CN216555192U - Idler wheel structure for clamping pre-tightening anti-backlash gear - Google Patents
Idler wheel structure for clamping pre-tightening anti-backlash gear Download PDFInfo
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- CN216555192U CN216555192U CN202123283299.0U CN202123283299U CN216555192U CN 216555192 U CN216555192 U CN 216555192U CN 202123283299 U CN202123283299 U CN 202123283299U CN 216555192 U CN216555192 U CN 216555192U
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- 230000008030 elimination Effects 0.000 claims description 10
- 238000003379 elimination reaction Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses an idler wheel structure for clamping a pre-tightening clearance-eliminating gear, which comprises a connecting disc, a mounting shaft body, a clearance-eliminating assembly, an idler wheel assembly and a rack, wherein the mounting shaft body is connected to the middle part of the connecting disc; the idler subassembly includes main shaft, limit gear and stop nut, and limit gear is connected with the meshing of anti-backlash subassembly, and stop nut threaded connection is in the one end of main shaft. The utility model utilizes the arrangement mode that the anti-backlash component and the idle wheel component are matched, the fixed gear and the floating gear are meshed with the rack and are also meshed with the limit gear, when the rack is meshed with the fixed gear and the floating gear, the limit gear can correspondingly follow up, and when the rack is drawn out to be disconnected from the fixed gear and the floating gear, the limit gear is continuously meshed with the fixed gear and the floating gear, so that the reverse torque of the floating gear cannot disappear, the anti-backlash effect is still realized, and the normal use of the floating gear and the torsion spring is not influenced.
Description
Technical Field
The utility model relates to the field of idler wheel structures, in particular to an idler wheel structure for clamping a pre-tightening anti-backlash gear.
Background
The electric actuator is an essential important part in an automatic control system, the electric actuator is used for receiving a control signal sent by a controller, the actuator can be divided into three types of pneumatic, hydraulic and electric according to the scheduled energy form, and the electric actuator is a multi-rotation type actuating mechanism driven by electric power and is one of the most common and most reliable actuating mechanism types.
When the electric drive, generally all drive the gear through the motor and move, then make the gear promote the rack and carry out rectilinear motion, all need carry out pretension installation in advance for the gear structure that disappears to the rack can't be taken out, because in case the rack is taken out, pretension gear will lose efficacy, has so restricted installation and dismantling greatly.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to an idler structure for clamping a pre-tensioned anti-backlash gear, which solves the above-mentioned problems of the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: an idler wheel structure for clamping a pre-tightening anti-backlash gear comprises a connecting disc, a mounting shaft body, an anti-backlash assembly, an idler wheel assembly and a rack, wherein the mounting shaft body is connected to the middle of the connecting disc, the anti-backlash assembly is connected with the mounting shaft body in an inserting mode, the idler wheel assembly is meshed with one side of the anti-backlash assembly, and the rack is meshed with the bottom of the anti-backlash assembly;
the idler wheel assembly comprises a main shaft, a limiting gear and a limiting nut, the main shaft is movably inserted into the middle of the limiting gear, the limiting gear is meshed with the anti-backlash assembly, and the limiting nut is connected to one end of the main shaft in a threaded mode.
Preferably, the installation axis body includes mount pad and connecting axle, mount pad fixed mounting is in the middle part of connection pad, the connecting axle is connected in the one end of mount pad.
Preferably, the anti-backlash assembly comprises a fixed gear, a floating gear and a torsion spring, the fixed gear is fixedly inserted outside the connecting shaft, the floating gear is movably inserted outside the connecting shaft, the torsion spring is connected between the fixed gear and the floating gear, and the fixed gear and the floating gear are both meshed with the rack.
Preferably, the torsion spring is movably sleeved outside the connecting shaft, one end of the torsion spring is fixedly connected with the fixed gear, and the other end of the torsion spring is connected with the floating gear.
Preferably, a slot is formed in one side of the floating gear, the torsion spring is located inside the slot, and the other end of the torsion spring is fixedly connected with the inner wall of the slot.
Preferably, a flat key is fixedly installed at the top of the connecting shaft, a key groove is formed in the fixed gear, and the flat key is matched with an inner cavity of the key groove.
Preferably, one end of the rack is connected with an actuating piece.
