Follow-up deviation rectifying carrier roller set

Abstract

The invention provides a follow-up type deviation rectifying carrier roller set, and relates to the field of material transportation, the follow-up type deviation rectifying carrier roller set comprises a base, a carrier roller assembly, a connecting piece and a cross rod, the carrier roller assembly comprises a support, an upper cross beam, a first lower cross beam, a second lower cross beam, a middle carrier roller and a side carrier roller, the carrier roller assembly is connected with the base through a bearing, and the connecting piece is connected with the cross rod; the assembling mode of the bearing seats and the bearings ensures that the shafts are flexible and free of jamming in the operation process, meanwhile, the stress condition of the shafts is improved, and according to the characteristics of the two bearings, it is better ensured that the bearings can bear pressure of materials and a conveying belt and can also bear alternating loads formed by centripetal force and the like generated by rotation of the side rollers. Meanwhile, the bearing seats are filled with lubricating grease, and the sealing covers are adopted, so that the bearings are prevented from being stuck, and the service life of the deviation adjusting carrier roller set is prolonged.

Description

Technical Field

[0001] The present application relates to the field of material transportation, and in particular to a follow-up deviation-correcting roller group. Background Art

[0002] As an important continuous conveying equipment in coal mines, conveyor belt deviation is inevitable due to factors such as manufacturing, installation, improper joints, and uneven incoming materials. At present, there are many ways to correct the deviation of belt conveyors. The most common and effective way is to use self-aligning rollers. The structures of self-aligning rollers are diverse, and the deviation adjustment methods are also different, but the working principles are roughly the same, that is, when the conveyor belt deviates, the self-aligning roller group is driven to deflect, so that the rollers generate a friction force that restores the conveyor belt to a balanced position, thereby achieving the purpose of conveyor belt deviation correction. Commonly used self-aligning rollers include TD75 grooved self-aligning rollers, DTⅡ friction self-aligning rollers, and conical self-aligning rollers. These self-aligning rollers have their own advantages and disadvantages.

[0003] The working principle of TD75 grooved self-aligning rollers: when the deviation is small, the rollers on the deviation side rotate at a smaller angle, and the lateral thrust on the conveyor belt is also smaller; when the deviation is large, the rollers on the deviation side rotate at a larger angle, and the lateral thrust on the conveyor belt is also larger. In this way, automatic adjustment of different deviation amounts is achieved. Another function of the retaining roller is to directly prevent and limit the deviation of the conveyor belt in the case of serious deviation. Under the joint action of the self-aligning rollers, the conveyor belt is gradually aligned and runs without the conveyor belt running out of the frame.

[0004] Its disadvantages are: the conveyor belt deviation range is not too large, and the grooved deviation adjustment roller can be used for automatic adjustment. However, due to the weak strength of the upper beam, the upper beam will bend and deform when the transport volume is large, affecting the automatic centering effect; the rotating shaft and the base are slidingly matched, and no bearings are installed, resulting in large friction resistance. In addition, the intrusion of dust and water can easily cause jamming and rust, resulting in inflexible rotation.

[0005] The working principle of DTⅡ friction self-aligning rollers: the middle roller and friction roller are installed on the upper beam, the lower beam is installed on the middle frame, and the upper and lower beams are connected together through a rotary shaft (the roller frame structure is similar to the groove-shaped self-aligning roller frame). After the conveyor belt deviates, it drives the upper beam to rotate a certain angle, and the friction roller applies a lateral thrust to the belt to restore the conveyor belt to its original position after the deviation. Its characteristic is that a friction disk is added at one end of the two side rollers. When the conveyor belt contacts the friction disk after deviation, the friction force increases due to the large rotation resistance of the friction disk, which increases the lateral thrust applied by the roller to the conveyor belt and enhances the deviation adjustment effect.

[0006] Its disadvantages are: since the upper beam of the friction self-aligning roller is connected to the lower beam through a rotating shaft, it also has poor rotation in actual operation (the reason is the same as that of the grooved self-aligning roller). In addition, the friction force of the friction disc is adjusted by a spring. Due to the existence of various errors in manufacturing and assembly, the use effect of the friction disc is not ideal, thus losing the advantages of the friction disc.

