Differential housing inner sphere diameter measuring device

Abstract

The utility model relates to the differential housing field, and discloses a differential housing inner sphere diameter measuring device comprising a base block, two sides of the base block are rotatably provided with connecting rods, end portions of the connecting rods are fixedly connected with measuring balls, side edges of the measuring balls are fixedly connected with connecting plates, one end of the base block is fixedly connected with a holding handle used for holding the base block, and the other end of the base block is fixedly connected with a connecting rod. According to the device, through the ingenious design of the inner ball diameter measuring assembly, the sleeve and the adjusting cylinder are unfolded through the resilience force of a reset spring, the measuring ball is accurately made to abut against the inner wall of the shell, the ball diameter is judged by observing the distance between measuring heads on an assembly rod, the measuring error can be effectively reduced, and the measuring accuracy is improved. The requirements of the modern industry for high-precision manufacturing and maintenance of the differential are met, the differential assembly problem caused by inaccurate measurement is avoided, the performance and the service life of the differential are guaranteed, and vehicle driving safety and stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of differential housings, specifically a device for measuring the inner diameter of a ball in a differential housing. Background Technology

[0002] In automotive manufacturing, machinery repair, and other fields, the differential is a crucial component, and the precise measurement of the ball diameter within its housing is of paramount importance. The dimensional accuracy of the ball diameter directly affects the differential's performance, lifespan, and the precision of its fit with other components. Inaccurate ball diameter measurement can lead to excessively large or small clearances during differential assembly. Excessive clearance can cause abnormal wear, increased noise, and reduced transmission efficiency; insufficient clearance can cause jamming between components, overheating, or even damage, severely impacting vehicle safety and stability.

[0003] Currently, traditional methods for measuring the inner diameter of differential housings have many limitations. Some measuring tools have simple structures, but their measurement accuracy is insufficient to meet the high-precision manufacturing and repair requirements of modern industry for differentials, resulting in significant measurement errors and an inability to accurately obtain the ball diameter dimensions. While some high-precision measuring devices offer accurate measurements, they are often expensive and complex to operate, requiring specialized technicians for operation and maintenance. This not only increases production costs for enterprises but also limits their widespread application in small and medium-sized enterprises and grassroots repair shops. Furthermore, most existing measuring devices lack versatility and are difficult to adapt to the measurement needs of different models and specifications of differential housings, causing numerous inconveniences in practical applications. Therefore, we propose a device for measuring the inner diameter of differential housings. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a device for measuring the inner diameter of a ball in a differential housing, thus solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a ball diameter measuring device for a differential housing, comprising a base block, connecting rods rotatably mounted on both sides of the base block, a measuring ball fixedly connected to the end of the connecting rod, a connecting plate fixedly connected to the side of the measuring ball, and a grip handle for holding the base block fixedly connected to one end of the base block, and further comprising:

[0006] The inner ball diameter measuring assembly is located between two sets of connecting plates and is used to measure the inner ball diameter of the differential housing.

[0007] Preferably, a rotating shaft extending from both sides of the base block is rotatably mounted on the base block, and rollers are rotatably sleeved at both ends of the rotating shaft.

[0008] Preferably, two groups of said rollers are fixed with adaptive adjusting plates on the sides away from each other, two groups of connecting rods are provided with sliding grooves on the sides close to each other, and two groups of adaptive adjusting plates are slidingly connected in two groups of sliding grooves respectively.

[0009] Preferably, two groups of said connecting rods are L-shaped, and two groups of connecting rods are mirror image arranged and the ends of two groups of connecting rods are fixed with measuring balls.

[0010] Preferably, said inner ball diameter measuring assembly comprises a sleeve, an adjusting cylinder, an extension rod, an assembly rod and a measuring head, the bottom end of one group of said connecting plates is fixed with a sleeve, the top of the other group of connecting plates is fixed with an adjusting cylinder, the side edges of the sleeve and the adjusting cylinder are fixed with extension rods, the ends of two groups of extension rods are fixed with assembly rods in one body, and the side edges of two groups of assembly rods are fixed with measuring heads.

