Belt pulley assembly
By introducing the guide assembly and the adjustment assembly into the pulley assembly, the wear problem caused by the deviation of the pulley center plane is solved, the center alignment and lubrication protection of the belt are achieved, and the service life and stability of the pulley are improved.
Patent Information
- Application Number
- CN202422743160.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The deviation of the center planes of the driving wheel and the driven wheel of the existing pulley leads to problems of belt wear and bracket damage.
A pulley assembly is designed, which includes a guide assembly and an adjustment assembly. The guide part and the guide pulley are used to adapt to the belt position. The position and angle of the guide part are adjusted by the adjustment part. Combined with the lubrication effect of the graphite copper pad, the center alignment and protection of the belt are achieved.
It effectively reduces belt wear and bracket damage, and increases the service life and operating stability of the pulley.
Smart Images
Figure CN223318381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pulleys, in particular to a pulley assembly. Background Art
[0002] Pulleys are mainly used in situations where power is transmitted over long distances, such as the output of power from small diesel engines, agricultural vehicles, tractors, automobiles, mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathes, forging machines, the transmission of power from some small horsepower motorcycles, the transmission of power from agricultural machinery, air compressors, reducers, speed reducers, generators, cotton gins, etc.
[0003] When the center planes of the driving wheel and the driven wheel of the existing pulley deviate, it will cause one side of the belt to rub against the pulley bracket, resulting in accelerated wear of the belt and damage to the bracket. The pulley bracket needs to be adjusted to avoid excessive damage to the belt and bracket. Utility Model Content
[0004] The utility model provides a pulley assembly to solve the shortcomings of the prior art that when the center planes of the driving pulley and the driven pulley deviate, the belt is easily damaged and the pulley support is damaged by the pulley.
[0005] In order to solve the above technical problems, the present invention solves them through the following technical solutions: a pulley assembly, comprising a pulley and a pulley bracket, the pulley bracket is provided with a guide assembly and an adjustment assembly, the guide assembly includes a guide member, the guide member can abut against one side of the belt, and at least one guide member is provided on each side of the belt, the adjustment assembly includes an adjustment member, the adjustment member is connected to the guide member, and the adjustment member can be used to drive the guide member to move toward or away from the belt.
[0006] Furthermore, the guide assembly further includes a guide wheel, the guide wheel abuts against the belt, and the guide wheel is used for belt guiding.
[0007] Furthermore, the guide assembly also includes a guide bracket, the guide bracket is pivotally connected to the pulley bracket, the guide wheel is rotatably connected to the guide bracket, and the pulley bracket is provided with a tensioning assembly, and the tensioning assembly drives the guide bracket to rotate around its pivot.
[0008] Furthermore, the guide wheel is annular and has a self-aligning ball bearing on its inner ring, and the self-aligning ball bearing is rotatably connected to the guide bracket.
[0009] Furthermore, the adjusting member is provided with a slope surface abutting against the guide member. The movement of the adjusting member can drive different positions of the slope surface to abut against the guide member. When the guide member moves from the lower part of the slope surface toward the higher part of the slope surface, the distance that the guide member pushes the belt is set from short to long.
[0010] Furthermore, one side of the guide member is pivotally connected to the guide bracket, and the guide member is moved toward or away from the belt at a side away from the pivotal connection and is controlled by the adjusting member.
[0011] Furthermore, a tension spring is provided on the side of the guide member away from the pivotal joint, and the tension spring drives the side of the guide member away from the pivotal joint to always move in a direction away from the belt.
[0012] Furthermore, the tensioning assembly includes an adjusting screw 2 and an adjusting nut, the adjusting nut is connected to the pulley bracket, the adjusting screw 2 is threadedly connected to the adjusting nut, one end of the adjusting screw abuts against the guide bracket, and the thread adjustment of the adjusting screw 2 can be used to limit the extreme rotation position of the guide bracket.
[0013] Furthermore, the pulley bracket is provided with a limiting member, and the limiting member can be used to limit the rotation angle of the guide bracket.
[0014] Furthermore, a graphite copper pad is detachably connected to the guide member on the side facing the belt.
