Belt conveyor carrier roller replacing device

Abstract

The utility model provides a belt conveyor carrier roller replacing device, which belongs to the technical field of belt conveyor maintenance equipment and comprises two groups of carrier roller replacing units symmetrically arranged on two sides of a belt conveyor, each carrier roller replacing unit comprises a chassis, and a first base rod and a second base rod are parallelly arranged on the surface of each chassis. A first telescopic lifting rod and a second telescopic lifting rod are arranged at the upper end of the first base rod and the upper end of the second base rod respectively, the upper end of the first lifting rod is connected with a length-adjustable traction cable, the tail end of the traction cable is connected with a clamping plate, and the second lifting rod is provided with a liftable roller moving rod. The belt conveyor carrier roller replacing device solves the problems that when an existing belt conveyor carrier roller replacing device is used for replacing a carrier roller, the conveying belt is rigidly suspended, so that the conveying belt is tensioned all the time, no movable residual space exists, and the carrier roller is prone to damage if the conveying belt is jacked by the carrier roller when the carrier roller is replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyor maintenance equipment, and particularly relates to a belt conveyor roller replacement device. Background Art

[0002] Belt conveyor is a belt conveyor, which is a continuous conveying machine that uses a flexible conveyor belt as a material carrying and traction component; an endless conveyor belt surrounds the driving roller and the redirecting roller. The upper and lower branches between the two rollers are supported by several rollers. The material is placed on the upper branch, and the friction between the driving roller and the belt is used to drag the conveyor belt and the material to run. It is suitable for conveying bulk materials and finished items in horizontal and inclined directions, and can also be used in assembly lines for certain process operations. It has a simple structure, stable and reliable operation, strong adaptability to materials, large conveying capacity, low power consumption, and wide application. The rollers on the belt conveyor play the role of tensioning the conveyor belt and conveying the conveyor belt; the rollers are supported and rotated by their bearings. If one or several rollers on the entire conveyor belt are damaged and the rotation is not smooth, they need to be replaced in time, otherwise it will affect the normal operation of the belt conveyor as a whole.

[0003] When replacing the rollers of a belt conveyor, it is necessary to first clean the materials on the conveyor belt, then find two manpower points from the damaged roller to lift the conveyor belt to expose the damaged roller, then manually drag the damaged roller out and replace it with a new one. Relying on manpower for replacement requires a dedicated person to support and suspend the conveyor belt, and also requires a dedicated person to disassemble the damaged roller and replace the new roller, which consumes manpower and requires the cooperation of multiple people; therefore, the prior art provides an auxiliary device for replacing damaged rollers of a belt conveyor, which can support and replace the rollers with mechanical assistance; saving operating manpower.

[0004] However, the current roller replacement auxiliary device still has the following problems: 1) Before replacing the rollers, it is necessary to clean the surface of the conveyor belt, loosen the tension of the conveyor belt, and suspend the conveyor belt to make room for replacing the rollers; however, the current roller replacement auxiliary device only has mechanical support for the rollers, but does not have the suspension function for the conveyor belt. The suspension of the conveyor belt still requires human assistance or other lifting machinery assistance; 2) The mechanically assisted suspension conveyor belt is a rigid suspension. After the two sides of the conveyor belt are clamped, it is directly raised and lowered. During the suspension process, the conveyor belt always maintains tension. Under such a rigid clamping suspension, if the sharp part touches the upper conveyor belt during the roller replacement process, it is likely to cause tearing damage to the conveyor belt. Utility Model Content

[0005] The utility model provides a belt conveyor roller replacement device, which solves the problem that the current belt conveyor roller replacement device has a rigid suspension on the conveyor belt when replacing the roller, so that the conveyor belt is always tensioned without any remaining space for movement, and the conveyor belt is easily damaged if the roller hits the conveyor belt when replacing the roller.

