38results about How to "Guaranteed vertical force" patented technology

The invention relates to a weighing module which comprises a base and a weighing sensor, wherein the connecting side of the weighing sensor is installed on the base by a fastener; the base is provided with more than two installation holes; both side faces of the weighing sensor are connected with the wall of a spacing groove; the bearing side of the weighing sensor is provided with blind holes in a vertical direction; a top board or/and a bottom board of a frame-shaped rack is provided with installation holes; a bearing piece with spacing holes at the bottom is screwed on the top board of the frame-shaped rack and is fixed with the top board by a fastening bolt; both end surfaces of a rocking column respectively come into contact with the bottom surfaces of the blind holes and the top surfaces of the spacing holes; protective space A is arranged between the upper end surface of the weighing sensor and the bottom surface of the bearing piece; two horizontal spacing bolts are respectively installed on two side boards and positioned on both sides of the weighing sensor; and protective space B is arranged between the end surfaces of the horizontal spacing bolts and both side faces of the weighing sensor. The weighing module has the characteristics of high weighing precision, safety, reliability, convenient installation and maintenance, stable operation, low manufacturing cost and wide application range.

The invention discloses a container overloading and unbalanced loading detection and protection system and method, and a reach stacker, and relates to the field of container overloading and unbalancedloading detection and protection devices and methods. The container overloading and unbalanced loading detection and protection system comprises four weighing sensors mounted in a main body crossbeam, an electric control cabinet, a display module, a printing terminal, an alarming device and an upper computer, wherein the electric control cabinet is integrated with an A/D conversion module, a signal amplification module, a data processing module and a transmission module, and the display module, the printing terminal, the alarming device and the upper computer are mounted in a cab. Weight signals collected by the weighing sensors are sent to the electric control cabinet, result data processed by the electric control cabinet are sent to the display module through the transmission module tobe displayed, sent to the printing terminal to be printed, sent to the alarming device for pre-warning and sent to the upper computer to be shared. In order to overcome the defects of inconvenience and inaccuracy during overloading and unbalanced loading weighing of a container in the prior art, the rapid and accurate container overloading and unbalanced loading detection and protection system andmethod, and the reach stacker are provided, and the container overloading and unbalanced loading limiting case can be alarmed, displayed and recorded in real time.

The invention relates to a sample pull stress corrosion tester comprising a bracket, a corrosion cup, weights, an upper traction rod and a lower traction rod. The sample pull stress corrosion tester is characterized in that the bracket comprises a transverse beam; the upper end of the upper traction rod is connected with the transverse beam and the lower end of the upper traction rod is connected with a sample; the upper end of the lower traction rod is fixedly connected with the bottom end of the corrosion cup and the lower end of the lower traction rod is provided with a weight base; the weights are stacked on the weight base; and a sample clamping device is arranged at the bottom of the corrosion cup. The upper part of the corrosion cup is further provided with safety ropes which are fixedly connected with the transverse beam. The sample pull stress corrosion tester has the beneficial effects that the structure is simple; detected data is accurate and reliable; and different alloy samples can be adjusted by the weights and the utilization is convenient.

The invention relates to a rapid test sample tensile stress corrosion tester which comprises a corrosive cup and a corrosive liquid timing stirring device, wherein the corrosive liquid timing stirring device comprises a main air tube which is inserted into the corrosive cup, branch air tubes connected with the main air tube and an air pump connected with the main air tube; the tester further comprises a bracket, weights, an upper traction rod and a lower traction rod, wherein the bracket comprises a transverse beam; the upper end of the upper traction rod is connected with the transverse beam; the lower end of the upper traction rod is connected with a test sample; the upper end of the lower traction rod is fixedly connected with the bottom end of the corrosive cup; a weight base is arranged at the lower end of the lower traction rod; the weights are stacked on the weight base; a safety rope which is fixedly connected with the transverse beam is further arranged at the upper part of the corrosive cup; and the tester further comprises a test sample breakage timing alarm device. The tester has the beneficial effects that the structure is simple, the detection data are accurate and reliable, and different alloy test samples can be adjusted by the weights, with convenience in use.

