Differential housing inner sphere diameter measuring device

Abstract

The utility model relates to the technical field of sphere diameter measurement, and discloses a differential shell inner sphere diameter measuring device which comprises a bottom plate, one side of the top of the bottom plate is fixedly connected with a vertical plate, one side of the vertical plate is provided with a rotating telescopic assembly, one side of the rotating telescopic assembly is provided with a rotating rod, and the end portion of the rotating rod is fixedly connected with a measuring sphere. A cavity is formed in the measuring ball, a telescopic rod is fixedly connected to the inner circumferential wall of the cavity, two connecting rods are hinged to the end of the telescopic rod, an I-shaped rod is arranged in the cavity, and sleeves are connected to the two ends of the I-shaped rod in a sleeved mode. The sensor can sense the interior of the differential mechanism shell in multiple directions on the basis of the rotation and movement effect of the measuring ball, so that the measured result is more three-dimensional, and the ball diameter and shape in the differential mechanism shell are more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of ball diameter measurement, in particular to a device for measuring the ball diameter inside a differential housing. Background Art

[0002] The differential is an important part of the car, which enables the driving wheels to rotate at different speeds. In four-wheel drive, in order to drive the four wheels, all wheels must be connected. If the four wheels are mechanically connected together, the car cannot rotate at the same speed when driving on a curve. In order to make the car rotate at a basically consistent speed when driving on a curve, an intermediate differential needs to be added to adjust the speed difference between the front and rear wheels. The size and position of the spherical surface in the differential housing are important parameters.

[0003] Referring to Chinese patent authorization announcement number CN204421818U, a device for measuring the ball diameter inside a differential housing is disclosed, including a base plate, a support, a cover plate, a calibration piece fixed to the lower end of the cover plate, and a measuring assembly movably installed between the base plate and the cover plate, wherein: the measuring assembly includes a handle push rod, a clamp seat, a cylindrical pin seat, a reference column and a bracket, the bracket is hinged to the reference column through the cylindrical pin seat, the bracket can rotate around the cylindrical pin seat, the clamp seat is fixed to one end of the bracket, the handle push rod is fixed to the other end of the bracket, and the handle push rod is used to push the bracket to rotate; the utility model designs a rotatable measuring assembly, when measuring, the dial indicator is installed on the clamp seat, the clamp seat can rotate with the cylindrical pin seat, and the measuring point within the range of the spherical diameter can be measured, and at the same time, the measuring assembly can be rotated around the axis of the differential housing of the measured workpiece by lifting the handle, so as to realize the circumferential and radial all-round measurement and value taking of the measured spherical surface of the workpiece: the utility model is simple and practical, and the measurement is accurate;

[0004] By reviewing the above comparison documents, it is found that the technology still has some shortcomings. When ensuring that the device accurately measures the inner diameter of the differential housing, it is difficult for the user to grasp the internal shape of the object being measured, so that the measurement result is not three-dimensional enough, which makes the differential easily affected by its internal shape differences.

[0005] Therefore, how to design a device for measuring the ball diameter inside the differential housing has become a problem that we currently need to solve. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies of the prior art, the utility model provides a device for measuring the inner ball diameter of a differential housing to solve the problems mentioned in the above background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for measuring the ball diameter inside a differential housing, comprising a base plate, one side of the top of the base plate is fixedly connected to a vertical plate, one side of the vertical plate is provided with a rotating telescopic assembly, one side of the rotating telescopic assembly is provided with a rotating rod, the end of the rotating rod is fixedly connected to a measuring ball, a cavity is opened in the measuring ball, the inner peripheral wall of the cavity is fixedly connected to a telescopic rod, and the end of the telescopic rod is hingedly connected to two connecting rods.

[0010] Preferably, an I-shaped rod is arranged in the cavity, both ends of the I-shaped rod are sleeved and connected with sleeves, and a sensor is arranged at one end of the sleeve.

[0011] Preferably, the other end of the sleeve is fixedly connected to a limiting block, and the limiting block is hingedly connected to the connecting rod.

[0012] Preferably, a compression spring is sleeved and connected to the outer peripheral wall of the I-shaped rod, and two ends of the compression spring are fixedly connected to the two sleeves respectively.

[0013] Preferably, two brackets are fixedly connected to the other side of the top of the bottom plate, and material guide grooves are provided at opposite positions on the tops of the two brackets.

