A cemented carbide composite roll facilitating monitoring of locking force of a roll ring

Abstract

The utility model relates to hard alloy composite roll technical field, concretely is a kind of hard alloy composite roll for monitoring the locking force of roll ring, the utility model discloses a kind of hard alloy composite roll for monitoring the locking force of roll ring, including roll shaft, the shaft shoulder of being arranged at the axial one end of roll shaft and the hydraulic nut of being arranged at the axial other end of roll shaft and being connected with roll shaft thread, the roll shaft is interposed between the position of shaft shoulder and the hydraulic nut is equipped with the roll ring and the ring that is arranged alternately in sequence, the annular groove with opening towards the hydraulic nut is equipped on the shaft shoulder and the ring, pressure sensor is equipped in the annular groove, the roll shaft is opened in the direction along the axis and is equipped with wiring slot, wiring slot is equipped with the wiring for being electrically connected with the pressure sensor and the plug that can block the end of wiring slot. The utility model has the advantage that the transmission pressure on each piece of roll ring before each time on line after the hard alloy composite roll after using multiple rounds can be accurately judged.

Description

TECHNICAL FIELD

[0001] The utility model relates to hard alloy composite roll technical field, concretely is a kind of hard alloy composite roll of roll ring locking force is monitored conveniently. BACKGROUND

[0002] Chinese patent application with application number 200710139364.8 discloses a split type inner hole without adjusting pad plate shape detection roller, including pressure sensor, mandrel, end cover, shaft head and fastening bolt, the hollow mandrel of detection roller is installed 7-39 independent roll pieces by interference fit, the roll piece is annular piece and is composed of piece body and pressure sensor, rectangular hole is machined on the circumferentially symmetrical position of piece body, pressure sensor is installed in rectangular hole, signal lead of pressure sensor is connected to current collecting device.

[0003] In the above technical solution, rectangular hole for installing pressure sensor is machined in roll ring, and pressure sensor is embedded in rectangular hole, and then electric signal converted by pressure sensor is used to assist detection personnel to complete detection, however, in the above technical solution, the mode that pressure sensor is loaded in roll ring will inevitably cause damage to roll ring structure, so that the working strength of roll ring is affected, and the whole roller cannot be adapted to high temperature and high pressure working environment, the application range is narrow, and the pressure sensor in the above technical solution can only identify the pressure transmitted to the outer circumferential surface of roll ring along radial direction, cannot detect the pressure of axial end surface of roll ring, and the detection effect is poor. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of hard alloy composite roll of roll ring locking force is monitored conveniently, which can be adapted to high temperature and high pressure working environment and can detect the pressure of axial end surface of roll ring.

[0005] To achieve the above object, the utility model discloses a kind of hard alloy composite roll of roll ring locking force is monitored conveniently, including roll shaft, the shaft shoulder of being arranged in one end of roll shaft axial direction and the hydraulic nut of being arranged in the other end of roll shaft axial direction and being connected with roll shaft screw thread, the roll shaft is located between the position of shaft shoulder and the hydraulic nut is equipped with roll ring and spacer ring that are arranged alternately in sequence, the shaft shoulder and the spacer ring are equipped with annular groove with opening towards the hydraulic nut, the annular groove is concentrically arranged with the roll shaft, pressure sensor is arranged in the annular groove, wiring slot is formed in the roll shaft along the axial direction, the end of the wiring slot in the direction away from the hydraulic nut penetrates the shaft shoulder, wiring slot is equipped with the wiring for being electrically connected with the pressure sensor and the plug that can block the end of wiring slot.

[0006] When the pressure sensor needs to be installed, first confirm whether the pressure sensor model, range, accuracy and interface size match the system, then place the pressure sensor in the annular groove and match the gap between the groove wall, then place the wire in the wire slot, then install the roller ring and spacer ring on the roller shaft layer by layer and electrically connect the pressure sensor in the spacer ring with the wire, finally lock the hydraulic nut and install the plug at the end of the wire slot.

[0007] The utility model discloses a pressure sensor is embedded in the shaft shoulder and spacer ring, and a wire slot is set up on the roller shaft, and then the wire is bound in the wire slot by cooperating with the roller ring and spacer ring and makes the wire and pressure sensor electric connection, so as to detect the pre-tightening force between the roller ring and spacer ring and the roller ring and shaft shoulder when preparing to need detection, thereby the transmission pressure on each piece of roller ring before each time on line of hard alloy composite roll after many rounds of use is accurately judged, the situation that the steel is stacked in the rolling process is avoided to make the hard alloy composite roll whole transverse crack, the utility model discloses have the advantage that the transmission pressure on each piece of roller ring before each time on line of hard alloy composite roll after many rounds of use is accurately judged.

[0008] The pressure sensor is made of ceramic fiber piezoelectric material, thereby meeting the high temperature resistance requirement.

[0009] Preferably, the wire includes a main lead wire arranged along the axial direction of the roller shaft and a branch lead wire connected to the main lead wire and corresponding to the pressure sensor.

