Chain type sensing mechanism

Abstract

The utility model provides a chain type sensing mechanism which comprises a mounting seat and a sensing assembly, and the sensing assembly comprises a trigger seat and a sensing element. The sensing element is arranged at the side position of the trigger seat and can capture an action signal of rotation of the trigger seat; one end of the trigger seat is connected with a chain, the other end of the trigger seat is hinged to the mounting seat, and an elastic part is arranged between the trigger seat and the mounting seat; a chain is connected to a triggering seat in a sensing assembly, and the characteristics that the chain is tightened after being stressed and loosened after being unloaded are utilized, so that the triggering seat in the sensing assembly can quickly respond to an external force change signal on the chain, and the external force change signal on the chain is converted into a rotating action signal to quickly trigger a sensing element; therefore, the change condition of the external force on the chain can be fed back in time through the triggering state of the sensing element, the time for confirming the stress condition of the chain is saved, and the feedback efficiency of the stress change of the chain is improved.

Description

Technical Field

[0001] The utility model relates to the field of metal surface treatment, in particular to a chain-type sensing mechanism. Background Art

[0002] After the steel plate is produced, it will be made into corresponding parts according to different usage requirements. However, before the steel plate is put into the production process, preparation time for processing the steel plate must be reserved. During this time, the steel plate will react with moisture and chemicals in the air, causing the surface material of the steel plate to peel off or rust. In order to remove the rust layer, the earliest method was to pickle the surface of the steel plate for rust removal, but this method is costly and polluting. Therefore, grinding equipment that removes rust by grinding the surface of the steel plate has appeared. This equipment installs a brush roller to physically grind the surface of the steel plate, which improves the rust removal effect of the steel plate. The equipment has a high rate and less pollution, so it is recognized by people. However, when grinding, the brush roller needs to contact with the surface of the steel plate. After long-term use, the grinding effect of the brush roller will decrease. Therefore, the brush roller needs to be placed on the roller changing operation vehicle and replaced with a new roller. When replacing the brush roller, the brush roller is usually clamped by the clamping mechanism on the rust remover, and then the new roller is placed on the supporting mechanism of the roller changing vehicle. After confirming that the brush roller is in place, a command is sent to the clamping mechanism to disengage the brush roller from both ends of the clamping mechanism. However, determining whether the brush roller is placed in place on the supporting mechanism has become a problem that troubles people.

[0003] For example, in the patent for a roller changing device with publication number CN216371699U, as in the patent Figure 1-Figure 12 As shown, the supporting seat for supporting the brush roller can move forward or backward on the guide rail along the length direction of the supporting seat under the drive of the roller changing drive assembly. However, since the supporting seat only has the function of supporting the brush roller, it is impossible to judge whether the brush roller is placed in place on the supporting seat. Therefore, when the brush roller falls on the supporting seat, it can only rely on visual observation or listening to the collision sound between the brush roller and the supporting mechanism to confirm that the brush roller and the supporting mechanism are roughly in contact with each other before starting the roller removal operation. Such an operation process is inefficient and may also damage the brush roller or the supporting mechanism. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a chain-type sensing mechanism, which connects the chain to a trigger seat in the sensing component and utilizes the characteristics of the chain being taut when under force and loose when unloaded, so that the trigger seat in the sensing component can quickly respond to the external force change signal on the chain, and convert the external force change signal on the chain into a rotational action signal, quickly triggering the sensing element, so that the external force change on the chain can be fed back in time through the trigger state of the sensing element, saving the time for confirming the force condition of the chain and improving the feedback efficiency of the chain force change.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A chain-type sensor mechanism comprises a mounting seat and a sensor assembly, wherein the sensor assembly comprises a trigger seat and a sensor element; the sensor element is arranged at a side position of the trigger seat and can capture an action signal of the trigger seat rotating; one end of the trigger seat is connected to a chain, and the other end is hinged to the mounting seat, and an elastic member is arranged between the trigger seat and the mounting seat;

[0007] The chain-type sensing mechanism has a ready state and a triggered state. When the chain-type sensing mechanism is in the ready state, the chain is tightened under the action of an external force, and drives the trigger seat to rotate toward the side away from the sensing element, causing the elastic piece to undergo elastic deformation; when the external force is removed from the chain, the chain relaxes instantaneously, at which time the elastic piece releases the deformation elastic force, causing the trigger seat to rotate in the opposite direction and trigger the sensing element, and the chain-type sensing mechanism switches to the triggered state.

[0008] Preferably, the chain is made of at least two metal rings connected in series; the chain made of metal rings in series has sufficient structural strength, and the chain switches from a taut state to a relaxed state relatively quickly, so that the trigger seat transmits the action signal to the sensor element more quickly.

[0009] Preferably, the elastic member is a tension spring, and both ends of the tension spring are respectively connected to the mounting seat and the trigger seat, so as to store tensile elastic force for the reverse rotation of the trigger seat.

[0010] Preferably, the elastic member is a torsion spring concentrically hinged with the trigger seat, and the torsion arms at both ends of the torsion spring are hooked on the mounting seat and the trigger seat respectively, thereby storing torsional elastic force for the reverse rotation of the trigger seat.

[0011] Preferably, after the trigger seat rotates in the opposite direction and triggers the sensor element, the trigger seat abuts against the bottom of the mounting seat to limit the trigger seat from further rotation, thereby preventing the trigger seat from excessively rotating and causing the elastic member to fall off between the mounting seat and the trigger seat.

