Shaft head sealing structure of high and low speed shaft

Abstract

The utility model discloses a shaft head sealing structure of a high and low speed shaft, which relates to the technical field of sealing structures, and comprises an upper half fixing piece and a lower half fixing piece, the upper half fixing piece comprises a fixing rod, the upper end of the lower half fixing piece is provided with a fixing groove, the inside of the fixing groove is fixedly connected with a bottom plate, and the bottom plate is fixedly connected with the fixing rod. A plastic buckle is fixedly connected to the upper end of the bottom plate, a fastening bolt is movably connected to the upper end of the fixing groove, the inner wall of the fastening bolt is attached to the upper end of the plastic buckle, a cavity is formed in the fixing groove, and the bottom plate is fixedly connected to the bottom of the cavity. The fixing rod is inserted into the fixing groove, and then the fastening bolt is rotated to move towards the interior of the fixing groove, so that the plastic buckles are mutually clamped under the action of downward movement of the fastening bolt, the fixing rod is clamped, good stability is provided, and a worker can conveniently carry out installation operation on the fixing rod.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, in particular to a high-speed and low-speed shaft head sealing structure. Background Art

[0002] The low-speed shaft is mainly used to control the rotation speed and torque of the output shaft of the reducer, and is a key part of the reducer. In mechanical transmission, the reducer plays an important role in deceleration, torque increase and steering, ensuring the normal operation of mechanical equipment. The high-speed electric spindle is a new technology that has emerged in the field of CNC machine tools in recent years, integrating the machine tool spindle with the spindle motor. The main transmission system of high-speed CNC machine tools eliminates the pulley transmission and gear transmission. The machine tool spindle is directly driven by a built-in electric motor, thereby shortening the length of the machine tool main transmission chain to zero, realizing the "zero transmission" of the machine tool. However, the existing technology is difficult to assemble due to its complex structure during installation, which is inconvenient for the staff to install, resulting in low installation effect, which in turn affects the work efficiency. Utility Model Content

[0003] The utility model provides a high-speed and low-speed shaft head sealing structure to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A high-speed and low-speed shaft head sealing structure comprises an upper half fixing part and a lower half fixing part, wherein the upper half fixing part comprises a fixing rod, and the upper end of the lower half fixing part is provided with a fixing groove, the interior of the fixing groove is fixedly connected to a base plate, the upper end of the base plate is fixedly connected to a plastic buckle, the upper end of the fixing groove is movably connected to a fastening bolt, and the inner wall of the fastening bolt is in contact with the upper end of the plastic buckle.

[0006] A further improvement of the technical solution of the utility model is that a cavity is opened inside the fixing groove, the bottom plate is fixedly connected to the bottom of the cavity, and the plastic buckle circular array is opened on the upper surface of the bottom plate.

[0007] A further improvement of the technical solution of the utility model is that: a movable cavity is opened inside the fixing groove, the upper end of the plastic buckle is arranged inside the movable cavity, and a slot is opened inside the bottom plate, and the slot is matched with the fixing groove.

[0008] A further improvement of the technical solution of the utility model is that a thread groove is opened at the upper end of the fixing groove, the fastening bolt is threadedly engaged with the inside of the thread groove, and the fastening bolt is movably connected to the inside of the fixing groove through the thread groove.

[0009] By adopting the above technical solution, the fastening bolt in the solution can rotate and move up and down under the action of the inside of the meshing thread groove.

[0010] A further improvement of the technical solution of the utility model is that a through slot is provided inside the fastening bolt, the through slot is matched with the fixing slot, the fixing slot is matched with the fixing rod, and the slot is matched with the fixing rod.

[0011] By adopting the above technical solution, the fixing rod in the solution can be inserted into the slot, the through slot, and the fixing slot.

[0012] A further improvement of the technical solution of the utility model is that: a first inclined surface is provided at the upper end of the plastic buckle, a second inclined surface is provided at the inner side of the bottom of the fastening bolt, and the plastic buckle fits with the second inclined surface of the fastening bolt through the first inclined surface.

[0013] By adopting the above technical solution, the first inclined surface and the second inclined surface in the solution can rub against each other, so that the plastic buckles are clamped together under the action of the downward movement of the fastening bolts, thereby clamping the fixing rod, providing good stability and facilitating the installation operation by the staff.

[0014] A further improvement of the technical solution of the utility model is that a first shaft groove is opened inside the upper half fixing part, a first slide rail is opened on the inner wall of the first shaft groove, a second shaft groove is opened inside the lower half fixing part, a second slide rail is opened on the inner wall of the second shaft groove, and a locking groove is opened at one end of the second slide rail.

[0015] The above technical solution is adopted, in which the first shaft groove and the second shaft groove are used to insert the shaft head, the first slide rail and the second slide rail are communicated, and the locking groove is used to fix the shaft head.

[0016] A further improvement of the technical solution of the utility model is that a sealing sheet is fixedly connected to the upper end of the lower half fixing member, the thickness of the sealing sheet is the same as the thickness of the fastening bolt, and a rubber sealing sleeve is provided between the upper half fixing member and the lower half fixing member.

