86results about How to "Constant transmission ratio" patented technology

The invention relates to a gear and a method for designing and machining the same. The gear is particularly characterized in that each of tooth crest curved surfaces and tooth root curved surfaces is a part of a convex ring surface or a concave ring surface, each of the tooth crest curved surfaces and the tooth root curved surfaces of the involute gear with the concave and convex ring surfaces is a part of a ring surface, an arc circularly rotates around an axis of the gear to form the ring surface, a tooth profile curve of the end section of each gear tooth is an involute, and the teeth are synchronously distributed around a center point of the tooth width. By the aid of the gear, three gear transmission forms can be realized, the gear not only can be used for driving of parallel axes, but also can be used for driving of intersecting axes with small axial intersect angles, high axis deflection installation errors are permitted when the gear is used for driving of parallel axes, the axial intersect angles are allowed to dynamically change when the gear is used for driving of intersecting axes, transmission ratio can keep constant when the gear is used for driving of parallel axes and driving of intersecting axes, and the gear teeth are not interfered with each other. By the aid of the method for designing the gear, the involute gear with the ring surfaces is divided into a plurality of tiny tapered involute gears, geometric parameter design of the involute gear with the ring surfaces is carried out, and a process of the method is carried out simply, conveniently and feasibly.

The invention relates to the field of civic building machines, in particular to a road cutting robot and a construction method thereof. A robot body comprises a base, a marked line, a moving table and a cutting device. The base can be put on horizontal ground or inclined ground and provides a track where the moving table continuously moves forwards linearly; the moving table can drive the cutting device on the base to integrally and horizontally move leftwards and rightwards, and can independently move by separating from the base; the cutting device drives a blade used for cutting to integrally swing to adjust cutting depth during one-time forming, and during different strokes, the integral swinging radius of the blade used for cutting is adjusted to adjust the maximum cutting depth. The construction method includes the steps of planning, installing, setting and information feedback. The road cutting robot is easy to operate, wide in application range and can adjust the maximum cutting depth during each stroke.

The invention relates to a mechanical transmission device and particularly relates to an electronic sliding table. The electronic sliding table comprises a sliding table base, a guide rail is arranged on the sliding table base, a sliding fixation block structure, a front fixation block and a rear fixation block are arranged at the two ends of the sliding table base respectively, the rear fixation block is connected with a tail end fixation block, and a driving structure for driving the sliding fixation block structure to move is arranged in the tail end fixation block. The electronic sliding table has the advantages of being ingenious and simple in design, low in noise, wide in use range, convenient to mount, high in accuracy and acceptable to the majority of users.

The invention discloses a rooftop linkage tracing photovoltaic stent and a photovoltaic power generation system, which belongs to the technical field of photovoltaic power generation equipment. The stent comprises a driving mechanism, guide rails and a component unit. The guide rails are laid on rooftop and are fixed. The component unit is arranged across two adjacent guide rails, and comprises a component frame, a sliding part and a connecting rod. The sliding part is arranged in the guide rails. One end of the connecting rod is hinged with the sliding part. The other end is hinged with the component frame. The driving mechanism is applied to the sliding part of the component unit. When the photovoltaic stent is used, the connecting rod is pushed to hold up or lay the component frame. The whole photovoltaic stent structure can be close to the rooftop plane, which effectively reduces wind resistance; the weight of the entire photovoltaic stent structure is light, which reduces the overall structural strength requirement; and the rooftop linkage tracing photovoltaic stent and the photovoltaic power generation system have the advantages of long service life, simple structure, reasonable design and easy manufacture.

The invention discloses an automatic guided vehicle (AGV). The automatic guided vehicle comprises a vehicle body, a lifting frame, at least one synchronous belt driving mechanism, a synchronous belt,a goods taking mechanism and a driving source. The lifting frame is arranged on the vehicle body. The lifting frame comprises a top beam, a bottom beam and two opposite side beams. The bottom beam isarranged opposite to the top beam. The top beam and the bottom beam are connected through the side beams. The synchronous belt driving mechanism comprises two synchronous pulleys. The synchronous pulleys are arranged on the top beam and the bottom beam respectively. The two synchronous pulleys are sleeved with the synchronous belt. The synchronous pulleys rotate to drive the synchronous belt to move so as to make the synchronous belt ascend or descend. The goods taking mechanism is fixedly arranged on the synchronous belt. The synchronous belt moves to drive the goods taking mechanism to ascend or descend. The driving source is suitable for driving the synchronous pulleys to rotate. The synchronous pulleys are used in cooperation with the synchronous belt. It is beneficial for guaranteeingthe steadiness of transmission, and therefore, the steadiness of the lifting motion carried out by the goods taking mechanism can be improved.

