CN114772173A - Loosening conveying spiral tower conveyor - Google Patents
Loosening conveying spiral tower conveyor Download PDFInfo
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- CN114772173A CN114772173A CN202210523343.0A CN202210523343A CN114772173A CN 114772173 A CN114772173 A CN 114772173A CN 202210523343 A CN202210523343 A CN 202210523343A CN 114772173 A CN114772173 A CN 114772173A
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- 230000007704 transition Effects 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 3
- 230000001360 synchronised effect Effects 0.000 claims description 24
- 230000004323 axial length Effects 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims 2
- 230000001174 ascending effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/02—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors consisting essentially of struts, ties, or like structural elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
- B65B63/08—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for heating or cooling articles or materials to facilitate packaging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/02—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration for conveying in a circular arc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Housing For Livestock And Birds (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
The invention relates to a loose conveying spiral tower conveyor which comprises a rotary tower, wherein a net chain enters the periphery of the rotary tower and extends along a spiral line in a winding manner, driving vertical rods are respectively arranged on the outer walls of all or part of rotary tower vertical columns at uniform intervals, driving vertical rods are arranged on the outer walls of the rotary tower vertical columns, net chain driving heads meshed with the driving vertical rods are respectively arranged on the inner sides, close to the rotary tower, of chain links of the net chain, a plurality of guide blocks are uniformly arranged on the outer wall of the lower end of the rotary tower vertical column of an ascending spiral or the outer wall of the upper end of the rotary tower vertical column of a descending spiral, and the inlet ends of the driving vertical rods are respectively butted with the thinner ends of the guide blocks. The outer wall of the guide block is sequentially provided with a cylindrical section, an inlet section, a range-extending section and a leading-in section along the contact sequence of the net chain driving head, the distance between the range-extending section and the axis of the turret is larger than the radius of the turret, the distance between the cylindrical section and the axis of the turret is larger than the range-extending section, and the inlet section and the leading-in section are transition inclined planes. When the driving vertical rod drives the net chain to move forward, the meshing gap and the loosening gap can be eliminated, and the phenomenon of outer side tightening is improved.
Description
Technical Field
The invention relates to a conveyor, in particular to a loose conveying spiral tower conveyor, and belongs to the technical field of conveying equipment.
Background
The production line of baked food needs to bake food at high temperature, the high-temperature food taken out of the oven cannot be packaged immediately, and needs to be cooled and conveyed for a long time, and then the food is packaged after being completely cooled. The loose conveying spiral tower conveyor provides a long conveying distance under the condition of small occupied area, so that longer cooling time can be obtained, and the loose conveying spiral tower conveyor is widely applied to the food baking industry.
The existing loose conveying spiral tower conveyor comprises a rotary tower, a network chain is spirally wound on the periphery of the rotary tower and synchronously rotates along with the rotary tower, a rotary tower central shaft is arranged at the center of the rotary tower, and the upper end and the lower end of the rotary tower central shaft are respectively supported on a rack through bearing seats; the bottom of each layer of net chain is supported on a spiral ring rail to slide, each layer of spiral ring rail is fixed on a radial support rod, the outer end of each radial support rod is fixed on an upright post, and the upright posts are uniformly distributed by taking the axis of the turret as the center.
The existing loose conveying spiral tower conveyor has the following defects: 1. the net chain directly enters the arc-shaped limiting guide section for forced steering from the straight line advancing section, and each pin shaft of the net chain is changed into a fan-shaped opening state with the outer side spacing larger than the inner side spacing from a mutually parallel state. In this process, the inner sides of the net chains need to be close to each other to adapt to the change of the outer circumference. In actual use, because the net chain bears heavier goods, when the change of the circumference of the inner side of the net chain is not adapted to the outer side easily, the driving head is meshed with the driving vertical rod in advance, the inner side of the net chain is limited in the reverse direction of the driving vertical rod, the traction of the linear advancing section to the inner side of the arc-shaped limiting guide section is limited, the continuous non-adaptation accumulation of the inner side of the net chain to a certain degree can enable the length of the outer side of the net chain to be smaller than the theoretical circumference, the outer side of the net chain is tight, and the net chain can not be maintained in a loose state on the spiral tower to bear the goods.
