Gear box

Abstract

The utility model relates to the technical field of gear boxes, in particular to a gear box. The gearbox comprises a first box body, a second box body and a supporting assembly, the supporting assembly comprises a first support, a second support and a plurality of connecting structures, the first support is used for supporting the first box body, the second support is used for supporting the second box body, and the connecting structures are detachably arranged between the first support and the second support. The connecting structure comprises a positioning pin and a first bolt, the two ends of the positioning pin are connected with the first support and the second support respectively, and the first bolt penetrates through the positioning pin and locks the first support and the second support. Compared with the prior art, the gearbox is of a split structure, the machining difficulty can be reduced, installation, transportation and maintenance are convenient, the first support and the second support are connected through the multiple connecting structures, the overall strength of the gearbox can be guaranteed, and the supporting performance of the gearbox is improved.

Description

TECHNICAL FIELD

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

[0002] The axial length of the cutting gear box of the continuous mining machine is longer, and the weight is larger, which causes the support of the support mechanism to bear higher load, the commonly used support adopts the integral structure, the support volume is larger, the processing difficulty is higher, the supporting performance is poorer, and it is not favorable to installation transportation and later maintenance.

[0003] Therefore, a gear box is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a gear box can reduce the processing difficulty, improve the supporting performance, facilitate installation transportation and maintenance.

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

[0006] A gear box comprises:

[0007] A first box body and a second box body;

[0008] A support assembly comprising a first support, a second support and a plurality of connecting structures, the first support is used for supporting the first box body, the second support is used for supporting the second box body, a plurality of connecting structures are detachably arranged between the first support and the second support, the connecting structure comprises a positioning pin and a first bolt, the two ends of the positioning pin are connected with the first support and the second support respectively, and the first bolt is arranged in the positioning pin and locks the first support and the second support.

[0009] As a preferred technical scheme of the above-mentioned gear box, a plurality of connecting structures are arrayed, m rows are arranged along the width direction of the first support, and n columns are arranged along the height direction of the first support, and m and n are both integers greater than 1.

[0010] As a preferred technical scheme of the above-mentioned gear box, coaxial threaded holes and first positioning holes are arranged on the first support, coaxial second positioning holes and third mounting holes are arranged on the second support, the positioning pin is arranged in the first positioning hole and the second positioning hole, one end of the first bolt is connected with the threaded hole, and the other end of the first bolt is located in the third mounting hole.

[0011] As a preferred technical scheme of the above-mentioned gear box, the connecting structure further comprises a first gasket, and the first gasket is arranged between the head of the first bolt and the positioning pin.

[0012] As a kind of preferred technical scheme of the above-mentioned gear box, the connecting structure further includes a second gasket, and the second gasket is arranged between the head of the first bolt and the first gasket.

[0013] As a kind of preferred technical scheme of the above-mentioned gear box, the first support is provided with a first oil inlet passage and a first oil return passage, the first housing is provided with a second oil inlet passage and a second oil return passage, the first oil inlet passage is communicated with the second oil inlet passage, the first oil return passage is communicated with the second oil return passage, the second support is provided with a third oil inlet passage and a third oil return passage, the second housing is provided with a fourth oil inlet passage and a fourth oil return passage, the third oil inlet passage is communicated with the fourth oil inlet passage, and the third oil return passage is communicated with the fourth oil return passage.

[0014] As a kind of preferred technical scheme of the above-mentioned gear box, the gear box further includes a first cooling filter device and a second cooling filter device, two ends of the first cooling filter device are respectively communicated with the first oil inlet passage and the first oil return passage, and two ends of the second cooling filter device are respectively communicated with the third oil inlet passage and the third oil return passage.

[0015] As a kind of preferred technical scheme of the above-mentioned gear box, the first support is provided with a first high-pressure oil passage, the first high-pressure oil passage is communicated with the first housing, the second support is provided with a second high-pressure oil passage, and the second high-pressure oil passage is communicated with the second housing.

[0016] As a kind of preferred technical scheme of the above-mentioned gear box, the gear box further includes a first bearing cover, a second bearing cover, a third bearing cover and a fourth bearing cover, the first bearing cover and the second bearing cover are respectively arranged on two sides of the first housing and are supported by the first support, and the third bearing cover and the fourth bearing cover are respectively arranged on two sides of the second housing and are supported by the second support.

[0017] As a kind of preferred technical scheme of the above-mentioned gear box, the gear box further includes a plurality of anti-collision structures, and the outer surfaces of the first housing and the second housing are provided with anti-collision structures.

