Bearing pre-tightening force detection device

Abstract

The utility model discloses a bearing pre-tightening force detection device, and relates to the technical field of bearing assembly. The support comprises a support bottom plate, a support top plate, a positioning plate and a shaft body, an opening is vertically formed in the support bottom plate in a penetrating mode, a mounting ring is movably connected to the lower portion in the opening in an embedded mode, the shaft body is arranged at the bottom end of the mounting ring, the support top plate is arranged above the support bottom plate, and a lifting bolt is movably connected into the support top plate in a penetrating mode. A fixing frame is movably connected to the outer side of a bolt head of the lifting bolt below the support top plate, a tension meter is arranged at the bottom of the fixing frame, the pulling end of the top of the tension meter is fixed to the bottom of the fixing frame, and a positioning plate is arranged above the support bottom plate on one side of the opening. According to the bearing pre-tightening force detection device, the support bottom plate, the support top plate, the positioning plate and the shaft body are arranged, so that the problems that the bearing pre-tightening force detection device is not accurate enough in bearing pre-tightening force detection and is not high enough in applicability to shaft cores with different extension amounts are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing assembly technical field, especially, relate to a bearing pre -tightness detection device. BACKGROUND

[0002] The bearing pre -tightness detection device is a kind of special equipment for measuring and adjusting bearing pre -tightness, is widely used in mechanical manufacturing, automobile industry, aerospace etc., the device is through accurate measurement bearing under the stress condition in pre -tight state, ensure that bearing keeps suitable pre -tightness in the operation process, to improve the service life and operating stability of bearing, detection device usually includes force sensor, displacement measuring unit, data acquisition system and control module, force sensor is used to real -time monitoring the pre -tightness that bearing bears, and displacement measuring unit records the small displacement change of bearing or relevant component, data acquisition system converts sensor signal into readable data, and is analyzed and shown by software, so that operating personnel adjusts pre -tightness to optimum value, part senior device also has the automatic adjustment function, can automatically exert or adjust pre -tightness according to preset parameter, improve detection efficiency and precision, but bearing pre -tightness detection device still has following disadvantages in actual use:

[0003] When bearing pre -tightness detection device detects the pre -tightness of bearing, it usually directly clamps the assembled shaft body to be detected, but the shaft body receives great pulling force, needs greater clamping force to clamp the shaft body, when clamping, the pulling force required to pull the shaft body in bearing is increased, the detection accuracy of bearing pre -tightness is influenced;

[0004] Secondly, when detecting bearing pre -tightness, operator needs to cooperate, and set precise displacement sensor on pulling equipment, during detection process, operator needs to adjust and aim, and the adaptability to different extension amount of shaft core is not high enough. INVENTION CONTENTS

[0005] The utility model discloses a bearing pre -tightness detection device, through setting up support base plate, support top plate, positioning plate and shaft body, solve the problem that bearing pre -tightness detection device detects bearing pre -tightness not enough precision, and the adaptability to different extension amount of shaft core is not high enough.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] The utility model discloses a bearing pre -tension force detection device, including support bottom plate, support top plate, positioning board and axle body, the opening is established to the vertical through in support bottom plate, the lower part inlaying swing joint has the mounting ring in the opening, the bottom of mounting ring is provided with axle body, the axle core of axle body passes through mounting ring and opening, and stretches out to the top of support bottom plate, the top of support bottom plate is provided with support top plate, the swing joint of lifting bolt is passed through in support top plate, the bolt head outside swing joint of lifting bolt below support top plate is connected with fixed frame, lifting bolt passes through the top of fixed frame, the bottom of fixed frame is provided with tension meter, the pulling end of tension meter top is fixed with fixed frame bottom, the top of support bottom plate of opening one side is provided with positioning board, work, through support bottom plate support setting on axle body, cooperate and carry out the pre -tension force that the axle core in axle body received, through support top plate, tension meter is hunged below it through lifting bolt, positioning board fixes micrometer on it, measures whether the fixed disc is slightly displaced in the pulling process.

[0008] Further, one end of the support bottom plate is fixed with a mounting strip, the top end of the axle core of the axle body is fixed with a mounting disc, and the mounting disc is arranged above the opening. The mounting strip on the support bottom plate provides a mounting function.

