A device for detecting the wear resistance of meshing surfaces of precision gears

Abstract

The present invention discloses a device for detecting the wear resistance of meshing surfaces of precision gears, which belongs to the field of gear detection technology, and includes a placement mechanism for placing precision gears, on which a test mechanism for detecting the wear resistance of meshing surfaces of precision gears and a switching mechanism for driving the test mechanism and the placement mechanism are provided. The placement mechanism provided by the present invention can simultaneously place four precision gears to be detected, and detect the wear resistance of meshing surfaces of precision gears under different stress conditions, with good detection effect; the test mechanism provided by the present invention can provide the same load through four load modules, and apply different forces to the precision gears through the first gear, the second gear, the third gear and the fourth gear with the same module and decreasing number of teeth in sequence, with high detection accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of gear detection, and in particular to a device for detecting the wear resistance of a meshing surface of a precision gear. Background Art

[0002] Precision gears are the main products of the precision manufacturing industry. Precision gears pursue the limits of surface quality, processing accuracy, product design or automation. Precision manufacturing is a symbol of important industrial progress and can play an important role in international industrial competition. After processing and production, precision gears need to be tested to varying degrees according to the application scenario. However, the main function of gears is transmission, so the wear resistance of their meshing surfaces is more stringent. The precision gear meshing surface detection device in the prior art only tests single teeth, which is different from the actual use situation, and cannot realize the wear resistance detection of precision gears under different stress conditions. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a device for detecting the wear resistance of the meshing surface of precision gears, comprising a placing mechanism for placing precision gears, the placing mechanism comprising a frame, on which a docking gear is rotatably mounted, the placing mechanism is provided with a testing mechanism for detecting the wear resistance of the meshing surface of the precision gears and a switching mechanism for driving the testing mechanism and the placing mechanism, the testing mechanism comprises four internal gears, which are rotatably mounted on the frame, and the switching mechanism comprises a vertical gear shaft, which is rotatably mounted on the frame.

[0004] Furthermore, the placement mechanism includes four switching seats rotatably mounted on the frame body, a four-part card block and a switching gear are fixedly mounted below the switching seat, a lower gear ring is rotatably mounted on the frame body, the lower gear ring is meshed with the four switching gears, a placement column is fixedly mounted on the switching seat, the precision gear is placed on the placement column, and the precision gear can rotate relative to the placement column.

[0005] Furthermore, a driving gear is rotatably mounted on the frame, the driving gear is meshed with the lower gear ring, and a transmission belt is wound around the driving gear and the docking gear.

[0006] Furthermore, four limit clamping blocks for cooperating with the four-part clamping blocks are slidably mounted on the frame body, and a limit spring is arranged between the limit clamping blocks and the frame body.

[0007] When in use, the four precision gears to be tested are placed on the placement columns of the four switching seats respectively. When the upper docking gear is meshed with the docking gear, the driving gear is driven to rotate through the transmission belt, thereby driving the lower gear ring to rotate. The lower gear ring drives the switching gear, the four-part card block and the switching seat to rotate, so that the precision gear rotates 180 degrees. During the rotation process, the four-part card block will push the limit card block to slide inward, and the limit spring is compressed. When the lower gear ring does not rotate, the position of the four-part card block and the switching seat is kept stationary by the limit card block. When the precision gear rotates 180 degrees, the four precision gears are all meshed with the four upper gears, and the four precision gears are respectively meshed with the first gear, the second gear, the third gear and the fourth gear.

[0008] Furthermore, the testing mechanism includes four upper gears rotatably mounted on a frame, a lower gear is fixedly mounted below the upper gear, an upper gear ring is rotatably mounted on the frame, the upper gear ring is meshed with the upper gears, when the precision gear is in a detection state, the precision gear is meshed with the lower gear, a middle gear is rotatably mounted on the frame, the middle gear is meshed with the upper gear ring, and the middle gear is meshed with the internal gear.

