CN215862603U - Platform pitching adjusting device - Google Patents
Platform pitching adjusting device Download PDFInfo
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- CN215862603U CN215862603U CN202121599489.0U CN202121599489U CN215862603U CN 215862603 U CN215862603 U CN 215862603U CN 202121599489 U CN202121599489 U CN 202121599489U CN 215862603 U CN215862603 U CN 215862603U
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Abstract
The utility model provides a platform pitching adjusting device, which relates to the technical field of pitching adjusting devices, and is used for adjusting the pitching angle of a platform, and the platform pitching adjusting device comprises: the worm gear type worm wheel comprises a shell, a worm, a first bearing, a mounting hole, a worm gear part, a second bearing, a third bearing, a threaded hole, a screw rod and a hand wheel; because the lifter imbeds in the threaded hole of worm wheel part, consequently when worm wheel part rotated, the lifter will reciprocate along the axis of worm wheel part to realize that the lifter drives the bracing piece and reciprocate, and make bracing piece and platform contact, and then realize that the bracing piece drives the platform and reciprocate. Through being mutually perpendicular with bracing piece and lifter to the area of contact of increase bracing piece and lifter, thereby promote the stability that the platform reciprocated. By adopting the structure, the self-locking performance of the product is improved and the transmission of the product is more stable by the transmission of the worm gear and the worm and the meshing characteristic of the worm gear.
Description
Technical Field
The utility model relates to the technical field of pitching adjusting devices, in particular to a platform pitching adjusting device.
Background
At present, in the related art, one end of the platform is rotatably connected to the supporting member, and the adjusting device is supported at the other end of the platform, so that the pitching motion of the platform is realized by the up-and-down movement of the telescopic part in the adjusting device. The existing adjusting device realizes the pitching action of the platform by the up-and-down movement of the universal screw rod, and the output of the universal screw rod is unstable and has poor self-locking performance, so that the use experience of products is reduced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the utility model provides a platform pitching adjusting device.
In view of the above, the present invention provides a platform pitch adjustment device, where the platform pitch adjustment device is used to adjust a platform pitch angle, and the platform pitch adjustment device includes: the worm gear type worm wheel comprises a shell, a worm, a first bearing, a mounting hole, a worm gear part, a second bearing, a third bearing, a threaded hole, a screw rod and a hand wheel; the shell is positioned below the platform; the outer wall of the worm is provided with first spiral teeth, and the worm is embedded into the shell; the two first bearings are respectively sleeved at two ends of the worm and are arranged in the shell; the mounting hole is arranged at the top of the shell and is positioned below the platform; the outer wall of the worm wheel part is provided with second spiral teeth, the second spiral teeth on the worm wheel part are meshed with the first spiral teeth of the worm, the worm wheel part is embedded into the shell after passing through the mounting hole, and the axis of the worm wheel part is vertical to the axis of the worm; the second bearing is sleeved at one end of the worm gear part, which is far away from the platform, and the second bearing is arranged in the shell; the third bearing is sleeved at one end of the worm gear part close to the platform and is arranged in the mounting hole; the threaded hole penetrates through the worm wheel part along the axis of the worm wheel part, and a first internal thread is arranged in the threaded hole; the screw comprises a supporting rod and a lifting rod, one end of the lifting rod, which is close to the platform, is connected with the middle part of the supporting rod, the lifting rod is vertical to the supporting rod, and the supporting rod is in contact with the platform; a first external thread is arranged on the outer wall of the lifting rod, and one end of the lifting rod, which is far away from the platform, is embedded into the threaded hole; the hand wheel is positioned on the outer side of the shell and is connected with the worm; wherein, the first internal thread of screw hole and the first external screw thread looks adaptation of lifter.
