292results about How to "Increase the carrying area" patented technology

The invention discloses a light five-cylinder plunger pump. The light five-cylinder plunger pump comprises a power end assembly and a hydraulic end assembly, wherein the power end assembly is connected with the hydraulic end assembly; the cylinder spacing of the light five-cylinder plunger pump is 9in; the power end assembly comprises a crank shaft, the crank shaft comprises six crank necks and five crank throws, the crank necks and the crank throws are fixedly connected, the distance between rotating centers of the crank necks and the crank throws is 101.6 mm, and the stroke distance of the light five-cylinder plunger pump is 203.2 mm. According to the light five-cylinder plunger pump, power is increased by increasing stroke, reducing transmission ratio and improving bearing capacity, andmeanwhile, dead weight is reduced by reducing the cylinder spacing, the tooth number of a big gear and the tooth thickness of the big gear and a pinion. The light five-cylinder plunger pump meets conditions of working in the area with severe well cementing operation conditions in aspects of weight and power simultaneously, and working efficiency is increased.

The invention discloses a five-cylinder plunger pump with an integral power end structure. According to the five-cylinder plunger pump, an integral welding structure is adopted for a crankshaft box body and a crosshead box body in a five-cylinder plunger pump power end assembly, so that the structural strength of the power end assembly is higher, the supporting stability is better, and the whole pump vibration can be reduced; the cylinder spacing is 13-14 inches, the bearing area of connecting rods, crossheads and bearing bushes is increased, a guarantee is provided for the output of the high-power of the five-cylinder plunger pump, the high-power five-cylinder plunger pump can effectively solve the problem that the shale gas fracturing well site area is narrow and the required fracturingequipment is relatively large, the use of equipment can be reduced, and the wellsite arrangement is facilitated; the 11-inches long-stroke design can better realize large-displacement operation requirements and improve the operation efficiency; and according to the multi-point supporting design of crankcase bodies, crosshead box bodies and the hydraulic end assembly, the supporting strength of thefive-cylinder plunger pump can be improved, the vibration is reduced, the high-load operation is better guaranteed, and the operation is more stable.

A wear assembly for excavating equipment that includes a base, a wear part and an improved locking arrangement that provides improved stability, strength, durability, safety and ease of use. The locking arrangement includes a hammerless lock that is pivotally moved between hold and release positions, wherein the fulcrum is set forward of the bearing surface engaging the wear part. The lock can be manipulated by a threaded member or pry tool. The lock further includes bearing surfaces that enhance stability and reduce wear.

The present invention provides a technological process for large-scale breeding bernisia tabaci genn by using tobacco and industrial production of eretmocerus spp. by using nymph of bernisia tabaci genn. Said invention adopts four-chamber eretmocerus spp. breeding method, mechanical collection, separation and purification, low-temp. short-period storage and annual industrial breeding eretmocerus spp. The host plant is tobacco leaf, it can bear lots of bernisia tabaci genn, and is high in production efficiency and is favorable for collection, the bernisia tabaci genn can be used as host of eretmocerus spp, so as to ensure controlling effect in field.

The invention discloses a mechanical-hydraulic double-acting release rotary tail pipe hanger, and belongs to the technical field of manufacturing downhole tools for oil and gas well cementing operations in oil and gas development. The mechanical-hydraulic double-acting release rotary tail pipe hanger comprises a short drill pipe, an upper joint, a release mechanism, a double male joint, a male and female joint and a lower joint. The short drill pipe, the upper joint, the double male joint and the lower joint are connected in a threaded manner from up to down sequentially. The mechanical-hydraulic double-acting release rotary tail pipe hanger further comprises a loading mechanism comprising a hanger set hydraulic cylinder, a light-load bearing, conjoined twin slips, a conjoined twin cone, a heavy-duty bearing and a central pipe. The hanger set hydraulic cylinder, the light-duty bearing, the conjoined twin slips, the conjoined twin cone and the heavy-duty bearing are arranged on the central pipe from down to up sequentially. The central pipe is connected at the lower end of the male and female joint. The heavy-duty bearing is arranged between the male and female joint and the conjoined twin cone. By the aid of the mechanical-hydraulic double-acting release rotary tail pipe hanger, a tail pipe can rotate when the a tube pillar enters, after the hanger is set and is separated from a releasing release, the slips and the bearings bear the hanger, and functions of rotating and well cementing of a heavy-duty tail pipe is realized.

