CN111606253B - Double-driving-wheel power device of electric carrier - Google Patents
Double-driving-wheel power device of electric carrier Download PDFInfo
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- CN111606253B CN111606253B CN202010563728.0A CN202010563728A CN111606253B CN 111606253 B CN111606253 B CN 111606253B CN 202010563728 A CN202010563728 A CN 202010563728A CN 111606253 B CN111606253 B CN 111606253B
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- 230000007246 mechanism Effects 0.000 claims abstract description 99
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000009467 reduction Effects 0.000 claims abstract description 11
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07568—Steering arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07572—Propulsion arrangements
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses a double-driving-wheel power device of an electric carrier, which comprises a positioning guide post, a transmission mechanism and double-side driving wheels, wherein the positioning guide post is connected with a steering control rod of the electric carrier or is integrally designed, the transmission mechanism is connected to the positioning guide post, and the double-side driving wheels are characterized in that the transmission mechanism comprises a shell, a motor, a secondary gear reduction mechanism and a differential mechanism which are arranged in the shell, and the shell is fixedly connected with the positioning guide post through a clamping and fixing device; the differential mechanism comprises output bevel gears positioned at two sides, an output shaft of the motor is connected with an input part of the differential mechanism through a secondary gear reduction mechanism, driving wheels at two sides are respectively connected with corresponding output bevel gears at two sides of the differential mechanism through half shafts in a spline mode, at least one driving wheel is a detachable driving wheel, a hub of the driving wheel is also connected with the outer end of a corresponding half shaft through a spline, and meanwhile, a movable stopping mechanism capable of being opened and closed is arranged on the hub of the driving wheel. Compared with the prior art, the steering device has the advantages of better steering operability, simpler structure, easy assembly and low production cost.
Description
Technical Field
The invention relates to a double-driving-wheel power device of an electric carrier.
Background
Electric carrier, commonly known as ground ox, is often used for the transportation of goods in the sales and warehouse rooms in the supermarket, and is also commonly used for transporting small and medium-sized workpieces in the production workshop.
Such electric vehicles are known to be mainly composed of a vehicle body, a steering handle (commonly referred to as a "ox head") pivotally connected to the rear portion of the vehicle body, a driving mechanism or power unit mounted on a positioning guide post below the steering handle, and a plurality of auxiliary supporting wheels mounted on the front lower portion of the vehicle body, wherein the driving mechanism currently adopts a motor-driven double-sided driving wheel.
However, in practical use, considering that the two-side driving wheels are inconvenient in steering, especially in-situ steering, the common solution in the prior art is to adopt a form of a two-motor steering driving system, namely, the two-side driving wheels are driven by one motor respectively, and the two-side motors are controlled to drive the corresponding driving wheels to perform differential operation through a set of systems formed by a controller, a sensor and the like, so that the stability and the fluency of the electric carrier in steering are enhanced. However, there are drawbacks as follows:
1) Two motors are required to be installed, and corresponding controllers and sensors are added, so that the assembly complexity of the whole system is greatly improved, and the production cost is increased.
) If the steering is in place, the dual motor drive still has a series of problems such as increased resistance, delayed reaction, etc., and is laborious to operate.
) The existing driving mechanism is basically incapable of being manually pushed due to the existence of resistance once power is lost or the motor is damaged, which is inconvenient in use.
Disclosure of Invention
The invention aims at: the electric carrier double-driving-wheel power device is better in steering operability, simpler and more compact in structure, easy to assemble and lower in production cost.
The technical scheme of the invention is as follows: the double-driving-wheel power device of the electric carrier comprises a positioning guide post, a transmission mechanism and double-side driving wheels, wherein the positioning guide post is connected with a steering control rod of the electric carrier or is integrally designed, the transmission mechanism is connected to the positioning guide post, and the double-side driving wheels are driven to rotate by the transmission mechanism; the differential mechanism comprises output bevel gears positioned on two sides, an output shaft of the motor is connected with an input part of the differential mechanism through a secondary gear reduction mechanism, two side driving wheels are respectively connected with corresponding output bevel gears on two sides of the differential mechanism through half shafts in a spline mode, at least one driving wheel is a detachable driving wheel, a hub of the driving wheel is also connected with the outer end of a corresponding half shaft through a spline, an openable movable stop mechanism is arranged on the hub of the driving wheel, when the movable stop mechanism is closed, the side half shaft is connected with the corresponding output bevel gear in a spline mode, and when the movable stop mechanism is opened, the side half shaft can be pulled out to be detached from the corresponding output bevel gear in a spline mode.