[0006] The utility model adopts the following technical solutions to solve the above problems:

[0007] A belt conveyor roller replacement device comprises two groups of roller replacement units symmetrically arranged on both sides of the belt conveyor, the roller replacement unit comprises a chassis, a first base rod and a second base rod are parallelly arranged on the surface of the chassis, a retractable first lifting rod and a second lifting rod are respectively arranged at the upper ends of the first base rod and the second base rod, a length-adjustable pulling rope is connected to the upper end of the first lifting rod, a clamping plate is connected to the end of the pulling rope, and the second lifting rod is provided with a liftable roller moving rod.

[0008] Furthermore, a pulley is provided between the first lifting rod and the pulling cable, the pulling cable is coiled around the pulley, and a motor is connected to the hinged shaft at the axis of the pulley.

[0009] Furthermore, a plurality of limiting nail grooves are provided on the surfaces of the first lifting rod and the second lifting rod, and limiting bolts matching the limiting nail grooves are provided at the upper ends of the first base rod and the second base rod.

[0010] Furthermore, a universal shaft joint is provided at the connection between the pulling rope and the clamping plate, and anti-slip patterns are provided on the contact surface between the clamping plate and the belt.

[0011] Furthermore, a rectangular groove is provided inside the second lifting rod, and toothed roller cylinders are provided at the upper and lower ends of the rectangular groove respectively, and a toothed conveyor belt is meshedly provided outside the toothed roller cylinder.

[0012] Furthermore, the end of the roller moving rod is arranged on the outer surface of the toothed conveyor belt, and the axis of the toothed roller cylinder is connected to a power device.

[0013] Furthermore, the roller moving rod is an electrically controlled telescopic rod, and the free end of the telescopic rod can move forward and backward relative to the second lifting rod.

[0014] Furthermore, a roller shaft rod sleeve is provided at the free end of the roller moving rod, a square groove is opened inside the rear end of the roller shaft rod sleeve, and a fixing square is provided at the free end of the roller moving rod, and the fixing square is inserted into the square groove.

[0015] Furthermore, three slide rails are arranged on the upper surface of the chassis, and two sliding blocks are movably arranged on each slide rail, one in front and one in the back. The first base rod and the second base rod are arranged on the sliding block located on the middle slide rail surface, and diagonal support rods are arranged between the two side walls of the first base rod and the second base rod and the sliding blocks on the two side slide rail surfaces.

[0016] Further, one group of the chassis has an inner groove on the right side, a hook groove is provided on the right side of the inner groove and in the chassis, and another group of the chassis has a hook on the left side that matches the inner groove.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model provides a belt conveyor roller replacement device, in which the mechanisms for clamping the conveyor belt on both sides are connected by a soft pulling rope, which is retracted and released by a pulley, and the conveyor belt is suspended by the pulling rope, so that a soft suspension can be formed. During the suspension process, the conveyor belt has room for movement upward and a little room for movement on both sides. In this way, when replacing the roller, if the conveyor belt is pushed against the upper conveyor belt during the lifting process of the roller, the conveyor belt will not be easily broken and damaged under the tension because the conveyor belt is completely tensioned and there is no room for movement;

[0019] 2. The utility model solves the problem that the existing belt conveyor roller replacement device rigidly suspends the conveyor belt when replacing the roller, so that the conveyor belt is always tensioned without any remaining space for movement. If the roller is hit when replacing the roller, it is easy to be damaged;

[0020] 3. Equipped with a retractable first lifting rod and a second lifting rod, which can better adapt to the height of the belt conveyor;

[0021] 4. A universal shaft joint is provided at the connection between the pulling cable and the clamping plate, so that the clamping plate can rotate at a full angle relative to the pulling cable. In this way, when the clamping plate clamps the conveyor belt, the conveyor belt has a wider range of movement and more flexible movement;

[0022] 5. The contact surface between the clamping plate and the belt is provided with anti-slip texture, which can increase the friction between the clamping plate and the conveyor belt surface, make the clamping plate clamp the conveyor belt more stable, and avoid the clamping plate and the conveyor belt slipping;

[0023] 6. The roller moving rod is set as an electrically controlled telescopic rod. By controlling the extension and retraction of the roller moving rod, the distance between the ends of the two sets of roller moving rods can be adjusted without moving the chassis. The rollers are fixed between the roller moving rods. The roller moving rods lift the rollers to a suitable height. At this time, one roller moving rod extends and the other roller moving rod contracts, so that the rollers can be moved from the bottom of the conveyor belt to the outside of the conveyor belt, which is convenient for taking the rollers.

