48results about How to "Increase the rated load" patented technology

The invention relates to a seven-channel double offset type universal joint which consists of a cylindrical shell, a transmission shaft, an eccentric retainer, a plurality of steel balls, an inner race housing, a snap spring and an elastic collar. The number of the steel balls is seven, the number of openings of the eccentric retainer is seven, the number of the corresponding channels of the cylindrical shell and the inner race housing is also seven, the inner race housing is installed in the eccentric retainer, the seven channels of the cylindrical shell and the inner race housing are respectively corresponding to seven openings of the eccentric retainer, the steel balls are positioned in the seven channels of the inner race housing and the cylindrical shell, the inner race housing is installed on the transmission shaft by a spline and is axially positioned by a spring collar, the end edge of an inner bore of the cylindrical shell is provided with a snap spring groove which is internally provided with the snap spring. Compared with a traditional specific offset type universal joint, the carrying capacity of the seven-channel double offset type universal joint disclosed in the invention is increased, and rated load is raised by 16%; meanwhile, the phenomenon that eight steel balls are difficult to arrange can be avoided.

The invention discloses an oversize self-aligning roller bearing, which is provided with an outer ring (1) and an inner ring (2). A retainer is arranged between the outer ring (1) and the inner ring (2), and two groups of spherical rollers (4) are arranged in the retainer. The oversize self-aligning roller bearing is characterized in that: the rotation center of each spherical roller (4) is provided with a through hole; and the retainer consists of a pin shaft (9), and an inner plate annular retainer (6) and an outer plate annular retainer (16) at two ends of the pin shaft (9), wherein the pin shaft (9) runs through the through hole at the rotation center of the spherical roller (4), and the inner plate annular retainer and the outer plate annular retainer are arranged at two end faces of the spherical roller (4). The retainer is not integrated, but assembled, so the requirement of assembly precision between the retainer and the spherical rollers is reduced, and the retainer is easy to process and reduces the manufacturing cost. Moreover, the bearing can increase the number of the rollers as much as possible, and improves the rated load.

The invention relates to a milling machine, in particular to a gantry milling machine with multiple milling heads, which includes a bed, left and right columns, beams, and an electrical control cabinet. The workbench is provided with fixtures, the left and right columns are fixed on the bed, the beam is installed on the left and right columns to form a gantry frame, and the first milling head assembly is installed on the beam. The above-mentioned first milling head assembly is electrically connected with the electrical control cabinet, and a plurality of second milling head assemblies are installed on the beam, and a pushing mechanism for pushing the workbench is arranged on the bed, and the device also It includes an independent driving device that provides power for the pushing mechanism, and the second milling head assembly is electrically connected with the driving device and the electrical control cabinet. The invention can adjust the length of the processing surface according to the size of the product, and also has the advantages of simple structure, low equipment investment, stepless speed regulation, and improved production efficiency.

The invention provides an enhanced heavy-duty deep groove ball bearing. The bearing comprises an outer ring, an inner ring, rolling bodies and retainers, wherein the rolling bodies are arranged in a spherical pocket hole formed by two retainers; the inner ring and the outer ring are respectively arranged on the inner and outer sides of an annular body formed by the rolling bodies and the retainers; and a roller way of the inner ring and a roller way of the outer ring are respectively contacted with the rolling bodies. Platy rivets are adopted, and the two ribbon retainers are not directly contacted during riveting, so that inner space is increased; the enhanced heavy-duty deep groove ball bearing is provided with two to three more rolling bodies than the conventional deep groove ball bearing, and the diameter of the rolling bodies is one to two times larger than that of the rolling bodies of the conventional deep groove ball bearing, so that the bearing capacity of the bearing is 20 to 30 percent higher than that of the deep groove ball bearing of the same overall dimension, and the rated load of the bearing is equivalent to that of a cylindrical roller bearing of the same overall dimension; meanwhile, the limit rotating speed of the bearing is improved, and the rotating speed of the series bearing is 20 to 30 percent higher than that of the cylindrical roller bearing.

