CN210499745U

CN210499745U - Butterfly valve sealing washer grinder

Info

Publication number: CN210499745U
Application number: CN201921527711.9U
Authority: CN
Inventors: 张盛洪; 杨忠义
Original assignee: Shanghai Koko Valve Group Co ltd
Current assignee: Shanghai Koko Valve Group Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-05-12
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a butterfly valve sealing washer grinder, including grinding a section of thick bamboo, grinding a section of thick bamboo and being inside hollow radius bench type, and the bottom center department of grinding a section of thick bamboo pegs graft and have the main shaft that runs through from top to bottom, the drive head is connected to the upper end of main shaft, and cup joints the carousel bottom plate that the middle part has the movable orifice on the main shaft, the carousel bottom plate is to a lopsidedness, and the carousel bottom plate passes through the reinforcing plate and be connected with the main shaft, the circumference of carousel bottom plate is provided with annular mounting groove, and installs the closing plate that remains to grind in the mounting groove, and the main shaft can rotate round the spring, and the lower extreme of spring is installed in the inner chamber bottom of grinding a section of thick bamboo. The adjustable speed motor drives the cam to rotate, so that the main shaft is driven to move up and down, the main shaft and the turntable base plate are supported by the spring, the sealing plate rotates in the circumferential direction and moves up and down, the grinding effect is guaranteed, the circumferential grinding of the sealing plate is more uniform, and the sealing effect is better.

Description

Butterfly valve sealing washer grinder

Technical Field

The utility model relates to a butterfly valve stereoplasm sealing washer grinds the field, specifically is a butterfly valve sealing washer grinder.

Background

The butterfly valve sealing is currently and commonly adopted in the industry in a multilayer sealing mode on a sealing plate, the multilayer sealing is that a first layer uses a 304 stainless steel plate with the thickness of 2mm, a second layer uses a rubber asbestos plate with the thickness of 2mm, a third layer uses a 304 stainless steel plate with the thickness of 2mm, a fourth layer uses a rubber asbestos plate with the thickness of 2mm, and the like share 9 layers, a layer of rubber asbestos plate is placed between every two stainless steel plates in a specific installation sequence, then a 9-layer plate is clamped on the butterfly plate, the butterfly plate is fixed on a machine tool, and the butterfly plate is processed according to a designed angle. The valve seat and the valve seat form a sealing pair, the sealing pair is tightly matched with the valve seat to play a sealing role, the defect that the defect of processing precision can be overcome due to the fact that 304 stainless steel materials have certain toughness and the rubber asbestos plate is matched, so that the valve is convenient to produce, but the sealing pair has the defect that the sealing function can be achieved at the beginning, leakage can be generated after a long time, the sealing effect cannot be achieved, and the problem that the valve is always troublesome in the valve boundary is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a butterfly valve sealing washer grinder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a butterfly valve seal ring grinding device comprises a grinding cylinder, wherein the grinding cylinder is of an inverted circular truncated cone shape with a hollow interior, a main shaft which penetrates through the grinding cylinder up and down is inserted in the center of the bottom of the grinding cylinder, the upper end of the main shaft is connected with a driving head, a turntable bottom plate with a movable hole in the middle is sleeved on the main shaft, the turntable bottom plate inclines to one side and is connected with the main shaft through a reinforcing plate, an annular mounting groove is formed in the circumferential direction of the turntable bottom plate, a seal plate to be ground is mounted in the mounting groove, and a fixing mechanism for compressing the seal plate is arranged on the turntable bottom plate;

the spindle is sleeved with a spring capable of supporting the spindle and the turntable bottom plate, the upper end of the spring is mounted on the spindle, the spindle can rotate around the spring, the lower end of the spring is mounted at the bottom of an inner cavity of the grinding cylinder, and the lower end of the spindle is connected with a cam mechanism capable of enabling the spindle to move up and down.

Preferably, the fixing mechanism comprises a pressure plate which is arranged on the upper side of the sealing plate and extends inwards to the rotary table bottom plate, and the pressure plate is connected with the rotary table bottom plate through a stud bolt.

