An air spring assembly for large vibrating screens

Abstract

The present invention relates to the technical field of vibrating screens, and specifically to an air spring assembly for large vibrating screens, wherein the connecting seat comprises a right-angle folded plate and a cylinder fixed to the top seat, the air spring comprises a curved bag body and an annular end plate, the upper sealing member comprises an upper circular plate fitted to the top annular end plate, the upper connecting member comprises a connecting plate fitted to the upper circular plate and an arc block fixed to the top surface of the connecting plate, the side wall of the arc block is provided with a sleeve hole, the lower sealing member comprises a lower circular plate fitted to the bottom annular end plate, a supporting column fixed to the top surface of the lower circular plate and an air pressure sensor clamped on the supporting column, the lower connecting member comprises a disk body fitted to the lower circular plate and a square sleeve fixed to the bottom surface of the disk body, the side wall of the vertical plate on the top surface of the bottom seat is provided with a square column; an intake valve and an exhaust valve are sleeved in the connecting hole on the side wall of the disk body, and upper and lower limit members are respectively provided at the outer ends of the cylinder and the square column; the problems of easy resonance, high noise, insufficient support stability, short life and high cost of use of the spring assembly of large vibrating screens are solved.

Description

Technical Field

[0001] The invention relates to the technical field of vibrating screens, in particular to an air spring assembly for a large vibrating screen. Background Art

[0002] Vibrating screen is a screening device that uses the principle of vibration motor excitation to make the material be thrown up on the screen surface and move forward in a straight line to achieve the purpose of screening with a reasonably matched screen. Among them, large-scale vibrating screens are widely used in mineral processing and other fields due to their large processing capacity.

[0003] Due to the large size and weight of large vibrating screens, the spring assembly, which serves as a support, buffer and shock-absorbing structure, is one of the main components of large vibrating screens. The spring assembly of commonly used large vibrating screens generally includes a top seat, a bottom seat and a metal coil spring. The top seat is fixed to the front and rear ends of the outer wall of the screen frame, the top end of the metal coil spring is connected between the top seat and the bottom seat, and the bottom seat is fixedly connected to the top of the support.

[0004] However, metal coil springs often break in corrosive environments and under overload conditions, and are prone to irregular vibration and resonance when starting or stopping, which not only affects the stability of the large vibrating screen support, but also generates a lot of noise and causes resonance damage to the ground and buildings. In addition, the top and bottom ends of each spring unit in the spring assembly are fixedly welded to the top seat and the bottom seat. When a spring unit is damaged, the entire spring assembly must be replaced, which is not only difficult but also increases the cost. Summary of the invention

[0005] The purpose of the present invention is to provide an air spring assembly for a large vibrating screen, which is used to solve the problems in the prior art that the spring assembly of a large vibrating screen is prone to resonance, loud noise, insufficient supporting stability, short life and high cost of use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air spring assembly for a large vibrating screen, the connecting seat comprising a right-angled folded plate with a top surface fitted and fixed to the bottom surface of the top seat and a plurality of cylinders with inner ends vertically fixed to the side walls of the bottom of the right-angled folded plate, the air spring comprising a curved bladder body and annular end plates fixed to the top and bottom ends of the curved bladder body, the upper sealing member comprising an upper circular plate detachably fitted and connected to the top surface of the annular end plate at the top, the upper connecting member comprising a connecting plate detachably fitted and connected to the top surface of the upper circular plate at the bottom surface and an arc block fixed to the middle part of the top surface of the connecting plate, the side wall of the arc block being provided with a sleeve hole matching the sleeve of the cylinder, the lower sealing member comprising a top surface The outer edge of the lower circular plate is detachably connected to the bottom surface of the annular end plate at the bottom, a support column is fixed to the middle part of the top surface of the lower circular plate, and an air pressure sensor is clamped on the outer peripheral wall of the support column. The lower connecting part includes a disk body whose top surface is detachably connected to the bottom surface of the lower circular plate and a square sleeve fixed to the center of the bottom surface of the disk body. The side wall of the disk body is provided with two connecting holes whose inner ends are respectively connected to the inner cavity of the curved sac body. A vertical plate is vertically fixed to the inner side of the top surface of the bottom seat, and a plurality of square columns that are matched with the square sleeve are vertically fixed to the side wall of the vertical plate; an intake valve and an exhaust valve are respectively installed in the two connecting holes, and an upper limit member and a lower limit member are respectively detachably fixed to the outer ends of the cylinder and the square column.

