CN210559206U - But height-adjusting's stand - Google Patents
But height-adjusting's stand Download PDFInfo
- Publication number
- CN210559206U CN210559206U CN201921026324.7U CN201921026324U CN210559206U CN 210559206 U CN210559206 U CN 210559206U CN 201921026324 U CN201921026324 U CN 201921026324U CN 210559206 U CN210559206 U CN 210559206U
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- Prior art keywords
- upright column
- column shell
- sleeve
- lead screw
- stop block
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Abstract
The utility model discloses a but height-adjusting's stand relates to mechanical stand technical field. The utility model relates to a height-adjustable upright post, which comprises an upright post shell, a lifting device, a stop block and a screw sleeve; the lower end of the upright column shell is fixedly arranged on the mounting seat, the upper end of the upright column shell is provided with a stop block, and the middle part of the upright column shell is provided with a supporting plate; the threaded sleeve is provided with a threaded through hole along the axis, the upper end of the threaded sleeve is provided with a horizontal plate for mounting a speed reducer, and the lower end of the threaded sleeve penetrates through the stop block and extends into the upright post shell; the lifting device comprises a worm gear transmission mechanism and a lead screw, the lead screw is fixedly connected with a worm wheel in the worm gear transmission mechanism, one end of the lead screw is matched and connected with a threaded through hole of the screw sleeve, and the other end of the lead screw is installed on the supporting plate through a bearing assembly. Through at stand internal design worm gear structure and cooperate with the lead screw, realized the height-adjustable of stand, saved manpower and materials, also saved the space simultaneously.
Description
Technical Field
The utility model relates to a mechanical column structure technical field, more specifically say, but relate to a height-adjusting's stand.
Background
A plurality of angle-variable speed reducer products are generally required to be installed on the angle-variable speed reducer test bed, and because each angle-variable speed reducer is different from the corresponding input end in height, the installation height of the angle-variable speed reducer needs to be adjusted.
In order to adjust the height, a column is usually mounted on the test bed. The traditional method is to install upright columns with different heights on a variable angle reducer test bed, and install the variable angle reducer on the test bed, or install upright columns with fixed heights and realize the adjustment of the installation height of the variable angle reducer by installing cushion blocks with different heights on the upright columns.
Adopt above-mentioned stand, either need process many stands of multiple height, or need process the cushion of multiple height for it wastes time and energy to change, and the stand or the cushion of changing often need occupy a large amount of space storage moreover, have a great deal of inconveniences.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
An object of the utility model is to overcome the inconvenient technical problem of current stand altitude mixture control, but a height-adjusting's stand is provided. The utility model discloses a cooperate at stand internal design worm gear structure and with the lead screw, realized the height-adjustable of stand, saved manpower and materials, also saved the space simultaneously.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
a height-adjustable upright post comprises an upright post shell, a lifting device, a stop block and a screw sleeve;
the lower end of the upright column shell is provided with a fixed plate, the upper end of the upright column shell is provided with a stop block, and the middle part of the upright column shell is provided with a supporting plate;
the threaded sleeve is provided with a threaded through hole along the axis, the upper end of the threaded sleeve is provided with a horizontal plate for mounting a speed reducer, and the lower end of the threaded sleeve penetrates through the stop block and extends into the upright post shell;
the lifting device comprises a worm gear transmission mechanism and a lead screw, a worm in the worm gear transmission mechanism radially penetrates through the upright column shell, one end of the worm gear transmission mechanism is installed on the side wall of the upright column shell through a bearing, and the other end of the worm gear transmission mechanism penetrates through the side wall of the upright column shell and then is connected with the hand wheel;
the screw rod is fixedly connected with a worm wheel in the worm and gear transmission mechanism, one end of the screw rod is matched and connected with the threaded through hole of the screw sleeve, and the other end of the screw rod is arranged on the supporting plate through a bearing assembly.
Further, the external thread of the lead screw is a trapezoidal thread.
