CN113280778A

CN113280778A - Return clearance measuring device

Info

Publication number: CN113280778A
Application number: CN202110565023.7A
Authority: CN
Inventors: 叶晓通; 黄晶; 黄国辉
Original assignee: ADTECH (SHENZHEN) TECHNOLOGY CO LTD
Current assignee: ADTECH (SHENZHEN) TECHNOLOGY CO LTD
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-08-20

Abstract

The invention discloses a return clearance measuring device, which is used for detecting the return clearance of a speed reducer, wherein the speed reducer comprises an input shaft, a machine body and an output shaft, and the return clearance measuring device comprises: the first clamping mechanism is used for fixing the machine body; the second clamping mechanism is arranged on one side of the first clamping mechanism and used for fixing the input shaft; the swinging mechanism is arranged on one side of the first clamping mechanism, sleeved on the output shaft and used for driving the output shaft to rotate clockwise and anticlockwise under the action of external force; measuring mechanism, including first installed part and angle measurement device, angle measurement device installs on first installed part, including body and rotation axis, and the rotation axis is connected with swing mechanism to with the coaxial setting of output shaft, the body is used for exporting the result according to the turned angle of rotation axis. The return clearance measuring device can simply and quickly measure the return clearance value.

Description

Return clearance measuring device

Technical Field

The invention relates to the technical field of speed reducer detection, in particular to a return clearance measuring device.

Background

The speed reducer is an important transmission element, is usually connected between a motor and an application load, realizes transmission through the matching of gears, and has the advantages of high rigidity, high precision, high transmission efficiency, high torque and the like. The return clearance is an important performance parameter for measuring the speed reducer, during measurement, the input end is fixed, the input end rotates clockwise and anticlockwise, and when the output end bears +/-2% of torque, the output end has a small angular displacement, and the angular displacement is the return clearance and is also called back clearance.

In the related art, when the return clearance of the speed reducer is detected, firstly, a shell and an input shaft of the planetary speed reducer are locked, an external force is loaded on an output shaft through a push-pull dynamometer, the output shaft rotates clockwise and anticlockwise, then, the offset of the output shaft is measured through a dial indicator, and an approximate return clearance value is calculated through a trigonometric function relationship, so that the measuring process is complicated.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a return clearance measuring device which can obtain the return clearance value of a speed reducer relatively simply and quickly.

According to a first aspect of the present invention, a return clearance measuring apparatus for detecting a return clearance of a speed reducer, the speed reducer including an input shaft, a machine body, and an output shaft, the return clearance measuring apparatus includes: the first clamping mechanism is used for fixing the machine body; the second clamping mechanism is arranged on one side of the first clamping mechanism and used for fixing the input shaft; the swinging mechanism is arranged on one side of the first clamping mechanism, sleeved on the output shaft and used for driving the output shaft to rotate clockwise and anticlockwise under the action of external force; the measuring mechanism comprises a first mounting part and an angle measuring device, the angle measuring device is mounted on the first mounting part and comprises a body and a rotating shaft, the rotating shaft is connected with the swinging mechanism and is coaxially arranged with the output shaft, and the body is used for outputting a result according to the rotating angle of the rotating shaft.

The return clearance measuring device provided by the embodiment of the invention at least has the following beneficial effects: fix organism and input shaft respectively through first clamping mechanism and second clamping mechanism, and locate on the output shaft through the swing mechanism cover, and angle measuring device's rotation axis is connected with swing mechanism, and with the coaxial setting of output shaft, thereby swing mechanism can drive output shaft and rotation axis and carry out clockwise and anticlockwise rotation respectively under the exogenic action, thereby angle measuring device's body can carry out the output result according to the turned angle of the rotation axis of self, obtain the return stroke clearance of speed reducer, it is simple and convenient to measure.

According to some embodiments of the present invention, the first clamping mechanism includes a first clamping member, a second clamping member, a first driving member, and a first fixing member, the first clamping member and the second clamping member are disposed opposite to each other, the speed reducer is located between the first clamping member and the second clamping member, and the first driving member is mounted on the first fixing member and is configured to drive the second clamping member to move toward the first clamping member to clamp the machine body, or to drive the second clamping member to move away from the first clamping member to release the machine body.