[0012] Preferably, a fixed bracket is provided at the side of the mounting seat, and the sensor element is arranged above the bracket; thereby the sensor element remains fixed so as to receive the rotation action signal.

[0013] Preferably, a rotating plate is fixed to one end of the trigger seat close to the sensor element. When the chain-type sensor mechanism switches to the trigger state, the trigger seat drives the rotating plate to rotate in the opposite direction, and feeds back the action signal to the sensor element; the rotating plate increases the force arm of the trigger seat rotation, so that the sensor element can fully capture the rotation action signal of the trigger seat.

[0014] Preferably, the reverse rotation angle of the trigger seat and the rotating plate ranges from 3° to 15°; by setting the reverse rotation angle within a scientific and reasonable range, it is ensured that the trigger seat and the rotating plate can send signals to the sensor element quickly and accurately.

[0015] The principle of the utility model using the above technical solution is:

[0016] The utility model provides a chain-type sensing mechanism, which connects a chain to a trigger seat in a sensing component and utilizes the characteristics of the chain being tightened when stressed and loosened when stressed, so that the trigger seat in the sensing component can quickly respond to an external force change signal on the chain and convert the external force change signal on the chain into a rotation action signal, thereby quickly triggering the sensing element.

[0017] The beneficial effects of the utility model using the above technical solution are:

[0018] The chain-type sensing method enables timely feedback of changes in external force on the chain, saving time in confirming the chain's force conditions and improving the feedback efficiency of chain force changes.

[0019] 2. If the elastic component is connected to the trigger seat, when the trigger seat triggers the sensor element, the elastic component will produce transmission hysteresis due to the elastic contraction process, and the chain has the characteristics of being tightened when subjected to force and loosened when the force is unloaded, which is equivalent to avoiding the contraction process of the elastic component, and can trigger the sensor element faster, thereby improving feedback efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of the new type of support seat located in the roller changing channel on the side of the roller clamping mechanism;

[0021] Figure 2 A front view of the clamping roller mechanism aligning with the vacant supporting seat in the up-down direction;

[0022] Figure 3 This is a front view of the clamping roller mechanism driving the old brush roller to slide downward;

[0023] Figure 4 A schematic diagram of the clamping roller mechanism placing the old brush roller on the support seat;

[0024] Figure 5 is an enlarged view of the abutment between the telescopic member and the fixing mechanism;

[0025] Figure 6 It is an enlarged view of the old brush roller being disengaged from the fixing mechanism after the telescopic member abuts against the fixing mechanism;

[0026] Figure 7 Schematic diagram of the upward translation of the clamping roller mechanism after the old brush roller is removed;

[0027] Figure 8 It is a front view of the clamping roller mechanism moving down and aligning with the left and right sides of the new brush roller;

[0028] Fig. 9 A side view of the clamping roller mechanism aligning with the vacant support seat in the up-down direction;

[0029] Fig.10 It is a side view of the clamp roller mechanism moving down and aligning with the left and right sides of the new brush roller;

[0030] Fig.11 It is an enlarged view of the cooperation between the front and rear guides, the left and right guides and the clamping roller mechanism;

[0031] Fig.12 It is a side view of the clamping roller mechanism driving the old brush roller to slide downward;

[0032] Fig.13 It is an enlarged view of the contact between the guide support plate and the elastic swing wheel;

[0033] Fig.14 It is an enlarged view of the elastic swing wheel abutting against the guide block;

[0034] Fig.15 It is an enlarged view of the abutment between the limit block and the top column;

[0035] Fig.16 It is a structural schematic diagram of the elastic reset wheel;

[0036] Fig.17 is an enlarged schematic diagram of the positioning structure;

[0037] Fig.18 It is an enlarged schematic diagram of the roller telescopic member on the base;

[0038] Fig.19 It is a schematic diagram of the structure on the back of the base;

[0039] Fig. 20 is an axonometric view of the elastic support mechanism;

[0040] Fig.21 is a cross-sectional view of the elastic support mechanism;

[0041] Fig. 22 It is a structural schematic diagram of the fixing mechanism;

[0042] Fig.23 It is an axonometric view of the elastic swing wheel;

[0043] Fig.24 It is an axonometric view of the elastic swing wheel at another angle;

[0044] Fig.25 is a schematic diagram of the swing angle of the elastic swing wheel;

[0045] Fig.26 It is a structural schematic diagram of the front side of the supporting seat;

[0046] Fig. 27 It is a structural schematic diagram of the back side of the supporting seat;

[0047] Fig.28 Schematic diagram of the positions of the roller changing channel and the steel plate grinding and brushing area inside the frame in the embodiment;

[0048] The reference numerals of the drawings are: 1-clamping roller mechanism, 2-travel mechanism, 3-supporting mechanism, 4-brush roller, 101-sliding mechanism, 102-fixing mechanism, 103-guide block, 104-guide ramp, 105-guide support plate, 106-limiting block, 107-guide column, 21-travel chassis, 22-elastic support mechanism, 23-switch assembly, 24-column body, 31-supporting seat, 32-base, 3 3-elastic swing wheel, 34-elastic reset wheel, 35-guide seat, 36-top column, 211-positioning telescopic member, 212-positioning telescopic rod, 221-hinged seat, 222-elastic member, 223-housing, 224-oil nozzle, 225-earring, 226-nut, 227-support rod, 228-support block, 229-bushing, 231-chain, 232-trigger seat, 233-elastic member, 23 4-mounting seat, 235-bracket, 236-rotating piece, 311-tube protection seat, 312-telescopic member, 313-telescopic rod, 314-fixed block, 315-connecting sleeve, 316-slide, 317-stroke limiting seat, 321-guide rail, 322-roller telescopic member, 323-sliding rod, 331-guide wheel, 332-swinging seat, 333-first pin shaft, 334-second pin shaft, 335-cross Plate, 336-mounting plate, 337-elastic telescopic member, 338-base, 339-connecting shaft, 341-rotating wheel, 342-third pin shaft, 343-buffer seat, 345-elastic buffer member, 346-buffer base, 351-Y-shaped groove, 4a-old brush roller, 4b-new brush roller, a-slide rail, b-swing angle, c-sensing element, d-positioning seat, e-detection element, s-steel plate grinding and brushing area. DETAILED DESCRIPTION

