CN220288468U - Differential gear meshing inspection device - Google Patents

Abstract

The utility model relates to a differential gear meshing inspection device, wherein a main shaft seat and a sliding table are sequentially arranged on a base along the same direction, a first transmission part is arranged on the main shaft seat and connected with a half shaft gear, a second transmission part is arranged on the sliding table and connected with a planetary gear, the half shaft gear is driven to mesh with the planetary gear by rotation of a driving part, and the meshing condition of the half shaft gear and the planetary gear is judged by an indicator. The utility model designs a differential gear meshing inspection device, which can solve the technical problems that a conventional bevel gear rolling inspection machine needs manual visual inspection, and has high manual working strength, low product quality and low inspection efficiency.

Description

Differential gear meshing inspection device

Technical Field

The utility model relates to the field of differential assembly detection, in particular to a differential gear meshing inspection device.

Background

The planetary gear and the half-shaft gear are finish forge pieces, dimensional errors exist between the planetary gear and the half-shaft gear obtained through forging and forming and the theoretical shape, and when the differential assembly is used for driving an automobile, abnormal noise, jamming and other faults are often generated, so that the differential is assembled through shaping.

In the prior art, a bevel gear rolling inspection machine is generally used for inspecting the meshing degree of the planetary gears and the side gears, and the meshing degree of the planetary gears and the side gears is high when the tooth side clearance is within an error range by utilizing the judgment of the tooth side clearance generated during meshing, so that the planetary gears and the side gears can be used for differential assembly. However, the conventional bevel gear rolling inspection machine needs to manually judge whether the gear backlash is in an error range, and because the manual identification is not accurate enough, the manual identification has high working strength, and misjudgment can occur, so that the automobile fault is caused by assembly on a differential mechanism.

Accordingly, the prior art has drawbacks and needs to be improved and developed.

Disclosure of Invention

The embodiment of the utility model provides a differential gear meshing inspection device, which can solve the technical problems that a conventional bevel gear rolling inspection machine needs manual visual inspection, and has high manual working strength, low product quality and low inspection efficiency.

The embodiment of the utility model provides a differential gear meshing inspection device, which comprises a base, a main shaft seat, a sliding table, a driving piece, a half shaft gear, a planetary gear, an indicator, a first transmission piece and a second transmission piece, wherein the main shaft seat and the sliding table are sequentially arranged on the base along the same direction, a through hole is formed in the main shaft seat, and the first transmission piece is rotationally connected to the main shaft seat through the through hole; the driving piece is fixed at one end of the first transmission piece far away from the sliding table, and the side gear is coaxially connected with the other end of the first transmission piece; the second transmission piece is connected to the sliding table in a sliding way, the central axes of the first transmission piece and the second transmission piece are perpendicularly intersected at a point, and the planetary gear is coaxially connected to one end, far away from the sliding table, of the second transmission piece and meshed with the tooth surface of the half-shaft gear; the indicating meter is fixed on the surface of the sliding table, which is far away from the second transmission piece, and the measuring head of the indicating meter is vertically contacted with the second transmission piece.

Further, the driving piece is one of a hand-shaking disc and a speed reducer, when the driving piece is the hand-shaking disc, the center of the hand-shaking disc is coaxial with the first transmission piece on the main shaft seat, and when the driving piece is the speed reducer, the worm of the speed reducer is coaxial with the first transmission piece on the main shaft seat.

Further, the fixing mode of the hand-shaking plate and the first transmission piece is one of welding and threaded connection, when the fixing mode of the hand-shaking plate and the first transmission piece is welding, the first transmission piece is welded at the center of the hand-shaking plate, and when the fixing mode of the hand-shaking plate and the first transmission piece is threaded connection, the first transmission piece is threaded connection at the center of the hand-shaking plate.

Further, the worm of the speed reducer is connected with the first transmission member through the coupling sleeve, a threaded hole is formed in the circumferential surface of the coupling sleeve, and the worm and the first transmission member are respectively fixed at two ends of the coupling sleeve through the threaded hole and screws matched with the threaded hole.