[0007] Working principle of DTⅡ conical self-aligning roller: its two conical rollers are respectively installed on their respective rotating shafts, and the two rotating frames are rotated synchronously through a connecting rod mechanism. The crossbeam is directly connected to the middle frame. After the conveyor belt deviates, it drives the rotating frame to rotate around the rotating shaft for a certain angle. At this time, the conical roller applies a lateral thrust to the conveyor belt to restore the conveyor belt to its original position after deviation. Due to the different diameters at both ends of the conical roller, when the roller rotates, the linear speed of the roller's large and small heads in contact with the conveyor belt is different under the same roller angular velocity, and there is a speed difference, which changes the force condition of the roller, increases the lateral thrust generated after the conveyor belt deviates, and makes the self-aligning effect more obvious.

[0008] Its disadvantages are: since the two rotating shafts of the tapered self-aligning roller are separated, the rotating shaft strength is weak, and the rotating shaft will bend when the transport volume is large; the other two rotating frames realize the synchronous connecting rod mechanism, and due to various factors such as manufacturing and assembly, the flexibility of synchronous rotation is affected, the synchronization effect is not ideal, which affects the automatic self-aligning effect. Summary of the invention

[0009] The purpose of the embodiments of the present application is to provide a follow-up type deviation correction roller group, which can solve the above-mentioned technical problems.

[0010] The embodiment of the present application provides a follow-up type deviation-correcting roller group, including a base, a roller assembly, a connecting piece, and a cross bar. The roller assembly includes a bracket, an upper cross beam, a first lower cross beam, a second lower cross beam, a middle roller, and side rollers. The first lower cross beam and the second lower cross beam are installed at both ends of the middle part of the bracket, and the upper cross beam is installed at both ends of the bracket. The side rollers are rotatably installed between the upper cross beam and the first lower cross beam / between the upper cross beam and the second lower cross beam, and the middle roller is rotatably installed between the first lower cross beam and the second lower cross beam. A bearing is provided at the lower end of the bracket, a bearing seat is provided on the base, and the bearing is installed in the bearing seat. The connecting piece is installed on the side of the base, and the cross bar is installed on the connecting piece. A balancing pull rod is provided between the cross bar and the base.

[0011] Preferably, the balancing rod is connected to the cross bar via a first pin, and the balancing rod is connected to the base via a second pin.

[0012] Preferably, detection sensors are provided at both ends of the cross bar, and the detection sensors are detachably mounted at both ends of the cross beam.

[0013] Preferably, mounting members are provided at both ends of the base, the mounting members are arranged in an "L" shape, and at least two mounting holes are provided on the mounting members.

[0014] Preferably, the bracket is arranged in a "U" shape, the cross section of the bracket is in a "V" shape, the bracket is made of a metal material, and reinforcing ribs are arranged inside the bracket.

[0015] Preferably, the side idler is arranged obliquely, and the inclination angle of the side idler is 130 - 180 degrees.

[0016] Preferably, a first sliding member is arranged between the cross bar and the connecting member, a second sliding member is arranged between the balance tie rod and the cross bar, the first sliding member and the second sliding member are arranged in a "匚" shape, and fixing bolts are arranged on both the first sliding member and the second sliding member.

[0017] Preferably, a turntable is provided at the lower end of the bearing seat, and a return spring is provided on the side of the turntable, and at least two return springs are provided.

[0018] Preferably, both the base and the cross bar are hollow, and reinforcing ribs are arranged inside both the base and the cross bar.

[0019] Preferably, a sealing cover is provided on the bearing seat.

[0020] Advantages of the present invention:

[0021] The present invention provides a follow-up type deviation correction roller group, comprising a base, a roller assembly, a connecting piece, and a cross bar. The roller assembly comprises a bracket, an upper cross beam, a first lower cross beam, a second lower cross beam, a middle roller, and a side roller. The first lower cross beam and the second lower cross beam are installed at both ends of the middle part of the bracket, the upper cross beam is installed at both ends of the bracket, the side rollers are rotatably installed between the upper cross beam and the first lower cross beam / between the upper cross beam and the second lower cross beam, the middle rollers are rotatably installed between the first lower cross beam and the second lower cross beam, and the lower end of the bracket is provided with There is a bearing, a bearing seat is arranged on the base, the bearing is installed in the bearing seat, the connecting piece is installed on the side of the base, the cross bar is installed on the connecting piece, and a balancing rod is arranged between the cross bar and the base; the roller assembly and the base are connected by a bearing, and the assembly method of the bearing seat and the bearing ensures that the shaft is flexible and free of jamming during operation, and also improves the stress condition of the shaft. According to the characteristics of the two bearings, it is better ensured that the bearing can withstand the pressure of the material and the conveyor belt, and can withstand the alternating load formed by the centripetal force generated by the rotation of the side rollers. At the same time, the bearing seat is filled with grease and a sealing cover is used to prevent the bearing from getting stuck, thereby extending the service life of the deviation adjustment roller group. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 A top view of the present invention;

[0025] Figure 3 is a side view of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the present invention in use state.