The locking device comprises a cam mounting seat, a locking cylindrical pin and a cam with a handle;
the cam mounting seat is mounted on the side face of the top of the upright column shell and penetrates through the stop block along the radial direction, the locking cylindrical pin is inserted into the cam mounting seat, a cam with a handle is mounted at one end of the locking cylindrical pin, and the other end of the locking cylindrical pin is in contact with the outer surface of the threaded sleeve.
Furthermore, the locking device is a set screw, and the set screw sequentially penetrates through the side wall of the upright column shell and the stop block along the radial direction and then is contacted with the outer surface of the threaded sleeve.
Furthermore, a guide rod is fixedly arranged on the horizontal plate, penetrates through the stop block and extends into the upright column shell.
Furthermore, a blocking piece is arranged at the end part of the guide rod positioned in the upright column shell, and the diameter of the blocking piece is larger than the outer diameter of the guide rod.
Further, the bearing assembly comprises a sleeve vertically mounted on the support plate, and a tapered roller bearing, a spacer bush and a deep groove ball bearing are mounted in the sleeve.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the utility model discloses a but height-adjusting's stand sets up elevating gear inside the stand, through rotating the hand wheel for the worm rotates, and then drives the worm wheel and rotate, because the centre bore of lead screw and worm wheel is fixed, therefore drives the lead screw and rotates, under screw-thread fit's effect, makes the swivel nut can realize the up-and-down motion, thereby has realized the adjustable of stand height, and convenient to use has reduced operating personnel intensity of labour, has also saved the space.
(2) The utility model discloses a but height-adjusting's stand adopts trapezoidal lead screw promptly the external screw thread of lead screw to be trapezoidal thread with the lead screw, and its auto-lock performance is better, when adjusting the stand to a certain height, can be stable play the supporting role.
(3) The height-adjustable stand column of the utility model adopts the eccentric cam locking structure through the locking device, when the stand column needs to be locked, only the handle needs to be pulled down, and the screw sleeve is tightly supported through one side with the large diameter of the cam; when the vertical column is loosened, the handle is lifted, one side of the cam with the small diameter is in contact with the threaded sleeve, the stability of the vertical column during height adjustment and fixation is further guaranteed, the locking device can also adopt a locking screw, and only the thread is screwed up and loosened.
(4) The height-adjustable upright post of the utility model is provided with the guide rod on the horizontal plate, which can prevent the screw sleeve from rotating in the lifting process; the bottom of the guide rod is provided with the fixed piece, the blocking piece is fixed on the guide rod through the nut, and the guide rod is driven to move up and down in the process that the threaded sleeve moves up and down, so that the guide rod cannot be separated from the stop block due to over-high lifting.
(5) The height-adjustable upright post of the utility model connects the sleeve with the lead screw through the deep groove ball bearing, and the spacer bush is arranged between the lead screw and the sleeve, so that the lead screw can rotate more flexibly, and the friction between the lead screw and the upright post is reduced; and the surface of the screw rod is contacted with the side surface of the tapered roller bearing, the large-diameter bottom surface of the tapered roller bearing is upward, and the axial force borne by the lengthened T-shaped thread sleeve after the parts are installed is borne and decomposed.
Drawings
Fig. 1 is a front view structural section of a column of the present invention;
fig. 2 is a side view of the column of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.
