Gear pump sealing surface grinding device

Abstract

The utility model relates to the technical field of grinding devices, in particular to a grinding device for a sealing surface of a gear pump, which adopts a turntable and a grinding disc which are eccentrically arranged, so that the complexity of a grinding path of the sealing surface is improved, and the grinding effect of the sealing surface is improved. Comprising a rack, a turntable, a shaft lever and a millstone, the eccentric shaft is installed at the eccentric position of the lower end face of the rotary disc and rotationally installed on the rack, the clamping mechanism is installed on the upper end face of the rotary disc, the shaft rod is rotationally installed on the rack in a liftable mode, the grinding disc is concentrically installed at the lower end of the shaft rod, and the grinding piece is installed on the lower end face of the grinding disc. The grinding disc is located above the rotating disc, the driving mechanism is installed on the rack and drives the eccentric shaft to rotate, the driving mechanism drives the shaft rod to rotate, and the rotating direction of the shaft rod is opposite to that of the eccentric shaft.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grinding device, in particular to a gear pump sealing surface grinding device. BACKGROUND

[0002] Gear pump needs to grind sealing surface to ensure sealing, and the prior art discloses a sealing surface grinding device of sealing component, which comprises a frame body, a moving mechanism installed on the frame body, a grinding drive mechanism installed on the moving mechanism, a grinding mechanism installed on the grinding drive mechanism, and two clamping mechanisms oppositely installed on the frame body and located below the grinding mechanism.

[0003] However, the above grinding device has the following problems: the position of the grinding disc and the sealing surface is relatively fixed, the grinding track of the grinding disc on the sealing surface is fixed, and when there is an abnormal point on the surface of the grinding disc, a monotonous concentric circle structure mark is generated on the grinding surface, which is not conducive to improving the grinding effect of the sealing surface. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a gear pump sealing surface grinding device adopting eccentric arrangement of the rotating disc and the grinding disc, improves the complexity of the grinding path of the sealing surface, and improves the grinding effect of the sealing surface.

[0005] The utility model discloses a gear pump sealing surface grinding device, including frame, carousel, shaft and millstone, still include eccentric shaft, abrasive disc, clamping mechanism and drive mechanism, the eccentric position of the lower end surface carousel installs eccentric shaft, and eccentric shaft rotatoryly installs on the frame, the upper end surface of carousel installs clamping mechanism, and the rotatoryly installable lifting of shaft is in the frame, and the lower extreme of shaft concentric installation is in the shaft, and the lower end surface of abrasive disc installs abrasive disc, and abrasive disc is located the top of carousel, and drive mechanism installs frame, and drive mechanism drives eccentric shaft rotation, and drive mechanism drives the rotation of shaft, and the rotation direction of shaft and eccentric shaft is opposite, when working, the gear pump casing or other sealing components are clamped to the clamping mechanism on the carousel, and drive mechanism drives eccentric shaft rotation, and eccentric shaft drives the eccentric rotation of carousel, and carousel drives the eccentric rotation of the component on it around eccentric shaft, and drive mechanism drives the rotation of shaft, and shaft drives the reverse rotation of millstone and abrasive disc relative component, and the lowering of shaft makes abrasive disc grind the sealing surface of component, because the eccentric arrangement of component and abrasive disc, therefore the grinding path of abrasive disc to the sealing surface of component is complex and not fixed, therefore the grinding track of the sealing surface is not fixed, avoid the abnormal point of abrasive disc to cause the trace of the monotonous concentric circle structure on the grinding surface, and it is favorable to improve the grinding effect of sealing surface.

[0006] Preferably, the clamping mechanism comprises two sliding blocks, two clamping blocks, two racks, a gear one, a gear two and a long shaft, the upper end surface of the carousel is provided with a sliding groove passing through the center of the circle, the two sliding blocks are movably arranged on the two sides of the sliding groove of the carousel, the clamping blocks are arranged on the two sliding blocks, the two clamping blocks are symmetrically arranged, the two racks are connected with the two sliding blocks respectively, the two racks are arranged in parallel, a gap is arranged between the two racks, the gear one is rotatably arranged on the carousel, the gear one is engaged with one of the racks, the gear two is rotatably arranged on the carousel, the gear two is engaged with the other rack, the gear two is engaged with the gear one, and the long shaft is rotatably arranged on the carousel, and the inner end of the long shaft is concentrically connected with the gear two.

