A gear box

Abstract

The utility model relates to gear box technical field, specifically disclose a gear box, including box, planetary carrier, bearing assembly with seat and bearing endoscopic structure, the box has first installation department, the planetary carrier has second installation department, bearing assembly with seat is located between first installation department and second installation department, bearing endoscopic structure is located in the box, and bearing endoscopic structure includes endoscopic channel, and the both ends of endoscopic channel are connected with the circumferential end face of bearing assembly with seat and the box outside respectively, the utility model discloses the setting of bearing endoscopic structure can make the establishment of the endoscopic channel of communication between the box outside and bearing assembly with seat, and the radial inclination setting of at least partial endoscopic channel relative to bearing assembly with seat makes the detection equipment when checking bearing assembly with seat can have certain inclination angle, and the axial end face of bearing assembly with seat is checked to the check equipment, to this avoids the internal structure of gear box complex and causes the endoscopic check of being unable.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box technical field especially relates to a gear box. BACKGROUND

[0002] Gear box is a kind of basic transmission device, is widely used in various mechanical equipment, mainly for transmission and conversion power.With the rapid development of large megawatt gear box, the torque density of gear box is constantly improved, and gear box structure is increasingly compact, and in the relatively limited space, the use situation of each position bearing is checked to avoid the gear box failure caused by bearing damage.

[0003] In prior art, the through hole is usually arranged at the corresponding position of gear box body and planet carrier to realize the endoscopic examination of bearing, but when facing the high integration gear box structure, the bearing between inner and outer ring bearing seat cannot be endoscopically examined due to the complex internal structure, thereby the bearing cannot be regularly checked, and the safety of gear box is influenced. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of gear box, to solve the problem that the bearing between inner and outer ring bearing seat cannot be endoscopically examined due to the complex internal structure of gear box in prior art, thereby the bearing cannot be regularly checked, and the safety of gear box is influenced.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of gear box, comprising:

[0007] Box body, the box body has first installation part;

[0008] Planet carrier, the planet carrier has second installation part;

[0009] Bearing assembly with seat, the bearing assembly with seat is located between the first installation part and the second installation part;

[0010] Bearing endoscopic structure, is located in the box body, the bearing endoscopic structure includes endoscopic channel, the two ends of the endoscopic channel are communicated with the axial end surface of the bearing assembly with seat and the box body outside respectively, and at least part of the endoscopic channel is relatively inclinedly arranged with respect to the bearing assembly with seat.

[0011] As an optional scheme of the above gear box, the bearing endoscopic structure includes endoscopic tube and communication hole, the endoscopic tube is located in the box body, the communication hole is arranged in the first installation part and communicated with the bearing assembly with seat, and the endoscopic tube is communicated with the communication hole to form the endoscopic channel.

[0012] As an alternative to the above-mentioned gear box, the communication hole extends along the axial direction of the belt seat bearing assembly and is arranged opposite to the bearing body of the belt seat bearing assembly.

[0013] As an alternative to the above-mentioned gear box, the endoscope tube is arranged radially inclined with respect to the belt seat bearing assembly.

[0014] As an alternative to the above-mentioned gear box, the endoscope tube and the box body are integrally formed.

[0015] As an alternative to the above-mentioned gear box, the belt seat bearing assembly comprises an outer ring bearing seat, an inner ring bearing seat, and a bearing body arranged between the outer ring bearing seat and the inner ring bearing seat; the outer ring bearing seat is embedded in the first mounting portion, and the inner ring bearing seat is sleeved on the second mounting portion.

[0016] As an alternative to the above-mentioned gear box, the first mounting portion is provided with a first stepped groove on the side facing the second mounting portion, and the outer ring bearing seat abuts against the first stepped groove; the second mounting portion is provided with a second stepped groove on the side facing the first mounting portion, and the inner ring bearing seat abuts against the second stepped groove.

[0017] As an alternative to the above-mentioned gear box, the gear box further comprises a screw plug, and the endoscope channel is provided with a threaded hole at one end outside the box body, and the screw plug is threadedly connected to the threaded hole.

[0018] As an alternative to the above-mentioned gear box, the gear box further comprises a sealing gasket, which is arranged between the screw plug and the box body and used for sealing the gap between the screw plug and the box body.

[0019] As an alternative to the above-mentioned gear box, the box body is provided with a mounting plane at the opening of the threaded hole, and the sealing gasket is arranged on the mounting plane.