The invention provides a device used for testing interlaminar interfacial shear strength of a fiber composite material bar, and belongs to the technical field of devices used for testing interlaminarinterfacial shear strength of fiber composite material bars. The center of a bearing pedestal is provided with a cavity for a bar to be tested. The bearing pedestal below the cavity for the bar to betested is provided with a through hole. A fixing top cover is threaded to the bearing pedestal. The center of the fixing top cover is provided with a pressing bar hole. A force bearing pressing bar isconnected to the pressing bar hole in the fixing top cover in an up-down sliding manner. The top end of the force bearing pressing bar is fixed to a force bearing bar top disc. The inner hole diameter of the bearing pedestal and the height of the cavity can be designed according to different fiber bar diameters and testing heights, and shear strength of different cross sections can be obtained byadopting different pressing bar diameters, and therefore the application range of the device is wide. The fixing top cover firmly fixes the force bearing pressing bar to the bearing pedestal throughthreaded connection, thus ensuring vertical forcing applying on a fiber bar in a testing process of the device, and avoiding eccentric force applying.

The invention discloses a reaction frame testing method for earth nail drawing tests. The reaction frame testing method is realized through a reaction frame consisting of a base and a stress support. The base is connected with the stress support through screws, and a bearing surface of the stress support can be guaranteed to be coaxial with an earth nail by adjusting the screws. A jack is mounted on the stress support to form a jack reaction system. During testing, the earth nail can be fixed with the jack after being lengthened, and perpendicular stress is guaranteed by adjusting the screws. By adjusting the screws between the stress support and the support, stress surface on the wall at any gradient can be adjusted optionally, the perpendicular stress of the earth nail can be guaranteed, and testing speed and testing quality of the earth nail can be improved greatly.

The invention provides an angle-adjustable wharf berthing buffering device and belongs to the field of harbor machinery. The angle-adjustable wharf berthing buffering device comprises pre-buffering modules, a main buffering module, a supporting module and a base module. The base module is fixed to the ground of a wharf. The supporting module is arranged on the base module. The main buffering module is connected with the supporting module through a spherical hinge. The pre-buffering modules are connected with the main buffering module and the supporting module through bolts. The angle-adjustable wharf berthing buffering device can achieve effective buffering when ships are pulled into shore.

The invention discloses a combined type bolt for a car hub. The bolt comprises a lower bolt part and an upper bolt part; a connecting inner thread is arranged on the inner wall of the lower bolt part,a connecting outer thread is arranged on the upper bolt part, the upper bolt part and the lower bolt part are detachably connected, the lower bolt part is provided with a mounting nut, the upper boltpart comprises a screw, a connecting block, a fender and a hexagonal bolt head, the lower bolt part and the upper bolt part are detachably connected through cooperation of the connecting inner threadand the connecting outer thread, the lower bolt part can be independently used as a dual-head bolt to be used, a first guide polish rod segment smaller than the outer diameter of a lower bolt secondsegment is arranged below the lower bolt second segment, and the probability of thread wire sliding is reduced; due to the fender, rain water and mud are prevented from permeating into a screw hole along the bolt, and the service life of the bolt can be prolonged; through an inner hexagon bolt hole formed in the middle of the hexagon bolt head, the lower bolt part is provided with the mounting nut, and mounting and dismounting of the bolt are more labor-saving.

The invention provides a mill roll system for flattening an irregular metal part and a flattening rolling method. The roll system is characterized in that an upper working roll and a lower working roll each comprises at least one curved line part and two straight line parts, wherein two ends in the length direction of each roll body are the straight line parts, and the straight line parts of the two ends are 1 to 5mm in length; included angles between tangent lines at a front end point and a rear end point of each curved line part and the horizontal line range from 0 to 75 degrees; the curved line parts are in smooth connection with each other, or the curved line parts are in smooth connection with the straight line parts. The flattening method comprises the following steps: (1) performing the roll bending rolling process for the irregular metal part, and flattening at one to ten times; (2) flattening in a finishing pass manner. With the adoption of the roll system and the flattening rolling method, the irregular metal parts with equal thickness or different thicknesses and being 0.2 to 10mm in thickness can be efficiently flattened; in addition, the damage, caused by the structural diversity, of the irregular part can be effectively avoided; a flattened board is high in surface quality, and the board can remain the original thickness.

