13results about How to "Stable lift control" patented technology

The elevated net cage consists of net cage and inflating and deflating elevator, and the inflating and deflating elevator is one sink-float barrel below the net cage and connected to the net cage via rope or linking rod. The sink-float barrel includes an upper sealed cavity, a lower inflating cavity with bottom opening, an air inflating pipe through the sealed cavity and with one end communicated to the inflating cavity and the other end connected to a float body, and the sink-float barrel is connected via rope to a weight. The inflating and deflating elevator has control system comprising terminal control box, air inlet and outlet valves in air pipe, compressed air cylinder or air compressor, with the air outlet valve being a remote controlled one. The elevated net cage may ascend and descend smoothly and reliably and may be remote controlled.

The elevated net cage consists of net cage and inflating and deflating elevator, and the inflating and deflating elevator is one sink-float barrel below the net cage and connected to the net cage viarope or linking rod. The sink-float barrel includes an upper sealed cavity, a lower inflating cavity with bottom opening, an air inflating pipe through the sealed cavity and with one end communicated to the inflating cavity and the other end connected to a float body, and the sink-float barrel is connected via rope to a weight. The inflating and deflating elevator has control system comprising terminal control box, air inlet and outlet valves in air pipe, compressed air cylinder or air compressor, with the air outlet valve being a remote controlled one. The elevated net cage may ascend anddescend smoothly and reliably and may be remote controlled.

The invention discloses a novel automatic lifting nitrogen blowing instrument, and belongs to technical field of the sample concentration device. The nitrogen blowing instrument comprises a base, a heating bath is arranged in an upper end of the base, a pre-heating device is arranged in a right side of the base, and a right side of the upper end of the base is connected with a lifting device through a bracket; the lifting device comprises an electric sliding block, a linear guide rail and a lifting plate; the electric sliding block is sleeved on the linear guide rail and longitudinal moves along the linear guide rail; the electric sliding block is connected with the lifting plate, and a nitrogen blowing pipe and a blowing needle are arranged on the lifting plate. The nitrogen blowing instrument disclosed by the invention is simple in structure and reasonable in design; the electric height regulation is realized by improving the structure; the precise and stable lifting control is realized through the automatic lifting device; the working efficiency is improved, and the manpower cost is saved; and the nitrogen blowing instrument is suitable for the sample with is small in sample size and needs batch nitrogen blowing.

The invention relates to a laser land leveler for a paddy field with a copying supporting roller. The laser land lever comprises a rack, an elevation adjusting device, an elevation device, a land leveling device and a left and right leveling device, wherein the rack is connected to a tractor through a three-point suspension device, the elevation device is connected to the rack through the elevation adjusting device to adjust the height of the elevation device, and the land leveling device is connected to the elevation device and is leveled left and right through the left and right leveling device. The laser land leveler further comprises the copying supporting roller mounted below the rack; the copying supporting roller is in floating connection to the tractor through the rack and the three-point suspension device. During work, the copying supporting roller is supported by a mud face of the paddy field to copy and is irrelevant to moving gesture change of the tractor, and the gesture change of the copying supporting roller causes gesture change of the land leveling device. A land leveling shovel is in lift control more stably, so that the land leveling quality and efficiency are improved. The operating precision is improved, and the laser land leveler belongs to the technical field of farmland levelers.

The invention discloses a double-drive chain wheel locking joint device for a chain conveyor. The double-drive chain wheel locking joint device comprises a fixed plate, a slot is formed in the fixed plate, and a row of buckle frames is arranged above the fixed plate. Four fixed boards are arranged on the fixed plate, fixed blocks are arranged on the fixed boards, and hydraulic cylinders are arranged on the fixed blocks. Piston rods are arranged on the upper portions of the hydraulic cylinders, the lower ends of the piston rods are connected with the upper portions of the hydraulic cylinders, and lifting adjusting blocks are arranged at the upper ends of the piston rods. Guide shafts are arranged at the two ends of the fixed blocks, the two ends of each lifting adjusting blocks are arranged on the peripheral face of the guide shaft in a sleeving manner, buckle blocks are arranged on the front portions of the lifting adjusting blocks, and the buckle blocks are buckled on the buckle frames. Two pairs of gears are arranged on the slot, and the gears are connected through chains. The gears can be in butt joint through the chains, and therefore the chain conveyor can be conveniently sleeved with the gears. The buckle frame can be buckled through the buckle blocks, and the gears and the chains can be protected through the buckle frames.

