Drilling mechanism for shaft body

Abstract

The utility model provides a drilling mechanism for a shaft body, and belongs to the technical field of drilling equipment. The problem that existing drilling equipment cannot adjust the height of shaft parts is solved. The drilling mechanism of the shaft body comprises a supporting rod, a lifting assembly and a drilling assembly. According to the drilling device, after the shaft body is placed on the lifting assembly, the height of the shaft body can be properly lifted or reduced through the lifting assembly according to the drilling requirement of the shaft body, so that the drilling assembly can smoothly drill the shaft body.

Description

Technical Field

[0001] This utility model belongs to the field of drilling equipment technology, and relates to a drilling mechanism for a shaft. Background Technology

[0002] As key components in mechanical equipment, shafts are crucial for their rotational performance and stability. To ensure that shafts do not generate excessive vibration and noise during high-speed rotation, they typically undergo rigorous dynamic balancing tests. This testing process identifies any unbalanced mass distribution on the shaft. When an unbalanced mass distribution is present, corrective measures are needed to adjust it, such as drilling to reduce weight or welding counterweights.

[0003] However, many drilling devices on the market for shaft parts fix the shaft directly to the drilling machine, and ordinary drilling machines do not have the function of adjusting the height of shaft parts. This means that there may be a problem of limited drilling depth during the drilling process, which will affect the accurate quality correction of shaft parts. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a drilling mechanism that can adjust the height of shaft-type parts.

[0005] The objective of this utility model can be achieved through the following technical solution: a drilling mechanism for a shaft, comprising:

[0006] A support rod is provided with a lifting assembly for placing the shaft, the lifting assembly being used to drive the shaft to rise and fall;

[0007] A drilling assembly is located at the top of the support rod and is used to drill holes in the shaft. The lifting assembly includes a driving component and a movable component, which are connected. The movable component is located at the top of the driving component. One side of the driving component is fixedly connected to the support rod, and the movable component is movably connected to the support rod.

[0008] In the aforementioned drilling mechanism for a shaft, the driving component includes a pair of upper connecting plates and a pair of lower connecting plates. One upper connecting plate is hinged to the adjacent lower connecting plate via a left threaded sleeve, and the other upper connecting plate is hinged to the adjacent lower connecting plate via a right threaded sleeve. A lead screw passes through the left and right threaded sleeves, and a fixing member is provided on the support rod. One end of the lead screw is movably inserted into the fixing member.

[0009] In the aforementioned drilling mechanism for a shaft, the ends of the two lower connecting plates away from the upper connecting plate are hinged together by a lower support, and the ends of the two upper connecting plates away from the lower connecting plates are both hinged together with a movable component.

[0010] In the aforementioned drilling mechanism for a shaft, the fixing member includes a fixing block mounted on a support rod, the fixing block being provided with a fixing sleeve, and one end of the lead screw being movably inserted into the fixing sleeve.

[0011] In the aforementioned drilling mechanism for a shaft, the movable component includes an upper support hinged to two upper connecting plates. A lifting rod is provided on one side of the upper support, and a lifting sleeve is provided on the end of the lifting rod away from the upper support. The lifting sleeve is movably sleeved on the support rod.

[0012] In the aforementioned drilling mechanism for a shaft, the upper support is provided with at least two positioning blocks, each positioning block is provided with a slot, each positioning block is provided with a positioning rod, and each positioning rod is threaded with a nut at both ends.

[0013] In the aforementioned drilling mechanism for a shaft, the drilling assembly includes a lower housing mounted on a support rod, a drive shaft movably passing through the lower housing, the drive shaft being able to rise and fall relative to the lower housing, a motor being provided on one side of the lower housing, an auxiliary pulley being mounted on the top of the drive shaft, a main pulley being mounted on the motor, and the main pulley and the auxiliary pulley being connected by a belt.

[0014] In the aforementioned drilling mechanism for a shaft, a guide bar is provided at one end of the drive shaft located on the pulley. The guide bar passes through the pulley. An upper housing is installed on the lower housing, and the auxiliary pulley is movably engaged within the upper housing.

