Transmission shaft sheath assembly

Abstract

The utility model discloses a sheath assembly of a transmission shaft. The sheath assembly comprises a first wire rod, a second wire rod and a hoop piece, the first wire extends in the spiral direction; the second wire rod is sleeved outside the first wire rod along the spiral direction of the first wire rod; the outer wall of the second wire rod is at least provided with blocking columns extending between the two adjacent spiral rings. The hoop piece comprises a locking piece and two hoop bodies which are oppositely arranged and are in a combined state. The opposite faces of the two ends of the two hoop bodies are provided with concave parts extending in the width direction of the hoop piece. In the combined state, a hooping space matched with the transmission shaft is formed between the two hoop bodies, and the two concave parts are combined with each other to form a clamping channel; and in a combined state; and the two ends of the first wire rod have a clamping state in which the first wire rod is inserted and fixed in the clamping channels on the corresponding sides. The transmission shaft can be effectively protected, replacement is convenient and fast, disassembly and replacement time is effectively shortened, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission shaft technical field especially relates to a transmission shaft sheath assembly. BACKGROUND

[0002] Transmission shaft is a commonly used transmission component, for example, in the universal transmission mechanism, the transmission shaft is a long shaft. In order to avoid that the transmission shaft is hit by flying stones or adheres to foreign matters such as mud, a sheath is sleeved on the outside of the transmission shaft to protect it. The sheath is generally of hollow structure, is pre-sleeved on the transmission shaft and is fixed. When the sheath is damaged, the components or mechanisms connected with the transmission shaft need to be disassembled to replace the sheath, and then the components or mechanisms are reassembled. In the above-mentioned mode, the disassembly and assembly steps of the sheath are complicated, time-consuming and laborious, and the replacement efficiency of the sheath is low, so it is difficult to meet the timely replacement requirement of the sheath. SUMMARY

[0003] In view of the above-mentioned technical problems, the utility model aims at providing a transmission shaft sheath assembly, which can effectively protect the transmission shaft, is convenient and fast to replace, effectively shortens the disassembly and assembly time, saves time and labor, and effectively meets the timely replacement requirement of the sheath.

[0004] The technical solution of the utility model is realized as follows: a transmission shaft sheath assembly, comprising a first wire, a second wire and a hoop piece.

[0005] The first wire extends in a spiral direction, and an internal protection channel for inserting the transmission shaft is formed.

[0006] The second wire is of hollow structure, and is sleeved on the outside of the first wire in the spiral direction of the first wire. At least a blocking column extending between two adjacent spiral turns is arranged on the outer wall of the second wire.

[0007] The hoop piece is arranged at both ends of the first wire, and comprises a locking piece, two oppositely arranged hoop bodies having a combined state. The opposite surfaces of the two ends of the two hoop bodies are provided with recesses extending in the width direction of the hoop piece. In the combined state, a hoop-tight space matched with the transmission shaft is formed between the two hoop bodies, and the two recesses are combined with each other to form a clamping channel. In the combined state, the two ends of the first wire have a clamping state of being inserted and fixed in the clamping channel on the corresponding side.

[0008] The locking piece has a locking state of locking the two hoop bodies relative to each other in the combined state, and an unlocking state of unlocking the two hoop bodies relative to each other in the combined state.

[0009] Further, the first wire is made of metal material, and the first wire has a designed elastic coefficient.

[0010] Further, two ends of the first wire are formed with an extension structure; the extension structure comprises a clamping section penetratingly fixedly matched with the clamping channel and a bending section bent from one end of the clamping section; in the clamping state, the bending section is located at opposite outer sides of the two hoop members.

[0011] Further, the second wire and the first wire are tightly contactively matched.

[0012] Further, the first end of the blocking column is fixedly connected with the second wire, and the second end forms a free end; on two adjacent thread turns of the second wire, the second end of the blocking column on the first side thread turn extends towards the second side thread turn.

[0013] Further, the second wire and the blocking column are integrally formed and are made of plastic or rubber.

[0014] Further, the two ends of the hoop body are provided with combination parts extending to the outside of the hoop body; in the combined state, the combination parts of the two hoop bodies are arranged to face each other; and the recesses are arranged on the opposite surfaces of the combination parts.