[0015] Due to the adoption of the above technical solutions, the utility model has significant technical effects: the guide member can be used to correct the left and right deviation of the belt, the guide wheel is used for belt guidance, the guide wheel adopts a self-aligning ball bearing, so that it can adapt to the slight flake of the belt, and the angle of the adjusting member can be adjusted to drive the belt to be located in the center plane of the pulley, and the graphite copper pad also has a lubricating effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of a pulley assembly;
[0017] Figure 2 It is an overall cross-sectional view of a pulley assembly;
[0018] Figure 3 yes Figure 2 A partial enlarged schematic diagram in the middle;
[0019] Figure 4 It is a schematic diagram of the guide component structure.
[0020] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Pulley; 2. Pulley bracket; 3. Guide assembly; 31. Guide bracket; 32. Guide member; 33. Guide wheel; 34. Self-aligning ball bearing; 4. Tensioning assembly; 41. Adjusting screw 2; 42. Adjusting screw sleeve; 5. Adjusting assembly; 51. Adjusting member; 511. Slope surface; 52. Adjusting screw 1; 53. Slide; 61. Tension spring; 71. Graphite copper pad; 81. Limiting member. DETAILED DESCRIPTION
[0021] The present invention is described in further detail below with reference to the accompanying drawings and embodiments.
[0022] Example:
[0023] A pulley assembly, see Figure 1 , including a pulley 1 and a pulley bracket 2. The pulley bracket 2 is provided with a guide component 3 and a tensioning component 4. The guide component 3 is used for correcting and guiding the belt, and the tensioning component 4 is used to drive the guide component 3 to tension the belt.
[0024] See also Figures 2 to 4 The guide assembly 3 includes a guide bracket 31, a guide member 32 and an annular guide wheel 33. The pulley bracket 2 is provided with two pieces. The pulley 1 and the guide assembly 3 are both located between the two pulley brackets 2. The guide bracket 31 is I-shaped, and the guide wheel 33 is annular and located between the I-shape of the guide bracket 31. The guide bracket 31 is pivotally connected to the pulley bracket 2. The guide bracket 31 is clamped with an optical axis for supporting the pulley 1. The inner ring of the guide wheel 33 is provided with a self-aligning ball bearing 34. The inner and outer rings of the self-aligning ball bearing 34 are interference-fitted with the optical axis and the inner ring of the guide wheel 33 respectively. The guide member 32 is a long sheet structure, and one side of the guide wheel 33 is pivotally connected to the guide bracket 31. At least one guide member 32 is provided on each side of the guide wheel 33, and two guide pieces are located on both sides of the belt at the same time.
[0025] See also Figure 4The guide bracket 31 is provided with an adjustment component 5 for adjusting the position of the guide member 32. The adjustment component 5 includes an adjustment member 51 and an adjustment screw 52 that drives the adjustment member 51 to move. The guide bracket 31 is provided with a slide groove 53 for the adjustment member 51 to slide. The adjustment member 51 and the guide member 32 are away from the side of the guide wheel 33 and the adjustment member 51 and the guide member 32 are away from one end of the pivot joint. The adjustment member 51 is block-shaped and is provided with a slope surface 511 toward the guide member 32. The slope surface 511 is abutted against the guide member 32. The guide member 32 can be pushed away from different distances by the slope surface 511. The adjustment screw 52 is threadedly connected to the guide bracket 31. One end of the adjustment screw 52 is rotatably connected to the adjustment member 51. The knife can rotate the adjusting screw 52, and rotating the adjusting screw 52 can drive the adjusting member 51 to move along the slide groove 53. When the adjusting member 51 is controlled by the adjusting screw 52 to move toward the pivot direction of the guide member 32, the guide member 32 is moved away from the pivot end thereof toward the guide wheel 33. When the adjusting member 51 is controlled by the adjusting screw 52 to move away from the pivot direction of the guide member 32, the guide member 32 is moved away from the pivot end thereof toward the guide wheel 33. When the guide member 32 moves from the lowest point of the slope surface 511 toward the highest point of the slope surface 511, the distance that the guide member 32 pushes the belt changes from short to long, so that the belt can be adjusted to be close to or aligned with the center of the pulley 1.
[0026] A tension spring 61 is provided on the side of the guide member 32 away from the pivot joint, and the two ends of the tension spring 61 are respectively connected to the guide member 32 and the guide frame body. The tension spring 61 drives the guide member 32 away from the pivot joint to always move in the direction of the belt. The guide member 32 is connected to the guide wheel 33 side by a screw thread with a graphite copper pad 71. The graphite copper pad 71 can abut against the pulley 1. The graphite copper pad 71 and the guide member 32 are detachably connected. When the graphite copper pad 71 is excessively worn, it can be replaced.
