Quick centering and installing guide clamp for pulley shaft hole

Abstract

The utility model discloses a kind of quick centering installation guiding clamps of pulley axle hole, it is related to guiding clamp technical field, including connecting seat, clamping structure, mounting structure and adjusting structure;First, the electric push rod in the inside of clamping plate of two sides is started, so that it promotes clamping block to move to external structure, two carriages on the top of clamping block are synchronous sliding along the sliding slot in the bottom of connecting seat to ensure that moving is stable, until the rubber plate on the side of clamping block is closely contacted with external structure, the fixation of clamp is completed by two sides clamping force, rubber plate can avoid damaging external structure surface when clamping;Subsequently, the two clamping blocks on the second mounting block are aligned with the connecting slot on the first mounting block and embedded, the protruding button on the top of clamping block is ejected under the spring elastic force by spring connection, and is clamped into the clamping slot, the clamping of the first mounting block and the second mounting block is fixed, and then mounting structure is integrally sleeved on connecting shaft, so that adjusting structure is connected with connecting seat by mounting structure.

Description

Technical Field

[0001] This utility model relates to the field of guide clamp technology, specifically a guide clamp for quick alignment and installation of pulley shaft holes. Background Technology

[0002] A pulley is a mechanical transmission component that relies on a belt to transmit power. It is typically a circular wheel-shaped structure with a central hole for mates with a shaft. The rim surface has annular grooves ("pulley grooves") to accommodate the transmission belt. Materials are mostly cast iron, steel, aluminum alloy, or engineering plastics. It can be designed with single or multiple grooves (such as V-grooves or synchronous pulley tooth grooves) depending on transmission requirements. Its main function is to transmit power between different shafts through friction or meshing with the belt. The rotational speed is adjusted by changing the diameter ratio of the driving and driven pulleys (increasing or decreasing the speed and correspondingly changing the torque). The flexible connection between the belt and the pulley absorbs the transmission process. The belt pulley system protects equipment from impact and vibration, and prevents motor burnout and shaft breakage due to belt slippage under overload conditions. It is also suitable for applications with large distances between the drive and driven shafts and allows for slight alignment deviations, making it highly adaptable. Therefore, due to its simple structure, low cost, and easy maintenance, the belt pulley is widely used in industrial manufacturing (e.g., machine tools, fans, pumps, compressors, conveyors), agricultural machinery (e.g., tractors, harvesters, threshers, crushers), automotive and transportation (e.g., automotive engine accessory systems, motorcycle transmission systems), and home appliances and consumer equipment (e.g., washing machines, air conditioners). Heavy equipment such as treadmills, grain processing machines, and mining and construction equipment (such as crushers, screening machines, and winches) are widely used in these applications. However, to ensure that the pulleys function stably in these scenarios, precise alignment of the shaft hole and the shaft body is crucial. If the shaft hole and the shaft body are not aligned, the pulley will be misaligned after installation, generating periodic centrifugal force during operation. This causes severe vibration of the equipment, accompanied by harsh noise, which not only disrupts the smoothness of operation but also subjects core components such as the shaft body, bearings, and bearing housings to additional radial forces, accelerating wear and significantly shortening the equipment's lifespan. At the same time, eccentric operation will cause uneven tension on both sides of the belt. Areas subjected to excessive local stress are prone to cracking, aging, and even breakage, increasing the frequency of belt replacement and maintenance costs. In scenarios with extremely high requirements for transmission accuracy, such as machine tool spindles and precision conveyor lines, misalignment of the shaft hole can directly lead to excessive machining dimensional errors or material conveying deviations, affecting product quality. In more serious cases, the eccentrically rotating pulley may rub against and interfere with surrounding housings, supports, and other components, causing equipment jamming, shutdown, or even damage to parts or personnel safety accidents. Therefore, those skilled in the art have provided a quick-alignment installation guide fixture for the pulley shaft hole to solve the problems mentioned in the background art. Utility Model Content

[0003] The purpose of this invention is to provide a quick-alignment installation guide clamp for pulley shaft holes, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A quick-alignment installation guide clamp for a pulley shaft hole includes a connecting seat, a clamping structure, a mounting structure, and an adjusting structure. A round shaft is rotatably connected to the connecting seat, a connecting shaft is fixedly connected to the top of the round shaft, the mounting structure is detachably connected to the connecting shaft, the adjusting structure is fixedly connected to the mounting structure, and clamping structures are symmetrically fixedly connected to both sides of the connecting seat.