[0015] In the aforementioned drilling mechanism for a shaft, a sleeve is fitted onto the drive shaft, the sleeve has a toothed surface on its side, a limiting ring is provided on the drive shaft, the sleeve is engaged between the guide bar and the limiting ring, a drive shaft is movably threaded through the lower housing, a handle rocker arm is installed at one end of the drive shaft, and a gear that meshes with the toothed surface is installed on the drive shaft.

[0016] In the aforementioned drilling mechanism for a shaft, a support assembly is provided at the bottom end of the support rod. The support assembly includes a support seat and a base connected to the support rod. A guide rail is provided on the support seat, and a slider that is slidably connected to the guide rail is provided on the base.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this invention, after the shaft is placed on the lifting assembly, the height of the shaft can be appropriately raised or lowered by the lifting assembly according to the drilling requirements of the shaft, so that the drilling assembly can smoothly drill the shaft. Attached Figure Description

[0019] Figure 1This is a structural schematic diagram of a preferred embodiment of the present invention.

[0020] Figure 2 yes Figure 1 A schematic diagram of the structure after removing the lifting components and the upper shell.

[0021] Figure 3 This is a schematic diagram of the internal structure of the drilling assembly.

[0022] Figure 4 This is a schematic diagram of the lifting component.

[0023] Figure 5 This is a schematic diagram of the drive shaft.

[0024] The figure includes a support rod 100, a lifting assembly 200, a driving component 210, a left threaded sleeve 211, a right threaded sleeve 212, a lead screw 213, a fixing component 214, a fixing block 214a, a fixing sleeve 214b, a lower support 215, an upper connecting plate 216, a lower connecting plate 217, a movable component 220, an upper support 221, a lifting rod 222, a lifting sleeve 223, a positioning block 224, a positioning rod 225, a drilling assembly 300, a lower housing 310, a transmission shaft 320, an auxiliary pulley 321, a guide bar 322, a sleeve 323, a toothed surface 323a, a limit ring 324, a motor 330, a main pulley 331, a belt 340, an upper housing 350, a driving shaft 360, a handle rocker arm 361, a gear 362, a support assembly 400, a support seat 410, a base 420, a guide rail 430, and a slider 440. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figure 1 and Figure 3 — Figure 5 As shown, the present invention provides a drilling mechanism for a shaft, comprising a support rod 100, a lifting assembly 200, and a drilling assembly 300.

[0027] The support rod 100 is equipped with a lifting assembly 200 for placing the shaft. The lifting assembly 200 is used to drive the shaft to rise and fall. The drilling assembly 300 is located at the top of the support rod 100. The drilling assembly 300 is used to drill holes in the shaft. Before drilling the shaft, the shaft needs to be placed on a dynamic balancing testing device and the shaft needs to be dynamically balanced. After the dynamic balancing test is passed, the shaft needs to be transferred from the dynamic balancing testing device to the lifting assembly 200. After that, people can appropriately raise or lower the height of the shaft by using the lifting assembly 200 according to the drilling requirements of the shaft so that the drilling assembly 300 can drill the shaft smoothly.

[0028] Furthermore, the lifting assembly 200 includes a driving component 210 and a movable component 220. The driving component 210 and the movable component 220 are connected, and the movable component 220 is located on top of the driving component 210. One side of the driving component 210 is fixedly connected to the support rod 100, and the movable component 220 is movably connected to the support rod 100. During installation, the shaft needs to be installed on the movable component 220. After that, the deformation state of the driving component 210 can be adjusted according to the drilling requirements of the shaft, thereby raising or lowering the height of the movable component 220, and thus adjusting the distance between the shaft and the drilling assembly 300 so that the drilling assembly 300 can drill the shaft smoothly.