[0007] Preferably, a positioning column is vertically fixed in the middle of the bottom surface of the upper circular plate, a circular groove is centrally provided on the top surface of the support column, a composite spring is sleeved in the circular groove, and a column cavity is provided in the center of the composite spring to match the positioning column sleeve.

[0008] Preferably, the top surface of the annular end plate at the top of the air spring is evenly and fixedly sleeved with multiple threaded sleeves along the circumferential direction, the threaded sleeves are threadedly sleeved with connecting screws, the connecting plate is provided with a through hole 1 corresponding to the threaded sleeves one by one near the outer edge, and the upper circular plate is provided with a through hole 5 corresponding to the threaded sleeves one by one near the outer edge, and the top of the connecting screw passes through the through hole 5 and the through hole 1 in sequence and then the threaded sleeve is provided with a clamping nut.

[0009] Preferably, the bottom surface of the annular end plate at the bottom of the air spring is evenly and fixedly sleeved with multiple threaded sleeves along the circumferential direction, the threaded sleeves are threadedly sleeved with connecting screws, the lower circular plate is provided with six through-holes corresponding to the threaded sleeves one by one near the outer edge, and the disk body is provided with two through-holes corresponding to the threaded sleeves one by one near the outer edge, and the bottom of the connecting screw passes through the six through-holes and the two through-holes in sequence and is threadedly sleeved with a clamping nut.

[0010] Preferably, an operating hole is provided in the middle portion of the connecting screw along its radial direction.

[0011] Preferably, sealing gaskets are provided between the upper circular plate and the annular end plate at the top, between the lower circular plate and the annular end plate at the bottom, and between the lower circular plate and the disk body.

[0012] Preferably, the outer peripheral wall of the support column is vertically provided with side grooves that are snap-fitted with the air pressure sensor, and the bottom of the outer peripheral wall of the support column is provided with side holes at positions on both sides of the side grooves, and the lower circular plate is provided with through hole one at positions corresponding to the inner ends of the side holes, and the lower circular plate is provided with through hole two at positions corresponding to the bottom ends of the side grooves. The top surface of the disk body is provided with an trachea head and a wire pipe head whose top ends are respectively sleeved and matched with through hole one and through hole two, the inner end of the connecting hole is connected with the bottom end of the inner cavity of the trachea head, and the outer peripheral wall of the disk body is provided with a wiring hole whose inner end is connected with the bottom end of the wire pipe head at a position between the two connecting holes, and the wiring hole is provided with a wiring terminal.

[0013] Preferably, a slot one is radially provided near the outer end of the cylinder, a screw hole one is provided at the center of the outer end surface of the cylinder, the upper limit member includes an arc-shaped plate clamped on the outer end of the cylinder and a strip fixed to the middle of the inner arc surface of the arc-shaped plate and plugged into and matched with the slot one, a through hole three is provided in the middle of the strip, the inner thread of the screw hole one is fitted with a fixing bolt, and the inner end of the fixing bolt is sleeved in the through hole three.

[0014] Preferably, a slot two is provided between the front and rear walls near the outer end of the square column, a screw hole two is provided at the center of the outer end face of the square column, the lower limit member includes a slot that is horizontally snap-fitted with the outer end of the square column and an insert strip that is fixed to the inner cavity of the slot and is plug-fitted with the slot two, a through hole four aligned with the screw hole two is provided on the slot and the insert strip, a fixing bolt is mounted on the inner thread of the screw hole two, and the inner end of the fixing bolt is sleeved with the through hole four.

