High-strength drill bit cutting pick
By introducing a flexible connection between a retaining ring and a rubber ring, along with a limiting protrusion and a spring design into the drill bit cutting teeth, the problems of retaining ring wear and insufficient tooth shank connection strength are solved, resulting in a more stable drill bit cutting tooth connection.
Patent Information
- Application Number
- CN202520786398.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-24
AI Technical Summary
In existing drill bit cutting teeth, the retaining ring is prone to wear when the tooth sleeve is connected to the tooth seat, resulting in poor locking effect and insufficient connection strength between the tooth shank and the tooth sleeve.
The design employs a flexible connection between a retaining ring and a rubber ring, combined with a limiting protrusion and a spring, to ensure a stable connection between the retaining ring and the retaining ring groove. The limiting protrusion and the protruding groove further enhance the fixing effect between the toothed shank and the toothed sleeve.
It effectively avoids wear of the retaining ring, improves the locking effect, and enhances the connection strength between the tooth shank and the tooth sleeve, ensuring the stability and durability of the drill bit cutting teeth.
Smart Images
Figure CN223881175U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mining drill bit equipment technical field, specifically is a high strength drill bit cutting pick. BACKGROUND
[0002] The cutting pick is a tool used for cutting and excavating underground and rock. It is a long steel tube with sharp cutting teeth and cutting edges. Using the cutting pick, the ground or rock can be easily cut into blocks. The cutting pick is usually used in the fields of mining, oil well drilling and construction engineering.
[0003] The existing drill bit cutting pick, when the tooth sleeve is connected with the tooth holder, the lower end of the tooth sleeve and the tooth holder are limited and clamped by the snap ring, after the snap ring is clamped into the inside of the snap ring groove, the snap ring is easy to be rubbed and damaged, so that the clamping effect of the snap ring on the snap ring groove cannot be guaranteed, and meanwhile, the existing drill bit cutting pick, when the tooth handle and the tooth sleeve are connected through the clamping ring and the ring groove, the connection strength between the tooth handle and the tooth sleeve cannot be guaranteed. UTILITY MODEL CONTENT
[0004] The utility model solves the technical problem of overcoming the defects of the prior art and provides a high-strength drill bit cutting pick. The snap ring is connected to the snap ring groove through the rubber ring after being clamped into the snap ring groove, which avoids the friction and damage between the snap ring and the snap ring groove, ensures the clamping effect of the snap ring on the snap ring groove, and effectively solves the problems in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high-strength drill bit cutting pick, comprising a tooth handle and a tooth sleeve, a snap ring groove is formed in the outer ring side of the lower part of the tooth sleeve, a snap ring is installed in the snap ring groove, a rubber ring is arranged on the inner side of the snap ring, a ring groove is arranged on the inner side of the lower part of the tooth sleeve, a limiting protrusion is arranged on the side of the lower side of the ring groove, and a spring is installed on one side of the limiting protrusion.
[0006] Further, a tooth head is arranged on the upper end of the tooth handle, and a tooth tip is arranged at the center of the upper end of the tooth head.
[0007] Further, a clamping ring is arranged on the outer ring side of the lower part of the tooth handle, and a protruding groove is arranged on the outer ring side of the lower end of the tooth handle.
[0008] Further, a handle hole is arranged through the inner side of the tooth sleeve, and the tooth handle and the tooth sleeve are connected through the clamping ring and the ring groove.
[0009] Further, the limiting protrusion is fixedly connected with the spring, and the limiting protrusion is clamped and connected with the protruding groove.
[0010] Further, the tooth sleeve and the tooth holder are connected through the snap ring groove and the snap ring.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] 1、 the utility model discloses the card spring ring and rubber ring are set up, make the card spring ring after being clamped into the card spring groove, and the flexible connection is carried out between the card spring ring and the card spring groove through the rubber ring, avoid the friction damage between the card spring ring and the card spring groove, make the card solid effect of the card spring ring to the card spring groove be guaranteed.
[0013] 2、 the utility model discloses the convex groove, limit protrusion and spring are set up, make the tooth handle and tooth cover connect, and the limit protrusion is clamped into the convex groove under the action of the spring, make the tooth handle and tooth cover between the connection firm, guarantee the fixed effect of tooth handle. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the main view structural schematic diagram under the separation state of the utility model;
[0015] Figure 2 It is the main view structural schematic diagram under the separation state of the utility model; Figure 1 It is the main view structural schematic diagram under the separation state of the utility model;
[0016] Figure 3 It is the main view structural schematic diagram under the separation state of the utility model; Figure 1 It is the main view structural schematic diagram under the separation state of the utility model;
[0017] Figure 4 It is the main view structural schematic diagram under the separation state of the utility model; Figure 3 It is the main view structural schematic diagram under the separation state of the utility model;
[0018] In the drawing: 1, tooth head;2, tooth handle;3, clasp;4, tooth cover;5, tooth tip;6, card spring groove;7, card spring ring;8, rubber ring;9, handle hole;10, ring groove;11, limit protrusion;12, convex groove;13, spring. DETAILED DESCRIPTION
[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.
