阅读说明：本技术 一种机动车高合差速器 (High-closing differential mechanism of motor vehicle ) 是由 欧书鸿 徐云涛 于 2020-07-13 设计创作，主要内容包括：本发明涉及差速器领域,具体的说是一种机动车高合差速器,包括差速器机构、壳体连接机构、第一限位机构、第二限位机构、端盖机构、连接机构、倒圆角,所述差速器机构包括传动轴、输出轴、从动齿轮、锥齿轮、行星齿轮和主动齿轮,所述主动齿轮固定连接于传动轴的一端上并与从动齿轮啮合,两个所述输出轴对称设置,且两个所述锥齿轮分别固定连接于两个输出轴相对的一端上,两个所述行星齿轮对称转动连接于从动齿轮中并与两个锥齿轮啮合设置,所述壳体连接机构包裹在差速器机构外。本发明提供的机动车高合差速器具有差速器外壳可拆卸,便于对损坏的零件进行取出更换,降低了维修成本的优点。(The invention relates to the field of differentials, in particular to a high-clutch differential of a motor vehicle, which comprises a differential mechanism, a shell connecting mechanism, a first limiting mechanism, a second limiting mechanism, an end cover mechanism, a connecting mechanism and a fillet, wherein the differential mechanism comprises a transmission shaft, output shafts, driven gears, bevel gears, planetary gears and a driving gear, the driving gear is fixedly connected to one end of the transmission shaft and meshed with the driven gears, the two output shafts are symmetrically arranged, the two bevel gears are respectively and fixedly connected to the opposite ends of the two output shafts, the two planetary gears are symmetrically and rotatably connected into the driven gears and meshed with the two bevel gears, and the shell connecting mechanism is wrapped outside the differential mechanism. The motor vehicle high-speed differential provided by the invention has the advantages that the differential shell is detachable, the damaged parts are convenient to take out and replace, and the maintenance cost is reduced.)

1. A motor vehicle high-close differential is characterized by comprising a differential mechanism (1), a shell connecting mechanism (2), a first limiting mechanism (3), a second limiting mechanism (4), an end cover mechanism (5) and a connecting mechanism (6), the differential mechanism (1) comprises a transmission shaft (11), an output shaft (12), a driven gear (13), a bevel gear (14), a planetary gear (15) and a driving gear (16), the driving gear (16) is fixedly connected to one end of the transmission shaft (11) and meshed with the driven gear (13), the two output shafts (12) are symmetrically arranged, the two bevel gears (14) are respectively and fixedly connected to the opposite ends of the two output shafts (12), and the two planetary gears (15) are symmetrically and rotatably connected in the driven gear (13) and meshed with the two bevel gears (14); the shell connecting mechanism (2) is wrapped outside the differential mechanism (1), the shell connecting mechanism (2) comprises an upper shell (21), a lower shell (22), a first fixing block (23), a second fixing block (24), a fastening bolt (25) and a thread groove (26), the upper shell (21) and the lower shell (22) are arranged in an up-and-down symmetrical manner, and the differential mechanism (1) is located between the upper case (21) and the lower case (22), the first fixing block (23) is fixedly connected to the side wall of the upper shell (21), the second fixing block (24) is fixedly connected to the side wall of the lower shell (22), the fastening bolt (25) vertically penetrates through the first fixing block (23) and is in threaded connection with the first fixing block, the thread groove (26) is formed in the second fixing block (24), the lower end of the fastening bolt (25) is inserted into the thread groove (26) and is in threaded connection with the thread groove; the first limiting mechanism (3) is fixedly sleeved on the transmission shaft (11) and the output shaft (12); the second limiting mechanism (4) is fixedly sleeved on the transmission shaft (11) and the output shaft (12); the end cover mechanism (5) is fixedly connected to the upper shell (21) and the lower shell (22); the connecting mechanism (6) is fixedly connected to one end of the transmission shaft (11) and one end of the output shaft (12).

2. The motor vehicle high-speed differential according to claim 1, characterized in that the first limiting mechanism (3) comprises bearings (31) and annular rotary grooves (32), the three bearings (31) are respectively sleeved on the transmission shaft (11) and the two output shafts (12), the annular rotary grooves (32) are arranged in the upper shell (21) and the lower shell (22), and the bearings (31) are rotatably connected in the annular rotary grooves (32).

3. The motor vehicle high-speed differential according to claim 2, characterized in that the second limiting mechanism (4) comprises a first annular fixing block (41) and a second annular fixing block (42), three sets of the first annular fixing block (41) and the second annular fixing block (42) are respectively and fixedly sleeved on the transmission shaft (11) and the two output shafts (12), and the first annular fixing block (41) and the second annular fixing block (42) are respectively located at two sides of the bearing (31) and are arranged close to the bearing (31).