Further, the sliding table further comprises a sliding block, the sliding block is slidably connected to the bottom of the sliding table and is arranged between the second transmission piece and the indicating meter, the surface, facing the second transmission piece, of the sliding block is connected with the second transmission piece through a spring, and the surface, facing the indicating meter, of the sliding block is vertically contacted with the measuring head of the indicating meter.

Further, the indicator is one of a pointer indicator and a digital display meter, when the indicator is the digital display meter, the digital display meter is connected with a detection alarm device, and when the numerical value of the digital display meter exceeds a preset range, the detection alarm device is used for alarming.

Further, at least 2 through holes are formed in the spindle seat, and the through holes are sequentially arranged in the height direction of the spindle seat.

Further, in the through hole, the first transmission piece is sleeved with a layer of steel sleeve, and the steel sleeve is used for protecting the first transmission piece when the first transmission piece rotates.

Further, a flange is coaxially connected between the side gear and the spindle seat, and the flange is used for protecting the side gear when the first transmission member rotates.

Further, one end of the first transmission piece, which is connected with the side gear, is fixed with a baffle plate, and the baffle plate is attached to the side gear.

The beneficial effects are that:

according to the technical scheme, the utility model provides the differential gear meshing checking device, and meshing degree of the side gears and the planetary gears is visually displayed through rotation of the pointer of the indicator. The driving piece is arranged in a manual driving mode or an electric driving mode, the manual driving is not limited by an electric environment, the meshing degree is controllable, and the manual working strength is reduced and the efficiency is higher in the electric driving. The sliding block is used for transmitting the displacement of the planetary gear, so that the measuring head and the second transmission piece are protected, and the service life is prolonged; a plurality of through holes are formed in the spindle seat and are used for installing half-shaft gears with different sizes for detection; the steel sleeve is sleeved outside the first transmission part, so that the first transmission part is prevented from being worn, the service life is prolonged, and only the steel sleeve needs to be replaced when the steel sleeve is damaged, so that the cost is low; a flange is added between the half-shaft gear and the main shaft seat, so that the half-shaft gear is protected and abrasion is prevented; the half-shaft gear is fixed at one end of the first transmission piece connected with the half-shaft gear by a baffle plate, so that the firmness of the connection of the half-shaft gear is improved; the detection alarm device is used for replacing manual identification, so that the manual labor intensity is reduced, the manual unstable factors are eliminated, the product quality is improved, the production mode of one person and one machine can be converted into the production mode of one person and multiple machines, and the production and detection efficiency is improved.

It should be understood that all combinations of the foregoing concepts, as well as additional concepts described in more detail below, may be considered a part of the inventive subject matter of the present disclosure as long as such concepts are not mutually inconsistent.

The foregoing and other aspects, embodiments, and features of the present teachings will be more fully understood from the following description, taken together with the accompanying drawings. Other additional aspects of the utility model, such as features and/or advantages of the exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the embodiments according to the teachings of the utility model.

Drawings

The drawings are not intended to be drawn to scale with respect to true references. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of a differential gear engagement check device with a hand crank.

Fig. 2 is a schematic structural view of a differential gear engagement check device with a speed reducer.

Fig. 3 is a schematic diagram of a differential gear engagement check device with a speed reducer and a detection alarm device.

Reference numerals illustrate:

a base 1; a spindle base 2; a sliding table 3; a second transmission member 301; a slider 302; an instruction table 303; a hand-shake tray 401; a speed reducer 402; a first transmission member 5; a steel sleeve 501; a flange 502; a baffle 503; a side gear 6; a planetary gear 7; and a detection alarm device 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Also, unless the context clearly indicates otherwise, singular forms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "comprises," "comprising," or the like are intended to cover a feature, integer, step, operation, element, and/or component recited as being present in the element or article that "comprises" or "comprising" does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "up", "down", "left", "right" and the like are used only to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.