[0015] Preferably, the bottom plate of the top seat and the horizontal plate of the right-angle folded plate are jointly sleeved with a plurality of stitching bolts, and a plurality of rib plates are fixed between the top surface of the bottom seat and the side wall of the vertical plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention relates to an air spring assembly for a large vibrating screen, which uses an air spring to reduce irregular vibration and resonance and improve the support stability of the large vibrating screen; in addition, the air spring can flexibly adjust the pressure inside the curved bag body, thereby facilitating adaptation to different load requirements.

[0018] 2. The air spring in an air spring assembly for a large vibrating screen involved in the present invention is easy to assemble with a connecting seat and a bottom seat through an upper connecting piece and a lower connecting piece, so that when a single air spring is damaged, it can be flexibly and conveniently replaced without replacing the entire spring assembly. This not only reduces the difficulty of replacement and improves replacement efficiency, but also greatly reduces the use cost of the spring assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the top seat of the present invention;

[0023] Figure 5 It is a schematic diagram of a first three-dimensional structure of the connecting socket of the present invention;

[0024] Figure 6 It is a schematic diagram of a second three-dimensional structure of the connecting socket of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the bottom seat of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the upper connecting member of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the air spring of the present invention;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the lower connecting member of the present invention;

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the upper limit member of the present invention;

[0030] Fig.12 It is a schematic diagram of the three-dimensional structure of the lower limit member of the present invention;

[0031] Fig.13 It is a schematic diagram of the three-dimensional structure of the upper sealing member of the present invention;

[0032] Fig.14 It is a schematic diagram of the three-dimensional structure of the connecting screw of the present invention;

[0033] Fig.15It is a schematic diagram of the three-dimensional structure of the lower sealing member of the present invention;

[0034] Fig.16 It is a schematic diagram of the three-dimensional structure of the composite spring of the present invention.

[0035] In the figure: 1-top seat;

[0036] 2-connecting seat; 2.1-right angle folding plate; 2.2-cylinder; 2.2.1-slot 1; 2.2.2-screw hole 1;

[0037] 3-Suture bolts;

[0038] 4- bottom seat; 4.1- vertical plate; 4.2- square column; 4.2.1- slot 2; 4.2.2- screw hole 2; 4.3- rib plate;

[0039] 5-upper connecting piece; 5.1-connecting plate; 5.1.1-perforation 1; 5.2-cambered block; 5.2.1-sleeve hole;

[0040] 6-air spring; 6.1-curved bladder; 6.2-annular end plate; 6.3-threaded sleeve;

[0041] 7-lower connector; 7.1-disk body; 7.1.1-perforation 2; 7.1.2-connection hole; 7.1.3-wiring hole; 7.2-square sleeve; 7.3-trachea head; 7.4-wire head;

[0042] 8-intake valve;

[0043] 9- Exhaust valve;

[0044] 10- Terminal;

[0045] 11-upper limit piece; 11.1-arc plate; 11.2-slats; 11.2.1-perforation three;

[0046] 12-Fixing bolt;

[0047] 13-lower limiter; 13.1-slot; 13.2-insertion strip; 13.3-fourth perforation;

[0048] 14-upper seal; 14.1-upper circular plate; 14.1.1-perforation five; 14.2-positioning column;

[0049] 15- Sealing gasket;

[0050] 16-connecting screw; 16.1-operating hole;

[0051] 17-Compression nut;

[0052] 18-lower seal; 18.1-lower circular plate; 18.1.1-through hole six; 18.1.2-through hole one; 18.1.3-through hole two; 18.2-support column; 18.2.1-circular groove; 18.2.2-side hole; 18.2.3-side groove; 18.3-air pressure sensor;

