55results about How to "Facilitates axial positioning" patented technology

The invention relates to the field of cable taking-up and paying-off equipment, and aims to provide a cable wire barrow of which a transmission mechanism between a power machine and a take-up drum has functions of overload protection and labor conservation by manually rotating the take-up drum. The cable wire barrow comprises a car frame with wheels, a bearing frame, a rotating shaft, a driving device which is used for driving the rotating shaft, a transmission device, a wire plate shaft, a traction rope plate, a transmission fork and an opening and closing retainer, wherein the wire plate shaft comprises a connecting section, a cable section, a bearing section and a traction section which are connected with one another in sequence; the rotating shaft comprises a transmission section and a supporting section; the transmission section of the rotating shaft is pivoted with the bearing frame, and the transmission fork is sleeved outside the supporting section and is fixedly connected with the supporting section; and the connecting section is detachably and fixedly connected with the supporting section, the opening and closing retainer bears the bearing section, and the traction rope plate is sleeved outside the traction section. The cable wire barrow ensures that the paying off of cables is easy and labor-saving when the cables are relatively thick and heavy and a paying-off path is bumpy.

The invention discloses a top cover of a power battery. The top cover of the power battery comprises a top cover sheet, a first terminal post, a second terminal post, a first mounting hole, a second mounting hole, an explosion-proof valve and a liquid filling hole, wherein the first terminal post, the second terminal post, the first mounting hole, the second mounting hole, the explosion-proof valve and the liquid filling hole are arranged on the top cover sheet; the first terminal post is mounted in the first mounting hole; the second terminal post is mounted in the second mounting hole; the first terminal post comprises a first matrix part and a second matrix part; a first column part is arranged between the first matrix part and the second matrix part; a first groove is formed among thefirst matrix part, the first column part and the second matrix part; a first seal ring sleeves the first column part; conductive plastic parts are arranged among the first matrix part, the first column part, the first seal ring and the top cover sheet; and a first insulating part is arranged among the second matrix part, the first seal ring and the top cover sheet. An H-shaped terminal post structure of the top cover of the power battery can achieve a good axial positioning effect on top cover parts, so the top cover of the power battery is compact and reliable in structure, dispenses with a riveting working procedure required by a T-shaped terminal post with a conductive block, reduces production cost and improves assembly efficiency.

The invention discloses an in-situ test positioning controllable mechanical loading and fixing device. A sliding block component (6) of the device is arranged on an X-axis guide rail (3); a sliding block component (6) is arranged on the Y-axis guide rail (4); a sliding base (5) is arranged on the Y-axis guide rail (4); a lower rotating body (1) is arranged on the sliding base (5); the lower rotating body (1) is connected with an upper rotating body (9) by a pin shaft (7); and a clamping cylinder is arranged on the upper rotating body (9). The device disclosed by the invention can quickly and accurately position an irregular experiment sample and can quickly and accurately position the loading site of the experiment sample in situ, thereby greatly reducing the inaccurate positioning problems aroused by the drawbacks of a loading device in an experiment process and improving the accuracy and repeatability of the in-situ test positioning by a mechanical press-in method.

The invention discloses an automobile axial flip fixture, which comprises a device main body, a transmission device is connected to the upper end of the device main body through a support rod, a motor is installed in the inner cavity of the transmission device, and a motor is installed on one side of the motor. A connecting shaft, and one end of the connecting shaft is connected to the base plate, an adjustment device is installed on one side of the upper end of the base plate, a clamp is installed on the upper end of the adjustment device, a clamp box is installed on one side of the adjustment device, and the clamp box A lower clamp is installed on one side, and a fixing device is installed on one side of the main body of the device. The left and right ends of the main body of the device are respectively provided with hydraulic devices, and the hydraulic devices are connected to the transmission device. The invention is easy to use and can bring a lot of convenience to the user during use. At the same time, the clamp realizes hydraulic treatment, is convenient to operate and can be turned over, and brings a lot of convenience to the user.

The invention belongs to the technical field of bridge plugs, and discloses a metallic seal solvable bridge plug. The metallic seal solvable bridge plug includes a leader, a slip, a ball seat and a solvable ball. The slip includes a squeezing end abutting against the leader and a taper squeezing cavity tightly matched with the outer wall of the ball seat. The leader, the slip and the ball seat aretightly matched with one another successively to form a bridge plug body. The inner part of the ball seat is in communication with the inner part of the slip to form a first central hole. The first central hole is internally provided with a solvable ball supporting platform which is matched with the solvable ball to achieve the closed effect on the first central hole. A sealing mechanism furthersleeves the ball seat. The lower end of the sealing mechanism abuts against the upper end of the slip. According to the metallic seal solvable bridge plug, fracturing operation efficiency can be effectively improved, the risk of pit shaft plugging is eliminated, the structure is compact, and performance stability of the solvable bridge plug is improved.

