Wire feeding gear structure capable of rapidly replacing wire feeding wheel
By designing a rotating sleeve and a limiting block in the wire feeding gear structure, the problem of needing tools to replace the wire feeding wheel was solved, enabling rapid installation and disassembly and improving welding efficiency.
Patent Information
- Application Number
- CN202520050212.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-09
AI Technical Summary
The replacement of the wire feed rollers in existing welding machines requires the use of tools, which makes disassembly difficult and time-consuming, affecting welding efficiency.
A wire feeding gear structure was designed, which enables the quick installation and removal of the wire feeding wheel through the cooperation of the rotating sleeve and the limiting block, eliminating the need for tool operation.
It enables quick replacement of the wire feeding wheel, improves the efficiency of welding operations, and meets the needs of construction.
Smart Images
Figure CN223917018U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a mechanical structure, especially a gear structure, in particular to a wire feeding gear structure capable of quickly replacing a wire feeding wheel. BACKGROUND
[0002] Most modern welding machines use wire feeding mechanisms to transport welding wire. The wire feeding mechanism is mainly composed of a wire feeding wheel and a wire feeding gear. At present, the wire feeding wheel is usually directly fixed on the wire feeding gear by screws. As a consumable part, the wire feeding wheel needs to be frequently disassembled and replaced. Therefore, tools are needed when disassembling, and manual operation is not possible. However, due to the harsh environment of the welding site, the disassembly tools are often not quickly available and are easy to lose, resulting in that the replacement of the wire feeding wheel is mostly time-consuming and laborious, affecting the progress of the welding construction.
[0003] Therefore, it is urgent to improve it in order to better meet the needs of welding construction. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at the problems encountered in the replacement process of the wire feeding wheel in the current welding device, and provides a wire feeding gear structure capable of quickly replacing the wire feeding wheel. The wire feeding wheel can be quickly disassembled or installed on the wire feeding gear without using tools, greatly improving the operation efficiency and fully meeting the construction needs.
[0005] The technical scheme of the utility model is:
[0006] A wire feeding gear structure capable of quickly replacing a wire feeding wheel, comprising:
[0007] A wire feeding gear having a cylindrical boss on one side; the boss is concentric with the wire feeding gear, and the outer diameter of the boss is smaller than the root circle of the wire feeding gear; a plurality of protrusions are arranged on the outer wall of the boss in the axial direction of the boss; and a connecting portion is arranged at the outer end of the boss;
[0008] The wire feeding wheel is short-cylindrical, and the inner diameter and width of the wire feeding wheel are comparable to the outer diameter and length of the boss, respectively; a plurality of limiting grooves are arranged on the inner wall of the wire feeding wheel in the axial direction of the wire feeding wheel; the shape, number and position of the limiting grooves correspond to those of the protrusions, so that the wire feeding wheel can be movably sleeved on the boss along the protrusions;
[0009] The fixing sleeve is short-cylindrical, can be sleeved on the connecting portion, and is firmly connected with the connecting portion by a key connection method; and
[0010] The rotating sleeve is short-cylindrical, and its inner diameter and width are adapted to the outer diameter and width of the fixed sleeve, and the rotating sleeve is movably sleeved on the fixed sleeve, and the outer end of the rotating sleeve is clamped with the flange arranged at the outer end of the fixed sleeve; the outer diameter of the rotating sleeve is smaller than the inner diameter of the wire feeding wheel, and at least one limiting block is arranged on the outer wall of the rotating sleeve; the limiting block can abut against the end face of the wire feeding wheel to prevent the wire feeding wheel from moving axially, and the axial projection of the rotating sleeve is the same as the end face shape of the limiting groove.
[0011] Further, the protrusions and the limiting grooves are three groups, and are uniformly distributed along the circumferences of the wire feeding gear and the wire feeding wheel, respectively.
[0012] Further, the connecting part comprises three groups of key handles and three groups of buckles; three groups of key grooves and three groups of buckle grooves are arranged on the inner wall of the fixed sleeve; the key grooves and the buckle grooves correspond to the key handles and the buckles respectively, so that the key handles are inserted into the key grooves, and the buckles are clamped in the buckle grooves, so that the fixed sleeve can rotate with the wire feeding gear, and the fixed sleeve is prevented from being axially separated from the wire feeding gear.
[0013] Further, the limiting blocks are three groups, and are uniformly distributed along the circumference of the rotating sleeve.
[0014] Further, the limiting blocks are straight strips, and the cross section of the limiting blocks is arc-shaped and is adapted to the limiting groove.
