CN111130261B - Manually-operated motor base adjuster - Google Patents
Manually-operated motor base adjuster Download PDFInfo
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- CN111130261B CN111130261B CN201911345994.XA CN201911345994A CN111130261B CN 111130261 B CN111130261 B CN 111130261B CN 201911345994 A CN201911345994 A CN 201911345994A CN 111130261 B CN111130261 B CN 111130261B
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- upper plate
- sleeve
- lower plate
- drum
- sliding rod
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
Abstract
The invention belongs to the field of auxiliary equipment of pumping units, and particularly relates to a manually operated motor base adjuster which comprises an upper plate, a lower plate, a rolling shaft and a driving mechanism, wherein the upper plate and the lower plate are arranged in parallel up and down; actuating mechanism, its structure includes U-shaped frame, slide bar, fixed cover, tension indicating spring and lead screw, and wherein, two parallel district section cover of U-shaped frame are on the cylinder district section on each roller bearing, the one end of slide bar and the tip fixed connection of U-shaped frame, the other end slides the cartridge in fixed cover, and fixed cover fixed mounting is in the frame of beam-pumping unit. Compared with the prior art, the motor bracket capable of quickly adjusting the position of the motor has the advantages of simplicity in operation, high efficiency, low manpower and material resource consumption and the like.
Description
Technical Field
The invention belongs to the field of auxiliary equipment of pumping units, and particularly relates to a manually operated motor base adjuster.
Background
In the petroleum industry production of China, a beam pumping unit is a mainstream oil extraction device. A high-power motor and a speed reducer are arranged in the beam pumping unit, and the motor and the speed reducer are in power connection through a belt and a belt pulley. The belt can appear slightly lax after using for a period under the heavy load operating mode, leads to the belt wearing and tearing to accelerate, and the belt life-span shortens, and mechanical efficiency descends. In addition, in cold areas in the north of China, the temperature difference is large in winter and summer, and the belt is easy to loosen under the action of expansion with heat and contraction with cold. Therefore, the worker often needs to finely adjust the installation position of the motor. At present, when the position of a motor is adjusted, all mounting bolts of the motor need to be detached, then the motor is hoisted by using a crane, the position of the motor is adjusted, the tension of a belt needs to be tested after the motor is adjusted, and the belt needs to be adjusted again after the belt is unqualified in test. Therefore, the existing motor adjusting mode has the problems of complex operation, low efficiency, large consumption of manpower and material resources and the like, and therefore, a brand new motor adjusting mode is needed to be designed to solve the problems.
Disclosure of Invention
The present invention provides a manually operated motor base adjuster to solve the problems set forth in the background above.
The technical problem solved by the invention is realized by adopting the following technical scheme:
the invention comprises an upper plate, a lower plate, a roller and a driving mechanism, wherein the upper plate and the lower plate are arranged in parallel up and down, the roller is clamped between the upper plate and the lower plate, a gear section and a cylindrical section are arranged on the roller, and racks meshed with the gear section are arranged on the lower side of the upper plate and the upper side of the lower plate;
the driving mechanism structurally comprises a U-shaped frame, a sliding rod, a fixed sleeve, a tension indicating spring and a lead screw, wherein two parallel sections of the U-shaped frame are sleeved on cylindrical sections of the rolling shafts, one end of the sliding rod is fixedly connected with the end part of the U-shaped frame, the other end of the sliding rod is inserted in the fixed sleeve in a sliding manner, the fixed sleeve is fixedly arranged on a rack of the oil pumping unit, the lead screw is connected with the end part of the fixed sleeve through threads and extends into the fixed sleeve, the tension indicating spring is arranged in the fixed sleeve, and the position of the tension indicating spring is positioned between the end part of the lead screw and the;
the driving mechanism is internally provided with a pre-tightening sleeve, the pre-tightening sleeve is connected with the inside of the fixed sleeve through threads, the position of the pre-tightening sleeve is positioned on the outer side of the screw rod, four radial blind holes are processed on the outer side of the pre-tightening sleeve, the four radial blind holes are arranged in two rows and two columns along the axial direction and the radial direction of the pre-tightening sleeve, a window is arranged on the side wall of the fixed sleeve corresponding to the radial blind holes, and the size of the window can ensure that the four radial blind holes are;
the windows are at least arranged in two circles along the axial direction, at least three rows are arranged along the circumferential direction, in the axial direction, the minimum distance between every two adjacent windows is not more than the minimum distance between every two radial blind holes in the axial direction on the pre-tightening sleeve, and in the circumferential direction, the minimum angular distance between every two adjacent windows is not more than the minimum angular distance between every two radial blind holes in the circumferential direction on the pre-tightening sleeve;
be provided with fast lock mechanism between upper plate and the hypoplastron, its structure includes double-screw bolt, slider, handle and lock nut, and wherein, the lower extreme fixed connection of double-screw bolt is on the hypoplastron, and slider and handle all suit are on the double-screw bolt, and lock nut passes through threaded connection in the upper end of double-screw bolt, and the lower extreme of slider is square structure, be provided with the slide that matches with this square structure on the upper plate, the slider through this square structure with the slide cooperation, the contact surface between handle and the slider is the helicoid, and the helix angle of this helicoid is 360, and the helix lead angle of this helicoid is less than its friction angle.
