Bicycle ring adjusting table

Abstract

The utility model discloses a bicycle ring adjusting table which comprises a bottom plate, the bottom plate is connected with a supporting base assembly through a positioning pin, the supporting base assembly is fixedly provided with a hub supporting assembly, the bottom plate is connected with a connecting seat structure through a positioning pin, the connecting seat structure is fixedly connected with a turning point rod, and the turning point rod is fixedly connected with the hub supporting assembly. One end of the turning point rod is fixedly connected with a detection arm assembly, the detection arm assembly is provided with a radial run-out detection dial indicator assembly, and one side of the detection arm assembly is connected with an axial run-out detection dial indicator assembly through a connecting rod; positioning pins are arranged among the left fixing seat, the central fixing seat, the connecting seat structure and the base for positioning connection, so that accurate positioning is realized, and mounting errors caused by assembly are reduced; positioning fine-tuning holes are formed in the left fixing seat and the right fixing seat, and a shaft rod positioning fine-tuning hole and a jackscrew are arranged on the central fixing seat, so that the position of the upper shaft rod can be finely tuned, and the problem of large shaking frame quantity of the stand column caused by a gap between a linear bearing and the shaft rod is solved.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, specifically to a bicycle caddy. Background Technology

[0002] A bicycle wheelset mainly consists of five parts: hub, spokes, rim, inner tube, and outer tire. The rim and hub are only connected and supported by the spokes, but they need to be aligned and concentric, so it is difficult to adjust and a rim adjuster is required.

[0003] Currently, there are many types of aligning stations on the market, but many products suffer from low aligning accuracy, cumbersome operation, inconvenient use, time-consuming and labor-intensive operation, and poor aligning effect due to structural defects, low processing precision, and imprecise assembly. Utility Model Content

[0004] The purpose of this invention is to provide an X-ray bull's head structure that keeps the operating page stationary, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bicycle rim adjuster, comprising a base plate, a support base assembly connected to the base plate via a positioning pin, a wheel hub support assembly fixedly mounted on the support base assembly, a connecting seat structure connected to the base plate via a positioning pin, a pivot rod fixedly connected to the connecting seat structure, a detection arm assembly fixedly connected to one end of the pivot rod, a radial runout detection dial indicator assembly mounted on the detection arm assembly, an axial runout detection dial indicator assembly connected to one side of the detection arm assembly via a connecting rod, and a disc brake pad runout detection dial indicator assembly connected to the wheel hub support assembly via a connecting rod.

[0006] In a preferred embodiment, the upper surface of the base plate is provided with a parts placement groove, a magnet is fixedly connected to the bottom surface of the base plate, a semi-circular arc clearance groove is provided on one side of the base plate, and a rubber pad is provided on the bottom surface of the base plate.

[0007] In a preferred embodiment, the support base assembly includes a left fixed seat and a right fixed seat. A lower shaft and an upper shaft are fixedly connected between the left and right fixed seats. A bidirectional trapezoidal screw with positive and negative threads is rotatably connected between the left and right fixed seats, with a linear bearing on both the lower and upper shafts. A handwheel is fixedly connected to one end of the bidirectional trapezoidal screw. A central fixed seat is provided between the left and right fixed seats. A hub support assembly is symmetrically connected to both sides of the central fixed seat through bearing fixing sleeves. Positioning fine-tuning holes are provided on the left, right, and central fixed seats. A set screw is provided on the central fixed seat.

[0008] In a preferred embodiment, the hub support assembly includes columns arranged symmetrically, a V-groove on the top of the column, a V-shaped clamping block fixedly connected to the V-groove, a V-shaped clamping block having a V-groove, and a fixing bolt at one end of the V-groove.

