CN214597607U

CN214597607U - Automatic filter cloth tensioning device of belt filter press

Info

Publication number: CN214597607U
Application number: CN202120427071.5U
Authority: CN
Inventors: 吕庆占; 吕金晓; 吕金泽; 张振
Original assignee: Xinxiang Yixin Environmental Engineering Co ltd
Current assignee: Xinxiang Yixin Environmental Engineering Co ltd
Priority date: 2021-02-27
Filing date: 2021-02-27
Publication date: 2021-11-05
Anticipated expiration: 2031-02-27

Abstract

The utility model discloses an automatic tensioning device of belt filter press filter cloth, the power distribution box comprises a box body, the tensioning frame is installed through the bolt in the bottom inner wall center department of box, and the welding has the stable supporting spring on the bottom inner wall of tensioning frame, the top of stable supporting spring is provided with the elevator, and seted up the lift recess on one side outer wall of elevator, install a motor through the backup pad on the tensioning frame is close to one side bottom outer wall of lift recess, and the output of a motor passes through the shaft coupling and installs a threaded rod No. one, a threaded rod passes through the bearing and is swing joint with the tensioning frame. The utility model discloses a motor that sets up, when the operator starts a motor, a motor utilizes the mutual collocation use of a threaded rod, thread plate, push rod, branch, curved bar, spout and curved bar spout to drive the elevator and move, and then makes the device tensioning regulatory function more laborsaving effective, has put the use of having made things convenient for the operator.

Description

Automatic filter cloth tensioning device of belt filter press

Technical Field

The utility model relates to a pressure filter technical field especially relates to an automatic overspeed device tensioner of belt filter press filter cloth.

Background

The dewatering process of the belt press filter can be divided into four important stages of pretreatment, gravity dewatering, wedge-shaped area prepressing dewatering and press dewatering, and environment-friendly filtering products with reasonable price and reliable performance, such as a brand-new type equipment filter program control automatic chamber filter press, a diaphragm filter press, a deep sludge dewatering filter press, an integrated sewage sludge treatment equipment, an online precise filtering system and the like, are technically used.

The tensioning structure of a common belt filter press in the market is generally adjusted manually, and the structure not only wastes time and labor, but also cannot improve the tensioning and adjusting accuracy of the device; in the using process of the traditional device, dust and garbage on the surface of the filter belt cannot be cleaned, so that the tensioning effect of the device is reduced; the conventional device cannot be adjusted when facing filter belts with different thicknesses and lengths, so that the device is not favorable for the tension adjusting function of the device, and therefore, a need exists for designing an automatic filter cloth tensioning device of a belt filter press to solve the above problems.

Disclosure of Invention

The utility model aims at solving and having traditional device among the prior art and can not reducing the labour of device when the tensioning is adjusted, also can not carry out the clearance function to the filter belt surface rubbish dust, traditional device more can not effectual adjustment when the filter belt in the face of different thickness and length, the shortcoming, and a belt filter press filter cloth automatic tensioning device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an automatic tensioning device for filter cloth of a belt filter press comprises a box body, wherein a tensioning frame is installed at the center of the inner wall of the bottom of the box body through a bolt, a stable supporting spring is welded on the inner wall of the bottom of the tensioning frame, a lifting block is arranged at the top end of the stable supporting spring, a lifting groove is formed in the outer wall of one side of the lifting block, a motor is installed on the outer wall of the bottom of one side, close to the lifting groove, of the tensioning frame through a supporting plate, a threaded rod is installed at the output end of the motor through a coupler, the threaded rod is movably connected with the tensioning frame through a bearing, a supporting rod is welded on the inner wall of one side, close to the threaded rod, of the tensioning frame, a sliding groove is formed in the inner wall of the top of the lifting groove, a curved rod which is slidably connected into the sliding groove is movably installed at the other end, far away from the motor, of the supporting rod through a rotating shaft, and a curved rod sliding groove is formed in the outer wall of the middle of the curved rod, threaded connection has the thread plate on the middle part lateral wall of threaded rod, and the welding has the push rod that is sliding connection with the curved bar spout on the thread plate is close to the top one side outer wall of lift recess.

