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148results about How to "Force balance" patented technology

Stacking device for tire production

The invention relates to the technical field of tire stacking, in particular to a stacking device for tire production. Comprising a conveying base; the fixing plate is fixedly connected to the conveying base; the first motor is fixedly connected to the fixing plate, and an output shaft of the first motor is provided with a straight gear; the sliding plate is connected to the fixed plate in a limiting and sliding mode, the sliding plate is fixedly connected with a rack frame, and the rack frame is meshed with the straight gear; the two clamping plates are connected to the sliding plate in a limiting and sliding manner; the baffle shaft is connected to the sliding plate in a sliding mode, and the two clamping plates are both connected with the baffle shaft in a sliding mode. According to the tire stacking device, when tire stacking is clamped, pulling force is applied to the force reducing shafts, stress concentration at the connecting position of the external fixing plate and the sliding plate and the connecting position of the clamping plates and the sliding plate is counteracted, the situation that the sliding plate and the two clamping plates are stuck due to deformation caused by long-time stress concentration is avoided, and therefore it is guaranteed that the tire stacking speed is stable.
Owner:SHANDONG JIACHENG RUBBER IND CO LTD

Disintegration instrument capable of eliminating turbid water in loess disintegration process and use method of disintegration instrument

The invention belongs to the field of geological research, and discloses a disintegration instrument capable of eliminating water turbidity in the loess disintegration process and a use method thereof, the disintegration instrument comprises a support, a transparent water tank, a camera and a data acquisition device; a water pump is arranged in the transparent water tank; a plurality of stacked filtering water tanks are arranged on the transparent water tank, a seepage hole-containing water pipe is arranged in the filtering water tank on the top layer, and one end of the seepage hole-containing water pipe is connected with a water outlet pipe arranged on a water outlet of the water pump; fully-paved filter cotton is arranged at the bottom of each filter water tank, every two adjacent layers of filter water tanks are connected through a bottom filter type drain pipe, a connected filter water return pipe is arranged on a water blowing port of the bottom filter type drain pipe of the filter water tank at the bottom layer, and the other end of the filter water return pipe is located in the transparent water tank; a tension sensor is arranged on the bracket, a connecting ring is arranged on the tension sensor, a filter screen for bearing a loess sample is arranged on the connecting ring, and the filter screen is positioned in the transparent water tank. And suspended sediment generated by the test can be effectively removed, and the accuracy of data is ensured.
Owner:XIAN CENT OF GEOLOGICAL SURVEY CGS

Bluetooth earphone

The utility model relates to the technical field of earphones, in particular to a Bluetooth earphone. Comprising a shell, an ear wing and an elastic locking assembly, the shell comprises an imbedding part used for being imbedded into the ear of a user, the imbedding part comprises a peripheral surface wrapped by the ear, the peripheral surface comprises a clamping end and a through opening which are opposite to each other in the first direction and are arranged at an interval, a mounting cavity is formed in the imbedding part, and the through opening is communicated with the mounting cavity; the ear wing is movably arranged in the mounting cavity in the first direction, at least part of the ear wing is exposed out of the through opening, so that the ear wing can be matched with the clamping end to limit and mount the Bluetooth earphone, and a connecting structure is arranged on the ear wing; the elastic locking assembly is arranged in the mounting cavity and is connected with the connecting structure, and the clamping block and the clamping end matched with the clamping block are arranged, so that the Bluetooth earphone is better in wearing stability, and the risk of falling of the Bluetooth earphone is lower. And the elastic locking assembly is arranged so that the position of the ear wing can be locked when the ear wing retracts, the size is reduced, and carrying and storage are more convenient.
Owner:肖金国

Rotating seat locking mechanism

The invention discloses a rotary seat locking mechanism which comprises a fixed disc and a movable disc rotationally matched with the fixed disc, a gear ring is fixedly installed on the fixed disc, and the gear ring is provided with an annular tooth part; a locking block and a transmission assembly controlling the locking block to slide are installed on the movable disc in a sliding mode, and locking teeth matched with the annular tooth part are arranged on the side portion of the locking block. The transmission assembly controls the locking block to slide, and the locking teeth can be switched between meshing and separation of the locking teeth and the annular tooth part. The stepless locking device has the beneficial effects that stepless locking is achieved, noise or shaking is avoided, the locking effect is good, and use is flexible.
Owner:ADIENT (CHONGQING) AUTOMOTIVE COMPONENTS CO LTD

