Linear transmission type speed reducer

Abstract

The utility model discloses a linear transmission type speed reducer which comprises a lower side box body, an upper side box body is arranged at the upper end of the lower side box body, and the linear transmission type speed reducer is characterized in that a first rotating shaft is arranged between the lower side box body and the upper side box body, a second rotating shaft is arranged on one side of the first rotating shaft, and a fourth rotating shaft is arranged on the outer side of the second rotating shaft; a first bevel gear is arranged on one side of the first rotating shaft, a second bevel gear is arranged on one side of the second rotating shaft, a third rotating shaft is arranged on one side of the second rotating shaft, the third rotating shaft and the first rotating shaft are located on the same straight line, and transmission assemblies for conducting power connection on the first rotating shaft, the third rotating shaft and the second rotating shaft are arranged in the upper side box body and the lower side box body. And a second rotating shaft penetrates through a transmission hole, a second bevel gear is kept in power connection with a third bevel gear, primary transmission is conducted through the first rotating shaft and a first bevel gear after the first rotating shaft is connected with power of a motor, and the first bevel gear is meshed with the second bevel gear.

Description

Technical Field

[0001] The utility model relates to the technical field of reducer equipment, in particular to a linear transmission type reducer. Background Art

[0002] When the reducer is in linear transmission, the output end and the input end are located on the same straight line to realize the function of linear transmission. Then a gear train is set between the input shaft and the output shaft inside the reducer. By setting multiple gears in the gear train and setting the gears to different specifications, a variable transmission ratio can be realized, and the input shaft and output shaft of the reducer can be set to the same straight line. The disadvantage of existing linear reducers is that the gears and shafts are difficult to install and maintain. Most of them adopt an integrated setting. After damage, the shaft teeth can only be completely replaced, which is very inconvenient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a linear transmission type reducer, which can solve the above-mentioned problems in the existing technology.

[0004] The utility model is realized through the following technical scheme: a linear transmission reducer of the utility model comprises a lower case body, an upper case body is arranged on the upper end of the lower case body, and is characterized in that a first rotating shaft is arranged between the lower case body and the upper case body, a second rotating shaft is arranged on one side of the first rotating shaft, a fourth rotating shaft is arranged on the outer side of the second rotating shaft, a third rotating shaft is arranged on one side of the second rotating shaft, the third rotating shaft and the first rotating shaft are located on the same straight line, a transmission assembly for dynamically connecting the first rotating shaft, the third rotating shaft and the second rotating shaft is arranged in the upper case body and the lower case body, and the first rotating shaft, the fourth rotating shaft and the third rotating shaft are arranged between the lower case body and the upper case body through a rotating assembly.

[0005] A further technical solution is that the transmission assembly includes a first bevel gear arranged on one side of the first rotating shaft, a second bevel gear is meshed with one side of the first bevel gear, the second bevel gear is connected and fixed to the second rotating shaft, a third bevel gear is arranged on one side of the fourth rotating shaft, a fourth bevel gear is meshed with one side of the third bevel gear, and the fourth bevel gear is fixed to the third rotating shaft.

[0006] A further technical solution is that transmission holes are provided in the fourth rotating shaft and the third bevel gear, a transmission key is provided on the outer surface of the second rotating shaft, the second rotating shaft is inserted into the transmission hole, the transmission key is engaged with the keyway in the transmission hole, an end cover is provided at the end of the second rotating shaft, and the end cover is fixed to the end of the fourth rotating shaft.

[0007] According to a further technical solution, the second bevel gear is fixedly connected to the second rotating shaft.

[0008] According to a further technical solution, the rotating assembly includes a plurality of bearing slots arranged on the end surfaces of the lower box body and the upper box body.

[0009] According to a further technical solution, a first bearing, a second bearing and a third bearing are clamped in the bearing slot, the first rotating shaft is rotatably connected to the first bearing, the fourth rotating shaft is rotatably connected to the second bearing, and the third rotating shaft is rotatably connected to the third bearing.

[0010] According to a further technical solution, a first boss is disposed on the outer surface of the first rotating shaft, the first boss abuts against the inner ring of the first bearing, and the first boss is disposed on one side of the first bevel gear.

[0011] According to a further technical solution, a second boss and a first annular groove are provided on the outer surface of the fourth rotating shaft, the second boss abuts against one side of the inner ring of the second bearing, a first clamp is provided in the first annular groove, and the first clamp abuts against one side of the inner ring of the second bearing.

[0012] According to a further technical solution, a third boss is provided on the outer surface of the third rotating shaft, the third boss abuts against one side of the inner ring of the third bearing, a second annular groove is provided on the outer side of the third rotating shaft, a second clamp is provided in the second annular groove, and the second clamp abuts against one side of the inner ring of the third bearing.

[0013] The beneficial effects of the utility model are:

[0014] 1. By integrally arranging the third bevel gear, the second boss and the fourth rotating shaft to form a separate transmission component, and then integrally arranging the end cover and the second rotating shaft to form a separate transmission component, the second bevel gear and the second rotating shaft are arranged to be detachable, so that the three can be disassembled and installed, which is convenient for replacement.