The invention relates to the technical field of linear guide rail accessories, in particular to a linear ball guide sleeve which is widely applied to sliding parts of a lathe, a grinder and other mechanical devices. The linear ball guide sleeve comprises a rotating shaft and a bearing sleeve, wherein the outside of the rotating shaft is sleeved with the bearing sleeve. The bearing sleeve comprises a holding frame and a bearing sleeve shell. Balls are arranged between the holding frame and the bearing sleeve shell. Stop rings are arranged at the two ends of the bearing sleeve. A pin hole is formed in the outside of the bearing sleeve shell. A pin is inserted into the pin hole to connect the holding frame with the bearing sleeve shell. The rotating shaft is provided with a plurality of circular arc-shaped rolling channels. According to the linear ball guide sleeve, the design is reasonable; the rotating shaft is provided with the multiple circular arc-shaped rolling channels so that the rated load can be improved; an oil injection hole is formed so that the lubrication performance of the linear ball guide sleeve can be improved; the abrasion resistance of the linear ball guide sleeve is improved and the service life is prolonged; the stop rings are arranged at the two ends of the bearing sleeve, and thus the linear ball guide sleeve has the advantage of dust prevention.

The invention discloses a movable spring armature component and a clapper relay thereof. The movable spring armature component comprises an armature, an injection molding part and a movable spring, wherein an upper part of the armature is provided with a matching part which is matched with a knife edge of a yoke of a magnetic circuit part of the relay, and one surface of the armature can be matched with a pole surface of an iron core of the magnetic circuit part of the relay through matching with the yoke; two sides of the armature are respectively provided with a bending part which is bent towards the direction deviating from one surface of the armature, and the injection molding piece is coated on the other surface and the side surface of the armature and completely coated on the bendingparts so as to be stably combined with the armature. The movable spring armature component provided by the invention has the characteristics of small component size, simple production and assembly, convenient realization of automatic production, small influence of accumulated assembly tolerance among multiple groups of movable springs, and good parameter consistency of batch production of finished relays.

The invention discloses a unit support carrying machine for coal mine. The unit support carrying machine for coal mine comprises a base, a rotary assembly, a control assembly, a large arm assembly, shovel forks, shovel plates and a travelling assembly, wherein the rotary assembly is arranged at the middle part of the base; the control assembly is arranged at the left side of the base; the large arm assembly comprises a swing arm barrel and a telescopic arm, the bottom end of the swing arm barrel is hinged to the rotary assembly, so that the left-right rotation and up-down swing movement of theswing arm barrel is completed through the rotary assembly, the telescopic arm is inserted into the top end of the swing arm barrel, and the telescopic arm is capable of carrying out telescopic actionrelative to the swing arm barrel; the shovel forks are hinged to the upper end and the lower end of the telescopic arm and capable of carrying out left-right swing movement, each shovel fork comprises a swing seat and one shovel plate, and a plurality of hoisting holes which are longitudinally and uniformly arranged are formed in each shovel fork; the shovel plates are hinged to the front top surface of the base and capable of carrying out up-down swing; and the travelling assembly is arranged on the bottom surface of the base to drive the carrying machine to move. The carrying machine has the advantages of being capable of saving manpower resource, high in safety, wide in working range and high in carrying efficiency.

The invention provides a cage with low cost and simple processing and used for a double row or multiple row cylinder roller bearing and the double row or multiple row cylinder roller bearing with thecage. The cage includes an annular main part and a plurality of fork parts. Each of the multiple fork parts extends from the axial end face of the main part to the axial outside. The multiple fork parts are arranged spaced apart from each other along a circumferential direction of the main part. Each of the multiple fork parts can be inserted into a hollow part of a corresponding roller so as to enable the cage to be guided by the rollers while holding the rollers.

