Roll screen with adjustable space between roll shafts

Abstract

The utility model provides a roll shaft screen with adjustable roll shaft spacing, which comprises a bearing main body, a first driving piece and a second driving piece, the bearing main body is provided with at least two roll shafts at intervals along the conveying direction, two ends of each roll shaft are connected with the bearing main body through bearing seats, and the first driving piece and the second driving piece are arranged on the bearing main body. The bearing seat has a locking state in which the bearing seat and the bearing main body are relatively fixed, and an unlocking state in which the bearing seat slides in the conveying direction or away from the conveying direction; the first driving piece is connected with the bearing seat at any end of the roller shaft so as to drive the roller shaft to rotate in the circumferential direction; and the second driving piece is connected with the bearing seat, and the second driving piece drives the roller shaft to slide in the conveying direction or away from the conveying direction when the bearing seat is in the unlocking state. According to the roll shaft screen with the adjustable roll shaft distance, the distance between the roll shafts can be adjusted through the second driving piece, so that complex operation of replacing the roll sleeves and disassembling the roll shafts is omitted, the maintenance and disassembly time cost is reduced, and the running efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller screens, in particular to a roller screen with adjustable roller spacing. Background Art

[0002] With the continuous development of science and technology, the use of new energy sources is gradually accepted by people; coal, as a traditional energy source, accounts for a decreasing proportion of total energy utilization; against the background of increasingly smaller profit margins for coal preparation and mineral processing, it is an important task for many coal enterprises to survive and develop by innovating and transforming existing equipment and optimizing traditional process systems to reduce coal preparation and mineral processing costs and improve production efficiency.

[0003] Roller screen is a commonly used raw coal screening equipment. The roller screen is composed of many parallel arranged rollers with sieve plates staggered on them. Its rotation direction is the same as the material flow direction. Traditional material screening is carried out through the spacing between roller screens, but due to different production requirements, the screening spacing needs to be adjusted in time. Usually, the spacing adjustment requires the sieve plates to be removed or added. The procedure is complicated and requires a large number of staff to operate. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a roller screen with adjustable roller spacing, so as to solve the problem of inconvenient adjustment of the roller spacing of the roller screen in the prior art.

[0005] Based on the above purpose, the utility model provides a roller screen with adjustable roller spacing, comprising:

[0006] A supporting body, with at least two rollers spaced apart in the conveying direction, the two ends of the rollers being connected to the supporting body through bearing seats, the bearing seats having a locked state relatively fixed to the supporting body, and an unlocked state sliding along the conveying direction or away from the conveying direction;

[0007] A first driving member connected to the bearing seat at either end of the roller shaft to drive the roller shaft to rotate circumferentially;

[0008] The second driving member is connected to the bearing seat, and the second driving member drives the roller shaft to slide along the conveying direction or away from the conveying direction when the bearing seat is in an unlocked state.

[0009] Furthermore, two side ends of the supporting body are provided with slide grooves along the conveying direction, and the bearing seat is constrained and clamped into the slide grooves;

[0010] The bearing seat and the slide groove are fixedly connected by a fastener that is commonly provided therethrough, so as to form a locked state of the bearing seat.

[0011] Furthermore, a cushion block is fixedly provided at the bottom end of the bearing seat, and the bottom end of the cushion block abuts against the slide groove;

[0012] The side ends of the cushion block and the side ends of the supporting body are both configured with special-shaped slots, and the fasteners are embedded in the special-shaped slots to fix the cushion block in the sliding slot.

[0013] Furthermore, it also includes:

[0014] A hinge connecting rod bracket is arranged at the side end of the supporting body along the conveying direction, one end of the hinge connecting rod bracket is fixedly connected to the output end of the second driving member, and the other end is fixedly connected to the outermost bearing seat, and the bearing seats on the same side are all fixed on the hinge connecting rod bracket;

[0015] The hinge link bracket is configured to be driven by the second driving member to unfold along the conveying direction or fold away from the conveying direction, so as to drive the bearing seat to slide along the conveying direction or away from the conveying direction.

