CN205537463U - A precision planetary reducer backlash measuring device - Google Patents

Abstract

The utility model discloses a back clearance measuring device of an accurate planetary reducer, wherein a speed reducer supporting block is screwed on the upper surface of a fixed bottom plate, a speed reducer clamping component is arranged on the upper end side of the speed reducer supporting block, and an input shaft fixed component and an output shaft clamping component are arranged on the upper end side of the fixed bottom plate; the input shaft fixing assembly comprises an input side fixing bottom plate, an input side fixing vertical plate and an input side shaft sleeve, wherein an input shaft fixing part is arranged at the front end part of the input side shaft sleeve, a feed screw rod is screwed in a center hole of the input side shaft sleeve, and an input shaft fixing driving block is screwed at the front end part of the feed screw rod; the output shaft clamping assembly comprises an output side fixing bottom plate, two output side fixing vertical plates, an output shaft chuck and a chuck driving nut; the periphery of the output shaft chuck is sleeved with a force arm fixing block, the force arm fixing block is provided with a rotary force arm, and the front output side is fixed with a vertical plate which is provided with an angle dial. Through the design, the utility model has the advantages of modern design, simple structure, preparation are with low costs, reliable and stable nature is good, measurement accuracy is high and efficient.

Description

A precision planetary reducer backlash measuring device

technical field

The utility model relates to the technical field of reducers, in particular to a precision planetary reducer backlash measuring device.

Background technique

The domestic reducer industry is relatively weak in the production of precision planetary reducers, especially high-precision reducers are a big threshold; among them, the important index to measure the precision of planetary reducers is the backlash of the reducer (also called return clearance). Further explanation is required. The definition of backlash is: the input shaft of the reducer is fixed, the output shaft rotates clockwise and counterclockwise, and when the output shaft is applied with a torque of ±2% of the rated torque, the output shaft of the reducer has a slight angular displacement. , the angular displacement is the return clearance, the unit is arcmin (arcmin), 1 arcmin = 1/60 degree.

It should be further pointed out that in the process of using the existing backlash detection shaft to detect the backlash of the planetary reducer, the following defects generally exist in the prior art, specifically: 1. The existing domestic standard planetary reducer backlash detection method is relatively simple , the detection data is inaccurate; 2. The installation of the reducer detection process is complicated and the use time is long; 3. The backlash value cannot be measured intuitively, and professional conversion and calculation are required.

Contents of the invention

The purpose of this utility model is to provide a precision planetary reducer backlash measuring device for the deficiencies of the prior art. The precision planetary reducer backlash measuring device is novel in design, simple in structure, low in preparation cost, stable and reliable, High precision and high measurement efficiency.

In order to achieve the above object, the utility model is realized through the following technical solutions.

A precision planetary reducer backlash measuring device, including a fixed bottom plate arranged horizontally and horizontally, the upper surface of the fixed bottom plate is screw-mounted with a reducer support block, and the upper end of the reducer support block is provided with a V-shaped groove, and the reducer supports The upper end of the block is equipped with a reducer clamping assembly on the upper end side of the V-shaped groove, and the upper end side of the fixed bottom plate is relatively movable back and forth. The output shaft clamping assembly at the front end side of the support block;

The input shaft fixing assembly includes an input side fixed installation frame, and the input side fixed installation frame includes an input side fixed bottom plate arranged horizontally and horizontally, an input side fixed vertical plate installed on the input side fixed bottom plate and arranged vertically, and the input side The upper end of the fixed vertical plate is provided with a shaft sleeve installation hole that completely penetrates the front and back. The shaft sleeve installation hole is threaded with an input side shaft sleeve coaxially arranged with the shaft sleeve installation hole. The front end of the input side shaft sleeve is provided with a planetary The input shaft fixing part matched with the input hole of the input shaft of the reducer, the inner screw in the center hole of the shaft sleeve on the input side is equipped with a feed screw whose rear end extends to the rear end side of the fixed vertical plate on the input side, and the feed screw The rear end of the feed screw is equipped with a screw driving hand wheel, and the front end of the feed screw is screwed with a screw that extends into the input shaft sleeve inside the input shaft fixing part, and when moving backward, the front end of the input shaft fixing part The fixed drive block of the input shaft pushed outwards;

