A spindle housing

Abstract

The utility model provides a kind of main shaft case, including box, lid mechanism, turbine assembly, worm assembly and guiding mechanism, and the installation port is opened in the top of box;Lid mechanism is detachably installed on the installation port of the box, and with the support portion that is inserted into the inside of the box;Worm assembly is installed in the inside of the box;Guiding mechanism is installed on the lid mechanism;Guiding mechanism is installed in the inside of the box, and with the lid mechanism sliding connection.The utility model installs worm assembly on a detachable lid mechanism, only needs to dismount the bolt of fixed lid mechanism, takes down lid mechanism together with whole worm assembly as a whole directly from the box, under the guidance of guiding assembly, the meshing of worm and turbine moves along the direction of installation and disassembly, avoids the jamming or damage tooth surface possibly caused by unguided disassembly, and does not need to carry out any complicated separation operation in the box.

Description

Technical Field

[0001] This utility model relates to the field of spindle housing technology, specifically to a spindle housing for a crankshaft milling machine tool. Background Technology

[0002] The spindle housing of the crankshaft milling machine tool is a worm gear drive spindle housing. The worm gear drive has a single-stage transmission ratio of over 100:1, which can convert the high-speed, low-torque output of the motor into the low-speed, high-torque state required by the spindle, meeting the heavy cutting requirements of milling carbide tools in the roughing of crankshafts. Especially for large workpieces such as ship crankshafts, the high torque output can stably cope with the impact loads of intermittent cutting.

[0003] However, for the spindle housing of a worm gear drive, when maintenance or replacement of the worm (usually a more wear-prone and maintenance-intensive component) is required, the entire spindle assembly (including the worm gear, bearings, etc.) must be removed from the housing, or at least the worm gear must be extracted from an extremely confined space. This typically involves disassembling multiple related components and carefully separating the worm gear and worm gear meshing pair. The entire process is time-consuming and labor-intensive, with long maintenance windows, requiring highly skilled operators and increasing the risk of damage to other parts or reduced installation accuracy due to the disassembly of complex components. Installing the worm gear into the housing and precisely meshing it with the worm gear also requires operation within a confined space, making adjustment of the meshing clearance (center distance, side clearance) very inconvenient and directly affecting transmission efficiency and lifespan. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a spindle housing to solve the technical problem of limited space for disassembling and assembling worm gears in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a spindle housing, comprising:

[0007] The housing has an installation opening on its top;

[0008] A cover mechanism, which is detachably mounted on the mounting port of the box and has a support portion that inserts into the inside of the box;

[0009] A turbine assembly, which is installed inside the housing;

[0010] The worm gear assembly, which is mounted on the cover mechanism; and

[0011] A guide mechanism, which is installed on the inner side of the housing and slidably connected to the cover mechanism, is used to restrict the cover mechanism from moving toward the worm gear engagement position and to restrict the worm gear axis from being perpendicular to the turbine axis.

[0012] In some embodiments, the mounting port extends from the top of the housing to the side of the housing away from the turbine assembly, the cover mechanism includes a closed cover that matches the mounting port, the support includes a support frame that is fixedly connected to the bottom of the closed cover, one end of the worm gear assembly is connected to the support frame, and the other end passes through the closed cover and is connected to the closed cover.

[0013] In some embodiments, the guiding mechanism includes a guide rail that guides the cover mechanism to slide along a first direction. The support portion is provided with a groove that matches the guide rail. The cover mechanism is slidably connected to the guide rail through the groove, so that the cover mechanism slides linearly toward the worm gear meshing position. The guide rail is provided with a stop block arranged at the tail end in the sliding direction for abutting the support portion and positioning the insertion position of the cover mechanism.

[0014] In some embodiments, the guide mechanism further includes a lifting base, which is installed at the bottom of the housing and has its lifting end connected to the guide rail for adjusting the height of the guide rail along the worm gear axis.

[0015] In some embodiments, the lifting base includes a threaded cylinder, an outer sleeve, an inner cylinder, and a support base. The inner cylinder is fixedly connected to the inner bottom wall of the housing, and the threaded cylinder penetrates the inner bottom wall of the housing and is threadedly connected to the inner cylinder. The outer sleeve is sleeved on the outside of the inner cylinder, and the guide rail is installed on the top of the outer sleeve.

[0016] In some embodiments, the top of the threaded cylinder is provided with a top block that abuts against the guide rail, and the bottom of the threaded cylinder is provided with a hexagonal column.

[0017] In some embodiments, a gasket is inserted between the hexagonal column and the inner bottom wall of the support base.

[0018] In some embodiments, both the outer sleeve and the inner sleeve are square.

[0019] In some embodiments, the cover mechanism is provided with a plurality of bolts, the bolts being threadedly connected to the housing, and the bolts being parallel to the lifting direction of the lifting base.

