Swing tensioning mechanism for abrasive belt rice mill

Abstract

The utility model relates to a swing tensioning mechanism for an abrasive belt rice mill, which belongs to the technical field of abrasive belt rice mills, and aims to solve the problem that the installation, debugging and subsequent maintenance time of the abrasive belt rice mill is long due to the complex tensioning structure of the abrasive belt rice mill. A tensioning roller shaft is connected to the lower portion of the swing support and rotationally connected with a tensioning roller through a rolling bearing, the upper portion of the swing support is connected with a transverse plate on the frame through a plurality of extension springs, a locking device is installed on the side end face of the frame, and the inner end of an operating rod is connected to the upper portion of the swing support. The outer end of the operating rod penetrates through the arc-shaped groove to be matched with the locking device, a worker can control the state of the tensioning device, the tensioning function is achieved, the maintenance time of the abrasive belt rice husking machine is shortened, the manufacturing cost is low, the structure is simple, and the abrasive belt rice husking machine can be conveniently installed, debugged and subjected to follow-up maintenance work.

Description

Technical Field

[0001] The utility model belongs to the technical field of abrasive belt rice milling machines, and in particular relates to a swing tensioning mechanism for abrasive belt rice milling machines. Background Art

[0002] The tensioning mechanism of the existing belt rice milling machine mostly uses a linear motion mechanism based on a cylinder to tension the belt. This type of mechanism has high manufacturing cost and complex structure. The installation, debugging and subsequent maintenance of the belt rice milling machine will consume a lot of time, affecting the maintenance efficiency of the belt rice milling machine.

[0003] In view of the above problems, a swing tensioning mechanism for a belt rice mill is urgently needed to be designed. Utility Model Content

[0004] The problem to be solved by the utility model is that the existing tensioning structure of the sand belt rice mill is complicated, which makes the installation, debugging and subsequent maintenance of the sand belt rice mill take a long time. A swing tensioning mechanism for the sand belt rice mill is proposed.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A swing tensioning mechanism for an abrasive belt rice mill comprises: a swing bracket, a locking device, a joystick, a swing shaft, a tension spring, a tension roller shaft, a rolling bearing and a tension roller, wherein the swing bracket is installed on the frame of the abrasive belt rice mill through the swing shaft, the lower part of the swing bracket is connected to the tension roller shaft, the tension roller shaft is rotatably connected to the tension roller shaft through the rolling bearing, the upper part of the swing bracket is connected to the cross plate on the frame through a plurality of tension springs, a locking device is installed on the side end surface of the frame, the inner end of the joystick is connected to the upper part of the swing bracket, an arc groove is provided on the side surface of the frame, and the outer end of the joystick passes through the arc groove and cooperates with the locking device.

[0007] Furthermore, the plurality of tension springs are connected to the swing bracket via a tension spring seat.

[0008] Furthermore, an axial positioning sleeve is provided at the end of the swing shaft.

[0009] Furthermore, the swing shaft is rotatably connected to the swing bracket via a swing bushing.

[0010] Furthermore, both ends of the tensioning roller shaft are connected to the swing bracket via fixing bolts.

[0011] Furthermore, tensioning roller end covers are provided at both ends of the tensioning roller.

[0012] Furthermore, the end cover of the tensioning roller is connected to the tensioning roller via end cover bolts.

[0013] The beneficial effects of the utility model are:

[0014] The present application uses a stretching spring to tighten the swing bracket and then drive the tensioning roller installed on the tensioning roller shaft, so that the tensioning roller contacts the inner surface of the loose edge of the abrasive belt. During maintenance, the locking device is used to limit the position of the operating lever and thus fix the swing bracket, so that the staff can control the state of the tensioning device, realize the tensioning function and reduce the maintenance time of the abrasive belt rice milling machine. The application also has a low manufacturing cost and a simple structure, which is convenient for the installation, commissioning and subsequent maintenance of the abrasive belt rice milling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the swing tensioning mechanism of the utility model;

[0016] Figure 2 This is a top view of the utility model applied to a rice mill;

[0017] Figure 3 This is a schematic diagram of the tensioning state of the utility model applied to a rice mill;

[0018] Figure 4 It is a cross-sectional view of the swing tensioning mechanism of the utility model;

[0019] Figure 5 It is a schematic diagram of the state of the swing tensioning mechanism of the utility model when it is tensioned;

[0020] Figure 6 It is a schematic diagram of the state of the swing tensioning mechanism of the utility model when it is released.