[0016] Furthermore, the hinge connecting rod bracket includes a plurality of connecting cranks arranged alternately with each other, the two ends of each connecting crank are respectively connected end to end with the adjacent connecting cranks, and the staggered nodes of any two staggered connecting cranks are formed with through mounting holes, and the bearing seat and the mounting holes are fixedly connected by fasteners that penetrate the two together, so as to fix the bearing seat on the hinge connecting rod bracket.

[0017] Furthermore, the spacing between any two adjacent staggered nodes is the same, and the spacing between the bearing seats on the same side is the same.

[0018] Furthermore, a hinge connecting rod bracket is respectively provided on both sides of the supporting body, and each of the hinge connecting rod brackets is respectively connected to a second driving member;

[0019] The unfolding or folding actions of the hinge connecting rod brackets on both sides of the supporting body are performed synchronously.

[0020] Furthermore, a scale pointer is connected to the top of the bearing seat, and a scale ruler is provided on the side end of the supporting body along the conveying direction.

[0021] Furthermore, one end of each of the roller shafts is connected to the first driving member, and the first driving members between any two adjacent roller shafts are staggered relative to the supporting body.

[0022] Furthermore, it also includes a shell, which is covered on the supporting body to form a screening cavity together with the supporting body.

[0023] From the above description, it can be seen that the roller screen with adjustable roller spacing provided by the utility model sets the bearing seat to have a locked state relatively fixed to the supporting body, and an unlocked state sliding along the conveying direction or away from the conveying direction. Since the second driving member is connected to the bearing seat, when the bearing seat is in the unlocked state, the second driving member drives the roller to slide along the conveying direction or away from the conveying direction, thereby realizing the adjustment of the spacing between the rollers. The adjustment of the roller spacing is more convenient and quick, reduces manual intervention, eliminates the complicated operations of replacing roller sleeves and disassembling rollers, reduces the maintenance and repair time cost, and is conducive to improving the operation efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of the roller screen in the embodiment of the utility model;

[0026] Figure 2 It is a side view of the roller screen in the embodiment of the utility model;

[0027] Figure 3 for Figure 2 FF cross-sectional diagram in;

[0028] Figure 4 for Figure 1 Enlarged view of part A in the middle;

[0029] Figure 5 This is a front view of the roller screen in the embodiment of the utility model;

[0030] Figure 6 It is a schematic diagram of the hinge connecting rod bracket in the embodiment of the utility model.

[0031] Description of Reference Numerals

[0032] 10. Supporting body; 11. Roller; 12. Slide; 13. Bearing seat; 14. Cushion block; 15. Special-shaped slot; 16. Baffle; 17. Scale pointer; 18. Scale ruler;

[0033] 20. a first driving member; 30. a second driving member;

[0034] 40. Hinge connecting rod bracket; 41. Connecting crank; 42. Staggered node. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0036] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the utility model should be the common meanings understood by people with ordinary skills in the field to which the disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] One or more embodiments of the present application provide a roller screen with adjustable roller spacing, which is described below with reference to the accompanying drawings.

[0038] like Figure 1 As shown, the roller screen with adjustable roller gap described in the present application includes a supporting body 10, a first driving member 20 and a second driving member 30, wherein the supporting body 10 is provided with at least two rollers 11 spaced apart along the conveying direction, and both ends of the rollers 11 are connected to the supporting body 10 through bearing seats 13, and the bearing seats 13 have a locked state relatively fixed to the supporting body 10, and an unlocked state sliding along the conveying direction or away from the conveying direction; the first driving member 20 is connected to the bearing seat 13 at either end of the roller 11 to drive the roller 11 to rotate circumferentially; the second driving member 30 is connected to the bearing seat 13, and the second driving member 30 drives the roller 11 to slide along the conveying direction or away from the conveying direction when the bearing seat 13 is in the unlocked state.

[0039] From the above description, it can be seen that the roller screen with adjustable roller gap described in the present application sets the bearing seat 13 to have a locked state relatively fixed with the supporting body 10, and an unlocked state sliding along the conveying direction or away from the conveying direction. Since the second driving member 30 is connected to the bearing seat 13, when the bearing seat 13 is in the unlocked state, the second driving member 30 drives the roller 11 to slide along the conveying direction or away from the conveying direction, thereby realizing the adjustment of the spacing between the rollers 11. The adjustment of the spacing between the rollers 11 is more convenient and quick, reduces manual intervention, eliminates the complicated operations of replacing roller sleeves and disassembling rollers 11, reduces the maintenance and repair time cost, and is conducive to improving the operation efficiency of the equipment.