[0053] 19-Compound spring; 19.1-Column cavity. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] See also Figure 1-16 The present invention provides a technical solution, an air spring assembly for a large vibrating screen, wherein the connecting seat 2 comprises a right-angle folded plate 2.1 whose top surface is fitted and fixed to the bottom surface of the top seat 1 and a plurality of cylinders 2.2 whose inner ends are vertically fixed to the bottom side walls of the right-angle folded plate 2.1, the air spring 6 comprises a curved bladder body 6.1 and an annular end plate 6.2 fixed to the top and bottom ends of the curved bladder body 6.1, the upper sealing member 14 comprises an upper circular plate 14.1 detachably fitted and connected to the top surface of the top annular end plate 6.2, the upper connecting member 5 comprises a connecting plate 5.1 detachably fitted and connected to the top surface of the upper circular plate 14.1 and an arc surface block 5.2 fixed to the middle part of the top surface of the connecting plate 5.1, the side wall of the arc surface block 5.2 is provided with a sleeve hole 5.2.1 that is sleeved and matched with the cylinder 2.2, the lower sealing member 18 comprises a top surface outer edge detachably fitted and connected to the bottom annular The lower circular plate 18.1 on the bottom surface of the end plate 6.2, the support column 18.2 fixed to the middle part of the top surface of the lower circular plate 18.1 and the air pressure sensor 18.3 clamped on the outer peripheral wall of the support column 18.2, the lower connecting member 7 includes a disc body 7.1 whose top surface is detachably connected to the bottom surface of the lower circular plate 18.1 and a square sleeve 7.2 fixed to the center of the bottom surface of the disc body 7.1, the side wall of the disc body 7.1 is provided with two connecting holes 7.1.2 whose inner ends are respectively connected to the inner cavity of the curved bladder body 6.1, the inner side of the top surface of the bottom seat 4 is vertically fixed with a vertical plate 4.1, and the side wall of the vertical plate 4.1 is vertically fixed with a plurality of square columns 4.2 that are sleeved and matched with the square sleeve 7.2; the two connecting holes 7.1.2 are respectively fitted with an intake valve 8 and an exhaust valve 9, and the outer ends of the circular column 2.2 and the square column 4.2 are respectively detachably fixed with an upper limit member 11 and a lower limit member 13.

[0056] In summary, when it is necessary to replace an air spring 6, first use the exhaust valve 9 to relieve the pressure on the curved bag body 6.1; then remove the upper limit member 11 and the lower limit member 13, and then the arc block 5.2 and the square sleeve 7.2 can be removed from the cylinder 2.2 and the square column 4.2 respectively, and then the upper connecting member 5, the lower connecting member 7, the upper sealing member 14 and the lower sealing member 18 can be removed from the top and bottom of the air spring 6.

[0057] Assemble the top of the new air spring 6 with the upper seal 14 and the upper connecting piece 5 in sequence, and then assemble the bottom of the air spring 6 with the lower seal 18 and the lower connecting piece 7 in sequence; fit the sleeve hole 5.2.1 and the square sleeve 7.2 onto the cylinder 2.2 and the square column 4.2 respectively; then fix the upper limit piece 11 and the lower limit piece 13 onto the outer ends of the cylinder 2.2 and the square column 4.2 respectively to limit and fix the arc block 5.2 and the square sleeve 7.2, and the assembly of the spring assembly can be completed.

[0058] Finally, according to the detection data of the air pressure sensor 18.3, the inner cavity of the curved bladder body 6.1 is inflated through the air intake valve 8, and when the air pressure sensor 18.3 detects the air pressure composite requirement, the air intake valve 8 is closed. The air intake valve 8 and the exhaust valve 9 are electromagnetic valves, respectively, and the output end of the air pressure sensor 18.3 is electrically connected to a control module, and the control module is a PLC control circuit, etc. The input ends of the air intake valve 8 and the exhaust valve are electrically connected to the output end of the control module, and the air intake valve 8 is connected to the air outlet end of the air compressor through an air pipe; so as to realize the automatic and intelligent control of inflation, unloading, and maintaining the pressure balance in the curved bladder body 6.1 during use.