[0014] Preferably, a loading crawler is provided on the top of the base plate.

[0015] (III) Beneficial effects

[0016] The utility model provides a device for measuring the ball diameter in a differential housing, which has the following beneficial effects: through the coordinated use of a measuring ball, an I-shaped rod, a sleeve and a compression spring, the measuring ball can be moved after being located in the differential housing based on the rotation of the measuring ball, so that the sensor can perform multi-directional sensing in the differential housing, thereby making the measured result more three-dimensional and making the ball diameter and shape in the differential housing more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the measuring ball in the utility model from a top view;

[0020] Figure 4 yes Figure 3 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1, bottom plate; 2, bracket; 201, material guide trough; 3, vertical plate; 301, rotating telescopic assembly; 302, rotating rod; 4, measuring ball; 401, cavity; 402, telescopic rod; 403, connecting rod; 5, feeding crawler; 6, I-shaped rod; 601, sleeve; 602, compression spring; 603, sensor; 604, limit block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] like Figure 1-4As shown, the utility model provides a technical solution: a device for measuring the ball diameter in a differential housing, comprising a base plate 1, one side of the top of the base plate 1 is fixedly connected to a vertical plate 3, one side of the vertical plate 3 is provided with a rotating telescopic component 301, one side of the rotating telescopic component 301 is provided with a rotating rod 302, the end of the rotating rod 302 is fixedly connected to a measuring ball 4, a cavity 401 is opened in the measuring ball 4, the inner peripheral wall of the cavity 401 is fixedly connected to the telescopic rod 402, the end of the telescopic rod 402 is hingedly connected to two connecting rods 403, an I-shaped rod 6 is provided in the cavity 401, both ends of the I-shaped rod 6 are sleeved and connected, one end of the sleeve 601 is provided with a sensor 603, the other end of the sleeve 601 is fixedly connected to a limit block 604, and the limit block 604 is hingedly connected to the connecting rod 403.

[0026] Specifically: the outer peripheral wall of the I-shaped rod 6 is sleeved with a compression spring 602, and the two ends of the compression spring 602 are respectively fixedly connected to the two sleeves 601, and the other side of the top of the bottom plate 1 is fixedly connected to two brackets 2, and the top opposite positions of the two brackets 2 are provided with a material guide groove 201, and the top of the bottom plate 1 is provided with a feeding crawler 5;

[0027] During use, first, the rotating rod 302 is connected to the rotating telescopic assembly 301 so that the rotating rod 302 itself has the function of moving and rotating. Then, based on this, a cavity 401 is set in the measuring ball 4 so that the telescopic rod 402 can be fixed to the inner wall of the cavity 401, and the ends of the telescopic rod 402 are hingedly connected to the two connecting rods 403. Then, the two sleeves 601 are sleeved on the two ends of the I-shaped rod 6 so that the sleeves 601 can move based on the two ends of the I-shaped rod 6. At the same time, the I-shaped rod 6 can be used to control the movement of the sleeves 601. The two sleeves 601 are always vertically on the same horizontal line, so that the distance between the two sleeves 601 can be changed, and the two ends of the compression spring 602 are respectively fixed to the two sleeves 601, and the two sleeves 601 are indirectly connected by the compression spring 602. After the connection, the distance between the two sleeves 601 has an increased elastic force, so that after the feeding crawler 5 drives the differential to move between the two brackets 2, the differential can be guided by the two opposite guide grooves 201 so that the differential can be moved with the measuring ball. 4, it can be guided to the middle position of the feeding crawler 5 under the action of the guide groove 201, so that the position of the differential is adapted to the position of the measuring ball 4, which is convenient for the measuring ball 4 to enter the differential housing, and after the measuring ball 4 is located inside the differential housing, the two elastic sleeves 601 extend to both sides, so that the two sensors 603 can contact the inner wall of the housing, and then as the rotating telescopic component 301 drives the measuring ball 4 to move and rotate, the sensor 603 can contact the inside of the differential housing based on the change of the measuring ball 4. The plurality of points of the wall are sensed, so that the inner diameter of the differential housing can be made more three-dimensional according to its moving trajectory and the sensing distance. Based on this, when the user uses the differential to adjust the rotation speed of the front and rear wheels, the basic consistency of the rotation speed of the car when driving on a curve can be further ensured. After the measurement is completed, the crossing angle between the connecting rod 403 and the telescopic rod 402 can be changed by extending and retracting the telescopic rod 402, and then the distance between the two sleeves 601 can be controlled, so that the measuring ball 4 can be easily removed from the differential housing after the distance is reduced.