[0011] Preferably, said sleeve is slidingly sleeved on the outer wall of the adjusting cylinder.

[0012] Preferably, said inner ball diameter measuring assembly further comprises a limiting rod, an open slot and a return spring, the outer wall of the adjusting cylinder is fixed with a limiting rod near the top position, the outer wall of the sleeve is provided with an open slot, the limiting rod is slidingly connected in the open slot, the inner wall of the sleeve is fixed with a return spring, and the bottom end of the return spring is fixed with the top of the adjusting cylinder.

[0013] Compared with the prior art, the utility model provides a differential mechanism shell inner ball diameter measuring device, has the following beneficial effects:

[0014] 1、the differential mechanism shell inner ball diameter measuring device, the device through the ingenious design of inner ball diameter measuring assembly, utilize the resilience of return spring and make sleeve and adjusting cylinder unfold, accurately make measuring ball abut on the inner wall of shell, judge ball diameter through the distance between measuring head on assembly rod, can effectively reduce measurement error, satisfy modern industry to differential mechanism high accuracy manufacturing and maintenance requirement, avoid because of inaccurate measurement leads to differential mechanism assembly problem, guarantee the performance and service life of differential mechanism, improve vehicle driving safety and stability.

[0015] 2、the differential mechanism shell inner ball diameter measuring device, the device structure is relatively simple, does not need complex and expensive high accuracy measuring equipment, reduces the production cost of enterprise, is especially suitable for small and medium-sized enterprise and grass-roots maintenance place uses, solved the problem of traditional high accuracy measuring equipment high price, increases enterprise burden.

[0016] 3、the differential mechanism shell inner ball diameter measuring device, is equipped with holding handle, and the convenient operation personnel hand holds operation. When measuring, only need to press measuring ball, then place it in shell and relax, and the operation flow is simple and easy to understand, and professional technical personnel are not needed to carry out complex operation and maintenance, reduce the operation threshold, improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the roller and self-adapting adjusting plate schematic view of the utility model;

[0019] Figure 3 It is the measuring head schematic view of the utility model;

[0020] Figure 4 It is the sleeve and adjusting cylinder structure split schematic view of the utility model.

[0021] In the drawing: 1, base block;2, connecting rod;3, measuring ball;4, connecting plate;5, sleeve;6, adjusting cylinder;7, rotating shaft;8, roller;9, self-adapting adjusting plate;10, holding handle;11, sliding slot;12, extension rod;13, assembly rod;14, measuring head;15, limiting rod;16, open slot;17, return spring. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figures 1-4 A differential housing inner ball diameter measuring device, comprising a base block 1, connecting rods 2 are rotatably installed on both sides of the base block 1, measuring balls 3 are fixedly connected to the ends of the connecting rods 2, connecting plates 4 are fixedly connected to the side edges of the measuring balls 3, a holding handle 10 for holding the base block 1 is fixedly connected to one end of the base block 1, and the differential housing inner ball diameter measuring device further comprises:

[0024] The inner ball diameter measuring assembly is arranged between the two groups of connecting plates 4 and is used for measuring the differential housing inner ball diameter.

[0025] Rotating shafts 7 extending out of both sides of the base block 1 are rotatably installed on the base block 1, and rollers 8 are rotatably sleeved at both ends of the rotating shafts 7.

[0026] Self-adapting adjusting plates 9 are fixedly connected to the sides of the two groups of rollers 8 away from each other, and sliding slots 11 are formed in the sides of the two groups of connecting rods 2 close to each other, and the two groups of self-adapting adjusting plates 9 are slidingly connected in the two groups of sliding slots 11 respectively.

[0027] The two groups of connecting rods 2 are L-shaped, the two groups of connecting rods 2 are mirror image arranged, and the ends of the two groups of connecting rods 2 are fixedly connected to the measuring balls 3.