[0020] In some embodiments, the closed cover has an observation port, and an observation window is detachably connected to the observation port.

[0021] Compared with the prior art, the spindle housing provided by this utility model, by installing the worm gear assembly on a detachable cover mechanism, only requires removing the bolts fixing the cover mechanism, and the cover mechanism together with the entire worm gear assembly can be directly removed from the housing as a whole. Under the guidance of the guide component, the meshing of the worm and the turbine moves along the installation and removal direction, avoiding jamming or damage to the tooth surface that may be caused by unguided disassembly, and no complicated separation operation is required inside the housing. The worm gear assembly is completely exposed, and the turbine assembly is exposed in the installation port, which is convenient for inspection, maintenance and replacement. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the spindle housing provided in an embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional view of the guide mechanism of the spindle housing provided in this embodiment of the utility model;

[0024] Figure 3 This is a three-dimensional exploded view of the guide mechanism of the spindle housing provided in this embodiment of the utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Enclosure; 101. Mounting port;

[0027] 2. Cover mechanism; 21. Closing cover; 201. Support part; 201a. Support frame; 201b. Groove; 202. Bolt; 203. Observation port; 204. Observation window;

[0028] 3. Turbine assembly;

[0029] 4. Worm gear assembly;

[0030] 5. Guide mechanism; 51. Guide rail; 51a. Stop block; 52. Lifting base; 521. Threaded column; 521a. Top block; 521b. Hexagonal column; 522. Outer sleeve; 523. Inner cylinder; 524. Support seat; 525. Gasket. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] To address the technical problem of limited space for disassembling and assembling worm gears, this utility model provides a spindle housing that allows the cover mechanism 2, together with the entire worm gear assembly 4, to be directly removed from the housing 1 as a whole. Guided by the guide component, the meshing of the worm and the turbine moves along the installation and disassembly direction, avoiding jamming or damage to the tooth surface that may be caused by unguided disassembly, and eliminating the need for any complex separation operations within the housing 1.

[0033] It should be noted that the spindle housing described in this utility model is used in, but not limited to, crankshaft milling machine tools. For ease of explanation, this utility model only uses the application of the spindle housing in a crankshaft milling machine tool as an example. The principle of the spindle housing in other types of equipment is essentially the same as that in crankshaft milling machine tools, and will not be described in detail here.

[0034] Please see Figure 1-3 This utility model provides a spindle housing, which includes a housing 1, a cover mechanism 2, a turbine assembly 3, a worm gear assembly 4, and a guide mechanism 5. The top of the housing 1 has an installation port 101. The cover mechanism 2 is detachably mounted on the installation port 101 of the housing 1 and has a support portion 201 that inserts into the inside of the housing 1. When the cover mechanism 2 is separated from the housing 1, the installation port 101 is open, allowing the operator to disassemble and assemble the turbine assembly 3. The disassembled cover mechanism 2 has an open operating area, facilitating the operator's disassembly and assembly of the worm gear assembly 4. Component 3 is installed inside the housing 1. It includes a turbine and accessories for mounting the turbine, so that the turbine is installed inside the housing 1 and can be driven to rotate by the worm gear in meshing with the worm, outputting to the main shaft of the housing. Worm gear assembly 4 is installed on the cover mechanism 2. It includes a worm and accessories for mounting the worm, so that the worm is installed on the cover mechanism 2 and can rotate under the drive of the motor. Guide mechanism 5 is installed inside the housing 1 and slidably connected to the cover mechanism 2. It is used to restrict the cover mechanism 2 from moving toward the worm gear meshing position and to restrict the worm axis from being perpendicular to the turbine axis.

[0035] In this embodiment, the turbine assembly 3 is installed inside the housing 1 by a main shaft passing through the turbine and a set of bearings and spacers, secured by nuts and screws. The main shaft passes through the housing 1 and extends to the outside, and a flange is installed, with a reserved interface for the installation clamp mechanism. The above structure is a conventional composition of the turbine assembly, using existing technical structures to meet the installation and use of the turbine, and will not be elaborated further or limited in this regard. The worm gear assembly 4 has a worm gear set with bearings and is inserted into the worm gear protection box. It has brackets at the top and bottom. The top bracket is connected to the motor reducer mounting seat for installing the motor reducer, and the bottom bracket is used to connect to the support part 201. The structure of the worm gear assembly 4 is also a conventional composition of worm gear installation, using existing technical structures to meet the installation and use of the worm gear, and will not be elaborated further or limited in this regard.

[0036] It should be noted that, regarding the structural composition of the turbine assembly 3 and the worm gear assembly 4, since the size of the housing 1 may vary under different usage scenarios, the corresponding number and type of accessories will be adjusted accordingly. These adjustments are all conventional adaptations operable by those skilled in the art; therefore, the specific composition of the components is not uniquely limited. For the turbine assembly or worm gear assembly, it is sufficient to provide mounting for the turbine and worm gear. The specific composition of the turbine assembly and worm gear assembly is not an improved structural part of this utility model; existing technical structures can be used, and therefore will not be elaborated upon here.