[0006] As a further embodiment of this utility model: the clamping structure includes a clamping plate, a slide, an electric push rod, a clamping block and a rubber plate. An electric push rod is fixedly connected to the inner side of the clamping plate, and a clamping block is fixedly connected to the power output end of the electric push rod. A rubber plate is fixedly connected to the side of the clamping block away from the electric push rod, and two slides are fixedly connected to the top of the clamping block.

[0007] As a further embodiment of this utility model: the installation structure includes a first mounting block, a slot, a connecting groove, a locking block, a second mounting block, and a raised button. The second mounting block is snapped onto one side of the first mounting block, and two locking blocks are fixedly connected to one side of the second mounting block.

[0008] As a further improvement of this utility model: each of the card blocks has a raised button that is movably connected to it by a spring, and two connecting slots corresponding to the card blocks are opened on one side of the first mounting block, and the connecting slots are embeddedly connected to the card blocks.

[0009] As a further improvement of this utility model: a slot corresponding to the raised button is provided on one side of the connecting groove, and the slot is snapped together with the raised button.

[0010] As a further embodiment of this utility model: the adjustment structure includes a circular plate, a cylinder and an adjustment head, with the cylinder fixedly connected to one side of the circular plate, and the adjustment head fixedly connected to the telescopic end of the cylinder.

[0011] As a further improvement of this utility model: a groove is provided on one side of the connecting seat, a motor is fixedly connected inside the groove, and the power output shaft of the motor is fixedly connected to the round shaft.

[0012] As a further embodiment of this utility model: the bottom of the connecting seat has two sliding grooves that correspond to the slides on the clamping structure, and the sliding grooves are slidably connected to the slides. The top of the connecting shaft is fixedly connected to a fixed shaft, and the top of the fixed shaft is fixedly connected to a guide cone.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In use, first, start the electric push rod on the inner side of the clamping plates on both sides. Its power output end pushes the clamping block to move towards the external structure. The two slides on the top of the clamping block slide synchronously along the slide groove at the bottom of the connecting seat to ensure smooth movement until the rubber plate on one side of the clamping block is in close contact with the external structure. The clamping force on both sides completes the fixation of the clamp. The rubber plate can prevent damage to the surface of the external structure during clamping.

[0015] 2. Next, align the two locking blocks on one side of the second mounting block with the connecting groove on the first mounting block and insert them. The protruding button on the top of the locking block, connected by a spring, pops out under the action of the spring force and locks into the corresponding locking groove on one side of the connecting groove, thereby achieving the snap-locking and fixing of the first mounting block and the second mounting block. Then, the entire mounting structure is fitted onto the connecting shaft, so that the adjustment structure is connected to the connecting seat through the mounting structure.

[0016] 3. Then, insert the pulley to be installed onto the guide cone at the top of the fixed shaft. Use the conical surface of the guide cone to guide the pulley shaft hole to initially align with the fixed shaft, completing the initial placement of the pulley. Next, start the motor in the groove on one side of the connecting seat. The motor's power output shaft drives the round shaft to rotate around the connecting seat. The connecting shaft at the top of the round shaft rotates accordingly, thereby driving the mounting structure and the adjustment structure fixed on it to rotate synchronously. At the same time, start the cylinder on one side of the round plate in the adjustment structure. The telescopic end of the cylinder pushes the adjustment head to extend towards the pulley shaft hole. After the adjustment head contacts the inner wall of the shaft hole, as the adjustment structure rotates with the connecting shaft, the position of the adjustment head is finely adjusted by the telescopic movement of the cylinder, forcing the pulley to move slightly and gradually correcting the position of the shaft hole so that the center of the pulley shaft hole is completely coincident with the axis of the guide cone.

[0017] 4. Once the shaft hole and guide cone are precisely aligned, the telescopic end of the control cylinder retracts, causing the adjusting head to disengage from the pulley shaft hole. Align one end of the shaft to be connected with the top of the guide cone and slowly push it in along the cone surface of the guide cone. Under the guiding action, the shaft is smoothly inserted into the pulley shaft hole, thus completing the alignment and installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a guide clamp for quick alignment and installation of a pulley shaft hole.

[0019] Figure 2 This is a schematic diagram of a guide cone structure in a quick-alignment installation guide fixture for a pulley shaft hole.

