid with The stretch arm tooth piece (5), the chain tooth piece (12) meshes with the stretch arm tooth piece (5), and the driving sprocket (10) is connected by a reversing transmission mechanism. The invention has the advantage of strong ability to accommodate the deformation and processing errors of the extension arm.
Owner:BEIJING INST OF SPACECRAFT SYST ENG +1
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