Synchronous tooth wedge belt tensioning device of flour mill

Abstract

The utility model discloses a flour mill synchronous tooth wedge belt tensioning device which comprises a locking structure and a tensioning structure which are arranged on a fixed base, the fixed base is fixed on the side face of a flour mill wall plate through a plurality of bolt rods, a transmission wheel and a tensioning wheel are located on the same plane, the locking structure comprises a locking sleeve arranged on the side face of the fixed base, and the locking sleeve is connected with the tensioning wheel. One end of an eccentric shaft is inserted into the locking sleeve, and the other end of the eccentric shaft extends out of the locking sleeve; the tensioning structure comprises a rolling bearing arranged on the peripheral side face of the other end of the eccentric shaft, the peripheral side face of the rolling bearing is connected with a tensioning wheel, and the peripheral side face of the tensioning wheel is tightly attached to the synchronous tooth wedge belt. The eccentric shaft is manually rotated through the movable stress application handle, and the relative angle between the eccentric shaft and the locking sleeve is adjusted, so that the tensioning degree of the synchronous tooth wedge belt between the fast roller transmission wheel and the slow roller transmission wheel is changed, and the use is more convenient; and a plurality of straight grooves are formed in one side of the locking sleeve in an array manner, so that the external force applied by deformation of the locking sleeve can be reduced, and the locking connection between the locking sleeve and the eccentric shaft can be flexibly adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of grain processing equipment, in particular to a synchronous wedge belt tensioning device for a grinding mill. Background Art

[0002] The mill is the main equipment for making grain flour. Most existing roller mills use a three-wheel fixed speed transmission mechanism of fast and slow roller synchronous toothed wedge belt, namely, a fast roller drive wheel, a slow roller drive wheel, and a tensioning wheel. The drive belt forms a coplanar closed loop between the three wheels. If the synchronous toothed wedge belt cannot be effectively tensioned, it is easy to cause the synchronous toothed wedge belt to deviate and wear during operation, or even jump out of the retaining ring and tear and scrap. The patent number is "CN206965823U", and the patent name is "A double-wedge belt tensioning device for a mill". It is a utility model patent, including a driving roller pulley, a driven roller pulley, a tensioning pulley and an eccentric shaft. A double-wedge belt is provided between the driving roller pulley and the tensioning pulley. The double-wedge belt is a double-sided multi-wedge belt, which minimizes the wear of the belt, extends the service life of the whole machine, and reduces the cost.

[0003] However, the tensioning device still has certain disadvantages in certain usage situations: on the one hand, the overall structure of the tensioning device is not clear, and the locking sleeve in the tensioning device cannot flexibly adjust its locking connection with the eccentric shaft, which is inconvenient to use. Therefore, a synchronous wedge belt tensioning device for a grinding mill is proposed to solve the above defects. Summary of the invention

[0004] The utility model overcomes the shortcomings of the prior art and provides a synchronous wedge belt tensioning device for a grinding mill.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a synchronous wedge-belt tensioning device for a grinding mill, comprising: a fixed base and a locking structure and a tensioning structure arranged on the fixed base, the locking structure comprising: a locking sleeve arranged on the side of the fixed base, one end of an eccentric shaft is inserted into the locking sleeve, the other end of the eccentric shaft extends out of the locking sleeve, a plurality of straight grooves are arranged in an array on one side of the locking sleeve, and the straight grooves extend through the locking sleeve along the axial direction of the locking sleeve; the tensioning structure comprises: a rolling bearing arranged on the outer peripheral side of the other end of the eccentric shaft, the outer peripheral side of the rolling bearing is connected to a tensioning wheel, and the outer peripheral side of the tensioning wheel is in close contact with the synchronous wedge-belt.

[0006] In a preferred embodiment of the utility model, the eccentric shaft includes: a connecting portion and an adjusting disk integrally arranged at one end of the connecting portion, and a mounting groove is arranged at a side edge of the adjusting disk, and the mounting groove is rotatably connected to the mounting portion.

[0007] In a preferred embodiment of the utility model, a plurality of adjustment holes are arranged in an array on the outer peripheral side of the adjustment plate, and a movable force-adding handle is detachably provided at the position of the adjustment holes.

[0008] In a preferred embodiment of the utility model, the fixed base is fixed to the side of the grinding mill wallboard through a plurality of bolt rods, and the driving wheel and the tensioning wheel are on the same plane.