[0009] In a preferred embodiment, the connecting seat structure includes a rotating support seat and a fixed support seat. A pivot shaft is fixedly connected between the rotating support seats. A pivot torsion spring is provided on the pivot shaft. The pivot torsion spring is fixedly connected to a pivot connecting rod. A knob top rod is threadedly connected to the fixed support seat. One end of the knob top rod contacts the pivot connecting rod. The end of the pivot connecting rod away from the knob top rod is fixedly connected to the pivot rod. A spring sheet assembly and a DU self-lubricating bearing are sleeved on the pivot shaft.

[0010] In a preferred embodiment, the detection arm assembly includes an adapter seat, which is connected to the detection arm via a torsion spring. An adjusting rod is provided at the end of the adapter seat away from the detection arm, and one end of the adjusting rod passes through the connection between the adapter seat and the detection arm. A T-shaped groove is provided on the adapter seat, and a plastic sleeve is connected to the end of the detection arm away from the adapter seat via an interference fit.

[0011] In a preferred embodiment, the radial runout detection dial indicator assembly includes a slider, which is slidably connected to a T-shaped groove. A dial indicator base is fixedly connected to the slider, and the dial indicator base has a strip-shaped hole with a locking screw. A radial runout dial indicator is fixedly connected to one end of the dial indicator base, and a connecting seat is provided at the detection end of the radial runout dial indicator. A roller is rotatably connected to the connecting seat.

[0012] In a preferred embodiment, the axial runout detection dial indicator assembly and the disc brake pad runout detection dial indicator assembly have the same structure. Both the axial runout detection dial indicator assembly and the disc brake pad runout detection dial indicator assembly include a dial indicator. The detection end of the dial indicator is fixedly connected to a roller seat, and a roller is rotatably connected to the roller seat.

[0013] 1. Compared with the prior art, the beneficial effects of this utility model are as follows: A parts placement slot is directly set on the base plate, which is convenient for placing small parts and making it easy to use; a magnet is set on the bottom surface of the base plate, which can attract some magnetic tools and parts through magnetism, making it convenient for them to be placed and used, and they are not easy to fall off; a semi-circular arc clearance groove is set on the base, which gives the hand more room to move when rotating the handwheel, making it more comfortable to use; a rubber pad is set under the base, which can reduce the friction noise generated by movement and make the product more stable.

[0014] 2. Positioning pins are used to connect the left fixed seat, center fixed seat, connecting seat, and base for precise positioning, reducing installation errors caused by assembly. The left and right fixed seats have positioning fine-tuning holes, and the center fixed seat has shaft positioning fine-tuning holes and set screws, allowing for fine-tuning of the upper shaft position and reducing excessive column wobbling caused by the gap between the linear bearing and the shaft. A double-sided trapezoidal screw with coarse threads, large pitch, and good smoothness is used, enabling faster column movement, improving work efficiency, and increasing wear resistance and product lifespan.

[0015] 3. The double V-groove structure and fixing screws on the V-shaped clamp at the upper end of the column can fix the hub shaft and prevent it from loosening and shifting, thus affecting the wheel rim adjustment effect;

[0016] 4. The connecting seat structure is equipped with a spring plate group, which allows the pivot connecting rod to be finely adjusted in the lateral position. This can correct the misalignment of the symmetry plane of the detection arm and V-shaped clamp caused by processing, assembly and material deformation, thus improving the product precision. The DU self-lubricating bearing fits tightly with the pivot shaft with only a small gap, yet the pivot shaft can still rotate with lubrication, further improving the product precision. Because the surface coating of the DU self-lubricating bearing has good wear resistance and corrosion resistance, it also improves the service life of the product.

[0017] 5. The adapter is equipped with a horizontal T-shaped slide groove, which, together with the strip hole on the base, allows the dial indicator to move horizontally and vertically in parallel. This not only makes it convenient and quick to use, but also expands the dial indicator's movement range and detection range, thus improving product performance.