The output shaft clamping assembly includes a fixed installation frame on the output side. The fixed installation frame on the output side includes a fixed bottom plate on the output side arranged horizontally and horizontally. The output side fixed vertical plate, the output shaft chuck is installed relatively rotatable between the two output side fixed vertical plates, the front end and the rear end of the output shaft chuck are respectively set up on the output side fixed vertical plate on the corresponding side through bearings. plate, the rear end of the output shaft clamp extends to the rear end of the output side fixed vertical plate on the rear side, and the rear end of the output shaft clamp is provided with an output shaft that is open to the rear and matches the output shaft of the planetary reducer. Shaft clamping hole, the peripheral screw at the rear end of the output shaft chuck is equipped with a chuck drive nut that drives the output shaft clamping hole to become smaller in diameter when it is rotated backward;

Between the two fixed vertical plates on the output side, there is a force arm fixing block that is clamped on the periphery of the output shaft chuck. The force arm fixing block is equipped with a rotating force arm that protrudes outward and is connected to the weight by a pull cord at the end. , the upper end of the output side fixed vertical plate on the front side is equipped with an angle dial linked with the output shaft chuck.

Wherein, the clamping assembly of the reducer includes a support vertical plate screwed on the upper end of the support block of the reducer and protruding upward. The upper end of the support vertical plate is equipped with a driving toggle clamp. The drive end is equipped with a reducer pressing block located directly above the V-shaped groove.

Wherein, the input-side shaft sleeve is screwed with a protective sleeve on the periphery of the input shaft fixing portion, and the protective sleeve is coaxially arranged with the input-side shaft sleeve.

Wherein, the upper surface of the fixed bottom plate is screw-mounted with a guide rail extending horizontally along the front-rear direction, and the input-side fixed bottom plate and the output-side fixed bottom plate are respectively screw-mounted with sliders matching the guide rails.

The beneficial effect of the utility model is: a precision planetary reducer backlash measuring device described in the utility model, the support block of the reducer is screw-mounted on the upper surface of the fixed bottom plate, and the upper end of the V-shaped groove at the upper end of the support block of the reducer is installed on the side. The clamping assembly of the reducer is provided, and the input shaft fixing assembly and the output shaft clamping assembly are installed on the upper side of the fixed bottom plate; the input shaft fixing assembly includes the input side fixed installation frame, and the input side fixed installation frame includes the input side fixed bottom plate, the input side fixed vertical The input side shaft sleeve is screwed into the shaft sleeve installation hole at the upper end of the fixed vertical plate on the input side, the input shaft fixing part is arranged at the front end of the input side shaft sleeve, and the feed screw is screwed into the center hole of the input side shaft sleeve. The screw drive handwheel is installed on the screw rod, and the input shaft fixed drive block is screwed on the front end of the feed screw rod; the output shaft clamping assembly includes the output side fixed mounting bracket, the output side fixed mounting bracket includes the output side fixed bottom plate, the output side The vertical plate is fixed, the output shaft chuck is installed between the two fixed vertical plates on the output side, the output shaft clamping hole is opened at the rear end of the output shaft chuck, and the chuck driving nut is screwed on the rear end of the output shaft chuck; Between the two output side fixed vertical plates, a force arm fixed block set on the periphery of the output shaft chuck is installed. The force arm fixed block is equipped with a rotating force arm, and the upper part of the output side fixed vertical plate on the front side is installed with the output shaft clamp. Head linkage angle dial. Through the above structural design, the utility model has the advantages of novel design, simple structure, low preparation cost, good stability and reliability, high measurement accuracy and high measurement efficiency.

Description of drawings

The utility model is further described below using the drawings, but the embodiments in the drawings do not constitute any limitation to the utility model.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural diagram of the utility model in use.

Fig. 3 is a schematic cross-sectional view of the utility model.