[0029] The driving component 210 includes a pair of upper connecting plates 216 and a pair of lower connecting plates 217. One upper connecting plate 216 is hinged to the adjacent lower connecting plate 217 via a left threaded sleeve 211, and the other upper connecting plate 216 is hinged to the adjacent lower connecting plate 217 via a right threaded sleeve 212. A lead screw 213 passes between the left threaded sleeve 211 and the right threaded sleeve 212. The support rod 100 is provided with a fixing member 214, and one end of the lead screw 213 is movably inserted into... Within the fixing member 214, the ends of the two lower connecting plates 217 away from the upper connecting plate 216 are hinged via the lower support 215. The ends of the two upper connecting plates 216 away from the lower connecting plates 217 are both hinged to the movable member 220. Hinges (not shown in the figure) for hinged connection between the upper and lower connecting plates are provided on the left threaded sleeve 211 and the right threaded sleeve 212. The fixing member 214 includes a fixing block 214a mounted on the support rod 100, and the fixing block 214a is provided with… The fixed sleeve 214b has one end of the lead screw 213 movably inserted into it. When the lead screw 213 rotates around its central axis, the left and right threaded sleeves 211 and 212 are threadedly connected to the lead screw, allowing them to move simultaneously towards or away from each other. One end of the lead screw 213 remains movably inserted into the fixed sleeve 214b. The fixed sleeve 214b is fixedly connected to the fixed block 214a. A is fixedly connected to the support rod 100. Thus, when the left threaded sleeve 211 and the right threaded sleeve 212 move towards each other, the distance between the left threaded sleeve 211 and the right threaded sleeve 212 will decrease, and the driving member 210 will push the movable member 220 to rise relative to the support rod 100. When the left threaded sleeve 211 and the right threaded sleeve 212 move away from each other, the distance between the left threaded sleeve 211 and the right threaded sleeve 212 will increase, and the driving member 210 will lower the movable member 220.

[0030] Furthermore, the threads of the lead screw 213 are oriented in opposite directions from the center to both ends. The left thread sleeve 211 is threaded onto the thread at the left end of the center of the lead screw 213, and the right thread sleeve 212 is threaded onto the thread at the right end of the center of the lead screw 213. In this way, the left thread sleeve 211 and the right thread sleeve 212 can move towards each other or away from each other when the lead screw 213 rotates.

[0031] Furthermore, the fixing block 214a remains stationary relative to the support rod 100, and the fixing sleeve 214b is fixedly connected to the fixing block 214a. The fixing sleeve 214b has no internal threads, so that the lead screw 213 can rotate after being inserted into the fixing sleeve 214b.

[0032] Furthermore, a retaining ring (not shown in the figure) is provided at one end of the lead screw 213 that is inserted into the fixed sleeve 214b, and a corresponding annular groove (not shown in the figure) is provided in the fixed sleeve 214b. The retaining ring is movably engaged in the annular groove so that the lead screw 213 will not come out of the fixed sleeve 214b during its rotation.

[0033] The movable component 220 includes an upper support 221 hinged to two upper connecting plates 216. A lifting rod 222 is provided on one side of the upper support 221. A lifting sleeve 223 is provided on the end of the lifting rod 222 away from the upper support 221. The lifting sleeve 223 is movably sleeved on the support rod 100. When the upper support 221 rises or falls, since one end of the lifting rod 222 is fixedly connected to the upper support 221 and the other end of the upper support 221 is fixedly connected to the lifting sleeve 223, and the lifting sleeve 223 is movably sleeved on the support rod 100, the movement trajectory of the upper support 221 can only move up and down along the trajectory of the support rod 100, thereby preventing the upper support 221 from rotating around the lead screw 213.

[0034] The upper support 221 is provided with at least two positioning blocks 224. Each positioning block 224 is provided with a slot 224a. Each positioning block 224 is provided with a positioning rod 225. Each positioning rod 225 is threaded with a nut 225a at both ends. When installing the shaft, both ends of the shaft need to be locked into the slots 224a of the two positioning blocks 224 respectively. Then, the two ends of the positioning rod 225 are passed through the positioning blocks 224, and the nuts 225a are screwed onto the positioning rods 225 until a compressive force is generated between the nuts 225a and the positioning blocks 224. In this way, the shaft can be fixed on the two positioning blocks 224.