As a further technical scheme, the tension indicating spring is a belleville spring.
As a further technical scheme, in the quick lock mechanism, a drum-shaped elastic part is sleeved on the stud, the drum-shaped elastic part is of a sleeve structure, the inner surface and the outer surface of the drum-shaped elastic part are both drum-shaped structures with the middle parts protruding outwards, and an axial slot penetrating through the inside and the outside is processed in the middle part of the drum-shaped elastic part;
the drum-shaped elastic piece is made of spring steel;
and anti-skid teeth are processed on the spiral surface.
As a further technical scheme, the downside of upper plate and the upside of hypoplastron all are provided with the bar groove that the cross section is isosceles trapezoid, the rack be located the tank bottom in bar groove, the edge processing of gear section has the chamfer of matcing with the inner wall in bar groove.
As a further technical solution, the lower side of the upper plate and the upper side of the lower plate both abut against the cylindrical section.
As a further technical scheme, two lugs are arranged on the outer side of the fixed sleeve, wherein the lug far away from the slide rod is hinged on the rack, the lug close to the slide rod is connected on the rack through a bolt, and a notch for the slide rod to pass through is formed in the side surface of the fixed sleeve.
The invention has the beneficial effects that:
1. compared with the prior art, the motor bracket capable of quickly adjusting the position of the motor has the advantages of simplicity in operation, high efficiency, low manpower and material resource consumption and the like.
2. The invention adopts the roller as the support resistance-reducing support structure of the upper plate, and drives the upper plate to move by pushing the roller to roll on the lower plate through the U-shaped frame, thereby having the advantages of ingenious structure, labor-saving operation, reliable support and strong bearing capacity. In addition, the roller adopts a structural form that the gear section is combined with the cylindrical section, the gear section can ensure that the position of the roller between the upper plate and the lower plate is stable, the problems of uncontrolled torsion, string position and the like can not occur, and the cylindrical section can directly support the upper plate and the lower plate, so that the bearing capacity of the upper plate is effectively improved.
3. According to the invention, the tension indicating spring is arranged in the driving mechanism, when the position of the motor is adjusted, the compression degree of the tension indicating spring can be judged by observing the exposed length of the lead screw, and then the tension of the belt is roughly judged, so that the belt can be quickly adjusted to the optimal use state. In addition, the pre-tightening sleeve is arranged in the driving mechanism, the tension indicating spring can be pre-compressed through the pre-tightening sleeve, after pre-compression, the function of the tension indicating spring cannot be influenced, but the stroke of the lead screw is greatly reduced during adjustment, so that the operation efficiency is greatly improved.