In the technical scheme, firstly, two first bearings are respectively sleeved at two ends of a worm and are arranged in a shell to realize the rotary connection of the worm and the shell; secondly, the worm wheel part is embedded into the shell, and the second spiral teeth on the worm wheel part are meshed with the first spiral teeth on the worm, so that when the worm rotates, the worm drives the worm wheel part to rotate; thirdly, the second bearing is sleeved at one end of the worm gear part, which is far away from the platform, the third bearing is sleeved at one end of the worm gear part, which is close to the platform, the second bearing is installed in the shell, and the third bearing is installed in the installation hole, so that the worm gear part is rotatably connected with the shell; thirdly, one end of the lifting rod, which is far away from the platform, is embedded into a threaded hole which is arranged in the worm gear part in a penetrating mode, and the first internal thread of the outer wall of the lifting rod is matched with the first external thread in the threaded hole, so that the lifting rod can move up and down along the axis of the worm gear part when the worm gear part rotates forwards or reversely; thirdly, connecting the middle part of the supporting rod with one end of the lifting rod close to the platform, and enabling the lifting rod to be perpendicular to the supporting rod, so that a screw rod consisting of the supporting rod and the lifting rod is in a T shape, the lifting rod drives the supporting rod to move up and down, and meanwhile, the supporting rod is in contact with the platform, so that the supporting rod is in multi-point contact with the platform; and thirdly, the hand wheel is positioned on the outer side of the shell and is connected with the worm, so that the worm is driven to rotate through the hand wheel, and the operability of the product is improved. The worm is driven to rotate through the hand wheel, and the first spiral teeth on the worm are meshed with the second spiral teeth of the worm wheel part, so that the worm drives the worm wheel part to rotate; because the lifter imbeds in the threaded hole of worm wheel part, consequently when worm wheel part rotated, the lifter will reciprocate along the axis of worm wheel part to realize that the lifter drives the bracing piece and reciprocate, and make bracing piece and platform contact, and then realize that the bracing piece drives the platform and reciprocate, and rotate with the one end that the platform deviates from the bracing piece and be connected with external part, and then realize the action of platform every single move. Through being mutually perpendicular with bracing piece and lifter to the area of contact of increase bracing piece and lifter, thereby promote the stability that the platform reciprocated. By adopting the structure, the self-locking performance of the product is improved by the transmission of the worm gear and the worm and the gear, and the transmission of the product is more stable, so that the precision of the product is improved.
In addition, the platform pitch adjusting device in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, preferably, the platform pitch adjustment device further includes: a fourth bearing; the two fourth bearings are sleeved at the two ends of the supporting rod, and the outer walls of the two fourth bearings are in contact with the platform.
In this technical scheme, establish the both ends at the bracing piece through establishing two fourth bearing cover to make the outer wall and the platform of two fourth bearings contact, in order to realize bracing piece and platform rotation contact, in order to realize when the bracing piece drives the platform and reciprocates, platform and bracing piece remain the contact throughout, avoid appearing the clearance between platform and the bracing piece, in order to realize adjusting the precision of platform every single move angle.
In the above technical solution, preferably, the platform pitch adjustment device further includes: a sleeve portion and a retainer ring for a shaft; the shaft sleeve part is sleeved on the outer side of the supporting rod and is positioned between the two fourth bearings, and the shaft sleeve part is simultaneously attached to the two fourth bearings; the two shaft check rings are sleeved on the outer side of the supporting rod and are respectively attached to one side face, deviating from the shaft sleeve part, of the two fourth bearings.
In this technical scheme, through establishing the axle sleeve portion cover in the outside of bracing piece, make axle sleeve portion be located between two fourth bearings to laminate axle sleeve portion simultaneously with two fourth bearings mutually, simultaneously, establish two for the axle retaining ring covers in the outside of bracing piece, and make two for the axle retaining ring laminate with a side that two fourth bearings deviate from axle sleeve portion respectively mutually, fix two fourth bearings on the bracing piece in order to realize, in order to avoid two fourth bearings to take place the displacement.
Specifically, axle sleeve portion and bracing piece formula structure as an organic whole, axle sleeve portion and bracing piece are formed through lathe work.
In the above technical solution, preferably, the platform pitch adjustment device further includes: a first positioning portion and a second positioning portion; the first positioning part is sleeved on the outer side of the worm gear part, and the first positioning part is attached to one side surface, close to the platform, of the second bearing; the second positioning part is sleeved on the outer side of the worm gear part, and the second positioning part is attached to one side face, deviating from the platform, of the third bearing.