[0007] Preferably, the two clamping blocks are W-shaped; the W-shaped clamping blocks enable the two clamping blocks to clamp the sealing components through the two ends when the two clamping blocks are close to each other, and enable the two clamping blocks to support the sealing components through the middle part when the two clamping blocks are away from each other, so that the clamping and expansion of the components are realized, two kinds of clamping actions are realized, the components of different sizes are applicable, and the universality is good.

[0008] Preferably, the long shaft is provided with a worm gear at the outer end, a worm is rotatably arranged on the rotating disc, the worm is engaged with the worm gear, and a hand wheel is arranged at the upper end of the worm; the worm is rotated by the hand wheel, the worm drives the long shaft to rotate by engaging with the worm gear, the long shaft and the gear are driven, the worm gear and the worm structure realize self-locking function, and the parts are prevented from loosening.

[0009] Preferably, the pressure sensor is arranged at one end of the shaft, and the other end of the pressure sensor is connected with the outer edge of the grinding disc; the pressure sensor detects the pressure values of the sealing surface of the grinding part at different positions when the grinding disc rotates, and the pressure values are kept stable by adjusting the lifting of the shaft, so that the sealing surface is stably ground, and when the pressure values detected by the pressure sensor at different angles are kept stable, the sealing surface is ground to the same plane, that is, the high points of the sealing surface are eliminated, and the sealing property is improved by continuous grinding.

[0010] Preferably, the driving mechanism comprises a motor, a driving shaft, a driving gear one, two-stage transmission wheels, a transmission belt one, a movable driving wheel, a fixed driving wheel, a cross beam and a transmission belt two; the motor is arranged on the frame, the driving shaft is vertically rotatably arranged on the frame, the driving gear one is concentrically arranged on the driving shaft, the two-stage transmission wheels are rotatably arranged on the frame, the two-stage transmission wheels are provided with a gear and a driving wheel in series, the driving gear one is engaged with the gear of the two-stage transmission wheels, a driven wheel is arranged on the eccentric shaft, the transmission belt one is sleeved on the driving wheel of the two-stage transmission wheels and the driven wheel of the eccentric shaft, the movable driving wheel is in lifting transmission connection with the driving gear one through a spline pair, the fixed driving wheel is concentrically arranged on the shaft, one end of the cross beam is rotatably connected with the fixed driving wheel, the other end of the cross beam is rotatably connected with the movable driving wheel, and the transmission belt two is sleeved on the movable driving wheel and the fixed driving wheel; the motor drives the driving shaft to rotate, the driving shaft drives the driving gear one and the movable driving wheel to rotate, the driving gear one drives the two-stage transmission wheels to rotate in opposite directions, the two-stage transmission wheels drive the eccentric shaft and the rotating disc to rotate through the transmission belt one, the driving gear one drives the movable driving wheel to rotate through the spline pair, the movable driving wheel drives the fixed driving wheel to rotate through the transmission belt two, and the fixed driving wheel drives the shaft and the grinding disc to rotate; when the shaft is lifted, the movable driving wheel is synchronously lifted through the cross beam, so that the grinding disc and the rotating disc are relatively rotated, and the driving effect is good.