Turnover hoisting mechanism and turnover hoisting method

The invention relates to a turnover hoisting mechanism and a turnover hoisting method, and relates to the field of building construction, the turnover hoisting mechanism comprises a hoisting frame, a hoisting assembly and a turnover assembly, the hoisting assembly is fixedly or detachably connected with the hoisting frame, and the turnover assembly is fixedly connected with the hoisting frame. The overturning and hoisting method adopts the overturning and hoisting mechanism to overturn and hoist the prefabricated part. The overturning and hoisting mechanism has the beneficial effects that when the overturning and hoisting mechanism is used for overturning or hoisting, only a hoisting belt or a rope connected with a hoisted object needs to be replaced, the working efficiency of hoisting transportation and overturning operation of the integrated module house and the large building component is improved, the investment of production equipment is saved, the equipment is light, convenient to move and low in cost, and the production cost is reduced. And a fixed field is not occupied.
Owner:ZHEJIANG JIANSHU ENGINEERING TECHNOLOGY CO LTD

Portable banner automatic storage device

The invention discloses a portable banner automatic storage device in the field of banner storage, comprising: a storage cylinder, one end of which is open and the cylinder wall of which is provided with a storage groove; the winding assembly is rotationally arranged in the storage cylinder, and a fixing structure for fixing the banner is arranged on the circumferential surface of the winding assembly; the driving assembly is arranged in the middle of the wall surface of the storage barrel, and the two ends of the winding assembly are synchronously driven through a motor structure and a transmission assembly; the winding device has the beneficial effects that the driving motor is arranged in the middle of the wall surface of the storage barrel, and the two ends of the storage barrel are synchronously rotated through the transmission assembly, so that the stress of the winding assembly and the driving motor is more balanced, the structure is more stable, and the service life is longer.
Owner:MIANYANG CITY UNIV

Movable valve checking table

The invention belongs to the technical field of verification devices, and particularly relates to a movable valve verification table which comprises a control box and a verification box. A bearing plate is installed on the clamp disc, a clamping air cylinder is installed in the verification box, a connecting rod is installed on the clamping air cylinder, the upper end of the connecting rod is connected to the bearing plate in a sliding mode, and an air pipe is connected to the lower surface of the bearing plate; a clamp disc is installed on the verification box, pressing rods are installed on the clamp disc through a rotating shaft rod, and the pressing rods are in lap joint with one another; the bearing plate is provided with a sealing gasket, the pressing rods clamp a flange plate on a valve to be detected on the bearing plate, and the mutually lapped surfaces of the pressing rods are subjected to roughening treatment; the valve piece checking device is simple in structure, can check valve pieces with different nominal drift diameters, facilitates disassembly and assembly of the valve pieces, improves the working efficiency of valve piece checking, can guarantee the sealing performance in the checking process, and improves the checking accuracy.
Owner:CHINA RAILWAY COMM RAIL OPERATION CO LTD

Double-cylinder driving link type guide vane adjusting mechanism and adjusting method thereof

PendingCN122504734Aforce balancemotion synchronization
This invention relates to a dual-cylinder driven linkage type guide vane adjustment mechanism and its adjustment method, comprising a hydraulic cylinder-driven linkage drive mechanism and an electro-hydraulic servo control system. The guide vane in the hydraulic cylinder-driven linkage drive mechanism is fixed on a guide vane rotation shaft. The two ends of the guide vane rotation shaft are rotatably connected to a guide wheel support and a guide vane support seat, respectively. A fixed frame is rotatably connected to the guide vane support seat. Multiple small rotating shafts are evenly arranged along the circumference of the fixed frame, and these small rotating shafts are connected to the guide vane rotation shaft via support pins. A first hydraulic cylinder and a second hydraulic cylinder are movably connected to both sides of the fixed frame, respectively. The controller T3 in the electro-hydraulic servo control system controls the electro-hydraulic servo valve T9 to operate. The first and second hydraulic cylinders are cross-connected, thereby driving the extension of the first hydraulic cylinder and the retraction of the second hydraulic cylinder synchronously. This invention provides a guide vane adjustment mechanism with symmetrical action, rapid response, high precision, and convenient maintenance, suitable for the hydraulic speed control system of high-power wind turbine units.
Owner:HANGZHOU ADVANCE GEARBOX GRP

