Lower bearing in-shaft pushing device

Abstract

The utility model provides a lower bearing in-shaft pushing device, and relates to the technical field of bearing assembly. A bearing bracket is arranged at the top of the base; an adjusting rotating shaft is mounted in the center of the bottom of the bearing bracket in a rotating manner; three screw rods are rotationally mounted at the bottom of the bearing bracket in an annular array manner; three bearing positioning blocks are mounted on the bearing bracket in a sliding manner; four guide columns are symmetrically welded to the top of the base. An upper supporting plate is installed on the outer sides of the four guide columns in a sliding mode. A rotating shaft fixing cylinder is embedded in the center of the bottom of the upper supporting plate; and a locking block is tightly mounted in the center of the top of the upper supporting plate in a sliding manner. According to the device, bearings and rotating shafts of different specifications can be fixed through adjustment, multiple different tools do not need to be used, and the adaptability is obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing assembly technical field especially relates to a lower bearing into shaft pushing device. BACKGROUND

[0002] Bearing is mainly used for supporting the shaft of rotating machinery, can reduce friction, reduce energy loss, in order to be able to accurately, stably push bearing to the shaft, and ensure that the position and attitude of bearing are correct in the installation process, when assembling bearing and rotating shaft, lower bearing into shaft pushing device is usually used.

[0003] At present, the tool used when assembling bearing and rotating shaft is mostly positioned on the bottom of bearing and on the top of rotating shaft, but the structure of positioning bearing and rotating shaft is mostly fixed structure, thus only single specification bearing and rotating shaft can be fixed, and different tools need to be used when assembling different specification bearing and rotating shaft, and the adaptability is poor. SUMMARY

[0004] The utility model provides a lower bearing into shaft pushing device, which can fix different specification bearings and rotating shafts by adjustment, without using multiple different tools, and the adaptability is obviously enhanced.

[0005] The first aspect of the present disclosure provides a lower bearing into shaft pushing device, specifically comprising: a base;

[0006] A bearing bracket is arranged on the top of the base; an adjusting rotating shaft is rotatably arranged at the central position of the bottom of the bearing bracket; three lead screws are rotatably arranged on the bottom of the bearing bracket in an annular array; three bearing positioning blocks are slidably arranged on the bearing bracket; four guide columns are symmetrically welded on the top of the base; an upper support plate is slidably arranged on the outer side of the four guide columns; a rotating shaft fixing cylinder is embeddedly arranged at the central position of the bottom of the upper support plate; and a locking block is tightly slidably arranged at the central position of the top of the upper support plate.

[0007] In at least some embodiments, a circular hole is arranged at the central position of the upper support plate, and the inner diameter of the circular hole is equal to the cross-sectional diameter of the rotating shaft fixing cylinder.

[0008] In at least some embodiments, a bevel gear is arranged on the outer side of the adjusting rotating shaft and one end of the three lead screws, and the bevel gears at one end of the three lead screws are engaged with the bevel gear on the outer side of the adjusting rotating shaft.

[0009] In at least some embodiments, a gap groove is arranged at the upper position of the rotating shaft fixing cylinder and on the left and right sides thereof, a corresponding protruding plate is arranged on the inner wall of the left and right sides of the locking block, and the protruding plates on the inner wall of the left and right sides of the locking block are embedded in the gap groove on the upper left and right sides of the rotating shaft fixing cylinder after the locking block is installed.

[0010] In at least some embodiments, three long strip-shaped guide grooves are arranged in a ring array on the bearing bracket, the bearing positioning blocks can slide horizontally under the support of the long strip-shaped guide grooves, and the threaded holes at the bottom of the bearing positioning blocks are all embedded with the lead screws.

[0011] In at least some embodiments, the locking blocks are tightly attached to the two L-shaped plates at the top of the upper support plate after installation, a layer of rubber is wrapped outside the locking blocks, a hole is arranged on the front outer wall of the rotating shaft fixing cylinder, and a magnet block is inserted into the hole.

[0012] In at least some embodiments, a cylindrical groove is arranged at the top middle position of the bearing bracket, the top end of the adjusting rotating shaft extends into the cylindrical groove at the top of the bearing bracket, and the top end of the adjusting rotating shaft is provided with a hexagonal inner recess.

[0013] The utility model provides a lower bearing enters into shaft pushing device, has the following beneficial effects:

[0014] In the utility model, the lead screw on the bearing bracket cooperates with the bearing positioning block to support and fix bearings of different specifications, the rotating shaft fixing cylinder of the rotating shaft is fixed by the locking block, and the rotating shaft fixing cylinder can be disassembled by only pushing the locking block forward and backward, so that the rotating shaft fixing cylinder of different specifications can be easily replaced, the device can fix bearings and rotating shafts of different specifications by adjustment, without using multiple different toolings, and the adaptability is obviously enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.