[0011] Compared with the prior art, the utility model has the advantages that when working, gear pump casing or other sealing parts are clamped to the clamping mechanism on the rotating disc, the driving mechanism drives the eccentric shaft to rotate, the eccentric shaft drives the rotating disc to eccentric rotate, the rotating disc drives the parts on it to eccentric rotate around the eccentric shaft, the driving mechanism drives the shaft rod to rotate, the shaft rod drives the grinding disc and the grinding piece to rotate reversely to the parts, the shaft rod drops to make the grinding piece grind the sealing surface of the parts, because the parts and the grinding piece are eccentric arranged, therefore the grinding path of the grinding piece to the sealing surface of the parts is complex and not fixed, therefore the grinding track to the sealing surface is not fixed, the abnormal point of the grinding piece is avoided to cause the trace of monotonous concentric circle structure on the grinding surface, and the grinding effect of the sealing surface is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the utility model, and

[0013] Figure 2 It is the front view structural schematic diagram of the utility model, and

[0014] Figure 3 It is the axonometric structural schematic diagram of the utility model, and

[0015] Figure 4 It is the structural schematic diagram of the structure such as shaft rod, grinding disc and driving mechanism, and

[0016] Figure 5 It is the structural schematic diagram of the structure such as rotating disc and clamping mechanism, and

[0017] Figure 6 It is the structural schematic diagram of the structure such as clamping mechanism.

[0018] Mark in drawing: 1, frame, 2, rotating disc, 3, shaft rod, 4, grinding disc, 5, eccentric shaft, 6, grinding piece, 7, sliding block, 8, clamping block, 9, rack, 10, gear one, 11, gear two, 12, long shaft, 13, worm wheel, 14, worm, 15, hand wheel, 16, pressure sensor, 17, motor, 18, driving shaft, 19, driving gear one, 20, two-stage transmission wheel, 21, transmission belt one, 22, movable driving wheel, 23, fixed driving wheel, 24, crossbeam, 25, transmission belt two. DETAILED DESCRIPTION

[0019] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Embodiment 1

[0021] AsFigures 1 to 4 As shown in the figure, a gear pump sealing surface grinding device comprises a frame 1, a rotating disc 2, a shaft 3 and a grinding disc 4; further comprising an eccentric shaft 5, a grinding sheet 6, a clamping mechanism and a driving mechanism, the eccentric shaft 5 is installed at the eccentric position of the lower end surface of the rotating disc 2, the eccentric shaft 5 is rotatably installed on the frame 1, the clamping mechanism is installed on the upper end surface of the rotating disc 2, the shaft 3 is rotatably installed on the frame 1 and can be lifted and lowered, the grinding disc 4 is concentrically installed at the lower end of the shaft 3, the grinding sheet 6 is installed on the lower end surface of the grinding disc 4, the grinding disc 4 is above the rotating disc 2, the driving mechanism is installed on the frame 1, the driving mechanism drives the eccentric shaft 5 to rotate, the driving mechanism drives the shaft 3 to rotate, and the rotating directions of the shaft 3 and the eccentric shaft 5 are opposite; further comprising a pressure sensor 16, one end of the pressure sensor 16 is connected with the shaft 3, and the other end of the pressure sensor 16 is connected with the outer edge of the grinding disc 4.

[0022] When working, the gear pump shell or other sealing parts are clamped to the clamping mechanism on the rotating disc 2, the driving mechanism drives the eccentric shaft 5 to rotate, the eccentric shaft 5 drives the rotating disc 2 to rotate eccentrically, the rotating disc 2 drives the parts on it to rotate eccentrically around the eccentric shaft 5, the driving mechanism drives the shaft 3 to rotate, the shaft 3 drives the grinding disc 4 and the grinding sheet 6 to rotate reversely relative to the parts, the shaft 3 is lowered to make the grinding sheet 6 grind the sealing surface of the parts, since the parts and the grinding sheet 6 are arranged eccentrically, the grinding path of the grinding sheet 6 to the sealing surface of the parts is complex and not fixed, thus the grinding track of the sealing surface is not fixed, which avoids that the abnormal points of the grinding sheet 6 cause the traces of monotonous concentric circle structure on the grinding surface, and is beneficial to improve the grinding effect of the sealing surface.

