Radial tensioning device for machining deep groove ball bearing

Abstract

The utility model discloses a radial tensioning device for deep groove ball bearing machining, and relates to the technical field of deep groove ball bearing machining. The device comprises a base, an L-shaped mounting shaft is fixed on the surface of the base; a sleeve shaft is arranged at the end part of the L-shaped mounting shaft; a tensioning assembly is arranged on the circumferential side face of the sleeve shaft. The tensioning assembly comprises a tensioning ring; a tensioning groove is formed in the tensioning ring; a plurality of mounting grooves are formed in the peripheral side surface of the tensioning ring; an elastic diaphragm is hermetically arranged between the inner walls of the mounting groove; a piston cylinder penetrates through and is fixed to the inner wall of the tensioning groove; piston plates are slidably arranged on the inner walls of the piston cylinders; a plurality of movable strips are arranged on the circumferential side face of the tensioning ring. Tensioning pieces are fixed to the side faces of the movable strips. The expansion and the reduction of the elastic diaphragm are controlled by controlling the sliding of the piston plate, the movement of the movable strip is further controlled, the position of the tensioning sheet is further controlled, the tensioning of the tensioning sheet is further realized, and the operation is convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep groove ball bearing processing, in particular to a radial tensioning device used for deep groove ball bearing processing. Background Art

[0002] Deep groove ball bearings, formerly known as radial ball bearings, are the most widely used rolling bearings. They are characterized by low friction resistance and high speed. They can be used on parts that bear radial loads or combined loads of radial and axial loads. They can also be used on parts that bear axial loads, such as small power motors, automobile and tractor gearboxes, machine tool gearboxes, general machines, tools, etc.

[0003] During the assembly process of deep groove ball bearings, when processing the outer ring surface, the inner ring of the outer ring needs to be tightened to achieve the purpose of fixing the outer ring. However, the existing outer ring tightening operation is cumbersome and inconvenient for subsequent maintenance and replacement. It is difficult to control the degree of tightening during the tightening process. Either too low or too high a degree of tightening will lead to the use of the bearing.

[0004] To this end, we provide a radial tensioning device for deep groove ball bearing processing to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a radial tensioning device for deep groove ball bearing processing, which controls the expansion and contraction of the elastic diaphragm by controlling the sliding of the piston plate, thereby controlling the movement of the movable bar, and thereby controlling the position of the tensioning plate, thereby achieving the tensioning of the tensioning plate. The utility model is easy to operate, and solves the problems of the existing outer ring tensioning operation being troublesome, inconvenient for later maintenance and replacement, and difficult to control the degree of tension during the tensioning process. Low or high degree of tension will lead to problems in the use of the bearing.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a radial tensioning device for deep groove ball bearing processing, comprising a base; an L-shaped mounting shaft is fixed to the surface of the base; a sleeve shaft is provided at the end of the L-shaped mounting shaft; a tensioning assembly is provided on the circumferential side of the sleeve shaft; the tensioning assembly comprises a tensioning ring slidably arranged on the circumferential side of the sleeve shaft; a tensioning groove is provided inside the tensioning ring; a plurality of mounting grooves connected to the interior of the tensioning groove are evenly provided on the outer circumferential side of the tensioning ring in a circumferential array; an elastic diaphragm is sealed between the inner walls of the mounting groove; a piston cylinder is fixed through the inner wall of the tensioning groove; the piston cylinder points to the interior of the tensioning groove; a piston plate is slidably provided on the inner wall of the piston cylinder; a plurality of movable bars are evenly distributed in a circumferential array on the circumferential side of the tensioning ring; and a tensioning sheet is fixed on the side of the movable bar.

[0008] The utility model is further configured as follows: a mounting plate is fixed on the surface of the base; an electric telescopic rod is fixed on the side of the mounting plate; a clamping plate is fixed on the telescopic end of the electric telescopic rod; and the side of the clamping plate is adapted to the side of the tensioning piece.

[0009] The utility model is further configured as follows: sleeve rings are symmetrically fixed on both sides of the tensioning ring; a plurality of connecting shafts are fixed between the sleeve rings and the tensioning ring; the inner wall of the sleeve ring is adapted to the peripheral side surface of the sleeve shaft, and the peripheral side surface is adapted to the inner wall of the movable bar.

[0010] The utility model is further configured as follows: a plurality of sliding rods are evenly distributed in a circular array on the circumferential side surface of the collar; a sliding hole is opened through the circumferential side surface of the movable bar to slide with the sliding rods; a limiting plate is fixed on the end of the sliding rod; and a tension spring is connected between the limiting plate and the movable bar.