In Figures 1 to 3 include:

1——fixed bottom plate 21——Reducer support block

22——Reducer Clamping Assembly 221——Support Riser

222 - drive elbow clamp 223——reducer pressing block

3——Input shaft fixing assembly 31——Input side fixed mounting bracket

311——Input side fixed bottom plate 312——Input side fixed vertical plate

3121——shaft sleeve installation hole 32——input side shaft sleeve

321——input shaft fixing part 331——feed screw rod

332——screw drive handwheel 34——input shaft fixed drive block

35 - Protective sleeve 4——output shaft clamping assembly

41——Fixed mounting bracket on the output side 411——Fixed bottom plate on the output side

412——Output side fixed vertical plate 42——Output shaft clamp

421——output shaft clamping hole 43——collet drive nut

51——Force arm fixed block 52——rotation arm

53 - drawstring 54 - weight

6——Angle dial 71 - guide rail

72 - Slider 8—Planetary reducer.

detailed description

The utility model will be described below in conjunction with specific embodiments.

As shown in Figures 1 to 3, a precision planetary reducer backlash measurement device includes a fixed base plate 1 arranged horizontally and horizontally, the upper surface of the fixed base plate 1 is screw-mounted with a reducer support block 21, and the reducer support block The upper end of 21 is provided with a V-shaped groove, and the upper end of the reducer support block 21 is equipped with a reducer clamping assembly 22 on the upper end side of the V-shaped groove. The input shaft fixing assembly 3 on the rear end side of the reducer support block 21 , and the output shaft clamping assembly 4 located on the front end side of the reducer support block 21 .

Further, the input shaft fixing assembly 3 includes an input side fixed installation frame 31, and the input side fixed installation frame 31 includes an input side fixed bottom plate 311 arranged horizontally and horizontally, and a vertically arranged fixed bottom plate 311 installed on the input side fixed bottom plate 311. The input-side fixed vertical plate 312, the upper end of the input-side fixed vertical plate 312 is provided with a shaft sleeve installation hole 3121 that completely penetrates the front and back, and the inner screw of the shaft sleeve installation hole 3121 is equipped with an input side shaft coaxially arranged with the shaft sleeve installation hole 3121 Sleeve 32, the front end of the input side sleeve 32 is provided with an input shaft fixing part 321 that matches the input hole of the input shaft of the planetary reducer 8, and the inner screw in the center hole of the input side sleeve 32 is provided with a rear end extending to The input side fixes the feed screw 331 on the rear end side of the vertical plate 312, the rear end of the feed screw 331 is equipped with a screw driving hand wheel 332, and the front end of the feed screw 331 is screwed with a screw that extends into the input The inside of the input shaft fixing portion 321 of the side sleeve 32 and the input shaft fixing drive block 34 that pushes the front end of the input shaft fixing portion 321 radially outward when moving backward.

Furthermore, the output shaft clamping assembly 4 includes an output-side fixed installation frame 41, and the output-side fixed installation frame 41 includes an output-side fixed bottom plate 411 arranged horizontally and transversely. The output-side fixed bottom plate 411 is equipped with two The output-side fixed risers 412 arranged vertically and arranged in parallel with each other at intervals. Between the two output-side fixed risers 412, an output shaft chuck 42 is relatively rotatable. The front end and the rear end of the output shaft chuck 42 are part of the output-side fixed riser 412 on the corresponding side through the bearing, the rear end of the output shaft chuck 42 extends to the rear end of the output-side fixed riser 412 on the rear side, the rear end of the output shaft chuck 42 There is an output shaft clamping hole 421 that is open to the rear and matches the output shaft of the planetary reducer 8. The outer periphery of the rear end of the output shaft clamp 42 is screwed with a screw that drives the output shaft clamping hole 421 when turning backwards. Collet drive nut 43 with reduced bore diameter.

In addition, between the two output-side fixed vertical plates 412 is installed a lever arm fixing block 51 which is clamped on the periphery of the output shaft chuck 42 . The rotating force arm 52 connected with the weight 54 , the upper end of the output side fixed vertical plate 412 on the front side is equipped with an angle dial 6 linked with the output shaft chuck 42 .