[0023] The pressure sensor 16 detects the pressure values of the sealing surface of the grinding parts at different positions when the grinding disc 4 rotates, and adjusts the lifting of the shaft 3 to control the pressure values to remain stable, so as to realize the stable grinding of the sealing surface of the parts, when the pressure values measured by the pressure sensor 16 at different angles remain stable, the sealing surface is ground to the same plane, that is, the high points of the sealing surface are eliminated, and the sealing performance can be improved by continuing to grind.

[0024] Embodiment 2

[0025] As Figure 5 and Figure 6As shown, on the basis of embodiment 1, the clamping mechanism comprises two sliding blocks 7, two clamping blocks 8, two racks 9, gear one 10, gear two 11 and long shaft 12, the upper end surface of the rotating disc 2 is provided with a sliding groove passing through the center, the two sliding blocks 7 are oppositely and slidably installed on both sides of the sliding groove of the rotating disc 2, the clamping blocks 8 are installed on the two sliding blocks 7 respectively, the two clamping blocks 8 are symmetrically arranged, the two racks 9 are connected with the two sliding blocks 7 respectively, the two racks 9 are arranged in parallel, a gap is arranged between the two racks 9, the gear one 10 is rotatably installed on the rotating disc 2, the gear one 10 is engaged with one of the racks 9, the gear two 11 is rotatably installed on the rotating disc 2, the gear two 11 is engaged with the other rack 9, the gear two 11 is engaged with the gear one 10, the long shaft 12 is rotatably installed on the rotating disc 2, and the inner end of the long shaft 12 is concentrically connected with the gear two 11; the two clamping blocks 8 are W-shaped; further comprising a worm wheel 13, a worm 14 and a hand wheel 15, the outer end of the long shaft 12 is concentrically installed with the worm wheel 13, the worm 14 is rotatably installed on the rotating disc 2, the worm 14 is engaged with the worm wheel 13, and the upper end of the worm 14 is installed with the hand wheel 15.

[0026] By rotating the worm 14 through the hand wheel 15, the worm 14 engages the worm wheel 13 to drive the long shaft 12 to rotate, the long shaft 12 drives the gear two 11 to rotate, the gear two 11 engages one of the racks 9 to drive one of the sliding blocks 7 and the clamping block 8 to move along the sliding groove of the rotating disc 2, at the same time, the gear two 11 engages the gear one 10 to drive it to rotate in the opposite direction, the gear one 10 engages the other rack 9 to drive the other sliding block 7 and the clamping block 8 to move in the opposite direction along the sliding groove of the rotating disc 2, so that the two sliding blocks 7 respectively drive the two clamping blocks 8 to relatively approach or move away, so that the two clamping blocks 8 concentrically clamp the sealing part on the rotating disc 2, the clamping is stable, the W-shaped clamping block 8 makes the two clamping blocks 8 approach to clamp the sealing part through both ends, and the two clamping blocks 8 move away to support the sealing part through the middle part, so as to realize clamping and expansion of the part, realize two kinds of clamping effect, and be suitable for parts of different sizes.

