Worm structure capable of adjusting tooth position

Abstract

The utility model relates to the technical field of worm structures, in particular to a tooth position adjustable worm structure which comprises a connecting sleeve and a worm sleeve, a connecting rod is arranged in the connecting sleeve, the worm sleeve is arranged on the circumferential face of the connecting rod, and a limiting pin is arranged on the circumferential face of the worm sleeve. According to the worm structure capable of adjusting the tooth position, the tooth part is separated from the rod body mainly through the arrangement of the connecting sleeve and the worm sleeve, a user can change the position of the tooth on the rod body according to the use requirement, the tooth can be replaced so as to adapt to different tooth requirements, and the worm structure is simple in structure and convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the field of worm structures, in particular to a worm structure with adjustable tooth positions. Background Art

[0002] The worm structure is a unique mechanical element with one or more spiral teeth. These spiral teeth mesh with the worm wheel to form a staggered axis gear pair, which is usually used to transmit motion and power between two axes. The angle between the two axes is usually 90°. The dividing surface of the worm can be a cylindrical surface, a conical surface or a torus surface. According to the difference in its tooth profile curve, the worm can be divided into Archimedean worm, involute worm, normal straight profile worm and conical envelope cylindrical worm.

[0003] The existing Chinese patent with announcement number CN202732885U discloses an improved worm structure, including a worm shaft and a tooth profile arranged on the worm shaft, wherein the tooth profile is arranged in pairs on the worm shaft, and a pair of tooth profiles is a tooth profile group consisting of a symmetrically arranged left-handed tooth profile and a right-handed tooth profile. The symmetrically arranged tooth profile group can drive two worm wheels in two directions at the same time to perform transmission work, with high transmission efficiency. When a pair of tooth profile groups are working, it is equivalent to two pairs of worm wheels with different directions running at the same time, and the axial force generated is balanced, which effectively reduces the wear rate of the transmission parts during the working process of the reducer and improves the working efficiency and service life of the reducer.

[0004] The worm structure in the above scheme and the prior art is often an integrated part that can only meet a single use requirement, and can only be dismantled and repaired as a whole after being damaged. There is a lack of corresponding structure here, and improvement and optimization are needed. Utility Model Content

[0005] The purpose of the utility model is to provide a worm structure with adjustable tooth positions to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a worm structure with adjustable tooth position includes a connecting sleeve and a worm sleeve, a connecting rod is arranged inside the connecting sleeve, a worm sleeve is arranged on the circumferential surface of the connecting rod, and a limit pin is arranged on the circumferential surface of the worm sleeve.

[0007] Preferably, there are two connecting sleeves, which are symmetrically arranged at the front and rear ends of the worm sleeve. The connecting sleeve is connected to the worm sleeve through a limit pin. There are four limit pins, which are arranged in a circular array on the circumferential surface of the worm sleeve.

[0008] Preferably, the connecting rod comprises a rod body, a thread groove and a sliding groove, the thread groove is arranged on the circumferential surface of the rod body, and the sliding groove is arranged on the circumferential surface of the rod body.

[0009] Preferably, there are two sliding grooves, which are symmetrically arranged on the circumferential surface of the rod body.

[0010] Preferably, the connecting sleeve includes a sleeve body, a slider, a swivel, a positioning hole, a fixed block and a corresponding clamping block. The interior of the sleeve body is fixedly connected with a slider, the slider is slidably connected with a sliding groove, a swivel is sleeved on the circumferential surface of the sleeve body, a positioning hole is provided on the circumferential surface of the swivel, the rear end of the sleeve body is fixedly connected with a fixed block, and the circumferential surface of the fixed block is fixedly connected with a corresponding clamping block.

[0011] Preferably, there are two sliders and they are symmetrically arranged inside the sleeve, there are four positioning holes and they are arranged in a circular array on the circumferential surface of the rotating ring, there are multiple corresponding blocks and they are arranged in a circular array on the circumferential surface of the fixed block, and the cross-section of the corresponding blocks is triangular.