A copper foil six-roller mill strip surface cleaning device

The invention discloses a surface blowing device for a copper foil six-roller rolling mill strip, belonging to the technical field of copper foil rolling mill equipment, comprising a mounting frame arranged on a rolling mill body, a supporting roller arranged on the mounting frame, a surface blowing air knife and a side blowing air knife arranged between the supporting roller and the copper foil rolling mill, two surface blowing air knives are arranged symmetrically about the copper foil strip up and down, two side blowing air knives are arranged, and the two side blowing air knives are located on both sides of the copper foil strip, the upper and lower surface blowing air knives are connected together by a connecting component, and the side blowing air knife is connected to the connecting component, a driving mechanism is arranged on the mounting frame, and the driving mechanism is connected to the supporting roller by a sprocket chain component, and the driving mechanism is used for driving the surface blowing air knife to swing and blow the surface of the copper foil strip. The invention solves the problem in the prior art that the rolling oil on the surface of the copper foil rolling mill is not thoroughly blown after rolling the copper foil.
Owner:LUOYANG TONGYAN INTELLIGENT EQUIP CO LTD

Pipeline placement damping support for civil engineering

The utility model provides a pipeline placement damping support for civil engineering, which relates to the field of civil engineering and comprises a first pipeline clamping plate, a second pipeline clamping plate and a damping base. Damping bases are inserted into the lower ends of the first pipeline clamping plate and the second pipeline clamping plate, spring dampers are fixedly embedded into the inner sides of the damping bases, arc-shaped supporting plates are connected to the upper ends of the spring dampers through connecting plates, and the side ends of the arc-shaped supporting plates are fixed to the side faces of the first pipeline clamping plate and the second pipeline clamping plate through studs. And an inserting convex block is welded to the left side of the damping base. The problem that in the prior art, a single pipeline is placed in a pipe shell of a triangular support, so that load imbalance is caused, and stable supporting is difficult to achieve is solved.
Owner:TIANJIN JIANCHENG CONSTRUCTION ENGINEERING CO LTD

A vacuum melting furnace with a feeding mechanism

The present invention relates to the technical field of melting furnace equipment, and specifically discloses a vacuum melting furnace with a feeding mechanism, comprising: a melting device and a feeding mechanism, wherein a crucible is arranged on the melting device, and the feeding mechanism comprises a frame and a limit block, wherein the frame is located above the crucible, a positioning ring is arranged on the frame, and a plurality of limit blocks are distributed at intervals on the circumference of the positioning ring, and each of the limit blocks is connected to the frame through a first elastic member, and the limit blocks are slidably matched with the frame; the vacuum melting furnace with a feeding mechanism of the present invention applies inward pressure to the material through the limit blocks, and a plurality of first elastic members act together to balance the force on the material, so that the material can fall smoothly into the crucible to prevent the material from colliding with the crucible.
Owner:SHAANXI DIANRUN TITANIUM IND CO LTD

Wear-resisting water passing groove brake pad

The utility model discloses a wear-resisting water passing groove brake pad which comprises a brake pad body, a cross groove, a first wear-resisting layer, a second wear-resisting layer and a heat dissipation structure, the brake pad body is of an arc-shaped structure, and the cross groove is formed in the upper end face of the brake pad body and extends towards the edge of the brake pad body. A first wear-resistant layer is arranged on the upper surface of the brake pad body, a second wear-resistant layer is arranged on the lower surface of the brake pad body, a heat dissipation structure is arranged in the center of the lower end face of the brake pad body, and buffer clamping springs are symmetrically arranged on the lower end face of the brake pad body. The buffer clamping spring is used for keeping the brake pad body stressed gently and absorbing vibration force, the first wear-resisting layer and the second wear-resisting layer are low-alloy high-strength steel wear-resisting plates, powder scraps generated by friction can be rapidly discharged through the cross-shaped groove, damage to the whole brake pad is avoided, and wear resistance and firmness are high.
Owner:HAIYAN OU YATE AUTO PARTS CO LTD

Self-adaptive wind-resistant vibration-suppression louver unit capable of restraining all louvers

