25 results about "Groove width" patented technology

The application discloses a joint structure of high-energy beam welding and a processing and welding method thereof, and aims at solving the problems of stress concentration, gas residue, heat affected zone and difficult control of welding quality in the prior art. The joint structure comprises coaxially assembled base material I and base material II; a first annular groove is arranged on a welding surface of the base material I, a second annular groove is arranged on a welding surface of the base material II, the groove widths of the first annular groove and the second annular groove are consistent and the positions of the first annular groove and the second annular groove correspond; the first annular groove and the second annular groove form an annular stress relief channel after the base material I and the base material II are assembled; at least one exhaust channel is arranged on the base material I and / or the base material II, one end of the exhaust channel is communicated with the annular stress relief channel, and the other end is used for communicating with an external environment; and the maximum radial dimension of the communicated position of the exhaust channel and the annular stress relief channel is smaller than the groove width of the annular stress relief channel. The structure can eliminate stress concentration during welding, and prevent the initiation and expansion of cracks after welding.

This invention discloses an online tool health monitoring method and system based on workpiece machining quality data fusion. First, the deviation between the actual groove width and the standard groove width of the workpiece is calculated, constructing a time-series sequence of groove width deviation. Then, a sliding time window mechanism is used to dynamically extract multi-dimensional time-series features, including mean, standard deviation, slope, out-of-tolerance count, and previous values, comprehensively characterizing the nonlinear evolution trend during tool wear. Further, the fused feature vector can be input into a random forest regression model to achieve high-precision prediction of the current groove width. Finally, based on the deviation between the predicted groove width and the standard groove width, the tool degradation state is evaluated in real time. This invention directly utilizes groove width data from the machining process, eliminating the need for additional sensor deployment. It offers advantages such as low cost, high reliability, and strong real-time performance, reducing scrap rate and improving tool life without increasing hardware investment.

The utility model discloses a kind of layered weight-reducing groove type bulkheads, which is made by two layered structure plates opposite spliced, the layered structure plate thickness is half of general groove type bulkhead, the layered structure plate is divided into short distance groove and long rectangle groove, two kinds of grooves are oppositely arranged with interval, when two layered structure plates are spliced, the short distance groove outer ridge of one layered structure plate is spliced with the long rectangle groove inner groove of another layered structure plate, compared with general groove type bulkhead, the thickness of the layered spliced groove plate is the same on the same section, and the plate material of two layered structure plates is the same, but the groove wall of the layered spliced groove plate groove is the same as the general groove type bulkhead with the same length and the same number of groove width of short distance groove, but the groove wall of the layered structure plate is thinner, so the material is less.

We provide forging techniques that ensure sufficient meat flow. [Solution] The groove width of the helical groove 44 provided in the punch body 43 is set to G1, and the groove width of the helical groove 23 provided in the helical die 21 is set to G2. The groove width G1 of the helical groove 44 is set to be wider than the groove width G2 of the helical groove 23. The helical groove 23 and the helical groove 44 are connected via a tapered groove 24 provided on the helical die 21 side. During forging, a portion of the material flows from the helical groove 23 into the helical groove 44 as shown by arrow (1).

To achieve a balance between center wear resistance and wet performance. [Solution] The tire comprises a center circumferential groove 21 having alternating first inclined grooves 21Sa and second inclined grooves 21Sb arranged on the tire equatorial plane CL, a shoulder circumferential groove 22 having alternating third inclined grooves 22Sa and fourth inclined grooves 22Sb on the outer side of the center circumferential groove 21 in the tire width direction, a center land portion 31 between each circumferential groove 21, 22, and a center lug groove 50 connecting the tops of the center circumferential groove 21 and the shoulder circumferential groove 22. The center circumferential groove 21 has a first inclined groove 21Sa with an angle θ1 of 5° to 24° in absolute value relative to the tire circumferential direction, and a second inclined groove 21Sb with an angle θ2 of 20° to 40° in absolute value relative to the tire circumferential direction. Each center lug groove 50 is composed of an inner groove 50i with a groove width W1 on the center circumferential groove 21 side and an outer groove 50o with a groove width W2 on the shoulder circumferential groove 22 side, with the groove width W1 being narrower than the groove width W2.