[0009] Furthermore, the frame body is rotatably mounted with a first gear, a second gear, a third gear and a fourth gear, the first gear, the second gear, the third gear and the fourth gear have the same module, and the number of teeth of the first gear, the second gear, the third gear and the fourth gear decreases successively, and when the precision gear is in a detection state, the four precision gears are respectively meshed with the first gear, the second gear, the third gear and the fourth gear, a first lower gear is fixedly mounted under the first gear, a second lower gear is fixedly mounted under the second gear, a third lower gear is fixedly mounted under the third gear, and a fourth lower gear is fixedly mounted under the fourth gear.

[0010] Furthermore, four load modules are arranged under the frame, and the load modules include a magnetic pole seat, a magnetic pole is arranged inside the magnetic pole seat, a coil frame is rotatably mounted on the frame, a coil gear is fixedly mounted on the coil frame, the coil gears of the four load modules are respectively engaged with the first lower gear, the second lower gear, the third lower gear and the fourth lower gear, a coil is fixedly mounted on the coil frame, and the coil is located inside the magnetic pole seat.

[0011] When the upper docking gear is meshed with the inner gear, the upper docking gear drives the inner gear to rotate, and drives the upper gear ring to rotate through the middle gear, thereby driving the four upper gears and the lower gear to rotate synchronously, and respectively driving the four precision gears to rotate. The four precision gears respectively drive the first gear, the second gear, the third gear and the fourth gear to rotate, thereby driving the first lower gear, the second lower gear, the third lower gear and the fourth lower gear to rotate, thereby driving the coil gears, coil frames and coils of the four load modules to rotate, and the load is generated by the interaction between the coil and the pole seat, and the load generated by the four load modules is the same. Since the modulus of the first gear, the second gear, the third gear and the fourth gear is the same, and the number of teeth of the first gear, the second gear, the third gear and the fourth gear decreases successively, the force of the precision gear to drive the first gear, the second gear, the third gear and the fourth gear to rotate gradually increases, thereby testing the bearing capacity of the precision gears under different force conditions. After the test is completed, the switching seat is rotated out and the precision gear is removed.

[0012] Furthermore, the switching mechanism includes a motor frame located below the frame, a motor is fixedly mounted on the motor frame, a motor gear is fixedly mounted on the motor shaft of the motor, a base is fixedly mounted next to the motor frame, an electric cylinder is fixedly mounted on the base, a lifting shaft is slidably mounted in the electric cylinder, the lifting shaft is rotatable relative to the base, a lower docking gear and an upper docking gear are fixedly mounted on the lifting shaft, the output end of the electric cylinder contacts the lower docking gear, the lower docking gear meshes with the motor gear, when the precision gear is tested, the upper docking gear meshes with the internal gear, and when the precision gear is placed and removed, the upper docking gear meshes with the docking gear.

[0013] The motor drives the motor gear to rotate, thereby driving the lower docking gear, the lifting shaft and the upper docking gear to rotate. When the precision gear is tested, the electric cylinder does not extend, and the upper docking gear is meshed with the internal gear. When the precision gear is placed and taken out, the electric cylinder extends, driving the lower docking gear, the lifting shaft and the upper docking gear to rise, the upper docking gear is meshed with the docking gear, and the lower docking gear remains meshed with the motor gear.

[0014] Compared with the prior art, the present invention has the following advantages: (1) the placement mechanism provided in the present invention can place four precision gears to be tested at the same time, and test the wear resistance of the meshing surfaces of the precision gears under different stress conditions, and the test effect is good; (2) the test mechanism provided in the present invention can provide the same load through four load modules, and apply different forces to the precision gears through the first gear, the second gear, the third gear and the fourth gear with the same module and decreasing number of teeth, and the test accuracy is high; (3) the switching mechanism provided in the present invention can drive the lower docking gear, the lifting shaft and the upper docking gear to rise when the electric cylinder is extended, and the upper docking gear is meshed with the docking gear, so that the precision gear is placed and taken out; when the electric cylinder is not extended, the lower docking gear, the lifting shaft and the upper docking gear are driven to rotate, so that the precision gear is tested, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 The present invention is placed in the structure of the mechanism schematic diagram Figure 1 .