4. When the types of the pumping units are different, the tension of the belt is different, the compression amount of the tension indicating spring is also different, and the tension indicating spring and the fixed sleeve need to be relatively displaced by rotating the pre-tightening sleeve, so that the pre-tightening amount of the tension indicating spring can be adjusted. The invention provides a method for adjusting a pre-tightening sleeve, which has a unique and simple structure and comprises the following steps:
in the invention, four radial blind holes are processed on the outer side of the pre-tightening sleeve, the four radial blind holes are arranged in two rows and two columns along the axial direction and the radial direction of the pre-tightening sleeve, a window is arranged on the side wall of the fixed sleeve corresponding to the radial blind holes, and the size of the window can ensure that the four radial blind holes are completely exposed; the window sets up two circles at least along the axial, is provided with three rows at least along circumference, and in the axial, the minimum distance between two adjacent windows is not more than the minimum distance between two radial blind holes along the axial on the pretension cover, and in circumference, the minimum angular distance between two adjacent windows is not more than the minimum angular distance between two radial blind holes along the circumferencial direction on the pretension cover. After the structural requirements are met, a round rod is inserted into one radial blind hole, the round rod is pulled to enable the round rod to reach the extreme position, the other radial blind hole is exposed from the other window, then the round rod is pulled down to enable the round rod to be matched with the radial blind hole which is just exposed, the process is repeated, the pre-tightening sleeve can rotate, and the pre-tightening sleeve can move within a longer axial distance range. Meanwhile, after the adjustment is finished, the round rod is left in the radial blind hole, and a round rod is inserted into other radial blind holes, so that the pre-tightening sleeve can be effectively prevented from rotating uncontrollably. The mode of arranging a plurality of windows along the axial direction is adopted, and compared with the mode of arranging a longer window, the structural strength of the fixing sleeve can be fully ensured.
5. According to the belt pulley, the driving mechanism is arranged to be of the turnover type structure, the notch for the sliding rod to pass through is formed in the side face of the fixed sleeve, when the belt is replaced, the driving mechanism rotates 90 degrees anticlockwise, enough space for the sliding rod to retreat can flow out, so that the belt can be easily installed on the belt pulley, and the installation difficulty of the belt is greatly reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view at A in FIG. 1;
FIG. 3 is a schematic view of the roller of FIG. 2;
FIG. 4 is a schematic view of another arrangement of engagement between the upper and lower plates and the roller;
FIG. 5 is a schematic view of the roller of FIG. 4;
FIG. 6 is a schematic structural view of the upper end face of the slider;
FIG. 7 is a schematic view of the construction of a drum spring;
FIG. 8 is a cross-sectional view at B in FIG. 1;
FIG. 9 is a schematic structural view of another embodiment of the drive mechanism;
fig. 10 is a schematic view of the construction of the quick lock mechanism of fig. 1.
In the figure: 1-screw rod, 2-pre-tightening sleeve, 3-window, 4-radial blind hole, 5-tension indication spring, 6-fixing sleeve, 7-sliding rod, 8-U-shaped frame, 9-upper plate, 10-lower plate, 11-roller, 12-rack, 13-slideway, 14-cylindrical section, 15-gear section, 16-chamfer, 17-helical surface, 18-anti-slip tooth, 19-axial slit, 20-round rod, 21-square structure, 22-sliding block, 23-drum elastic piece, 24-stud, 25-locking nut, 26-handle, 27-lug, 28-bolt and 29-notch.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, the present embodiment includes an upper plate 9, a lower plate 10, a roller 11 and a driving mechanism, wherein the upper plate 9 and the lower plate 10 are arranged in parallel up and down, the roller 11 is sandwiched between the upper plate 9 and the lower plate 10, the roller 11 is provided with a gear section 15 and a cylindrical section 14, and the lower side of the upper plate 9 and the upper side of the lower plate 10 are both provided with a rack 12 engaged with the gear section 15. The lower side of the upper plate 9 and the upper side of the lower plate 10 each bear against a cylindrical section 14.