[0028] The inner ball diameter measuring assembly comprises a sleeve 5, an adjusting cylinder 6, an extension rod 12, an assembly rod 13 and a measuring head 14, wherein the bottom end of one set of connecting plates 4 is fixedly connected with the sleeve 5, the top of the other set of connecting plates 4 is fixedly connected with the adjusting cylinder 6, the side edges of the sleeve 5 and the adjusting cylinder 6 are fixedly connected with the extension rod 12, the ends of the two sets of extension rods 12 are fixedly connected with the assembly rod 13 in one body, and the side edges of the two sets of assembly rods 13 are fixedly connected with the measuring head 14.

[0029] The sleeve 5 is slidingly sleeved on the outer wall of the adjusting cylinder 6.

[0030] The inner ball diameter measuring assembly further comprises a limiting rod 15, an open slot 16 and a return spring 17, the outer wall of the adjusting cylinder 6 is fixedly connected with the limiting rod 15 near the top position, the outer wall of the sleeve 5 is provided with the open slot 16, the limiting rod 15 is slidingly connected in the open slot 16, and the inner wall of the sleeve 5 is fixedly provided with the return spring 17, and the bottom end of the return spring 17 is fixedly connected with the top of the adjusting cylinder 6.

[0031] Structure description: base block 1: as the main support structure of the whole measuring device, the two sides are rotatably installed with connecting rods 2 for connecting and driving other components;

[0032] Connecting rod 2: L-shaped, the two sets of connecting rods 2 are mirror image arranged, and the ends are fixedly connected with the measuring ball 3 to realize the measurement of the inner ball diameter of the differential housing through rotation and movement;

[0033] Measuring ball 3: fixedly connected with the end of the connecting rod 2, used for directly contacting the inner wall of the differential housing, and measuring the ball diameter through deformation and resetting;

[0034] Connecting plate 4: fixedly connected with the side edge of the connecting rod 2, as the installation basis of the inner ball diameter measuring assembly;

[0035] Sleeve 5: fixedly connected with the bottom end of one set of connecting plates 4, as the sliding sleeve basis of the adjusting cylinder 6, and together with the adjusting cylinder 6 to form the main measuring part of the measuring device;

[0036] Adjusting cylinder 6: slidingly sleeved on the outer wall of the sleeve 5, realizing accurate measurement of the inner ball diameter of the differential housing through sliding and deformation;

[0037] Rotating shaft 7: rotatably installed on the base block 1 and extending out of the two sides of the base block 1, used for connecting the roller 8 to realize the movement and self-adaptive adjustment of the measuring device;

[0038] Roller 8: rotatably sleeved on the two ends of the rotating shaft 7, reducing the friction between the measuring device and the differential housing through rolling to improve the accuracy and convenience of measurement;

[0039] Adaptive adjusting plate 9: fixed on the side of the rollers 8 away from each other, through the sliding connection in the sliding groove 11 on the connecting rod 2, to realize the adaptive adjustment of the measuring device to adapt to different types, specifications of differential housing;

[0040] Hold the handle 10: fixed on one end of the base block 1, for holding and operating the measuring device;

[0041] Sliding groove 11: open in the side of the connecting rod 2 close to each other, for sliding connection with the adaptive adjusting plate 9, to realize the adaptive adjustment function of the measuring device;

[0042] Extension rod 12: fixed on the side of the sleeve 5 and the adjusting cylinder 6, for connecting the assembly rod 13, to improve the stability and measurement accuracy of the measuring device;

[0043] Assembly rod 13: fixed on the end of the extension rod 12 and connected with the measuring head 14, for directly displaying the measurement result;

[0044] Measuring head 14: fixed on the side of the assembly rod 13, by observing the distance between the two sets of measuring head 14 to determine the ball diameter in the differential housing;

[0045] Limiting rod 15: fixed on the outer wall of the adjusting cylinder 6 close to the top position, for sliding connection with the opening slot 16 on the sleeve 5, to limit the sliding range of the adjusting cylinder 6;

[0046] Opening slot 16: open in the outer wall of the sleeve 5, for sliding connection with the limiting rod 15, to realize the stability and measurement accuracy of the measuring device;

[0047] Reset spring 17: fixed on the inner wall of the sleeve 5, its bottom end is fixed with the top of the adjusting cylinder 6, for providing a reset force during measurement, so that the measuring device can adapt to different sizes of differential housing.