In this technical scheme, through establishing first location cover in the outside of worm wheel part to laminating first location portion and a side that the second bearing is close to the platform mutually, simultaneously, laminating second location portion and a side that the third bearing deviates from the platform mutually, in order to avoid second bearing and third bearing relative movement.
Specifically, the first positioning portion, the second positioning portion and the worm wheel part are of an integrated structure.
In the above technical solution, preferably, the platform pitch adjustment device further includes: a second external thread and a fixing nut; the second external thread is arranged on the outer wall of one end of the worm gear part close to the third bearing; the fixing nut comprises a locking part and a supporting part, the locking part is connected with the supporting part, a second internal thread is arranged on the inner wall of the locking part, and the locking part is sleeved on the outer wall of one end, close to the third bearing, of the worm gear part; the inner wall of the supporting part is provided with a first internal thread, and the supporting part is sleeved on the outer side of the lifting rod; wherein, second internal thread on the locking portion inner wall and the second external thread looks adaptation on the worm gear part outer wall, first internal thread on the supporting part inner wall and the first external thread looks adaptation on the bracing piece outer wall.
In the technical scheme, the locking part of the fixing nut is sleeved on the outer wall of one end, close to the third bearing, of the worm gear part, and the second internal thread on the inner wall of the locking part is matched with the second external thread on the outer wall of the worm gear part, so that the locking part is in threaded connection with the worm gear part, and the fixing nut is fixed on the worm gear part; set up first internal thread on through the inner wall with the supporting part to establish the outside at the lifter with the supporting part cover, support the lifter with realizing that the supporting part, thereby take place the skew when avoiding the lifter to reciprocate, promote the operation precision of product.
In the above technical solution, preferably, the platform pitch adjustment device further includes: fastening screws; at least two fastening screws penetrate through the locking part, and the fastening screws are attached to the worm wheel component.
In this technical scheme, pass locking portion through with at least two fastening screw to make fastening screw and worm wheel unit laminate mutually, take place relative rotation with the worm wheel unit with avoiding fixation nut, thereby promote the operation precision of product.
In the above technical solution, preferably, the platform pitch adjustment device further includes: an end cap; the end cover is covered on the mounting hole, the end cover is wound on the outer side of the worm wheel component, and the end cover is attached to the outer wall of the third bearing; wherein, there is the clearance between end cover and the worm wheel unit.
In this technical scheme, through establishing the end cover lid on the mounting hole, with the end cover around establishing in the outside of worm gear part to laminate the outer wall of end cover and third bearing mutually, avoid the third bearing to take place the displacement, thereby promote the stability of third bearing.
In the above technical solution, preferably, the platform pitch adjustment device further includes: a keyway and a limit screw; the key groove is arranged on the outer wall of the lifting rod and is sunken towards the central line of the lifting rod; the limit screw penetrates through the end cover and is embedded into the key groove.
In this technical scheme, when the worm wheel part drives the lifter and reciprocates, the lifter also will take place to rotate when reciprocating, through setting up the keyway on the outer wall of lifter to make stop screw pass the end cover after, make stop screw embedding keyway in, in order to avoid the lifter to take place to rotate, make the lifter only reciprocate, thereby improve the accuracy that the control lifter removed, further promote the precision of product.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 illustrates a front view of a platform pitch adjustment apparatus according to one embodiment of the present invention;
FIG. 2 shows a partial enlarged view at A of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 shows a schematic structural view of a screw according to one embodiment of the present invention;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
10 platform, 12 shell, 14 worm, 15 first spiral tooth, 16 first bearing, 18 mounting hole, 20 worm wheel component, 22 second spiral tooth, 24 second bearing, 26 third bearing, 28 screw rod, 282 support rod, 284 lifting rod, 30 hand wheel, 32 fourth bearing, 34 shaft sleeve part, 36 shaft retainer ring, 38 first positioning part, 40 second positioning part, 42 fixing nut, 422 locking part, 424 support part, 43 fastening screw, 44 end cover, 46 key groove and 48 limiting screw.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The platform pitch adjustment mechanism according to some embodiments of the present invention is described below with reference to fig. 1-4.
