48results about How to "Consistent movement speed" patented technology

The invention discloses a pumping unit with a wide swing angle, which comprises a motor, a bracket, a connecting rod, a speed change mechanism, a lifting rope, a fixed pulley, a wellhead oil pumping device, a rocker arm, a rocker arm pillar and two crankshaft wheels, wherein one end of the rocker arm is movably connected on the rocker arm pillar, the other end of the rocker arm is connected with the lifting rope, the lifting rope is connected with the wellhead oil pumping device by the fixed pulley which is arranged on the bracket, the two crankshaft wheels are connected with the speed change mechanism, one end of the connecting rod is movably connected with the rocker arm, and the other end of the connecting rod is movably connected with the crankshaft wheels. According to the pumping unit disclosed by the invention, the speed change mechanism is matched with the crankshaft wheels to pump oil, so that a pumping unit can be started and the working of the pumping unit can be maintained by a motor with relatively small power, and the pumping speed and the stroke of the pumping unit can be conveniently regulated.

Disclosed is an apparatus (1) for conveying packages (10), comprising a first conveying device (4) that conveys the packages (10) in a predefined direction of travel (R) and a rotating device (6) which rotates at least some of the packages (10) by a predefined angle of rotation relative to a predefined axis of rotation. The rotating device (6) is equipped with at least one gripping mechanism (12)that grips the packages (10) for the rotating process. According to the invention, the conveying speed of the first conveying device (4) is synchronized with a moving speed of the gripping mechanism (12).

The invention discloses a large-sized hydraulic speed change floating box flap valve. The flap valve comprises a hinged support (1), a valve seat (3), an upper valve leaf (5) and a lower valve leaf (8), wherein both the valve seat (3) and the hinged support (1) are fixed on a pump station base; the upper valve leaf (5) is hinged with the hinged support (1) through a pin shaft (2); the lower valveleaf (8) is hinged with the upper valve leaf (5); the upper valve leaf (5) and the lower valve leaf (8) are hermetically contacted and matched with the valve seat (3) through a sealing structure, andthe upper valve leaf (5) is connected with the lower valve leaf (8) through at least one hydraulic mechanism (7); and one end of the hydraulic mechanism (7) is hinged with the upper valve leaf (5), and the other end of the hydraulic mechanism (7) is hinged with the lower valve leaf (8). After the structure is adopted, since the upper valve leaf and the lower valve leaf are provided with the hydraulic mechanism, the collision force of the valve leaves and the valve seat can be buffered by the hydraulic mechanism; thus water sealing rubber for sealing the valve leaves and the valve seat is prevented from being damaged so as to reduce the cost; meanwhile, the noise produced during collision is also reduced.

The invention provides a film mulching and opening mechanism of a full-automatic peanut sowing and film mulching all-in-one machine. The mechanism comprises an opening assembly and a sowing assembly,the opening assembly comprises a turntable, opening pipes and opening teeth, a plurality of seed guide cavities are circumferentially formed in the surface of one side of the turntable, the pluralityof opening pipes are circumferentially and fixedly connected to the side wall of the turntable, and the opening teeth are fixedly connected to one ends of outlets of the opening pipes. The sowing assembly comprises seed guide pipes, limiting blocks, a compression spring, a cam and a positioning shaft, the other end of the positioning shaft is slidably connected to the center of the turntable, thecam is fixedly connected to the other end of the positioning shaft, one ends of the seed guide pipes are slidably connected into the opening pipes, and the limiting blocks are fixedly connected to theother ends of the seed guide pipes; inlets are formed in the side surfaces of the limiting blocks and are flush with cavity openings at one ends of the seed guide cavities; and the turntable is arranged to rotate to enable the seed guide pipes to be regularly pushed by the cam and slide in the opening pipes, so that a material conveying pipe, the seed guide pipes and the opening pipes are communicated with one another at a certain frequency, and the opening and sowing positions and the operation frequency are always kept consistent.

