Encoder packaging structure

Abstract

The utility model discloses an encoder packaging structure, which comprises an encoder shell, a first bearing seat is concentrically arranged in the encoder shell, a first bearing is embedded in the middle of the first bearing seat, and one end of a concentric shaft support is inserted into the first bearing and is exposed outside the encoder shell; the other end of the concentric shaft support is inserted into a second bearing, the second bearing is arranged in the middle of a second bearing seat, the second bearing seat is arranged on a fixing support, and the first bearing seat and the second bearing seat are connected through a bolt in a locking mode. An elastic membrane is arranged between the second bearing seat and the fixing support, the elastic membrane is arranged on the second bearing seat, a limiting elastic piece is arranged on the elastic membrane, and a bearing face corresponding to the limiting elastic piece is arranged on the inner side of the fixing support. The elastic reset capability between the second bearing seat and the fixing support is achieved through the limiting elastic piece, the concentricity of the encoder is calibrated, the requirement for the assembling concentricity of the encoder is lowered, and the automatic adjusting effect is achieved after the encoder operates.

Description

Technical Field

[0001] The utility model belongs to the technical field of encoders and relates to an encoder packaging structure. Background Art

[0002] An encoder is a device that encodes and converts signals (such as bit streams) or data into a signal form that can be used for communication, transmission, and storage.

[0003] In actual working conditions, since the measured shaft is generally located on the inner side of the installation or inside the outer shell of the measured object, the measured shaft needs to be connected to the magnetic encoder through the through hole on the mounting plate or the outer shell, and there is often a problem of low coaxiality. Once the tolerance exceeds the threshold, it will affect the installation and use of the magnetic encoder.

[0004] For this reason, existing encoders have high requirements for concentricity, which increases the production and assembly costs of the encoders and affects the yield rate.

[0005] Therefore, it is necessary to improve the existing technology to overcome the problem that the encoder has high requirements for concentricity. Utility Model Content

[0006] The utility model aims to provide an encoder packaging structure to solve the problem of manipulator spacing interference and improve the installation efficiency of bottle caps.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] An encoder packaging structure comprises an encoder housing, wherein a first bearing seat is concentrically arranged in the encoder housing, a first bearing is centrally embedded in the first bearing seat, one end of a concentric shaft bracket is inserted into the first bearing and exposed to the outside of the encoder housing; the other end of the concentric shaft bracket is inserted into a second bearing, the second bearing is centrally arranged on the second bearing seat, the second bearing seat is arranged on a fixed bracket, and the first bearing seat and the second bearing seat are locked and connected by bolts; and

[0009] An elastic diaphragm is arranged between the second bearing seat and the fixed bracket. The elastic diaphragm is arranged on the second bearing seat. A limiting spring sheet is provided on the elastic diaphragm. A bearing surface corresponding to the limiting spring sheet is provided on the inner side of the fixed bracket.

[0010] Furthermore, the sheet metal at the four sides of the elastic diaphragm is bent to form limiting spring pieces, the four limiting spring pieces have the same structure, and both ends of the limiting spring pieces are in a suspended state.

[0011] Further, both ends of the limiting spring sheet are provided with threaded holes; a second boss is provided on the second bearing seat, and the upper and lower sides of the second boss are abutted against the two limiting spring sheets and locked by screws; the left and right sides of the second boss have a bearing table and a curved arc surface, the bearing table is centrally arranged, and the curved arc surfaces are arranged on both sides of the bearing table, and the bearing table is abutted against the limiting spring sheet.

[0012] Furthermore, the bearing surface in the fixed bracket includes an arcuate bearing surface and a horizontal bearing surface, the horizontal bearing surface corresponds to the limiting spring plates on the upper and lower sides of the second boss, and the arcuate bearing surface corresponds to the limiting spring plates on the left and right sides of the second boss.

[0013] Furthermore, positioning holes are provided on both sides of the arc-shaped bearing surface, the positioning holes on the arc-shaped bearing surface correspond to the threaded holes on the limiting spring pieces, and the positioning holes extend to the outside of the fixing bracket.

[0014] Furthermore, the encoder housing is provided with an inwardly recessed boss, one end of which is open and communicated with the interior of the encoder housing; and the first bearing seat is provided with a notch for avoiding the boss.