ActiveCN224282445UEffective collaborative constraintsImprove wind resistance and vibration suppression capabilitiesSpecial door/window arrangementsClassical mechanicsStructural engineering
A self-adaptive wind-resistant and vibration-suppressing shutter unit capable of constraining all shutters belongs to the technical field of ventilation and air conditioning and comprises a shutter unit, a driving assembly and a self-adaptive wind-resistant and vibration-suppressing device. Each shutter unit comprises a window frame and M shutters, and M is larger than or equal to 3; the shutters are hinged to the window frame through rotating shafts arranged at the upper and lower ends of the shutters; the driving assembly is connected with M shutters of the shutter unit; the self-adaptive wind-resistant vibration suppression device is a self-adaptive flexible adsorption belt and is arranged on the windward side of the shutter unit. The two ends of the self-adaptive flexible adsorption belt are fixedly connected to the leftmost shutter and the rightmost shutter of the shutter unit respectively to form flexible constraint, and the middle part of the self-adaptive flexible adsorption belt is adsorbed to the middle shutter in a self-adaptive mode through the windward side air inlet pressure effect to form single-side contact constraint; shutters at the adjacent ends of the left and right adjacent louver units are hinged through rigid connecting rods, and two-force component constraint is formed. Effective cooperative constraint of all the shutters is comprehensively achieved, and then the wind resistance and vibration suppression effects of the shutters are improved.
Owner:济南蓝辰能源技术有限公司

Steel strip misalignment detection device

ActiveCN224707431UDoes not hinder normal movementforce balance
This utility model provides a steel strip misalignment detection device, comprising: a frame, a guide roller, an offset structure, a measuring structure, and a protective structure; the frame extends horizontally along the direction perpendicular to the movement of the steel strip; the offset structure is slidably connected above the frame along its extension direction; the guide roller is cylindrical, with its axis vertically positioned and rotatably connected to the offset structure, and a guide roller is provided at each end of the offset structure, with the steel strip located between the two guide rollers, and the guide rollers and the steel strip in a rolling connection; the measuring structure includes an electronic ruler and an electronic ruler support, the electronic ruler support being fixed to the frame; the electronic ruler passes through and is slidably connected to the electronic ruler support along the sliding direction of the offset structure; the electronic ruler displays the relative sliding distance with respect to the electronic ruler support; the protective structure is fixed to the frame and covers the offset structure, with a gap between the upper surface of the protective structure and the lower surface of the steel strip; and the upper surface of the protective structure is higher than the bottom end of the guide roller. This application has the effect of balancing the forces on both sides of the steel strip, resulting in more accurate detection.
Owner:SHANGHAI NAUT BELTS CO LTD

A cotton feeding chain bed and its transport method

ActiveCN116331739Bavoid damageconstant structural strengthMechanical engineeringIndustrial engineering
The application discloses a cotton feeding chain bed and a transportation method thereof, and relates to the technical field of cotton processing equipment. The cotton feeding chain bed comprises at least a first chain bed part and a second chain bed part. The first chain bed part and the second chain bed part can be connected in a transverse direction or a longitudinal direction to form a main body of the chain bed. The first chain bed part and the second chain bed part are stacked in a vertical direction to form an assembly during transportation. The first chain bed part and the second chain bed part are connected by a plurality of first toolings on one side and connected by a plurality of second toolings on the other side. The chain bed is divided into at least two parts, and the assembly is formed by stacking the two parts. The assembly can be loaded into a container, and the chain bed is protected during transportation. The structure of the combined chain bed maintains the original size, and the equipment structure strength and stability remain unchanged during use. The production efficiency remains unchanged.
Owner:山东天鹅棉业机械股份有限公司 +1

Electrical control upturning side door for rail logistics vehicle and rail vehicle

The invention discloses an electrically-controlled upturning side door for a rail logistics vehicle and a rail car, and relates to the field of railway vehicles, the electrically-controlled upturning side door comprises a side door mechanism which comprises two side doors symmetrically arranged on the two sides of a carriage, and the tops of the side doors are hinged to the carriage; the two opening and closing mechanisms are arranged between the two side doors, each opening and closing mechanism comprises an electric hydraulic push rod, the electric hydraulic push rods are in driving connection with the side doors, and when the output ends of the electric hydraulic push rods extend, the side doors are switched to be in an open state; the upturning side door adopts the electric hydraulic push rod as power, is suitable for upturning structure side doors with larger structural sizes, meets the requirements of automatic opening and closing, continuous arrangement and the like of underground logistics vehicles, and realizes that a forklift truck can fork cargoes at different positions from two sides of the vehicles without entering a carriage.
Owner:CRRC TAIYUAN CO LTD

