CN213164019U - Mounting seat, twist subassembly in advance and twist device in advance - Google Patents
Mounting seat, twist subassembly in advance and twist device in advance Download PDFInfo
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- CN213164019U CN213164019U CN202021404257.0U CN202021404257U CN213164019U CN 213164019 U CN213164019 U CN 213164019U CN 202021404257 U CN202021404257 U CN 202021404257U CN 213164019 U CN213164019 U CN 213164019U
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Abstract
The utility model relates to a mount pad, prewirl subassembly and prewirl device, the mount pad includes the pedestal, the pedestal is provided with the about hole that is used for installing the bearing, the both sides of pedestal are respectively provided with first about portion symmetrically, first about portion is used for constituting the sliding pair with the second about portion on the mounting bracket; the pre-screwing assembly comprises a rotating shaft and at least one mounting seat, and the rotating shaft is mounted on the mounting seat through a bearing; the pre-screwing device comprises a mounting frame and the pre-screwing assembly; the utility model discloses, compact structure, reasonable in design, the subassembly is twisted in advance in the installation of not only being convenient for, and the position of twisting the subassembly in advance is adjustable moreover to adjust the position of pivot according to actual demand, be applicable to the wheel pair protecgulum of assembling different models.
Description
Technical Field
The utility model relates to a rail transit equipment technical field, concretely relates to mount pad, twist the subassembly in advance and twist the device in advance.
Background
In the technical field of rail transit equipment, a wheel pair is an important part which is contacted with a steel rail on a locomotive, and in the prior art, the wheel pair is usually required to be matched with an axle box device (called an axle box for short) for installation, because the axle box device is a part which is sleeved on a shaft neck and is connected with the wheel pair and a bogie or a two-axle locomotive body, the axle box device is mainly used for transferring the weight and load of the locomotive body to the wheel pair, lubricating the shaft neck and reducing the running resistance; the conventional axle box device generally comprises a front cover assembly, wherein the front cover assembly comprises a front cover (or called as an end cover and a pressure plate), a nameplate, a stop piece and a plurality of bolts, through holes are respectively formed in corresponding positions of the front cover, the nameplate and the stop piece, and the bolts are respectively sleeved in the through holes, as shown in fig. 1; correspondingly, threaded holes are formed in the shaft ends of the wheel sets (the number of the threaded holes is usually three or more, the threaded holes are uniformly formed in the circumferential direction of a base circle, correspondingly, through holes in the front cover are uniformly formed in the circumferential direction of a base circle, the diameters of the two base circles are the same, and as shown in the attached drawing 1), and the bolts are sleeved in the through holes respectively and are used for connecting the threaded holes in the shaft ends of the wheel sets; the conventional process usually adopts manual operation to correspondingly screw bolts in the front cover assembly into threaded holes, so as to realize the assembly of the front cover assembly and the wheel pair.
In the prior art, manual assembly is adopted, which has the problems of low assembly efficiency, high labor cost and the like, and with the development of the technology, an automatic wheel set front cover assembly system based on machine vision is made possible, in the automatic wheel set front cover assembly system, rotating shafts (one end of each rotating shaft is provided with a torsion part which is matched with the head of a bolt) which are matched with the bolt and used for driving the bolt to rotate are generally respectively arranged at positions corresponding to each bolt, the rotating shafts can drive the bolt to rotate under the driving of a driving motor, however, in the prior art, the wheel sets of different types generally have different sizes, so that the distances between the threaded holes and the central axis of the wheel set are different (namely, the diameters of base circles are different), correspondingly, the base circle where each through hole is arranged on the front cover is also correspondingly changed, and if the rotating shafts are fixedly arranged, the wheel set front cover is only suitable for assembling a wheel set front cover of one type, the problem of poor universality exists, and the rotating shaft in the prior art is not convenient to adjust the position generally, so that the problem needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to improve exist not enough among the prior art, provide a compact structure, reasonable in design's mount pad, not only be convenient for install the pivot, the position of pivot is adjustable moreover to adjust the position of pivot according to the actual demand, be applicable to the wheel pair protecgulum of assembling different models.