[0017] Figure 3 The present invention is placed in the structure of the mechanism schematic diagram Figure 2 .

[0018] Figure 4 The present invention is placed in the structure of the mechanism schematic diagram Figure 3 .

[0019] Figure 5 The structure of the test mechanism of the present invention is shown in FIG. Figure 1 .

[0020] Figure 6 The structure of the test mechanism of the present invention is shown in FIG. Figure 2 .

[0021] Figure 7 The switching mechanism structure of the present invention is schematically shown in FIG. Figure 1 .

[0022] Figure 8 The switching mechanism structure of the present invention is schematically shown in FIG. Figure 2 .

[0023] Figure numbers: 101-frame; 102-switching seat; 103-switching gear; 104-docking gear; 105-four-part block; 106-limit spring; 107-limit block; 108-lower gear ring; 109-driving gear; 110-transmission belt; 111-placing column; 201-upper gear; 202-lower gear; 203-upper gear ring; 204-inner gear; 205-middle gear; 206-second gear; 207-second lower gear; 208-third gear; 209-third lower gear Gear; 210-first gear; 211-first lower gear; 212-fourth gear; 213-fourth lower gear; 214-pole seat; 215-coil gear; 216-coil frame; 217-coil; 301-motor frame; 302-motor; 303-motor gear; 304-base; 305-electric cylinder; 306-lifting shaft; 307-lower docking gear; 308-upper docking gear; 309-vertical gear shaft; 310-detection gear; 311-lower gear; 4-precision gear. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] Example: Reference Figure 1-Figure 8 A device for detecting the wear resistance of the meshing surface of a precision gear comprises a placing mechanism for placing a precision gear 4, the placing mechanism comprises a frame 101, a docking gear 104 is rotatably mounted on the frame 101, a testing mechanism for detecting the wear resistance of the meshing surface of the precision gear and a switching mechanism for driving the testing mechanism and the placing mechanism are provided on the placing mechanism, the testing mechanism comprises four internal gears 204, the internal gears 204 are rotatably mounted on the frame 101, the switching mechanism comprises a vertical gear shaft 309, and the vertical gear shaft 309 is rotatably mounted on the frame 101.

[0026] like Figure 2-Figure 4 As shown, the placement mechanism includes four switching seats 102 rotatably mounted on the frame body 101, a quarter-block 105 and a switching gear 103 are fixedly mounted below the switching seat 102, a lower gear ring 108 is rotatably mounted on the frame body 101, the lower gear ring 108 is meshed with the four switching gears 103, a placement column 111 is fixedly mounted on the switching seat 102, the precision gear 4 is placed on the placement column 111, and the precision gear 4 can rotate relative to the placement column 111.

[0027] like Figure 2-Figure 4 As shown, a driving gear 109 is rotatably mounted on the frame 101 , the driving gear 109 is meshed with the lower gear ring 108 , and a transmission belt 110 is wound around the driving gear 109 and the docking gear 104 .

[0028] like Figure 2-Figure 4As shown, four limit blocks 107 for cooperating with the four-part block 105 are slidably mounted on the frame body 101 , and a limit spring 106 is arranged between the limit block 107 and the frame body 101 .

[0029] When in use, the four precision gears 4 to be tested are placed on the placement columns 111 of the four switching seats 102 respectively. When the upper docking gear 308 is meshed with the docking gear 104, the driving gear 109 is driven to rotate through the transmission belt 110, thereby driving the lower ring gear 108 to rotate. The lower ring gear 108 drives the switching gear 103, the four-part card block 105 and the switching seat 102 to rotate, so that the precision gear 4 rotates 180 degrees. During the rotation process, the four-part card block 105 will push the limit card block 107 to slide inward, and the limit spring 106 is compressed. When the lower ring gear 108 does not rotate, the position of the four-part card block 105 and the switching seat 102 is kept stationary by the limit card block 107. After the precision gear 4 rotates 180 degrees, the four precision gears 4 are all meshed with the four upper gears 201, and the four precision gears 4 are respectively meshed with the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212.