The conventional bevel gear rolling inspection machine needs to manually judge whether the tooth side gap is in an error range, and because the naked eye identification is not accurate enough, the manual identification is high in working strength, and misjudgment can occur, so that the automobile is assembled on the automobile to cause automobile faults.

In view of this, the present utility model contemplates a differential gear engagement checking device comprising a base 1, a spindle base 2, a slide table 3, a driving member, a side gear 6, a planetary gear 7, an indicator 303, a first transmission member 5 and a second transmission member 301, the spindle base 2 and the slide table 3 being mounted on the base 1 in this order in the same direction.

The spindle seat 2 is provided with a through hole, and the first transmission part 5 is rotationally connected to the spindle seat 2 through the through hole; the driving piece is fixed at one end of the first transmission piece 5 far away from the sliding table 3, and the half-shaft gear 6 is coaxially connected with the other end of the first transmission piece 5; the second transmission member 301 is slidably connected to the sliding table 3, the central axes of the first transmission member 5 and the second transmission member 301 vertically intersect at a point, and the planetary gear 7 is coaxially connected to one end of the second transmission member 301 away from the sliding table 3 and meshed with the tooth surface of the side gear 6; the indicating gauge 303 is fixed on the surface of the sliding table 3 away from the second transmission member 301 and the measuring head of the indicating gauge 303 is vertically contacted with the second transmission member 301.

Referring to fig. 1, the base 1 has a plane for accommodating the spindle seat 2 and the sliding table 3, the spindle seat 2 and the sliding table 3 are mounted at positions such that the side gear 6 and the planetary gear 7 can be meshed, and after being meshed, the side gear 6 and the central axis of the planetary gear 7 perpendicularly intersect at a point, that is, the central axes of the first transmission member 5 and the second transmission member 301 perpendicularly intersect at a point, in this case, the gear meshing is most convenient and the data obtained by detection after the gear meshing is most accurate. The effect of through-hole is holding first driving medium 5, and the effect of slip table 3 is carrying out coarse adjustment distance for the side gear 6 reaches the meshing state with planetary gear 7 preliminarily, and the effect of pilot gauge 303 is with the horizontal displacement conversion of second driving medium 301 to the data that can show on pilot gauge 303, designs error range in advance, and whether the error is in error range in advance is judged to the data that shows on pilot gauge 303, exceeds error range and judges that the gear is unqualified, needs the shape modification, and planetary gear 7 produces horizontal displacement after the side gear 6 meshes with planetary gear 7, drives pilot gauge 303 and converts horizontal displacement into the data of pilot gauge 303, and is easier to observe. In some embodiments, the spindle base 2 can slide on the base 1 and can be fixed on the base 1 with nuts, and coarse adjustment is performed by using the spindle base 2, so that the side gears 6 are meshed with the planetary gears 7.

The driving piece drives the first driving piece 5 to rotate in the through hole, the first driving piece 5 rotates to drive the half-shaft gear 6 to rotate, and the half-shaft gear 6 is meshed with the planetary gear 7, so that the planetary gear 7 is coaxial with the second driving piece 301, the half-shaft gear 6 drives the planetary gear 7 to rotate on the second driving piece 301, and the planetary gear 7 cannot fly off from the second driving piece 301. Because the measuring head of the indicator 303 is vertically contacted with the second transmission member 301, when the side gear 6 and the planet gear 7 are not in the theoretical size range, the meshing degree is not high, or a jump is generated between the side gear 6 and the planet gear 7, or a bruise defect exists between the side gear 6 and the planet gear 7, and the like, because the second transmission member 301 is slidingly connected on the sliding table 3, the second transmission member 301 generates horizontal left or horizontal right displacement, because the measuring head of the indicator 303 is vertically contacted with the second transmission member 301, the measuring head generates horizontal displacement in the same direction as the second transmission member 301 towards the dial position of the indicator 303, the pointer of the indicator 303 is driven to rotate, and the operator observes the jump, so that whether the side gear 6 and the planet gear 7 are qualified or not is further judged.