[0020] Figure 3 This is a schematic diagram of the clamping structure in a guide fixture for quick alignment and installation of a pulley shaft hole.

[0021] Figure 4 This is a schematic diagram of the connecting shaft connection structure in a quick-alignment installation guide fixture for a pulley shaft hole.

[0022] Figure 5 This is a schematic diagram of the installation structure in a guide fixture for quick alignment of a pulley shaft hole.

[0023] Figure 6 This is a schematic diagram of the adjustment structure in a guide fixture for quick alignment and installation of a pulley shaft hole.

[0024] In the diagram: 1. Connecting seat; 2. Connecting shaft; 3. Fixed shaft; 4. Guide cone; 5. Clamping structure; 51. Clamping plate; 52. Slide; 53. Electric push rod; 54. Clamping block; 55. Rubber plate; 6. Mounting structure; 61. First mounting block; 62. Slot; 63. Connecting slot; 64. Locking block; 65. Second mounting block; 66. Raised button; 7. Adjustment structure; 71. Round plate; 72. Cylinder; 73. Adjusting head; 8. Groove; 9. Slide; 10. Round shaft; 11. Motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6This embodiment provides a quick-alignment installation guide clamp for a pulley shaft hole, including a connecting seat 1, a clamping structure 5, a mounting structure 6, and an adjusting structure 7. A round shaft 10 is rotatably connected to the connecting seat 1, and a connecting shaft 2 is fixedly connected to the top of the round shaft 10. The mounting structure 6 is detachably connected to the connecting shaft 2, and the adjusting structure 7 is fixedly connected to the mounting structure 6. Clamping structures 5 are symmetrically fixedly connected to both sides of the connecting seat 1. A groove 8 is formed on one side of the connecting seat 1, and a motor 11 is fixedly connected inside the groove 8. The power output shaft of the motor 11 is fixedly connected to the round shaft 10. When the motor 11 in the groove 8 on one side of the connecting seat 1 is started, the motor... The power output shaft of 11 drives the round shaft 10 to rotate around the connecting seat 1. The connecting shaft 2 at the top of the round shaft 10 rotates accordingly, thereby driving the mounting structure 6 and the adjustment structure 7 fixed thereon to rotate synchronously. The bottom of the connecting seat 1 has two sliding grooves 9 that correspond to the slide 52 on the clamping structure 5. The sliding grooves 9 are slidably connected to the slide 52. The top of the connecting shaft 2 is fixedly connected to a fixed shaft 3. The top of the fixed shaft 3 is fixedly connected to a guide cone 4. The pulley to be installed is inserted into the guide cone 4 at the top of the fixed shaft 3. The guide cone 4 guides the pulley shaft hole to be initially aligned with the fixed shaft 3, thus completing the initial placement of the pulley.