[0018] 6. The dial indicator pointer adopts a roller design, which changes the contact between the dial indicator and the wheel rim and disc brake pads from sliding friction to rolling friction. On the one hand, it can reduce the noise generated by the friction between the dial indicator and the wheel rim, and on the other hand, it can protect the wheel rim and dial indicator from friction damage, thus improving product performance. Attached Figure Description

[0019] Figure 1 This utility model provides an overall structural schematic diagram of a bicycle lap tuner;

[0020] Figure 2 A schematic diagram of the base plate structure of a bicycle lap tuner is provided for this utility model;

[0021] Figure 3 This utility model provides a schematic diagram of the support base assembly of a bicycle tuning stand;

[0022] Figure 4 This utility model provides a schematic diagram of the hub support assembly structure for a bicycle caliper.

[0023] Figure 5This utility model provides a schematic diagram of the connecting seat structure for a bicycle tuning stand.

[0024] Figure 6 This utility model provides a schematic diagram of the detection arm assembly structure for a bicycle lap tuner.

[0025] Figure 7 This utility model provides a schematic diagram of the radial runout detection dial indicator assembly for a bicycle caliper.

[0026] Figure 8 This utility model provides a schematic diagram of the position of the dial indicator component for detecting disc brake pad bounce on a bicycle caliper.

[0027] Legend: 1. Base plate; 11. Parts placement slot; 12. Semi-circular arc clearance slot; 2. Support base assembly; 21. Left fixed seat; 22. Right fixed seat; 23. Lower shaft; 24. Upper shaft; 25. Double-sided trapezoidal screw with positive and negative threads; 26. Linear bearing; 27. Handwheel; 28. Center fixed seat; 3. Hub support assembly; 31. Column; 32. V-groove; 33. V-shaped clamp; 4. Connecting seat structure; 41. Rotating support seat; 42. Rotating... 43. Rotary pivot shaft; 44. Rotary pivot torsion spring; 45. Rotary pivot connecting rod; 46. Fixed support base; 5. Rotary pivot rod; 6. Detection arm assembly; 61. Adapter base; 62. Detection arm; 63. Adjusting rod; 7. Radial runout detection dial indicator assembly; 71. Gauge base; 72. Locking screw; 73. Radial runout dial indicator; 74. Connecting base; 75. Roller; 8. Axial runout detection dial indicator assembly; 9. Disc brake pad runout detection dial indicator assembly. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Please refer to 1-8. One embodiment of this utility model is as follows: A bicycle rim adjuster includes a base plate 1. A support base assembly 2 is connected to the base plate 1 via a positioning pin. A wheel hub support assembly 3 is fixedly mounted on the support base assembly 2. A connecting seat structure 4 is connected to the base plate 1 via a positioning pin. A pivot rod 5 is fixedly connected to the connecting seat structure 4. A detection arm assembly 6 is fixedly connected to one end of the pivot rod 5. A radial runout detection dial indicator assembly 7 is mounted on the detection arm assembly 6. An axial runout detection dial indicator assembly 8 is connected to one side of the detection arm assembly 6 via a connecting rod. The wheel hub support assembly 3 is connected to a disc brake pad runout detection dial indicator assembly 9 via a connecting rod. The wheel assembly is fixedly supported by the wheel hub support assembly 3. Then, the radial runout detection dial indicator assembly 7, the axial runout detection dial indicator assembly 8, and the disc brake pad runout detection dial indicator assembly 9 are used to adjust and detect the wheel assembly.

[0030] The upper surface of the base plate 1 is provided with a parts placement groove 11. A magnet is fixedly connected to the bottom surface of the base plate 1. The magnet's magnetism is used to attract some parts. A semi-circular arc clearance groove 12 is provided on one side of the base plate 1, which provides a wider range of movement space for the hand when rotating the handwheel 27, making it more comfortable to use. A rubber pad is provided on the bottom surface of the base plate 1, which can reduce friction noise generated during movement and make the product more stable.