Preferably, the main shaft is connected with a main shaft sleeve through a key pin, the main shaft is connected with a nut tightly abutting against the lower end of the main shaft sleeve, a main shaft nut tightly abutting against the upper end of the main shaft sleeve is connected to the main shaft in a threaded mode, and the inner end of the reinforcing plate is fixedly connected with the sleeve.

Preferably, a round supporting plate is fixed at the upper end of the spring, the upper end of the round supporting plate is rotatably connected with the spring nut through a bearing I, and the spring nut is fixedly connected with the main shaft.

Preferably, the spindle is sleeved with a shaft sleeve, the shaft sleeve is clamped on the grinding cylinder in an interference fit manner, and the lower end of the spring is rotatably connected with the upper end of the shaft sleeve through a second bearing.

Preferably, the cam mechanism comprises a support upper plate arranged at the lower end of the grinding cylinder, the lower end of the support upper plate is connected with a support bottom plate through a cylinder support, a motor support lower plate is arranged on the support bottom plate, a motor support upper plate for installing a power supply motor is arranged on the motor support lower plate, a cam abutting against the lower end of the main shaft is connected to a motor shaft of the motor, and an adjusting mechanism capable of enabling the motor to drive the cam to move up and down to adapt to different sealing plate diameters is arranged between the motor support lower plate and the motor support upper plate.

Preferably, the motor is a speed-adjustable motor capable of adjusting speed.

Preferably, the adjusting mechanism comprises an upward supporting plate hinged to the rear end of the lower plate of the motor support, the upper end of the supporting plate is fixedly connected with the rear end of the upper plate of the motor support, and a thread adjusting mechanism which is driven by threads to overturn the upper plate of the motor support in a front-back manner to change the height is arranged at the front end of the upper plate of the motor support.

Preferably, the thread adjusting mechanism comprises a ball head screw rod in threaded connection with the upper plate of the motor support in a perpendicular manner, a hand wheel is fixed at the upper end of the ball head screw rod, and a ball seat for supporting the ball head part at the lower end of the ball head screw rod is arranged on the lower plate of the motor support.

Compared with the prior art, the beneficial effects of the utility model are that:

1. firstly, a hard sealing plate is arranged in a mounting groove through a pressing plate, a driving head drives a main shaft to rotate so as to drive a turntable bottom plate and the sealing plate to rotate, the sealing plate is in contact with an inverted circular truncated cone-shaped grinding cylinder for grinding, and meanwhile, grinding paste is continuously added to achieve circumferential grinding;

2. the speed regulating motor drives the cam to rotate, so that the main shaft is driven to move up and down, the spring supports the main shaft and the turntable base plate, the sealing plate rotates in the circumferential direction, and moves up and down at the same time, so that the grinding effect is ensured, the circumferential grinding of the sealing plate is more uniform, the precision is higher, the sealing effect is better, and the sealing plate can be better matched with a valve seat;

3. the hand wheel is rotated, so that the upper plate of the motor support can be turned up and down, the upper position and the lower position of the speed regulating motor are changed, the upper position and the lower position of the main shaft are changed, the sealing plates with different diameters are adapted, and the sealing plate is flexible and practical.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a schematic view of the connection between the ball head screw and the ball seat of the present invention;

FIG. 4 is a schematic view of the connection between the sealing plate and the bottom plate of the turntable according to the present invention;

FIG. 5 is a schematic view of the cam structure of the knot of the present invention;

fig. 6 is a diagram showing the movement cycle of the cam according to the present invention.

In the figure: 11 main shaft sleeve, 12 reinforcing plate, 13 stud bolt, 15 pressing plate, 16 sealing plate, 17 turntable bottom plate, 21 cylinder bracket, 22 bracket bottom plate, 23 grinding cylinder, 25 bracket upper plate, 31 main shaft combining cap, 32 key pin, 33 spring combining cap, 34a bearing I, 34b bearing II, 35 circular supporting plate, 36 spring, 37 shaft sleeve, 38 main shaft, 41 cam, 45 motor bracket lower plate, 46 motor bracket upper plate, 51 speed regulating motor, 52 hand wheel, 54 ball screw and 57 ball seat.