[0059] In order to improve the overall support effect of the air spring 6 and alleviate the impact force borne by the air spring 6, a positioning column 14.2 is vertically fixed in the middle of the bottom surface of the upper circular plate 14.1, and a circular groove 18.2.1 is provided in the center of the top surface of the support column 18.2. A composite spring 19 is sleeved in the circular groove 18.2.1, and a column cavity 19.1 is provided in the center of the composite spring 19 to match the positioning column 14.2. That is, the composite spring 19 is supported and positioned by the positioning column 14.2 and the circular groove 18.2.1. Among them, the composite spring 19 is a metal coil spring or an elastic rubber column coated with a rubber layer.

[0060] The top surface of the annular end plate 6.2 at the top of the air spring 6 is evenly and fixedly sleeved with a plurality of threaded sleeves 6.3 along the circumferential direction, and the threaded sleeve 6.3 is internally threaded with a connecting screw 16, and a through hole 1 5.1.1 corresponding to the threaded sleeve 6.3 is provided near the outer edge of the connecting plate 5.1, and a through hole 5 14.1.1 corresponding to the threaded sleeve 6.3 is provided near the outer edge of the upper circular plate 14.1, and the top of the connecting screw 16 is sequentially penetrated through the through hole 5 14.1.1 and the through hole 1 5.1.1 and then threaded with a clamping nut 17. That is, the bottom thread of the connecting screw 16 is firstly sleeved in the threaded sleeve 6.3, and then the through hole 5 14.1.1 and the through hole 1 5.1.1 are sequentially sleeved on the top of the connecting screw 16, and finally the clamping nut 17 is installed and tightened, so that the upper circular plate 14.1, the connecting plate 5.1 and the annular end plate 6.2 at the top are fitted and connected.

[0061] The bottom surface of the annular end plate 6.2 at the bottom of the air spring 6 is evenly and fixedly sleeved with a plurality of threaded sleeves 6.3 along the circumferential direction, and the threaded sleeve 6.3 is internally threaded with a connecting screw 16. A sixth through-hole 18.1.1 corresponding to the threaded sleeve 6.3 is provided near the outer edge of the lower circular plate 18.1, and a second through-hole 7.1.1 corresponding to the threaded sleeve 6.3 is provided near the outer edge of the disc body 7.1. The bottom of the connecting screw 16 passes through the sixth through-hole 18.1.1 and the second through-hole 7.1.1 in sequence, and then a compression nut 17 is threadedly sleeved. That is, first, the top thread of the connecting screw 16 is sleeved into the threaded sleeve 6.3 on the bottom annular end plate 6.2, and then the sixth through hole 18.1.1 and the second through hole 7.1.1 are sleeved on the bottom of the connecting screw 16 in sequence, and finally the clamping nut 17 is installed, and the clamping nut 17 is pressed against the bottom surface of the disk body 7.1 to achieve the fitting connection between the bottom annular end plate 6.2, the lower circular plate 18.1 and the disk body 7.1.

[0062] An operating hole 16.1 is provided in the middle of the connecting screw 16 along its radial direction. That is, a rod-shaped tool is inserted into the operating hole 16.1 to facilitate the rotation of the connecting screw 16.

[0063] In order to improve the air tightness of the air spring 6, sealing gaskets 15 are respectively provided between the upper circular plate 14.1 and the top annular end plate 6.2, between the lower circular plate 18.1 and the bottom annular end plate 6.2, and between the lower circular plate 18.1 and the disc body 7.1.