[0031] Support base assembly 2 includes a left fixed seat 21 and a right fixed seat 22. A lower shaft 23 and an upper shaft 24 are fixedly connected between the left fixed seat 21 and the right fixed seat 22. A bidirectional trapezoidal screw 25 with positive and negative threads is rotatably connected between the lower shaft 23 and the upper shaft 24 and the left fixed seat 21 and the right fixed seat 22. Linear bearings 26 are provided on both the lower shaft 23 and the upper shaft 24. A handwheel 27 is fixedly connected to one end of the bidirectional trapezoidal screw 25 with positive and negative threads. A central fixed seat 28 is provided between the left fixed seat 21 and the right fixed seat 22. The hub support assembly 3 is symmetrically connected to both sides of the central fixed seat 28 through bearing fixing sleeves. The left fixed seat 21, right fixed seat 22 and center fixed seat 28 are all provided with positioning fine adjustment holes. The center fixed seat 28 is provided with a set screw. Rotating the handwheel 27 drives the bidirectional trapezoidal screw 25 with positive and negative threads to rotate forward or reverse, so that the hub support assembly 3 moves synchronously. The bidirectional trapezoidal screw 25 with positive and negative threads has thick threads, large thread pitch and good smoothness, which can move the column 31 faster, improve work efficiency, and is more wear-resistant, thus improving the service life of the product. The positioning fine adjustment holes can fine adjust the position of the upper shaft 24, reducing the problem of large frame shaking of the column 31 caused by the gap between the linear bearing 26 and the shaft.

[0032] The wheel hub support assembly 3 includes a column 31, which is symmetrically arranged. The top of the column 31 is provided with a V-groove 32, and the V-groove 32 is fixedly connected to a V-shaped clamp 33. The V-shaped clamp 33 is provided with a V-groove, and a fixing bolt is provided at one end of the V-groove. The two sides of the wheel are clamped into the V-groove, and the wheel is fixed by the fixing bolt on the V-groove. This can fix the hub axle and prevent it from loosening and shifting, thus affecting the wheel rim adjustment effect.

[0033] The connecting seat structure 4 includes a rotating support seat 41 and a fixed support seat 45. A pivot shaft 42 is fixedly connected between the rotating support seats 41. A pivot torsion spring 43 is provided on the pivot shaft 42. The pivot torsion spring 43 is fixedly connected to a pivot connecting rod 44. The fixed support seat 45 is threadedly connected to a knob push rod 46. One end of the knob push rod 46 contacts the pivot connecting rod 44. During the rotation and forward movement of the knob push rod 46, it presses one end of the pivot connecting rod 44, causing the pivot connecting rod 44 to rotate. The end of the pivot connecting rod 44 away from the knob push rod 46 is fixedly connected to a pivot rod 5. A spring clip assembly and a DU self-lubricating bearing are fitted onto the pivot shaft 42. The spring clip assembly allows the pivot connecting rod to make fine adjustments in the lateral position, which can correct the misalignment of the symmetry plane of the detection arm 62 and the V-shaped clamp 33 caused by processing, assembly, or material deformation, thus improving product precision. The DU self-lubricating bearing fits tightly with the pivot shaft 42 with only a small gap, yet the pivot shaft 42 can still rotate with lubrication, further improving product precision. Because the surface coating of the DU self-lubricating bearing has good wear resistance and corrosion resistance, it also improves the service life of the product.

[0034] The detection arm assembly 6 includes an adapter 61, which is symmetrically connected to the detection arms 62 via torsion springs. An adjusting rod 63 is located at the end of the adapter 61 furthest from the detection arms 62. One end of the adjusting rod 63 passes through the connection point between the adapter 61 and the detection arms 62. The adapter 61 has a T-shaped groove. The end of the detection arms 62 furthest from the adapter 61 is connected to a plastic sleeve via an interference fit. Advancing the adjusting rod 63 pushes the two detection arms 62 together, increasing the distance between their front ends. This aligns the openings of the two detection arms 62 with the edge of the wheel rim. The wheel rim is rotated, and the distance between the rim edge and the two plastic sleeves is observed to be uniform. Any unevenness is adjusted accordingly until the entire rim is uniform, thus completing the coarse adjustment of the wheel rim.