[0035] The drilling assembly 300 includes a lower housing 310 mounted on a support rod 100. A drive shaft 320 is movably mounted inside the lower housing 310. The drive shaft 320 can be raised and lowered relative to the lower housing 310. A motor 330 is mounted on one side of the lower housing 310. An auxiliary pulley 321 is mounted on the top of the drive shaft 320. A main pulley 331 is mounted on the motor 330. The main pulley 331 and the auxiliary pulley 321 are connected by a belt 340. When the motor 330 drives the main pulley 331 to rotate, the auxiliary pulley 321 will also rotate with the main pulley 331 because the auxiliary pulley 321 is connected to the main pulley 331 by the belt 340. Since the auxiliary pulley 321 is mounted on the drive shaft 320, the drive shaft 320 will also rotate synchronously with the auxiliary pulley 321. The drill bit (not shown in the figure) mounted at the bottom of the drive shaft 320 will rotate simultaneously, thereby completing the drilling work on the shaft.

[0036] A guide bar 322 is provided at one end of the drive shaft 320 located on the pulley. The guide bar 322 passes through the auxiliary pulley. By setting the guide bar 322, it can be ensured that the auxiliary pulley 321 can drive the drive shaft 320 to rotate synchronously.

[0037] An upper housing 350 is mounted on a lower housing 310. An auxiliary pulley 321 is movably engaged within the upper housing 350. A sleeve 323 is fitted onto the drive shaft 320. The sleeve 323 has a toothed surface 323a on its side. A limiting ring 324 is provided on the drive shaft 320. The sleeve 323 is engaged between the guide strip 322 and the limiting ring 324. A drive shaft 360 movably passes through the lower housing 310. One end of the drive shaft 320 is equipped with a handle rocker arm 361. A gear 362, meshing with a toothed surface 323a, is mounted on the drive shaft 360. When the handle rocker arm 361 is rotated, the drive shaft 360 drives the gear 362 to rotate. The gear 362 is always meshed with the toothed surface 323a. The sleeve 323 is always engaged between the limiting ring 324 and the guide strip 322. One end of the drive shaft 320 with the guide strip 322 moves through the auxiliary pulley 321. The other end of the drive shaft 320 moves through the bottom surface of the lower housing 310. In this way, the sleeve 323 will move up and down relative to the lower housing 310, thus realizing the raising and lowering of the drill bit and completing the drilling work of the shaft. Furthermore, the auxiliary pulley 321 is located between the top surface and the bottom surface inside the upper housing 350. The drive shaft 320 can pass through the top surface of the upper housing 350. In this way, when the drive shaft 320 moves up and down, the auxiliary pulley 321 will always be restricted by the upper housing 350, that is, the auxiliary pulley 321 is prevented from moving up and down relative to the upper housing 350. Furthermore, a plane bearing can be set between the top surface of the auxiliary pulley 321 and the top surface inside the upper housing 350, and between the bottom surface of the auxiliary pulley 321 and the bottom surface inside the lower housing 310. The drive shaft 320 moves through the two plane bearings (not marked in the figure), which can further reduce the friction between the auxiliary pulley 321 and the upper housing 350.

[0038] like Figure 1 — Figure 2 As shown, a support assembly 400 is provided at the bottom end of the support rod 100. The support assembly 400 includes a support base 410 and a base 420 connected to the support rod 100. The support base 410 is provided with a guide rail 430, and the base 420 is provided with a slider 440 that is slidably connected to the guide rail 430. In use, the support base 410 can be placed on the ground, and then the base 420 can be pushed according to the processing requirements. Since the slider 440 is slidably connected to the guide rail 430 and fixedly connected to the base 420, the base 420 can move directionally relative to the support base 410 along the trajectory of the guide rail 430.

[0039] Based on the above, the application scenarios of this drilling mechanism can cover the following areas:

[0040] 1. Automobile manufacturing:

[0041] In the automobile production process, key components of the transmission system, such as camshafts and crankshafts, require precision drilling to ensure their performance and durability. This drilling mechanism can be used to process these shaft parts, ensuring that each drilling position is accurate and that the height of the shaft can be adjusted according to the dynamic balance test results to ensure machining accuracy.