[0015] Due to the use of the above technical scheme, the utility model has the following advantages compared with the prior art:

[0016] 1. The utility model discloses a transmission shaft protection device, which comprises a transmission shaft, a first wire and a second wire, a blocking column and a hoop member, wherein the first wire and the second wire are sleeved with each other to form a spiral structure, the first wire and the second wire are integrally arranged on the transmission shaft in a spiral winding mode, the blocking column is arranged on the second wire, and the hoop member is arranged on the first wire. BRIEF DESCRIPTION OF DRAWINGS

[0017] The technical scheme of the utility model will be further described below with reference to the drawings:

[0018] Figure 1 It is a three-dimensional structure schematic view of the overall structure of the utility model;

[0019] Figure 2 It is an exploded view of the utility model; Figure 1

[0020] Figure 3 It is a front view structure schematic view of the utility model; Figure 1 ​​

[0021] Figure 4 for Figure 1 a side view structural schematic diagram

[0022] Figure 5 a three-dimensional structural schematic diagram of the second wire rod of the utility model;

[0023] Figure 6 a three-dimensional structural schematic diagram of the first wire rod of the utility model;

[0024] Figure 7 a three-dimensional schematic diagram of the utility model assembled on the transmission shaft;

[0025] Wherein: 1, the first wire rod; 11, clamping section; 12, bending section; 2, the second wire rod; 21, blocking column; 3, the hoop member; 31, hoop body; 32, recess; 33, clamping channel; 34, hoop space; 35, combination part. DETAILED DESCRIPTION

[0026] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0027] As Figures 1-7 shown is a transmission shaft sleeve assembly described in the embodiment, which is suitable for the protection needs of various long shafts and short shafts. The transmission shaft sleeve assembly comprises a first wire rod 1, a second wire rod 2 and a hoop member 3. The first wire rod 1 extends in a spiral direction to form a spiral structure, and a protection channel for inserting a transmission shaft is formed in the inside of the first wire rod 1. The first wire rod 1 is made of metal material and has a designed elastic coefficient, so as to be able to stretch or shorten to a certain extent, thereby being able to slightly change the space size of the protection channel. The second wire rod 2 is of an internal hollow structure and is made of plastic or rubber or silicone to form a flexible structure, so as to be able to bend. The second wire rod 2 is sleeved on the outside of the first wire rod 1 along the spiral direction of the first wire rod 1. The size of the inner diameter of the second wire rod 2 is reasonably designed, so that the second wire rod 2 is in close contact with the first wire rod 1 when sleeved, and the first wire rod 1 and the second wire rod 2 are difficult to slide relative to each other. At least a blocking column 21 extending between adjacent two spiral turns is formed on the outer wall of the second wire rod 2. In the embodiment, the blocking columns 21 are arranged at intervals along the linear direction of the second wire rod 2, and the blocking columns 21 are arranged at intervals along the circumferential direction of the second wire rod 2. Through the above structural design, the blocking columns 21 cooperate with each other to cover the space between the adjacent two spiral turns of the second wire rod 2.

[0028] Specifically, the blocking column 21 is a cylindrical or cylindrical structure. The blocking column 21 is integrally formed with the second wire 2, so that the blocking column 21 is formed as a flexible structure and can be freely bent. The first end of the blocking column 21 is fixedly connected with the second wire 2, and the second end forms a free end. In a specific arrangement, on two adjacent thread turns of the second wire 2, the second end of the blocking column 21 on the first side helical turn extends towards the second side helical turn, and the second end of the blocking column 21 can be in contact or not in contact with the second side helical turn.

[0029] In the embodiment, the aforementioned clamping member 3 is mounted on both ends of the first wire 1, and includes a locking member and two oppositely arranged clamping bodies 31 in a combined state. The two clamping bodies 31 are semicircular or arc-shaped structures, and recesses 32 extending along the width direction of the clamping member 3 are formed on the opposite faces of the two ends of the two clamping bodies 31. The recesses 32 are arc-shaped grooves or semicircular grooves. In the combined state, a clamping space 34 cooperating with the transmission shaft is formed between the two clamping bodies 31. When the clamping member 3 is clamped on the transmission shaft, the width direction of the clamping member 3 is the central axis direction of the transmission shaft. In the aforementioned combined state, the two recesses 32 are combined with each other to form a clamping channel 33. The inner diameter of the clamping channel 33 is matched with the wire diameter of the first wire 1. In the aforementioned combined state, the two ends of the first wire 1 have a clamping state of being inserted and fixed in the clamping channel 33 on the corresponding side. Through the above structural design, when the clamping member 3 is clamped on the transmission shaft, the two ends of the first wire 1 can be clamped and fixed in the clamping channel 33, so that the first wire 1 and the second wire 2 are integrally mounted and fixed on the transmission shaft.

[0030] In the embodiment, the aforementioned first wire 1 has an extension structure formed on both ends. The extension structure includes a clamping segment 11 and a bending segment 12 bent from one end of the clamping segment 11. The end of the clamping segment 11 away from the bending segment 12 is connected with the main body structure of the first wire 1, and the clamping segment 11 extends in a straight line direction and is inserted and fixedly matched with the clamping channel 33. In the aforementioned clamping state, the bending segment 12 is located on the opposite outer sides of the two clamping members 3. The bending segment 12 plays a better limiting role, and when the first wire 1 is clamped and fixed on the clamping member 3, the bending segment 12 can limit the movement of the first wire 1 along the width direction of the clamping member 3, thereby further improving the stability of the clamping and fixation of the first wire 1.

