CN212985998U - Gear transmission mechanism with adjustable gear clearance - Google Patents
Gear transmission mechanism with adjustable gear clearance Download PDFInfo
- Publication number
- CN212985998U CN212985998U CN202021788492.2U CN202021788492U CN212985998U CN 212985998 U CN212985998 U CN 212985998U CN 202021788492 U CN202021788492 U CN 202021788492U CN 212985998 U CN212985998 U CN 212985998U
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- gear
- sliding
- rotating
- adjusting screw
- transmission mechanism
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Abstract
The utility model relates to a gear transmission mechanism with adjustable gear clearance, which effectively solves the problems that the gear clearance of the gear transmission mechanism can not be adjusted in real time according to the abrasion condition of a gear and the mounting position of a driven gear can not be adjusted steplessly at one time; the technical scheme includes that the device comprises a driving gear and a driven gear, wherein a rotating support is connected to the rear side of the driving gear, a sliding table is connected to the right side of the rotating support in a left-right sliding mode, the sliding table is in threaded fit with a sliding lead screw rotatably connected into the rotating support, an upper sliding frame and a lower sliding frame are fixedly connected to the front end of the sliding table, gear fixing rods are slidably connected into the upper sliding frame and the lower sliding frame up and down, the front ends of the gear fixing rods are rotatably connected with the driven gear, upper adjusting screw rods and lower adjusting screw rods are; simple structure and strong practicability.
Description
Technical Field
The utility model relates to a gear drive technical field specifically is a gear clearance adjustable gear drive.
Background
Gear engagement transmission is widely used in mechanical transmission structures, however, gears are mechanical elements with teeth on rims capable of continuously engaging to transmit motion and power, and are widely used in various mechanical structures. The teeth are each a raised portion of the gear for engagement, the raised portions being generally radially arranged. The teeth on the mating gears contact each other to allow the gears to continue to mesh. However, in practical use, gaps often exist among corresponding tooth parts on the mating gears, the meshing degree is not good enough, the operation of corresponding mechanisms is influenced, and the problems that transmission is blocked or the service life of the friction reduction gear is prolonged can occur due to improper gear gaps.
The existing gear clearance adjusting structure has the following problems:
1. in the process of mounting the gear transmission mechanism, after the clearance between the gears is determined, the subsequent micro-adjustment can not be carried out according to the friction degree of the gears, so that the clearance between the gears is in an optimal state all the time;
2. in the process of adjusting the gear clearance, the driven gear cannot perform adaptive stepless rotation adjustment around the periphery of the driving gear due to the change of the installation position of the gear, and cannot be effectively fixed in time after adjustment.
Therefore, the utility model provides a gear clearance adjustable gear drive solves this problem.
SUMMERY OF THE UTILITY MODEL
To the above circumstances, for overcoming prior art's defect, the utility model provides a gear clearance adjustable gear drive, the effectual gear clearance of having solved once only gear drive adjusts, can not adjust in real time according to the wearing and tearing condition of gear to and can not carry out infinitely variable control to driven gear's mounted position, adjust the problem that can not in time fix to driven gear's position after accomplishing.
The utility model discloses a drive gear, driven gear, its characterized in that, drive gear rear side be connected with the rotation support, rotation support right side slip connect with the sliding stand, the sliding stand with rotate connect in the rotation support slip lead screw thread fit, the sliding stand front end fixedly connected with about carriage, about in carriage slip connect with the gear dead lever from top to bottom, gear dead lever front end with driven gear rotate connect, about carriage internal rotation connect with adjust the screw rod from top to bottom, the gear dead lever with adjust the screw rod thread fit from top to bottom;
a plurality of mounting positioning holes are formed in the right side of the rotating support, and the diameters of the mounting positioning holes are different;
the right end of the sliding screw rod and the upper end of the upper and lower adjusting screw rods can be detachably connected with a rotating handle.