[0030] like Figure 5 , Figure 6 As shown, the testing mechanism includes four upper gears 201 rotatably mounted on the frame 101, a lower gear 202 is fixedly mounted below the upper gear 201, an upper ring gear 203 is rotatably mounted on the frame 101, the upper ring gear 203 meshes with the upper gear 201, when the precision gear 4 is in the detection state, the precision gear 4 meshes with the lower gear 202, a middle gear 205 is rotatably mounted on the frame 101, the middle gear 205 meshes with the upper ring gear 203, and the middle gear 205 meshes with the inner gear 204.

[0031] like Figure 5 , Figure 6 As shown, the frame 101 is rotatably mounted with a first gear 210, a second gear 206, a third gear 208 and a fourth gear 212, the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 having the same module, and the number of teeth of the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 decreases successively, when the precision gear 4 is in the detection state, the four precision gears 4 are respectively meshed with the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212, a first lower gear 211 is fixedly mounted below the first gear 210, a second lower gear 207 is fixedly mounted below the second gear 206, a third lower gear 209 is fixedly mounted below the third gear 208, and a fourth lower gear 213 is fixedly mounted below the fourth gear 212.

[0032] like Figure 5 , Figure 6As shown, four load modules are arranged below the frame 101, and the load modules include a magnetic pole seat 214, and a magnetic pole is arranged inside the magnetic pole seat 214. A coil frame 216 is rotatably mounted on the frame 101, and a coil gear 215 is fixedly mounted on the coil frame 216. The coil gears 215 of the four load modules are respectively engaged with the first lower gear 211, the second lower gear 207, the third lower gear 209 and the fourth lower gear 213. A coil 217 is fixedly mounted on the coil frame 216, and the coil 217 is located inside the magnetic pole seat 214.

[0033] When the upper docking gear 308 is meshed with the inner gear 204, the upper docking gear 308 drives the inner gear 204 to rotate, and drives the upper gear ring 203 to rotate through the middle gear 205, thereby driving the four upper gears 201 and the lower gear 202 to rotate synchronously, and respectively driving the four precision gears 4 to rotate. The four precision gears 4 respectively drive the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 to rotate, thereby driving the first lower gear 211, the second lower gear 207, the third lower gear 209 and the fourth lower gear 213 to rotate, thereby driving the coil gears 215, the coil frame 216 and the coil 217 of the four load modules to rotate. The coil 217 and the magnetic pole seat 214 interact to generate a load, and the loads generated by the four load modules are the same. Since the modules of the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 are the same, and the number of teeth of the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 decreases successively, the force of the precision gear 4 driving the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 to rotate gradually increases, thereby testing the bearing capacity of the precision gear 4 under different force conditions. After the test is completed, the switching seat 102 is rotated out and the precision gear 4 is removed.

[0034] like Figure 7 , Figure 8 As shown, the switching mechanism includes a motor frame 301 located below the frame 101, a motor 302 is fixedly mounted on the motor frame 301, a motor gear 303 is fixedly mounted on the motor shaft of the motor 302, a base 304 is fixedly mounted next to the motor frame 301, an electric cylinder 305 is fixedly mounted on the base 304, a lifting shaft 306 is slidably mounted in the electric cylinder 305, the lifting shaft 306 is rotatable relative to the base 304, a lower docking gear 307 and an upper docking gear 308 are fixedly mounted on the lifting shaft 306, an output end of the electric cylinder 305 contacts the lower docking gear 307, the lower docking gear 307 is meshed with the motor gear 303, when the precision gear 4 is detected, the upper docking gear 308 is meshed with the internal gear 204, when the precision gear 4 is placed and removed, the upper docking gear 308 is meshed with the docking gear 104.

