Gear with detachable transmission connection structure and detaching method thereof

Abstract

The invention discloses a gear with a detachable transmission connection structure and a detaching method thereof, relates to the technical field of gear correlation, and aims to solve the problems that in the prior art, the gear rotating direction, the lining structure inserting direction and the gear structure inserting direction are kept consistent, and when the gear rotates, counter-acting force acts on the gear itself; and the connection between two gear structures becomes more and more unstable along with the use of the gears. The first half gear and the second half gear are fixed through two secondary fixing units, each secondary fixing unit comprises a front arc-shaped piece, a rear arc-shaped piece and a rotating shaft, and a secondary fixing rod is arranged on the other side between the front arc-shaped piece and the rear arc-shaped piece; a rectangular containing groove is formed in the secondary fixing rod in a penetrating mode, a rotating pressing strip is arranged in the rectangular containing groove and rotationally connected with the secondary fixing rod through a rotating shaft, and a torsional spring is arranged between the rotating pressing strip and the secondary fixing rod along the outer portion of the rotating shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of gears, and specifically to a gear with a detachable transmission connection structure and a method for disassembling the same. Background Art

[0002] A gear is a wheel-shaped mechanical part that relies on the meshing of teeth to transmit torque. By meshing with other toothed mechanical parts (such as another gear, rack, worm), it can achieve functions such as changing rotational speed and torque, changing the direction of motion, and changing the form of motion. Due to advantages such as high transmission efficiency, accurate transmission ratio, and large power range, gear mechanisms are widely used in industrial products. Their design and manufacturing levels directly affect the quality of industrial products. A gear usually consists of a cylindrical hub and teeth distributed around the hub, and can be single-stage or multi-stage to increase the transmission ratio. The materials of gears are usually steel, cast iron, or other hard alloys. Gear transmission plays an important role in fields such as machine tools, lifting machinery, printing machinery, textile machinery, automobiles, airplanes, agricultural machinery, mining machinery, and wind power generation.

[0003] The gear transmission connection structure refers to the connection and cooperation method between a gear and other transmission elements, which determines the efficiency and stability of gear transmission. In a complex mechanical system, the gear transmission connection structure may also include elements such as couplings, positioning pins, and keyways to ensure the accuracy and stability of gear transmission. Traditional gears are mostly of an integral structure. When a gear wears or fails and needs to be replaced, it is often necessary to disassemble and replace the entire gear transmission connection structure, which is rather cumbersome and may cause unnecessary damage to other parts. A detachable gear enables the separation of the gear body from the transmission connection structure. When the gear body is damaged, only the damaged gear body needs to be replaced, without the need to replace the entire gear transmission connection structure.

[0004] For example, the Chinese authorized patent with the publication number CN 204239622 U (a vehicle transmission box with detachable combined gears) includes an input shaft, on which a first-stage driving cylindrical gear is installed. The first-stage driving cylindrical gear meshes with a first-stage driven cylindrical gear, and a third-stage driving cylindrical gear meshes with a third-stage driven cylindrical gear; the first-stage driving cylindrical gear, the first-stage driven cylindrical gear, the third-stage driving cylindrical gear, and the third-stage driven cylindrical gear are of a detachable combined gear structure. The detachable combined gear structure includes an outer gear, an inner lining, and at least two positioning parts. Each lining part is movably connected through a lining connecting piece, and the concave cavities formed after the movable connection of the lining parts surround to form a central hole.

[0005] Although the above-mentioned prior art has the function of detachable gear body, two lining structures and two gear structures are provided respectively. The connection is realized by inserting the lining structure and clamping the lining structure inside the center of the gear structure, and the lining structure and the gear structure are fixed by the fixing structure. However, the rotation direction of the gear, the insertion direction of the lining structure, and the insertion direction of the gear structure are all the same. When the gear rotates, there is a reaction force acting on itself. After long-term use, the connection between the two gear structures becomes more and more unstable, and it may need to be replaced due to the unstable gear connection before the gear wears out. Summary of the Invention

[0006] The purpose of the present invention is to provide a gear with a detachable transmission connection structure and its disassembly method to solve the problem that the rotation direction of the gear, the insertion direction of the lining structure, and the insertion direction of the gear structure are all the same as mentioned in the above background technology. When the gear rotates, there is a reaction force acting on itself, and the connection between the two gear structures becomes more and more unstable with the use of the gear.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A gear with a detachable transmission connection structure, including a gear unit, the gear unit is composed of a first half gear and a second half gear, the first half gear and the second half gear have the same structure and are symmetrically arranged at the structural center;

