A rotary support device

Abstract

The utility model relates to a kind of rotary support devices, belong to support device technical field, solve the problem that current rotary support device structure is complex, positioning accuracy is poor, prone to failure under complex working condition, cannot freely rotate. Rotary support device includes: support base;It is located above support base, and is fixedly connected with support base's support bearing;Locking column that passes through the bearing inner ring of support bearing;Pass through the bearing lock nut of support base, and the first end locking connection of bearing lock nut with the locking column;It is located above support base's bearing gland;It is located above bearing gland's support table, locking column passes through bearing gland, and is abutted with support table;Bearing outer ring of bearing gland compression support bearing will support bearing be fixed between support base and bearing gland;Support table and bearing gland have preset distance;Bearing outer ring and bearing inner ring relatively rotating setting. The rotary support device structure is simple, positioning accuracy is higher, not prone to failure under complex working condition.

Description

Technical Field

[0001] This utility model relates to the field of support device technology, and in particular to a rotating support device. Background Technology

[0002] In complex working conditions such as high temperature, high heat, or high vacuum environments, reliable support for parts is required in certain situations. Furthermore, if the part needs to change direction, the support must be able to rotate freely. Traditionally, a three-jaw mechanical chuck is used for rotational support. However, three-jaw mechanical chucks typically use grease lubrication, which limits their application in high temperature, high heat, and vacuum environments. They also have a complex structure, usually composed of multiple parts, making it difficult to guarantee sufficiently high positioning accuracy. Additionally, the rotation of a three-jaw mechanical chuck is driven by a rack and pinion mechanism, preventing free rotation. Utility Model Content

[0003] The present invention aims to provide a rotary support device to solve the problems of existing rotary support devices having complex structures, poor positioning accuracy, easy failure under complex working conditions, and inability to rotate freely.

[0004] The objective of this utility model is mainly achieved through the following technical solutions: This utility model provides a rotating support device, comprising: Support base; A support bearing located above and fixedly connected to the support base; A locking pin passing through the inner ring of the supporting bearing; A bearing lock nut passes through the support base, and the bearing lock nut is locked to the first end of the locking pin; The bearing cap is located above the support base; A support platform is located above the bearing cover, and the locking pin passes through the bearing cover and abuts against the support platform; The bearing cap presses against the outer ring of the supporting bearing to fix the supporting bearing between the supporting base and the bearing cap; The second end of the locking pin passes through the bearing cover and is fixedly connected to the support platform. The support platform and the bearing cover have a preset distance. The outer ring of the bearing and the inner ring of the bearing are rotatably arranged relative to each other.

[0005] Optionally, the support base is provided with an inner hole, and the locking pin passes through the inner hole of the support base; The support base has a positioning groove on the side near the support bearing, and the support bearing is installed in the positioning groove; The support base has multiple threaded holes on the side near the support bearing.

[0006] Optionally, the diameter of the inner hole of the base is larger than the outer diameter of the bearing lock nut.

[0007] Optionally, the bearing cap is provided with a through hole, which corresponds to the threaded hole of the support base. The cap screw passes through the through hole into the threaded hole to fix the bearing cap to the support base.

[0008] Optionally, the bearing cap has an inner hole, the diameter of which is smaller than the outer diameter of the bearing outer ring and larger than the outer diameter of the bearing inner ring.

[0009] Optionally, the bearing cap is provided with an annular boss on the side near the outer ring of the bearing, and the outer ring of the bearing is located inside the annular boss.

[0010] Optionally, the locking pin includes an external thread section with a diameter increasing sequentially, an installation section, and a clamping section; Wherein, the diameter of the external thread section is smaller than the diameter of the inner hole of the base, and the external thread section matches the bearing lock nut; The bearing inner ring is fitted onto the mounting section, the diameter of the mounting section is less than or equal to the inner diameter of the bearing inner ring, and the length of the mounting section is less than or equal to the depth of the bearing inner ring supporting the bearing. The diameter of the clamping section is less than or equal to the outer diameter of the bearing inner ring, and greater than the inner diameter of the bearing inner ring.

