Anti-impact carrier roller

Abstract

The utility model relates to the technical field of conveying equipment, in particular to an anti-impact carrier roller which comprises an installation frame and a horizontal roller, the two ends of the horizontal roller are installed on the installation frame through rotating shafts, the carrier roller further comprises a fixing frame, a plurality of guide rods, a first spring, a buffer and an adjuster, the fixing frame is arranged under the installation frame, and the guide rods are arranged at the bottom of the installation frame. A guide hole corresponding to the guide rod in position and size is formed in the fixing frame, the guide rod is inserted into the guide hole, and the first spring is arranged on the guide rod between the fixing frame and the mounting frame; the buffers are arranged on the top face of the fixing frame, the buffers are symmetrically arranged at the four corners or the two ends of the fixing frame respectively, and the buffers are connected with the adjusters. According to the anti-impact carrier roller, the anti-impact capacity can be conveniently adjusted, and the anti-impact carrier roller can be suitable for working environments with different impact strengths; the impact recovery process is mild, and the situation of material splashing is avoided; the attaching degree of the carrier roller and the conveying belt can be enhanced through impact, and normal work of the conveying belt is better facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to an impact-resistant roller. Background Art

[0002] The rollers of belt conveyors are used to drive or support the conveyor belts. In material transportation scenarios such as coal washing plants, coking plants, and chemical plants, the rollers also need to resist the impact of falling materials on the conveyor belts. Traditional rollers are made of polymer materials as a whole. When the rollers at the falling part of the conveyor are hit hard, the rollers will bend. When the impact is small, the rollers will bend less, the falling materials will rebound significantly, and the falling materials will easily splash.

[0003] To this end, in the prior art, the invention patent with the authorization announcement number CN113460607B discloses a buffer type roller, comprising a bearing rod shaft, a roller group and two end connection seats, the two end connection seats are arranged at the two ends of the bearing rod shaft and are used to bear the roller group; the roller group is composed of a plurality of supporting roller assemblies distributed in an annular pattern, each supporting roller assembly comprises a roller body, an airbag cover and a booster connector, the airbag cover is arranged on the roller body and can achieve a buffering effect through air pressure; the booster connector is arranged on the end connection seat and slides annularly thereon, and two adjacent booster connectors are connected by an elastic member; the booster connector is also connected to the airbag cover, and can shrink when under pressure and squeeze the internal airflow into the airbag cover. The load-bearing buffer is achieved by the elastic movement of the end of the roller body and the change of the internal air pressure of the airbag cover caused by the impact of heavy objects, so that the buffering performance and the buffering impact range can be improved.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art: 1. In the patented technology, load-bearing buffering is achieved by changing the air pressure inside the airbag cover. However, the initial air pressure inside the airbag cover is unique and can only cope with a working environment with a certain impact intensity. It cannot be adjusted in time and has a small scope of application; 2. Gas buffering has a fast rebound speed and is prone to material splashing; 3. When the supporting roller assembly 3 in the patented technology is subjected to great pressure, the position of the supporting roller assembly 3 will change, resulting in a gap between the roller and the conveyor belt, which may easily cause the conveyor belt to slip or even stop working, affecting the normal progress of the conveying work. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model develops an impact-resistant roller, which can conveniently adjust the impact resistance and can be applied to working environments with different impact intensities; the impact recovery process is gentle and material splashing will not occur; the impact will enhance the fit between the roller and the conveyor belt, which is more conducive to the normal operation of the conveyor belt.

[0006] The technical solution to the technical problem solved by the utility model is as follows: an embodiment of the utility model provides an impact-resistant roller for supporting and driving a conveyor belt, comprising a mounting frame and a horizontal roller, wherein both ends of the horizontal roller are mounted on the mounting frame through a rotating shaft, the impact-resistant roller also comprises a fixed frame, a guide rod, a spring, a buffer, and an adjuster, wherein the fixed frame is arranged directly below the mounting frame, a plurality of guide rods are arranged at the bottom of the mounting frame, the fixed frame is provided with guide holes corresponding to the positions and sizes of the guide rods, the guide rods are inserted into the guide holes, a spring is arranged on the guide rod between the fixed frame and the mounting frame; the buffer is arranged on the top surface of the fixed frame, and a group of buffers are symmetrically arranged at the four corners or both ends of the fixed frame, and each buffer is connected to the adjuster.

