Gear surface treatment device for speed reducer

Abstract

The application discloses a gear surface treatment device of a speed reducer, which comprises a gear fixing assembly, a rotating arm assembly and a gear polishing assembly, the rotating arm assembly and the gear fixing assembly are arranged on the side of the gear polishing assembly, the rotating arm assembly comprises a base, a first rotating drive mechanism is connected to the base, the first rotating drive mechanism is vertically connected with a first rotating arm, a second rotating arm is rotationally connected to the first rotating arm, and a second rotating drive mechanism is fixedly connected to the first rotating arm, the second rotating drive mechanism is connected with the second rotating arm, a supporting table is connected to the second rotating arm, the gear polishing assembly is connected to the supporting table, and the gear polishing assembly is driven by the first rotating arm to rotate and adjust in two different directions. The scheme can quickly adjust the position of the gear polishing assembly and process the surfaces of different positions of the gear.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of gears, and particularly relates to a surface treatment device for gears of a speed reducer. BACKGROUND

[0002] A speed reducer matches rotational speed and transmits torque between a prime mover and a working machine or an actuator, and is widely used in modern machines. The speed reducer can be divided into two categories of general-purpose speed reducers and special-purpose speed reducers, and the design, manufacturing and use characteristics of the two categories are different. When selecting a speed reducer, the most suitable speed reducer should be selected according to the selection conditions, technical parameters of the working machine, performance of the power machine, economy and other factors, and the external dimensions, transmission efficiency, load capacity, mass and price of different types and varieties of speed reducers are compared.

[0003] A speed reducer production speed reducer gear surface treatment device is disclosed in Chinese Patent No. 2022218419202, which comprises a base, a stacking positioning roller shaft for stacking gear workpieces in batches, a driven poking assembly composed of a connecting cylinder, an upper poking tooth disc, a lower poking tooth disc and a positioning rotating head, a driving poking gear for driving the driven poking assembly to rotate, and a polishing assembly capable of polishing through the driven poking assembly. The scheme uses the stacking positioning roller shaft to stack gear workpieces in batches, uses the polishing assembly to deburr the inner wall of the gear edge groove, and uses the poking system composed of the driven poking assembly and the driving poking gear to switch the gear workpiece to be machined.

[0004] The above technical scheme can continuously process the burrs of the gear, but since the burr positions of the gear are different, the above scheme needs to adjust the gear position constantly during processing, which prolongs the working time and is not conducive to improving the processing rate. SUMMARY

[0005] In order to solve the above problems, the application provides a gear surface treatment device of a speed reducer, which comprises a gear fixing assembly, a rotating arm assembly and a gear polishing assembly, the gear polishing assembly is arranged above the rotating arm assembly, the gear fixing assembly is arranged at the side of the gear polishing assembly, the rotating arm assembly comprises a base, a first rotating drive mechanism is connected to the base, a first rotating arm is vertically connected to the first rotating drive mechanism, a second rotating arm is rotatably connected to the first rotating arm, and a second rotating drive mechanism is fixedly connected to the first rotating arm, the second rotating drive mechanism is connected to the second rotating arm, a supporting table is connected to the second rotating arm, the gear polishing assembly is connected to the supporting table, and the gear polishing assembly is driven by the first rotating arm to rotate and adjust in two different directions.

[0006] Preferably, a third rotating mechanism is arranged in the second rotating arm, an output end of the third rotating mechanism is connected to the bottom of the supporting table, and the second rotating arm drives the gear polishing assembly to flip and adjust in a horizontal and vertical state.

[0007] Preferably, a gear box is connected to the side of the first rotating arm, a sleeve is connected to the bottom of the second rotating arm, the sleeve of the second rotating arm is rotatably connected to the first rotating arm, a limiting convex ring is further arranged on the first rotating arm, one end of the sleeve abuts against the limiting convex ring, the other end of the sleeve abuts against the side wall of the gear box, an external gear is arranged on the outer circumferential surface of the side of the sleeve close to the gear box, the second rotating drive mechanism comprises a second rotating motor fixed on the gear box and a drive gear connected to the output end of the second rotating motor, and the drive gear is engaged with the external gear.