[0011] Optionally, the bearing lock nut is provided with an annular lock nut boss on the side near the supporting bearing. The outer diameter of the lock nut boss is less than or equal to the outer diameter of the bearing inner ring, and the inner diameter of the lock nut boss is greater than or equal to the inner diameter of the bearing inner ring. The internal threaded hole of the bearing lock nut mates with the external threaded section of the locking pin.

[0012] Optionally, the support platform is provided with a support platform through hole, and the support platform is connected to the locking column by a locking screw passing through the support platform through the support platform through hole.

[0013] Optionally, the support platform is provided with an annular boss on the side near the locking post, and the end of the locking post connected to the support platform is located inside the annular boss.

[0014] Compared with the prior art, the present invention can achieve the following beneficial effects: The rotating support device of this utility model has a simple structure, and its positioning accuracy depends only on three components: the support base, the support bearing, and the support platform. The dimensional chain is simple, and the high positioning accuracy of the support device can be ensured by controlling the accuracy of the above three components. Furthermore, the rotation of this rotating device is achieved by the relative rotation of the inner and outer rings of the support bearing, which allows for free rotation and can meet the rotation requirements under conditions such as high temperature and vacuum.

[0015] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0016] Figure 1 This is an exploded view of the rotating support device of this utility model; Figure 2 This is an overall assembly diagram of the rotary support device of this utility model; Figure 3 Cross-sectional view of the support base; Figure 4 Schematic diagram of the supporting bearing; Figure 5 Schematic diagram of bearing lock nut; Figure 6 This is a schematic diagram of the locking pin; Figure 7 This is a cross-sectional view of the bearing cap; Figure 8 This is a cross-sectional view of the support platform.

[0017] Figure label: 1: Support base; 1-1: Positioning groove; 1-2: Inner hole of base; 1-3: Threaded hole; 2: Support bearing; 2-1: Outer ring of bearing; 2-2: Inner ring of bearing; 3: Bearing lock nut; 3-1: Lock nut boss; 3-2: Internal threaded hole; 4: Locking pin; 4-1: External thread section; 4-2: Mounting section; 4-3: Clamping section; 5: Bearing cover; 5-1: Through hole; 5-2: Inner hole of cover; 6: Support platform; 6-1: Annular boss; 7: Cover screw; 8: Locking screw. Detailed Implementation

[0018] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0019] This utility model provides a rotating support device, such as Figure 1 , Figure 2 and Figure 4 As shown, it includes: Support base 1; A support bearing 2 is located above the support base 1 and is fixedly connected to the support base 1; Locking pin 4 passes through the inner ring 2-2 of the supporting bearing 2; The bearing lock nut 3 passes through the support base 1, and the bearing lock nut 3 is locked to the first end of the locking pin 4; The bearing cap 5 is located above the support base 1; The support platform 6 is located above the bearing cover 5, and the locking pin 4 passes through the bearing cover 5 and abuts against the support platform 6; The bearing cap 5 presses against the outer ring 2-1 of the supporting bearing 2, thus fixing the supporting bearing 2 between the supporting base 1 and the bearing cap 5. The second end of the locking pin 4 passes through the bearing cover 5 and is fixedly connected to the support platform 6. The support platform 6 and the bearing cover 5 have a preset distance; the outer ring 2-1 and the inner ring 2-2 of the bearing are rotatably arranged relative to each other.

[0020] During implementation, the bearing lock nut 3, locking pin 4, bearing inner ring 2-2 and support platform 6 form a rotatable whole, while the support base 1, bearing outer ring 2-1 and bearing cap 5 form a non-rotatable whole, thereby enabling the rotation of the support on the support platform 6.

