73 results about "Thrust block" patented technology

The utility model relates to a light large-span wave compensation type seaborne lightering device which comprises a mechanical body, a hydraulic system and an electric control system, and the mechanical body comprises a container type base, an anti-swing base assembly, a rotary tower body assembly, an arm frame assembly, a working basket assembly, a winding and unwinding winch assembly and a variable-amplitude oil cylinder. The container type base is connected with a ship body base, and the anti-swing base assembly is connected with the container type base through a fastener and a thrust block. The slewing tower body assembly is connected with the anti-swing base assembly through a slewing support; the arm support assembly is connected with the slewing tower body assembly through a variable-amplitude oil cylinder and a pin shaft assembly; the working basket assembly is connected with the arm support assembly through a variable-amplitude oil cylinder and a pin shaft assembly; the winding and unwinding winch assembly is installed at the lower end of the boom assembly. The hydraulic system is connected with the anti-swing base assembly, the rotary tower body assembly, the arm frame assembly, the working basket assembly, the winding and unwinding winch assembly and the variable-amplitude oil cylinder. The electric control system is connected with the hydraulic system. The maritime lightering device has high environment self-adaptive capacity and high reliability.

The invention provides an automatic grounding wire clamp which comprises a grounding wire clamp body, an electric locking mechanism and an execution assembly, the electric locking mechanism comprises a locking sliding block driven by the execution assembly to move, and the execution assembly is started when a locking switch and an unlocking switch are triggered. The locking sliding block is driven to move close to the hook part of the grounding wire clamp main body to form a locking state for locking the cable and to move away from the hook part to form an unlocking state for unlocking the cable; a locking push block is movably arranged at the groove cavity of the hook part, is extruded by the cable sliding into the groove cavity of the hook part, and slides to trigger the locking switch; the upper part of the grounding wire clamp main body is provided with a lifting ring for lifting the unmanned aerial vehicle, the lifting ring can slide along the vertical direction, an unlocking push block is fixed on the lifting ring, and the unlocking switch is triggered when the unlocking push block slides upwards along with the lifting ring. According to the invention, automatic locking and unlocking can be realized in the mounting and dismounting process of the grounding wire clamp.

A retaining device for mounting a slide rail to a server rack between front and rear ends of the server rack includes a rear support unit connected with the rear end, and a front support unit connected with the slide rail. The rear support unit includes a rear support rail and a biasing member. The front support unit includes a front support rail telescopically disposed on the rear support rail, and a front bracket connectable with the front end and the slide rail. The front support rail has a thrust block abutting against the biasing member. The front support rail is moved rearwardly to move the slide rail and the front bracket toward the rear support rail so as to vary a distance between the front bracket and the rear end, and the thrust block compresses the biasing member to tightly connect the front bracket with the front end.

The invention provides a mechanical hook type girder pitching safety hook and a working method, relates to the field of quay crane safety facilities, and aims to solve the problems of power dependence defect of the existing hook type safety hook and high alignment difficulty of a plug pin type safety hook, the pitching safety hook is composed of a base, a hook tongue, a lock pin and a hook, and the hook tongue is rotatably mounted on the base; the thrust part and the hook part are ingenious in design, when the hook abuts against the thrust part, the hook tongue can rotate through pushing of the hook, rapid hooking action is achieved, manual high-altitude operation is not needed, the operation efficiency is greatly improved, and meanwhile the falling risk of personnel is eliminated; the lock pin is installed on the base in a sliding mode in the direction parallel to the rotating axis of the hook tongue, the trigger block and the lock block of the lock pin can synchronously act along with the action of the thrust block, the mechanical structure is simple, corrosion resistance is better in the high-salt-mist and high-humidity environment of a port, and the maintenance cost is reduced.