2. Taking a guide lifting type spiral tower conveyor as an example, the outer wall of the lower end of a rotating tower can be uniformly provided with a plurality of guide blocks, so that a network chain driving head can be smoothly meshed with a driving vertical rod. The net chain driving head of each chain link of the net chain firstly pushes against the cylindrical surface of the guide block to rotate for a certain angle, the outer side of the net chain forces the inner side to adapt to the length of the outer side, so that the net chain is unfolded in a fan shape, and the net chain driving head cuts into the front side of the corresponding driving vertical rod one by one. The ideal working state is as follows: the driving vertical rod is immediately and well meshed with the net chain driving head, and drives the inner side of the net chain to actively advance.
In actual work, before the mesh chain driving head and the corresponding driving vertical rod are meshed, the meshing clearance between the meshing surface of the mesh chain driving head and the meshing surface of the corresponding driving vertical rod in the circumferential direction of the turret is overcome; after the net chain driving head is meshed with the corresponding driving vertical rod, the driving vertical rod drives the inner side of the net chain to move forward for a certain distance (namely, overcoming the slack clearance), and then the outer side of the net chain can be driven to move forward, so that the driving vertical rod can really drive the net chain to spirally rotate and move forward. The outer side of the net chain which moves backwards and is well meshed with the net chain is tightly driven, the lag driving of the driving vertical rod causes the net chain which just enters the turret, and the power of the rotation advancing of the driving vertical rod depends on the dragging of the spiral net chain at the front upper part. For the outside of capstan head and net chain, there is certain back displacement all the time when the inboard that the net chain drive head was located gets into the capstan head, makes the net chain inboard advance less, the important reason of outside tension, prior art does not can solve this problem all the time.
3. Because the frame is the welding piece, the bearing frame at capstan head center pin both ends is difficult to guarantee than higher concentricity, and can not guarantee with the straightness that hangs down on ground. In order to compensate for the different axial errors of an upper bearing seat and a lower bearing seat, the existing solution is to install a large self-aligning roller bearing in the bearing seats to realize the aim of aligning; and the shaft head at the lower end of the central shaft of the turret adopts a splicing mode, so that the bearing is convenient to replace. In the operation process, after the self-aligning roller bearing is aligned, the inner ring of the bearing inclines to one side, and the self-aligning roller bearing not only needs to bear radial force, but also needs to bear the axial gravity of the turret perpendicular to the axis of the bearing, so that the bearing is easy to damage. Not only increases the cost of accessories, but also influences the stable operation of the production line.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a loose conveying spiral tower conveyor, which can overcome the meshing gap between the meshing surface of a net chain driving head and the meshing surface of a corresponding driving vertical rod in the circumferential direction of a rotating tower when the driving vertical rod drives a net chain to move forwards, eliminate the loose gap and improve the phenomenon that the net chain is slightly tight on the outer side of the spiral tower.
In order to solve the technical problems, the loose conveying spiral tower conveyor comprises a turret, a net chain enters the periphery of the turret in a tangential direction and extends in a winding manner along a spiral line, a plurality of turret stand columns are uniformly arranged along the circumference of the turret, driving vertical rods are respectively arranged on the outer walls of all or part of the turret stand columns at uniform intervals, net chain driving heads meshed with the driving vertical rods are respectively arranged on the inner sides, close to the turret, of chain links of the net chain, a plurality of guide blocks are uniformly arranged on the outer walls of the lower ends of the rising spiral turret stand columns or the outer walls of the upper ends of the falling spiral turret stand columns, and the inlet ends of the driving vertical rods are respectively butted with the thinner ends of the corresponding guide blocks.
As an improvement of the invention, the outer wall of the guide block is sequentially provided with a cylindrical section, an inlet section, a range-extending section and a leading-in section along the contact sequence of the net chain driving head, the distance between the range-extending section and the axis of the turret is larger than the distance between the outer edge of the driving vertical rod and the axis of the turret, the distance between the cylindrical section and the axis of the turret is larger than the distance between the range-extending section and the axis of the turret, the inlet section is a transition inclined plane between the cylindrical section and the range-extending section, and the leading-in section is a transition inclined plane between the range-extending section and the inlet end of the driving vertical rod.
As a further improvement of the invention, raised strip-shaped convex ribs are arranged along the axis of the outer wall from the inlet section to the leading-in section of the guide block, one ends of the strip-shaped convex ribs are flush with the cylindrical surface section of the guide block, and the other ends of the strip-shaped convex ribs are in smooth butt joint with the inlet end of the driving vertical rod.