[0008] The first half gear and the second half gear are fixed by two secondary fixing units. The secondary fixing unit includes a front arc piece, a rear arc piece and a rotating shaft. The front arc piece and the rear arc piece are respectively located at the front and rear ends of the gear unit, and the rotating shaft is connected to one side between the front arc piece and the rear arc piece. Rotating grooves are provided at the corresponding positions of the first half gear and the second half gear for the rotating shaft;

[0009] On the other side between the front arc piece and the rear arc piece, a secondary fixing rod is provided. Through holes are provided on the front arc piece and the rear arc piece for the secondary fixing rod to pass through. Secondary fixing grooves are provided at the corresponding positions of the first half gear and the second half gear for the secondary fixing rod; A rectangular accommodating groove is penetrated inside the secondary fixing rod, and a rotating pressing strip is arranged in the rectangular accommodating groove. The end face of the rotating pressing strip forms an outer arc-shaped advancing surface. The rotating pressing strip is rotatably connected to the secondary fixing rod through a rotating shaft, and a torsion spring is arranged along the outside of the rotating shaft between the rotating pressing strip and the secondary fixing rod;

[0010] Rotating limiting grooves are provided along the rotation path of the rotating pressing strip inside the first half gear and the second half gear;

[0011] A propulsion block is also arranged in the rectangular accommodating groove. The sum of the lengths of the propulsion block and the rotating pressing strip is less than the length of the rectangular accommodating groove. The outer end of the propulsion block is rotatably connected to a propulsion rod through a bearing. The other end of the propulsion rod extends forward through the secondary fixing rod, and the propulsion rod is threadedly connected to the secondary fixing rod.

[0012] Preferably, an installation head is fixed at the front end of the secondary fixing rod, a locking screw head is fixed at the front end of the propulsion rod, and a pressing nut is threadedly connected to the rear end of the secondary fixing rod after passing through the upper hole of the rear arc-shaped piece.

[0013] Preferably, the detachable gear of the transmission connection structure further includes a rear limiting unit. The rear limiting unit includes a rear basic ring. The front end of the rear basic ring is integrally connected with an intermediate embedding ring. Arc-shaped vertical plates are integrally connected to both sides of the intermediate embedding ring. The arc-shaped vertical plates are of a two-thirds annular structure.

[0014] Preferably, the detachable gear of the transmission connection structure further includes a front limiting unit. The front limiting unit includes a front cover. An annular embedding groove is opened at a position corresponding to the intermediate embedding ring on the end face of the front cover, and an arc-shaped embedding groove is opened at a position corresponding to the arc-shaped vertical plate on the end face of the front cover.

[0015] Preferably, a circular accommodating groove is commonly opened in the middle of the front and rear end faces of the first half gear and the second half gear. The front cover and the rear basic ring are respectively located inside the circular accommodating grooves at the front and rear ends. A middle through groove for the intermediate embedding ring to pass through is commonly penetrated inside the first half gear and the second half gear. Arc-shaped through grooves are penetrated at positions corresponding to the arc-shaped vertical plates on the first half gear and the second half gear. The sum of the depths of the arc-shaped through grooves and the arc-shaped embedding grooves is equal to the thickness of the arc-shaped vertical plate. Circular clamping blocks are formed along the arc-shaped through grooves on the first half gear and the second half gear.

[0016] Preferably, circular through grooves are opened on both the first half gear and the second half gear. There are four circular through grooves in total. The four circular through grooves are symmetrically arranged both vertically and horizontally. First insertion plates are fixed at the upper and lower ends of the rear end of the circular through grooves on the rear basic ring. The front end of the first insertion plate is integrally connected with a first limiting triangular block. Each group of two first limiting triangular blocks forms a buckle structure.

[0017] Preferably, rectangular slots are opened on the rear end face of the front cover along the outside of each group of two first limiting triangular blocks. The opening depth of the rectangular slots is equal to the thickness of the first limiting triangular blocks. Inner arc-shaped passing surfaces are formed on the inner end faces of each first insertion plate and the first limiting triangular block.