The utility model will be described in detail below in conjunction with the specific measurement process, specifically: the planetary reducer 8 is placed in the V-shaped groove of the reducer support block 21, and the input shaft of the planetary reducer 8 faces the input shaft fixing assembly 3- side, the output shaft of the planetary reducer 8 faces the side of the output shaft clamping assembly 4, and the planetary reducer 8 is clamped and fixed in the V-shaped groove of the reducer support block 21 through the reducer clamping assembly 22; After the motor 8 is clamped and fixed, move the input side fixed installation frame 31 and the output side fixed installation frame 41 forward and backward, so that the input shaft fixing part 321 of the input side sleeve 32 is aligned and inserted into the input shaft of the planetary reducer 8 In the input hole, the output shaft of the planetary reducer 8 is aligned and inserted into the output shaft clamping hole 421 of the output shaft chuck 42; after the input shaft and output shaft of the planetary reducer 8 are aligned, pass the screw The driving hand wheel 332 rotates the feed screw mandrel 331 and makes the feed screw mandrel 331 unscrew backward, and the feed screw mandrel 331 drives the input shaft fixed drive block 34 at its front end to move backward together. Driven by the input shaft fixing drive block 34 , the input shaft fixing portion 321 of the input side bushing 32 is pushed radially outward by the input shaft fixing driving block 34 , and finally the input shaft fixing portion 321 of the input side bushing 32 It is in close contact with the inner wall of the input hole of the input shaft of the planetary reducer 8, and then the input shaft of the planetary reducer 8 is fixed; after the input shaft of the planetary reducer 8 is fixed, turn the chuck driving nut 43 backwards, Driven by the head drive nut 43, the inner diameter of the output shaft clamping hole 421 of the output shaft chuck 42 becomes smaller gradually, and the inner wall of the output shaft clamping hole 421 tightly hugs the output shaft of the planetary reducer 8; After the output shaft of the machine 8 is tightly held by the output shaft chuck 42, the rotating force arm 52 is pulled by the weight 54, and the rotating force arm 52 drives the power arm fixing block 51, the output shaft chuck 42 and the output shaft of the planetary reducer 8 to rotate , that is, the weight 54 provides torque for the output shaft of the planetary reducer 8 , and after the output shaft chuck 42 is rotated in place, the corresponding backlash value can be read through the angle dial 6 .

It should be further pointed out that the utility model can also add a corresponding digital display dial indicator structure, so that the backlash value can be read intuitively and quickly through the digital display dial indicator.

Based on the above situation, it can be seen that through the above structural design, the utility model can conveniently and quickly measure the backlash of the precision planetary reducer 8, and the overall structure is relatively simple, and the preparation cost is low; therefore, the utility model has novel design, structural The method has the advantages of simplicity, low preparation cost, good stability and reliability, high measurement accuracy and high measurement efficiency.

As shown in Figure 1 and Figure 2, the clamping assembly 22 of the reducer includes a support vertical plate 221 that is screwed on the upper end of the support block 21 of the reducer and protrudes upwards, and the upper end of the support vertical plate 221 A driving toggle clamp 222 is installed on the upper part, and the driving end of the driving toggle clamp 222 is equipped with a reducer pressing block 223 directly above the V-shaped groove. During the clamping and positioning process of the planetary reducer 8, the planetary reducer 8 is first placed in the V-shaped groove of the reducer support block 21, and then the toggle clamp 222 is driven to move and the reducer pressing block 223 is moved downward. The novel planetary reducer 8 can be stably clamped and fixed through the cooperation of the reducer support block 21 and the reducer pressing block 223 .

As a preferred embodiment, as shown in FIG. 3 , the input side shaft sleeve 32 is screwed with a protective sleeve 35 on the periphery of the input shaft fixing portion 321 , and the protective sleeve 35 is arranged coaxially with the input side shaft sleeve 32 . During the measurement operation of the utility model, the input shaft fixing part 321 of the input side shaft sleeve 32 is inserted into the input hole of the input shaft of the planetary reducer 8, and the protective sleeve 35 is set on the input shaft of the planetary reducer 8 During the process that the input shaft fixing part 321 of the input side sleeve 32 is radially pushed outward by the input shaft fixing drive block 34, the protective sleeve 35 can effectively embrace the input shaft of the planetary reducer 8, thereby avoiding The input shaft of the planetary reducer 8 is deformed.

As a preferred embodiment, in order to ensure that the input shaft fixing assembly 3 and the output shaft clamping assembly 4 can move back and forth smoothly, the utility model adopts the following guide structure design, specifically: the upper surface of the fixed bottom plate 1 is screwed along the front and rear The guide rail 71 extending horizontally in the direction, the fixed bottom plate 311 on the input side and the fixed bottom plate 411 on the output side are respectively screwed with slide blocks 72 matched with the guide rail 71 .