The application discloses an engineering tire pattern structure with equal groove width, variable pitch, low noise and full wear period, and the like, and relates to the technical field of tires. The application breaks through the technical bottleneck of single performance, inconsistent performance of each pitch, uneven wear, poor structural reliability and low universality in the design of a traditional engineering tire variable pitch, and through integrated innovative design of equal groove width basic design+density differentiation matrix solid convex point+three-order universal pitch proportion, the application realizes the coordinated consideration of low noise, performance consistency, uniform wear and structural reliability, and is suitable for the use requirements of engineering tires in heavy load and multiple working conditions in all directions.

This utility model relates to the field of ultrasonic welding equipment technology, and provides a base for an ultrasonic welding machine, solving the technical problems of limited fixed groove width and inefficient replacement and adjustment in existing bases. The base of this ultrasonic welding machine includes a base body, characterized in that: a pair of adjusting plates are respectively disposed on both sides of the base body in the width direction and extend along the length direction of the base body; the adjusting plates are in contact with the upper end surface of the base body; the inner sidewalls of the pair of adjusting plates and the top wall of the base body are joined to form a strip positioning groove; the pair of adjusting plates move towards each other or away from each other under the action of an adjusting drive structure to adjust the width of the strip positioning groove.

The application relates to a guide wall groove excavation positioning measuring device, belonging to the field of civil construction, which comprises a placing frame, the placing frame is placed on the ground and located at the groove opening of the groove, two laser levels are arranged on the placing frame, and a single laser level is used for calibrating one groove wall of the groove. In the process of groove excavation, the laser level is used for real-time excavation guidance of the groove wall surface, so that the planeness precision of the groove wall, the groove width size precision and the angle precision of the transverse extension direction of the groove are improved.

A rotary electric machine comprises a rotor and a stator, wherein one of the rotor and the stator includes: a groove portion that is formed on a circumferential surface facing the other of the rotor and the stator and extends in a direction that intersects with a circumferential direction, and a covering portion made of resin that covers the groove portion. The groove portion includes a retention portion that is formed such that a groove width at a second position is wider than a groove width at a first position, wherein the second position is separated in a radial direction from an opening farther than the first position. The retention portion is configured so as to prevent removal of the covering portion by engaging with resin material that is filled in the groove portion.

Provided is a tire that improves noise performance while maintaining snow performance. At least two meandering grooves (26(28)) are provided, at least one end of the meandering grooves in the tire width direction communicates with a circumferential main groove, and the meandering grooves have at least two meandering portions, in which adjacent groove portions in the tire circumferential direction are in each other, at least one set of groove portions differ in groove width between each other, PTA1 (%) is 0% or more and less than 50%, and PTB2 (%) > PTB1 (%) and PTB2 (%) > PTB3 (%).

The application provides a tire, and a tread of the tire is provided with a pattern structure, which comprises: a plurality of communicating transverse grooves, which are arranged at intervals along the circumference of the tire to separate the tread into a plurality of pattern units; a communicating longitudinal groove arranged on at least one pattern unit, two ends of the communicating longitudinal groove being communicated with two adjacent communicating transverse grooves respectively; and a flow guide groove arranged on at least one pattern unit, one end of the flow guide groove being communicated with the communicating longitudinal groove through one of the two adjacent communicating transverse grooves, and the other end of the flow guide groove being arranged at intervals from the other of the two adjacent communicating transverse grooves; wherein the flow guide groove comprises a first flow guide groove and a second flow guide groove arranged on the bottom wall of the first flow guide groove, and the groove widths of the first flow guide groove and the second flow guide groove gradually decrease in the direction from the communicating longitudinal groove to the flow guide groove. The application effectively solves the problem that the overall rigidity of the MT tire in the prior art is low while the mud discharge performance is realized.

To achieve a balance between wet performance, wear resistance, and stone drilling resistance. [Solution] The tread portion includes a plurality of circumferential main grooves 20 extending along the tire circumferential direction and arranged in the tire width direction, a plurality of lug grooves 50, 60 extending along the tire width direction and arranged in the tire circumferential direction and opening into the circumferential main grooves 20, a recess 20U in the groove wall 20c of the circumferential main groove 20 in which the groove width is widened in at least a portion between adjacent lug grooves 50, 60 in the tire circumferential direction, and a bottom upper portion 90 provided in the recess 20U and projecting from the groove bottom 20b side of the circumferential main groove 20 toward the tread surface 15A. A feature thereof is that the wall portion 90c rising from the groove bottom 20b of the circumferential main groove 20 is continuous on the same plane with the groove wall 20c of the circumferential main groove 20 in the portion of the circumferential main groove 20 that does not have a recess 20U, and is positioned on at least one of both groove walls 20c of the circumferential main groove 20 in the area excluding the lug grooves 50, 60.