Further, the movable stop mechanism is a rotary block type stop mechanism and comprises a plurality of rotary blocks or elastic rotary blocks which are pivoted on the surface of the hub and used for axially stopping the half shaft from being outwards separated, wherein the rotary blocks are rotatable stop blocks assembled on the surface of the hub by adopting pin shafts, and the elastic rotary blocks are stop blocks which are provided with torsion springs and can reset after rotating. Or the movable stop mechanism is an elastic buckle type stop mechanism and comprises a plurality of elastic buckles which are fixed on the surface of the hub and used for axially stopping the half shaft from being outwards separated.
Furthermore, the half shaft comprises a shaft rod and a flange plate formed at one end of the shaft rod, the shaft rod is fixedly connected with an output bevel gear at the corresponding side of the differential mechanism through a spline, central holes for the shaft rod of the half shaft to penetrate are formed in hubs of the driving wheels, a concave cavity communicated with the central holes and used for accommodating the flange plate is formed in the outer end face of the hubs of the detachable driving wheels, and the outer periphery of the flange plate is connected with the inner periphery of the concave cavity through a spline; the movable stop mechanism is a rotary block type stop mechanism and comprises a plurality of rotary blocks or elastic rotary blocks which are pivoted on the surface of the hub at the periphery of the concave cavity and used for axially stopping the flange plate of the half shaft from being outwards separated; or the movable stop mechanism is an elastic buckle type stop mechanism and comprises a plurality of elastic buckles which are fixed on the surface of the hub at the periphery of the concave cavity and used for axially stopping the flange plate of the half shaft from being outwards separated.
Preferably, the half shaft corresponding to the detachable driving wheel is provided with a pull handle block positioned in the concave cavity fixedly or integrally on the outer end surface of the flange plate, and the movable stop mechanism is a rotary block type stop mechanism and comprises a plurality of rotary blocks or elastic rotary blocks which are pivoted on the surface of a hub at the periphery of the concave cavity and used for axially stopping the pull handle block from being outwards detached; or the movable stopping mechanism is an elastic buckle type stopping mechanism and comprises a plurality of elastic buckles which are fixed on the surface of the hub at the periphery of the concave cavity and used for axially stopping the pull handle block from being outwards separated; and the periphery of the pull handle block is provided with a secondary limiting clamping groove matched with the movable stop mechanism, and when the half shaft is pulled out and is separated from a corresponding output bevel gear spline, the movable stop mechanism is matched with the secondary limiting clamping groove to axially lock the half shaft.
Still preferably, only one of the driving wheels is a detachable driving wheel, a concave cavity communicated with the center hole and used for accommodating the flange plate is arranged on the outer end face of the hub, the outer periphery of the flange plate is connected with the inner periphery of the concave cavity through a spline, and the outer end face of the hub of the other driving wheel is fixed with the flange plate of the corresponding half shaft through a screw.
Further, the differential mechanism comprises a planet carrier, an external gear ring, two input bevel gears and two output bevel gears, wherein the planet carrier is pivotally arranged in a shell, the external gear ring is fixedly or integrally arranged on the planet carrier and used as an input part, the two input bevel gears are coaxially and symmetrically arranged on the planet carrier, the two output bevel gears are meshed with the two input bevel gears and used as output parts, and the two output bevel gears are respectively connected with corresponding half shafts on two sides; the secondary gear reduction mechanism comprises shaft teeth fixedly or integrally arranged on an output shaft of the motor and a duplex gear pivotally arranged in the shell, wherein a large gear in the duplex gear is meshed with the shaft teeth, and a small gear in the duplex gear is meshed with the outer gear ring.
Furthermore, the clamping and fixing device comprises a first clamping block and a second clamping block, wherein the first clamping block is fixed or integrally formed on the shell, and the first clamping block and the second clamping block are positioned on two sides of the positioning guide post and are locked through a plurality of locking screws to clamp the positioning guide post.
Furthermore, in the invention, the first clamping block and the second clamping block are both V-shaped clamping blocks and are provided with V-shaped clamping grooves for embedding and clamping the positioning guide posts.