[0027] Embodiment 3

[0028] As Figures 1 to 4As shown, on the basis of embodiment 1, the driving mechanism comprises a motor 17, a driving shaft 18, a driving gear one 19, two-stage transmission wheels 20, a transmission belt one 21, a movable driving wheel 22, a fixed driving wheel 23, a crossbeam 24 and a transmission belt two 25, the motor 17 is installed on the frame 1, the driving shaft 18 is vertically rotatably installed on the frame 1, the driving gear one 19 is concentrically installed on the driving shaft 18, the two-stage transmission wheels 20 are rotatably installed on the frame 1, the two-stage transmission wheels 20 are provided with a gear and a driving wheel in series, the driving gear one 19 is in mesh with the gear of the two-stage transmission wheels 20, a driven wheel is provided on the eccentric shaft 5, the transmission belt one 21 is sleeved on the driving wheel of the two-stage transmission wheels 20 and the driven wheel of the eccentric shaft 5, the movable driving wheel 22 is in lifting transmission connection with the driving gear one 19 through a spline pair, the fixed driving wheel 23 is concentrically installed on the shaft rod 3, one end of the crossbeam 24 is rotatably connected with the fixed driving wheel 23, the other end of the crossbeam 24 is rotatably connected with the movable driving wheel 22, and the transmission belt two 25 is sleeved on the movable driving wheel 22 and the fixed driving wheel 23; the motor 17 drives the driving shaft 18 to rotate, the driving shaft 18 drives the driving gear one 19 and the movable driving wheel 22 to rotate, the driving gear one 19 drives the two-stage transmission wheels 20 to rotate in opposite directions, the two-stage transmission wheels 20 drive the eccentric shaft 5 and the rotating disc 2 to rotate through the transmission belt one 21, at the same time, the driving gear one 19 drives the movable driving wheel 22 to rotate through the spline pair, the movable driving wheel 22 drives the fixed driving wheel 23 to rotate through the transmission belt two 25, and the fixed driving wheel 23 drives the shaft rod 3 and the grinding disc 4 to rotate, the shaft rod 3 drives the movable driving wheel 22 to synchronously lift and descend through the crossbeam 24 when the shaft rod 3 lifts and descends, so that the grinding disc 4 and the rotating disc 2 relatively rotate, and the driving effect is good.

[0029] As Figures 1 to 6As shown, the gear pump sealing surface grinding device, in working, first gear pump housing or other sealing components clamped to the clamping mechanism on the turntable 2, after motor 17 drive drive shaft 18 rotation, drive shaft 18 drive gear one 19 and movable drive wheel 22 rotation, drive gear one 19 drive two-stage transmission wheel 20 reverse rotation, two-stage transmission wheel 20 through the transmission belt one 21 drive eccentric shaft 5 rotation, eccentric shaft 5 drive turntable 2 eccentric rotation, turntable 2 drive its on component eccentric rotation around eccentric shaft 5, then drive gear one 19 through spline pair drive movable drive wheel 22 rotation, movable drive wheel 22 through transmission belt two 25 drive fixed drive wheel 23 rotation, fixed drive wheel 23 drive shaft 3 and grinding disc 4 rotation, in the shaft 3 lifting through beam 24 drive movable drive wheel 22 synchronous lifting, realize grinding disc 4 and turntable 2 relative rotation, shaft 3 drop makes that grinding piece 6 to the sealing surface of component grinding, pressure sensor 16 detects the pressure value of the sealing surface of grinding component at different positions when grinding disc 4 rotates, and the pressure value is kept stable by adjusting the lifting of shaft 3, realizing stable grinding of the sealing surface of the component, finally when the pressure value measured by pressure sensor 16 at different angles is kept stable, the sealing surface is ground to the same plane, continue to grind until the sealing property is up to standard.

[0030] The main function realized by the utility model is:

[0031] 1. The eccentric arrangement of the turntable and the grinding disc improves the complexity of the grinding path of the sealing surface and improves the grinding effect of the sealing surface.

[0032] 2. It can clamp sealing components of different diameters, and has good versatility.

[0033] 3. The pressure value of the grinding disc at different angles is detected by the pressure sensor, improving the grinding sealing property.

[0034] The installation mode, connection mode or setting mode of the gear pump sealing surface grinding device of the utility model are all common mechanical modes, as long as the beneficial effects can be achieved, and the implementation can be carried out; the turntable 2, shaft 3, grinding disc 4, eccentric shaft 5, grinding piece 6, sliding block 7, rack 9, gear one 10, gear two 11, long shaft 12, worm wheel 13, worm 14, pressure sensor 16, motor 17, drive shaft 18, drive gear one 19, two-stage transmission wheel 20, transmission belt one 21, movable drive wheel 22, fixed drive wheel 23, transmission belt two 25 of the gear pump sealing surface grinding device of the utility model are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the technical personnel in the field paying creative labor.