The key concept of the technical scheme is as follows: through the motor that sets up, when the operator started a motor, a motor utilized a threaded rod, thread plate, push rod, branch, curved bar, spout and the mutual collocation of curved bar spout to use and drives the elevator and move, and then made the device tensioning regulatory function more laborsaving effective, put the use of having made things convenient for the operator.

Furthermore, two jacking columns are welded on the outer wall of the top of the lifting block, a conveying wheel is movably mounted on the outer wall of one side, adjacent to the top of each jacking column, of the top of each jacking column through a bearing, and the lifting columns are mounted on the inner wall of the bottom of one side, close to the tensioning frame, of the box body through bolts.

Furthermore, there is the screw rod inside the lift post through bearing movable mounting, and the welding has the worm wheel on the bottom outer wall of screw rod, the inside bottom that the lift post is close to the worm wheel has the worm that meshes mutually with the worm wheel through bearing movable mounting, and wherein one end of worm runs through the outside that sets up at the box.

Further, a lifting sliding groove is formed in the outer wall of one side, adjacent to the top of the lifting column, of the outer wall, the screw rod is connected with a lifting sliding seat in a threaded mode on the outer side wall, close to the lifting sliding groove, of the top, wheels are movably mounted on the outer walls of the two sides of the lifting sliding seat through bearings, wheel grooves are formed in the inner walls, close to the wheels, of the two sides of the lifting sliding groove, and the wheels are connected inside the wheel grooves in a sliding mode.

Further, there is No. two delivery wheels through bearing movable mounting on the adjacent one end outer wall of lift slide, and has No. three delivery wheels through bearing movable mounting on the box keeps away from lift post opposite side inside wall, the box is close to and installs No. two motors through the support frame on the positive one side outer wall of No. three delivery wheels, and the output of No. two motors is the transmission through shaft coupling and No. three delivery wheels and is connected.

Further, a lifting frame is installed on the outer wall of the top of one side, close to the third conveying wheel, of the box body through bolts, pulling grooves are formed in two sides of the bottom of the lifting frame, a lifting seat is connected to the inside of each pulling groove in a sliding mode, springs are welded to the inner wall of the top of the lifting seat and the inner wall of the bottom of the lifting seat, and a scraper is arranged between the springs of the lifting seat.

Further, the welding of the top outer wall center department of lift seat has the guide bar, and the welding has the deflector on the top outer wall of guide bar, the top outer wall center department of guide bar has No. two threaded rods that extend to the crane outside through bearing movable mounting, and No. two threaded rods are threaded connection with the crane, install the flitch through the bolt on the box is close to one side outer wall of crane, and the worm is located the outside one end of box and installs the commentaries on classics hand through the bolt.

The utility model has the advantages that:

1. through the motor that sets up, when the operator started a motor, a motor utilized a threaded rod, thread plate, push rod, branch, curved bar, spout and the mutual collocation of curved bar spout to use and drives the elevator and move, and then made the device tensioning regulatory function more laborsaving effective, put the use of having made things convenient for the operator.

2. Through the worm that sets up, when the operator rotated and changes the hand, it upwards rises to change the hand and use the lift slide of driving through the mutual collocation of worm and worm wheel, and then can effectually adjust when making the device face the filter belt of different thickness and different length, has promoted the device's tensioning effect.

3. Through the scraper blade that sets up, when the operator rotated No. two threaded rods, No. two threaded rods utilized the threaded connection with the crane to drive lift seat, scraper blade, guide bar and deflector rebound, and then made the device can clear up the rubbish on filter belt surface, and the setting of spring can effectually protect the filter belt, has promoted the life of filter belt.