[0042] 2. Mechanical Engineering:

[0043] When manufacturing various mechanical equipment, it is often necessary to perform customized drilling on shaft parts. For example, in the design of fans or pumps, eccentric shafts are one of the common components. This shaft drilling mechanism can meet different drilling requirements by adjusting the shaft height, thereby adapting to the processing of eccentric shafts of different specifications.

[0044] 3. Shipbuilding:

[0045] The shafting in a ship's propulsion system also requires a rigorous drilling process. Due to the special nature of the ship's environment, the shafting not only has to withstand enormous pressure but also ensure reliable operation over long periods. By using the aforementioned drilling mechanism, it can be ensured that each shaft reaches its optimal working condition, reducing the risk of failure due to manufacturing defects.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A boring mechanism for a shaft body, characterized by, Include: Supporting rod, the supporting rod is equipped with lifting assembly for placing shaft body, the lifting assembly is used to drive shaft body to rise and fall; Drilling assembly, provided at the top end of the supporting rod, the drilling assembly is used for drilling the shaft; the lifting assembly includes a driving element and a movable element, the driving element is connected with the movable element, and the movable element is provided at the top of the driving element, one side of the driving element is fixedly connected with the supporting rod, and the movable element is movably connected with the supporting rod.

2. The drill mechanism of claim 1, wherein, The driving element includes a pair of upper connecting plates and a pair of lower connecting plates, wherein one upper connecting plate and an adjacent lower connecting plate are connected by a left thread sleeve, and the other upper connecting plate and an adjacent lower connecting plate are connected by a right thread sleeve, a lead screw is passed between the left thread sleeve and the right thread sleeve, and the supporting rod is provided with a fixing element, one end of the lead screw is movably inserted into the fixing element.

3. A bore mechanism for a shaft as claimed in claim 2, wherein, Two lower connecting plates are movably connected with the upper connecting plates through a lower support, and two upper connecting plates are movably connected with the movable element.

4. A bore mechanism for a shaft as claimed in claim 3, wherein, The fixing element includes a fixing block mounted on the supporting rod, the fixing block is provided with a fixing sleeve, and one end of the lead screw is movably inserted into the fixing sleeve.

5. The shaft body drilling mechanism according to claim 2, wherein The movable element includes an upper support movably connected with the two upper connecting plates, one side of the upper support is provided with a lifting rod, one end of the lifting rod away from the upper support is provided with a lifting sleeve, and the lifting sleeve is movably sleeved on the supporting rod.

6. A bore mechanism for a shaft as claimed in claim 5, wherein, The upper support is provided with at least two positioning blocks, each positioning block is provided with a clamping groove, each positioning block is provided with a positioning rod, and both ends of each positioning rod are threadedly connected with nuts.

7. The shaft body drilling mechanism according to claim 1, wherein The drilling assembly includes a lower housing provided on the supporting rod, a transmission shaft movably provided in the lower housing, the transmission shaft being movable relative to the lower housing, a motor provided on one side of the lower housing, a auxiliary pulley mounted on the top of the transmission shaft, a main pulley mounted on the motor, and a belt connected between the main pulley and the auxiliary pulley.

8. A bore mechanism for a shaft as claimed in claim 7, wherein, One end of the transmission shaft at the pulley is provided with a guide strip, the guide strip passes through the pulley, the lower housing is provided with an upper housing, and the auxiliary pulley is movably clamped in the upper housing.

9. A bore mechanism for a shaft as claimed in claim 8, wherein, A sleeve is sleeved on the transmission shaft, a tooth surface is provided on the side surface of the sleeve, a limiting ring is provided on the transmission shaft, the sleeve is clamped between the guide strip and the limiting ring, a driving shaft is movably provided on the lower housing, a handle rocker is mounted on one end of the driving shaft, and a gear meshing with the tooth surface is mounted on the driving shaft.

10. The drill mechanism of claim 1, wherein, A supporting assembly is provided on the bottom end of the supporting rod, the supporting assembly includes a supporting seat and a base connected with the supporting rod, a guide rail is provided on the supporting seat, and a sliding block slidably connected with the guide rail is provided on the base.

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