The utility model adopts the technical proposal that:
for the installation and the adjustable problem in position of solving the pivot, provide a mount pad, including the pedestal, the pedestal is provided with the about hole that is used for installing bearing and/or pivot, the both sides of pedestal symmetry respectively are provided with first about portion, first about portion is used for constituting the sliding pair with the about portion of second on the mounting bracket. In the scheme, the outer ring of the bearing can be fixed by arranging the constraint hole, and the inner ring of the bearing can be fixed on the rotating shaft, so that the rotating shaft can be fixed on the mounting seat and can rotate relative to the mounting seat; in addition, in this scheme, still be provided with on the mount pad and be used for the first about portion with mounting bracket looks adaptation, first about portion can cooperate with the about portion of second on the mounting bracket to constitute the sliding pair, make this mount pad can be through the about portion movable mounting of first about portion in the mounting bracket, and when the position of mount pad needs to be adjusted, the mount pad can move for the mounting bracket through the cooperation of the about portion of first about portion with the second to effectively adjust the position of mount pad, even make the position of pivot adjustable, so that be applicable to the wheel pair protecgulum of assembling different models.
For convenience of processing and molding, preferably, the first constraint part is a chute arranged on the side surface of the seat body,
or, the first constraint part is a strip-shaped bulge arranged on the side surface of the seat body. When first about portion for set up in during the spout of pedestal side, the about portion of second is protruding for setting up in the strip of mounting bracket, spout and the protruding looks adaptation of strip to constitute and move vice, thereby can utilize the protruding restraint of realizing the mount pad of strip, and the mount pad also can remove along the bellied length direction of strip, with adjusting position, and in the same way, when first about portion for set up in during the strip of pedestal side is protruding, the about portion of second also can realize the same technological effect for setting up in the spout of mounting bracket.
Preferably, the base body is of a square structure, and the first constraining portions are respectively disposed on two parallel side surfaces of the base body. Simple structure, convenient molding and installation.
In order to solve the problems of installation and position adjustability of the rotating shaft, the pre-screwing assembly comprises the rotating shaft and at least one installation seat, wherein the rotating shaft is installed on the installation seat through a bearing. When the rotating shaft is installed on the installation seat through the bearing, the rotating shaft can only rotate relative to the installation seat and cannot move relative to the installation seat, and when the installation seat is installed on the installation seat through the first constraint part, the position of the installation seat can be adjusted, so that the position of the rotating shaft can be adjusted.
In order to facilitate transmission, the rotating shaft is further provided with a transmission part for transmission, and the transmission part is a gear or a belt wheel. So that the driving motor can drive the rotating shaft to rotate through gear transmission or belt transmission, and the bolt is pre-screwed.
In order to realize the function of pre-screwing the bolt, furthermore, one end of the rotating shaft is configured with a twisting part matched with the head part of the bolt,
or the bolt further comprises a sleeve, one end of the sleeve is detachably fixed on the rotating shaft, and the other end of the sleeve is provided with a torsion part matched with the head of the bolt. Through setting up the portion of twisting, can be convenient with the head looks adaptation of front shroud subassembly in the bolt to utilize the rotation drive bolt of pivot to rotate, thereby reach the purpose of automatic assembly bolt.
In order to be convenient to be matched with the head of the bolt, the torsion part is preferably a hexagonal hole, a dodecagonal hole, a hexagonal prism, a dodecagonal prism, a linear protrusion or a cross-shaped protrusion matched with the head of the bolt. So that the bolt of adaptation different models, the commonality is better.
In order to facilitate the installation of the bearing, preferably, the rotating shaft is a stepped shaft. So as to position and mount the bearing.
The utility model provides a twist device in advance, includes mounting bracket and at least three twist the subassembly in advance, the mounting bracket is provided with at least three strip draw-in groove, the radial distribution of circumferencial direction is followed respectively to the strip draw-in groove, both sides in the strip draw-in groove set up in have with the about portion of second of first restraint looks adaptation, the mount pad set up respectively in the strip draw-in groove, first about portion and the about portion of second constitute the sliding pair, and each the pivot is respectively along the circumferencial direction evenly distributed of same circle. In this scheme, through set up a plurality of strip draw-in grooves with twist subassembly looks adaptation in advance on the mounting bracket for respectively twist the subassembly in advance and can install respectively in each strip draw-in groove department, and make first about portion and the about portion constitution sliding pair of second, utilize the sliding pair can effectively adjust respectively in advance the position of twisting the subassembly, thereby effectively solve the installation of twisting the subassembly in advance and the adjustable problem of position.
Furthermore, the device also comprises a driving motor, wherein the driving motor is connected with each rotating shaft through a transmission part and is used for driving each rotating shaft to rotate. The transmission components are connected with the rotating shafts and driven by the same driving motor, so that the problem of driving the rotating shafts to rotate synchronously can be effectively solved.