[0015] Further, the outer wall of the fixed sleeve is provided with three convex ridges arranged along the axial direction of the fixed sleeve; the convex ridges are uniformly distributed along the circumference of the fixed sleeve, and the diameter of the circumscribed circle of the convex ridges is greater than the inner diameter of the rotating sleeve; six groups of recesses are arranged on the inner wall of the rotating sleeve; the recesses are uniformly distributed along the circumference of the rotating sleeve, and the diameter of the circumscribed circle of the recesses is greater than the diameter of the circumscribed circle of the convex ridges.
[0016] Further, the recesses are aligned with the limiting blocks.
[0017] Further, the inner wall of the outer end of the rotating sleeve is stepped, facilitating clamping with the flange, and the outer end of the flange is flush with the outer end of the rotating sleeve.
[0018] Further, the flanges are a plurality of blocks, and are uniformly and spacedly arranged along the circumference of the fixed sleeve.
[0019] The beneficial effects of the utility model are as follows:
[0020] The utility model discloses a reasonable design, simple structure, convenient to use can through the rotation of the rotating cover, and the limiting block is against on the wire feeding wheel and makes the wire feeding wheel fixed on the wire feeding gear, or, through the rotation of the rotating cover, and the limiting block is aligned to the limiting slot on the wire feeding wheel and removes the wire feeding wheel from the wire feeding gear, thereby, can not use the tool to install or dismount the wire feeding wheel, greatly improves the operation efficiency, and fully satisfies the demand of the welding construction. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the explosion schematic drawing of the utility model.
[0022] Figure 2 It is the assembled schematic drawing (locking state) of the utility model.
[0023] Among them, 1-wire feeding gear;101-turret;102-key handle;103-buckle;104-bump;2-fixed cover;201-card slot;202-key groove;203-flange;204-bump;3-rotating cover;301-groove;302-limiting block;4-wire feeding wheel;401-limiting slot. DETAILED DESCRIPTION
[0024] The utility model will be further explained in connection with the drawings and examples.
[0025] As Figure 1 And 2 Indicated.
[0026] A wire feeding gear structure that can quickly replace the wire feeding wheel, comprising: wire feeding gear 1, wire feeding wheel 4, fixed cover 2 and rotating cover 3.
[0027] One side of the wire feeding gear 1 is provided with a cylindrical boss 101. The boss 101 is concentric with the wire feeding gear 1, and the outer diameter is smaller than the dedendum circle of the wire feeding gear 1, and three bumps 104 are arranged on the outer wall. The bump 101 is a straight rod, the cross section is a circular arc, is arranged along the axis of the boss 101, and is evenly distributed along the circumference of the boss 101.
[0028] The wire feeding wheel 4 is short cylindrical, and the inner diameter and width are respectively equivalent to the outer diameter and length of the boss 101, and three limiting grooves 401 are arranged on the inner wall. The limiting groove 401 is a straight groove, the cross section is a circular arc, and the cross section shape is the same as the bump 104. The limiting groove 401 is arranged along the axis of the wire feeding wheel 4, and is evenly arranged along the circumference of the wire feeding wheel 4. Thus, the wire feeding wheel 4 can be movably sleeved on the boss 101 along the bump 104.
[0029] The fixed sleeve 2 is short cylindrical, and three convex ridges 204 are arranged on the outer wall thereof. The convex ridges 204 are linear blocks, and the cross section thereof is circular arc. The convex ridges 204 are arranged along the axial direction of the fixed sleeve 2, and are uniformly distributed along the circumferential direction of the fixed sleeve 2. The fixed sleeve 2 is sleeved on the connecting part arranged on the outer end of the boss 101.
[0030] The connecting part comprises three groups of key handles 102 and three groups of buckles 103. The key handles 102 and the buckles 103 are uniformly distributed along the circumferential direction of the boss 101 respectively. Moreover, the key handles 102 and the buckles 103 are arranged alternately. Meanwhile, three groups of key grooves 202 and three groups of buckle grooves 201 are arranged on the inner wall of the fixed sleeve 2. The key grooves 202 and the buckle grooves 201 correspond to the key handles 102 and the buckles 103 respectively, so that the key handles 102 can be inserted into the key grooves 202 to realize key connection, and the fixed sleeve 2 can rotate with the wire feeding gear 1. Meanwhile, the buckles 103 are clamped in the buckle grooves 201, so that the fixed sleeve 2 cannot be removed by moving along the axial direction of the wire feeding gear 1.