[0020] The utility model discloses the beneficial effects are:

[0021] The gearbox includes a housing, a planetary carrier, a mounted bearing assembly, and a bearing endoscope structure. The housing has a first mounting portion, the planetary carrier has a second mounting portion, the mounted bearing assembly is located between the first and second mounting portions, and the bearing endoscope structure is located within the housing. The bearing endoscope structure includes an endoscope channel, with both ends connecting the axial end face of the mounted bearing assembly and the outside of the housing, respectively. This endoscope structure establishes a connecting endoscope channel between the outside of the housing and the mounted bearing assembly. Furthermore, at least a portion of the endoscope channel is radially inclined relative to the mounted bearing assembly, allowing the inspection equipment to maintain a certain tilt angle when inspecting the mounted bearing assembly. This facilitates inspection of the axial end face of the mounted bearing assembly, avoiding the inability to perform endoscope inspections due to the complex internal structure of the gearbox. The bearings in this gearbox can be periodically inspected, preventing gearbox failures caused by bearing damage and improving the safety of the gearbox during use. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the gearbox provided in an embodiment of the present invention.

[0023] In the picture:

[0024] 1. Housing; 11. First mounting part; 111. First stepped groove; 112. Connecting hole; 12. Mounting plane; 2. Planetary carrier; 21. Second mounting part; 211. Second stepped groove; 3. Bearing assembly with seat; 31. Outer ring bearing housing; 32. Inner ring bearing housing; 33. Bearing body; 4. Endoscope tube; 41. Endoscope channel; 5. Plug; 6. Sealing gasket. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore cannot be understood as the limitation of the utility model. In addition, the term "first", "second", is only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the term "first position" and "second position" are two different positions, and, the first feature is "above", "above" and "above" of the second feature, including the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" of the second feature, including the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the term "installation", "connection", "connection" should be broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0028] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0029] As Figure 1 Indicated, the present embodiment provides a gear box, for endoscopic examination of bearing in the gear box.

[0030] The gearbox comprises a box body 1, a planet carrier 2, a bearing carrier assembly 3 and a bearing endoscope structure. The box body 1 has a first mounting portion 11, the planet carrier 2 has a second mounting portion 21, the bearing carrier assembly 3 is arranged between the first mounting portion 11 and the second mounting portion 21, and the bearing endoscope structure is arranged in the box body 1. The bearing endoscope structure comprises an endoscope channel 41, two ends of the endoscope channel 41 are respectively communicated with an axial end surface of the bearing carrier assembly 3 and an outer surface of the box body 1, so that the endoscope channel 41 is established between the outer surface of the box body 1 and the bearing carrier assembly 3, and at least part of the endoscope channel 41 is arranged radially inclined to the bearing carrier assembly 3, so that the detection equipment can have a certain inclination angle when checking the bearing carrier assembly 3, and the axial end surface of the bearing carrier assembly 3 is conveniently checked by the detection equipment. Thus, the internal structure of the gearbox is complex and cannot be endoscopically checked, the bearing in the gearbox can be regularly checked, the gearbox failure caused by bearing damage is avoided, and the safety of the gearbox in use is improved.

[0031] Specifically, the bearing endoscope structure comprises an endoscope tube 4 and a communication hole 112. The endoscope tube 4 is arranged in the box body 1, the communication hole 112 is arranged on the first mounting portion 11 and communicates with the bearing carrier assembly 3, the endoscope tube 4 is communicated with the communication hole 112 to form the endoscope channel 41. The bearing carrier assembly 3 is exposed from the first mounting portion 11 by arranging the communication hole 112 on the first mounting portion 11, and the endoscope tube 4 is arranged in the box body 1, so that the endoscope channel 41 formed thereby can extend to the outer surface of the box body 1, thereby facilitating the detection equipment to endoscopically check the bearing carrier assembly 3 through the endoscope channel 41. The communication hole 112 extends along the axial direction of the bearing carrier assembly 3 and is arranged opposite to the bearing body 33 of the bearing carrier assembly 3, so that the endoscope channel 41 can be used to endoscopically check the bearing body 33 after the detection equipment is arranged in the endoscope channel 41, and the problem that the remaining parts block the bearing body 33 in the radial direction and cannot be endoscopically checked is solved.

[0032] Meanwhile, the endoscope tube 4 is arranged radially inclined to the bearing carrier assembly 3, so that the detection equipment can have a certain inclination angle when checking the bearing carrier assembly 3, and the protruding part of the box body 1 does not interfere with the detection equipment, thereby facilitating the detection equipment to be arranged in the endoscope channel 41. Optionally, the endoscope tube 4 and the box body 1 are integrally formed, so that the endoscope tube 4 can be directly formed in the box body 1 during manufacturing, thereby reducing the subsequent welding or screwing process.

[0033] Further, the bearing assembly 3 comprises an outer ring bearing seat 31, an inner ring bearing seat 32, and a bearing body 33 arranged between the outer ring bearing seat 31 and the inner ring bearing seat 32, the outer ring bearing seat 31 is embedded in the first mounting portion 11, and the inner ring bearing seat 32 is sleeved on the second mounting portion 21, so that the first mounting portion 11 and the second mounting portion 21 between the box body 1 and the planet carrier 2 can be supported and protected by the arrangement of the outer ring bearing seat 31, the inner ring bearing seat 32 and the bearing body 33, and the stability of the first mounting portion 11 relative to the second mounting portion 21 during rotation is ensured, and at the same time, since the inner inspection channel 41 communicates with the axial end face of the bearing assembly 3, the outer ring bearing seat 31 and the inner ring bearing seat 32 cannot block the bearing body 3 in the radial direction, so that the endoscopic examination cannot be realized.