[0024] 7. The roller shaft rod sleeve is detachably set at one end of the roller moving rod. A variety of roller shaft rod sleeves of different models can be set. During operation, according to the shaft rod models on both sides of the roller to be replaced, the appropriate roller shaft rod sleeve can be selected and installed at the end of the roller moving rod. It is easy to operate and has a wide range of use.

[0025] 8. The chassis of the two sets of roller units can be placed in the inner groove through the hook, and then the chassis with the hook can be moved to the right so that the hook is stuck in the hook groove. In this way, the two chassis can be towed, which is convenient for transferring the two sets of roller replacement units. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present utility model, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of two sets of roller replacement units of the utility model;

[0028] Figure 2 It is a schematic diagram of the pulling rope and the clamping plate structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the roller moving rod of the utility model;

[0030] Figure 4 It is a schematic diagram of the toothed belt motor drive structure of the utility model;

[0031] Figure 5 It is a schematic diagram of the structure of the lifting structure toothed conveyor belt and the toothed roller cylinder of the utility model;

[0032] Figure 6 It is a schematic diagram of the installation structure of the roller moving rod and the roller shaft rod sleeve of the utility model;

[0033] Figure 7 It is a schematic diagram of a group of inner grooves and hook grooves in the connection structure of the two roller replacement units of the utility model;

[0034] Figure 8 This is a schematic diagram of another set of hook structures of the connection structure of the two roller replacement units of the utility model;

[0035] In the attached drawings, 1-chassis; 101-moving wheel; 102-inner groove; 103-hook groove; 104-hook; 2-slide rail; 3-slider; 4-first base rod; 401-diagonal support rod; 402-limiting bolt; 5-first lifting rod; 501-limiting nail groove; 6-pulley; 601-motor; 7-pulling cable; 701-universal shaft joint; 8-clamping plate; 9-second base rod; 10-second lifting rod; 11-roller moving rod; 1101-roller shaft rod sleeve; 1102-fixed block; 1103-block groove; 12-tooth conveyor belt; 1201-tooth roller cylinder; 1202-rotating wheel. DETAILED DESCRIPTION

[0036] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "top", "bottom", "longitudinal" and the like indicate orientations or state relationships based on the orientations or state relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication or connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Example 1

[0039] like Figure 1 , Figure 2 As shown, the utility model provides a belt conveyor roller replacement device, comprising two groups of roller replacement units symmetrically arranged on both sides of the belt conveyor, and the two groups of roller replacement units have the same structure; during operation, the two groups of roller replacement units need to be symmetrically placed on both sides of the belt conveyor, and the two groups of roller replacement units are respectively clamped on both sides of the conveyor belt of the belt conveyor to suspend the conveyor belt, and are fixed on both sides of the rollers to support and lift the damaged rollers and replace them with new ones; the roller replacement unit comprises a chassis 1, and a plurality of moving wheels 101 are provided at the bottom of the chassis 1 to facilitate the movement of the entire device; a first base rod 4 and a second base rod 9 are parallelly provided on the surface of the chassis 1, and a retractable first lifting rod 5 and a second lifting rod 10 are respectively provided at the upper ends of the first base rod 4 and the second base rod 9, and a length-adjustable pulling rope 7 is connected to the upper end of the first lifting rod 5, and a clamping plate 8 is connected to the end of the pulling rope 7, and a retractable roller moving rod 11 is provided on the second lifting rod 10.

[0040] The end of the first base rod 4 is telescopically provided with a first lifting rod 5 through a telescopic structure. Under the action of the telescopic structure, the first lifting rod 5 can be lifted and lowered on the first base rod 4. In this embodiment, the telescopic structure can be set as a structure in which a gear rotates to drive a rack. A rack is set on the first lifting rod 5, and a gear is correspondingly set in the first base rod 4 to control the rotation of the gear. The rack meshing with the gear is lifted and lowered under the drive of the gear, thereby driving the first lifting rod 5 to achieve a lifting effect.

