CN217595157U - Large sieving machine with parallel force system and balanced drive - Google Patents
Large sieving machine with parallel force system and balanced drive Download PDFInfo
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- CN217595157U CN217595157U CN202221677539.7U CN202221677539U CN217595157U CN 217595157 U CN217595157 U CN 217595157U CN 202221677539 U CN202221677539 U CN 202221677539U CN 217595157 U CN217595157 U CN 217595157U
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Abstract
A large screening machine with a parallel force system and balanced driving belongs to the field of vibrating screening machinery and solves the problem of balanced driving force of a proxy transmission part of the large screening machine. 2-5 vibration exciter mounting beams are arranged between two side plates of the screen frame; two or four forced synchronous gear exciters are arranged on each vibration exciter mounting beam and are installed together in series through transmission shafts to form a vibration exciter set. And a driving belt pulley is arranged on the transmission shaft at the middle position of each exciter group. The included angle between the action line L of the resultant force generated by the exciter group on each exciter mounting beam and the horizontal plane is beta. And the motor driving device is connected with a driving belt pulley on a transmission shaft of the exciter group, is arranged on the motor support, and the supporting legs of the motor support are positioned on two sides of the screen frame and are connected with the supporting seat of the screening machine. The large-scale sieving machine has the characteristics of balanced stress of the power transmission part, stable performance, compact structure and stable operation, and is suitable for sieving various materials.
Description
Technical Field
The utility model belongs to vibration screening machinery mainly relates to power part and the whole atress of reel even, and the parallel force system that throughput is big and screening efficiency is high is with balanced driven large-scale screening machine.
Background
In the existing large-scale linear vibrating screen, if the width of the screen surface is 4.2 m-5.5 m and the length is 7.3 m-12 m, the structure of a vibrator for driving the screen machine to work usually adopts a gear forced synchronous vibration exciter, namely a box type vibrator with an external eccentric block forced by a two-shaft gear. 2-4 vibrators are needed for the large-scale linear vibrating screen, the vibrators are intensively arranged on a vibrator mounting crossbeam above a screen frame, and a driving motor is arranged on one side of a screen machine. The structure causes unbalanced transmission of driving force of the transmission part, unbalanced stress of the whole screen frame, poor rigidity, low performance of the vibration exciter, short service life of the bearing and difficult improvement of the operation reliability of the screen frame. The structure also causes that the total exciting force can not be increased, and directly influences the processing capacity and the screening efficiency of the vibrating screen.
Disclosure of Invention
The utility model aims at providing a parallel force system and balanced driven large-scale screening machine, the resultant force line of action of each group's vibration exciter of this screening machine is parallel to each other, and the drive arrangement of vibration exciter is located the intermediate position of sieve case top, and power transmission part atress is balanced, and stable performance is reliable.
The utility model discloses a realize through following technical scheme, including reel, sifter, vibration exciter, motor drive, damping spring and supporting seat, the reel passes through damping spring to be installed on the supporting seat, and the vibration exciter passes through vibration exciter installation roof beam to be installed on the reel, characterized by: 2-5 vibration exciter mounting beams are independently arranged between two side plates of the screen frame; two or four gear forced synchronous vibration exciters are uniformly arranged on each vibration exciter mounting beam, and the two or four gear forced synchronous vibration exciters are mounted together in series through a transmission shaft to form a vibration exciter set; a driving belt pulley is arranged on the transmission shaft at the middle position of each exciter group; the included angle between the action line L of the resultant force generated by the exciter group on each exciter mounting beam and the horizontal plane is beta; the motor driving device connected with the driving belt pulley on the transmission shaft of the exciter group is arranged above the motor support, and the supporting legs of the motor support are positioned on two sides of the screen frame and connected with the supporting seat of the screening machine.
When the number of the vibration exciter mounting beams arranged between the two side plates of the screen frame is three or five, the action lines L of the resultant force generated by the vibration exciter group on the middle vibration exciter mounting beam pass through the participating vibration gravity center G of the screen machine, and the action lines L of the resultant force generated by the vibration exciter groups on the rest vibration exciter mounting beams are symmetrical to and parallel to the participating vibration gravity center G of the screen machine in the longitudinal plane passing through the participating vibration gravity center G of the screen machine; when the number of the vibration exciter mounting beams arranged between the two side plates of the screen frame is two or four, the vibration exciter groups on the vibration exciter mounting beams generate the action lines L of the resultant force, and are symmetrical and parallel to the vibration participating gravity centers G of the screen machine in the longitudinal plane passing through the vibration participating gravity centers G of the screen machine.
The included angle beta between the action line L of the resultant force generated by each exciter group and the horizontal plane is = 30-60 degrees.
The gear forced synchronization vibration exciter is a two-shaft box type vibration exciter with gear forced synchronization and an external eccentric block.
The driving belt pulley arranged on the transmission shaft at the middle position of each exciter group is positioned in the middle of the transmission shaft.
