45results about How to "Reduce axial movement" patented technology

A novel assembly for a railcar axle bearing is presented. The assembly includes a backing ring affixed to the fillet of the journal of an axle and a locking ring for further affixing the backing ring the journal. The locking ring has an inboard end affixed to the dust guard of the axle and an outboard end for engaging the backing ring. The looking ring may include a resilient sealing ring.

A novel two-piece backing ring assembly for a railcar axle is presented. The backing ring assembly has an annular body affixed to the fillet of the journal and a locking ring for further affixing the annular body into position on the journal. The locking ring has an inboard end affixed to the dust guard of the shaft and an outboard end for engaging a slot in the annular body. The locking ring assembly may be retrofitted to older generation railcar axles to increase the structural rigidity of the bearing assembly and minimize fretting wear caused by railcar axle deflection.

The invention provides an O-ring sleeving pack mechanism. The O-ring sleeving pack mechanism comprises a bottom support frame and an O-ring feeding platform. A manipulator mounting plate is arranged on the bottom support frame. A lifting sliding rail is in the z-axis direction, and is arranged on one surface, close to the O-ring feeding platform, of the manipulator mounting plate. A transit connecting plate is arranged on the lifting sliding rail and driven by the lifting sliding rail to slide along the lifting sliding rail. A slab is arranged on the lower portion of the transit connecting plate. A straight sliding rail extends in the direction of the z-axis, and is fixedly arranged on one surface, away from the transit connecting plate, of the slab. A three-jaw cylinder expanding mechanism used for expanding an O-ring and is connected with the straight sliding rail. A translation cylinder drives the three-jaw cylinder expanding mechanism to slide at the y-axis along the straight sliding rail. The O-ring sleeving pack mechanism has high degree of automation, high accuracy of O-ring sleeving packing, high production efficiency, and no damage to the O-ring.

A novel assembly for a railcar axle bearing is presented. The assembly includes a backing ring affixed to the fillet of the journal of an axle and a locking ring for further affixing the backing ring the journal. The locking ring has an inboard end affixed to the dust guard of the axle and an outboard end for engaging the backing ring.

The invention discloses a photovoltaic cable joint connector, which comprises a cable joint waterproof sleeve (3), a cable primary and secondary joint (2) and two to-be-wired cables (1), the wiring ends of the two to-be-wired cables (1) are connected through the cable primary and secondary joint (2), and the cable joint waterproof sleeve (3) sleeves the cable primary and secondary joint (2) and is fixedly connected with the cable primary and secondary joint (2); the cable connector waterproof sleeve (3) is sleeved with the outer sleeve (4), two elastic wire clamping discs (5) are further arranged in the outer sleeve (4), the elastic wire clamping discs (5) and the outer sleeve (4) are fixed, and the cable connector waterproof sleeve (3) is arranged between the two elastic wire clamping discs (5). According to the technical scheme, the situation that connector connection is not firm after the cable connector is subjected to too large tension is prevented, and energy transmission and normal operation of a platform are guaranteed.

The invention belongs to the technical field of bearing manufacturing, and provides a rear retainer ring of a wagon rolling bearing. The rear retainer ring (1) is provided with a rear retainer body (1-1). The inner surface of the rear retainer body (1-1) is an arc surface matched with the outer wall surface of a shaft shoulder. One side end face of the rear retainer body (1-1) is provided with an annular notch. One end of a sealing ring (1-2) is located in the annular notch in the rear retainer body (1-1), and the other end of the sealing ring (1-2) is arranged on a dust guard seat (4) in a sleeving mode. The inner diameter surface I (12) of the sealing ring is in interference fit with the outer diameter surface (14) of the dust guard seat. The inner diameter surface I (12) of the sealing ring is provided with a conical surface, and the conical surface is of a structure gradually drawing down inwards from the end, away from the rear retainer body, of the sealing ring. According to the rear retainer ring, axial movement, caused by deflection of a main shaft and a shaft neck, of the rear retainer ring is reduced, reutilization of the rear retainer ring is achieved, and the overhaul cost is lowered.

An electrical connector has a first connector member, a second connector member, and a locking ring. The first connector member has a first contact and an abutment surface. The second connector memberhas a second contact for electrical connection with the first contact and a groove. The locking ring is disposed on the first connector member and has latching fingers. The latching fingers are of atleast a first type and a second type. The first type has a different length than the second type so that the first type engages the groove when the abutment surface is a first distance from the groove and the second type engages the groove when the abutment surface is a second distance from the groove when the first and second connector members are mated to lock the first connector member to thesecond connector member.

A ram air turbine assembly includes a governor shaft rotatable about an axis and a stop shaft coupled for rotation with the governor shaft. A rotatable housing portion surrounds at least a portion of the stop shaft. A lock plunger extends through an opening in the rotatable housing portion to prevent rotation of the rotatable housing portion and minimize vibration impact loading when stowed.

