CN210588769U - Automatic positioning structure of stop valve grinding machine - Google Patents
Automatic positioning structure of stop valve grinding machine Download PDFInfo
- Publication number
- CN210588769U CN210588769U CN201920845773.8U CN201920845773U CN210588769U CN 210588769 U CN210588769 U CN 210588769U CN 201920845773 U CN201920845773 U CN 201920845773U CN 210588769 U CN210588769 U CN 210588769U
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- bevel gear
- driving gear
- stop valve
- screw
- positioning structure
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Abstract
The utility model belongs to the technical field of grind the machine, a stop valve grinds quick-witted automatic positioning structure is proposed, including the centring axle device, the centring axle device is used for fixing on table surface, first bevel gear cover is established on the outer wall of centring axle device, be provided with first tooth portion and second tooth portion on the first bevel gear, first tooth portion and driving gear engagement, second bevel gear is two at least, second bevel gear centers on first bevel gear evenly distributed, and all with the meshing of second tooth portion, second bevel gear's center pin is perpendicular with the central axis of centering sleeve, the lead screw is connected with second bevel gear's center pin, the screw cover is established on the lead screw, the locating pawl sets up on the screw, rotate along with the centering dish, the locating pawl moves to the direction of keeping away from the centering sleeve along the. Through above-mentioned technical scheme, the problem of among the prior art three-jaw tight regulation that rises adopts single-jaw to adjust, can not once only rise tightly fixed, complex operation wastes time and energy, influences work efficiency is solved.
Description
Technical Field
The utility model belongs to the technical field of grind the machine, a stop valve grinds machine automatic positioning structure is related to.
Background
In the process of regular maintenance of valve equipment by enterprises such as power plants, chemical engineering and the like, if the sealing surface of the valve is corroded and damaged. Replacement of new valves increases production costs, especially for medium and large sized valves. The manual grinding maintenance mode is time-consuming and labor-consuming, the working efficiency is low, most valve maintenance needs to be carried out on line, the maintenance difficulty is further increased, and therefore the portable valve grinding machine can be transported as soon as possible. The stop valve grinder is used for grinding and maintaining a valve seat of the stop valve. The traditional grinding machine frame clamping and fixing mode for grinding and maintaining the valve seat of the stop valve adopts a bolt fixing mode and a three-jaw tensioning and fixing mode, but the three-jaw tensioning and adjusting mode adopts single-jaw adjustment, cannot be used for tensioning and fixing at one time, is complex in operation, wastes time and labor, and affects the working efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a stop valve grinds quick-witted automatic positioning structure has solved among the prior art three-jaw tight regulation that rises and has adopted single-jaw to adjust, can not once only rise tight fixed, complex operation wastes time and energy, influences work efficiency's problem.
The technical scheme of the utility model is realized like this:
an automatic positioning structure of a stop valve grinding machine comprises
A centering shaft device, which is used for being fixed on the working table surface,
the driving gear is provided with a driving gear,
the first bevel gear is rotatably sleeved on the outer wall of the centering shaft device and is provided with a first tooth part and a second tooth part, the first tooth part is arranged on the cylindrical outer surface of the first bevel gear, the second tooth part is arranged on the conical outer surface of the first bevel gear, and the first tooth part is meshed with the driving gear,
at least two second bevel gears are arranged, the second bevel gears are uniformly distributed around the first bevel gear and are meshed with the bevel teeth of the first bevel gear, the central axes of the second bevel gears are perpendicular to the central axis of the centering shaft device,
a screw rod connected with the central shaft of the second bevel gear,
the screw nut is sleeved on the screw rod,
the positioning claw is arranged on the nut.
As a further technical proposal, a moving groove is arranged in the positioning claw, the screw nut is connected with the inner wall of the moving groove, the screw rod is arranged in the moving groove,
the lead screw is kept away from an pot head of second bevel gear is equipped with the stopper, the external diameter less than or equal to of stopper the internal diameter of shifting chute, the stopper slides and sets up in the shifting chute.
As a further technical scheme, one side of the positioning pawl is arranged in a step shape, and the thickness of the positioning pawl is gradually reduced from the position close to the second bevel gear to the position far away from the second bevel gear.
As a further technical scheme, the centering device also comprises a fixed block, the fixed block is connected with the outer wall of the centering shaft device, a mounting groove is arranged in the fixed block, the driving gear and the first bevel gear are both rotatably arranged in the mounting groove,
still include the axis of rotation, the axis of rotation is worn to establish on the driving gear, and with driving gear connection, the axis of rotation with driving gear connection's one end sets up in the mounting groove, the axis of rotation with driving gear connection's the other end sets up outside the mounting groove.
As a further technical scheme, the cross section of the other end of the rotating shaft, which is connected with the driving gear, is hexagonal.
