CN212775386U - Novel mechanical steering gear with adjustable clearance - Google Patents
Novel mechanical steering gear with adjustable clearance Download PDFInfo
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- CN212775386U CN212775386U CN202021818855.2U CN202021818855U CN212775386U CN 212775386 U CN212775386 U CN 212775386U CN 202021818855 U CN202021818855 U CN 202021818855U CN 212775386 U CN212775386 U CN 212775386U
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Abstract
The utility model relates to a novel mechanical steering gear with adjustable clearance, which comprises a shell, a worm wheel and a worm, wherein two mounting frames are arranged on two sides in the shell, the worm is rotationally connected with the mounting frames through a bearing, an adjusting screw sleeve is arranged on the mounting frames in a sliding way, a screw rod is connected in the adjusting screw sleeve in a threaded way, a pre-tightening spring is arranged between the screw rod and the adjusting screw sleeve, one end of the pre-tightening spring is fixedly connected with the threaded end of the screw rod, the other end of the pre-tightening spring is fixedly connected with the inner bottom of the adjusting screw sleeve, a rotating adjusting rod is arranged on the outer part of the shell, one end of the screw rod, which is far away from the adjusting screw sleeve, penetrates through the inner wall of the shell and then extends to the outer part of the shell to be fixedly connected with the rotating adjusting rod, one end of the adjusting screw sleeve, which, high transmission precision, good dustproof effect and low noise.
Description
Technical Field
The utility model relates to a novel mechanical steering gear of clearance adjustable.
Background
With the rapid development of national economy, the automobile yield of China is increased year by year, and the automobile production in the front of the world is already in the front of the automobile production, so that the automobile production in the world becomes a big country. With the increasing expansion of automobile production scale and the increasing of variety, the automobile in China becomes a household with goods gradually entering common people, and the automobile becomes a common reality instead of walking, so that higher requirements are provided for the product quality of the automobile, a mechanical steering gear is an important structure in the automobile, the existing mechanical steering gear mainly comprises a shell, a worm wheel and a worm, the worm and the worm are abraded after long-time use, the transmission precision is reduced, the performance of the automobile is influenced, in addition, the worm can impact the shell in the use process, noise is generated, meanwhile, the dustproof effect of the existing shell is not good, dust easily enters the shell to influence the transmission of the worm and the worm, and therefore improvement is necessary.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a novel mechanical steering gear of clearance adjustable that transmission precision is high, and is dustproof effectual, and the noise is little.
The technical scheme of the utility model is realized like this: the utility model provides a novel mechanical steering gear of clearance adjustable, includes casing, worm wheel, worm, the worm wheel rotates and sets up in the casing, the worm wheel is connected its characterized in that with the worm meshing: the utility model discloses a novel adjustable worm, including casing, worm, mounting bracket, adjusting swivel nut, pre-tightening spring, adjusting screw sleeve and bearing, the both sides are equipped with two mounting brackets in the casing, the worm passes through the bearing and is connected with the mounting bracket rotation, the slip is equipped with the adjusting screw sleeve on the mounting bracket, threaded connection has the screw rod in the adjusting screw sleeve, be equipped with the pre-tightening spring between screw rod and the adjusting screw sleeve, pre-tightening spring one end and screw rod threaded end fixed connection, the bottom fixed connection in the pre-tightening spring other end and the adjusting screw sleeve, the casing outside is equipped with the rotation regulating rod, the one end that the screw.
By adopting the technical scheme, the mounting frame is fixed in the shell, the worm is rotationally connected with the mounting frame through the bearing, a driver rotates the worm wheel in the use process, the worm wheel and the worm are meshed with each other to drive the worm to realize force transmission, after long-time use, the worm wheel and the worm are abraded to increase the clearance between the worm wheel and the worm at the original position, the transmission precision is reduced, the screw rod is driven to rotate by rotating the adjusting rod, the screw rod is in threaded fit with the adjusting screw sleeve, the screw rod only can radially rotate, then the screw rod drives the adjusting screw sleeve to move towards the direction close to the bearing, the adjusting screw sleeve pushes the bearing towards the direction close to the worm wheel, the bearing pushes the worm towards the direction close to the worm wheel, the clearance between the worm wheel and the worm is reduced at the moment, the transmission precision is higher, the pre-tightening, overall structure is more stable in the use, is equipped with the opening on the casing lateral wall, and sealed lid is established in the opening, can avoid the dust to get into and influence transmission effect in the casing, and the worm can produce axial skew in transmission process and strike the casing, and to the impact of casing when buffer pad can avoid buffering the worm skew, the noise has been reduced, has prolonged the life of worm, compares with prior art, the utility model discloses can adjust the clearance between worm wheel and the worm, transmission precision is high, and is dustproof effectual, and the noise is little.
The utility model discloses further set up to: the sealing cover is provided with a plurality of through holes at intervals, and one side of each through hole, which is far away from the worm, is provided with a dust screen.