The invention provides a spliced variable-load hoisting mechanism which comprises a vertical outer frame. The vertical outer frame comprises a plurality of element frames spliced up and down, a driving assembly is arranged at the top end of the vertical outer frame, a lift car assembly is arranged in the vertical outer frame, the lift car assembly is slidably connected with the vertical outer frame, and the driving assembly drives the lift car assembly to move up and down. Counterweight mechanisms are arranged on the two sides of the vertical outer frame, connected with the vertical outer frame in a sliding mode, connected with the lift car assembly and opposite to the lift car assembly in sliding direction, the weight of a lift car is balanced through the counterweight mechanisms, motor loads are reduced, and energy consumption is reduced. The rated load of the lift car can be increased by increasing the number of counterweights of the counterweight mechanism, and a high-power motor is not needed. The lift car adopts lifting points and a plurality of guide wheels, so that the lift car does not incline when goods enter and exit, and the safety is high.

The invention relates to a method for realizing network disc local write cache control in a disk-free system, comprising: a client executes write cache configuration operation in a memory of a native machine according to parameters set by a server; and the client receives input data according to the input operation of a user, judges whether the native machine enables a write cache function or not, writes the input data into a remote server according to the judging result or judges whether the write cache region of the native machine is filled with data, and writes the input data into the remote server or directly writes the input data into the write cache region of the native machine according the judging result. By adopting the method for realizing network disk local write cache control in the disk-free system, the write pressure of the client to the server is reduced, the rated capacities of the server and the network are obviously expanded, the write pressure of the server is reduced to about one fifth of the original write pressure, the capacity of the server is improved by more than three times, the working performance is stable and reliable, and the application range is wider.

The invention discloses a large-tonnage sunken ship salvage hydraulic buffering synchronous lifting system offshore test platform, which belongs to the technical field of salvage, and comprises a barge, a plurality of groups of synchronous lifting devices, a sunken ship simulator and a monitoring system, the synchronous lifting device is connected with the shipwreck simulator through a steel wire rope. According to the offshore test platform of the large-tonnage sunken ship salvage hydraulic buffering synchronous lifting system, the offshore test platform is provided, reasonable simplification treatment is carried out by adopting a sunken ship overall salvage scheme of the hydraulic buffering synchronous lifting system, and an offshore simulation test of sunken ship overall salvage is carried out; key performance indexes such as rated load, lifting and descending speed, buffer compensation performance and synchronization precision of the whole hydraulic buffer synchronous lifting system are tested and verified more systematically and accurately, and a more accurate and reliable technical basis is provided for scheme design of formal salvage engineering.

Provided is a surgical instrument (1), in particular a surgical milling or drilling instrument, comprising an instrument shank (2) having an effector (4) at its distal end portion and a coupling structure (6) at its proximal end portion. The coupling structure is designed to be selectively coupled, is axially fixedly and for conjoint rotation, to a drive received in a housing, preferably a handpiece, in order to thereby transmit a rotation of the drive to the instrument shank (2), so that at least one rotary bearing (8) for rotatably supporting the instrument shank (2) on the housing, preferably handpiece, is located between the instrument shank (2) and the housing, preferably handpiece. The rotary bearing (8) and the instrument shank (2) are combined in a unit which, for coupling to the drive can be introduced into the housing, and for uncoupling from the drive can be withdrawn from the housing, as a single unit.

The invention relates to the technical field of bearings, in particular to a thrust roller bearing which comprises a retainer and a plurality of rollers, wherein the retainer comprises an annular outer diameter check ring and an annular inner diameter check ring, a plurality of connecting beams with large outer ends and small inner ends are distributed between the outer diameter check ring and the inner diameter check ring in the circumferential direction at unequal intervals, and a window used for containing the rollers is formed between every two adjacent connecting beams; at least two of the connecting beams are main beams, and the other connecting beams are auxiliary beams. The design that the main beams are combined with the auxiliary beams is adopted, the occupied space of the main beams is increased by reducing the occupied space of the auxiliary beams, and the rollers are distributed between the outer diameter check ring and the inner diameter check ring in the circumferential direction in a non-equal-interval mode, so that the number of the rollers is increased in a limited space, the rated load of the bearing is improved, the service life of the bearing is prolonged, the application range of the bearing is widened, meanwhile, the main beams can be connected between the outer diameter check ring and the inner diameter check ring in a large size, and the overall strength of the retainer is guaranteed.