Axial and radial run-out measuring instrument for water pump bearing
By designing a radial runout measuring instrument for the bearing shaft of a water pump, and using support components to construct a support body for radial runout detection of the bearing's inner shaft, the problem that the detection in the existing technology needs to be carried out after assembly is solved, and efficient batch testing is achieved.
Patent Information
- Application Number
- CN202423157062.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In the existing technology, the radial runout detection of the water pump shaft connecting bearing needs to be carried out after assembly, which increases the operation steps and lacks convenient and efficient detection devices, making it difficult to meet the detection needs of mass production.
A radial runout measuring instrument for a water pump shaft connecting bearing is designed. A support body with the same structure as the outer ring of the bearing is constructed through two support accessories. This instrument is used to quickly detect the radial runout value of the inner shaft of the bearing before assembly, and the measurement is performed in conjunction with a dial indicator.
It enables rapid and convenient inspection before the inner shaft of the bearing is assembled, improves inspection efficiency, is suitable for mass production and processing, and simplifies the operation process.
Smart Images
Figure CN223580830U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to bearing measuring equipment technical field, concretely relates to a water pump shaft connecting bearing shaft radial runout measuring instrument. BACKGROUND
[0002] Water pump shaft connecting bearing is an important component of automobile water pump, as a kind of high-speed rotating component, the radial runout value for judging its shaft deviation is one of the key data needing to be detected. At present, the detection mode of water pump shaft connecting bearing shaft radial runout is usually to fix the outer ring of bearing first using clamping tool, then rotate the inner shaft, and use detection tool to detect the deviation amount when the outer diameter surface of inner shaft rotates, this detection mode is relatively simple to operate, but needs bearing to be completed after assembly, if the substandard product of radial runout value is detected, bearing and inner shaft need to be disassembled and replaced, which increases operation procedure and greatly reduces detection efficiency. For the bearing inner shaft before assembly, the coaxiality between its outer diameter surface and ball groove needs to be detected, currently, there is lack of convenient and efficient detection device, generally only three-coordinate measuring instrument can be used for detection, and three-coordinate measurement is usually used for the accuracy of the design processing index of workpiece by measurement room, and it takes a long time to detect a workpiece, so it is difficult to meet the detection needs in batch production and processing. CONTENT OF THE UTILITY MODEL
[0003] In view of the defects of prior art, the utility model provides a water pump shaft connecting bearing shaft radial runout measuring instrument, which supports the inner shaft by constructing water pump bearing outer ring structure through two supporting accessories, and can quickly detect the radial runout value of bearing inner shaft before assembly. To achieve the above technical purpose, the technical scheme adopted by the utility model is as follows:
[0004] A water pump shaft connecting bearing shaft radial runout measuring instrument, comprising a base, a gauge head support seat and a workpiece support seat are arranged on the base, a dial gauge is installed on the gauge head support seat, a V-shaped support plate with opening upward is arranged on the workpiece support seat along horizontal direction, and the measuring probe of dial gauge is vertically downward to the center line of V-shaped support plate;First supporting accessory and second supporting accessory are arranged above V-shaped support plate, first supporting accessory and second supporting accessory are mutually symmetrical semicircular arc, respectively comprising outer ring, retainer and a plurality of steel balls, retainer is fixedly bonded on the inner wall of outer ring, steel balls are embedded in retainer and can freely roll, first supporting accessory is placed in the middle of V-shaped support plate with opening upward, and second supporting accessory can be moved up and down above first supporting accessory with opening downward.
[0005] Preferably, a bearing positioning plate is arranged at one end of the V-shaped support plate, and a positioning bolt adjustable along the length direction is arranged on the bearing positioning plate, the positioning bolt is arranged above the V-shaped support plate and extends inward along the center line direction of the V-shaped support plate from one end of the V-shaped support plate, and when the first supporting accessory is placed on the V-shaped support plate, the end face of the first supporting accessory towards the bearing positioning plate abuts against the inner end of the positioning bolt.
[0006] Further, the base is provided with a pressing mechanism, the pressing mechanism comprises a pressing cylinder arranged upwards along the vertical direction, and a pressing arm is arranged on the movable end of the pressing cylinder along the horizontal direction, the pressing arm is perpendicular to the V-shaped support plate and extends above the V-shaped support plate, and the second supporting accessory is fixedly arranged on the lower side of the pressing arm with the opening downwards.