4. The automotive high-speed differential mechanism according to claim 1 is characterized in that the end cover mechanism (5) comprises end covers (51) and connecting bolts (52), the three end covers (51) are respectively sleeved on three ends of the upper shell (21) and the lower shell (22) close to the transmission shaft (11) and the two output shafts (12), and the end covers (51) are fixedly connected to the upper shell (21) and the lower shell (22) through the connecting bolts (52).

5. The motor vehicle high-speed differential according to claim 1, characterized in that the connecting mechanism (6) comprises fixing blocks (61), connecting blocks (62) and connecting through grooves (63), three fixing blocks (61) are respectively fixedly connected to the transmission shaft (11) and one end of the two output shafts (12) outside the upper casing (21) and the lower casing (22), the connecting blocks (62) are fixedly connected to the fixing blocks (61), and the connecting through grooves (63) are vertically arranged in the connecting blocks (62).

6. The motor vehicle high-speed differential according to claim 1, characterized in that the corners of the upper casing (21) and the lower casing (22) are provided with fillets (7), and a sealing gasket is arranged between the upper casing (21) and the lower casing (22).

Technical Field

The invention relates to the field of differentials, in particular to a high-closing differential for a motor vehicle.

Background

The ordinary differential consists of planetary gears, a planetary gear carrier (differential case), a half axle gear and other parts. The power of the engine enters the differential mechanism through the transmission shaft to directly drive the planet wheel carrier, and then the planet wheel drives the left half shaft and the right half shaft to respectively drive the left wheel and the right wheel. There are many types of differentials, most of which are used in motor vehicles.

In the process of disassembling and assembling waste and old recovered differentials, most of the existing automotive high-voltage differential shells are directly welded to be dead in the differential assembling process, and when the differential parts are damaged, the whole differential needs to be replaced, so that the cost is high. Therefore, there is a need to provide a new high-speed differential for motor vehicles to solve the above technical problems.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a high-speed differential of a motor vehicle.

The technical scheme adopted by the invention for solving the technical problems is as follows: an automotive high-speed differential, comprising: the differential mechanism comprises a transmission shaft, output shafts, driven gears, bevel gears, planetary gears and a driving gear, wherein the driving gear is fixedly connected to one end of the transmission shaft and meshed with the driven gears; the shell connecting mechanism is wrapped outside the differential mechanism and comprises an upper shell, a lower shell, a first fixing block, a second fixing block, a fastening bolt and a threaded groove, the upper shell and the lower shell are symmetrically arranged up and down, the differential mechanism is positioned between the upper shell and the lower shell, the first fixing block is fixedly connected to the side wall of the upper shell, the second fixing block is fixedly connected to the side wall of the lower shell, the fastening bolt vertically penetrates through the first fixing block and is in threaded connection with the first fixing block, the threaded groove is formed in the second fixing block, and the lower end of the fastening bolt is inserted into the threaded groove and is in threaded connection with the threaded groove; the first limiting mechanism is fixedly sleeved on the transmission shaft and the output shaft; the second limiting mechanism is fixedly sleeved on the transmission shaft and the output shaft; the end cover mechanism is fixedly connected to the upper shell and the lower shell; and the connecting mechanism is fixedly connected to one end of the transmission shaft and one end of the output shaft.

Preferably, the first limiting mechanism comprises a bearing and an annular rotating groove, the three bearings are respectively sleeved on the transmission shaft and the two output shafts, the annular rotating groove is arranged in the upper shell and the lower shell, and the bearing is rotatably connected in the annular rotating groove.

Preferably, the second limiting mechanism comprises a first annular fixing block and a second annular fixing block, the first annular fixing block and the second annular fixing block are respectively and fixedly sleeved on the transmission shaft and the two output shafts, and the first annular fixing block and the second annular fixing block are respectively located on two sides of the bearing and are arranged close to the bearing.

Preferably, the end cover mechanism comprises end covers and connecting bolts, the three end covers are respectively sleeved on the three ends of the upper shell and the lower shell close to the transmission shaft and the two output shafts, and the end covers are fixedly connected to the upper shell and the lower shell through the connecting bolts.

Preferably, coupling mechanism includes fixed block, connecting block and connects and lead to the groove, and is three the fixed block is fixed connection respectively and is served in the outer one of casing and inferior valve body in transmission shaft and two output shafts, connecting block fixed connection is on the fixed block, just connect to lead to the groove and vertically set up in the connecting block, the fillet has been seted up to the edge of going up casing and casing down. Preferably, a sealing gasket is arranged between the upper shell and the lower shell.