The invention discloses an array type infrared lamp module lifting control device which comprises a driving motor. Supporting blocks are arranged at the periphery of the top of the driving motor, a base plate is arranged at the tops of the supporting blocks, side frames are arranged at the two sides of the base plate, a top plate is arranged between the tops of the side frames, and the top plate and the base plate are arranged in parallel; a pair of guiding shafts are arranged between the top plate and the base plate, the guiding shafts are sleeved with sliding tubes, a threaded column is arranged between the top plate and the base plate, the guiding shafts and the threaded column are sleeved with a lifting mechanism; the lower end of the threaded column is connected with the driving motor, the peripheral face of the threaded column is sleeved with a lifting base, the lower portion of the lifting base passes through a lifting cylinder, and the lifting cylinder and the threaded column are in threaded connection; the lifting mechanism is installed on the lifting base; the sliding tubes are installed on the lifting mechanism. The lifting mechanism can vertically move along the guidingshafts, and the stabilizer is better; accordingly, the array type infrared lamp module can be controlled to achieve stable lifting control.

The invention discloses a feed conversion rate measuring device, comprising a feed adding system, a feeding system, an electronic tag system and an automatic weighing system. The feed adding system comprises an adding line, a barrel, an index disc, an upper dropping passage and a lower dropping passage; the barrel is supported in a barrel holder; an upper opening of the barrel is connected with the adding line; a lower opening of the barrel is provided with the index disc; the bottom of the barrel is divided into a plurality of passages equal in size through the index disc; the passages are connected corresponding with an upper opening of the upper dropping passage; a lower opening of the upper dropping passage is connected with an upper opening of the lower dropping passage; a box is adapted to a lower opening of the lower dropping passage; a dropping guide bar component is mounted inside the lower dropping passage. The problems are solved that, for instance, existing equipment uses large floor area and has poor watertightness, feeding height is unadjustable, the existing equipment has complex structure and high cost, and chicken consumption is inaccurately weighed. The feed conversion rate measuring device has the advantages of good operating simplicity, low cost, and higher precision of feed weighing.

The invention discloses a meat material conversion rate measuring device, comprising a feed adding system, a feeding system, an electronic label system and an automatic weighing system; the feed adding system includes a feeding line, a barrel, an indexing plate, a loading and unloading system material channel and falling material channel; the barrel is supported in the barrel frame, the upper port of the barrel is connected with the feeding line, and the lower port of the barrel is provided with an indexing plate, and the indexing plate moves the barrel The bottom is divided into a plurality of channels of equal size; the channels are correspondingly connected with the upper ports of the upper blanking channels, the lower ports of the upper blanking channels are connected with the upper ports of the lower blanking channels, and the lower ports of the lower blanking channels are connected to A material box, and a material blanking guide rod assembly is installed inside the material falling channel. The invention solves the problems of large floor space, poor waterproofness, inability to adjust the height of the feeding position, complex structure, high cost, inaccurate weighing of chicken consumables, etc. in the existing equipment, and has the advantages of simple operation, low cost, and feed weighing accuracy. higher effect.

The present invention provides a transplanter which is provided with the following components: a body which is provided with driving wheels; a plating tool which is equipped on the body and plants the planting object; a lifting device which causes the body to lift relative to the driving wheels; a lifting conversion part which converts lifting action of the lifting device; a middle connecting part which is connected with the lilfting conversion part; two grounding members which are configured at the left side and the right side and respectively move vertically through grounding with a farmland surface and rotation of a grounding member rotation shaft that extends in a left-and-right direction correspondingly to height change of the farmland surface; a cantilever which is connected with the two grounding members at a position that is higher than the grounding member rotation shaft and has a position that changes correspondingly with vertical movement of the two grounding members; and an interlocking arm which rotates around the grounding member rotation shaft. One part of the interlocking arm is connected with the cantilever at the central position of each connection part between the cantilever and the two grounding members, and the other part is connected with the middle connecting part at the position that is higher than the grounding member rotation shaft. The transplanter can perform stable body lifting control when soil block exists in farmland.