The present invention provides a tire that maintains wet performance and improves noise performance. When the area from the center line of the outermost circumferential main groove (14c, 14d) in the tire width direction toward the inner side in the tire width direction is defined as the central region (CR), at least one curved groove (26 (28)) is provided in at least one circumferential portion (16) formed in the central region. At least one end of the curved groove (26 (28)) in the tire width direction is connected to the circumferential main groove, and the curved groove (26 (28)) has at least two curved portions. The groove width (W1 (W2)) of the first portion (26a (28a)) from one end of the curved groove to the front of the first curved portion and the groove width (W3 (W4)) of the second portion (26b (28b)) from the other end of the curved groove to the front of the first curved portion are substantially the same on the whole circumference of the tire, and satisfy P2 (%) > P1 (%) and P2 (%) > P3 (%).

This utility model discloses an adjustable device for testing mounted equipment, relating to the field of mounted equipment technology. It includes: a device body, which is square in structure, with through holes extending through one set of opposite faces along the horizontal direction for placing the mounted equipment; two adjusting blocks, each T-shaped, comprising a horizontal and a vertical portion; a groove on the top of the device body, the groove width being greater than or equal to the width of the vertical portion and less than the width of the horizontal portion; the vertical portion of the adjusting block passing through the groove and positioned within the through holes of the device body, while the horizontal portion is positioned on top of the device body; the adjusting block is slidably connected within the groove; a slot is formed at the bottom of the vertical portion facing the horizontal portion, the shape of which matches the shape of the mounting ring of the device to be mounted; and mounting holes are formed through the groove wall of the vertical portion at positions corresponding to the mounting ring for mounting bolt assemblies.

The utility model belongs to the field of measuring tool, specifically speak to the caliper for measuring the inner groove width, including the main ruler body and the vernier body, the bottom fixed connection of main ruler body has the outer measuring claw no.

The utility model relates to the field of conveyer belt, especially a conveyer belt. The conveyer belt is provided with a plurality of grooves, the groove design pattern is W shape, the groove and the panel on the conveyer belt form the height difference, the groove and the panel are discontinuous and are provided, the panel of conveyer belt is provided with a plurality of vertical grooves, the bending angle of groove is 60 150 DEG, the bending part has the fillet design, the fillet radius is 0.5 5mm, the interval width between two bending of groove is 8 30mm, the groove width is 1 12mm, the groove depth is 1 7mm. Set up the groove and vertical groove increase the friction of conveyer belt and the silicon plate on solar photovoltaic panel, can let the cleaning machine better motion climb the slope and turn on the inclined silicon plate, when the cleaning machine carries out the water spraying operation, the vertical groove and the groove play the water function and avoid the reduction of the conveyer belt friction, lead to the equipment slide, and the groove setting is W shape can also can scrape the dust type rubbish on the silicon plate.

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.

To provide a tire that suppresses the occurrence of groove cracks in tires containing identification information, while also allowing for clear identification of the identification information. [Solution] The stress relaxation layer (52) is characterized in that it mainly consists of diene-based rubber material and non-diene-based rubber material, and also contains carbon and a vulcanizing agent, and identification information (70) is formed in a region other than the groove width region of the stress relaxation layer that is 0.1 times the groove width dimension (Wc) on each side of the groove width direction from the groove width direction center line of the groove bottom (44).

The application relates to the spring detection technical field, and particularly discloses an arc-shaped spring end face perpendicularity detection device and a detection method, which comprises a supporting seat, a clamping seat is rotationally arranged on the supporting seat, an arc-shaped groove is formed in the clamping seat, a positioning pin is arranged at one end of the inner bottom wall of the arc-shaped groove, an angle sensor is arranged on the supporting seat, the angle sensor is located on the rotating path of the clamping seat, one end of the arc-shaped groove close to the positioning pin is matched with a standard part, the groove width of the arc-shaped groove gradually increases from one end of the positioning pin to the other end of the positioning pin, and an adjusting mechanism for adjusting the groove width of the arc-shaped groove is arranged on the clamping seat. The groove width of the arc-shaped groove is adjusted through the adjusting mechanism, the to-be-detected part is clamped in the free state and the standard state, and the perpendicularity effect in the two states is detected respectively.