[0017] By adopting the above technical solution, after the upper half fixing member and the lower half fixing member in the solution are installed together, the sealing sheet and the upper half fixing member are tightly fitted together, and the rubber sealing sleeve can further improve the sealing performance of the device.

[0018] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0019] 1. The utility model provides a high-speed and low-speed shaft head sealing structure, which inserts a fixing rod into a fixing groove and then rotates a fastening bolt to move it into the fixing groove, so that the plastic buckles are clamped together under the action of the downward movement of the fastening bolt, thereby clamping the fixing rod, providing good stability and facilitating the installation operation of the staff.

[0020] 2. The utility model provides a high-speed and low-speed shaft head sealing structure, which provides good sealing for the equipment by tightly fitting the sealing sheet and the upper half fixing part, and further improves the sealing of the device by the rubber sealing sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of the high and low speed shaft head sealing structure according to the embodiment of the utility model;

[0022] Figure 2 It is a structural diagram of the upper half of the fixing part of the high and low speed shaft head sealing structure according to the embodiment of the utility model;

[0023] Figure 3 It is a structural diagram of the lower half of the fixing part of the high-speed and low-speed shaft head sealing structure according to the embodiment of the utility model;

[0024] Figure 4 This is a structural diagram of the fastening bolts of the high-speed and low-speed shaft head sealing structure according to an embodiment of the utility model;

[0025] Figure 5 It is a diagram showing the internal structure of the lower half of the fixing part of the high-speed and low-speed shaft head sealing structure according to an embodiment of the utility model.

[0026] In the figure: 1, upper half fixing part; 101, first shaft groove; 102, first slide rail; 103, fixing rod; 2, lower half fixing part; 201, second shaft groove; 202, second slide rail; 203, locking groove; 204, sealing sheet; 205, fixing groove; 206, cavity; 207, movable cavity; 208, threaded groove; 209, bottom plate; 2010, slot; 2011, plastic buckle; 2012, first inclined surface; 3, rubber sealing sleeve; 4, fastening bolt; 401, through groove; 402, second inclined surface. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The present invention is further described in detail below in conjunction with the embodiments:

[0029] Example 1

[0030] like Figure 1-5 As shown, the utility model provides a high-speed and low-speed shaft head sealing structure, including an upper half fixing part 1 and a lower half fixing part 2, the upper half fixing part 1 includes a fixing rod 103, the upper end of the lower half fixing part 2 is provided with a fixing groove 205, the interior of the fixing groove 205 is fixedly connected with a base plate 209, the upper end of the base plate 209 is fixedly connected with a plastic buckle 2011, the upper end of the fixing groove 205 is movably connected with a fastening bolt 4, and the inner wall of the fastening bolt 4 is in contact with the upper end of the plastic buckle 2011.

[0031] In this embodiment, the fixing rod 103 is inserted into the fixing groove 205 and then moved toward the fixing groove 205 by rotating the fastening bolt 4, so that the plastic buckles 2011 are clamped together under the action of the downward movement of the fastening bolt 4, thereby clamping the fixing rod 103, providing good stability and facilitating the installation operation by the staff.

[0032] Example 2

[0033] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a cavity 206 is opened inside the fixing groove 205, the bottom plate 209 is fixedly connected to the bottom of the cavity 206, a plastic buckle 2011 is opened in a circumferential array on the upper surface of the bottom plate 209, a movable cavity 207 is opened inside the fixing groove 205, the upper end of the plastic buckle 2011 is arranged inside the movable cavity 207, a slot 2010 is opened inside the bottom plate 209, the slot 2010 and the fixing groove 205 are matched, a threaded groove 208 is opened at the upper end of the fixing groove 205, the fastening bolt 4 is threadedly engaged with the inside of the threaded groove 208, the fastening bolt 4 is movably connected to the inside of the fixing groove 205 through the threaded groove 208, a through groove 401 is opened inside the fastening bolt 4, the through groove 401 and the fixing groove 205 are matched, the fixing groove 205 and the fixing rod 103 are matched, and the slot 2010 and the fixing rod 103 are matched.

[0034] In this embodiment, the fastening bolt 4 can rotate and move up and down under the action of the meshing thread groove 208 , and the fixing rod 103 can be inserted into the slot 2010 , the through slot 401 , and the fixing slot 205 .

[0035] Example 3

[0036] like Figure 1-5As shown, on the basis of Example 1 and Example 2, the utility model provides a technical solution: preferably, a first inclined surface 2012 is provided at the upper end of the plastic buckle 2011, and a second inclined surface 402 is provided at the inner side of the bottom of the fastening bolt 4, the plastic buckle 2011 is fitted with the second inclined surface 402 of the fastening bolt 4 through the first inclined surface 2012, a first shaft groove 101 is provided inside the upper half fixing part 1, a first slide rail 102 is provided on the inner wall of the first shaft groove 101, a second shaft groove 201 is provided inside the lower half fixing part 2, a second slide rail 202 is provided on the inner wall of the second shaft groove 201, a locking groove 203 is provided at one end of the second slide rail 202, a sealing sheet 204 is fixedly connected to the upper end of the lower half fixing part 2, the thickness of the sealing sheet 204 is the same as the thickness of the fastening bolt 4, and a rubber sealing sleeve 3 is provided between the upper half fixing part 1 and the lower half fixing part 2.