[0012] Preferably, the worm sleeve comprises a sleeve rod, teeth, corresponding grooves, a fixing plate, corresponding pin holes and a threaded block, the sleeve rod is fixedly connected with teeth on the circumferential surface, the sleeve rod is provided with corresponding grooves inside, the corresponding grooves are engaged with the fixing blocks, the front end of the sleeve rod is fixedly connected with a fixing plate, the fixing plate is provided with corresponding pin holes inside, the sleeve rod is fixedly connected with a threaded block inside, and the threaded block is threadedly connected to the thread groove.

[0013] Preferably, the number of the fixing plates and the corresponding pin holes are both four, and they are arranged in a circular array at the front end of the sleeve rod.

[0014] Preferably, the corresponding pin hole and the positioning hole are arranged correspondingly, and the corresponding pin hole and the positioning hole are connected by a limiting pin.

[0015] Preferably, the spiral direction of the thread groove is opposite to that of the tooth.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model proposes a worm structure with adjustable tooth position, which mainly separates the tooth part from the rod body by setting a connecting sleeve and a worm sleeve, so that the user can change the position of the tooth on the rod body according to the use requirements, and can replace the tooth to meet different tooth requirements. The structure is simple and easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a worm structure with adjustable tooth position;

[0019] Figure 2 A schematic diagram of a connection structure of a worm structure with adjustable tooth position;

[0020] Figure 3 A schematic diagram of a connecting rod structure of a worm structure with adjustable tooth position;

[0021] Figure 4 A schematic diagram of a connecting sleeve structure of a worm structure with adjustable tooth position;

[0022] Figure 5 A schematic diagram of a worm sleeve structure of a worm structure with adjustable tooth positions;

[0023] Figure 6 for Figure 2 A magnified schematic diagram of the structure in Figure 1.

[0024] In the figure: 1, connecting rod; 101, rod body; 102, threaded groove; 103, sliding groove; 2, connecting sleeve;

[0025] 201, sleeve body; 202, slider; 203, swivel; 204, positioning hole; 205, fixing block; 206, corresponding clamping block; 3, worm sleeve; 301, sleeve rod; 302, teeth; 303, corresponding clamping groove; 304, fixing plate; 305, corresponding pin hole; 306, threaded block; 4, limit pin. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 6 , the utility model provides the following six preferred embodiments:

[0028] Embodiment 1

[0029] A worm structure with adjustable tooth position includes a connecting sleeve 2 and a worm sleeve 3. There are two connecting sleeves 2, which are symmetrically arranged at the front and rear ends of the worm sleeve 3. A connecting rod 1 is arranged inside the connecting sleeve 2. A worm sleeve 3 is arranged on the circumferential surface of the connecting rod 1. A limiting pin 4 is arranged on the circumferential surface of the worm sleeve 3. The connecting sleeve 2 and the worm sleeve 3 are connected through the limiting pin 4. There are four limiting pins 4, which are arranged in a circular array on the circumferential surface of the worm sleeve 3. The limiting pin 4 passes through the corresponding pin hole 305 of the worm sleeve 3 and the positioning hole 204 of the connecting sleeve 2 to firmly connect the two to prevent relative rotation and ensure the stability of the transmission.

[0030] Embodiment 2

[0031] On the basis of Example 1, the connecting rod 1 includes a rod body 101, a threaded groove 102 and a sliding groove 103. The rod body 101 serves as the core supporting component of the entire structure, bearing and transmitting the torque from the worm sleeve 3. A threaded groove 102 is arranged on the circumferential surface of the rod body 101. The threaded groove 102 cooperates with the threaded block 306 inside the worm sleeve 3 to realize the rotational transmission of the worm and allow the position of the worm sleeve 3 on the rod body to be adjusted by rotation. A sliding groove 103 is arranged on the circumferential surface of the rod body 101. The sliding groove 103 provides a sliding track for the slider 202 in the connecting sleeve 2 to ensure that the connecting sleeve 2 can move smoothly along the rod body 101, thereby adjusting the axial position of the worm sleeve 3. There are two sliding grooves 103, which are symmetrically arranged on the circumferential surface of the rod body 101.