[0009] In a preferred embodiment of the present invention, a notch is provided on the outer peripheral side of the locking sleeve, the notch extends through the locking sleeve along the axial direction of the locking sleeve, and two sides of the notch are connected to each other by a plurality of locking screws.

[0010] In a preferred embodiment of the utility model, a matching gap is set between one side of the locking sleeve having a plurality of straight grooves arranged in an array and the fixed base.

[0011] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0012] (1) The utility model adjusts the relative angle between the eccentric shaft and the locking sleeve by manually rotating the eccentric shaft through a movable force-adding handle, thereby changing the tension of the synchronous toothed wedge belt between the fast roller transmission wheel and the slow roller transmission wheel, which is more convenient to use; and a plurality of straight grooves arranged in an array on one side of the locking sleeve can reduce the external force applied by the deformation of the locking sleeve, and can more flexibly adjust the structural form of the locking sleeve, thereby flexibly adjusting the locking connection with the eccentric shaft. On the other hand, the notch provided on the outer peripheral side of the locking sleeve facilitates the cooperation between the locking screw and the locking sleeve to lock the eccentric shaft, and the structural design is more reasonable and scientific. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 It is a three-dimensional structural diagram of a preferred embodiment of the utility model;

[0015] Figure 2 It is a plan view of a preferred embodiment of the utility model;

[0016] Figure 3 yes Figure 2 Schematic diagram of the cross section at AA in the middle;

[0017] Figure 4 It is a three-dimensional structural diagram of the eccentric shaft of the preferred embodiment of the utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the preferred embodiment of the utility model after the eccentric shaft has hidden assembly parts;

[0019] Figure 6It is a three-dimensional structural diagram of a grinding machine according to a preferred embodiment of the utility model.

[0020] Specifically, 1. fixed base; 2. locking sleeve; 3. eccentric shaft; 301. connecting part; 302. adjusting disk; 303. assembly groove; 304. assembly part; 305. adjustment hole; 4. straight groove; 5. rolling bearing; 6. tensioning wheel; 7. synchronous wedge belt; 8. movable force handle; 9. notch; 10. locking screw; 11. matching clearance; 12. grinding mill; 13. slow roller transmission wheel; 14. fast roller transmission wheel. DETAILED DESCRIPTION

[0021] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] like Figure 1 , Figure 3 and Figure 6 As shown, a synchronous wedge-belt tensioning device for a grinding mill comprises: a fixed base 1 and a locking structure and a tensioning structure arranged on the fixed base 1, the fixed base 1 is fixed to the side of the wall panel of the grinding mill 12 by a plurality of bolt rods, and the driving wheel and the tensioning wheel 6 are in the same plane, the locking structure comprises: a locking sleeve 2 arranged on the side of the fixed base 1, one end of an eccentric shaft 3 is inserted into the locking sleeve 2, and the other end of the eccentric shaft 3 extends out of the locking sleeve 2; the tensioning structure comprises: a rolling bearing 5 arranged on the outer peripheral side of the other end of the eccentric shaft 3, the outer peripheral side of the rolling bearing 5 is connected to the tensioning wheel 6, and the outer peripheral side of the tensioning wheel 6 is in close contact with the synchronous wedge-belt 7.

[0023] like Figure 2 , Figure 4 and Figure 5 As shown, in a preferred embodiment of the utility model, a plurality of adjustment holes 305 are arranged in an array on the outer peripheral side surface of the adjustment disk 302, and a movable force-adding handle 8 is detachably provided at the position of the adjustment hole 305. The eccentric shaft 3 comprises: a connecting portion 301 and an adjustment disk 302 integrally provided at one end of the connecting portion 301, and an assembly groove 303 is provided at the side edge of the adjustment disk 302. The assembly groove 303 is rotatably connected to the assembly portion 304. The eccentric shaft 3 is manually rotated by the movable force-adding handle 8 to adjust the relative angle between the eccentric shaft 3 and the locking sleeve 2, thereby changing the tension of the synchronous toothed wedge belt 7 between the fast roller transmission wheel 14 and the slow roller transmission wheel 13, which is more convenient to use.