The reference numerals in the schematic drawings illustrate: 1. a column housing; 2. a lead screw; 3. a hand wheel; 4. a worm; 5. a worm gear; 6. a guide bar; 7. a horizontal plate; 8. a cam mount; 9. a cam with a handle; 10. locking the cylindrical pin; 11. a baffle plate; 12. a nut; 13. a deep groove ball bearing; 14. a spacer sleeve; 15. a tapered roller bearing; 16. a speed reducer; 17. a stopper; 18. a threaded sleeve; 19. a separator.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
Example 1
The height-adjustable upright column of the embodiment comprises: comprises a column shell 1, a lifting device, a stop block 17 and a threaded sleeve 18; the lower end of the upright column shell 1 is provided with a fixed plate, the upper end is provided with a stop block 17, and the middle part is provided with a supporting plate 19; the threaded sleeve 18 is provided with a threaded through hole along the axis, the upper end of the threaded sleeve 18 is provided with a horizontal plate 7 for mounting a speed reducer 16, and the lower end of the threaded sleeve 18 penetrates through the stop block 17 and extends into the upright column shell 1; the lifting device comprises a worm gear transmission mechanism and a lead screw 2, a worm 4 in the worm gear transmission mechanism penetrates through the upright column shell 1 along the radial direction, one end of the worm 4 is installed on the side wall of the upright column shell 1 through a bearing, and the other end of the worm 4 penetrates through the side wall of the upright column shell 1 and then is connected with a hand wheel 3; the lead screw 2 is fixedly connected with a worm wheel 5 in a worm and gear transmission mechanism, one end of the lead screw 2 is matched and connected with a threaded through hole of the threaded sleeve 18, the other end of the lead screw is arranged on a supporting plate 19 through a bearing assembly, and the external thread of the lead screw 2 is a trapezoidal thread; the horizontal plate 7 is fixedly provided with a guide rod 6, the guide rod 6 penetrates through a stop block 17 and extends into the upright column shell 1, a blocking piece 11 is arranged at the end part of the guide rod 6 positioned in the upright column shell, the diameter of the blocking piece 11 is larger than the outer diameter of the guide rod 6, and the blocking piece 11 is fixed with the guide rod 6 through a nut 12; specifically, the bearing assembly includes a sleeve vertically mounted on a support plate 19, in which a tapered roller bearing 15, a spacer 14 and a deep groove ball bearing 13 are mounted.
The utility model discloses a but height-adjusting's stand use principle as follows: the speed reducer 16 is arranged on the horizontal plate 7, the hand wheel 3 is rotated, the worm 4 is rotated, the worm wheel 5 is further driven to rotate, the lead screw 2 is driven to rotate due to the fact that the lead screw 2 is fixed with a central hole of the worm wheel 5, the threaded sleeve 18 can move up and down under the effect of thread fit, the height of the upright post can be adjusted, meanwhile, a guide rod is arranged between the threaded sleeve 18 and a baffle plate of the upright post, the threaded sleeve 18 can be prevented from rotating in the lifting process, furthermore, a baffle plate 11 is arranged at the bottom of the guide rod, the baffle plate is fixed on the guide rod 6 through a nut 12, the guide rod 6 is driven to move up and down in the up and down moving process of the threaded sleeve 18, the guide rod 6 cannot be separated from the baffle plate 17 due to over-high lifting, meanwhile, the sleeve is connected with the lead screw 2 through a deep groove ball bearing 13, and a, the screw rod 2 is more flexible in rotation, and the friction between the screw rod 2 and the upright post is reduced; and the tapered roller bearing 15 is arranged on the sleeve, the large-diameter bottom surface of the tapered roller bearing 15 faces upwards, and the axial force received by the thread sleeve 18 after the parts are installed is born and decomposed.
Example 2
The structure of the height-adjustable upright column is basically the same as that of the embodiment 1, and the height-adjustable upright column is more optimized and further comprises a locking device, wherein the locking device comprises a cam mounting seat 8, a locking cylindrical pin 10 and a cam 9 with a handle; the cam mounting seat 8 is mounted on the side surface of the top of the upright column shell 1 and penetrates through the stop block 17 along the radial direction, the locking cylindrical pin 10 is inserted into the cam mounting seat 8, one end of the locking cylindrical pin 10 is provided with the cam 9 with the handle, and the other end of the locking cylindrical pin is in contact with the outer surface of the threaded sleeve 18; the locking device can also be set as a set screw, and the set screw sequentially penetrates through the side wall of the upright column shell 1 and the stop block 17 along the radial direction and then is contacted with the outer surface of the threaded sleeve 18.