[0032] Embodiment 3

[0033] On the basis of the first embodiment, the connecting sleeve 2 includes a sleeve body 201, a slider 202, a swivel 203, a positioning hole 204, a fixed block 205 and a corresponding block 206. The sleeve body 201 surrounds and fixes the slider 202 as a transition component between the connecting rod 1 and the worm sleeve 3. The interior of the sleeve body 201 is fixedly connected with the slider 202, and the slider 202 slides in the sliding groove 103 to achieve relative movement between the connecting sleeve 2 and the connecting rod 1. There are two sliders 202, which are symmetrically arranged inside the sleeve body 201. The slider 202 is slidably connected to the sliding groove 103. The swivel 203 is sleeved on the circumferential surface of the sleeve body 201. The swivel 203 provides support for the positioning hole 204, which is convenient for connection with the corresponding pin hole 305 of the worm sleeve 3 through the limit pin 4, and the enhanced structure In order to ensure the stability of the rotating ring 203, a positioning hole 204 is provided on the circumferential surface of the rotating ring 203, and the positioning hole 204 cooperates with the corresponding pin hole 305 of the worm sleeve 3. The position of the worm sleeve 3 is fixed by the limit pin 4 to prevent it from rotating. There are four positioning holes 204, which are arranged in a circular array on the circumferential surface of the rotating ring 203. The rear end of the sleeve body 201 is fixedly connected with a fixing block 205, and the fixing block 205 is engaged with the corresponding slot 303 of the worm sleeve 3 to further fix the position of the worm sleeve 3. The circumferential surface of the fixing block 205 is fixedly connected with a corresponding clamping block 206. There are multiple corresponding clamping blocks 206, which are arranged in a circular array on the circumferential surface of the fixing block 205. The cross section of the corresponding clamping block 206 is triangular, and its triangular cross section design provides an additional locking effect.

[0034] Embodiment 4

[0035] On the basis of the first embodiment, the worm sleeve 3 includes a sleeve rod 301, teeth 302, corresponding slots 303, a fixing plate 304, corresponding pin holes 305 and a threaded block 306. The sleeve rod 301 is used as a carrier of the teeth 302 to transmit power and rotational motion. The teeth 302 are fixedly connected to the circumferential surface of the sleeve rod 301. The teeth 302 are meshed with the worm wheel to achieve power transmission and speed conversion. The sleeve rod 301 is provided with a corresponding slot 303 inside, and the corresponding slot 303 is engaged with the fixing block 205. The front end of the sleeve rod 301 is fixedly connected to the fixing plate 304, and the fixing plate 304 provides the corresponding pin holes 305. The support enhances the connection strength between the worm sleeve 3 and the connecting sleeve 2. The fixed plate 304 is provided with a corresponding pin hole 305 inside. The corresponding pin hole 305 cooperates with the positioning hole 204 of the connecting sleeve 2. The position of the worm sleeve 3 is fixed by the limit pin 4. There are four fixed plates 304 and four corresponding pin holes 305, which are arranged in a circular array at the front end of the sleeve rod 301. The sleeve rod 301 is fixedly connected with a threaded block 306 inside. The threaded block 306 cooperates with the threaded groove 102 of the connecting rod 1 to realize the rotation and position adjustment of the worm sleeve 3 on the rod body. The threaded block 306 is threadedly connected to the threaded groove 102.

[0036] Embodiment 5

[0037] On the basis of the first embodiment, the corresponding pin hole 305 and the positioning hole 204 are arranged correspondingly, and the corresponding pin hole 305 and the positioning hole 204 are connected by a limiting pin 4 .

[0038] Embodiment 6

[0039] Based on the first embodiment, the spiral directions of the thread groove 102 and the tooth teeth 302 are opposite.

[0040] In actual use, the worm structure with adjustable tooth position realizes flexible adjustment of the worm tooth position through the mutual cooperation of the connecting rod 1, the connecting sleeve 2 and the worm sleeve 3. The threaded groove 102 on the connecting rod 1 cooperates with the threaded block 306 inside the worm sleeve 3, allowing the worm sleeve 3 to rotate on the rod body and adjust its axial position. The connecting sleeve 2 slides in the sliding groove 103 of the connecting rod 1 through the slider 202, and fixes the axial position of the worm sleeve 3 through the clamping connection of the fixing block 205 with the corresponding clamping groove 303. At the same time, the connecting sleeve 2 and the worm sleeve 3 are connected by a limit pin 4, which ensures the stability of the structure and the reliability of the transmission.

