Belt pulley size detection device

Abstract

The utility model relates to a belt pulley dimension detection device, which comprises a base and clamps, two support columns are distributed on the base at intervals, the two clamps are respectively arranged on the two support columns, a buckle is arranged at the upper end of each support column, the buckle is provided with a through groove with a downward opening, and the through groove is communicated with the through groove. A through groove is formed in the upper end face of the supporting column, inserting openings are formed between the through groove and the upper end face of the supporting column, the two clamps are inserted into the corresponding inserting openings respectively and can move front and back in the horizontal direction relative to the supporting column, a locking assembly for limiting movement of the clamps is arranged on the buckle, and the shapes of the opposite ends of the two clamps are matched with a wheel groove of a belt wheel. According to the utility model, the fixture moves back and forth in the jack of the pillar in the horizontal direction, so that the device can adapt to detection of belt pulleys of different sizes, and the universality, flexibility and stability of the device are improved; the locking assembly on the buckle can conveniently lock or release the clamp, so that the position adjustment of the clamp becomes simple and rapid, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a pulley size testing device. Background Technology

[0002] As a crucial transmission device, the dimensional accuracy of pulleys significantly impacts product efficiency and lifespan. Therefore, high precision is required when designing pulleys, necessitating testing to ensure accuracy. Traditional pulley dimensional measurement methods, such as using calipers or vernier calipers, while simple and easy to implement, often fail to meet high-precision measurement requirements due to human error and other factors during the measurement process. Furthermore, coordinate measuring machines (CMMs) and projection measurement methods suffer from low testing and debugging efficiency, cumbersome operation, high equipment investment costs, and demanding high levels of expertise from testing personnel.

[0003] Chinese utility model patent with publication number CN204924209U discloses a pulley detection device, including a height gauge and a positioning and measuring component located below the height gauge. The positioning and measuring component includes an annular fixed base and clamps detachably mounted on the fixed base. There are at least three clamps, which are centrally symmetrical about the center line of the fixed base. The clamps extend clamping parts in the direction of the center line of the fixed base. The clamping parts are engaged in the pulley groove to fix the pulley and achieve positioning. However, since the clamps are directly fixed to the fixed base by locking screws, the clamps are prone to shaking when adjusting the position, which affects the accuracy of positioning. Utility Model Content

[0004] The purpose of this invention is to provide a pulley size detection device to solve the problems mentioned in the background art.

[0005] The above-mentioned objective of this utility model is achieved through the following technical solution: a pulley size detection device, comprising a base and clamps, wherein two pillars are spaced apart on the base, and two clamps are respectively disposed on the two pillars, wherein a buckle is provided at the upper end of the pillar, the buckle having a downward-facing through groove, the through groove forming an insertion port with the upper end face of the pillar, the two clamps being respectively inserted into the corresponding insertion port and being able to move back and forth in the horizontal direction relative to the pillar, the buckle being provided with a locking component to restrict the movement of the clamps, and the shape of the opposite end of the two clamps matching the groove of the pulley.

[0006] Preferably, a slot is provided on the side end face of the support column, the slot is parallel to the upper end face of the support column, and a locking strip is provided on the buckle, the locking strip being engaged in the slot.

[0007] Preferably, the card strip is disposed at the opening of the through groove and protrudes from the groove wall.

[0008] Preferably, a positioning component is provided between the support column and the buckle. The positioning component includes a mounting hole on the side wall of the support column, a movable top block in the mounting hole, and a spring in the mounting hole for pushing the movable top block to move outward. The buckle is provided with a positioning hole for inserting the movable top block, and the positioning hole is located on the groove wall of the through groove.

[0009] Preferably, the locking assembly includes a locking screw, the upper end of the buckle is provided with a threaded hole that passes through the through groove, the locking screw is screwed into the buckle hole and the lower end of the locking screw abuts against the clamp.

[0010] Preferably, the buckle is provided with at least two locking screws, and the plurality of locking screws are distributed at intervals along the moving direction of the clamp.

[0011] Preferably, the clamp includes a movable body and a clamping end disposed at the end of the movable body. The movable body is a long strip structure, and its cross-sectional shape matches the shape of the insertion port. The shape of the clamping end matches the groove of the pulley.

[0012] Preferably, the clamping end has an upper positioning end face, a lower positioning end face, and a side positioning end face. The upper positioning end face is located above the moving body and is inclined downwards. The lower positioning end face is inclined upwards from the lower end face of the moving body. The side positioning end face is vertically connected to the end where the distance between the upper positioning end face and the lower positioning end face is smaller. The side positioning end face is a plane or an arc surface.