[0034] Further, the first mounting portion 11 is provided with a first stepped groove 111 on the side facing the second mounting portion 21, the outer ring bearing seat 31 abuts against the first stepped groove 111, and the second mounting portion 21 is provided with a second stepped groove 211 on the side facing the first mounting portion 11, the inner ring bearing seat 32 abuts against the second stepped groove 211, so that the outer ring bearing seat 31 can be limited by abutting against the first stepped groove 111, the inner ring bearing seat 32 can be limited by abutting against the second stepped groove 211, and the bearing assembly 3 as a whole can be supported and protected. Optionally, the communication hole 112 is opened on the groove wall of the first stepped groove 111.

[0035] Further, the gear box further comprises a screw plug 5, one end of the endoscopic channel 41 communicating outside the box body 1 is provided with a threaded hole, and the screw plug 5 is threadedly connected to the threaded hole, so that after the screw plug 5 is removed from the threaded hole, the equipment can be conveniently inserted into the endoscopic channel 41, and when endoscopic examination is not needed, the screw plug 5 can block the threaded hole to protect the inside of the box body 1. Optionally, the gear box further comprises a sealing gasket 6, which is located between the screw plug 5 and the box body 1, and is used to seal the gap between the screw plug 5 and the box body 1, so as to seal the inside of the box body 1 and prevent external water vapor from eroding the components inside the box body 1. Further optionally, the box body 1 is provided with a mounting plane 12 at the opening of the threaded hole, and the sealing gasket 6 is arranged on the mounting plane 12, so that the mounting plane 12 can facilitate the installation of the sealing gasket 6 and improve the sealing ability of the sealing gasket 6 between the screw plug 5 and the box body 1.

[0036] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A gear box, characterized in that, The gearbox comprises: a box body (1) having a first mounting portion (11); a planet carrier (2) having a second mounting portion (21); a bearing carrier assembly (3) arranged between the first mounting portion (11) and the second mounting portion (21); a bearing endoscope structure arranged in the box body (1), the bearing endoscope structure comprising an endoscope channel (41) having two ends respectively communicating with an axial end surface of the bearing carrier assembly (3) and the outside of the box body (1), and at least part of the endoscope channel (41) being arranged radially inclined to the bearing carrier assembly (3).

2. The gear case of claim 1, wherein, The bearing endoscope structure comprises an endoscope tube (4) arranged in the box body (1) and a communication hole (112) arranged in the first mounting portion (11) and communicating with the bearing carrier assembly (3), the endoscope tube (4) and the communication hole (112) being in communication to form the endoscope channel (41).

3. The gear case of claim 2, wherein, The communication hole (112) extends along the axial direction of the bearing carrier assembly (3) and is arranged opposite to the bearing body (33) of the bearing carrier assembly (3).

4. The gear case of claim 2, wherein, The endoscope tube (4) is arranged radially inclined to the bearing carrier assembly (3).

5. The gear case of claim 2, wherein, The endoscope tube (4) and the box body (1) are integrally formed.

6. The gear case of claim 1, wherein, The bearing carrier assembly (3) comprises an outer ring bearing seat (31), an inner ring bearing seat (32), and a bearing body (33) arranged between the outer ring bearing seat (31) and the inner ring bearing seat (32); the outer ring bearing seat (31) is embedded in the first mounting portion (11), and the inner ring bearing seat (32) is sleeved on the second mounting portion (21).

7. The gear case of claim 6, wherein, The first mounting portion (11) is provided with a first stepped groove (111) on the side facing the second mounting portion (21), and the outer ring bearing seat (31) abuts against the first stepped groove (111); the second mounting portion (21) is provided with a second stepped groove (211) on the side facing the first mounting portion (11), and the inner ring bearing seat (32) abuts against the second stepped groove (211).

8. The gear case of claim 1, wherein, The gearbox further comprises a screw plug (5), and the endoscope channel (41) is provided with a threaded hole at the end communicating with the outside of the box body (1), and the screw plug (5) is threadedly connected to the threaded hole.

9. The gear case of claim 8, wherein, The gearbox further comprises a sealing gasket (6) arranged between the screw plug (5) and the box body (1) to seal the gap between the screw plug (5) and the box body (1).

10. The gear box of claim 9, wherein, The box body (1) is provided with a mounting plane (12) at the opening of the threaded hole, and the sealing gasket (6) is arranged on the mounting plane (12).

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