[0011] The utility model is further configured as follows: a screw rod is rotatably provided on the side of the limit plate; a limit shaft is rotatably provided on the side of the limit plate; the screw rod and the limit shaft are arranged on the limit plates on different rings; the screw rod and the limit shaft are distributed in parallel and face the same direction.

[0012] The utility model is further configured as follows: a slide is provided on the side surface of the screw rod for rotation; the slide is in sliding cooperation with the limit shaft; a piston rod is fixed on the side surface of the slide; the end of the piston rod is fixedly connected to the piston plate; the piston rod is penetrated and rotated into the side surface of the tensioning ring.

[0013] The utility model is further configured as follows: pulleys are fixed to the ends of the screw rod and the limiting shaft; a belt is provided for transmission between the two pulleys; a first friction wheel is fixed to the side of the pulley located on the limiting shaft; an L-shaped fixed shaft is fixed to the end of the limiting shaft; and a fixing plate is fixed to the end of the L-shaped fixed shaft.

[0014] The utility model is further configured as follows: a sliding shaft is slidingly provided on the surface of the fixed plate; a second friction wheel is fixed to one end of the sliding shaft, and a positioning plate is fixed to the other end thereof; a U-shaped plate is symmetrically slidingly provided on the bottom surface of the fixed plate; a positioning spring is connected between the U-shaped plate and the fixed plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model controls the expansion and contraction of the elastic diaphragm by controlling the sliding of the piston plate, thereby controlling the movement of the movable bar, thereby controlling the position of the tensioning plate, and thus achieving the tightening of the tensioning plate, which is easy to operate.

[0017] 2. The utility model realizes the free rotation and limited fixation of the screw rod by controlling the first friction wheel and the second friction wheel. At the same time, rotating the screw rod to adjust the position of the piston plate is more conducive to fine adjustment than directly controlling the sliding of the piston plate, and thus it is easier to adjust the degree of tension.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the structure of a radial tensioning device used for deep groove ball bearing processing.

[0021] Figure 2 It is a structural schematic diagram of the tensioning assembly of the present utility model.

[0022] Figure 3 For the utility model Figure 2 A magnified view of area A.

[0023] Figure 4 For the utility model Figure 2 Another perspective structural diagram.

[0024] Figure 5 It is a structural schematic diagram of the tensioning piece of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the base of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1-base, 2-L-shaped mounting shaft, 3-sleeve, 4-tensioning assembly, 5-tensioning ring, 6-tensioning groove, 7-mounting groove, 8-elastic diaphragm, 9-piston cylinder, 10-piston plate, 11-movable bar, 12-tensioning plate, 13-mounting plate, 14-electric telescopic rod, 15-tightening plate, 16-sleeve, 17-connecting shaft, 18-slide rod, 19-slide hole, 20-limiting plate, 21-tensioning spring, 22-screw, 23-limiting shaft, 24-slide plate, 25-piston rod, 26-pulley, 27-belt, 28-first friction wheel, 29-L-shaped fixed shaft, 30-fixed plate, 31-slide shaft, 32-second friction wheel, 33-positioning plate, 34-U-shaped plate, 35-positioning spring. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] For specific embodiment 1, please refer to Figure 1-6 The utility model is a radial tensioning device for deep groove ball bearing processing, comprising a base 1; an L-shaped mounting shaft 2 is fixed to the surface of the base 1; a sleeve shaft 3 is provided at the end of the L-shaped mounting shaft 2; a tensioning assembly 4 is provided on the side surface of the sleeve shaft 3; the tensioning assembly 4 includes a tensioning ring 5 slidably arranged on the side surface of the sleeve shaft 3; a tensioning groove 6 is provided inside the tensioning ring 5; a plurality of mounting grooves 7 connected to the interior of the tensioning groove 6 are evenly provided on the outer side surface of the tensioning ring 5 in a circumferential array; an elastic diaphragm 8 is sealed between the inner walls of the mounting groove 7; a piston cylinder 9 is fixed through the inner wall of the tensioning groove 6; the piston cylinder 9 points to the interior of the tensioning groove 6; a piston plate 10 is slidably provided on the inner wall of the piston cylinder 9; a plurality of movable bars 11 are evenly distributed in a circumferential array on the side surface of the tensioning ring 5; a tensioning sheet 12 is fixed on the side of the movable bar 11.

[0030] Specifically, a mounting plate 13 is fixed to the surface of the base 1 ; an electric telescopic rod 14 is fixed to the side of the mounting plate 13 ; a tightening plate 15 is fixed to the telescopic end of the electric telescopic rod 14 ; and the side of the tightening plate 15 is adapted to the side of the tensioning piece 12 .

[0031] Furthermore, sleeves 16 are symmetrically fixed on both sides of the tension ring 5 ; a plurality of connecting shafts 17 are fixed between the sleeves 16 and the tension ring 5 ; the inner wall of the sleeve 16 is adapted to the side surface of the sleeve shaft 3 , and its side surface is adapted to the inner wall of the movable bar 11 .