[0007] As an optimization, the impact-resistant roller also includes side rollers, and one side roller is obliquely arranged at both ends of the horizontal roller, and both ends of the side roller are installed on the mounting frame through a rotating shaft.

[0008] As an optimization, two parallel horizontal rollers are provided, and the side roller is provided between the two horizontal rollers.

[0009] As an optimization, the lengths of the buffers are arranged in at least two groups from high to low.

[0010] As an optimization, the buffer includes a sleeve, a piston, a spring, a piston rod, a top, and an end cover. The sleeve is a cylindrical shape with one end open. An oil port is provided at the bottom of the sleeve, and an end cover is provided at the opening of the sleeve. One end of the piston rod is connected to the top and the other end is connected to the piston. The piston is installed in the sleeve, and the piston rod passes through the end cover. The spring is arranged on the piston rod between the end cover and the top, and the sleeve below the piston is filled with hydraulic oil.

[0011] As an optimization, the regulator includes sleeve two, piston two, spring three, pressure plate, adjusting rod, turntable and end cover two. Sleeve two is a cylinder with one end open. An oil port two is arranged at the bottom of sleeve two, and an end cover two is arranged at the opening of sleeve two. A threaded hole is arranged at the center of end cover two. One end of the adjusting rod is connected to the pressure plate and the other end is connected to the turntable. The surface of the adjusting rod is provided with an external thread. The adjusting rod passes through the threaded hole in the center of end cover two. The pressure plate and piston two are arranged in sleeve two. The piston two fits the inner wall of sleeve two. The pressure plate is arranged between piston two and end cover two. A spring three is arranged between the pressure plate and piston two. Sleeve two below piston two is filled with hydraulic oil, and the oil ports one of each buffer are collected and connected to oil port two.

[0012] As an optimization, a sleeve is arranged on the top surface of the piston 2, a sleeve is arranged on the bottom surface of the pressure plate, the sleeve is inserted into the sleeve, and the spring 3 is sleeved on the sleeve and the sleeve.

[0013] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0014] 1. When in use, at least two rollers are respectively set at the two ends of the circular conveyor belt. The horizontal rollers at both ends tighten the conveyor belt. The rotating shaft of one of the horizontal rollers is connected to the motor. When the motor is started, the horizontal roller can drive the conveyor belt to move. When the material is poured onto the conveyor belt, it can move with the conveyor belt to realize the transportation of the material. When the material falls to the end of the conveyor belt, it will impact the conveyor belt and then impact the horizontal roller. At this time, the spring 1 and the buffer are compressed to form a buffer. After the impact is reduced or disappears, the mounting frame and the horizontal roller will recover under the action of the spring 1. At the same time, they are affected by the buffer. The buffer is provided with hydraulic oil, and it recovers under the action of the spring and hydraulic oil. The recovery process is gentle and there will be no material splashing. The impact will cause the height of the horizontal roller in one of the rollers to drop, resulting in an increase in the distance between the two horizontal rollers, thereby strengthening the fit between the horizontal roller and the conveyor belt, which is more conducive to the normal operation of the conveyor belt.

[0015] 2. By setting the side rollers, the side rollers and the horizontal rollers form a concave surface. When the conveyor belt is installed on the side rollers and the horizontal rollers, a concave conveying surface is also formed, which can reduce the scattering of materials.

[0016] 3. By setting up a structure in which two horizontal rollers clamp the side rollers, the working surfaces of the horizontal rollers and the side rollers can be closely connected in the conveying direction, thereby achieving all-round support for the conveyor belt and improving the impact resistance of the conveyor belt.

[0017] 4. By setting the length of the buffer from high to low in at least two groups, when the impact force is small, the buffer with the highest length will act. As the impact force increases, the number of buffers that act also increases, thereby improving the effectiveness of the buffer action response.