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.

Referring to fig. 1 to 6, the present invention provides a technical solution of a butterfly valve sealing ring grinding device: a butterfly valve seal ring grinding device comprises a grinding cylinder 23, wherein the grinding surface of the grinding cylinder 23 is arranged on the inner side, the grinding cylinder 23 is in an inverted circular truncated cone shape with a hollow inner part, a spindle 38 penetrating up and down is inserted in the center of the bottom of the grinding cylinder 23, the upper end of the spindle 38 is connected with a driving head, a turntable bottom plate 17 with a movable hole in the middle is sleeved on the spindle 38, the turntable bottom plate 17 inclines towards one side, the turntable bottom plate 17 is connected with the spindle 38 through a reinforcing plate 12, the spindle 38 is connected with a spindle sleeve 11 through a key pin 32, the spindle 38 is connected with a nut abutting against the lower end of the spindle sleeve 11, a spindle nut abutting against the upper end of the spindle sleeve 11 is connected onto the spindle 38 in a threaded manner, the inner end of the reinforcing plate 12 is fixedly connected with the spindle sleeve 11, the mounting is convenient, the key pin enables the sleeve 11 to slide up and down without sliding in the circumferential direction, an annular mounting groove, a fixing mechanism for pressing the sealing plate 16 is arranged on the turntable base plate 17, the fixing mechanism comprises a pressing plate 15 which is arranged on the upper side of the sealing plate 16 and extends inwards to the turntable base plate 17, the pressing plate 15 is connected with the turntable base plate 17 through a stud bolt 13, the sealing plate 16 is pressed through a stud bolt 23, and the sealing plate 16 extends outwards so as to rub against the inner wall of the grinding cylinder 23, so that grinding is carried out, and meanwhile, grinding paste is added;

the main shaft 38 is sleeved with a spring 36 capable of supporting the main shaft 38 and the turntable bottom plate 17, the upper end of the spring 36 is mounted on the main shaft 38, the main shaft 38 can rotate around the spring 36, the driving head drives the main shaft 38 and the sealing plate 16 to rotate, the spring 36 plays a supporting role and does not rotate, the upper end of the spring 36 is fixed with a round supporting plate 35, the upper end of the round supporting plate 35 is rotatably connected with a spring combining cap 33 through a bearing I34 a, the spring combining cap 33 is fixedly connected with the main shaft 38, friction is reduced through the bearing I34 a, the main shaft 38 is sleeved with a shaft sleeve 37, the shaft sleeve 37 is in interference clamping connection with the grinding cylinder 23, the lower end of the spring 36 is rotatably connected with the upper end of the shaft sleeve 37 through a bearing II 34b, the shaft sleeve 37 ensures the stability of the main shaft 38 and is not prone to skew and offset, the lower end of the spring 36 is mounted at the bottom of, the cam mechanism comprises a bracket upper plate 25 arranged at the lower end of the grinding cylinder 23, and the lower end of the bracket upper plate 25 is connected with a bracket bottom plate 22 through a cylinder bracket 21.

A motor support lower plate 46 is arranged on the support bottom plate 22, a motor support upper plate 45 for installing a power supply is arranged on the motor support lower plate 46, a cam 41 which is abutted to the lower end of the main shaft 38 is connected to a motor shaft of the motor, the motor is an adjustable speed motor 51 capable of adjusting speed and can adjust speed, an adjusting mechanism which can enable the motor to drive the cam 41 to move up and down to adapt to the diameters of different sealing plates 16 is arranged between the motor support lower plate 46 and the motor support upper plate 45, the upper and lower positions of the cam 41 are changed through the adjusting mechanism, the sealing plates 16 are jacked up, the sealing plates 16 can move up and down to adapt to different diameters, the phenomenon that the diameters are overlarge and are clamped on the grinding cylinder 23 due to being leaned down is avoided, the adjusting mechanism comprises an upward supporting plate which is hinged and connected with the rear end of the motor support lower plate 46, the upper end of the supporting plate is fixedly connected with the rear end of The section mechanism drives the motor support upper plate 45 to turn over in a threaded mode, so that the cam 41 is driven to move up and down, the main shaft 38 moves up and down, the thread adjusting mechanism comprises a ball head screw 54 connected with the motor support upper plate 45 in a vertical threaded mode, a hand wheel 52 is fixed at the upper end of the ball head screw 54, a ball seat 57 for supporting the ball head part at the lower end of the ball head screw 54 is arranged on the motor support lower plate 46, the ball head rotates around the ball seat 57, a ball seat pressing plate is arranged on the ball seat 57, and the ball seat 57 is.