In an embodiment of the present invention, as shown in fig. 1 to 4, the present invention provides a platform pitch adjustment apparatus for adjusting a pitch angle of a platform 10, the platform pitch adjustment apparatus including: the worm gear comprises a shell 12, a worm 14, a first bearing 16, a mounting hole 18, a worm wheel part 20, a second bearing 24, a third bearing 26, a threaded hole, a screw 28 and a hand wheel 30; the housing 12 is located below the platform 10; the outer wall of the worm 14 is provided with a first spiral tooth 15, and the worm 14 is embedded in the shell 12; the two first bearings 16 are respectively sleeved at two ends of the worm 14, and the first bearings 16 are installed in the shell 12; mounting holes 18 are provided at the top of the housing 12, and the mounting holes 18 are located below the platform 10; the outer wall of the worm wheel part 20 is provided with a second spiral tooth 22, the second spiral tooth 22 on the worm wheel part 20 is meshed with the first spiral tooth 15 of the worm 14, after the worm wheel part 20 passes through the mounting hole 18, the worm wheel part 20 is embedded into the shell 12, and the axis of the worm wheel part 20 is vertical to the axis of the worm 14; the second bearing 24 is sleeved at one end of the worm gear part 20 departing from the platform 10, and the second bearing 24 is arranged in the shell 12; the third bearing 26 is sleeved at one end of the worm gear part 20 close to the platform 10, and the third bearing 26 is arranged in the mounting hole 18; the threaded hole penetrates through the worm wheel part 20 along the axis of the worm wheel part 20, and a first internal thread is arranged in the threaded hole; the screw 28 comprises a support rod 282 and a lifting rod 284, wherein one end of the lifting rod 284 close to the platform 10 is connected with the middle part of the support rod 282, the lifting rod 284 is perpendicular to the support rod 282, and the support rod 282 is in contact with the platform 10; a first external thread is arranged on the outer wall of the lifting rod 284, and one end of the lifting rod 284, which is far away from the platform 10, is embedded into the threaded hole; the hand wheel 30 is positioned on the outer side of the shell 12, and the hand wheel 30 is connected with the worm 14; wherein the first internal thread of the threaded hole is matched with the first external thread of the lifting rod 284.
In this embodiment, first, the two first bearings 16 are respectively sleeved at two ends of the worm 14, and the two first bearings 16 are installed in the housing 12, so as to realize the rotational connection between the worm 14 and the housing 12; secondly, the worm 14 drives the worm wheel part 20 to rotate when the worm 14 rotates by embedding the worm wheel part 20 into the shell 12 and meshing the second spiral teeth 22 on the worm wheel part 20 with the first spiral teeth 15 on the worm 14; thirdly, the second bearing 24 is sleeved at one end of the worm gear part 20, which is far away from the platform 10, the third bearing 26 is sleeved at one end of the worm gear part 20, which is close to the platform 10, the second bearing 24 is installed in the shell 12, and the third bearing 26 is installed in the installation hole 18, so that the worm gear part 20 is rotatably connected with the shell 12; thirdly, one end of the lifting rod 284, which is far away from the platform 10, is embedded into a threaded hole which is arranged in the worm gear part 20 in a penetrating manner, and the first internal thread of the outer wall of the lifting rod 284 is matched with the first external thread in the threaded hole, so that the lifting rod 284 moves up and down along the axis of the worm gear part 20 when the worm gear part 20 rotates forwards or reversely; thirdly, the middle part of the supporting rod 282 is connected with one end of the lifting rod 284 close to the platform 10, and the lifting rod 284 is perpendicular to the supporting rod 282, so that the screw 28 consisting of the supporting rod 282 and the lifting rod 284 is in a T shape, the lifting rod 284 drives the supporting rod 282 to move up and down, and meanwhile, the supporting rod 282 is in contact with the platform 10, so that the supporting rod 282 is in multi-point contact with the platform 10; thirdly, the hand wheel 30 is located on the outer side of the shell 12, and the hand wheel 30 is connected with the worm 14, so that the worm 14 is driven to rotate through the hand wheel 30, and the operability of the product is improved. The worm 14 is driven to rotate through the hand wheel 30, and the first spiral teeth 15 on the worm 14 are meshed with the second spiral teeth 22 of the worm wheel part 20, so that the worm 14 drives the worm wheel part 20 to rotate; because the lifting rod 284 is embedded in the threaded hole of the worm gear 20, when the worm gear 20 rotates, the lifting rod 284 moves up and down along the axis of the worm gear 20, so that the lifting rod 284 drives the supporting rod 282 to move up and down, the supporting rod 282 is in contact with the platform 10, the supporting rod 282 drives the platform 10 to move up and down, one end of the platform 10, which is far away from the supporting rod 282, is rotatably connected with an external part, and the platform 10 tilts. The support bar 282 is perpendicular to the lift bar 284 to increase the contact area between the support bar 282 and the lift bar 284, thereby improving the stability of the platform 10 in moving up and down. By adopting the structure, the self-locking performance of the product is improved by the transmission of the worm gear 14 and the meshing characteristic of the worm gear 14, and the transmission of the product is more stable, so that the precision of the product is improved.