[0041] The surfaces of the first lifting rod 5 and the second lifting rod 10 are both provided with a plurality of limiting nail grooves 501, and the first base rod 4 and the second base rod 9 are provided with limiting bolts 402 matching the limiting nail grooves 501 at the upper ends thereof, and a plurality of limiting nail grooves 501 are provided at equal intervals on the front and rear side surfaces of the first lifting rod 5; limiting bolts 402 are provided at the upper ends of the front and rear side surfaces of the first base rod 4, the limiting bolts 402 pass through the first base rod 4, and are threadedly matched with the threaded barrel provided on the outer side of the first base rod 4; by screwing the limiting bolts 402, The limiting bolt 402 moves toward the inside of the first base rod 4, and finally the end of the limiting bolt 402 can be inserted into the limiting nail groove 501; the ends of the limiting bolts 402 on both sides are inserted into the corresponding limiting nail grooves 501, and the first lifting rod 5 can be locked in position by using the limiting bolts 402; conversely, the limiting bolt 402 is screwed to move the limiting bolt 402 toward the outside of the first base rod 4, so that the end of the limiting bolt 402 is separated from the limiting nail groove 501. At this time, the first lifting rod 5 does not have any limiting locking structure and can be raised and lowered to adjust the height by itself. The height adjustment of the first lifting rod 5 is to adapt to the height of the belt conveyor itself.

[0042] A pulley 6 is provided between the first lifting rod 5 and the pulling cable 7. A pulley support is provided at the end of the first lifting rod 5. The axles on both sides of the pulley 6 are hinged on the two side walls inside the pulley support. The rotor of the motor 601 is connected to the hinged shaft at the axle center of the pulley 6 and fixed on one side outside the pulley support. The rotor of the motor 601 can drive the pulley 6 to rotate. The pulling cable 7 is wound around the pulley 6. A clamping plate 8 is connected to the end of the pulling cable 7. The clamping plates 8 on the two sets of roller replacement units are respectively clamped on both sides of the transmission belt of the belt conveyor roller to be repaired. The motor 601 drives the pulley 6 to rotate, and the pulling cable 7 is returned to the belt conveyor. In the process of recovery, the pulling rope 7 uses the clamping point as a fulcrum to gradually lift the conveyor belt; the pulling rope 7 is the main lifting structure. After the conveyor belt is lifted, there is room for the conveyor belt to move upward, and there is also a little room for movement on the left and right sides. In other words, the conveyor belt is not in a completely rigid clamping and lifting state. If the roller is replaced under the lifted conveyor belt, the roller hits the conveyor belt, and the conveyor belt has the ability to move upward accordingly, so that the conveyor belt will not be completely tensioned and fixed in position. When it is suddenly hit, the sharp structure may cause scratches to the conveyor belt.

[0043] In this embodiment, a universal shaft joint 701 is provided at the connection between the pulling cable 7 and the clamping plate 8. The universal shaft joint 701 allows the clamping plate 8 to rotate at a full angle relative to the pulling cable 7. In this way, when the clamping plate 8 clamps the conveyor belt, the conveyor belt has a wider range of movement and a more flexible range of movement. The contact surface between the clamping plate 8 and the belt is provided with anti-slip grooves, which can increase the friction between the clamping plate 8 and the surface of the conveyor belt, making the clamping plate 8 clamp the conveyor belt more stably and preventing the clamping plate 8 from slipping off the conveyor belt.

[0044] The second base rod 9 is arranged on the front side of the first base rod 4, and the end of the second base rod 9 is provided with a second lifting rod 10 through a telescopic structure, so that the second lifting rod 10 can achieve a lifting effect relative to the second base rod 9, and the lifting structure here is the same as the lifting structure of the first lifting rod 5 mentioned above; a roller moving rod 11 is arranged on the second lifting rod 10, and the roller moving rods 11 on the two groups of roller replacement units are respectively clamped on the shaft rods on both sides of the rollers to be replaced, and then the roller moving rods 11 are lifted and lowered to support and lift the rollers. After the rollers to be repaired are lifted, the damaged rollers are taken out, and then the new rollers are placed between the two roller moving rods 11, and the roller moving rods 11 are lowered, and the new rollers are put back to their original positions to complete the replacement and installation.