The beneficial effects of the utility model are that, the drive arrangement of screening machine is located the intermediate position of gear forced synchronization exciter group, and power transmission part atress is balanced, the dependable performance, long service life, and whole sieve machine compact structure, overall dimension and occupation of land space are little. Many vibration exciter installation roof beams and many small-size bearing vibration exciters can be arranged on the reel, and the reel rigidity is good, and vibration exciter operating property is stable. 2-5 gears which are installed in series force the action lines L of the combination force generated by the synchronous exciters to act on the screen frame in parallel, the stress on the whole screen frame is balanced, and the screen machine operates stably and reliably. The large-scale screening machine is suitable for screening various materials.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a side view of FIG. 1;
in the figure, 1 is a screen frame, 2 is a screen surface, 3 is a vibration exciter, 4 is a motor driving device, 5 is a damping spring, 6 is a motor bracket, 7 is a vibration exciter mounting beam, 8 is a side plate and 9 is a supporting seat; g is the vibration center of gravity of the screen, L is the action line of the resultant force of the series vibration exciters, and beta is the included angle between L and the horizontal plane.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings:
including reel 1, sifter 2, vibration exciter 3, motor drive 4, damping spring 5 and supporting seat 9, reel 1 passes through damping spring 5 to be installed on supporting seat 9, and vibration exciter 3 passes through vibration exciter installation roof beam 7 to be installed on reel 1. The width of the screening machine is 4.9 meters, the length of the screening machine is 12 meters, and three or two vibration exciter mounting beams 7 are independently arranged between two side plates 8 of the screen frame 1. Four gear forced synchronous vibration exciters 3 are transversely and uniformly arranged on each vibration exciter mounting beam 7, and the four gear forced synchronous vibration exciters 3 are connected in series through transmission shafts to form a vibration exciter set. A driving belt pulley is arranged on the transmission shaft at the middle position of each exciter group; the included angle between the action line L of the resultant force generated by the exciter group on each exciter mounting beam 7 and the horizontal plane is beta =45 degrees. The motor driving device 4 connected with the driving belt pulley on the transmission shaft of the exciter set is arranged above the motor support 6, and the supporting legs of the motor support 6 are positioned at two sides of the screen frame 1 and connected with the supporting seat 9 of the screening machine.
One way is that when the number of the vibration exciter mounting beams 7 mounted between the two side plates 8 of the screen frame 1 is three, the line of action L of the force generated by the vibration exciter set on the middle vibration exciter mounting beam 7 is symmetrical to the gravity center G of the screen machine in the longitudinal plane passing through the gravity center G of the screen machine, and the lines of action L of the force generated by the vibration exciter sets on the other two vibration exciter mounting beams 7 are parallel to each other. The three vibration exciters are arranged on the beam 7 and are respectively driven by three motors.
In another mode, when the number of the exciter mounting beams 7 mounted between the two side plates 8 of the screen frame 1 is two, the exciter groups on the exciter mounting beams 7 generate the action lines L of the resultant force, which are symmetrical with respect to the screen machine resonance gravity center G in the longitudinal plane passing through the screen machine resonance gravity center G and are parallel to each other. The two vibration exciters are arranged on the beam 7 and are respectively driven by two motors.
The gear forced synchronization vibration exciter 3 is a two-shaft box type vibration exciter with gear forced synchronization and an external eccentric block. Each exciter bearing model is a self-aligning roller bearing 22322.
Claims (4)
1. The utility model provides a parallel force system and balanced driven large-scale screening machine, includes reel (1), sifter (2), vibration exciter (3), motor drive (4), damping spring (5) and supporting seat (9), and install on supporting seat (9) through damping spring (5) reel (1), and vibration exciter (3) are installed on reel (1) through vibration exciter installation roof beam (7), characterized by: 2-5 vibration exciter mounting beams (7) are independently arranged between two side plates (8) of the screen frame (1); two or four gear forced synchronous vibration exciters are uniformly arranged on each vibration exciter mounting beam (7), and the two or four gear forced synchronous vibration exciters are mounted together in series through a transmission shaft to form a vibration exciter set; a driving belt pulley is arranged on the transmission shaft at the middle position of each exciter group; the included angle between the action line L of the resultant force generated by the exciter group on each exciter mounting beam (7) and the horizontal plane is beta; the motor driving device (4) connected with the driving belt pulley on the transmission shaft of the exciter group is installed above the motor support (6), and the support legs of the motor support (6) are positioned on two sides of the screen frame (1) and connected with the support seat (9) of the screening machine.
2. The large scale screen grader with parallel force system and balanced drive according to claim 1 wherein: when the number of the vibration exciter mounting beams (7) arranged between the two side plates (8) of the screen frame (1) is three or five, the action line L of the combination force generated by the vibration exciter on the middle vibration exciter mounting beam (7) passes through the participating vibration gravity center G of the screen machine, and the action lines L of the combination force generated by the vibration exciter on the rest vibration exciter mounting beams (7) are symmetrical to and parallel to the participating vibration gravity center G of the screen machine in the longitudinal plane passing through the participating vibration gravity center G of the screen machine; when the vibration exciter mounting beams (7) arranged between the two side plates (8) of the screen frame (1) are two or four, the vibration exciter groups on the vibration exciter mounting beams (7) generate the action lines L of the force, and are symmetrical and parallel to the vibration participating gravity centers G of the screen machine in the longitudinal plane passing through the vibration participating gravity centers G of the screen machine.
3. The large scale screen grader with parallel force system and balanced drive according to claim 1 wherein: the included angle beta between the action line L of the resultant force generated by each exciter group and the horizontal plane is = 30-60 degrees.
4. The large scale screen grader with parallel force system and balanced drive according to claim 1 wherein: the gear forced synchronization vibration exciter is a two-shaft box type vibration exciter with gear forced synchronization and an eccentric block externally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221677539.7U CN217595157U (en) | 2022-07-01 | 2022-07-01 | Large sieving machine with parallel force system and balanced drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221677539.7U CN217595157U (en) | 2022-07-01 | 2022-07-01 | Large sieving machine with parallel force system and balanced drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217595157U true CN217595157U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221677539.7U Active CN217595157U (en) | 2022-07-01 | 2022-07-01 | Large sieving machine with parallel force system and balanced drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217595157U (en) |
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2022
- 2022-07-01 CN CN202221677539.7U patent/CN217595157U/en active Active
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