Hydraulic lifting type middle carrier roller replacing device based on material conveying and control method of hydraulic lifting type middle carrier roller replacing device

Abstract

The invention relates to the technical field of carrier rollers, in particular to a hydraulic lifting type middle carrier roller replacing device based on material conveying and a control method thereof.The hydraulic lifting type middle carrier roller replacing device comprises a track plate and a bracket assembly, the bracket assembly is fixedly connected to one side of the track plate, a track groove is formed in the inner side of the track plate, and a rack is fixedly connected to the lower end of the track groove formed in the track plate; a displacement assembly is slidably connected to the inner side of a rail groove formed in the rail plate, a replacement assembly is fixedly connected to the top end of the displacement assembly, the displacement assembly comprises a movable table assembly, the movable table assembly comprises a folded plate, a ball groove is formed in the inner side of the folded plate, and the inner side of the ball groove is attached to the outer side of a steel ball; according to the device, a damaged carrier roller can be rapidly and safely replaced for the middle carrier roller of the belt conveyor, and the labor intensity and potential safety hazards caused by the fact that traditional workers make contact with a belt and conduct lifting operation are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of rollers, and in particular to a hydraulic lifting type intermediate roller replacement device based on material transmission and a control method thereof. Background Art

[0002] Rollers are important parts of belt conveyors. There are many types and large quantities of rollers. They account for 35% of the total cost of a belt conveyor and bear more than 70% of the resistance. Therefore, the quality of rollers is particularly important. The function of rollers is to support the weight of conveyor belts and materials. The operation must be flexible and reliable. Reducing the friction between conveyor belts and rollers plays a key role in the life of conveyor belts, which account for more than 30% of the total cost of conveyors. Rollers are classified into self-aligning rollers, buffer rollers, trough rollers, and parallel rollers according to their uses. Trough rollers are usually composed of two side rollers and one flat roller. The trough angle is generally 30 degrees. For detachable belt conveyors, the three rollers of the trough rollers are hinged together. This design helps to improve the stability of the conveyor belt and reduce deviation, thereby extending the service life of the conveyor belt. In trough rollers, the angle between the middle roller and the side roller is usually 35º, which limits the replacement space. Especially when replacing on a belt conveyor with a narrow space, the traditional roller replacement method requires maintenance personnel to touch the belt for lifting and installation, which increases labor intensity and safety hazards. Therefore, a hydraulic lifting middle roller replacement device based on material transmission and a control method thereof are proposed to address the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a hydraulic lifting intermediate roller replacement device based on material transmission and a control method thereof, so as to solve the problem that the traditional roller replacement method requires maintenance personnel to contact the belt for lifting and installation operations, which increases labor intensity and safety hazards.

[0004] To achieve the above object, the present invention provides the following technical solutions: A hydraulic lifting intermediate roller replacement device based on material transmission and a control method thereof include a track plate and a bracket assembly, wherein one side of the track plate is fixedly connected to the bracket assembly, a track groove is provided on the inner side of the track plate, a rack is fixedly connected to the lower end of the track groove provided on the track plate, a displacement assembly is slidably connected to the inner side of the track groove provided on the track plate, a replacement assembly is fixedly connected to the top of the displacement assembly, the displacement assembly includes a movable table assembly, the movable table assembly includes a folding plate, a bead groove is provided on the inner side of the folding plate, the inner side of the bead groove is fitted with the outer side of the steel ball, a servo motor is fixedly connected to the inner side of the folding plate, a gear is fixedly connected to the end of the main shaft of the servo motor, a gear is provided on the inner side of the folding plate near the gear, a convex rod is fixedly connected to the left side of the movable table assembly, a rubber sheet is fixedly connected to the outer side of the convex rod, and a The side is fixedly connected with a second ear seat, the inner side of the second ear seat is rotatably connected with a hydraulic rod, the outer side of the upper end of the hydraulic rod is rotatably connected with the first ear seat, the upper end of the movable platform assembly is fixedly connected with a limited stop block, and the replacement assembly includes a base block, the left side of the base block is fixedly connected with an inclined plate, the inner side of the left end of the inclined plate is provided with a movable spring groove, the lower end of the movable spring groove provided by the inclined plate is fixedly connected with a linear spring, the lower end of the movable spring groove provided by the inclined plate is fixedly connected with an electromagnet, the top of the linear spring is fixedly connected with a square iron plate, the top of the square iron plate is fixedly connected with an oblique clamping plate, the upper part of the left end of the inclined plate is provided with a placement groove, the inner side of the inclined plate is provided with a rear bracket, the folding plate is slidably connected to the inner side of the rail groove provided by the track plate, the outer side of the gear is meshed with the upper end of the rack, and the top of the first ear seat is fixedly connected to the bottom end of the base block.