The present application provides a tire that improves performance on snow and noise performance. The tire has a tread portion (2). A first intermediate transverse groove (11) is provided in an intermediate land portion (7) of the tread portion (2). The first intermediate transverse groove (11) includes a first groove portion (31), a second groove portion (32) inclined in the same direction as the first groove portion (31), and a third groove portion (33) located between the first groove portion (31) and the second groove portion (32) and inclined in the opposite direction to the first groove portion (31) with respect to the tire axial direction. The groove width of the first groove portion (31) increases from the third groove portion (33) toward the outside in the tire axial direction. The groove width of the second groove portion (32) increases from the third groove portion (33) toward the inside in the tire axial direction.

The utility model discloses a container, and the container comprises a bottom corner fitting, an end component and a collision-preventing groove. The end component is a bottom end beam or a door sill, and a notch is arranged on the lower edge of the part connected with the bottom corner fitting. The collision-preventing groove is connected to the end component and the bottom corner fitting with the notch opening downward, the groove width of the collision-preventing groove is the largest at the notch, the collision-preventing groove has an inner surface facing the groove, and the inner surface is smooth. The inner surface comprises a first inner side surface, an inner top surface and a second inner side surface which are connected smoothly in sequence. The first inner side surface and the second inner side surface are curved surfaces, or each comprises a planar part and a curved part which are connected smoothly, the planar part is below the curved part, and in the height direction of the container, the size of the curved part is larger than that of the planar part. According to the container of the utility model, the collision-preventing groove has high structural strength, good buffering effect on collision impact, improved anti-deformation capacity of the end component and reduced damage risk of the end floor.

This invention belongs to the field of parts processing technology and discloses a method for processing niobium flange sealing grooves. The method includes the following steps: controlling a cutting tool to cut the niobium flange at the location to be processed in the sealing groove according to a preset method, while continuously pouring coolant onto the cutting tool during the cutting process; and grinding the groove wall using a grinding tool. The preset method includes the following steps: S21, controlling the cutting tool to cut the niobium flange in N segments along the width direction of the sealing groove, with each segment having a cutting width of B and a cutting depth that increases progressively in an arithmetic progression with a tolerance of H; B is 1 / N of the sealing groove width, and H is 1 / N of the sealing groove depth; S22, repeating step S21 N-1 times in a progressively decreasing arithmetic progression until the sealing groove is completed, wherein the tolerance of the number of segments is 1. This method for processing niobium flange sealing grooves can reduce tool wear, extend tool life, and ensure the processing accuracy of the sealing groove.

The utility model relates to motor field especially is related to the framework with improving insulation effect, including framework body, the upper outer periphery of framework body is provided with a plurality of annular grooves, a plurality of notches are sequentially arranged along the upper portion of the circumference of framework body, each notch corresponds to the boss that framework body is all set up vertically on, the height value of each boss is all greater than the groove width value of annular groove, through above technical scheme, the utility model has the advantage that improves two phase insulation effect.

This invention belongs to the field of measurement technology, and specifically relates to a groove inner diameter measuring device. When the groove width is too small and the inner diameter caliper cannot meet the measurement requirements, this device can measure the inner diameter of the workpiece and the groove size. This measuring device can measure the inner diameter of workpieces with groove width less than 2mm, making up for the lack of similar measuring devices on the market, and can effectively ensure the assembly accuracy requirements of the workpiece.

[Task] Providing performance in terms of low rolling resistance and traction performance on snow in a compatible manner. [Solution] In a pneumatic tire (1), a central region (CC) has an area of ​​45% or more with respect to a total dead width (TDW) of a tread section and is located in the center of the tread section; a groove width (W) of each of the circumferential grooves (20) (shoulder circumferential grooves (22)) located at the outermost sides in the tire width direction, and a groove width (W1) of each of the other circumferential grooves (20) (central circumferential grooves (21)) satisfy the relationship W1 < W; the groove width (W1) of the central circumferential grooves (21) is 2% or less of the total dead width (TDW); a groove width (W2) of the narrow groove (52) is 0.9% or less of the total dead width (TDW); the groove width (W1) of the central circumferential grooves (21) and a rib width (Wr) of a rib (62) satisfy the relationship 1.0 ≤ Wr / W1 ≤ 2.0,The groove width (W1) of the central circumferential grooves (21) and a tire width dimension (Wc) of the central block (311) satisfy a relationship W1 ≤ Wc × 2.0 and a groove area ratio in the central region (CC) is 33% or less.