The roller 11 adopts a structure form that the gear section 15 is combined with the cylindrical section 14, the arrangement of the gear section 15 can ensure that the position of the roller 11 between the upper plate 9 and the lower plate 10 is stable, the problems of uncontrolled torsion, string position and the like can not occur, and the cylindrical section 14 can directly support the upper plate 9 and the lower plate 10, thereby effectively improving the bearing capacity of the upper plate 9. In particular, the roller consisting of the gear section 15 and the cylindrical section 14 has the following advantages:
1. in the prior art, in order to reduce the sliding resistance between two flat plates, a common method is to arrange a group of cylindrical rollers between the two flat plates, when the method is adopted, two ends of each roller need to be fixedly connected to the flat plate on the lower side, the middle of each roller needs to be suspended, otherwise the rollers cannot smoothly rotate, and the suspension of the rollers inevitably reduces the bearing capacity of the rollers. In the invention, the whole length of the roller 11 does not need to be suspended, that is, the whole length of the roller 11 plays a bearing role, so that the bearing capacity of the upper plate 9 is effectively improved, which is particularly important for a motor which is used on a beam pumping unit and weighs hundreds of kilograms.
2. Although each roller 11 is merely sandwiched between the upper plate 9 and the lower plate 10, the spaced arrangement of the gear section 15 and the cylindrical section 14 ensures the stability of the position of the roller, not only does the roller 11 itself not undergo uncontrolled displacement, but also ensures the absolute synchronization of the position of the upper plate 9 with the position of the roller 11, thereby ensuring the stability of the position of the upper plate 9.
3. When the pumping unit works, the pumping unit is arranged on a frame of the pumping unit, the motor is fixed on the upper plate 9, and one end of the motor where an output shaft is arranged is connected with the belt. It can be seen that the tension experienced by the motor from the belt is unilateral and unbalanced. In this case, it is difficult to ensure that the upper plate 9 and the lower plate 10 are not slightly misaligned in the conventional supporting structure of the upper plate 9, and once the misalignment occurs, the wear of the belt is inevitably accelerated, which affects the life of the belt. In the present invention, the meshing alignment of the gear section 15 and the rack 12 can effectively ensure the alignment of the upper plate 9 and the lower plate 10, and the above-mentioned dislocation problem is eliminated.
As shown in fig. 1 and 2, the driving mechanism structurally includes a U-shaped frame 8, a sliding rod 7, a fixing sleeve 6, a tension indicating spring 5 and a lead screw 1, wherein two parallel sections of the U-shaped frame 8 are sleeved on cylindrical sections 14 of rollers 11, one end of the sliding rod 7 is fixedly connected with an end portion of the U-shaped frame 8, the other end of the sliding rod is inserted into the fixing sleeve 6 in a sliding manner, the fixing sleeve 6 is fixedly mounted on a frame of the pumping unit, the lead screw 1 is connected with an end portion of the fixing sleeve 6 through threads and extends into the fixing sleeve 6, the tension indicating spring 5 is mounted in the fixing sleeve 6, and the position of the tension indicating spring 5 is located between the end portion of the lead screw 1 and the end portion of. The U-shaped frame 8 pushes the rolling shaft 11 to roll on the lower plate 10 to drive the upper plate 9 to move, and the device has the advantages of ingenious structure, labor-saving operation, reliable support and strong bearing capacity. According to the invention, the tension indicating spring 5 is arranged in the driving mechanism, when the position of the motor is adjusted, the compression degree of the tension indicating spring 5 can be judged by observing the exposed length of the lead screw 1, and then the tension of the belt is roughly judged, so that the belt can be quickly adjusted to the optimal use state.
During specific implementation, a groove or a hole can be formed in the side surface of the fixing sleeve 6, so that the tension indicating spring 5 is exposed, and the compression degree of the tension indicating spring 5 can be judged.
Still be provided with pretension cover 2 in the actuating mechanism, inside pretension cover 2 passed through fixed cover 6 of threaded connection, its position was located the outside of lead screw 1. If the pre-tightening sleeve 2 is not arranged, the screw rod 1 needs to be subjected to elastic resistance exerted by the tension indicating spring 5 in the whole compression stroke of the tension indicating spring 5 during adjustment, so that the operation efficiency is low, and the physical consumption is large. The tension indication spring 5 can be pre-compressed by the aid of the pre-tightening sleeve 2, after pre-compression, the function of the tension indication spring 5 cannot be affected at all, but the stroke of the lead screw 1 is greatly reduced during adjustment, and accordingly operation efficiency is greatly improved. Meanwhile, the tension indicating spring 5 can provide proper buffer force for the motor after being pre-tightened, and mechanical vibration caused by the motor is reduced.