According to some embodiments of the present invention, the first clamping mechanism further includes a first guiding element, one end of the first guiding element is connected to the first clamping element, the second clamping element is provided with a first through hole, the other end of the first guiding element penetrates through the first through hole, and the second clamping element can move relative to the first guiding element.

According to some embodiments of the invention, the first through hole includes a first through portion and a second through portion, the aperture of the first through portion is smaller than the aperture of the second through portion, the first clamping mechanism further includes an elastic member, the elastic member is sleeved on the first guide member, one end of the elastic member is connected with the first clamping member, and the other end of the elastic member extends into the second through portion.

According to some embodiments of the invention, the other end of the first guiding element passes through the first through hole and then is connected with the first fixing element.

According to some embodiments of the invention, the second clamping mechanism includes a second fixing member, a second driving member mounted on the second fixing member, a third clamping member inserted into the input shaft, and a blocking member disposed on opposite sides of the third clamping member, the third clamping member being capable of being clamped between the second driving member and the blocking member to clamp the input shaft under the driving of the second driving member.

According to some embodiments of the present invention, the swing mechanism includes a first connecting member, a swing member, and a second connecting member, the first connecting member and the second connecting member are disposed at two opposite ends of the swing member along an axial direction of the output shaft, the first connecting member is sleeved on the output shaft, the second connecting member is sleeved on the rotating shaft, and the swing member is configured to drive the output shaft to rotate clockwise and counterclockwise under an external force.

According to some embodiments of the present invention, the swing mechanism further includes an adaptor, the swing member is sleeved on the adaptor, the first connecting member is sleeved on one end of the adaptor, the second connecting member is sleeved on the other end of the adaptor, and the adaptor, the output shaft and the rotating shaft are coaxially disposed.

According to some embodiments of the invention, the first and second connectors are each detachably connected to the swinging member.

According to some embodiments of the present invention, the swinging member is made of a magnetic material, and the return gap measuring apparatus further includes an auxiliary supporting mechanism, the auxiliary supporting mechanism includes a second mounting member and a magnetic member, the magnetic member is connected to the second mounting member, and the magnetic member can be attracted to the swinging member to support the swinging member to be in a horizontal state before testing.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

fig. 1 is a schematic structural diagram of a return gap measuring apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the main clamping mechanism of FIG. 1;

FIG. 3 is a schematic view of the upper clamp, guide and resilient member of FIG. 2;

FIG. 4 is a schematic structural view of the side clamping mechanism of FIG. 1;

FIG. 5 is an exploded view of the swing mechanism of FIG. 1;

FIG. 6 is a schematic view of the mounting direction of the swing mechanism and the reducer in FIG. 5;

FIG. 7 is a schematic structural view of the measuring mechanism of FIG. 1;

fig. 8 is a schematic structural view of the auxiliary supporting mechanism in fig. 1.

Reference numerals:

a return gap measuring device 100;

the clamping device comprises a first clamping mechanism 110, a first clamping piece 111, a first notch 1111, a second clamping piece 112, a second notch 1121, a first through hole 1122, a first through part 11221, a second through part 11222, a first driving piece 113, a first fixing piece 114, a second through hole 1141, a first guide piece 115 and an elastic piece 116;

the second clamping mechanism 120, the second fixing member 121, the third through hole 1211, the second driving member 122, the third clamping member 123, the mounting block 1231, the positioning shaft 1232 and the blocking member 124;

the swing mechanism 130, the first connector 131, the fourth through hole 1311, the first mounting portion 1312, the second mounting portion 1313, the first fixing bolt 1314, the swing member 132, the connecting portion 1321, the swing portion 1322, the suspending portion 1323, the groove 1324, the second connector 133, the fifth through hole 1331, the third mounting portion 1332, the fourth mounting portion 1333, the second fixing bolt 1334, the adaptor 134, the first adaptor 1341, and the second adaptor 1342;

the measuring mechanism 140, the first mounting part 141, the angle measuring device 142, the body 1421, the third guide 143, the second slider 144, the second handle 145 and the second limit block 146;

the auxiliary supporting mechanism 150, the second mounting part 151, the magnetic member 152, the supporting plate 1521, the magnet 1522, the second guiding member 153, the first sliding member 154, the first handle 155 and the first limiting block 156;

a base 160, a third handle 161;

a speed reducer 200;

a body 210;

an output shaft 220.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 to 8, a return clearance measuring apparatus 100 according to an embodiment of the present invention is used for detecting a return clearance of a speed reducer 200, where the speed reducer 200 includes an input shaft (not shown), a machine body 210 and an output shaft 220. The return gap measuring apparatus 100 includes a first clamping mechanism 110, a second clamping mechanism 120, a swinging mechanism 130, and a measuring mechanism 140. .