In some embodiments, the driving piece is one of a hand crank 401 and a speed reducer 402, when the driving piece is the hand crank 401, the center of the hand crank 401 is coaxial with the first transmission piece 5 on the spindle base 2, and when the driving piece is the speed reducer 402, the worm of the speed reducer 402 is coaxial with the first transmission piece 5 on the spindle base 2.

Referring to fig. 1, the driving member is a hand crank 401 manually driven by a worker, the first driving member 5 and the side gear 6 are driven to rotate by the worker rotating the hand crank 401, the side gear 6 drives the planetary gear 7 to rotate, the meshing degree of the side gear 6 and the planetary gear 7 is judged by the data of the indicator 303 and a preset error range, the preset error range is a numerical range formed by the upper tolerance limit and the lower tolerance limit of the actual gear parameter and the theoretical gear parameter, and if the data is in the set error range, the meshing degree of the side gear 6 and the planetary gear 7 is high and is qualified; if the data exceeds the set error range, the degree of engagement between the side gear 6 and the planetary gear 7 is low, and the data is not acceptable, and the shape is required to be modified. Referring to fig. 2 or 3, when the driving member is an electrically driven speed reducer, manual operation is simplified, and detection efficiency is improved. The worm of the electric drive speed reducer 402 rotates, and the subsequent transmission is consistent with the transmission sequence and the engagement judgment condition when the driving piece is the hand-operated disc 401. Preferably, the speed reducer 402 has a reduction ratio of 1:180, the reduction ratio refers to the ratio of the instantaneous input speed to the output speed in the reduction mechanism, and can be selected according to the sizes of the actual side gears 6 and the planetary gears 7.

In some embodiments, the fixing manner of the hand crank 401 and the first transmission member 5 is one of welding and screwing, when the fixing manner of the hand crank 401 and the first transmission member 5 is welding, the first transmission member 5 is welded at the center of the hand crank 401, and when the fixing manner of the hand crank 401 and the first transmission member 5 is screwing, the first transmission member 5 is screwing at the center of the hand crank 401.

When the hand-operated disc 401 and the first transmission member 5 are connected by welding, the fixing effect of the hand-operated disc 401 and the first transmission member 5 is improved, and the hand-operated disc 401 cannot fall off; when adopting threaded connection hand crank 401 and first driving medium 5, hand crank 401 possesses the detachable function, can change the driving medium of other forms in the follow-up use, for firm threaded connection, the screw thread design on the first driving medium 5 is long enough, uses the nut to fix in the both sides of hand crank 401.

In some embodiments, the worm of the speed reducer 402 is connected with the first transmission member 5 through a coupling sleeve, a threaded hole is formed in the circumferential surface of the coupling sleeve, and the worm and the first transmission member 5 are respectively fixed at two ends of the coupling sleeve through the threaded hole and a screw matched with the threaded hole.

In which, referring to fig. 2 or 3, the coupling sleeve is a part of a machine for connecting shafts, and functions to connect a motor with a rotating shaft to transmit power. Set up the screw hole on the yoke bush, with screw rotation income screw hole, screw gets into the yoke bush and supports worm and first driving medium 5 respectively for worm and first driving medium 5 synchronous revolution have strengthened the rotatory stability of driving medium and first driving medium 5.

In some embodiments, the sliding table 3 further includes a sliding block 302, the sliding block 302 is slidably connected to the bottom of the sliding table 3 and is disposed between the second transmission member 301 and the indicator 303, a surface of the sliding block 302 facing the second transmission member 301 is connected to the second transmission member 301 through a spring, and a surface of the sliding block 302 facing the indicator 303 vertically contacts with a measuring head of the indicator 303.