[0021] Compared with the prior art, the rotatable support device provided in this embodiment fixes the support bearing 2 and the support base 1 together through the bearing cap 5, ensuring that the position of the support bearing 2 is fixed; the locking pin 4 is fixed together with the inner ring 2-2 of the support bearing 2 through the bearing lock nut 3, and the size of each part ensures that the presence of the locking pin 4 does not affect the relative rotation of the inner ring 2-2 and the outer ring 2-1 of the support bearing 2, and the support platform 6 is connected together with the locking pin 4; since the locking pin 4 is fixedly connected to the inner ring 2-2 of the support bearing 2, the free rotation of the support platform is ultimately guaranteed. The structure of this rotatable support device is simple, and the positioning accuracy depends only on the three components: the support base 1, the support bearing 2, and the support platform 6. The dimensional chain is simple, and the high positioning accuracy of the support device can be ensured by controlling the accuracy of the above three components; moreover, the rotation of this rotatable device is achieved by the relative rotation of the inner ring 2-2 and the outer ring 2-1 of the support bearing 2, which can rotate freely and meet the rotation requirements under high temperature, vacuum and other conditions.

[0022] In one implementation, such as Figure 3 As shown, the support base 1 is provided with a base inner hole 1-2, and the locking pin 4 passes through the base inner hole 1-2 through the support base 1; The support base 1 has a positioning groove 1-1 on the side near the support bearing 2, and the support bearing 2 is installed in the positioning groove 1-1; the size of the positioning groove 1-1 matches the outer diameter of the bearing outer ring 2-1, ensuring that the support bearing 2 can be installed easily.

[0023] The support base 1 has multiple threaded holes 1-3 on the side near the support bearing 2.

[0024] For example, the support base 1 has four threaded holes 1-3.

[0025] In one embodiment, the diameter of the inner hole 1-2 of the base is larger than the outer diameter of the bearing lock nut 3, ensuring that the bearing lock nut 3 can pass through the inner hole 1-2 of the base as a whole. This ensures that the bearing lock nut 3 is located inside the inner hole 1-2 of the base after being connected to the locking pin 4, without affecting the stability of the support base 1 on the ground.

[0026] In one implementation, such as Figure 7 As shown, the bearing cap 5 is provided with a through hole 5-1, which corresponds to the threaded hole 1-3 of the support base 1. The cap screw 7 passes through the through hole 5-1 into the threaded hole 1-3 to fix the bearing cap 5 to the support base 1.

[0027] For example, the bearing cap 5 is provided with a cap inner hole 5-2, the diameter of which is smaller than the outer diameter of the bearing outer ring 2-1 and larger than the outer diameter of the bearing inner ring 2-2. This ensures that the edge of the cap inner hole 5-2 presses against the bearing outer ring 2-1, thereby fixing the bearing outer ring 2-1 to the support base 1.

[0028] To improve the clamping stability of the bearing cap 5 on the bearing outer ring 2-1, an annular boss is provided on the side of the bearing cap 5 near the bearing outer ring 2-1, and the bearing outer ring 2-1 is located inside the annular boss. That is, the inner diameter of the annular boss is greater than or equal to the outer diameter of the bearing outer ring 2-1.

[0029] In one implementation, such as Figure 6 As shown, the locking pin 4 includes an external thread section 4-1, an installation section 4-2, and a pressing section 4-3 with the diameter increasing sequentially; the external thread section 4-1 is used to connect with the bearing lock nut (3) by thread, the installation section 4-2 is used to install the bearing inner ring 2-2, and the pressing section 4-3 is used to press the bearing inner ring 2-2.

[0030] Wherein, the diameter of the external thread section 4-1 is smaller than the diameter of the inner hole 1-2 of the base, and the external thread section 4-1 matches the bearing lock nut 3, which can ensure that the external thread section 4-1 penetrates into the inner hole 1-2 of the base and is threadedly connected to the bearing lock nut 3.

[0031] The bearing inner ring 2-2 is fitted onto the mounting section 4-2. The diameter of the mounting section 4-2 is less than or equal to the inner diameter of the bearing inner ring 2-2, and the length of the mounting section 4-2 is less than the depth of the bearing inner ring 2-2 supporting the bearing 2.

[0032] The diameter of the clamping section 4-3 is less than or equal to the outer diameter of the bearing inner ring 2-2, and greater than the inner diameter of the bearing inner ring 2-2, thereby ensuring that the clamping section 4-3 can press on the bearing inner ring 2-2, while not affecting the relative rotation between the inner and outer rings on the supporting bearing 2.