Referring to fig. 1, the first clamping mechanism 110 is used for fixing the machine body 210; the second clamping mechanism 120 is disposed at one side of the first clamping mechanism 110, and is used for fixing the input shaft; the swing mechanism 130 is disposed at one side of the first clamping mechanism 120, sleeved on the output shaft 220, and used for driving the output shaft 220 to rotate clockwise and counterclockwise under the action of an external force; the measuring mechanism 140 includes a first mounting member 141 and an angle measuring device 142, the angle measuring device 142 is mounted on the first mounting member 141, and includes a body 1421 and a rotating shaft (not shown in the figure), the rotating shaft is connected to the swing mechanism 130 and is coaxially disposed with the output shaft 220, and the body 1421 is configured to output a result according to a rotation angle of the rotating shaft.

Above-mentioned return clearance measuring device 100, fix organism 210 and input shaft respectively through first clamping mechanism 110 and second clamping mechanism 120, and locate on output shaft 220 through swing mechanism 130 cover, and angle measuring device 142's rotation axis is connected with swing mechanism 130, and with the coaxial setting of output shaft 220, thereby swing mechanism 130 can drive output shaft 220 and rotation axis and carry out clockwise and anticlockwise rotation respectively under the exogenic action, thereby angle measuring device 142's body can carry out the output result according to the turned angle of the rotation axis of self, obtain speed reducer 200's return clearance, it is simple and convenient to measure.

The return gap measuring device 100 in the present embodiment is used to detect the return gap of the planetary speed reducer, and in other embodiments, the return gap measuring device 142 is a rotary encoder, and in other embodiments, a device such as a grating meter or an angle sensor may be used to output a result according to the adjustment, and the adjustment may be performed and applied to the detection of the return gap of other types of speed reducers.

Referring to fig. 2, in an embodiment of the present invention, the first clamping mechanism 110 includes a first clamping member 111, a second clamping member 112, a first driving member 113 and a first fixing member 114, the first clamping member 111 and the second clamping member 112 are disposed opposite to each other, the speed reducer 200 is located between the first clamping member 111 and the second clamping member 112, and the first driving member 113 is mounted on the first fixing member 114 and is configured to drive the second clamping member 112 to move toward the first clamping member 111 to clamp the machine body 210, or drive the second clamping member 112 to move away from the first clamping member 111 to loosen the machine body, so as to clamp and loosen the speed reducer 200.

Specifically, the first clamping member 111 and the second clamping member 112 in this embodiment are substantially square, the first clamping member 111 and the second clamping member 112 are disposed along a direction perpendicular to the output shaft 220, wherein the direction of the output shaft 220 is a horizontal direction, the direction of the first clamping member 111 and the second clamping member 112 in this embodiment is an up-down direction, and the second clamping member 112 is located above the first clamping member 111 and is disposed opposite to the first clamping member 111. In other embodiments, the first clamping member 111 and the second clamping member 112 may be placed on the same plane, the speed reducer 200 is located between the first clamping member 111 and the second clamping member 112, and the first driving member 113 and the first fixing member 114 are located at one side of the second clamping member 112, so as to drive the second clamping member 112 to move toward the first clamping member 111.

A first notch 1111 is formed at one end of the first clamping member 111 close to the second clamping member 112, a second notch 1121 is formed at one end of the second clamping member 112 close to the first clamping member 111, and the second notch 1121 and the first notch 1111 are oppositely disposed for accommodating the body 210.