The invention discloses an inner hexagon bolt used on an automobile hub. The inner hexagon bolt comprises a bolt head mechanism, an elastic ring, a flange face and a screw mechanism. The bolt head mechanism comprises a hexagon bolt head and a waterproof tabletop. An inner hexagon bolt hole is formed in the middle portion of the hexagon bolt head. The screw mechanism comprises an installation section, a smooth-surface screw section, a threaded section and a guide polished rod section. Multiple tooth ripple grooves are formed in the lower surface of the flange face. According to the inner hexagon bolt, by arranging the elastic ring, certain tensile force can be kept between two connected parts all the time by the inner hexagon bolt through deformation of the elastic ring, and connection stability is ensured; the guide polished rod conducts perpendicular guiding before the bolt and a threaded hole are engaged, perpendicular stress of the bolt is ensured, and the probability of thread sliding is lowered; by arranging the waterproof tabletop above the flange face, it is avoided that because of erosion of rainwater, the bolt rusts and is damaged; and by forming the tooth ripple grooves in the lower surface of the flange face, the connection stability between the two connected parts is further ensured.

The invention discloses automatic crushing equipment used for production of sulphate-resistant cement. The automatic crushing equipment used for production of the sulphate-resistant cement comprises a rack, rotating hammer assemblies and an impact plate assembly, wherein a feeding opening is formed in the upper portion of the rack, a semi-cylindrical hollowed-out discharging cage is below the feeding opening, the multiple rotating hammer assemblies are arranged in the discharging cage and coaxial with the discharging cage, the adjacent rotating hammer assemblies are connected in a staggered mode through a spindle in series, one end of the spindle is connected with one side of the rack through a bearing, and the other end of the spindle is connected with the rack through a power-receiving axial assembly; the impact plate assembly is arranged at the side, away from the feeding opening, above the rotating hammer assemblies; and a batten is arranged below the impact plate assembly, and the batten and an edge of each rotating hammer assembly are at a certain distance. Compared with the prior art, the automatic crushing equipment used for production of the sulphate-resistant cement is suitable for putting of different materials so that a stable discharging shape can be ensured.

The invention relates to a novel electric reactor iron core pillar mounting method and tool, and belongs to the technical field of transformer mounting equipment. According to the technical scheme, hanging legs (8) are connected with the end of a cross hanging beam through turnbuckles (5), the center of the cross hanging beam is connected with a disc (2), a hanging pate (1) is installed on the upper surface of the disc (2), and a steel wire rope (7) is connected with the hanging plate (1) through a shackle (6); supporting plates (10) are arranged at the inner sides at the bottoms of the hanging legs, screw holes are formed in the outer sides of the bottoms of the hanging legs, the top of auxiliary hanging legs are of screw structures, the screw structures are matched with the screw holes of the outer sides of the bottoms of the hanging legs, and the bottoms of the hanging legs (8) are connected with the tops of the auxiliary hanging legs (9); auxiliary supporting plates (11) are arranged at the inner sides of the bottoms of the auxiliary hanging legs. The novel electric reactor iron core pillar mounting method and tool have the advantages that it can be guaranteed that hanging tools are vertically stressed, an electric reactor core pillar is safely and simply installed, the design is novel in structure, the operation is simple and reliable, and the safety is high.

The invention discloses a novel spline shaft upsetting forging die structure and relates to the field of spline shaft machining. The novel spline shaft upsetting forging die structure comprises an upsetting upper die and an upsetting lower die, a blank channel is arranged in the upsetting upper die in a penetrating mode, the inner diameter of the bottom of the blank channel is expanded to form a concave connector, a convex connector is arranged at the position, corresponding to the concave connector, of the top of the upsetting lower die, the convex connector is matched with the concave connector in an embedded manner, and the upsetting upper die is supported on the upsetting lower die. A spring groove is formed in the convex connector and used for containing a spring, a step face is arranged on the inner wall of the top end of the spring groove, the rod part of a blank is inserted into the blank channel and abuts against the step face, and the upsetting portion of the blank is exposed out of the upper portion of the blank channel. One end of the spring abuts against the bottom of the spring groove, and the other end of the spring abuts against the end face of the rod part, so that the blank moves up and down along the blank channel. The novel spline shaft upsetting forging die structure has the beneficial effects that the ejection vertical force is guaranteed, the material taking efficiency is improved, and the overall spline shaft upsetting efficiency is doubled.