In order to solve the locking problem of the pre-screwing assembly, the pre-screwing assembly further comprises a locking mechanism, the locking mechanism comprises a locking bolt and a plurality of locking holes arranged on the mounting rack, the locking holes correspond to the strip-shaped clamping grooves and are distributed along the length direction of the strip-shaped clamping grooves,
the lockhole is provided with an internal thread matched with the locking bolt, and the locking bolt compresses the base body through the lockhole. Therefore, the mounting seat can be effectively locked, and the aim of locking the pre-screwing assembly is fulfilled.
Compared with the prior art, the utility model provides a pair of mount pad, twist subassembly and twist device in advance, compact structure, reasonable in design, the installation pivot of not only being convenient for, the position of pivot is adjustable moreover to in the practical application process, can adjust the position of pivot according to actual demand, so that alright with be applicable to the wheel pair protecgulum of assembling different models, the commonality is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a front cover assembly.
Fig. 2 is a schematic structural diagram of a mounting base provided in embodiment 1 of the present invention.
Fig. 3 is a cross-sectional view of fig. 2.
Fig. 4 is a front view of a pre-screwing assembly provided in embodiment 2 of the present invention.
Fig. 5 is a schematic three-dimensional structure diagram of a pre-screwing assembly provided in embodiment 3 of the present invention.
Fig. 6 is a schematic structural diagram of a pre-screwing device provided in embodiment 4 of the present invention.
Fig. 7 is a right side view of fig. 6.
Fig. 8 is a cross-sectional view between two annular mounting plates of fig. 6.
Fig. 9 is a partial structural schematic view of a locking mechanism in a pre-screwing device provided in an embodiment of the present invention.
Description of the drawings
Pre-screwing assembly 300, rotating shaft 301, twisting part 302, sleeve 303, transmission part (belt wheel) 304, anti-loosening bearing nut 305, bearing sleeve 306, base circle 307 and bearing 308
A locking bolt 601 and a locking hole 602.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
The embodiment provides an installation seat, which includes a seat body 201, where the seat body 201 is provided with a constraint hole 203 for installing a bearing 308 and/or a rotating shaft, as shown in fig. 2 and 3, two sides of the seat body 201 are respectively symmetrically provided with a first constraint portion 202, and the first constraint portion 202 is used for forming a moving pair with a second constraint portion 404 on an installation frame 401.
In this embodiment, by providing the restriction hole 203, the outer ring of the bearing 308 can be fixed, and the inner ring of the bearing 308 can be fixed to the rotating shaft 301, so that the rotating shaft 301 can be fixed to the present bearing 308 base 200, and the rotating shaft 301 can rotate relative to the bearing 308 base 200; in addition, in this embodiment, the bearing 308 seat 200 is further provided with a first restriction portion 202 adapted to the mounting block 401, and the first restriction portion 202 may cooperate with a second restriction portion 404 on the mounting block 401 and constitute a moving pair, so that the bearing 308 seat 200 may be movably mounted on the mounting block 401 through the first restriction portion 202, and when the position of the bearing 308 seat 200 needs to be adjusted, the bearing 308 seat 200 may move relative to the mounting block 401 through the cooperation of the first restriction portion 202 and the second restriction portion 404, thereby effectively adjusting the position of the bearing 308 seat 200, i.e., making the position of the rotating shaft 301 adjustable, so as to be suitable for assembling wheelset front covers of different models.
It will be appreciated that when the restraining aperture 203 is used to mount a bearing, it may be referred to as a bearing aperture.
In this embodiment, the first constraining portion 202 may be a sliding groove disposed on a side surface of the base 201, as shown in fig. 2 and 3, at this time, the second constraining portion 404 is a strip-shaped protrusion disposed on the mounting frame 401, the sliding groove is adapted to the strip-shaped protrusion and forms a sliding pair, so that the bearing 308 base 200 can be constrained by the strip-shaped protrusion, and the bearing 308 base 200 can also move along a length direction of the strip-shaped protrusion to adjust a position;
similarly, the first constraining portion 202 may also be a strip-shaped protrusion disposed on the side surface of the seat body 201; in this case, the second constraining section 404 is a chute provided in the mounting block 401, and the same technical effects can be achieved.