[0018] 5. By rotating the turntable, the length of the adjusting rod into the end cover 2 can be controlled, thereby adjusting the distance between the pressure plate and the piston 2, and the length of the spring 3, so as to adjust the hydraulic oil pressure in the sleeve 2. The greater the compression of the spring 3, the greater the hydraulic oil pressure in the sleeve 2, and the greater the impact strength that the buffer can resist. The impact-resistant roller can conveniently adjust the impact resistance and can be applied to working environments with different impact strengths.

[0019] 6. A sleeve is arranged on the top surface of the piston 2, and a sleeve is arranged on the bottom surface of the pressure plate. The sleeve is inserted into the sleeve, and the spring 3 is sleeved on the sleeve and the sleeve. The sleeve and the sleeve are both in the shape of a round tube, and the outer diameter of the sleeve is smaller than the inner diameter of the sleeve. By arranging the sleeve and the sleeve, the spring 3 can be guided to avoid the two ends of the spring 3 being out of contact with the pressure plate and the piston 2 when the compression amount of the spring 3 is too large. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model.

[0021] Figure 2 The utility model is a top view of an embodiment.

[0022] Figure 3 This is a front view of an embodiment of the utility model.

[0023] Figure 4 It is a left view of an embodiment of the utility model.

[0024] Figure 5 for Figure 1 A partial enlarged view of the D area in the middle.

[0025] Figure 6 for Figure 4 A partial enlarged view of the middle C area.

[0026] Figure 7 This is a front view of a buffer in an embodiment of the utility model.

[0027] Figure 8 for Figure 6 Cross-sectional view along direction BB.

[0028] Fig. 9 This is a front view of a regulator in one embodiment of the utility model.

[0029] Fig.10 for Figure 8 Cross-sectional view along the AA direction.

[0030] Fig.11 It is a stereoscopic diagram of a regulator in one embodiment of the utility model.

[0031] Among them: fixed frame 1, mounting frame 2, horizontal roller 3, side roller 4, guide rod 5, spring 1 6, buffer 7, regulator 8, sleeve 1 71, piston 1 72, oil port 1 73, spring 2 74, piston rod 75, top head 76, end cover 1 77, sleeve 2 81, piston 2 82, spring 3 83, pressure plate 84, oil port 2 85, adjusting rod 86, turntable 87, end cover 2 88. DETAILED DESCRIPTION

[0032] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0033] Figures 1 to 11 An embodiment of the present utility model is as follows: Figure 1As shown, an impact-resistant roller is used to support and drive a conveyor belt, comprising a mounting frame 2 and a horizontal roller 3. Both ends of the horizontal roller 3 are mounted on the mounting frame 2 through a rotating shaft. The impact-resistant roller also includes a fixed frame 1, a guide rod 5, a spring 6, a buffer 7, and an adjuster 8. The fixed frame 1 is arranged directly below the mounting frame 2. A plurality of guide rods 5 are arranged at the bottom of the mounting frame 2. The fixed frame 1 is provided with guide holes corresponding to the position and size of the guide rods 5. The guide rods 5 are inserted into the guide holes. The spring 6 is arranged on the guide rods 5 between the fixed frame 1 and the mounting frame 2. The buffer 7 is arranged on the top surface of the fixed frame 1. The buffer 7 is arranged in a group at the four corners of the fixed frame 1. Each buffer 7 is connected to the adjuster 8. The impact-resistant roller also includes a side roller 4. One side roller 4 is arranged obliquely at both ends of the horizontal roller 3. Both ends of the side roller 4 are mounted on the mounting frame 2 through a rotating shaft. By arranging the side roller 4, the side roller 4 and the horizontal roller 3 form a concave surface. When the conveyor belt is installed on the side roller 4 and the horizontal roller 3, a concave conveying surface is also formed, which can reduce the scattering of materials. The horizontal rollers 3 are arranged in parallel with each other, and the side roller 4 is arranged between the two horizontal rollers 3. By arranging a structure in which the two horizontal rollers 3 clamp the side roller 4, the working surfaces of the horizontal rollers 3 and the side rollers 4 can be closely connected in the conveying direction, so as to realize all-round support for the conveyor belt and improve the impact resistance of the conveyor belt. Figure 4 , Figure 5 As shown, the two groups of buffers 7 are symmetrically distributed.

