35results about How to "Reliable pressing force" patented technology

The present invention relates to a low cylinder of hydraulic double-acting stretcher, belonging to the field of calendering equipment technology. The mechanism includes working table plate which can be moved along the upright column of machine seat and low cylinder mounted on the machine seat. The also includes slide support frame, short connecting bar, curved connecting bar and long connecting bar. The described slide support frame is fixedly connected with end head of piston rod of lower cylinder, two ends of the described short connecting bar are respectively hinged with the slide support frame and one end of the curved connecting bar, the described curved connecting bar is made into the inverted 'L' form, its one end is hinged on the machine seat, and its corner is hinged with made into the inverted 'L' form, its one end is hinged on the machine seat, and its corner is hinged with one end of the long connecting bar, and another end of the long connecting bar is hinged with working table plate.

The invention provides an adjustable fixed plate and a hanging fixture. The adjstable fixed plate comprises a main body, a conductive slide rod and a locking mechanism. The hanging fixture comprises the adjustable fixed plate. The main body is arranged on a conductive plate; the conductive slide rod is slidably arranged between the main body and the conductive plate; sliding clamping jaws are connected to one side of the condutive slide rod; and the locking mechanism is provided with an extrusion structure arranged between the main body and the conductive slide rod so as to tightly press the conductive slide rod onto the conductive plate. Acording to the adjustable fixed plate with the structure, the sliding clamping jaws can adapt to clamping circuit boards with different widths; the conductive slide rod is tightly pressed on the condutive plate through the extrusion structure, and the conductive slide rod is tightly pressed on the condutive plate through an extrusion way so as to bepositioned, so that the contact area of the extrusion structure and the conductive slide rod is large; and meanwhile, a pressing force acted on the conductive slide rod is stable, the condutive sliderod is positioned firmly through thelocking mechanism after sliding in place, and the conductive slide rod stably contacts the conductive plate so as to conduct electricity stably, so that the slidingclamping jaws can be ensured to conduct electricity stably.

The invention discloses a pneumatic compacting self locking type oil tank gas recycling and sealing device arranged on the top of a train. The pneumatic compacting self locking type oil tank gas recycling sealing device is characterized in that a rubber gasket is placed above a tank port, a bottom withholding mechanism is positioned in the tank port, and a vertical pipe lifting air cylinder is arranged in the bottom withholding mechanism; the vertical pipe lifting air cylinder can drive a vertical pipe to connect with the withholding mechanism, and spring bolts and a bottom support arranged in the withholding mechanism are connected with a guiding sliding groove in an outer cylinder through a sliding mechanism; when the vertical pipe drives the withholding mechanism to upward move, the spring bolts can horizontally unfold and can upward compact a tank wall, and the stable reliable pressing force is provided for the rubber gasket arranged on the upper part of the sealing device. The sealing device disclosed by the invention has the advantages that the compacting force is only acted between a sealing cover and the tank port, the influence from the rigidity of a crane pipe and a tank car is small, the provided compacting force greatly exceeds the pressured generated by oil gas, and the sealing effect is very reliable; the sealing device finishes compacting and loosening through a pneumatic assembly; the sealing device is suitable for sealing tank ports of multiple train tanks, the operation is simple, and the sealing device is used for sealing and recycling the top truck loading of a volatile oil product or chemical medium train tank of an oil refinery, a storage field or a chemical engineering unit.

The invention provides an extrusion rod compressing apparatus for an extruder. The apparatus comprises an extrusion rod, an extrusion rod gland, an extrusion rod shaft pad and an elastic bolt structure, the extrusion rod gland is sleeved on the extrusion rod, and the tail end of the extrusion rod is fixed in the extrusion rod shaft pad; and the extrusion rod gland is fixed to the extrusion rod shaft pad through the elastic bolt structure. The extrusion rod compressing apparatus for the extruder guarantees proper compression of the fitting surfaces of the extrusion rod and the extrusion rod gland, and allows a certain gap to be residual between the close surfaces of the extrusion rod and the extrusion shaft pad, and a compressing device containing a disk spring group structure is adopted to compress the gap. The disk spring is elastic, so a certain deviation of the gap can be corrected through adjusting the elasticity of the disk spring; and the elastic coefficient of the disk spring is larger than that of common springs, so the compression force is reliable.