[0013] The beneficial effects of this utility model are as follows: By moving the clamp back and forth horizontally within the insertion port of the support column, the device can adapt to pulleys of different sizes for testing, thus improving the versatility, flexibility and stability of the device; the locking component on the buckle can easily lock or release the clamp, making the adjustment of the clamp position simple and quick, and improving the testing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the detection device in Embodiment 1 of this utility model;

[0015] Figure 2 This is an exploded view of the detection device of Embodiment 1 of this utility model;

[0016] Figure 3 This is a schematic diagram of the fixture structure in Embodiment 1 of this utility model;

[0017] Figure 4 This is a schematic diagram of the positioning component in Embodiment 2 of this utility model;

[0018] Figure 5 This is a schematic diagram of the detection status of the pulley in an embodiment of this utility model;

[0019] In the diagram: 1-base, 2-support column, 201-slot, 202-mounting hole, 3-buckle, 301-through groove, 302-strip, 303-threaded hole, 304-positioning hole, 4-clamp, 401-moving body, 402-clamping end, 4021-upper positioning end face, 4022-lower positioning end face, 4023-side positioning end face, 5-locking screw, 6-movable top block, 7-spring, 8-pulley. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.

[0022] Example 1:

[0023] like Figure 1-3 As shown, a pulley size detection device includes a base 1 and clamps 4. Two support columns 2 are distributed at intervals on the base 1, and two clamps 4 are movably mounted on the two support columns 2.

[0024] The upper end of the support column 2 is provided with a buckle 3, which has a downward-facing through groove 301. The upper end of the support column 2 is inserted into the through groove 301, forming an insertion port between the through groove 301 and the upper end face of the support column 2. The insertion port is rectangular or a regular polygon. Two clamps 4 are respectively inserted into their corresponding insertion ports and can move back and forth horizontally relative to the support column 2. The buckle 3 is provided with a locking component to restrict the movement of the clamps 4. The shape of the opposite ends of the two clamps 4 matches the groove of the pulley.

[0025] Each side end face of the support column 2 is provided with a slot 201, with one or two slots 201 on each side, and the slots 201 are parallel to the upper end face of the support column 2. A retaining strip 302 is provided on the buckle 3, which is located at the opening of the through groove 301 and protrudes from the groove wall. When installing the buckle 3, the buckle 3 is moved horizontally so that the retaining strip 302 engages within the slot 201.

[0026] The locking assembly includes a locking screw 5. The upper end of the buckle 3 is provided with a threaded hole 303 with a through groove 301. The locking screw 5 is screwed into the hole of the groove 201 and the lower end of the locking screw 5 rests on the clamp 4.

[0027] The latch 3 is provided with two or three locking screws 5, which are distributed back and forth at intervals along the moving direction of the clamp 4. After the clamp 4 is inserted into the socket and adjusted to the appropriate position, the locking screws 5 are tightened so that the locking screws 5 press against the clamp 4 to prevent the clamp 4 from moving.

[0028] like Figure 3 As shown, the clamp 4 includes a movable body 401 and a clamping end 402 disposed at the end of the movable body 401. The movable body 401 is a long strip structure, and its cross-sectional shape matches the shape of the socket. In this embodiment, the cross-sectional shape of the movable body 401 is rectangular.

[0029] The clamping end 402 is shaped to match the groove of the pulley. In this embodiment, the pulley groove is a V-shaped groove. The clamping end 402 has an upper positioning end face 4021, a lower positioning end face 4022, and a side positioning end face 4023. The upper positioning end face 4021 is located above the moving body 401 and slopes downwards. The lower positioning end face 4022 slopes upwards from the lower end face of the moving body 401. The side positioning end face 4023 is vertically connected to the end where the distance between the upper positioning end face 4021 and the lower positioning end face 4022 is smaller. The side positioning end face 4023 is either a plane or an arc surface. The upper positioning end face 4021 and the lower positioning end face 4022 are used to abut against the two groove walls of the pulley groove, and the side positioning end face 4023 is used to abut against the bottom of the pulley groove.

[0030] like Figure 5 As shown, during measurement, first install the two clips 3 on the corresponding support 2, then insert the two clamps 4 into the clips 3 on the corresponding sides, and adjust the clamps 4 to the appropriate position. Place the pulley 8 to be tested between the two clamps 4, and move the clamps 4 so that the pulley 8 is clamped by the two clamps 4. Tighten the locking screws 5 to fix the clamps 4. After the pulley 8 is fixed, use other measuring tools (such as dial indicator, shape measuring instrument and flatness measuring instrument, etc.) to perform the corresponding measurement.