[0007] Further, the mounting position of the pressing mechanism on the base is adjustable along the direction of the positioning bolt.
[0008] Preferably, a gauge head connecting plate is arranged on the gauge head support seat along the horizontal direction, and the dial gauge is mounted on the gauge head connecting plate, and the mounting position of the gauge head connecting plate on the gauge head support seat is adjustable along the direction perpendicular to the center line of the V-shaped support plate.
[0009] Preferably, the mounting position of the workpiece support seat on the base is adjustable along the center line direction of the V-shaped support plate.
[0010] Further, mounting flanges are arranged on the two sides of the bottom of the workpiece support seat, and long strip-shaped mounting screw holes parallel to the center line of the V-shaped support plate are arranged on the mounting flanges.
[0011] Compared with the prior art, the beneficial effects of the utility model lie in that two supporting accessories are combined into a support body with the same structure as the outer ring of the shaft connecting bearing to support the inner shaft of the bearing, the shaft radial runout value of the inner shaft can be detected before the assembly of the inner shaft, the device is simple in structure, easy to operate, high in detection efficiency, and suitable for batch detection operation during the production and machining of the inner shaft of the shaft connecting bearing of the water pump. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 The utility model discloses a three-dimensional structure schematic diagram.
[0013] Figure 2 The utility model discloses the structure schematic diagram of supporting accessory.
[0014] In the drawings: 1. base;2. gauge head support seat;21. dial gauge;22. gauge head connecting plate;3. workpiece support seat;31. V-shaped support plate;32. first supporting accessory;33. second supporting accessory;34. outer ring;35. retainer;36. steel ball;37. bearing positioning plate;38. positioning bolt;39. mounting flange;4. pressing mechanism;41. pressing cylinder;42. pressing arm. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The terms such as "upper", "lower", "left", "right", "middle" and the like cited in the specification are only for clear and easy description, rather than to limit the scope of the present application. The change or adjustment of the relative relationship without substantial change of the technical content is also regarded as the scope of the present application. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the scope of the present application.
[0016] The utility model provides a kind of water pump shaft coupling bearing shaft radial runout measuring instrument, refer to Figure 1 As shown in the drawing, including base 1, be equipped with table head support seat 2 and workpiece support seat 3 on base 1, dial gauge 21 is installed on table head support seat 2, workpiece support seat 3 is equipped with V-shaped support plate 31 with opening upwards along horizontal direction, the measuring probe of dial gauge 21 vertically downwardly towards the middle line of V-shaped support plate 31.In the top of V-shaped support plate 31 is equipped with first supporting fitting 32 and second supporting fitting 33, first supporting fitting 32 and second supporting fitting 33 are mutually symmetrical semicircle arc, refer to Figure 2As shown, the first supporting accessory 32 and the second supporting accessory 33 are respectively composed of an outer ring 34, a retainer 35 fixedly adhered to the inner wall of the outer ring 34, and a plurality of steel balls 36 embedded in the retainer 35 and freely rollable. The first supporting accessory 32 is placed in the middle of the V-shaped supporting plate 31 with the opening upward, and the second supporting accessory 33 is movably placed above the first supporting accessory 32 with the opening downward. In a specific application, the first supporting accessory 32 and the second supporting accessory 33 can be made of a finished bearing outer ring matched with an inner shaft of a bearing to be detected. After the assembled outer ring 34 and the retainer 35 are fixedly adhered by an adhesive, they are cut into two parts to obtain two semicircular arc-shaped supporting accessories which are symmetrical to each other. During detection, the first supporting accessory 32 is placed in the middle of the V-shaped supporting plate 31 with the opening upward, and then the inner shaft workpiece of the bearing to be detected is placed on the first supporting accessory 32, so that the channel of the inner shaft is matched with the steel balls 36 of the first supporting accessory 32. Then, the second supporting accessory 33 is pressed on the first supporting accessory 32 and the inner shaft workpiece with the opening downward, and the first supporting accessory 32 and the second supporting accessory 33 are combined into a supporting body which has the same structure as the outer ring of the shaft-connected bearing, thereby supporting the inner shaft of the bearing. The first supporting accessory 32, the second supporting accessory 33, and the inner shaft of the bearing to be detected form a shaft-connected bearing in an assembled state. At this time, the inner shaft is rotated, the measuring probe of the micrometer 21 is used to detect the shaft radial runout value of the inner shaft according to a conventional detection method, and after the detection is completed, the second supporting accessory 33 is lifted upward and the inner shaft is removed. Then, the detection of the next inner shaft workpiece is repeated according to the same method. Compared with the existing detection device, the measuring instrument uses two supporting accessories to combine a supporting body which has the same structure as the outer ring of the shaft-connected bearing, thereby supporting the inner shaft of the bearing and detecting the shaft radial runout value of the inner shaft before the inner shaft is assembled. The device has a simple structure, is easy to operate, has a high detection efficiency, and is suitable for batch detection during the production and processing of the inner shaft of the shaft-connected bearing of the water pump.