Spare tire rack panel

ActiveCN224146041Uforce balanceMeet the connection requirementsSpare wheel arrangementsSpare tire
A plurality of connecting holes matched with connecting bolts are formed in a panel body of the spare tire frame panel, the connecting holes comprise first positioning connecting holes and at least one pair of symmetrical connecting holes, the first positioning connecting holes are formed in one side of the panel body and are in a vertical strip shape, and the second positioning connecting holes are formed in the other side of the panel body and are in a vertical strip shape. The symmetrical connecting holes are formed in the other side of the panel body, and each pair of symmetrical connecting holes and the first positioning connecting hole respectively form a five-hole, six-hole or eight-hole spare tire connecting structure by taking the vertical center line of the first positioning connecting hole as an axial symmetry line. All the auxiliary connecting holes are matched with the first positioning connecting holes to form a three-point mounting structure which is matched with spare tires with different sizes and different hole numbers, and a user connects one hole position of the spare tire with the first positioning connecting holes, so that the other hole positions to be used can be quickly judged, and quick connection is realized. Meanwhile, only ten holes are used, and the hub connecting hole can be generally used for connecting holes of 10 types of hubs with different pitch circle sizes.
Owner:XIAMEN XINDAYANG METAL PROD CO LTD

Double-rod angle ejection structure with inclined ejection block

The double-rod angle ejection structure comprises a connecting rod fixedly arranged in a mold assembly, a bottom sliding seat arranged on an ejector plate of the mold assembly in a sliding manner, an inclined ejector rod movably arranged in the mold assembly in a guiding manner, and the inclined ejector block arranged at the top end of the inclined ejector rod, an angle ejector seat is obliquely arranged on the bottom sliding seat, the bottom end of the angle ejector rod is connected to the angle ejector seat in a sliding mode, the connecting rod is obliquely arranged, the inclination direction of the connecting rod is opposite to that of the angle ejector rod, and the connecting rod further obliquely penetrates through the bottom sliding seat; when the ejector plate moves, the bottom sliding seat can slide obliquely along the connecting rod and transversely slide relative to the ejector plate, and the inclined ejector rod can slide relative to the inclined ejector seat and drives the inclined ejector block to obliquely eject a product under the jacking action. According to the utility model, the problem that the ejector rod is stuck when the inclined ejector block ejects a large-angle structure can be solved, and the ejection stroke of the inclined ejector block is reduced.
Owner:CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD

A sliding door device for aircraft engine test equipment

The present invention belongs to the field of aero-engine test equipment design, and discloses a sliding door device for aero-engine test equipment, the sliding door device comprising a cabin and a cabin door, the upper door frame and the lower door frame of the cabin door frame on the cabin are both provided with horizontal tracks, the horizontal tracks include fixed tracks and movable tracks, and a lifting mechanism for driving the movable tracks to rise or fall is provided below the movable tracks; the cabin door is slidingly arranged on the cabin, and the lower surfaces of the upper frame and the lower frame of the cabin door are both provided with a driving wheel group sliding on the horizontal track; when the cabin door slides on the horizontal track to close the cabin, the driving wheel group is located above the movable track, and after the lifting mechanism drives the movable track to descend, the driving wheel group is separated from the movable track. The sliding door device of the present invention can achieve uniform force on the cabin door and the cabin under negative pressure conditions through the movable track, the lifting mechanism, and the setting of the inclined blocks that cooperate with each other between the axial door hook and the cabin door and the cabin door frame.
Owner:AECC SICHUAN GAS TURBINE RES INST