4. Through the No. two motors that set up, when the operator started No. two motors, No. two motors can drive No. three delivery wheels through the shaft coupling and rotate to supplementary filter belt is at the inside removal of device, makes the cracked condition can not appear in the filter belt.

Drawings

Fig. 1 is a schematic structural view of an automatic filter cloth tensioning device of a belt filter press according to the present invention;

FIG. 2 is a schematic plan view of an automatic filter cloth tensioning device of a belt filter press according to the present invention;

FIG. 3 is a schematic view of the internal structure of a tension frame of an automatic tension device for filter cloth of a belt filter press according to the present invention;

FIG. 4 is a schematic view of an internal structure of a lifting chute of an automatic filter cloth tensioning device of a belt filter press according to the present invention;

fig. 5 is the schematic view of the plane structure of the crane of the automatic filter cloth tensioning device of the belt filter press provided by the utility model.

In the figure: the automatic lifting device comprises a box body 1, a tensioning frame 2, a stable supporting spring 3, a lifting block 4, a lifting groove 5, a motor 6, a threaded rod 7, a supporting rod 8, a sliding chute 9, a curved rod 10, a curved rod sliding chute 11, a threaded plate 12, a push rod 13, a jack post 14, a conveying wheel 15, a lifting post 16, a threaded rod 17, a worm gear 18, a worm 19, a lifting sliding chute 20, a lifting sliding seat 21, a wheel groove 22, a wheel 23, a conveying wheel 24 II, a conveying wheel 25 III, a motor 26 II, a lifting frame 27, a pulling groove 28, a lifting seat 29, a scraping plate 30, a spring 31, a guide rod 32, a guide plate 33, a threaded rod 34 II, a rotating handle 35 and a waste material plate 36.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1 to 5 simultaneously, an automatic filter cloth tensioning device of a belt filter press comprises a box body 1, a tensioning frame 2 is installed at the center of the inner bottom wall of the box body 1 through a bolt, a stable supporting spring 3 is welded on the inner bottom wall of the tensioning frame 2, a lifting block 4 is arranged at the top end of the stable supporting spring 3, a lifting groove 5 is formed in the outer wall of one side of the lifting block 4, a motor 6 is installed on the outer wall of the bottom of one side of the tensioning frame 2 close to the lifting groove 5 through a supporting plate, the type of the motor 6 is preferably Y80M1-1, a threaded rod 7 is installed at the output end of the motor 6 through a coupler, the threaded rod 7 is movably connected with the tensioning frame 2 through a bearing, a supporting rod 8 is welded on the inner wall of one side of the tensioning frame 2 close to the threaded rod 7, a sliding groove 9 is formed in the inner top wall of the lifting groove 5, and a sliding connection is formed in the way that the other end of the supporting rod 8, which is far away from the motor 6, is movably installed through a rotating shaft, wherein the sliding connection is arranged inside the sliding groove 9 The curved bar 10, and the curved bar spout 11 has been seted up on the middle part outer wall of curved bar 10, threaded connection has screw plate 12 on the middle part lateral wall of threaded rod 7, and the welding has the push rod 13 that is sliding connection with curved bar spout 11 on the top one side outer wall that screw plate 12 is close to lift recess 5, stable supporting spring 3 can effectually support lifter 4, and the setting of a motor 6 can provide power support for the rising of lifter 4, curved bar 10, the use of mutually arranging of screw plate 12 and push rod 13 makes lifter 4's raising function more perfect.

As can be seen from the above description, the present invention has the following advantages: through a motor 6 that sets up, when the operator starts a motor 6, a motor 6 utilizes a threaded rod 7, thread plate 12, push rod 13, branch 8, curved bar 10, spout 9 and curved bar spout 11 to arrange each other and use and drive elevator 4 and move, and then makes the device tensioning regulatory function more laborsaving effective, puts the use of having made things convenient for the operator.