[0008] Preferably, the gear polishing assembly comprises a gear polishing motor, a shaft connecting seat and a polishing head, an output shaft is connected to the output end of the polishing motor, the output shaft is connected to the polishing head through the shaft connecting seat, a fluid pump is arranged on the top of the shaft connecting seat, a shaft connecting cavity is arranged in the shaft connecting seat, a shaft sleeve is fixedly arranged in the shaft connecting cavity, one end of the shaft sleeve extends outward through the shaft connecting cavity and is wrapped outside the output shaft, a fluid cavity is formed between the shaft sleeve and the output shaft, a connecting groove is arranged on the front end of the output shaft, a connecting rod is arranged on one side of the polishing head, the connecting rod is slidably arranged in the connecting groove, a strip-shaped limiting groove is arranged on the side wall of the connecting groove, a strip-shaped sliding block is arranged on the side wall of the connecting rod, the strip-shaped sliding block is slidably arranged in the strip-shaped limiting groove, an expansion cavity is further formed between the connecting groove and the tail of the connecting rod, the expansion cavity is in communication with the fluid cavity, and the output end of the fluid pump is in communication with the fluid cavity through the shaft connecting seat and the shaft sleeve.

[0009] Preferably, one end of the output shaft located in the shaft cavity is provided with a blade, one end of the shaft sleeve located in the shaft cavity is a large-diameter part, and the diameter of the fluid cavity in the large-diameter part is larger than that of the fluid cavity at other positions.

[0010] Preferably, a lip seal is arranged between the bushing and the output shaft.

[0011] Preferably, the polishing head is in a conical structure, and the surface of the polishing head is provided with a thread-like cutting surface, and the surface of the polishing head is further provided with a longitudinal cutting groove.

[0012] Preferably, the connecting rod is provided with a limiting cutting surface.

[0013] Preferably, the gear fixing assembly comprises a fixing seat, the fixing seat is provided with a fixing platform, the top of the fixing seat is provided with a hydraulic cylinder, and the output end of the hydraulic cylinder is connected with a pressing plate downward.

[0014] Preferably, the side edge of the fixing platform is connected with a locking mechanism, the locking mechanism comprises a locking ring, and the side wall of the locking ring is provided with a plurality of locking bolts.

[0015] The present application has the following advantages:

[0016] 1. The rotating arm assembly is arranged in the scheme, the first rotating arm drives the gear polishing assembly to rotate and adjust in two mutually perpendicular directions, and the second rotating arm drives the gear polishing assembly to overturn and adjust in a horizontal and vertical state, so that multi-directional adjustment of the gear polishing assembly can be realized, different positions of the gear can be quickly processed, and the processing rate is improved.

[0017] 2. The polishing motor can first apply impact force to the burr by impact when processing, so that the burr is loosened and can be quickly cleaned during polishing, and the surface treatment rate is further improved.

[0018] 3. The gear fixing assembly in the scheme is provided with a locking mechanism, which can improve the stability of the gear. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure diagram of the present application;

[0020] Figure 2 It is a gear box structure diagram of the present application;

[0021] Figure 3 It is a shaft connecting seat structure diagram of the present application;

[0022] Figure 4 It is a polishing head structure diagram of the present application;

[0023] Figure 5 It is a locking mechanism structure diagram of the present application.

[0024] In the figure: 1 gear fixing assembly, 2 rotating arm assembly, 3 gear polishing assembly, 4 base, 5 first rotating drive mechanism, 6 first rotating arm, 7 second rotating arm, 8 second rotating drive mechanism, 9 support table, 10 third rotating mechanism, 11 gear box, 12 sleeve, 13 limiting convex ring, 14 external gear, 15 drive gear, 16 polishing motor, 17 connecting shaft seat, 18 polishing head, 19 fluid pump, 20 connecting shaft cavity, 21 shaft sleeve, 22 fluid cavity, 23 connecting groove, 24 strip-shaped limiting groove, 25 strip-shaped sliding block, 26 expansion cavity, 27 blade, 28 lip seal, 29 cutting groove, 30 limiting cutting surface, 31 fixed seat, 32 fixed platform, 33 hydraulic cylinder, 34 pressing plate, 35 locking ring, 36 locking bolt, 37 connecting rod, 38 output shaft. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application.