In order to facilitate the second clamping member 112 to be separated from the first clamping member 111 in the predetermined direction without being deflected when the speed reducer 200 is loosened, the first clamping mechanism 110 further includes a first guide 115, one end of the first guide 115 is connected to the first clamping member 111, the second clamping member 112 is provided with a first through hole 1122, the other end of the first guide 115 penetrates the first through hole 1122, and the second clamping member 1122 is movable relative to the first guide 115, so that the second clamping member 1122 can move in the predetermined direction of the first guide 115 when the second clamping member 112 is loosened.

In one embodiment of the present invention, the first guide 115 has a cylindrical shape, and the first clamping mechanism 110 further includes two first guides 115, and the two first guides 115 are disposed at opposite ends of the first clamping mechanism 110 in a vertical direction.

Referring to fig. 3, in order to facilitate the separation of the second clamping member 112 relative to the first clamping member 111, the first clamping mechanism 110 further includes an elastic member 116, the first through hole 1122 includes a first through portion 11221 and a second through portion 11222, an aperture of the first through portion 11221 is smaller than an aperture of the second through portion 11222, the elastic member 116 is sleeved on the first guide member 115, one end of the elastic member 116 is connected to the first clamping member 111, and the other end of the elastic member extends into the second through portion 11222, so that the position of the first through portion 11221 is equivalent to a step, and the step can apply pressure to the elastic member 116 to compress the elastic member 116 under the driving of the first driving member 113; when the first driving member 113 releases the second clamping member 112, the second clamping member 112 can be ejected away from the first clamping member 111 by the elastic force of the elastic member 116, so that the second clamping member 112 can be separated from the first clamping member 111.

In an embodiment of the present invention, since the second clamping member 112 and the first clamping member 111 are disposed in a vertical relationship, in order to facilitate the operation of the first driving member 113, the other end of the first guide 115 passes through the first through hole 1122 and then is connected to the first fixing member 114, so that the second clamping member 112, the first clamping member 111, and the first fixing member 114 are connected as a whole.

The middle portion of the first fixing member 114 forms a second through hole 1141, and the first driving member 113 is disposed in the second through hole 1141 and connected to an inner wall of the second through hole 1141.

The first driving member 113 in this embodiment is a quick clamp, specifically, a push-pull quick clamp. The push rod of the quick clamp is fixedly connected to the second clamping member 112 so that the second clamping member 112 is pushed up and down along the first guide 115 by a wrench pushing the quick clamp. In other embodiments, the first driving member 113 may also be designed with other driving mechanisms, such as a hydraulic rod, capable of pushing the second clamping member 112 to move up and down.

Referring to fig. 4, in an embodiment of the invention, the second clamping mechanism 120 includes a second fixing element 121, a second driving element 122, a third clamping element 123 and a blocking element 124, the second driving element 122 is mounted on the second fixing element 121, the third clamping element 123 is inserted into the input shaft, the second driving element 122 and the blocking element 124 are disposed on opposite sides of the third clamping element 123, and the third clamping element 123 can be clamped between the second driving element 122 and the blocking element 124 under the driving of the second driving element 122 to clamp the input shaft, so that the input shaft of the speed reducer 200 is fixed. It can be understood that the direction of the driving force applied by the second driving member 122 to the third clamping member 123 is perpendicular to the axial direction of the input shaft of the speed reducer 200, so that the input shaft of the speed reducer 200 is fixed and does not rotate during the detection process.

Specifically, the second fixing member 121 is formed with a third through hole 1211, and the second driving member 122 passes through the third through hole 1211 and is fixed on an inner wall of the third through hole 1211.

Specifically, the second driving member 122 in this embodiment is a quick clamp, and is a push-pull quick clamp, and a push rod of the quick clamp can apply a force to the third clamping member 123 under the pushing of a wrench, wherein, understandably, an axial direction of the push rod of the quick clamp is perpendicular to an axial direction of the speed reducer.

The third clamping member 123 includes an installation block 1231 and a positioning shaft 1232, the positioning shaft 1232 is fixedly installed on the installation block 1231, the positioning shaft 1232 extends into the input shaft of the speed reducer 200, and the installation block 1231 is clamped between the push rod of the quick clamp and the blocking member 124.

Wherein, third clamping piece 123 in this embodiment is independent setting to when needing to measure return clearance value many times, can drive the output shaft through location axle 1232 and rotate.