[0035] The radial runout measuring dial indicator assembly 7 includes a slider 76, which is slidably connected to a T-shaped groove. A dial indicator base 71 is fixedly connected to the slider 76. The dial indicator base 71 has a strip-shaped hole with a locking screw 72. One end of the dial indicator base 71 is fixedly connected to a radial runout dial indicator 73. The measuring end of the radial runout dial indicator 73 has a connecting seat 74. A roller 75 is rotatably connected to the connecting seat 74. The roller 75 performs rolling friction, which can reduce the noise generated by the friction between the dial indicator and the wheel rim. On the other hand, it can also protect the wheel rim and the dial indicator from friction damage and improve product performance.

[0036] The axial runout detection dial indicator assembly 8 and the disc brake pad runout detection dial indicator assembly 9 have the same structure. Both the axial runout detection dial indicator assembly 8 and the disc brake pad runout detection dial indicator assembly 9 include a dial indicator. The detection end of the dial indicator is fixedly connected to the roller seat, and the roller seat is rotatably connected to the roller 75.

[0037] Working principle: Use it in 4 steps:

[0038] First, rotate the handwheel 27 to drive the double-sided trapezoidal screw 25 to rotate. At the same time, the column 31 moves closer or further away, and the V-shaped clamp 33 also moves accordingly. Adjust the handwheel 27 so that the V-shaped clamp 33 clamps both ends of the hub shaft. Rotate the fixing bolt to slightly press and fix the hub shaft to prevent it from loosening and shifting, which would affect the wheel adjustment effect.

[0039] The second step is to rotate the knob top rod 46 to push the pivot point connecting rod 44 to move, adjust the angle A of the pivot point rod 5, and the detection arm assembly 6, radial runout detection dial indicator assembly 7, and axial runout detection dial indicator assembly 8 will also rotate and move accordingly. Rotate the knob top rod 46 to make the plastic sleeve on the detection arm 62 at the same height as the wheel rim. Rotate the adjusting top rod 63 to adjust the distance between the plastic sleeves on the two detection arms 62 so that their openings are aligned with the edge of the wheel rim. Rotate the wheel rim and observe whether the distance between the edge of the wheel rim and the two plastic sleeves is uniform. Make corresponding adjustments where there is unevenness until the whole rim is uniform, which completes the coarse adjustment of the wheel rim.

[0040] The third step is to adjust the locking screw 72 on the radial runout measuring dial indicator assembly 7, move the radial runout dial indicator 73 so that the roller 75 rests on the outer circle of the wheel rim; adjust the axial runout measuring dial indicator assembly 8, move the dial indicator so that the roller 75 rests on the side of the wheel rim, rotate the wheel rim, observe the runout of the dial indicators of the radial runout measuring dial indicator 73 and the axial runout measuring dial indicator assembly 8, and make fine adjustments to the wheel hub until the runout of the two dial indicators is controlled within a reasonable range, thus completing the fine adjustment of the wheel rim;

[0041] The fourth step is to adjust the disc brake pad runout detection dial indicator assembly 9. Move the dial indicator so that the roller rests on the end face of the disc brake pad. Rotate the disc and observe the runout of the dial indicator assembly 9. Make fine adjustments to the disc until the runout of the dial indicator is controlled within a reasonable range, thus completing the fine adjustment of the disc.

Claims

1. A bicycle dishing stand comprising a base plate (1), characterised in that: The base plate (1) is connected to the support base assembly (2) by a positioning pin. The support base assembly (2) is fixedly provided with a wheel hub support assembly (3). The base plate (1) is connected to the connecting seat structure (4) by a positioning pin. The connecting seat structure (4) is fixedly connected with a pivot rod (5). One end of the pivot rod (5) is fixedly connected to a detection arm assembly (6). The detection arm assembly (6) is provided with a radial runout detection dial indicator assembly (7). One side of the detection arm assembly (6) is connected to an axial runout detection dial indicator assembly (8) by a connecting rod. The wheel hub support assembly (3) is connected to a disc brake pad runout detection dial indicator assembly (9) by a connecting rod.