[0035] The motor 302 drives the motor gear 303 to rotate, thereby driving the lower docking gear 307, the lifting shaft 306 and the upper docking gear 308 to rotate. When the precision gear 4 is inspected, the electric cylinder 305 does not extend, and the upper docking gear 308 is engaged with the internal gear 204. When the precision gear 4 is placed and taken out, the electric cylinder 305 extends, driving the lower docking gear 307, the lifting shaft 306 and the upper docking gear 308 to rise, the upper docking gear 308 is engaged with the docking gear 104, and the lower docking gear 307 remains engaged with the motor gear 303.

[0036] The working principle of the device for detecting the wear resistance of meshing surfaces of precision gears disclosed in the present invention is as follows: when in use, four precision gears 4 to be detected are respectively placed on the placement columns 111 of four switching seats 102, and the electric cylinder 305 is extended to drive the lower docking gear 307, the lifting shaft 306 and the upper docking gear 308 to rise, and the upper docking gear 308 is meshed with the docking gear 104, and the lower docking gear 307 is kept meshed with the motor gear 303, and the motor 302 drives the motor gear 303 to rotate, thereby driving the lower docking gear 307, the lifting shaft 306 and the upper docking gear 308 to rotate, and the driving gear 109 is driven to rotate through the transmission belt 110, thereby driving the lower gear ring 108 to rotate, and the lower The gear ring 108 drives the switching gear 103, the four-part block 105 and the switching seat 102 to rotate, so that the precision gear 4 rotates 180 degrees. During the rotation, the four-part block 105 will push the limit block 107 to slide inward, and the limit spring 106 is compressed. When the lower gear ring 108 does not rotate, the position of the four-part block 105 and the switching seat 102 is kept stationary by the limit block 107. When the precision gear 4 rotates 180 degrees, the four precision gears 4 are all meshed with the four upper gears 201, and the four precision gears 4 are respectively meshed with the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212. After the precision gear 4 is placed, the electric cylinder 305 shrinks and the upper docking The gear 308, the lifting shaft 306 and the lower docking gear 307 descend under the action of gravity, so that the upper docking gear 308 meshes with the inner gear 204, and the upper docking gear 308 drives the inner gear 204 to rotate, and drives the upper gear ring 203 to rotate through the middle gear 205, thereby driving the four upper gears 201 and the lower gear 202 to rotate synchronously, and respectively drives the four precision gears 4 to rotate, and the four precision gears 4 respectively drive the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 to rotate, thereby driving the first lower gear 211, the second lower gear 207, the third lower gear 209 and the fourth lower gear 213 to rotate, thereby driving the coil gears 2 of the four load modules. 15. The coil frame 216 and the coil 217 rotate, and a load is generated through the interaction between the coil 217 and the pole seat 214, and the loads generated by the four load modules are the same. Since the modules of the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 are the same, and the number of teeth of the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 decreases successively, the force of the precision gear 4 driving the first gear 210, the second gear 206, the third gear 208 and the fourth gear 212 to rotate gradually increases, thereby testing the bearing capacity of the precision gear 4 under different force conditions. After the test is completed, the switching seat 102 is rotated out and the precision gear 4 is removed.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting the wear resistance of meshing surfaces of precision gears, comprising a placement mechanism for placing precision gears (4), characterized in that: The placement mechanism comprises a frame (101), a docking gear (104) is rotatably mounted on the frame (101), a testing mechanism for testing the wear resistance of the meshing surface of the precision gear and a switching mechanism for driving the testing mechanism and the placement mechanism are provided on the placement mechanism, the testing mechanism comprises four internal gears (204), the internal gears (204) are rotatably mounted on the frame (101), and the switching mechanism comprises a vertical gear shaft (309), the vertical gear shaft (309) is rotatably mounted on the frame (101); The placement mechanism comprises four switching seats (102) rotatably mounted on a frame body (101); a quarter-block (105) and a switching gear (103) are fixedly mounted below the switching seats (102); a lower gear ring (108) is rotatably mounted on the frame body (101); the lower gear ring (108) meshes with the four switching gears (103); a placement column (111) is fixedly mounted on the switching seat (102); a precision gear (4) is placed on the placement column (111); and the precision gear (4) can rotate relative to the placement column (111); The testing mechanism comprises four upper gears (201) rotatably mounted on a frame (101), a lower gear (202) being fixedly mounted below the upper gears (201), an upper gear ring (203) being rotatably mounted on the frame (101), the upper gear ring (203) being meshed with the upper gears (201), when the precision gear (4) is in a testing state, the precision gear (4) is meshed with the lower gears (202), a middle gear (205) is rotatably mounted on the frame (101), the middle gear (205) is meshed with the upper gear ring (203), and the middle gear (205) is meshed with the inner gear (204); The switching mechanism comprises a motor frame (301) located below the frame body (101), a motor (302) being fixedly mounted on the motor frame (301), a motor gear (303) being fixedly mounted on the motor shaft of the motor (302), a base (304) being fixedly mounted next to the motor frame (301), an electric cylinder (305) being fixedly mounted on the base (304), a lifting shaft (306) being slidably mounted in the electric cylinder (305), and the lifting shaft (306) being slidably mounted relative to the base (304). The lifting shaft (306) is rotatable, and a lower docking gear (307) and an upper docking gear (308) are fixedly mounted on the lifting shaft (306). The output end of the electric cylinder (305) contacts the lower docking gear (307), and the lower docking gear (307) meshes with the motor gear (303). When the precision gear (4) is tested, the upper docking gear (308) meshes with the internal gear (204). When the precision gear (4) is placed or removed, the upper docking gear (308) meshes with the docking gear (104).