Referring to fig. 5 and 6, the swing mechanism 130 in the embodiment of the present invention includes a first connecting element 131, a swing element 132, and a second connecting element 133, the first connecting element 131 and the second connecting element 133 are disposed at two opposite ends of the swing element 132 along an axial direction of the output shaft 220, the first connecting element 131 is sleeved on the output shaft 220, the second connecting element 133 is sleeved on a rotating shaft, the swing element 132 is configured to drive the output shaft 220 to rotate clockwise and counterclockwise respectively under an external force, the rotating shaft of the angle measuring device 142 rotates along with the output shaft 220, so that the angle measuring device 142 outputs a measurement result according to the rotation of the rotating shaft.

Specifically, in one embodiment of the present invention, the first and

second connection members

131 and 133 are detachably connected to the swing member 132, respectively. Thereby facilitating replacement of the speed reducer 200 and storage of the entire apparatus. For example, the first and second connecting

members

131 and 133 are detachably connected to the swinging member 132 by bolts, respectively.

The first connector 131 is provided with a fourth through hole 1311 penetrating in the axial direction of the output shaft 220, the first connector 131 includes a first mounting portion 1312 and a second mounting portion 1313, and the fourth through hole 1311 penetrates the first mounting portion 1312 and the second mounting portion 1313. The first mounting portion 1312 is flat and is adapted to be mounted on the swinging member 132. The second mounting portion 1313 is cylindrical and is fitted over the output shaft of the reduction gear 200. In order to fix the output shaft 220 of the reduction gear 200 to the second mounting portion 1313, the first coupling member 131 further includes a first fixing bolt 1314, and the first fixing bolt 1314 passes through the second mounting portion 1313 in the axial direction of the second mounting portion 1313 and abuts against the output shaft 220, thereby fixing the output shaft 220 in the first mounting portion 1312.

The second connector 133 is provided with a fifth through hole 1331 along the axial direction of the output shaft 220, and includes a third mounting portion 1332 and a fourth mounting portion 1333 along the axial direction of the output shaft 220, the third mounting portion 1332 is plate-shaped and is used for being mounted on the swinging member 132, and the fourth mounting portion 1333 is cylindrical and is sleeved on the rotating shaft of the rotary encoder. In order to fix the rotation shaft of the rotary encoder to the fourth mounting portion 1333, the second connector 133 further includes a second fixing bolt 1334, and the second fixing bolt 1334 passes through the fourth mounting portion 1333 in the radial direction of the fourth mounting portion 1333 and abuts against the rotation shaft of the rotary encoder, thereby fixing the rotation shaft of the rotary encoder to the second connector 133.

The first mounting portion 1312 of the first connecting member 131 and the third mounting portion 1432 of the second connecting member 133 are respectively fixedly mounted on two end surfaces of the swinging member 132 along the axial direction of the output shaft 220 by bolts.

Referring to fig. 5 and 6, in an embodiment of the present invention, in order to enable the output shaft 220 and the rotation shaft of the angle measuring device 142 to be always on the same straight line, the swing mechanism 130 further includes an adaptor 134, the swing member 132 is sleeved on the adaptor 134, the first mounting portion 1312 of the first connecting member 131 is sleeved on one end of the adaptor 134, the third mounting portion 1332 of the second connecting member 133 is sleeved on the other end of the adaptor 134, and the adaptor 134, the output shaft 220 and the rotation shaft are coaxially disposed, so that the adaptor 134, the output shaft 220 and the rotation shaft can be always on the same straight line by disposing the adaptor 134.

In an embodiment of the present invention, the angle measuring device 142 is a rotary encoder, a rotating shaft thereof can rotate relative to the body 1421, and a diameter of the output shaft 220 of the speed reducer 200 in this embodiment is larger than an outer diameter of the rotating shaft of the rotary encoder, so that the adaptor 134 in this embodiment correspondingly includes a first adaptor 1341 with a larger outer diameter and a second adaptor 1342 with a smaller outer diameter, wherein the first mounting portion 1312 is sleeved on the first adaptor 1341, and the third mounting portion 1332 is sleeved on the second adaptor 1342.