The invention discloses a floor type brake master cylinder performance test device. The device comprises an air source system, a fixed base, an adjustable support and a pressing rod mechanism; the adjustable support is arranged on the fixed base; a brake master cylinder is mounted on the adjustable support; the pressing rod mechanism is rotatably mounted on the top surface of the fixed base; the rotating shaft center is overlapped with the pedal rotating shaft center of the brake master cylinder; a pedal force sensor is arranged at the position, 160 mm away from the pedal rotating shaft of thebrake master cylinder, of the upper surface of the pedal; the pressing rod mechanism is provided with a roller abutting against the pedal force sensor through a support hanging rod, the central axisof the support hanging rod is perpendicular to the upper surface of the pedal force sensor, and a displacement sensor is fixed to the side face of the adjustable support and connected with the end ofthe pedal through a pull wire. The invention further discloses a floor type brake master cylinder performance test method, the pedal angle advancing amount can be accurately calculated through testingand calculation of the displacement sensor, the pedal angle advancing amount is not directly related to the starting point of the pull wire of the displacement sensor, and high applicability is achieved.

The invention discloses a rust-proof bolt for an automobile hub. The rust-proof bolt comprises a bolt head mechanism, a connecting block, a screw mechanism and a fender, the bolt head mechanism and the connecting block below are stamped and riveted through a stamping machine, the connecting block and the screw mechanism below are stamped and riveted through the stamping machine, the screw mechanism comprises a transition section, a first threaded section, a second threaded section and a guide polished rod section, and the fender can be installed on the first threaded section in an up-and-downadjustable manner. According to the rust-proof bolt, the guide polished rod section is arranged below the screw mechanism, vertical stress of the bolt in the fastening process is guaranteed, and the thread slipping rate is reduced; the fender is matched with the connecting block and the screw mechanism, rainwater, mud and the like are prevented from seeping into a screw hole along a gap of a screwor a bolt head, and the service life of the bolt is prolonged; and an inside hexagonal bolt hole is formed in the middle portion of the bolt head mechanism, even though a hexagon bolt head outsides deforms, bolt quick demounting can be carried out through a hexagonal socket still, and the service life of the bolt is prolonged.

The invention discloses a powder bagging weight sorting and shaping all-in-one machine, and relates to the technical field of bagging. The powder bagging weight sorting and shaping all-in-one machinemainly aims to solve the problems that a traditional powder bagging weight sorting and shaping split body is complex in structure, and large in size and occupied site. The powder bagging weight sorting and shaping all-in-one machine comprises two supporting racks, a shaping mechanism and two conveyors arranged on the supporting racks respectively. A supporting plate is arranged between one supporting rack and the conveyor installed on the supporting rack. A spherical sensor and a weight sensor are arranged between the supporting plate and an ejector rod of each supporting rack. A removing mechanism is installed on the other supporting rack and provided with a controller which electrically controls the removing mechanism to work. The controller is further connected with the spherical sensors and the weight sensors through wires. The powder bagging weight sorting and shaping all-in-one machine is simple and compact in structure, capable of effectively reducing the occupied space and achieving automatic sorting and shaping, easy, convenient and fast to operate, accurate in detection and high in practicability.

The invention relates to a thread-slipping-resistant check bolt which comprises a bolt head, a screw and threads. The bolt head is cylindrical, end face ratchets are arranged on the upper end face of the bolt head, and the check direction of the end face ratchets is identical to the heading direction of the threads; an outer hexagon bolt connector is further arranged at the upper end of the bolt head and auxiliary end face ratchets meshed with the end face ratchets are arranged on the lower end face of the bolt head. After the bolt is installed in a device, the outer hexagon bolt connector is screwed through a hexagon spanner, the auxiliary end face ratchets drive the end face ratchets meshed with the auxiliary end face ratchets to rotate, and therefore the bolt is driven to be screwed. After the bolt is screwed tightly, the outer hexagon bolt connector is taken out, the bolt can not be detached from the outer end through a common measure and a common tool any more, and therefore the anti-theft purpose is achieved. Meanwhile, a guide polish rod with the diameter smaller than that of outer threads of the bolt is designed at the end, far away from the bolt head, of a thread screwing portion, the guide polish rod conducts perpendicular guidance before the bolt and a threaded hole are meshed, the perpendicular stress of the bolt is guaranteed, and the probability of thread slipping is reduced.