[0048] Working principle: when the ball diameter in the differential is needed to be measured, the two sets of measuring balls 3 are pressed, so that the two sets of measuring balls 3 gradually approach each other, the two sets of connecting plates 4 are extruded by the movement of the two sets of measuring balls 3, the sleeve 5 and the adjusting cylinder 6 are extruded, the adjusting cylinder 6 slides in the sleeve 5, the limiting rod 15 slides in the opening slot 16, the two sets of measuring balls 3 approach each other, the adaptive adjusting plate 9 drives the rollers 8 to rotate on the rotating shaft 7, the adaptive adjusting plate 9 slides in the sliding groove 11 during rotation, the two sets of measuring balls 3 are placed in the housing, the two sets of measuring balls 3 are relaxed, the sleeve 5 and the adjusting cylinder 6 are expanded by the rebound force of the reset spring 17, until the two sets of measuring balls 3 contact the inner wall of the housing, the distance between the two sets of assembly rods 13 is observed to determine the ball diameter in the housing.

[0049] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A differential case inner ball diameter measuring device characterized by: The utility model relates to a kind of differential shell inner ball diameter measuring device, including base block (1), both sides of the base block (1) are rotatably installed with connecting rod (2), the end of connecting rod (2) is fixed with measuring ball (3), the side of measuring ball (3) is fixed with connecting plate (4), one end of base block (1) is fixed with gripping handle (10) for holding base block (1), further including: Inner ball diameter measuring assembly is arranged between two groups of connecting plates (4), for measuring the inner ball diameter of differential shell.

2. A differential case inner ball diameter measuring device as described in claim 1, wherein: Rotating shaft (7) extending out of the both sides of base block (1) is rotatably installed on the base block (1), and the both ends of rotating shaft (7) are rotatably sleeved with roller (8).

3. A differential case inner ball diameter measuring device as set forth in claim 2, characterized by: The side of the two groups of roller (8) away from each other is fixed with self-adapting adjusting plate (9), and the side of the two groups of connecting rod (2) close to each other is provided with sliding groove (11), and the two groups of self-adapting adjusting plate (9) are respectively slidably connected in the two groups of sliding groove (11).

4. A differential case inner ball diameter measuring device as set forth in claim 3, characterized by: The both ends of the two groups of connecting rod (2) are rotatably connected with measuring ball (3).

5. A differential case inner ball diameter measuring device as described in claim 1, wherein: The inner ball diameter measuring assembly includes sleeve (5), adjusting cylinder (6), extension rod (12), assembly rod (13) and measuring head (14), the bottom of one group of connecting plate (4) is fixed with sleeve (5), the top of another group of connecting plate (4) is fixed with adjusting cylinder (6), the side of sleeve (5) and adjusting cylinder (6) is fixed with extension rod (12), the both ends of the two groups of extension rod (12) are fixed with integrated assembly rod (13), and the side of the two groups of assembly rod (13) is fixed with measuring head (14).

6. A differential case inner ball diameter measuring device as set forth in claim 5, characterized by: The sleeve (5) is slidably sleeved on the outer wall of adjusting cylinder (6).

7. A differential case inner ball diameter measuring device as set forth in claim 6, characterized by: The inner ball diameter measuring assembly further includes limiting rod (15), opening slot (16) and return spring (17), the outer wall of adjusting cylinder (6) is fixed with limiting rod (15) near top position, the outer wall of sleeve (5) is provided with opening slot (16), limiting rod (15) is slidably connected in opening slot (16), the inner wall of sleeve (5) is fixed with return spring (17), and the bottom of return spring (17) is fixed with the top of adjusting cylinder (6).

Images