[0018] The utility model has the advantages of:

[0019] This utility model provides a gearbox. The gearbox includes a first housing, a second housing, and a support assembly. The support assembly includes a first bracket, a second bracket, and several connecting structures. The first bracket supports the first housing, the second bracket supports the second housing, and the several connecting structures are detachably disposed between the first and second brackets. Each connecting structure includes a locating pin and a first bolt. The two ends of the locating pin are respectively connected to the first and second brackets, and the first bolt passes through the locating pin and locks the first and second brackets. Compared with the prior art, this gearbox adopts a split structure, which reduces the processing difficulty and facilitates installation, transportation, and maintenance. The first and second brackets are connected by several connecting structures, which can ensure the overall strength of the gearbox and improve its support performance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0021] Figure 1 This is a first structural schematic diagram of the gearbox provided in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the second structure of the gearbox provided in an embodiment of the present utility model;

[0023] Figure 3 A schematic diagram of the third structure of the gearbox provided in an embodiment of this utility model;

[0024] Figure 4 A schematic diagram of the fourth structure of the gearbox provided in an embodiment of this utility model;

[0025] Figure 5 A fifth structural schematic diagram of the gearbox provided in an embodiment of this utility model;

[0026] Figure 6 for Figure 5 A magnified view of the Y region.

[0027] In the picture:

[0028] 1. first support; 2. second support; 3. first case; 4. second case; 5. first bearing cover; 6. fourth bearing cover; 7. first output planet carrier; 8. third output planet carrier; 9. second bolt; 10. sixth bolt; 11. second bearing cover; 12. third bearing cover; 13. third bolt; 14. seventh bolt; 15. fourth bolt; 16. fifth bolt; 17. eighth bolt; 18. ninth bolt; 19. positioning pin; 20. first gasket; 21. second gasket; 22. first bolt; 27. first mounting hole; 28. second mounting hole; 29. first oil inlet passage; 30. first oil return passage; 31. third oil inlet passage; 32. third oil return passage; 33. first high-pressure oil passage; 34. third high-pressure oil passage; 35. third high-pressure oil passage; 36. fourth high-pressure oil passage; 37. fourth oil inlet passage; 38. fourth oil return passage; 39. second oil inlet passage; 40. second oil return passage; 41. second output planet carrier; 42. fourth output planet carrier. DETAILED DESCRIPTION

[0029] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0030] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature in the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature in the second feature include the vertical and inclined upper of the first feature in the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature in the second feature include the vertical and inclined lower of the first feature in the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0032] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0033] As shown in Figures 1 to 6 The utility model provides a gear box, gear box includes first box body 3, second box body 4 and support assembly.

[0034] Specifically, the support assembly includes a first support 1, a second support 2 and a plurality of connecting structures, the first support 1 is used for supporting the first box body 3, the second support 2 is used for supporting the second box body 4, the plurality of connecting structures are detachably arranged between the first support 1 and the second support 2, the connecting structure includes a positioning pin 19 and a first bolt 22, both ends of the positioning pin 19 are connected with the first support 1 and the second support 2 respectively, the first bolt 22 is arranged in the positioning pin 19 and locks the first support 1 and the second support 2. Compared with the prior art, the gear box adopts a split structure, which can reduce the processing difficulty, facilitate installation, transportation and maintenance, the first support 1 and the second support 2 are connected by the plurality of connecting structures, which can ensure the overall strength of the gear box and improve the support performance of the gear box.

[0035] Optionally, in the present embodiment, the plurality of connecting structures are arrayed, m rows are arranged along the width direction of the first support 1, and n columns are arranged along the height direction of the first support 1, m and n are both integers greater than 1, wherein m=2, n=3. Of course, in some other embodiments, the number and arrangement of the connecting structures are determined according to the actual situation, which will not be described here.

[0036] Optionally, the first support 1 is provided with a coaxial threaded hole and a first positioning hole, the second support 2 is provided with a coaxial second positioning hole and a third mounting hole, the positioning pin 19 is arranged in the first positioning hole and the second positioning hole, one end of the first bolt 22 is connected with the threaded hole, and the other end of the first bolt 22 is located in the third mounting hole. Specifically, the diameter of the threaded hole is smaller than the diameter of the first positioning hole, a first stepped surface is formed between the threaded hole and the first positioning hole, the diameter of the second positioning hole is smaller than the diameter of the third mounting hole, a second stepped surface is formed between the second positioning hole and the third mounting hole, the diameter of the first positioning hole is the same as the diameter of the second positioning hole, the positioning pin 19 is a hollow structure, the outer diameter of the positioning pin 19 is the same as the diameter of the first positioning hole, one end of the positioning pin 19 is arranged in the first positioning hole and abuts against the first stepped surface, the other end of the positioning pin 19 is arranged in the second positioning hole, the circumferential positioning of the first support 1 and the second support 2 can be realized, one end of the first bolt 22 is screwed with the hole wall of the threaded hole through the positioning pin 19, the other end of the first bolt 22 is arranged in the third mounting hole and abuts against the end surface of the positioning pin 19, the connection strength between the first support 1 and the second support 2 can be improved, and meanwhile, the first bolt 22 is prevented from being exposed.