Further, in the present invention, a protruding portion for assembling the driving wheel is formed on the housing, wherein the driving wheel on one side is assembled on the protruding portion through a plurality of bearings; the driving wheel on the other side is assembled on a supporting sleeve through a plurality of bearings, the supporting sleeve is integrally formed or fixed on the first clamping block, and the half shaft of the driving wheel on the side passes through the supporting sleeve.
Still further, in the present invention, a transverse through hole is formed in the positioning guide post for the support sleeve to pass through. The design can give support sleeve and shell better supporting role like this, strengthens the connection steadiness of support sleeve and location guide post.
The invention has the advantages that:
1. The invention adopts a single differential mechanism to replace the existing double-motor steering driving system to realize steering, has the advantages of simpler mechanism, less parts, simplified assembly and lower production cost, and is more convenient and smoother to operate and control at the same time, and is especially suitable for in-situ steering operation.
The differential mechanism in the invention is convenient to assemble on the basis of the prior art, the form that the output bevel gears at two sides are integrated with the half shaft is canceled, and the differential mechanism is connected with the half shaft by using the spline, so that the assembly and the disassembly of driving wheels at two sides are greatly facilitated.
The invention has simple integral structure and very convenient assembly, integrates the motor, the secondary gear reduction mechanism and the differential mechanism into the shell, can be easily assembled on the positioning guide post of any existing electric carrier, and is very convenient to disassemble, replace and maintain after damage.
The shell and the positioning guide post are connected by adopting the clamping and fixing device, so that the assembly and the disassembly are very convenient, and the support sleeve is penetrated in the positioning guide post only by opening a through hole in the positioning guide post in order to further enhance the connection stability of the shell and the positioning guide post.
The invention designs at least one side driving wheel as a detachable driving wheel, and adopts an openable and closable movable stopping mechanism to axially lock and unlock the connection of a half shaft of the side driving wheel and a differential mechanism. Because the half shaft is not fixed with the driving wheel at the side by the screw, the separation of the half shaft and the differential mechanism can be completed without the help of a spanner or other tools, thereby ensuring that the driving wheels at the two sides can still run smoothly under the power failure or damage state of the motor, enabling people to manually push the electric carrier and bringing convenience to use.
According to the invention, the pull handle block is further fixed on the flange plate of the half shaft at one side of the detachable driving wheel, so that the half shaft can be pulled out conveniently by manual operation, the secondary limit clamping groove matched with the movable stop mechanism is arranged on the periphery of the pull handle block, and after the half shaft is pulled out to be detached from the corresponding output bevel gear spline, the movable stop mechanism is matched with the secondary limit clamping groove to axially lock the half shaft, so that the stability of the driving wheel after the driving wheel is detached and operated is improved.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a principal cross-sectional view of the structure of the present invention (with the movable stop mechanism closed, the left drive axle half shaft engaged with the differential);
FIG. 2 is a top cross-sectional view of FIG. 1;
FIG. 3 is a principal cross-sectional view of the structure of the alternative state of FIG. 1 (with the movable stop mechanism open, the left drive axle half shaft disengaged from the differential);
FIG. 4 is a front view of the left drive wheel of FIG. 1;
FIG. 5 is a front view of the left drive wheel of FIG. 3;
fig. 6 is a schematic view of the installation position of the present invention on an electric carrier.
Wherein: 1. a steering lever; 2. positioning guide posts; 3. a driving wheel; 4. a housing; 4a, a protruding part; 5. a motor; 5a, an output shaft; 6. a differential; 6a, a planet carrier; 6b, outer gear ring; 6c, inputting a bevel gear; 6d, outputting a bevel gear; 7. a half shaft; 7a, a shaft lever; 7b, a flange plate; 8. shaft teeth; 9. a duplex gear; 9a, a large gear; 9b, a pinion; 10. a first clamping block; 11. a second clamping block; 12. locking the screw rod; 13. a bearing; 14. a support sleeve; 15. a vehicle body fixing plate; 16. an elastic rotating block; 17. a cavity; 18. a pull handle block; 18a, a secondary limiting clamping groove.
