A slip ring gap adjustment structure

Abstract

The application discloses a sliding ring gap adjusting structure and relates to the technical field of seed meters. The sliding ring is sleeved on the back plate bearing seat, is fixedly connected with the back plate bearing seat in the circumferential direction and can axially slide relative to the back plate bearing seat. The screw post is fixed on the back plate bearing seat. The bolt is threadedly connected with the screw post. The connecting piece comprises a screw sleeve, a convex ring and a twisting block which are coaxially arranged. The screw sleeve is threadedly connected with the screw post. The screw sleeve and the twisting block are fixedly connected with the convex ring at one end, respectively. The through hole is arranged on the sliding ring and corresponds to the screw sleeve. The screw sleeve passes through the through hole. The diameter of the convex ring is larger than that of the through hole. The through hole is located between the screw post and the convex ring. The convex ring is in abutment with the sliding ring. The knob comprises a screwing part and a clamping part which can be clamped in the circumferential direction on the twisting block. The screwing part is provided with a screwing opening. The limiting sheet is connected with the sliding ring through the screw. The limiting sheet is used for limiting the rotation of the screwing part. The size of the finger clamping opening of the finger clamping type seed meter is conveniently adjusted.

Description

Technical Field

[0001] This invention relates to the field of seed metering technology, and in particular to a slip ring gap adjustment structure. Background Technology

[0002] Existing seed metering methods for seeders include scoop wheel type, finger clamp type, scoop clamp type, air suction type, and air blow type. Although scoop wheel type, finger clamp type, and scoop clamp type seed meterers have greatly improved seeding speed and accuracy compared to traditional seeding methods, they still have certain defects in performance and structure. For example, scoop wheel type seed meterers are not suitable for high-speed seeding and have poor vibration resistance. Finger clamp type and scoop clamp type seed meterers have improved seeding speed and accuracy compared to scoop type seed meterers, but they are still far behind air suction type seed meterers in performance. Finger clamp type and scoop clamp type seed meterers have more severe wear between parts in their mechanical structure and require more power from the drive unit. Air suction type seed meterers have the best performance among these seed meterers. Air suction type seed meterers also have their application limitations, such as requiring high power from the matching agricultural machinery and not being suitable for use with low-horsepower agricultural machinery. Seeders with 4 rows or less basically use scoop wheel type, finger clamp type, or scoop clamp type seed meterers. Among these three types of seed meterers, finger clamp type seed meterers have the best performance.

[0003] The existing finger clamp seed metering device uses the inner side of the finger clamp plate as a reference to adjust the size of the finger clamp opening. Therefore, the back of the slip ring and the inner side of the finger clamp plate are in surface friction, which causes severe wear on the finger clamp plate and the finger clamp slip ring. Moreover, when it is necessary to adjust the size of the finger clamp opening, a shim needs to be installed between the finger clamp plate and the finger clamp slip ring to adjust the size of the finger clamp opening, making it extremely inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to provide a slip ring gap adjustment structure to solve the problems existing in the prior art and facilitate the adjustment of the finger clamp opening size of the finger clamp seed metering device.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] This invention provides a slip ring clearance adjustment structure, comprising:

[0007] Backplate bearing housing for fixing to the backplate;

[0008] A slip ring is sleeved on the back plate bearing seat, the slip ring is circumferentially fixedly connected to the back plate bearing seat, and the slip ring is axially sliding relative to the back plate bearing seat;

[0009] Studs fixed to the back plate bearing housing;

[0010] Bolts threadedly connected to the stud;

[0011] A connector includes a threaded sleeve, a convex ring, and a screw block arranged coaxially. The threaded sleeve is threadedly connected to the stud. One end of the threaded sleeve and the screw block are respectively fixed to the convex ring. The convex ring is located between the threaded sleeve and the screw block. A through hole is provided on the slip ring corresponding to the threaded sleeve. The threaded sleeve passes through the through hole. The diameter of the convex ring is larger than the diameter of the through hole, and the through hole is located between the stud and the convex ring. The convex ring abuts against the slip ring.

[0012] A knob, comprising a screwing part and a snap-fit ​​part capable of circumferentially engaging with the screw block, the knob being integrally formed, the screwing part having a screwing opening, the screwing opening being polygonal in shape;

[0013] A limiting piece is provided, which is detachably connected to the slip ring by a screw. The limiting piece is provided with a notch for limiting the rotation of the screwing part, and the screwing part is wholly or partially located in the notch.

[0014] Preferably, the back plate bearing seat is provided with a groove; the slip ring is provided with a locking block, and the locking block engages with the groove.

[0015] Preferably, it also includes a spring, and the screw block is provided with a blind hole, the spring part is disposed in the blind hole, one end of the spring abuts against the closed end of the blind hole, and the other end abuts against the snap-fit ​​part.

[0016] Preferably, the back plate bearing seat is fixedly connected to the back plate of the finger clamp seed metering device, and is rotatably engaged with the input shaft of the finger clamp seed metering device through the bearing.