[0018] Preferably, through holes are formed in the end face of the rear basic ring along the rear ends of every two of the first insertion plates, and the through holes are smoothly connected to the inner arc-shaped through surface; at the rear end of the front cover, second insertion plates are fixed at both ends between every two of the first insertion plates, a second limiting triangular block is integrally connected to the rear end of each second insertion plate, a clamping structure is formed by every two of the second limiting triangular blocks, and a plurality of compression springs are arranged in an array between every two of the second insertion plates.

[0019] Preferably, a first key groove is formed in the inner surface of the middle embedded ring, a second key groove is formed in the inner surface of the front cover, and the second key groove and the first key groove are corresponding in the front and rear positions.

[0020] A disassembly method includes the following steps:

[0021] Step 1: Press the second limiting triangular block, the compression spring contracts, and pull the front limiting unit to move forward;

[0022] Step 2: Press the first limiting triangular block and pull the rear limiting unit to move backward;

[0023] Step 3: Rotate the locking screw head to drive the push rod to rotate. Due to the threaded connection relationship between the push rod and the secondary fixing rod and the bearing connection relationship between the push rod and the push block, pull the push block to move forward along the rectangular accommodating groove. After the pressing strip loses the pressure of the push block, it rotates and resets into the rectangular accommodating groove due to the elastic force of the torsion spring;

[0024] Step 4: Rotate the compression nut to make the compression nut disengage from the outside of the secondary fixing rod, and pull the secondary fixing rod forward to make the secondary fixing rod disengage from the secondary fixing groove;

[0025] Step 5: Remove the first half gear and the second half gear to complete the disassembly.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] (1) In this invention, the gear unit is composed of a first half-gear and a second half-gear with the same structure and central symmetry. The two half-gears are fixed by two secondary fixing units. The secondary fixing unit also includes a secondary fixing rod with a rectangular accommodating groove inside. A rotating pressing strip is installed in the groove. The rotating pressing strip is rotatably connected to the secondary fixing rod through a rotating shaft and is provided with a restoring force by a torsion spring. The gear unit is provided with a rotating limiting groove that matches the rotating pressing strip. The cooperation between the rotating pressing strip and the rotating limiting groove provides an additional fixing force for the gear. The force direction is perpendicular to the transmission direction of the first half-gear and the second half-gear, effectively resisting various acting forces during the transmission process, ensuring the stability of the transmission, and solving the problems that the rotation direction of the gear, the insertion direction of the inner lining structure, and the insertion direction of the gear structure are all consistent. When the gear rotates, there is a reaction force acting on itself, and the connection between the two gear structures becomes more and more unstable with the use of the gear.

[0028] (2) In this invention, the first insertion plate and the first limiting triangular block on the rear basic ring cooperate with the circular through grooves on the first half-gear and the second half-gear, and the second limiting triangular block on the front cover cooperates with the through opening on the rear basic ring to form a double snap structure, and there is a structural cooperation between the two snap structures. The design of the snap of the rear limiting unit and the front limiting unit not only provides accurate axial positioning for the gear unit, but also realizes firm fixation through the snap structure, simplifies the assembly process, and improves the bearing capacity of the gear.

[0029] (3) In this invention, by pressing the second limiting triangular block and the first limiting triangular block, the disassembly of the front limiting unit and the rear limiting unit can be conveniently realized. At the same time, by rotating the locking screw head and the pressing nut, the disassembly and assembly of the gear unit can be easily realized. This disassembly and installation method simplifies the operation process, reduces the operation difficulty, and reduces the maintenance cost.

[0030] (4) In this invention, the arc-shaped vertical plate, the arc-shaped through groove, and the arc-shaped embedding groove cooperate. Through the arc-shaped structure, the transmission effect among the three is more excellent, further enhancing the stability of the gear during rotation. Brief Description of the Drawings

[0031] Figure 1 It is a schematic diagram of the overall structure of the main perspective of the detachable gear of a transmission connection structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the overall structure of the rear perspective of the detachable gear of a transmission connection structure of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the rear limiting unit of the detachable gear of a transmission connection structure of the present invention;

[0034] Figure 4Schematic diagram of the front limit unit of a detachable gear of a transmission connection structure according to the present invention;

[0035] Figure 5 Schematic diagram of the gear unit of a detachable gear of a transmission connection structure according to the present invention;

[0036] Figure 6 Front view of a detachable gear of a transmission connection structure according to the present invention;

[0037] Figure 7 Cross-sectional view taken along line A-A of a detachable gear of a transmission connection structure according to the present invention;

[0038] Figure 8 Enlarged view of the structure at position B of a detachable gear of a transmission connection structure according to the present invention;

[0039] Figure 9 Schematic diagram of the secondary fixing unit of a detachable gear of a transmission connection structure according to the present invention.

