Device for detecting abrasion degree of gear shaft of speed reducer

Abstract

The utility model relates to the technical field of speed reducer detection, in particular to speed reducer gear shaft wear degree detection equipment, which comprises a to-be-detected mechanism, a locking pressure-bearing mechanism arranged outside the to-be-detected mechanism, a seismic source radiation mechanism arranged on the locking pressure-bearing mechanism and a vibration amplitude detector arranged in the locking pressure-bearing mechanism, the locking pressure-bearing mechanism comprises a first backing ring and a second backing ring arranged on the outer side of the first backing ring. A vibration amplitude detector is attached to a clamping seat for transmitting vibration, when an external motor drives a transmission shaft rod and a differential gear in a speed reducer drives a rotation assisting shaft rod to rotate, once the differential gear in the speed reducer is insufficient in running-in degree, tooth opening abrasion is aggravated, and then the rotation assisting shaft rod shakes, the rotation assisting shaft rod is driven to rotate by the differential gear in the speed reducer. And the clamping seat can transmit the vibration amplitude of the rotation assisting shaft rod to the detector in time through the vibration amplitude detector, so that the running-in state of the differential gear on the inner wall of the closed speed reducer is detected in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducer detection, in particular to a speed reducer gear shaft wear detection device. Background Art

[0002] A reducer is an independent component consisting of a gear drive, worm drive, or gear-worm drive enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine.

[0003] Since the differential gear inside the newly installed reducer is affected by the tooling, when the gear running-in degree is not enough, the reducer will cause wear on the teeth of the differential gear once it is running, and in severe cases, it will cause the internal shaft to shake.

[0004] Regarding the newly installed reducer mentioned above, how to detect the amplitude of the shaft inside the reducer in real time is a technical difficulty that needs to be solved. Utility Model Content

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in this utility model is:

[0007] A reducer gear shaft wear detection device comprises a mechanism to be tested, a locking and pressure-bearing mechanism arranged outside the mechanism to be tested, a source radiation mechanism installed on the locking and pressure-bearing mechanism, and an amplitude detector arranged in the locking and pressure-bearing mechanism;

[0008] The locking pressure-bearing mechanism comprises a first gasket, a second gasket arranged outside the first gasket, a compression screw penetrating into the second gasket and movably mounted in the first gasket, a first pressure-resistant outer plate mounted outside the first gasket, a second pressure-resistant outer plate mounted outside the second gasket, and a positioning bolt movably mounted on the second pressure-resistant outer plate;

[0009] The seismic source radiation mechanism includes two pads movably installed in the first and second pressure-resistant outer plates, a latch installed inside the pads, a protective shell installed outside the pads, a clamp seat and a buckle installed outside the pads, and a spring arranged outside the pads.

[0010] In a preferred example, the utility model can be further configured as follows: the mechanism to be tested includes a reducer, a transmission shaft movably installed in an end tube on one side outside the reducer, and a rotation-assisting shaft movably installed in the reducer.

[0011] In a preferred example, the utility model can be further configured as follows: threaded transverse holes adapted for the compression screw are provided in two rectangular end plates at the top and bottom of the first gasket;

[0012] The end of the compression screw rod passing through the second gasket is connected with a sub-bolt.

[0013] In a preferred example, the utility model can be further configured as follows: the first pressure-resistant outer plate and the second pressure-resistant outer plate are both made of aluminum alloy material, sleeves are installed in the middle of the first pressure-resistant outer plate and the second pressure-resistant outer plate, and threaded vertical holes are opened in the column heads at the tops of the sleeves.

[0014] In a preferred example, the utility model can be further configured as follows: a fan-shaped pressure block is installed at the inner end of the cushion, and a cross-shaped insertion rod is fixedly installed at one end of the fan-shaped pressure block away from the auxiliary rotation shaft, and a gasket and a sub-bolt are provided at the outer end of the cross-shaped insertion rod.

[0015] In a preferred example, the utility model can be further configured as follows: the protective shell is made of thickened silicone material.

[0016] In a preferred example, the utility model can be further configured as follows: two groups of rivets are fixedly installed in the ends adjacent to the buckle and the clamp seat, and a conical column head is installed at one end of the clamp seat away from the cushion.

[0017] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0018] 1. The utility model fits the amplitude detector with the clamp seat for vibration transmission. As the external motor drives the transmission shaft and drives the auxiliary shaft to rotate through the differential gear inside the reducer, once the differential gear inside the reducer has insufficient running-in, which causes the tooth wear to increase, and then causes the auxiliary shaft to shake, the clamp seat can transmit the amplitude of the auxiliary shaft vibration to the detector through the amplitude detector in time, thereby realizing real-time detection of the running-in state of the differential gear on the inner wall of the enclosed reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the utility model when in use;

[0020] Figure 2 It is a schematic diagram of the mechanism to be tested of the utility model;

[0021] Figure 3 It is a schematic diagram of the locking pressure-bearing mechanism of the utility model;

[0022] Figure 4 For this utility model Figure 3 Schematic diagram of the internal dispersion of

[0023] Figure 5 It is a dispersed schematic diagram of the earthquake source radiation mechanism of the utility model.