[0064] The outer wall of the support column 18.2 is vertically provided with a side groove 18.2.3 that is engaged with the air pressure sensor 18.3. The bottom of the outer wall of the support column 18.2 is provided with side holes 18.2.2 at both sides of the side groove 18.2.3. The lower circular plate 18.1 is provided with through holes 18.1.2 at positions corresponding to the inner ends of the side holes 18.2.2. The lower circular plate 18.1 is provided with through holes 18.1.2 at positions corresponding to the bottom ends of the side grooves 18.2.3. 3. The top surface of the disk body 7.1 is provided with an air pipe head 7.3 and a wire pipe head 7.4, the top ends of which are respectively matched with the through hole 1 18.1.2 and the through hole 2 18.1.3. The inner end of the connecting hole 7.1.2 is connected with the bottom end of the inner cavity of the air pipe head 7.3. The outer peripheral wall of the disk body 7.1 is provided with a wiring hole 7.1.3, the inner end of which is connected with the bottom end of the wire pipe head 7.4, and the wiring hole 7.1.3 is provided with a wiring terminal 10. The output line of the air pressure sensor 18.3 passes through the through hole 2 18.1.3, the wire pipe head 7.4 and the wiring hole 7.1.3 in sequence, and is connected to the wiring terminal 10, which is convenient for connecting with the control module through the signal line through the wiring terminal 10.

[0065] A slot 2.2.1 is radially provided near the outer end of the cylinder 2.2, a screw hole 2.2.2 is provided at the center of the outer end surface of the cylinder 2.2, the upper limit member 11 comprises an arc plate 11.1 clamped on the outer end of the cylinder 2.2 and a slat 11.2 fixed to the middle of the inner arc surface of the arc plate 11.1 and plugged and matched with the slot 2.2.1, a through hole 11.2.1 is provided in the middle of the slat 11.2, and a fixing bolt 12 is sleeved on the inner thread of the screw hole 2.2.2, and the inner end of the fixing bolt 12 is sleeved in the through hole 11.2.1. That is, when installing the upper limit member 11, first align the slat 11.2 and insert it into the slot 1 2.2.1. At this time, the arc plate 11.1 is stuck on the outer peripheral wall of the cylinder 2.2, and the ends of the arc plate 11.1 and the slat 11.2 are respectively in contact with the outer side wall of the arc block 5.2. At this time, the screw hole 1 2.2.2 is aligned with the through hole 3 11.2.1, and the fixing bolt 12 is installed to complete the installation of the upper limit member 11; when removing the upper limit member 11, first remove the fixing bolt 12, and then pull out the upper limit member 11 radially.

[0066] A slot 2 4.2.1 is provided between the front and rear walls near the outer end of the square column 4.2, a screw hole 2 4.2.2 is provided at the center of the outer end surface of the square column 4.2, the lower limit member 13 comprises a slot 13.1 that is horizontally engaged with the outer end of the square column 4.2 and an insert strip 13.2 that is fixed to the inner cavity of the slot 13.1 and is plugged with the slot 2 4.2.1, a through hole 4 13.3 that is aligned with the screw hole 2 4.2.2 is provided on the slot 13.1 and the insert strip 13.2, a fixing bolt 12 is provided on the inner thread of the screw hole 2 4.2.2, and the inner end of the fixing bolt 12 is sleeved with the through hole 4 13.3. When installing the lower stopper 13, first align the inserting strip 13.2 with the second slot 4.2.1 and insert it so that the slot 13.1 is stuck at the outer end of the square column 4.2. At this time, the inner side of the slot 13.1 fits the outer side wall of the square sleeve 7.2, and the fourth through hole 13.3 is aligned with the second screw hole 4.2.2. Install the fixing bolt 12 to complete the installation of the lower stopper 13. When removing the lower stopper 13, first remove the fixing bolt 12, and then pull out the lower stopper 13 as a whole in the horizontal direction.

