Mounting assembly for rotary absolute value encoder of gantry crane

Abstract

The utility model discloses a mounting assembly of a rotary absolute value encoder of a gantry crane, which belongs to the technical field of cranes and comprises a shell, a bevel gear, a first connecting shaft and a second connecting shaft, a first bearing seat is assembled on the surface of one side of the shell, the first connecting shaft is movably mounted in the first bearing seat, and a second bearing seat is assembled on the surface of the other side of the shell. The surface of the first connecting shaft is in key connection with a bevel gear, a third bearing seat is assembled on the surface of the bottom of the shell, the second connecting shaft is movably installed in the third bearing seat, the end, in the shell, of the second connecting shaft is in key connection with a bevel gear, and the bevel gear is meshed with the bevel gear. The end, outside the shell, of the second connecting shaft is in key connection with a rotation gear. The utility model provides a set of rotary absolute value encoder capable of being flexibly installed, and the rotary absolute value encoder can be used under various complex working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to an installation component of a rotary absolute value encoder of a portal crane. Background Art

[0002] Cranes are electric loading and unloading machines commonly used in ports and docks with complex structures. Among them, portal cranes are supported on the ground by portal legs and travel on tracks. They are mainly used for loading and unloading at bulk cargo docks. The slewing platform structures of portal cranes vary in size, and the installation of absolute encoders often cannot meet complex working conditions and cannot adapt to subsequent needs. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an installation component of a gantry crane rotary absolute value encoder, providing a set of flexibly installable rotary absolute value encoders to ensure that various complex working conditions can also meet the use.

[0004] The utility model is realized through the following technical scheme: an installation component of a gantry crane rotary absolute encoder, comprising a housing, a bevel gear, a first connecting shaft and a second connecting shaft, a first bearing seat is mounted on one side surface of the housing, the first connecting shaft is movably installed in the first bearing seat, a surface key of the first connecting shaft is connected with a bevel gear, a third bearing seat is mounted on the bottom surface of the housing, the second connecting shaft is movably installed in the third bearing seat, an end portion of the second connecting shaft in the housing is keyed to a bevel gear, the bevel gear is meshed with the bevel gear, and an end portion of the second connecting shaft outside the housing is keyed to a rotary gear.

[0005] Furthermore, a second bearing seat is mounted on one side surface of the shell corresponding to the first bearing seat, and one end of the first connecting shaft is movably mounted to the surface of the shell through the second bearing seat.

[0006] Furthermore, one end of the first connecting shaft is bolted to an encoder bracket via bolts.

[0007] Furthermore, an encoder shield is bolted to the surface of the encoder bracket.

[0008] Furthermore, a mounting bracket is bolted to the top of the encoder bracket.

[0009] Furthermore, one end surface of the mounting bracket is bolted and fixed to the top surface of the housing.

[0010] Furthermore, a first shaft cap is mounted on the surface of the first bearing seat, and a second shaft cap is mounted on the surface of the second bearing seat.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model arranges a housing, a bevel gear, a shaft, a bearing seat, a rotary pinion, an encoder bracket, an encoder shield, a mounting bracket, a shaft cap, etc., and utilizes the bevel gear and the bevel gear installed inside the housing to cooperate to change the transmission direction and reduce the installation space of the encoder. The utility model can be flexibly applied to various forms of door machines. Lubricating oil can also be poured into the housing to increase the lubrication of the gears, and a protective cover can be added to the encoder to block oil and dust splashing, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure inside the shell of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the bevel gear of the utility model.

[0016] In the figure: 1. housing; 2. bevel gear; 3. first connecting shaft; 4. second connecting shaft; 6. first bearing seat; 7. rotary gear; 8. encoder bracket; 9. encoder shield; 10. mounting bracket; 11. first shaft cap; 12. second bearing seat; 13. second shaft cap; 14. third bearing seat. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1 to Figure 3 , the utility model provides an embodiment: a mounting assembly of a gantry crane rotary absolute encoder, including a housing 1, a bevel gear 2, a first connecting shaft 3 and a second connecting shaft 4, a first bearing seat 6 is mounted on one side surface of the housing 1, the first connecting shaft 3 is movably mounted in the first bearing seat 6, the surface of the first connecting shaft 3 is keyed to a bevel gear, a third bearing seat 14 is mounted on the bottom surface of the housing 1, the second connecting shaft 4 is movably mounted in the third bearing seat 14, the end of the second connecting shaft 4 in the housing 1 is keyed to a bevel gear 2, the bevel gear 2 is meshed with the bevel gear, and the end of the second connecting shaft 4 outside the housing 1 is keyed to a rotary gear 7. A second bearing seat 12 is mounted on one side surface of the housing 1 corresponding to the first bearing seat 6, and one end of the first connecting shaft 3 is movably mounted to the surface of the housing 1 through the second bearing seat 12.

[0019] One end of the first connecting shaft 3 is bolted to an encoder bracket 8 by bolts, the surface of the encoder bracket 8 is bolted to an encoder shield 9, the top of the encoder bracket 8 is bolted to a mounting bracket 10, one end surface of the mounting bracket 10 is bolted and fixed to the top surface of the housing 1, the surface of the first bearing seat 6 is equipped with a first shaft cap 11, and the surface of the second bearing seat 12 is equipped with a second shaft cap 13. The specific implementation is as follows:

[0020] Component preparation and inspection: First, ensure that all components (housing 1, bevel gear 2, first connecting shaft 3, second connecting shaft 4, first bearing seat 6, second bearing seat 12, third bearing seat 14, encoder bracket 8, encoder shield 9, mounting bracket 10, first shaft cap 11, second shaft cap 13 and absolute encoder, etc.) are complete and undamaged. Check the dimensions and quality of each component to ensure that all parts meet the design requirements.