[0034] like Figure 5 , Figure 6 As shown, the lengths of the buffers 7 are set in three groups from high to low. By setting the lengths of the buffers 7 in three groups from high to low, when the impact force is small, the buffers 7 in the group with the highest length are actuated, and as the impact force increases, the number of the actuated buffers 7 also increases, thereby improving the effectiveness of the buffer action response.

[0035] like Figure 8 As shown, the buffer 7 includes a sleeve 71, a piston 72, a spring 74, a piston rod 75, a top head 76, and an end cover 77. The sleeve 71 is a cylindrical shape with one end open. An oil port 73 is provided at the bottom of the sleeve 71, and an end cover 77 is provided at the opening of the sleeve 71. One end of the piston rod 75 is connected to the top head 76 and the other end is connected to the piston 72. The piston 72 is installed in the sleeve 71, and the piston rod 75 passes through the end cover 77. The spring 74 is arranged on the piston rod 75 between the end cover 77 and the top head 76. The sleeve 71 below the piston 72 is filled with hydraulic oil.

[0036] like Fig.10As shown, the regulator 8 includes a sleeve 81, a piston 82, a spring 83, a pressure plate 84, an adjusting rod 86, a rotating disk 87, and an end cover 88. The sleeve 81 is a cylindrical shape with one end open. An oil port 85 is provided at the bottom of the sleeve 81. An end cover 88 is provided at the opening of the sleeve 81. A threaded hole is provided at the center of the end cover 88. One end of the adjusting rod 86 is connected to the pressure plate 84 and the other end is connected to the rotating disk 87. The surface of the adjusting rod 86 is provided with an external thread. The adjusting rod 86 passes through the threaded hole in the center of the end cover 88. The pressure plate 84 and the piston 82 are arranged in the sleeve 81. The piston 82 fits the inner wall of the sleeve 81. The pressure plate 84 is arranged between the piston 82 and the end cover 88. A spring 83 is provided between the pressure plate 84 and the piston 82. The sleeve 81 below the piston 82 is filled with hydraulic oil. The oil ports 73 of each buffer 7 are collected and connected to the oil port 85. By rotating the turntable 87, the length of the adjusting rod 86 rotating into the end cover 2 88 can be controlled, thereby adjusting the distance between the pressure plate 84 and the piston 2 82, and the length of the spring 3 83, so as to adjust the hydraulic oil pressure in the sleeve 2 81. The greater the compression of the spring 3 83, the greater the hydraulic oil pressure in the sleeve 2 81, and the greater the impact strength that the buffer 7 can resist. The impact-resistant roller can be conveniently adjusted to resist impact and can be applied to working environments with different impact strengths. A sleeve is provided on the top surface of the piston 2 82, and a sleeve is provided on the bottom surface of the pressure plate 84. The sleeve is inserted into the sleeve, and the spring 3 83 is sleeved on the sleeve and the sleeve. The sleeve and the sleeve are both in the shape of a circular tube, and the outer diameter of the sleeve is smaller than the inner diameter of the sleeve. By providing the sleeve and the sleeve, the spring 3 83 can be guided to avoid the two ends of the spring 3 83 from being out of contact with the pressure plate 84 and the piston 2 82 when the compression of the spring 3 83 is too large.

[0037] When in use, at least two rollers are respectively arranged at the two ends of the annular conveyor belt, and the horizontal rollers 3 at the two ends tighten the conveyor belt. The rotating shaft of one of the horizontal rollers 3 is connected to the motor. When the motor is started, the horizontal roller 3 can drive the conveyor belt to move. When the material is poured onto the conveyor belt, it can move with the conveyor belt to realize the conveying of the material. When the material falls to the end of the conveyor belt, it will impact the conveyor belt and then impact the horizontal roller 3. At this time, the spring 16 and the buffer 7 are compressed to form a buffer. After the impact is reduced or disappears, the mounting frame 2 and the horizontal roller 3 will recover under the action of the spring 16, and at the same time, they are affected by the buffer 7. The buffer 7 is provided with hydraulic oil, and they recover under the action of the spring and hydraulic oil. The recovery process is gentle and there will be no material splashing. The impact will cause the height of the horizontal roller 3 in one of the rollers to drop, resulting in an increase in the distance between the two horizontal rollers 3, thereby strengthening the fit between the horizontal roller 3 and the conveyor belt, which is more conducive to the normal operation of the conveyor belt.