[0037] In one embodiment, please refer to Figure 1 To provide sufficient operating space and facilitate the disassembly of the turbine assembly 3 after disassembly, the mounting port 101 extends from the top of the housing 1 to the side of the housing 1 away from the turbine assembly 3. The cross-sectional shape of the mounting port 101 is L-shaped, providing sufficient operating space. The cover mechanism 2 includes a closing cover 21 that matches the mounting port 101, which can close the L-shaped mounting port 101. The support part 201 includes a support frame 201a, which is fixedly connected to the bottom of the closing cover 21. One end of the worm gear assembly 4 is connected to the support frame 201a, and the other end passes through the closing cover 21 and is connected to the closing cover 21. The support part 201 supports the bottom of the worm gear assembly 4, and the top of the closing cover 21 limits its connection.

[0038] In this embodiment, a through-hole is provided at the top of the closed cover 21 for the worm gear assembly 4 to pass through upwards. The motor assembly is installed on the top of the worm gear assembly 4. Furthermore, the worm gear assembly 4 is fixed to the through-hole position by a bolt assembly. The bottom of the worm gear assembly 4 is connected to the support frame 201a by bolts, so that the worm on the worm gear assembly 4 is in a vertical state, controlling its verticality to facilitate assembly perpendicular to the axis of the turbine.

[0039] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 3 To provide guidance during assembly and avoid tooth surface collisions during installation or disassembly, the guide mechanism 5 includes a guide rail 51 that guides the cover mechanism 2 to slide along a first direction, which is horizontal, parallel to the radial direction of the turbine, and aligned with the side of the turbine. When the cover mechanism 2 slides along the guide rail 51, the height of the worm gear matches the height of the turbine, resulting in aligned meshing heights. Sliding closer together forms engagement, and sliding in the opposite direction allows for separation of the turbine and worm gear. The support part 201 is provided with a groove 201b that matches the guide rail 51. The groove 201b is slidably connected to the guide rail 51. When the support part 201 is fitted onto the guide rail 51, the guide rail 51 is inserted into the groove 201b, which limits the support part 201 in the front-back direction to prevent it from deviating from the guiding direction. Furthermore, the groove 201b is flush with the guide rail 51, which provides horizontal guidance, so that the axis of the worm is in a position perpendicular to the turbine axis. This allows the cover mechanism 2 to slide linearly toward the worm gear meshing position. The guide rail 51 is provided with a stop block 51a arranged at the end of the sliding direction to abut against the support part 201 and position the cover mechanism 2. When the support part 201 is slid and abuts against the stop block 51a, the installation and positioning are completed and the cover is in the meshing position. Then, the closing cover 21 of the cover mechanism 2 is locked to the housing 1 with bolts.

[0040] Furthermore, in order to finely adjust the axial position of the worm gear and adjust the clearance of the worm gear during installation, the guide mechanism 5 also includes a lifting base 52. The lifting base 52 is installed at the bottom of the housing 1, and its lifting end is connected to the guide rail 51 for adjusting the height position of the guide rail 51 along the worm gear axis.

[0041] Specifically, the lifting base 52 includes a threaded column 521, an outer sleeve 522, an inner cylinder 523, and a support base 524. The inner cylinder 523 is fixedly connected to the inner bottom wall of the housing 1, and the threaded column 521 penetrates the inner bottom wall of the housing 1 and is threadedly connected to the inner cylinder 523. The outer sleeve 522 is sleeved on the outside of the inner cylinder 523. The guide rail 51 is installed on the top of the outer sleeve 522. By rotating the threaded column 521, the outer sleeve 522 is pushed upward, thereby pushing the guide rail 51 to move, thus forming an axial adjustment of the worm gear.

[0042] Furthermore, for ease of operation, the top of the threaded cylinder 521 is provided with a top block 521a that abuts against the guide rail 51, and the top block 521a abuts against the outer sleeve 522. The bottom of the threaded cylinder 521 is provided with a hexagonal post 521b, which facilitates operation on the top of the housing 1 using tools such as wrenches. At the same time, a gap is left at the top of the housing 1 so that tools can be directly rotated and adjusted on the bottom hexagonal post 521b without disassembling the housing 1.

[0043] Understandably, during operation, rotating the hexagonal column 521b first can finely adjust the height position of the guide rail 51, thereby finely adjusting the worm gear clearance to a relatively optimal clearance, reducing noise. Finally, tighten the bolts to secure the closing cover to the housing.