[0028] The working process of the utility model is as follows: firstly, the rotating rod 302 is connected with the rotating telescopic assembly 301, so that the rotating rod 302 itself has the function of moving and rotating. Then, based on this, a cavity 401 is set in the measuring ball 4, so that the telescopic rod 402 can be fixed to the inner wall of the cavity 401, and the ends of the telescopic rod 402 are hingedly connected with the two connecting rods 403. Then, two sleeves 601 are sleeved on the two ends of the I-shaped rod 6, so that the sleeves 601 can move based on the two ends of the I-shaped rod 6. At the same time, the I-shaped rod can be used to control the movement of the sleeves 601. 6 is limited so that the two sleeves 601 are always vertically on the same horizontal line, so that the distance between the two sleeves 601 can be changed, and after the two ends of the compression spring 602 are respectively fixed to the two sleeves 601, the two sleeves 601 are indirectly connected by the compression spring 602, and after the connection, the distance between the two sleeves 601 has an increased elastic force, so that after the feeding crawler 5 drives the differential to move between the two brackets 2, the differential can be guided by the two opposite guide grooves 201 so that the differential can be moved with the measuring Before the measuring ball 4 contacts, it can be guided to the middle position of the feeding crawler 5 under the action of the guide groove 201, so that the position of the differential is adapted to the position of the measuring ball 4, which is convenient for the measuring ball 4 to enter the differential housing. After the measuring ball 4 is located inside the differential housing, the two elastic sleeves 601 extend to both sides so that the two sensors 603 can contact the inner wall of the housing. After that, as the rotating telescopic component 301 drives the measuring ball 4 to move and rotate, the sensor 603 can contact the differential housing based on the change of the measuring ball 4. By sensing multiple points on the inner wall, the inner diameter of the differential housing can be made more three-dimensional according to its moving trajectory and the sensing distance. Based on this, when the user uses the differential to adjust the front and rear wheel speeds, the basic consistency of the car's rotation speed when driving on a curve can be further ensured. After the measurement is completed, the crossing angle between the connecting rod 403 and the telescopic rod 402 can be changed by extending and retracting the telescopic rod 402, and then the distance between the two sleeves 601 can be controlled, so that the measuring ball 4 can be easily removed from the differential housing after the distance is reduced.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A differential housing inner ball diameter measuring device, characterized in that: The invention comprises a bottom plate (1), one side of the top of the bottom plate (1) is fixedly connected to a vertical plate (3), one side of the vertical plate (3) is provided with a rotating telescopic assembly (301), one side of the rotating telescopic assembly (301) is provided with a rotating rod (302), the end of the rotating rod (302) is fixedly connected to a measuring ball (4), a cavity (401) is provided in the measuring ball (4), the inner peripheral wall of the cavity (401) is fixedly connected to a telescopic rod (402), and the end of the telescopic rod (402) is hingedly connected to two connecting rods (403).

2. The device for measuring the inner ball diameter of a differential housing according to claim 1, characterized in that: An I-shaped rod (6) is arranged in the cavity (401), and sleeves (601) are sleeved and connected at both ends of the I-shaped rod (6), and a sensor (603) is arranged at one end of the sleeve (601).

3. The device for measuring the inner ball diameter of a differential housing according to claim 2, characterized in that: The other end of the sleeve (601) is fixedly connected to a limit block (604), and the limit block (604) is hingedly connected to the connecting rod (403).

4. The device for measuring the inner ball diameter of a differential housing according to claim 2, characterized in that: A compression spring (602) is sleeved and connected to the outer peripheral wall of the I-shaped rod (6), and two ends of the compression spring (602) are respectively fixedly connected to the two sleeves (601).

5. The device for measuring the inner ball diameter of a differential housing according to claim 1, characterized in that: Two brackets (2) are fixedly connected to the other side of the top of the bottom plate (1), and material guide grooves (201) are provided at opposite positions on the tops of the two brackets (2).

6. The device for measuring the inner ball diameter of a differential housing according to claim 1, characterized in that: A loading crawler (5) is arranged on the top of the base plate (1).

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