[0005] As a further optimization content of the present invention, the bracket assembly includes a connecting support plate, the top of the connecting support plate is fixedly connected to a support plate, the top of the support plate is fitted with the outer side of the ball bearing, the outer side of the ball bearing is fixedly connected to a limiting ring, the inner side of the ball bearing is rotatably connected to three column rods, and the outer side of the three column rods is fixedly connected to a roller body.

[0006] As further optimized content of the present invention, the number of the support plates is several groups, the number of the support plates in each group is two, the support plates are provided with an arc-shaped groove near the ball bearing, a spacing is provided between the ball bearing and the roller body, the three-column rod is shaped like three sections of a cylinder, the cylinders at the front and rear ends of the three-column rod have a larger diameter, the limit ring is shaped like a circular ring, and the number of the limit rings is the same as the number of the ball bearings.

[0007] As a further optimization of the present invention, there are two track plates, and track grooves are provided on the inner sides of the two track plates. The track grooves run through one end of the track plates, and the front and rear ends of the connecting support plates are fixedly connected to the top ends of the track plates by bolts.

[0008] As a further optimization of the present invention, the side view shape of the movable platform assembly is a concave shape, the front end and the rear end of the movable platform assembly are embedded and installed in the track groove opened in the track plate, and the center of the limit stop block is on the same vertical line as the center of the base block.

[0009] As a further optimization of the present invention, the second ear seat is fixed to the upper front end and the upper rear end of the limit stop block, an axial hole is opened on the inner side of the second ear seat, an axial column is fixedly connected to the outer side of the hydraulic rod near the axial hole of the second ear seat, and an axial column is fixedly connected to the outer side of the first ear seat at the upper end of the hydraulic rod.

[0010] As a further optimization of the present invention, the number of each group of protruding rods is two, the rubber sheet is fixed between the two protruding rods, the shape of the rubber sheet is an arc, and the center of the rubber sheet is in the same vertical plane as the left end of the inclined plate.

[0011] As a further optimization content of the present invention, the shape of the bead groove is spherical, the bead groove passes through the lower end of the folding plate, the number of the bead grooves is the same as the number of steel balls, steel balls are installed at the front and rear ends of the folding plate, and the bottom end of the steel balls is fitted with the lower end of the rail groove opened in the track plate.

[0012] As a further optimization of the present invention, the number of the inclined plates is two, the movable spring groove runs through the upper end of the inclined plate, the opening shape of the movable spring groove is a rectangular body at both ends, the shape of the square iron plate is a rectangular body, the shape of the inclined clamping plate is composed of a rectangular body and a teaching triangle, and the inclined clamping plate protrudes from the lower end of the inclined plate to open the placement groove.