The upward force of spring 36 is designed as follows: the gravity of (main shaft 38+ main shaft combined cap 31+ main shaft sleeve 11+ reinforcing plate 12+ turntable bottom plate 17+ stud bolt 13+ nut + pressing plate 15+ sealing plate 16+ key pin 32+ spring combined cap 33+ spring 36+ bearing one 34a + round supporting plate 35) minus the elastic force of spring 36 is 40-50N, that is, the upward jacking force of spring 36 is 40-50N smaller than the gravity of the sum of the integral connecting pieces of turntable bottom plate 17, and the action is as follows: the downward force of the weight of the cam 41 against the object on the cam is prevented from being too large, the sealing plate 16 is clamped in the grinding cylinder 23, the galling and peeling phenomena are caused, the track of the cam 41 is designed according to 360 degrees, when the cam is rapidly descended for 1 second at 0-36 degrees by 7mm, is descended for 3 seconds at 37-144 degrees by 3mm, is ascended for 4 seconds at 145-288 degrees, the position is kept unchanged, and when the cam is descended for 2 seconds at 289-360 degrees by 10mm, the whole process is a grinding period. In other words, it is exactly that a grinding cycle time is 10 seconds, the first second, sealing plate 17 descends 7mm fast, 3 seconds fall 3mm slowly subsequently, sealing plate 16 begins to contact lower grinding barrel 23, 4 seconds stay and continue grinding at this position, 2 seconds again, sealing plate 16 rises 10mm fast, so that sealing plate 16 is continuous to circulate and grinds from top to bottom, the effect is that the continuous abrasive that adds and alternate the position in the grinding process, prevent that the sealing plate from being blocked, make sealing plate 16 grind evenly, the interior circle grinding linear velocity of sealing plate 16 control within 250 mm/second, the benefit is that the fast decline during idle running, contact slowly approach, the grinding time is not too long, the continuous upper and lower is convenient for adding the abrasive, grind evenly.

The working principle is as follows: firstly, the hard sealing plate 16 is installed in the installation groove through the pressing plate 15, the driving head drives the main shaft 38 to rotate, thereby driving the turntable bottom plate 17 and the sealing plate 16 to rotate, the sealing plate 16 contacts the grinding cylinder 23 in the shape of an inverted circular truncated cone, grinding is carried out, meanwhile, grinding paste is continuously added, circumferential grinding is carried out, the adjustable speed motor 51 drives the cam 41 to rotate, thereby driving the main shaft 38 to move up and down, the spring 36 supports the main shaft 38 and the turntable bottom plate 17, thereby the sealing plate 16 circumferentially rotates, and the sealing plate 16 circumferentially rotates while moving up and down, thereby ensuring the grinding effect, ensuring the sealing plate 16 circumferentially grinds more uniformly, the sealing effect is better, the hand wheel 52 is rotated, the upper plate 46 of the motor support can be turned up and down, thereby the upper and lower positions of the adjustable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a butterfly valve sealing washer grinder, includes grinding cylinder (23), its characterized in that: the grinding cylinder (23) is of an inverted circular truncated cone shape with a hollow interior, a spindle (38) penetrating through the grinding cylinder (23) from top to bottom is inserted in the center of the bottom of the grinding cylinder, the upper end of the spindle (38) is connected with a driving head, a turntable bottom plate (17) with a movable hole in the middle is sleeved on the spindle (38), the turntable bottom plate (17) inclines to one side, the turntable bottom plate (17) is connected with the spindle (38) through a reinforcing plate (12), an annular mounting groove is formed in the circumferential direction of the turntable bottom plate (17), a sealing plate (16) to be ground is mounted in the mounting groove, and a fixing mechanism for pressing the sealing plate (16) is arranged on the turntable bottom plate (17);

