Plate chain bucket elevator

Abstract

The utility model discloses a plate chain bucket elevator. Comprising a box body, a tail shaft, a driving shaft, a chain wheel, a chain and a hopper, the box body comprises a lower box body, a middle box body and an upper box body, bearing seats are arranged at the two ends of the tail shaft, vertical adjusting holes are formed in the lower box body, the bearing seats are arranged in the adjusting holes, the tail shaft is provided with a tensioning device, the tensioning device comprises a U-shaped seat, a pull rod and a pressing rod, and the U-shaped seat is fixedly connected to the bottom of the bearing seat; the pull rod penetrates through the U-shaped seat and is provided with a nut, the lower end of the pull rod is hinged to the connecting seat through a U-shaped fork and a pull ring assembly, and the connecting seat is hinged to the middle of the obliquely-arranged pressing rod through a pin shaft. One end of the pressing rod is hinged to the lower box body through a support, and the other end of the pressing rod extends out of the lower box body and is provided with a counterweight plate. The tail shaft is pulled downwards through the tensioning device, the distance between the tail shaft and the driving shaft is increased, and therefore the elongated chain can keep a certain tensioning degree all the time, a chain wheel and the chain are prevented from slipping, transmission stability is guaranteed, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to conveying equipment, in particular to a plate chain bucket elevator. Background Art

[0002] In heavy industrial production fields such as mining, building materials, metallurgy, chemicals, and coal, it is often necessary to lift large amounts of materials to a certain height or store them in huge silos. For example, limestone aggregates in a sand and gravel aggregate production line need to be transferred to the next process or other conveying equipment. In this case, plate chain bucket elevators are inevitably used. The chain of a plate chain bucket elevator will deform during use, and the increased chain length will affect the stability of the transmission.

[0003] Currently, plate chain bucket elevators on the market are primarily used to transport small and medium-sized particles or fine powder materials (generally with a particle size of ≤60). However, some special applications require the lifting of materials with very large particle sizes (generally with a particle size range of 60-150). When large particles are continuously added to the hopper, they can cause irregular impacts on the cutting edges of the front and rear bucket plates, easily damaging the hopper and increasing maintenance costs. Utility Model Content

[0004] The utility model aims to solve the above technical problems, thereby providing a plate chain bucket elevator with stable production and low maintenance cost.

[0005] The utility model solves the technical problem and adopts the following technical solutions:

[0006] A plate chain bucket elevator includes a box body, a tail shaft, a drive shaft, a sprocket, a chain and a hopper. The box body includes a lower box body, an intermediate box body and an upper box body. Both ends of the tail shaft are provided with bearing seats.

[0007] The lower box body is provided with a vertical adjustment hole, the bearing seat is placed in the adjustment hole, the tail shaft is provided with a tensioning device, the tensioning device includes a U-shaped seat, a pull rod and a pressure rod, the U-shaped seat is fixed to the bottom of the bearing seat, the pull rod passes through the U-shaped seat and is installed with a nut, the lower end of the pull rod is hinged to the connecting seat through a U-shaped fork and a pull ring assembly, and the connecting seat is hinged to the middle part of the inclined pressure rod through a pin shaft;

[0008] One end of the pressure rod is hinged to the lower box body through a support, and the other end of the pressure rod extends out of the lower box body and a counterweight plate is installed on the upper part.

[0009] Compared with the prior art, the present invention adopting the above technical solution has the following beneficial effects:

[0010] The tail shaft is pulled down by the tensioning device to increase the distance between the tail shaft and the drive shaft, so that the extended chain always maintains a certain tension, preventing the sprocket and chain from slipping, ensuring the stability of the transmission and reducing maintenance costs.

[0011] Furthermore, the optimization scheme of the present invention is:

[0012] The connecting seat comprises a connecting seat body and an ear plate. The cross section of the connecting seat body is an inverted L shape, and the ear plate is provided on the horizontal part of the connecting seat body.