[0049] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0050] The utility model provides specific implementation methods as follows:

[0051] like Figure 1-28As shown, the present embodiment provides a chain-type sensing mechanism, which utilizes external force to pre-tighten the chain, and can relax the chain according to the change of the external force, thereby triggering the chain sensing mechanism. The external force includes but is not limited to gravity, lateral force, tension, etc. In the present embodiment, in order to demonstrate its use effect, the mechanism is arranged on the brush roller replacement equipment for explanation. When the upper brush roller needs to be replaced, gravity changes will inevitably occur on the brush roller replacement equipment. Therefore, the chain-type sensing mechanism in the present embodiment can be relied upon to quickly transmit signals to improve the roller replacement efficiency.

[0052] like Fig. 22 As shown, the chain-type sensing mechanism includes a mounting seat 234 and a sensing assembly, and the sensing assembly includes a trigger seat 232 and a sensing element c; the sensing element c is arranged at a side position of the trigger seat 232 and supported by a bracket 235, so that the sensing element c remains fixed; the sensing element c can capture the action signal of the rotation of the trigger seat 232; one end of the trigger seat 232 is connected to a chain 231, and the other end of the chain 231 is hinged on the mounting seat 234. The chain 231 is made of at least two metal rings connected in series, which can not only ensure its structural strength, but also add or subtract metal rings according to the length between the connecting parts of the mechanism. At the same time, the chain 231 has the characteristics of being tightened when subjected to force and being loosened when unloaded. Compared with elastic members, the force on the trigger seat 232 can be changed more quickly, thereby achieving the purpose of quickly transmitting signals.

[0053] Specifically, an elastic member 233 is provided between the trigger seat 232 and the mounting seat 234; the function of the elastic member 233 is to ensure that the trigger seat 232 always maintains a tendency to rotate in the opposite direction after the chain 231 is subjected to an external force. The elastic member 233 can be a tension spring, and the two ends of the tension spring are respectively connected to the mounting seat 234 and the trigger seat 232. If it is to save space but to play the same role as the tension spring, the elastic member 233 can also be a torsion spring concentrically hinged with the trigger seat 232, and the torsion arms at the head and tail ends of the torsion spring are respectively hooked on the mounting seat 234 and the trigger seat 232, and the same effect can be achieved through torsional elastic deformation.

[0054] Furthermore, the chain-type sensor mechanism has a ready state and a triggered state. When the chain-type sensor mechanism is in the ready state, the chain 231 is tightened under the action of an external force, and drives the trigger seat 232 to rotate toward the side away from the sensor element c, so that the elastic member 233 undergoes elastic deformation; when the external force is removed from the chain 231, since the chain 231 is composed of metal rings connected in series, the chain 231 will be instantly relaxed when the external force is lost. At this time, the elastic member 233 releases the deformation elastic force, causing the trigger seat 232 to rotate in the opposite direction; in order to be better sensed Component c captures the action signal, and a rotating piece 236 is fixed to one end of the trigger seat 232 close to the sensor element c. When the chain-type sensor mechanism switches to the trigger state, the trigger seat 232 drives the rotating piece 236 to rotate in the opposite direction. In order to ensure that the trigger process is timely and rapid, it is necessary to limit the reverse rotation angle. Therefore, in this embodiment, the reverse rotation angle of the trigger seat 232 and the rotating piece 236 is 3-15 degrees. When the action signal is fed back to the sensor element c through the rotating piece 236, the sensor element c will be triggered, and the chain-type sensor mechanism switches to the trigger state.

[0055] Furthermore, in order to prevent the trigger seat 232 from rotating excessively and causing the elastic member 233 to fall off, it is necessary to limit the range of its reverse rotation. Therefore, the mounting seat 234 has both the function of a mounting carrier and the function of limiting the excessive rotation of the trigger seat 232. When the trigger seat 232 rotates in the opposite direction and triggers the sensor element c, the trigger seat 232 abuts against the bottom of the mounting seat 234, limiting the trigger seat 232 from continuing to rotate.

[0056] When the chain sensor mechanism is applied to the roller changing device, the instantaneous change of the gravity of the brush roller 4 placed on the supporting mechanism 3 can be used to make the entire roller changing process more accurate and efficient.