When the types of the pumping units are different, the tension of the belt is different, the compression amount of the tension indicating spring 5 is also different, and the pretensioning sleeve 2 and the fixed sleeve 6 need to be relatively displaced by rotating at the moment, so that the pretensioning amount of the tension indicating spring 5 can be adjusted. In actual operation, during pre-tightening, the stroke of the pre-tightening sleeve 2 may be very long, and meanwhile, the pre-tightening sleeve 2 is ensured to be flexibly adjusted, based on the above requirements, the invention provides a pre-tightening sleeve adjusting method which has a unique structure and is simple:
in the invention, four radial blind holes 4 are processed on the outer side of a pre-tightening sleeve 2, the four radial blind holes 4 are arranged in two rows and two columns along the axial direction and the radial direction of the pre-tightening sleeve 2, the side wall of a fixed sleeve 6 is provided with windows 3 corresponding to the radial blind holes 4, the size of each window 3 can ensure that the four radial blind holes 4 are completely exposed, the windows 3 are at least arranged in two circles along the axial direction, at least three rows are arranged along the circumferential direction, in the axial direction, the minimum distance C between two adjacent windows 3 is not more than the minimum distance C 'between two radial blind holes along the axial direction on the pre-tightening sleeve 2, and in the circumferential direction, the minimum angular distance D between two adjacent windows 3 is not more than the minimum angular distance D' between two radial blind holes 4 along the circumferential direction on the pre-tightening. After meeting the structural requirements, a round rod 20 is inserted into one radial blind hole 4, the round rod 20 is pulled to enable the round rod 20 to reach the extreme position, the other radial blind hole 4 is exposed from the other window 3, then the round rod 20 is pulled down to enable the round rod to be matched with the radial blind hole 4 which is just exposed, the process is repeated, the pre-tightening sleeve 2 can be rotated, and the pre-tightening sleeve 2 can be moved in a longer axial distance range. Meanwhile, after the adjustment is finished, the round rod 20 is left in the radial blind hole 4, and one round rod 20 is inserted into other radial blind holes 4, so that the pre-tightening sleeve 2 can be effectively prevented from rotating uncontrollably, and the anti-loosening effect is achieved. The mode of arranging a plurality of windows 3 along the axial direction is adopted, and compared with the mode of arranging a longer window 3, the structural strength of the fixing sleeve 6 can be fully ensured.
After the position of the motor is adjusted, the upper plate 9 needs to be locked, and in order to ensure the reliability of locking and consider the convenience of locking operation, the invention designs a unique quick locking mechanism.
As shown in fig. 10, the structure of the quick-locking mechanism includes a stud 24, a slider 22, a handle 26 and a lock nut 25, wherein the lower end of the stud 24 is fixedly connected to the lower plate 10, the slider 22 and the handle 26 are both sleeved on the stud 24, the lock nut 25 is connected to the upper end of the stud 24 through a thread, the lower end of the slider 22 is a square structure 21, a slideway 13 matched with the square structure 21 is arranged on the upper plate 9, the slider 22 is matched with the slideway 13 through the square structure 21, the contact surface between the handle 26 and the slider 22 is a spiral surface 17, and the spiral angle of the spiral surface 17 is 360 °. When the handle 26 is pulled in a horizontal plane, the slider 22 is pressed downwards against the upper plate 9 by the screw surface 17, thereby locking the upper plate 9. To prevent the handle 26 from returning after locking, the helix angle of the helix 17 can be made smaller than its friction angle to achieve self-locking.
The tension indicating spring 5 may be a belleville spring.