[0037] Optionally, the connecting structure further comprises a first gasket 20, the first gasket 20 is arranged between the head of the first bolt 22 and the positioning pin 19, the first gasket 20 is arranged in the fourth through hole, and the first gasket 20 abuts against the second stepped surface and the end surface of the positioning pin 19 at the same time, the contact area with the first bolt 22 can be increased, and the stability of the connection between the first support 1 and the second support 2 can be improved. Further, the first gasket 20 is a round gasket.

[0038] Optionally, the connecting structure further comprises a second gasket 21, the second gasket 21 is arranged between the head of the first bolt 22 and the first gasket 20, and the loosening of the first bolt 22 can be prevented.

[0039] Optionally, the bottom wall of the first support 1 is provided with a first oil inlet passage 29 and a first oil return passage 30, the bottom wall of the first box body 3 is provided with a second oil inlet passage 39 and a second oil return passage 40, the first oil inlet passage 29 communicates with the second oil inlet passage 39, and the first oil return passage 30 communicates with the second oil return passage 40, so as to realize the lubrication of the first gear structure in the first box body 3; the bottom wall of the second support 2 is provided with a third oil inlet passage 31 and a third oil return passage 32, the bottom wall of the second box body 4 is provided with a fourth oil inlet passage 37 and a fourth oil return passage 38, the third oil inlet passage 31 communicates with the fourth oil inlet passage 37, and the third oil return passage 32 communicates with the fourth oil return passage 38, so as to realize the lubrication of the second gear structure in the second box body 4.

[0040] Further, the gear box further comprises a first cooling and filtering device and a second cooling and filtering device, two ends of the first cooling and filtering device are communicated with the first oil inlet passage 29 and the first oil return passage 30 respectively, so as to realize cooling and cleaning of the lubricating oil; two ends of the second cooling and filtering device are communicated with the third oil inlet passage 31 and the third oil return passage 32 respectively, so as to realize cooling and cleaning of the lubricating oil.

[0041] Optionally, the first support 1 is provided with a first high-pressure oil passage 33, the first high-pressure oil passage 33 is communicated with the first box body 3, so as to realize transmission of high-pressure oil. Further, the first support 1 is further provided with a third high-pressure oil passage 35, the third high-pressure oil passage 35 is communicated with the first box body 3, so as to improve transmission efficiency; the second support 2 is provided with a second high-pressure oil passage, the second high-pressure oil passage is communicated with the second box body 4, so as to realize transmission of high-pressure oil. Further, the second support 2 is further provided with a fourth high-pressure oil passage 36, the fourth high-pressure oil passage 36 is communicated with the second box body 4, so as to improve transmission efficiency.

[0042] Optionally, the gear box further comprises a first bearing cover 5, a second bearing cover 11, a third bearing cover 12 and a fourth bearing cover 6, the first bearing cover 5 and the second bearing cover 11 are respectively arranged on two sides of the first box body 3 and are supported by the first support 1, the third bearing cover 12 and the fourth bearing cover 6 are respectively arranged on two sides of the second box body 4 and are supported by the second support 2, so as to prevent the bearing from being exposed and avoid damage to the bearing. Specifically, the first support 1 comprises a first supporting part, a second supporting part and a third supporting part arranged at intervals, the first supporting part is used for supporting the first bearing cover 5, the second supporting part is used for supporting the first box body 3, and the third supporting part is used for supporting the second bearing cover 11; the second support 1 comprises a fourth supporting part, a fifth supporting part and a sixth supporting part arranged at intervals, the third supporting part is detachably connected with the fourth supporting part, the third supporting part is used for supporting the third bearing cover 12, the fifth supporting part is used for supporting the second box body 4, and the sixth supporting part is used for supporting the fourth bearing cover 6.

[0043] Optionally, the gear box further comprises a plurality of anti-collision structures, the outer surfaces of the first box body 3 and the second box body 4 are provided with the anti-collision structures. Specifically, the two ends of the first support 1, the two ends of the second support 2, the first box body 3 and the second box body 4 are all provided with the anti-collision structures, which are used for protecting the first bearing cover 5, the second bearing cover 11, the third bearing cover 12, the fourth bearing cover 6, the first box body 3 and the second box body 4, and preventing them from being collided by large ore.

