Encoder mounting structure

Abstract

The utility model provides an encoder installation structure, comprising an installation box, an encoder and a bearing seat, the top of the installation box is provided with a box cover, the encoder and the bearing seat are both arranged in the installation box, the encoder and the bearing seat are coaxially arranged, the encoder is connected with a to-be-detected shaft penetrating through the side wall of the installation box, and the to-be-detected shaft is connected with the bearing seat. The bearing seat is in running fit with a to-be-detected shaft, a sealing cushion is arranged between the box cover and the mounting box, the mounting box is connected with an oil seal assembly arranged on the periphery of the to-be-detected shaft in a sleeving mode, and the oil seal assembly penetrates through the side wall of the mounting box and is used for sealing a gap between the mounting box and the to-be-detected shaft. According to the encoder installation structure provided by the utility model, effective sealing between the box cover and the installation box is ensured by using the sealing soft cushion, sealing between the installation box and the shaft to be detected is realized by using the oil seal assembly, a dry environment in the box body is ensured, external water vapor is prevented from entering the box body, and the service life of each component in the box body is prolonged; and the maintenance frequency of the equipment is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of encoder installation structures, and more specifically, relates to an encoder installation structure. Background Art

[0002] An encoder is a device for precisely measuring the position, angle, and length of a moving device, and is widely used in fields such as textiles, papermaking, water conservancy, robotics, lifting, precision machine tools, and iron and steel metallurgy. The stability and reliability of the encoder directly affect the quality of the product and the safety of the equipment and personnel.

[0003] There are certain drawbacks in the design of existing encoder protection boxes. Water vapor is extremely easy to penetrate from the mating surface of the protection box (that is, the position where the shaft to be detected penetrates into the protection box). Since the bearings of the encoder often have problems such as poor sealing due to wear and other reasons, water vapor is extremely easy to penetrate into this position, resulting in rust and jamming of the bearings, and at the same time, it is also easy to cause the internal components of the encoder to be damaged by moisture. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an encoder installation structure, which can effectively improve the sealing performance of the structure, avoid the influence caused by water vapor entering the equipment interior, and extend the overall life of the structure.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide an encoder installation structure, including an installation box, an encoder, and a bearing seat. A box cover is provided on the top of the installation box. The encoder and the bearing seat are both arranged inside the installation box and are coaxially arranged. The encoder is connected to a shaft to be detected passing through the side wall of the installation box, and the bearing seat is rotationally matched with the shaft to be detected.

[0006] Among them, a sealing soft pad is provided between the box cover and the installation box. An oil seal assembly sleeving the outer periphery of the shaft to be detected is connected to the installation box. The oil seal assembly passes through the side wall of the installation box and is used to seal the gap between the installation box and the shaft to be detected.

[0007] In a possible implementation manner, the oil seal assembly includes an oil seal sleeve and an oil seal body. The oil seal body is sleeved on the outer periphery of the shaft to be detected, and the oil seal sleeve is sleeved on the outer periphery of the oil seal body. The oil seal sleeve is connected to the installation box.

[0008] In some embodiments, the outer end of the oil seal sleeve has a connection disk connected to the outer side wall of the installation box, and the inner end of the oil seal sleeve has a limiting end plate extending towards the axial center side. The limiting end plate is used to limit the axial position of the oil seal body.

[0009] In a possible implementation, an installation seat is provided inside the installation box. The installation seat is arranged on one side close to the shaft to be detected. The bearing seat is arranged on the installation seat. An installation vertical plate extending upward is provided on the installation seat. The installation vertical plate is located on the side of the bearing seat away from the oil seal assembly. The connecting shaft of the encoder penetrates through the installation vertical plate and is connected to the shaft to be detected.

[0010] In some embodiments, an installation hole is penetrated through the installation vertical plate. An insulating installation sleeve is provided in the installation hole. The insulating installation sleeve is sleeved on the outer periphery of the connecting shaft of the encoder. An insulating partition plate extending outward and connected to the installation vertical plate is provided at one end of the insulating installation sleeve close to the encoder.

[0011] In a possible implementation, the connector of the encoder is connected to the shaft to be detected through an elastic coupling. There are two bearing seats. The two bearing seats are respectively in rotational cooperation with the shaft to be detected and are arranged at intervals along the axial direction of the shaft to be detected.

[0012] In a possible implementation, the installation box is provided with a gland for the cable to pass through. The gland penetrates through the side wall of the installation box and is located at the lower part of the installation box.