[0033] In one implementation, such as Figure 5 As shown, the bearing lock nut 3 has an annular lock nut boss 3-1 on the side near the supporting bearing 2. The outer diameter of the lock nut boss 3-1 is less than or equal to the outer diameter of the bearing inner ring 2-2, and the inner diameter of the lock nut boss 3-1 is greater than or equal to the inner diameter of the bearing inner ring 2-2. This ensures that the lock nut boss does not extend beyond the bearing inner ring 2-2 in the radial direction. After installation, the lock nut boss 3-1 abuts against the bearing inner ring 2-2. The lock nut boss 3-1 and the clamping section 4-3 clamp the bearing inner ring 2-2 from the upper and lower ends, respectively, so that the bearing lock nut 3 and the locking pin 4 can rotate together with the bearing inner ring 2-2.

[0034] The internal threaded hole 3-2 of the bearing lock nut 3 mates with the external threaded section 4-1 of the locking pin 4.

[0035] In one implementation, such as Figure 1 and Figure 8 As shown, the support platform 6 is provided with a support platform through hole, and the support platform 6 is connected to the locking post 4 by a locking screw 8 passing through the support platform through hole.

[0036] For example, the support platform 6 is provided with an annular boss 6-1 on the side near the locking post 4, and the end of the locking post 4 connected to the support platform 6 is located inside the annular boss 6-1, that is, the diameter of the annular boss 6-1 is greater than or equal to the diameter of the pressing section 4-3 on the locking post 4.

[0037] For example, the axial height of the annular boss 6-1 should ensure that after the support platform 6 and the locking post 4 are installed together, the support platform 6 and the bearing cover 5 will not come into contact.

[0038] It should be noted that when using this rotatable support device as a support for testing, high-precision support bearings should be selected, and the support platform, locking column, and support base should all have high machining precision.

[0039] The assembly method of the rotary support device of this utility model is as follows: First, the support bearing 2 is installed in the positioning groove 1-1 of the support base 1. After the bearing cover 5 is installed, the bearing cover 5 is connected to the support base 1 by the cover screw 7, thereby locking the support bearing 2. The locking pin 4 is passed through the inner hole of the support bearing 5, and the bearing lock nut 3 is screwed into the lower part of the locking pin 4. After the bearing lock nut 3 is tightened, it directly contacts the inner ring 2-2 of the bearing, thereby locking the locking pin 4 and the inner ring 2-2 of the bearing together. The support platform 6 is fitted into the upper end of the locking pin 4, and the support platform 6 and the locking pin 4 are fastened together by the locking screw 8.

[0040] When using this rotatable support device, place the object to be supported on the support platform 6. When rotation is required, simply rotate the support platform 6 to achieve the rotation of the supported object.

[0041] All structures of the support device can be made of materials such as aluminum alloy and stainless steel as required, but the support base 1 should be made of relatively heavy metals such as steel and copper to ensure that the support base 1 has high support rigidity; the support bearing 2 can be made of steel, such as ball bearing or roller bearing.

[0042] It should be noted that when using this support device as a support for testing, attention should be paid to selecting high-precision support bearings 2, and the three parts of support platform 6, locking column 4, and support base 1 should all have high machining precision.

[0043] This utility model aims to provide a simple rotatable support structure that can be used in complex working conditions. The support bearing 2 is connected to the support base 1 by the bearing cap 5 and the cap screw 7, ensuring that the position of the support bearing 2 is fixed. The locking pin 4 is connected to the inner ring 2-2 of the support bearing 2 by the bearing lock nut 3, and the size of each part ensures that the presence of the locking pin 4 does not affect the relative rotation between the inner ring 2-2 and the outer ring 2-1 of the support bearing 2. The support platform 6 is connected to the locking pin 4 by the locking screw 8. Since the locking pin 4 is connected to the inner ring 2-2 of the bearing, the free rotation of the support platform 6 is ultimately guaranteed.

[0044] Meanwhile, while ensuring high machining accuracy of each part of the support device, the support device can be used as a testing tool in some situations where the support needs to be able to rotate freely, such as end face adjustment testing, parallelism testing, etc.