[0026] Embodiment 1

[0027] As shown in the figure, a gear surface treatment device of a speed reducer comprises a gear fixing assembly 1, a rotating arm assembly 2 and a gear polishing assembly 3. The gear polishing assembly 3 is arranged above the rotating arm assembly 2, and the gear fixing assembly 1 is arranged at the side of the gear polishing assembly 3. The gear to be polished is fixed by the gear fixing assembly 1, and the gear is polished by the gear polishing assembly 3. The rotating arm assembly 2 drives the gear polishing assembly 3 to adjust the position. Figures 1-4

[0028] The rotating arm assembly 2 comprises a base 4, and the base 4 is connected with a first rotating drive mechanism 5. The first rotating drive mechanism 5 is vertically connected with a first rotating arm 6. The first rotating drive mechanism 5 is composed of a first rotating motor. The output end of the first rotating motor is connected with the end of the first rotating arm 6. By starting the first rotating motor, the first rotating arm 6 can be driven to rotate. The first rotating arm 6 is rotatably connected with a second rotating arm 7 and fixedly connected with a second rotating drive mechanism 8. The second rotating drive mechanism 8 is connected with the second rotating arm 7, and the second rotating drive mechanism 8 can drive the second rotating arm 7 to rotate. When the first rotating arm 6 rotates, the second rotating arm 7 also rotates with the first rotating arm 6.

[0029] ​The first rotating arm 6 is fixedly connected with a gear box 11 on the side, the second rotating arm 7 is connected with a sleeve 12 on the bottom, the sleeve 12 of the second rotating arm 7 is rotationally connected on the first rotating arm 6, the first rotating arm 6 is further provided with a limiting convex ring 13, one end of the sleeve 12 abuts against the limiting convex ring 13, the other end of the sleeve 12 abuts against the side wall of the gear box 11, the outer circumferential surface of the sleeve 12 close to the gear box 11 is provided with an external gear 14, the second rotating driving mechanism comprises a second rotating motor fixed on the gear box 11 and a driving gear 15 connected with the output end of the second rotating motor, the driving gear 15 is engaged with the external gear 14. When the second rotating motor is started, the driving gear 15 will drive the external gear 14 to rotate, under the action of the external gear 14, the sleeve 12 drives the second rotating arm 7 to rotate.

[0030] The second rotating arm 7 is connected with a supporting table 9, the supporting table 9 is connected with a gear polishing assembly 3, the first rotating arm 6 drives the gear polishing assembly 3 to rotate and adjust in two different directions. The third rotating mechanism 10 is arranged in the second rotating arm 7, which is a third rotating motor, the output end of the third rotating motor is connected with the bottom of the supporting table 9, through the second rotating arm 7, the gear polishing assembly 3 can be adjusted to flip in horizontal and vertical states.

[0031] The gear polishing assembly 3 comprises a gear polishing motor 16, a shaft connecting base 17 and a polishing head 18, the output shaft 38 of the polishing motor 16 is connected with the polishing head 18 through the shaft connecting base 17, the top of the shaft connecting base 17 is provided with a fluid pump 19, the inside of the shaft connecting base 17 is provided with a shaft connecting cavity 20, the shaft connecting cavity 20 is fixedly installed with a shaft sleeve 21, one end of the shaft sleeve 21 extends outwardly through the shaft connecting cavity 20 and wraps outside the output shaft 38, the fluid cavity 22 is formed between the shaft sleeve 21 and the output shaft 38, the front end of the output shaft 38 is provided with a connecting groove 23, one side of the polishing head 18 is provided with a connecting rod 37, the connecting rod 37 is slidingly arranged in the connecting groove 23, the side wall of the connecting groove 23 is provided with a strip-shaped limiting groove 24, the side wall of the connecting rod 37 is provided with a strip-shaped sliding block 25, the strip-shaped sliding block is slidingly arranged in the strip-shaped limiting groove 24, the expansion cavity 26 is further formed between the connecting groove 23 and the tail of the connecting rod 37, the expansion cavity 26 is in communication with the fluid cavity 22, the output end of the fluid pump 19 is in communication with the fluid cavity 22 through the shaft connecting base 17 and the shaft sleeve 21.