As a further improvement of the invention, the arc length difference L exists between the spiral arc lengths of the inner sides of the net chains wound on the inlet section, the extended range section and the introduction section and the spiral arc lengths of the same phase angle wound along the turret upright post; the distance between the meshing surface of the entrance section net chain driving head and the meshing surface of the driving vertical rod in the circumferential direction of the turret is defined as a meshing gap D1; after the driving vertical rod is meshed with the net chain driving head and drives the inner side of the net chain to move forward for a certain distance, the slack clearance D2 can be overcome to drive the outer side of the net chain to move forward; the arc length difference L is more than or equal to the meshing clearance D1+ the loosening clearance D2.
As a further improvement of the invention, the axial length of the inlet section is 1/5-1/3 of the axial length of the range-extending section, and the arc length difference generated by the axial length of the range-extending section and the thickness of the range-extending section enables the mesh chain driving head to be smoothly meshed when reaching the driving vertical rod.
As a further improvement of the invention, the net chain enters the arc-shaped limiting guide section from the straight line advancing section through the turning bearing section, extends along a spiral line from the arc-shaped limiting guide section and is in butt joint with the arc-shaped spiral section on the turret, the mesh between the net chain driving head and the driving vertical rod is realized at the tail end of the arc-shaped limiting guide section, and the central angle of the turning bearing section relative to the axis of the turret is 30-90 degrees.
As a further improvement of the invention, the net chain is uniformly provided with anti-slip rubber strips, and each anti-slip rubber strip extends along the width direction of the net chain.
As a further improvement of the invention, the turning bearing section is provided with a turning bearing pad rail extending along an arc line, and the turning bearing pad rail is uniformly provided with a plurality of rollers supported at the bottom of the net chain.
As a further improvement of the invention, for the guide lifting type net chain conveyor, the lower end of each driving vertical rod is higher than the inlet height of the arc-shaped limit guide section and lower than the outlet height of the arc-shaped limit guide section; for the guide-falling type net chain conveyor, the upper end of each driving vertical rod is lower than the inlet height of the arc-shaped limiting guide section and higher than the outlet height of the arc-shaped limiting guide section.
As a further improvement of the invention, an arc limiting plate extending along a spiral line is arranged below the arc limiting guide section, limiting protrusions extending downwards are respectively arranged on the outer sides of the chain links of the net chain, and the limiting protrusions respectively abut against the limiting outer arc surfaces of the arc limiting plate to slide; the distance between the middle section of the limiting outer arc surface and the outer wall of the turret is larger than the distance between the two ends of the limiting outer arc surface and the outer wall of the turret.
As a further improvement of the invention, two free shafts which are parallel to each other or extend along the radial direction of the turret are arranged below the arc-shaped limiting plate, two ends of the two free shafts are respectively provided with a synchronous cog wheel, the synchronous cog wheels on the same side are connected through a synchronous cog belt, the top of the synchronous cog belt is respectively exposed out of the avoidance groove of the arc-shaped limiting plate and is supported below the net chain, and the shaft end of one free shaft is driven by a speed reducing motor.
As a further improvement of the invention, each chain link of the net chain is respectively provided with a first pin hole and a second pin hole which penetrate through the width direction of the net chain, the cross sections of the first pin hole and the second pin hole are in an oblong shape extending along the advancing direction of the net chain, the front side wall of the first pin hole, at least one third of which is close to the outer chain tooth, inclines forwards along the same inclined plane, and the rear side wall of the second pin hole, at least one third of which is close to the outer chain tooth, inclines backwards along the other inclined plane.
As a further improvement of the invention, a turret center shaft is arranged at the center of the turret, the upper end and the lower end of the turret center shaft are respectively supported on the rack through bearings, a main bearing seat is fixed at the center of the bottom of the rack, the main bearing seat is provided with a ball socket with an opening at the upper end, a matched spherical outside surface support body is supported in the ball socket, a support body counter bore is arranged in the spherical outside surface support body, a plane bearing is installed in the support body counter bore, and the lower end of the turret center shaft is supported on the plane bearing.
Compared with the prior art, the invention has the following beneficial effects: 1. the shoulder of the central shaft of the turret is supported on the upper ring of the plane bearing and bears the gravity of the turret, the net chain and the goods; meanwhile, the outer spherical surface supporting body can swing in the main bearing seat by a certain angle to compensate errors of coaxiality and verticality.
2. A turning bearing section is added between the straight advancing section and the arc-shaped limiting guide section of the net chain, the turning bearing section is a non-power section, so that the angle of each chain link of the net chain can be freely adjusted, the chain links can be freely transited from a mutually parallel state to a fan-shaped unfolding state, and the inner end of the net chain can be prematurely contacted with the driving vertical rod to be limited; the net chain can smoothly realize the turning from the straight line segment to the spiral segment, and the net chain on the spiral tower is looser and more stable.