[0024] Reference numerals:

[0025] 100, the mechanism to be tested; 110, the speed reducer; 120, the transmission shaft; 130, the auxiliary rotation shaft;

[0026] 200, locking pressure bearing mechanism; 210, first gasket; 220, second gasket; 230, pressing screw; 240, first pressure-resistant outer plate; 250, second pressure-resistant outer plate; 260, positioning bolt;

[0027] 300, source radiation mechanism; 310, cushion; 320, protective housing; 330, latch; 340, clamp seat; 350, buckle; 360, spring;

[0028] 400. Amplitude detector. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0031] A reducer gear shaft wear detection device provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings. Embodiment 1

[0032] Combination Figure 1-Figure 5 As shown, the utility model provides a reducer gear shaft wear detection device, comprising a test mechanism 100, a locking pressure-bearing mechanism 200 arranged outside the test mechanism 100, a source radiation mechanism 300 installed on the locking pressure-bearing mechanism 200, and an amplitude detector 400 arranged in the locking pressure-bearing mechanism 200;

[0033] The mechanism to be tested 100 includes a reducer 110, a transmission shaft 120 movably mounted in an end tube on one side outside the reducer 110, and a rotation-assisting shaft 130 movably mounted in the reducer 110;

[0034] The locking pressure bearing mechanism 200 includes a first gasket 210, a second gasket 220 disposed outside the first gasket 210, a compression screw 230 penetrating into the second gasket 220 and movably mounted in the first gasket 210, a first pressure-resistant outer plate 240 mounted outside the first gasket 210, a second pressure-resistant outer plate 250 mounted outside the second gasket 220, and a positioning bolt 260 movably mounted on the second pressure-resistant outer plate 250;

[0035] The seismic source radiation mechanism 300 includes two pads 310 movably installed in the first pressure-resistant outer plate 240 and the second pressure-resistant outer plate 250, a pin 330 installed inside the pads 310, a protective shell 320 installed outside the pads 310, a clamp seat 340 and a buckle 350 installed outside the pads 310, and a spring 360 arranged outside the pads 310.

[0036] Since the newly installed reducer needs to be tested before it is put into use, when the running-in degree between the differential gears is not enough, once the drive shaft and the auxiliary shaft are pressed and rotated, the differential gears will wear faster due to insufficient running-in degree. In severe cases, the shaking amplitude of the auxiliary shaft will increase.

[0037] By pre-adjusting the outer end wheels of the two clamping screws 230 until the two clamping screws 230 rotate clockwise, the first gasket 210 and the second gasket 220 will be pressed and fixed on the shell of the external end tube of the reducer 110. The first pressure-resistant outer plate 240 and the second pressure-resistant outer plate 250 in a stable state can provide bearing capacity for the high-frequency vibration of the two pads 310. As the detection end of the amplitude detector 400 is attached to the inner wall of the clamp seat 340 and the clamp seat 340 transmits the vibration on the auxiliary rotating shaft 130, the locked amplitude detector 400 can quickly transfer the vibration on the auxiliary rotating shaft 130 to the detector, thereby facilitating the operator to observe the internal differential gear of the reducer 110 in real time. Embodiment 2

[0038] Combination Figure 2-Figure 5 As shown, based on the first embodiment, two rectangular end plates at the top and bottom of the first gasket 210 are provided with threaded transverse holes adapted to fit the compression screw 230;

[0039] The end of the compression screw 230 that passes through the second gasket 220 is connected with a sub-bolt.

[0040] The first compression-resistant outer plate 240 and the second compression-resistant outer plate 250 are both made of aluminum alloy material. A sleeve is installed in the middle of the first compression-resistant outer plate 240 and the second compression-resistant outer plate 250, and a threaded vertical hole is opened in the column head at the top of the sleeve.

[0041] By movably installing two positioning bolts 260 in the first pressure-resistant outer plate 240 and the second pressure-resistant outer plate 250 respectively, when it is necessary to adjust the vibration amplitude detection of the auxiliary rotating shaft 130, the distance between the amplitude detector 400 and the clamp seat 340 can be adjusted by controlling the positioning bolts 260, and the spring 360 can be used to provide pressure-resistant reset for the cushion 310, so that the device can be convenient for testing the shaking of the newly installed reducer 110 and the auxiliary rotating shaft 130. Embodiment 3

[0042] Combination Figure 2-Figure 5 As shown, based on the first embodiment, a fan-shaped pressing block is installed at the inner end of the cushion 310, and a cross-shaped insert rod is fixedly installed at one end of the fan-shaped pressing block away from the auxiliary rotation shaft 130, and a gasket and a sub-bolt are provided at the outer end of the cross-shaped insert rod.

[0043] The protective shell 320 is made of thickened silicone material.

[0044] Two groups of rivets are fixedly installed in the adjacent ends of the buckle 350 and the clamp seat 340, and a conical column head is installed at one end of the clamp seat 340 away from the cushion 310.