the spindle (38) is sleeved with a spring (36) capable of supporting the spindle (38) and the turntable bottom plate (17), the upper end of the spring (36) is mounted on the spindle (38), the spindle (38) can rotate around the spring (36), the lower end of the spring (36) is mounted at the bottom of an inner cavity of the grinding cylinder (23), and the lower end of the spindle (38) is connected with a cam mechanism capable of enabling the spindle (38) to move up and down.

2. The butterfly valve sealing ring grinding device of claim 1, wherein: the fixing mechanism comprises a pressure plate (15) which is arranged on the upper side of the sealing plate (16) and extends inwards to the rotary table bottom plate (17), and the pressure plate (15) is connected with the rotary table bottom plate (17) through a stud bolt (13).

3. The butterfly valve sealing ring grinding device of claim 1, wherein: the main shaft (38) is connected with a main shaft sleeve (11) through a key pin (32), a nut tightly abutting against the lower end of the main shaft sleeve (11) is connected onto the main shaft (38), a main shaft nut (31) tightly abutting against the upper end of the main shaft sleeve (11) is connected onto the main shaft (38) in a threaded mode, and the inner end of the reinforcing plate (12) is fixedly connected with the main shaft sleeve (11).

4. The butterfly valve sealing ring grinding device of claim 1, wherein: a round supporting plate (35) is fixed at the upper end of the spring (36), the upper end of the round supporting plate (35) is rotatably connected with a spring combining cap (33) through a bearing I (34a), and the spring combining cap (33) is fixedly connected with a main shaft (38).

5. The butterfly valve sealing ring grinding device of claim 3, wherein: the spindle (38) is sleeved with a shaft sleeve (37), the shaft sleeve (37) is clamped on the grinding cylinder (23) in an interference manner, and the lower end of the spring (36) is rotatably connected with the upper end of the shaft sleeve (37) through a second bearing (34 b).

6. The butterfly valve sealing ring grinding device of claim 1, wherein: the cam mechanism comprises a support upper plate (25) arranged at the lower end of a grinding cylinder (23), the lower end of the support upper plate (25) is connected with a support bottom plate (22) through a cylinder support (21), a motor support lower plate (46) is arranged on the support bottom plate (22), a motor support upper plate (45) for installing a power supply motor is arranged on the motor support lower plate (46), a cam (41) which abuts against the lower end of a main shaft (38) is connected onto a motor shaft of the motor, and an adjusting mechanism which can enable the motor to drive the cam (41) to move up and down to adapt to diameters of different sealing plates (16) is arranged between the motor support lower plate (46) and the motor support upper plate (45).

7. The butterfly valve sealing ring grinding device of claim 6, wherein: the motor is a speed-regulating motor (51) capable of regulating speed.

8. The butterfly valve sealing ring grinding device of claim 7, wherein: the adjusting mechanism comprises an upward supporting plate hinged with the rear end of the lower motor support plate (46), the upper end of the supporting plate is fixedly connected with the rear end of the upper motor support plate (45), and a thread adjusting mechanism which is driven by a thread mode to overturn the upper motor support plate (45) back and forth to change the height is arranged at the front end of the upper motor support plate (45).

9. The butterfly valve sealing ring grinding device of claim 8, wherein: the thread adjusting mechanism comprises a ball head screw rod (54) which is in vertical thread connection with the upper plate (45) of the motor support, a hand wheel (52) is fixed at the upper end of the ball head screw rod (54), and a ball seat (57) which supports the ball head part at the lower end of the ball head screw rod (54) is arranged on the lower plate (46) of the motor support.