The invention relates to a motor vehicle steering mechanism, in particular to an electric power steering box. The electric power steering box comprises a left steering ball, a rack, an assist motor, a steering box shell, an input shaft and a right steering ball, wherein the left end of the steering box shell is provided with a supporting ring; the rack is assembled inside the supporting ring; the left steering ball and the right steering ball are installed at the left and right ends of the rack respectively; the assist motor is installed on a supporting frame of the steering box shell through bolts; a first transmission gear is arranged on an output shaft of the assist motor; the other end of the output shaft of the assist motor is installed in the steering box shell through a ball bearing; the rack is provided with a steel ball lower spiral groove; a transmission nut is assembled on the spiral groove of the rack; the first transmission gear on the output shaft of the assist motor is matched with a second transmission gear on the transmission nut; the transmission nut is installed on a boss of the steering box shell through a needle bearing. The electric power steering box solves the technical problems that a rack power-assisting type steering box is low in transmission efficiency, large in heat value and the like in the prior art.

The invention provides a synchronous belt main transmission balanced driving rack and pinion elevator. A power transmission system is a synchronous belt main transmission system, the driving system is a balanced driving system, a power dragging system is a permanent magnet DC motor system or a permanent magnet AC synchronous motor system, the balanced driving means that the driving force for driving an elevator car is in left-right symmetry, front-back symmetry, and top-bottom symmetry, The power transmission relation of the synchronous belt main transmission system is that a main power transformation transmission system drives a power shunting transmission system, the power shunting transmission system drives a rack and pinion balanced driving system. A brake wheel coaxial with a motor shaft is equipped with a double-backup power-lossing band-type brake, a 'power-off star connection' unit circuit integrating electrical interlocking and mechanical interlocking is arranged in an electrical control system. The elevator has the beneficial effects of alleviating the self-weight, improving effective transport capacity, and saving energy.

The invention discloses a structure of rope-driven mechanical arm rotation joint. The structure comprises a synchronous belt wheel shaft, a synchronous belt, an angle sensor, an arm joint bearing end plate, a deep groove ball bearing, an angular contact ball bearing and a mechanical arm connection clamping block, wherein the mechanical arm connection clamping block is provided with a connection hole and a steel wire rope through hole; the synchronous belt wheel shaft comprises a belt wheel end and a shaft end from top to bottom; a sensor containing hole, a sensor output shaft connection hole and a cross recessed countersunk head screw inner threaded hole are arranged along the axis of the synchronous belt wheel shaft in sequence; and the inner rings of the deep groove ball bearing and the angular contact ball bearing are respectively fixed at the upper part and the lower part of the belt wheel end through transition fit. According to the structure, the movement of the joint in a relatively large range can be realized; by adopting a detachable structure, the maintenance and carrying are convenient, the structure is simplified, the running efficiency of the joint is improved and the movement coupling of the joint is avoided; the problem that only stretching can be carried out and compression cannot be carried out in the rope driving process, the structure is simple, and stroke range is large, so that the structure is particularly suitable for being installed on the disabled and aged helping facilities such as wheelchairs and care beds.

Provided is a separation bed for a differential type pneumatic dry separator. A separation bed box body is connected with a transmission frame through an adjustment connection device, and a vibration exciter is installed at the bottom at one end of the transmission frame. Two ends of the separation bed respectively serve as a feeding port and a discharging port, a discharging blocking plate and a back plate respectively serve as two long sides of the rectangular box body, the bottom face of the separation bed box body is formed by multiple rectangular zigzag rubber screening plates, and the separation bed is arranged obliquely. When the separation bed is oblique in the length direction of the separation bed, and a longitudinal included angle formed by the bottom face of the separation bed and a horizontal plane is 4-10 degrees. When the separation bed is oblique in the width direction of the separation bed, and a transverse included angle formed by the bottom face of the separation bed and the transmission frame is 4-8 degrees. The separation bed has the advantages of being compact in structure, simple and convenient to operate, good in abrasion resistance, high in friction coefficient, small in noise, long in service life, stable in transmission, simple and convenient to maintain and good in antifouling property, having no need for lubrication and the like.