[0013] In a possible implementation, connection strip seats are respectively provided on both sides of the installation box. The box cover is connected to the connection strip seats through a connecting member extending in the up and down direction. A sealing soft pad is located between the box cover and the connection strip seats.

[0014] In some embodiments, a first connection groove opening outward is provided on the box cover. A second connection groove corresponding to the first connection groove one by one is provided on the sealing soft pad. A third connection groove corresponding to the second connection groove one by one is provided on the connection strip seat. The connecting member sequentially penetrates through the first connection groove, the second connection groove and the third connection groove from top to bottom.

[0015] In a possible implementation, the bottom plate of the installation box protrudes outward from the side wall of the installation box. Connection long holes are provided on the bottom plate of the installation box. There are four connection long holes and they are respectively located at the four corners of the bottom plate of the installation box.

[0016] The solution shown in the embodiments of the present application, compared with the prior art, the encoder installation structure provided by the embodiments of the present application uses a sealing soft pad to ensure effective sealing between the box cover and the installation box, and uses an oil seal assembly to achieve sealing between the installation box and the shaft to be detected, which is convenient for ensuring a dry environment inside the box body, preventing external water vapor from entering, and thus helps to extend the service life of each component inside the box body and reduces the maintenance frequency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the main view partial sectional structure of the encoder mounting structure provided by the embodiment of the present invention;

[0019] Figure 2 For the embodiment of the present invention Figure 1 It is a schematic diagram of the partial enlarged structure of I in the embodiment;

[0020] Figure 3 For the embodiment of the present invention Figure 1 It is a schematic diagram of the partial enlarged structure of II in the embodiment;

[0021] Figure 4 For the embodiment of the present invention Figure 1 It is a schematic diagram of the sectional structure of A-A in the embodiment;

[0022] Figure 5 For the embodiment of the present invention Figure 1 It is a schematic diagram of the top view structure of the mounting box in the embodiment;

[0023] Figure 6 For the embodiment of the present invention Figure 1 It is a schematic diagram of the top view structure of the box cover in the embodiment;

[0024] Figure 7 It is a schematic diagram of the top view structure of the sealing soft pad in Embodiment 1 of the present invention.

[0025] Among them, the reference numerals in the figure are as follows:

[0026] 1. Mounting box; 11. Mounting seat; 12. Mounting vertical plate; 13. Insulating mounting sleeve; 14. Insulating partition plate; 141. Flat pad; 15. Gland connector; 16. Connection strip seat; 17. Connector; 18. Third connection groove; 19. Connection long hole; 2. Encoder; 3. Bearing seat; 4. Box cover; 41. First connection groove; 6. Sealing soft pad; 61. Second connection groove; 7. Oil seal assembly; 71. Oil seal sleeve; 72. Oil seal body; 73. Connection disc; 74. Limit end plate; 8. Elastic coupling; 9. Shaft to be detected. Specific embodiments

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] It should be noted that when an element is referred to as "disposed on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or several of such features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise specifically defined.

[0029] Please refer to Figures 1 to 7 , and now the encoder mounting structure provided by the present utility model will be described. The encoder mounting structure includes a mounting box 1, an encoder 2, and a bearing seat 3. A box cover 4 is provided on the top of the mounting box 1. The encoder 2 and the bearing seat 3 are both disposed in the mounting box 1 and the encoder 2 and the bearing seat 3 are coaxially arranged. The encoder 2 is connected to a to-be-detected shaft 9 passing through the side wall of the mounting box 1, and the bearing seat 3 is rotationally matched with the to-be-detected shaft 9;

[0030] Among them, a sealing soft pad 6 is provided between the box cover 4 and the mounting box 1. An oil seal assembly 7 sleeving the outer periphery of the to-be-detected shaft 9 is connected to the mounting box 1. The oil seal assembly 7 passes through the side wall of the mounting box 1 and is used to seal the gap between the mounting box 1 and the to-be-detected shaft 9.

[0031] Compared with the prior art, the encoder mounting structure provided in this embodiment uses the sealing soft pad 6 to ensure effective sealing between the box cover 4 and the mounting box 1, and uses the oil seal assembly 7 to achieve sealing between the mounting box 1 and the to-be-detected shaft 9, which is convenient for ensuring a dry environment inside the box body, avoiding external water vapor from entering, and thus helping to extend the service life of each component inside the box body and reducing the maintenance frequency of the equipment.

