39results about How to "Easy stroke adjustment" patented technology

The invention relates to a compound balanced long-stroke oil pumping machine which comprises a base and a frame, wherein a transmission shaft is arranged on a support, a compound balancing mechanism is arranged at the middle part of the transmission shaft, one end of the transmission shaft is connected with a wheel train hanging rope mechanism through a belt transmission part, the other end of the transmission shaft is connected with a direction-changing driving mechanism, and the direction-changing driving mechanism comprises a driving motor, a drive shaft, a connecting rod and a pair of cranks connected with the connecting rod. Through the adoption of the compound balancing structure, the weight of a counterweight can be reduced greatly; furthermore, the rated power of a motor matched with the machine is small, the steel consumption can be reduced by above 35%, and the energy consumption during the using process can be reduced by above 50%. Simultaneously, the stroke and the stroke frequency are simple and convenient to adjust, the configuration of the mechanism does not need to be changed, and the machine has a larger range of application to different oil well states and changes of the oil well states.

A kind of fan type pneumatic actuator belongs to control valve switch contains external shell, medial axis, rotor and sealing device installing in the external shell body. It has characteristics as that, then rotor is fan type, sealing device is a fixed seal ring which contains rotor seal blade and shell body seal blade. The rotor blade is on the surface of seal ring medial cling to the rotor. The body seal blade is on the inner surface of seal ring lateral cling to shell body. Both sides of rotor seal blade and shell body seal blade setting as '>', '<'type. Both sides of shell body seal blade peripheral setting lug boss. Seal ring fixed on binding surface of two parts of shell. The invention has low energy consumption, simple structure, less components, low cost, is suitable for switch 90 degree of automatic control valve.

The invention discloses a glass plate processing device and belongs to the technical field of glass plate processing equipment. The device is characterized by comprising a lifting mechanism, a plurality of stamping frames (8) surrounding the lifting mechanism and molds in one-to-one correspondence to the stamping frames (8), wherein a feeding mechanism connected with a corresponding upper mold (41) is arranged on each stamping frame (8), a lower mold is arranged on the lower side of the corresponding upper mold (41), and each lower mold (40) is mounted on each clamp (3); a plurality of rollers(38) are rotationally mounted on each stamping frame (8), arranged on the upper sides of the lower molds (40) and connected with translation mechanisms pushing the rollers to move close to or away from the lower molds (40); each clamp (3) comprises a rotating disc (33), a swing arm and a jaw vice (37), and the rotating disc is connected with a clamp motor driving the rotating disc to rotate. Theglass plate processing device can simultaneously complete processing of multiple glass plates, the glass plate processing speed is high and the product quality is stable.

The invention relates to the field of machining equipment and provides a small lathe. The small lathe comprises a lathe bed, a spindle box provided with a spindle, a longitudinal dragging plate connected with the lathe bed through a longitudinal guide rail and a transverse dragging plate connected with the longitudinal dragging plate through a transverse guide rail. The small lathe further comprises a longitudinal cylinder, a transverse cylinder, a longitudinal limiting assembly, a transverse limiting assembly, a conical elastic clamp, a threaded connecting rod and a connecting rod driving assembly, wherein a cylinder rod of the longitudinal cylinder is connected with the rear end of the longitudinal dragging plate and is also connected with the lathe bed, a cylinder rod of the transverse cylinder is connected with the rear end of the transverse dragging plate and is also connected with the longitudinal dragging plate, the longitudinal limiting assembly is located on the front side of the longitudinal dragging plate, and the transverse limiting assembly is located on the front side of the transverse dragging plate. A conical hole matched with the conical elastic clamp is formed in the front end of the spindle. The front end of the threaded connecting rod penetrates through the spindle to be connected with the rear end of the conical elastic clamp in a threaded mode. The small lathe is simple in structure, capable of clamping parts effortlessly and high in efficiency.

