Tensioner for crossheading belt

Abstract

The utility model provides a tensioner for a crossheading belt, which belongs to the technical field of belt tensioners and comprises a support. The supporting arm is rotationally arranged on the inner side wall of the bracket; the tension adjusting assembly is arranged on the bracket and the supporting arm; the tension adjusting assembly comprises a ball screw, a tension adjusting assembly and a tension adjusting assembly, wherein the ball screw rotates in the support; the moving table is fixed on a nut seat on the ball screw through a screw; the two first fixing blocks are symmetrically welded to the top of the movable table; by means of a connecting rod mechanism formed among the linkage plate, the supporting arm and the movable table, the supporting arm can rotate when the movable table is controlled to move linearly, then the relative position of the belt tensioning wheel and the crossheading belt is controlled, and through the extrusion depth of the crossheading belt after the position of the belt tensioning wheel is changed, the position of the crossheading belt is changed. The purpose of adjusting the tensioning force of the crossheading belt is achieved, and the tensioning force of the tensioning device on the crossheading belt is easy and convenient to adjust.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of belt tensioner, specifically relates to a tensioner for the belt of crossheading. BACKGROUND

[0002] The key equipment involved in the belt conveyor is the conveying belt, and the material conveying needs to be carried out through the belt, and the belt of crossheading is one of the conveying belts, after the belt of crossheading is used for a period of time, the thermal expansion and cold shrinkage of the belt of crossheading can be caused due to the change of environmental temperature and the heat emitted by the material in the running process and other objective reasons, and the belt of crossheading can also be stretched in the running process, so that the belt is loosened, and a series of abnormal phenomena such as skidding and noise are caused.

[0003] And the method commonly used in the prior art is to adjust through the bolt arranged on the rack, due to some large conveying systems, the belt of crossheading is relatively long, and sometimes the belt of crossheading is also relatively wide in order to increase the conveying capacity, at this time, the bolt is used for adjustment, so that the operation is inconvenient, and a plurality of bolts need to be disassembled to achieve the purpose of adjusting the tension of the belt of crossheading.

[0004] Therefore, the tensioner for the belt of crossheading is provided. SUMMARY

[0005] The utility model provides a tensioner for the belt of crossheading, and aims at solving the problems mentioned above.

[0006] The utility model embodiment provides a tensioner for the belt of crossheading, including support, the support arm of rotating in the inner side wall of support, and the tension force adjusting assembly of being located on support and support arm, wherein, the tension force adjusting assembly includes: the ball screw of rotating in the inside of support, the moving table of being fixed through screw nut seat on ball screw, two fixed blocks one of symmetry welding on the top of moving table, two fixed blocks two of symmetry welding on the outer side wall of support arm near moving table side upper position, the linkage board of rotating between two fixed blocks one and two fixed blocks two, two tension wheel support plates of symmetry rotating in the outer side wall of support arm, the reinforcing connecting column of being welded between two tension wheel support plates, and the belt tension wheel of rotating between two tension wheel support plates near reinforcing connecting column side upper position, the arc plate sleeve of being welded on the outer side wall of support arm, the arc plate of being welded on the outer side wall of reinforcing connecting column, the spring of being fixed in the inner side wall of arc plate sleeve.

[0007] Further, the inner bottom of the support is provided with a through groove near the upper position of the ball screw, and one end of the ball screw is located on the outer side of the support;

[0008] By adopting the technical scheme, the smooth rotation of the ball screw is ensured, and then the moving table can move linearly along the inner bottom of the support when the ball screw rotates.

[0009] Further, the moving table and the support are connected through the sliding block and the sliding groove.

[0010] By adopting the technical scheme, the stability of the moving table moving on the inner bottom of the support is ensured through the sliding connection.

[0011] Further, four rotating shafts are symmetrically arranged on the outer side wall of the linkage plate, and the four rotating shafts respectively penetrate through the two fixed blocks one and the two fixed blocks two.

[0012] By adopting the technical scheme, the linkage plate is used to realize the movable connection between the moving table and the supporting arm, so that the inclination angle of the supporting arm is controlled through the change of the angle of the linkage plate, the position of the belt tensioning wheel is controlled, and the tensioning of the crossheading belt is achieved.

[0013] Further, one side end of the arc plate is located in the arc plate sleeve, and the one side end of the arc plate is fixedly connected with one end of the spring.

[0014] By adopting the technical scheme, the arc plate can be limited by the arc plate sleeve, and the spring elastic deformation capacity is used to adjust the tensioning force of the crossheading belt, so as to avoid that the transmission stability is poor due to the sudden increase or decrease of the tensioning force of the crossheading belt.

[0015] Further, the cross sections of the arc plate sleeve and the arc plate are arc-shaped, and the centers of the arc plate sleeve, the arc plate and the supporting arm and the tensioning wheel supporting plate rotating connection are on the same axis.