[0010] The branch lead wire on all pressure sensors is electrically connected at the same time by arranging the main lead wire, that is, the pressure sensors corresponding to each roller ring are connected in parallel, and the wire on the roller shaft is convenient to wire.

[0011] Preferably, the annular groove is provided with a gap slot on the side close to the axial center of the roller shaft for the branch lead wire to enter the annular groove.

[0012] The gap slot provides space for the branch lead wire to enter the annular groove and electrically connect with the pressure sensor, preventing the branch lead wire from being extruded by the roller ring and causing circuit breakage.

[0013] Preferably, the wire slot is provided with a support block supported between the side walls of the wire slot.

[0014] The support block is arranged between the side walls of the wire slot, thereby preventing the roller shaft from being deformed due to the wire slot during use.

[0015] Preferably, the support block includes at least a pressing plate arranged at each end of the wire slot along the axial direction of the roller shaft, the width of the pressing plate is the same as the width of the groove wall of the wire slot, and the thickness of the pressing plate is the same as the depth of the wire slot.

[0016] By setting the width and height of the support block, the support block is embedded into the wiring groove, preventing interference between the support block and the roller ring or loosening between the support block and the groove wall of the wiring groove due to rotation of the roller ring during use of the roller ring.

[0017] As a preferred, the end of the pressing plate abutting against the main lead is provided with a groove with the same curvature as the outer surface of the main lead.

[0018] By using the support block placed in the wiring groove to press and limit the main lead, the main lead in the wiring groove is prevented from shaking with the rotation of the roller ring, and the electrical connecting piece between the main lead and the pressure sensor is prevented from reaching the fatigue limit.

[0019] As a preferred, a sealing ring is arranged between the shaft shoulder and the roller ring, between the spacer ring and the roller ring, and between the spacer ring and the hydraulic nut, the sealing ring is coaxial with the pressure sensor and has a diameter larger than the pressure sensor.

[0020] By arranging the sealing ring, external water is prevented from entering between the shaft shoulder and the roller ring, between the spacer ring and the roller ring, or between the spacer ring and the hydraulic nut, so that the external water causes the internal pressure sensor to short circuit and malfunction.

[0021] As a preferred, the main lead and the branch lead are wrapped with a high-temperature-resistant protective sleeve, and the end of the plug close to the main lead is provided with a heat insulation layer, thereby meeting the high-temperature resistance requirement of the pressure sensor.

[0022] The hard alloy composite roller can accurately judge the transmission pressure on each roller ring before each online after multiple rounds of use, avoid the situation that the roller ring rotates and causes the steel rolling process to be stacked, and cause the hard alloy composite roller to be transversely cracked, and the hard alloy composite roller has the advantages of ensuring the smooth progress of the production process and improving the service life of the composite roller. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the utility model.

[0024] Figure 2 It is a sectional view of the utility model.

[0025] Figure 3 It is an exploded structural schematic view of the utility model.

[0026] Figure 4 It is Figure 3 It is another angle of the exploded structural schematic view in the state.

[0027] In the figure: 11, roller shaft; 111, wire slot; 12, shaft shoulder; 13, roller ring; 14, spacer ring; 15, hydraulic nut; 151, pressing hole; 16, annular groove; 17, pressure sensor; 18, wire; 181, main wire; 182, branch wire; 19, pressing plate; 20, plug; 21, accommodation groove; 22, O-shaped graphite sealing ring. DETAILED DESCRIPTION

[0028] The utility model will be further described below according to the drawings and specific embodiments.

[0029] As shown in Figure 1 The embodiment discloses a hard alloy composite roller facilitating monitoring of roller ring locking force, which comprises a roller shaft 11, a shaft shoulder 12 arranged at one end of the roller shaft 11 in the axial direction and a hydraulic nut 15 arranged at the other end of the roller shaft 11 in the axial direction and threadedly connected with the roller shaft 11, the hydraulic nut 15 is provided with a pressing hole 151 in the radial direction, the roller shaft 11 is provided with a roller ring 13 and a spacer ring 14 arranged alternately in sequence at the position between the shaft shoulder 12 and the hydraulic nut 15, the shaft shoulder 12 and the spacer ring 14 are provided with an annular groove 16 with an opening facing the hydraulic nut 15, the annular groove 16 is coaxially arranged with the roller shaft 11, the annular groove 16 is provided with an accommodation groove 21 for the branch wire 182 to enter the annular groove 16 on the side close to the axis of the roller shaft 11, the annular groove 16 is provided with a pressure sensor 17, the roller shaft 11 is provided with a wire slot 111 in the axial direction, the wire slot 111 penetrates the shaft shoulder 12 at the end away from the hydraulic nut 15, the wire slot 111 is provided with a wire 18 electrically connected with the pressure sensor 17 and a plug 20 capable of plugging the end of the wire slot 111.