[0032] The polishing head 18 is conical in structure, and the surface of the polishing head 18 is provided with a threaded cutting surface. The surface of the polishing head 18 is also longitudinally provided with a cutting groove 29. The output shaft 38 and the polishing head 18 are driven to rotate by the polishing motor 16, so that burrs on the gear can be processed. The polishing head 18 is connected in the connecting groove 23 at the front end of the output shaft 38 through the connecting rod 37. The connecting rod 37 is provided with a limiting cutting surface 30, and the connecting groove 23 is also provided with a groove surface matched with the limiting cutting surface 30. The limiting cutting surface 30 cooperates with the corresponding groove surface to prevent the polishing head 18 from slipping. The strip-shaped limiting groove 24 in the connecting groove 23 and the strip-shaped limiting block on the connecting rod 37 are used to enable the connecting rod 37 to move back and forth in the connecting groove 23, and the moving distance is also limited. The fluid pump 19 can inject fluid into the fluid cavity 22 inside the shaft sleeve 21. In this embodiment, hydraulic oil is injected. By injecting hydraulic oil into the fluid cavity 22, the hydraulic oil can flow into the expansion cavity 26 through the hole in the output shaft 38. When the hydraulic oil is quickly injected into the expansion cavity 26, the expansion cavity 26 will expand rapidly, which can drive the polishing head 18 to impact forward to generate an impact force on the burr. After the burr is impacted, it will loosen itself, so that it is easier to be polished by the polishing head 18. The surface treatment rate is further improved.

[0033] Embodiment 2

[0034] In combination Figures 4-5 , this embodiment has the same parts as embodiment 1. The output shaft 38 located at one end in the shaft cavity is provided with a blade 27. The shaft sleeve 21 located at one end in the shaft cavity is a large-diameter part. The diameter of the fluid cavity 22 in the large-diameter part is larger than that of the fluid cavity 22 at other positions. When the output rod rotates, the blade 27 rotates, which drives the hydraulic oil in the fluid cavity 22 to flow. The stirring of the blade 27 can increase the flowability of the hydraulic oil, making it easier to flow, reducing the viscosity of the hydraulic oil, and making it easier to be sucked in and discharged by the fluid pump 19. At the same time, the stirring of the blade 27 can increase the heat dissipation area of the hydraulic oil, avoiding the generation of high heat during extrusion. In this embodiment, a lip seal 28 is provided between the shaft sleeve 21 and the output shaft 38 to ensure the sealing effect between them.

[0035] The gear fixing assembly 1 comprises a fixing seat 31, and the fixing seat 31 is provided with a fixing platform 32. The top of the fixing seat 31 is provided with a hydraulic cylinder 33, and the output end of the hydraulic cylinder 33 is connected downwardly with a pressing plate 34. When fixing the gear, first, the gear is placed on the fixing platform 32, and then the output end of the hydraulic cylinder 33 is elongated downwardly, so that the pressing plate 34 presses the gear, and the gear is fixed.