[0031] The rotating sleeve 3 is short cylindrical, and the inner diameter thereof is adapted to the outer diameter of the fixed sleeve 2, and is slightly smaller than the diameter of the circumscribed circle of the convex ridges 204. Meanwhile, six groups of grooves 301 are arranged on the inner wall of the rotating sleeve 3. The shape and size of the grooves 301 are adapted to the convex ridges 204, and the grooves 301 are uniformly distributed along the circumferential direction of the rotating sleeve 3, so that the rotating sleeve 3 can be movably sleeved on the fixed sleeve 2, and the grooves 301 correspond to the convex ridges 204 in clearance fit. When the rotating sleeve 3 rotates around the fixed sleeve 2 to misalign the grooves 301 and the convex ridges 204, the inner wall of the rotating sleeve 3 is in interference fit with the convex ridges 204, and the difference in hand feeling caused thereby can provide position indication for the rotation of the rotating sleeve 3, that is, the central angle between adjacent grooves 301 is 60°.
[0032] The width of the rotating sleeve 3 is the same as the width of the fixed sleeve 2, and the inner wall of the outer end thereof is stepped. Meanwhile, a flange 203 is arranged on the outer end of the fixed sleeve 2. When the rotating sleeve 3 is sleeved on the fixed sleeve 2, the flange can be clamped at the step of the outer end of the rotating sleeve 3, so that the rotating sleeve 3 cannot be removed from the fixed sleeve 2 by axial movement. Moreover, the outer end of the flange 203 is flush with the outer end of the rotating sleeve 3, which facilitates installation and improves the aesthetic appearance. Preferably, the flange 203 is multiple, and is a block, which is uniformly and spacedly arranged along the circumferential direction of the fixed sleeve 3, facilitating use.
[0033] The outer wall of the rotating sleeve 3 is provided with three groups of limiting blocks 302. The limiting blocks 302 are all straight strips, the cross section of which is arc-shaped and is adapted to the limiting grooves 401. The limiting blocks 302 are uniformly distributed along the circumference of the rotating sleeve 3, the diameter of the circumscribed circle of which is greater than the inner diameter of the wire feeding wheel 4 and is less than the diameter of the circumscribed circle of the limiting grooves 401. Thus, one end of the limiting block 302 close to the wire feeding gear 1 can abut against the end face of the wire feeding wheel 4 to prevent the axial movement of the wire feeding wheel 4. When the rotating sleeve 3 is rotated to the position that the limiting blocks 302 are aligned with the limiting grooves 401, the wire feeding wheel 4 can be moved along the limiting blocks 302 to be detached from the wire feeding gear 1. Preferably, the limiting blocks 302 are aligned with three groups of the grooves 301, which facilitates the operation.
[0034] In the embodiment, the wire feeding gear is made by powder metallurgy gear injection molding. The wire feeding wheel is made of GCr15 bearing steel. The rest of the structure is made by injection molding.
[0035] The working process of the utility model is as follows:
[0036] When the wire feeding wheel is installed, first, the groove of the rotating sleeve is aligned with the convex rib on the fixed sleeve, the rotating sleeve is sleeved on the fixed sleeve, and the flange on the fixed sleeve is clamped at the outer end step of the rotating sleeve. Then, the fixed sleeve is connected with the connecting part on the wire feeding gear, and the key grooves and key handles, and the clamping grooves and clamping buckles of the two are correspondingly connected in place. Finally, the rotating sleeve is rotated, the limiting blocks thereon are aligned with the protrusions on the wire feeding gear, and the limiting grooves of the wire feeding wheel are moved along the limiting blocks and the protrusions, so that the wire feeding wheel is sleeved on the boss of the wire feeding gear, and the rotating sleeve is rotated again to correspond to the adjacent convex rib of the groove. At this time, the limiting blocks are misaligned with the limiting grooves, and abut against the wire feeding wheel, so that the wire feeding wheel is locked.
[0037] When the wire feeding wheel is detached, the rotating sleeve is rotated to correspond to the adjacent convex rib of the groove. At this time, the limiting blocks are aligned with the limiting grooves again, so that the wire feeding wheel is unlocked, and the wire feeding wheel can be moved along the limiting blocks, so that the wire feeding wheel can be detached.
[0038] In summary, the utility model only needs to manually rotate the rotating sleeve, so that the wire feeding wheel can be locked and installed on the wire feeding gear, or the wire feeding wheel can be unlocked and detached from the wire feeding gear, which saves the complexity of using tools in the past and greatly facilitates the installation and removal operation of the wire feeding wheel, and creates favorable conditions for improving the construction efficiency of welding.
