Overrunning thruster

Abstract

The utility model discloses an overrunning thruster which comprises a ring body, a plurality of chutes are distributed on the inner circumference of the ring body, pin rollers coaxial with the ring body are arranged in the chutes, the side walls of the pin rollers are exposed out of the chutes, when the ring body rotates, the chutes extrude the pin rollers to tightly hold a shaft column and a driving sleeve, one end of the driving sleeve is arranged on the ring body in a sleeved mode, and the driving sleeve is connected with the ring body in an axial sliding mode. Annular grooves are formed in the ends, close to the ring body, of the driving ring and the driving sleeve, the driving ring is rotationally connected into the annular grooves, an inclined table is arranged at the end, close to the ring body, of the driving ring, a protruding part matched with the inclined table is arranged at the end of the ring body, and the inclined table and the protruding part form a cam or ratchet wheel structure. According to the overrunning thruster, the skewed slot is formed in the ring body and matched with the pin roller to form an overrunning structure locking shaft column (when the ring body rotates, the skewed slot drives the pin roller to move to extrude and enclasp the shaft column), meanwhile, the driving ring and the protruding part form a cam or ratchet wheel structure, and then the driving sleeve axially moves to extrude and install the bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing installers, and more specifically relates to a transcending thruster. Background Art

[0002] When installing the bearing, especially when the inner and outer rings are installed at the same time, a double-layer sleeve is often used to press the inner and outer rings of the bearing respectively, and then the knocking method is used for installation.

[0003] This manual tapping installation method usually has the problem of low installation accuracy and bearing damage. When tapping, usually only one point is tapped, which will cause uneven force on the bearing; even if two workers tap at the same time, there will still be uneven force, causing bearing damage.

[0004] Therefore, a device capable of evenly applying force to install bearings is needed to assist workers. Utility Model Content

[0005] The utility model aims to provide a transcending thruster in view of the deficiencies in the prior art, so as to solve the problems of uneven force on the existing bearing installation, laborious installation and easy damage to the bearing.

[0006] In order to achieve the above object, the utility model provides a transcending thruster, comprising:

[0007] A ring body, wherein a plurality of inclined grooves are distributed on the inner circumference of the ring body, wherein rollers coaxial with the ring body are arranged in the inclined grooves, wherein the side walls of the rollers are exposed in the inclined grooves, and when the ring body rotates, the inclined grooves squeeze the rollers to hold the shaft column tightly;

[0008] A driving sleeve, one end of which is sleeved on the ring body, and the driving sleeve is axially slidably connected to the ring body;

[0009] A driving ring, wherein an annular groove is arranged at one end of the driving sleeve close to the ring body, the driving ring is rotatably connected in the annular groove, an inclined platform is arranged at one end of the driving ring close to the ring body, a raised portion matching with the inclined platform is arranged at the end of the ring body, and the inclined platform and the raised portion constitute a cam or ratchet structure.

[0010] Optionally, two ends of the roller are respectively exposed from the ring body, and the ring body comprises:

[0011] A ring body, wherein the inner circumference of the ring body is provided with a plurality of oblique ribs with a triangular cross section, and two adjacent oblique ribs form the oblique groove with a right-angled trapezoidal cross section;

[0012] An outer pressure plate, the outer pressure plate is arranged at one end of the ring body, and the outer pressure plate is provided with an outer guide groove matching with the exposed end of the roller;

[0013] An inner pressure plate is arranged at the other end of the ring body, and the inner pressure plate is provided with an inner guide groove matching with the inner exposed end of the roller.

[0014] Optionally, the raised portion includes a plurality of hemispherical protrusions, and the protrusions are arranged on the inner pressure plate.

[0015] Optionally, a handle is provided on the outer periphery of the ring body.

[0016] Optionally, a driving rod is further included, the side wall of the ring groove is provided with a through groove, the outer periphery of the driving ring is provided with a driving hole, and one end of the driving rod passes through the through groove and is detachably connected to the driving hole.

[0017] Optionally, an elastic component is further included to provide a force to make the drive ring close to the protrusion.

[0018] Optionally, a rotary bearing is further provided in the annular groove, and two ends of the rotary bearing are respectively connected to the driving ring and the elastic component.

[0019] Optionally, the elastic component is arranged in the annular groove, and two ends thereof are respectively connected to the rotary bearing and the bottom of the annular groove.

[0020] Optionally, the elastic component includes a first spring ring coaxial with the ring body.