[0013] The pull ring assembly comprises an upper pull ring and a lower pull ring. The upper pull ring is connected to the U-shaped fork through a first pin shaft, and the lower pull ring is hinged to the ear plate of the connecting seat through a second pin shaft.

[0014] The support includes a base plate, a shaft and a rib plate. The shaft is vertically fixed to the outer plate surface of the base plate. A rib plate is provided between the shaft and the base plate. The outer end of the shaft is hinged to the pressure rod.

[0015] The counterweight plate is strip-shaped, and both ends of the counterweight plate are respectively connected to the pressure rods.

[0016] A locking mechanism is provided between the pull rod and the lower box body, and the locking mechanism includes a cross bar, an outer wedge block, an inner wedge block, a slide groove and a heavy hammer. A cross bar is provided between the outer ends of the two pressure rods, and an outer wedge block is fixedly connected to the inner side of the middle of the cross bar. The outer wedge block cooperates with the inner wedge block, and the inner wedge block is slidably connected to the vertical slide groove. The slide groove is fixed to the lower box body, and a heavy hammer is hung at the bottom of the inner wedge block.

[0017] A rib is provided on the outer side of the cross bar and directly opposite to the outer wedge.

[0018] The hopper includes a front bucket plate, a rear bucket plate, a bucket bottom plate and a bucket lip plate. Rigid stabilizing columns are respectively provided on the outer sides of one end of the bucket lip plate of the front bucket plate and the rear bucket plate. The cross-section of the rigid stabilizing columns is angular, and a reinforcing plate is provided on one end of the bucket lip plate of the bucket bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a plate chain bucket elevator according to an embodiment of the present utility model;

[0020] Figure 2 This is a front view of the tensioning device according to an embodiment of the present utility model;

[0021] Figure 3 for Figure 2 A top view of

[0022] Figure 4 for Figure 2 AA section view;

[0023] Figure 5 for Figure 2 BB cross-sectional view;

[0024] Figure 6 This is a front view of a pull rod according to an embodiment of the present utility model;

[0025] Figure 7 for Figure 6 Left view of;

[0026] Figure 8 This is a front view of the connecting seat of an embodiment of the utility model;

[0027] Figure 9 for Figure 8 Left view of;

[0028] Figure 10 This is a front view of a support according to an embodiment of the present utility model;

[0029] Figure 11 for Figure 10 Left view of;

[0030] Figure 12 A top view of the locking mechanism of an embodiment of the present utility model;

[0031] Figure 13 A cross-sectional view of a locking mechanism according to an embodiment of the present invention;

[0032] Figure 14 for Figure 13 Figure C of

[0033] Figure 15 This is a schematic structural diagram of a hopper according to an embodiment of the present utility model.

[0034] In the figure: box body 1; lower box body 1-1; middle box body 1-2; upper box body 1-3; bearing seat 2; chain bucket 3; front bucket plate 3-1; rear bucket plate 3-2; bucket bottom plate 3-3; bucket lip plate 3-4; rigid stabilizing column 3-5; reinforcement plate 3-6; U-shaped seat 4; pull rod 5; screw portion 5-1; U-shaped fork 5-2; first pin 6; pull ring assembly 7; upper pull ring 7-1; lower pull ring 7-2; connecting seat 8; connecting seat body 8-1; ear plate 8-2; second pin 9; third pin 10; pressure rod 11; support 12; bottom plate 12-1; shaft 12-2; rib plate 12-3; counterweight plate 13; cross bar 14; outer wedge block 15; inner wedge block 16; slide chute 17; heavy hammer 18. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0037] See also Figure 1 This embodiment provides a plate chain bucket elevator, which is primarily composed of a housing 1, a tail shaft, a drive shaft, sprockets, a chain, and a hopper 3. The housing 1 is composed of a lower housing 1-1, an intermediate housing 1-2, and an upper housing 1-3. The lower housing 1-1 and the upper housing 1-3 are each provided with a feed inlet and a discharge outlet. A drive shaft is rotatably mounted within the upper housing 1-3 and driven by a drive mechanism. The tail shaft is rotatably mounted within the lower housing 1-1 via a bearing seat 2. Sprockets are mounted at each end of the drive shaft and the tail shaft, and a chain drives the sprockets. Multiple chain buckets 3 are mounted on the chain.