In one embodiment of the present invention, preferably, as shown in fig. 4, the platform pitch adjustment apparatus further includes: a fourth bearing 32; the two fourth bearings 32 are disposed at two ends of the supporting rod 282, and the outer walls of the two fourth bearings 32 contact the platform 10.
In this embodiment, the two fourth bearings 32 are sleeved at the two ends of the supporting rod 282, and the outer walls of the two fourth bearings 32 are in contact with the platform 10, so that the supporting rod 282 is in rotational contact with the platform 10, when the supporting rod 282 drives the platform 10 to move up and down, the platform 10 is always in contact with the supporting rod 282, a gap between the platform 10 and the supporting rod 282 is avoided, and the precision adjustment of the pitch angle of the platform 10 is realized.
In one embodiment of the present invention, preferably, as shown in fig. 4, the platform pitch adjustment apparatus further includes: a boss portion 34 and a shaft retainer 36; the shaft sleeve part 34 is sleeved on the outer side of the support rod 282, the shaft sleeve part 34 is positioned between the two fourth bearings 32, and the shaft sleeve part 34 is simultaneously attached to the two fourth bearings 32; the two shaft retainers 36 are sleeved on the outer side of the support rod 282, and the two shaft retainers 36 are respectively attached to one side surface of the two fourth bearings 32 away from the shaft sleeve portion 34.
In this embodiment, the shaft sleeve portion 34 is sleeved on the outer side of the supporting rod 282, so that the shaft sleeve portion 34 is located between the two fourth bearings 32, the shaft sleeve portion 34 is simultaneously attached to the two fourth bearings 32, meanwhile, the two shaft retaining rings 36 are sleeved on the outer side of the supporting rod 282, and the two shaft retaining rings 36 are respectively attached to one side surface of the two fourth bearings 32 away from the shaft sleeve portion 34, so that the two fourth bearings 32 are fixed on the supporting rod 282, and the two fourth bearings 32 are prevented from being displaced.
Specifically, the boss portion 34 and the support rod 282 are of an integral structure, and the boss portion 34 and the support rod 282 are formed by turning.
In one embodiment of the present invention, preferably, as shown in fig. 1 to 3, the platform pitch adjustment apparatus further includes: a first positioning portion 38 and a second positioning portion 40; the first positioning portion 38 is sleeved on the outer side of the worm gear member 20, and the first positioning portion 38 is attached to a side surface of the second bearing 24 close to the platform 10; the second positioning portion 40 is sleeved on the outer side of the worm gear 20, and the second positioning portion 40 is attached to a side surface of the third bearing 26 departing from the platform 10.
In this embodiment, the first positioning portion is sleeved on the outer side of the worm gear member 20, and the first positioning portion 38 is attached to a side surface of the second bearing 24 close to the platform 10, and the second positioning portion 40 is attached to a side surface of the third bearing 26 away from the platform 10, so as to prevent the second bearing 24 and the third bearing 26 from moving relatively.