As a further technical scheme, the outer side of the rotating shaft is sleeved with first bearings, the first bearings are arranged in the mounting grooves, and the two first bearings are respectively located on two sides of the driving gear.
As a further technical scheme, a second bearing is arranged between the first bevel gear and the centering shaft device, the second bearing is fixedly sleeved on the outer side of the centering shaft device, and the first bevel gear is connected with the outer wall of the second bearing.
The utility model discloses a theory of operation and beneficial effect do:
1. the utility model discloses in the course of the work, at first fix centering shaft device on table surface, make the driving gear rotate, the driving gear drives first bevel gear and rotates, because second bevel gear and first bevel gear's second tooth portion meshing, make second bevel gear rotate along with first bevel gear, drive the lead screw rotation with second bevel gear's center pin connection simultaneously, make the screw move on the lead screw, make the locating pawl move on the lead screw along with the screw, thereby realize the inside and outside regulation of locating pawl, and the in-process of adjusting inside and outside the locating pawl, centering dish promotes the locating pawl and follows centering sleeve up-and-down motion, the locating pawl just can be fixed the work piece chucking around setting up the both sides at centering dish for two at least. Reasonable in design is ingenious, convenient operation can adjust a plurality of locating pawls simultaneously, and labour saving and time saving improves work efficiency.
2. The utility model discloses well internal wall connection of screw and shifting chute, the lead screw sets up in the shifting chute, be favorable to the protection to lead screw and screw, strengthen the stability that the positioning pawl removed simultaneously, the pleasing to the eye degree of reinforcing, the setting of stopper, the stopper moves at the shifting chute when screw and positioning pawl motion, because the external diameter of stopper is greater than the diameter of lead screw, and the internal diameter of less than or equal to shifting chute, the stopper slides and sets up in the shifting chute, can carry out accurate injeciton to the removal route of positioning pawl, avoid the removal route skew of positioning pawl, the design is simple, therefore, the clothes hanger is strong in practicability.
3. The utility model discloses in, one side of locating pawl is the echelonment setting, and each gradient can be applicable to a size, is favorable to strengthening location structure's practicality. The thickness of the positioning claw is gradually reduced from the direction close to the second bevel gear to the direction far away from the second bevel gear, so that the workpiece can be clamped.
4. The utility model discloses well fixed block is used for providing for the driving gear and relies on, protects the driving gear, avoids directly exposing outside, makes the driving gear can be steady mesh with first bevel gear, increases the life of driving gear. The setting of axis of rotation is convenient for to the drive of driving gear, directly drives the axis of rotation and rotates and to make the driving gear rotate, and the design is simple, labour saving and time saving.
5. The utility model discloses the cross section of the other end of well axis of rotation and driving gear connection is the hexagon, can directly establish the spanner cover in this one end of axis of rotation, moves the spanner through twisting and drives the axis of rotation motion, and the axis of rotation drives the driving gear rotation again, realizes the regulation to the locating pawl, reasonable in design, labour saving and time saving.
6. The utility model discloses the outside cover of well axis of rotation is equipped with first bearing, and first bearing is two, is located the both sides of driving gear respectively, is favorable to reducing the friction of axis of rotation and mounting groove inner wall, also can make axis of rotation and driving gear rotate more steadily simultaneously, strengthens the reliability.
7. The utility model discloses well second bearing's setting is favorable to reducing the friction between first bevel gear and the centering shaft device, and reinforcing life guarantees first bevel gear pivoted smoothness nature.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view taken along the direction A in FIG. 1;
in the figure: 1-a centering shaft device, 2-a driving gear, 3-a first bevel gear, 4-a second bevel gear, 5-a screw rod, 6-a nut, 7-a positioning claw, 8-a moving groove, 9-a limiting block, 10-a rotating shaft, 11-a fixing block, 12-a first bearing and 13-a second bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 efforts belong to the protection scope of the present invention.
As shown in fig. 1-2, the utility model provides an automatic positioning structure of a stop valve grinder,
comprises a centering shaft device 1, the centering shaft device 1 is used for being fixed on a working table surface,
the drive gear wheel 2 is provided with a drive gear wheel,
a first bevel gear 3, the first bevel gear 3 is rotationally sleeved on the outer wall of the centering shaft device 1, a first tooth part and a second tooth part are arranged on the first bevel gear 3, the first tooth part is arranged on the cylindrical outer surface of the first bevel gear 3, the second tooth part is arranged on the conical outer surface of the first bevel gear 3, the first tooth part is meshed with the driving gear 2,
at least two second bevel gears 4 are arranged, the second bevel gears 4 are uniformly distributed around the first bevel gear 3 and are all meshed with the bevel teeth of the first bevel gear 3, the central axis of the second bevel gear 4 is vertical to the central axis of the centering sleeve 1,
a screw rod 5, the screw rod 5 is connected with the central shaft of the second bevel gear 4,
a screw nut 6, the screw nut 6 is sleeved on the screw rod 5,
a positioning claw 7, the positioning claw 7 is arranged on the screw nut 6,
as the centering disk 2 rotates, the positioning pawl 7 moves along the threaded spindle 5 in a direction away from the centering sleeve 1 and along the centering sleeve 1.