[0027] The reference numerals are:

[0028] 1. Base; 2. Roller assembly; 3. Connecting piece; 4. Crossbar; 5. Bracket; 6. Upper crossbeam; 7. First lower crossbeam; 8. Second lower crossbeam; 9. Middle roller; 10. Side roller; 11. Bearing; 12. Bearing seat; 13. Balance rod; 14. First pin connection; 15. Second pin connection; 16. Detection sensor; 17. Mounting piece; 18. Mounting hole; 19. First sliding piece; 20. Second sliding piece; 21. Fixing bolt; 22. Turntable; 23. Sealing cover. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] like Figure 1-3 As shown, a follow-up correcting roller group includes a base 1, a roller assembly 2, a connecting piece 3, and a cross bar 4. The roller assembly 2 includes a bracket 5, an upper crossbeam 6, a first lower crossbeam 7, a second lower crossbeam 8, a middle roller 9, and a side roller 10. The first lower crossbeam 7 and the second lower crossbeam 8 are installed at both ends of the middle part of the bracket 5. The upper crossbeam 6 is installed at both ends of the bracket 5. The side roller 10 can be rotatably installed between the upper crossbeam 6 and the first lower crossbeam 7 / between the upper crossbeam 6 and the second lower crossbeam 8. The middle roller 9 can be rotatably installed between the first lower crossbeam 7 and the second lower crossbeam 8. The lower end of the bracket 5 is provided with a shaft Bearing 11, a bearing 11 seat is arranged on the base 1, the bearing 11 is installed in the bearing 11 seat, the connecting piece 3 is installed on the side of the base 1, the cross bar 4 is installed on the connecting piece 3, and a balancing rod 13 is arranged between the cross bar 4 and the base 1; the present invention connects the roller assembly 2 and the base 1 through the bearing 11, and the assembly method of the bearing 11 seat and the bearing 11 ensures that the shaft is flexible and free of jamming during operation, and also improves the stress condition of the shaft. According to the characteristics of the two bearings 11, it is better ensured that the bearing 11 can withstand the pressure of the material and the conveyor belt, and can withstand the alternating load formed by the centripetal force generated by the rotation of the side rollers. At the same time, the bearing 11 seat is filled with grease and the sealing cover 23 is used to prevent the bearing 11 from getting stuck, thereby extending the service life of the deviation adjustment roller group.

[0036] like Figure 1-3 As shown, in this embodiment, the balancing rod 13 is connected to the cross bar 4 via a first pin connection 14, and the balancing rod 13 is connected to the base 1 via a second pin connection 15. The balancing rod 13 of the present invention is detachable and can prevent the bracket 5 from excessive movement when in use.

[0037] like Figure 1-3As shown, in this embodiment, detection sensors 16 are provided at both ends of the cross bar 4. The detection sensors 16 are detachably installed at both ends of the cross beam. The detection sensors 16 of the present invention are used to detect the deviation angles of the two side rollers 10. When the deviation angle is too large, the detected signal is sent to the controller, and maintenance personnel can quickly repair this roller assembly 2.

[0038] As Figure 1-3 shown, in this embodiment, mounting members 17 are provided at both ends of the base 1. The mounting members 17 are arranged in an "L" shape, and at least two mounting holes 18 are provided on the mounting members 17. The present invention can be fixed on the track through the mounting members 17 and can be directly fixed through the mounting holes 18.

[0039] As Figure 1 shown, in this embodiment, the bracket 5 is arranged in a "U" shape, the cross section of the bracket 5 is in a "V" shape, the bracket 5 is made of a metal material, reinforcing ribs are provided inside the bracket 5, the base 1 and the cross bar 4 are both hollow, and reinforcing ribs are provided inside the base 1 and the cross bar 4. The bracket 5, the base 1, and the cross bar 4 of the present invention are all strengthened, which can improve the service life and reduce the number of repairs and replacements.