The invention discloses a propulsion mechanism. The propulsion mechanism is characterized by comprising a base (1), a pushing plate (2) movably connected to the base (1), a driving device (3) for driving the pushing plate (2) to move and a limit component (4) connected to the base (1), and the position of the limit component (4) can be adjusted. According to the propulsion mechanism, by arrangingthe limit component adjustable in position, the stroke of the pushing plate can be adjusted; the structure is simple, the stoke adjustment is convenient and reliable, and the cost is low.

The invention provides a multi-stage pyrite water-saving sawtooth wave jigging gravity selection machine. The multi-stage pyrite water-saving sawtooth wave jigging gravity selection machine comprisesjigging boxes which are each of a V-shaped structure with an upward opening and is internally filled with medium water, a discharging device and a power driving device, wherein the jigging box is composed of a first jigging box and a second jigging box which are symmetrically arranged left and right, the first jigging box is used for receiving a mixture of pyrite and waste rock monomer and carrying out concentrate reselection, the second jigging box is used for carrying out secondary concentrate reselection on the mixture of the pyrite and the waste rock monomer and discharging tailings, and aconveying mechanism for connecting the opening of the first jigging box and the opening of the second jigging box is arranged between the opening of the first jigging box and the opening of the second jigging box; and an agitation mechanism used for vibrating the inner medium water is arranged on the side face, close to the bottom, of the jigging box, the discharging device is used for dehydrating and discharging the concentrate deposited at the bottom of the jigging box, and the power driving device is used for providing driving power for the conveying mechanism, the agitation mechanism andthe discharging device.

The invention provides a jigging gravity separation process for pyrite, the steps of which are as follows: firstly, the mixture of the ground pyrite and waste rock monomer is transported to the first jigging box, and the power driving device transmits the power to the first jigging box To the agitation mechanism, the agitation mechanism makes the medium water in the first jigging box and the second jigging box produce sawtooth wave vibration, and the first jigging box performs a concentrate gravity separation on pyrite and waste rock monomers and concentrates Deposited on the bottom of the first jigging box; then, the power drive device transmits the power to the transmission mechanism, and the transmission mechanism guides the pyrite, waste rock monomer and medium water in the first jigging box to the second jigging box Then, the second jigging box performs secondary concentrate gravity separation on pyrite and waste rock monomers, and the concentrate is deposited on the bottom of the second jigging box, and the tailings are discharged from the hopper of the second jigging box Discharging; in the process of step 1 to step 3, the discharge device dehydrates and discharges the concentrate at the bottom of the first jigging box and the bottom of the second jigging box.

The invention relates to a synchronous regulation structure for a stroke of a pressing machine in the technical field of pressing machines. The synchronous regulation structure comprises a group of crank shafts, two groups of connecting rods and two groups of eccentric distance adjusting devices, wherein the two groups of connecting rods are respectively connected with synchronous driving slide block mechanisms through the two groups of eccentric distance adjusting devices and the crank shafts; each eccentric distance adjusting device comprises an eccentric sleeve, a lock sleeve, a pneumatic device, a spring and a connecting rod cap, wherein the eccentric sleeve is sleeved at the periphery of the connecting rod neck journal of the crank shaft and can rotate and slip along the axial direction of the connecting rod neck journal; two end surfaces of the eccentric sleeve are respectively provided with lateral teeth; lateral teeth matched with the end surfaces of the eccentric sleeve are respectively arranged on the end surfaces, corresponding to the eccentric sleeve, of the lock sleeve and connecting rod cap arranged at two ends of the eccentric sleeve; and the pneumatic device and the spring can drive the eccentric sleeve to respectively be meshed with the lateral teeth of the lock sleeve and the connecting rod cap so as to realize normal punching motion and stroke regulation of the slide blocks. According to the synchronous regulation structure provided by the invention, the connecting rods and the eccentric distance adjusting devices are driven to carry out synchronous action through the rotation of the crank shafts, thus the synchronous and accurate regulation of the stroke of the slide blocks of the connecting rods is realized, and the regulation precision is high.