The invention discloses a synchronous belt, which relates to the technical field of belt drive. In the belt, a base body is provided with convex teeth which are arranged continuously and sequentially, the cross section has an annular shape, and the longitudinal section has a double-sized tooth bar shape. The synchronous belt can be widely applied to parallel shaft, intersected shaft, crossed shaft and multi-driven-wheel drive. The synchronous belt has the advantages of constant drive ratio, stable and flexible drive, low noise and high drive efficiency.

The invention discloses a workpiece positioning and clamping device, which includes a housing, an active driving mechanism is arranged in the housing, and a driven driving mechanism driven by the active driving mechanism, and the driven driving mechanism drives the clamping mechanism to act; The active driving mechanism includes a cylinder, a driving rack driven by the cylinder, and a driving gear meshed with the driving rack; the driven driving mechanism includes a screw connected to the driving gear, and the first driven gear is meshed on both sides of the screw respectively. , the second driven gear; the driven drive mechanism is arranged in the fixed frame, the screw rod runs through the fixed frame and is connected with the driving gear, and the fixed frame is also provided with the first driven gear and the second driven gear driven by the screw rod respectively. The left drive arm and the right drive arm; the cylinder drives the active rack to drive the active gear to drive the screw to rotate, thereby driving the left drive arm and the right drive arm to drive the left and right grab arms to move, and the left and right grab arms to drive the left grab Hand and right gripper grip or release.

The invention discloses an agricultural greenhouse linkage tracking photovoltaic stent and a photovoltaic power generation system, which belongs to the technical field of photovoltaic power generation equipment. The stent comprises a column stent, a driving mechanism, guide rails and a component unit. The column stent is arranged above an agricultural greenhouse. The height of the column stent is slightly higher than the height of the agricultural greenhouse. The guide rails are fixed on the column stent. The component unit is arranged across two adjacent guide rails, and comprises a component frame, a sliding part and a connecting rod. The sliding part is arranged in the guide rails. One end of the connecting rod is hinged with the sliding part. The other end is hinged with the component frame. The driving mechanism is applied to the sliding part of the component unit. When the photovoltaic stent is used, the connecting rod is pushed to hold up or lay the component frame. According to the invention, the design thought of wind hiding and the theory of bionics are used; in one minute, the component unit automatically lays down, so that the windward surface is small and the wind resistance is reduced to ensure the safety of the stent, the system and the agricultural greenhouse; loss caused by the disaster is avoided; and the stent and the system have the advantages of simple structure, reasonable design and easy manufacturing.

The invention provides a drilling device used for pipe jacking construction and belongs to the technical field of municipal engineering. The technical scheme includes that the drilling device comprises a base plate, an intermittent motion mechanism is arranged on the base plate, and a drilling mechanism is arranged on the intermittent motion mechanism. The drilling device has the advantages that manual soil ploughing can be replaced, working efficiency is high, and injury to the body, caused by manually lying on front to plough can be avoided.

The invention discloses a synchronous rolling device of a thin material punching machine. A rolling shaft and an unrolling shaft are respectively positioned at both ends of a synchronous belt wheel paper feeding mechanism and can be nestled to a main circulating conveyor belt on the synchronous belt wheel paper feeding mechanism and driven to rotate by friction of the main circulating conveyor belt, wherein the unrolling shaft can be synchronously released from or nestled to the main circulating conveyor belt to act under the drive of an unrolling shaft drive mechanism so as to be converted between two working states; in the first working state, the unrolling shaft can not be driven to rotate by the friction of the main circulating conveyor belt; in the second working state, the unrolling shaft can be driven to rotate by the friction of the main circulating conveyor belt; and the rolling shaft can be freely released from or nestled to the main circulating drive belt to act. The invention provides the synchronous rolling device of the thin material punching machine, which can achieve zero meter start under the premise of not wasting the thin material.