[0057] Specifically, if Figure 18-27As shown, the roller changing device includes a traveling mechanism 2 and a supporting mechanism 3. The supporting mechanism 3 is arranged on the traveling mechanism 2, and the supporting mechanism 3 can support the brush roller 4; the supporting mechanism 3 includes a supporting seat 31 and a base 32. The supporting seat 31 is arranged above the base 32, and the supporting seat 31 can support the brush roller 4. In order to enable the supporting seat 31 to smoothly adjust its position when supporting the brush roller 4 so that it is located at the center of the base 32, a guide groove 316 is provided below the supporting seat 31, and a guide rail 321 extending in the left-right direction is provided on the base 32. The guide groove 316 cooperates with the guide rail 321, so that the supporting seat 31 can slide in the left-right direction on the base 32. The support seat 31 can slide left and right, and can slide relative to the base 32 in the left and right directions. Under the premise that the support seat 31 can slide left and right, in order to improve the adjustment speed, a telescopic roller member 322 is provided on the base 32. The telescopic roller member 322 is usually a cylinder. A sliding rod 323 is provided inside the telescopic roller member 322. The sliding rod 323 can be extended or retracted in the left and right directions. The telescopic roller member 322 is connected to the T-shaped connecting sleeve 315 provided below the support seat 31 through the T-shaped head of the sliding rod 313, so that the position of the support seat 31 is controlled by the telescopic roller member 323. A stroke limiting seat 317 is provided at the corresponding position below the support seat 31. When the telescopic roller member 322 is extended, the support seat 31 The guide groove 316 below the seat 31 cooperates with the guide rail 321 on the base 32 to drive the supporting seat 31 to slide in the left and right directions. The cylinder bottom of the roller telescopic member 322 abuts against the stroke limiting seat 317 to limit the supporting seat 31; the extended roller telescopic member 322 is in a no-load exhaust state and no longer controls the sliding process of the supporting seat 31. This is because when the old brush roller 4a falls onto the supporting seat 31, the telescopic member 312 contacts the fixing mechanism and regrets to drive the supporting seat 31 to disengage to the right. When disengaging, if the roller telescopic member 323 still maintains a load control state, it will inevitably generate excess interference force on the supporting seat 31, which will have a negative impact on the roller unloading process.

[0058] like Fig.12 As shown, the supporting seat 31 on the front supporting mechanism 3 is empty, and a new brush roller 4b is installed on the supporting seat 31 on the rear supporting mechanism 3; a telescopic member 312 is provided at the left end of the empty supporting seat 31, and two telescopic members 312 are symmetrically arranged at the left end of the supporting seat 31, and the telescopic members 312 can be extended or retracted in the left and right directions.

[0059] like Fig. 27 As shown, in order to ensure that the telescopic member 312 can remain stable and not shake when extended, a pipe protection seat 311 is provided below the telescopic member 312. The pipe protection seat 311 is a hollow structure, and a hydraulic oil pipe connected to the telescopic member 312 is passed through the inside. A support plate is installed on the pipe protection seat 312, and the lower side of the extended end of the telescopic member 312 is fixed on the support plate, so that the telescopic member 312 can be stably supported when extended.

[0060] Specifically, the replacement of the brush roller 4 is carried out by the clamping roller mechanism 1 as the active part, and the clamping roller mechanism 1 is controlled by the driving element and can slide and translate in the up, down, left and right directions; the driving element (not shown) is usually a controlled hydraulic component, and its working principle can refer to the specific structure of the lifting motor 135, the angler 136, the connecting shaft 137 and the lifting mechanism 138 in the patent announcement number CN211103286, which will not be repeated here; the clamping roller mechanism 1 includes a fixing mechanism 102 and a sliding mechanism 101, and an axially fixed and circumferentially rotating old brush roller 4a is provided between the fixing mechanism 102 and the sliding mechanism 101, and the axial direction of the old brush roller 4a is the left and right direction; the sliding mechanism 101 can slide in the left and right direction to install or disengage the old brush roller 4a on the clamping roller mechanism 1.

[0061] Further, the fixing mechanism 102 and the sliding mechanism 101 are equivalent to the bearing seat of the old brush roller 4a. The left end of the bearing seat is a non-moving fixing mechanism 102, and a motor is connected to the left end of the fixing mechanism 102. The motor drives the components in the fixing mechanism so that the old brush roller 4a can rotate circumferentially, thereby brushing the surface of the steel plate; the sliding mechanism 101 at the right end of the bearing seat is a sliding bearing seat controlled by an air cylinder or an oil cylinder. The sliding position of the sliding bearing seat can be controlled by controlling the extension and contraction of the air cylinder or the oil cylinder. The left and right sliding of the sliding mechanism 101 is controlled. The sliding mechanism 101 is controlled by a control unit (not shown), for example, the control unit can be a master controller; only when the control unit sends an instruction, the oil cylinder or air cylinder in the sliding mechanism 101 will pull the bearing seat to slide, when the sliding mechanism 101 slides to the right end of the old brush roller 4a, the left and right ends of the old brush roller 4a are clamped, and when the sliding mechanism 101 slides to the right, the right end of the old brush roller 4a loses the support point for circumferential rotation, thereby causing the old brush roller 4a to escape from the clamping roller mechanism 1.

[0062] like Figure 17-21 As shown, the walking mechanism 2 remains fixed in the vertical direction and can move freely relative to the ground in the front and rear directions. The walking mechanism 2 includes a frame-shaped walking chassis 21, and pulleys are provided on the left and right sides of the walking chassis 21. A motor is provided at the rear of the walking chassis 21. The pulley is driven by the motor and the connecting mechanism to drive the walking mechanism 2 to slide on the slide rail a. In order to keep the walking mechanism 2 of the new supporting seat unchanged in direction during travel, a slide rail a is also provided on the ground. The slide rail a separates the new supporting seat from the ground, so that the walking mechanism 2 can move forward more smoothly on the slide rail a without worrying about the problem of directional deflection of the new supporting seat.