[0035] All the technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which the present application belongs. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0036] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A gear pump sealing surface grinding device, comprising a frame (1), a turntable (2), a shaft (3), and a grinding disc (4); characterized in that, It also includes an eccentric shaft (5), a grinding disc (6), a clamping mechanism and a driving mechanism. The eccentric shaft (5) is installed at an eccentric position on the lower end face of the turntable (2). The eccentric shaft (5) is rotatably mounted on the frame (1). The clamping mechanism is installed on the upper end face of the turntable (2). The shaft (3) is rotatably mounted on the frame (1) in a liftable manner. The grinding disc (4) is concentrically mounted on the lower end of the shaft (3). The grinding disc (6) is mounted on the lower end face of the grinding disc (4). The grinding disc (4) is located above the turntable (2). The driving mechanism is mounted on the frame (1). The driving mechanism drives the eccentric shaft (5) to rotate. The driving mechanism drives the shaft (3) to rotate. The shaft (3) and the eccentric shaft (5) rotate in opposite directions.

2. The gear pump sealing surface grinding device as described in claim 1, characterized in that, The clamping mechanism includes two sliders (7), two clamping blocks (8), two racks (9), gear one (10), gear two (11), and a long shaft (12). A groove passing through the center of the circle is provided on the upper surface of the turntable (2). The two sliders (7) are slidably mounted on opposite sides of the groove on the turntable (2). Clamping blocks (8) are mounted on both sliders (7) and are symmetrically arranged. Two racks (9) are connected to the two sliders (7) respectively. The racks are arranged in parallel with a gap between them. Gear 1 (10) is rotatably mounted on the turntable (2) and meshes with one rack (9). Gear 2 (11) is rotatably mounted on the turntable (2) and meshes with another rack (9). Gear 2 (11) meshes with gear 1 (10). Long shaft (12) is rotatably mounted on the turntable (2) and the inner end of long shaft (12) is concentrically connected with gear 2 (11).

3. The gear pump sealing surface grinding device as described in claim 2, characterized in that, The two clamps (8) are W-shaped.

4. The gear pump sealing surface grinding device as described in claim 2, characterized in that, It also includes a worm wheel (13), a worm (14) and a handwheel (15). The worm wheel (13) is concentrically mounted on the outer end of the long shaft (12). The worm (14) is rotatably mounted on the turntable (2). The worm (14) meshes with the worm wheel (13). The handwheel (15) is mounted on the upper end of the worm (14).

5. The gear pump sealing surface grinding device as described in claim 1, characterized in that, It also includes a pressure sensor (16), one end of which is connected to the shaft (3), and the other end of which is connected to the outer edge of the grinding disc (4).

6. The gear pump sealing surface grinding device as described in claim 1, characterized in that, The drive mechanism includes a motor (17), a drive shaft (18), a first drive gear (19), two-stage transmission wheels (20), a first transmission belt (21), a movable drive wheel (22), a fixed drive wheel (23), a crossbeam (24), and a second transmission belt (25). The motor (17) is mounted on the frame (1), the drive shaft (18) is vertically rotatably mounted on the frame (1), the first drive gear (19) is concentrically mounted on the drive shaft (18), and the two-stage transmission wheels (20) are rotatably mounted on the frame (1). The two-stage transmission wheels (20) are connected in series with a gear and a drive wheel. The first drive gear (19) and the two-stage transmission wheels (21) are connected in series with the drive shaft (18). The gears of the two-stage transmission wheel (20) mesh, the driven wheel is set on the eccentric shaft (5), the transmission belt one (21) is fitted on the driving wheel of the two-stage transmission wheel (20) and the driven wheel of the eccentric shaft (5), the movable drive wheel (22) is connected to the drive gear one (19) through a spline pair for adjustable transmission, the fixed drive wheel (23) is concentrically mounted on the shaft (3), one end of the crossbeam (24) is rotatably connected to the fixed drive wheel (23), the other end of the crossbeam (24) is rotatably connected to the movable drive wheel (22), and the transmission belt two (25) is fitted on the movable drive wheel (22) and the fixed drive wheel (23).

Images