High-bearing-capacity deep groove ball bearing

Abstract

The utility model discloses a high-bearing-capacity deep groove ball bearing which comprises an outer shaft, an inner shaft is arranged on the inner side of the outer shaft, a plurality of rolling ball sets are arranged between the outer shaft and the inner shaft, a ball seat is further arranged between the outer shaft and the inner shaft, a ball body is arranged in the ball seat, a plurality of first grooves are formed in the outer wall of the outer shaft, and a plurality of second grooves are formed in the outer wall of the outer shaft. A second groove is formed in the inner wall of the outer shaft, and an adjusting assembly is arranged in the first groove. According to the high-bearing-capacity deep groove ball bearing, the two rolling ball sets are arranged, the two rolling ball sets bear the two sides of the inner shaft correspondingly, the bearing capacity of the inner shaft can be improved, the ball seat is arranged between the outer shaft and the inner shaft, balls in the ball seat can assist in supporting the inner shaft under the condition that rotation of the inner shaft is not affected, and the bearing capacity of the inner shaft is improved. And in addition, the positions of the ball seat and the ball body can be adjusted through the inner hexagonal rotating cylinder and the screw rod, so that assembling and later-period disassembling and overhauling are facilitated, and the practicability of the inner shaft is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bearing, concretely to a high load deep groove ball bearing. BACKGROUND

[0002] The deep groove ball bearing is the most common and frequently used type of rolling bearing, and its structure is relatively simple, usually composed of an outer ring, an inner ring, a set of steel balls and a retainer. The simple structure makes it relatively low in manufacturing cost, easy to mass-produce and capable of achieving high precision, suitable for high-speed or even extremely high-speed operation and very durable without frequent maintenance, which makes it widely used in mechanical equipment requiring continuous high-speed operation.

[0003] At present, the existing deep groove ball bearing is usually installed in the bearing seat with the outer ring, and the inner ring is used to bear the rotating part. However, when the weight of the rotating part is greater than the designed load, the bearing will bear too much load, the contact stress between the inner ring of the bearing and the rolling body will increase, and the wear will be accelerated. This wear not only reduces the precision and performance of the bearing, but also may cause noise and vibration. SUMMARY

[0004] The utility model discloses a high load deep groove ball bearing, which solves the problem of the existing deep groove ball bearing in the prior art, i.e. when the weight of the rotating part is greater than the designed load, the bearing will bear too much load, the contact stress between the inner ring of the bearing and the rolling body will increase, and the wear will be accelerated.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high load deep groove ball bearing, comprising an outer shaft,

[0006] The inner side of the outer shaft is provided with an inner shaft, and a plurality of groups of rolling balls are arranged between the outer shaft and the inner shaft. A ball seat is further arranged between the outer shaft and the inner shaft, and a ball body is arranged inside the ball seat. A plurality of groups of grooves one are formed in the outer wall of the outer shaft, and a groove two is formed in the inner wall of the outer shaft. An adjusting assembly is arranged in the groove one.

[0007] Preferably, the adjusting assembly comprises an inner hexagonal rotating drum, which is installed in the groove one. A screw rod is arranged in the groove two, and the screw rod is connected with the inner hexagonal rotating drum. An inner threaded tube is threadedly connected to the outer side of the screw rod, and the inner threaded tube is connected with the ball seat. The inner wall of the inner threaded tube is slidingly connected with the inner wall of the groove two.

[0008] In the above technical scheme, the hexagonal wrench can rotate the inner hexagonal rotating drum, the inner hexagonal rotating drum drives the screw rod to rotate, the screw rod rotating drives the internally threaded pipe to move to the end close to the inner shaft, thereby driving the ball seat and the ball to move to the end close to the inner shaft, so that the ball supports the inner shaft outer wall, and the second groove guides the vertical movement of the internally threaded pipe.