As a further technical scheme, in the quick lock mechanism, a drum-shaped elastic part 23 is sleeved on the stud 24, the drum-shaped elastic part 23 is of a sleeve structure, the inner surface and the outer surface of the drum-shaped elastic part 23 are both drum-shaped structures with outwards raised middle parts, and an axial slot 19 penetrating through the inner part and the outer part is processed in the middle of the drum-shaped elastic part 23; the drum-shaped elastic member 23 is made of spring steel; the spiral surface 17 is provided with anti-slip teeth 18. The drum-shaped elastic member 23 is an innovative design in the present invention, and has a large elastic modulus and a small volume, and the elastic modulus can be flexibly changed by adjusting the wall thickness. The drum-shaped elastic piece 23 is combined with the anti-skid teeth 18, so that the anti-skid teeth 18 can be smoothly meshed, and enough locking force can be ensured.
As another solution, the shape of the gear section 15 can be changed, and the shape of the matching part of the gear section 15 on the upper plate 9 and the lower plate 10 is changed, so as to further improve the bearing capacity of the present invention. Specifically, in the present invention, the lower side of the upper plate 9 and the upper side of the lower plate 10 are both provided with a strip-shaped groove having an isosceles trapezoid cross section, the rack 12 is located at the bottom of the strip-shaped groove, and the edge of the gear segment 15 is processed with a chamfer 16 matching the inner wall of the strip-shaped groove. By this change, the teeth outside the gear section 15 can no longer bear the pressure, and the pressure is transmitted to the gear section 15 through the matching of the side surface of the strip-shaped groove and the chamfer 16, namely the chamfer 16 takes over the teeth outside the gear section 15 to bear the pressure of the upper plate 9, which is beneficial to improving the normal capability of the upper plate 9 and controlling the matching precision between the upper plate 9 and the roller 11.
As a further technical scheme, two lugs 27 are arranged on the outer side of the fixed sleeve 6, wherein the lug 27 far away from the sliding rod 7 is hinged on the rack, the lug 27 close to the sliding rod 7 is connected on the rack through a bolt 28, and a notch 29 for the sliding rod 7 to pass through is arranged on the side surface of the fixed sleeve 6. The driving mechanism is set to be of a turnover structure, the side face of the fixed sleeve 6 is provided with the notch 29 for the sliding rod 7 to pass through, when the belt is replaced, the driving mechanism rotates 90 degrees anticlockwise, enough space for the sliding rod 7 to move back can be reserved, so that the belt can be easily installed on the belt pulley, and the installation difficulty of the belt is greatly reduced.
In practice, the diameter of the gear section 15 may be made larger than the diameter of the cylindrical section 14, or the diameter of the gear section 15 may be made smaller than the diameter of the cylindrical section 14.
Claims (6)
1. A manually operated motor base adjuster characterized by: the gear type rolling machine comprises an upper plate (9), a lower plate (10), a rolling shaft (11) and a driving mechanism, wherein the upper plate (9) and the lower plate (10) are arranged in parallel up and down, the rolling shaft (11) is clamped between the upper plate (9) and the lower plate (10), a gear section (15) and a cylindrical section (14) are arranged on the rolling shaft (11), and racks (12) meshed with the gear section (15) are arranged on the lower side of the upper plate (9) and the upper side of the lower plate (10);
the driving mechanism comprises a U-shaped frame (8), a sliding rod (7), a fixed sleeve (6), a tension indicating spring (5) and a lead screw (1), wherein two parallel sections of the U-shaped frame (8) are sleeved on cylindrical sections (14) of rolling shafts (11), one end of the sliding rod (7) is fixedly connected with the end part of the U-shaped frame (8), the other end of the sliding rod is inserted into the fixed sleeve (6) in a sliding manner, the fixed sleeve (6) is fixedly installed on a frame of the oil pumping unit, the lead screw (1) is connected with the end part of the fixed sleeve (6) through threads and extends into the fixed sleeve (6), the tension indicating spring (5) is installed in the fixed sleeve (6), and the position of the tension indicating spring (5) is located between the end part of the lead screw (1) and the end part of the sliding rod (7;
