11 results about "Axis surface" patented technology

This method for manufacturing a bearing element is provided with: a first step for preparing an upset workpiece; a second step for forming a recess (DP1), a flange (FR1), and a first axial surface (AX1) on the workpiece by means of one or two plastic working; and a third step of punching off the bottom of the recess (DP1) of the workpiece. The recess (DP1) has a depth in the axial direction with respect to the first axial surface (AX1). The flanges (FR1) extend towards the outer side in the radial direction. The first axial surface (AX1) formed in the second step provides one end surface of the bearing element. The rib (FR1) formed in the second step has a surface height substantially equal to or greater than the surface height of the first axial surface (AX1) at the radially outer end.

The utility model discloses a shaft rotation angle measuring tool which comprises a fixing piece used for positioning, a cross rod is rotatably arranged on the end portion of the fixing piece, a guide bearing is arranged on the end portion of the cross rod, a rotation tool is tightly attached to the shaft face of the guide bearing, and the rotation tool is connected with a V-shaped block in a clamping tool used for fixing a shaft to be measured. After the clamping tool clamps the to-be-detected shaft, the shaft rotates axially and drives the clamping tool to rotate synchronously, so that the rotary tool is driven to rotate, the sensor confirms the axial rotation angle of the shaft by detecting the rotation angle of the rotary tool, and the axial rotation angle of the shaft is detected by the rotation angle of the rotary tool. Therefore, accurate measurement of the rotation angle of the shaft is realized.

The utility model discloses a shaft part extension supporting structure for a numerical control machine tool, which belongs to the technical field of numerical control machine tools, and is characterized by comprising a mounting frame, a plurality of groups of displacement components are slidably connected in the mounting frame, and the top of each displacement component is fixedly connected with a lifting component. Through sliding of the displacement block in the mounting frame, the position of the supporting frame in the transverse direction can be rapidly changed, so that personalized supporting layout can be conducted according to shaft workpieces of different lengths and different shapes, and the overall universality and applicability are effectively improved; the lifting assembly can achieve independent and high-precision height adjustment of each supporting frame, no matter shaft workpieces with special shapes such as stepped shafts with multiple steps or conical shafts are machined, the supporting frames can be tightly attached to the shaft faces by independently adjusting the heights of the supporting frames, stable and reliable supporting is provided, and the machining efficiency is improved. And the machining adaptability to shaft workpieces with complex shapes is obviously improved.

The utility model relates to a plate cutting machine consisting of a plurality of sections of short rails and a sucker, which comprises a longitudinal guide rail, the sucker and a cutting device, the longitudinal guide rail is a U-shaped groove bearing seamless sliding rail in the cutting device formed by butting and inserting the upper parts and the lower parts of the two sides of the end surfaces of the plurality of sections of short rails with the same or different lengths through optical shafts; and the middle of the multi-section short rail body is butted and inserted with the front surface and the back surface of the sucker. Compared with the prior art, the cutting device has the advantages that firstly, the cutting can be completed at one time through the cutting device no matter how long plates are, and the consistency of the sections of the cut plates is ensured; secondly, the upper and lower short rail surfaces are hooped to the axial surface of the U-shaped groove in the cutting device; and thirdly, the phenomena of line breakage and non-uniform cutting of the cutting line of the plate are avoided, and the phenomena of irregular sections, ceramic cracking or breakage of the plate when the plate is broken after being marked are avoided.

This invention provides a multi-wire cutting device and a method for improving the stability of the multi-wire cutting process. The method includes: a measurement step: installing a main roller onto a multi-wire cutting machine, such that at least two axial surfaces of the main roller respectively mate with the bearing surfaces in corresponding bearing housings to form a rotating pair, and measuring the wear state parameters of each axial surface; a temperature setting step: based on the relative differences in the wear state parameters of each axial surface, differentially setting the break-in target temperature for the corresponding bearing housing, so that the break-in target temperature for the bearing housing corresponding to the axial surface with poor wear is lower than the break-in target temperature for the bearing housing corresponding to the axial surface with good wear; a break-in step: with the cutting wire wound around the V-groove of the main roller to form a cutting wire mesh and the worktable not lowering, driving the main roller to drive the cutting wire mesh to circulate at high speed for a certain period of time, while controlling the temperature of each bearing housing at the break-in target temperature set based on the wear state parameters of each axial surface; keeping the bearing temperature at a suitable temperature, slowing down the rusting process, thereby extending the service life of the bearing surface and improving the stability of the multi-wire cutting process.

This utility model relates to a ceramic plate cutting machine track composed of multiple short rails and a suction cup. It includes a longitudinal guide rail and a suction cup. The longitudinal guide rail is formed by multiple short rail segments of the same or different lengths, which are inserted into the front and back of the suction cup. The sides of the short rail segments are inserted opposite each other. An optical axis is embedded in the upper top and lower bottom of the through grooves on both sides of the short rail segments, forming a longitudinal sliding track. Advantages: Compared with the prior art, this utility model achieves three advantages: First, it enables the one-time scoring and cutting of any length of plate material, ensuring the consistency of the cut surface. Second, it provides a clamping effect between the upper and lower short rails on the U-shaped groove shaft surface of the cutting device. Third, it not only ensures that the cutting line will not break or be uneven, but also prevents uneven cross-sections, chipping, or breakage when the plate is broken after scoring.