[0038] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. An impact-resistant roller for supporting and driving a conveyor belt, comprising a mounting frame (2) and a horizontal roller (3), wherein both ends of the horizontal roller (3) are mounted on the mounting frame (2) via a rotating shaft, and wherein: The impact-resistant roller further comprises a fixed frame (1), a guide rod (5), a spring (6), a buffer (7), and an adjuster (8); the fixed frame (1) is arranged directly below the mounting frame (2); a plurality of guide rods (5) are arranged at the bottom of the mounting frame (2); a guide hole corresponding to the position and size of the guide rod (5) is arranged on the fixed frame (1); the guide rod (5) is inserted into the guide hole; the spring (6) is arranged on the guide rod (5) between the fixed frame (1) and the mounting frame (2); the buffer (7) is arranged on the top surface of the fixed frame (1); a group of buffers (7) are symmetrically arranged at the four corners or both ends of the fixed frame (1); and each buffer (7) is connected to the adjuster (8).

2. The impact-resistant roller according to claim 1, characterized in that: The impact-resistant roller further comprises a side roller (4), one side roller (4) being obliquely arranged at each end of the horizontal roller (3), and both ends of the side roller (4) are mounted on the mounting frame (2) via a rotating shaft.

3. The impact-resistant roller according to claim 2, characterized in that: Two parallel horizontal rollers (3) are provided, and a side roller (4) is provided between the two horizontal rollers (3).

4. The impact-resistant roller according to claim 1, characterized in that: The lengths of the buffers (7) are arranged in at least two groups from high to low.

5. The impact-resistant roller according to claim 1, characterized in that: The buffer (7) comprises a sleeve (71), a piston (72), a spring (74), a piston rod (75), a top head (76), and an end cover (77). The sleeve (71) is cylindrical with one end open. An oil port (73) is provided at the bottom of the sleeve (71). An end cover (77) is provided at the opening of the sleeve (71). One end of the piston rod (75) is connected to the top head (76) and the other end is connected to the piston (72). The piston (72) is installed in the sleeve (71). The piston rod (75) passes through the end cover (77). The spring (74) is arranged on the piston rod (75) between the end cover (77) and the top head (76). The sleeve (71) below the piston (72) is filled with hydraulic oil.

6. The impact-resistant roller according to claim 5, characterized in that: The regulator (8) comprises a second sleeve (81), a second piston (82), a third spring (83), a pressure plate (84), an adjusting rod (86), a rotating disk (87), and a second end cover (88). The second sleeve (81) is a cylindrical shape with an opening at one end. The bottom of the second sleeve (81) is provided with a second oil port (85). The opening of the second sleeve (81) is provided with a second end cover (88). The center of the second end cover (88) is provided with a threaded hole. One end of the adjusting rod (86) is connected to the pressure plate (84) and the other end is connected to the rotating disk (87). The surface of the adjusting rod (86) is provided with a threaded hole. An external thread is provided, and an adjusting rod (86) passes through a threaded hole in the center of the second end cover (88). A pressure plate (84) and a second piston (82) are arranged in the second sleeve (81). The second piston (82) is fitted with the inner wall of the second sleeve (81). The pressure plate (84) is arranged between the second piston (82) and the second end cover (88). A spring (83) is arranged between the pressure plate (84) and the second piston (82). The second sleeve (81) below the second piston (82) is filled with hydraulic oil, and the oil ports (73) of each buffer (7) are collected and connected to the oil port (85).

7. The impact-resistant roller according to claim 6, characterized in that: The top surface of the second piston (82) is provided with a sleeve, the bottom surface of the pressure plate (84) is provided with a sleeve, the sleeve is inserted into the sleeve, and the third spring (83) is sleeved on the sleeve and the sleeve.

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