The limiting device comprises a crank arm, the crank arm is rotationally connected with a guide vane sleeve flange, a crank arm ring groove is formed in the outer wall of the crank arm, a thrust block is arranged on the guide vane sleeve flange, a thrust head extends out of the thrust block, and the structure of the thrust head is in sliding fit with the crank arm ring groove. The utility model has the following advantages: (1) the external modular design is convenient for intuitively monitoring the wear state and quickly dismounting and replacing, the maintenance-free stop block is welded on the guide vane sleeve flange, and the anti-vibration stability is enhanced by means of the top cover structure; (2) the limiting efficiency is enhanced by double stop blocks, the full opening / closing position of the guide vane is accurately locked, the lifting of the guide vane and the abnormal opening degree are effectively inhibited, and the chain damage is blocked in an accident; (3) an independent dismounting system avoids the interference of associated equipment and ensures the operation safety of the unit; and (4) the adaptability is high, a standardized device can be customized according to the unit scale, and the installed capacity limitation is broken through.

The invention relates to the technical field of machining, in particular to a hydro-generator thrust collar machining device and method, the machining device is used for machining a thrust collar of a hydro-generator, the machining device comprises a placing assembly, a rotating assembly and a machining assembly, and the machining assembly is arranged on a rotating platform and used for machining the thrust collar; a rigid supporting system is formed by the machining base and the fixing support, the fixing gear serves as an accurate transmission datum point, and when the driving part drives the rotating platform to rotate around the fixing gear, the position of the corresponding tool assembly can be adjusted so that machining can be conducted on the peripheral face of the thrust block at all angles, and machining precision is improved. That is, the machining cutter keeps synchronous displacement with the workpiece on the rotating platform, the relative position of the cutter system and the workpiece is kept constant through the structure, and positioning deviation generated by movement of the workpiece in traditional split equipment is eliminated. The problem that in the prior art, on-site machining of a thrust block of a hydro-generator cannot be achieved is solved.

The utility model relates to the technical field of pipe fitting machining, and discloses a pipe fitting clamping structure of a full-automatic pipe bending machine, which comprises a first supporting plate and a fixing plate fixedly connected to the outer wall of the first supporting plate, a moving mechanism is arranged on the first supporting plate, a clamping mechanism is arranged above the moving mechanism, and a clamping mechanism is arranged above the clamping mechanism. A pipe fitting is placed on the clamping groove in the top end of the lower clamping plate, and the hydraulic cylinder is started to drive the thrust block to move leftwards to extrude the stress block, so that the lower clamping plate can be driven to move upwards, and the pipe fitting placed at the top end of the lower clamping plate can be driven to move upwards in the upward moving process of the lower clamping plate; the upper clamping plate and the lower clamping plate are matched with each other until the top end of the pipe fitting is driven to be attached to the clamping groove in the bottom end of the upper clamping plate, so that the pipe fitting can be clamped through mutual matching of the upper clamping plate and the lower clamping plate, the pipe fitting is fixed, workers only need to place the pipe fitting in the supporting seat in the process, redundant process operation is not needed, and convenience and practicability are achieved.

The application discloses a kind of wind generating set electromagnetic brake splines dismounting device and dismounting method, for dismounting spline;The dismounting device includes two thrust blocks, two sliders, two fixed blocks and two adjusting screws;Two thrust blocks are respectively arranged in the opposite sides of the top of yaw motor end cover of wind generating set, and are respectively located in the opposite sides of spline;The side of each thrust block towards spline is formed with a limit structure, and the top surface of the side of thrust block towards spline is wedge surface;The side of each thrust block away from spline is formed with mounting groove;Two sliders are respectively installed in the mounting groove of two thrust blocks;Two fixed blocks are detachably installed in the opposite sides of the top of yaw motor end cover, and are respectively located outside two sliders;Two adjusting screws are respectively connected with two fixed blocks in one-to-one correspondence in horizontal direction by screw thread.This application can effectively solve the problems of limited spline dismounting space, poor centering effect, easy damage to components, insufficient universality and the like.