[0024] In a preferred embodiment of the utility model, a plurality of straight grooves 4 are arranged in an array on one side of the locking sleeve 2, and the straight grooves 4 extend through the locking sleeve 2 along the axial direction of the locking sleeve 2, and a matching gap 11 is set between the locking sleeve 2 on the side where the plurality of straight grooves 4 are arranged in an array and the fixed base 1. By arranging the plurality of straight grooves 4 in an array on one side of the locking sleeve 2, the external force applied by the deformation of the locking sleeve 2 can be reduced, and the structural form of the locking sleeve 2 can be adjusted more flexibly, thereby flexibly adjusting the locking connection between the locking sleeve 2 and the eccentric shaft 3.

[0025] In a preferred embodiment of the utility model, a notch 9 is provided on the outer peripheral side of the locking sleeve 2, and the notch 9 extends through the locking sleeve 2 along the axial direction of the locking sleeve 2, and the two sides of the notch 9 are connected to each other through a plurality of locking screws 10. The notch 9 provided on the outer peripheral side of the locking sleeve 2 facilitates the locking screws 10 to cooperate with the locking sleeve 2 to lock the eccentric shaft 3, and the structural design is more reasonable and scientific.

[0026] The working principle of the utility model is as follows: the fixed base 1 is fixed to the side of the wall panel of the grinding mill 12 by a plurality of bolt rods, the lower part of the locking sleeve 2 is fixedly welded to the side of the fixed base 1, the tensioning wheel 6 is connected to the locking sleeve 2 by the eccentric shaft 3, when the synchronous toothed wedge belt 7 between the fast roller driving wheel 14 and the slow roller driving wheel 13 is loose, the locking screw 10 is removed, and the movable force adding handle 8 is inserted into the adjustment hole 305, and the adjusting disk 302 and the connecting part 301 are driven to rotate synchronously by the movable force adding handle 8, so that the tensioning wheel 6 gradually moves away from the fast roller driving wheel 14, and after the synchronous toothed wedge belt 7 is gradually tightened to a specified degree, the connecting part 301 is fixed by the locking screw 10.

[0027] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A synchronous wedge belt tensioning device for a grinding mill, comprising: A fixed base (1) and a locking structure and a tensioning structure arranged on the fixed base (1), characterized in that the locking structure comprises: a locking sleeve (2) arranged on a side of the fixed base (1), one end of an eccentric shaft (3) being inserted into the locking sleeve (2), the other end of the eccentric shaft (3) extending out of the locking sleeve (2), a plurality of straight grooves (4) being arranged in an array on one side of the locking sleeve (2), the straight grooves (4) extending along the axial direction of the locking sleeve (2) and penetrating the locking sleeve (2); the tensioning structure comprises: a rolling bearing (5) arranged on the outer peripheral side of the other end of the eccentric shaft (3), the outer peripheral side of the rolling bearing (5) being connected to a tensioning wheel (6), the outer peripheral side of the tensioning wheel (6) being in close contact with a synchronous wedge belt (7).

2. A grinding mill synchronous wedge belt tensioning device according to claim 1, characterized in that: The eccentric shaft (3) comprises: a connecting portion (301) and an adjusting disk (302) integrally arranged at one end of the connecting portion (301); a mounting groove (303) is arranged at a side edge of the adjusting disk (302); and the mounting groove (303) is rotatably connected to the mounting portion (304).

3. A grinding mill synchronous wedge belt tensioning device according to claim 2, characterized in that: A plurality of adjustment holes (305) are arranged in an array on the outer peripheral side surface of the adjustment disk (302), and a movable force-adding handle (8) is detachably provided at the position of the adjustment hole (305).

4. A grinding mill synchronous wedge belt tensioning device according to claim 1, characterized in that: The fixed base (1) is fixed to the side of the wallboard of the grinding mill (12) by means of a plurality of bolt rods, and the driving wheel and the tensioning wheel (6) are located on the same plane.

5. A grinding mill synchronous wedge belt tensioning device according to claim 1, characterized in that: A notch (9) is provided on the outer peripheral side of the locking sleeve (2), the notch (9) extending along the axial direction of the locking sleeve (2) and penetrating the locking sleeve (2), and two sides of the notch (9) are connected to each other via a plurality of locking screws (10).

6. A grinding mill synchronous wedge belt tensioning device according to claim 1, characterized in that: A matching gap (11) is provided between one side of the locking sleeve (2) on which a plurality of straight grooves (4) are arranged in an array and the fixed base (1).

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