[0032] Furthermore, a number of slide rods 18 are evenly distributed in a circular array on the side of the ring 16; a slide hole 19 is opened on the side of the movable bar 11 to slide with the slide rod 18; a limit plate 20 is fixed to the end of the slide rod 18; a tension spring 21 is connected between the limit plate 20 and the movable bar 11.

[0033] The operation process of this embodiment is as follows: first, the tensioning component 4 and the assembly with the movable bar 11 and the tensioning plate 12 are installed on the base 1, so that the tensioning ring 5 and the sleeve ring 16 are sleeved on the side of the sleeve shaft 3, and then the electric telescopic rod 14 is started, so that the telescopic end of the electric telescopic rod 14 extends, driving the clamping plate 15 to approach the tensioning plate 12 and finally clamp the tensioning plate 12.

[0034] Then, the piston plate 10 is slowly slid along the inner wall of the piston cylinder 9, so that the piston plate 10 slides toward the inside of the tensioning groove 6, and the volume inside the tensioning groove 6 becomes smaller, and the air inside the tensioning groove 6 squeezes the elastic diaphragm 8, and the elastic diaphragm 8 is expanded to push the movable bar 11 to slide along the slide rod 18 toward the direction close to the limit plate 20. The movable bar 11 squeezes the tensioning spring 21 until the tensioning sheet 12 is tightened to a preset degree, and then the sliding of the piston plate 10 is stopped.

[0035] For specific embodiment 2, please refer to Figure 1-6 On the basis of the specific embodiment 1, a screw rod 22 is provided on the side of a limit plate 20 for rotation; a limit shaft 23 is provided on the side of a limit plate 20 for rotation; the screw rod 22 and the limit shaft 23 are provided on the limit plate 20 on different collars 16; the screw rod 22 and the limit shaft 23 are distributed in parallel and face the same direction.

[0036] Specifically, a slide plate 24 is provided on the side of the screw rod 22 for rotation; the slide plate 24 is in sliding cooperation with the limit shaft 23; a piston rod 25 is fixed on the side of the slide plate 24; the end of the piston rod 25 is fixedly connected to the piston plate 10; the piston rod 25 is in rotation cooperation with the side of the tensioning ring 5.

[0037] Furthermore, pulleys 26 are fixed to the ends of the screw rod 22 and the limiting shaft 23; a belt 27 is provided for transmission between the two pulleys 26; a first friction wheel 28 is fixed to the side of the pulley 26 located on the limiting shaft 23; an L-shaped fixed shaft 29 is fixed to the end of the limiting shaft 23; and a fixed plate 30 is fixed to the end of the L-shaped fixed shaft 29.

[0038] Furthermore, a sliding shaft 31 is slidingly provided on the surface of the fixed plate 30; a second friction wheel 32 is fixed to one end of the sliding shaft 31, and a positioning plate 33 is fixed to the other end thereof; a U-shaped plate 34 is symmetrically slidingly provided on the bottom surface of the fixed plate 30; a positioning spring 35 is connected between the U-shaped plate 34 and the fixed plate 30.

[0039] The operation process of this embodiment is as follows: first, the two U-shaped plates 34 are slid away from each other to squeeze the positioning spring 35, so that the inner wall of the U-shaped plate 34 is disengaged from the positioning plate 33, and the restriction on the positioning plate 33 is released. Then, the positioning plate 33 is pulled downward, so that the positioning plate 33 drives the sliding shaft 31 and the second friction wheel 32 to slide downward, so that the first friction wheel 28 is disengaged from the second friction wheel 32, thereby releasing the restriction on the corresponding pulley 26, and then releasing the restriction on the other pulley 26, and then releasing the restriction on the screw rod 22.

[0040] Then slowly rotate the screw rod 22 to drive the slide plate 24 to slide slowly along the limit shaft 23, and then drive the piston rod 25 to slide slowly, and then drive the piston plate 10 to slide slowly along the inner wall of the piston cylinder 9, so that the piston plate 10 slides toward the inside of the tightening groove 6, and then the volume inside the tightening groove 6 becomes smaller, and then the air inside the tightening groove 6 squeezes the elastic diaphragm 8, and then the elastic diaphragm 8 is expanded to push the movable bar 11 to slide along the slide rod 18 toward the direction of the limit plate 20, and the movable bar 11 squeezes the tensioning spring 21 until the tensioning plate 12 is tightened to the preset degree, and then stop rotating the screw rod 22.