[0009] Preferably, the ball seat and the ball are provided with a plurality of groups, and the ball seat and the ball are arranged at equal intervals around the outer shaft central axis.

[0010] In the above technical scheme, the plurality of groups of ball seats and balls can respectively abut against each position of the inner shaft, so as to assist in supporting each position of the inner shaft.

[0011] Preferably, the outer wall of the inner hexagonal rotating drum is fixed with a tooth ring, and the first groove is provided with a locking assembly.

[0012] In the above technical scheme, the tooth ring is arranged on the outer wall of the inner hexagonal rotating drum, so as to lock the tooth ring through the locking assembly, thereby locking the inner hexagonal rotating drum and the screw rod.

[0013] Preferably, the locking assembly comprises a movable rod, the movable rod is arranged through the outer shaft, and the side of the movable rod is fixed with a limiting clamp, the limiting clamp is engaged with the tooth ring, and the bottom of the movable rod is fixed with a spring.

[0014] In the above technical scheme, the locking of the tooth ring, the inner hexagonal rotating drum and the screw rod can avoid the self-rotation of the inner hexagonal rotating drum and the screw rod from causing the ball seat to loosen, thereby improving the stability.

[0015] Compared with the prior art, the high-load deep-groove ball bearing has the advantages that,

[0016] (1) The two groups of rolling ball groups are arranged on both sides of the inner shaft, which helps to improve the bearing capacity of the inner shaft, and the ball seat arranged between the outer shaft and the inner shaft can assist in supporting the inner shaft without affecting the rotation of the inner shaft, thereby further improving the bearing capacity of the inner shaft, and the position of the ball seat and the ball can be adjusted through the inner hexagonal rotating drum and the screw rod, so as to facilitate assembly and later disassembly and maintenance, and improve the practicability.

[0017] (2) After adjusting the position of the ball seat and the ball through the inner hexagonal rotating drum and the screw rod, the spring force drives the movable rod and the limiting clamp to generate an upward force, so that the limiting clamp is clamped into the tooth groove of the tooth ring, thereby locking the tooth ring, the inner hexagonal rotating drum and the screw rod, avoiding the self-rotation of the inner hexagonal rotating drum and the screw rod from causing the ball seat to loosen, and improving the stability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view cross-section structure schematic view of the utility model;

[0019] Figure 2 It is a female threaded pipe cross-section structure schematic view of the utility model;

[0020] Figure 3 It is a utility model Figure 2 Structure schematic view of A place in the middle.

[0021] In the drawing: 1, outer shaft, 2, inner shaft, 3, rolling ball group, 4, ball seat, 5, ball, 6, inner hexagonal rotating drum, 7, screw rod, 8, female threaded pipe, 9, gear ring, 10, movable rod, 11, limit card, 12, spring. Specific implementation

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

[0023] Please refer to Figures 1-3 The utility model provides a technical scheme: a high-bearing deep groove ball bearing, as shown in Figure 1 、 Figure 2 and Figure 3 , the inner side of the outer shaft 1 is provided with the inner shaft 2, and a plurality of groups of rolling ball groups 3 are arranged between the outer shaft 1 and the inner shaft 2, and the ball seat 4 is further arranged between the outer shaft 1 and the inner shaft 2, and the ball seat 4 is internally provided with the ball 5, a plurality of groups of recesses one are formed in the outer wall of the outer shaft 1, and recess two is formed in the inner wall of the outer shaft 1, and the adjusting assembly is arranged in the recess one.

[0024] As shown in Figure 1 and Figure 2 , the adjusting assembly comprises an inner hexagonal rotating drum 6, the inner hexagonal rotating drum 6 is installed in the recess one, the screw rod 7 is arranged in the recess two, and the screw rod 7 is connected with the inner hexagonal rotating drum 6, the female threaded pipe 8 is threadedly connected to the outer side of the screw rod 7, and the female threaded pipe 8 is connected with the ball seat 4, and the outer wall of the female threaded pipe 8 is slidingly connected with the inner wall of the recess two.