[0030] As shown in Figure 2 The wire 18 comprises a main wire 181 arranged in the axial direction of the roller shaft 11 and a branch wire 182 connected with the main wire 181 and corresponding to the pressure sensor 17 one by one, the outer side of the main wire 181 and the branch wire 182 is wrapped with a high-temperature-resistant protective sleeve, the high-temperature-resistant protective sleeve surrounds a ceramic fiber sleeve, one end of the plug 20 close to the main wire 181 is provided with a heat insulation layer, and the heat insulation layer is made of gel material.

[0031] As shown in Figure 3 , Figure 4As shown, the wiring groove 111 is provided with a support block supported between the side walls of the wiring groove 111, and the support block includes at least a pressing plate 19 provided at both ends of the wiring groove 111 along the axis direction of the roller shaft 11, and the pressing plate 19 is installed with an interference of 0.06-0.08mm between the inner wall of the wiring groove 111 after being cooled by liquid nitrogen, thereby avoiding the deformation of the roller shaft 11 due to the wiring groove 111 during use, and the main wire 181 can be fixed by the pressing plate 19, preventing the main wire 181 from shaking during the rotation of the roller ring 13, thereby affecting the service life of the electrical connection between the branch wire 182 and the pressure sensor 17.

[0032] The end of the pressing plate 19 abutting against the main wire 181 is provided with a groove with the same curvature as the outer surface of the main wire 181.

[0033] Sealing rings are provided between the shaft shoulder 12 and the roller ring 13, between the spacer ring 14 and the roller ring 13, and between the spacer ring 14 and the hydraulic nut 15, and the sealing ring is an O-shaped graphite sealing ring 22, thereby combining the high temperature and high pressure characteristics of the use environment of the composite roller, and the O-shaped graphite sealing ring 22 is coaxial with the pressure sensor 17 and has a diameter greater than the pressure sensor 17.

[0034] When the pressure sensor 17 needs to be installed, first confirm whether the model, range, accuracy and interface size of the pressure sensor 17 match the system, place the pressure sensor 17 in the annular groove 16 and cooperate with the gap between the groove wall, then place the wiring 18 in the wiring groove 111, install the roller ring 13 and the spacer ring 14 on the roller shaft 11 layer by layer and electrically connect the pressure sensor 17 in the spacer ring 14 with the wiring 18, and finally lock the hydraulic nut 15 and install the plug 20 at the end of the wiring groove 111.

[0035] After the composite roller is used, it needs to be checked again before it is put into operation, at this time, the plug 20 is opened, the external detection center is electrically connected with the main wire 181, and the pressure sensor 17 in the spacer ring 14 and the shaft shoulder 12 converts the force signal into an electrical signal and transmits it to the detection center, and the detection is completed.

Claims

1. A hard alloy composite roller for easy monitoring of roller ring locking force, comprising a roller shaft, a shoulder located at one axial end of the roller shaft, and a hydraulic nut located at the other axial end of the roller shaft and threadedly connected to the roller shaft, wherein roller rings and spacers are alternately arranged sequentially on the roller shaft between the shoulder and the hydraulic nut, characterized in that: The shoulder and the spacer ring are provided with annular grooves with openings facing the hydraulic nut. The annular grooves are concentrically arranged with the roller shaft. A pressure sensor is provided in the annular grooves. A wiring groove is provided on the roller shaft along the axial direction. The end of the wiring groove in the direction away from the hydraulic nut passes through the shoulder. The wiring groove is provided with wiring for electrical connection with the pressure sensor and a plug that can seal the end of the wiring groove.

2. The hard alloy composite roller for easy monitoring of roller ring locking force according to claim 1, characterized in that: The wiring includes a main conductor arranged along the axial direction of the roller shaft and branch conductors connected to the main conductor and corresponding one-to-one with the pressure sensors.

3. The hard alloy composite roller according to claim 2, characterized in that: The annular groove has a clearance groove on the side near the center of the roller shaft for allowing the branch wire to enter the annular groove.

4. A hard alloy composite roller for easy monitoring of roller ring locking force according to claim 2 or 3, characterized in that: The cable tray is provided with support blocks that are supported between the side walls of the cable tray.

5. A hard alloy composite roller for easy monitoring of roller ring locking force according to claim 4, characterized in that: The support block includes at least two pressure plates respectively disposed at both ends along the axis of the roller shaft in the wiring groove. The width of the pressure plate is the same as the width of the groove wall, and the thickness of the pressure plate is the same as the depth of the wiring groove.

6. A hard alloy composite roller for easy monitoring of roller ring locking force according to claim 5, characterized in that: The end of the pressure plate that abuts against the main guide line is provided with a groove that has the same curvature as the outer circle of the main guide line.

7. A hard alloy composite roller for easy monitoring of roller ring locking force according to claim 6, characterized in that: A sealing ring is provided between the shoulder and the roller ring, between the spacer ring and the roller ring, and between the spacer ring and the hydraulic nut. The sealing ring is coaxial with the pressure sensor and has a diameter larger than that of the pressure sensor.

8. A hard alloy composite roller for easy monitoring of roller ring locking force according to claim 2, characterized in that: The main conductor and branch conductors are wrapped with high-temperature resistant protective sleeves, and the end of the plug near the main conductor is provided with a heat insulation layer.

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