[0045] By setting two cushions 310 on both sides of the auxiliary rotation shaft 130 and providing elastic support force to the two cushions 310 through two springs 360, the auxiliary rotation shaft 130 under test can always maintain a constant pressure state for rotation. When pressure needs to be applied to one side of the auxiliary rotation shaft 130, one of the cushions 310 can be removed, thereby providing selective pressure on the vibration of the auxiliary rotation shaft 130, which is convenient for comparison of subsequent test data.

[0046] The working principle and use process of the utility model are as follows: the inner ends of the two clamping screws 230 are pre-assembled in the end plate outside the second gasket 220 by using two sub-bolts, and the screw rod part of the clamping screw 230 is movably installed in the end plate outside the first gasket 210. When the operator adjusts the rotating wheels at the outer ends of the two clamping screws 230, the adjacent first gasket 210 and the second gasket 220 will lock the end tube outside the reducer 110. At this time, the first pressure-resistant outer plate 240 and the second pressure-resistant outer plate 250 respectively installed on the outside of the first gasket 210 and the second gasket 220 can provide sufficient and stable bearing capacity for the two gaskets 310 to be installed later, and the outer end of the gasket 310 is locked by the gasket and the sub-bolt. At this time, the spring 360 arranged on the outside of the gasket 310 can press the inner wall of the first pressure-resistant outer plate 240 or the second pressure-resistant outer plate 250;

[0047] When in use, the operator needs to insert the amplitude detector 400 into the sleeve in the middle of the first pressure-resistant outer plate 240 or the second pressure-resistant outer plate 250, and then fit the detection end of the inner end of the amplitude detector 400 into the cavity of the outer end column head of the clamp seat 340, and use an external motor to drive the transmission shaft 120 to rotate, and the auxiliary rotating shaft 130 running at high speed can rotate in the gap between the two pads 310. Once the differential gear inside the reducer 110 is out of position or fails, the vibration detection of the auxiliary rotating shaft 130 by the amplitude detector 400 can facilitate the operator to timely observe whether the differential gear inside the reducer 110 is in balance.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A reducer gear shaft wear detection device, characterized in that: It comprises a mechanism to be tested (100), a locking and pressure-bearing mechanism (200) arranged outside the mechanism to be tested (100), a seismic source radiation mechanism (300) installed on the locking and pressure-bearing mechanism (200), and a seismic amplitude detector (400) arranged inside the locking and pressure-bearing mechanism (200); The locking pressure-bearing mechanism (200) comprises a first gasket (210), a second gasket (220) arranged outside the first gasket (210), a compression screw (230) penetrating into the second gasket (220) and movably mounted in the first gasket (210), a first pressure-resistant outer plate (240) mounted outside the first gasket (210), a second pressure-resistant outer plate (250) mounted outside the second gasket (220), and a positioning bolt (260) movably mounted on the second pressure-resistant outer plate (250); The seismic source radiation mechanism (300) comprises two cushions (310) movably mounted inside a first pressure-resistant outer plate (240) and a second pressure-resistant outer plate (250), a latch (330) mounted inside the cushions (310), a protective shell (320) mounted outside the cushions (310), a clamp seat (340) and a buckle (350) mounted outside the cushions (310), and a spring (360) arranged outside the cushions (310).

2. A reducer gear shaft wear detection device according to claim 1, characterized in that: The mechanism to be tested (100) comprises a reducer (110), a transmission shaft (120) movably mounted in an end tube on one side outside the reducer (110), and a rotation-assisting shaft (130) movably mounted in the reducer (110).

3. The reducer gear shaft wear detection device according to claim 1, characterized in that: Two rectangular end plates at the top and bottom of the first gasket (210) are provided with threaded transverse holes adapted to fit the compression screw (230); The compression screw rod (230) passes through the second gasket (220) and is connected to an end thereof with a sub-bolt.

4. The reducer gear shaft wear detection device according to claim 1, characterized in that: The first pressure-resistant outer plate (240) and the second pressure-resistant outer plate (250) are both made of an aluminum alloy material; sleeves are installed in the middle of the first pressure-resistant outer plate (240) and the second pressure-resistant outer plate (250); and threaded vertical holes are opened in the column heads at the tops of the sleeves.

5. The reducer gear shaft wear detection device according to claim 1, characterized in that: A fan-shaped pressing block is installed at the inner end of the cushion (310), and a cross-shaped insert rod is fixedly installed at one end of the fan-shaped pressing block away from the auxiliary rotation shaft (130), while a gasket and a sub-bolt are provided at the outer end of the cross-shaped insert rod.

6. The reducer gear shaft wear detection device according to claim 1, characterized in that: The protective shell (320) is made of thickened silicone material.

7. The reducer gear shaft wear detection device according to claim 1, characterized in that: Two groups of rivets are fixedly installed in the adjacent ends of the buckle (350) and the clamp seat (340), and a conical column head is installed at one end of the clamp seat (340) away from the cushion (310).

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