[0021] Optionally, the elastic component includes a plurality of circumferentially distributed second spring coils.

[0022] The utility model provides a transcending thruster, which has the following beneficial effects:

[0023] The overrunning thruster forms an overrunning structure to lock the shaft column by arranging inclined grooves and rollers in the ring body (when the ring body rotates, the inclined grooves drive the rollers to move and squeeze the shaft column), and at the same time, the driving ring and the protrusion form a cam or ratchet structure, thereby causing the driving sleeve to move axially and squeeze the installed bearing.

[0024] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0026] Figure 1 A schematic structural diagram of a transcending thruster according to an embodiment of the utility model is shown.

[0027] Figure 2 A schematic structural diagram of a chute of an overrunning thruster according to an embodiment of the utility model is shown.

[0028] Figure 3 A schematic structural diagram of a driving ring of an overrunning thruster according to an embodiment of the utility model is shown.

[0029] Description of reference numerals:

[0030] 1. Ring body; 2. Inclined groove; 3. Roller; 4. Driving sleeve; 5. Driving ring; 6. Protrusion; 7. Through groove; 8. Driving hole; 9. Elastic component; 10. Rotating bearing. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0032] like Figure 1-3 As shown, a transcending thruster comprises:

[0033] The ring body 1 has a plurality of inclined grooves 2 distributed on the inner circumference thereof, and rollers 3 coaxial with the ring body 1 are arranged in the inclined grooves 2, and the side walls of the rollers 3 are exposed outside the inclined grooves 2. When the ring body 1 rotates, the inclined grooves 2 squeeze the rollers 3 to hold the shaft column tightly;

[0034] A driving sleeve 4, one end of which is sleeved on the ring body 1, and the driving sleeve 4 is axially slidably connected to the ring body 1;

[0035] The driving ring 5 and the driving sleeve 4 are provided with an annular groove at one end close to the ring body 1, and the driving ring 5 is rotatably connected in the annular groove. The driving ring 5 is provided with an inclined platform at one end close to the ring body 1, and the end of the ring body 1 is provided with a raised portion 6 that matches the inclined platform. The inclined platform and the raised portion 6 constitute a cam or ratchet structure.

[0036] Specifically, the inclined groove 2 is arranged in the ring body 1 to cooperate with the roller 3 to form a transcending structure to lock the shaft column (when the ring body 1 rotates, the inclined groove 2 drives the roller 3 to move and squeeze the shaft column), and at the same time, the driving ring 5 and the protrusion 6 form a cam or ratchet structure, thereby making the driving sleeve 4 move axially to squeeze the installed bearing.

[0037] In this embodiment, both ends of the roller 3 are exposed from the ring body 1, and the ring body 1 includes:

[0038] A ring body, wherein the inner periphery of the ring body is provided with a plurality of oblique ribs with a triangular cross section, and two adjacent oblique ribs form an oblique groove 2 with a right-angled trapezoidal cross section;

[0039] An outer pressure plate, which is arranged at one end of the ring body and is provided with an outer guide groove matching with the exposed end of the roller 3;

[0040] The inner pressure plate is arranged at the other end of the ring body, and the inner pressure plate is provided with an inner guide groove matching with the inner exposed end of the roller 3.

[0041] Specifically, the movement trajectory of the roller 3 is guided and limited by the inner guide groove and the outer guide groove.

[0042] In this embodiment, the protrusion 6 includes a plurality of hemispherical protrusions, and the protrusions are arranged on the inner pressure plate.

[0043] Specifically, the driving sleeve 4 moves axially through the cooperation between the protrusion and the ramp.

[0044] In this embodiment, a handle is provided on the outer periphery of the ring body 1 .

[0045] Specifically, the handle facilitates carrying and driving the ring body 1 to rotate.

[0046] In this embodiment, a driving rod is also included. A through groove 7 is provided on the side wall of the ring groove. A driving hole 8 is provided on the outer periphery of the driving ring 5. One end of the driving rod passes through the through groove 7 and is detachably connected to the driving hole 8.

[0047] Specifically, the driving rod is connected to the driving hole 8 to drive the driving ring 5 to rotate.

[0048] Furthermore, a triangular force-applying portion is provided on one side of the driving rod.

[0049] In this embodiment, an elastic component 9 is further included to provide a force to make the driving ring 5 close to the protrusion 6 .

[0050] Specifically, the elastic component 9 ensures that the inclined platform and the protruding portion 6 are in contact.