[0038] The two side panels of the lower box body 1-1 are provided with vertical adjustment holes. The side panels are detachably connected to the frame of the lower box body 1-1. The bearing seat 2 is placed in the adjustment hole. The bearing seat 2 is slidably and sealedly connected to the side panels. The tail shaft is provided with a tensioning device ( Figure 2-Figure 5 As shown in the figure, the tensioning device mainly consists of a U-shaped seat 4, a pull rod 5, a first pin 6, a pull ring assembly 7, a connecting seat 8, a second pin 9, a third pin 10, a pressure rod 11, a support 12 and a counterweight plate 13. The two U-shaped seats 4 are welded to the bottom of the outer ends of the two bearing seats 2 respectively. The pull rod 5 ( Figure 6 、 Figure 7 The screw portion 5-1 of the screw portion 5-1 passes through the horizontal portion of the U-shaped seat 4 and is installed with a nut. A U-shaped fork 5-2 is welded to the lower end of the screw portion 5-1. The U-shaped fork 5-2 is hinged to the upper pull ring 7-1 of the pull ring assembly 7 through the first pin 6. The lower pull ring 7-2 of the pull ring assembly 7 is hinged to the connecting seat 8. The connecting seat 8 is composed of a connecting seat body 8-1 and an ear plate 8-2 ( Figure 8 、 Figure 9 As shown), the cross section of the connecting seat body 8-1 is an inverted L-shape, and two ear plates 8-2 are welded on the horizontal portion of the connecting seat body 8-1. The lower pull ring 7-2 and the ear plate 8-2 are hingedly connected by a second pin shaft 9.

[0039] The vertical part of the connecting seat body 8-1 is hinged to the middle part of the pressure rod 11 through the third pin 10. The material of the pressure rod 11 is channel steel. The left end of the pressure rod 11 is hinged to the lower box body 1-1 through the support 12. The support 12 is composed of a bottom plate 12-1, a shaft 12-2 and a rib plate 12-3 ( Figure 10 、 Figure 11As shown, the bottom plate 12-1 is bolted to the lower housing 1-1. A shaft 12-2 is welded perpendicularly to the outer surface of the bottom plate 12-1. A rib 12-3 is welded between the shaft 12-2 and the bottom plate 12-1. The outer end of the shaft 12-2 is hinged to the compression rod 11. The left ends of the two compression rods 11 extend out of the lower housing 1-1. A plurality of counterweight plates 13 are mounted between the left ends of the two compression rods 11 and are bolted to the compression rods 11.

[0040] After the chain is stretched and deformed after long-term use, the pressure rod 11 rotates downward by a certain angle under the action of the gravity of the counterweight plate 13. The pressure rod 11 pulls the bearing seat 2 downward through the tensioning device, so that the bearing seat 2 drives the tail shaft to move downward by a certain distance, thereby causing the tail shaft to tighten the chain and keep the chain at a certain tension.

[0041] In order to prevent the pressure rod 11 from being affected by vibration during operation and affecting the tension of the chain, a locking mechanism is provided between the pressure rod 11 and the lower box 1-1. The locking mechanism is mainly composed of a crossbar 14, an outer wedge 15, an inner wedge 16, a slide 17 and a heavy hammer 18 ( Figure 12-14 (As shown in the figure), a crossbar 14 is welded between the outer ends of the two compression rods 11. An outer wedge 15 is welded to the inner side of the middle portion of the crossbar 14. The outer wedge 15 cooperates with the inner wedge 16, which is slidably connected to a vertical chute 17 welded to the lower housing 1-1. A weight 18 is suspended from the bottom of the inner wedge 16. When the compression rod 11 rotates downward, it drives the outer wedge 15 downward. Under the force of its own weight and the weight 18, the inner wedge 16 slides downward along the chute 17. The outer wedge 15 holds the inner wedge 16 in place, stabilizing the compression rod 11 and preventing it from rebounding due to vibration. Ribs are welded to the outside of the crossbar 14, directly opposite the outer wedge 15, to prevent deformation in the middle portion of the crossbar 14.