The invention discloses an overturn-resistant self-elevating platform pile shoe which comprises an iron-plate-shaped hollow flat circular shell body connected by an upper top board and a lower bottom board. At least three tubular sliding ways fixedly connected with the shell body are horizontally arranged along the circumference wall of the shell body in an equally spaced mode; the front end of each tubular sliding way is provided with a limiting ring and a sealing ring, the rear end of each tubular sliding way is provided with a flange, a hydraulic oil cylinder and at least one section of telescopic pipe are sequentially arranged from the rear end to the front end, one end of a piston rod of the hydraulic oil cylinder is connected with a reinforced bar inside the shell body, a rod head arranged at the other end of the piston rod is connected with the inner end face of the front end of the telescopic pipe, the front end of the telescopic pipe is closed, and the rear end of the telescopic pipe is provided with a flange; the upper top board of the shell body is further provided with a watertight stuffing box, a watertight door is arranged at the bottom of the lower bottom board, and the hydraulic oil cylinder is communicated with a hydraulic servo system installed on a self-elevating platform through a high-pressure oil pipe. The overturn-resistant self-elevating platform pile shoe has the advantages of being flexible in operation, safe, reliable, resistant to overturning and sliding and strong in puncturing capacity.

An improved umbrella includes a durable hub including a number of spherical rotating joint knuckles captured in a hub body. The joint knuckles provide rotational movement of rib and spreader elements which support a flexible umbrella cover. The joint knuckles provide increased bearing surface area that increases ease of use and durability. The hub design enables identical hub bodies to be used for a spreader hub and a rib hub.

The invention discloses a bottom enlarged cast-in-place pile with dilled hole, wherein: the cast-in-place pile is arranged with an enlarged footing on the bottom. The enlarged footing of the invention formed by mechanical pressure and enlarged base drill bit enlarges the loaded area of the pile end and can provide more than two over three pulling-resistant force of the whole pile. The invention can satisfy the engineering demand of pulling-resistant load bearing, reduce the length and number of pile, simplify the construction and reduce cost.

The invention discloses a display module and a display device, and belongs to the technical field of display. The display module comprises a backlight module and a display panel which are oppositely arranged and a through hole, the display panel at least comprises a first substrate and a second substrate which are oppositely arranged, the first substrate comprises a first side surface and a firstsurface, the second substrate comprises a second side surface and a second surface, the intersection line of the first side surface and first surface is a first intersection line, the intersection line of the second side surface and second surface is a second intersection line; the display panel comprises a first cross section which passes through the through hole and is vertical to a light emitting surface, the intersection point of the first cross section and first intersection line is a first intersection point, the intersection point of the first cross section and second intersection lineis a second intersection point, and the connecting line of the first intersection point and the second intersection point forms an acute angle with the first surface. The display device comprises thedisplay module. According to the invention, light leakage in the through hole can be avoided, the influence of the overflow of a shading sealant on the display and shooting functions of the camera arranged in the through hole can be reduced, and the product quality is improved.