The invention discloses an anti-falling hydraulic lifting mechanism and equipment. Lifting frames are included, a lifting rod is installed at the top between the lifting frames, a first connecting plate is installed in the middle of the bottom end of the lifting rod, a first lifting ring is installed at the bottom of the first connecting plate, and a self-locking spring balancer is installed on the first lifting ring; and a stable base is installed at the bottom ends of the lifting frames, and a lifting table is installed in the middle of the top end of the stable base. Side protection platesare installed on the two sides of the lifting table and slidably connected with the lifting frames, so that lifting of the lifting frames is stable, second connecting plates are installed at one endsof hydraulic rods, traction ropes are installed on the two sides of the bottoms of the second connecting plates through hanging wheels, and one ends of the traction ropes are connected with the two sides of the tops of the side protection plates through third hanging rings; and stable lifting control is achieved, the self-locking spring balancer is installed in the middle of the bottom end of thelifting rod, and an anti-falling rope is installed in the self-locking spring balancer.

The invention discloses a hydraulic lifting control mechanism, a liftable box body and a cotton box lifting system of a cotton picker. The hydraulic lifting control mechanism comprises a first oil cylinder, a second oil cylinder, a third oil cylinder, a synchronous distributing motor and a solenoid directional valve, wherein a piston rod of the first oil cylinder, a piston rod of the second oil cylinder and a piston rod of the third oil cylinder act on a to-be-lifted device; and the first oil cylinder, the second oil cylinder and the third oil cylinder are same oil cylinders, and volume, in unit height, of low cavities of the three cylinders is twice the capacity of upper cavities of the three cylinders. The hydraulic lifting control mechanism applies a parallel and series mixed use way, avoids a phenomenon that the oil cylinders are out of step as a result of uneven stress of the parallel oil cylinders through three oil cylinders, which are the same in structural form and specification, and synchronous distributing motors, realizes synchronous and stable lifting control on a to-be-lifted device, reduces management and maintenance cost, is low in cost, and is reliable in operation.

The invention discloses a desulfurization wastewater pretreatment reaction device, which comprises a base and a threaded hole, a shell is arranged at the upper end of the base, a supporting plate is arranged at the upper end of the interior of the shell, a motor is arranged on the right side of the upper end of the supporting plate, a rotating rod is arranged in the middle of the lower end of themotor, and a gear is arranged on the outer ring of the middle of the rotating rod; a conveyor belt is arranged outside the gear; driven rods are arranged at the left end and the right end of the rotating rod, stirring blades are arranged on the two sides of the lower ends of the driven rods, a reaction tank is arranged outside the stirring blades, a transverse plate is arranged in the reaction tank, and an internal water outlet is formed in the middle of the lower end of the transverse plate; and a filter screen is arranged at the lower end of the internal water outlet. The desulfurization wastewater pretreatment reaction device is provided with a connecting plate, and the connecting plate performs lifting motion at the lower end of the supporting plate under the action of a hydraulic pushrod, so that a user can conveniently control the position of the connecting plate through the hydraulic push rod, and a brush at the lower end of the connecting plate is controlled.

The invention discloses a double-drive chain wheel locking joint device for a chain conveyor. The double-drive chain wheel locking joint device comprises a fixed plate, a slot is formed in the fixed plate, and a row of buckle frames is arranged above the fixed plate. Four fixed boards are arranged on the fixed plate, fixed blocks are arranged on the fixed boards, and hydraulic cylinders are arranged on the fixed blocks. Piston rods are arranged on the upper portions of the hydraulic cylinders, the lower ends of the piston rods are connected with the upper portions of the hydraulic cylinders, and lifting adjusting blocks are arranged at the upper ends of the piston rods. Guide shafts are arranged at the two ends of the fixed blocks, the two ends of each lifting adjusting blocks are arranged on the peripheral face of the guide shaft in a sleeving manner, buckle blocks are arranged on the front portions of the lifting adjusting blocks, and the buckle blocks are buckled on the buckle frames. Two pairs of gears are arranged on the slot, and the gears are connected through chains. The gears can be in butt joint through the chains, and therefore the chain conveyor can be conveniently sleeved with the gears. The buckle frame can be buckled through the buckle blocks, and the gears and the chains can be protected through the buckle frames.