Sectional type gear expansion sleeve

Abstract

The utility model relates to the technical field of expansion sleeves, in particular to a sectional type gear expansion sleeve which comprises an upper expansion sleeve and an adjusting bolt, the adjusting bolt penetrates through the interior of the upper expansion sleeve, one end of the adjusting bolt is in butt joint with a lower expansion sleeve, and the end, away from the lower expansion sleeve, of the adjusting bolt penetrates through the interior of a connecting ring plate. The device has the beneficial effects that one adjusting bolt is rotated, the adjusting bolt drives the fluted disc to rotate, all the adjusting bolts rotate at the same time, the expansion sleeve can be evenly attached to the shaft, at the moment, the threaded rod is rotated, the connecting annular plate is difficult to rotate, the adjusting bolts are not prone to loosening, and the adjusting bolts are not prone to loosening; the sectional type gear expansion sleeve can be conveniently, rapidly and stably limited together with a gear, the butt joint cover and the expansion lower sleeve are in butt joint, the connecting plate and the connecting ring plate are limited together by rotating the connecting plate, and the sectional type gear expansion sleeve is convenient for dust prevention.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion sleeves, in particular to a segmented gear expansion sleeve. Background Art

[0002] The segmented gear expansion sleeve is a device used to connect the shaft and the gear. The segmented gear expansion sleeve can firmly fix the gear on the shaft. The gear expansion sleeve tightly connects the gear and the shaft through the threaded structure on the outer edge or other connection methods, so that the gear can effectively transmit torque and ensure that the position of the gear on the shaft is fixed. The segmented gear expansion sleeve can ensure the stable transmission relationship between the gear and the shaft, avoiding transmission failure or instability caused by the movement of the gear;

[0003] When installing the segmented gear expansion sleeve with the gear, the staff needs to ensure that each segment is tightened evenly. Therefore, the installation of the segmented gear expansion sleeve needs to be tightened alternately segment by segment to ensure that the expansion sleeve can fit evenly on the shaft. At this time, the staff needs to tighten each adjustment bolt in turn and evenly until the expansion sleeve fits tightly on the shaft. When the staff rotates the adjustment bolt, it takes a certain amount of time and energy, making it inconvenient for the segmented gear expansion sleeve to be quickly installed with the gear. Therefore, we propose a segmented gear expansion sleeve. Utility Model Content

[0004] The purpose of the utility model is to provide a segmented gear expansion sleeve to solve the problem in the above background technology that the staff needs to tighten each adjustment bolt evenly in sequence, which requires the staff to spend a certain amount of time and energy, making it inconvenient to quickly install the segmented gear expansion sleeve with the gear.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a segmented gear expansion sleeve, comprising an expansion upper sleeve and an adjusting bolt, wherein the interior of the expansion upper sleeve is penetrated by an adjusting bolt, and one end of the adjusting bolt is connected to the expansion lower sleeve, and the end of the adjusting bolt away from the expansion lower sleeve is penetrated by the interior of a connecting ring plate, and the inner side of the connecting ring plate is movably connected to a toothed disc through a bearing, the toothed disc is fixed to the adjusting bolt, and the outer side of the toothed disc is connected to a toothed ring.

[0006] Preferably, the gear ring is movably connected to the connecting ring plate via a bearing, and a screw rod penetrates the interior of the connecting ring plate, and the screw rod is movably connected to the docking plate via a bearing.

[0007] Preferably, a receiving groove is provided on one side of the connecting ring plate close to the docking plate, and the docking plate is slidably docked with the receiving groove, and a sliding rod is fixed on one side of the docking plate close to the screw rod.

[0008] Preferably, a sliding groove is provided on a side of the connecting ring plate close to the sliding rod, and the sliding rod is slidably connected with the sliding groove.

[0009] Preferably, a lug ring is fixed to a side of the expansion upper sleeve close to the docking plate, and the lug ring is in contact with the docking plate.

[0010] Preferably, a docking cover is sleeved on the outer side of the lower expansion sleeve, and sealing rings are respectively bonded on both sides of the docking cover.

[0011] Preferably, the inner side of the docking cover is movably connected to the connecting plate via a rotating shaft, and a first magnetic block is embedded on one side of the connecting plate.

[0012] Preferably, a second magnetic block is embedded on a side of the connecting ring plate close to the first magnetic block, and the first magnetic block fits the second magnetic block.

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

[0014] The utility model provides a segmented gear expansion sleeve: the segmented gear expansion sleeve, by rotating one of the adjusting bolts, the adjusting bolt drives the gear plate to rotate, so that the adjusting bolts rotate at the same time, so that the expansion sleeve can be evenly fitted on the shaft, and at this time, the screw rod is rotated again, so that the connecting ring plate is difficult to rotate, and the adjusting bolt is not easy to loosen, so that the segmented gear expansion sleeve is convenient to be quickly and stably restricted together with the gear, the docking cover is docked with the expansion lower sleeve, and the connecting plate is rotated so that the connecting plate and the connecting ring plate are restricted together, so that the segmented gear expansion sleeve is convenient to be dustproof.