The invention discloses a water lubrication thrust bearing wit a ring grooves, relating to a thrust bearing. The invention solves the problems of bad performance of frictional wear, easy wear and cracking to a grinding disc, small bearing area, low bearing capacity, short service life, difficult fluid hydrodynamic lubrication, unreliable work process, complicated structure, large axial size, complicated processing process and high cost and so on of the prior thrust bearing. A friction surface (1) of the thrust bearing is provided with aequilate water grooves (2) along the radial direction, sector massive bearing surfaces is formed on the friction surface (1), and the sector massive bearing surfaces are provided with ring grooves (3). The water lubrication thrust bearing with the ring grooves has the advantages of high bearing capacity, long service life, easy fluid hydrodynamic lubrication, stable and reliable work process, simple structure, small axial size, simple processing process and low cost and so on. Practical application of the water lubrication thrust bearing with the ring grooves can improve whole device efficiency and reliability of water environment work machinery to a large extent, which brings better economic benefit and social benefit, and has better development potential and market prospect.

The invention discloses a special-specification vertical goods storing warehouse which comprises a vertical warehouse body, a lifting device and a cargo carrying tray, wherein the vertical warehouse body, the lifting device and the cargo carrying tray are connected; the vertical warehouse body comprises an upper frame, warehouse body pillars connected with the upper frame, rear connecting beams connected with the warehouse body pillars on the rear side, front guide pillars on the two sides and bottom connecting beams connected with the left and right warehouse body pillars; the tops of the front guide pillars are connected with the upper frame, and a cargo carrying tray support seat is arranged between the two warehouse body pillars on the same side; an upper guide wheel set and a lower guide wheel set are respectively arranged at the upper part and the lower part of each front guide pillar, and the lifting device is connected with the upper guide wheel set and the lower guide wheel set. The special-specification vertical goods storing warehouse is compact in structure and convenient in storage, transportation, loading and unloading, improves the efficiency of loading and unloading cargos, reduces labor intensity, and can meet the goods with special size storage requirements such as plates and bar stocks.

The invention relates to a combined PDC-thrust ball bearing long-life transmission shaft assembly. The combined PDC-thrust ball bearing long-life transmission shaft assembly comprises a transmission shaft, a lower TC movable sleeve, a lower TC static sleeve, a thrust ball bearing group, a PDC bearing group, an upper TC movable sleeve, an upper TC static sleeve and a transmission shaft shell, wherein the lower TC movable sleeve sleeves part of the shaft head of the transmission shaft; the lower part of the lower TC movable sleeve is connected with the transmission shaft; the lower TC static sleeve is mounted on the outer circumference of the lower TC movable cover in a matched manner; the lower TC static sleeve is connected with the lower end of the transmission shaft shell arranged at the outer circumference of the lower TC static sleeve; an anti-falling half ring, which is coaxial with the lower TC movable sleeve, is arranged at the upper end of the lower TC movable sleeve; the thrust ball bearing group and the PDC bearing group are sequentially mounted on the transmission shaft from top to bottom in a matched manner; the upper TC movable sleeve sleeves the upper part of the transmission shaft; the upper part of the upper TC movable sleeve is connected with that of the transmission shaft; the upper TC static sleeve is mounted on the outer circumference of the upper TC movable sleeve in a matched manner; a universal water-saving cap is also fixed at the upper end of the transmission shaft. The combined PDC-thrust ball bearing long-life transmission shaft assembly has the advantage that the overall service life of a screw drill can be effectively prolonged.

The invention provides a sliding type bearing assembly. The sliding type bearing assembly comprises two sliding rails and a tray, wherein the two sliding rails can be arranged in a case; the tray is connected between the two sliding rails in a sliding way; the tray comprises a bottom plate, two sidewalls and two sliding arms, and the two sidewalls upwards and vertically extend from two sides of the bottom plate, respectively; and the two sliding arms respectively and outwards extend from the top parts of the two sidewalls; one end of the bottom plate is protruded out of the two sliding arms; the two sliding arms can be respectively sleeved on the two sliding rails in a sliding manner; and the tray can be slipped, and then the parts, protruded out of the two sliding pars, of the bottom plate can extend out of the case. The sliding type bearing assembly is high in bearing capacity; and the bearing weight can be uniformly distributed while the bearing area is enlarged, so that the stress concentration can be avoided, and a server can be conveniently arranged.