52 results about "Linear-motion bearing" patented technology

The invention relates to a rock joint sample direct shearing test box. The test box comprises a base, an upper shearing box and a lower shearing box which are used for placing a rock joint sample and a normal loading cushion block presses upon an upper joint block of a rock. A fixing support arranged downward is installed on the upper shearing box, a bearing support arranged upward is installed on the lower shearing box, a guiding rod is inserted into the fixing support and the bearing support in a penetrating mode, pin holes are formed in the fixing support, the guiding rod and the fixing support are fixed through a locating pin, and a linear motion bearing used for connecting the guiding rod with the bearing support is arranged in the slot of the bearing support. Compared with the prior art, by means of the test box, not only can free motion of the lower shearing box in the shearing direction in the rock joint sample shearing process be guaranteed, but also the problem that the upper shearing box is reversed upward is effectively solved; contact friction between the upper and lower shearing boxes in the rock joint sample shearing process and friction between the upper shearing box and the upper joint block of the rock are effectively reduced, so that the shearing process is more in line with the real condition.

A guide (10) associated with a linear motion and screw system is configured to at least partially surround one of a plurality of rolling elements (20) so as to prevent ball-to-ball contact between the one rolling element and adjacent rolling elements during displacement of the rolling element along a circulation ball track.

The invention discloses an intervention operation catheter clamping jaw with dual force feedback function, which relates to an intervention operation catheter clamping jaw and solves the problem that a minimally-invasive intervention operation catheter conveying device cannot feed back a push-pull force and a torsional force at the same time. Compression springs are fixedly connected in symmetrically placed spring fixing pieces, clamping disks are connected on the compression springs, a catheter is clamped through the two clamping disks, the clamping disks are connected with armatures through steel wire ropes, the armatures are arranged opposite to electromagnets, the spring fixing pieces and the electromagnets are fixed on an inner torsional ring and an inner ring end cover, an inner torsional rotating shaft and an inner ring shaft are matched with an inner ring of a deep groove ball bearing, a sliding sleeve is sleeved on an outer ring of the deep groove ball bearing, the sliding sleeve is matched with an inner ring of a sleeve type linear motion bearing, the linear motion bearing is fixed on a connector, a push sensor is arranged on the connector, and a torsional force sensor is arranged on the inner torsional ring. The intervention operation catheter clamping jaw realizes clamping, push-pull and torsional dual force feedback function of the intervention operation catheter.

The invention discloses an adjustable blood drawing auxiliary support. The adjustable blood drawing auxiliary support comprises a base. A movable tank is arranged at the top end in the base. A first threaded rod is arranged in the movable tank, the surface of one end of the first threaded rod is sleeved with a movable block, a fixed column is arranged on the top of the movable block, a movable column is arranged on the top of the fixed column, and a second threaded rod is arranged in the movable column. The fixed column, a first linear motion bearing, a rotary plate, the second threaded rod and the movable column are arranged and matched for use, the height of a fixing frame plate is conveniently adjusted, and the advantage that the hands, at different heights, of patients can be effectively fixed is enhanced. The fixing frame plate, an installing plate, a memory cotton block, a bearing block, a second linear motion bearing, a third threaded rod, a rotating plate and a spring are arranged and matched for use, motion of the memory cotton block is achieved, and the advantages that the arms, with different thicknesses, of the patients can be effectively fixed and the tightening state of the arms of the patients can be relieved are enhanced.