[0015] 1. When installing the segmented gear expansion sleeve and the gear, place the gear on the outside of the expansion sleeve, then place the connecting shaft on the inside of the expansion sleeve, rotate one of the adjusting bolts, so that the adjusting bolt drives the gear plate to rotate, so that all the adjusting bolts rotate at the same time, so that the expansion sleeve can be evenly fitted on the shaft, and then rotate the screw rod so that the connecting ring plate is limited by the docking plate and the convex ring, so that the connecting ring plate is difficult to rotate, and the adjusting bolt is not easy to loosen, so that the segmented gear expansion sleeve is easy to be quickly and stably restricted with the gear;

[0016] 2. The segmented gear expansion sleeve docks the docking cover with the expansion lower sleeve, makes the docking cover close to the connecting ring plate, makes the sealing ring and the connecting ring plate form a sealing state, rotates the connecting plate, restricts the connecting plate and the connecting ring plate together, strengthens the limit of the docking cover and the connecting ring plate, so that the docking cover can prevent dust from entering the gap of the segmented gear expansion sleeve, making the segmented gear expansion sleeve easy to prevent dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 2 It is a right side structural schematic diagram of the utility model;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 4 It is a schematic diagram of the right side cross-sectional structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the docking plate and the protrusion ring of the utility model;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the screw and the bump ring of the utility model.

[0023] In the figure: 1, tightening upper sleeve; 101, adjusting bolt; 102, tightening lower sleeve; 2, connecting ring plate; 201, toothed disc; 202, toothed ring; 203, screw rod; 204, docking plate; 2041, storage groove; 205, slide rod;

[0024] 206, slide groove; 207, bump ring; 3, docking cover; 301, sealing ring; 302, connecting plate; 303, first magnetic block; 304, second magnetic block. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1-Figure 6The utility model provides a technical solution: a segmented gear expansion sleeve, including an expansion upper sleeve 1 and an adjusting bolt 101, the interior of the expansion upper sleeve 1 is penetrated by the adjusting bolt 101, and one end of the adjusting bolt 101 is connected to the expansion lower sleeve 102, the end of the adjusting bolt 101 away from the expansion lower sleeve 102 is penetrated by the interior of the connecting ring plate 2, and the inner side of the connecting ring plate 2 is movably connected to the toothed disc 201 through a bearing, the toothed disc 201 is fixed to the adjusting bolt 101, and the outer side of the toothed disc 201 is connected to a toothed ring 202, the toothed ring 202 is movably connected to the connecting ring plate 2 through a bearing, and the interior of the connecting ring plate 2 is penetrated by a screw 203, and the screw 203 is connected to the connecting ring plate 2 through a shaft The bearing is movably connected with the docking plate 204, a receiving groove 2041 is provided on the side of the connecting ring plate 2 close to the docking plate 204, and the docking plate 204 is slidably docked with the receiving groove 2041, a sliding rod 205 is fixed on the side of the docking plate 204 close to the screw 203, a sliding groove 206 is provided on the side of the connecting ring plate 2 close to the sliding rod 205, and the sliding rod 205 is slidably docked with the sliding groove 206, a bump ring 207 is fixed on the side of the expansion upper sleeve 1 close to the docking plate 204, and the bump ring 207 is connected to the docking plate 204, the toothed disc 201 is meshed with the toothed ring 202, the screw 203 is threadedly connected to the connecting ring plate 2, and the sliding rod 205 matches the sliding groove 206.

[0028] In specific implementation, according to Figure 1-Figure 6 When installing the segmented gear expansion sleeve and the gear, place the gear on the outside of the expansion sleeve, and then place the connecting shaft on the inside of the expansion sleeve. Rotate one of the adjusting bolts 101 to make the adjusting bolt 101 drive the toothed disc 201 to rotate. The toothed disc 201 and the gear ring 202 are meshed and connected, so that the toothed disc 201 of one of the adjusting bolts 101 drives the gear ring 202 to rotate, and the gear ring 202 drives the remaining toothed discs 201 to rotate, so that each adjusting bolt 101 rotates at the same time, so that each segment of the expansion sleeve is tightened evenly at the same time, so that the expansion sleeve can be evenly fitted on the shaft. At this time, rotate the screw 203 again. The screw rod 203 is threadedly connected to the connecting ring plate 2, so that the screw rod 203 can push the docking plate 204 to move out of the storage groove 2041, and the slide rod 205 is matched with the slide groove 206, so that when the screw rod 203 pushes the docking plate 204, the docking plate 204 will not rotate or deviate, so that the docking plate 204 is easy to dock with the bump ring 207. At this time, the connecting ring plate 2 is limited by the docking plate 204 and the bump ring 207, so that the connecting ring plate 2 is restricted to the outside of the expansion sleeve 1, making it difficult for the connecting ring plate 2 to rotate, making it difficult for the adjusting bolt 101 to loosen, and making it easy for the segmented gear expansion sleeve to be quickly and stably restricted to the gear.