[0020] Please refer to Figures 1-4This embodiment provides a technical solution: a high-strength drill bit cutting tooth, including a tooth shank 2 and a tooth sleeve 4. A retaining ring groove 6 is provided on the lower outer ring side of the tooth sleeve 4. A retaining ring 7 is installed in the retaining ring groove 6. A rubber ring 8 is provided on the inner side of the retaining ring 7. An annular groove 10 is provided on the lower part of the inner side of the tooth sleeve 4. A limiting protrusion 11 is provided on the lower side of the annular groove 10. A spring 13 is installed on one side of the limiting protrusion 11.
[0021] like Figures 1-4 As shown, insert the toothed sleeve 4 into the toothed seat, use a tool to open the retaining ring 7, and then insert it into the retaining ring groove 6, so that the retaining ring 7 can stably lock the toothed sleeve 4 onto the toothed seat. The rubber ring 8 can flexibly connect the retaining ring 7 and the retaining ring groove 6, avoiding wear and damage to the retaining ring 7. After the toothed shank 2 is inserted into the shank hole 9, the retaining ring 3 is inserted into the ring groove 10. The limiting protrusion 11 on the lower side of the shank hole 9 is inserted into the protrusion groove 12 under the action of the spring 13, so that the toothed shank 2 and the toothed sleeve 4 have two connecting and locking structures, so that the toothed shank 2 and the toothed sleeve 4 are stably connected.
[0022] The upper end of the toothed shank 2 is provided with a tooth head 1, and the center of the upper end of the tooth head 1 is provided with a tooth tip 5.
[0023] A retaining ring 3 is provided on the lower outer ring side of the toothed shank 2, and a raised groove 12 is provided on the lower outer ring side of the toothed shank 2.
[0024] A shank hole 9 is provided through the inner side of the tooth sleeve 4, and the tooth shank 2 and the tooth sleeve 4 are connected by a retaining ring 3 and an annular groove 10.
[0025] The limiting protrusion 11 is fixedly connected to the spring 13, and the limiting protrusion 11 is slotted into the protrusion groove 12.
[0026] The gear sleeve 4 is connected to the gear seat via the snap ring groove 6 and the snap ring 7.
[0027] The working principle of the high-strength drill bit cutting tooth provided by this utility model is as follows: Figures 1-4 As shown, insert the toothed sleeve 4 into the toothed seat, use a tool to open the retaining ring 7, and then insert it into the retaining ring groove 6, so that the retaining ring 7 can stably lock the toothed sleeve 4 onto the toothed seat. The rubber ring 8 can flexibly connect the retaining ring 7 and the retaining ring groove 6, avoiding wear and damage to the retaining ring 7. After the toothed shank 2 is inserted into the shank hole 9, the retaining ring 3 is inserted into the ring groove 10. The limiting protrusion 11 on the lower side of the shank hole 9 is inserted into the protrusion groove 12 under the action of the spring 13, so that the toothed shank 2 and the toothed sleeve 4 have two connecting and locking structures, so that the toothed shank 2 and the toothed sleeve 4 are stably connected.
[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A high-strength drill bit cutting tooth, comprising a shank (2) and a sleeve (4), characterized in that: The lower outer ring side of the toothed sleeve (4) is provided with a retaining ring groove (6), a retaining ring (7) is installed in the retaining ring groove (6), a rubber ring (8) is provided on the inner side of the retaining ring (7), an annular groove (10) is provided on the lower part of the inner side of the toothed sleeve (4), a limiting protrusion (11) is provided on the lower side of the annular groove (10), and a spring (13) is installed on one side of the limiting protrusion (11).
2. The high-strength drill bit cutting tooth according to claim 1, characterized in that: The upper end of the toothed shank (2) is provided with a tooth head (1), and the center of the upper end of the tooth head (1) is provided with a tooth tip (5).
3. A high-strength drill bit cutting tooth according to claim 1, characterized in that: A retaining ring (3) is provided on the lower outer ring side of the toothed shank (2), and a protruding groove (12) is provided on the lower outer ring side of the toothed shank (2).
4. A high-strength drill bit cutting tooth according to claim 3, characterized in that: The toothed sleeve (4) has a through hole (9) on its inner side, and the toothed shank (2) is connected to the toothed sleeve (4) through the retaining ring (3) and the annular groove (10).
5. A high-strength drill bit cutting tooth according to claim 3, characterized in that: The limiting protrusion (11) is fixedly connected to the spring (13), and the limiting protrusion (11) is slotted into the protrusion groove (12).
6. A high-strength drill bit cutting tooth according to claim 1, characterized in that: The toothed sleeve (4) is connected to the toothed seat through the snap ring groove (6) and the snap ring ring (7).