The invention discloses a forging machining process of a parking gear, and relates to the technical field of gear machining. The problems that parking gear machining production efficiency is low, andmaterial waste is serious in the prior art are solved. The machining process comprises the following steps of blanking, outer circle turning, heating, blank making, center hole punching, hot precisionforging, connected skin turning, isothermal normalizing, shot blasting, scale saponification and cold extrusion. The forging process is adopted for parking gear machining, material waste is reduced,a cavity is machined through preforming, and a cake-shaped structure is formed through common preforming. An annular structure with a taper step is adopted and adapts to a product, and when a blank ismachined into the cavity, the peripheral wall of the opening end of the cavity is expanded outwards and inclines to form an opening face, the opening face horizontally extends towards the end face ofa cylindrical body to penetrate through the end face of the cylindrical body, and accordingly, a positioning boss is formed, axial positioning of a die and the blank is facilitated, and the subsequent forging quality is guaranteed. Through the design of the cavity, the forging force requirement of precision forging forming can be reduced.

The invention discloses a connecting method of a pure electrical vehicle driving system, comprising the following steps of: A, processing a motor rotor main shaft (1); B, processing a spline sleeve (2); C, processing a connecting flange (3); and D, connecting and assembling. The method has the advantages of accuracy and convenience in positioning, high processing precision, and little error; the matching quality of connecting pieces is ensured; and the whole system is stable in running.

The invention discloses a cooking pan using steam heating, and a steam heating type cooking utensil, belongs to the field of kitchen household appliances, and solves the problem that a pan cover of acooking pan in the prior art is inconvenient to clean. The cooking pan provided by the invention comprises a pan body and a pan cover, wherein the pan cover comprises an outer cover and an inner cover; the outer cover covers the pan edge of the pan body; and the inner cover and the pan body are matched to form a cooking chamber. The cooking pan further comprises a steam guide pipe, wherein a projected air inlet connector is arranged on the inner side of the outer cover and penetrates through the inner cover; and the steam guide pipe can be detachably arranged on the air inlet connector and axially positions the inner cover. The cooking pan provided by the invention adopts the design of the detachable inner cover, so that the inner cover can be conveniently and independently cleaned.

The bicycle hub assembly includes a hub axle, a hub body, a bearing unit, a lock member, and a tool engagement member. The bearing unit is configured to rotatably support the hub body around the hub axle with respect to the rotational center axis. The bearing unit includes an outer race, an inner race and a plurality of rolling members. The lock member prevents the inner race of the bearing unit from rotating relative to the hub axle. The tool engagement member is configured to rotate the inner race of the bearing unit relative to the hub axle.

The invention relates to a main shielding case of a vacuum arc-extinguishing chamber and the vacuum arc-extinguishing chamber. The vacuum arc-extinguishing chamber comprises two sections of shells, a main shielding case and a metal middle sealing ring, wherein the two sections of shells are in butt joint in the axial direction of the vacuum arc-extinguishing chamber; the main shielding case is used for surrounding the outer side of the joint of the moving contact and the static contact; the metal middle sealing ring is welded and fixed between the two sections of shells and is used for welding and fixing the main shielding case; the main shielding case is made of a ceramic material; a metallization layer is arranged on the outer peripheral surface of the main shielding case; and the metallization layer is arranged around the outer peripheral surface of the main shielding case to form a middle sealing ring connecting part which is used for being welded and fixed with a metal middle sealing ring between two sections of shells of the vacuum arc-extinguishing chamber so as to realize the fixation of the main shielding case. According to the scheme, the problem that the insulation performance of the vacuum arc-extinguishing chamber in the prior art is greatly influenced by metal vapor and miniaturization is not facilitated can be solved.

The invention relates to an optical fiber connector, especially relates to a tail accessory for the optical fiber connector, and provides the tail accessory for the optical fiber connector, the optical fiber connector and an optical cable assembly. Wherein the tail accessory includes a sleeve, the rear part of the sleeve is provided with an adhesive sleeve for lead-out optical cables to pass through and to bond and fix, the rear end of the adhesive sleeve is provided with a plugging body, the plugging body is provided with two or more optical cable pass-through holes used for optical cables topass through, the tail end of the tail accessory is fixedly provided with anti-bending sleeves for each of the optical cables to pass through, and the anti-bending sleeves are used for avoiding overbending of the optical cables. The scheme can achieve simultaneous piercing of more than two optical cables, so that optical cables with thin diameter can be utilized, the minimum bending radius can bereduced, occupation of a bending space can be saved, a deconcentrator can be omitted, and the cost can be reduced. At the same time, since more than two optical cables are simultaneously disposed onthe adhesive sleeve, rotation of a single optical cable does not form rotational moment on the entire adhesive sleeve, and an optical fiber inside a sleeve pipe is prevented from being twisted.

