A lock assembly for replacing a brush strip on a roller

Abstract

The application discloses a locking assembly for replacing brush strips on a roller body, wherein a plurality of support strips are uniformly arranged on the outer periphery of the roller body; a surface of the support strip is fixed in parallel with the brush strip; a plurality of installation grooves corresponding to the support strips are axially arranged on the circumferential sidewall of the roller body; a containing cavity is connected in parallel to a surface of the installation groove close to the central axis of the roller body; a plurality of pull rods are fixed in vertical to a surface of the support strip away from the brush strip along the length direction; a positioning rod is fixed to one end of the pull rod; the pull rod is slidingly fitted in the installation groove; and the positioning rod is arranged in the containing cavity; the locking assembly composed of the movable shaft, the bearing block and the locking cam arranged in the containing cavity; when the brush roller is working, the brush strip can be stably connected to the roller body; when the brush strip is replaced, the support strip can be rapidly separated from the roller body through the locking assembly; the use cost of the brush roller is effectively reduced, and the working efficiency of the rust removal machine is ensured.

Description

[0001] This application is a divisional application of patent application filed on February 24, 2023, with application number 202310159946.1 and invention title "A brush roller structure for easy replacement of brush strips". Technical Field

[0002] This invention belongs to the field of brush roller technology, and in particular relates to a locking assembly for replacing brush strips on a roller body. Background Technology

[0003] Because steel is made of iron, its surface will develop oxide scale or rust. Therefore, before further processing, it is generally necessary to use a brush roller with brush strips on the surface of the steel to polish the surface of the steel plate to remove the oxide scale or rust and make it smooth and shiny.

[0004] In existing technologies, most brush strips are directly fixed to the periphery of the brush roller. When some brush strips wear out significantly, the entire brush roller needs to be replaced. This not only increases the cost of use but also wastes materials and is inconvenient to use. At the same time, replacing the brush roller is time-consuming, thus affecting the working efficiency of the rust removal machine.

[0005] The applicant hopes to distribute multiple grooves evenly around the roller body and install multiple support bars for brush strips in the grooves to enable quick assembly and disassembly of the brush strips; however, the design challenge is that the roller body rotates during operation, which will generate radial centrifugal force on the support bars. Therefore, the fit between the support bars and the grooves must be firm and stable when the brush roller is in operation; at the same time, when the brush strip needs to be replaced, it is necessary to ensure that the support bars can be quickly separated from the roller body for replacement.

[0006] Based on the above requirements, a locking component needs to be designed to meet the usage requirements of the brush roller. Summary of the Invention

[0007] The present invention provides a locking assembly for replacing brush strips on a roller, the purpose of which is to solve the technical problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a locking assembly for replacing brush strips on a roller, and a plurality of uniformly arranged support strips are provided on the outer periphery of the roller; the support strips are used for fixing the brush strips; a plurality of installation channels corresponding to the support strips are axially opened on the circumferential side wall of the roller; a surface of the installation channel close to the central axis of the roller is connected in parallel with an accommodating chamber; a "convex"-shaped structure is formed between the installation channel and the accommodating chamber; both the installation channel and the accommodating chamber penetrate through both end faces of the roller; a plurality of pull rods are vertically fixed along the length direction on a surface of the support strip facing away from the brush strip; one end of the pull rod is fixed with a positioning rod; the pull rod is slidably fitted in the installation channel; the positioning rod is disposed in the accommodating chamber; The locking assembly for limiting the movement of the positioning rod is installed in the accommodating chamber; the locking assembly includes a pair of bearing blocks respectively disposed in the two opposite ports of the accommodating chamber, and a pair of movable shafts inserted side by side into the accommodating chamber; a plurality of locking cams corresponding to the positioning rods are fixedly sleeved on the movable shafts; the outer contour of the locking cam abuts against a surface of the positioning rod close to the support strip.

[0009] As a preferred technical solution of the present invention, a pair of sliding grooves corresponding to the movable shafts are penetratingly opened on a surface of the bearing block close to the accommodating chamber; the sliding grooves are arranged parallel to the pull rods; two ends of the movable shaft are respectively movably inserted into the sliding grooves on the two bearing blocks and are both threadedly fitted with locking sleeves.