Further, two jacking columns 14 are welded on the outer wall of the top of the lifting block 4, a conveying wheel 15 is movably mounted on the outer wall of one side, adjacent to the top of the jacking column 14, of the outer wall of the top of the box body, a lifting column 16 is mounted on the inner wall of the bottom of one side, close to the tensioning frame 2, of the box body 1 through bolts, and the arrangement of the lifting column 16 facilitates the installation function of an operator on the conveying wheel 15.

Further, the inside of lift post 16 has screw rod 17 through bearing movable mounting, and the welding has worm wheel 18 on the bottom outer wall of screw rod 17, the inside bottom that lift post 16 is close to worm wheel 18 has worm 19 with worm wheel 18 engaged with through bearing movable mounting, and wherein one end of worm 19 runs through the outside of setting at box 1, the mutual collocation use of worm wheel 18 and worm 19 provides power support for the rotation of screw rod 17, the setting of screw rod 17 provides help for the lift of lift slide 21.

Further, the lift spout 20 has been seted up on the outer wall of the adjacent one side in lift post 16 top, and threaded connection has lift slide 21 on the screw rod 17 is close to the top lateral wall of lift spout 20, there is wheel 23 through bearing movable mounting on the both sides outer wall of lift slide 21, and the wheel groove 22 has been seted up on the both sides inner wall that lift spout 20 is close to wheel 23, wheel 23 sliding connection is in the inside of wheel groove 22, the installation that sets up messenger lift slide 21 of lift spout 20 is more effective, the mutual collocation of wheel groove 22 and wheel 23 can increase the stability of lift slide 21 lift in-process.

Further, there is No. two delivery wheel 24 through bearing movable mounting on the adjacent one end outer wall of lift slide 21, and box 1 keeps away from and has No. three delivery wheel 25 through bearing movable mounting on the lift post 16 opposite side inside wall, install No. two motor 26 through the support frame on the box 1 is close to the positive one side outer wall of No. three delivery wheel 25, No. two motor 26's model is preferably Y200L2-2, and No. two motor 26's output is the transmission through shaft coupling and No. three delivery wheel 25 and is connected, No. two motor 26 sets up to provide power support for No. three rotation of delivery wheel 25, and No. three delivery wheel 25's setting can assist the removal of filter belt in the device is inside.

Further, install crane 27 through the bolt on the box 1 is close to one side top outer wall of No. three delivery wheel 25, and crane 27's bottom both sides have seted up pulling groove 28, the inside sliding connection in pulling groove 28 has lift seat 29, and all weld on the inner wall of lift seat 29 top and bottom has spring 31, lift seat 29 is located and is provided with scraper blade 30 between the spring 31, lift seat 29 set up can provide the help of mounted position for scraper blade 30's installation, and spring 31's setting makes the device can protect the filter belt.

Further, the welding of the top outer wall center department of lift seat 29 has guide bar 32, and the welding has deflector 33 on the top outer wall of guide bar 32, there is No. two threaded rods 34 that extend to the crane 27 outside through bearing movable mounting in the top outer wall center department of deflector 33, and No. two threaded rods 34 are threaded connection with crane 27, install waste material board 36 through the bolt on the box 1 is close to one side outer wall of crane 27, and worm 19 is located the outside one end of box 1 and installs runner 35 through the bolt, the installation that sets up messenger lift seat 29 of guide bar 32 and guide bar 33 is more effective, No. two threaded rods 34 and crane 27's threaded connection make scraper blade 30's raising and lowering functions better.