3. When the net chain passes through the arc limiting plate, the outer side of the net chain is in a tight state and drives the synchronous cog belt on the outer side to rotate, the synchronous cog belt on the outer side drives the synchronous cog belt on the inner side to synchronously rotate through the free shaft, and the synchronous cog belt drives the net chain on the inner side to move forwards a little more, so that the loosening of the net chain on the inner side is facilitated.
Drawings
The invention is described in further detail below with reference to the attached drawing figures and the detailed description, which are provided for reference and illustration only and are not meant to limit the invention.
FIG. 1 is a perspective view of a loose conveying spiral tower conveyor of the present invention;
FIG. 2 is an enlarged perspective view of a guide block portion of the present invention;
FIG. 3 is an enlarged view of the arcuate retainer plate portion of FIG. 1;
FIG. 4 is a top view of a net chain entering a circular arc spiral section from a straight traveling section;
FIG. 5 is a bottom view of FIG. 4;
FIG. 6 is an enlarged view of the central axis of the turret;
fig. 7 is an enlarged cross-sectional view of a link of the mesh chain.
In the figure: 1. a turret; 1a turret central shaft; 1b, driving a vertical rod; 1c, a turret column; 2. a network chain; 2a, a net chain driving head; 2b, a pin hole I; 2c, pin holes II; 2d, an anti-slip rubber strip; 3. a main bearing housing; 4. an outer spherical surface support; 5. a flat bearing; 6. a linear travel section; 7. turning and bearing pad rails; 8. an arc limiting plate; 9. a free shaft; 10. a synchronous toothed belt; 11. a circular arc spiral section; 12. a frame; 13. a guide block; 13a, a cylindrical section; an inlet section; 13c, a range extending section; 13d, a lead-in section; striped ribs.
Detailed Description
In the following description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not mean that the apparatus must have a specific orientation.
As shown in fig. 1 and 2, the loosely conveying spiral tower conveyor of the present invention includes a turret 1, a network chain enters the periphery of the turret 1 in a tangential direction and extends spirally, a plurality of turret columns 1c are uniformly provided along the circumference of the turret 1, driving vertical rods 1b are provided on the outer walls of all or part of the turret columns 1c at regular intervals, a network chain driving head 2a engaged with the driving vertical rods 1b is provided on the inner side of each chain link of the network chain near the turret, respectively, a plurality of guide blocks 13 are provided on the outer wall of the lower end of the turret column of the ascending spiral or the outer wall of the upper end of the turret column of the descending spiral, respectively, and the inlet end of each driving vertical rod 1b is butted with the thinner end of the corresponding guide block.
The outer wall of the guide block 13 is sequentially provided with a cylindrical section 13a, an inlet section 13b, a range-increasing section 13c and an introduction section 13d along the contact sequence of the net chain driving head 2a, and the distance between the outer wall of the range-increasing section and the axis of the turret is greater than the distance between the outer wall of the turret upright post and the axis of the turret; when a large range is required to be extended, the distance between the outer wall of the range-extending section and the axis of the turret can be larger than the distance between the outer edge of the driving vertical rod and the axis of the turret; the distance between the outer wall of the cylindrical section and the axis of the turret is larger than the distance between the outer wall of the extended-range section and the axis of the turret, the inlet section 13b is a transition inclined plane between the cylindrical section 13a and the extended-range section 13c, and the leading-in section 13d is a transition inclined plane between the extended-range section 13c and the inlet end of the driving vertical rod 1b.
The inner side of the net chain can abut against the cylindrical section 13a of the guide block 13 and rotate for a certain angle, the outer side of the net chain forces the inner side to adapt to the length of the outer side, so that the net chain is spread in a fan shape, then the inner side of the net chain enters the range-extending section 13c after being transited through the inlet section 13b, and the cylindrical section 13a of the guide block 13 is larger than the circumference of the range-extending section 13c by a certain radius, so that the net chain is looser when reaching the range-extending section 13c from the cylindrical section 13a.