the driving mechanism is internally provided with a pre-tightening sleeve (2), the pre-tightening sleeve (2) is connected with the inside of a fixing sleeve (6) through threads, the pre-tightening sleeve (2) is positioned at the outer side of a screw rod (1), four radial blind holes (4) are processed at the outer side of the pre-tightening sleeve (2), the four radial blind holes (4) are arranged in two rows and two columns along the axial direction and the radial direction of the pre-tightening sleeve (2), a window (3) is arranged on the side wall of the fixing sleeve (6) corresponding to the radial blind holes (4), and the size of the window (3) ensures that the four radial blind holes (4) are completely exposed;
the window (3) is at least provided with two circles along the axial direction, at least three rows are arranged along the circumferential direction, in the axial direction, the minimum distance (C) between two adjacent windows (3) is not more than the minimum distance (C ') between two radial blind holes on the pre-tightening sleeve (2) along the axial direction, and in the circumferential direction, the minimum angular distance (D) between two adjacent windows (3) is not more than the minimum angular distance (D') between two radial blind holes (4) on the pre-tightening sleeve (2) along the circumferential direction;
a quick locking mechanism is arranged between the upper plate (9) and the lower plate (10), and the quick locking mechanism structurally comprises a stud (24), a sliding block (22), a handle (26) and a locking nut (25), wherein the lower end of the stud (24) is fixedly connected to the lower plate (10), the slider (22) and the handle (26) are sleeved on the stud (24), the locking nut (25) is connected to the upper end of the stud (24) through threads, the lower end of the slider (22) is of a square structure (21), the upper plate (9) is provided with a slideway (13) matched with the square structure (21), the slide block (22) is matched with the slideway (13) through the square structure (21), the contact surface between the handle (26) and the sliding block (22) is a spiral surface (17), the helix angle of the helical surface (17) is 360 DEG, and the helix angle of the helical surface (17) is smaller than the friction angle.
2. A manually operated motor base adjuster according to claim 1, wherein: the tension indicating spring (5) is a belleville spring.
3. A manually operated motor base adjuster according to claim 1, wherein: in the quick lock mechanism, a drum-shaped elastic part (23) is sleeved on the stud (24), the drum-shaped elastic part (23) is of a sleeve structure, the inner surface and the outer surface of the drum-shaped elastic part (23) are both drum-shaped structures with outwards raised middle parts, and an axial slot (19) penetrating through the inside and the outside is processed in the middle of the drum-shaped elastic part (23);
the drum-shaped elastic member (23) is made of spring steel;
the spiral surface (17) is provided with anti-skid teeth (18).
4. A manually operated motor base adjuster according to claim 1, wherein: the downside of upper plate (9) and the upside of hypoplastron (10) all are provided with the bar groove that the cross section is isosceles trapezoid, rack (12) be located the tank bottom in bar groove, the edge machining of gear section (15) has chamfer (16) with the inner wall matching in bar groove.
5. A manually operated motor base adjuster according to claim 1, wherein: the lower side of the upper plate (9) and the upper side of the lower plate (10) both bear against the cylindrical section (14).
6. A manually operated motor base adjuster according to claim 1, wherein: the outer side of the fixed sleeve (6) is provided with two lugs (27), wherein the lug (27) far away from the sliding rod (7) is hinged on the rack, the lug (27) close to the sliding rod (7) is connected on the rack through a bolt (28), and the side surface of the fixed sleeve (6) is provided with a notch (29) for the sliding rod (7) to pass through.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911345994.XA CN111130261B (en) | 2019-12-24 | 2019-12-24 | Manually-operated motor base adjuster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911345994.XA CN111130261B (en) | 2019-12-24 | 2019-12-24 | Manually-operated motor base adjuster |
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| CN111130261A CN111130261A (en) | 2020-05-08 |
| CN111130261B true CN111130261B (en) | 2020-08-11 |
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| CN116667578B (en) * | 2023-06-27 | 2023-11-10 | 康先达再生科技(滁州)有限公司 | Motor installation locking mechanism |
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| CN209016876U (en) * | 2018-10-29 | 2019-06-21 | 种臣元 | A kind of coal mine roadway power transport motor |
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| CN208589862U (en) * | 2018-06-13 | 2019-03-08 | 临沂大学 | A kind of height-adjustable motor for building |
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