By adopting the worm 19, when an operator rotates the rotating hand 35, the rotating hand 35 drives the lifting slide seat 21 to lift upwards through the mutual matching use of the worm 19 and the worm wheel 18, so that the device can be effectively adjusted when facing filter belts with different thicknesses and lengths, and the tensioning effect of the device is improved; through the arranged scraper 30, when an operator rotates the second threaded rod 34, the second threaded rod 34 drives the lifting seat 29, the scraper 30, the guide rod 32 and the guide plate 33 to move upwards by utilizing the threaded connection with the lifting frame 27, so that the device can clean garbage on the surface of the filter belt, and the filter belt can be effectively protected by the arrangement of the spring, so that the service life of the filter belt is prolonged; through the No. two motor 26 that sets up, when the operator started No. two motor 26, No. two motor 26 can drive No. three delivery wheel 25 through the shaft coupling and rotate to supplementary filter belt is at the inside removal of device, makes the cracked condition can not appear in the filter belt.

In the following, some preferred embodiments or application examples are listed to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention to the prior art:

example 1

An automatic filter cloth tensioning device of a belt filter press comprises a box body 1, a tensioning frame 2 is installed at the center of the inner wall of the bottom of the box body 1 through a bolt, a stable supporting spring 3 is welded on the inner wall of the bottom of the tensioning frame 2, a lifting block 4 is arranged at the top end of the stable supporting spring 3, a lifting groove 5 is formed in the outer wall of one side of the lifting block 4, a motor 6 is installed on the outer wall of the bottom of one side, close to the lifting groove 5, of the tensioning frame 2 through a supporting plate, the type of the motor 6 is preferably Y80M1-1, a threaded rod 7 is installed at the output end of the motor 6 through a coupler, the threaded rod 7 is movably connected with the tensioning frame 2 through a bearing, a supporting rod 8 is welded on the inner wall of one side, close to the threaded rod 7, of the tensioning frame 2, and a sliding groove 9 is formed in the inner wall of the top of the lifting groove 5, the other end that a motor 6 was kept away from to branch 8 has curved bar 10 inside at spout 9 through pivot movable mounting, and curved bar spout 11 has been seted up on the middle part outer wall of curved bar 10, threaded connection has screw plate 12 on the middle part lateral wall of threaded rod 7, and the welding has the push rod 13 that is sliding connection with curved bar spout 11 on screw plate 12 is close to the top one side outer wall of lift recess 5, stable supporting spring 3 can effectually support lifter 4, and a setting up of motor 6 can provide power support for the rising of lifter 4, curved bar 10, the use of mutually arranging of screw plate 12 and push rod 13 makes lifter 4's raising function more perfect.