Because the radius of the circumference where the range-extending section 13c is located is larger than that of the circumference where the driving vertical rod 1b is located, the radius difference brings the arc length difference of the same central angle at the inner side of the net chain. After the net chain passes through the extension section 13c and the lead-in section 13d, when the net chain enters into engagement with the driving vertical rod 1b, the arc length difference can counteract the previous engagement gap and the previous loosening gap, and the driving vertical rod 1b can be immediately well engaged with the net chain driving head 2a, so that the driving vertical rod 1b can normally drive the inner side of the net chain to move forward. On one hand, the dragging of the front net chain is not relied on, and on the other hand, the back movement of the inner side of the net chain is not generated.
In a top view, there is a distance between the engagement surface of the net chain drive head of the entrance section 13b and the engagement surface of the driving vertical bar in the circumferential direction of the turret, which distance is defined as an engagement gap D1.
After the net chain driving head 2a is engaged with the corresponding driving vertical rod, the driving vertical rod drives the inner side of the net chain to advance for a certain distance, and then the outer side of the net chain is driven to follow the advance, and the distance is defined as a slack clearance D2.
From an entrance section 13b where a certain net chain driving head 2a starts to enter a guide block, to an introduction section 13d where the guide block departs from the guide block, a central angle through which the guide block rotates corresponding to the axis of the turret is defined as an extended range phase angle, spiral arc lengths of the inner side of the net chain corresponding to each extended range phase angle, which are wound around the entrance section 13b, the extended range section 13c and the introduction section 13d, and an arc length difference exists between spiral arc lengths of the same phase angle wound along the turret column 1c, which is defined as an arc length difference L. The arc length difference L includes an arc length difference L1 due to the inlet section 13b, an arc length difference L2 due to the extended-range section 13c, and an arc length difference L3 due to the introduction section 13d.
The larger the ratio of L/(D1 + D2), the looser the outer side of the net chain, the loose conveying is realized, and the bearing capacity is stronger. The arc length difference L is larger than the sum of D1+ D2, usually L is larger than or equal to 1.5 (D1 + D2), so as to ensure that the driving vertical rod 1b drives the net chain driving head 2a to advance in time. Therefore, the accumulated error caused by the loosening and collapsing of the gap can be avoided, and the tight net chain caused by the lag or the short-term advance of the inner side of the net chain can also be avoided.
In a two-column application, the ratio of L/(D1 + D2) may be non-uniform to facilitate reducing tension in the two-column transition section.
And raised strip-shaped convex ribs 13e are arranged along the axis of the outer wall from the guide block inlet section 13b to the guide-in section 13d, one ends of the strip-shaped convex ribs 13e are flush with the guide block cylindrical section 13a, and the other ends of the strip-shaped convex ribs 13e are in smooth butt joint with the inlet end of the driving vertical rod 1b. The strip-shaped convex ribs 13e can prevent the net chain driving head 2a on the front side of the net chain from moving backwards, so that the backstopping effect is achieved, and the phenomenon that the inner side of the net chain retreats due to the tension of the linear advancing section is avoided; the strip-shaped rib 13e also enables the net chain driving head 2a to be engaged with the driving vertical bar 1b more smoothly.
The length of the inlet section 13b in the direction of the drum axis is called the inlet section axial length, the length of the extended-range section 13c in the direction of the drum axis is called the extended-range section axial length, and the inlet section axial length is 1/5-1/3 of the extended-range section axial length.
The difference between the distance between the outer wall of the extended range section and the axis of the turret and the radius of the turret is equal to the thickness of the extended range section, the radius of the turret is the distance between the outer wall of the turret upright post 1c and the axis of the turret, and the arc length difference generated by the axial length of the extended range section and the thickness of the extended range section enables the mesh chain driving head 2a to be smoothly meshed when reaching the driving vertical rod.
The width of the guide block is small relative to the circumference of the turret, and the cylindrical section 13a and the range-extending section 13c of the guide block can be cylindrical cambered surfaces taking the axis of the turret as the center and can also be approximately flat; the inlet section 13b and the introduction section 13d of the guide block may be conical surfaces centered on the turret axis or may be approximately inclined surfaces to simplify the machining.
As shown in fig. 1 to 5, the net chain 2 enters the arc-shaped limiting guide section from the straight traveling section 6 through the turning support section, extends along a spiral line from the arc-shaped limiting guide section and is butted with the arc spiral section 11 on the turret 1, the mesh between the net chain driving head 2a and the driving vertical rod 1b is realized at the tail end of the arc-shaped limiting guide section, and the central angle gamma of the turning support section relative to the axis of the turret is 20-60 degrees. In turn bearing section, the outer end and the inner of net chain 2 are all unrestricted, and the free adjustment position is through the adjustment of one section circular arc, and net chain 2 is by the state that is parallel to each other, and the free adjustment is fan-shaped state of opening, then gets into the spacing direction section of arc and forces the direction, realizes the meshing with drive montant 1b at the end of arc limiting plate 8.