The invention relates to a direct-drive type double-stator oblique-pole double-freedom-degree permanent magnet generator for ocean energy power generation. An inner-outer-layer double-stator structureis adopted, and the winding directions of two sets of windings in two sets of stators are perpendicular to each other, and the two sets of windings are wound in the circumferential direction and theaxial direction respectively; a circular shaft and a waterproof outer shell are connected through a linear motion bearing and an embedded rotary bearing, and the linear and rotary relative motion of arotor is realized; permanent magnets are embedded in the rotor, the magnetizing directions of the adjacent permanent magnets in the axial direction are opposite, and the permanent magnets are arranged in the circumferential direction of the oblique poles; the wave energy is converted into linear motion mechanical energy of the rotor through a floater, a turnover magnetic field is generated in theaxial direction, and electromotive force is induced in the circumferential coil, so that wave energy power generation can be realized; the tidal energy is converted into the rotor rotating mechanicalenergy through an impeller; by virtue of the permanent magnet oblique poles, a turnover magnetic field is generated in the circumferential direction, an electromotive force is induced in the axial coil, and tidal energy power generation is realized; and the oblique poles reduce the positioning force of tooth grooves, so that the power generation quality is improved. According to the generator, the wave energy and the tidal energy can be utilized at the same time, so that the characteristic of high power generation efficiency can be realized, and the generator is suitable for popularization and application.

The invention relates to a precise vertical type length gauge. The precise vertical type length gauge comprises a measuring rod having a measuring head arranged at the bottom end thereof in a connecting manner, and a guide support mechanism which comprises a linear guide rail, a linear bearing arranged on the bottom end of the linear guide rail in the connecting manner and first and second sliding components arranged on the linear guide rail in a spaced and sliding manner; the measuring rod is arranged in the linear bearing in a sliding and sleeving manner, and is sequentially connected to the first sliding component and the second sliding component; the precise vertical type length gauge further comprises a measuring mechanism; the measuring mechanism comprises a reflective optical grid ruler/magnetic grid ruler which is arranged on the end face of one side of the linear guide rail in the connecting manner, and an optical grid reading head/magnetic grid reading head which is arranged on the first sliding component in the connecting manner and is dead against the reflective optical grid ruler/magnetic grid ruler to detect and output movement amount of the first sliding component when the measuring rod drives the first sliding component to move along the linear guide rail. The precise vertical type length gauge is high in measurement accuracy, has a oversized measuring range, and overcomes the disadvantages that an existing length gauge cannot give consideration to high accuracy and high measuring range.

The invention discloses a linear motion bearing assembly with an aim to solve the problem that an existing linear bearing is prone to dust. The technical scheme includes that linear bearings for a transmission shaft to penetrate are respectively arranged in the cavity as well as two ends of the cavity of a bearing block; two ends of the bearing block are respectively provided with an end cap usedfor pressing the linear bearings in the cavity of the bearing block; grooves are formed in inner walls of holes, and dust rings sleeving the transmission shaft are embedded in the grooves. The doublelinear bearing structure is favorable for stability of shaft motion, and linearity and bearing capability of shaft motion are improved; the end caps play a fixation role on the linear bearings and prevent the same from being separated from the cavity of the bearing block, and the end caps can be fixed with the end face of the bearing block through bolts; the dust rings in the grooves are tightly matched with the periphery face of the transmission shaft, dust particles, water and the like can be effectively prevented from entering the bearings, and abrasion and tearing of the bearings can be reduced.

The present invention relates to a production method of circulator used on linear motion bearing. Said production method includes the following steps: intermedium formation: using lubricant material and high-molecular material, etc. and adding adhesive, stirring them uniformly, utilizing mould to eject the formed intermedium; positioning intermedium: placing the formed intermedium into a circulator mould; MIM formation: ejecting meal powder from the circulator mould and covering said intermedium to form rough blank mould; degreasing and removing adhesive from rough blank mould; sintering the rough blank mould at high temperature, finishing and cooling so as to obtain the invented circulator.

[Problem] To provide an easily manufactured linear-motion bearing with a flange attached. [Solution] A linear-motion bearing with a flange attached in which: the linear-motion bearing includes an outer tube that comprises a metal material, a tubular rolling-element holder that is fitted inside the outer tube, and a plurality of rolling elements that are held by the tubular rolling-element holder; and the flange is annularly provided to the circumference of the outer tube of the linear-motion bearing. The linear-motion bearing with a flange attached is characterized in that the flange is formed by a mold being arranged on the circumference of the outer tube of the linear-motion bearing, a fluid resin material being poured into the mold, and the material being hardened.