[0010] As a preferred technical solution of the present invention, two opposite ends of the accommodating chamber are both provided with limiting grooves; the limiting grooves are disposed at an edge of the accommodating chamber close to the central axis of the roller; one edge of the bearing block is slidably inserted into the limiting groove.

[0011] As a preferred technical solution of the present invention, the other edge of the bearing block is provided with a sealing protrusion corresponding to the installation channel; the sealing protrusion is slidably fitted in the installation channel; the sealing protrusion abuts against the end face of the support strip.

[0012] As a preferred technical solution of the present invention, a pair of connecting blocks are rotatably sleeved on the movable shaft; a surface of the connecting block is connected to a surface of the accommodating chamber through a tension spring; the tension spring is disposed between the connecting block and the support strip.

[0013] As a preferred technical solution of the present invention, a plurality of through holes are arranged side by side along the length direction on a surface of the accommodating chamber close to the support strip; a plurality of positioning holes corresponding to the through holes are arranged side by side on a surface of the support strip; a plurality of rotating sleeves corresponding to the through holes are rotatably sleeved on the movable shaft; a protruding column is radially fixed on the outer wall of the rotating sleeve; the protruding column is slidably inserted into the through hole; one end of the protruding column can be inserted into the corresponding positioning hole.

[0014] As a preferred embodiment of the present invention, the ends of the two movable shafts facing the same direction are connected by a baffle for blocking the slide groove; the baffle is clearance-fitted with the movable shaft; the baffle is disposed between the bearing block and the locking sleeve.

[0015] The present invention has the following beneficial effects: When the brush strip needs to be positioned, after all the pull rods on the support bar are moved into the mounting groove, the movable shaft in the locking assembly of the present invention is rotated to drive the locking cam to move in the receiving cavity, causing the outer contour of the locking cam to abut against the surface of the positioning rod near the support bar. At this time, the flat surface of the locking cam abuts against the surface of the positioning rod near the support bar, forming a surface-to-surface fit, thereby pressing the positioning rod into the receiving cavity and stably installing the brush strip on the roller body. When the support bar needs to be removed, the movable shaft can be rotated in the opposite direction. This not only effectively reduces the operating cost of the brush roller, but also ensures the working efficiency of the rust removal machine.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a locking assembly for replacing brush strips on a roller according to the present invention.

[0019] Figure 2 This is a schematic diagram of the connection between the roller body, support bar, tie rod and locking assembly of the present invention.

[0020] Figure 3 This is a schematic diagram of the connection between the roller body and the locking assembly of the present invention.

[0021] Figure 4 This is a schematic diagram of the roller body of the present invention.

[0022] Figure 5 This is a schematic diagram of the connection between the mounting channel and the receiving chamber of the present invention.

[0023] Figure 6 This is a schematic diagram of the connection between the support bar and the locking assembly of the present invention.

[0024] Figure 7 This is a schematic diagram of the support strip of the present invention.

[0025] Figure 8 This is a schematic diagram of the locking component of the present invention.

[0026] Figure 9 This is a diagram showing the relative positional relationship between the roller and the support block of the present invention.

[0027] Figure 10 This is a schematic diagram of the connection between the bearing block and the movable shaft of the present invention.

[0028] The attached diagram lists the components represented by each number as follows: 1-Roller body, 2-Support bar, 3-Brush bar, 4-Tie rod, 5-Locking assembly, 101-Mounting groove, 102-Accommodation chamber, 103-Limiting groove, 104-Through hole, 201-Positioning hole, 401-Positioning rod, 501-Bearing block, 502-Moving shaft, 503-Locking sleeve, 504-Locking cam, 505-Connecting block, 506-Tension spring, 507-Rotating sleeve, 508-Protrusion, 509-Baffle, 5011-Slide groove, 5012-Sealing protrusion, 5013-Pin, 5021-Channel. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific Implementation