[0027] The tensioning assembly 4 includes an adjusting screw 2 41 and an adjusting screw sleeve 42. The adjusting screw sleeve 42 is a tubular structure with an internal thread. The adjusting screw sleeve 42 is welded to the pulley bracket 2. The adjusting screw 2 41 is threadedly connected to the adjusting screw sleeve 42. One end of the adjusting screw 2 41 is abutted against the side of the guide bracket 31. The adjusting screw 2 41 can be rotated by a screwdriver to drive the adjusting screw 2 41 to extend out of the adjusting screw sleeve 42 to different lengths, thereby pushing the guide bracket 31 to rotate around its pivot point. The adjusting screw 2 41 extends out of the adjusting screw to different lengths, thereby limiting the extreme rotation position of the guide bracket 31, thereby pushing the guide wheel 33 to a certain tensioning state relative to the belt. A limit member 81 is convexly provided on the pulley bracket 2. The limit member 81 can be used for the rotation angle of the guide bracket 31 around its pivot point, thereby avoiding excessive tension.
Claims
1. A pulley assembly comprising a pulley (1) and a pulley support (2), characterized in that: The pulley bracket (2) is provided with a guide assembly (3) and an adjustment assembly (5), wherein the guide assembly (3) includes a guide member (32), wherein the guide member (32) can abut against one side of the belt, and at least one guide member (32) is provided on each side of the belt, and the adjustment assembly (5) includes an adjustment member (51) and an adjustment screw (52) for driving the adjustment member (51) to move, wherein the adjustment member (51) is connected to the guide member (32), and the adjustment member (51) can be used to drive the guide member (32) to move toward or away from the belt.
2. A pulley assembly according to claim 1, characterized in that: The guide assembly (3) further comprises a guide wheel (33), the guide wheel (33) abuts against the belt, and the guide wheel (33) is used for belt guiding.
3. A pulley assembly according to claim 2, characterized in that: The guide assembly (3) further comprises a guide bracket (31), the guide bracket (31) being pivotally connected to the pulley bracket (2), the guide wheel (33) being rotatably connected to the guide bracket (31), the pulley bracket (2) being provided with a tensioning assembly (4), the tensioning assembly (4) driving the guide bracket (31) to rotate around its pivot.
4. A pulley assembly according to claim 3, characterized in that: The guide wheel (33) is annular and has a self-aligning ball bearing (34) on its inner ring. The self-aligning ball bearing (34) is rotatably connected to the guide bracket (31).
5. A pulley assembly according to claim 3, characterized in that: The adjusting member (51) is provided with a slope surface (511) that abuts against the guide member (32). The adjusting member (51) moves to drive different positions of the slope surface (511) to abut against the guide member (32). When the guide member (32) moves from a lower position of the slope surface (511) toward a higher position of the slope surface (511), the distance that the guide member (32) pushes the belt is set from short to long.
6. A pulley assembly according to claim 3, characterized in that: One side of the guide member (32) is pivotally connected to the guide bracket (31), and the guide member (32) is controlled by the adjusting member (51) to move toward or away from the belt away from the pivoting side.
7. A pulley assembly according to claim 3, characterized in that: A tension spring (61) is provided on the side of the guide member (32) away from the pivot joint, and the tension spring (61) drives the side of the guide member (32) away from the pivot joint to always move away from the belt direction.
8. A pulley assembly according to claim 3, characterized in that: The tensioning assembly (4) comprises an adjusting screw (41) and an adjusting screw sleeve (42), wherein the adjusting screw sleeve (42) is connected to the pulley bracket (2), the adjusting screw (41) is threadedly connected to the adjusting screw sleeve (42), and one end of the adjusting screw (52) abuts against the guide bracket (31), and the thread adjustment of the adjusting screw (41) can be used to limit the extreme rotation position of the guide bracket (31).
9. A pulley assembly according to claim 8, characterized in that: The pulley bracket (2) is provided with a limiting member (81), and the limiting member (81) can be used to limit the rotation angle of the guide bracket (31).
10. The pulley assembly according to claim 1, characterized in that: The guide member (32) is detachably connected to a graphite copper pad (71) on one side facing the belt.