[0016] By adopting the technical scheme, the arc plate can move along the inner side of the arc plate sleeve, and the movement interference between the arc plate and the arc plate sleeve is avoided.

[0017] The beneficial effects of the utility model are as follows:

[0018] The linkage mechanism is formed between the linkage plate, the supporting arm and the moving table, the supporting arm can be rotated when the moving table moves linearly, the relative position of the belt tensioning wheel and the crossheading belt is controlled, the crossheading belt is pressed to a certain depth after the position of the belt tensioning wheel is changed, the tensioning force of the crossheading belt is adjusted, the tensioner is simple and convenient to operate.

[0019] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0021] Figure 1 is a structural schematic view of an embodiment of the present application;

[0022] Figure 2 is a partial sectional view of an embodiment of the present application;

[0023] Figure 3 is a sectional view of an arc plate sleeve of an embodiment of the present application;

[0024] Figure 4 is a schematic view of a support and ball screw cooperation structure of an embodiment of the present application;

[0025] Reference signs: 1, support; 2, support arm; 3, tension adjusting assembly; 31, ball screw; 32, moving table; 33, fixed block one; 34, fixed block two; 35, linkage plate; 4, tension wheel support plate; 5, reinforced connecting column; 6, belt tension wheel; 7, arc plate sleeve; 8, arc plate; 9, spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the technical scheme of the present application more clear, the following will combine the drawings of the specific embodiments of the present application to make a clear and complete description of the technical scheme of the embodiments of the present application. The same reference signs in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0027] Reference Figure 1 , Figure 2 and Figure 4The utility model discloses a kind of tensioner for crossheading belt, including support 1, support 1's inner side wall is rotatably connected with support arm 2, and the inside of support 1 is rotatably connected with ball screw 31 in tension force adjusting assembly 3, the inside bottom of support 1 is close to the position of the upper position of ball screw 31 and is provided with through slot, one end of ball screw 31 is located at the outside of support 1, and one end of ball screw 31 is provided with hand wheel at the position of support 1 outside, nut seat on ball screw 31 is fixedly connected with moving platform 32 by screw, the fixed position on the linear movement of moving platform 32 can be guaranteed by the self-locking ability of ball screw 31, moving platform 32 and support 1 are slidably connected by sliding block and sliding slot, the stability of linear movement and the stability of linear motion track of moving platform 32 are guaranteed by sliding connection, the top of moving platform 32 is symmetrically welded with two fixed blocks one 33, the outside wall of support arm 2 is symmetrically welded with two fixed blocks two 34 at the position of the upper position of moving platform 32 side, two fixed blocks one 33 and two fixed blocks two 34 are rotatably connected with linkage plate 35, four rotation shafts are symmetrically provided on the outside wall of linkage plate 35, four rotation shafts are respectively threaded through two fixed blocks one 33 and two fixed blocks two 34, linkage plate 35 achieves the purpose of movable connection, and the adjustment of the inclination angle of support arm 2 is realized by the change on the upper end position of linkage plate 35, two tensioner support plates 4 are rotatably connected with the outside wall of fixed block two 34 adjacent to support arm 2, reinforcing connecting column 5 is fixedly arranged between two tensioner support plates 4, and belt tensioner 6 is rotatably connected between two tensioner support plates 4 at the position of the upper position of reinforcing connecting column 5 side, the crossheading belt is contacted and extruded by belt tensioner 6, while being guided in transmission, the extrusion degree of crossheading belt by belt tensioner 6 is used to achieve the purpose of controlling the tension of crossheading belt.

[0028] The utility model discloses a kind of tensioner for crossheading belt, including support 1, support 1's inner side wall is rotatably connected with support arm 2, and the inside of support 1 is rotatably connected with ball screw 31 in tension force adjusting assembly 3, the inside bottom of support 1 is close to the position of the upper position of ball screw 31 and is provided with through slot, one end of ball screw 31 is located at the outside of support 1, and one end of ball screw 31 is provided with hand wheel at the position of support 1 outside, nut seat on ball screw 31 is fixedly connected with moving platform 32 by screw, the fixed position on the linear movement of moving platform 32 can be guaranteed by the self-locking ability of ball screw 31, moving platform 32 and support 1 are slidably connected by sliding block and sliding slot, the stability of linear movement and the stability of linear motion track of moving platform 32 are guaranteed by sliding connection, the top of moving platform 32 is symmetrically welded with two fixed blocks one 33, the outside wall of support arm 2 is symmetrically welded with two fixed blocks two 34 at the position of the upper position of moving platform 32 side, two fixed blocks one 33 and two fixed blocks two 34 are rotatably connected with linkage plate 35, four rotation shafts are symmetrically provided on the outside wall of linkage plate 35, four rotation shafts are respectively threaded through two fixed blocks one 33 and two fixed blocks two 34, linkage plate 35 achieves the purpose of movable connection, and the adjustment of the inclination angle of support arm 2 is realized by the change on the upper end position of linkage plate 35, two tensioner support plates 4 are rotatably connected with the outside wall of fixed block two 34 adjacent to support arm 2, reinforcing connecting column 5 is fixedly arranged between two tensioner support plates 4, and belt tensioner 6 is rotatably connected between two tensioner support plates 4 at the position of the upper position of reinforcing connecting column 5 side, the crossheading belt is contacted and extruded by belt tensioner 6, while being guided in transmission, the extrusion degree of crossheading belt by belt tensioner 6 is used to achieve the purpose of controlling the tension of crossheading belt.