As shown in fig. 2 and fig. 3, in the present embodiment, the seat 201 has a square structure, and the first constraining portions 202 are respectively disposed on two parallel side surfaces of the seat 201. Simple structure, convenient molding and installation.
For fixing to the outer ring of the bearing 308, the restraining hole 203 is a stepped hole, and as shown in fig. 2 and 3, the restraining hole 203 may be a stepped hole having a step to facilitate positioning and restraining of the installation of a bearing 308; the restraining hole 203 may also be a stepped hole having two steps, as shown in fig. 2 and 3, that is, an annular protrusion 204 is disposed in the middle of the restraining hole 203, and two sides of the annular protrusion 204 may respectively position and restrain one bearing 308, so that the installation of the double bearings 308 is realized, which is very convenient.
Example 2
On the basis of embodiment 1, the present embodiment provides a pre-screwing assembly 300, which includes a rotating shaft 301 and at least one bearing 308 seat 200 described in embodiment 1, wherein the rotating shaft 301 is mounted on the bearing 308 seat 200 through a bearing 308, as shown in fig. 4 and 5; when the rotating shaft 301 is mounted on the bearing 308 base 200 through the bearing 308, the rotating shaft 301 can only rotate relative to the bearing 308 base 200 and cannot move relative to the bearing 308 base 200, and when the bearing 308 base 200 is mounted on the mounting frame 401 through the first constraining part 202, the position of the bearing 308 base 200 is adjustable, so that the position of the rotating shaft 301 is adjustable.
In order to facilitate transmission, the rotating shaft 301 is further provided with a transmission part 304 for transmission, and the transmission part 304 is a gear or a belt wheel 304; so that the driving motor 501 can drive the rotating shaft 301 to rotate through gear transmission or belt transmission, and the bolt can be pre-screwed.
In order to solve the problem of uniform stress on the rotating shaft 301, in the present embodiment, two bearing 308 seats 200 are disposed on the rotating shaft 301, and the transmission portion 304 is disposed between the two bearing 308 seats 200, as shown in fig. 4 and 5, in order to facilitate the disposition of the bearing 308 between the bearing 308 seat 200 and the rotating shaft 301, the rotating shaft 301 preferably adopts a stepped shaft, one bearing 308 may be mounted at a journal of the rotating shaft 301, the bearing 308 is fixed to one of the bearing 308 seats 200, as shown in fig. 4 and 5, while the other bearing 308 seat 200 may be mounted to the rotating shaft 301 through the bearing 308 and a bearing sleeve 306303, as shown in fig. 4 and 5, the bearing 308 may be fixed by a nut 305 of the anti-loose bearing 308.
In order to achieve the function of pre-screwing the bolt, in one scheme, one end of the rotating shaft 301 is configured with a torsion portion 302 matched with the head of the bolt so as to connect the head of the bolt, so that the rotating shaft 301 can drive the bolt to rotate through the torsion portion 302.
In another scheme, the pre-screwing assembly 300 further comprises a sleeve 303, one end of the sleeve 303 is detachably fixed to the rotating shaft 301 (for example, threaded connection is adopted), the other end of the sleeve 303 is provided with a twisting portion 302 matched with the head of the bolt, and the twisting portion 302 is arranged and can be conveniently matched with the head of the bolt in the front cover assembly 100, so that the bolt is driven to rotate by rotation of the rotating shaft 301, and the purpose of automatically assembling the bolt can be achieved.
Since the head of the bolt has various types, the torsion portion 302 may be a hexagonal hole (as shown in fig. 5) or a dodecagonal hole adapted to the head of the bolt, in which case, the bolt is an outer hexagonal bolt;
the torsion portion 302 may also be a hexagonal prism or a dodecagonal prism adapted to the head of the bolt, in this case, the bolt is a hexagon socket head cap screw;
the torsion portion 302 may also be a linear protrusion adapted to the head of the bolt, and at this time, the head of the bolt is provided with a linear groove;
similarly, the torsion portion 302 may also be a cross-shaped protrusion adapted to the head of the bolt, and at this time, the head of the bolt is provided with a cross-shaped groove; so that the bolt of adaptation different models, the commonality is better.