Preferably, the driving gear is rotatably connected with the rotating support, an adjusting screw rod coaxially and rotatably connected with the driving gear is arranged in the rotating support, a sliding sleeve is in threaded fit on the adjusting screw rod, the outer wall of the sliding sleeve is rotatably connected with a plurality of sliding connecting rods, the other end of each sliding connecting rod is rotatably connected with a positioning block, and the positioning block and the rotating support are slidably connected along the diameter direction of the sliding sleeve;
the rear end of the adjusting screw rod is detachably connected with the rotating handle.
Preferably, the rotating handle comprises a rotating disc, one side of the rotating disc is fixedly connected with a connecting shaft, and the other end of the connecting shaft is fixedly connected with a rotating clamping block;
the right end of the sliding screw rod, the upper end of the upper and lower adjusting screw rods and the rear end of the adjusting screw rod are respectively provided with a limiting hole matched with the rotating handle, and a sliding plate with the same shape as the rotating fixture block is connected in the limiting hole in a sliding mode.
Preferably, the positioning block is arc-shaped at one end close to the rotating support, and the positioning block is made of silicon rubber at one end close to the rotating support.
Preferably, the limiting holes are internally provided with sealing plugs which are made of rubber.
The utility model improves the prior gear transmission mechanism, and effectively solves the problem of prolonging the service life of the gear by realizing stepless adjustment on the gear clearance by additionally arranging the sliding lead screw, the upper and lower sliding frames, the sliding table and the upper and lower adjusting screw rods; the problem of stable fixation of the rotating bracket after free rotation is solved by arranging the rotating bracket, the adjusting screw rod, the sliding sleeve and the sliding connecting rod; the problem that a specially-made rotating handle and a matched limiting hole are arranged is effectively solved, and the special adjustment is needed by a specially-assigned person; and the structure is simple and stable, and the universality is extremely high.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
Fig. 3 is a partial schematic view of the fixing structure of the rotating bracket of the present invention.
Fig. 4 is a schematic view of the gear clearance adjusting structure of the present invention.
Fig. 5 is a schematic view showing the matching state of the rotating handle and the limiting hole of the present invention.
Fig. 6 is a perspective view of the rotating handle of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 6. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Embodiment one, the utility model relates to a gear transmission mechanism with adjustable gear clearance, including drive gear 1, driven gear 2, drive gear 1 and driven gear 2 meshing realize gear transmission, its characterized in that, drive gear 1 rear side connect with rotate the support 3, drive gear 1 arrange in rotate the support 3 on, rotate support 3 right side left and right sliding connection have a sliding platform 4, this embodiment provides a left and right sliding connection mode, the upper and lower terminal surface of sliding platform 4 all fixedly connected with T shape slider, rotate support 3 in have set up with T shape spout that T shape slider cooperatees, under the cooperation of T shape slider and T shape spout, sliding platform 4 along rotate support 3 left and right sliding, sliding platform 4 and the sliding screw 5 screw-thread fit of rotating support 3 in connect rotatably, the sliding screw rod 5 rotates to drive the sliding table 4 to slide left and right, the front end of the sliding table 4 is fixedly connected with an upper sliding frame 6 and a lower sliding frame 6, the upper sliding frame 6 and the lower sliding frame 6 are driven to slide left and right synchronously in the process of sliding the sliding table 4 left and right, so that the installation and assembly of the gear are convenient, a gear fixing rod 7 is connected in the upper sliding frame 6 in a vertical sliding manner, the front end of the gear fixing rod 7 is cylindrical, the rear end of the gear fixing rod is rectangular, one end of the rectangular shape is matched with the upper sliding frame 6 and the lower sliding frame 6, the front end of the gear fixing rod 7 is rotationally connected with the driven gear 2, an upper adjusting screw rod 8 and a lower adjusting screw rod 8 are rotationally connected in the upper sliding frame 6 and the lower sliding frame 6, the gear fixing rod 7 is in threaded fit with the upper adjusting screw rod, the gear fixing rod 7 slides up and down to drive the driven gear 2 to slide up and down, and the meshing state of the driving gear 1 and the driven gear 2 and the inter-tooth gap are adjusted;