[0016] The drawings described in the following description only relate to some embodiments of the utility model, and are not a limitation on the utility model.

[0017] In the drawings:

[0018] Figure 1 A main shaft side schematic view of the overall structure of the application is shown;

[0019] Figure 2 A top shaft side schematic view of the overall structure of the application is shown;

[0020] Figure 3 A top shaft side schematic view of the rotating shaft fixing cylinder of another specification in the application after installation is shown;

[0021] Figure 4 A partial rear shaft side schematic view of the locking block when disassembled in the application is shown;

[0022] Figure 5A schematic view of the bearing bracket in the present application is shown from the main shaft side;

[0023] Figure 6 A schematic view of the bearing bracket in the present application is shown from the top shaft side;

[0024] List of reference signs

[0025] 1, base; 2, bearing bracket; 3, adjusting rotating shaft; 4, screw rod; 5, bearing positioning block; 6, guide column; 7, upper support plate; 8, rotating shaft fixing cylinder; 9, locking block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of 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.

[0027] Embodiment one: please refer to Figures 1 to 6 :

[0028] The utility model provides a kind of lower bearing enters shaft pushing device, it include: base 1;

[0029] The top of the base 1 is provided with a bearing bracket 2, the base 1 is used for supporting the upper part structure of the device, and the bearing bracket 2 is used for supporting the lead screw 4 and the bearing positioning block 5; the bottom central position of the bearing bracket 2 is rotatably provided with an adjusting rotating shaft 3, in use, the bearing can be placed on the top of the bearing bracket 2, then a hexagonal inner recess groove in the top of the adjusting rotating shaft 3 is inserted into the hexagonal inner recess groove in the top of the adjusting rotating shaft 3, and the adjusting rotating shaft 3 is rotated, the adjusting rotating shaft 3 is rotated, and the three lead screws 3 are driven to rotate synchronously through the bevel gears on the outer side of the adjusting rotating shaft 3 and the bevel gears at one end of the lead screw 3; the bottom of the bearing bracket 2 is also rotatably provided with three lead screws 4 in an annular array, the lead screw 4 is rotated, and the bearing positioning block 5 is driven to slide horizontally on the bearing bracket 2 under the support of the long strip-shaped guide groove, so that the outer wall of the bearing positioning block 5 is tightly attached to the outer side of the bearing of different specifications, and the position of the bearing is fixed; the bearing bracket 2 is slidably provided with three bearing positioning blocks 5, the bearing positioning blocks 5 can be flexibly moved along the preset path to adapt to the installation requirements of bearings of different specifications; the top of the base 1 is symmetrically welded with four guide columns 6, the guide columns 6 are used for slidingly supporting the upper support plate 7; the outer side of the four guide columns 6 is slidably provided with an upper support plate 7, after the rotating shaft is fixed, the upper support plate 7 is driven to slide downward under the support of the guide column 6 by an external hydraulic cylinder, in this process, the rotating shaft fixing cylinder 8 and the rotating shaft are also synchronously moved downward, then the bottom end of the rotating shaft is embedded in the circular hole in the middle of the bearing to complete the assembly; a rotating shaft fixing cylinder 8 is embedded and installed at the bottom central position of the upper support plate 7, the rotating shaft fixing cylinder 8 is used for fixing the rotating shaft, in the installation of the rotating shaft, the top end of the rotating shaft is inserted into the cylindrical hole in the inner side of the bottom of the rotating shaft fixing cylinder 8, then the magnet block is inserted into the opening in the front side of the rotating shaft fixing cylinder 8, so that the magnet block and the rotating shaft are adsorbed, and the position of the rotating shaft is fixed by the adsorption force; the top central position of the upper support plate 7 is also closely slidably provided with a locking block 9, in use, the corresponding rotating shaft fixing cylinder 8 is selected according to the rotating shaft specification, the top end of the rotating shaft fixing cylinder 8 is inserted into the circular hole in the central position of the upper support plate 7 from bottom to top, and then the locking block 9 is pushed from front to back and installed between the two L-shaped plates on the top of the upper support plate 7, so that the position of the rotating shaft fixing cylinder 8 is fixed.