[0015] 2. Since the first bevel gear, the first boss and the first rotating shaft are integrally arranged, and the fourth bevel gear, the third boss and the third rotating shaft are integrally arranged, after the two sets of structures are installed on the lower box body, the third bevel gear, the second boss and the fourth rotating shaft as well as the end cover, the second rotating shaft and other structures are installed, which will facilitate the installation and meshing of the second bevel gear with the first bevel gear, and the installation and meshing of the third bevel gear with the fourth bevel gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail by the following specific embodiments and drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of a linear transmission reducer of the utility model;

[0018] Figure 2 for Figure 1 Structural diagram of the other side of the middle reducer;

[0019] Figure 3 for Figure 2 Schematic diagram of the internal structure of the medium reducer;

[0020] Figure 4 for Figure 3 Installation diagram of the medium reducer;

[0021] In the figure, the lower housing 11, the first rotating shaft 12, the end cover 13, the upper housing 14, the third rotating shaft 15, the fourth bevel gear 21, the third bearing 22, the third bevel gear 23, the second bearing 24, the transmission hole 25, the second bevel gear 26, the first bearing 27, the bearing slot 29, the first boss 31, the first bevel gear 32, the third boss 41, the second annular groove 42, the first annular groove 43, the fourth rotating shaft 44, the second boss 45, the transmission key 47, and the second rotating shaft 48. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1 The up, down, left, right, front and back directions of the projection relationship are consistent. A linear transmission reducer of the utility model includes a lower case body 11, an upper case body 14 is arranged on the upper end of the lower case body 11, and the lower case body 11 and the upper case body 14 can be disassembled and separated. A first rotating shaft 12 is arranged between the lower case body 11 and the upper case body 14, a second rotating shaft 48 is arranged on one side of the first rotating shaft 12, a fourth rotating shaft 44 is arranged on the outer side of the second rotating shaft 48, and a third rotating shaft 15 is arranged on one side of the second rotating shaft 48, and the third rotating shaft 15 is located on the same straight line as the first rotating shaft 12, and a transmission assembly for dynamically connecting the first rotating shaft 12, the third rotating shaft 15 and the second rotating shaft 48 is arranged in the upper case body 14 and the lower case body 11, and the first rotating shaft 12, the fourth rotating shaft 44 and the third rotating shaft 15 are arranged between the lower case body 11 and the upper case body 14 through a rotating assembly.

[0023] Advantageously, the transmission assembly includes a first bevel gear 32 disposed on one side of the first rotating shaft 12, a second bevel gear 26 is meshedly disposed on one side of the first bevel gear 32, the second bevel gear 26 is detachably connected and fixed to the second rotating shaft 48, a third bevel gear 23 is disposed on one side of the fourth rotating shaft 44, a fourth bevel gear 21 is meshedly disposed on one side of the third bevel gear 23, and the fourth bevel gear 21 is fixed to the third rotating shaft 15.

[0024] Advantageously, a transmission hole 25 is provided in the fourth rotating shaft 44 and the third bevel gear 23, a transmission key 47 is provided on the outer surface of the second rotating shaft 48, the second rotating shaft 48 is inserted into the transmission hole 25, the transmission key 47 is engaged with the keyway in the transmission hole 25, an end cover 13 is provided at the end of the second rotating shaft 48, and the end cover 13 is fixed to the end of the fourth rotating shaft 44, and the fixing method can be bolted.

[0025] Advantageously, the second bevel gear 26 is detachably connected and fixed to the second rotating shaft 48, and may be fixed by bolts.

[0026] Advantageously, the rotating assembly includes a plurality of bearing slots 29 disposed on the end surfaces of the lower housing 11 and the upper housing 14 , and the bearing slots 29 between the lower housing 11 and the upper housing 14 form a complete circle.

[0027] Advantageously, the first bearing 27, the second bearing 24 and the third bearing 22 are clamped in the bearing slot 29, the first rotating shaft 12 is rotatably connected to the first bearing 27, the fourth rotating shaft 44 is rotatably connected to the second bearing 24, and the third rotating shaft 15 is rotatably connected to the third bearing 22.

[0028] Advantageously, a first boss 31 is disposed on the outer surface of the first rotating shaft 12 , the first boss 31 abuts against the inner ring of the first bearing 27 , and the first boss 31 is disposed on one side of the first bevel gear 32 .

[0029] Advantageously, the outer surface of the fourth rotating shaft 44 is provided with a second boss 45 and a first annular groove 43 , the second boss 45 abuts against one side of the inner ring of the second bearing 24 , and a first clamp is provided in the first annular groove 43 , the first clamp abuts against one side of the inner ring of the second bearing 24 .

[0030] Advantageously, a third boss 41 is provided on the outer surface of the third rotating shaft 15, and the third boss 41 abuts against one side of the inner ring of the third bearing 22. A second annular groove 42 is provided on the outer side of the third rotating shaft 15, and a second clamp is provided in the second annular groove 42, and the second clamp abuts against one side of the inner ring of the third bearing 22.