[0045] The roller moving rod 11 can be raised and lowered on the second lifting rod 10, and its lifting control structure is set to cooperate with a gear and a rack. A rack is set in the second lifting rod 10, and the tooth surface on the back side of the rack is meshed with the gear. The rotation of the gear can drive the rack to rise and fall. The front side of the rack is connected to the roller moving rod 11, and the lifting of the rack can drive the roller moving rod 11 to rise and fall.

[0046] Example 2

[0047] like Figure 4 , Figure 5 As shown, a rectangular groove is provided inside the second lifting rod 10, and toothed roller cylinders 1201 are provided at the upper and lower ends of the rectangular groove respectively, and a toothed conveyor belt 12 is meshed on the outside of the toothed roller cylinder 1201. Other technical features are the same as those of Example 1.

[0048] Based on Example 1, the structure for controlling the lifting and lowering of the roller moving rod 11 in this embodiment is configured as the cooperation between a toothed conveyor belt and a toothed roller cylinder, a rectangular vacant groove space is opened inside the second lifting rod 10, a toothed roller cylinder 1201 is arranged in the upper and lower parts of the rectangular vacant groove, and both ends of the toothed roller cylinder 1201 are rotatably arranged on the side walls of the vacant groove space; a toothed conveyor belt 12 is arranged on the two toothed roller cylinders 1201, a tooth structure is arranged on the inner side of the toothed conveyor belt 12, and a tooth structure is arranged on the outer peripheral surface of the toothed roller cylinder 1201; the contact part between the toothed conveyor belt 12 and the toothed roller cylinder 1201 is engaged by teeth, and the tail end of the roller moving rod 11 is arranged on the outer surface of the toothed conveyor belt 12.

[0049] The axis of the tooth roller cylinder 1201 is connected with a power device, which can be a manual device, such as Figure 3 As shown, the gear roller cylinder 1201 is controlled by the rotating wheel 1202. The rotating wheel 1202 is manually rotated to drive the gear roller cylinder 1201 to rotate; the power device can also be an electric device, such as Figure 4 As shown, a motor 601 is arranged outside the second lifting rod 10. In this embodiment, the rotor of the motor 601 is connected to the axis of the toothed roller cylinder 1201 located above. The motor 601 drives the toothed roller cylinder 1201 above to rotate, and the toothed roller cylinder 1201 drives the toothed conveyor belt 12 to transmit, and the toothed conveyor belt 12 drives the roller moving rod 11 to achieve lifting and lowering, thereby completing the lifting or lowering of the roller.

[0050] Example 3

[0051] like Figure 3 As shown, the roller moving rod 11 adopts an electrically controlled telescopic rod, and the free end of the telescopic rod can move forward and backward relative to the second lifting rod 10. Other technical features are the same as those of embodiment 1 or 2.

[0052] Based on Example 1 or Example 2, in the above two embodiments, the roller moving rod 11 is a rod with a fixed length, which can only realize the lifting of the roller in the vertical direction. Since the roller is located below the lifted conveyor belt, when removing the old roller, the line of sight is inevitably blocked by the conveyor belt, and the conveyor belt will also hinder the operation; the spacing between the ends of the two sets of roller moving rods 11 is also fixed. The size of the belt conveyor is different, and the length of the roller is also different. If you want to adjust the spacing between the ends of the two sets of roller moving rods 11, you can only move it together with the chassis 1, which is more troublesome.

[0053] In this embodiment, the roller moving rod 11 is set as an electrically controlled telescopic rod. By controlling the extension and retraction of the roller moving rod 11, the distance between the ends of the two sets of roller moving rods 11 can be adjusted without moving the chassis 1. The rollers are fixed between the roller moving rods 11, and the roller moving rods 11 lift the rollers to a suitable height. At this time, one roller moving rod 11 extends and the other roller moving rod 11 contracts, so that the rollers can be moved from under the conveyor belt to the outside of the conveyor belt, making it convenient to take the rollers.