[0039] The parts not involved in the utility model are the same as or can be realized by the prior art.
Claims
1. A wire feeding gear structure capable of quickly replacing a wire feeding wheel, characterized in that, The application relates to a wire feeding device, which comprises the following parts: a wire feeding gear provided with a cylindrical boss on one side; the boss is concentric with the wire feeding gear, the outer diameter of the boss is smaller than the dedendum circle of the wire feeding gear, and a plurality of protrusions are arranged on the outer wall of the boss along the axial direction of the boss, and a connecting part is arranged on the outer end of the protrusion; a wire feeding wheel which is a short cylinder, the inner diameter and the width of the wire feeding wheel are respectively equal to the outer diameter and the length of the boss, a plurality of limiting grooves are arranged on the inner wall of the wire feeding wheel along the axial direction of the wire feeding wheel, the shape, the number and the position of the limiting grooves are corresponding to the protrusions, the wire feeding wheel can be movably sleeved on the boss along the protrusions, and the wire feeding wheel and the wire feeding gear can rotate synchronously; the protrusions and the limiting grooves are all three groups, and are uniformly distributed along the circumferential direction of the wire feeding gear and the wire feeding wheel respectively; a fixing sleeve which is a short cylinder, can be sleeved on the connecting part, and is firmly connected with the connecting part through a key connection mode; and a rotating sleeve which is a short cylinder, the inner diameter and the width of the rotating sleeve are respectively adapted to the outer diameter and the width of the fixing sleeve, the rotating sleeve can be movably sleeved on the fixing sleeve, the outer end of the rotating sleeve is clamped with a flange arranged at the outer end of the fixing sleeve, the outer diameter of the rotating sleeve is smaller than the inner diameter of the wire feeding wheel, and at least one limiting block is arranged on the outer wall of the rotating sleeve; the limiting block can abut against the end face of the wire feeding wheel to prevent the wire feeding wheel from moving axially, and the axial projection of the limiting block is the same as the end face shape of the limiting groove.
2. The wire-feeding gear structure with a wire-feeding gear that can be quickly replaced according to claim 1, characterized in that, The connecting part comprises three groups of key handles and three groups of buckles; three groups of key grooves and three groups of buckle grooves are arranged on the inner wall of the fixing sleeve; the key grooves and the buckle grooves are corresponding to the key handles and the buckles respectively, the key handles are inserted into the key grooves, and the buckles are clamped in the buckle grooves, so that the fixing sleeve can rotate with the wire feeding gear, and the fixing sleeve is prevented from axially falling off from the wire feeding gear.
3. The wire-feeding gear structure with a wire-feeding gear that can be quickly replaced according to claim 1, characterized in that, The limiting blocks are three groups, and are uniformly distributed along the circumferential direction of the rotating sleeve.
4. The wire-feeding gear structure with a wire-feeding gear that can be quickly replaced according to claim 1, characterized in that, The limiting blocks are straight strips, the cross section of the limiting blocks is arc-shaped, and the limiting blocks are adapted to the limiting grooves.
5. The wire-feeding gear structure with a wire-feeding gear that can be quickly replaced according to claim 1, characterized in that, Three protrusions are arranged on the outer wall of the fixing sleeve along the axial direction of the fixing sleeve; the protrusions are uniformly distributed along the circumferential direction of the fixing sleeve, the diameter of the circumscribed circle of the protrusions is greater than the inner diameter of the rotating sleeve; six groups of grooves are arranged on the inner wall of the rotating sleeve; the grooves are uniformly distributed along the circumferential direction of the rotating sleeve, and the diameter of the circumscribed circle of the grooves is greater than the diameter of the circumscribed circle of the protrusions.
6. The wire-feeding gear structure with a wire-feeding gear that can be quickly replaced according to claim 5, characterized in that, The grooves are aligned with the limiting blocks.
7. The wire-feeding gear structure with a wire-feeding gear that can be quickly replaced according to claim 1, characterized in that, The inner wall of the outer end of the rotating sleeve is in a stepped shape, the outer end of the rotating sleeve is clamped with the flange, and the outer end of the flange is flush with the outer end of the rotating sleeve.
8. The wire-feeding gear structure with a wire-feeding gear that can be quickly replaced according to claim 1, characterized in that, The flanges are a plurality of blocks, and are uniformly and interval arranged along the circumferential direction of the fixing sleeve.