[0063] like Fig.17As shown, in order to keep the walking chassis 21 fixed during the unloading roller guiding and clamping roller guiding, a positioning structure is provided between the walking mechanism 2 and the ground, and the positioning structure includes a positioning telescopic member 211 and a positioning seat d. The positioning telescopic member 211 is arranged on the walking chassis 21 of the walking mechanism 2 and can be extended and retracted up and down. The positioning telescopic member 211 is usually a cylinder, and a positioning telescopic rod 212 is arranged inside it. The head of the positioning telescopic rod 212 is V-shaped. The positioning seat d is fixed on the ground and a V-shaped groove is provided on the top. In the unloading roller guiding and clamping roller guiding steps, when the walking mechanism 2 needs to stop, the head of the positioning telescopic rod 212 is stuck in the V-shaped groove to keep the walking mechanism 2 fixed front and back.

[0064] like Figure 18-27 As shown, in order to prevent the brush roller 4 from colliding up and down or jumping relative to the supporting seat 31 when it is placed on the supporting seat 31, an elastic supporting mechanism 22 is provided between the upper end of the traveling mechanism 2 and the lower end of the supporting mechanism 3, and there are at least two elastic supporting mechanisms 22 on the roller seat, which are symmetrically arranged in the left-right direction at the side positions between the traveling mechanism 2 and the supporting mechanism 3, so that each position of the supporting mechanism 3 can achieve a buffering effect.

[0065] The upper and lower ends of the elastic support mechanism 22 are respectively hinged to the supporting mechanism 3 and the traveling mechanism 2; and the elastic support mechanism 22 is in a compressed state, and the brush roller 4 transmits the gravity to the elastic support mechanism 22, thereby generating an upward supporting elastic force on the supporting mechanism 3.

[0066] Specifically, the base 32 and the walking mechanism 2 are both provided with an articulated seat 221, the elastic support mechanism 22 includes a plurality of elastic support cylinders, the elastic support cylinders include earrings 225 articulated on two articulated seats 221, the earrings 325 below the base 32 are locked by nuts 226 and a cylindrical shell 223, a support block 228 is fixed inside the shell 223, the support block 228 and the earrings above the walking chassis 21 are connected by a support rod 227, an elastic member 222 is sleeved on the outer wall of the support rod 227, in order to be able to greatly absorb the impact load generated when the old brush roller 4a is pressed down, the elastic member 222 is usually a plurality of and The disc springs are stacked and close together, and the gravity of the supporting mechanism 3 makes the disc springs tightly stuck between the support block 228 and the strut 227, so that the support block 228 generates an upward pre-tightening force, forming a stable supporting effect on the support chassis 32 and the supporting seat 31; when the old brush roller 4a is placed on the supporting seat 31 in the front, the upper and lower ends of the elastic support cylinder rotate, and at the same time, the pressure transmitted by the old brush roller 4a causes the disc spring to undergo elastic deformation, forming a buffering and shock-absorbing effect in the vertical direction and the axial direction of the old brush roller 4a, thereby reducing the impact of the old brush roller 4a on the supporting mechanism 3, ensuring that the old brush roller 4a will not jump when it is removed.

[0067] Furthermore, when the old brush roller 4a is placed on the supporting seat 31 in the front, the old brush roller 4a cannot be absolutely placed in the center position of the supporting seat 31, so the supporting mechanism 3 will inevitably produce a slight deflection. If the base 32 and the walking chassis 21 are rigidly connected, that is, welded or threaded, the connection will inevitably be affected by the stress generated by the deflection. After repeated connections, the connection may crack or break. Therefore, the upper and lower ends of the elastic support cylinder are set to be hinged connections, and the hinged design can also form a accommodating and receiving effect on the falling old brush roller 4a, so that the entire supporting mechanism 3 can produce a floating support effect on the old brush roller 4a while protecting the supporting mechanism 3 and the walking mechanism 2 to the greatest extent.

[0068] Going further, Fig.21 As shown, in order to prevent the contact end faces of the support block 228 and the disc spring from wearing out due to frequent contact, a bushing 229 is provided between the support block 228 and the disc spring. When the disc spring and the support block 228 are in contact, the bushing 229 can be a copper sleeve with a relatively low hardness, which can be used as a buffer to prevent the disc spring from directly contacting the support block 228. The worn bushing 229 can also be directly replaced, which avoids the wear problem and saves maintenance costs. In order to minimize the wear caused by the contact between the parts, an oil nozzle 224 is provided on the outer shell 223. When maintaining the elastic support cylinder, lubricating oil can be added to the oil nozzle 224 to minimize the wear of the parts of the elastic support cylinder when it is extended or retracted, thereby making the working process of the elastic support cylinder smoother.

[0069] like Figure 12-16 As shown, in order to avoid the shaking problem of the supporting mechanism 3 due to the excessive deflection angle, two deflection support mechanisms are symmetrically arranged on the left and right sides above the walking mechanism 2, and the deflection support mechanism includes a cylindrical body 24 and an elastic reset wheel 34, and the elastic reset wheel 34 is connected to the base 32 at the lower end of the supporting mechanism 3; in the outer wall surface of the cylindrical body 24 in the front, back, left and right directions, the left or right wall surface is in an empty state, and on the wall surfaces of the other three directions of the cylindrical body 24, there are corresponding elastic reset wheels 34 against it; when the guide inclined surface 104 is squeezed and matched with the elastic swing wheel 33, the base 32 generates a movement trend in the front and back directions, and drives the elastic reset wheel 34 to generate elastic deformation, which is equivalent to the elastic reset wheel 34 absorbing the excess deflection force and then forming an elastic support effect on the base 32, so that the supporting seat 31 and the brush roller 4 return to a horizontal state again, avoiding the brush roller 4 from tipping over on the supporting mechanism 3.