In the working process of the present embodiment, firstly, the centering shaft device 1 is fixed on the working table, so that the driving gear 2 rotates, the driving gear 2 drives the first bevel gear 3 to rotate, the second bevel gear 4 is engaged with the second tooth portion of the first bevel gear 3, so that the second bevel gear 4 rotates along with the first bevel gear 3, and at the same time, the screw 5 connected with the central shaft of the second bevel gear 4 is driven to rotate, so that the nut 6 moves on the screw 5, so that the positioning pawl 7 moves on the screw 5 along with the nut 6, thereby realizing the inside and outside adjustment of the positioning pawl 7, and in the inside and outside adjustment process of the positioning pawl 7, the centering disc 2 pushes the positioning pawl 7 to move up and down along the centering sleeve 1, and at least two positioning pawls 7 can clamp and fix the workpiece around two sides of the centering disc 2. Reasonable in design is ingenious, convenient operation can adjust a plurality of locating claws 7 simultaneously, and labour saving and time saving improves work efficiency.
Furthermore, a moving groove 8 is arranged in the positioning claw 7, the screw nut 6 is connected with the inner wall of the moving groove 8, the screw rod 5 is arranged in the moving groove 8,
one pot head that lead screw 5 kept away from second bevel gear 4 is equipped with stopper 9, and stopper 9's external diameter less than or equal to moving groove 8's internal diameter, stopper 9 slide to set up in moving groove 8.
In this embodiment, the internal wall connection of screw 6 and shifting chute 8, lead screw 5 sets up in shifting chute 8, be favorable to the protection to lead screw 5 and screw 6, strengthen the stability that positioning pawl 7 removed simultaneously, the pleasing to the eye degree of reinforcing, the setting of stopper 9, stopper 9 moves at shifting chute 8 when screw 6 and positioning pawl 7 move, because the external diameter of stopper 9 is greater than lead screw 5's diameter, and the internal diameter of less than or equal to shifting chute 8, can carry out accurate injeciton to the removal route of positioning pawl 7, avoid the removal route skew of positioning pawl 7, the design is simple, therefore, the clothes hanger is strong in practicability.
Further, one side of the positioning pawl 7 is arranged in a step shape, and the thickness of the positioning pawl 7 gradually decreases from the direction close to the second bevel gear 4 to the direction far away from the second bevel gear 4.
In this embodiment, one side of the positioning pawl 7 is arranged in a ladder shape, and each gradient can be applied to one size, which is beneficial to enhancing the practicability of the positioning structure. The thickness of the positioning claws 7 gradually decreases from the direction close to the second bevel gear 4 to the direction away from the second bevel gear 4, and the clamping of the workpiece can be realized.
Further comprises a fixed block 11, the fixed block 11 is connected with the outer wall of the centering shaft device 1, a mounting groove is arranged in the fixed block 11, the driving gear 2 and the first bevel gear 3 are both rotatably arranged in the mounting groove,
still include axis of rotation 10, axis of rotation 10 wears to establish on driving gear 2, and is connected with driving gear 2, and the one end setting that axis of rotation 10 and driving gear 2 are connected is in the mounting groove, and the other end setting that axis of rotation 10 and driving gear 2 are connected is outside the mounting groove.
Fixed block 11 is used for providing the support for driving gear 2 in this embodiment, protects driving gear 2, avoids directly exposing outside, makes driving gear 2 can be steady mesh with first bevel gear, increases driving gear 2's life. The setting of axis of rotation 10 is convenient for to the drive of driving gear 2, directly drives axis of rotation 10 and rotates and to make driving gear 2 rotate, and the design is simple, labour saving and time saving.
Further, the cross section of the other end of the rotating shaft connected with the driving gear 2 is hexagonal.
The cross section of the other end that the axis of rotation is connected with driving gear 2 in this embodiment is the hexagon, can directly overlap the spanner and establish this one end of axis of rotation 10, drives axis of rotation 10 through twisting the spanner and moves, and axis of rotation 10 drives driving gear 2 again and rotates, realizes the regulation to positioning pawl 7, reasonable in design, labour saving and time saving.
Further, the outside cover of axis of rotation is equipped with first bearing 12, and first bearing 12 sets up in the mounting groove, and first bearing 12 is two, is located the both sides of driving gear 2 respectively.