[0067] The bottom plate of the top seat 1 and the horizontal plate of the right-angle folded plate 2.1 are sleeved with a plurality of stitching bolts 3, and a plurality of ribs 4.3 are fixed between the top surface of the bottom seat 4 and the side wall of the vertical plate 4.1. That is, the top of the top seat 1 is fixedly connected to the front and rear ends of the two side walls of the large vibrating screen frame, and then the connecting seat 2 is fixed to the bottom of the top seat 1 through the stitching bolts 3. The setting of the ribs 4.3 increases the supporting strength of the vertical plate 4.1.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air spring assembly for a large vibrating screen, comprising a top seat (1) and a bottom seat (4), characterized in that: Also includes: A connecting seat (2), the connecting seat (2) comprising a right-angle folded plate (2.1) whose top surface is fixedly attached to the bottom surface of the top seat (1) and a plurality of cylinders (2.2) whose inner ends are vertically fixed to the bottom side walls of the right-angle folded plate (2.1); An air spring (6), the air spring (6) comprising a curved bladder body (6.1) and an annular end plate (6.2) fixed to the top and bottom ends of the curved bladder body (6.1); An upper sealing member (14), the upper sealing member (14) comprising an upper circular plate (14.1) detachably connected to the top surface of the annular end plate (6.2); An upper connecting member (5), the upper connecting member (5) comprising a connecting plate (5.1) whose bottom surface is detachably connected to the top surface of the upper circular plate (14.1) and an arc surface block (5.2) fixed to the middle of the top surface of the connecting plate (5.1), the side wall of the arc surface block (5.2) being provided with a sleeve hole (5.2.1) that is sleeved and matched with the cylinder (2.2); A lower sealing member (18), the lower sealing member (18) comprising a lower circular plate (18.1) whose top surface outer edge is detachably attached to the bottom surface of the annular end plate (6.2), a support column (18.2) fixed to the middle of the top surface of the lower circular plate (18.1), and an air pressure sensor (18.3) mounted on the outer peripheral wall of the support column (18.2); A lower connecting member (7), the lower connecting member (7) comprising a disc body (7.1) whose top surface is detachably connected to the bottom surface of the lower circular plate (18.1) and a square sleeve (7.2) fixed to the center of the bottom surface of the disc body (7.1); the side wall of the disc body (7.1) is provided with two connecting holes (7.1.2) whose inner ends are respectively connected to the inner cavity of the curved bladder body (6.1); a vertical plate (4.1) is vertically fixed to the inner side of the top surface of the bottom seat (4); and a plurality of square columns (4.2) that are sleeved and matched with the square sleeve (7.2) are vertically fixed to the side wall of the vertical plate (4.1); An intake valve (8) and an exhaust valve (9) are respectively mounted in the two connecting holes (7.1.2); an upper limit piece (11) and a lower limit piece (13) are respectively detachably fixed to the outer ends of the cylinder (2.2) and the square column (4.2); The outer wall of the support column (18.2) is vertically provided with a side groove (18.2.3) that is snap-fitted with the air pressure sensor (18.3); the bottom of the outer wall of the support column (18.2) is provided with side holes (18.2.2) at positions on both sides of the side groove (18.2.3); the lower circular plate (18.1) is provided with a through hole (18.1.2) at positions corresponding to the inner ends of the side holes (18.2.2); the lower circular plate (18.1) is provided with a through hole (18.1.2) at the bottom of the side groove (18.2.3) A second through hole (18.1.3) is provided at the position of the end of the plate body (7.1); the top surface of the plate body (7.1) is provided with a trachea head (7.3) and a wire pipe head (7.4) whose top ends are respectively sleeved and matched with the first through hole (18.1.2) and the second through hole (18.1.3); the inner end of the connecting hole (7.1.2) is connected to the bottom end of the inner cavity of the trachea head (7.3); the outer peripheral wall of the plate body (7.1) is provided with a wiring hole (7.4) whose inner end is connected to the bottom end of the wire pipe head (7.4) at a position between the two connecting holes (7.1.2). 7.1.3), the wiring hole (7.1.3) is provided with a wiring terminal (10).

2. The air spring assembly for a large vibrating screen according to claim 1, characterized in that: A positioning column (14.2) is vertically fixed in the middle of the bottom surface of the upper circular plate (14.1), a circular groove (18.2.1) is provided in the center of the top surface of the support column (18.2), a composite spring (19) is sleeved in the circular groove (18.2.1), and a column cavity (19.1) is provided in the center of the composite spring (19) to be sleeved and matched with the positioning column (14.2).