[0070] Further, if Fig.16As shown, the elastic reset wheel 34 includes a buffer base 346 installed under the base 32, and a buffer assembly is connected to the buffer base 346 by screws. The buffer assembly includes a buffer seat 343 and a rotating wheel 341. The rotating wheel 341 is hinged on the buffer seat 343 by a third pin shaft 342, and an elastic buffer member 345 is provided between the buffer seat 343 and the buffer base 346. When a large external force acts on the rotating wheel 341, in order to enable the elastic buffer member 345 to provide sufficient resilience, the elastic buffer member 345 is usually a mold spring or disc spring of a metal material. In addition to providing reverse supporting elastic force for the base 32, the elastic reset wheel 34 can also use the good resilience of the mold spring or disc spring to generate elastic force on the base 32 in the front, rear, left and right directions, so that the base 32 remains fixed in the front, rear, left and right directions, so as to facilitate the installation of the base 31 and the elastic support mechanism 22.

[0071] like Fig.11 As shown, the guiding effect of the clamping roller mechanism 1 and the supporting mechanism 3 in the left and right directions is achieved in this way. The left and right guiding members are a guide seat 35 with a Y-shaped groove 351. The opening of the Y-shaped groove 351 is connected with the top of the guide seat 35, thereby forming two symmetrical inclined surfaces on the guide seat 35. The clamping roller mechanism 1 is provided with a guide column 104 that can rotate circumferentially at the corresponding position. When the clamping roller mechanism 1 carries the old brush roller 4a down to the supporting seat 31, the guide column 104 contacts and rotates with the inclined surface, and the extrusion force causes the supporting seat 31 to slide in the left and right directions. In order to make the sliding process smoother, a guide groove 316 is provided below the supporting seat 31, and a guide rail 321 extending in the left and right directions is provided on the base 32. When the guide column 104 contacts and rotates with the inclined surface, the elastic reset wheel 34 is elastically deformed, thereby guiding the guide column 104 to the bottom of the Y-shaped groove 351, so that the old brush roller 4a on the clamping roller mechanism 1 is aligned with the supporting seat 31 left and right.

[0072] like Fig.13 As shown, in order to enable the clamping roller mechanism 1 to continue to slide downward stably after being aligned with the supporting seat 31, guide support plates 105 are symmetrically arranged on the front and rear sides of the clamping roller mechanism 1, and an elastic swing wheel 33 is correspondingly arranged on the base 32 near the guide support plate 105. When the clamping roller mechanism 1 is aligned with the supporting seat 31, the guide support plate 105 contacts the elastic swing wheel 33, providing a stable sliding support point for the clamping roller mechanism 1 to move downward, so that the clamping roller mechanism 1 can move smoothly to the specified position.

[0073] like Fig.11As shown, due to the error of the equipment itself, this alignment is not absolute, so it is also necessary for the guide component to cooperate with the clamping roller mechanism 1 for guidance. The supporting seat 31 is driven by the roller telescopic member 322 to maintain alignment with the old brush roller 4a on the clamping roller mechanism 1 in the front-to-back direction, wherein the front and rear guide members are elastic swing wheels 33, and the elastic swing wheel 33 can be elastically deflected front and back relative to the supporting seat 31; the clamping roller mechanism 1 is provided with a guide block 103 at the corresponding position, and the guide block 103 is provided with a guide slope 104. When the clamping roller mechanism 1 carries the old brush roller 4a down to the supporting seat 31, the guide slope 104 is squeezed and matched with the elastic swing wheel 33, so that the elastic swing wheel 33 rotates and elastically deflects, thereby aligning the old brush roller 4a on the clamping roller mechanism 1 with the supporting seat 31 front and back.

[0074] Further, if Figure 23-25 As shown, when a conventional guide wheel is used for guiding, it relies on the elastic deformation of the material of the guide wheel itself to perform the guiding function. However, when the guide wheel is subjected to a large extrusion load, the material of the guide wheel itself may be broken. Therefore, in this embodiment, the guiding of the clamping roller mechanism 1 is mainly achieved by an elastic swing wheel 33. The elastic swing wheel 33 includes a rotating base 338 fixed on the base 32, and a swing assembly is hinged on the rotating base 338 through a second pin shaft 334. The swing assembly includes a swing seat 332, and a rotatable guide wheel 331 is hinged on the swing seat 332 through a first pin shaft 333. The guide wheel 331 is usually made of a rubber material with good resilience. In order to enable the guide wheel 331 to rotate and generate elastic compression when it is squeezed by the fixing mechanism 1, A connecting shaft 339 is fixed on the swing seat 332, and the mounting plate 336 and the connecting shaft 339 are connected by bolts. An elastic telescopic member 337 in a compressed state is sleeved on the outer side of the bolt. The elastic telescopic member 337 is usually a mold spring or a disc spring to cope with the larger load generated by the extrusion force; a cross plate 335 is provided on the base 338. When the guide wheel 331 and the swing seat 332 are not squeezed by the guide block 103, the swing seat 332 will abut against the cross plate 335. When the guide wheel 331 and the swing seat 332 are squeezed by the guide block 103, the swing seat 332 and the guide wheel 331 elastically swing relative to the base 338. The guide wheel 331 and the swing seat 332 have a swing angle b relative to the base 338, and the swing angle b is usually 3°-10°.