[0054] Example 4

[0055] like Figure 6 As shown, a roller shaft rod sleeve 1011 is provided at the free end of the roller moving rod 11, a square groove 1103 is opened inside the rear end of the roller shaft rod sleeve 1011, and a fixing square 1102 is provided at the free end of the roller moving rod 11, and the fixing square 1102 is inserted into the square groove 1103. Other technical features are the same as those of Examples 1 to 3.

[0056] Based on Example 1 to Example 3, in the above three embodiments, the end of the roller moving rod 11 is fixed to the roller by setting a roller shaft sleeve 1101, and the roller shaft sleeve 1101 is sleeved on the shaft at the center of both sides of the roller, so as to realize the fixation of the roller by the roller moving rod 11, but the shaft models on both sides of the rollers on different belt conveyors may be different, and the roller shaft sleeve 1101 is fixedly connected to the end of the roller moving rod 11, which will limit the rollers that the roller moving rod 11 can be applied to.

[0057] In the present embodiment, a square groove 1103 is opened inside the rear end of the roller shaft rod sleeve 1101, and a fixing block 1102 is set at the head end of the roller moving rod 11; the fixing block 1102 is placed in the square groove 1103, and the roller shaft rod sleeve 1101 can be detachably set at the head end of the roller moving rod 11. By setting a variety of different types of roller shaft rod sleeves 1101, during operation, the appropriate roller shaft rod sleeve 1101 can be selected according to the shaft model of both sides of the roller to be replaced and installed on the end of the roller moving rod 11.

[0058] Example 5

[0059] like Figure 1 , Figure 7 , Figure 8 As shown, three slide rails 2 are arranged on the upper surface of the chassis 1, and two sliders 3 are movably arranged on each slide rail 2, one in front and one in the back. The first base rod 4 and the second base rod 9 are arranged on the slider 3 on the surface of the middle slide rail 2, and diagonal support rods 401 are arranged between the two side walls of the first base rod 4 and the second base rod 9 and the sliders 3 on the surface of the slide rails 2 on both sides. Other technical features are the same as those in Example 1.

[0060] Based on Example 1, after determining the position of the chassis 1, it may be necessary to adjust the positions of the first base rod 4 and the second base rod 9 on the two sets of roller replacement units according to the width of the belt conveyor so that they are at the spacing width that is most convenient for operation. However, adjusting the first base rod 4 and the second base rod 9 of the two sets of roller replacement units requires moving the chassis 1.

[0061] In this embodiment, three slide rails 2 are arranged on the upper surface of the chassis 1, and two sliders 3 are movably arranged on each slide rail 2, one in front and one in the back; the first base rod 4 and the second base rod 9 are respectively arranged on the two sliders 3 on the middle slide rail 2; the lower ends of the diagonal bracing rods 401 on the first base rod 4 are arranged on the sliders 3 on both sides of the first base rod 4; the lower ends of the diagonal bracing rods 401 on the second base rod 9 are arranged on the sliders on both sides of the second base rod 9. In this way, without moving the chassis 1, it is only necessary to move the first base rod 4 or the second base rod 9 on the slide rail 2 to achieve the adjustment of the spacing between the first base rod 4 and the second base rod 9 on the two groups of roller replacement units.

[0062] Example 6

[0063] like Figure 7 , Figure 8As shown, an inner groove 102 is provided on the right side surface of one group of chassis 1, and a hook groove 103 is provided on the right side of the inner groove 102 and located inside the chassis 1. A hook 104 cooperating with the inner groove 102 is provided on the left side surface of another group of chassis 1. Other technical features are the same as those of Example 1.