The invention provides an improved horizontal vessel rotating device which is characterized in that the improved horizontal vessel rotating device comprises rolling wheel stands (1), rolling wheels (2), rolling paths (3), a vessel cylinder body (4), a gear (5) and a transmission device (6), wherein the rolling wheel stands (1) are arranged on the bottom surface of the improved horizontal vessel rotating device; the rolling wheels (2) arranged on the outer edge of the vessel cylinder body (4) are arranged on the rolling wheel stands (1); and the gear (5) arranged on the vessel cylinder body (4) is connected with the transmission device (6) in a meshed manner. The transmission manner of the improved horizontal vessel rotating device provided by the invention adopts a gear transmission manner which has the characteristics of constant transmission ratio, compact structure, high transmission efficiency, and the like. The large gear of the improved horizontal vessel rotating device provided by the invention is arranged on the vessel cylinder body, and a large gear connecting seat and the surfaces of the rolling paths are integrally processed by utilizing a large machine tool, so that the excircles of the two rolling paths are guaranteed to be concentric with the large gear, the operation is stable and the consumed power is low.

The invention provides a soil plough used for pipe jacking construction and belongs to the technical field of municipal engineering. The technical scheme includes that the soil plough comprises a baseplate, an intermittent motion mechanism is arranged on the base plate, and a drilling mechanism and a reaming mechanism are arranged on the intermittent motion mechanism. The soil plough has the advantages that manual soil ploughing can be replaced, working efficiency is high, and injury to the body, caused by manually lying on front to plough can be avoided.

The invention belongs to the technical field of intelligent buildings and especially relates to access control equipment for intelligent buildings. The equipment comprises a wall body, a fixed plate and an operation plate; a moving plate is mounted in the wall body; an adjusting mechanism is fixed below the moving plate; a lighting mechanism is arranged on the right side of the fixed plate; a transparent plate is mounted on the surface of the front end of the operation plate; a camera is arranged in the operation plate; an extension block is fixed to the rear portion of a shielding mechanism,and a magnetic block is attached to the surface of the back of the extension block; a sliding groove is formed in the outer portion of the magnetic block, and a magnetic plate is attached to the innersurface of the sliding groove; a bottom plate is fixed to the lower portion of the magnetic plate; and an identification block is arranged on the surface of the front end of the bottom plate. The access control equipment for intelligent buildings is convenient to use, can automatically open and close the unlocked door, avoids the situation that irrelevant personnel or lawbreakers enter the building due to the fact that the door is forgotten to be closed, is conspicuous at night, can illuminate, and can also be normally used at night.

The invention relates to an automobile axle assembly, in particular to a full-face gear drive axle assembly. According to the technical scheme, the full-face gear drive axle assembly comprises a driving gear shaft, an output shaft, a differential housing, a planetary shaft, a planetary shaft sleeve, a planetary gear, a half-axle face gear and a half-axle. The half-axle face gear is installed in two transverse through holes in the inner cavity of the differential housing, and the planetary gear is installed in two longitudinal through holes in the inner cavity of the differential housing. A shoulder is arranged on the outer wall of the differential housing, a plane boss is arranged at the inner end of a planetary shaft hole, a driven face gear is installed on the shoulder through bolts anda washer, the planetary gear is limited by the planetary shaft sleeve and the plane boss in the differential housing separately, and the driving gear shaft meshes with the driven face gear to drive the differential housing to rotate. By adopting the technical scheme, the full-face gear drive axle assembly is a novel face gear drive axle main reducer assembly which is high in strength, large in drive ratio, compact in structure, low in machining cost, high in interchangeability and easy to install and maintain.

The invention discloses a head-mounted device and an adjusting module thereof, the adjusting module comprises a driving assembly, a gear, a fixed rack and a movable rack, the gear is rotatably connected to the driving assembly, and the movable rack is used for being connected with a to-be-adjusted part. The gear is arranged between the fixed rack and the movable rack and meshed with the fixed rack and the movable rack, the gear is driven by the driving assembly, and the gear drives the movable rack to move so as to achieve movement of a part to be adjusted. According to the adjusting module, the movable pulley principle is adopted, the driving distance can be reduced, under driving of the driving assembly, the gear moves by a certain distance, and the to-be-adjusted part can move with the effect of being twice the moving distance of the gear, so that the adjusting efficiency can be improved, and the power consumption of the driving assembly can be reduced; and therefore, the working efficiency and the service life of the adjusting module can be improved.