Referring to fig. 1 to 3, a slider 302 is mounted between the second transmission member 301 and the indicator 303, and the slider 302 plays a role in transmitting displacement, so as to prevent the second transmission member 301 from being excessively long with respect to the indicator 303, and the measuring head of the indicator 303 cannot contact the second transmission member 301. In addition, the sliding block 302 is connected with the second transmission piece 301 by adopting a spring, and the spring provides displacement and has buffering capacity at the same time, so that the measuring head is prevented from being directly propped against to generate abrasion, and the service life is prolonged.

In some embodiments, the indicator 303 is one of a pointer indicator and a digital display, and when the indicator 303 is a digital display, the digital display is connected with a detection alarm device 8, and when the value of the digital display exceeds a preset range, the detection alarm device is used for alarming.

Referring to fig. 1 and fig. 2, the pointer type indicator can be visually observed by a worker, does not occupy a large range of working space, can be one of a dial indicator or a dial indicator, and can be more accurate when a smaller error range needs to be measured, and the data of the indicator 303 is the radian of the pointer type indicator. Referring to fig. 3, the digital display meter may directly display a numerical value, where the data of the indicator 303 is the numerical value that is directly displayed, and whether an error is exceeded or not is judged according to the numerical value, in addition, the detection alarm device may be electrically connected to the digital display meter, where the detection alarm device has an external display, and displays the data in synchronization with the digital display meter, and the preset range is a numerical range formed by a preset tolerance upper limit and a preset tolerance lower limit, and when the data of the digital display meter is not in the preset range, the detection alarm device alarms; the alarm mode can be set to be qualified, and the detection alarm device alarms when the data of the digital display meter is in a preset range. Meanwhile, the PLC can be utilized for online detection, an external data line is connected with a computer for data acquisition or manual data acquisition, so that whether the data are in a preset range is judged, the manual operation is simplified, the detection efficiency is improved, the visual display can be realized, and the detection is realized.

In some embodiments, at least 2 through holes are formed in the spindle base 2, and the through holes are sequentially arranged in the height direction of the spindle base 2.

Each through hole can be used for accommodating the first transmission piece 5, through holes with different heights can be suitable for the side gears 6 with different sizes, meanwhile, the supporting pieces can be coaxially connected between the planetary gears 7 and the sliding table 3 and used for perpendicularly intersecting the central axes of the first transmission piece 5 and the second transmission piece 301 at one point, so that the engagement of the side gears 6 and the planetary gears 7 is completed, and the adaptation degree of the differential gear engagement checking device is improved.

In some embodiments, the first transmission member 5 is sleeved with a layer of steel sleeve 501 in the through hole, and the steel sleeve 501 is used for protecting the first transmission member 5 when the first transmission member 5 rotates.

Referring to fig. 1 to 3, the first transmission member 5 is sleeved with the steel sleeve 501, so that friction between the circumferential surface of the first transmission member 5 and the wall of the through hole can be avoided, the steel sleeve 501 replaces the first transmission member 5 to be in contact with the through hole, abrasion of the first transmission member 5 is prevented, the service life of the first transmission member 5 is prolonged, and in addition, after the steel sleeve 501 is abraded, the steel sleeve 501 can be replaced to continue running, and the replacement cost is low.

In some embodiments, a flange 502 is coaxially connected between the side gear 6 and the spindle base 2, and the flange 502 is used to protect the side gear 6 when the first transmission member 5 rotates.

Referring to fig. 1 to 3, the side gear 6 can be fixed on the flange 502, and the flange 502 replaces the side gear 6 to rotate on the spindle seat, so that abrasion of the side gear 6 after rotation is avoided, integrity of the side gear 6 is ensured, and loss cost is reduced.

In some embodiments, a baffle 503 is fixed at one end of the first transmission member 5 connected to the side gear 6, and the baffle 503 fits the side gear 6.

Referring to fig. 1 to 3, the baffle plate 503 is attached to the side gear 6, so as to prevent the side gear 6 from flying out during rotation, and ensure the stability of meshing detection of the side gear 6 and the planetary gear 7.