[0025] As shown in Figure 1 , the ball seat 4 and the ball 5 are both provided with a plurality of groups, and the ball seat 4 and the ball 5 are arranged at equal intervals around the central axis of the outer shaft 1.

[0026] As shown in Figure 1 and Figure 3 , the outer wall of the inner hexagonal rotating drum 6 is fixed with the gear ring 9, and the locking assembly is arranged in the recess one.

[0027] As Figure 1 And Figure 3 As shown in the drawings, the locking assembly comprises a movable rod 10 which is arranged outside the outer shaft 1, and the side of the movable rod 10 is fixed with a limiting card 11 which is engaged with the tooth ring 9, and the bottom of the movable rod 10 is fixed with a spring 12.

[0028] Working principle: when in use, the movable rod 10 can be pressed by a screwdriver or a sharp object, so that the movable rod 10 drives the limiting card 11 to descend, and the limiting card 11 is separated from the tooth ring 9, at this time, the tooth ring 9 and the inner hexagonal rotating cylinder 6 are in an unlocked state, then the inner hexagonal rotating cylinder 6 and the screw rod 7 can be rotated by a hexagonal wrench, so that the screw rod 7 drives the inner threaded pipe 8 to move to the end close to the inner shaft 2, and drives the ball seat 4 and the ball 5 to move to the end close to the inner shaft 2, so that the ball 5 abuts against the outer wall of the inner shaft 2 to support it, then the movable rod 10 can be released, the movable rod 10 will move upward under the elastic force of the spring 12, and will drive the limiting card 11 to be clamped into the tooth groove of the tooth ring 9, so as to lock the tooth ring 9, the inner hexagonal rotating cylinder 6 and the screw rod 7, and avoid that the inner hexagonal rotating cylinder 6 and the screw rod 7 rotate to cause the ball seat 4 to loosen.

[0029] This completes the entire operation, and the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0030] The orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only a simplified description for the convenience of describing the present application, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the present application.

[0031] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high load deep groove ball bearing, comprising an outer shaft (1), characterized in that: the inner side of the outer shaft (1) is provided with an inner shaft (2), and a plurality of groups of rolling ball groups (3) are arranged between the outer shaft (1) and the inner shaft (2), a ball seat (4) is further arranged between the outer shaft (1) and the inner shaft (2), and a ball (5) is arranged inside the ball seat (4), a plurality of groups of recesses one are formed in the outer wall of the outer shaft (1), recesses two are formed in the inner wall of the outer shaft (1), and an adjusting assembly is arranged in the recesses one.

2. The high load deep groove ball bearing of claim 1, wherein: The adjusting assembly comprises an inner hexagonal rotating drum (6) mounted in the recesses one, a screw rod (7) is arranged in the recesses two, and the screw rod (7) is connected with the inner hexagonal rotating drum (6), an internally threaded pipe (8) is threadedly connected to the outer side of the screw rod (7), and the internally threaded pipe (8) is connected with the ball seat (4), and the outer wall of the internally threaded pipe (8) is slidingly connected with the inner wall of the recesses two.

3. The high load deep groove ball bearing of claim 1, wherein: The ball seat (4) and the ball (5) are arranged in a plurality of groups, and the ball seat (4) and the ball (5) are arranged at equal intervals around the central axis of the outer shaft (1).

4. The high load deep groove ball bearing of claim 2, wherein: The outer wall of the inner hexagonal rotating drum (6) is fixed with a tooth ring (9), and a locking assembly is arranged in the recesses one.

5. The high load deep groove ball bearing of claim 4, wherein: The locking assembly comprises a movable rod (10) which is arranged through the outer side of the outer shaft (1), a limiting clamp (11) is fixed to the side of the movable rod (10), the limiting clamp (11) is engaged with the tooth ring (9), and a spring (12) is fixed to the bottom of the movable rod (10).

Images