[0044] Furthermore, to improve stability, a shim 525 is inserted between the hexagonal column 521b and the inner bottom wall of the support base 524. After rotating and adjusting the hexagonal column 521b, a suitable shim 525 can be selected to support it according to the gap between the hexagonal column 521b and the inner bottom wall of the support base 524. The shim 525 can be replaced or added or removed from outside the box 1 without the need for additional disassembly of the box 1 and the cover, which is convenient for operation.

[0045] Furthermore, to avoid twisting, both the outer sleeve 522 and the inner sleeve 523 are square. The square shape provides an anti-twisting effect and improves the guiding stability of lifting.

[0046] Furthermore, to provide guidance and locking, the cover mechanism 2 is provided with several bolts 202. The bolts 202 are threadedly connected to the housing 1, and the bolts 202 are parallel to the lifting direction of the lifting base 52. When the worm gear teeth are worn and axial clearance needs to be adjusted, the bolts 202 are loosened. The bolts parallel to the lifting direction can provide sliding guidance for the displacement of the cover mechanism 2. After fine-tuning the clearance, the bolts 202 are tightened again.

[0047] Furthermore, to facilitate observation and operation without removing the cover, the closed cover 21 is provided with an observation port 203, and an observation window 204 is detachably connected to the observation port 203. The internal condition can be viewed through the observation window 204, and certain maintenance operations, such as lubrication, can be performed by removing the observation window 204.

[0048] To better understand this utility model, the following is combined with... Figures 1 to 3 The technical solution of this utility model is described in detail as follows: During installation, the turbine assembly 3 is installed onto the housing 1, and the worm gear assembly 4 is installed onto the cover mechanism 2, and then assembled. During assembly, the support frame 201a of the support part 201 is inserted into the mounting port 101, enters the housing 1, and slides with the guide rail 51. Along the guiding direction of the guide rail 51, it is flat and slids, and the support frame 201a abuts against the stop block 51a. Finally, the bolt 202 is installed to fasten the closing cover 21 onto the housing 1. If it is necessary to adjust the axial position of the worm gear, the bolt 202 is loosened, and then the hexagonal column is rotated to rotate the threaded column 521, thereby adjusting the height of the guide rail 51.

[0049] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A spindle housing, characterized in that, include: The housing has an installation opening on its top; A cover mechanism, which is detachably mounted on the mounting port of the box and has a support portion that inserts into the inside of the box; A turbine assembly, which is installed inside the housing; The worm gear assembly, which is mounted on the cover mechanism; and A guide mechanism, which is installed on the inner side of the housing and slidably connected to the cover mechanism, is used to restrict the cover mechanism from moving toward the worm gear engagement position and to restrict the worm gear axis from being perpendicular to the turbine axis.

2. The spindle housing according to claim 1, characterized in that, The mounting port extends from the top of the housing to the side of the housing away from the turbine assembly. The cover mechanism includes a closed cover that matches the mounting port. The support includes a support frame that is fixedly connected to the bottom of the closed cover. One end of the worm gear assembly is connected to the support frame, and the other end passes through the closed cover and is connected to the closed cover.

3. The spindle housing according to claim 1, characterized in that, The guiding mechanism includes a guide rail that guides the cover mechanism to slide along a first direction. The support part is provided with a groove that matches the guide rail. The cover mechanism slides linearly toward the worm gear meshing position through the groove and slides with the guide rail. The guide rail is provided with a stop block arranged at the tail end in the sliding direction to abut the support part and position the cover mechanism at the insertion position.

4. The spindle housing according to claim 3, characterized in that, The guiding mechanism also includes a lifting base, which is installed at the bottom of the housing and has its lifting end connected to the guide rail for adjusting the height of the guide rail along the worm gear axis.

5. The spindle housing according to claim 4, characterized in that, The lifting base includes a threaded cylinder, an outer sleeve, an inner cylinder, and a support base. The inner cylinder is fixedly connected to the inner bottom wall of the housing, and the threaded cylinder penetrates the inner bottom wall of the housing and is threadedly connected to the inner cylinder. The outer sleeve is fitted onto the outside of the inner cylinder, and the guide rail is installed on the top of the outer sleeve.

6. The spindle housing according to claim 5, characterized in that, The top of the threaded cylinder is provided with a top block that abuts against the guide rail, and the bottom of the threaded cylinder is provided with a hexagonal column.

7. The spindle housing according to claim 6, characterized in that, A gasket is inserted between the hexagonal column and the inner bottom wall of the support base.

8. The spindle housing according to claim 5, characterized in that, Both the outer sleeve and the inner sleeve are square.

9. The spindle housing according to claim 4, characterized in that, The cover mechanism is provided with a number of bolts, which are threadedly connected to the box body and are parallel to the lifting direction of the lifting base.

10. The spindle housing according to claim 2, characterized in that, The closed cover has an observation port, and an observation window is detachably connected to the observation port.

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