[0075] like Fig.15As shown, in order to make the clamping roller mechanism 1 move down to align with the left and right sides of the supporting seat 31 and no longer move downward, so as to avoid the situation where the clamping roller mechanism 1 and the supporting seat 31 are misaligned up and down when changing the rollers, a limiting structure is provided between the base 3 and the clamping roller mechanism 1, and the limiting structure includes a limiting block 106 and a top column 36. The limiting block 106 is located on the clamping roller mechanism 1, and the top column 36 is located on the base 32. When the clamping roller mechanism 1 controls the old brush roller 4a to be aligned with the supporting seat 31 and is placed on the supporting seat 31, the limiting block 106 and the top column 36 abut against each other, and the end surface area of ​​the block-shaped limiting block 106 that contacts the top column 36 is larger than the area of ​​the upper end surface of the top column 36, so that the limiting block 106 and the top column 36 can fully contact each other to prevent the clamping roller mechanism 1 from continuing to move downward.

[0076] like Figure 18-27 As shown, the supporting mechanism 3 remains unloaded, and the supporting elastic force generated by the elastic supporting mechanism 22 keeps the supporting mechanism 3 horizontal; when the brush roller 4 is placed on the supporting mechanism 3, the elastic supporting mechanism 22 is further compressed, and the upper and lower ends of the elastic supporting mechanism 22 rotate, and drive the supporting mechanism 3 to deflect slightly relative to the horizontal plane; when the brush roller 4 is removed from the supporting mechanism 3, the elastic supporting mechanism 22 is reset to the initial compressed state, and the supporting elastic force is generated again, so that the supporting mechanism 3 is reset to the horizontal.

[0077] like Figure 18-22As shown, the tensioned and relaxed states of the chain 321 are switched instantly under the premise of changes in gravity. By utilizing this characteristic, it can have a control function similar to that of a switch device; therefore, the chain sensor mechanism is symmetrically arranged between the supporting mechanism 3 and the walking chassis 21 by means of threaded connection, and plays a role when the rollers are unloaded; that is, the elastic supporting mechanism 22 is used to generate an upward supporting elastic force to tighten the chain 231, thereby putting the chain sensor mechanism in a ready state; at this time, the floating support between the base 32 on the supporting mechanism 3 and the walking chassis 21 is more stable due to the tightening of the chain 231; when unloading the rollers, when the old brush roller 4a is placed on the supporting seat 31 and in place, the disc spring in the elastic supporting mechanism 22 is compressed, and the supporting elastic force previously acting on the chain 231 will be offset by the gravity of the old brush roller 4a, and then the gravity of the old brush roller 4a continues to act On the base 32, at the same time, the chain 231 formed by the metal rings in series will instantly switch to relaxation due to the change in the force direction. At this time, the elastic member 233 will undergo elastic deformation, and the elastic force stored in the previous ready state will be released, driving the trigger seat 232 to rotate downward, and sending the action signal to the control unit through the sensor element c. The control unit issues an instruction to make the sliding mechanism 101 slide to the right, so that the right end of the old brush roller 4a disengages from the sliding mechanism 101. At this time, the chain sensing mechanism plays the role of controlling the roller disengagement switch of the clamping roller mechanism 1. The chain sensing mechanism can be understood as the switch component 23 for disengaging the clamping roller mechanism 1; the chain sensing mechanism can make the old brush roller 4a be placed in place, and the information of the placement can be transmitted to the sensor element c through the chain 231 that is sensitive to changes after being subjected to force, thereby achieving the effect of the old brush roller 4a being disengaged when it is in place on the supporting seat 31.

[0078] When installing the roller, the state of the chain 231 will not change until the new brush roller 4b is clamped and separated from the supporting seat 31. Therefore, although the supporting mechanism 3 for placing the new brush roller 4b at the rear is configured the same as the supporting mechanism 3 at the front, this is only for consideration of the commonality between the supporting mechanisms 3. The chain 231 and the switch assembly 23 therein do not participate in the control of the sliding mechanism 101 again during the roller installation process.

[0079] Furthermore, in the utility model, the unused new brush roller 4b is placed in advance on the supporting seat 31 at the rear; the specifications and sizes of the old brush roller 4a and the new brush roller 4b are the same. When the two are placed on the supporting seat 31, both ends of the brush rollers will limit the movement trend in the left and right directions with the corresponding fixed blocks 314 arranged on the supporting seat 31. The only difference is that the old brush roller 4a is the old roller used on the steel plate grinding brush area s, and the mechanisms for receiving the old brush roller 4a and the new brush roller 4b are the vacant supporting seat 31 at the front and the rear supporting seat 31 respectively. A telescopic member 312 is provided on the left side of the vacant supporting seat 31. The telescopic member 312 is usually an oil cylinder. A telescopic rod 313 is arranged in the telescopic member 312. The telescopic rod 313 It can be extended or retracted in the left and right directions. The telescopic rod 313 is an auxiliary component for the left end of the old brush roller 4a to disengage the fixing mechanism 102; on the supporting seat 31 on the rear side of which the new brush roller 4b is installed, the telescopic member 313 does not participate in the roller installation process, so the rear supporting seat 31 may not be installed with the telescopic member 31, but in this embodiment, in order to ensure the versatility of the supporting mechanism 2 in the new supporting seat, and to facilitate the maintenance and management of the supporting mechanism 2, the rear supporting seat 31 and the vacant supporting seat 31 on the front side have the same configuration, that is, in this embodiment, the rear supporting seat 31 and the vacant supporting seat 31 on the front side can both receive the old brush roller 4a and the new brush roller 4b, and can work normally even if the positions are swapped.