[0013] Control method of hydraulic lifting intermediate roller replacement device based on material transmission, S1: To achieve replacement without the need for staff and ensure the safety of replacement, the servo motor controls the device to move as a whole inside the track plate, and places the two ends of the intact roller body on the upper part of the two rear brackets. The servo motor is started to make the replacement component as a whole approach the ball bearing. When the servo motor is started, the replacement component moves as a whole, and after the intact roller body is aligned with the arc groove of the bracket, the replacement component is moved downward as a whole through the hydraulic rod. At this time, the electromagnet is started, and the electromagnet is magnetically attracted to the square iron plate; S2: When the device is stored to reduce the space occupied, the hydraulic rod is started at the same time, the hydraulic rod is contracted, and the replacement component moves downward as a whole, when the bottom end of the base block fits with the top end of the limit stopper; S3: For the designated bracket assembly, when the replacement device accurately moves the lower end of the roller body, the servo motor is started to drive the gear to rotate. The gear rotates at the lower end of the tooth groove. The distance the folding plate moves is accurately controlled by the start-up time of the servo motor, and the steel ball rolls inside the ball groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by means of the base block, the oblique-mouthed pallet, the rear bracket and the rubber sheet, the device can quickly and safely replace the damaged intermediate roller of the belt conveyor, thus avoiding the labor intensity and safety hazards caused by the traditional replacement method requiring the staff to contact the belt and lift the belt. At the same time, the device is small in size and suitable for narrow spaces, thus improving the maintenance efficiency and safety. 2. In the present invention, by means of the hydraulic rod, the limit stopper and the first ear seat, the roller replacement device can reduce the space occupied by the contraction action after the replacement operation is completed, which is convenient for storage. By controlling the overall movement and tilt state of the device, it can be ensured that the device occupies the minimum space when not in use, which is convenient for storage and transportation. This design improves the space utilization rate; 3. In the present invention, by setting up the servo motor, rack and track plate, the device can effectively control the moving distance of the folding plate by accurately controlling the starting time of the servo motor, thereby realizing precise control of the position of the replacement device. At the same time, the setting of the steel ball reduces the friction between the folding plate and the track plate when the folding plate moves, thereby improving the operating efficiency and accuracy of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the track plate structure of the present invention; Figure 3 It is a schematic diagram of the structure of the bracket assembly of the present invention; Figure 4 This is a schematic diagram of the connecting support plate structure of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure at A; Figure 6 It is a schematic diagram of the structure of the hydraulic rod of the present invention; Figure 7 It is a schematic diagram of the folding plate structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at B; Fig. 9 It is a schematic diagram of the structure of the base block of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the structure at C.

[0016] In the figure: 1. Track plate; 2. Bracket assembly; 21. Connecting support plate; 22. Support plate; 23. Ball bearing; 24. Limiting ring; 25. Three-column rod; 26. Roller body; 3. Rack; 4. displacement assembly; 41. movable table assembly; 411. folding plate; 412. bead groove; 413. steel ball; 414. servo motor; 415. gear; 416. tooth groove; 42. convex rod; 43. rubber sheet; 44. second ear seat; 45. hydraulic rod; 46. first ear seat; 47. limit stopper; 5. Replacement components; 51. Base block; 52. Inclined plate; 53. Active spring slot; 54. Linear spring; 55. Electromagnet; 56. Square iron plate; 57. Oblique clamping plate; 58. Placement groove; 59. Rear bracket; 6. Rail groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0019] See also Figure 1-10 , the present invention provides a technical solution: The hydraulic lifting type intermediate roller replacement device based on material transmission and its control method include a track plate 1 and a bracket assembly 2, wherein the bracket assembly 2 is fixedly connected to one side of the track plate 1, a track groove 6 is provided on the inner side of the track plate 1, a rack 3 is fixedly connected to the lower end of the track groove 6 provided on the track plate 1, a displacement assembly 4 is slidably connected to the inner side of the track groove 6 provided on the track plate 1, a replacement assembly 5 is fixedly connected to the top of the displacement assembly 4, the displacement assembly 4 includes a movable platform assembly 41, the movable platform assembly 41 includes a folding plate 411, a bead groove 412 is provided on the inner side of the folding plate 411, the inner side of the bead groove 412 is fitted with the outer side of the steel ball 413, a servo motor 414 is fixedly connected to the inner side of the folding plate 411, a gear 415 is fixedly connected to the end of the main shaft of the servo motor 414, a tooth groove 416 is provided on the inner side of the folding plate 411 near the gear 415, a convex rod 42 is fixedly connected to the left side of the movable platform assembly 41, a rubber sheet 43 is fixedly connected to the outer side of the convex rod 42, and one side of the upper end of the movable platform assembly 41 A second ear seat 44 is fixedly connected, a hydraulic rod 45 is rotatably connected to the inner side of the second ear seat 44, and a first ear seat 46 is rotatably connected to the outer side of the upper end of the hydraulic rod 45. A limited stopper 47 is fixedly connected to the upper end of the movable platform assembly 41. The replacement assembly 5 includes a base block 51, a slanted plate 52 is fixedly connected to the left side of the base block 51, and a movable spring groove 53 is opened on the inner side of the left end of the slanted plate 52. A linear spring 54 is fixedly connected to the lower end of the movable spring groove 53 opened on the slanted plate 52. The slanted plate 52 opens An electromagnet 55 is fixedly connected to the lower end of the movable spring slot 53, a square iron plate 56 is fixedly connected to the top of the linear spring 54, an oblique clamping plate 57 is fixedly connected to the top of the square iron plate 56, a placement groove 58 is provided on the upper part of the left end of the inclined plate 52, a rear bracket 59 is provided on the inner side of the inclined plate 52, the folding plate 411 is slidably connected to the inner side of the track groove 6 opened in the track plate 1, the outer side of the gear 415 is meshed with the upper end of the rack 3, and the top of the first ear seat 46 is fixedly connected to the bottom end of the base block 51.