[0028] Example 2

[0029] Reference Figure 1-6This embodiment is based on the previous embodiment, but differs in that the clamping structure 5 includes a clamping plate 51, a slide 52, an electric push rod 53, a clamping block 54, and a rubber plate 55. The electric push rod 53 is fixedly connected to the inner side of the clamping plate 51. The power output end of the electric push rod 53 is fixedly connected to the clamping block 54. The side of the clamping block 54 away from the electric push rod 53 is fixedly connected to the rubber plate 55. Two slides 52 are fixedly connected to the top of the clamping block 54. Activating the electric push rods 53 on the inner sides of the clamping plates 51 on both sides pushes the clamping block 54 towards the external structure. The two slides 52 on the top of the clamping block 54 move along... The sliding groove 9 at the bottom of the connecting seat 1 slides synchronously to ensure smooth movement until the rubber plate 55 on one side of the clamping block 54 is in close contact with the external structure. The clamping force on both sides completes the fixation of the clamp. The rubber plate 55 can prevent damage to the surface of the external structure during clamping. The mounting structure 6 includes a first mounting block 61, a slot 62, a connecting groove 63, a locking block 64, a second mounting block 65, and a raised button 66. The second mounting block 65 is snapped to one side of the first mounting block 61. Two locking blocks 64 are fixedly connected to one side of the second mounting block 65. The top of each locking block 64 is movably connected to a raised button 66 by a spring. Two buttons are opened on one side of the first mounting block 61. The connecting groove 63 corresponding to the locking block 64 is embedded in the locking block 64. Each side of the connecting groove 63 has a corresponding slot 62 for the raised button 66, which is snapped into the raised button 66. The two locking blocks 64 on one side of the second mounting block 65 are aligned with the connecting groove 63 on the first mounting block 61 and inserted. The raised button 66, connected by a spring at the top of the locking block 64, pops out under the spring force and snaps into the corresponding slot 62 on one side of the connecting groove 63, thus securing the first mounting block 61 and the second mounting block 65. This allows the entire mounting structure 6 to be fitted onto the connecting shaft 2, thereby enabling the adjustment structure 7 to... The adjustment structure 7 is connected to the connecting seat 1 via the mounting structure 6. The adjustment structure 7 includes a circular plate 71, a cylinder 72, and an adjustment head 73. The cylinder 72 is fixedly connected to one side of the circular plate 71, and the adjustment head 73 is fixedly connected to the telescopic end of the cylinder 72. When the cylinder 72 on one side of the circular plate 71 is activated, the telescopic end of the cylinder 72 pushes the adjustment head 73 to extend towards the pulley shaft hole. After the adjustment head 73 contacts the inner wall of the shaft hole, as the adjustment structure 7 rotates with the connecting shaft 2, the position of the adjustment head 73 is finely adjusted by the telescopic movement of the cylinder 72, forcing the pulley to move slightly and gradually correcting the position of the shaft hole so that the center of the pulley shaft hole is completely aligned with the axis of the guide cone 4.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-alignment installation guide clamp for a pulley shaft hole, comprising a connecting seat (1), a clamping structure (5), an installation structure (6), and an adjustment structure (7), characterized in that, A round shaft (10) is rotatably connected to the connecting seat (1), a connecting shaft (2) is fixedly connected to the top of the round shaft (10), an installation structure (6) is detachably connected to the connecting shaft (2), an adjustment structure (7) is fixedly connected to the installation structure (6), and clamping structures (5) are symmetrically fixedly connected to both sides of the connecting seat (1).

2. The quick-alignment installation guide clamp for a pulley shaft hole according to claim 1, characterized in that, The clamping structure (5) includes a clamping plate (51), a slide (52), an electric push rod (53), a clamping block (54), and a rubber plate (55). The electric push rod (53) is fixedly connected to the inner side of the clamping plate (51). The clamping block (54) is fixedly connected to the power output end of the electric push rod (53). The rubber plate (55) is fixedly connected to the side of the clamping block (54) away from the electric push rod (53). Two slides (52) are fixedly connected to the top of the clamping block (54).

3. The quick-alignment installation guide clamp for a pulley shaft hole according to claim 1, characterized in that, The mounting structure (6) includes a first mounting block (61), a slot (62), a connecting slot (63), a locking block (64), a second mounting block (65), and a raised button (66). The first mounting block (61) is snapped to one side with the second mounting block (65), and the second mounting block (65) is fixedly connected to two locking blocks (64) on one side.

4. A quick-alignment installation guide clamp for a pulley shaft hole according to claim 3, characterized in that, Each of the card blocks (64) has a raised button (66) connected to its top by a spring. The first mounting block (61) has two connecting slots (63) on one side that correspond to the card blocks (64). The connecting slots (63) are embedded in the card blocks (64).

5. A quick-alignment installation guide clamp for a pulley shaft hole according to claim 3, characterized in that, Each side of the connecting groove (63) is provided with a slot (62) corresponding to the raised button (66), and the slot (62) is snapped into the raised button (66).

6. A quick-alignment installation guide clamp for a pulley shaft hole according to claim 1, characterized in that, The adjustment structure (7) includes a circular plate (71), a cylinder (72) and an adjustment head (73). The cylinder (72) is fixedly connected to one side of the circular plate (71), and the adjustment head (73) is fixedly connected to the telescopic end of the cylinder (72).

7. A quick-alignment installation guide clamp for a pulley shaft hole according to claim 1, characterized in that, The connecting seat (1) has a groove (8) on one side, and a motor (11) is fixedly connected inside the groove (8), and the power output shaft of the motor (11) is fixedly connected to the round shaft (10).

8. A quick-alignment installation guide clamp for a pulley shaft hole according to claim 1, characterized in that, The bottom of the connecting seat (1) has two sliding grooves (9) that correspond to the slides (52) on the clamping structure (5), and the sliding grooves (9) are slidably connected to the slides (52). The top of the connecting shaft (2) is fixedly connected to a fixed shaft (3), and the top of the fixed shaft (3) is fixedly connected to a guide cone (4).

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