The present application relates to the technical field of vehicle braking, and provides a hand brake valve operating device and a hand brake valve. The operating device comprises a thrust block and a locking block, the locking block is provided with a sliding surface for the movement of the thrust block, a side wall protruding from the sliding surface, and a locking groove at the front end of the sliding surface for the falling of the thrust block; a crossbar is movably arranged on the side wall and at the front end of the locking groove; a false locking prevention mechanism comprises a false locking prevention pin movably connected to the crossbar, and when the thrust block is at a non-parking position, the false locking prevention pin blocks the edge of the locking groove; when the thrust block moves along the sliding surface to the parking position, the crossbar is pushed to drive the false locking prevention pin to leave a falling path for the thrust block to fall into the locking groove. The operating device and the hand brake valve of the present application can effectively avoid the occurrence of the "false locking" problem during parking braking through the false locking prevention mechanism, and improve the stability and safety of parking braking.

A retaining device for mounting a slide rail to a server rack between front and rear ends of the server rack includes a rear support unit connected with the rear end, and a front support unit connected with the slide rail. The rear support unit includes a rear support rail and a biasing member. The front support unit includes a front support rail telescopically disposed on the rear support rail, and a front bracket connectable with the front end and the slide rail. The front support rail has a thrust block abutting against the biasing member. The front support rail is moved rearwardly to move the slide rail and the front bracket toward the rear support rail so as to vary a distance between the front bracket and the rear end, and the thrust block compresses the biasing member to tightly connect the front bracket with the front end.

The invention belongs to the technical field of heavy truck cab damping, and particularly discloses a heavy truck cab damping system and method, a terminal and a medium. The thrust block is arranged on the supporting sliding rod in a sleeving manner and can axially slide relative to the supporting sliding rod; the mass block group comprises a plurality of annular mass blocks which are coaxially arranged on the supporting sliding rod in a sleeving manner and are positioned between the two thrust blocks; and the spring is arranged between the mass block group and the thrust block, so that the mass block group is clamped in the axial direction. A mass-spring resonance system is formed by combining the supporting sliding rods, the thrust blocks, the springs and the mass block sets, vibration energy can be effectively absorbed and counteracted when low-frequency vibration occurs in the cab, and shaking is remarkably weakened.

This utility model relates to the field of scroll compressor technology, and more particularly to an assembly structure and a scroll compressor. The assembly structure includes a crankshaft; a moving scroll plate with a shaft hole at its bottom, into which the end of the crankshaft is inserted, and a friction coating to reduce friction is provided between the crankshaft and the shaft hole; a frame through which the crankshaft passes, and the friction coating is provided at the contact points between the crankshaft and the frame; and a lower support body through which the crankshaft passes, and a thrust block is mounted on the crankshaft, with the friction coating also provided at the contact points between the crankshaft, the thrust block, and the lower support body. This assembly structure and the scroll compressor solve the problem of high bearing costs in existing scroll compressors.

The invention relates to the technical field of marine parts, and discloses a flexible and convenient upper rudder bearing and upper rudder bearing machining equipment, the flexible and convenient upper rudder bearing comprises a rudder bearing shell, a plurality of evenly distributed through holes are formed in the upper portion of the rudder bearing shell, and a plurality of thrust blocks are fixedly installed on the periphery of the rudder bearing shell; the rudder bearing frame is arranged above the rudder bearing shell; the radial bearing is arranged on the inner wall of the rudder bearing shell, and a rudderstock is sleeved with the radial bearing during installation; the axial bearing is arranged between the rudder bearing shell and the rudder bearing frame; the framework oil seal is arranged at the bottom of the joint of the radial bearing and the rudder bearing shell; and the protective sleeve is installed on the outer side of the rudder bearing shell, a plurality of blind holes are formed in the top of the protective sleeve, and the through holes are used in cooperation with the blind holes. By means of the prefabrication mode, the upper rudder bearing has a complete assembly state when being delivered to a shipyard, the shipyard only needs to connect and fix the rudder bearing shell and the rudder bearing frame through common bolts, and the installation period of a rudder system is greatly shortened.