[0030] In the embodiment of the present disclosure, as shown in Figures 2-4 , the center position of the upper support plate 7 is provided with an up-down through circular hole, and the inner diameter of the circular hole is equal to the cross-sectional diameter of the rotating shaft fixing cylinder 8, in use, the corresponding rotating shaft fixing cylinder 8 is selected according to the rotating shaft specification, and the top end of the rotating shaft fixing cylinder 8 is inserted into the circular hole in the central position of the upper support plate 7 from bottom to top.

[0031] In the embodiment of the present disclosure, as shown in Figure 1 and Figure 6As shown, the outer side of the adjusting rotating shaft 3 and one end of the three lead screws 4 are provided with a bevel gear, and the bevel gears at one end of the three lead screws 4 are engaged with the bevel gear on the outer side of the adjusting rotating shaft 3, so that when the adjusting rotating shaft 3 rotates, the three lead screws 3 can be driven to rotate synchronously through the cooperation of the bevel gear on the outer side of the adjusting rotating shaft 3 and the bevel gear at one end of the lead screw 3.

[0032] In the embodiments of the present disclosure, as shown in Figures 2-4 As shown, the upper position of the rotating shaft fixing cylinder 8 is provided with a notch groove on the left and right sides, and a corresponding protruding plate is arranged on the inner wall of the left and right sides of the locking block 9, and the protruding plate on the inner wall of the left and right sides of the locking block 9 is embedded in the notch groove on the left and right sides of the rotating shaft fixing cylinder 8 after installation. In use, the corresponding rotating shaft fixing cylinder 8 can be selected according to the rotating shaft specification, and the top end of the rotating shaft fixing cylinder 8 is inserted into the circular hole in the center position of the upper supporting plate 7 from bottom to top, and then the locking block 9 is pushed from front to back and installed between the two L-shaped plates on the top of the upper supporting plate 7, so that the position of the rotating shaft fixing cylinder 8 can be fixed firmly.

[0033] In the embodiments of the present disclosure, as shown in Figure 1 , Figure 5 and Figure 6 As shown, three long strip-shaped guide grooves are arranged in a ring array on the bearing bracket 2, the bearing positioning block 5 can slide horizontally under the support of the long strip-shaped guide groove, and the threaded holes at the bottom of the bearing positioning block 5 are embedded with the lead screw 4. When the lead screw 4 rotates, it will drive the bearing positioning block 5 to slide horizontally under the support of the long strip-shaped guide groove on the bearing bracket 2 through the threads on the outer side of the lead screw 4, so that the outer wall of the bearing positioning block 5 can be tightly attached to the outer side of the bearing of different specifications, thereby fixing the position of the bearing.

[0034] In the embodiments of the present disclosure, as shown in Figure 1 and Figure 5 As shown, a cylindrical groove is arranged at the top middle position of the bearing bracket 2, the top end of the adjusting rotating shaft 3 extends into the cylindrical groove at the top of the bearing bracket 2, and the top end of the adjusting rotating shaft 3 is provided with a hexagonal inner recess. When the rotating shaft fixing cylinder 8 pushes the rotating shaft downward, the bottom end of the rotating shaft will be embedded in the circular hole in the middle of the bearing, and then the bottom end of the rotating shaft can continue to move downward into the cylindrical groove at the top middle position of the bearing bracket 2, ensuring that the rotating shaft and the bearing are assembled, and the adjusting rotating shaft 3 can be rotated by using an internal hexagonal wrench inserted into the hexagonal inner recess at the top of the adjusting rotating shaft 3.

[0035] In the embodiments of the present disclosure, as shown in Figures 1-6As shown, the locking block 9 is installed and tightly attached to the two L-shaped plates on the top of the upper support plate 7, and a layer of rubber is wrapped outside the locking block 9. A hole is provided on the front side of the outer wall of the rotating shaft fixing cylinder 8, and a magnet block is inserted into the hole. Therefore, the locking block 9 is not easy to move forward and backward after installation, which ensures the firmness of the rotating shaft fixing cylinder 8. When installing the rotating shaft, the top end of the rotating shaft can be inserted into the cylindrical hole on the inner side of the bottom of the rotating shaft fixing cylinder 8, and then the magnet block is inserted into the hole on the front side of the rotating shaft fixing cylinder 8. In this way, the magnet block and the rotating shaft are attracted, so that the position of the rotating shaft can be fixed by the attraction force.