[0031] The third bevel gear 23 and the fourth rotating shaft 44 are integrated, and the second rotating shaft 48 passes through the transmission hole 25 to maintain the second bevel gear 26 and the third bevel gear 23 power connection. After the first rotating shaft 12 is connected to the power of the motor, the first rotating shaft 12 and the first bevel gear 32 are used for preliminary transmission. After the first bevel gear 32 is meshed with the second bevel gear 26, the second rotating shaft 48, the fourth rotating shaft 44 and the third bevel gear 23 are rotated. After the third bevel gear 23 is meshed with the fourth bevel gear 21, the fourth bevel gear 21 drives the third rotating shaft 15 to rotate. Since the third rotating shaft 15 and the first rotating shaft 12 are located on the same straight line, the function of linear reduction transmission can be realized.

[0032] When installing the second rotating shaft 48 and the fourth rotating shaft 44, first place the second bearing 24 in the bearing slot 29, then install the fourth rotating shaft 44 and the third bevel gear 23 in the second bearing 24, then pass the second rotating shaft 48 through the transmission hole 25, and engage with the keyway in the transmission hole 25 through the transmission key 47, install bolts in the end cover 13 to connect and fix with the fourth rotating shaft 44, and then install the second bevel gear 26 on the end of the second rotating shaft 48.

[0033] Next, the first bevel gear 32 is meshed and arranged on one side of the second bevel gear 26, and the fourth bevel gear 21 is meshed and arranged on one side of the third bevel gear 23, so that the transmission structure of the reducer can be formed.

[0034] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A linear transmission reducer, comprising a lower case (11), an upper case (14) being arranged at the upper end of the lower case (11), characterized in that: A first rotating shaft (12) is arranged between the lower case (11) and the upper case (14), a second rotating shaft (48) is arranged on one side of the first rotating shaft (12), a fourth rotating shaft (44) is arranged on the outer side of the second rotating shaft (48), a third rotating shaft (15) is arranged on one side of the second rotating shaft (48), the third rotating shaft (15) and the first rotating shaft (12) are located on the same straight line, a transmission assembly for connecting the first rotating shaft (12), the third rotating shaft (15) and the second rotating shaft (48) by power is arranged in the upper case (14) and the lower case (11), and the first rotating shaft (12), the fourth rotating shaft (44) and the third rotating shaft (15) are arranged between the lower case (11) and the upper case (14) through a rotating assembly.

2. A linear transmission reducer according to claim 1, characterized in that: The transmission assembly comprises a first bevel gear (32) arranged on one side of the first rotating shaft (12); a second bevel gear (26) is meshedly arranged on one side of the first rotating shaft (32); the second bevel gear (26) is connected and fixed to the second rotating shaft (48); a third bevel gear (23) is arranged on one side of the fourth rotating shaft (44); a fourth bevel gear (21) is meshedly arranged on one side of the third bevel gear (23); and the fourth bevel gear (21) is fixed to the third rotating shaft (15).

3. A linear transmission reducer according to claim 2, characterized in that: A transmission hole (25) is provided in the fourth rotating shaft (44) and the third bevel gear (23); a transmission key (47) is provided on the outer surface of the second rotating shaft (48); the second rotating shaft (48) is inserted into the transmission hole (25); the transmission key (47) is engaged with a keyway in the transmission hole (25); an end cover (13) is provided at the end of the second rotating shaft (48); and the end cover (13) is fixed to the end of the fourth rotating shaft (44).

4. A linear transmission reducer according to claim 2, characterized in that: The rotating assembly comprises a plurality of bearing slots (29) arranged on the end surfaces of the lower housing (11) and the upper housing (14).

5. A linear transmission reducer according to claim 4, characterized in that: A first bearing (27), a second bearing (24) and a third bearing (22) are mounted in the bearing slot (29); the first rotating shaft (12) is rotatably connected to the first bearing (27); the fourth rotating shaft (44) is rotatably connected to the second bearing (24); and the third rotating shaft (15) is rotatably connected to the third bearing (22).

6. A linear transmission reducer according to claim 5, characterized in that: A first boss (31) is provided on the outer surface of the first rotating shaft (12), the first boss (31) abuts against the inner ring of the first bearing (27), and the first boss (31) is arranged on one side of the first bevel gear (32).

7. A linear transmission reducer according to claim 6, characterized in that: The outer surface of the fourth rotating shaft (44) is provided with a second boss (45) and a first annular groove (43), the second boss (45) abuts against one side of the inner ring of the second bearing (24), and the first clamp is provided in the first annular groove (43), and the first clamp abuts against one side of the inner ring of the second bearing (24).

8. A linear transmission reducer according to claim 7, characterized in that: A third boss (41) is arranged on the outer surface of the third rotating shaft (15), and the third boss (41) abuts against one side of the inner ring of the third bearing (22). A second annular groove (42) is arranged on the outer side of the third rotating shaft (15), and a second clamp is arranged in the second annular groove (42), and the second clamp abuts against one side of the inner ring of the third bearing (22).

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