[0020] As a further implementation of the present invention, the bracket assembly 2 includes a connecting support plate 21, a support plate 22 is fixedly connected to the top of the connecting support plate 21, the top of the support plate 22 is fitted with the outer side of the ball bearing 23, the outer side of the ball bearing 23 is fixedly connected to a limiting ring 24, the inner side of the ball bearing 23 is rotatably connected to a three-column rod 25, the outer side of the three-column rod 25 is fixedly connected to a roller body 26, the number of support plates 22 is several groups, each group of support plates 22 has two, the support plate 22 is provided with an arc groove near the ball bearing 23, the ball bearing 23 and the roller body 26 are fixedly connected to the three-column rod 25, the number of support plates 22 is several groups, each group of support plates 22 has two, the position of the support plate 22 near the ball bearing 23 is provided with an arc groove, the ball bearing 23 and the roller body 26 are fixedly connected to the three-column rod 25 ... There is a spacing between the main bodies 26, the three-column rod 25 is in the shape of three sections of a cylinder, the cylinders at the front and rear ends of the three-column rod 25 have larger diameters, the limiting ring 24 is in the shape of a torus, and the number of the limiting rings 24 is the same as the number of the ball bearings 23, providing a stable support structure, ensuring the stability and reliability of the roller during operation, and the spacing between the ball bearings 23 and the roller body 26 reduces the direct contact between the conveyor belt and the roller, thereby reducing friction, helping to reduce the wear of the conveyor belt and extend its service life; As a further implementation of this solution, the number of track plates 1 is two, and track grooves 6 are provided on the inner sides of the two track plates 1. The track grooves 6 pass through one end of the track plate 1. The front and rear ends of the connecting support plate 21 are fixedly connected to the top of the track plate 1 by bolts, so that the replacement device can be moved inside the track plate 1. As a further implementation of this solution, the side view shape of the movable platform assembly 41 is a concave shape, and the front and rear ends of the movable platform assembly 41 are embedded and installed in the track groove 6 opened in the track plate 1. The center of the limit stopper 47 is on the same vertical line as the center of the base block 51, which plays a role in limiting the base block 51 when it descends; As a further implementation of this solution, the second ear seat 44 is fixed to the upper front end and the upper rear end of the limit stopper 47, and an axial hole is opened inside the second ear seat 44. The hydraulic rod 45 is fixedly connected to the outer side of the axial hole of the second ear seat 44 with an axial column, and the upper end of the hydraulic rod 45 is fixedly connected to the outer side of the first ear seat 46 with an axial column. The number of each group of convex rods 42 is two, and the rubber sheet 43 is fixed between the two convex rods 42. The shape of the rubber sheet 43 is an arc body, and the center of the rubber sheet 43 is in the same vertical plane as the left end of the inclined plate 52. The concave side view shape design of the movable table assembly 41 optimizes space utilization, so that the device occupies the smallest space when not in use, is convenient for storage and transportation, and is convenient for lifting the replacement assembly 5 as a whole again, thereby improving the flexibility of operation. As a further implementation of this solution, the opening shape of the bead groove 412 is a spherical body, the bead groove 412 runs through the lower end of the folding plate 411, the number of the bead grooves 412 is the same as the number of the steel balls 413, the front and rear ends of the folding plate 411 are both equipped with steel balls 413, the bottom end of the steel ball 413 is in contact with the lower end of the track groove 6 opened on the track plate 1, and the space occupation is reduced by the contraction action, which is convenient for storage. By controlling the overall movement and tilt state of the device, it can be ensured that the device occupies the minimum space when not in use, which is convenient for storage and transportation. This design improves space utilization; As a further implementation scheme of the present scheme, there are two inclined plates 52, and a movable spring groove 53 runs through the upper end of the inclined plate 52. The opening shape of the movable spring groove 53 is a rectangular body at both ends, the shape of the square iron plate 56 is a rectangular body, and the shape of the inclined clamping plate 57 is composed of a rectangular body and a teaching triangle. The inclined clamping plate 57 protrudes from the lower end of the inclined plate 52 to open a placement groove 58, which facilitates the replacement of the designated roller body 26, and quickly and safely replaces the damaged roller, avoiding the labor intensity and safety hazards caused by the staff's contact with the belt and lifting operations.