The net chain 2 is evenly provided with anti-slip rubber strips 2d, each anti-slip rubber strip 2d extends along the width direction of the net chain, and the bottom of the article falls on the anti-slip rubber strips 2d to avoid slipping. When the net chain enters the turning from the straight advancing section 6, the pitch change is small at the position close to the outer side of the net chain, and the arrangement of the anti-skid rubber strips 2d is dense. The position close to the inner side of the net chain has larger pitch change during turning, and each station is provided with an anti-slip rubber strip 2d.
The turn bearing section is equipped with along the turn bearing rail pad 7 that the circular arc line extends, and turn bearing rail pad 7 evenly is equipped with a plurality of gyro wheels that support in the net chain bottom, makes the net chain less at the resistance of turn bearing section, more does benefit to its free adjustment.
For the guide lifting type net chain conveyor, the lower end of each driving vertical rod 1b is higher than the inlet height of the arc-shaped limiting guide section and lower than the outlet height of the arc-shaped limiting guide section.
For the guiding and descending type net chain conveyor, the upper end of each driving vertical rod 1b is lower than the inlet height of the arc-shaped limiting guide section and higher than the outlet height of the arc-shaped limiting guide section, so that the net chain driving head 2a is prevented from contacting the driving vertical rods 1b before entering the arc-shaped spiral section 11 to form interference.
An arc limiting plate 8 is arranged below the arc limiting guide section, limiting bulges extending downwards are respectively arranged on the outer sides of all chain links of the net chain 2, and all the limiting bulges are respectively abutted against the limiting outer arc surfaces of the arc limiting plates 8 to slide.
The distance between the middle section of the limiting outer arc surface and the outer wall of the turret is larger than the distance between the two ends of the limiting outer arc surface and the outer wall of the turret.
At the inlet end of the arc-shaped limiting plate 8, the net chain driving head 2a abuts against the outer wall of the turret 1 and is not in contact with the driving vertical rod 1 b; as the net chain advances towards the middle section of the arc-shaped limiting plate 8, the arc top of the net chain driving head 2a gradually crosses the high point of the driving vertical rod 1b and gradually enters into meshing; when the net chain advances to the outlet end of the arc limiting plate 8, the rear side groove of the net chain driving head 2a is completely meshed with the driving vertical rod 1b, and the driving vertical rod 1b drives the net chain driving head 2a to further drive the net chain to advance around the rotation tower axis in a rotating mode.
Two free shafts 9 which are parallel to each other or extend along the radial direction of the turret are arranged below the arc-shaped limiting plate 8, two ends of each free shaft 9 are respectively provided with a synchronous cog wheel, the synchronous cog wheels on the same side are connected through a synchronous cog belt 10, and the top of the synchronous cog belt 10 is respectively exposed out of the avoidance groove of the arc-shaped limiting plate 8 and is supported below the net chain 2.
The tight outer side of the net chain 2 is pressed on the outer synchronous cog belt 10 to drive the net chain to rotate, the outer synchronous cog belt 10 drives the two free shafts 9 to rotate through the outer synchronous cog wheels, the two free shafts 9 drive the inner synchronous cog belt to rotate through the inner synchronous cog wheels, and the synchronous cog belt promotes the advance of the inner net chain, so that the inner multi-feed ruler is facilitated, and the net chain is loosened.
The shaft end of one free shaft can be driven by a speed reducing motor, so that the synchronous toothed belt 10 on the inner side actively drives the net chain on the inner side to advance, and the purpose of loosening the net chain by means of multi-footage on the inner side can be achieved more controllably.
As shown in figure 7, each chain link of the net chain is respectively provided with a pin hole I2 b and a pin hole II 2c which penetrate through the width direction of the net chain, the cross sections of the pin hole I2 b and the pin hole II 2c are in an oval shape extending along the advancing direction of the net chain, the front side wall of the pin hole I2 b, at least one third of which is close to the outer chain tooth, is forwards inclined along the same inclined plane, and the rear side wall of the pin hole II 2c, at least one third of which is close to the outer chain tooth, is backwards inclined along the other inclined plane.