The invention provides an assistive rehabilitation training robot for stroke hemiplegic patients. The assistive rehabilitation training robot comprises an upper-layer armrest frame, a middle-layer detection frame, a lower-layer support frame and a movable base plate which are parallelly arranged in the vertical direction. Each adjacent two of the upper-layer armrest frame, the middle-layer detection frame and the lower-layer support frame are fixedly connected with each other by three telescopic rods and an electric push rod, and the lower-layer support frame is fixedly connected with the movable base plate by lower-layer support rods; an emergency stop switch, a display screen and a control panel are respectively mounted on the outer surface of a U-shaped frame of the upper-layer armrest frame, four tension sensors are peripherally uniformly distributed at the upper edge of the middle-layer detection frame, and a detachable chair is mounted on the lower-layer support frame; two driving wheels and two driven wheels are peripherally symmetrically mounted at the upper edge of the movable base plate, a control box is mounted on the outer surface of a U-shaped frame of the movable base plate, and pedals are further arranged on the U-shaped frame of the movable base plate; the control box is respectively connected with the four tension sensors, motors, the emergency stop switch, the display screen and the control panel. The assistive rehabilitation training robot has the advantage that rehabilitation training requirements of the stroke hemiplegic patients can be met.

The invention relates to the technical field of building measuring equipment, and discloses a balancing weight well civil structure deviation measuring device. The balancing weight well civil structure deviation measuring device includes a deep well; a fixing bracket is fixedly mounted on one side of the top of the deep well, and a rotating shaft I is movably sleeved in the center of the fixing bracket; an outer wall of the rotating shaft I is fixedly sleeved with a reel on one side of the fixing bracket; an outer wall of the reel is wound with a steel rope; a round plate located on the outerwall of the rotating shaft I fixedly sleeves one side of the reel; a handle is fixedly sleeved with the top at one side of the round plate; a clamping groove is formed in one side of the round plate;and a fixing rod is fixedly arranged on a top end of the fixing bracket. According to the balancing weight well civil structure deviation measuring device, the clamping groove is formed in the round plate, an installation box can limit motion of the round plate, the influence of the restoring force of the steel rope on the measurement can be prevented during the measurement process, it is ensuredthat a measuring box is in a stationary state during measurement, and measurement errors are reduced.

The invention discloses a segmental roller of textile machinery. The segmental roller comprises an upper roller and a lower roller, wherein the upper roller comprises a first drive roller and a first transmission roller. The first drive roller is fixedly connected with an upper transmission shaft, and the first transmission roller is movably connected with the upper transmission shaft. The lower roller comprises a second drive roller and a second transmission roller. The second drive roller is fixedly connected with a lower transmission shaft, and the second transmission roller is movably connected with the lower transmission shaft. Pressure sensors are respectively arranged on the first transmission roller and the second transmission roller. The segmental roller can detect moving speed of slivers, prolongs service life, and improves production efficiency.

The invention discloses a shearing synchronous oil circuit for a flash welding machine, which comprises a first shearing cylinder, a second shearing cylinder, a three-position four-way reversing valve and a synchronous motor. The first shearing cylinder and the second shearing cylinder are respectively provided with a first cavity and a second cavity, the three-position four-way reversing valve is provided with a first oil port, a second oil port, a third oil port and a fourth oil port, the first oil port of the three-position four-way reversing valve is connected with an oil inlet circuit, the third oil port of the three-position four-way reversing valve is connected with an oil return circuit, both a first inlet and a second inlet at one end of the synchronous motor are communicated with the second oil port of the three-position four-way reversing valve, a first outlet and a second outlet at the other end of the synchronous motor are correspondingly communicated with the first cavities of the first shearing cylinder and the second shearing cylinder respectively, and both the second cavities of the first shearing cylinder and the second shearing cylinder are communicated with the fourth oil port of the three-position four-way reversing valve. By the aid of the shearing synchronous oil circuit, the volume of oil entering the two shearing cylinders can be equivalent during shearing, and the movement speeds of the two shearing cylinders can be uniform.

The present invention is applicable to the technical field of pipe material spray printing, and provides a spray printing control method of a spray printing system, comprising: the second controller controls two synchronous motors to rotate forward at the same speed according to the start-up command, and the belt drives the spray printing The encoder moves forward along the guide rail; the first controller calculates the moving distance of the inkjet printer according to the synchronous speed signal; when the moving distance of the inkjet printer reaches the first preset distance, the second controller starts The coding signal controls the inkjet printer to start printing; when the moving distance of the inkjet printer reaches the second preset distance, the second controller controls the inkjet printer to stop printing according to the stop coding signal ; When the moving distance of the inkjet printer reaches the third preset distance, the second controller controls the synchronous motor to rotate in reverse according to the signal, so that accurate inkjet can be realized, and the inkjet is highly controllable.