Specifically, the first positioning portion 38, the second positioning portion 40, and the worm wheel member 20 are of an integral structure.
In one embodiment of the present invention, preferably, as shown in fig. 1 to 3, the platform pitch adjustment apparatus further includes: a second external thread and a fixing nut 42; the second external thread is provided on the outer wall of the worm wheel member 20 at the end near the third bearing 26; the fixing nut 42 comprises a locking part 422 and a supporting part 424, the locking part 422 is connected with the supporting part 424, a second internal thread is arranged on the inner wall of the locking part 422, and the locking part 422 is sleeved on the outer wall of the worm gear part 20 close to one end of the third bearing 26; the inner wall of the supporting portion 424 is provided with a first internal thread, and the supporting portion 424 is sleeved on the outer side of the lifting rod 284; wherein, the second internal thread on the inner wall of the locking part 422 is matched with the second external thread on the outer wall of the worm wheel part 20, and the first internal thread on the inner wall of the supporting part 424 is matched with the first external thread on the outer wall of the supporting rod 282.
In this embodiment, the fixing nut 42 is fixed on the worm wheel member 20 by fitting the locking portion 422 of the fixing nut 42 on the outer wall of the worm wheel member 20 near the end of the third bearing 26, and since the second internal thread on the inner wall of the locking portion 422 is matched with the second external thread on the outer wall of the worm wheel member 20, the locking portion 422 is screwed with the worm wheel member 20; set up first internal thread on through the inner wall with supporting part 424 to establish the outside at lifter 284 with supporting part 424 cover, in order to realize that supporting part 424 supports lifter 284, thereby avoid lifter 284 to take place the skew when reciprocating, promote the operation precision of product.
In one embodiment of the present invention, preferably, as shown in fig. 1 to 3, the platform pitch adjustment apparatus further includes: a fastening screw 43; at least two fastening screws 43 pass through the locking portion 422, and the fastening screws 43 are attached to the worm wheel member 20.
In this embodiment, at least two fastening screws 43 are inserted through the locking portion 422, and the fastening screws 43 are engaged with the worm wheel assembly 20 to prevent the fixing nut 42 and the worm wheel assembly 20 from rotating relative to each other, thereby improving the operation accuracy of the product.
In one embodiment of the present invention, preferably, as shown in fig. 1 to 3, the platform pitch adjustment apparatus further includes: an end cap 44; the end cover 44 is covered on the mounting hole 18, the end cover 44 is wound on the outer side of the worm gear part 20, and the end cover 44 is attached to the outer wall of the third bearing 26; wherein, there is a gap between the end cover 44 and the worm wheel part 20.
In this embodiment, the end cover 44 is disposed on the mounting hole 18, the end cover 44 is disposed around the outer side of the worm wheel member 20, and the end cover 44 is attached to the outer wall of the third bearing 26, so that the third bearing 26 is prevented from being displaced, thereby improving the stability of the third bearing 26.
In one embodiment of the present invention, preferably, as shown in fig. 1 to 3, the platform pitch adjustment apparatus further includes: a keyway 46 and a limit screw 48; the key groove 46 is provided on the outer wall of the lifter 284, and the key groove 46 is recessed toward the center line of the lifter 284; a stop screw 48 passes through end cap 44 and stop screw 48 is embedded in keyway 46.