[0040] It should be noted that the conveying direction described in the embodiments of the present application refers to Figure 1 and Figure 3 In the direction of the arrow. In addition, illustratively, the aforementioned first driving member 20 can be a driving motor, the output shaft of the driving motor extends into the bearing seat 13 and is fixed to the roller shaft 11, thereby driving the roller shaft 11 to rotate circumferentially. It should be noted that in addition to the components mentioned in the embodiments of the present application, the roller screen should also include other corresponding components for completing the screening process, which can be set with reference to the relevant technology and will not be described in detail.

[0041] In the embodiment of the present application, the roller screen also includes a shell covered on the supporting body 10, and the shell and the supporting body 10 together form a screening cavity. The material to be screened enters the screening cavity along the conveying direction, and the soil particles and gravel smaller than the screening particle size fall to the bottom due to gravity and the roller 11, and the large gravel larger than the screening particle size is driven by the roller 11 to be output from the screening cavity, thereby completing the screening operation.

[0042] like Figure 2 and Figure 5 As shown, in some embodiments, slide grooves 12 are provided on both side ends of the supporting body 10 along the conveying direction, and the bearing seat 13 is constrained and clamped into the slide grooves 12; the bearing seat 13 and the slide grooves 12 are fixedly connected by fasteners that are commonly penetrated to form a locked state of the bearing seat 13.

[0043] In the above description, the supporting body 10 is made of a metal material with high rigidity, and a baffle 16 is constructed on both sides of the supporting body 10, and the baffle 16 and the shell together form a screening cavity. Among them, the slide groove 12 is arranged on the side of the baffle 16 on the supporting body 10 away from the screening cavity, and the slide groove 12 is preferably a linear slide groove 12, so that the bearing seat 13 can slide and move along the slide groove 12.

[0044] Furthermore, a cushion block 14 is fixed to the bottom end of the bearing seat 13, and the bottom end of the cushion block 14 abuts against the slide groove 12; the side ends of the cushion block 14 and the side ends of the supporting body 10 are both configured with special-shaped slots 15, and the fastener is embedded in the special-shaped slots 15 to fix the cushion block 14 in the slide groove 12. Here, the cushion block 14 and the bearing seat 13 are fastened and connected by bolts passing through the two, and the special-shaped slots 15 can be Figure 5 The "T"-shaped groove in the bearing seat 13 can also be other shapes. The fastener is adapted to the shape of the special-shaped groove 15. When the fastener is embedded in the special-shaped groove 15, the dislocated fastener clamps the cushion block 14 and the slide groove 12 to form a locked state of the bearing seat 13; when the fastener is removed, the cushion block 14 and the slide groove 12 are not constrained, forming an unlocked state of the bearing seat 13.

[0045] like Figure 3 and Figure 6 As shown, in some embodiments, the roller screen also includes a hinged connecting rod bracket 40, which is arranged at the side end of the supporting body 10 along the conveying direction, one end of the hinged connecting rod bracket 40 is fixedly connected to the output end of the second driving member 30, and the other end is fixedly connected to the outermost bearing seat 13, and the bearing seats 13 on the same side are all fixed on the hinged connecting rod bracket 40; the hinged connecting rod bracket 40 is configured to be driven by the second driving member 30 to unfold along the conveying direction or fold away from the conveying direction, so as to drive the bearing seat 13 to slide along the conveying direction or away from the conveying direction.

[0046] In the above embodiment, the hinge connecting rod bracket 40 includes a plurality of connecting cranks 41 staggered with each other, and the two ends of each connecting crank 41 are respectively connected to the adjacent connecting cranks 41 end to end, and the staggered nodes 42 of any two staggered connecting cranks 41 are formed with through mounting holes, and the bearing seat 13 and the mounting holes are fixedly connected by fasteners that penetrate the two together, so as to fix the bearing seat 13 on the hinge connecting rod bracket 40. Here, since the hinge connecting rod bracket 40 needs to be unfolded and folded, it is preferred that the bearing seat 13 and the staggered nodes 42 are also hingedly connected to reduce the interference and astringency between the bearing seat 13 and the hinge connecting rod bracket 40 as much as possible.