Example 3
This embodiment 3 provides a pre-screwing device, which includes an installation frame 401, a driving motor 501, and at least three pre-screwing assemblies 300 according to embodiment 2, where the installation frame 401 is provided with at least three strip-shaped slots 403, the strip-shaped slots 403 are respectively radially distributed along a circumferential direction, two sides in the strip-shaped slots 403 are provided with second constraining portions 404 matched with the first constraining portions 202, the bearing 308 seats 200 are respectively provided in the strip-shaped slots 403, the first constraining portions 202 and the second constraining portions 404 form a moving pair, and the rotating shafts 301 are respectively uniformly distributed along a circumferential direction of a same circle (for convenience of description, a circle where each rotating shaft 301 is located may be referred to as a base circle 307, and the base circle 307 does not really exist);
the driving motor 501 is connected to each rotating shaft 301 through a transmission part 304, and is used for driving each rotating shaft 301 to rotate. In this embodiment, the rotating shafts 301 are respectively mounted on the mounting frame 401 through the bearing 308 seats 200, so that the circle centers of the circles where the rotating shafts 301 are located coincide with the circle centers corresponding to the strip-shaped clamping grooves 403, and the positions of the bearing 308 seats 200 can be adjusted in the radial direction relative to the circle centers, so that the circle centers of the circles where the rotating shafts 301 are located can be effectively changed, and the rotating shafts can be conveniently adapted to front cover assemblies 100 and wheel sets of different models, as shown in fig. 6 to 8, and the universality is better.
The driving motor 501 may preferably be a servo motor or a stepping motor, and when the transmission part 304 is a gear, the transmission part 304 includes a gear transmission mechanism, and when the transmission part 304 is a pulley 304, the transmission part 304 includes a belt transmission mechanism; as shown in fig. 8, in the present embodiment, the transmission component 304 is a belt transmission mechanism, the belt transmission mechanism includes a transmission belt 503, a driving pulley 502 connected to an output shaft of the driving motor 501, and at least one tension pulley 504, the transmission belt 503 is sleeved on the driving pulley 502 and the pulley 304, and the tension pulley 504 tensions the transmission belt 503, so that a set friction force is provided between the pulley 304 and the transmission belt 503 in each rotating shaft 301; when the bolt is pre-screwed, the driving motor 501 drives the braking belt wheels 304 to rotate, and drives each belt wheel 304 to rotate through the driving belt 503, so that each rotating shaft 301 is synchronously driven to rotate in the same direction and at the same speed, and the pre-screwing work of the bolt is synchronously completed; in addition, the use of the belt 503 for transmission also has two advantages not possessed by the remaining members of the transmission section 304:
1: the purpose of adjusting the friction force between the belt wheel 304 and the transmission belt 503 can be achieved by reasonably setting the position of the tension wheel 504, so that the transmission belt 503 can slip when the stress on the transmission belt 503 reaches a set stress value, and the pretightening force of each bolt can be effectively controlled;
2: the transmission belt 503 has certain flexibility and can automatically deform along with the change of the positions of the rotating shafts 301, so that after the positions of the pre-screwing assemblies 300 are adjusted, the driving motor 501 can still be used for effective transmission, and the transmission belt is suitable for front cover assemblies 100 and wheel pairs of different models.
As shown in fig. 6, the mounting rack 401 preferably includes at least one annular mounting plate 402, and the strip-shaped slots 403 are disposed on the annular mounting plate 402 so as to respectively constrain and fix one bearing 308 seat 200 on the rotating shaft 301; as shown in fig. 5 and 6, when the rotating shaft 301 is provided with two bearing 308 seats 200, the mounting frame 401 may include two annular mounting plates 402, and the two annular mounting plates 402 may be connected into a whole through a connecting rod 405, and at least three strip-shaped slots 403 with the same number and the same distribution position are respectively provided on the two annular mounting plates 402, as shown in fig. 7 or 8, so as to facilitate the mounting of the rotating shaft 301 more stably.
After the bearing 308 seat 200 is adjusted in place, the pre-screwing assembly 300 has various embodiments, as a possible embodiment, in this embodiment, the pre-screwing assembly further includes a locking mechanism, the locking mechanism includes a locking bolt 601 and a plurality of locking holes 602 (the locking holes 602 are provided with internal threads adapted to the locking bolt 601) disposed on the mounting block 401, the locking holes 602 correspond to the strip-shaped slots 403 and are distributed along the length direction of the strip-shaped slots 403, as shown in fig. 9, after the bearing 308 seat 200 is adjusted in place, the locking bolt 601 may press the seat body 201 through the locking holes 602, so that the bearing 308 seat 200 may be effectively locked, and the purpose of locking the pre-screwing assembly 300 may be achieved.