[0045] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A rotating support device, characterized in that, include: Support base (1); A support bearing (2) is located above the support base (1) and is fixedly connected to the support base (1). Locking pin (4) passing through the inner ring (2-2) of the support bearing (2); The bearing lock nut (3) passes through the support base (1), and the bearing lock nut (3) is locked to the first end of the locking pin (4); The bearing cap (5) is located above the support base (1); The support platform (6) is located above the bearing cover (5), and the locking pin (4) passes through the bearing cover (5) and abuts against the support platform (6); The bearing cap (5) presses the outer ring (2-1) of the support bearing (2) to fix the support bearing (2) between the support base (1) and the bearing cap (5). The second end of the locking pin (4) passes through the bearing cover (5) and is fixedly connected to the support platform (6). The support platform (6) and the bearing cover (5) have a preset distance. The outer ring (2-1) and the inner ring (2-2) of the bearing are rotatably arranged relative to each other.

2. The rotary support device according to claim 1, characterized in that, The support base (1) is provided with a base inner hole (1-2), and the locking pin (4) passes through the base inner hole (1-2) through the support base (1). The support base (1) has a positioning groove (1-1) on the side near the support bearing (2), and the support bearing (2) is installed in the positioning groove (1-1); The support base (1) has multiple threaded holes (1-3) on the side near the support bearing (2).

3. The rotary support device according to claim 2, characterized in that, The diameter of the inner hole (1-2) of the base is greater than the outer diameter of the bearing lock nut (3).

4. The rotary support device according to claim 2, characterized in that, The bearing cap (5) is provided with a through hole (5-1), which corresponds to the threaded hole (1-3) of the support base (1). The cap screw (7) passes through the through hole (5-1) into the threaded hole (1-3) to fix the bearing cap (5) to the support base (1).

5. The rotary support device according to claim 4, characterized in that, The bearing cap (5) is provided with a cap inner hole (5-2). The diameter of the cap inner hole (5-2) is smaller than the outer diameter of the bearing outer ring (2-1) and larger than the outer diameter of the bearing inner ring (2-2).

6. The rotary support device according to claim 4, characterized in that, The bearing cap (5) has an annular boss on the side near the bearing outer ring (2-1), and the bearing outer ring (2-1) is located inside the annular boss.

7. The rotary support device according to claim 2, characterized in that, The locking pin (4) includes an external thread section (4-1) with an increasing diameter, an installation section (4-2), and a clamping section (4-3). Wherein, the diameter of the external thread section (4-1) is smaller than the diameter of the inner hole (1-2) of the base, and the external thread section (4-1) matches the bearing lock nut (3); The bearing inner ring (2-2) is fitted onto the mounting section (4-2), the diameter of the mounting section (4-2) is less than or equal to the inner diameter of the bearing inner ring (2-2), and the length of the mounting section (4-2) is less than the depth of the bearing inner ring (2-2) of the supporting bearing (2). The diameter of the clamping section (4-3) is less than or equal to the outer diameter of the bearing inner ring (2-2), and greater than the inner diameter of the bearing inner ring (2-2).

8. The rotary support device according to claim 7, characterized in that, The bearing lock nut (3) is provided with an annular lock nut boss (3-1) on the side near the support bearing (2). The outer diameter of the lock nut boss (3-1) is less than or equal to the outer diameter of the bearing inner ring (2-2), and the inner diameter of the lock nut boss (3-1) is greater than or equal to the inner diameter of the bearing inner ring (2-2). The internal threaded hole (3-2) of the bearing lock nut (3) is engaged with the external threaded section (4-1) of the locking pin (4).

9. The rotary support device according to claim 1, characterized in that, The support platform (6) is provided with a support platform through hole, and the support platform (6) is connected to the locking column (4) by a locking screw (8) passing through the support platform through hole.

10. The rotary support device according to claim 9, characterized in that, The support platform (6) has an annular boss (6-1) on the side near the locking post (4), and the end of the locking post (4) connected to the support platform (6) is located inside the annular boss (6-1).

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