[0009] Further, four corners of the bottom of the support top plate are fixed with support columns, the bottom ends of the support columns are fixed on the top of the support bottom plate, and the support top plate is supported and arranged on the top of the support bottom plate through the support columns.

[0010] Further, the screw rod part of the lifting bolt above the support top plate is screw-connected with a connecting nut on the circumferential side, the connecting nut is supported and arranged on the bottom of the support top plate, and the lifting bolt in the support top plate is screw-connected through the connecting nut.

[0011] Further, the bottom pulling end of the tension meter is fixed with a rotating pair, the bottom end of the rotating pair is fixed with a fixed disc, a plurality of mounting bolts are annularly and arrayedly inserted into the fixed disc on the outer side of the rotating pair, the mounting bolts are screwed into the mounting disc after penetrating through the fixed disc, a lifting plate is fixed on the circumferential side of the fixed disc, the tension meter is connected with the fixed disc through the rotating pair, and the fixed disc is fixed with the mounting disc through the mounting bolts.

[0012] Further, the positioning board is arranged above the lifting plate, a micrometer is fixed on the top of the positioning board, the probe of the micrometer penetrates through the lifting plate and is in contact with the top of the positioning board at the bottom end, an electric push rod is fixed on the top of the support bottom plate below the positioning board on the outer side of the lifting plate, the telescopic end of the electric push rod is fixed with the positioning board, the micrometer is connected on the positioning board and is driven to ascend and descend by the electric push rod.

[0013] The utility model has the following beneficial effects:

[0014] The utility model discloses a support bottom plate, support top plate and axle body are set up, solved the problem that bearing pre -tightness detection device detects bearing pre -tightness not enough accurate, select the appropriate installation ring, the inside diameter of installation ring is greater than the diameter of mounting disc, the diameter of installation ring is less than the diameter of axle body, and installation sleeve is passed through the mounting disc of axle top, and the support bottom plate is placed to the top of axle body, after the opening on the support bottom plate is passed through the mounting disc in this process, and installation ring is clamped in the lower part of opening, and then rotates connecting nut, and the tension meter drops, until the fixed disc falls on the mounting disc on the axle, and then the mounting bolt is inserted into the fixed disc, and then is screwed into the mounting disc on the axle, until after screwing, the setting of support bottom plate on the top of axle body can be completed, so that bearing pre -tightness detection device detects bearing pre -tightness and does not need to hold axle, and detection is more accurate.

[0015] The utility model discloses a support bottom plate, support top plate, positioning plate and axle body are set up, solved the problem that bearing pre -tightness detection device is not enough high to different extension amount's axle core applicability, when installing the rotating pair bottom end fixed disc below the tension meter with mounting disc above the support bottom plate, can rotate the connecting nut of support top plate top, and the position of lifting bolt is limited when preliminary rotating to the operator through sleeve tool, after preliminary screwing, can start electric push rod, drive positioning plate to drop, until the probe of dial gauge drops and just contacts the lifting plate of fixed disc periphery, then directly rotate connecting nut through spanner, and pull up tension meter, then can directly observe dial gauge, when the dial gauge reading changes, can determine the pre -tightness of bearing to the axle core in axle through the reading of tension meter, so that bearing pre -tightness detection device is better to different extension amount's axle core applicability. ACCURATE DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawing of the embodiment to introduce briefly, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0017] Figure 1 It is a kind of bearing pre -tightness detection device assembly structure perspective view;

[0018] Figure 2 It is the structure perspective view after support bottom plate portion is cut open;

[0019] Figure 3 It is the structure perspective view of support top plate;

[0020] Figure 4 It is the structure perspective view of positioning plate;

[0021] Figure 5 is a structural perspective view of the shaft body.

[0022] Reference signs:

[0023] 1, support bottom plate; 101, opening; 102, mounting ring; 103, mounting strip; 2, support top plate; 201, lifting bolt; 202, connecting nut; 203, fixed frame; 204, tension meter; 205, rotating pair; 206, fixed disc; 207, mounting bolt; 208, lifting plate; 209, support column; 3, positioning plate; 301, electric push rod; 302, micrometer; 4, shaft body; 401, mounting disc. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment one