By arranging the locking device and adopting an eccentric cam locking structure, when locking is needed, only the handle is pulled down, and the lengthened screw sleeve is abutted through one side with the large diameter of the cam; when the vertical column is loosened, the handle is lifted, so that one side of the cam with the small diameter is in contact with the threaded sleeve 18, and the stability of the vertical column during height adjustment and fixation is further ensured; when the locking device adopts the locking screw, the locking screw only needs to be screwed and loosened.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a but height-adjusting's stand which characterized in that: comprises a column shell (1), a lifting device, a stop block (17) and a threaded sleeve (18);
the lower end of the upright column shell (1) is provided with a fixed plate, the upper end of the upright column shell is provided with a stop block (17), and the middle part of the upright column shell is provided with a supporting plate (19);
the screw sleeve (18) is provided with a threaded through hole along the axis, the upper end of the screw sleeve (18) is provided with a horizontal plate (7) for mounting a speed reducer (16), and the lower end of the screw sleeve (18) penetrates through the stop block (17) and extends into the upright column shell (1);
the lifting device comprises a worm gear transmission mechanism and a lead screw (2), a worm (4) in the worm gear transmission mechanism radially penetrates through the upright column shell (1), one end of the worm gear transmission mechanism is installed on the side wall of the upright column shell (1) through a bearing, and the other end of the worm gear transmission mechanism penetrates through the side wall of the upright column shell (1) and then is connected with a hand wheel (3);
the lead screw (2) is fixedly connected with a worm wheel (5) in the worm and gear transmission mechanism, one end of the lead screw (2) is matched and connected with the threaded through hole of the screw sleeve (18), and the other end of the lead screw is arranged on a supporting plate (19) through a bearing assembly.
2. An adjustable height mast as claimed in claim 1, wherein: the external thread of the lead screw (2) is a trapezoidal thread.
3. An adjustable height mast as claimed in claim 1, wherein: the locking device comprises a cam mounting seat (8), a locking cylindrical pin (10) and a cam (9) with a handle;
the cam mounting seat (8) is mounted on the side face of the top of the upright column shell (1) and penetrates through the stop block (17) along the radial direction, the locking cylindrical pin (10) is inserted into the cam mounting seat (8), one end of the locking cylindrical pin (10) is provided with the cam (9) with the handle, and the other end of the locking cylindrical pin is in contact with the outer surface of the threaded sleeve (18).
4. An adjustable height mast as claimed in claim 1, wherein: the locking device is a set screw, and the set screw sequentially penetrates through the side wall of the upright column shell (1) and the stop block (17) along the radial direction and then is in contact with the outer surface of the threaded sleeve (18).
5. An adjustable height mast as claimed in claim 1, wherein: the horizontal plate (7) is fixedly provided with a guide rod (6), and the guide rod (6) penetrates through the stop block (17) and extends into the upright column shell (1).
6. An adjustable height mast as claimed in claim 5, wherein: and a blocking piece (11) is arranged at the end part of the guide rod (6) positioned in the upright column shell, and the diameter of the blocking piece (11) is larger than the outer diameter of the guide rod (6).
7. An adjustable height mast as claimed in claim 1 or 2, wherein: the bearing assembly comprises a sleeve vertically arranged on a support plate (19), and a tapered roller bearing (15), a spacer bush (14) and a deep groove ball bearing (13) are arranged in the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921026324.7U CN210559206U (en) | 2019-07-03 | 2019-07-03 | But height-adjusting's stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921026324.7U CN210559206U (en) | 2019-07-03 | 2019-07-03 | But height-adjusting's stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210559206U true CN210559206U (en) | 2020-05-19 |
Family
ID=70627722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921026324.7U Expired - Fee Related CN210559206U (en) | 2019-07-03 | 2019-07-03 | But height-adjusting's stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210559206U (en) |
-
2019
- 2019-07-03 CN CN201921026324.7U patent/CN210559206U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 |