The invention discloses an axial loading buffer device for a high-speed bearing test bed and a use method of the axial loading buffer device, and relates to the technical field of loading buffer devices for high-speed bearing test beds. An axial loading buffer device for a high-speed bearing test bed comprises a thrust block, an output end pressing plate, a thrust sleeve, a sleeve, a piston rod, an input end gland and a spring. The application method comprises the following steps: placing the electric cylinder at the rear end of the piston rod, and fixing a bearing test piece at the front end of the thrust block; the electric cylinder is started, the transmission rod of the electric cylinder pushes the piston rod to move forwards, and the thrust sleeve drives the thrust block to repeatedly load the bearing test piece under the elastic force action of the spring until loading is completed. The axial loading buffer device for the high-speed bearing test bed and the using method of the axial loading buffer device can be obtained.

A device for large ring shape correction, comprising a ring, a center base, a supporting roller mechanism, a measuring centering mechanism, a clamping limiting mechanism and a thrust block mechanism, a plurality of supporting roller mechanisms are evenly arranged on the circumference of the ring for driving the ring to rotate; a plurality of measuring centering mechanisms are evenly arranged on the circumference of the ring for positioning the ring center position, measuring the ring roundness error and the end face unevenness; a plurality of clamping limiting mechanisms are evenly arranged on the circumference of the ring for limiting the movement of the ring contact position; a plurality of thrust block mechanisms are evenly arranged on the circumference of the ring, one end of the thrust block mechanism is connected with the center base, the other end is in contact with the ring, the thrust block mechanism works on the ring along the radial outward to change the ring curvature to realize the roundness correction, works on the ring along the axial upward to change the ring end face curvature to realize the flatness and column correction. The present application can comprehensively correct the ring roundness, flatness and cylindricity, and has strong versatility for many shape error categories.

The utility model belongs to the technical field of sand core casting equipment, and particularly relates to a sand core drilling tool for casting an ejector rod hole, which comprises a base, an ejector rod hole drilling device and a sand core drilling device, a plurality of limiting blocks are distributed on the upper end face of the mould, and the limiting blocks are matched with one another to form a sand core placing position; the drilling mechanisms are arranged along the horizontal direction and are respectively aligned with the corresponding processing surfaces of the sand core; the sliding mechanism is used for bearing the mould and comprises sliding rails and moving parts capable of moving back and forth along the sliding rails, and limiting parts are arranged on the sliding rails and abut against the inner sides of the moving parts to limit transverse deviation of the sand cores on the mould; wherein a thrust block is arranged in the advancing direction of the sliding mechanism and is suitable for limiting the maximum stroke of the sliding mechanism so as to limit the hole depth of the sand core and prevent the drilling depth from exceeding the thickness of the side wall of the sand core, so that a drill bit is prevented from punching through the side wall of the sand core.

This utility model relates to the field of jig technology, specifically to a folding spoon jig, including a spoon and a clamping mechanism for holding the spoon. A jig fixing plate is movably arranged at the bottom of the clamping mechanism, and several cylinders a are fixed on the jig fixing plate. The output end of the cylinders a is equipped with a thrust block for cooperating with the clamping mechanism to bend the spoon. The clamping mechanism includes a jig base plate, a sliding frame, a clamping component, a lifting frame, and a cylinder b. This folding spoon jig achieves flexible adaptation of clamping spacing and quantity through the freely adjustable clamping component on the sliding frame. At the same time, the buffer module absorbs the impact force through the elastic deformation of the buffer spring, and the buffer spring compression stroke is adjusted by the internal hex nut to customize the buffering performance. Finally, under the synergistic action of the lifting frame driven by cylinder b and the thrust block linked by cylinder a, a highly flexible, impact-resistant, and customizable spoon folding effect is achieved.