2. A device for detecting wear resistance of meshing surfaces of precision gears according to claim 1, characterized in that: A driving gear (109) is rotatably mounted on the frame (101), the driving gear (109) meshes with the lower gear ring (108), and a transmission belt (110) is wound around the driving gear (109) and the docking gear (104).

3. The device for detecting wear resistance of meshing surface of precision gear according to claim 1, characterized in that: Four limit clamping blocks (107) for cooperating with the four-part clamping blocks (105) are slidably mounted on the frame body (101), and a limit spring (106) is arranged between the limit clamping blocks (107) and the frame body (101).

4. A device for detecting wear resistance of meshing surfaces of precision gears according to claim 1, characterized in that: A first gear (210), a second gear (206), a third gear (208) and a fourth gear (212) are rotatably mounted on the frame (101); the first gear (210), the second gear (206), the third gear (208) and the fourth gear (212) have the same module, and the number of teeth of the first gear (210), the second gear (206), the third gear (208) and the fourth gear (212) decreases in sequence; when the precision gear (4) is in a detection state, the four precision gears (4) are respectively meshed with the first gear (210), the second gear (206), the third gear (208) and the fourth gear (212); a first lower gear (211) is fixedly mounted below the first gear (210); a second lower gear (207) is fixedly mounted below the second gear (206); a third lower gear (209) is fixedly mounted below the third gear (208); and a fourth lower gear (213) is fixedly mounted below the fourth gear (212).

5. A device for detecting wear resistance of meshing surfaces of precision gears according to claim 4, characterized in that: Four load modules are arranged below the frame (101), the load modules comprising a magnetic pole seat (214), a magnetic pole being arranged inside the magnetic pole seat (214), a coil frame (216) being rotatably mounted on the frame (101), a coil gear (215) being fixedly mounted on the coil frame (216), the coil gears (215) of the four load modules being respectively meshed with a first lower gear (211), a second lower gear (207), a third lower gear (209) and a fourth lower gear (213), a coil (217) being fixedly mounted on the coil frame (216), and the coil (217) being located inside the magnetic pole seat (214).

Images