[0047] Furthermore, the hinge connecting rod bracket 40 is formed by overlapping two five-link brackets, wherein one five-link bracket includes five connecting cranks 41, the five connecting cranks 41 are connected to each other at the head and tail, and the connecting cranks 41 in the two five-link brackets overlap in pairs to form a staggered node 42, so that Figure 6 For example, Figure 6The staggered node 42 located on the far left is fixedly connected to the output end of the second driving member 30, the staggered node 42 located on the far right is fixedly connected to the outermost bearing seat 13, and the staggered node 42 located in the middle is fixedly connected to the other bearing seats 13 respectively.

[0048] Here, the outermost bearing seat 13 is relative to the conveying direction, and the second driving member 30 is arranged opposite to the outermost bearing seat 13, that is, the material to be screened finally passes through the roller 11 corresponding to the outermost bearing seat 13. The outermost bearing seat 13 is always locked, so that the second driving member 30 drives the hinge connecting rod bracket 40 to unfold or fold. It can also be seen from this that the outermost roller 11 is always fixed and cannot be displaced, and the remaining rollers 11 slide and deviate relative to the fixed roller 11.

[0049] In the above embodiment, the spacing between any two adjacent staggered nodes 42 is the same, and the spacing between the bearing seats 13 on the same side is the same. Exemplarily, the roller screen has a total of four rollers 11, corresponding to eight bearing seats 13, wherein, taking the bearing seats 13 on the same side as an example, the above-mentioned hinge connecting rod bracket 40 has a total of five staggered nodes 42, excluding the staggered nodes 42 respectively connected to the output end of the second driving member 30, and the staggered nodes 42 connected to the outermost bearing seat 13, the remaining three staggered nodes 42 correspond to fix the three rollers 11, thereby forming the same spacing between the rollers 11.

[0050] Furthermore, one hinge connecting rod bracket 40 is provided on each side of the supporting body 10, and each hinge connecting rod bracket 40 is connected to one second driving member 30; the unfolding or folding action of the hinge connecting rod bracket 40 on both sides of the supporting body 10 is performed synchronously. The second driving member 30 can adopt a hydraulic linear driving component in the related technology, such as a hydraulic cylinder, and the telescopic end of the second driving member 30 and the staggered node 42 of the hinge connecting rod bracket 40 can be welded and fixed, or fixed by bolts passing through the two. Since the unfolding or folding action of the hinge connecting rod bracket 40 on both sides of the supporting body 10 is performed synchronously, the multiple rollers 11 can always be parallel and synchronously displaced in the conveying direction, preventing the rollers 11 from being relatively offset and affecting the screening effect.

[0051] It should be noted that, among the connecting cranks 41 in the embodiment of the present application, except for the smaller sizes of the staggered nodes 42 at the head and tail ends, the other connecting cranks 41 are all designed with the same size specifications. When the second driving member 30 drives the hinge connecting rod bracket 40 to extend, the offset distance between any two adjacent staggered nodes 42 always increases or decreases synchronously. This setting can ensure that the spacing between multiple rollers 11 is always the same, thereby avoiding the problem of poor screening effect caused by different spacing between the rollers 11.

[0052] like Figure 1 and Figure 4 As shown, in some embodiments, a scale pointer 17 is also connected to the top of the bearing seat 13, and a scale ruler 18 is provided at the side end of the supporting body 10 along the conveying direction. Here, a scale pointer 17 can be provided on one bearing seat 13, and preferably, a scale pointer 17 can also be provided on each bearing seat 13, so as to facilitate multiple pointers to check the adjustment accuracy.

[0053] like Figure 3 As shown, in some embodiments, one end of each roller shaft 11 is connected to a first driving member 20, and the first driving members 20 between any two adjacent roller shafts 11 are staggered relative to the supporting body 10. Through this arrangement, since the first driving members 20 occupy a large space, the staggered first driving members 20 can avoid the space interference problem when adjacently arranged, thereby making it easier to assemble and debug and maintain.