[0017] Preferably, the screw block is a regular hexagonal prism.

[0018] Preferably, the screw hole is triangular.

[0019] The present invention achieves the following technical effects compared to the prior art:

[0020] The slip ring gap adjustment structure of the present invention can drive the connector to rotate by rotating the knob, thereby adjusting the length of the threaded connection between the threaded sleeve and the stud in the connector, thereby adjusting the gap between the slip ring and the back plate, and thus realizing the adjustment of the finger clamp opening size of the finger clamp that cooperates with the slip ring.

[0021] Furthermore, during adjustment, there is no need to disassemble the slip ring or add a shim between the slip ring and the back plate, making it convenient to use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the slip ring gap adjustment structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the slip ring gap adjustment structure of the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the AA cross-section;

[0026] Figure 4 for Figure 2 BB cross-sectional diagram;

[0027] Figure 5 This is a partial structural schematic diagram of the slip ring gap adjustment structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the back plate bearing seat in the slip ring clearance adjustment structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the slip ring in the slip ring clearance adjustment structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the slip ring in the slip ring clearance adjustment structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the connecting member in the slip ring clearance adjustment structure of the present invention;

[0032] Figure 10 This is a schematic diagram of the connecting member in the slip ring clearance adjustment structure of the present invention;

[0033] Figure 11 This is a schematic diagram of the knob in the slip ring gap adjustment structure of the present invention;

[0034] Figure 12 This is a schematic diagram of the knob in the slip ring gap adjustment structure of the present invention;

[0035] Among them, 1. slip ring; 101. through hole; 102. placement groove; 103. locking block; 2. back plate bearing seat; 201. bearing seat body; 202. bearing seat flange; 203. locking groove; 3. input shaft; 4. knob; 401. screwing part; 402. locking part; 403. screwing port; 5. limiting piece; 6. screw; 7. spring; 8. connecting piece; 801. screwing block; 802. convex ring; 803. threaded sleeve; 804. blind hole; 9. stud; 10. bolt. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] The purpose of this invention is to provide a slip ring gap adjustment structure to solve the problems existing in the prior art and facilitate the adjustment of the finger clamp opening size of the finger clamp seed metering device.

[0038] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] like Figures 1-12 As shown, this embodiment provides a slip ring clearance adjustment structure, including a back plate bearing seat 2, a slip ring 1, a stud 9, a bolt 10, a connector 8, a spring 7, a knob 4, and a limiting piece 5.

[0040] The back plate bearing seat 2 includes a bearing seat body 201 and a bearing seat flange 202. The bearing seat flange 202 is fixedly connected to the back plate of the finger clamp seed metering device, and the bearing seat body 201 is rotatably engaged with the input shaft 3 of the finger clamp seed metering device through a bearing.

[0041] The slip ring 1 is sleeved on the bearing housing body 201 of the back plate bearing housing 2. The slip ring 1 is circumferentially fixedly connected to the bearing housing body 201 of the back plate bearing housing 2, and the slip ring 1 can slide axially relative to the back plate bearing housing 2.

[0042] Specifically, a groove 203 is provided on the back plate bearing seat 2; the length direction of the groove 203 is along the axial direction of the bearing seat, and a locking block 103 is provided on the slip ring 1. The locking block 103 engages with the groove 203, but the locking block 103 can slide along the axial direction of the back plate bearing seat 2 in the groove 203.

[0043] One end of the stud 9 is threaded to the bearing seat flange 202 of the back plate bearing seat 2, and the other end extends out of the bearing seat flange 202. The bolt 10 is threaded to the part of the stud 9 that extends out of the bearing seat flange 202.

[0044] The connector 8 includes a threaded sleeve 803, a convex ring 802, and a screw block 801 arranged coaxially. The threaded sleeve 803 is threadedly connected to the stud 9. One end of the threaded sleeve 803 and the screw block 801 are fixedly connected to the convex ring 802. The convex ring 802 is located between the threaded sleeve 803 and the screw block 801. A through hole 101 is provided on the slip ring 1 corresponding to the threaded sleeve 803. The threaded sleeve 803 passes through the through hole 101. The diameter of the convex ring 802 is larger than the diameter of the through hole 101, and the through hole 101 is located between the stud 9 and the convex ring 802. The convex ring 802 abuts against the slip ring 1.

[0045] The knob 4 includes a screwing part 401 and a snap-fit ​​part 402 that can be circumferentially snapped onto the screw block 801. The knob 4 is integrally formed. The screwing part 401 is provided with a screwing opening 403, which is polygonal in shape. In this embodiment, the screwing opening 403 is triangular.

[0046] In this embodiment, the screw block 801 is a regular hexagonal prism, and the screwing part 401 is provided with a groove of the same shape and size as the screw block 801.

[0047] A blind hole 804 is provided on the screw block 801. A spring 7 is partially disposed in the blind hole 804. One end of the spring 7 abuts against the closed end of the blind hole 804, and the other end abuts against the snap-fit ​​part 402.