The front inclined plane and the front side wall of the straight hole form an included angle alpha, so that the outer end head of the first chain pin cannot contact the front inclined plane, the acting point of the first chain pin and the first pin hole 2b in turning is the intersection point of the front inclined plane and the front side wall of the straight hole, namely the acting point of the first chain pin and the first pin hole 2b moves 1/3 meshes of chain width inwards from the outermost chain teeth.
The back inclined plane and the back side wall of the straight hole form an included angle beta, so that the outer end head of the second chain pin cannot contact the back inclined plane, the acting point of the second chain pin and the second pin hole 2c in turning is the intersection point of the back inclined plane and the back side wall of the straight hole, namely the acting point of the second chain pin and the second pin hole 2c moves inwards 1/3 mesh chain width from the outermost sprocket, the acting point is closer to the central line of the mesh chain in the amplitude direction, the distance between the acting point and the inner end head of the mesh chain is shortened, and the adjustment of the inner end head of the mesh chain is facilitated.
As shown in fig. 6, a turret center shaft 1a is arranged at the center of the turret 1, the upper end and the lower end of the turret center shaft 1a are respectively supported on the frame 12 through bearings, a plurality of driving vertical rods 1b extending vertically are uniformly arranged along the periphery of the turret, the net chain 2 enters the periphery of the turret 1 along the tangential direction and winds and extends along a spiral line, net chain driving heads 2a are respectively arranged on the inner sides of the chain links of the net chain 2 close to the turret 1, and after entering the periphery of the turret 1, the driving vertical rods 1b are meshed with certain net chain driving heads 2a to drive the net chain 2 to rotate along with the turret 1.
A main bearing seat 3 is fixed at the center of the bottom of the frame 12, the main bearing seat 3 is provided with a ball socket with an opening at the upper end, a matched outer spherical surface support body 4 is supported in the ball socket, the top of the outer spherical surface support body 4 is a plane and is provided with a support body counter bore, a plane bearing 5 is installed in the support body counter bore, and the lower end of the turret center shaft 1a is supported on the plane bearing 5.
The upper ring of the plane bearing 5 is a loose ring, the shoulder of the turret central shaft 1a is supported on the upper ring, the upper ring is supported on the lower ring through a ball with a retainer to rotate, and the lower ring is a tight ring and is fixed at the bottom of the counter bore of the support body. The spherical outer surface support 4 is supported by the spherical surface in the main bearing housing 3 and can bear a large axial weight. The outer spherical surface supporting body 4 can also swing in a ball socket, so that the function of aligning is realized, and the error of a frame welding part is compensated.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention. The technical features of the invention which are not described can be realized by or by using the prior art, and are not described in detail herein.
Claims (12)
1. The utility model provides a lax conveying spiral tower conveyer, includes the capstan head, and the net chain gets into the periphery of capstan head and extends along the helix winding along the tangential, evenly is equipped with many capstan head stands along the circumference of capstan head, its characterized in that: the outer walls of all or part of the turret columns which are uniformly spaced are respectively provided with a driving vertical rod, the inner sides of all chain links of the net chain, which are close to the turret, are respectively provided with a net chain driving head which is meshed with the driving vertical rods, the outer wall of the lower end of the rising spiral turret column or the outer wall of the upper end of the falling spiral turret column is uniformly provided with a plurality of guide blocks, and the inlet end of each driving vertical rod is respectively butted with the thinner end of the corresponding guide block.
2. The loosely conveying spiral tower conveyor of claim 1, wherein: the outer wall of guide block is equipped with cylindrical section, entry section, increases journey section and induction section along the contact order of net chain driving head in proper order, the distance between increase journey section and the capstan head axis is greater than the distance between capstan head stand outer wall and the capstan head axis, the distance between cylindrical section and the capstan head axis is greater than the distance between increase journey section and the capstan head axis, the entry section is the transition inclined plane between cylindrical section and the increase journey section, the induction section is the transition inclined plane between increase journey section and the drive montant entry end.
3. The loosely conveying spiral tower conveyor of claim 2, wherein: and raised strip-shaped convex ribs are arranged along the axis of the outer wall from the inlet section of the guide block to the leading-in section, one end of each strip-shaped convex rib is flush with the cylindrical surface section of the guide block, and the other end of each strip-shaped convex rib is smoothly butted with the inlet end of the driving vertical rod.