[0032] In this embodiment, the sealing soft pad 6 and the oil seal assembly 7 are provided to prevent water vapor from entering the box body, thereby avoiding the encoder 2 from being eroded by water vapor and dust, prolonging the service life of the encoder 2, and facilitating the inspection and maintenance of the equipment.

[0033] In a possible implementation manner, please refer to Figures 1 to 7 as well. The oil seal assembly 7 includes an oil seal sleeve 71 and an oil seal body 72. The oil seal body 72 is sleeved on the outer periphery of the shaft to be detected 9, the oil seal sleeve 71 is sleeved on the outer periphery of the oil seal body 72, and the oil seal sleeve 71 is connected to the mounting box 1.

[0034] In this embodiment, the oil seal body 72 and the oil seal sleeve 71 are combined. The oil seal sleeve 71 is connected to the mounting box 1, and the oil seal body 72 is sleeved on the outer periphery of the shaft to be detected. Specifically, two oil seal bodies 72 are provided in the oil seal sleeve 71, and the two oil seal bodies 72 are arranged at an axial interval with respect to the shaft to be detected 9.

[0035] In some embodiments, please refer to Figures 1 to 7 as well. The outer end of the oil seal sleeve 71 has a connection disk 73 connected to the outer side wall of the mounting box 1. The inner end of the oil seal sleeve 71 has a limiting end plate 74 extending toward the axial center side. The limiting end plate 74 is used to limit the axial position of the oil seal body 72. The connection disk 73 at the outer end of the oil seal sleeve 71 is in contact and cooperation with the outer side wall of the mounting box 1, and is connected by connecting members 17 such as bolts and screws.

[0036] Specifically, four connection holes are evenly distributed along the circumferential direction on the connection disk 73. The connecting members 17 such as bolts and screws pass through the connection holes to fix the oil seal sleeve 71 on the mounting box 1. Before inspecting or replacing the oil seal assembly 7, the oil seal body 72 can be conveniently taken out from the oil seal sleeve 71 by removing the above-mentioned connecting members 17.

[0037] On the basis of the above structure, the inner end of the oil seal sleeve 71 also has a limiting end plate 74. The limiting end plate 74 is in contact with the inner side end face of the oil seal body 72 (that is, the end face close to the encoder 2), which can effectively limit the axial position of the oil seal body 72.

[0038] In a possible implementation manner, please refer to Figures 1 to 7 as well. A mounting seat 11 is provided in the mounting box 1. The mounting seat 11 is arranged close to the shaft to be detected 9. The bearing seat 3 is arranged on the mounting seat 11. An upward-extending mounting vertical plate 12 is provided on the mounting seat 11. The mounting vertical plate 12 is located on the side of the bearing seat 3 away from the oil seal assembly 7. The connecting shaft of the encoder 2 passes through the mounting vertical plate 12 and is connected to the shaft to be detected 9.

[0039] In this embodiment, in order to make the height of the encoder 2 consistent with the height of the shaft 9 to be detected, a mounting seat 11 is further provided in the mounting box 1, and the encoder 2 is mounted by using the mounting vertical plate 12 on the mounting seat 11. The encoder 2 is located on the side of the mounting vertical plate 12 away from the shaft to be detected, and the encoder 2 is mounted on the mounting vertical plate 12 through a connecting member 17 such as a bolt or a screw.

[0040] In some embodiments, please refer to Figures 1 to 7 at the same time. A mounting hole is provided through the mounting vertical plate 12, and an insulating mounting sleeve 13 is provided in the mounting hole. The insulating mounting sleeve 13 is sleeved on the outer periphery of the connecting shaft of the encoder 2. One end of the insulating mounting sleeve 13 close to the encoder 2 is provided with an insulating partition plate 14 extending outwardly and connected to the mounting vertical plate 12.

[0041] Specifically, the sealing soft pad 6, the insulating mounting sleeve 13 and the insulating partition plate 14 are all components made of insulating materials and can be made of resin materials. The above structure realizes the insulation performance between the encoder 2 and the device with the shaft 9 to be detected, so that the encoder 2 and the shaft 9 to be detected of the device are insulated from each other and are not damaged by the shaft current.

[0042] On this basis, when the insulating partition plate 14 at the end of the insulating mounting sleeve 13 is connected to the mounting vertical plate 12, an insulating flat pad 141 needs to be provided to ensure the insulation performance between the components.