[0080] Further, if Figure 1-10 As shown, the sliding mechanism 101 in the clamping roller mechanism 1 is controlled by a control unit (not shown). When the old brush roller 4a is placed on the supporting seat 31, the control unit sends a command to the sliding mechanism 101 to slide to the right and disengage the right end of the old brush roller 4a. At this time, the left end of the old brush roller 4a is still connected to the fixing mechanism 102. The reason why a sliding mechanism 101 is not set at the left end of the clamping roller mechanism 1 is that the fixing mechanism 102 at the left end is connected to a motor, and the motor drives the old brush roller 4a to rotate to grind the steel plate. Since the existence of the motor has occupied the axial space of the clamping roller mechanism 1, setting the left end of the clamping roller mechanism 1 as a slidable mechanism will make the axial structure of the clamping roller mechanism 1 bloated, and Repeated sliding will also cause the motor and the old brush roller 4a to be frequently connected and disconnected. In order to ensure that the connection between the motor and the old brush roller 4a is well matched, a positioning mechanism must be added again. The processing difficulty, design difficulty and manufacturing cost will all increase sharply. Therefore, in order to make the left end of the old brush roller 4a disengaged, a telescopic member 312 is symmetrically arranged at the left end of the supporting seat 31, and the telescopic rod 313 in the telescopic member 312 is extended to abut against the vertical plate at the end of the fixing mechanism 101. At this time, the clamping roller mechanism 1 is in a stationary state. After being subjected to the abutment force of the telescopic rod 313, a reaction force will be generated on the supporting seat 31, and the supporting seat 31 will slide to the right along the guide rail 321 to disengage the left end of the old brush roller 4a.

[0081] like Figure 7-8As shown, the roller clamping process utilizes the driving element to control the roller clamping mechanism 1 to retract upward, and to move the walking mechanism 2 forward, and then to control the roller clamping mechanism 1 to move downward to the left and right sides of the new brush roller 4b, and then to control the sliding mechanism 101 to retract to the left, so that the right end and the left end of the new brush roller 4b are respectively clamped into the sliding mechanism 101 and the fixing mechanism 102.

[0082] Furthermore, the positioning telescopic member 211 is controlled by a receiving unit (not shown), which may be a sub-controller. When the walking mechanism 2 needs to slide to load the roller, the telescopic rod 313 of the telescopic member 312 on the supporting seat 31 with the old brush roller 4a installed in front is retracted. A detection element e is provided on the protective tube seat 311 at the side of the telescopic rod 313. By utilizing the contact and cooperation between the telescopic rod 313 and the detection element e, the telescopic rod 313 can have the function of controlling the state of the walking mechanism 2. When the telescopic rod 313 is retracted, the rod head triggers the detection element e, and the detection element e sends an action signal to the receiving unit, causing the positioning telescopic rod 212 to retract and disengage from the positioning seat d, thereby causing the walking mechanism 2 to move forward.

Claims

1. A chain-type sensing mechanism, characterized in that: The invention comprises a mounting seat (234) and a sensor assembly, wherein the sensor assembly comprises a trigger seat (232) and a sensor element (c); the sensor element (c) is arranged at a side position of the trigger seat (232) and can capture an action signal of the trigger seat (232) rotating; one end of the trigger seat (232) is connected to a chain (231), and the other end is hinged on the mounting seat (234); and an elastic member (233) is provided between the trigger seat (232) and the mounting seat (234); The chain-type sensing mechanism has a ready state and a triggered state. When the chain-type sensing mechanism is in the ready state, the chain (231) is tightened under the action of an external force and drives the trigger seat (232) to rotate toward a side away from the sensing element (c), causing the elastic member (233) to undergo elastic deformation. When the external force is removed from the chain (231), the chain (231) relaxes instantaneously, at which time the elastic member (233) releases the deformation elastic force, causing the trigger seat (232) to rotate in the opposite direction and trigger the sensing element (c), and the chain-type sensing mechanism switches to the triggered state.

2. A chain-type sensing mechanism according to claim 1, characterized in that: The chain (231) is made of at least two metal rings connected in series.

3. A chain-type sensing mechanism according to claim 1, characterized in that: The elastic member (233) is a tension spring, and two ends of the tension spring are respectively connected to the mounting seat (234) and the trigger seat (232).

4. A chain-type sensing mechanism according to claim 1, characterized in that: The elastic member (233) is a torsion spring that is coaxially hinged with the trigger seat (232), and the torsion arms at both ends of the torsion spring are respectively hooked on the mounting seat (234) and the trigger seat (232).

5. A chain-type sensing mechanism according to claim 1, characterized in that: After the trigger seat (232) rotates in the opposite direction and triggers the sensor element (c), the trigger seat (232) abuts against the bottom of the mounting seat (234), thereby limiting the trigger seat (232) from continuing to rotate.

6. A chain-type sensing mechanism according to claim 1, characterized in that: A fixed bracket (235) is provided at a side position of the mounting seat (234), and the sensor element (c) is arranged above the bracket (235).

7. A chain-type sensing mechanism according to claim 1, characterized in that: A rotating piece (236) is fixed to one end of the trigger seat (232) close to the sensor element (c). When the chain-type sensor mechanism switches to the trigger state, the trigger seat (232) drives the rotating piece (236) to rotate in the opposite direction, and feeds back the action signal to the sensor element (c).

8. A chain type sensing mechanism according to claim 7, characterized in that: The trigger seat (232) and the rotating piece (236) rotate in opposite directions at an angle ranging from 3° to 15°.

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