[0025] Please refer to Figures 1-5 The utility model discloses a bearing pre-tightening force detection device, including support bottom plate 1, support top plate 2, positioning plate 3 and shaft body 4, the vertical through opening 101 is set up in support bottom plate 1, support bottom plate 1 is supported and is set up on shaft body 4, and support top plate 2 and positioning plate 3 are supported on shaft body 4, the lower part inlaid movable connection has the mounting ring 102 in opening 101, and the mounting ring 102 adopts the replaceable design, and the installation setting of cooperation different shaft body 4, the bottom end of mounting ring 102 is provided with shaft body 4, and the shaft core of shaft body 4 is tightly fitted with bearing, and the shaft core of shaft body 4 passes through mounting ring 102 and opening 101 and extends to the above of support bottom plate 1, so that mounting disc 401 is set up in the above of support bottom plate 1, and the above of support bottom plate 1 is provided with support top plate 2, and support top plate 2 movably connects lifting bolt 201 in it, and the tension meter 204 is hung in the below of support top plate 2, and lifting bolt 201 is movably connected with the outside of bolt head of lifting bolt 201 below support top plate 2, and lifting bolt 201 passes through the top of fixed frame 203, and the bottom of fixed frame 203 is provided with tension meter 204, when being subjected to the tension, the pressure that the shaft core of shaft body 4 is subjected to is shown through tension meter 204, and the pulling end of the top of tension meter 204 is fixed to the bottom of fixed frame 203, and the above of support bottom plate 1 on the side of opening 101 is provided with positioning plate 3, and positioning plate 3 fixes micrometer 302 on it.

[0026] Specifically, one end of the bracket bottom plate 1 is fixed with a mounting strip 103, the top end of the shaft body 4 is fixed with a mounting disc 401, the mounting disc 401 is arranged above the opening 101, the mounting strip 103 on the bracket bottom plate 1 provides mounting effect for the bracket bottom plate 1 at the fixed position, and the mounting disc 401 on the shaft body 4 is connected with the fixing disc 206 through the mounting bolt 207.

[0027] Further, the four corners of the bottom of the bracket top plate 2 are fixed with support columns 209, the bottom ends of the support columns 209 are fixed on the top of the bracket bottom plate 1, and the support columns 209 at the bottom of the bracket top plate 2 support the bracket top plate 2 on the top of the bracket bottom plate 1.

[0028] Further, the screw rod part of the lifting bolt 201 above the bracket top plate 2 is threadedly connected with a connecting nut 202, the connecting nut 202 is arranged on the bottom of the bracket top plate 2, and after the nut on the bracket top plate 2 is screwed onto the lifting bolt 201, the bracket top plate 2 is rotated to abut against the bottom of the bracket top plate 2, so that the top position of the fixed frame 203 is limited.

[0029] Further, the bottom pulling end of the tension meter 204 is fixed with a rotating pair 205, the bottom end of the rotating pair 205 is fixed with a fixing disc 206, the fixing disc 206 outside the rotating pair 205 is annularly arranged and penetrates and is connected with mounting bolts 207, the mounting bolts 207 penetrate through the fixing disc 206 and are screwed into the mounting disc 401, the fixing disc 206 is fixed with a lifting plate 208 on the side surface, the rotating pair 205 on the tension meter 204 is installed with the fixing disc 206, the fixing disc 206 is attached to the mounting disc 401 through the fixing disc 206, the mounting bolts 207 are inserted into the fixing disc 206, and then are screwed into the fixing disc 206, so that the fixing disc 206 is fastened, and the mounting disc 401 and the fixing disc 206 are installed together.

[0030] The operation process of the embodiment is as follows: in work, first, a suitable mounting ring 102 is selected, the inner diameter of the mounting ring 102 is greater than the diameter of the mounting disc 401, the diameter of the mounting ring 102 is smaller than the diameter of the shaft body 4, the mounting sleeve is penetrated through the mounting disc 401 at the top of the shaft body 4, the bracket bottom plate 1 is placed on the top end of the shaft body 4, in this process, the mounting disc 401 is penetrated through the opening 101 on the bracket bottom plate 1, the mounting ring 102 is clamped in the lower part of the opening 101, then the connecting nut 202 is rotated, the tension meter 204 is lowered, until the fixing disc 206 falls on the mounting disc 401 on the shaft body 4, then the mounting bolts 207 are inserted into the fixing disc 206, and then are screwed into the mounting disc 401 on the shaft body 4, until they are screwed tightly, so that the setting of the bracket bottom plate 1 on the top end of the shaft body 4 is completed. Specific embodiment two

