Novel planetary rotary table

Abstract

The novel planetary rotary table comprises a bearing seat, a deep groove ball bearing is arranged in the bearing seat, a connecting shaft is rotationally arranged in the deep groove ball bearing, a first sealing ring is arranged at the position, making contact with the interior of the bearing seat, of the lower portion of the connecting shaft, and the lower portion of the connecting shaft penetrates through the bearing seat. The outer portion of the upper portion of the bearing seat is connected with a protective cover through a second sealing ring, the upper portion of the connecting shaft penetrates through the bearing seat and extends into the protective cover, a third sealing ring is arranged at the position, making contact with the interior of the protective cover, of the upper portion of the connecting shaft, and a connecting sleeve is arranged on the upper portion of the interior of the protective cover. The lower portion of the connecting sleeve is connected with the upper portion of the connecting shaft, the connecting sleeve is sleeved with a rubber pipe, a protection plate is arranged below the rubber pipe, and the bottom end of the protection plate is connected with the upper portion of the protection cover. The sealing performance of the upper portion of the device is improved through triple sealing arrangement of the third sealing ring, the rubber pipe and the protection plate.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary turntables, in particular to a novel planetary turntable. Background Art

[0002] Sandblasting is the process of using the impact of high-speed sand flow to clean and roughen the surface of the substrate. During the sandblasting process, a planetary turntable is required to adjust the direction of the sandblasting device to complete the required sandblasting process.

[0003] Most of the existing planetary turntables have a single-layer sealing structure set on the inner side above the protective cover. During use, since the sandblasting and shot blasting environment contains a large amount of dust, only a single-layer sealing structure is set above the planetary turntable. Dust can easily enter the inside of the protective cover through the gap and adhere to the internal components of the planetary turntable, causing the internal components of the planetary turntable to be disturbed by dust when rotating, affecting the stability of use and service life.

[0004] Therefore, a new type of planetary turntable is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a new type of planetary turntable, including a bearing seat, a deep groove ball bearing is arranged inside the bearing seat, a connecting shaft is rotatably arranged inside the deep groove ball bearing, a sealing ring 1 is arranged at the contact point between the lower part of the connecting shaft and the inner part of the bearing seat, the lower part of the connecting shaft passes through the bearing seat and extends out of the lower part of the bearing seat to be connected to the pulley, the upper part of the bearing seat is connected to the protective cover through a sealing ring 2, the upper part of the connecting shaft passes through the bearing seat and extends to the inside of the protective cover, a sealing ring 3 is arranged at the contact point between the upper part of the connecting shaft and the inner part of the protective cover, a connecting sleeve is arranged above the inner part of the protective cover, the lower part of the connecting sleeve is connected to the upper part of the connecting shaft, a rubber hose is sleeved on the outer part of the connecting sleeve, a protective plate is arranged below the rubber hose, and the bottom end of the protective plate is connected to the upper part of the protective cover.

[0006] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0007] The utility model provides a sealing ring three at the contact point between the top of the connecting shaft and the inside of the protective cover, and a rubber hose is sleeved on the outside of the connecting sleeve, and a protective plate is provided below the rubber hose. Since dust falls from above, the protective plate can block the dust. The triple sealing arrangement of the sealing ring three, the rubber hose and the protective plate increases the sealing performance of the top of the device, and the top of the bearing seat is connected to the protective cover through the sealing ring two. The sealing ring three is provided at the contact point between the top of the connecting shaft and the inside of the protective cover. While ensuring dust prevention on the top, dust prevention is also provided on the sides and the bottom, providing all-round protection. Compared with the traditional method of only providing a single-layer seal on the top of the protective cover, the sealing effect is improved, and dust can be effectively prevented from entering the inside of the bearing seat to cause abnormal rotation or wear and damage of the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] The reference numerals and names in the figures are as follows:

[0010] 1. Connecting shaft; 2. Pulley; 3. Circlip; 4. Bearing seat; 5. Sealing ring 1; 6. Deep groove ball bearing; 7. Protective cover; 8. Sealing ring 2; 9. Elastic circlip for hole; 10. Elastic pin; 11. Protective plate; 12. Hose; 13. Sealing ring 3; 14. Connecting sleeve. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] As attached Figure 1 As shown, a new planetary turntable provided by the utility model comprises a bearing seat 4, a deep groove ball bearing 6 is arranged inside the bearing seat 4, a connecting shaft 1 is rotatably arranged inside the deep groove ball bearing 6, a sealing ring 5 is arranged at the contact point between the lower part of the connecting shaft 1 and the inner part of the bearing seat 4, the lower part of the connecting shaft 1 passes through the bearing seat 4, and extends out from the lower part of the bearing seat 4 to be connected with the pulley 2, the lower part of the connecting shaft 1 passes through the pulley 2, and a retaining ring 3 is arranged on the outer part extending to the lower part of the pulley 2, the upper part of the bearing seat 4 is connected to the protective cover 7 through a sealing ring 2 8, the upper part of the connecting shaft 1 passes through the bearing seat 4, and extends to the inner part of the protective cover 7, a sealing ring 3 13 is arranged at the contact point between the upper part of the connecting shaft 1 and the inner part of the protective cover 7, a connecting sleeve 14 is arranged on the upper part of the protective cover 7, the lower part of the connecting sleeve 14 is connected to the upper part of the connecting shaft 1, a rubber hose 12 is sleeved on the outer part of the connecting sleeve 14, a protective plate 11 is arranged below the rubber hose 12, and the bottom end of the protective plate 11 is connected to the upper part of the protective cover 7.

[0013] Specifically, a hole elastic retaining ring 9 is sleeved on the outside of the connecting shaft 1 above the deep groove ball bearing 6 .

[0014] Specifically, elastic pin holes are respectively provided at corresponding positions above the protective cover 7 and below the connecting sleeve 14 , and elastic pins 10 are inserted into the elastic pin holes provided on the protective cover 7 and the connecting sleeve 14 .

[0015] Working principle: During operation, the connecting shaft 1 is driven to rotate by the rotation of the pulley 2, and the protective cover 7 and the connecting sleeve 14 are fixed together by the spring pin 10. The rotation of the connecting shaft 1 can drive the protective cover 7 and the connecting sleeve 14 to rotate together. When dust falls from top to bottom, a sealing ring 3 13 is provided at the contact point between the top of the connecting shaft 1 and the inside of the protective cover 7, and a hose 12 is sleeved on the outside of the connecting sleeve 14, and a protective plate 11 is provided under the hose 12. The protective plate 11 can block dust. The triple sealing setting of the sealing ring 3 13, the hose 12, and the protective plate 11 increases the sealing performance of the top of the device, and the top of the bearing seat 4 is connected to the protective cover 7 through the sealing ring 2 8. The sealing ring 3 13 is provided at the contact point between the top of the connecting shaft 1 and the inside of the protective cover 7. While ensuring dust prevention on the top, dust prevention is provided on the sides and the bottom, and all-round protection is provided. Compared with the traditional method of only providing a single-layer seal on the top of the protective cover, the sealing effect is improved, and dust can be effectively prevented from entering the inside of the bearing seat to cause abnormal rotation or wear and damage of the connecting shaft.

[0016] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A novel planetary turntable, comprising a bearing seat (4), characterized in that: A deep groove ball bearing (6) is arranged inside the bearing seat (4), a connecting shaft (1) is rotatably arranged inside the deep groove ball bearing (6), a sealing ring (5) is arranged at the bottom of the connecting shaft (1) where it contacts the inside of the bearing seat (4), the bottom of the connecting shaft (1) passes through the bearing seat (4) and extends out from the bottom of the bearing seat (4) to be connected to the pulley (2), the top of the bearing seat (4) is connected to the protective cover (7) through the sealing ring (8), the top of the connecting shaft (1) passes through the bearing The seat (4) extends to the inside of the protective cover (7); a sealing ring (13) is provided at the contact point between the upper part of the connecting shaft (1) and the inner part of the protective cover (7); a connecting sleeve (14) is provided at the upper part of the inner part of the protective cover (7); the lower part of the connecting sleeve (14) is connected to the upper part of the connecting shaft (1); a rubber hose (12) is provided on the outer part of the connecting sleeve (14); a protective plate (11) is provided below the rubber hose (12); the bottom end of the protective plate (11) is connected to the upper part of the protective cover (7).

2. A novel planetary turntable according to claim 1, characterized in that: The connecting shaft (1) passes through the belt pulley (2) below and extends to the outside of the belt pulley (2) below which a retaining ring (3) is arranged.

3. A novel planetary turntable according to claim 1, characterized in that: The connecting shaft (1) above the deep groove ball bearing (6) is externally sleeved with a hole elastic retaining ring (9).

4. A novel planetary turntable according to claim 1, characterized in that: Elastic pin holes are respectively provided at corresponding positions above the protective cover (7) and below the connecting sleeve (14), and elastic pins (10) are inserted into the elastic pin holes provided on the protective cover (7) and the connecting sleeve (14).

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