The utility model has the technical effects and advantages that:
(1) the utility model utilizes the arrangement mode that the anti-backlash component and the idle wheel component are matched, the fixed gear and the floating gear are meshed with the rack and are also meshed with the limit gear, when the rack is meshed with the fixed gear and the floating gear, the limit gear can correspondingly follow up, and when the rack is drawn out to be disconnected from the fixed gear and the floating gear, the limit gear is continuously meshed with the fixed gear and the floating gear, so that the reverse torsion of the floating gear cannot disappear, the anti-backlash effect is still realized, and the normal use of the floating gear and the torsion spring is not influenced;
(2) according to the utility model, the floating gear is sleeved on the connecting shaft and is connected with the fixed gear through the torsion spring by utilizing the arrangement mode that the floating gear is matched with the torsion spring, and the torsion spring is in a twisted pre-tightening state through the meshing between the floating gear and the rack, so that a return clearance between the fixed gear and the rack can be eaten, the movement effect of the rack is more stable, and the linear movement effect of an executing piece is better.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic front view of the present invention.
FIG. 3 is a schematic side view of the present invention.
In the figure: 1. a connecting disc; 2. mounting a shaft body; 21. a mounting seat; 22. a connecting shaft; 3. a backlash eliminating assembly; 31. fixing a gear; 32. a floating gear; 33. a torsion spring; 4. an idler assembly; 41. a main shaft; 42. a limit gear; 43. a limit nut; 5. a rack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides an idler wheel structure for clamping a pre-tightening clearance elimination gear as shown in figures 1-3, which comprises a connecting disc 1, a mounting shaft body 2, a clearance elimination assembly 3, an idler wheel assembly 4 and a rack 5, wherein the mounting shaft body 2 is connected to the middle part of the connecting disc 1, the clearance elimination assembly 3 is in penetrating connection with the mounting shaft body 2, the idler wheel assembly 4 is meshed with one side of the clearance elimination assembly 3, the rack 5 is meshed with the bottom of the clearance elimination assembly 3, one end of the rack 5 is connected with an execution part, the clearance elimination assembly 3 is conveniently driven to run through the connection of the mounting shaft body 2, the idler wheel assembly 4 is convenient to be meshed with the clearance elimination assembly 3, the position of the clearance elimination assembly 3 is limited, and the rack 5 is pushed through the meshing between the clearance elimination assembly 3 and the rack 5 so that the rack 5 can do horizontal linear motion.
Idler subassembly 4 includes main shaft 41, limit gear 42 and stop nut 43, main shaft 41 activity interlude is in limit gear 42's middle part, limit gear 42 is connected with the meshing of anti-backlash subassembly 3, stop nut 43 threaded connection is in main shaft 41's one end, be convenient for carry on spacingly to limit gear 42's operation through main shaft 41, make limit gear 42 can the dead axle rotate, be convenient for carry on spacingly to limit gear 42's rotation through stop nut 43, prevent that limit gear 42 from moving on main shaft 41 at will.
The installation axis body 2 includes mount pad 21 and connecting axle 22, mount pad 21 fixed mounting is in the middle part of connection pad 1, connecting axle 22 is connected in the one end of mount pad 21, the outside of connecting axle 22 is located to torsional spring 33 activity cover, the one end and the fixed gear 31 fixed connection of torsional spring 33, the other end and the floating gear 32 of torsional spring 33 are connected, be convenient for connect fixed gear 31 and floating gear 32 through connecting axle 22, be convenient for drive fixed gear 31 through connecting axle 22 and rotate, it is convenient for carry on spacingly to the rotation of floating gear 32 through connecting axle 22, make floating gear 32 can carry out the rotation on connecting axle 22.
The anti-backlash component 3 comprises a fixed gear 31, a floating gear 32 and a torsion spring 33, wherein the fixed gear 31 is fixedly inserted outside the connecting shaft 22, the floating gear 32 is movably inserted outside the connecting shaft 22, the torsion spring 33 is connected between the fixed gear 31 and the floating gear 32, the fixed gear 31 and the floating gear 32 are both meshed with the rack 5, the floating gear 32 is sleeved on the connecting shaft 22 and is connected with the fixed gear 31 through the torsion spring 33, and through the meshing between the floating gear 32 and the rack 5, the torsion spring 33 is in a twisted pre-tightening state at the moment, so that a return clearance between the fixed gear 31 and the rack 5 can be eaten, the movement effect of the rack 5 is more stable, and the linear movement effect of an executing part is better.
The fluting has been seted up to one side of floating gear 32, is convenient for through the fluting to torsional spring 33's assembly, and torsional spring 33 is located the grooved inside, torsional spring 33's the other end and grooved inner wall fixed connection, and connecting axle 22's top fixed mounting has the parallel key, has seted up the keyway on the fixed gear 31, and the inner chamber of parallel key and keyway is mutually supported, through the cooperation between parallel key and the keyway, is convenient for carry on spacingly to the relative position between connecting axle 22 and the fixed gear 31.