[0031] Please refer to Figures 1-4On the basis of the first specific embodiment, the positioning plate 3 is arranged above the lifting plate 208, the top of the positioning plate 3 is fixed with a dial gauge 302, the probe of the dial gauge 302 penetrates through the lifting plate 208 and the bottom end is in contact with the top of the positioning plate 3, the top of the support base plate 1 below the positioning plate 3 outside the lifting plate 208 is fixed with an electric push rod 301, the telescopic end of the electric push rod 301 is fixed with the positioning plate 3, the electric push rod 301 drives the positioning plate 3 to ascend and descend, and drives the dial gauge 302 to ascend and descend, and the dial gauge 302 is adjusted to just contact the top of the lifting plate 208.

[0032] The operation process of the embodiment is as follows: in work, after the bottom end of the rotating pair 205 below the tension meter 204 is fixed with the mounting disc 401 above the support base plate 1, the connecting nut 202 at the top of the support top plate 2 can be rotated, and the operator limits the position of the lifting bolt 201 by using a sleeve tool and the like when initially rotating, the electric push rod 301 is started after being initially tightened, the positioning plate 3 is driven to descend until the probe of the dial gauge 302 just contacts the lifting plate 208 around the fixed disc 206, the connecting nut 202 is directly rotated by using a wrench, the tension meter 204 is pulled up, and then the dial gauge 302 can be directly observed, when the reading of the dial gauge 302 changes, the pre-tightening force of the bearing to the shaft core in the shaft body 4 can be determined by the reading of the tension meter 204.

[0033] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A bearing preload detection device, comprising a support base plate (1), a support top plate (2), a positioning plate (3), and a shaft (4), characterized in that: An opening (101) is vertically through the base plate (1) of the bracket. A mounting ring (102) is movably connected to the lower part of the opening (101). A shaft (4) is provided at the bottom end of the mounting ring (102). The shaft core of the shaft (4) passes through the mounting ring (102) and the opening (101) and extends above the base plate (1). A top plate (2) of the bracket is provided above the base plate (1). A lifting screw is movably connected to the top plate (2). A bolt (201) is attached to a fixed frame (203) on the outside of the bolt head of the lifting bolt (201) below the top plate (2) of the bracket. The lifting bolt (201) passes through the top of the fixed frame (203). A tension gauge (204) is provided at the bottom of the fixed frame (203). The pulling end of the top of the tension gauge (204) is fixed to the bottom of the fixed frame (203). A positioning plate (3) is provided above the bracket base plate (1) on the side of the opening (101).

2. The bearing preload detection device according to claim 1, characterized in that: One end of the bracket base plate (1) is fixed with an installation strip (103), and the top of the shaft core of the shaft body (4) is fixed with an installation plate (401). The installation plate (401) is located above the opening (101).

3. The bearing preload detection device according to claim 1, characterized in that: At the four corners of the bottom of the support top plate (2), there are fixed pillars (209), and the bottom ends of the pillars (209) are fixed to the top of the support bottom plate (1).

4. The bearing preload detection device according to claim 1, characterized in that: The lifting bolt (201) above the top plate (2) of the bracket has a connecting nut (202) threaded around its circumference. The connecting nut (202) is supported at the bottom of the top plate (2).

5. The bearing preload detection device according to claim 2, characterized in that: The bottom pull end of the tension gauge (204) is fixed with a rotating joint (205), and the bottom end of the rotating joint (205) is fixed with a fixed plate (206). The fixed plate (206) on the outside of the rotating joint (205) is connected in a ring array with mounting bolts (207). The mounting bolts (207) pass through the fixed plate (206) and are screwed into the mounting plate (401). A lifting plate (208) is fixed on the periphery of the fixed plate (206).

6. The bearing preload detection device according to claim 5, characterized in that: The positioning plate (3) is set above the lifting plate (208). A dial indicator (302) is fixed on the top of the positioning plate (3). The probe of the dial indicator (302) passes through the lifting plate (208) and its bottom end contacts the top of the positioning plate (3). An electric push rod (301) is fixed on the top of the support base plate (1) below the positioning plate (3) on the outside of the lifting plate (208). The telescopic end of the electric push rod (301) is fixed to the positioning plate (3).

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