In summary, the differential gear meshing inspection device provided by the utility model can intuitively detect the meshing condition of the side gears 6 and the planetary gears 7 and judge whether the meshing condition of the gears is qualified. When the speed reducer 402 is used as a driving piece, the half-shaft gear 6 and the planetary gear 7 are matched with the detection alarm device to automatically rotate at a low speed, so that the labor intensity of staff is greatly reduced, artificial unstable factors are eliminated, the product quality is improved, and in addition, the production mode of one person and one machine is converted into the production mode of one person to process a plurality of machines by using the differential gear meshing inspection device obtained by the design scheme, so that the production and detection efficiency is improved.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.

Claims (10)

1. The differential gear meshing inspection device comprises a base, a main shaft seat, a sliding table, a driving piece, a half shaft gear, a planetary gear, an indicator, a first transmission piece and a second transmission piece, wherein the main shaft seat and the sliding table are sequentially arranged on the base along the same direction,

the main shaft seat is provided with a through hole, and the first transmission part is rotationally connected to the main shaft seat through the through hole; the driving piece is fixed at one end of the first transmission piece far away from the sliding table, and the side gear is coaxially connected with the other end of the first transmission piece; the second transmission piece is connected to the sliding table in a sliding way, the central axes of the first transmission piece and the second transmission piece are perpendicularly intersected at a point, and the planetary gear is coaxially connected to one end, far away from the sliding table, of the second transmission piece and meshed with the tooth surface of the half-shaft gear; the indicating meter is fixed on the surface of the sliding table, which is far away from the second transmission piece, and the measuring head of the indicating meter is vertically contacted with the second transmission piece.

2. The differential gear engagement inspection device according to claim 1, wherein the driving member is one of a hand crank and a speed reducer, and when the driving member is a hand crank, a center of the hand crank is coaxial with the first transmission member on the spindle base, and when the driving member is a speed reducer, a worm of the speed reducer is coaxial with the first transmission member on the spindle base.

3. The differential gear engagement checking device according to claim 2, wherein the manner of fixing the hand crank plate to the first transmission member is one of welding and screwing, the first transmission member is welded to the center of the hand crank plate when the manner of fixing the hand crank plate to the first transmission member is welding, and the first transmission member is screwed to the center of the hand crank plate when the manner of fixing the hand crank plate to the first transmission member is screwing.

4. The differential gear engagement checking device according to claim 2, wherein the worm of the speed reducer is connected with the first transmission member through a coupling sleeve, a threaded hole is formed in the circumferential surface of the coupling sleeve, and the worm and the first transmission member are respectively fixed at two ends of the coupling sleeve through the threaded hole and a screw matched with the threaded hole.

5. The differential gear engagement check apparatus according to claim 1, wherein the slide table further includes a slider slidably connected to a bottom of the slide table and disposed between the second transmission member and the indicating gauge, a face of the slider facing the second transmission member is connected to the second transmission member by a spring, and a face of the slider facing the indicating gauge vertically contacts a measuring head of the indicating gauge.

6. The differential gear engagement check device according to any one of claims 1 or 5, wherein the indicator is one of a pointer indicator and a digital display meter, and when the indicator is a digital display meter, the digital display meter is connected with a detection alarm device, and when a numerical value of the digital display meter exceeds a preset range, the detection alarm device is used for alarming.

7. The differential gear engagement check device according to claim 1, wherein at least 2 through holes are provided in the spindle base, and the through holes are sequentially aligned in a height direction of the spindle base.

8. The differential gear engagement check device of claim 1, wherein said first transmission member is sleeved with a layer of steel sleeve in said through hole, said steel sleeve serving to protect said first transmission member when said first transmission member rotates.

9. The differential gear engagement check apparatus according to claim 1, wherein a flange is coaxially connected between the side gear and the spindle base, the flange serving to protect the side gear when the first transmission member rotates.

10. The differential gear engagement check device according to claim 1, wherein a flap is fixed to an end of the first transmission member to which the side gear is connected, the flap being fitted to the side gear.