[0041] 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 worm structure with adjustable tooth position, characterized in that: The invention comprises a connecting sleeve (2) and a worm sleeve (3), wherein a connecting rod (1) is arranged inside the connecting sleeve (2), a worm sleeve (3) is arranged on the circumferential surface of the connecting rod (1), and a limiting pin (4) is arranged on the circumferential surface of the worm sleeve (3).

2. A worm structure with adjustable tooth position according to claim 1, characterized in that: The number of the connecting sleeves (2) is two and they are symmetrically arranged at the front and rear ends of the worm sleeve (3). The connecting sleeve (2) and the worm sleeve (3) are connected via limit pins (4). The number of the limit pins (4) is four and they are arranged in a circular array on the circumferential surface of the worm sleeve (3).

3. A worm structure with adjustable tooth position according to claim 1, characterized in that: The connecting rod (1) comprises a rod body (101), a thread groove (102) and a sliding groove (103); the thread groove (102) is arranged on the circumferential surface of the rod body (101); and the sliding groove (103) is arranged on the circumferential surface of the rod body (101).

4. A worm structure with adjustable tooth position according to claim 3, characterized in that: The number of the sliding grooves (103) is two and they are symmetrically arranged on the circumferential surface of the rod body (101).

5. The worm structure with adjustable tooth position according to claim 1, characterized in that: The connecting sleeve (2) comprises a sleeve body (201), a slider (202), a rotating ring (203), a positioning hole (204), a fixed block (205) and a corresponding clamping block (206); the interior of the sleeve body (201) is fixedly connected with the slider (202); the slider (202) is slidably connected with the sliding groove (103); the circumferential surface of the sleeve body (201) is sleeved with the rotating ring (203); the circumferential surface of the rotating ring (203) is provided with a positioning hole (204); the rear end of the sleeve body (201) is fixedly connected with the fixed block (205); the circumferential surface of the fixed block (205) is fixedly connected with the corresponding clamping block (206).

6. A worm structure with adjustable tooth position according to claim 5, characterized in that: The number of the sliders (202) is two and they are symmetrically arranged inside the sleeve (201); the number of the positioning holes (204) is four and they are arranged in a circular array on the circumferential surface of the rotating ring (203); the number of the corresponding clamping blocks (206) is multiple and they are arranged in a circular array on the circumferential surface of the fixed block (205); and the cross-section of the corresponding clamping blocks (206) is triangular.

7. The worm structure with adjustable tooth position according to claim 1, characterized in that: The worm sleeve (3) comprises a sleeve rod (301), teeth (302), a corresponding slot (303), a fixing plate (304), a corresponding pin hole (305) and a threaded block (306); the teeth (302) are fixedly connected on the circumferential surface of the sleeve rod (301); a corresponding slot (303) is arranged inside the sleeve rod (301); the corresponding slot (303) is engaged with the fixing block (205); the front end of the sleeve rod (301) is fixedly connected with the fixing plate (304); the fixing plate (304) is arranged inside with the corresponding pin hole (305); the sleeve rod (301) is fixedly connected with the threaded block (306); the threaded block (306) is threadedly connected with the thread groove (102).

8. The worm structure with adjustable tooth position according to claim 7, characterized in that: The number of the fixing plates (304) and the corresponding pin holes (305) is four, and they are arranged in a circular array at the front end of the sleeve rod (301).

9. A worm structure with adjustable tooth position according to claim 8, characterized in that: The corresponding pin hole (305) and the positioning hole (204) are arranged correspondingly, and the corresponding pin hole (305) and the positioning hole (204) are connected via a limiting pin (4).

10. The worm structure with adjustable tooth position according to claim 3, characterized in that: The spiral directions of the thread groove (102) and the tooth teeth (302) are opposite.

Images