[0040] In the figure: 1. Rear limit unit; 11. Rear basic ring; 1101. Through opening; 12. Intermediate insertion ring; 1201. First keyway; 13. Arc-shaped vertical plate; 14. First insertion plate; 15. First limit triangular block; 16. Inner arc-shaped passing surface; 2. Front limit unit; 21. Front cover; 2101. Rectangular slotted opening; 2102. Annular insertion groove; 2103. Second keyway; 2104. Arc-shaped insertion groove; 22. Second insertion plate; 23. Second limit triangular block; 24. Pressure spring; 3. Gear unit; 31. First half gear; 3101. Circular accommodating groove; 3102. Intermediate through groove; 3103. Arc-shaped through groove; 3104. Circular clamping block; 3105. Circular through groove; 3106. Secondary fixing groove; 3107. Rotating groove; 3108. Rotating limit groove; 32. Second half gear; 4. Secondary fixing unit; 41. Front arc-shaped piece; 42. Rear arc-shaped piece; 43. Rotating shaft; 44. Mounting head; 45. Secondary fixing rod; 4501. Rectangular accommodating groove; 46. Locking screw head; 47. Pushing rod; 48. Pushing block; 49. Rotating pressing strip; 4901. Outer arc-shaped pushing surface; 410. Rotating shaft; 411. Torsion spring; 412. Pressing nut. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0042] Please refer to Figures 1-9 , an embodiment provided by the present invention:

[0043] (1) Combination of gear unit and secondary fixed unit, such as Figure 1 , Figure 2 , Figure 5 , Figure 7 , Figure 8 and Figure 9 Shown

[0044] The gear unit 3 is composed of a first half gear 31 and a second half gear 32 of the same structure and symmetrically arranged. Two secondary fixing units 4 are respectively located at the front and rear ends of the gear unit 3, and are used to fix the first half gear 31 and the second half gear 32. The secondary fixing unit 4 includes a front arc-shaped piece 41, a rear arc-shaped piece 42 and a rotating shaft 43, and a secondary fixing rod 45 having a rotating pressing strip 49 and a pushing block 48.

[0045] The front arc-shaped piece 41 and the rear arc-shaped piece 42 are respectively located at the front and rear ends of the gear unit 3, and the rotating shaft 43 is connected to one side between the front arc-shaped piece 41 and the rear arc-shaped piece 42. A rotating groove 3107 is opened on the first half gear 31 and the second half gear 32 at a position corresponding to the rotating shaft 43.

[0046] A secondary fixing rod 45 is arranged on the other side between the front arc-shaped piece 41 and the rear arc-shaped piece 42; a hole groove for the secondary fixing rod 45 to pass through is arranged on the front arc-shaped piece 41 and the rear arc-shaped piece 42, and a secondary fixing groove 3106 is opened at a position corresponding to the secondary fixing rod 45 on the first half gear 31 and the second half gear 32, and a rectangular receiving groove 4501 is opened inside the secondary fixing rod 45. A rotating pressing strip 49 is arranged inside the rectangular receiving groove 4501, and the end surface of the rotating pressing strip 49 forms an outer arc-shaped propulsion surface 4901, which is rotatably connected with the secondary fixing rod 45 through the rotating shaft 410, and a torsion spring 411 is arranged along the outside of the rotating shaft 410. A rotating limiting groove 3108 is opened inside the first half gear 31 and the second half gear 32 along the rotating path of the rotating pressing strip 49.