[0017] In order to fix the position of the first supporting accessory 32 and improve the detection accuracy, in a preferred embodiment, the V-shaped supporting plate 31 is provided with a bearing positioning plate 37 at one end, the bearing positioning plate 37 is provided with a positioning bolt 38 which can be adjusted along the length direction, the positioning bolt 38 is located above the V-shaped supporting plate 31 and extends inward along the center line of the V-shaped supporting plate 31 from one end thereof, and when the first supporting accessory 32 is placed on the V-shaped supporting plate 31, the end face of the first supporting accessory 32 towards the bearing positioning plate 37 abuts against the inner end of the positioning bolt 38. The position of the positioning bolt 38 is adjusted before detection, and when the first supporting accessory 32 is placed on the V-shaped supporting plate 31, it abuts against the positioning bolt 38, so as to ensure that the inner shaft of the bearing is fixedly located at a position suitable for the measurement of the micrometer 21 during detection.
[0018] In the utility model, the second supporting accessory 33 is movable up and down above the first supporting accessory 32, is used for pressing on the bearing inner shaft and is supported with the first supporting accessory 32, in specific application, the second supporting accessory 33 can be placed and pressed manually by detection personnel, and can also be controlled by corresponding transmission mechanism.In a preferred embodiment, the base 1 is provided with a pressing mechanism 4, the pressing mechanism 4 includes a pressing cylinder 41 arranged upwards along the vertical direction, the movable end of the pressing cylinder 41 is provided with a pressing arm 42 along the horizontal direction, the pressing arm 42 is perpendicular to the V-shaped support plate 31 and extends above the V-shaped support plate 31, and the second supporting accessory 33 is fixedly arranged on the lower side of the pressing arm 42 with the opening downwards.By setting the pressing mechanism 4, the second supporting accessory 33 can be better pressed stably, and the detection personnel do not need to press the second supporting accessory 33 manually during measurement, so that the hands can be free for the operation of the inner shaft rotation and the dial gauge, and the operation is more convenient.
[0019] In order that the position of the second supporting accessory 33 can be aligned with the first supporting accessory 32 after the positioning bolt 38 is adjusted, in a preferred embodiment, the installation position of the pressing mechanism 4 on the base 1 is adjustable along the direction in which the positioning bolt 38 moves.The specific adjustment mode can be that long strip-shaped screw holes same as the direction of the positioning bolt 38 are arranged on the two sides of the bottom of the pressing mechanism 4 or on the base 1, and the installation position of the pressing mechanism 4 is adjusted before measurement.
[0020] In a preferred embodiment, the table head support seat 2 is provided with a table head connecting plate 22 along the horizontal direction, the dial gauge 21 is installed on the table head connecting plate 22, and the installation position of the table head connecting plate 22 on the table head support seat 2 is adjustable along the direction perpendicular to the center line of the V-shaped support plate 31.Through adjusting the installation position of the table head connecting plate 22, the measuring probe of the dial gauge 21 can be in a suitable detection position, and the center line of the bearing inner shaft workpiece in the vertical direction can be aligned, so that the bearing inner shaft of different specifications can be adapted.In addition, the installation position of the workpiece support seat 3 on the base 1 along the direction of the center line of the V-shaped support plate 31 can be adjusted, specifically, installation flanges 39 can be arranged on the two sides of the bottom of the workpiece support seat 3, the installation flanges 39 are provided with long strip-shaped installation screw holes parallel to the center line of the V-shaped support plate 31, and the workpiece support seat 3 is installed on the base 1 by penetrating the long strip-shaped installation screw holes by bolts.The position of the dial gauge 21 along the direction perpendicular to the center line of the V-shaped support plate 31 can be adjusted, and the position of the workpiece support seat 3 along the direction of the center line of the V-shaped support plate 31 can be adjusted, so that the position of the measuring probe of the dial gauge 21 on the surface of the measured inner shaft workpiece is in a suitable measurement position before measurement.