[0030] Please see Figures 1-7as shown, the present invention relates to a brush roller structure with easy-to-replace brush strips, comprising a conventional roller body 1 in the art and a plurality of support strips 2 uniformly arranged on the outer periphery of the roller body 1; a conventional brush strip 3 in the art is fixed parallelly to one surface of the support strip 2; a plurality of mounting grooves 101 corresponding to the support strips 2 are axially opened on the circumferential side wall of the roller body 1; a containing chamber 102 is connected parallelly to the surface of the mounting groove 101 close to the central axis of the roller body 1; a "convex"-shaped structure is formed between the mounting groove 101 and the containing chamber 102; both the mounting groove 101 and the containing chamber 102 penetrate through both end faces of the roller body 1; a plurality of pull rods 4 are vertically fixed along the length direction on the surface of the support strip 2 facing away from the brush strip 3; a positioning rod 401 is fixed at one end of the pull rod 4; the pull rod 4 is arranged perpendicular to the positioning rod 401; the positioning rod 401 is arranged perpendicular to the brush strip 3; the positioning rod 401 and the pull rod 4 form a T-shaped structure; the surface of the support strip 2 facing away from the brush strip 3 is attached to the circumferential side wall of the roller body 1; the pull rod 4 is slidably fitted in the mounting groove 101; the positioning rod 401 is arranged in the containing chamber 102; a locking assembly 5 for restricting the movement of the positioning rod 401 is installed in the containing chamber 102. In use, when any one of the brush strips 3 needs to be replaced, the movement restriction on the positioning rod 401 is first released by the locking assembly 5, any end of the support strip 2 is held and pulled along the length direction of the mounting groove 101, so that the plurality of pull rods 4 on the support strip 2 are gradually moved out of the mounting groove 101, thereby realizing the removal of the brush strip 3 from the roller body 1; then when the brush strip 3 needs to be installed, the support strip 2 is arranged parallel to the mounting groove 101, and the plurality of pull rods 4 on the support strip 2 are aligned with the mounting groove 101, then the support strip 2 is pulled to make the plurality of pull rods 4 on the support strip 2 gradually move into the mounting groove 101, and finally the movement of the positioning rod 401 is restricted by the locking assembly 5, so as to realize the installation of the brush strip 3 on the roller body 1, which not only effectively reduces the use cost of the brush roller, but also ensures the working efficiency of the derusting machine. Detailed Embodiment

[0031] On the basis of the first specific embodiment, as shown in Figures 2-3 and Figures 5-6As shown, limiting grooves 103 are provided at both opposite ends of the receiving chamber 102; the limiting grooves 103 are located at one edge of the receiving chamber 102 near the central axis of the roller body 1; the locking assembly 5 includes a pair of bearing blocks 501 respectively disposed in the opposite two ends of the receiving chamber 102 and a pair of movable shafts 502 inserted side by side in the receiving chamber 102; one edge of the bearing block 501 is slidably inserted into the limiting groove 103; a pair of sliding grooves 5011 corresponding to the movable shafts 502 are opened through one surface of the bearing block 501 near the receiving chamber 102; the sliding grooves 5011 are arranged parallel to the pull rod 4; the two movable shafts 502 are disposed on opposite sides of the pull rod 4; the movable shafts 502 are arranged on opposite sides of the pull rod 4; the movable shafts 5011 are arranged on opposite sides of the roller body 102. 02 is positioned between the positioning rod 401 and the mounting channel 101; both ends of the movable shaft 502 are respectively movably inserted into the sliding grooves 5011 on the two bearing blocks 501 and are threadedly fitted with locking sleeves 503; the movable shaft 502 can slide along the length direction of the sliding groove 5011 and also slide within the sliding groove 5011 along the length direction of the support bar 2; multiple locking cams 504 corresponding to the positioning rod 401 are fixedly sleeved on the movable shaft 502; the outer contour of the locking cam 504 abuts against the surface of the positioning rod 401 near the support bar 2; the outer contour of the locking cam 504 has a flat surface; the flat surface is located at the maximum radius of the locking cam 504. In use, when positioning of the brush strip 3 is required, after all the pull rods 4 on the support strip 2 are moved into the mounting groove 101, the two ends of the movable shaft 502 are respectively inserted into the sliding grooves 5011 on the two bearing blocks 501. Then, by rotating the movable shaft 502, the locking cam 504 is driven to move within the receiving chamber 102, causing the outer contour of the locking cam 504 to abut against the surface of the positioning rod 401 near the support strip 2. At the same time, the movable shaft 502 moves within the sliding groove 5011. When the movable shaft 502 moves to the end of the sliding groove 5011 away from the central axis of the roller body 1, the locking cam 504... The maximum radius point of 04 abuts against the surface of the positioning rod 401 near the support bar 2. At this time, the flat surface of the locking cam 504 abuts against the surface of the positioning rod 401 near the support bar 2, forming a surface-to-surface fit, thereby pressing the positioning rod 401 into the receiving chamber 102. Then, by threading the locking sleeve 503 onto the end of the movable shaft 502 and tightening the locking sleeve 503, one end of the locking sleeve 503 abuts against the outer surface of the bearing block 501. At this time, the bearing block 501 is firmly fitted into the limiting groove 103, thereby locking the position of the positioning rod 401 and thus locking the position of the brush bar 3. Additionally, as shown in the figure... Figure 10As shown, to further improve the locking effect of the positioning rod 401, pins 5013 corresponding to the slide groove 5011 are inserted into both opposite sides of the bearing block 501 along the length of the positioning rod 401. One end of the pin 5013 can be inserted into the slide groove 5011, and the pin 5013 is threaded into the bearing block 501. Furthermore, holes 5021 corresponding to the pins 5013 are opened axially at both ends of the positioning rod 401. When the movable shaft 502 moves to the end of the slide groove 5011 away from the central axis of the roller body 1, one end of the pin 5013 is first inserted into the positioning rod. Inside the channel 5021 of rod 401, the circumferential sidewall of pin 5013 is tangent to one or both opposite sides of channel 5021, and pin 5013 slides into channel 5021 (at this time, the other end of pin 5013 is flush with the side of bearing block 501; by opening a straight groove on the other end face of pin 5013, a flathead screwdriver is used to engage with the straight groove to drive pin 5013), thereby preventing the movable shaft 502 from rotating in the slide groove 5011. Then, the locking sleeve 503 is tightened to achieve dual positioning of bearing block 501 and movable shaft 502.