[0037] In this embodiment, the first inclined surface 2012 and the second inclined surface 402 can rub against each other, so that the plastic buckle 2011 is clamped together under the action of the downward movement of the fastening bolt 4, and then the fixing rod 103 is clamped, providing good stability and facilitating the installation operation by the staff. The first shaft groove 101 and the second shaft groove 201 are used to insert the shaft head, the first slide rail 102 and the second slide rail 202 are connected, and the locking groove 203 is used to fix the shaft head. After the upper half fixing part 1 and the lower half fixing part 2 are installed together, the sealing sheet 204 and the upper half fixing part 1 are tightly fitted together, and the rubber sealing sleeve 3 can further improve the sealing performance of the device.

[0038] The working principle of the high and low speed shaft head sealing structure is described in detail below.

[0039] like Figure 1-5 As shown, by inserting the fixing rod 103 into the fixing groove 205, and then rotating the fastening bolt 4 to move it into the fixing groove 205, during the movement, the first inclined surface 2012 and the second inclined surface 402 will rub against each other, so that the plastic buckle 2011 is clamped with each other under the action of the downward movement of the fastening bolt 4, thereby clamping the fixing rod 103, and then fixing the fixing rod 103 in the fixing groove 205, so that the upper half fixing part 1 and the lower half fixing part 2 are fixed together, and then the rubber sealing sleeve 3 is sleeved in the gap between the upper half fixing part 1 and the lower half fixing part 2.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-speed and low-speed shaft head sealing structure, comprising an upper half fixing part (1) and a lower half fixing part (2), characterized in that: The upper half fixing part (1) comprises a fixing rod (103); the upper end of the lower half fixing part (2) is provided with a fixing groove (205); the interior of the fixing groove (205) is fixedly connected to a bottom plate (209); the upper end of the bottom plate (209) is fixedly connected to a plastic buckle (2011); the upper end of the fixing groove (205) is movably connected to a fastening bolt (4); the inner wall of the fastening bolt (4) is in contact with the upper end of the plastic buckle (2011).

2. A high-speed and low-speed shaft head sealing structure according to claim 1, characterized in that: A cavity (206) is provided inside the fixing groove (205), the bottom plate (209) is fixedly connected to the bottom of the cavity (206), and a circular array of plastic buckles (2011) is provided on the upper surface of the bottom plate (209).

3. A high-speed and low-speed shaft head sealing structure according to claim 1, characterized in that: The fixing groove (205) is provided with an active cavity (207), the upper end of the plastic buckle (2011) is arranged inside the active cavity (207), and the bottom plate (209) is provided with a slot (2010), and the slot (2010) and the fixing groove (205) are matched.

4. A high-speed and low-speed shaft head sealing structure according to claim 1, characterized in that: A thread groove (208) is provided at the upper end of the fixing groove (205), and the fastening bolt (4) is threadedly engaged with the inside of the thread groove (208). The fastening bolt (4) is movably connected to the inside of the fixing groove (205) through the thread groove (208).

5. A high-speed and low-speed shaft head sealing structure according to claim 3, characterized in that: A through slot (401) is provided inside the fastening bolt (4), the through slot (401) is matched with the fixing slot (205), the fixing slot (205) is matched with the fixing rod (103), and the slot (2010) is matched with the fixing rod (103).

6. A high-speed and low-speed shaft head sealing structure according to claim 1, characterized in that: The upper end of the plastic buckle (2011) is provided with a first inclined surface (2012), the inner side of the bottom of the fastening bolt (4) is provided with a second inclined surface (402), and the plastic buckle (2011) is fitted with the second inclined surface (402) of the fastening bolt (4) via the first inclined surface (2012).

7. The high-speed and low-speed shaft head sealing structure according to claim 1 is characterized by: The upper half fixing part (1) is provided with a first shaft groove (101) inside, the inner wall of the first shaft groove (101) is provided with a first slide rail (102), the lower half fixing part (2) is provided with a second shaft groove (201) inside, the inner wall of the second shaft groove (201) is provided with a second slide rail (202), and one end of the second slide rail (202) is provided with a locking groove (203).

8. The high-speed and low-speed shaft head sealing structure according to claim 1 is characterized in that: A sealing sheet (204) is fixedly connected to the upper end of the lower half fixing part (2), the thickness of the sealing sheet (204) being the same as the thickness of the fastening bolt (4), and a rubber sealing sleeve (3) is provided between the upper half fixing part (1) and the lower half fixing part (2).

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