[0036] The side of the fixed platform 32 is connected with a locking mechanism, which comprises a locking ring 35, the side wall of the locking ring 35 is provided with a plurality of locking bolts 36, the locking ring 35 is used for cooperating with the gear with a neck or driving the gear to be fixed, the locking ring 35 is sleeved on the position of the corresponding neck or shaft, by rotating the locking bolts 36 on the side wall of the locking ring 35, the locking bolts 36 can lock the neck of the corresponding gear or the gear shaft, so that the fixing effect is improved.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reducer gear surface processing apparatus characterized by: The utility model relates to a gear grinding device, including gear fixed component (1), rotating arm component (2) and gear grinding component (3), gear grinding component (3) is located rotating arm component (2) top, gear fixed component (1) is located gear grinding component (3) side, rotating arm component (2) including base (4), first rotating drive mechanism (5) is connected on base (4), first rotating drive mechanism (5) vertical connection has first rotating arm (6), first rotating arm (6) is rotatably connected with second rotating arm (7) and is fixedly connected with second rotating drive mechanism (8), second rotating drive mechanism (8) is connected with second rotating arm (7), second rotating arm (7) is connected with support platform (9), support platform (9) is connected with gear grinding component (3), first rotating arm (6) drives gear grinding component (3) and carries out rotating adjustment in two different directions, the inside of second rotating arm (7) is equipped with third rotating mechanism (10), the output of third rotating mechanism (10) is connected with the bottom of support platform (9), second rotating arm (7) drives gear grinding component (3) and carries out overturning adjustment in horizontal and vertical state, the side of first rotating arm (6) is connected with gear box (11), the bottom of second rotating arm (7) is connected with sleeve (12), the sleeve (12) of second rotating arm (7) is rotatably connected on first rotating arm (6), first rotating arm (6) is equipped with limit convex ring (13) still, one end of sleeve (12) is opposite with limit convex ring (13), the other end of sleeve (12) is opposite with the lateral wall of gear box (11), the outer circumferential surface of sleeve (12) close to gear box (11) side is equipped with external gear (14), second rotating drive mechanism (8) includes third rotating motor fixed on gear box (11) and the drive gear (15) of output end connection with third rotating motor, the drive gear (15) is engaged with external gear (14), gear grinding component (3) includes gear grinding motor (16), connecting axle seat (17) and polishing head (18), the output of gear grinding motor (16) is connected with output shaft (38), output shaft (38) passes through connecting axle seat (17) and is connected with polishing head (18), the top of connecting axle seat (17) is equipped with fluid pump (19), the inside of connecting axle seat (17) is equipped with connecting axle cavity (20), the one end of axle sleeve (21) in connecting axle cavity (20) fixed mounting extends outward and is wrapped in the outside of output shaft (38), fluid cavity (22) is formed between axle sleeve (21) and output shaft (38), the front end of output shaft (38) is equipped with connecting groove (23), one side of polishing head (18) is equipped with connecting rod (37), connecting rod (37) is slidably arranged in connecting groove (23), the lateral wall of connecting groove (23) is equipped with strip limit slot (24), the lateral wall of connecting rod (37) is equipped with strip slider (25),The strip-shaped slider (25) is slidingly arranged in a strip-shaped limiting groove (24), an expansion cavity (26) is further formed between the connecting groove (23) and the tail of the connecting rod (37), the expansion cavity (26) is communicated with the fluid cavity (22), the output end of the fluid pump (19) is communicated with the fluid cavity (22) through the connecting shaft base (17) and the shaft sleeve (21), one end of the output shaft (38) located in the shaft cavity is provided with a blade (27), one end of the shaft sleeve (21) located in the shaft cavity is a large-diameter part, and the diameter of the fluid cavity (22) in the large-diameter part is larger than that of the fluid cavity (22) at other positions.

2. The reducer gear surface treatment apparatus according to claim 1, characterized by: A lip-shaped sealing element (28) is arranged between the shaft sleeve (21) and the output shaft (38).

3. The reducer gear surface treatment apparatus according to claim 2, characterized by: The polishing head (18) is in a conical structure, and a threaded cutting surface is arranged on the surface of the polishing head (18), and a cutting groove (29) is longitudinally arranged on the surface of the polishing head (18).

4. The reducer gear surface treatment apparatus according to claim 3, characterized by: A limiting cutting surface (30) is arranged on the connecting rod (37).

5. The reducer gear surface treatment apparatus according to claim 4, characterized by: The gear fixing assembly (1) comprises a fixing base (31), a fixing platform (32) is arranged on the fixing base (31), a hydraulic cylinder (33) is arranged on the top of the fixing base (31), and a pressing plate (34) is connected downwardly to the output end of the hydraulic cylinder (33).

6. The reducer gear surface treatment apparatus according to claim 5, characterized by: A locking mechanism is connected to the side edge of the fixing platform (32), and the locking mechanism comprises a locking ring (35), and a plurality of locking bolts (36) are arranged on the side wall of the locking ring (35).

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