the right side of the rotating bracket 3 is provided with a plurality of mounting positioning holes 9, the apertures of the mounting positioning holes 9 are different, the adaptability of the rotating bracket 3 in the mounting process is enhanced through the mounting holes with different apertures, and the rotating bracket can be fixed through screws with different positions or different apertures;
the right end of the sliding screw rod 5 and the upper end of the up-down adjusting screw rod 8 can be detachably connected with a rotating handle 10, and the sliding screw rod 5 and the up-down adjusting screw rod 8 can be rotated through the detachable rotating handle 10;
this embodiment is when concrete implementation, at first will rotate the support 3 and fix to suitable position, then will drive gear 1 install to rotate the support 3 on, through twist grip 10 drive sliding platform 4 to the left side slip, sliding platform 4 to the left side slip pass through upper and lower sliding support, gear fixing pole 7 drive driven gear 2 synchronous slip to with drive gear 1 mesh mutually, after adjusting to suitable position, through twist grip 10 rotate upper and lower adjusting screw 8 drive gear fixing pole 7 slide from top to bottom, to the tooth side clearance of drive gear 1 and driven gear 2 adjust again, after gear drive structure operation one end time, because the wearing and tearing of transmission process can lead to the gear clearance to change, lead to appearing the unstable accurate problem of transmission in the higher gear drive system of accuracy requirement, and correspondingly adjusting the meshing degree of the gear and the side tooth clearance by rotating the sliding screw rod 5 and the up-down adjusting screw rod 8.
In the second embodiment, on the basis of the first embodiment, in the process of installing the gear transmission mechanism, because the position of the driven gear 2 needs to be rotationally adjusted around the driving gear 1 due to the uncertainty of the power input and output positions, the present embodiment provides a structure for adjusting the position of the driven gear 2, specifically, the driving gear 1 is rotationally connected with the rotating bracket 3, the rotating bracket 3 rotates around the driving gear 1, when the position of the driven gear 2 needs to be adjusted, the rotating bracket 3 is rotated to enable the rotating bracket 3 to rotate to a proper position around the driving gear 1, an adjusting screw 11 coaxially and rotationally connected with the driving gear 1 is arranged in the rotating bracket 3, a sliding sleeve 12 is screwed on the adjusting screw 11, the adjusting screw 11 drives the sliding sleeve 12 to slide back and forth in the rotating process, the outer wall of the sliding sleeve 12 is rotatably connected with a plurality of sliding connecting rods 13, the other end of each sliding connecting rod 13 is rotatably connected with a positioning block 14, the positioning blocks 14 are slidably connected with the rotating bracket 3 along the diameter direction of the sliding sleeve 12, and the sliding connecting rods 13 drive the positioning blocks 14 to slide along the diameter direction of the sliding sleeve 12 in the back and forth sliding process of the sliding sleeve 12, so that the rotating bracket 3 is locked and unlocked;
the rear end of the adjusting screw rod 11 is detachably connected with the rotating handle 10, and the adjusting screw rod 11 rotates through the rotating handle 10.
In a third embodiment, on the basis of the second embodiment, in a process of adjusting a gear clearance, a professional worker is required to determine an adjustment degree, so as to avoid an abnormal adjustment by a non-professional person, specifically, referring to fig. 6, the rotating handle 10 includes a rotating disc 15, friction grains are formed on an outer wall of the rotating disc 15, friction force is increased, and a slipping phenomenon occurring in the process of rotating the rotating handle 10 is avoided, a connecting shaft 16 is fixedly connected to one side of the rotating disc 15, a rotating fixture block 17 is fixedly connected to the other end of the connecting shaft 16, the rotating fixture block 17 is in a special shape, and in the present embodiment, the rotating fixture block 17 may be in a hexahedron or tetrahedron shape;
the right end of the sliding screw 5, the upper end of the up-and-down adjusting screw 8 and the rear end of the adjusting screw 11 are all provided with a limiting hole 18 matched with the rotating handle 10, a sliding plate 19 with the same shape as the rotating block 17 is connected in the limiting hole 18 in a sliding manner, the embodiment provides a sliding connection mode, the sliding plate 19 is connected with the limiting hole 18 through a spring, when the rotating handle 10 is inserted into the limiting hole 18, the rotating block 17 pushes the sliding plate 19 to slide, so that the rotating block 17 is matched with the limiting hole 18, and the rotating handle 10 is rotated while the sliding screw 5 or the up-and-down adjusting screw 8 or the adjusting screw 11 is driven to rotate.