2. A bicycle chain tensioner as defined in claim 1, wherein: The upper surface of the base plate (1) is provided with a parts placement groove (11), a magnet is fixedly connected to the bottom surface of the base plate (1), a semi-circular arc clearance groove (12) is provided on one side of the base plate (1), and a rubber pad is provided on the bottom surface of the base plate (1).

3. A bicycle chain tensioner as defined in claim 1, wherein: The support base assembly (2) includes a left fixed seat (21) and a right fixed seat (22). A lower shaft (23) and an upper shaft (24) are fixedly connected between the left fixed seat (21) and the right fixed seat (22). A bidirectional trapezoidal screw (25) with positive and negative threads is rotatably connected between the left fixed seat (21) and the right fixed seat (22) at the interval between the lower shaft (23) and the upper shaft (24). Both the lower shaft (23) and the upper shaft (24) are provided with straight... The bearing (26) is fixedly connected to a handwheel (27) at one end of the bidirectional trapezoidal screw (25) with positive and negative teeth. A central fixed seat (28) is provided between the left fixed seat (21) and the right fixed seat (22). The hub support assembly (3) is connected to both sides of the central fixed seat (28) through the bearing fixing sleeve. The left fixed seat (21), the right fixed seat (22) and the central fixed seat (28) are all provided with positioning fine adjustment holes. The central fixed seat (28) is provided with a set screw.

4. The bicycle chain tensioner of claim 1, wherein: The hub support assembly (3) includes a column (31) symmetrically arranged, a V-groove (32) on the top of the column (31), a V-shaped clamp (33) fixedly connected to the V-groove (32), a V-shaped groove on the V-shaped clamp (33), and a fixing bolt at one end of the V-shaped groove.

5. The bicycle chain tensioner of claim 1, wherein: The connecting seat structure (4) includes a rotating support seat (41) and a fixed support seat (45). A pivot shaft (42) is fixedly connected between the rotating support seats (41). A pivot torsion spring (43) is provided on the pivot shaft (42). The pivot torsion spring (43) is fixedly connected to a pivot connecting rod (44). The fixed support seat (45) is threadedly connected to a knob top rod (46). One end of the knob top rod (46) is in contact with the pivot connecting rod (44). The end of the pivot connecting rod (44) away from the knob top rod (46) is fixedly connected to a pivot rod (5). A spring sheet assembly and a DU self-lubricating bearing are sleeved on the pivot shaft (42).

6. A bicycle chain tensioner as defined in claim 1, wherein: The detection arm assembly (6) includes an adapter (61), which is connected to the detection arm (62) via a torsion spring. An adjusting rod (63) is provided at one end of the adapter (61) away from the detection arm (62). One end of the adjusting rod (63) passes through the connection between the adapter (61) and the detection arm (62) and contacts it. A T-shaped groove is provided on the adapter (61). A plastic sleeve is connected to the other end of the detection arm (62) away from the adapter (61) via an interference fit.

7. A bicycle chain tensioner as defined in claim 1, wherein: The radial runout detection dial indicator assembly (7) includes a slider (76), which is slidably connected to a T-shaped groove. A dial indicator base (71) is fixedly connected to the slider (76). The dial indicator base (71) has a strip hole and a locking screw (72) on the strip hole. A radial runout dial indicator (73) is fixedly connected to one end of the dial indicator base (71). A connecting seat (74) is provided at the detection end of the radial runout dial indicator (73). A roller (75) is rotatably connected to the connecting seat (74).

8. A bicycle chain tensioner as defined in claim 1, wherein: The axial runout detection dial indicator assembly (8) and the disc brake pad runout detection dial indicator assembly (9) have the same structure. Both the axial runout detection dial indicator assembly (8) and the disc brake pad runout detection dial indicator assembly (9) include a dial indicator. The detection end of the dial indicator is fixedly connected to a roller seat, and a roller (75) is rotatably connected on the roller seat.

Images