[0047] A push block 48 is also provided in the rectangular receiving groove 4501, and the sum of the lengths of the push block 48 and the rotating clamping strip 49 is less than the length of the rectangular receiving groove 4501. The outer end of the push block 48 is rotatably connected to a push rod 47 through a bearing, and the other end of the push rod 47 extends forward through the secondary fixing rod 45 and is threadedly connected to the secondary fixing rod 45. The push block 48 can be pushed to move by rotating the push rod 47, thereby driving the rotating clamping strip 49 to rotate and snap into the rotating limit groove 3108, thereby realizing rapid fixation of the gear unit. At the same time, the rotating clamping strip 49 can be reset by rotating the push rod 47 in the opposite direction, thereby facilitating the disassembly of the gear unit. The assembly and disassembly process is simplified, the work efficiency is improved, and the structure is stable and reliable.

[0048] (2) Design of installation and disassembly of secondary fixing rods, such as Figures 7-9 Shown

[0049] The front end of the secondary fixing rod 45 is fixed with a mounting head 44, and the front end of the push rod 47 is fixed with a locking screw head 46. The rear end of the secondary fixing rod 45 passes through the hole on the rear arc-shaped piece 42 and is threadedly connected with a compression nut 412. This makes the installation and disassembly of the secondary fixing rod 45 more convenient. The quick fixing and disassembly of the secondary fixing rod 45 can be achieved through the locking screw head 46 and the compression nut 412, further simplifying the assembly and disassembly process, improving work efficiency, and enhancing the structural stability.

[0050] (3) The design of the rear limiting unit and the front limiting unit, as Figures 1-5 shown

[0051] The rear limiting unit 1 includes structures such as a rear basic ring 11, an intermediate embedded ring 12, and an arc-shaped vertical plate 13. The front limiting unit 2 includes structures such as a front cover 21, a second insertion plate 22, and a second limiting triangular block 23. Circular accommodation grooves 3101 are commonly opened in the middle of the front and rear end faces of the first half gear 31 and the second half gear 32, and the front cover 21 and the rear basic ring 11 are respectively located inside the circular accommodation grooves 3101 at the front and rear ends.

[0052] The front end of the rear basic ring 11 is integrally connected with the intermediate embedded ring 12. Arc-shaped vertical plates 13 are integrally connected to both sides of the intermediate embedded ring 12, and the arc-shaped vertical plates 13 are two-thirds annular structures. Annular embedding grooves 2102 are opened at the corresponding positions on the end face of the front cover 21 corresponding to the intermediate embedded ring 12, and arc-shaped embedding grooves 2104 are opened at the corresponding positions corresponding to the arc-shaped vertical plates 13. An intermediate through groove 3102 for the intermediate embedded ring 12 to pass through is commonly penetrated inside the first half gear 31 and the second half gear 32, and arc-shaped through grooves 3103 are penetrated at the corresponding positions corresponding to the arc-shaped vertical plates 13. The sum of the depths of the arc-shaped through groove 3103 and the arc-shaped embedding groove 2104 is equal to the thickness of the arc-shaped vertical plate 13. Circular clamping blocks 3104 are formed along the arc-shaped through groove 3103 on the first half gear 31 and the second half gear 32.

[0053] This enables the rear limiting unit 1 and the front limiting unit 2 to be tightly fixed at the front and rear ends of the gear unit 3, providing a stable limiting effect.

[0054] (4) The design of the buckle structure and the elastic support, as Figures 1-5 shown

[0055] Circular through grooves 3105 are opened on both the first half gear 31 and the second half gear 32, with a total of four, and they are symmetrically arranged up, down, left, and right.

[0056] A first insertion plate 14 is fixed to the upper and lower ends of the rear basic ring 11 along the upper and lower ends of the circular through groove 3105 at the rear end. A first limiting triangular block 15 is integrally connected to the front end of the first insertion plate 14. Each group of two first limiting triangular blocks 15 forms a snap structure. A rectangular slot 2101 is formed in the rear end face of the front cover 21 along the outside of each group of two first limiting triangular blocks 15. The depth of the rectangular slot 2101 is equal to the thickness of the first limiting triangular block 15. An inner arc through surface 16 is formed by the inner end faces of each first insertion plate 14 and the first limiting triangular block 15. A through hole 1101 is formed in the end face of the rear basic ring 11 along the rear ends of each group of two first insertion plates 14. The through hole 1101 is smoothly connected to the inner arc through surface 16.

[0057] Second insertion plates 22 are fixed to both ends between each group of two first insertion plates 14 at the rear end of the front cover 21. A second limiting triangular block 23 is integrally connected to the rear end of the second insertion plate 22. Each group of two second limiting triangular blocks 23 forms a snap structure. A plurality of pressure springs 24 are arranged in an array between each group of two second insertion plates 22.