Compared with the related art, the high-closing differential mechanism of the motor vehicle has the following beneficial effects:

(1) according to the motor vehicle high-clutch differential, in the process of assembling the differential, the differential mechanism is placed in the lower shell, the upper shell is placed above the lower shell, the fastening bolt is screwed to be screwed into the threaded groove, and the first fixing block on the upper shell and the second fixing block on the lower shell are fixedly connected, so that the upper shell and the lower shell are fixedly connected, and the differential mechanism is wrapped and connected for limitation.

(2) According to the motor vehicle high-clutch differential provided by the invention, the end cover is fixed on the three-end outer shell close to the transmission shaft and the two output shafts through the connectable bolts, so that sundries are prevented from entering the inner part of the outer shell, and meanwhile, the upper shell and the lower shell are connected, and the stability of the outer shell is improved.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a high-speed differential of a motor vehicle according to the present invention;

FIG. 2 is a schematic top cross-sectional view of the structure of FIG. 1;

fig. 3 is a schematic structural view of a portion a shown in fig. 2.

Reference numbers in the figures: 1. differential mechanism, 11, transmission shaft, 12, output shaft, 13, driven gear, 14, bevel gear, 15, planetary gear, 16, driving gear, 2, shell connecting mechanism, 21, upper shell, 22, lower shell, 23, first fixed block, 24, second fixed block, 25, fastening bolt, 26, thread groove, 3, first limiting mechanism, 31, bearing, 32, annular rotary groove, 4, second limiting mechanism, 41, first annular fixed block, 42, second annular fixed block, 5, end cover mechanism, 51, end cover, 52, connecting bolt, 6, connecting mechanism, 61, fixed block, 62, connecting block, 63, connecting through groove, 7, fillet.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, fig. 2 and fig. 3 in combination, a high-performance differential mechanism for a motor vehicle includes a differential mechanism 1, a housing connecting mechanism 2, a first limiting mechanism 3, a second limiting mechanism 4, an end cover mechanism 5, a connecting mechanism 6 and a fillet 7, wherein the differential mechanism 1 includes a transmission shaft 11, output shafts 12, driven gears 13, bevel gears 14, planetary gears 15 and a driving gear 16, the driving gear 15 is fixedly connected to one end of the transmission shaft 11 and engaged with the driven gears 13, the two output shafts 12 are symmetrically arranged, the two bevel gears 14 are respectively and fixedly connected to the opposite ends of the two output shafts 12, the two planetary gears 15 are symmetrically and rotatably connected to the driven gears 13 and engaged with the two bevel gears 14, the transmission shaft 11, the output shafts 12, the driven gears 13, the bevel gears 14, the planetary gears 15 and the driving gear 15 constitute a basic differential mechanism 1, the shell connecting mechanism 2 is wrapped outside the differential mechanism 1, the shell connecting mechanism 2 comprises an upper shell 21, a lower shell 22, a first fixing block 23, a second fixing block 24, a fastening bolt 25 and a threaded groove 26, the upper shell 21 and the lower shell 22 are symmetrically arranged up and down, the differential mechanism 1 is positioned between the upper shell 21 and the lower shell 22, the first fixing block 23 is fixedly connected on the side wall of the upper shell 21, the second fixing block 24 is fixedly connected on the side wall of the lower shell 22, the fastening bolt 25 vertically penetrates through the first fixing block 23 and is in threaded connection with the first fixing block, the threaded groove 26 is arranged in the second fixing block 24, the lower end of the fastening bolt 25 is inserted in the threaded groove 26 and is in threaded connection with the threaded groove, an outer shell is formed by the upper shell 21 and the lower shell 22, the differential mechanism 1 is wrapped, the differential mechanism 1 is limited in connection, and the differential mechanism 1 is placed in the lower shell 22 in the differential mechanism assembling, put upper casing 21 again in casing 22 top down, twist fastening bolt 25, make it screw thread groove 26 in, connect first fixed block 23 on casing 21 and second fixed block 24 on casing 22 down and fix, thereby it fixes to connect upper casing 21 and casing 22, wrap up the connection restriction to differential mechanism 1, the shell body (outer shell body is constituteed to upper casing 21 and casing 22 down) in this device can be dismantled, when the differential part damages wherein, can dismantle the shell body (outer shell body is constituteed to upper casing 21 and casing 22 down), it can to take out the change to its damaged part, greatly reduced cost of maintenance, differential mechanism 1's installation is simple swift simultaneously, has improved work efficiency.