The outer wall of the top of the lifting block 4 is welded with two top columns 14, the outer wall of one side, adjacent to the top of each top column 14, of the outer wall is movably provided with a first conveying wheel 15 through a bearing, the inner wall of the bottom of one side, close to the tensioning frame 2, of the box body 1 is provided with a lifting column 16 through a bolt, and the arrangement of the lifting column 16 facilitates the installation function of an operator on the first conveying wheel 15; a screw rod 17 is movably arranged in the lifting column 16 through a bearing, a worm wheel 18 is welded on the outer wall of the bottom end of the screw rod 17, a worm 19 meshed with the worm wheel 18 is movably arranged at the bottom end of the lifting column 16 close to the inner part of the worm wheel 18 through a bearing, one end of the worm 19 penetrates through the outer part of the box body 1, the worm wheel 18 and the worm 19 are matched with each other to provide power support for the rotation of the screw rod 17, and the screw rod 17 is arranged to provide help for the lifting of the lifting slide seat 21; the outer wall of one side adjacent to the top of the lifting column 16 is provided with a lifting sliding chute 20, the outer side wall of the top of the screw 17 close to the lifting sliding chute 20 is in threaded connection with a lifting sliding seat 21, the outer walls of the two sides of the lifting sliding seat 21 are movably provided with wheels 23 through bearings, the inner walls of the two sides of the lifting sliding chute 20 close to the wheels 23 are provided with wheel grooves 22, the wheels 23 are connected inside the wheel grooves 22 in a sliding manner, the lifting sliding seat 21 is more effectively installed due to the arrangement of the lifting sliding chute 20, and the stability of the lifting sliding seat 21 in the lifting process can be improved due to the mutual matching of the wheel grooves 22 and the wheels 23; a second conveying wheel 24 is movably mounted on the outer wall of one end, adjacent to the lifting slide seat 21, of the box body 1 through a bearing, a third conveying wheel 25 is movably mounted on the inner side wall of the other side, away from the lifting column 16, of the box body 1 through a bearing, a second motor 26 is mounted on the outer wall of one side, close to the front side of the third conveying wheel 25, of the box body 1 through a support frame, the type of the second motor 26 is preferably Y200L2-2, the output end of the second motor 26 is in transmission connection with the third conveying wheel 25 through a coupler, the second motor 26 is arranged to provide power support for rotation of the third conveying wheel 25, and the third conveying wheel 25 can assist movement of a filter belt in the device; a lifting frame 27 is installed on the outer wall of the top of one side, close to the third conveying wheel 25, of the box body 1 through bolts, pulling grooves 28 are formed in two sides of the bottom of the lifting frame 27, a lifting seat 29 is connected to the inside of each pulling groove 28 in a sliding mode, springs 31 are welded to the inner walls of the top and the bottom of each lifting seat 29, a scraper 30 is arranged between the springs 31 of each lifting seat 29, the lifting seat 29 can provide mounting position assistance for the installation of the scraper 30, and the springs 31 enable the filter belt to be protected through the device; the welding of the top outer wall center department of lift seat 29 has guide bar 32, and the welding has deflector 33 on the top outer wall of guide bar 32, there is No. two threaded rods 34 that extend to the crane 27 outside through bearing movable mounting in the top outer wall center department of deflector 33, and No. two threaded rods 34 are threaded connection with crane 27, install waste material board 36 through the bolt on the box 1 is close to one side outer wall of crane 27, and worm 19 is located the outside one end of box 1 and installs runner 35 through the bolt, the setting up of guide bar 32 and guide bar 33 makes lift seat 29's installation more effective, No. two threaded rods 34 and crane 27's threaded connection make scraper blade 30's raising and lowering functions better.

The working principle is as follows: when an operator uses the device, the device is firstly placed at a designated position, then the filter cloth is arranged in the device, at the moment, the second motor 26 is started, the second motor 26 drives the third conveying wheel 25 to rotate under the action of the coupler, then the second threaded rod 34 is rotated, the second threaded rod 34 drives the guide plate 33 to ascend upwards through the threaded connection with the lifting frame 27, the guide plate 33 drives the scraper 30 to ascend and descend under the action of the lifting seat 29, the scraper 30 can move up and down under the action of the spring 31 when the scraper 30 meets a hard object, when the operator wants to tension the filter belt, the first motor 6 is started, the first motor 6 drives the push rod 13 to move through the threaded plate 12, the push rod 13 drives the curved rod 10 to move in the sliding groove 9 through the sliding connection with the curved rod sliding groove 11, when an operator rotates the rotating hand 35, the rotating hand 35 drives the screw rod 17 to rotate by utilizing the mutual meshing of the worm and the worm wheel 18, the screw rod 17 drives the lifting slide seat 21 to lift upwards by utilizing the threaded connection with the lifting slide seat 21, and the wheel 23 can move in the wheel groove 22 during the lifting process of the lifting slide seat 21, so that the lifting function of the lifting slide seat 21 is perfected.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The automatic filter cloth tensioning device of the belt filter press comprises a box body (1) and is characterized in that a tensioning frame (2) is installed at the center of the inner wall of the bottom of the box body (1) through a bolt, a stable supporting spring (3) is welded on the inner wall of the bottom of the tensioning frame (2), a lifting block (4) is arranged at the top end of the stable supporting spring (3), a lifting groove (5) is formed in the outer wall of one side of the lifting block (4), a motor (6) is installed on the outer wall of the bottom of one side, close to the lifting groove (5), of the tensioning frame (2) through a supporting plate, a threaded rod (7) is installed at the output end of the motor (6) through a coupler, the threaded rod (7) is movably connected with the tensioning frame (2) through a bearing, a supporting rod (8) is welded on the inner wall of one side, close to the threaded rod (7), of the tensioning frame (2), and seted up spout (9) on the top inner wall of lift recess (5), the other end that a motor (6) was kept away from in branch (8) has crank (10) of sliding connection inside spout (9) through pivot movable mounting, and has seted up crank spout (11) on the middle part outer wall of crank (10), threaded connection has thread plate (12) on the middle part lateral wall of a threaded rod (7), and on thread plate (12) be close to the top one side outer wall of lift recess (5) the welding have push rod (13) that are sliding connection with crank spout (11).