In a fourth embodiment, on the basis of the first embodiment, when the positioning block 14 is used to position and fix the rotating bracket 3, the positioning block 14 and the rotating bracket 3 may be in point contact or line contact, which may increase the wear of the positioning block 14 or the rotating bracket 3, so that this embodiment provides a way to increase the contact area between the positioning block 14 and the rotating bracket 3, specifically, one end of the positioning block 14 close to the rotating bracket 3 is in a circular arc shape, the circular arc-shaped positioning block 14 and the rotating bracket 3 are completely attached, which increases the friction force between the positioning block 14 and the rotating bracket 3, and one end of the positioning block 14 close to the rotating bracket 3 is made of a silicon rubber material, which increases the friction force between the positioning block 14 and the rotating bracket 3.
In the fifth embodiment, on the basis of the fourth embodiment, in order to avoid that external impurities enter the limiting hole 18 and influence the matching use of the limiting hole 18 and the rotating handle 10 to cause rotation failure, sealing plugs 20 are respectively arranged in the limiting holes 18, the sealing plugs 20 are made of rubber, and the limiting holes 18 are sealed by the sealing plugs 20.
When the device is used, firstly, the driving gear 1 is fixed to a proper position, then the rotating bracket 3 is rotated to a proper position, then the piston on the adjusting screw rod 11 is pulled out, the rotating handle 10 is inserted into the adjusting screw rod 11, the adjusting screw rod 11 is rotated, the positioning block 14 is driven to slide through the sliding sleeve 12 and the sliding connecting rod 13 to realize fixed support of the rotating bracket 3, then the sliding table 4 is driven to slide to the left side through the rotation of the sliding screw rod 5 through the matching of the rotating handle 10 and the limiting hole 18 on the sliding screw rod 5, the sliding table 4 slides to the left side, the driven gear 2 is driven to synchronously slide to be meshed with the driving gear 1 through the up-down sliding bracket and the gear fixing rod 7, and after the device is adjusted to a proper position, the rotating handle 10 is matched with the limiting hole 18 on the up-down adjusting screw rod to drive the gear fixing rod 7 to slide up, the gear backlash of the driving gear 1 and the driven gear 2 is adjusted again, after the gear transmission structure operates for a period of time, the gear backlash is changed due to the abrasion in the transmission process, the problem of unstable and accurate transmission in a gear transmission system with higher accuracy requirement is caused, and the gear meshing degree and the gear backlash are adjusted correspondingly by rotating the sliding lead screw 5 and adjusting the screw 8 up and down.
The utility model improves the prior gear transmission mechanism, and effectively solves the problem of prolonging the service life of the gear by realizing stepless adjustment on the gear clearance by additionally arranging the sliding lead screw, the upper and lower sliding frames, the sliding table and the upper and lower adjusting screw rods; the problem of stable fixation of the rotating bracket after free rotation is solved by arranging the rotating bracket, the adjusting screw rod, the sliding sleeve and the sliding connecting rod; the problem that a specially-made rotating handle and a matched limiting hole are arranged is effectively solved, and the special adjustment is needed by a specially-assigned person; and the structure is simple and stable, and the universality is extremely high.
Claims (5)
1. A gear transmission mechanism with adjustable gear clearance comprises a driving gear (1) and a driven gear (2), it is characterized in that the rear side of the driving gear (1) is connected with a rotating bracket (3), the right side of the rotating bracket (3) is connected with a sliding table (4) in a left-right sliding way, the sliding table (4) is in threaded fit with a sliding lead screw (5) which is rotatably connected in the rotating bracket (3), the front end of the sliding table (4) is fixedly connected with an upper sliding frame and a lower sliding frame (6), a gear fixing rod (7) is connected in the upper and lower sliding frames (6) in an up-and-down sliding way, the front end of the gear fixing rod (7) is rotationally connected with the driven gear (2), the upper and lower sliding frames (6) are connected with upper and lower adjusting screw rods (8) in a rotating way, the gear fixing rod (7) is in threaded fit with the upper and lower adjusting screw rod (8);
a plurality of mounting positioning holes (9) are formed in the right side of the rotating support (3), and the diameters of the mounting positioning holes (9) are different;
the right end of the sliding screw rod (5) and the upper end of the up-down adjusting screw rod (8) are detachably connected with a rotating handle (10).