[0058] During the assembly process, the gear unit 3 can be quickly positioned and fixed through the snap structure. At the same time, the pressure spring 24 provides elastic support to enhance the stability of the structure.

[0059] (5) Design of the keyway, as Figures 1-5 shown

[0060] A first keyway 1201 is formed on the inner surface of the middle embedding ring 12. A second keyway 2103 is formed on the inner surface of the front cover 21. The second keyway 2103 and the first keyway 1201 correspond to each other in the front and rear positions. The transmission shaft can be stably transmitted through the key connection with the rear limiting unit 1 and the front limiting unit 2, so as to drive the gear unit 3 to rotate, enhance the stability and reliability of the transmission system, and improve the transmission efficiency.

[0061] (6) Disassembly, installation and usage methods

[0062] Disassembly method:

[0063] Step 1: Press the second limiting triangular block 23 to contract the pressure spring 24, and then pull the front limiting unit 2 forward.

[0064] Step 2: Press the first limiting triangular block 15 and pull the rear limiting unit 1 backward.

[0065] Step 3: Rotate the locking screw head 46 to drive the push rod 47 to rotate, pull the push block 48 to move forward along the rectangular accommodation groove 4501. After the pressure of the push block 48 on the pressing strip 49 is lost, the pressing strip 49 rotates and resets to the rectangular accommodation groove 4501 due to the elastic force of the torsion spring 411;

[0066] Step 4: Rotate the compression nut 412 to disengage the compression nut 412 from the outside of the secondary fixing rod 45, and pull the secondary fixing rod 45 forward to disengage the secondary fixing rod 45 from the secondary fixing groove 3106.

[0067] Installation method:

[0068] Step 1: Place the first half gear 31 and the second half gear 32 at the front end of the rear limit unit 1, and align the arc-shaped through slots 3103 on the first half gear 31 and the second half gear 32 with the arc-shaped vertical plate 13. Push the gear unit 3 backward so that the arc-shaped vertical plate 13 is inserted into the arc-shaped through slots 3103.

[0069] Step 2: While performing the action of Step 1, the first limit triangular block 15 and the first insertion plate 14 pass through the circular through slot 3105 under the extrusion action. After the first limit triangular block 15 moves to the front end of the first half gear 31 and the second half gear 32, it resets under its own elastic action and is stuck at the position of the circular through slot 3105 of the first half gear 31 and the second half gear 32.

[0070] Step 3: Push the front limit unit 2 backward. The second insertion plate 22 and the second limit triangular block 23 on the front limit unit 2 pass through between each group of the first insertion plate 14 and the first limit triangular block 15 under the extrusion action. After the second limit triangular block 23 moves through the through hole 1101, it resets under its own elastic action and the elastic action of the compression spring 24 and is stuck at the rear end position of the through hole 1101.

[0071] Step 4: Rotate the front arc-shaped piece 41 and the rear arc-shaped piece 42, align the secondary fixing rod 45 with the holes on the front arc-shaped piece 41 and the rear arc-shaped piece 42 and the secondary fixing groove 3106 and insert it. Then lock it using the threaded connection between the compression nut 412 and the secondary fixing rod 45.

[0072] Step 5: Rotate the locking screw head 46. Due to the threaded connection between the push rod 47 and the secondary fixing rod 45 and the bearing connection between the push rod 47 and the push block 48, push the push block 48 to move backward along the rectangular accommodating groove 4501. In the initial state, the rotating pressing strip 49 is in contact with the push block 48. Under the pushing action of the push block 48, the rotating pressing strip 49 is pushed to rotate along the rotating limit groove 3108 until the push block 48 is in contact with the end face of the rotating pressing strip 49, and the rotating pressing strip 49 is stuck inside the rotating limit groove 3108.

[0073] By pressing the limit triangular block, rotating the locking screw head, pulling the push block and other steps, the quick disassembly and installation of the gear can be achieved. It does not require too many tools, reducing the operation difficulty and cost.