[0043] In a possible implementation manner, please refer to Figures 1 to 7 at the same time. The connector of the encoder 2 is connected to the shaft 9 to be detected through an elastic coupling 8. There are two bearing seats 3, and the two bearing seats 3 are respectively in rotational cooperation with the shaft 9 to be detected and are arranged at intervals along the axial direction of the shaft 9 to be detected.

[0044] In this embodiment, the elastic coupling 8 is an elastic coupling 8 with insulating characteristics, so that the encoder 2 and the device with the shaft 9 to be detected are insulated from each other and are not damaged by the shaft current. The shaft 9 to be detected is connected to the encoder 2 through the elastic coupling 8, which can eliminate the influence of external axial force and protect the encoder 2 from the impact of external axial force.

[0045] Furthermore, the bearing seat 3 is a spherical bearing with an outer spherical surface of a vertical seat, which can eliminate the external radial force and protect the encoder 2 from the impact of external radial force. Therefore, the above structure effectively reduces the impact of external radial force and axial force on the encoder 2 and helps to extend the service life of the encoder 2.

[0046] In a possible implementation manner, please refer to Figures 1 to 7 at the same time. The mounting box 1 is provided with a gland 15 for the cable to pass through. The gland 15 penetrates through the side wall of the mounting box 1 and is located at the lower part of the mounting box 1. The setting of the gland 15 can achieve the structural sealing of the wire outlet position on the mounting box 1 and prevent water vapor from entering the mounting box 1.

[0047] In a possible implementation, please also refer to Figures 1 to 7 , connecting bar seats 16 are respectively provided on both sides of the installation box 1, the box cover 4 is connected to the connecting bar seats 16 through a connecting member 17 extending in the up and down direction, and the sealing soft pad 6 is located between the box cover 4 and the connecting bar seats 16.

[0048] In this embodiment, the connecting bar seats 16 on both sides can form a plane for supporting the upper sealing soft pad 6, ensuring the reliable installation of the sealing soft pad 6 between the box cover 4 and the connecting bar seats 16, improving the sealing performance of the connection between the box cover 4 and the installation box 1, and the box cover 4 and the installation box 1 are connected through a connecting member 17 extending in the up and down direction. After connection, the sealing soft pad 6 is squeezed and deformed to form a good sealing effect.

[0049] In some embodiments, please also refer to Figures 1 to 7 , a first connection groove 41 with an opening facing outwards is provided on the box cover 4, a second connection groove 61 corresponding to the first connection groove 41 one by one is provided on the sealing soft pad 6, and a third connection groove 18 corresponding to the second connection groove 61 one by one is provided on the connecting bar seat 16, and the connecting member 17 sequentially penetrates through the first connection groove 41, the second connection groove 61, and the third connection groove 18 from top to bottom.

[0050] In this embodiment, there are multiple first connection grooves 41, second connection grooves 61, and third connection grooves 18, and they are arranged corresponding to each other up and down. All three are U-shaped grooves with openings facing outwards (that is, the openings face away from the axis of the installation box 1), which can quickly disassemble and assemble the connecting member 17, facilitating the inspection and maintenance of the internal components of the installation box 1.

[0051] In a possible implementation, please also refer to Figures 1 to 7 , the bottom plate of the installation box 1 protrudes outwards from the side wall of the installation box 1, and a connecting long hole 19 is provided on the bottom plate of the installation box 1. There are four connecting long holes 19 and they are respectively located at the four corners of the bottom plate of the installation box 1.

[0052] In this embodiment, the four connecting long holes 19 at the bottom of the installation box 1 can be connected to a platform or other plane through connecting members 17 such as bolts or screws. All four connecting holes are oblong holes, which are convenient for disassembly and assembly from the platform or plane, improving the convenience of installation and disassembly.