[0032] Among them, such as Figure 6 and Figure 9 As shown, the other edge of the support block 501 is provided with a sealing protrusion 5012 corresponding to the mounting channel 101; the sealing protrusion 5012 is slidably fitted in the mounting channel 101; the sealing protrusion 5012 abuts against the end face of the support bar 2. By designing the sealing protrusion 5012 to slide in the mounting channel 101, the sealing performance of the receiving chamber 102 can be guaranteed.

[0033] Among them, such as Figures 2-3 , Figure 6 and Figure 8 As shown, a pair of connecting blocks 505 are rotatably sleeved on the movable shaft 502; one surface of the connecting block 505 is connected to one surface of the receiving chamber 102 by a tension spring 506; the tension spring 506 is disposed between the connecting block 505 and the support bar 2. By designing that one surface of the connecting block 505 is connected to one surface of the receiving chamber 102 by a tension spring 506, the position of the movable shaft 502 can be effectively limited, and when the movable shaft 502 moves to one end of the slide groove 5011 away from the central axis of the roller body 1, the tension spring 506 applies a pulling force to the movable shaft 502. Specific Implementation

[0034] Based on the second specific embodiment, as follows Figure 3 and Figures 5-8As shown, the receiving chamber 102 has multiple through holes 104 arranged side by side along its length on one surface near the support bar 2; the support bar 2 has multiple positioning holes 201 arranged side by side corresponding to the through holes 104 on one surface; multiple rotating sleeves 507 corresponding to the through holes 104 are rotatably sleeved on the movable shaft 502; a protrusion 508 made of elastic rubber is radially fixed to the outer wall of the rotating sleeve 507; the protrusion 508 slides through the through hole 104; one end of the protrusion 508 can be inserted into the corresponding positioning hole 201; when one end of the protrusion 508 is inserted into the corresponding positioning hole 201, the protrusion 508 and the positioning hole 201 are interference-fitted. When the movable shaft 502 moves to the end of the slide groove 5011 away from the central axis of the roller body 1, one end of the protrusion 508 moves from the through hole 104 into the positioning hole 201, at which time the protrusion 508 and the positioning hole 201 are interference-fitted, thereby further defining the position of the support bar 2.