2. The automatic filter cloth tensioning device of the belt filter press as claimed in claim 1, wherein two top columns (14) are welded on the outer wall of the top of the lifting block (4), a first conveying wheel (15) is movably mounted on the outer wall of one side adjacent to the top of each top column (14) through a bearing, and a lifting column (16) is mounted on the inner wall of the bottom of one side of the box body (1) close to the tensioning frame (2) through a bolt.

3. The automatic filter cloth tensioning device of the belt filter press as claimed in claim 2, wherein the inside of the lifting column (16) is movably provided with a screw rod (17) through a bearing, the outer wall of the bottom end of the screw rod (17) is welded with a worm wheel (18), the bottom end of the inside of the lifting column (16) close to the worm wheel (18) is movably provided with a worm (19) meshed with the worm wheel (18) through a bearing, and one end of the worm (19) penetrates through the outside of the box body (1).

4. The automatic filter cloth tensioning device of the belt filter press as claimed in claim 2, wherein the outer wall of the side adjacent to the top of the lifting column (16) is provided with a lifting chute (20), the outer side wall of the top of the screw (17) close to the lifting chute (20) is in threaded connection with a lifting slide (21), the outer walls of the two sides of the lifting slide (21) are movably provided with wheels (23) through bearings, the inner walls of the two sides of the lifting chute (20) close to the wheels (23) are provided with wheel grooves (22), and the wheels (23) are slidably connected inside the wheel grooves (22).

5. The automatic filter cloth tensioning device of the belt filter press as claimed in claim 4, wherein the outer wall of the adjacent end of the lifting slide (21) is movably provided with a second conveying wheel (24) through a bearing, the inner side wall of the other side of the box body (1) far away from the lifting column (16) is movably provided with a third conveying wheel (25) through a bearing, the outer wall of the front side of the box body (1) near the third conveying wheel (25) is provided with a second motor (26) through a supporting frame, and the output end of the second motor (26) is in transmission connection with the third conveying wheel (25) through a coupling.

6. The automatic filter cloth tensioning device of the belt filter press as claimed in claim 1, wherein a lifting frame (27) is installed on the outer wall of the top of one side of the box body (1) close to the third conveying wheel (25) through bolts, pulling grooves (28) are formed in two sides of the bottom of the lifting frame (27), a lifting seat (29) is connected to the inside of each pulling groove (28) in a sliding mode, springs (31) are welded to the inner walls of the top and the bottom of each lifting seat (29), and a scraper (30) is arranged between the springs (31) of each lifting seat (29).

7. The automatic filter cloth tensioning device of the belt filter press as claimed in claim 6, wherein a guide rod (32) is welded at the center of the outer wall of the top of the lifting seat (29), a guide plate (33) is welded on the outer wall of the top end of the guide rod (32), a second threaded rod (34) extending to the outside of the lifting frame (27) is movably installed at the center of the outer wall of the top of the guide plate (33) through a bearing, the second threaded rod (34) is in threaded connection with the lifting frame (27), a waste plate (36) is installed on the outer wall of one side, close to the lifting frame (27), of the box body (1) through a bolt, and a rotating handle (35) is installed at one end, located at the outside of the box body (1), of the worm (19) through a bolt.