In order to facilitate locking the bearing 308 seat 200, in a further embodiment, the bearing 308 seat includes one locking hole 602, the locking hole 602 is a strip hole, a threaded hole is disposed at a position on the seat body 201 corresponding to the locking hole 602, when the bearing 308 seat 200 is adjusted to a proper position, a screw of the locking bolt 601 passes through the locking hole 602 and is inserted into the threaded hole, and the bearing 308 seat 200 can be effectively locked by tightening the locking bolt 601, which is not illustrated herein.
It is understood that a conventional front cover assembly 100 is shown in fig. 1, and the pre-tightening (or referred to as pre-tightening) is a common means in the bolt assembling process, and will not be described herein.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (10)
1. The mounting seat is characterized by comprising a seat body, wherein the seat body is provided with a constraint hole for mounting a bearing and/or a rotating shaft, two sides of the seat body are respectively and symmetrically provided with a first constraint part, and the first constraint parts are used for forming a moving pair with a second constraint part on a mounting frame.
2. The mounting seat according to claim 1, wherein the first constraining portion is a sliding slot disposed on a side surface of the seat body,
or, the first constraint part is a strip-shaped bulge arranged on the side surface of the seat body.
3. The mounting seat according to claim 1 or 2, wherein the seat body has a square structure, and the first constraining portions are respectively disposed on two parallel side surfaces of the seat body.
4. A pre-twisted assembly comprising a shaft and at least one mounting block according to any one of claims 1 to 3, the shaft being mounted to the mounting block by means of a bearing.
5. The pre-screwing assembly of claim 4, wherein the rotating shaft is further provided with a transmission part for transmission, and the transmission part is a gear or a belt wheel.
6. The prewirling assembly of claim 4 or 5, wherein one end of the rotating shaft is configured with a torsion portion adapted to a head of a bolt,
or the bolt further comprises a sleeve, one end of the sleeve is detachably fixed on the rotating shaft, and the other end of the sleeve is provided with a torsion part matched with the head of the bolt.
7. The prewiridng assembly of claim 6, wherein the torsion portion is a hexagonal hole, a dodecagonal hole, a hexagonal prism, a dodecagonal prism, a linear protrusion, or a cross-shaped protrusion that fits the head of the bolt.
8. A pre-screwing device is characterized by comprising a mounting frame and at least three pre-screwing assemblies according to any one of claims 4 to 7, wherein the mounting frame is provided with at least three strip-shaped clamping grooves which are respectively distributed in the radial direction along the circumferential direction, two sides in each strip-shaped clamping groove are arranged on second constraint parts matched with the first constraint parts, mounting seats are respectively arranged on the strip-shaped clamping grooves, the first constraint parts and the second constraint parts form moving pairs, and rotating shafts are respectively and uniformly distributed along the circumferential direction of the same circle.
9. The pre-screwing device according to claim 8, further comprising a driving motor connected to each rotating shaft through a transmission member for driving each rotating shaft to rotate.
10. The pre-screwing device according to claim 8 or 9, further comprising a locking mechanism, wherein the locking mechanism comprises a locking bolt and a plurality of locking holes arranged on the mounting rack, the locking holes correspond to the strip-shaped clamping grooves and are distributed along the length direction of the strip-shaped clamping grooves,
the lockhole is provided with an internal thread matched with the locking bolt, and the locking bolt compresses the base body through the lockhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021404257.0U CN213164019U (en) | 2020-07-16 | 2020-07-16 | Mounting seat, twist subassembly in advance and twist device in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021404257.0U CN213164019U (en) | 2020-07-16 | 2020-07-16 | Mounting seat, twist subassembly in advance and twist device in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213164019U true CN213164019U (en) | 2021-05-11 |
Family
ID=75793771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021404257.0U Active CN213164019U (en) | 2020-07-16 | 2020-07-16 | Mounting seat, twist subassembly in advance and twist device in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213164019U (en) |
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2020
- 2020-07-16 CN CN202021404257.0U patent/CN213164019U/en active Active
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Address after: Building 66, NO.666, jinfenghuang Avenue, Jinniu high tech Industrial Park, Chengdu, Sichuan 610000 Patentee after: Sichuan guoruan Technology Group Co.,Ltd. Address before: Building 66, NO.666, jinfenghuang Avenue, Jinniu high tech Industrial Park, Chengdu, Sichuan 610000 Patentee before: SICHUAN GUORUAN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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