[0015] Furthermore, a clamping flange is arranged on the outer side of the encoder housing, and the clamping flange is arranged on the coaxial shaft bracket.

[0016] Furthermore, a first sealing plate is disposed on the first bearing seat, and the first sealing plate is located outside the first bearing.

[0017] Furthermore, a second sealing plate is provided on the second bearing seat, and the second sealing plate is located on the outside of the second bearing; a plurality of universal balls are provided on the second sealing plate, and the plurality of universal balls are distributed in a circular shape, and small holes corresponding to the universal balls are provided on the concentric axis bracket.

[0018] Furthermore, the two ends of the coaxial axis bracket are respectively provided with a first annular boss and a second annular boss, and the first annular boss and the second annular boss are both provided with grooves in the axial direction.

[0019] The above technical solution has the following beneficial effects: the limiting spring sheet on the elastic diaphragm enables the second bearing seat and the fixed bracket to have elastic reset ability, which calibrates the concentricity of the encoder, thereby reducing the assembly concentricity requirements of the encoder, and the encoder plays an automatic adjustment role after operation. At the same time, slots are provided on both sides of the concentric shaft bracket, so that the concentric shaft bracket can move in the vertical direction within a limited range, with high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0022] Figure 1 The utility model provides a schematic diagram of the explosion structure.

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the second bearing seat and the elastic diaphragm provided by the utility model.

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixing bracket provided by the utility model.

[0025] Figure 4 This is a three-dimensional structural schematic diagram of the coaxial axis bracket provided by the utility model.

[0026] In the figure: 1-fixed bracket; 2-second bearing seat; 3-elastic diaphragm; 4-second bearing; 5-second sealing plate; 6-first sealing plate; 7-coaxial shaft bracket; 8-first bearing; 9-first bearing seat; 10-encoder housing; 11-clamping flange;

[0027] 101-arc-shaped bearing surface; 102-horizontal bearing surface; 103-positioning hole;

[0028] 21-second boss; 22-fixing surface; 23-adjusting surface; 24-small boss; 25, 33-axial holes;

[0029] 31-limiting spring; 32-pressing edge;

[0030] 71 - first annular boss; 72 - second annular boss; 73, 74 - slots; 75 - small hole. DETAILED DESCRIPTION

[0031] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other. Example

[0032] See also Figure 1 As shown, an encoder packaging structure includes an encoder housing 10, a first bearing seat 9 is concentrically arranged in the encoder housing 10, a first bearing 8 is centrally embedded in the first bearing seat 9, one end of the concentric shaft bracket 7 is inserted into the first bearing 8 and exposed to the outside of the encoder housing 10 and connected to the clamping flange 11. The other end of the concentric shaft bracket 7 is inserted into the second bearing 4, the second bearing 4 is centrally arranged on the second bearing seat 2, and the second bearing seat 2 is arranged on the fixed bracket 1. The first bearing seat 9 and the second bearing seat 2 are locked and connected by bolts.

[0033] An elastic diaphragm 3 is provided between the second bearing seat 2 and the fixed bracket 1. The elastic diaphragm 3 is used to adjust the position deviation between the second bearing seat 2 and the fixed bracket 1, thereby calibrating the concentricity of the encoder.

[0034] Specifically, if Figure 2 As shown, the sheet metal at the four sides of the elastic diaphragm 3 is bent to form a limit spring piece 31. The four limit spring pieces 31 have the same structure, and threaded holes are set at both ends. At the same time, the two ends of the limit spring piece 31 are in a suspended state, so that it can be pressed down and curled inward. The elastic diaphragm 3 is a square structure as a whole, with an axial hole 33 at the center, and a pressing edge 32 is set between two adjacent limit spring pieces 31.