3. The air spring assembly for a large vibrating screen according to claim 1, characterized in that: The top surface of the annular end plate (6.2) at the top of the air spring (6) is evenly and fixedly sleeved with a plurality of threaded sleeves (6.3) along the circumferential direction, the threaded sleeves (6.3) are internally threaded with connecting screws (16), and the connecting plate (5.1) is provided with a through hole (16) corresponding to the threaded sleeves (6.3) near the outer edge. 5.1.1), the upper circular plate (14.1) is provided with five through holes (one-to-one corresponding to the threaded sleeve (6.3) near the outer edge. 14.1.1), the top of the connecting screw (16) passes through the five holes ( The rear threaded sleeve is provided with a locking nut (17) after the through hole (14.1.1) and the through hole (5.1.1).

4. The air spring assembly for a large vibrating screen according to claim 1, characterized in that: The bottom surface of the annular end plate (6.2) at the bottom of the air spring (6) is evenly and fixedly sleeved with a plurality of threaded sleeves (6.3) along the circumferential direction, the threaded sleeves (6.3) are internally threaded with connecting screws (16), and the lower circular plate (18.1) is provided with six through holes (6.3) corresponding to the threaded sleeves (6.3) near the outer edge. 18.1.1), the disc body (7.1) is provided with second through-holes (7.1.1) corresponding to the threaded sleeves (6.3) at a position close to the outer edge, and the bottom of the connecting screw (16) passes through the sixth through-holes ( The rear threaded sleeve of the second hole (18.1.1) and the second hole (7.1.1) is provided with a locking nut (17).

5. An air spring assembly for a large vibrating screen according to any one of claims 3 or 4, characterized in that: An operating hole (16.1) is provided in the middle of the connecting screw rod (16) along its radial direction.

6. The air spring assembly for a large vibrating screen according to claim 1, characterized in that: Sealing gaskets (15) are respectively provided between the upper circular plate (14.1) and the annular end plate (6.2) at the top, between the lower circular plate (18.1) and the annular end plate (6.2) at the bottom, and between the lower circular plate (18.1) and the disc body (7.1).

7. The air spring assembly for a large vibrating screen according to claim 1, characterized in that: The cylinder (2.2) is provided with a slot one (2.2.1) in the radial direction near the outer end, a screw hole one (2.2.2) is provided at the center of the outer end surface of the cylinder (2.2), the upper limit member (11) comprises an arc plate (11.1) clamped on the outer end of the cylinder (2.2) and a strip (11.2) fixed to the middle of the inner arc surface of the arc plate (11.1) and plugged into and matched with the slot one (2.2.1), and the strip (11.2) is provided with a through hole three ( 11.2.1), the inner thread of the screw hole 1 (2.2.2) is sleeved with a fixing bolt (12), and the inner end of the fixing bolt (12) is sleeved in the through hole 3 (11.2.1).

8. The air spring assembly for a large vibrating screen according to claim 1, characterized in that: A second slot (4.2.1) is provided between the front and rear walls near the outer end of the square column (4.2); a second screw hole (4.2.2) is provided at the center of the outer end surface of the square column (4.2); the lower stopper (13) comprises a slot (13.1) that is horizontally engaged with the outer end of the square column (4.2) and an inserting strip (13.2) that is fixed to the inner cavity of the slot (13.1) and is plugged with the second slot (4.2.1); a fourth through hole (13.3) that is aligned with the second screw hole (4.2.2) is provided on the slot (13.1) and the inserting strip (13.2); a fixing bolt (12) is sleeved on the inner thread of the second screw hole (4.2.2); the inner end of the fixing bolt (12) is sleeved with the fourth through hole (13.3).

9. The air spring assembly for a large vibrating screen according to claim 1, characterized in that: The bottom plate of the top seat (1) and the horizontal plate of the right-angle folded plate (2.1) are jointly sleeved with a plurality of stitching bolts (3), and a plurality of rib plates (4.3) are fixed between the top surface of the bottom seat (4) and the side wall of the vertical plate (4.1).

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