[0021] Workflow: To achieve the goal of replacing the intermediate roller without the need for staff and to ensure the safety of the replacement, the servo motor 414 controls the device to move as a whole inside the track plate 1. When the replacement device moves to the right end of the designated roller body 26, the hydraulic rod 45 is used to lift the replacement component 5 as a whole. Prior to this, the two ends of the intact roller body 26 are placed on the upper part of the two rear brackets 59, so that the two inclined plates 52 wrap the two limit rings 24. When the bottom end of the placement groove 58 opened on the base block 51 is flush with the bottom end of the ball bearing 23, the servo motor 414 is started to make the replacement component 5 move toward the roller as a whole. The ball bearing 23 approaches, and according to the shape of the oblique clamping plate 57, after the ball bearing 23 contacts the oblique clamping plate 57, the oblique clamping plate 57 will move downward. When the oblique clamping plate 57 contacts the ball bearing 23, under the extrusion of the ball bearing 23, the oblique clamping plate 57 drives the square iron plate 56 to be stored in the inside of the movable spring groove 53. At the same time, the oblique clamping plate 57 squeezes the linear spring 54, and the linear spring 54 is deformed. When the ball bearing 23 moves away from the oblique clamping plate 57, under the action of the elastic force of the linear spring 54, the oblique clamping plate 57 protrudes out of the lower part of the placement groove 58 again, and the square iron plate 56 plays a role in the oblique clamping plate 57. The function of limiting is that at this time, under the obstruction of the oblique clamping plate 57, the damaged roller body 26 is located inside the placement groove 58. When the hydraulic rod 45 is started, the replacement component 5 and the roller body 26 are moved upward a small distance as a whole. When the ball bearing 23 of the damaged roller body 26 is separated from the arc groove at the upper end of the support plate 22, the replacement component 5 is moved as a whole when the servo motor 414 is started. After the intact roller body 26 is aligned with the arc groove of the support plate 22, the replacement component 5 is moved downward as a whole through the hydraulic rod 45 until the damaged roller body 26 is separated from the belt. At this time, the electromagnet 55 is started, and the electromagnet 55 The square iron plate 56 is magnetically attracted to each other, and the square iron plate 56 and the oblique clamping plate 57 are stored in the movable spring groove 53. At the same time, the linear spring 54 is elastically deformed again. Since the right end of the placement groove 58 is in a slope shape, the roller body 26 will roll out from the placement groove 58 and fall onto the top of the rubber sheet 43. The servo motor 414 is started to move the replacement device away from the support plate 22. The damaged roller body 26 is transported out through the replacement device to complete the replacement of the roller body 26. The device is convenient and quick to replace, and no staff operation is required, which improves the safety of maintenance. In addition, the device is small in size and suitable for narrow working spaces. When the device is stored to reduce the space occupied, the hydraulic rod 45 is started at the same time, and the hydraulic rod 45 is retracted. When the hydraulic rod 45 is retracted, the lower end of the hydraulic rod 45 is connected to the inside of the second ear seat 44 through the shaft column rotation, and the upper end of the hydraulic rod 45 is connected to the inside of the first ear seat 46 through the shaft column rotation. After the multiple hydraulic rods 45 are retracted, the replacement component 5 will move downward as a whole. When the bottom end of the base block 51 is in contact with the top end of the limit stopper 47, the storage of the device is completed. The limit stopper 47 limits the moving distance of the base block 51, so that the hydraulic rod 45 after storage is in an inclined state, which is convenient for the replacement component 5 to be raised as a whole again. At the same time, the top end of the base block 51 after storage is lower than the lower end of the connecting support plate 21, and