Referring to fig. 5, in an embodiment of the present invention, perpendicular to the axial direction of the output shaft 220, the swinging member 132 includes a connecting portion 1321 and two swinging portions 1322 disposed at two opposite ends of the connecting portion 1321, the adaptor 134 penetrates the connecting portion 1321, along the axial direction of the output shaft 220, two ends of the connecting portion 1321 are respectively used for connecting with the first connecting member 131 and the second connecting member 133, and by arranging two swinging portions 1322 on the swinging member 132 along the axial direction of the output shaft 220, an external force can be respectively applied to each swinging portion 1322, so that the output shaft 220 can be driven to rotate clockwise or counterclockwise to measure the return clearance.

In the embodiment, the external force is applied by suspending the weight 300 at the free end of each of the swinging portions 1322, and the output shaft 220 is driven to rotate by the gravity of the weight 300. It is to be understood that, in order to facilitate the suspension of the weight 300 on the swinging portions 1322, a suspending portion 1323 is provided at a free end of each swinging portion 1322, a groove 1324 is formed between the suspending portion 1323 and the swinging portion 1322, a pulling rope for suspending the weight 300 can be easily suspended in the groove 1324, and the weight 300 can be prevented from falling.

Referring to fig. 1 and 7, in an embodiment of the present invention, the swinging member 132 is made of a magnetic material, and the return gap measuring apparatus 100 further includes an auxiliary supporting mechanism 150 for supporting the swinging member 132 to a horizontal position before the test.

Specifically, the auxiliary supporting mechanism 150 includes a second mounting member 151 and a magnetic member 152, the magnetic member 152 is connected to the second mounting member 151, and the magnetic member 152 can be engaged with the swinging member 132 for supporting the swinging member 132 in a horizontal state before the test.

The magnetic member 152 includes a support plate 1521 and a magnet 1522 embedded in the support plate 1521, the support plate 1521 is installed on the second installation member 151 in the vertical direction, the upper surface of the magnet 1522 is flush with the upper surface of the support plate 1521, and when the support plate 1521 is placed on the horizontal plane, the upper surface of the magnet 1522 and the upper surface of the support plate 1521 are in the horizontal state, so that the magnet 1522 is attracted to the swinging member 132 before testing, and the swinging member 132 is in the horizontal position.

In addition, in order to facilitate the movement of the second mounting part 151 and the magnetic member 152 during testing, the auxiliary supporting mechanism 150 further includes a second guiding part 153 and a first sliding part 154, the length direction of the second guiding part 153 and the first sliding part 154 is the axial direction of the output shaft 220, the first sliding part 154 is disposed at the bottom of the second mounting part 151, the first sliding part 154 is slidably connected with respect to the second guiding part 153, and the magnetic member 152 is disposed at the end of the second mounting part 151, so that the magnetic member 152 can be conveniently moved away from the swinging part 132 when testing is required.

In this embodiment, the second guide 153 is a linear guide, and the first sliding member 154 is a sliding block.

In addition, in order to facilitate the movement of pushing the second mounting part 151 and the magnetic member 152, the auxiliary supporting mechanism 150 further includes a first handle 155 in this embodiment, the first handle 155 is disposed on the top of the second mounting part 151, and is disposed at two ends of the second mounting part 151 opposite to the magnetic member 152.

When the test requires to remove the second mounting member 151 and the magnetic member 152, the first sliding member 154 is prevented from sliding out of the second guiding member 153 excessively, and the auxiliary supporting mechanism 150 further includes two first limiting blocks 156, and the two first limiting blocks 156 are disposed on two opposite sides of the first mounting member in the moving direction.

Referring to fig. 8, in an embodiment of the present invention, in order to facilitate the movement of the angle measuring device 142, the measuring mechanism 140 further includes a third guiding element 143 and a second sliding element 144, a length direction of the third guiding element 143 and the second sliding element 144 is an axial direction of the output shaft 220, the second sliding element 144 is disposed at a bottom of the first mounting element 141, and the second sliding element 144 is slidably connected to the third guiding element 143, so that when a test is required, the rotating shaft of the angle measuring device 142 is pushed into the second connecting element 133 and then locked by the second fixing bolt 1344.