Single-double shared cable clamp

The utility model discloses a single-double sharing type cable clamp which comprises a base, a first cover plate is hinged to one side of the base, a second cover plate is hinged to the other side of the base, a first hinge joint is arranged at the free end of the first cover plate, and a second hinge joint is arranged at the free end of the second cover plate; the cable clamp further comprises a third cover plate, one end of the third cover plate is provided with a first hinge joint, and the other end of the third cover plate is provided with a second hinge joint. In a single-cable installation mode, the third cover plate is cancelled, and the first cover plate and the second cover plate are connected through the first hinge joint and the second hinge joint; in a double-cable installation mode, the first cover plate and the second cover plate are unfolded, one end of the third cover plate is hinged to the first cover plate, and the other end of the third cover plate is hinged to the second cover plate; compared with the prior art, the cable laying clamp can be freely switched between double-wire laying and single-wire laying according to actual working conditions, cable laying requirements under different working conditions are met, and the adaptability of the clamp is improved.
Owner:SICHUAN LIANCHANG IND DESIGN CO LTD

End plate structure and rotor assembly

The utility model provides a kind of end plate structure and rotor assembly, it is related to motor technical field.End plate structure includes end plate and elastic sheet.End plate is provided with multiple through holes, multiple through holes are annularly distributed around the center of end plate, at least two elastic sheets of opposite or back-to-back setting are provided at each through hole.Multiple through holes and multiple magnetic steel holes set on rotor core are one-to-one corresponding arrangement, therefore, at least two elastic sheets set on the same through hole can effectively play buffering effect to the magnetic steel set in corresponding magnetic steel hole, and at least two elastic sheets of opposite or back-to-back setting not only can increase the contact area of elastic sheet and magnetic steel, to improve buffering effect, but also can make the stress of magnetic steel relatively balanced, ensure that magnetic steel is smoothly in place under the buffering effect of elastic sheet.Visible, the end plate structure provided in the utility model embodiment effectively avoids the problem that magnetic steel and end plate directly collide and appear breakage and jam etc during assembly, significantly improves assembly quality.
Owner:ANHUI AOSONG REFRIGERATION EQUIPMENT CO LTD +2

Anti-loosening electromechanical equipment electric connector

The invention relates to the field of electric connectors, in particular to an anti-loosening electromechanical equipment electric connector which comprises a male head, a female head and a locking assembly. The male head comprises a plug shell; the female head comprises a sleeve shell; the locking assembly comprises a groove, a hanging block and a steel clamp. The end surface of the hanging block close to the female head is a matching surface; the matching surface is an inclined surface inclined relative to the plugging direction of the male head and the female head; the end surface, far away from the female head, of the hanging block is a locking surface; the steel clamp comprises a rotating rod and an auxiliary structure; the middle of the rotating rod is bent towards the center of the sleeve shell to form a clamping protrusion. When the male head and the female head are connected in an inserted mode, the auxiliary structure limits rotation of the rotating rod, the clamping protrusion abuts against the locking face, the hanging block is locked in the groove, and before the male head and the female head are pulled away, the auxiliary structure exerts force in the inserting direction to drive the rotating rod to rotate, the clamping protrusion rotates away from the locking face, and the hanging block is unlocked. The direction of the unlocking action of the clamping protrusion and the hanging block of the rotating rod is parallel to the inserting direction of the male head and the female head, operation in a narrow and compact space is facilitated, and the connecting efficiency of the male head and the female head is improved.
Owner:JIANGSU SECURITY TECH CARRER ACADEMY +1

Gearbox control mechanism capable of avoiding gear selecting clamping stagnation and having reverse gear hand feeling

The utility model relates to a gearbox control mechanism, and provides a gearbox control mechanism which can avoid gear selection clamping stagnation and has a reverse gear hand feeling in order to solve the problems that the gear selection clamping stagnation fault is possibly caused, or the structure is complex and the assembly is difficult due to the fact that the phenomenon of large gear selection resistance easily occurs in an existing gearbox control mechanism. The gear shifting mechanism comprises a gear selecting shifting block, a transverse gear shifting rod, a gear shifting shifting block and a lifting pin assembly. The gear selecting shifting block comprises a gear selecting upper shifting block and a gear selecting lower shifting block; one end of the transverse shift lever is connected with an external power mechanism; a mounting hole is formed in the middle of the gear shifting block in the axial direction of the transverse gear shifting rod, an inner spline matched with the outer spline is arranged in the mounting hole, and the gear shifting block is arranged on the transverse gear shifting rod in a sleeving mode through the inner spline. A boss is arranged on the side, away from the gear selecting shaft, of the gear shifting block, and a through hole is formed in the boss. A second groove is formed in the transverse gear shifting rod, the lifting pin assembly penetrates through the through hole, and the end of the lifting pin assembly makes contact with the second groove.
Owner:BAOJI FAST GEAR