The invention relates to the technical field of filtering equipment, and discloses a floating bed biofilter with a backwashing function, wherein the floating bed biofilter comprises a filter body, themiddle part of the filter body is provided with a diameter changing section, and the upper part of the filter body is provided with a perforated plate. According to the floating bed biofilter with the backwashing function, when filter material particles flow through the diameter changing section; particles in the middle move along an inclined push plate; the direction changes, diffusion of particles in the diameter changing section is accelerated, and at the same time, the speed of the particles in the middle is reduced; the movement speeds of internal and external particles are consistent; the bed forming quality is improved, and the bed forming time is shortened; meanwhile, when blockage occurs, gradual expansion is performed in one blocked isolation cavity, interference to filter materials in other isolation cavities is avoided, the time for blocking gaps of filter material parts is delayed, and the single-time service period is prolonged; and meanwhile, due to the fact that the filtering effect in the single isolation cavities is poor, interference to the whole body is small, and the output water quality during blockage is improved.

The invention relates to the technical field of protective doors and discloses a protective double-leaf door. The protective double-leaf door comprises a first door leaf, a second door leaf and a drive device. The peripheral side faces of the first door leaf and the peripheral side faces of the second door leaf are all provided with covering edges covering and sealing the peripheral side faces of the door leaves. The covering edges of the inner side faces, located at the joint of the first door leaf and the second door leaf, of the door leaves are each provided with a boss portion, and the boss portions are matched with each other. The width of each boss portion is smaller than a half of the width of the inner side face of each door leaf. The drive device comprises a guide rail, rail wheel assemblies, an installation plate, a motor, a belt, belt pulleys and a controller, wherein the motor, the belt, the belt pulleys and the controller are arranged on the installation plate. The distance between the belt pulleys located at the two ends of the belt is larger than the width of the protective double-leaf door. The rail wheel assemblies connected with the first door leaf and the rail wheel assemblies connected with the second door leaf are connected to two segments, located in different movement directions, of the belt correspondingly. The two door leaves are synchronously driven to conduct the opening action or the closing action through the motor and the belt device, and therefore the movement speeds of the door leaves are equal. The drive device is simple in structure and reliable in strength.

The invention relates to a parallel type three-axis linear robot. The parallel type three-axis linear robot comprises three drivers located on the periphery of a central axis and a movement mechanism. The movement mechanism comprises a three-connecting-rod set which is rotationally symmetrical relative to the central axis and an end effector which is connected with the three-connecting-rod set in parallel. Each connecting rod set is driven by a driver in a linear or rotating manner, so that the end effector can linearly move in a three-dimensional space; each connecting rod set comprises a first connecting rod, a second connecting rod and a third connecting rod which are sequentially connected in series, wherein the third connecting rod is pivoted to the end effector; the first rotating joint, the second rotating joint and the third rotating joint are respectively pivoted among the first connecting rod, the second connecting rod, and the third connecting rod; included angles between the first to third rotary joints and an imaginary plane perpendicular to the central axis are acute angles; the first center distance between the first rotating joint and the second rotating joint is equal to the second center distance between the second rotating joint and the third rotating joint, so that the overall height of the movement mechanism can be reduced, the working stroke is increased, and the movement stability is improved.

The invention discloses a plate laser cleaning process and laser cleaning equipment. The center of the top face of a plate serves as a base point, and cleaning is conducted in the edge direction of the plate in a diffusion circle mode; and the diffusion circle is formed by unidirectionally changing the inclination angle of a laser head and rotating the plate by taking the center as the axis point. The same motor is used as a power source, the uniformity of the rotating frequency of a power shaft is guaranteed, the angular rate of the laser head and the moving rate of a dust suction pipe are consistent by adjusting a wriggling rotating disc and threads, and the adsorption efficiency of the dust suction pipe is guaranteed; the inclination angle of the laser head is changed unidirectionally, the forward diffusion circle is formed in combination with a plate axis point rotation mode, and reverse diffusion is formed through reverse change of the inclination angle of the laser head; when forward diffusion is combined, the laser removes dirt at high frequency; and the cleaning effect is strengthened through low frequency by reverse diffusion and laser. The equipment is simple in structure, convenient to use, integrated in the cleaning process, high in the automation degree, good in the cleaning effect, low in the dust splashing rate, environmentally friendly, high in practicability and wide in applicability.