[0051] In this embodiment, a rotary bearing 10 is further provided in the annular groove, and two ends of the rotary bearing 10 are connected to the driving ring 5 and the elastic component 9 respectively.

[0052] Specifically, the rotational force is offset by the rotating bearing 10 so that the driving sleeve 4 only moves axially.

[0053] In this embodiment, the elastic component 9 is disposed in the annular groove, and its two ends are respectively connected to the rotary bearing 10 and the bottom of the annular groove.

[0054] Specifically, the elastic component 9 simultaneously prevents the rotary bearing 10 from becoming disordered and also prevents the elastic component 9 from being subjected to a rotational force.

[0055] In this embodiment, the elastic component 9 includes a first spring ring coaxial with the ring body 1 .

[0056] Specifically, a spring coil with a large diameter is used as the elastic component 9 to ensure uniform elastic force.

[0057] In this embodiment, the elastic component 9 includes a plurality of circumferentially distributed second spring coils.

[0058] Specifically, a plurality of spring coils with small diameters are used together as the elastic component 9, which facilitates maintenance.

[0059] In the present embodiment, when an overrunning thruster is used, it is taken as an example that a device needs to be replaced online due to bearing damage, and other parts of the device cannot be disassembled due to structural or operational limitations, and only a part of the shaft end of the shaft column where the bearing is installed is exposed, and the outer ring of the bearing also needs to be installed in the frame of the device at the same time;

[0060] Put the thruster on the shaft column and rotate the ring body 1. When the ring body 1 rotates, the inclined groove 2 drives the roller 3 to move and squeeze the shaft column;

[0061] Then, the drive ring 5 is rotated, and the inclined platform and the protrusion 6 contact and drive the drive sleeve 4 to move axially, thereby squeezing the bearing installation.

[0062] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A transcending thruster, characterized in that: include: A ring body, wherein a plurality of inclined grooves are distributed on the inner circumference of the ring body, wherein rollers coaxial with the ring body are arranged in the inclined grooves, wherein the side walls of the rollers are exposed in the inclined grooves, and when the ring body rotates, the inclined grooves squeeze the rollers to hold the shaft column tightly; A driving sleeve, one end of which is sleeved on the ring body, and the driving sleeve is axially slidably connected to the ring body; A driving ring, wherein an annular groove is arranged at one end of the driving sleeve close to the ring body, the driving ring is rotatably connected in the annular groove, an inclined platform is arranged at one end of the driving ring close to the ring body, a raised portion matching with the inclined platform is arranged at the end of the ring body, and the inclined platform and the raised portion constitute a cam or ratchet structure.

2. The overrunning thruster according to claim 1, characterized in that: Both ends of the roller are exposed from the ring body, and the ring body comprises: A ring body, wherein the inner circumference of the ring body is provided with a plurality of oblique ribs with a triangular cross section, and two adjacent oblique ribs form the oblique groove with a right-angled trapezoidal cross section; An outer pressure plate, the outer pressure plate is arranged at one end of the ring body, and the outer pressure plate is provided with an outer guide groove matching with the exposed end of the roller; An inner pressure plate is arranged at the other end of the ring body, and the inner pressure plate is provided with an inner guide groove matching with the inner exposed end of the roller.

3. The overrunning thruster according to claim 2, characterized in that: The protrusion includes a plurality of hemispherical convex points, and the convex points are arranged on the inner pressure plate.

4. The overrunning thruster according to claim 1, characterized in that: A handle is arranged on the outer periphery of the ring body.

5. The overrunning thruster according to claim 1, characterized in that: It also includes a driving rod, the side wall of the ring groove is provided with a through groove, the outer periphery of the driving ring is provided with a driving hole, and one end of the driving rod passes through the through groove and is detachably connected to the driving hole.

6. The overrunning thruster according to claim 1, characterized in that: An elastic component is also included, which is used to provide a force to make the driving ring close to the protruding portion.

7. The overrunning thruster according to claim 6, characterized in that: A rotary bearing is also arranged in the annular groove, and two ends of the rotary bearing are respectively connected to the driving ring and the elastic component.

8. The overrunning thruster according to claim 7, characterized in that: The elastic component is arranged in the annular groove, and two ends thereof are respectively connected to the rotary bearing and the groove bottom of the annular groove.

9. The overrunning thruster according to claim 8, characterized in that: The elastic component comprises a first spring ring coaxial with the ring body.

10. The overrunning thruster according to claim 8, characterized in that: The elastic component includes a plurality of circumferentially distributed second spring coils.

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