[0021] In summary, the water pump shaft connecting bearing shaft radial run-out measuring instrument provided by the utility model effectively solves the problem that the rapid detection of the shaft radial run-out of the shaft connecting bearing needs to be carried out after the bearing is assembled, and the problem that the operation of detecting the inner shaft before assembly is complex and low in efficiency, the device can be applied to the rapid detection of the shaft radial run-out of the shaft connecting bearing inner shaft during batch production and processing of the shaft connecting bearing, has high utilization value and use significance, and can be widely applied.
[0022] The above is the preferred embodiment of the utility model, and it should be noted that, for those skilled in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be considered within the protection scope of the utility model.
Claims
1. A shaft radial run-out measuring instrument for a water pump shaft coupling bearing, comprising a base (1), characterized in that: The base (1) is provided with a gauge head support seat (2) and a workpiece support seat (3), the gauge head support seat (2) is provided with a dial gauge (21), the workpiece support seat (3) is provided with a V-shaped support plate (31) with an opening facing upward along a horizontal direction, a measuring probe of the dial gauge (21) vertically faces downward to a center line of the V-shaped support plate (31), the V-shaped support plate (31) is provided with a first supporting accessory (32) and a second supporting accessory (33) above, the first supporting accessory (32) and the second supporting accessory (33) are mutually symmetrical semicircular arcs, respectively comprising an outer ring (34), a retainer (35) and a plurality of steel balls (36), the retainer (35) is fixedly bonded to an inner wall of the outer ring (34), the steel balls (36) are embedded in the retainer (35) and can freely roll, the first supporting accessory (32) is placed in a middle part of the V-shaped support plate (31) with an opening facing upward, the second supporting accessory (33) can move up and down above the first supporting accessory (32) with an opening facing downward.
2. A shaft bearing shaft diameter runout measuring instrument for a water pump shaft as set forth in claim 1, characterized in that: The V-shaped support plate (31) is provided with a bearing positioning plate (37) at one end, the bearing positioning plate (37) is provided with a positioning bolt (38) which can be adjusted along a length direction, the positioning bolt (38) is located above the V-shaped support plate (31) and extends inward along a center line direction of the V-shaped support plate (31) from one end of the V-shaped support plate (31), when the first supporting accessory (32) is placed on the V-shaped support plate (31), an end face of the first supporting accessory (32) facing a side of the bearing positioning plate (37) abuts against an inner end of the positioning bolt (38).
3. A shaft runout measuring instrument for a water pump shaft coupling bearing shaft radial runout measurement as set forth in claim 2, wherein: The base (1) is provided with a pressing mechanism (4), the pressing mechanism (4) comprises a pressing cylinder (41) arranged upward along a vertical direction, a pressing arm (42) is arranged on a movable end of the pressing cylinder (41) along a horizontal direction, the pressing arm (42) is perpendicular to the V-shaped support plate (31) and extends above the V-shaped support plate (31), the second supporting accessory (33) is fixedly arranged on a lower side of the pressing arm (42) with an opening facing downward.
4. A shaft runout measuring instrument for a water pump shaft coupling bearing shaft radial runout measurement as set forth in claim 3, wherein: An installation position of the pressing mechanism (4) on the base (1) is adjustable along a direction of the positioning bolt (38).
5. The radial runout measuring instrument for a water pump shaft connecting bearing as described in claim 1, characterized in that: The gauge head support seat (2) is provided with a gauge head connecting plate (22) along a horizontal direction, the dial gauge (21) is arranged on the gauge head connecting plate (22), an installation position of the gauge head connecting plate (22) on the gauge head support seat (2) is adjustable along a direction perpendicular to a center line of the V-shaped support plate (31).
6. A shaft bearing shaft runout measuring instrument for a water pump shaft as defined in claim 1 wherein: An installation position of the workpiece support seat (3) on the base (1) is adjustable along a direction of the center line of the V-shaped support plate (31).
7. A shaft runout measuring instrument for a water pump shaft coupling bearing shaft radial runout as defined in claim 1 wherein: Both sides of a bottom of the workpiece support seat (3) are provided with installation flanges (39), long strip-shaped installation screw holes parallel to the center line of the V-shaped support plate (31) are arranged on the installation flanges (39).