Through adopting above-mentioned technical scheme, worm wheel and worm can produce the heat at the transmission in-process, and the through-hole can accelerate thermal giving off, and the dust screen can avoid the dust to get into the casing through the through-hole and cause the influence to worm gear's transmission.
The utility model discloses further set up to: and a plurality of radiating fins are arranged on one side of the shell, which is far away from the sealing cover, at intervals.
Through adopting above-mentioned technical scheme, radiating fin can accelerate giving off of heat in the casing, makes the transmission process more stable.
The utility model discloses further set up to: be equipped with adjusting spring between mounting bracket and the bearing, one side fixed connection that adjusting swivel nut was kept away from to adjusting spring one end and bearing, the adjusting spring other end and mounting bracket lateral wall fixed connection.
Through adopting above-mentioned technical scheme, adjusting spring fixes between bearing and mounting bracket, enables the interval between worm wheel and the worm and adjusts more stably, also can play a absorbing effect in the use.
The utility model discloses further set up to: the buffer gasket is in a non-closed ring shape.
Through adopting above-mentioned technical scheme, there is an opening on the blotter piece for buffer spacer is difficult for taking place deformation when bearing the worm and assault, and the cushioning effect is better, and life is longer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a part a of fig. 1.
Fig. 3 is a schematic view of a cushion pad according to an embodiment of the present invention.
The labels in the figures are:
the device comprises a shell 1, a worm wheel 2, a worm 3, a mounting rack 4, a bearing 5, an adjusting threaded sleeve 6, a screw rod 7, a pre-tightening spring 8, a rotating adjusting rod 9, a sealing cover 10, a buffer gasket 11, a through hole 12, a dust screen 13, a heat dissipation fin 14 and an adjusting spring 15.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model discloses a novel mechanical steering gear of clearance adjustable, including casing 1, worm wheel 2, worm 3, worm wheel 2 rotates and sets up in casing 1, worm wheel 2 is connected with the meshing of worm 3 in the utility model discloses in the embodiment: two mounting brackets 4 are arranged on two sides in the shell 1, the worm 3 is rotatably connected with the mounting brackets 4 through bearings 5, an adjusting threaded sleeve 6 is slidably arranged on the mounting rack 4, a screw rod 7 is connected with the adjusting threaded sleeve 6 through threads, a pre-tightening spring 8 is arranged between the screw rod 7 and the adjusting screw sleeve 6, one end of the pre-tightening spring 8 is fixedly connected with the threaded end of the screw rod 7, the other end of the pre-tightening spring 8 is fixedly connected with the bottom in the adjusting screw sleeve 6, a rotary adjusting rod 9 is arranged outside the shell 1, one end of the screw rod 7 far away from the adjusting screw sleeve 6 penetrates through the inner wall of the shell 1 and then extends to the outside of the shell 1 to be fixedly connected with the rotating adjusting rod 9, the adjusting screw sleeve 6 is far away from one end of the screw rod 7 and fixedly connected with the outer wall of the bearing 5, a sealing cover 10 is arranged on the side wall of the shell 1 and located at one end of the worm 3, and a buffer gasket 11 is arranged between the sealing cover 10 and the worm 3.
By adopting the technical scheme, the mounting frame 4 is fixed in the shell 1, the worm 3 is rotatably connected with the mounting frame 4 through the bearing 5, a driver rotates the worm wheel 2 in the using process, the worm wheel 2 and the worm 3 are meshed with each other to drive the worm 3 to realize force transmission, after long-time use, the worm wheel 2 and the worm 3 are worn to increase the gap between the worm wheel 2 and the worm 3 at the original position, the transmission precision is reduced, the screw 7 is driven to rotate by rotating the adjusting rod 9, the screw 7 is in threaded fit with the adjusting screw sleeve 6, the screw 7 can only rotate in the radial direction, so that the adjusting screw sleeve 6 is driven by the screw 7 to move towards the direction close to the bearing 5, the adjusting screw sleeve 6 pushes the bearing 5 towards the direction close to the worm wheel 2, the bearing 5 pushes the worm 3 towards the direction close to the worm wheel 2, the gap between the worm wheel 2 and the worm 3 is reduced, the transmission, can make and remain certain pretightning force throughout between screw rod 7 and the regulation swivel nut 6, overall structure is more stable in the use, is equipped with the opening on the casing 1 lateral wall, and sealed lid 10 is established in the opening, can avoid the dust to get into influence transmission effect among the casing 1, and worm 3 can produce axial skew and strike casing 1 in transmission process, and buffer pad 11 can avoid the impact to casing 1 when buffering worm 3 squints, has reduced the noise, has prolonged the life of worm 3, compares with prior art, the utility model discloses can adjust the clearance between worm wheel 2 and the worm 3, transmission precision is high, and is dustproof effectual, and the noise is little.