[0053] The above encoder installation structure uses the sealing soft pad 6 to ensure effective sealing between the box cover 4 and the installation box 1, and uses the oil seal assembly 7 to achieve sealing between the installation box 1 and the shaft to be detected 9, which is convenient for ensuring the dry environment inside the box body, avoiding the entry of external water vapor, and thus helps to extend the service life of each component inside the box body and reduce the maintenance frequency of the equipment. The insulating installation sleeve 13 sleeved on the outer circumference of the connecting shaft of the encoder 2 avoids the problem of the encoder 2 being damaged by the shaft current brought by the shaft to be detected 9, extends the service life of the encoder 2, is convenient for equipment inspection and maintenance. At the same time, the bearing seat 3 uses a spherical bearing with a vertical outer spherical surface, which can eliminate the external radial force and protect the encoder 2 from the impact of the external radial force, and has good performance.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The encoder installation structure is characterized by: The invention comprises an installation box (1), an encoder (2) and a bearing seat (3); a box cover (4) is provided on the top of the installation box (1); the encoder (2) and the bearing seat (3) are both arranged in the installation box (1); the encoder (2) and the bearing seat (3) are coaxially arranged; the encoder (2) is connected to a shaft to be detected (9) arranged on a side wall of the installation box (1); and the bearing seat (3) is rotatably matched with the shaft to be detected (9); A sealing cushion (6) is provided between the box cover (4) and the installation box (1); an oil seal assembly (7) sleeved on the outer periphery of the shaft to be detected (9) is connected to the installation box (1); the oil seal assembly (7) is arranged through the side wall of the installation box (1) and is used to seal the gap between the installation box (1) and the shaft to be detected (9).

2. The encoder installation structure according to claim 1, characterized in that: The oil seal assembly (7) comprises an oil seal sleeve (71) and an oil seal body (72); the oil seal body (72) is sleeved on the outer circumference of the shaft (9) to be detected; the oil seal sleeve (71) is sleeved on the outer circumference of the oil seal body (72); and the oil seal sleeve (71) is connected to the installation box (1).

3. The encoder installation structure according to claim 2, characterized in that: The outer end of the oil seal sleeve (71) has a connecting plate (73) connected to the outer side wall of the installation box (1), and the inner end of the oil seal sleeve (71) has a limiting end plate (74) extending toward the axial center side, and the limiting end plate (74) is used to limit the axial position of the oil seal body (72).

4. The encoder installation structure according to claim 1, characterized in that: A mounting seat (11) is provided in the mounting box (1), the mounting seat (11) is arranged close to a side of the shaft (9) to be detected, the bearing seat (3) is arranged on the mounting seat (11), an upwardly extending mounting vertical plate (12) is provided on the mounting seat (11), the mounting vertical plate (12) is located on a side of the bearing seat (3) away from the oil seal assembly (7), and a connecting shaft of the encoder (2) is arranged through the mounting vertical plate (12) and is connected to the shaft (9) to be detected.

5. The encoder installation structure according to claim 4, characterized in that: The mounting plate (12) is provided with a mounting hole, an insulating mounting sleeve (13) is provided in the mounting hole, the insulating mounting sleeve (13) is sleeved on the outer periphery of the connecting shaft of the encoder (2), and an insulating partition plate (14) is provided at one end of the insulating mounting sleeve (13) close to the encoder (2) and extending toward the outer periphery and connected to the mounting plate (12).

6. The encoder installation structure according to claim 1, characterized in that: The connector of the encoder (2) is connected to the shaft to be detected (9) via an elastic coupling (8), and two bearing seats (3) are provided. The two bearing seats (3) are respectively rotatably matched with the shaft to be detected (9) and are arranged at intervals along the axial direction of the shaft to be detected (9).

7. The encoder installation structure according to any one of claims 1 to 6, characterized in that: The installation box (1) is provided with a Gland connector (15) for allowing cables to pass through; the Gland connector (15) passes through a side wall of the installation box (1) and is located at the bottom of the installation box (1).

8. The encoder installation structure according to any one of claims 1 to 6, characterized in that: Connecting strip seats (16) are respectively provided on both sides of the installation box (1); the box cover (4) is connected to the connecting strip seats (16) via a connecting piece (17) extending in the up-down direction; and the sealing cushion (6) is located between the box cover (4) and the connecting strip seats (16).

9. The encoder installation structure according to claim 8, characterized in that: The box cover (4) is provided with a first connecting groove (41) opening outward, the sealing cushion (6) is provided with a second connecting groove (61) arranged in a one-to-one correspondence with the first connecting groove (41), the connecting bar seat (16) is provided with a third connecting groove (18) arranged in a one-to-one correspondence with the second connecting groove (61), and the connecting member (17) is arranged to pass through the first connecting groove (41), the second connecting groove (61) and the third connecting groove (18) in sequence from top to bottom.

10. The encoder installation structure according to any one of claims 1 to 6, characterized in that: The bottom plate of the installation box (1) is arranged to protrude outward from the side wall of the installation box (1), and the bottom plate of the installation box (1) is provided with a connecting long hole (19). Four connecting long holes (19) are provided and are respectively located at the four corners of the bottom plate of the installation box (1).

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