The outside cover of axis of rotation 10 in this embodiment is equipped with first bearing 12, and first bearing 12 is two, is located the both sides of driving gear 2 respectively, is favorable to reducing the friction of axis of rotation 10 with the mounting groove inner wall, also can make axis of rotation 10 and driving gear 2 rotate more steadily simultaneously, reinforcing reliability.
Further, a second bearing 13 is arranged between the first bevel gear 3 and the centering shaft device 1, the second bearing 13 is fixedly sleeved on the outer side of the centering shaft device 1, and the first bevel gear 3 is connected with the outer wall of the second bearing 13.
The setting of second bearing 13 in this embodiment is favorable to reducing the friction between first bevel gear and centering shaft device 1, strengthens life, guarantees the smoothness nature of first bevel gear 3 pivoted.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An automatic positioning structure of a stop valve grinding machine is characterized by comprising
A centering shaft device (1), wherein the centering shaft device (1) is used for being fixed on a working table surface,
a driving gear (2),
the first bevel gear (3) is rotatably sleeved on the outer wall of the centering shaft device (1), a first tooth part and a second tooth part are arranged on the first bevel gear (3), the first tooth part is arranged on the cylindrical outer surface of the first bevel gear (3), the second tooth part is arranged on the conical outer surface of the first bevel gear (3), the first tooth part is meshed with the driving gear (2),
at least two second bevel gears (4), wherein the second bevel gears (4) are uniformly distributed around the first bevel gear (3) and are all meshed with the second tooth part, the central axis of the second bevel gears (4) is vertical to the central axis of the centering shaft device (1),
a screw rod (5), the screw rod (5) is connected with the central shaft of the second bevel gear (4),
the screw nut (6), the screw nut (6) is sleeved on the screw rod (5),
the positioning claw (7), the positioning claw (7) sets up on screw (6).
2. The automatic positioning structure of the stop valve grinding machine according to claim 1, characterized in that a moving groove (8) is provided in the positioning pawl (7), the screw nut (6) is connected with the inner wall of the moving groove (8), the lead screw (5) is provided in the moving groove (8),
lead screw (5) are kept away from one pot head of second bevel gear (4) is equipped with stopper (9), the external diameter less than or equal to of stopper (9) the internal diameter of shifting chute (8), stopper (9) slide to set up in shifting chute (8).
3. The automatic positioning structure of the stop valve grinder according to claim 1, characterized in that one side of the positioning pawl (7) is arranged in a step shape, and the thickness of the positioning pawl (7) is gradually reduced from the direction close to the second bevel gear (4) to the direction away from the second bevel gear (4).
4. The automatic positioning structure of the stop valve grinding machine according to claim 1, characterized in that it further comprises a fixing block (11), said fixing block (11) is connected with the outer wall of said centering shaft device (1), an installation groove is arranged in said fixing block (11), said driving gear (2) and said first bevel gear (3) are both rotatably arranged in said installation groove,
still include axis of rotation (10), axis of rotation (10) wear to establish on driving gear (2), and with driving gear (2) are connected, axis of rotation (10) with the one end setting that driving gear (2) are connected is in the mounting groove, axis of rotation (10) with the other end setting that driving gear (2) are connected is in outside the mounting groove.
5. The automatic positioning structure of a stop valve grinder as claimed in claim 4, wherein the cross section of the other end of the rotating shaft connected to the driving gear (2) is hexagonal.
6. The automatic positioning structure of the stop valve grinding machine according to claim 5, characterized in that the outer side of the rotating shaft is sleeved with a first bearing (12), the first bearing (12) is arranged in the mounting groove, and the number of the first bearings (12) is two, and the two bearings are respectively arranged at two sides of the driving gear (2).
7. The automatic positioning structure of the stop valve grinder according to claim 1, characterized in that a second bearing (13) is arranged between the first bevel gear (3) and the centering shaft device (1), the second bearing (13) is fixedly sleeved outside the centering shaft device (1), and the first bevel gear (3) is connected with the outer wall of the second bearing (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845773.8U CN210588769U (en) | 2019-06-05 | 2019-06-05 | Automatic positioning structure of stop valve grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845773.8U CN210588769U (en) | 2019-06-05 | 2019-06-05 | Automatic positioning structure of stop valve grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210588769U true CN210588769U (en) | 2020-05-22 |
Family
ID=70698763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920845773.8U Expired - Fee Related CN210588769U (en) | 2019-06-05 | 2019-06-05 | Automatic positioning structure of stop valve grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210588769U (en) |
-
2019
- 2019-06-05 CN CN201920845773.8U patent/CN210588769U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 Termination date: 20210605 |
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| CF01 | Termination of patent right due to non-payment of annual fee |