A probe measuring device in which a probe is supported by a Y-axis stage (4) supported via a linear guide by a beam (32) at the top of a portal frame that moves freely in the X-axis direction relative to an object to be measured, wherein deterioration in measurement accuracy due to abrasion of the linear guide is prevented. The linear guide is composed of a pair of guide rails (51, 52) fixed to the undersurface of the beam (32), and a pair of linear-motion bearings (53, 54) that come into moveable contact with guide surfaces (51a, 52a), which are inclined relative to the vertical plane of the guide rails (51, 52). One of the linear-motion bearings (54) is made to float freely in the X-axis direction and the vertical direction relative to the Y-axis stage (4). An urging means (55), which urges the linear-motion bearing (54) in the X-axis direction in such a manner as to press the bearing against the guide surface (52a) of the guide rail (52), is disposed on the Y-axis stage (4), a second urging means (56), which urges the linear-motion bearing (54) downward, is disposed on the beam (32) side, and the direction of the vector of the resultant force of the urging forces of both urging means (55, 56) is thereby made to coincide with the normal direction of the guide surface (52a).

The invention discloses a cleaning device for a glass plate cutting process. The cleaning device comprises four clamping arms, a fixing rod and a brush. The clamping arms are respectively clamped to both sides of the top and the bottom of a glass plate; a threaded hole is formed in one side of each clamping arm, a screw is connected into each threaded hole in a threaded mode, a knob is fixed to the top of each screw, and a linear motion bearing is rotatably connected to the bottom of each screw; the clamping arms are clamped to both sides of the top and the bottom of the glass plate through the linear motion bearings, two pressure plates are placed on two sides of the surface of the glass plate respectively, and both ends of the pressure plates are located in the clamping arms. The cleaning device has the advantages that a cleaning rod is arranged at the top of the fixing rod, the brush is arranged on the lateral side of the cleaning rod, and glass scraps are swept into a collection box through brushing by the brush, so that the probability of contact between a worker and the glass scraps during working is reduced, and the construction safety of the worker is greatly improved.

The invention discloses a linear motion bearing with an aim to solve the problem that a positioning device is additionally arranged on an existing linear bearing costs high. The technical scheme includes that a positioning mechanism is arranged on the end face of a bearing outer ring and comprises a connecting sleeve fixed onto the end face of the bearing outer ring and extending outwards, a plurality of positioning blocks connected to the end face of the connecting sleeve and annularly arranged on a guiding shaft and a locking assembly abutted against end faces of the positioning blocks and away from the guiding shaft to force the positioning blocks to press the peripheral surface of the guiding shaft. The peripheral surface of the guiding shaft is pressed through the locking assembly, the body of the guiding shaft can be firmly clamped through the end face of the bearing outer ring, the axial position of the entire linear motion bearing on the guiding shaft can be effectively limited, external positioning structure is not needed, mounting cost is greatly reduced, and meanwhile, occupy space is reduced.

The invention discloses an anti-aging adjustable blood drawing device which comprises a base, wherein a moving slot is arranged at the top in the base; a first threaded rod is arranged in the moving slot; a moving block is sleeved on the surface at one end of the first threaded rod; a fixing column is arranged at the top of the moving block; a moving column is arranged at the top of the fixing column; a second threaded rod is arranged in the moving column. According to the invention, the fixing column, a first linear motion bearing, a rotating plate, the second threaded rod and the moving column are arranged for matching with each other in use, so that the advantages of convenience in adjusting the height of the fixing frame plate and enhancement for the efficient fixing for the patient hands at different heights can be achieved. The fixing frame plate, a mounting plate, a memory cotton block, a bearing block, a second linear motion bearing, a third threaded rod, a rotating plate and a spring are arranged for matching with each other in use, so that the advantages of convenience in moving the memory cotton block, enhancement for efficient fixing for the patient arms in different thickness and capability of relieving the tightening state of the patient arms can be achieved.