When the position of the input shaft of the decelerator 200 is adjusted, that is, the measuring mechanism 140 is disassembled after one measurement is completed, it is sufficient to push the first mounting member 141 to slide with respect to the third guide member 143.

In this embodiment, the third guiding element 143 is a sliding rail, and the second sliding element 144 is a sliding block.

In addition, the first mounting part 141 is conveniently pushed to slide relative to the third guide part 143, and the measuring mechanism 140 further comprises a second handle 145, wherein the second handle 145 is arranged on the first mounting part 141, and the first mounting part 141 is driven to slide relative to the third guide part 143 by pushing the second handle 145.

In order to prevent the first mounting member 141 and the angle measuring device 142 from slipping out when sliding relative to the third guide member 143, the measuring mechanism 140 further includes two second stoppers 146, and the two second stoppers 146 are disposed at opposite ends of the third guide member 143 in the longitudinal direction and used for limiting the sliding distance of the second sliding member 144.

In addition, referring to fig. 1, in an embodiment of the present invention, in order to facilitate the transportation of the entire measuring apparatus, the return gap measuring apparatus 100 further includes a base 160, and the first clamping mechanism 110, the second clamping mechanism 120 and the measuring mechanism 140 are disposed on the base 160, so that the transportation of the entire measuring apparatus is facilitated.

It is to be understood that, for convenience of carrying, two third handles 161 may be provided at opposite ends of the base 160, and the entire return gap measuring apparatus 100 may be carried by lifting the two third handles 161.

The detection process of the return gap measuring apparatus 100 is as follows: placing the speed reducer 200 on the first clamping member 111 of the first clamping mechanism 110, pushing the handle of the first driving member 113 to drive the second clamping member 112 to move downwards, and clamping the speed reducer 200 between the first clamping member 111 and the second clamping member 112; inserting the third clamping member 123 of the second clamping mechanism 120 into the input shaft of the speed reducer 200, and pushing the top rod of the second driving member 122 to move in the direction of the third clamping member 123, so that the third clamping member 123 is clamped between the second driving member 122 and the blocking member 124, thereby fixing the input shaft of the speed reducer 200 at this time; sleeving a first connecting piece 131 in the swinging mechanism 130 on an output shaft 220 of the speed reducer 200, installing an adapter piece 134, a swinging piece 132 and a second connecting piece 133 on the first connecting piece 131 as a whole, enabling the swinging piece 132 to be in a horizontal position, pushing the auxiliary supporting mechanism 150 to move towards the swinging piece 132, enabling the magnetic piece 152 to suck the swinging piece 132, enabling the swinging piece 132 to be kept in a horizontal state, and locking the output shaft 220 of the speed reducer 200 on the first connecting piece 131 through a first fixing bolt 1314; the first mounting member 141 and the angle measuring device 142 are moved toward the second connecting member 133, so that the rotating shaft of the angle measuring device 142 is inserted into the second connecting member 133, and the rotating shaft of the angle measuring device 142 is locked in the second connecting member 133 by the second fixing bolt 1344.

After the installation is completed, hanging a weight 300 with a proper weight on one swinging part 1322 of the swinging member 132, so that the swinging member 132 can drive the output shaft 220 to rotate clockwise, removing the auxiliary supporting mechanism 150, and recording a first angle value a of the angle measuring device 142 at the moment; the weight 300 is taken down, the swinging member 132 is adjusted to be in a horizontal state, and then the weight 300 is suspended to a swinging part 1322 of the swinging member 132, so that the swinging member 132 can drive the output shaft 220 to rotate counterclockwise, a second angle value b of the angle measuring device 142 at the moment is recorded, wherein the value b is recorded as a negative value, and the return clearance value of the speed reducer 200 is obtained by the difference value between the value a and the value b.

In order to make the measured data more accurate, the measuring mechanism 140 and the second clamping mechanism 120 may be detached, and the third clamping member 123 of the second clamping mechanism 120 drives the input shaft to rotate for a plurality of circles in one direction, and then the measurement is performed, and the maximum value is obtained after a plurality of measurements, so as to obtain the return clearance value of the speed reducer 200.