[0040] As Figure 1 shown, in this embodiment, the side roller 10 is arranged obliquely, and the inclination angle of the side roller 10 is 130 - 180 degrees. Specifically, a suitable inclination angle can be selected according to requirements, such as 140 degrees, 145 degrees, 150 degrees, 155 degrees, 160 degrees, 165 degrees, 170 degrees, 175 degrees, etc.

[0041] As Figure 1-3 shown, in this embodiment, a first sliding member 19 is provided between the cross bar 4 and the connecting member 3, and a second sliding member 20 is provided between the balance pull rod 13 and the cross bar 4. The first sliding member 19 and the second sliding member 20 are arranged in a "匚" shape, and fixing bolts 21 are provided on both the first sliding member 19 and the second sliding member 20. The position between the cross bar 4 and the connecting member 3 can be adjusted through the first sliding member 19, and the position between the balance pull rod 13 and the cross bar 4 can be adjusted through the second sliding member 20. After adjusting to a suitable position, it is limited and fixed through the fixing bolts 21.

[0042] As Figure 1As shown, in this embodiment, a turntable 22 is provided at the lower end of the bearing 11 seat, and a return spring is provided on the side of the turntable 22. At least two return springs are provided. The improved design of the deviation adjustment roller group can fully play the role of automatic deviation correction and prevent the conveyor belt from running off the track. It can minimize the wear of the conveyor belt, avoid excessive wear and tear of the conveyor belt, and increase the service life of the conveyor belt.

[0043] like Figure 1 As shown, in this embodiment, a sealing cover 23 is provided on the bearing seat 11 . The sealing cover 23 of the present invention can prevent impurities, dust, etc. from entering into the bearing 11 .

[0044] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A follow-up deviation correction roller group, characterized in that: It includes a base, a roller assembly, a connecting piece, and a cross bar. The roller assembly includes a bracket, an upper cross beam, a first lower cross beam, a second lower cross beam, a middle roller, and side rollers. The first lower cross beam and the second lower cross beam are installed at both ends of the middle part of the bracket. The upper cross beam is installed at both ends of the bracket. The side rollers are rotatably installed between the upper cross beam and the first lower cross beam / between the upper cross beam and the second lower cross beam. The middle roller is rotatably installed between the first lower cross beam and the second lower cross beam. A bearing is provided at the lower end of the bracket, and a bearing seat is provided on the base. The bearing is installed in the bearing seat. The connecting piece is installed on the side of the base, and the cross bar is installed on the connecting piece. A balance pull rod is provided between the cross bar and the base.

2. The follow-up deviation-correcting roller assembly according to claim 1 is characterized in that: The balance pull rod is connected to the cross bar through a first pin, and the balance pull rod is connected to the base through a second pin.

3. The follow-up deviation correction roller assembly according to claim 1 is characterized in that: Detection sensors are provided at both ends of the cross bar, and the detection sensors are detachably installed at both ends of the cross beam.

4. The follow-up deviation correction roller assembly according to claim 1 is characterized in that: Mounting pieces are provided at both ends of the base. The mounting pieces are arranged in an "L" shape, and at least two mounting holes are provided on the mounting pieces.

5. The follow-up deviation-correcting roller assembly according to claim 1 is characterized in that: The bracket is arranged in a "U" shape. The cross section of the bracket is in a "V" shape. The bracket is made of a metal material, and reinforcing ribs are provided inside the bracket.

6. The follow-up deviation correction roller assembly according to claim 1 is characterized in that: The side rollers are arranged obliquely, and the inclination angle of the side rollers is 130 - 180 degrees.

7. The follow-up deviation-correcting roller assembly according to claim 1 is characterized in that: A first sliding member is provided between the cross bar and the connecting piece, and a second sliding member is provided between the balance pull rod and the cross bar. The first sliding member and the second sliding member are arranged in a "匚" shape, and fixing bolts are provided on both the first sliding member and the second sliding member.

8. The follow-up deviation-correcting roller assembly according to claim 1 is characterized in that: A turntable is provided at the lower end of the bearing seat, and a return spring is provided on the side of the turntable. At least two return springs are provided.

9. The follow-up deviation-correcting roller assembly according to claim 1 is characterized in that: Both the base and the cross bar are hollow, and reinforcing ribs are provided inside both the base and the cross bar.

10. The follow-up deviation-correcting roller assembly according to claim 1 is characterized in that: A sealing cover is provided on the bearing seat.

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