[0021] Description of reference numerals:

[0022] Active roller 1, abrasive belt 2, frame 3, swing bracket 4, driven roller 5, locking device 6, joystick 7, swing shaft 8, tension spring seat 9, tension spring 10, axial positioning spacer 11, swing bushing 12, tensioning roller 13, fixing bolt 14, tensioning roller end cover 15, end cover bolt 16, rolling bearing 17, tensioning roller 18, arc groove 19. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementations. It should be understood that the specific implementations described herein are only used to explain the utility model and are not used to limit the utility model, that is, the specific implementations described are only part of the implementations of the utility model, not all of the specific implementations. The components of the specific implementations of the utility model described and shown in the drawings here can be arranged and designed in various different configurations, and the utility model can also have other implementations.

[0024] Therefore, the following detailed description of the specific embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents the selected specific embodiments of the present invention. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] In order to further understand the content, features and functions of the utility model, the following specific implementation modes are given as examples and described in detail with the accompanying drawings as follows:

[0026] Embodiment 1: A swing tensioning mechanism for a sand belt rice mill, combined with the attached Figure 1 To Attachment Figure 6The invention is described as follows, comprising: an active roller shaft 1, an abrasive belt 2, a frame 3, a swing bracket 4, a driven roller shaft 5, a locking device 6, a joystick 7, a swing shaft 8, a tension spring 10, a tension roller shaft 13, a rolling bearing 17, a tension roller 18 and an arc groove 19, wherein the active roller shaft 1 and the driven roller shaft 5 are rotatably connected at both ends of the frame 3, the active roller shaft 1 and the driven roller shaft 5 are connected with the abrasive belt 2, the swing shaft 8 is rotatably connected in the mounting hole of the frame 3, the swing shaft 8 is connected to the U-shaped grooves at both ends of the swing bracket 4, and the swing bracket 4 is provided with a plurality of tension springs above the swing bracket 4. The spring 10 is connected to the horizontal plate on the frame 3, and a locking device 6 is installed on the side end surface of the frame 3. The locking device 6 is a carbon steel galvanized buckle with a model number of XK712-92-Y produced by Yilv Hardware Manufacturer. A joystick 7 for cooperating with the locking device 6 is connected to the swing bracket 4. An arc groove 19 for guiding the joystick 7 is opened on the side of the frame 3. The joystick 7 moves in the arc groove 19. A tensioning roller 13 is connected to the bottom of the swing bracket 4. Both ends of the tensioning roller 13 are rotatably connected to the tensioning roller 18 through rolling bearings 17. The tensioning roller 18 is stretched. Under the pull of the spring 10, it always keeps in contact with the inner surface of the abrasive belt 2 to achieve tension and rotates synchronously with the abrasive belt 2. The active roller 1 and the driven roller 5 are parallel and arranged in an inverted triangle with the tensioning roller 13. The tensioning roller 13 is located on the inner side of the loose edge of the abrasive belt 2 at the lower part of the frame 3. The annular abrasive belt 2 moves around its outer circumference and is driven by the active roller 1 to achieve movement. The swing bracket 4 is connected to the tension spring 10 through the tension spring seat 9. An axial positioning sleeve 11 is provided at the end of the swing shaft 8. The axial positioning sleeve 11 is used for axial positioning of the swing shaft 8. The two ends of the swing shaft 8 are rotatably connected to the swing bracket 4 through the swing bushing 12, the two ends of the tensioning roller shaft 13 are connected to the swing bracket 4 through the fixing bolts 14, and the two ends of the tensioning roller 18 are provided with tensioning roller end covers 15, and the tensioning roller end cover 15 is connected to the tensioning roller 18 through the end cover bolts 16. The present application tightens the swing bracket 4 through the tension spring 10 to drive the tensioning roller 18 installed on the tensioning roller shaft 13, so that the tensioning roller 18 contacts the inner surface of the loose edge of the abrasive belt 2, thereby realizing the tensioning function and reducing the maintenance time of the abrasive belt rice milling machine.