[0048] The limiting piece 5 is detachably connected to the slip ring 1 by a screw 6. The limiting piece 5 is provided with a notch for limiting the rotation of the screwing part 401, and the screwing part 401 is located entirely or partially in the notch. In this embodiment, the slip ring 1 is provided with a placement groove 102 corresponding to the limiting piece 5, and the limiting piece 5 is locked in the placement groove 102.

[0049] The method of using the slip ring gap adjustment structure in this embodiment is as follows:

[0050] When it is necessary to increase the gap between the slip ring 1 and the back plate, firstly, unscrew the screw 6 and remove the limiting piece 5 from the placement groove 102. Then, press the knob 4 with a wrench or other tools so that the locking part 402 of the knob 4 is fitted onto the screw block 801 of the connector 8. Then, rotate the screwing part 401 of the knob 4 with a wrench or other tools, and drive the connector 8 to rotate, thereby adjusting the length of the threaded connection between the threaded sleeve 803 and the stud 9 in the connector 8. Then, manually adjust the position of the slip ring 1 to adjust the gap between the slip ring 1 and the back plate. After the position of the slip ring 1 is adjusted to the correct position, rotate the bolt 10 on the stud 9 with a wrench or other tools so that the bolt 10 and the convex ring 802 in the connector 8 clamp the slip ring 1, thereby fixing the position of the slip ring 1 and adjusting the size of the finger clamp opening of the finger clamp that cooperates with the slip ring 1. Then, install the limiting piece 5 back on the placement groove 102.

[0051] When it is necessary to reduce the gap between the slip ring 1 and the back plate, firstly, use a wrench or other tools to rotate the bolt 10 on the stud 9, so that the bolt 10 moves away from the slip ring 1. The distance the bolt 10 moves should be equal to the value that the gap needs to be reduced. Then, unscrew the screw 6 and take out the limiting piece 5 from the placement groove 102. Then, use a wrench or other tools to press the knob 4, so that the locking part 402 of the knob 4 is fitted onto the screw block 801 of the connector 8. Then, use a wrench or other tools to rotate the screwing part 401 of the knob 4, and drive the connector 8 to rotate, so that the connector 8 moves toward the bolt 10. At the same time, the connector 8 drives the slip ring 1 to move toward the bolt 10, thereby adjusting the gap between the slip ring 1 and the back plate until the convex ring 802 in the connector 8 and the bolt 10 clamp the slip ring 1. This realizes the adjustment of the position of the slip ring 1, and thus realizes the adjustment of the finger opening size of the finger clip that cooperates with the slip ring 1. Then, the limiting piece 5 is reinstalled on the placement groove 102.

[0052] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A slip ring gap adjustment structure, characterized in that, include: Backplate bearing housing for fixing to the backplate; A slip ring is sleeved on the back plate bearing seat, the slip ring is circumferentially fixedly connected to the back plate bearing seat, and the slip ring is axially sliding relative to the back plate bearing seat; Studs fixed to the back plate bearing housing; Bolts threadedly connected to the stud; A connector includes a threaded sleeve, a convex ring, and a screw block arranged coaxially. The threaded sleeve is threadedly connected to the stud. One end of the threaded sleeve is fixedly connected to the convex ring. One end of the screw block is fixedly connected to the convex ring. The convex ring is located between the threaded sleeve and the screw block. A through hole is provided on the slip ring corresponding to the threaded sleeve. The threaded sleeve passes through the through hole. The diameter of the convex ring is larger than the diameter of the through hole, and the through hole is located between the stud and the convex ring. The convex ring abuts against the slip ring. A knob, comprising a screwing part and a snap-fit ​​part capable of circumferentially engaging with the screw block, the knob being integrally formed, the screwing part having a screwing opening, the screwing opening being polygonal in shape; A limiting piece is provided, which is detachably connected to the slip ring by a screw. The limiting piece is provided with a notch for limiting the rotation of the screwing part, and the screwing part is wholly or partially located in the notch.

2. The slip ring clearance adjustment structure according to claim 1, characterized in that: The back plate bearing seat is provided with a slot; the slip ring is provided with a block, and the block engages with the slot.

3. The slip ring clearance adjustment structure according to claim 1, characterized in that: It also includes a spring, and the screw block is provided with a blind hole. The spring is partially disposed in the blind hole, with one end of the spring abutting against the closed end of the blind hole and the other end abutting against the snap-fit ​​part.

4. The slip ring clearance adjustment structure according to claim 1, characterized in that: The back plate bearing seat is fixedly connected to the back plate of the finger clamp seed metering device, and rotates with the input shaft of the finger clamp seed metering device through the bearing.

5. The slip ring clearance adjustment structure according to claim 1, characterized in that: The screw block is a regular hexagonal prism.

6. The slip ring clearance adjustment structure according to claim 1, characterized in that: The screw hole is triangular.

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