The invention relates to food processing equipment, and especially discloses a caterpillar-type lotus seed shellershelling machine. A bearing base support and a driving motor is installed under the front end of the machine frame, a driving shaft is installed on the bearing base support, one end of the driving shaft is connected to the driving motor, and a synchronous belt is installed on the driving shaft; and the caterpillar-type lotus seed shellershelling machine comprises at least one shelling mechanism. The caterpillar-type Lotus seed shellershelling machine has the following advantages: the shellershelling machine is capable of controlling cutting depths into the lotus seed shells as well as effectively fixing the lotus seeds according to different sizes of the lotus seeds; moreover, the shellershelling machine is capable of carrying out high-efficiency shelling operations on the lotus seeds of various sizes without encountering the phenomenons of failed peeling or broken lotus seeds, so that the qualities of the shelled lotus seeds are improved. In addition, the caterpillar-type lotus seed shellershelling machine is safe and reliable in operations, as well as not easy to leak; two sets of shelling mechanisms are combines, so that the production efficiency is greatly improved and the floor area is reduced. The caterpillar-type lotus seed shellershelling machine is suitable for large-scale, automatic and high-quality lotus seed shelling operations in lotus-seed processing enterprises.

The invention discloses a self-adaptive angle accurate positioning and clamping device for an adjustable blade. The self-adaptive angle accurate positioning and clamping device comprises a puller bolt (1), a clamp body (2), a bracket (3), a small-end positioning block (7), a large-end positioning block (8) and an orientator (11), wherein the puller bolt (1) is fixed to the lower left portion of the clamp body (2) through interference fit of a positioning pin and a compression screw; the upper end of the puller bolt (1) is connected with the bracket (3); the small-end positioning block (7) is arranged at the upper end of the bracket (3); the large-end positioning block (8) is arranged on the upper left portion of the clamp body (2); the orientator (11) is arranged on the upper right portion of the clamp body (2), and a orienting chuck (10) horizontally moves and circumferentially rotates under the action of a spring (12) and is matched with the small-end positioning block (7) and the large-end positioning block (8) to automatically determine the position of the blade. The orienting chuck (10) of the device adopts a symmetrical V-shaped structure, can adapt to the thickness change of a blade profile and the deformation of the blade profile, and can realize accurate positioning through the orientator.

The invention discloses a device for cutting an insulation support for a transformer body, comprising a workbench body. The workbench body comprises a workbench surface, four rectangular tubes which are arranged under the workbench surface to support the workbench surface, three cantilevers which are fixed on the workbench body and bulge out of the workbench surface, two guide rails which are arranged on the cantilevers in parallel and four moving guide plates which can move and be fixed by passing through the two guide rails. The device improves the working efficiency and can conveniently finishing cutting the insulation support for the transformer body and save time and labor, and the cut insulation support has flat paperboard, thus greatly improving the production quality and the production efficiency. The jig saw is held by both hands so that the jig saw is stable with force, and both hands are not contacted with the paperboard of the insulation support, thus avoiding the possibility that the jig saw is liable to hurting own hands in the original cutting mode.

A tension clamp (1) for fastening a rail (S), having a central portion (3), having at least one torsion portion (9, 10) which extends in the lateral direction from the central portion (3), having at least one transition portion (7, 8) which adjoins the torsion portion (9, 10), and having at least one holding arm (13, 14) which is connected to the transition portion (7, 8) and of which the end portion (19, 20), which is assigned to the free end of the holding arm (13, 14), is aligned in an angled manner in relation to the torsion portion (9, 10) as seen in a plan view of the tension clamp (1), wherein, on the angled end portion (19, 20) of the holding arm (13, 14), there is formed a support region (21, 22) which extends over the length of the end portion (19, 20), and the end portion (19, 20) is angled in relation to a part (15, 16), which adjoins said end portion, of the holding arm (13, 14) such that, when the tension clamp (1) is in the fully installed state, the support region (21, 22) is supported over its entire length (Le) in a linear manner on the associated surface (O) of the rail foot (F) of the rail (S) to be fastened.

The invention discloses a mechanical continuously variable transmission. The mechanical continuously variable transmission comprises an input shaft, a driving fixed disc on the input shaft, an outputshaft, a driven fixed disc on the output shaft, a driving movable disc and a driven movable disc which move relative to the fixed discs, wherein a transmission belt is arranged on a V-shaped groove formed by the end faces of the fixed discs and the movable discs; and mechanical continuously variable transmission is characterized by further comprising a retainer and a tensioning device of the transmission belt, the driving fixed disc, the driving movable disc, the driven fixed disc and the driven movable disc are arranged in a retainer inner frame, the retainer is connected with the driving movable disc and the driven movable disc which are located on the left side and the right side of the retainer inner frame through thrust bearings, and the retainer is driven by a variable speed controlmechanism to move left and right in the axis direction of the driving fixed disc. According to the mechanical continuously variable transmission, the pressing force between the V-shaped groove and thetransmission belt is more reliable, so that slipping is avoided, meanwhile, larger pressing force can be adopted, larger torque can be transmitted, engine torque output does not need to be limited, the speed change response is fast, the acceleration performance of an automobile can be fully exerted, a complex oil pressure control system is omitted, the manufacturing difficulty and cost of the transmission are reduced, and the fuel efficiency of an automobile is improved.