the bottom end of the movable platform component 41 is flush with the bottom end of the track plate 1. This device can reduce the space occupied and facilitate the movement of the device. For the specified bracket assembly 2, when the replacement device accurately moves the lower end of the roller body 26, the servo motor 414 is started to drive the gear 415 to rotate. The gear 415 rotates at the lower end of the tooth groove 416. The tooth groove 416 runs through the lower part of the folding plate 411 to facilitate the engagement of the gear 415 with the rack 3. When the gear 415 rotates, due to the engagement with the rack 3, the gear 415 drives the servo motor 414 and the folding plate 411 to move. The moving distance of the folding plate 411 is accurately controlled by the starting time of the servo motor 414. When the folding plate 411 moves, the steel ball 413 rolls inside the ball groove 412 due to the friction between the folding plate 411 and the track plate 1. At the same time, the folding plate 411 moves inside the track groove 6. The setting of the steel ball 413 can reduce the friction between the folding plate 411 and the track plate 1 when it moves. At this time, the position of the replacement device can be accurately controlled.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic lifting intermediate roller replacement device based on material transmission, comprising a track plate (1) and a bracket assembly (2), characterized in that: A bracket assembly (2) is fixedly connected to one side of the track plate (1), a track groove (6) is provided on the inner side of the track plate (1), a rack (3) is fixedly connected to the lower end of the track groove (6) provided on the track plate (1), a displacement assembly (4) is slidably connected to the inner side of the track groove (6) provided on the track plate (1), and a replacement assembly (5) is fixedly connected to the top end of the displacement assembly (4); The displacement assembly (4) comprises a movable platform assembly (41), the movable platform assembly (41) comprising a folding plate (411), a bead groove (412) being provided on the inner side of the folding plate (411), the inner side of the bead groove (412) being in contact with the outer side of a steel ball (413), a servo motor (414) being fixedly connected to the inner side of the folding plate (411), a gear (415) being fixedly connected to the end of the main shaft of the servo motor (414), a tooth groove (416) being provided on the inner side of the folding plate (411) close to the gear (415), a convex rod (42) being fixedly connected to the left side of the movable platform assembly (41), a rubber sheet (43) being fixedly connected to the outer side of the convex rod (42), a second ear seat (44) being fixedly connected to one side of the upper end of the movable platform assembly (41), a hydraulic rod (45) being rotatably connected to the inner side of the second ear seat (44), the hydraulic rod (45) being fixedly ... 45) is rotatably connected to a first ear seat (46) at the outer side of the upper end, the upper end of the movable platform assembly (41) is fixedly connected to a limit stopper (47), the replacement assembly (5) comprises a base block (51), the left side of the base block (51) is fixedly connected to an inclined plate (52), the inner side of the left end of the inclined plate (52) is provided with a movable spring groove (53), the lower end of the movable spring groove (53) provided in the inclined plate (52) is fixedly connected to a linear spring (54), the lower end of the movable spring groove (53) provided in the inclined plate (52) is fixedly connected to an electromagnet (55), the top end of the linear spring (54) is fixedly connected to a square iron plate (56), the top end of the square iron plate (56) is fixedly connected to an oblique clamping plate (57), the upper part of the left end of the inclined plate (52) is provided with a placement groove (58), and the inner side of the inclined plate (52) is provided with a rear bracket (59); The folding plate (411) is slidably connected to the inner side of the track groove (6) opened in the track plate (1), the outer side of the gear (415) is meshed with the upper end of the rack (3), and the top end of the first ear seat (46) is fixedly connected to the bottom end of the base block (51).