[0035] The second bearing seat 2 is provided with a second boss 21, and the upper and lower sides of the second boss 21 are fixed surfaces 22, and the fixed surface 22 has screw holes corresponding to the threaded holes on the limiting spring sheet. When the elastic diaphragm 3 is installed on the second bearing seat 2, the elastic diaphragm 3 can be screwed and fixed through the screw holes on the fixed surface 22. The left and right sides of the second boss 21 are adjustment surfaces 23, and the above-mentioned adjustment surfaces 23 include a central bearing table and curved arc surfaces located on both sides of the bearing table. When the elastic diaphragm 3 is installed on the second bearing seat 2, the bearing table abuts against the limiting spring sheet, and a gap is left between the curved arc surface and the limiting spring sheet to provide space for the limiting spring sheet to be pressed down. At the same time, there is a small boss 24 on the second boss 21. When the elastic diaphragm 3 is installed on the second bearing seat 2, the pressing edge 32 is pressed on the side wall of the small boss 24 to play a role in position limitation. The center of the second bearing seat 2 is the shaft hole 25.

[0036] like Figure 3As shown, a bearing surface corresponding to the limiting spring piece is provided on the inner side of the fixing bracket 1, and the above-mentioned bearing surface includes an arc-shaped bearing surface 101 and a horizontal bearing surface 102. The horizontal bearing surface 102 corresponds to the limiting spring pieces on the upper and lower sides of the second boss, so that the horizontal bearing surface 102 is fixed to the fixed surface 22 of the second bearing seat 2. The arc-shaped bearing surface 101 corresponds to the limiting spring pieces on the left and right sides of the second boss, and the arc-shaped bearing surface 101 here will press down the limiting spring piece, so that the limiting spring piece abuts against the curved arc surface.

[0037] When the second bearing seat 2 and the elastic diaphragm 3 are installed on the fixed bracket 1, a pair of limit springs on the elastic diaphragm 3 bend and clamp on the fixed bracket 1. This enables the second bearing seat and the fixed bracket to have elastic reset ability, calibrates the concentricity of the encoder, and further reduces the assembly concentricity requirements of the encoder, and the encoder plays a role of automatic adjustment after operation.

[0038] Furthermore, positioning holes 103 are provided on both sides of the arc-shaped bearing surface 101, and the positioning holes 103 extend to the outside of the fixing bracket 1. At the same time, the positioning holes 103 on the arc-shaped bearing surface 101 correspond to the threaded holes on the limiting spring sheet. When the second bearing seat 2 and the elastic diaphragm 3 are installed on the fixing bracket 1, the fastening screws pass through the positioning holes 103 and abut against the threaded holes on the limiting spring sheet, further limiting the position between the elastic diaphragm 3 and the second bearing seat 2, avoiding obvious deviation between the two during use, which affects the use of the encoder.

[0039] In this embodiment, the coaxial support 7 can move in the vertical direction within a limited range. Figure 4 As shown, the two ends of the coaxial shaft bracket 7 are respectively provided with a first annular boss 71 and a second annular boss 72, and the first annular boss 71 and the second annular boss 72 are axially provided with slots 73 and 74. Through the application of the slots 73 and 74, the first annular boss 71 and the second bearing 4, and the second annular boss 72 and the first bearing 8 can move relative to each other. A first sealing plate 6 is arranged on the first bearing seat 9, and the first sealing plate 6 is located outside the first bearing 8 to ensure that the placement position of the first bearing 8 is stable. A second sealing plate 5 is arranged on the second bearing seat 2, and the second sealing plate 5 is located outside the second bearing 4. Six universal balls are arranged on the second sealing plate 5, and the six universal balls are distributed in a circular shape, and small holes 75 corresponding to the universal balls are arranged on the coaxial shaft bracket 7. Through the above structural design, on the one hand, the placement position of the second bearing 4 is ensured to be stable, and on the other hand, the coaxial shaft bracket 7 is in contact with the universal ball, so that the rotation of the coaxial shaft bracket 7 is smoother.

[0040] In this embodiment, an inwardly recessed boss is provided on the encoder housing 10, one end of which is open and communicated with the interior of the encoder housing; a notch for avoiding the boss is provided on the first bearing seat 9. This is used to install the encoder interface, and enter the interior of the encoder housing 10 from this point to realize the circuit layout of the encoder.