Coal mining machine hydraulic auxiliary supporting device suitable for large-gradient down mining

The utility model discloses a coal mining machine hydraulic auxiliary supporting device suitable for large-gradient down mining, which comprises a buckling part, and the vertical section of the buckling part is in a] shape with a backward opening; the rear surface of the buckling part is connected with an upper supporting seat and a lower supporting seat; the upper supporting seat is backwards connected with a cylinder body for supporting a hydraulic cylinder; the front part of the cylinder body is backwards and downwards connected with an inclined supporting column, and the inclined supporting column is backwards connected with a lower supporting seat; extension rods of the supporting hydraulic cylinders are forwards connected with the supporting top plate; the upper and lower supporting seats and the supporting hydraulic cylinder form a group of supporting devices; two or more supporting top plates are arranged side by side at intervals, each supporting top plate is connected with three sets of supporting devices, and the three sets of supporting devices are evenly arranged at intervals left and right. Through the supporting hydraulic cylinders, the state of the supporting top plates can be adjusted, the stress conditions of different supporting top plates and different parts of the same supporting top plate can be balanced, the stress of the guide sliding shoes is shared, the safety of down-dip mining operation is ensured, the abrasion of the guide sliding shoes of the coal mining machine is reduced, and the phenomenon that the coal mining machine turns over on one side is avoided.
Owner:XINQIAO COAL MINE OF YONGMEI GRP CO LTD +1

Positioning hinge

A positioning hinge comprises a hinge seat, a hinge arm and a pin shaft, a seat through hole is formed in the hinge seat, the U-shaped hinge arm is provided with a first cross arm, a second cross arm and a vertical arm connected to the first cross arm and the second cross arm, the middle section of the pin shaft is inserted into the seat through hole, and the two ends of the pin shaft extend out of the seat through hole and are connected to the first cross arm and the second cross arm respectively; the positioning disc, the positioning wheel and the driving spring are arranged in the base through hole, the positioning disc is connected to the middle section of the pin shaft in a sleeving mode but does not rotate along with the pin shaft, a positioning groove is further formed in the inner side wall of the positioning disc, the positioning wheel is rotatably connected to the pin shaft through a wheel shaft, and the center line of the positioning wheel is perpendicular to the center line of the pin shaft; the positioning wheel can abut against the inner side wall face of the positioning disc under the action of the driving spring. When the hinge arm drives the pin shaft to rotate, the pin shaft drives the positioning wheel to rotate synchronously, and the positioning wheel rolls on the inner side wall face of the positioning disc and can roll into the positioning groove, so that the hinge arm is temporarily positioned.
Owner:GUANGDONG ARCHIE HARDWARE

Improved shower chair structure

This invention relates to the field of bathing aids technology and discloses an improved shower chair structure, including a chair frame assembly, a seat, a backrest, and armrest assemblies. The chair frame assembly is formed by hinged front and rear frames, and a load-bearing structure for mounting the seat is provided between the chair frame assemblies. The load-bearing structure includes a first pivot support at the hinge of the front and rear frames and a second pivot support composed of a first load-bearing column, a second load-bearing column, and a connecting rod. One end of the connecting rod is pivotally connected to the seat by a bolt, and the other end is fitted onto the first load-bearing column. The top end of the connecting rod is placed in a connecting rod limiting groove, and the connecting rod also has a pointed protrusion that abuts against the end of the connecting rod limiting groove when folded. This solves the technical problem in the prior art that shower chairs cannot stand freely after folding and sometimes open on their own, causing safety issues. It provides a new shower chair structure that is simple in structure, low in cost, ergonomically designed, sturdy in support, safe and stable in opening and closing, and healthy and comfortable.
Owner:JIANGSU ZHETAI ELECTROMECHANICAL TECH CO LTD