[0031] Example 2:

[0032] like Figure 4 As shown, the difference from Embodiment 1 is that a positioning component is provided between the support column 2 and the buckle 3. This positioning component is used to fix the buckle 3 and prevent the buckle 3 from sliding relative to the support column 2.

[0033] The positioning assembly includes a mounting hole 202 on the side wall of the support column 2, a movable top block 6 disposed within the mounting hole 202, and a spring 7 disposed within the mounting hole 202 for pushing the movable top block 6 outward. The movable top block 6 is movably disposed within the mounting hole 202. One end of the spring 7 is connected to the bottom of the mounting hole 202, and the other end is connected to the movable top block 6. The outward-facing end of the movable top block 6 has a spherical structure. The buckle 3 is provided with a positioning hole 304 for inserting the movable top block 6. The positioning hole 304 is located on the groove wall of the through groove 301. When installing the buckle 3, the clip 302 is inserted into the slot 201 and the buckle 3 continues to move until the end of the movable top block 6 is inserted into the positioning hole 304. At this time, the buckle 3 is fixed to the support column 2 and will not move. When it is necessary to remove the buckle 3, a large thrust is applied in the direction of movement, so that the end of the movable top block 6 is squeezed by the hole wall of the positioning hole 304 and retracts into the mounting hole 202. At this time, the buckle 3 can be removed from the support column 2.

Claims

1. A pulley size detection device, comprising a base (1) and clamps (4), wherein two support columns (2) are spaced apart on the base (1), and the two clamps (4) are respectively disposed on the two support columns (2), characterized in that, The upper end of the support column (2) is provided with a buckle (3), the buckle (3) has a through groove (301) with the opening facing downward, the through groove (301) and the upper end face of the support column (2) form an insertion port, the two clamps (4) are respectively inserted into the corresponding insertion ports and can move back and forth in the horizontal direction relative to the support column (2), the buckle (3) is provided with a locking component to restrict the movement of the clamps (4), and the shape of the opposite end of the two clamps (4) matches the groove of the pulley.

2. The pulley size detection device according to claim 1, characterized in that: A slot (201) is provided on the side end face of the support column (2), the slot (201) is parallel to the upper end face of the support column (2), and a clip (302) is provided on the buckle (3), the clip (302) is engaged in the slot (201).

3. The pulley size detection device according to claim 2, characterized in that: The card strip (302) is disposed at the opening of the through groove (301) and protrudes from the groove wall of the through groove (301).

4. The pulley size detection device according to claim 3, characterized in that: A positioning component is provided between the support column (2) and the buckle (3). The positioning component includes a mounting hole (202) on the side wall of the support column (2), a movable top block (6) in the mounting hole (202), and a spring (7) in the mounting hole (202) for pushing the movable top block (6) to move outward. The buckle (3) is provided with a positioning hole (304) for inserting the movable top block (6). The positioning hole (304) is located on the groove wall of the through groove (301).

5. The pulley size detection device according to claim 4, characterized in that: The locking assembly includes a locking screw (5), and the upper end of the buckle (3) is provided with a threaded hole (303) that passes through the through groove (301) from top to bottom. The locking screw (5) is screwed into the hole of the slot (201) and the lower end of the locking screw (5) abuts against the clamp (4).

6. The pulley size detection device according to claim 5, characterized in that: The buckle (3) is provided with at least two locking screws (5), and the multiple locking screws (5) are distributed at intervals along the moving direction of the clamp (4).

7. The pulley size detection device according to claim 1, characterized in that: The clamp (4) includes a movable body (401) and a clamping end (402) disposed at the end of the movable body (401). The movable body (401) is a long strip structure and its cross-sectional shape matches the shape of the socket. The shape of the clamping end (402) matches the groove of the pulley.

8. The pulley size detection device according to claim 7, characterized in that: The clamping end (402) has an upper positioning end face (4021), a lower positioning end face (4022), and a side positioning end face (4023). The upper positioning end face (4021) is located above the moving body (401) and is inclined downward. The lower positioning end face (4022) is inclined upward from the lower end face of the moving body (401). The side positioning end face (4023) is vertically connected to the end where the distance between the upper positioning end face (4021) and the lower positioning end face (4022) is smaller. The side positioning end face (4023) is a plane or an arc surface.

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