Referring to fig. 2, the first limiting mechanism 3 is fixedly sleeved on the transmission shaft 11 and the output shaft 12, the first limiting mechanism 3 includes bearings 31 and annular rotating grooves 32, three bearings 31 are respectively sleeved on the transmission shaft 11 and the two output shafts 12, the annular rotating grooves 32 are opened in the upper casing 21 and the lower casing 22, and the bearings 31 are rotatably connected in the annular rotating grooves 32, in the differential assembly process, the bearings 31 need to be clamped into the corresponding annular rotating grooves 32, and a supporting function is provided for the transmission shaft 11 and the output shaft 12, and the transmission shaft 11 and the output shaft 12 can rotate.

Referring to fig. 2, the second limiting mechanism 4 is fixedly sleeved on the transmission shaft 11 and the output shaft 12, the second limiting mechanism 4 includes a first annular fixing block 41 and a second annular fixing block 42, three sets of the first annular fixing block 41 and the second annular fixing block 42 are respectively fixedly sleeved on the transmission shaft 11 and the two output shafts 12, the first annular fixing block 41 and the second annular fixing block 42 are respectively located at two sides of the bearing 31 and are arranged close to the bearing 31, and the bearing 31 is limited by arranging the first annular fixing block 41 and the second annular fixing block 42, so that the first annular fixing block and the second annular fixing block are matched with the annular rotating groove 32 to limit the transmission shaft 11 and the output shaft 12, and the transmission shaft 11 and the output shaft 12 are not slidable.

Referring to fig. 1 and 2, the end cover mechanism 5 is fixedly connected to the upper casing 21 and the lower casing 22, the end cover mechanism 5 includes an end cover 51 and a connecting bolt 52, the three end covers 51 are respectively sleeved on three ends of the upper casing 21 and the lower casing 22 close to the transmission shaft 11 and the two output shafts 12, the end cover 51 is fixedly connected to the upper casing 21 and the lower casing 22 through the connecting bolt 52, and the end cover 51 is fixed on a three-end outer casing (the upper casing 21 and the lower casing 22 form an outer casing) close to the transmission shaft 11 and the two output shafts 12 through the connecting bolt 52, so as to prevent impurities from entering the inside of the outer casing (the upper casing 21 and the lower casing 22 form an outer casing), and meanwhile, the upper casing 21 and the lower casing 22 are connected, so that the stability of the outer casing (the upper.

Referring to fig. 1 and 2, the connecting mechanism 6 is fixedly connected to one end of the transmission shaft 11 and one end of the output shaft 12, the connecting mechanism 6 includes fixing blocks 61, connecting blocks 62 and connecting through grooves 63, three fixing blocks 61 are respectively and fixedly connected to one end of the transmission shaft 11 and one end of the output shaft 12 outside the upper shell 21 and the lower shell 22, the connecting blocks 62 are fixedly connected to the fixing blocks 61, the connecting through grooves 63 are vertically arranged in the connecting blocks 62, and can be connected with connecting equipment through the connecting through grooves 63 in the connecting blocks 62, and most of the existing connecting modes are the same.

Referring to fig. 1 and 2, the corners of the upper casing 21 and the lower casing 22 are provided with fillets 7, edges of the outer casing (the outer casing is composed of the upper casing 21 and the lower casing 22) are passivated by setting the fillets 7, the workers are prevented from being scratched by sharp edges of the edges, a sealing gasket is arranged between the upper casing 21 and the lower casing 22, and the sealing gasket is arranged between the upper casing 21 and the lower casing 22, so that the connection sealing performance between the upper casing 21 and the lower casing 22 is improved.

The working principle of the device is as follows: in the assembly process of the differential gear in the device, the differential gear mechanism 1 is placed into the lower shell 22, the bearing 31 is required to be placed into the corresponding annular rotary groove 32, the upper shell 21 is placed above the lower shell 22, the fastening bolt 25 is screwed to be screwed into the threaded groove 26, the first fixing block 23 on the upper shell 21 and the second fixing block 24 on the lower shell 22 are connected and fixed, so that the upper shell 21 and the lower shell 22 are connected and fixed, the differential gear mechanism 1 is wrapped and connected and limited, the end cover 51 is fixed on a three-end outer shell (the upper shell 21 and the lower shell 22 form an outer shell) close to the transmission shaft 11 and the two output shafts 12 through the connecting bolt 52, the assembly of the differential gear can be completed, when parts in the differential gear are damaged, the outer shell (the upper shell 21 and the lower shell 22 form an outer shell) is disassembled, the end cover 51 is firstly disassembled, and then the first fixing block 23 and the second fixing block 24 are released from limiting and fixing, so that damaged parts in the differential can be taken out and replaced, and an outer shell (an outer shell consisting of the upper shell 21 and the lower shell 22) can be fixed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.