[0074] Gear usage method:

[0075] Step 1: The transmission shaft drives the rear limit unit 1 and the front limit unit 2 to rotate through the connection relationship with the first keyway 1201 and the second keyway 2103. Due to the embedded connection relationship between the arc-shaped vertical plate 13 and the annular embedding groove 2102 and the arc-shaped through groove 3103, the gear unit 3 is driven to rotate;

[0076] Step 2: During the rotation of the gear unit 3, due to the existence of the rotating shaft 43, the front arc-shaped piece 41, the rear arc-shaped piece 42, and the secondary fixing rod 45, the first half gear 31 and the second half gear 32 are secondarily fixed to resist the acting force brought to the first half gear 31 and the second half gear 32 when one of the gears meshes with the first half gear 31 and the second half gear 32 during the rotation process;

[0077] Step 3: The rotating pressing strip 49 is located in the rotating limit groove 3108 and is perpendicular to the rotating direction for triple fixation to continue to resist the acting force brought to the first half gear 31 and the second half gear 32 when one of the gears meshes with the first half gear 31 and the second half gear 32 during the rotation process.

[0078] During the use of the gear, the transmission shaft drives the rear limit unit and the front limit unit to rotate through the connection relationship with the keyway, thereby driving the gear unit to rotate. Due to the existence of the secondary fixing unit and the limit unit, the gear always maintains a stable state during the rotation process, effectively resisting the huge acting force generated during gear meshing. The existence of this part of the structure not only improves the stability and reliability of gear transmission, but also extends the service life of the gear and reduces the maintenance cost.

[0079] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A gear with a detachable transmission connection structure, comprising a gear unit (3), characterized in that: The gear unit (3) is composed of a first half gear (31) and a second half gear (32), and the first half gear (31) and the second half gear (32) have the same structure and are symmetrically arranged with respect to the structural center; The first half gear (31) and the second half gear (32) are fixed by two secondary fixing units (4). The secondary fixing unit (4) includes a front arc plate (41), a rear arc plate (42) and a rotating shaft (43). The front arc plate (41) and the rear arc plate (42) are respectively located at the front and rear ends of the gear unit (3). The rotating shaft (43) is connected to one side between the front arc plate (41) and the rear arc plate (42). Rotating grooves (3107) are provided at positions corresponding to the rotating shaft (43) on the first half gear (31) and the second half gear (32); On the other side between the front arc plate (41) and the rear arc plate (42), a secondary fixing rod (45) is provided. Hole grooves for the secondary fixing rod (45) to pass through are provided on the front arc plate (41) and the rear arc plate (42). Secondary fixing grooves (3106) are provided at positions corresponding to the secondary fixing rod (45) on the first half gear (31) and the second half gear (32); A rectangular accommodating groove (4501) is penetrated inside the secondary fixing rod (45). A rotating pressing strip (49) is arranged in the rectangular accommodating groove (4501). An outer arc pushing surface (4901) is formed on the end surface of the rotating pressing strip (49). The rotating pressing strip (49) is rotatably connected to the secondary fixing rod (45) through a rotating shaft (410). A torsion spring (411) is arranged along the outside of the rotating shaft (410) between the rotating pressing strip (49) and the secondary fixing rod (45); Rotating limiting grooves (3108) are provided in the first half gear (31) and the second half gear (32) along the rotation path of the rotating pressing strip (49); A pushing block (48) is further arranged in the rectangular accommodating groove (4501). The sum of the lengths of the pushing block (48) and the rotating pressing strip (49) is less than the length of the rectangular accommodating groove (4501). The outer end of the pushing block (48) is rotatably connected to a pushing rod (47) through a bearing. The other end of the pushing rod (47) extends forward through the secondary fixing rod (45). The pushing rod (47) is threadedly connected to the secondary fixing rod (45).

2. The detachable gear of a transmission connection structure according to claim 1, characterized in that: An installation head (44) is fixed at the front end of the secondary fixing rod (45). A locking screw head (46) is fixed at the front end of the pushing rod (47). A pressing nut (412) is threadedly connected to the rear end of the secondary fixing rod (45) passing through the hole on the rear arc plate (42).

3. A gear with a detachable transmission connection structure according to claim 2, characterized in that: The detachable gear of the transmission connection structure further includes a rear limiting unit (1). The rear limiting unit (1) includes a rear basic ring (11). A middle embedding ring (12) is integrally connected to the front end of the rear basic ring (11). Arc-shaped vertical plates (13) are integrally connected to both sides of the middle embedding ring (12). The arc-shaped vertical plates (13) are of a two-thirds annular structure.