The invention provides an oil pumping unit of which a sucker rod is directly driven by a linear motor. The oil pumping unit comprises a rack, a linear motor driving device, a single-stage or multi-stage telescopic machine or a gas spring energy storage device, a linear motor rotor, a sucker rod connector and the like, wherein the linear motor driving device, the single-stage or multi-stage telescopic machine or the gas spring energy storage device, the linear motor rotor, the sucker rod connector and the like are arranged on the rack. The oil pumping unit cancels the connection of elastic pieces or radial components such as hair braids, steel wire ropes and belts for an original oil pumping unit, adopts a direct balance mode, and thus cancels the reversing device (head sheave) of an existing non-beam oil pumping unit, so that the efficiency of the oil pumping unit is further improved, the height and weight of the oil pumping unit are reduced, and the service life, reliability and safety of the oil pumping unit are improved.

The invention discloses a novel discharge pusher for pusher-type heating furnaces. The novel discharge pusher for pusher-type heating furnaces comprises an ejector rob mechanism, an ejector rob guide rack and an ejector rob propulsion drive mechanism, wherein the ejector rob propulsion drive mechanism is arranged on the ejector rob guide rack, the ejector rob propulsion drive mechanism comprises a fixed seat and an adjusting bracket, the adjusting bracket supports the fixed seat, the fixed seat is provided with a chain drive device for driving the ejector rob mechanism, the chain drive device comprises a motor, a speed reducer and a chain wheel, the chain wheel is connected with the speed reducer, the chain wheel is provided with a chain, and the motor and the speed reducer drive the ejector rob mechanism to carry out forward and backward reciprocating movement in the ejector rob guide rack through the chain wheel and the chain. The invention provides the novel discharge pusher for pusher-type heating furnaces, which is simple in structure, low in failure rate, economic and practical.

The invention provides a paying-off device of a plastic extruding machine, belonging to the technical field of the plastic extruding machine. One end of a thimble shaft (3) of the paying-off device of the plastic extruding machine is connected with a screw rod (4) which extends out of a thimble shaft sleeve (2); one end of the screw rod (4) extending out of the thimble shaft sleeve (2) is provided with a hand wheel (5) which is used for controlling the rotation of the screw rod (4); the thimble shaft sleeve (2) is arranged into a structure which can only move axially; positioning pins (15) which can prevent the thimble shaft sleeve (2) from moving along a base (1) of the paying-off device are arranged on the thimble shaft sleeve (2); the other end of the thimble shaft (3) is movably connected with a thimble head base (6); and the thimble head base (6) is connected with a detachable combined thimble head (7). According to the technical scheme adopted by the invention, the thimble shaft and the thimble shaft sleeve are simple in machining and high in assembling accuracy, and the stability of high-speed operation of the paying-off device is ensured; bearings are used for supporting in the paying-off device, thus the easiness and convenience in stroke adjustment operation are ensured; and the stroke adjustment in a larger range can be realized.

The invention relates to a novel vertical mechanical reversing energy-saving pumping unit. The novel vertical mechanical reversing energy-saving pumping unit is characterized in that a transmission system adopts a mechanical reversing, two-way gear drive and oil-immersed lubrication fully-enclosed reduction gearbox for realizing the positive and negative rotation of a head sheave of the pumping unit, to ensure the immense inertia of a pumping rod and a counterweight to decelerate, buffer until stop before the pumping unit runs to an upper dead point or a lower dead point, a crank buffer device is arranged so that the impact energy is smoothly absorbed and stored, the stored energy is released after passing through the upper dead point and the lower dead point, and a motor is started at an upper dead point or a lower dead point under the conditions of basically smooth input speed and torque. Through the adoption of mechanical reversing and closed oil-immersed lubrication, the adaptability of the pumping unit to the harsh environment is higher; as the motor runs in the same direction all the time, a complex electric control system is not provided, the reliability is high, and the servicing, the maintenance and the repair are simple; and the equipment is controlled to run by a PLC (programmable logic controller), and importantly, the system adopts a two-way backup, and therefore, both the reliability and the stability of the pumping unit are enhanced.