[0041] During assembly, first install the second bearing 4 into the second bearing seat 2 and fix it with the second sealing plate 5; install the first bearing 8 into the first bearing seat 9 and fix it with the first sealing plate 6. Then install the two ends of the coaxial shaft bracket 7 onto the second bearing 4 and the first bearing 8, and then lock and fix the second bearing seat 2 and the first bearing seat 9. Then install the elastic diaphragm 3, and place the above-mentioned whole into the encoder housing 10, and then install the clamping flange 11, install the fixed bracket 1 in place and lock it on the encoder housing 10 to complete the assembly. A drive shaft is provided in the coaxial shaft bracket 7, and the above drive shaft can rotate with the coaxial shaft bracket 7.

[0042] The utility model uses the limit spring on the elastic diaphragm to enable the second bearing seat and the fixed bracket to have elastic reset ability, which plays a role in calibrating the concentricity of the encoder, thereby reducing the assembly concentricity requirements of the encoder, and the encoder plays a role in automatic adjustment after operation. At the same time, slots are provided on both sides of the concentric shaft bracket, so that the concentric shaft bracket can move in the vertical direction within a limited range, and has high flexibility.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An encoder packaging structure, characterized in that: The encoder comprises an encoder housing, wherein a first bearing seat is concentrically arranged in the encoder housing, a first bearing is centrally embedded in the first bearing seat, one end of a concentric shaft bracket is inserted into the first bearing and exposed to the outside of the encoder housing; the other end of the concentric shaft bracket is inserted into a second bearing, the second bearing is centrally arranged on the second bearing seat, the second bearing seat is arranged on a fixed bracket, and the first bearing seat and the second bearing seat are locked and connected by bolts; and An elastic diaphragm is arranged between the second bearing seat and the fixed bracket. The elastic diaphragm is arranged on the second bearing seat. A limiting spring sheet is provided on the elastic diaphragm. A bearing surface corresponding to the limiting spring sheet is provided on the inner side of the fixed bracket.

2. The encoder packaging structure according to claim 1, characterized in that: The sheet metal at the four sides of the elastic diaphragm is bent to form limiting spring pieces, the four limiting spring pieces have the same structure, and both ends of the limiting spring pieces are in a suspended state.

3. The encoder packaging structure according to claim 2, characterized in that: Both ends of the limiting spring sheet are provided with threaded holes; a second boss is provided on the second bearing seat, and the upper and lower sides of the second boss are in contact with the two limiting spring sheets and are locked by screws; the left and right sides of the second boss have a bearing table and a curved arc surface, the bearing table is centrally arranged, and the curved arc surfaces are arranged on both sides of the bearing table, and the bearing table is in contact with the limiting spring sheet.

4. The encoder packaging structure according to claim 3, characterized in that: The bearing surface in the fixed bracket includes an arc-shaped bearing surface and a horizontal bearing surface. The horizontal bearing surface corresponds to the limiting spring pieces on the upper and lower sides of the second boss, and the arc-shaped bearing surface corresponds to the limiting spring pieces on the left and right sides of the second boss.

5. The encoder packaging structure according to claim 4, characterized in that: Positioning holes are arranged on both sides of the arc-shaped bearing surface. The positioning holes on the arc-shaped bearing surface correspond to the threaded holes on the limiting spring pieces. The positioning holes extend to the outside of the fixing bracket.

6. The encoder packaging structure according to claim 5, characterized in that: The encoder housing is provided with an inwardly recessed boss, one end of which is open and communicated with the interior of the encoder housing; the first bearing seat is provided with a notch for avoiding the boss.

7. The encoder packaging structure according to claim 6, characterized in that: A clamping flange is arranged on the outer side of the encoder housing, and the clamping flange is arranged on the coaxial shaft bracket.

8. The encoder packaging structure according to claim 1, characterized in that: A first sealing plate is arranged on the first bearing seat, and the first sealing plate is located outside the first bearing.

9. The encoder packaging structure according to claim 1, characterized in that: A second sealing plate is arranged on the second bearing seat, and the second sealing plate is located outside the second bearing; a plurality of universal balls are arranged on the second sealing plate, and the plurality of universal balls are distributed in a circle, and small holes corresponding to the universal balls are arranged on the concentric axis bracket.

10. The encoder packaging structure according to claim 1, characterized in that: The two ends of the coaxial shaft support are respectively provided with a first annular boss and a second annular boss, and the first annular boss and the second annular boss are both provided with slots in the axial direction.

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