The invention relates to the technical field of construction measurement and control, in particular to a pipeline deviation rectification control system for pipe jacking construction, which comprises a posture calibration module, a track recognition module, a variable analysis module, a thrust distribution module and a partition execution module. According to the method, the circumferential thrust difference and the attitude angle change direction are analyzed, attitude correction and path offset data are combined, a linkage judgment mechanism between the path and the attitude is constructed, the dominant deviation type in the propulsion process is recognized, the response direction is dynamically adjusted and controlled, and the propulsion variable matching relation is optimized; thrust output and speed data are utilized to establish a resistance distribution diagram, the thrust output proportion is accurately adjusted after the resistance concentration trend is recognized, thrust continuity and output trend consistency are adopted to merge and control sections, linkage regulation and control and partition updating of thrust blocks are achieved, posture adjustment, path deviation correction and thrust distribution form a unified coordination relation, and the thrust distribution accuracy is improved. And the direction control precision and the response synchronism in the pipeline propelling process are enhanced.

The utility model relates to a cooling system of a vertical thrust sliding bearing. The cooling system comprises a base, a thrust head and an axial thrust pad located between the base and the thrust head. The surface of the base is provided with an oil groove which is concavely arranged, and the oil groove extends towards the center of the base and penetrates through the inner wall of the base; one end, close to the base, of the thrust block extends outwards to form a step part; the guide bearing seat is of an annular structure; according to the cooling system disclosed by the utility model, efficient cooling, uniform lubrication and remarkable improvement of structural stability are realized through an innovative structural design and an optimized lubricating oil flowing path; lubricating oil enters the oil-water cooler from the working areas of the axial thrust pad and the guide bearing pad and enters the working areas again after being cooled, a first circulating channel and a second circulating channel of the lubricating oil are formed, efficient cyclic utilization of the lubricating oil is facilitated, and the working temperature of the bearing can be remarkably reduced; and the performance reduction or damage of the bearing caused by overheating is also avoided.

An axially limiting drum-tooth coupling and its installation and adjustment method are disclosed. The drum-tooth coupling includes an axial limiting assembly, comprising an active end limiting mechanism disposed on both sides of the transmission component and capable of elastically abutting against the active end external gear sleeve, and a driven end limiting mechanism capable of rigidly abutting against the driven end external gear sleeve. The active end limiting mechanism includes an active end thrust block axially slidably disposed within a cavity of the transmission component, and an elastic element providing axial elastic support for the active end thrust block. This coupling effectively limits the axial displacement of the motor shaft through the axial limiting assembly, while retaining the original high torque transmission capacity and deviation compensation characteristics of the drum-tooth coupling. The installation and adjustment method of this coupling is also simple and efficient, enabling quick and accurate installation and axial limiting adjustment, greatly improving installation efficiency and reliability.

The utility model belongs to the technical field of constructional engineering, and relates to a drill bit expanding device for a casing protection wall rotary excavating drilling pile, which is an expanding drill bit applied to a casing protection wall rotary excavating drilling pile process of pile foundation engineering, and the diameter of a hole-forming pile and smooth lowering of a casing pipe are guaranteed through the expanding device additionally arranged on the rotary excavating drill bit. According to the telescopic expanding drilling tool, a conventional rotary excavating double-bottom drill bit is modified, the telescopic expanding drilling tool has the expanding capacity by additionally installing components and optimizing a mechanical structure, and the arranged thrust block can achieve the expanding and closing functions of the telescopic expanding drilling tool according to the drilling state; the efficiency of casing running while drilling and the stability of casing running can be improved in an easily collapsed loose filling soil (stone) layer, and meanwhile, the pile diameter of a non-casing section subjected to reaming by adopting the device is kept consistent with the pile diameter of a casing section, so that a steel retaining casing with the same size can be prepared according to the requirement of the designed pile diameter; and the drilling cost can be effectively controlled, and the cost of over-pouring concrete in a sleeve section is saved.