[0029] Embodiment 2

[0030] Based on Example 1, please refer to Figure 1 and Figure 3 The outer side of the expansion lower sleeve 102 is sleeved with a docking cover 3, and sealing rings 301 are respectively bonded to the two sides of the docking cover 3, the inner side of the docking cover 3 is movably connected to the connecting plate 302 through a rotating shaft, one side of the connecting plate 302 is inlaid with a first magnetic block 303, and the side of the connecting ring plate 2 close to the first magnetic block 303 is inlaid with a second magnetic block 304, and the first magnetic block 303 and the second magnetic block 304 are in contact with each other, the docking cover 3 is made of transparent plastic material, the sealing ring 301 is made of rubber material, and the sealing ring 301 is squeezed with the connecting ring plate 2, and the first magnetic block 303 and the second magnetic block 304 are magnetically attracted.

[0031] In specific implementation, according to Figure 1 and Figure 3 , dock the docking cover 3 with the lower expansion sleeve 102, make the docking cover 3 close to the connecting ring plate 2, and use the rubber material of the sealing ring 301 to have a certain deformation ability, and the sealing ring 301 and the connecting ring plate 2 are squeezed, so that the sealing ring 301 and the connecting ring plate 2 form a sealed state, and then rotate the connecting plate 302, so that the connecting plate 302 drives the first magnetic block 303 and the second magnetic block 304 to fit together, and the first magnetic block 303 and the second magnetic block 304 are magnetically attracted to each other, so that the connecting plate 302 and the connecting ring plate 2 are restricted together, and the limit of the docking cover 3 and the connecting ring plate 2 is strengthened, so that the docking cover 3 can prevent dust from entering the gap of the segmented gear expansion sleeve, so that the segmented gear expansion sleeve is easy to be dustproof.

[0032] In actual use, when the segmented gear expansion sleeve is installed with the gear, the gear is placed on the outside of the expansion sleeve, and the connecting shaft is placed on the inside of the expansion sleeve. One of the adjusting bolts 101 is rotated to rotate the adjusting bolts 101 at the same time, so that the expansion sleeve can be evenly fitted on the shaft. The screw 203 is rotated to make the docking plate 204 easy to dock with the bump ring 207, making it difficult for the connecting ring plate 2 to rotate, making it difficult for the adjusting bolt 101 to loosen, making it easy for the segmented gear expansion sleeve to be quickly and stably restricted with the gear, docking the docking cover 3 with the expansion lower sleeve 102, rotating the connecting plate 302, so that the connecting plate 302 and the connecting ring plate 2 are restricted together, strengthening the limit of the docking cover 3 and the connecting ring plate 2, so that the docking cover 3 can prevent dust from entering the gap of the segmented gear expansion sleeve, making it easy to prevent dust from entering the segmented gear expansion sleeve.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A segmented gear expansion sleeve, comprising an expansion sleeve (1) and an adjusting bolt (101), characterized in that: The segmented gear expansion sleeve comprises: An adjusting bolt (101) passes through the interior of the expansion upper sleeve (1), and one end of the adjusting bolt (101) is connected to the expansion lower sleeve (102). One end of the adjusting bolt (101) away from the expansion lower sleeve (102) passes through the interior of the connecting ring plate (2), and the inner side of the connecting ring plate (2) is movably connected to the toothed disc (201) through a bearing. The toothed disc (201) is fixed to the adjusting bolt (101), and the outer side of the toothed disc (201) is connected to a toothed ring (202).

2. The segmented gear expansion sleeve according to claim 1, characterized in that: The gear ring (202) is movably connected to the connecting ring plate (2) via a bearing, and a screw rod (203) penetrates the interior of the connecting ring plate (2), and the screw rod (203) is movably connected to the docking plate (204) via a bearing.

3. The segmented gear expansion sleeve according to claim 2, characterized in that: A receiving groove (2041) is provided on one side of the connecting ring plate (2) close to the docking plate (204), and the docking plate (204) is slidably docked with the receiving groove (2041), and a sliding rod (205) is fixed on one side of the docking plate (204) close to the screw rod (203).

4. The segmented gear expansion sleeve according to claim 3 is characterized in that: A sliding groove (206) is provided on one side of the connecting ring plate (2) close to the sliding rod (205), and the sliding rod (205) and the sliding groove (206) are slidably connected.

5. The segmented gear expansion sleeve according to claim 1, characterized in that: A lug ring (207) is fixed to one side of the expansion upper sleeve (1) close to the docking plate (204), and the lug ring (207) is in contact with the docking plate (204).

6. The segmented gear expansion sleeve according to claim 1, characterized in that: The outer side of the expansion lower sleeve (102) is sleeved with a docking cover (3), and sealing rings (301) are respectively bonded to both sides of the docking cover (3).

7. The segmented gear expansion sleeve according to claim 6, characterized in that: The inner side of the docking cover (3) is movably connected to the connecting plate (302) via a rotating shaft, and a first magnetic block (303) is embedded on one side of the connecting plate (302).

8. The segmented gear expansion sleeve according to claim 4, characterized in that: A second magnetic block (304) is embedded on one side of the connecting ring plate (2) close to the first magnetic block (303), and the first magnetic block (303) and the second magnetic block (304) are in close contact with each other.

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