The invention provides a pipe joint, belongs to the technical field of machinery, and solves the problem that a waste product is easily formed when the existing pipe joint and a pipe are connected. The pipe joint comprises a joint body, wherein a connecting part is arranged on the joint body; a cylindrical retainer ring and a cylindrical cutting sleeve are arranged on the connecting part in a sleeving manner; a groove is formed in the outer end face of the retainer ring; the inner end of the cutting sleeve is clamped in the groove; a mounting cavity is formed between the inner side face of the cutting sleeve and the outer side face of the connecting part; an observation hole I communicating with the bottom of the groove is formed in the outer side face of the retainer ring; an observation hole II communicating with the mounting cavity is formed in the outer side face of the inner end of the cutting sleeve; and the observation hole II is formed in the outer side of the outer end face of the retainer ring. The pipe joint has the advantages of low rejection rate during connection and the like.

The invention belongs to the technical field of machine tool clamps, and relates to a skiving machine expansion sleeve type clamp. The clamp comprises a clamp sleeve used for clamping a workpiece, wherein elastic chucks are arranged on the periphery of the clamp sleeve and apply clamping force pointing to the geometric center of the clamp sleeve to the clamp sleeve, a clamp body is arranged at oneend of the clamp sleeve and provides structural support for the clamp sleeve and the elastic chucks, the elastic chucks are symmetrically arranged on the periphery of the clamp sleeve along the geometric center line of the clamp sleeve, and the elastic chucks are of a cylindrical structure. According to the clamp, workpiece positioning precision is improved, workpiece deformation is prevented, then gear cutting precision is improved, the gear cutting service life of a cutter can be prolonged to a certain extent, the structure is simple, the rotational inertia of a skiving machine workbench isreduced, and it is guaranteed that a machine tool can be safely and stably stopped.

The invention relates to a splice channel unit, a splicer and a textile machine. Here, air inlet ducts (660, 66u) are especially designed to be a splice channel (20) injecting splice air into the splice channel unit (60). According to specific variants of the splice channel unit, the splice channel unit has a) the minimum of the length l of a portion (69o, 69u) near outlets and the minimum of the diameter d of the outlets (70o, 70u) communicated with the splice channel (20), b) a value of the ratio r<ld>=l / d exceeding the minimums, wherein the portion (69o, 69u) near the outlets must basically not have structures which may prevent the splice air from flowing under the condition a) and the condition b), or c) the air inlet ducts (660, 66u) designed to enable the splice air to form a laminar flow imported to the splice channel (20) before the outlets (70o, 70u) of the splice channel (20) of the air inlet ducts when the splice air flows through the splice channel.

The invention provides a wheel-side reducer adopting grease separating lubrication. Leakage of a gear lubricant can be reduced, and the service life of bearings can be prolonged. The wheel-side reducer comprises a planetary part, a hub and a power input part. The input part comprises an input gear shaft and a shaft head, and the planetary part comprises a plurality of planetary gears which are engaged with the input gear shaft; the planetary gear shaft is sleeved with the multiple planetary gears in a corresponding mode, and the multiple planetary gears share the same gear ring which is fixedly arranged on a gear ring support; the gear ring support is connected with the shaft head, and the planetary gears, the planetary gear shaft and the gear ring are all arranged in a wheel-side shell; the hub and the wheel-side shell are detachably connected into a whole, and the hub is supported on the shaft head and the gear ring support through the inner bearing and the outer bearing; a first oil seal is arranged between the hub and the gear ring support, and a second oil seal is arranged between the hub and the shaft head through a oil seal seat; and the inner bearing and the outer bearing are arranged in a spaced mode, and a communicating channel is arranged between the inner bearing and the outer bearing.

The invention relates to a pressure limiting valve (1), in particular for a return line installed in a common rail system of an internal combustion engine, having a valve housing (2) with a housing top (3) and a hollow cylindrical housing housing (4), wherein there is an axial inlet (6) in the valve seat (5) of the valve housing (2) and at least one axially spaced from the inlet (6) open outlet (7), where in the valve seat (5) the inner seat (8) for the valve body (9) is connected to the inlet (6) and between the valve body (9) and the return spring ( Between 10) there is an axially movable valve piston (11), the return spring (10) generating a return force against the pressure (p) acting on the inlet (6). In order to improve the functional characteristics of the valve (1), the invention proposes that the valve body (9) is constructed as a multi-stage piston, in its first step (9a) it has on its surface facing the inlet (6) A first surface (A1) capable of bearing pressure (p) in the axial direction and a first axial length (L1) through which, in a closed position, the multistage The piston forms a circumferentially extending first throttling gap (14) with its outer surface (9d) and the inner surface (8b) of the valve seat (8), and in the second step (9b) of the multi-stage piston, its has a second surface (A2) capable of bearing pressure (p) in the axial direction (X‑X), which together with the first surface (A1) constitutes the total bearing surface (AG), and, at On the entire second axial length (L2) of the second step (9b), a circumferential gap is formed between the outer surface (9e) of the multistage piston (9) and the inner surface (2a) of the housing cover (4). An extended second throttle gap (15) having a second gap width (Sw).