The invention discloses an inclination-angle-line-type fiber splicer capable of being opened and used repeatedly. The fiber splicer comprises: a cabinet assembly, a housing assembly, a spring, a card and an opening lid. The cabinet assembly comprises: a box, a brickwork cover, a V-shaped groove metal block, a bolt, a ferrule and a guide block. A floating block is arranged in a middle part of the box. An inserting slot and a brickwork slot are respectively on two sides of the floating block. The V-shaped groove metal block is inlaid in the inserting slot and a V-shaped groove is arranged on the V-shaped groove metal block. The V-shaped groove is arranged opposite to the floating block and a fiber through hole is formed between the V-shaped groove and the floating block. The brickwork cover is attached to the box. A brickwork body on one side of the brickwork cover is pressed into the brickwork slot of the box. A front connection chamber and a rear connection chamber are respectively arranged on two ends of the box. The front connection chamber is connected with the ferrule and the rear connection chamber is connected with the guide block. In the invention, a splice structure of the fiber splicer is compact. The fiber splicer is suitable for an indoor limited fiber panel box space, and is simple and reliable. On-site operation time is short. Difficulty of a fiber splicer terminal can be greatly reduced and total manufacturing costs are low.

The invention provides sawing numerical-control equipment used for right-angled circular-arc chamfering in a board. The sawing numerical-control equipment is characterized by comprising a rack, a sawing mechanism used for board positioning and sawing processing, a z-axis mechanism for driving the sawing mechanism to move back and forth along a z axis, and a board pressing mechanism for pressing and fixing the board, wherein a supporting platform for supporting the board is arranged on the rack; the sawing mechanism is connected to the z-axis mechanism; the board pressing mechanism is positioned above the supporting platform; the sawing mechanism comprises a sawing mounting board, an upper sawing assembly and a lower sawing assembly; both the upper sawing assembly and the lower sawing assembly are arranged on the sawing mounting board; and the sawing mounting board is connected to the z-axis mechanism. The sawing numerical-control equipment can realize right-angled circular-arc chamfering in the board, saves labor post, improves board processing efficiency and board processing precision, can improve processing consistency, is simple in structure, is high in reliability, and can prevent the surface of the board from being damaged.

The invention discloses a tooling for grinding the channel of the inner ring of a bearing, which comprises a positioning shaft connected with the main shaft of a machine tool, a positioning shaft of the inner hole of the inner ring of the bearing, and a fulcrum fixed on the machine tool, the fulcrum of which is hinged between two ends of a pressure plate rod One end of the pressure plate rod is connected to the drive cylinder, and the other end is provided with a pressure plate. When the ejector rod of the drive cylinder is in an extended state, the pressure plate presses the inner ring of the bearing installed on the positioning shaft of the inner hole of the bearing inner ring. The principle of leverage is mainly used, and the power uses compressed air to clean energy, which is both environmentally friendly and clean. The structure is simple and the processing is convenient. The protection and maintenance point is mainly the lubrication of the slewing fulcrum and the cylinder, only once a day. Not a lot of work.

The invention provides a dry-type frication slice power output device applied to farm machinery and a control method for the same. The dry-type friction slice power output device comprises a shell body and an output shaft, wherein a belt wheel is connected to the end of the output shaft remote from the shell body; a gear ring, a friction slice, a pressure bearing device, and a compressing device containing a plunger, an oil cylinder base and a working chamber are disposed in the shell body; the pressure bearing device comprising a pressure bearing plate and a pressure plate is located between the gear ring and the output shaft; a shaft pin coated by a reset spring is disposed on the pressure bearing plate, and the friction slice is disposed between the pressure bearing plate and the pressure plate; and a control system outputs and transmits pressure to the working chamber so as to form compression force, the compression force makes the plunger generate axial motion so as to transmit the compression force to the pressure plate and the pressure bearing plate by a bearing II, the friction slice is meshed, power is transmitted to the output shaft, and power output is completed. According to the invention, the dry-type friction slice is used, and the compression force is formed by a fluid; the control system controls the power output; combination and cutting of working device power can be achieved; the system is reliable; and the system fault rate can be reduced.

The invention discloses an anode hole sealing plug and a sealing method thereof, and particularly relates to a sealing structure of a vacuum gate switch valve. The sealing structure comprises a lifting shaft, air cylinders, a valve, a sealing gasket and a valve body, the four air cylinders are mounted on the lifting shaft; the valve is mounted at the movable end of the air cylinder; a dovetail spigot is machined at the right end of the valve; a sealing ring is mounted at the right end of the valve, and a sealing surface of the sealing ring is a planar sealing surface; a micro-texture sealing surface is arranged at the left end of the valve body; in a sealing state, the planar sealing surface of the sealing ring is in contact with the micro-texture sealing surface of the valve body; the four air cylinders are evenly distributed at the four corner points of the valve and directly face the sealing ring. According to the sealing structure, the sealing effect and reliability of the vacuum gate switch valve are greatly improved, and the sealing structure can be applied to sealing of a semiconductor etching reaction cavity.