[0027] Embodiment 2: The bolt reserved hole of the bolt matching frame 3 can be replaced by a locking device 6 to limit the operating rod 7.

[0028] Working process:

[0029] When the utility model is in the tensioning state, the tensioning roller 18 always keeps in contact with the inner surface of the loose edge of the sand belt to realize the tensioning function; when the sand belt 2 needs to be replaced, the operating lever 7 is manually pressed to make the swing bracket 4 rotate counterclockwise around the swing shaft 8, thereby making the tensioning roller 18 separate from the inner surface of the loose edge of the sand belt 2. At this time, the stretching amount of the tension spring 10 reaches the maximum value, the operating lever 7 is locked by the locking device 6 at this position, and the swing bracket 4 stops moving. After the sand belt 2 replacement operation is completed, the locking device 6 is manually loosened, the operating lever 7 is released, and the swing bracket 4 rotates clockwise around the swing shaft 8 under the pulling force of the tension spring 10, so that the tensioning roller 18 is in contact with the inner surface of the loose edge of the sand belt 2 again, and the tensioning state of the sand belt rice mill is restored.

[0030] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although the present application has been described above with reference to specific embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various features in the specific embodiments disclosed in the present application may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A swing tensioning mechanism for a sand belt rice mill, characterized in that: include: A swing bracket (4), a locking device (6), an operating lever (7), a swing shaft (8), a tensioning roller (13), a rolling bearing (17) and a tensioning roller (18), wherein the swing bracket (4) is mounted on a frame (3) of a sand belt rice mill via the swing shaft (8), the lower portion of the swing bracket (4) is connected to a tensioning roller (13), the tensioning roller (13) is rotatably connected to the tensioning roller (18) via the rolling bearing (17), the upper portion of the swing bracket (4) is connected to a horizontal plate on the frame (3) via a plurality of tensioning springs (10), a locking device (6) is mounted on a side end surface of the frame (3), the inner end of the operating lever (7) is connected to the upper portion of the swing bracket (4), an arc groove (19) is provided on a side surface of the frame (3), and the outer end of the operating lever (7) passes through the arc groove (19) and cooperates with the locking device (6).

2. The swing tensioning mechanism for a sand belt rice mill according to claim 1, characterized in that: The plurality of tension springs (10) are connected to the swing bracket (4) via a tension spring seat (9).

3. The swing tensioning mechanism for a sand belt rice mill according to claim 1, characterized in that: An axial positioning sleeve (11) is provided at the end of the swing shaft (8).

4. The swing tensioning mechanism for a sand belt rice mill according to claim 1, characterized in that: The swing shaft (8) is rotatably connected to the swing bracket (4) via a swing bushing (12).

5. The swing tensioning mechanism for a sand belt rice mill according to claim 1, characterized in that: Both ends of the tensioning roller shaft (13) are connected to the swing bracket (4) via fixing bolts (14).

6. The swing tensioning mechanism for a sand belt rice mill according to claim 1, characterized in that: Tensioning roller end covers (15) are provided at both ends of the tensioning roller (18).

7. The swing tensioning mechanism for a sand belt rice mill according to claim 6, characterized in that: The tensioning roller end cover (15) is connected to the tensioning roller (18) via an end cover bolt (16).

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