4. A gear with a detachable transmission connection structure according to claim 3, wherein: The detachable gear of the transmission connection structure further includes a front limiting unit (2), and the front limiting unit (2) includes a front cover (21). An annular embedding groove (2102) is formed at a position corresponding to the end face of the front cover (21) and the middle embedding ring (12), and an arc-shaped embedding groove (2104) is formed at a position corresponding to the end face of the front cover (21) and the arc-shaped vertical plate (13).

5. A gear with a detachable transmission connection structure according to claim 4, characterized in that: A circular accommodating groove (3101) is formed in the middle of the front and rear end faces of the first half gear (31) and the second half gear (32). The front cover (21) and the rear basic ring (11) are respectively located inside the circular accommodating groove (3101) at the front and rear ends. A middle through groove (3102) for the middle embedding ring (12) to pass through is formed through the inside of the first half gear (31) and the second half gear (32). An arc-shaped through groove (3103) is formed through the positions of the first half gear (31) and the second half gear (32) corresponding to the arc-shaped vertical plate (13). The sum of the depths of the arc-shaped through groove (3103) and the arc-shaped embedding groove (2104) is equal to the thickness of the arc-shaped vertical plate (13). Circular clamping blocks (3104) are formed along the arc-shaped through groove (3103) on the first half gear (31) and the second half gear (32).

6. A gear with a detachable transmission connection structure according to claim 5, characterized in that: Circular through grooves (3105) are formed on both the first half gear (31) and the second half gear (32). There are four circular through grooves (3105) in total. The four circular through grooves (3105) are symmetric both vertically and horizontally. First insertion plates (14) are fixed to the upper and lower ends of the rear end of the circular through groove (3105) on the rear basic ring (11). A first limiting triangular block (15) is integrally connected to the front end of the first insertion plate (14). Each group of two first limiting triangular blocks (15) forms a clamping structure.

7. A gear with a detachable transmission connection structure according to claim 6, characterized in that: A rectangular slot (2101) is formed on the rear end face of the front cover (21) along the outside of each group of two first limiting triangular blocks (15). The opening depth of the rectangular slot (2101) is equal to the thickness of the first limiting triangular block (15). An inner arc-shaped passing surface (16) is formed on the inner end face of each first insertion plate (14) and the first limiting triangular block (15).

8. A gear with a detachable transmission connection structure according to claim 7, characterized in that: A through hole (1101) is formed on the end face of the rear basic ring (11) along the rear end of each group of two first insertion plates (14). The through hole (1101) is smoothly connected to the inner arc-shaped passing surface (16). Second insertion plates (22) are fixed to both ends between each group of two first insertion plates (14) at the rear end of the front cover (21). A second limiting triangular block (23) is integrally connected to the rear end of the second insertion plate (22). Each group of two second limiting triangular blocks (23) forms a clamping structure. A plurality of compression springs (24) are arranged in an array between each group of two second insertion plates (22).

9. A gear with a detachable transmission connection structure according to claim 8, characterized in that: A first keyway (1201) is formed on the inner surface of the middle embedding ring (12), and a second keyway (2103) is formed on the inner surface of the front cover (21). The second keyway (2103) and the first keyway (1201) are in corresponding front and rear positions.

10. A disassembly method, implemented based on the detachable gear of the transmission connection structure described in claim 9, characterized in that, Including the following steps: Step 1: Press the second limit triangular block (23), the compression spring (24) contracts, and the front limit unit (2) is pulled to move forward; Step 2: Press the first limit triangular block (15), and the rear limit unit (1) is pulled to move backward; Step 3: Rotate the locking screw head (46) to drive the push rod (47) to rotate. Due to the threaded connection between the push rod (47) and the secondary fixing rod (45) and the bearing connection between the push rod (47) and the push block (48), the push block (48) is pulled to move forward along the rectangular accommodating groove (4501). After the pressing strip (49) loses the pressure of the push block (48), it rotates back to the rectangular accommodating groove (4501) due to the elastic force of the torsion spring (411); Step 4: Rotate the compression nut (412) so that the compression nut (412) disengages from the outside of the secondary fixing rod (45), and pull the secondary fixing rod (45) forward so that the secondary fixing rod (45) disengages from the secondary fixing groove (3106); Step 5: Remove the first half gear (31) and the second half gear (32) to complete the disassembly.

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