[0029] In the further preferred embodiment of the utility model, Figures 1-3As shown, the outer side wall of the support arm 2 is welded with a circular arc plate sleeve 7 near the upper position of the fixed block two 34, the outer side wall of the reinforcing connecting column 5 is welded with a circular arc plate 8, the inner side wall of the circular arc plate sleeve 7 is fixedly provided with a spring 9, one side end of the circular arc plate 8 is located in the interior of the circular arc plate sleeve 7, and the one side end of the circular arc plate 8 and one end of the spring 9 are fixedly connected, the cross sections of the circular arc plate sleeve 7 and the circular arc plate 8 are all circular arc shapes, and the center of the circular arc plate sleeve 7, the center of the circular arc plate 8 and the center of the rotating connection between the support arm 2 and the tension wheel support plate 4 are all on the same axis, so that the circular arc plate 8 moves along the inner side of the circular arc plate sleeve 7, and the moving interference between the circular arc plate 8 and the circular arc plate sleeve 7 is avoided;

[0030] The embodiment is specific as follows: when the belt tension wheel 6 extrudes the trough belt, under the action of the reaction force of the trough belt, the reaction force on the belt tension wheel 6 makes the tension wheel support plate 4 close to the support arm 2, at this time, the circular arc plate 8 on the reinforcing connecting column 5 moves to the deep interior of the circular arc plate sleeve 7, the spring 9 is compressed under force, the elastic deformation force of the spring 9 is used to absorb the reaction force on the belt tension wheel 6, and the belt tension wheel 6 is kept extruding the trough belt all the time, so that the problem of slippage or even breakage of the trough belt due to the sudden change of the tension force in the transmission process is avoided, and the trough belt is better protected.

[0031] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tensioner for a roadway belt, characterized in that: Includes a support (1); The support arm (2) rotates on the inner wall of the bracket (1); and Tension adjustment assembly (3) provided on the bracket (1) and support arm (2); The tension adjustment component (3) includes: A ball screw (31) that rotates inside the bracket (1); The movable stage (32) is fixed to the nut seat on the ball screw (31) by screws; Two fixing blocks (33) are symmetrically welded to the top of the moving platform (32); Two fixing blocks (34) are symmetrically welded to the outer wall of the support arm (2) at a position above the side near the moving platform (32); A linkage plate (35) is rotatably connected between the two fixed blocks (33) and the two fixed blocks (34); Two tensioning wheel support plates (4) symmetrically rotate on the outer side wall of the support arm (2); A reinforcing connecting column (5) welded between the two tensioning wheel support plates (4); and The belt tensioning pulley (6) rotates between the two tensioning pulley support plates (4) and is located above the reinforcing connecting column (5); Arc plate sleeve (7) welded to the outer wall of the support arm (2); Arc plate (8) welded to the outer wall of the reinforcing connecting column (5); Spring (9) fixed to the inner wall of the arc plate sleeve (7).

2. A tensioner for a roadway belt according to claim 1, characterized in that: A through groove is provided at the bottom of the bracket (1) near the upper part of the ball screw (31), and one end of the ball screw (31) is located on the outside of the bracket (1).

3. A tensioner for a roadway belt according to claim 1, characterized in that: The mobile platform (32) and the support (1) are slidably connected by a slider and a groove.

4. A tensioner for a roadway belt according to claim 1, characterized in that: Four rotating shafts are symmetrically arranged on the outer side wall of the linkage plate (35), and the four rotating shafts pass through two fixing blocks one (33) and two fixing blocks two (34) respectively.

5. A tensioner for a roadway belt according to claim 1, characterized in that: One end of the arc plate (8) is located inside the arc plate sleeve (7), and one end of the arc plate (8) is fixedly connected to one end of the spring (9).

6. A tensioner for a roadway belt according to claim 1, characterized in that: The cross-sections of the arc plate sleeve (7) and the arc plate (8) are both arc-shaped, and the center of the arc plate sleeve (7), the center of the arc plate (8), and the center of the support arm (2) and the tension wheel support plate (4) are all on the same axis.

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