[0042] The hopper 3 is mainly composed of a front hopper plate 3-1, a rear hopper plate 3-2, a hopper bottom plate 3-3, a hopper lip plate 3-4 and a rigid stabilizing column 3-5 ( Figure 15 As shown in the figure, a rigid stabilizing column 3-5 is welded to the outer side of one end of the bucket lip plate 3-4 of the front bucket plate 3-1 and the rear bucket plate 3-2. The cross section of the rigid stabilizing column 3-5 is angular. A reinforcing plate 3-6 is provided at one end of the bucket lip plate 3-4 of the bucket bottom plate 3-3. The rigid stabilizing column 3-5 increases the strength of the hopper 3, thereby increasing its service life and reducing the maintenance rate.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A plate chain bucket elevator, comprising a housing, a tail shaft, a drive shaft, a sprocket, a chain and a hopper, wherein the housing comprises a lower housing, an intermediate housing and an upper housing, and bearing seats are provided at both ends of the tail shaft, characterized in that: The lower box body is provided with a vertical adjustment hole, the bearing seat is placed in the adjustment hole, the tail shaft is provided with a tensioning device, the tensioning device includes a U-shaped seat, a pull rod and a pressure rod, the U-shaped seat is fixed to the bottom of the bearing seat, the pull rod passes through the U-shaped seat and is installed with a nut, the lower end of the pull rod is hinged to the connecting seat through a U-shaped fork and a pull ring assembly, and the connecting seat is hinged to the middle part of the inclined pressure rod through a pin shaft; One end of the pressure rod is hinged to the lower box body through a support, and the other end of the pressure rod extends out of the lower box body and a counterweight plate is installed on the upper part.

2. The plate chain bucket elevator according to claim 1, characterized in that: The connecting seat comprises a connecting seat body and an ear plate. The cross section of the connecting seat body is an inverted L shape, and the ear plate is provided on the horizontal part of the connecting seat body.

3. The plate chain bucket elevator according to claim 1, characterized in that: The pull ring assembly comprises an upper pull ring and a lower pull ring. The upper pull ring is connected to the U-shaped fork through a first pin shaft, and the lower pull ring is hinged to the ear plate of the connecting seat through a second pin shaft.

4. The plate chain bucket elevator according to claim 1, characterized in that: The support includes a base plate, a shaft and a rib plate. The shaft is vertically fixed to the outer plate surface of the base plate. A rib plate is provided between the shaft and the base plate. The outer end of the shaft is hinged to the pressure rod.

5. The plate chain bucket elevator according to claim 1, characterized in that: The counterweight plate is strip-shaped, and both ends of the counterweight plate are respectively connected to the pressure rods.

6. The plate chain bucket elevator according to claim 1, characterized in that: A locking mechanism is provided between the pull rod and the lower box body, and the locking mechanism includes a cross bar, an outer wedge block, an inner wedge block, a slide groove and a heavy hammer. A cross bar is provided between the outer ends of the two pressure rods, and an outer wedge block is fixedly connected to the inner side of the middle of the cross bar. The outer wedge block cooperates with the inner wedge block, and the inner wedge block is slidably connected to the vertical slide groove. The slide groove is fixed to the lower box body, and a heavy hammer is hung at the bottom of the inner wedge block.

7. The plate chain bucket elevator according to claim 6, characterized in that: A rib is provided on the outer side of the cross bar and directly opposite to the outer wedge.

8. The plate chain bucket elevator according to claim 1, characterized in that: The hopper includes a front bucket plate, a rear bucket plate, a bucket bottom plate and a bucket lip plate. Rigid stabilizing columns are respectively provided on the outer sides of one end of the bucket lip plate of the front bucket plate and the rear bucket plate. The cross-section of the rigid stabilizing columns is angular, and a reinforcing plate is provided on one end of the bucket lip plate of the bucket bottom plate.

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