[0054] In the roller screen with adjustable roller gap described in the present application, an exemplary use process is as follows:

[0055] When it is necessary to adjust the spacing between the rollers 11, the first driving member 20 is controlled to stop rotating, the screening work is suspended, and the fasteners embedded in the special-shaped grooves 15 are removed by using tools to make the bearing seats 13 unlocked. Then, the second driving member 30 is driven to expand or fold the hinge connecting rod bracket 40, and the spacing between the rollers 11 is adjusted. The size of the spacing is determined according to the scale ruler 18 corresponding to the scale pointer 17. After confirming that the adjustment is completed, the fasteners are re-embedded in the special-shaped grooves 15, and the first driving member 20 is turned on to continue the screening work.

[0056] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0057] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roller screen with adjustable roller spacing, characterized in that: include: A supporting body, with at least two rollers spaced apart in the conveying direction, the two ends of the rollers being connected to the supporting body through bearing seats, the bearing seats having a locked state relatively fixed to the supporting body, and an unlocked state sliding along the conveying direction or away from the conveying direction; A first driving member connected to the bearing seat at either end of the roller shaft to drive the roller shaft to rotate circumferentially; The second driving member is connected to the bearing seat, and the second driving member drives the roller shaft to slide along the conveying direction or away from the conveying direction when the bearing seat is in an unlocked state.

2. The roller screen with adjustable roller spacing according to claim 1, characterized in that: The two side ends of the supporting body are provided with slide grooves along the conveying direction, and the bearing seat is constrained and clamped into the slide grooves; The bearing seat and the slide groove are fixedly connected by a fastener that is commonly provided therethrough, so as to form a locked state of the bearing seat.

3. The roller screen with adjustable roller spacing according to claim 2, characterized in that: A cushion block is fixedly disposed at the bottom end of the bearing seat, and the bottom end of the cushion block abuts against the slide groove; The side ends of the cushion block and the side ends of the supporting body are both configured with special-shaped slots, and the fasteners are embedded in the special-shaped slots to fix the cushion block in the sliding slot.

4. The roller screen with adjustable roller spacing according to claim 1, characterized in that: Also includes: A hinge connecting rod bracket is arranged at the side end of the supporting body along the conveying direction, one end of the hinge connecting rod bracket is fixedly connected to the output end of the second driving member, and the other end is fixedly connected to the outermost bearing seat, and the bearing seats on the same side are all fixed on the hinge connecting rod bracket; The hinge link bracket is configured to be driven by the second driving member to unfold along the conveying direction or fold away from the conveying direction, so as to drive the bearing seat to slide along the conveying direction or away from the conveying direction.

5. The roller screen with adjustable roller spacing according to claim 4, characterized in that: The hinge connecting rod bracket includes a plurality of connecting cranks arranged in an alternating manner with each other, and the two ends of each connecting crank are respectively connected end to end with the adjacent connecting cranks, and the staggered nodes of any two staggered connecting cranks are formed with through mounting holes, and the bearing seat and the mounting holes are fixedly connected by fasteners that penetrate the two together, so as to fix the bearing seat on the hinge connecting rod bracket.

6. The roller screen with adjustable roller spacing according to claim 5, characterized in that: The spacing between any two adjacent staggered nodes is the same, and the spacing between the bearing seats on the same side is the same.

7. The roller screen with adjustable roller spacing according to claim 4, characterized in that: A hinge connecting rod bracket is respectively arranged on both sides of the supporting body, and each of the hinge connecting rod brackets is respectively connected to a second driving member; The unfolding or folding actions of the hinge connecting rod brackets on both sides of the supporting body are performed synchronously.

8. The roller screen with adjustable roller spacing according to claim 1, characterized in that: The top of the bearing seat is also connected with a scale pointer, and the side end of the supporting body is provided with a scale ruler along the conveying direction.

9. The roller screen with adjustable roller spacing according to claim 1, characterized in that: One end of each of the roller shafts is connected to the first driving member, and the first driving members between any two adjacent roller shafts are staggered relative to the supporting body.

10. The roller screen with adjustable roller spacing according to any one of claims 1 to 9, characterized in that: It also includes a shell, which is covered on the supporting body to form a screening cavity together with the supporting body.

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