In this embodiment, when the worm wheel 20 drives the lifting rod 284 to move up and down, the lifting rod 284 rotates while moving up and down, and the key slot 46 is disposed on the outer wall of the lifting rod 284, and after the limit screw 48 passes through the end cap 44, the limit screw 48 is embedded into the key slot 46, so as to prevent the lifting rod 284 from rotating, so that the lifting rod 284 only moves up and down, thereby improving the accuracy of controlling the movement of the lifting rod 284, and further improving the precision of the product.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A platform pitch adjustment device for adjusting a platform pitch angle, the platform pitch adjustment device comprising:
a housing located below the platform;
the outer wall of the worm is provided with first spiral teeth, and the worm is embedded into the shell;
the two first bearings are respectively sleeved at two ends of the worm and are arranged in the shell;
the mounting hole is arranged at the top of the shell and is positioned below the platform;
the outer wall of the worm wheel part is provided with second spiral teeth, the second spiral teeth on the worm wheel part are meshed with the first spiral teeth of the worm, the worm wheel part is embedded into the shell after passing through the mounting hole, and the axis of the worm wheel part is perpendicular to the axis of the worm;
the second bearing is sleeved at one end, away from the platform, of the worm gear part, and the second bearing is installed in the shell;
the third bearing is sleeved at one end, close to the platform, of the worm gear part, and the third bearing is installed in the shell;
the threaded hole penetrates through the worm wheel part along the axis of the worm wheel part, and a first internal thread is arranged in the threaded hole;
the screw comprises a supporting rod and a lifting rod, one end of the lifting rod, which is close to the platform, is connected with the middle part of the supporting rod, the lifting rod is perpendicular to the supporting rod, and the supporting rod is in contact with the platform;
a first external thread is arranged on the outer wall of the lifting rod, and one end of the lifting rod, which is far away from the platform, is embedded into the threaded hole;
the hand wheel is positioned on the outer side of the shell and is connected with the worm;
the first internal thread of the threaded hole is matched with the first external thread of the lifting rod.
2. The platform pitch adjustment apparatus of claim 1, further comprising:
and the fourth bearing is sleeved at the two ends of the supporting rod, and is two, the outer wall of the fourth bearing is in contact with the platform.
3. The platform pitch adjustment apparatus of claim 2, further comprising:
the shaft sleeve part is sleeved on the outer side of the supporting rod and is positioned between the two fourth bearings, and the shaft sleeve part is simultaneously attached to the two fourth bearings;
the shaft retaining ring is sleeved on the outer side of the supporting rod, and the two shaft retaining rings are respectively attached to one side face of the shaft sleeve part, which deviates from the fourth bearing.
4. The platform pitch adjustment apparatus of claim 1, further comprising:
the first positioning part is sleeved on the outer side of the worm gear part, and the first positioning part is attached to one side surface, close to the platform, of the second bearing;
and the second positioning part is sleeved on the outer side of the worm gear part, and the second positioning part is attached to one side surface of the platform, which deviates from the third bearing.
5. The platform pitch adjustment apparatus of claim 4, further comprising:
a second external thread provided on an outer wall of the worm wheel member at an end thereof adjacent to the third bearing;
the fixing nut comprises a locking part and a supporting part, the locking part is connected with the supporting part, a second internal thread is arranged on the inner wall of the locking part, and the locking part is sleeved on the outer wall of one end, close to the third bearing, of the worm gear part;
the inner wall of the supporting part is provided with the first internal thread, and the supporting part is sleeved on the outer side of the lifting rod;
the second internal thread on the inner wall of the locking part is matched with the second external thread on the outer wall of the worm gear part, and the first internal thread on the inner wall of the supporting part is matched with the first external thread on the outer wall of the supporting rod.
6. The platform pitch adjustment apparatus of claim 5, further comprising:
and at least two fastening screws penetrate through the locking part and are attached to the worm gear part.
7. The platform pitch adjustment apparatus of claim 6, further comprising:
the end cover is covered on the mounting hole, wound on the outer side of the worm gear part and attached to the outer wall of the third bearing;
wherein a gap is formed between the end cover and the worm gear part.
8. The platform pitch adjustment apparatus of claim 7, further comprising:
the key groove is formed in the outer wall of the lifting rod and is sunken towards the center line of the lifting rod;
and the limiting screw penetrates through the end cover and is embedded into the key groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121599489.0U CN215862603U (en) | 2021-07-14 | 2021-07-14 | Platform pitching adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121599489.0U CN215862603U (en) | 2021-07-14 | 2021-07-14 | Platform pitching adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215862603U true CN215862603U (en) | 2022-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121599489.0U Active CN215862603U (en) | 2021-07-14 | 2021-07-14 | Platform pitching adjusting device |
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| Country | Link |
|---|---|
| CN (1) | CN215862603U (en) |
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2021
- 2021-07-14 CN CN202121599489.0U patent/CN215862603U/en active Active
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