In the embodiment of the present invention: a plurality of through holes 12 are arranged on the sealing cover 10 at intervals, and a dust screen 13 is arranged on one side of each through hole 12, which is far away from the worm 3.
Through adopting above-mentioned technical scheme, worm wheel 2 and worm 3 can produce the heat at the transmission in-process, and thermal giving off can be accelerated to through-hole 12, and dust screen 13 can avoid the dust to get into casing 1 through-hole 12 and cause the influence to the transmission of worm wheel 2 worm 3.
In the embodiment of the present invention: a plurality of radiating fins 14 are arranged at intervals on one side of the shell 1 far away from the sealing cover 10.
By adopting the technical scheme, the radiating fins 14 can accelerate the dissipation of heat in the shell 1, so that the transmission process is more stable.
In the embodiment of the present invention: be equipped with adjusting spring 15 between mounting bracket 4 and the bearing 5, one side fixed connection of adjusting swivel nut 6 is kept away from with bearing 5 to adjusting spring 15 one end, the adjusting spring 15 other end and 4 lateral walls fixed connection of mounting bracket.
Through adopting above-mentioned technical scheme, adjusting spring 15 is fixed between bearing 5 and mounting bracket 4, enables between worm wheel 2 and the worm 3 interval regulation more stable, also can play a absorbing effect in the use.
In the embodiment of the present invention: the cushion pad 11 is in a non-closed ring shape.
Through adopting above-mentioned technical scheme, there is an opening on the buffer spacer 11 for buffer spacer 11 is difficult for taking place deformation when bearing worm 3 and assaulting, and the cushioning effect is better, and life is longer.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a novel mechanical steering gear of clearance adjustable, includes casing (1), worm wheel (2), worm (3), worm wheel (2) are rotated and are set up in casing (1), worm wheel (2) are connected its characterized in that with worm (3) meshing: two mounting frames (4) are arranged on two sides in the shell (1), the worm (3) is rotatably connected with the mounting frames (4) through bearings (5), an adjusting threaded sleeve (6) is arranged on the mounting frames (4) in a sliding mode, a screw rod (7) is connected with the middle of the adjusting threaded sleeve (6) in a threaded mode, a pre-tightening spring (8) is arranged between the screw rod (7) and the adjusting threaded sleeve (6), one end of the pre-tightening spring (8) is fixedly connected with the threaded end of the screw rod (7), the other end of the pre-tightening spring (8) is fixedly connected with the inner bottom of the adjusting threaded sleeve (6), a rotating adjusting rod (9) is arranged on the outer portion of the shell (1), one end, far away from the adjusting threaded sleeve (6), of the screw rod (7) penetrates through the inner wall of the shell (1) and then extends to the outer portion of the shell (1) to be fixedly connected with the rotating adjusting rod (9), one end, far, the worm gear sealing device is characterized in that a sealing cover (10) is arranged on the side wall of the shell (1) and located at one end of the worm (3), and a buffer gasket (11) is arranged between the sealing cover (10) and the worm (3).
2. The novel mechanical steering gear with adjustable clearance according to claim 1, is characterized in that: a plurality of through holes (12) are arranged on the sealing cover (10) at intervals, and a dust screen (13) is arranged on one side, far away from the worm (3), of each through hole (12).
3. The novel mechanical steering gear with adjustable clearance according to claim 2, is characterized in that: and a plurality of radiating fins (14) are arranged on one side of the shell (1) far away from the sealing cover (10) at intervals.
4. The novel mechanical steering gear with adjustable clearance according to claim 3, is characterized in that: be equipped with between mounting bracket (4) and bearing (5) adjusting spring (15), one side fixed connection who adjusts swivel nut (6) is kept away from with bearing (5) adjusting spring (15) one end, adjusting spring (15) other end and mounting bracket (4) lateral wall fixed connection.
5. The novel mechanical steering gear with adjustable clearance according to claim 4, is characterized in that: the buffer gasket (11) is in a non-closed ring shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021818855.2U CN212775386U (en) | 2020-08-26 | 2020-08-26 | Novel mechanical steering gear with adjustable clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021818855.2U CN212775386U (en) | 2020-08-26 | 2020-08-26 | Novel mechanical steering gear with adjustable clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212775386U true CN212775386U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021818855.2U Active CN212775386U (en) | 2020-08-26 | 2020-08-26 | Novel mechanical steering gear with adjustable clearance |
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| CN (1) | CN212775386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914219A (en) * | 2021-09-17 | 2022-01-11 | 山东高速工程建设集团有限公司 | Frame falling device and method for bridge rapid construction |
-
2020
- 2020-08-26 CN CN202021818855.2U patent/CN212775386U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914219A (en) * | 2021-09-17 | 2022-01-11 | 山东高速工程建设集团有限公司 | Frame falling device and method for bridge rapid construction |
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