[0044] Optionally, the first support 1 is provided with first mounting holes 27, and the second support 2 is provided with second mounting holes 28, so as to realize the connection with the main structure of the continuous miner.

[0045] Optionally, the first support 1 is connected with the first bearing cover 5 through the second bolt 9, and supports the first output planetary carrier 7; the first support 1 is connected with the second bearing cover 11 through the third bolt 13, and supports the second output planetary carrier 41; the first support 1 is connected with the first box body 3 through the fourth bolt 15 and the fifth bolt 16; the second support 2 is connected with the third bearing cover 12 through the sixth bolt 10, and supports the third output planetary carrier 8; the second support 2 is connected with the fourth bearing cover 6 through the seventh bolt 14, and supports the fourth output planetary carrier 42; the second support 2 is connected with the second box body 4 through the eighth bolt 17 and the ninth bolt 18. In the embodiment, the number of the fourth bolt 15 and the number of the eighth bolt 17 are both twenty, and the number of the fifth bolt 16 and the number of the ninth bolt 18 are both four, of course, in other embodiments, the number of the fourth bolt 15, the number of the eighth bolt 17, the number of the fifth bolt 16 and the number of the ninth bolt 18 are determined according to actual conditions, and details are not repeated here.

[0046] In addition, the above are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the appended claims.

Claims

1. A gear box, characterized in that, The gearbox comprises: a first box body (3) and a second box body (4); a support assembly comprising a first support (1) for supporting the first box body (3), a second support (2) for supporting the second box body (4), and a plurality of connecting structures arranged between the first support (1) and the second support (2), wherein the connecting structures comprise a positioning pin (19) and a first bolt (22), the two ends of the positioning pin (19) are connected to the first support (1) and the second support (2) respectively, and the first bolt (22) is arranged through the positioning pin (19) and locks the first support (1) and the second support (2).

2. A gearbox as claimed in claim 1, characterised in that The plurality of connecting structures are arranged in an array, m rows along the width direction of the first support (1), and n columns along the height direction of the first support (1), wherein m and n are both integers greater than 1.

3. A gearbox as claimed in claim 1, characterised in that The first support (1) is provided with a coaxial threaded hole and a first positioning hole, the second support (2) is provided with a coaxial second positioning hole and a third mounting hole, the positioning pin (19) is arranged through the first positioning hole and the second positioning hole, one end of the first bolt (22) is connected to the threaded hole, and the other end of the first bolt (22) is located in the third mounting hole.

4. A gearbox as claimed in claim 1, characterised in that The connecting structure further comprises a first gasket (20) arranged between the head of the first bolt (22) and the positioning pin (19).

5. A gearbox according to claim 4, characterised in that The connecting structure further comprises a second gasket (21) arranged between the head of the first bolt (22) and the first gasket (20).

6. A gearbox as claimed in claim 1, characterised in that The first support (1) is provided with a first oil inlet passage (29) and a first oil return passage (30), the first box body (3) is provided with a second oil inlet passage (39) and a second oil return passage (40), the first oil inlet passage (29) is in communication with the second oil inlet passage (39), the first oil return passage (30) is in communication with the second oil return passage (40), the second support (2) is provided with a third oil inlet passage (31) and a third oil return passage (32), and the second box body (4) is provided with a fourth oil inlet passage (37) and a fourth oil return passage (38), the third oil inlet passage (31) is in communication with the fourth oil inlet passage (37), and the third oil return passage (32) is in communication with the fourth oil return passage (38).

7. A gearbox according to claim 6, characterised in that The gearbox further comprises a first cooling and filtering device and a second cooling and filtering device, the two ends of the first cooling and filtering device are in communication with the first oil inlet passage (29) and the first oil return passage (30) respectively, and the two ends of the second cooling and filtering device are in communication with the third oil inlet passage (31) and the third oil return passage (32) respectively.

8. A gearbox according to claim 6, characterised in that The first support (1) is provided with a first high-pressure oil passage (33) in communication with the first box body (3), and the second support (2) is provided with a second high-pressure oil passage in communication with the second box body (4).

9. A gearbox according to any one of claims 1-8, characterized in that The gear box further comprises a first bearing cover (5), a second bearing cover (11), a third bearing cover (12) and a fourth bearing cover (6), the first bearing cover (5) and the second bearing cover (11) are respectively arranged on the two sides of the first box body (3) and are supported by the first support (1), and the third bearing cover (12) and the fourth bearing cover (6) are respectively arranged on the two sides of the second box body (4) and are supported by the second support (2).

10. A gearbox according to any one of claims 1-8, characterized in that The gear box further comprises a plurality of anti-collision structures, and the outer surfaces of the first box body (3) and the second box body (4) are provided with anti-collision structures.

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