[0041] Then, the sliding shaft 31 is slid upward, so that the sliding shaft 31 drives the second friction wheel 32 to slide and press against the first friction wheel 28, and then the two U-shaped plates 34 are loosened, so that the two U-shaped plates 34 are pushed closer to each other by the positioning springs 35, and finally the inner wall of the U-shaped plate 34 is fitted with the positioning plate 33. At this time, the corresponding pulley 26 cannot rotate, and then the other pulley 26 cannot rotate, and then the screw rod 22 cannot rotate, and then the slide plate 24 cannot slide, and then the piston rod 25 and the piston plate 10 cannot move, so that the movable bar 11 remains stationary.

[0042] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A radial tensioning device for deep groove ball bearing processing, comprising a base (1); an L-shaped mounting shaft (2) fixed to the surface of the base (1); a sleeve shaft (3) provided at the end of the L-shaped mounting shaft (2); and a tensioning assembly (4) provided on the circumferential side of the sleeve shaft (3); characterized in that: The tensioning assembly (4) includes a tensioning ring (5) slidably arranged on the peripheral side of the sleeve shaft (3); a tensioning groove (6) is provided inside the tensioning ring (5); a plurality of mounting grooves (7) connected to the interior of the tensioning groove (6) are evenly provided on the outer peripheral side of the tensioning ring (5) in a circumferential array; an elastic diaphragm (8) is sealed between the inner walls of the mounting groove (7); A piston cylinder (9) is fixedly provided on the inner wall of the tensioning groove (6); the piston cylinder (9) points to the inside of the tensioning groove (6); a piston plate (10) is slidably provided on the inner wall of the piston cylinder (9); a plurality of movable bars (11) are evenly distributed in a circular array on the circumferential side of the tensioning ring (5); a tensioning sheet (12) is fixed on the side of the movable bar (11).

2. The radial tensioning device for deep groove ball bearing processing according to claim 1, characterized in that: A mounting plate (13) is fixed to the surface of the base (1); an electric telescopic rod (14) is fixed to the side of the mounting plate (13); a tightening plate (15) is fixed to the telescopic end of the electric telescopic rod (14); and the side of the tightening plate (15) is adapted to the side of the tensioning plate (12).

3. The radial tensioning device for deep groove ball bearing processing according to claim 2, characterized in that: Sleeve rings (16) are symmetrically fixed on both sides of the tensioning ring (5); a plurality of connecting shafts (17) are fixed between the sleeve rings (16) and the tensioning ring (5); the inner wall of the sleeve ring (16) is adapted to the peripheral side surface of the sleeve shaft (3), and the peripheral side surface is adapted to the inner wall of the movable bar (11).

4. The radial tensioning device for deep groove ball bearing processing according to claim 3, characterized in that: A plurality of slide bars (18) are evenly distributed and fixed on the circumferential side surface of the collar (16) in a circular array; a slide hole (19) is provided through the circumferential side surface of the movable bar (11) for sliding engagement with the slide bar (18); a limit plate (20) is fixed to the end of the slide bar (18); and a tension spring (21) is connected between the limit plate (20) and the movable bar (11).

5. The radial tensioning device for deep groove ball bearing processing according to claim 4, characterized in that: A screw rod (22) is rotatably provided on the side of the limit plate (20); a limit shaft (23) is rotatably provided on the side of the limit plate (20); the screw rod (22) and the limit shaft (23) are provided on the limit plates (20) on different collars (16); the screw rod (22) and the limit shaft (23) are distributed in parallel and face the same direction.

6. The radial tensioning device for deep groove ball bearing processing according to claim 5, characterized in that: A slide plate (24) is provided on the side surface of the screw rod (22) for rotational threading; the slide plate (24) is in sliding engagement with the limiting shaft (23); a piston rod (25) is fixed to the side surface of the slide plate (24); the end of the piston rod (25) is fixedly connected to the piston plate (10); the piston rod (25) is in rotational engagement with the side surface of the tensioning ring (5).

7. The radial tensioning device for deep groove ball bearing processing according to claim 6, characterized in that: The ends of the screw rod (22) and the limiting shaft (23) are fixed with pulleys (26); a belt (27) is provided for transmission between the two pulleys (26); a first friction wheel (28) is fixed on the side of the pulley (26) on the limiting shaft (23); an L-shaped fixed shaft (29) is fixed on the end of the limiting shaft (23); and a fixing plate (30) is fixed on the end of the L-shaped fixed shaft (29).

8. The radial tensioning device for deep groove ball bearing processing according to claim 7, characterized in that: A sliding shaft (31) is slidably provided on the surface of the fixed plate (30); a second friction wheel (32) is fixed to one end of the sliding shaft (31), and a positioning plate (33) is fixed to the other end thereof; a U-shaped plate (34) is symmetrically slidably provided on the bottom surface of the fixed plate (30); a positioning spring (35) is connected between the U-shaped plate (34) and the fixed plate (30).

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