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (4)

1. an accurate planetary reducer back clearance measurement apparatus, it is characterized in that: include the fixing base plate (1) arranged in horizontal cross, the upper surface of fixing base plate (1) is screwed with reductor and props up bracer (21), reductor props up the upper end of bracer (21) and offers V-groove, reductor props up the upper end of bracer (21) and is equiped with reductor clamp assembly (22) in the upper end side of V-groove, the upper end side of fixing base plate (1) can be equiped with relatively fore-aft travel be positioned at reductor and prop up the power shaft fixation kit (3) of bracer (21) rear end side, it is positioned at reductor and props up the output shaft clamp assembly (4) of bracer (21) front；

nullPower shaft fixation kit (3) includes input side fixing and mounting bracket (31)，Input side fixing and mounting bracket (31) includes the input side arranged in horizontal cross and fixes base plate (311)、It is installed in input side fix base plate (311) and fix riser (312) in the input side being vertically arranged，Input side fix before and after the upper end of riser (312) offers completely through axle sleeve installing hole (3121)，The input side axle sleeve (32) coaxially arranged with axle sleeve installing hole (3121) it is screwed with in axle sleeve installing hole (3121)，The leading section of input side axle sleeve (32) is provided with the power shaft fixed part (321) that the strength inlet opening with the power shaft of planetary reducer (8) matches，It is screwed with rearward end in the centre bore of input side axle sleeve (32) to extend to input side and fix the feed screw (331) of riser (312) rear end side，The rearward end of feed screw (331) is equiped with screw mandrel and drives handwheel (332)，Power shaft fixed drive block (34) that the leading section of power shaft fixed part (321) is radially backed down when being screwed with the inside of the power shaft fixed part (321) stretching to input side axle sleeve (32) and rear shifting by the leading section of feed screw (331)；

nullOutput shaft clamp assembly (4) includes outlet side fixing and mounting bracket (41)，Outlet side fixing and mounting bracket (41) includes the outlet side arranged in horizontal cross and fixes base plate (411)，Outlet side fix base plate (411) be equiped with two respectively in be vertically arranged and front and back parallel interval arrange outlet side fix riser (412)，Two outlet sides are fixed and are equiped with output shaft chuck (42) between riser (412) rotatably，The leading section of output shaft chuck (42)、The outlet side that rearward end is erected on corresponding side by bearing respectively fixes riser (412)，The rearward end of output shaft chuck (42) extends to the outlet side of rear side and fixes the rear end side of riser (412)，Output shaft clamping hole (421) that the rearward end of output shaft chuck (42) offers backward opening and the output shaft with planetary reducer (8) matches，The chuck driving the aperture of output shaft clamping hole (421) to diminish when the periphery of output shaft chuck (42) rearward end is screwed with turn backwards drives nut (43)；

Two outlet sides are fixed and are equiped with set between riser (412) and are stuck in the arm of force fixed block (51) that output shaft chuck (42) is peripheral, arm of force fixed block (51) is equiped with to protrude outwardly and extends and the end rotary arm (52) by stay cord (53) connection counterweight (54), and the outlet side of front side is fixed riser (412) upper end and is equiped with the angle dial (6) linked with output shaft chuck (42).

A kind of accurate planetary reducer back clearance measurement apparatus the most according to claim 1, it is characterized in that: described reductor clamp assembly (22) includes and is screwed on described reductor and props up bracer (21) upper end and towards protruding above the support riser (221) of extension, the upper end supporting riser (221) is equiped with driving elbow folder (222), drives the drive end of elbow folder (222) to be equiped with the reductor compact heap (223) being positioned at directly over described V-groove.

A kind of accurate planetary reducer back clearance measurement apparatus the most according to claim 2; it is characterized in that: described input side axle sleeve (32) is screwed with protection set (35) in the periphery of described power shaft fixed part (321), and protection set (35) is coaxially arranged with input side axle sleeve (32).

4. according to a kind of accurate planetary reducer back clearance measurement apparatus described in claims 1 to 3 any one, it is characterized in that: the upper surface of described fixing base plate (1) is screwed with along the horizontal-extending guide rail (71) of fore-and-aft direction, and described input side fixes base plate (311), described outlet side is fixed base plate (411) and is screwed with the slide block (72) matched with guide rail (71) respectively.