Double-head four-station automatic pressing equipment

The double-head four-station automatic pressing equipment comprises a workbench, a control device, a pressure bearing mechanism, a driving device, a rotating shaft, a bearing cross beam, a pressing mechanism and a display screen, the four pressure bearing mechanisms are fixed to the workbench and distributed in an annular array mode. The control device and the driving device are fixed on the workbench, the rotating shaft is rotatably erected on the workbench, and the end part of the rotating shaft is connected with the output end of the driving device; the bearing cross beam is fixedly connected to the rotating shaft, the two ends of the bearing cross beam are each connected with a pressing mechanism, the two pressing mechanisms located at the two ends of the bearing cross beam are symmetrically arranged about the center of the rotating shaft, and each pressing mechanism is opposite to the corresponding pressure bearing mechanism in the working state; the display screen is fixed on the rotating shaft, and the display surface of the display screen faces the outer side of the bearing cross beam; and the control device is electrically connected with the driving device, the pressing mechanism and the display screen. Compared with the prior art, the equipment is high in pyrography efficiency, small in structural mechanism and occupied area and convenient to use.
Owner:GUANGZHOU SHILIN MASCH CO LTD

Multi-rotating-head working mechanism and electric tool with same

The utility model discloses a working mechanism with multiple rotating heads, which solves the technical problems of low working efficiency and poor effect of an electric tool with a single working head in the prior art. The multi-rotating-head working mechanism comprises a driver, a plurality of rotating heads and a planetary gear assembly, the planetary gear assembly comprises a main shaft, a planet carrier, a plurality of planetary gears, a plurality of rotating shafts and fixedly-arranged meshing units, the rotating shafts are rotatably arranged on the planet carrier, and the meshing units are fixedly arranged on the main shaft. The planetary gears, the rotating shaft and the rotating head rotate synchronously, the rotating head is arranged below the planet carrier, the driver is in transmission connection with the main shaft, the planet carrier is installed on the main shaft and rotates synchronously with the main shaft, and the meshing unit is meshed with the multiple planetary gears. And the planet carrier rotates to drive the plurality of planet gears to revolve around the axis of the main shaft and enable the plurality of planet gears to rotate around the axis of the rotating shaft. The utility model further provides an electric tool which adopts the multi-rotating-head working mechanism in the technical scheme.
Owner:ZHEJIANG PRULDE ELECTRIC APPLIANCE CO LTD

A dual-motor two-speed multi-mode hybrid transmission and a speed changing method

The present invention discloses a dual-motor two-speed multi-mode hybrid transmission and a speed change method. The transmission includes a housing, a main shaft, a first planetary mechanism, a second planetary mechanism, a first brake, a second brake, a first clutch, a second clutch, a first motor and a second motor. The main shaft is rotatably connected in the housing. The main shaft is used for transmission connection to the output shaft of the engine. Two planetary mechanisms and two motors are used for linkage to realize two pure electric drive modes, two engine direct drive modes, and two continuously variable speed change modes, a total of six drive modes. Through control by two clutches and two brakes, continuous switching of different modes under different road conditions can be realized, greatly improving fuel economy and driving comfort. Because only two planetary mechanisms are used in structure, the structural layout is simpler.
Owner:ZHUHAI RONGBO DRIVE TECHNOLOGY CO LTD

Bidirectional self-cleaning tubular heat exchanger with vibration function

The invention discloses a tubular heat exchanger, and particularly relates to a bidirectional self-cleaning tubular heat exchanger with a vibration function, which comprises an upper heat exchange tube box and a lower heat exchange tube box, a track is arranged on the lower heat exchange tube box, an ash removal trolley is arranged on the track, the ash removal trolley is arranged between the upper heat exchange box and the lower heat exchange box, and a support frame is arranged on the ash removal trolley. A vibration assembly and a driving device are arranged on the supporting frame. The driving device works to drive the supporting frame to move along the rail, so that translation of the toothed plate assembly between the heat exchanger pipes can be achieved, and ash removal operation is achieved. Meanwhile, due to the arrangement of the up-and-down vibration part, the toothed plate assembly can be driven to do up-and-down reciprocating motion, the toothed plate can do up-and-down reciprocating motion in gaps of the heat exchange tubes, sticky or hardened accumulated dust on the heat exchange tubes can be cut and vibrated off, the accumulated dust on the tube plates at the two ends of the heat exchanger can be cleaned, and long-term stable dust cleaning is achieved.
Owner:山东泓江智能设备有限公司