[0031] In the embodiment, the aforementioned clamping body 31 has a combination portion 35 extending to the outside of the clamping body 31 formed on both ends of the clamping body 31. In the aforementioned combined state, the combination portions 35 of the two clamping bodies 31 are arranged facing each other. The recesses 32 are formed on the opposite faces of the combination portions 35. In the combined state, the combination portions 35 on the same side of the two clamping bodies 31 are close to each other, so that the recesses 32 on the combination portions 35 are combined with each other to form the clamping channel 33.

[0032] In the embodiment, the locking member is connected between the two hoop bodies 31 to have a locking state of locking the two hoop bodies 31 in the combined state and an unlocking state of unlocking the two hoop bodies 31 in the combined state. The assembly hole is processed on the joint part 35. The locking member is preferably a screw assembly which is inserted between the two joint parts 35 on the same side to lock the two hoop bodies 31.

[0033] In the embodiment, two clamping channels 33 are formed on each hoop member 3, so that a single hoop member 3 can clamp and fix two groups of first wires 1 at the same time. Through the cooperation of the hoop members 3, the first wires 1 and the second wires 2, the length of the overall structure can be changed to adapt to the protection requirements of the drive shafts of different lengths.

[0034] In specific use, the second wire 2 is sleeved on the first wire 1 to form an overall structure in a spiral structure. The distance between the adjacent two spiral turns of the first wire 1 and the second wire 2 is pulled open to a certain extent and clamped on the drive shaft, and then the first wire 1 and the second wire 2 are rotated in one direction, and the first wire 1 and the second wire 2 can be assembled on the drive shaft in a spiral winding manner. The hoop member 3 is assembled to the two ends of the first wire 1, the two hoop bodies 31 of the hoop member 3 are placed on the two sides of the drive shaft, the clamping section 11 on the first wire 1 is placed in the recess 32, and then the hoop member 3 is locked by the locking member, so that the hoop member 3 is clamped on the drive shaft, and the clamping section of the first wire 1 is clamped in the clamping channel 33 formed by the two recesses 32, thereby fixing the first wire 1 and the second wire 2 on the drive shaft as a whole. Through the above-mentioned manner, the assembly can be realized without disassembling the components connected to the drive shaft, and the first wire 1 and the second wire 2 can preliminarily protect the outer circumferential surface of the drive shaft. The blocking column 21 on the second wire 2 can cover and block the exposed space between the adjacent spiral turns, thereby further protecting the exposed position of the drive shaft. Through the cooperation of the hoop member 3, the first wire 1 and the second wire 2 can be fixed on the drive shaft as a whole. Through the combination of the above-mentioned manner, the drive shaft can be effectively protected, and the replacement is convenient and fast, the disassembly and replacement time is effectively shortened, time and labor are saved, and the timely replacement requirement of the protective sleeve is effectively met.

[0035] The above-mentioned is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the utility model specification content, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A drive shaft boot assembly, comprising a first wire, a second wire, and a clamp member, characterized in that: the first wire extends in a helical direction and internally forms a protective channel for a drive shaft to pass through; the second wire is internally hollow and is sleeved on the outside of the first wire in the helical direction of the first wire; the outer wall of the second wire is provided with at least a blocking column extending between two adjacent helical turns; the clamp member is arranged at both ends of the first wire and comprises a locking member and two oppositely arranged clamp bodies in a combined state; the opposite faces of the two ends of the two clamp bodies are provided with recesses extending in the width direction of the clamp member; in the combined state, the clamp space matched with the drive shaft is formed between the two clamp bodies, and the clamping channels are formed by the mutual combination of the two recesses; and in the combined state, the two ends of the first wire have a clamping state of being inserted and fixed in the clamping channels on the corresponding sides; the locking member has a locking state of locking the two clamp bodies relative to each other in the combined state, and an unlocking state of unlocking the two clamp bodies relative to each other in the combined state.

2. A drive shaft boot assembly according to claim 1, characterized in that: the first wire is made of a metal material, and the first wire has a designed elastic coefficient.

3. A shaft sleeve assembly according to claim 1, wherein: the two ends of the first wire are formed with an extension structure; the extension structure comprises a clamping section inserted and fixedly matched with the clamping channel and a bent section bent from one end of the clamping section; in the clamping state, the bent section is located on the opposite outer sides of the two clamp members.

4. A shaft sleeve assembly according to claim 1, wherein: the second wire and the first wire are in close contact and matching.

5. A shaft sleeve assembly according to claim 1, wherein: a first end of the blocking column is fixedly connected with the second wire, and a second end forms a free end; on the two adjacent turns of the second wire, the second end of the blocking column on the first helical turn extends toward the second helical turn.

6. A shaft sleeve assembly according to claim 1, wherein: the second wire and the blocking column are integrally formed and are made of plastic or rubber.

7. A shaft sleeve assembly according to claim 1, wherein: the two ends of the clamp body are provided with a joint extending to the outside of the clamp body; in the combined state, the joints of the two clamp bodies are arranged face to face; and the recesses are arranged on the opposite faces of the joints.

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