This utility model discloses an intelligent composite process flow rate threshold plunger. The spindle includes a shaft body, with an upper end and a lower end connected to the upper and lower ends respectively. Multiple axially extending sealing plates are arranged on the shaft surface. A buffer space is provided at the connection between the upper and lower ends and the shaft body, with both ends of the sealing plates extending into the buffer space. An elastic reset element is provided between each sealing plate and the shaft body. An axially extending sliding groove is provided at the end of the shaft body, with the opening of the sliding groove facing the lower end. An axially extending through hole is provided at the lower end, with the through hole having the same axis as the sliding groove and its diameter smaller than the groove width. A limiting rod slides within the through hole, with both ends of the limiting rod extending out of the through hole. A limiting head is provided at the upper end of the limiting rod, and an impact element is provided at the lower end. The limiting head slides against the groove wall of the sliding groove. A pressure detection device is provided between the limiting head and the bottom of the sliding groove to detect the pressure the impact element withstands when impacted. This solves the problem of difficult-to-control plunger running speed.

The invention discloses a signal amplification device and method for continuously measuring bending stress of a rotating shaft section. The device comprises a split type chuck assembly, a test rod and a signal acquisition module. The split type chuck assembly surrounds and is fixed on the periphery of a rotating shaft to be detected, and is provided with a mounting fulcrum along the axial direction; two ends of the test rod are fixed between the mounting fulcrums, form height difference with the surface of the rotating shaft and synchronously rotate; the signal acquisition module comprises a strain gauge arranged on the surface of the test rod, a wireless strain collector and a power supply unit. The test rod is erected on the rotating shaft, and tiny bending deformation of the rotating shaft is converted into large stretching or compression deformation on the test rod by utilizing the height difference between the rod surface and the shaft surface and a mechanical connection structure, so that a strain signal is effectively amplified, and the problems of insufficient sensitivity and signal distortion of large-scale shaft system low-strain measurement are solved; and meanwhile, the installation limitation of directly pasting the strain gauge on the shaft is avoided.

The invention discloses a blade design method based on segmented curvature control and a runner designed thereof.The method comprises the steps that firstly, according to the extending direction of a blade, the position of a blade inlet is determined to be a first end, the position of a blade outlet is determined to be a second end, and a blade inlet angle is determined according to a speed triangle formed by the blade incoming flow speed and the blade circumferential speed; 2, according to the values of a front control point l1 and a rear control point l2 given by design requirements, the blade profile curvature k of a preset position on the blade axial surface streamline is determined; and 3, according to the blade profile curvature k determined in the step 2, determining the blade placement angle alpha of the position according to point-by-point integration. The blade of the rotating wheel is obtained through design of the method and comprises an inlet angle, an outlet angle and a molded line. Starting from controlling the blade profile curvature, the blade curvature is directly controlled so that the blade can be matched with a flow field, flow in a blade runner under the non-design working condition can be improved, and the wide working condition performance of the runner is improved.

The utility model relates to the technical field of dismounting tool, aims at solving the problem of the prior art that dismounting is complicated, easily leads to gland deformation or sealing groove damage, time -consuming and labor -intensive, easily causes sealed structure damage, operation space is limited and easily damages shaft surface or hole wall, provides a kind of pincer tool for dismounting shaft YX sealing ring gland, including first handle and second handle;First handle and second handle mutually symmetrical distribution, first handle and second handle have first dog and second dog respectively in the same end, first dog and second dog mutually away and symmetrical distribution;First handle and second handle are mutually hinged connection.The utility model has the beneficial effects that simple structure, simple operation, time -saving and labor -saving, not easily leading to gland deformation or sealing groove damage, low maintenance cost, operation space is not limited and avoids damaging shaft surface or hole wall.

A braking assembly (100) for a wheel (W) is described. The braking assembly (100) comprises at least a first brake disc (102) having a central axis (x1) and arranged to be coupled to a first side (S1) of the wheel. The first brake disc (102) comprises a wheel coupling face (104) and defines at least one through-hole (106) along an axis (x2) parallel to the central axis (x1) of the first brake disc (102). The at least one through-hole (106) defined by the first brake disc (102) defines at least one inner portion (108) concave toward the axis (x2) along which the through-hole (106) is defined and having a decreasing diameter toward the wheel coupling face (104). The braking assembly (100) further comprises at least one fastening means (110) comprising a first convex portion (112), complementary to the concave inner portion (108) defined by the through-hole (106) of the first brake disc (102). At least part of the first convex portion (112) of the fastening means (110) is arranged to abut against at least part of the concave inner portion (108) defined by the through-hole (106) of the first brake disc (102), when the first brake disc (102) is coupled to the first side (S1) of the wheel. A wheel, a brake disc and a further braking assembly are also described.