The invention discloses a concrete pump with a lift type hopper fence for thoroughly solving the concrete accumulation problem. The concrete pump comprises a concrete stirring device, a hopper, a fence and a frame; a mounting frame is fixed on one side of the frame; a lift driving device is fixed on the mounting frame; a mounting plate is fixed at the lower end of a lifting rod of the lift driving device; a vibration device is fixed on the mounting plate; the vibration device includes a pneumatic vibrator and a vibrator clamping device; multiple guide rod passing holes are formed in the vibrator clamping device; clamping device guide rods are slidingly matched in the guide rod passing holes; the upper and lower extension ends of the clamping device guide rods are respectively coated with compression springs; and the lower ends of the clamping device guide rods are fixedly connected with the mounting plate.

The invention discloses a paint pneumatic vibration filtering device which has a simple structure and is externally provided with a vibration mechanism. The paint pneumatic vibration filtering device comprises a connecting pipe, wherein a filtering barrel is erected in the connecting pipe, a threaded connecting hole is radially formed in the outer peripheral surface of the filtering barrel, an allowance strip-shaped hole is axially formed in the wall of the connecting pipe and corresponds to the threaded connecting hole, a corrugated pipe is sheathed on the wall of the connecting pipe and can completely cover the allowance strip-shaped hole in the wall of the connecting pipe, the upper end and lower end of the corrugated pipe are adhered and fixed on the wall of the connecting pipe to form sealing, a threaded connecting head is fixedly arranged on the body of the corrugated pipe and corresponds to the allowance strip-shaped hole and the threaded connecting hole, the threaded connecting head is in threaded matching with a screw, one end of the screw penetrates through the allowance strip-shaped hole and is in threaded matching with the threaded connecting hole in the filtering barrel, a connecting head is arranged on the other end of the screw and is connected with the pneumatic vibration device fixedly arranged on the wall of the connecting pipe, and the pneumatic vibration device is used for driving the filtering barrel to vibrate up and down through the screw.

The invention provides a split combined belt pulley. The split combined belt pulley comprises two half pulley bodies. Axial positioning keys are arranged on one of the half pulley bodies. The axial positions of the two half pulley bodies are positioned through the axial positioning keys, and the two half pulley bodies are buckled into a whole. The two half pulley bodies are detachably connected. A sleeve wheel is arranged outside the whole in a sleeving mode. A half pulley body pressing cover is detachably connected with the end face of the tail end of an installed power shaft. A sleeve wheel pressing cover is detachably connected with the end faces of the tail ends of the two half pulley bodies. The split combined belt pulley has the beneficial effects that a traditional belt pulley is split into two parts, namely the two half pulley bodies, so that the tedious steps during maintenance of the belt pulley are greatly simplified and the replacing difficulty is lowered; the good position function is provided for installation of the two half pulley bodies by arranging the axial positioning keys, so that the two half pulley bodies are buckled more conveniently and accurately; the good axial positioning function is provided for the two half pulley bodies and a transmission device assembled with the two half pulley bodies by arranging the half pulley body pressing cover; the sleeve wheel is in key transmission with the half pulley bodies and positioned through a conical face, so that disassembling, assembling and positioning are convenient.

The invention relates to a radial guide having a disk in which an opening is provided, and a cylindrical part which is arranged substantially centrally with respect to the disk,through an elastic webfor receiving a radial force is formed through the opening formed in the disk.

The invention discloses a shaft and bearing matching structure for axially positioning a bearing on a shaft or a rod without a groove. The shaft and bearing matching structure comprises a long-handlethree-column-groove shell rod part, a bearing support, the bearing and a pressing ring, wherein the bearing is fixed on the bearing support; the bearing comprises a bearing inner ring, a bearing outerring, a plurality of rollers and a bearing sealing ring, the bearing is arranged on the long-handle three-column-groove shell rod part in a sleeve mode, the pressing ring is arranged on the long-handle three-column-groove shell rod part in a sleeve mode, and the pressing ring is fixed on one side of the bearing; and the inner side wall of the pressing ring is in interference fit with the long-handle three-column-groove shell rod part, and the pressing ring carries out axial positioning on one side of the bearing. Due to the fact that the long-handle three-column-groove shell rod part is freeof the groove, the problem of concentrated stress is avoided, and the risk of generating cracks during torsional fatigue is reduced; and compared with an axial positioning structure adding an limitingbaffle ring to the groove, the axial positioning effect of the shaft and bearing matching structure is better.