[0064] Based on Example 1, an inner groove 102 is opened on the right side surface of one group of roller replacement unit chassis 1, and a hook groove 103 is opened on the right side of the inner groove 102 and inside the chassis 1; a hook 104 is set on the left side surface of the other group of roller replacement unit chassis 1; the two groups of roller unit chassis 1 are brought close to each other, so that the hook 104 is first placed in the inner groove 102, and then the chassis 1 with the hook 104 is moved to the right side so that the hook 104 is stuck in the hook groove 103, so that the two chassis 1 can be towed, and the two groups of roller replacement units can be transferred more conveniently by rotating the moving wheel 101.

[0065] The above embodiments are used to describe the present invention in detail, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of application of the present invention shall still fall within the scope of the patent coverage of the present invention.

Claims

1. A belt conveyor roller replacement device, characterized in that: The invention comprises two groups of roller replacement units symmetrically arranged on both sides of a belt conveyor, wherein the roller replacement unit comprises a chassis (1), a first base rod (4) and a second base rod (9) are arranged in parallel on the surface of the chassis (1), the upper ends of the first base rod (4) and the second base rod (9) are respectively provided with a retractable first lifting rod (5) and a second lifting rod (10), the upper end of the first lifting rod (5) is connected to a length-adjustable pulling rope (7), the end of the pulling rope (7) is connected to a clamping plate (8), and the second lifting rod (10) is provided with a retractable roller moving rod (11).

2. The belt conveyor roller replacement device according to claim 1, characterized in that: A pulley (6) is provided between the first lifting rod (5) and the pulling cable (7), the pulling cable (7) is coiled around the pulley (6), and a motor (601) is connected to a hinged shaft at the axis of the pulley (6).

3. The belt conveyor roller replacement device according to claim 1, characterized in that: The surfaces of the first lifting rod (5) and the second lifting rod (10) are both provided with a plurality of limit nail grooves (501), and the first base rod (4) and the second base rod (9) are provided with limit bolts (402) matching the limit nail grooves (501) at their upper ends.

4. The belt conveyor roller replacement device according to claim 1, characterized in that: A universal shaft joint (701) is provided at the connection between the pulling rope (7) and the clamping plate (8), and anti-slip patterns are provided on the contact surface between the clamping plate (8) and the belt.

5. A belt conveyor roller replacement device according to any one of claims 1 to 4, characterized in that: A rectangular groove is provided inside the second lifting rod (10), and toothed roller cylinders (1201) are respectively provided at the upper and lower ends of the rectangular groove, and a toothed conveyor belt (12) is meshedly provided outside the toothed roller cylinder (1201).

6. The belt conveyor roller replacement device according to claim 5, characterized in that: The end of the roller transfer rod (11) is arranged on the outer surface of the toothed conveyor belt (12), and the axis of the toothed roller cylinder (1201) is connected to a power device.

7. A belt conveyor roller replacement device according to any one of claims 1 to 4, characterized in that: The roller moving rod (11) is an electrically controlled telescopic rod, and the free end of the telescopic rod can move forward and backward relative to the second lifting rod (10).

8. A belt conveyor roller replacement device according to any one of claims 1 to 4, characterized in that: The free end of the roller moving rod (11) is provided with a roller shaft rod sleeve (1011), the rear end of the roller shaft rod sleeve (1011) is provided with a square groove (1103), the free end of the roller moving rod (11) is provided with a fixing square block (1102), and the fixing square block (1102) is inserted into the square groove (1103).

9. A belt conveyor roller replacement device according to any one of claims 1 to 4, characterized in that: Three slide rails (2) are arranged on the upper surface of the chassis (1), and two sliders (3) are movably arranged on each of the slide rails (2), one in front of the other. The first base rod (4) and the second base rod (9) are arranged on the slider (3) on the surface of the middle slide rail (2), and diagonal support rods (401) are arranged between the two side walls of the first base rod (4) and the second base rod (9) and the sliders (3) on the surfaces of the two side slide rails (2).

10. A belt conveyor roller replacement device according to any one of claims 1 to 4, characterized in that: An inner groove (102) is provided on the right side surface of one group of the chassis (1), a hook groove (103) is provided on the right side of the inner groove (102) and located inside the chassis (1), and a hook (104) matching the inner groove (102) is provided on the left side surface of another group of the chassis (1).

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