2. The gear transmission mechanism with the adjustable gear clearance according to claim 1, characterized in that the driving gear (1) is rotatably connected with the rotating support (3), an adjusting screw (11) coaxially and rotatably connected with the driving gear (1) is arranged in the rotating support (3), a sliding sleeve (12) is in threaded fit with the adjusting screw (11), a plurality of sliding connecting rods (13) are rotatably connected with the outer wall of the sliding sleeve (12), a positioning block (14) is rotatably connected with the other end of each sliding connecting rod (13), and the positioning block (14) is slidably connected with the rotating support (3) along the diameter direction of the sliding sleeve (12);
the rear end of the adjusting screw rod (11) is detachably connected with the rotating handle (10).
3. The gear transmission mechanism with the adjustable gear clearance according to claim 2, characterized in that the rotating handle (10) comprises a rotating disc (15), one side of the rotating disc (15) is fixedly connected with a connecting shaft (16), and the other end of the connecting shaft (16) is fixedly connected with a rotating clamping block (17);
the sliding device is characterized in that the right end of the sliding lead screw (5), the upper end of the upper and lower adjusting screw (8) and the rear end of the adjusting screw (11) are respectively provided with a limiting hole (18) matched with the rotating handle (10), and the limiting holes (18) are internally and slidably connected with sliding plates (19) with the same shape as the rotating clamping blocks (17).
4. The gear transmission mechanism with the adjustable gear clearance according to claim 2, characterized in that one end of the positioning block (14) close to the rotating bracket (3) is arc-shaped, and one end of the positioning block (14) close to the rotating bracket (3) is made of silicon rubber.
5. A gear transmission mechanism with adjustable gear clearance according to claim 3, characterized in that sealing plugs (20) are arranged in the limiting holes (18), and the sealing plugs (20) are made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788492.2U CN212985998U (en) | 2020-08-25 | 2020-08-25 | Gear transmission mechanism with adjustable gear clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788492.2U CN212985998U (en) | 2020-08-25 | 2020-08-25 | Gear transmission mechanism with adjustable gear clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212985998U true CN212985998U (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021788492.2U Expired - Fee Related CN212985998U (en) | 2020-08-25 | 2020-08-25 | Gear transmission mechanism with adjustable gear clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212985998U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262709A (en) * | 2021-04-29 | 2021-08-17 | 河钢股份有限公司承德分公司 | Online restoration structure of dust remover biax humidification mixer |
| CN113565950A (en) * | 2021-08-09 | 2021-10-29 | 无锡京华重工装备制造有限公司 | Anti-backlash structure with meshing clearance measuring function for C shaft of vertical lathe |
| CN114570755A (en) * | 2022-04-22 | 2022-06-03 | 茅台学院 | Soil remediation treatment device |
-
2020
- 2020-08-25 CN CN202021788492.2U patent/CN212985998U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262709A (en) * | 2021-04-29 | 2021-08-17 | 河钢股份有限公司承德分公司 | Online restoration structure of dust remover biax humidification mixer |
| CN113565950A (en) * | 2021-08-09 | 2021-10-29 | 无锡京华重工装备制造有限公司 | Anti-backlash structure with meshing clearance measuring function for C shaft of vertical lathe |
| CN114570755A (en) * | 2022-04-22 | 2022-06-03 | 茅台学院 | Soil remediation treatment device |
| CN114570755B (en) * | 2022-04-22 | 2023-08-22 | 茅台学院 | Soil remediation processing device |
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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: 20210416 Termination date: 20210825 |
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| CF01 | Termination of patent right due to non-payment of annual fee |