[0021] Install the first connecting shaft 3 and the bevel gear: Assemble the bevel gear on the first connecting shaft 3 by key connection, and ensure that the tooth shape of the bevel gear is accurate. Then, install the assembled first connecting shaft 3 into the housing 1 through the first bearing seat 6, and fix it with a deep groove ball bearing to ensure that it rotates smoothly and withstands the predetermined load. The two ends of the first bearing seat 6 are fastened with the first shaft cap 11 to prevent the outer ring of the bearing from moving.

[0022] Assemble the second connecting shaft 4 and the bevel gear 2: Install the second connecting shaft 4 to the bottom of the housing 1 through the third bearing seat 14, and ensure that the inner end of the second connecting shaft 4 is firmly connected to the bevel gear 2. The bevel gear 2 is precisely meshed with the bevel gear on the first connecting shaft 3 to achieve a 90° transmission direction conversion. The outer end of the second connecting shaft 4 is assembled with the slewing gear 7, whose module should fully match the gear of the slewing platform of the portal crane for smooth meshing.

[0023] Encoder bracket and encoder installation: Install the encoder bracket 8 at one end of the first connecting shaft 3 and fix it with bolts. Then, install the absolute encoder on the encoder bracket 8 to ensure that the position of the encoder can accurately detect the change of the rotation angle. The encoder shield 9 is installed on the surface of the encoder bracket 8 to prevent dust and water and protect the encoder from environmental influences.

[0024] Mounting bracket fixation: Fix the mounting bracket 10 to the top of the slewing platform of the portal crane and ensure its stability by welding or bolting. The other end of the mounting bracket 10 is fixedly connected to the top of the housing 1 to provide additional support and stability for the entire encoder assembly.

[0025] During the specific installation, a rotary absolute encoder is installed on the slewing platform of the gantry crane. The first connecting shaft 3 and the second connecting shaft 4 are used to assemble the matching bevel gear and bevel gear inside the casing 1 to change the transmission direction into a 90° direction. Two deep groove ball bearings are installed on the first bearing seat 6 and the second bearing seat 12 at both ends of the first connecting shaft 3 to fix the first connecting shaft 3 on the outside. The end of the first connecting shaft 3 is connected to the absolute encoder with a coupling. The bevel gear 2 is installed outside the second connecting shaft 4, and it cooperates with the bevel gear installed on the first connecting shaft 3 in a 1:1 ratio to change the transmission direction. A rotary gear 7 is installed on the outside of the second connecting shaft 4. The module of the rotary gear 7 is the same as the module of the gantry crane slewing platform gear to ensure that the gears are meshed with each other. The first shaft cap 11 and the second shaft cap 13 block the outer ring of the bearing. The encoder bracket 8 fixes the absolute encoder. The encoder shield 9 protects the encoder from rain and dust. The mounting bracket 10 is welded to the bottom of the gantry crane slewing platform to fix the entire encoder.

[0026] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0027] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications to the shapes, structures, features and spirits described in the claims of the present invention should be included in the claims of the present invention.

Claims

1. An installation assembly for a portal crane rotary absolute encoder, characterized in that: It comprises a housing (1), a bevel gear (2), a first connecting shaft (3) and a second connecting shaft (4), wherein: A first bearing seat (6) is mounted on one side surface of the housing (1), and the first connecting shaft (3) is movably mounted in the first bearing seat (6); The surface of the first connecting shaft (3) is keyed to a bevel gear, the bottom surface of the housing (1) is equipped with a third bearing seat (14), the second connecting shaft (4) is movably installed in the third bearing seat (14), the end of the second connecting shaft (4) in the housing (1) is keyed to a bevel gear (2), and the bevel gear (2) is meshed with the bevel gear; The end of the second connecting shaft (4) outside the housing (1) is key-connected with a rotary gear (7).

2. The installation assembly of the gantry crane rotary absolute encoder according to claim 1, characterized in that: A second bearing seat (12) is mounted on one side surface of the housing (1) corresponding to the first bearing seat (6).

3. The installation assembly of the gantry crane rotary absolute encoder according to claim 2, characterized in that: One end of the first connecting shaft (3) is movably mounted on the surface of the housing (1) through a second bearing seat (12).

4. The installation assembly of the gantry crane rotary absolute encoder according to claim 1, characterized in that: One end of the first connecting shaft (3) is bolted to an encoder bracket (8) via bolts.

5. The installation assembly of the gantry crane rotary absolute encoder according to claim 4, characterized in that: An encoder shield (9) is bolted to the surface of the encoder bracket (8).

6. The installation assembly of the gantry crane rotary absolute encoder according to claim 5, characterized in that: A mounting bracket (10) is bolted to the top of the encoder bracket (8).

7. The installation assembly of the gantry crane rotary absolute encoder according to claim 6, characterized in that: One end surface of the mounting bracket (10) is bolted and fixed to the top surface of the housing (1).

8. The installation assembly of the gantry crane rotary absolute encoder according to claim 3, characterized in that: The surface of the first bearing seat (6) is equipped with a first shaft cap (11), and the surface of the second bearing seat (12) is equipped with a second shaft cap (13).

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