[0035] Among them, such as Figure 6 and Figure 8 As shown, the two movable shafts 502 are connected at the ends facing the same direction by a baffle 509 for shielding the slide groove 5011; the baffle 509 is clearance-fitted with the movable shaft 502; the baffle 509 is disposed between the bearing block 501 and the locking sleeve 503. By designing the baffle 509 to shield the slide groove 5011, the sealing of the receiving chamber 102 can be guaranteed.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A locking assembly for replacing brush strips on a roller body, characterized in that: A roller body (1) and a plurality of uniformly arranged support bars (2) on the outer periphery of the roller body (1); the support bars (2) are used to fix brush bars (3); a plurality of mounting grooves (101) corresponding to the support bars (2) are axially opened on the circumferential side wall of the roller body (1); a surface of the mounting groove (101) close to the central axis of the roller body (1) is connected in parallel with a accommodating chamber (102); a "convex"-shaped structure is formed between the mounting groove (101) and the accommodating chamber (102); and both the mounting groove (101) and the accommodating chamber (102) penetrate through both end faces of the roller body (1); a plurality of pull rods (4) are vertically fixed along the length direction on a surface of the support bar (2) facing away from the brush bar (3); a positioning rod (401) is fixed at one end of the pull rod (4); the pull rod (4) is slidably fitted in the mounting groove (101); the positioning rod (401) is disposed in the accommodating chamber (102); A locking assembly (5) for limiting the movement of the positioning rod (401) is installed in the accommodating chamber (102); the locking assembly (5) includes a pair of bearing blocks (501) respectively disposed in the two opposite ports of the accommodating chamber (102) and a pair of movable shafts (502) inserted side by side in the accommodating chamber (102); a plurality of locking cams (504) corresponding to the positioning rod (401) are fixedly sleeved on the movable shaft (502); the outer contour of the locking cam (504) abuts against a surface of the positioning rod (401) close to the support bar (2).

2. A locking assembly for replacing brush strips on a roller body according to claim 1, characterized in that, A surface of the bearing block (501) close to the accommodating chamber (102) is penetratingly opened with a pair of sliding grooves (5011) corresponding to the movable shaft (502); the sliding grooves (5011) are arranged in parallel with the pull rod (4); two ends of the movable shaft (502) are respectively movably inserted into the sliding grooves (5011) on the two bearing blocks (501) and are both threadedly fitted with a locking sleeve (503).

3. A locking assembly for replacing brush strips on a roller body according to claim 1, characterized in that, Two opposite ends of the accommodating chamber (102) are both provided with a limiting groove (103); the limiting groove (103) is disposed at an edge of the accommodating chamber (102) close to the central axis of the roller body (1); one edge of the bearing block (501) is slidably inserted into the limiting groove (103).

4. A locking assembly for replacing brush strips on a roller body according to claim 1, characterized in that, The bearing block (501) is provided with a sealing protrusion (5012) corresponding to the mounting groove (101); the sealing protrusion (5012) is slidably fitted in the mounting groove (101); the sealing protrusion (5012) abuts against the end face of the support bar (2).

5. A locking assembly for replacing brush strips on a roller body according to claim 1, characterized in that, A pair of connecting blocks (505) are rotatably sleeved on the movable shaft (502); one surface of the connecting block (505) is connected to one surface of the accommodating chamber (102) through a tension spring (506); the tension spring (506) is disposed between the connecting block (505) and the support bar (2).

6. A locking assembly for replacing brush strips on a roller body according to claim 1, characterized in that, The receiving chamber (102) has a plurality of through holes (104) arranged side by side along the length of one surface near the support bar (2); the support bar (2) has a plurality of positioning holes (201) arranged side by side corresponding to the through holes (104); the movable shaft (502) is rotatably fitted with a plurality of rotating sleeves (507) corresponding to the through holes (104); the outer wall of the rotating sleeve (507) is radially fixed with a protrusion (508); the protrusion (508) slides through the through hole (104); one end of the protrusion (508) can be inserted into the corresponding positioning hole (201).

7. A locking assembly for replacing brush strips on a roller body according to claim 1, characterized in that, The two movable shafts (502) are connected to the same end by a baffle (509) for blocking the slide groove (5011); the baffle (509) is clearance-fitted with the movable shaft (502); the baffle (509) is disposed between the bearing block (501) and the locking sleeve (503).

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