The invention relates to the field of numerical control machine tools, and discloses a numerical control machine tool for efficient machining of a high-precision revolving body part. The numerical control machine tool comprises a base, the base is of a trapezoidal structure, a group of guide rails are fixedly mounted on the upper end surface of the base through bolts and parallel to each other, asliding block is in sliding connection with the surface of each guide rail, a connecting plate is mounted on the upper surface of each sliding block, and a high-precision revolving table is connectedto the upper end of each connecting plate, a first motor is mounted on the side edge of the revolving table and drives the revolving table to rotate. According to the numerical control machine tool for efficient machining of the high-precision revolving body part, the revolving table on the connecting plate is driven to do front-and-back linear motion along the guide rails through a lead screw, the revolving table is linked with a single horizontal shaft, the traditional design of a machine tool structure is simplified, an axial motion device is omitted, and accurate walking and positioning ofthe linear motion are more facilitated, so that efficient machining of the high-precision revolving body part is realized, and meanwhile, the manufacturing, assembling, maintaining and using costs ofthe equipment are reduced.

The invention discloses a scrap-free pipe cutting machine. The scrap-free pipe cutting machine comprises a main cutting shaft. A chuck for clamping a pipe is arranged inside the main cutting shaft in the axial direction. One end of the main cutting shaft is sleeved with a rotating sleeve, a cutter disc is fixed to the end face of the rotating sleeve, a blade sliding block and a supporting roller sliding block are installed on the cutter disc, the end face, far away from the main cutting shaft, of the blade sliding block and the end face, far away from the main cutting shaft, of the supporting roller sliding block are slopes, the blade sliding block is connected with a cutting blade through a bearing, and the supporting roller sliding block is connected with a supporting roller through a bearing. The outer side of the rotating sleeve is sleeved with a sliding outer sleeve. The inner wall of the sliding outer sleeve is in contact with the slope of the blade sliding block and the slope of the supporting roller sliding block, and under guiding of the slope of the blade sliding block and the slope of the supporting roller sliding block, the blade sliding block and the supporting roller sliding block are pressed by the sliding outer sleeve to move towards the center of the pipe. By means of the pipe cutting machine, the technical problem that a cut pipe opening of a cut pipe in the prior art has many waste scraps and burrs can be solved.

The invention relates to the field of shaft couplings, in particular to a cross cardan coupling, comprising a spline shaft, a spline sleeve is sheathed on the right side of the spline shaft, and a spline sleeve is provided on the left side of the spline sleeve. A locking mechanism is fixedly welded, and the locking mechanism is sleeved on the outer surface of the spline shaft. The right end of the spline sleeve is fixedly connected with a first flange, and the first flange passes through the first lock. Tight bolts are fixedly connected with a second flange. The invention can effectively reduce the friction between the spline shaft and the spline sleeve through the locking mechanism, slow down the degree of wear, and further improve the service life of the spline pair, and then through the first shock pad and the second shock absorber in the buffer mechanism The shock pad can buffer and weaken the axial impact force on the cross universal coupling, reducing its damage. At the same time, the protection mechanism has a good protection effect on the first cross shaft body and the second cross shaft body, greatly The service life of the cross universal coupling is improved.

The invention relates to a splicing channel unit, a splicer and a textile machine. A splicing channel unit (60) for a splicer (10) comprises a splicing channel (20) which is divided into two splicing chambers (20o, 20u) in the axial direction of the splicing channel, the axes (76, 77) of the two splicing chambers offset from each other, and the splicing channel unit (60) is characterized in that the curvature radius (80) of the abutting intersection angles (20SKo, 20SKu) of the two splicing chambers (20o, 20u) is more than 0 mm and less than 0.35 mm. However, the invention also relates to a splicer (10) containing the splicing channel unit (60) and a textile machine (1) with such a splicer (10).

The invention belongs to the technical field of machine tool clamps, and relates to an expansion sleeve type clamp for a gear turning machine, including a clamp sleeve, the clamp sleeve is used to clamp a workpiece; an elastic chuck is arranged on the outer periphery of the clamp sleeve, and the elastic chuck is The clamp sleeve exerts a clamping force directed to its geometric center; a clamp body is provided at one end of the clamp sleeve, and the clamp body provides structural support for the clamp sleeve and the elastic collet. The elastic collets are arranged symmetrically on the outer periphery of the clamp sleeve along the geometric center line thereof, and the elastic collets are in a cylindrical structure. The invention improves the positioning accuracy of the workpiece, prevents the deformation of the workpiece, and further improves the gear cutting accuracy, which can prolong the cutting life of the tool to a certain extent, and has a simple structure and reduces the moment of inertia of the gear turning machine workbench, ensuring that the machine tool can be stopped safely and smoothly .