A mechanism for quick character changing in sand molds is disclosed. The mold is mounted on the upper part of the upper mold base. The mechanism includes a stripper plate, a thrust block, a character striking rod, and a character quick-change key. The stripper plate is located below the upper mold base and is connected to the upper mold base via guide pillars. The thrust block is fixed to the upper part of the stripper plate, and the character striking rod is also fixed to the upper part of the stripper plate. The lower part of the mold has an ejection hole for the character striking rod to enter. The character quick-change key is embedded in the upper part of the mold, and its embedded position matches the upper end of the ejection hole. The thrust block limits the distance between the stripper plate and the upper mold base, so that when the stripper plate moves to its limit position, the upper end of the character striking rod is lower than the character quick-change key. The positions of the character striking rod and the character quick-change key are controlled by a detachable thrust block. During production, the thrust block is installed to limit the mold closing distance, and the top of the rod does not contact the character. When character replacement is required, the thrust block is removed, and the rod ejects the character after mold closing. This mechanism has high work efficiency, can be repeatedly implemented, and is suitable for quick-change requirements in production lines.

The invention belongs to the technical field of injectors, and particularly relates to a gas fuel injector which comprises a thrust block, an interval groove is formed in the outer arc face of the thrust block, a main shaft sealing ring is connected in the interval groove in the outer arc face of the thrust block in a sleeved mode, a containing cavity is formed in the middle of the inner arc face of the thrust block, and an adjusting bolt is in threaded connection with the top of the inner arc face of the thrust block. The outer arc face of the adjusting bolt is in threaded connection with a nut, air through channels are formed in the two sides of the inner arc face of the thrust block, the inner arc face of the containing cavity is sleeved with a spring, and one end of the spring abuts against the bottom face of the adjusting bolt. The gas fuel injector can automatically adjust the fuel injection flow according to different working conditions of the engine, the channel caliber is increased to increase the oil supply amount in high load, the caliber is reduced to avoid waste in low load, it is ensured that the engine can obtain optimal fuel supply under various working conditions, and the power output stability is improved.

This design facilitates the construction of thrust block arrangements that reduce the impact of thrust forces acting on pipe joints. [Solution] A piping construction method including a joint, comprising: an excavation step (S11) of excavating the ground at the location where the piping will be buried; and a placement step (S12) of placing the piping including the joint and a precast block that contacts the joint from the outside to receive the thrust force received by the joint from the fluid present in the piping.

The invention provides a large vertical motor thrust block based on phase change self-circulation and a lubricating and cooling system, and belongs to the technical field of vertical motor lubricating and cooling. The problems that an existing large vertical motor thrust and guide bearing lubricating and cooling system is complex in installation, large in water resource consumption, high in water leakage risk, high in cost and the like are solved. A guide tile assembly is installed on the inner wall of a base and outer cover assembly, a thrust tile assembly is installed at the bottom in the base and outer cover assembly, the lower end face of a thrust head is attached to the thrust tile assembly to form a thrust sliding pair, the lateral outer circle face of the thrust head makes contact with the guide tile assembly to form a guide sliding pair, and an inner hole of the thrust head is connected with a main shaft and synchronously rotates along with the main shaft. The internal cavity of the thrust block is filled with the phase change material, and the spiral fin cooler is communicated with the internal cavity of the thrust block. The phase-change heat transfer characteristic of the phase-change material is combined, self-cooling circulation without external cooling water and power is achieved, the equipment structure is simplified, the operation cost is reduced, the operation stability of the system is improved, and the service life of the system is prolonged.

The application provides a shaft end assembly of a compressor and the compressor, wherein the shaft end assembly of the compressor comprises a support, a driving shaft, a thrust bearing and a thrust block, the driving shaft and the thrust block are connected to the support respectively, one end of the thrust bearing is clamped on the driving shaft, the other end of the thrust bearing is clamped on the thrust block, the thrust bearing is located between the thrust block and the driving shaft, a second channel is arranged on the driving shaft along the axial direction of the driving shaft, a first channel is further arranged on the driving shaft, one end of the first channel is communicated with the second channel, and the other end of the first channel is arranged on the outer wall of the driving shaft, so that the oil in the compressor can be transported to the space between the support and the driving shaft through the second channel and the first channel, then flows to the space between the outer surface of the thrust bearing and the thrust block, and forms an oil film, which can overcome the defect that the scroll compressor in the prior art cannot form an oil film between the thrust bearing and the thrust block, and causes the sliding surface of the thrust block and the thrust bearing to be abraded.