The return clearance measuring device 100 is provided with the base 160, and the third handle 161 is arranged on the base 160, so that the whole measuring device is convenient to carry; an auxiliary supporting mechanism 150 is arranged to facilitate adjusting the swinging member 132 in the swinging mechanism 130 to be in a horizontal state so as to improve the measurement accuracy; by further providing the second guide 153 and the first slider 154 in the auxiliary support mechanism 150, the movement of the auxiliary support mechanism 150 is facilitated; the movement of the result output 142 is facilitated by the provision of a third guide 143 and a second slide 144 in the measuring mechanism 140.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims

1. Return clearance measuring device for return clearance to the speed reducer detects, the speed reducer includes input shaft, organism and output shaft, its characterized in that, return clearance measuring device includes:

the first clamping mechanism is used for fixing the machine body;

the second clamping mechanism is arranged on one side of the first clamping mechanism and used for fixing the input shaft;

the swinging mechanism is arranged on one side of the first clamping mechanism, sleeved on the output shaft and used for driving the output shaft to rotate clockwise and anticlockwise under the action of external force;

the measuring mechanism comprises a first mounting part and an angle measuring device, the angle measuring device is mounted on the first mounting part and comprises a body and a rotating shaft, the rotating shaft is connected with the swinging mechanism and is coaxially arranged with the output shaft, and the body is used for outputting a result according to the rotating angle of the rotating shaft.

2. The return gap measuring device according to claim 1, wherein the first clamping mechanism includes a first clamping member, a second clamping member, a first driving member, and a first fixing member, the first clamping member and the second clamping member are disposed opposite to each other, the speed reducer is located between the first clamping member and the second clamping member, and the first driving member is mounted on the first fixing member and is configured to drive the second clamping member to move in a direction of the first clamping member to clamp the machine body or drive the second clamping member to move away from the first clamping member to release the machine body.

3. The return gap measuring device according to claim 2, wherein the first clamping mechanism further includes a first guide member, one end of the first guide member is connected to the first clamping member, the second clamping member is provided with a first through hole, the other end of the first guide member penetrates through the first through hole, and the second clamping member is capable of moving relative to the first guide member.

4. The return gap measuring device according to claim 3, wherein the first through hole includes a first through portion and a second through portion, an aperture of the first through portion is smaller than an aperture of the second through portion, the first clamping mechanism further includes an elastic member, the elastic member is fitted over the first guide member, one end of the elastic member is connected to the first clamping member, and the other end of the elastic member extends into the second through portion.

5. The return gap measuring device according to claim 3, wherein the other end of the first guide member is connected to the first fixing member after passing through the first through hole.

6. The return gap measuring apparatus according to claim 1, wherein the second clamp mechanism includes a second fixing member, a second driving member, a third clamp member, and a stopper member, the second driving member being mounted on the second fixing member, the third clamp member being inserted into the input shaft, the second driving member and the stopper member being provided on opposite sides of the third clamp member, the third clamp member being capable of being clamped between the second driving member and the stopper member to clamp the input shaft by driving of the second driving member.

7. The return clearance measuring device according to claim 1, wherein the swing mechanism includes a first connecting member, a swing member, and a second connecting member, the first connecting member and the second connecting member are disposed at opposite ends of the swing member along an axial direction of the output shaft, the first connecting member is sleeved on the output shaft, the second connecting member is sleeved on the rotating shaft, and the swing member is configured to drive the output shaft to rotate clockwise and counterclockwise respectively under an external force.

8. The return clearance measuring device according to claim 7, wherein the swing mechanism further includes an adaptor, the swing member is sleeved on the adaptor, the first connecting member is sleeved on one end of the adaptor, the second connecting member is sleeved on the other end of the adaptor, and the adaptor, the output shaft and the rotating shaft are coaxially disposed.

9. The return gap measuring device according to claim 7, wherein the first link member and the second link member are detachably connected to the swinging member, respectively.

10. The apparatus according to claim 7, wherein the oscillating member is made of a magnetic material, and the apparatus further comprises an auxiliary supporting mechanism, the auxiliary supporting mechanism comprises a second mounting member and a magnetic member, the magnetic member is connected to the second mounting member, and the magnetic member can be engaged with the oscillating member to support the oscillating member in a horizontal state before testing.