4. The loosely conveying spiral tower conveyor of claim 2, wherein: the inner side of the net chain is wound on the spiral arc length of the inlet section, the range extending section and the leading-in section, and an arc length difference L exists between the spiral arc length and the spiral arc length wound along the turret upright post at the same phase angle; the distance between the engaging surface of the mesh chain driving head of the inlet section and the engaging surface of the driving vertical rod in the circumferential direction of the turret is defined as an engaging gap D1; after the driving vertical rod is meshed with the net chain driving head and drives the inner side of the net chain to move forward for a certain distance, the slack clearance D2 can be overcome to drive the outer side of the net chain to move forward along with the net chain; the arc length difference L is more than or equal to the meshing clearance D1+ the loosening clearance D2.
5. The loosely conveying spiral tower conveyor of claim 2, wherein: the axial length of the inlet section is 1/5-1/3 of the axial length of the range-extending section, and the arc length difference generated by the axial length of the range-extending section and the thickness of the range-extending section enables the net chain driving head to be meshed smoothly when reaching the driving vertical rod.
6. The loosely conveying spiral tower conveyor of claim 1, wherein: the net chain enters the arc-shaped limiting guide section from the straight line advancing section through the turning bearing section, extends along a spiral line from the arc-shaped limiting guide section and is in butt joint with the arc spiral section on the turret, the net chain driving head is meshed with the driving vertical rod at the tail end of the arc-shaped limiting guide section, and the central angle of the turning bearing section relative to the axis of the turret ranges from 20 degrees to 70 degrees.
7. The loosely conveying spiral tower conveyor of claim 1, wherein: and anti-slip rubber strips are uniformly arranged on the network chain and extend along the width direction of the network chain.
8. The loosely conveying spiral tower conveyor of claim 6, wherein: the turn bearing section is equipped with the turn bearing pad rail that extends along the circular arc line, turn bearing pad rail evenly is equipped with a plurality of gyro wheels of supporting in the net chain bottom.
9. The loosely conveying spiral tower conveyor of claim 6, wherein: for the guide lifting type net chain conveyor, the lower end of each driving vertical rod is higher than the inlet height of the arc-shaped limiting guide section and lower than the outlet height of the arc-shaped limiting guide section; for the guide-falling type net chain conveyor, the upper end of each driving vertical rod is lower than the inlet height of the arc-shaped limiting guide section and higher than the outlet height of the arc-shaped limiting guide section.
10. The loosely conveying spiral tower conveyor of claim 6, wherein: an arc limiting plate extending along a spiral line is arranged below the arc limiting guide section, limiting protrusions extending downwards are arranged on the outer sides of all chain links of the net chain respectively, and all the limiting protrusions abut against the limiting outer arc surfaces of the arc limiting plate to slide; the distance between the middle section of the limiting outer arc surface and the outer wall of the turret is larger than the distance between the two ends of the limiting outer arc surface and the outer wall of the turret.
11. The loosely conveying spiral tower conveyor of claim 10, wherein: the synchronous tooth-shaped wheels are arranged at two ends of the two free shafts respectively, the synchronous tooth-shaped wheels at the same side are connected through a synchronous tooth-shaped belt, the top of the outer side synchronous tooth-shaped belt is respectively driven by the arc limiting plate to be exposed out of the avoiding groove and supported below the net chain, and the shaft end of one free shaft is driven by a speed reduction motor.
12. The loosely conveying spiral tower conveyor of any one of claims 1 to 11, wherein: the center of the turret is provided with a turret center shaft, the upper end and the lower end of the turret center shaft are supported on the rack through bearings respectively, a main bearing seat is fixed at the center of the bottom of the rack, the main bearing seat is provided with a ball socket with an opening at the upper end, a matched spherical outside surface supporting body is supported in the ball socket, a supporting body counter bore is arranged in the spherical outside surface supporting body, a plane bearing is installed in the supporting body counter bore, and the lower end of the turret center shaft is supported on the plane bearing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210523343.0A CN114772173B (en) | 2022-05-13 | 2022-05-13 | Loosening conveying spiral tower conveyor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210523343.0A CN114772173B (en) | 2022-05-13 | 2022-05-13 | Loosening conveying spiral tower conveyor |
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| CN114772173A true CN114772173A (en) | 2022-07-22 |
| CN114772173B CN114772173B (en) | 2024-07-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226206A1 (en) * | 2022-05-24 | 2023-11-30 | 扬州市伟东传送设备有限公司 | Spiral tower mesh chain conveyor |
| WO2024093032A1 (en) * | 2022-11-02 | 2024-05-10 | 扬州市伟东传送设备有限公司 | Spiral-type mesh chain conveyor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114772173B (en) | 2024-07-30 |
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