The present application relates to the technical field of oil cylinder, specifically to an angular displacement swing oil cylinder, comprising a cylinder body and a piston, the inside of the cylinder body is provided with a hydraulic oil cavity, both ends of the hydraulic oil cavity are provided with a thrust block, and the two thrust blocks are symmetrically arranged, the piston is slidably arranged in the hydraulic oil cavity, the thrust block comprises a rotating seat, an outer shell, a sliding seat, a protective sleeve, a first friction ring and a second friction ring, the rotating seat is coaxially and rotatably connected into the left opening of the protective sleeve, the right end of the protective sleeve is coaxially and fixedly connected to the left end of the sliding seat, and the first friction ring is coaxially and fixedly connected to the left end of the sliding seat, the purpose of the present application is to solve the problem that the inertia accumulated in the swing process of the spiral swing oil cylinder is too large when the piston moves to the thrust bearing, and the impact force on the oil cylinder is too large when the piston stops, and the impact force on the thrust bearing when the piston stops needs to be reduced.

The utility model relates to the field of inner diameter dimension measurement, in particular to a tool for measuring the inner diameter dimension of a thrust block when the thrust block is heated by an on-site shrinkage fit method, which comprises a pipe body, a rectangular opening is arranged on the pipe body, a first hoop and a second hoop are sleeved on the pipe body, the inner diameter of the second hoop is fixedly connected with a lantern ring, and the lantern ring is fixedly connected with the inner diameter of the first hoop. One end of the pipe body is fixedly connected with a connecting ring, one side of the connecting ring is fixedly connected with a connecting pipe, one end of the connecting pipe is provided with a knob cover, and the interior of the knob cover is fixedly connected with a bidirectional screw rod. During use, the knob cover is screwed, the knob cover drives the two-way screw to rotate, the two-way screw drives the lantern ring to get away from each other, the lantern ring drives the first hoop and the second hoop to get away from each other, the first hoop and the second hoop drive the connecting block to move along the rectangular opening, and the connecting block drives the clamping plate to get away from each other, so that the length of the pipe body does not need to be adjusted; and the measurement is relatively convenient.

The utility model relates to the technical field of milling cutter correction, and discloses a milling cutter correction device which comprises a main sliding plate, a main sliding rail is fixedly connected to the upper surface of the main sliding plate, a thrust block is movably connected to the upper portion of the main sliding rail, an oil containing hole is formed in the right side surface of the thrust block, and a driving structure is arranged on the front side of the thrust block. The first motor works to drive the thrust block to carry out auxiliary detection towards the left side, and when the thrust block moves towards the right end, the trigger column on the surface of the left side of the storage box is triggered, so that lubricating oil is injected into the thrust block. In the prior art, due to errors of manual operation, the internal lubricating effect of the thrust block is poor, the lubricating oil adding process is time-consuming and labor-consuming, and the device can realize automatic lubricating oil filling, so that the detection efficiency is higher, and the abrasion between the thrust block and the main sliding rail is less.

The invention relates to a thrust testing mechanism, which comprises a jig which is provided with a positioning groove, a movable groove and a positioning block and is used for placing and fixing a product, and the jig is provided with a guide column which is used for guiding when a fixed plate moves; the fixing plate is provided with a guide sleeve which is matched with the guide column to enable the fixing plate to move, a handle is arranged on one side of the fixing plate and used for manually lifting the fixing plate through the handle, a guide rail and a limiting block are arranged on the other side of the fixing plate, and the limiting block can limit the moving displacement of the thrust block on the guide rail; the thrust block moves on the guide rail through the sliding block, one end of the thrust block is connected with a sleeve through an elastic piece, the thrust block can push a key of a product under the action of the elastic piece, and the thrust block is provided with a limiting rod which can be matched with the limiting block to limit displacement of the thrust block. By pushing the thrust block, the sleeve pushes the key of the product under the action of the elastic piece, whether the thrust value of the key is larger than the set standard value or not is judged according to whether the key is pushed or not, and then whether the key of the product is qualified or not is judged.