The working principle of the utility model is as follows:
when the connecting disc 1 is driven by an external motor to operate, the connecting disc 1 is convenient to drive the mounting seat 21 and the connecting shaft 22 to synchronously fix the shaft and rotate, then the fixed gear 31 and the floating gear 32 are meshed with the rack 5 and are also meshed with the limit gear 42, the limit gear 42 can freely rotate on the main shaft 41, when the rack 5 is meshed with the fixed gear 31 and the floating gear 32, the limit gear 42 can correspondingly follow up, when the rack 5 is drawn out to be disconnected from being meshed with the fixed gear 31 and the floating gear 32, the limit gear 42 is continuously meshed with the fixed gear 31 and the floating gear 32, the reverse torsion of the floating gear 32 is ensured not to disappear, and the function of eliminating the return clearance is still achieved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (7)
1. The idler wheel structure for clamping the pre-tightening anti-backlash gear comprises a connecting disc (1), a mounting shaft body (2), an anti-backlash assembly (3), an idler wheel assembly (4) and a rack (5), and is characterized in that the mounting shaft body (2) is connected to the middle of the connecting disc (1), the anti-backlash assembly (3) is connected with the mounting shaft body (2) in a penetrating manner, the idler wheel assembly (4) is meshed with one side of the anti-backlash assembly (3), and the rack (5) is meshed with the bottom of the anti-backlash assembly (3);
the idle wheel assembly (4) comprises a main shaft (41), a limiting gear (42) and a limiting nut (43), the main shaft (41) is movably inserted in the middle of the limiting gear (42), the limiting gear (42) is meshed with the anti-backlash assembly (3), and the limiting nut (43) is connected to one end of the main shaft (41) in a threaded mode.
2. The idler structure for clamping the pre-tightening anti-backlash gear according to claim 1, wherein the mounting shaft body (2) comprises a mounting seat (21) and a connecting shaft (22), the mounting seat (21) is fixedly mounted in the middle of the connecting disc (1), and the connecting shaft (22) is connected to one end of the mounting seat (21).
3. The idler structure for jamming pre-tightened backlash-eliminating gears according to claim 1, wherein the backlash-eliminating assembly (3) comprises a fixed gear (31), a floating gear (32) and a torsion spring (33), the fixed gear (31) is fixedly inserted outside the connecting shaft (22), the floating gear (32) is movably inserted outside the connecting shaft (22), the torsion spring (33) is connected between the fixed gear (31) and the floating gear (32), and the fixed gear (31) and the floating gear (32) are both in meshed connection with the rack (5).
4. The idler wheel structure for clamping the pre-tightening anti-backlash gear according to claim 3, wherein the torsion spring (33) is movably sleeved outside the connecting shaft (22), one end of the torsion spring (33) is fixedly connected with the fixed gear (31), and the other end of the torsion spring (33) is connected with the floating gear (32).
5. The idler wheel structure for clamping the pre-tightening backlash elimination gear according to claim 3, wherein one side of the floating gear (32) is provided with a groove, the torsion spring (33) is positioned in the groove, and the other end of the torsion spring (33) is fixedly connected with the inner wall of the groove.
6. The idler structure for clamping the pre-tightening anti-backlash gear according to claim 3, wherein a flat key is fixedly installed at the top of the connecting shaft (22), a key groove is formed in the fixed gear (31), and the flat key is matched with an inner cavity of the key groove.
7. The idler structure for jamming preloaded backlash-eliminating gears according to claim 1, wherein an actuator is connected to one end of said rack (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123283299.0U CN216555192U (en) | 2021-12-24 | 2021-12-24 | Idler wheel structure for clamping pre-tightening anti-backlash gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123283299.0U CN216555192U (en) | 2021-12-24 | 2021-12-24 | Idler wheel structure for clamping pre-tightening anti-backlash gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555192U true CN216555192U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123283299.0U Active CN216555192U (en) | 2021-12-24 | 2021-12-24 | Idler wheel structure for clamping pre-tightening anti-backlash gear |
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| CN (1) | CN216555192U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750763A (en) * | 2022-11-17 | 2023-03-07 | 中国航空工业集团公司洛阳电光设备研究所 | Two-stage anti-backlash gear transmission mechanism with small modulus and large transmission ratio |
| CN116379116A (en) * | 2021-12-24 | 2023-07-04 | 苏州需要智能技术有限公司 | An idler structure for locking pre-tightened anti-backlash gear |
-
2021
- 2021-12-24 CN CN202123283299.0U patent/CN216555192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116379116A (en) * | 2021-12-24 | 2023-07-04 | 苏州需要智能技术有限公司 | An idler structure for locking pre-tightened anti-backlash gear |
| CN115750763A (en) * | 2022-11-17 | 2023-03-07 | 中国航空工业集团公司洛阳电光设备研究所 | Two-stage anti-backlash gear transmission mechanism with small modulus and large transmission ratio |
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