[0036] The working principle of the embodiment is as follows: during installation, the base 1 can be fixed on the machining table, and the top surface of the upper support plate 7 is fixedly connected to one end of the external hydraulic cylinder. During use, the bearing can be placed on the top of the bearing bracket 2, and then a hexagonal socket wrench can be inserted into the hexagonal recess on the top of the adjusting rotating shaft 3 to drive it to rotate. When the adjusting rotating shaft 3 rotates, it can drive the three lead screws 3 to rotate synchronously through the cooperation of the bevel gears on the outer side of the adjusting rotating shaft 3 and the bevel gears on one end of the lead screws 3. When the lead screws 4 rotate, the bearing positioning block 5 can slide horizontally on the long strip-shaped guide groove on the bearing bracket 2 under the support of the long strip-shaped guide groove, so that the outer wall of the bearing positioning block 5 can tightly attach to the outer side of the bearing of different specifications, thereby fixing the position of the bearing. During use, the corresponding rotating shaft fixing cylinder 8 can be selected according to the specifications of the rotating shaft, and the top end of the rotating shaft fixing cylinder 8 can be inserted into the circular hole in the center of the upper support plate 7 from bottom to top. Then, the locking block 9 can be pushed from front to back and installed between the two L-shaped plates on the top of the upper support plate 7, so that the position of the rotating shaft fixing cylinder 8 can be firmly fixed. Then, the top end of the rotating shaft can be inserted into the cylindrical hole on the inner side of the bottom of the rotating shaft fixing cylinder 8, and then the magnet block can be inserted into the hole on the front side of the rotating shaft fixing cylinder 8. In this way, the magnet block and the rotating shaft are attracted, so that the position of the rotating shaft can be fixed by the attraction force. After the rotating shaft is fixed, the upper support plate 7 can be pushed by the external hydraulic cylinder and slid downward under the support of the guide column 6. During this process, the rotating shaft fixing cylinder 8 and the rotating shaft also move downward synchronously, and then the bottom end of the rotating shaft is embedded into the circular hole in the middle of the bearing to complete the assembly.

[0037] In this document, the following points need to be noted:

[0038] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the usual design.

[0039] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0040] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A push down bearing into shaft device, comprising: Base (1); It is characterized in that: The top of the base (1) is provided with a bearing bracket (2); The bottom central position of the bearing bracket (2) is rotatably provided with an adjusting rotating shaft (3); The bottom of the bearing bracket (2) is also rotatably provided with three lead screws (4) in an annular array; The bearing bracket (2) is slidably provided with three bearing positioning blocks (5); The top of the base (1) is symmetrically welded with four guide columns (6); The outer side of the four guide columns (6) is slidably provided with an upper support plate (7); The bottom central position of the upper support plate (7) is embeddedly provided with a rotating shaft fixing cylinder (8); The top central position of the upper support plate (7) is also tightly slidably provided with a locking block (9).

2. The lower bearing into shaft pushing device according to claim 1, wherein, The adjusting rotating shaft (3) and one end of the three lead screws (4) are provided with a bevel gear, and the bevel gears at one end of the three lead screws (4) are engaged with the bevel gear on the outer side of the adjusting rotating shaft (3).

3. The lower bearing into shaft pushing device according to claim 1, wherein, The bearing bracket (2) is provided with three long strip-shaped guide grooves in an annular array, the bearing positioning blocks (5) can slide horizontally under the support of the long strip-shaped guide grooves, and the threaded holes at the bottom of the bearing positioning blocks (5) are embedded with the lead screws (4).

4. The lower bearing into shaft pushing device according to claim 1, wherein, The top central position of the bearing bracket (2) is provided with a cylindrical groove, the top end of the adjusting rotating shaft (3) extends into the cylindrical groove at the top of the bearing bracket (2), and the top end of the adjusting rotating shaft (3) is provided with a hexagonal recess.

5. The lower bearing into shaft pushing device according to claim 1, wherein, The central position of the upper support plate (7) is provided with an upper and lower through hole, and the inner diameter of the through hole is equal to the cross-sectional diameter of the rotating shaft fixing cylinder (8).

6. The lower bearing into shaft pushing device according to claim 1, wherein, The upper position of the rotating shaft fixing cylinder (8) is provided with a notch groove on the left and right sides, and a corresponding protruding plate is provided on the inner wall of the left and right sides of the locking block (9), and the protruding plates on the inner wall of the left and right sides of the locking block (9) are embedded in the notch grooves on the left and right sides of the rotating shaft fixing cylinder (8) after installation.

7. The lower bearing into shaft pushing device according to claim 1, wherein, The locking block (9) will be tightly attached to the two L-shaped plates at the top of the upper support plate (7) after installation, and the outer side of the locking block (9) is wrapped with a layer of rubber, and a magnet block is inserted into the hole in the front outer wall of the rotating shaft fixing cylinder (8).

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