2. The hydraulic lifting intermediate roller replacement device based on material transmission according to claim 1 is characterized in that: The bracket assembly (2) comprises a connecting support plate (21), the top end of the connecting support plate (21) is fixedly connected to a support plate (22), the top end of the support plate (22) is in contact with the outer side of a ball bearing (23), the outer side of the ball bearing (23) is fixedly connected to a limit ring (24), the inner side of the ball bearing (23) is rotatably connected to a three-column rod (25), and the outer side of the three-column rod (25) is fixedly connected to a roller body (26).

3. The hydraulic lifting intermediate roller replacement device based on material transmission according to claim 2 is characterized in that: The number of the support plates (22) is several groups, and the number of each group of the support plates (22) is two. The support plates (22) are provided with an arc-shaped groove at a position close to the ball bearing (23). A spacing is provided between the ball bearing (23) and the roller body (26). The three-column rod (25) is in the shape of three sections of a cylinder. The cylinders at the front and rear ends of the three-column rod (25) have larger diameters. The limiting ring (24) is in the shape of a circular ring. The number of the limiting rings (24) is the same as the number of the ball bearings (23).

4. The hydraulic lifting intermediate roller replacement device based on material transmission according to any one of claims 1 and 2 is characterized in that: There are two track plates (1), and a track groove (6) is provided on the inner side of each of the two track plates (1). The track groove (6) passes through one end of the track plate (1), and the front and rear ends of the connecting support plate (21) are fixedly connected to the top of the track plate (1) by bolts.

5. The hydraulic lifting intermediate roller replacement device based on material transmission according to claim 1 is characterized in that: The movable platform assembly (41) is in a concave shape when viewed from the side. The front end and the rear end of the movable platform assembly (41) are both embedded in the track groove (6) provided in the track plate (1). The center of the limit stopper (47) is on the same vertical line as the center of the base block (51).

6. The hydraulic lifting type intermediate roller replacement device based on material transmission according to claim 1 is characterized in that: The second ear seat (44) is fixed to the upper front end and the upper rear end of the limit stopper (47); an axial hole is provided inside the second ear seat (44); an axial column is fixedly connected to the outer side of the axial hole of the second ear seat (44) of the hydraulic rod (45); and an axial column is fixedly connected to the outer side of the first ear seat (46) at the upper end of the hydraulic rod (45).

7. The hydraulic lifting intermediate roller replacement device based on material transmission according to claim 1 is characterized in that: The number of each group of protruding rods (42) is two, and the rubber sheet (43) is fixed between the two protruding rods (42). The shape of the rubber sheet (43) is an arc-shaped body, and the center of the rubber sheet (43) and the left end of the inclined plate (52) are in the same vertical plane.

8. The hydraulic lifting type intermediate roller replacement device based on material transmission according to claim 1 is characterized in that: The bead groove (412) is opened in the shape of a spherical body. The bead groove (412) passes through the lower end of the folding plate (411). The number of the bead grooves (412) is the same as the number of the steel balls (413). The steel balls (413) are installed at the front and rear ends of the folding plate (411). The bottom end of the steel ball (413) is in contact with the lower end of the track groove (6) opened in the track plate (1).

9. The hydraulic lifting intermediate roller replacement device based on material transmission according to claim 1 is characterized in that: The number of the inclined plates (52) is two, the movable spring groove (53) penetrates the upper end of the inclined plate (52), the opening shape of the movable spring groove (53) is a rectangular body at both ends, the shape of the square iron plate (56) is a rectangular body, the shape of the inclined clamping plate (57) is composed of a rectangular body and a teaching triangle, and the inclined clamping plate (57) protrudes from the lower end of the inclined plate (52) where the placement groove (58) is opened.

10. The control method of the hydraulic lifting type intermediate roller replacement device based on material transmission according to any one of claims 1 to 9, characterized in that: S1: To achieve replacement of the device and ensure the safety of the replacement, the servo motor (414) is used to control the device to move as a whole inside the track plate (1), and the two ends of the intact roller body (26) are placed on the upper parts of the two rear brackets (59). The servo motor (414) is started to make the replacement component (5) as a whole approach the direction of the ball bearing (23). When the servo motor (414) is started, the replacement component (5) is moved as a whole, and after the intact roller body (26) is aligned with the arc groove of the bracket (22), the replacement component (5) is moved downward as a whole through the hydraulic rod (45). At this time, the electromagnet (55) is started, and the electromagnet (55) is magnetically attracted to the square iron plate (56); S2: When the device is stored to reduce the space occupied, the hydraulic rod (45) is started at the same time, the hydraulic rod (45) is contracted, and the replacement component (5) moves downward as a whole, and when the bottom end of the base block (51) is in contact with the top end of the limit stopper (47); S3: For the designated bracket assembly (2), when the replacement device accurately moves the lower end of the roller body (26), the servo motor (414) is started to drive the gear (415) to rotate, and the gear (415) rotates at the lower end of the tooth groove (416). The moving distance of the folding plate (411) is accurately controlled by the start-up time of the servo motor (414), and the steel ball (413) rolls inside the ball groove (412).

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