Detailed Description
Examples: referring to fig. 1 to 6, a specific embodiment of the power device with two driving wheels for an electric carrier provided by the invention is described as follows:
It is composed of a positioning guide post 2 connected with a steering control rod 1 of an electric carrier, a transmission mechanism connected to the positioning guide post 2 and a double-sided driving wheel 3 driven by the transmission mechanism to rotate, as in the conventional technology, and the core improvement of the transmission mechanism is designed.
As shown in fig. 1 and 2, the transmission mechanism in the embodiment is composed of a housing 4, a motor 5 arranged in the housing 4, a secondary gear reduction mechanism and a differential mechanism 6, wherein the housing 4 is fixedly connected with a positioning guide post 2 through a clamping and fixing device; the output shaft 5a of the motor 5 is connected to the input of the differential 6 via a secondary gear reduction mechanism, while the double-sided drive wheels 3 are connected to the outputs of the differential 6 on both sides, respectively, via half shafts 7.
As shown in fig. 1 and 2 in particular, the differential mechanism 6 in the present embodiment is constituted by a planetary carrier 6a pivotally mounted in a housing 4 by means of bearings (not shown), an outer gear ring 6b integrally provided on the planetary carrier 6a as an input portion, two input bevel gears 6c coaxially and symmetrically mounted to the planetary carrier 6a, and two output bevel gears 6d meshed with both of the two input bevel gears 6c and serving as the output portions, the two output bevel gears 6d being connected with respective half shafts 7 on both sides. The secondary gear reduction mechanism is composed of shaft teeth 8 integrally arranged on the motor output shaft 5a and a double gear 9 pivotally arranged in the shell 4, wherein a large gear 9a in the double gear 9 is meshed with the shaft teeth 8, and a small gear 9b in the double gear 9 is meshed with the outer gear ring 6 b.
In this embodiment, two half shafts 7 corresponding to the left and right driving wheels 3 are long on the left side and short on the right side, and each of them is composed of a shaft rod 7a and a flange 7b formed at one end of the shaft rod 7 a. The shaft lever 7a and the output bevel gear 6d on the corresponding side of the differential mechanism 6 are fixedly connected through a spline, and the hubs of the driving wheels 3 on the two sides are provided with central holes for the shaft lever 7a of the half shaft 7 to penetrate.
In the design of this embodiment, the driving wheel 3 on the left side is a detachable driving wheel, the outer end surface of the hub is provided with a cavity 17 which is communicated with the central hole and is used for accommodating the flange 7b of the corresponding half shaft 7, and the outer periphery of the flange 7b is connected with the inner periphery of the cavity 17 through a spline. While the outer end face of the hub of the right driving wheel 3 is fixed with the flange 7b of its corresponding half shaft 7 by screws (omitted from the drawing).
As the left driving wheel 3 is a detachable driving wheel, the half shaft 7 of the left driving wheel is ensured to be detached from the differential mechanism 6, and the half shaft and the differential mechanism are ensured to be axially locked in normal operation, the left driving wheel 3 is provided with an openable and closable movable stop mechanism on the hub of the left driving wheel. Meanwhile, in order to facilitate the detachment of the half shaft 7 of the left driving wheel 3 from the differential mechanism, a pull handle block 18 positioned in the concave cavity 17 is fixed on the outer end surface of the flange 7b of the half shaft 7.
As shown in fig. 3 to 5, the movable stopping mechanism adopted in this embodiment is a rotary block type stopping mechanism, and is composed of an upper elastic rotary block 16 and a lower elastic rotary block 16 which are pivotally arranged on the surface of the hub at the periphery of the concave cavity 17 and used for axially stopping the pull handle block 18 and the flange 7b from being separated outwards, and each elastic rotary block 16 is composed of a stopping block arranged on the surface of the hub by adopting a pin shaft and a torsion spring arranged on the pin shaft, wherein the stopping block can reset after rotating.
As shown in fig. 1 and fig. 4, in the closed state of the movable stop mechanism, that is, the upper and lower elastic rotating blocks 16 stop the pull handle block 18 from being separated, the side half shafts 7 are in spline connection with the corresponding output bevel gears 6c, and the driving wheels 3 on two sides can be driven by the motor 5 to normally run.
When the motor 5 is powered off or damaged and needs to be manually pushed to drive the driving wheels 3 on two sides to operate, a worker can operate the movable stop mechanism to be in an open state, namely, the upper elastic rotating block 16 and the lower elastic rotating block 16 are rotated to enable the pull handle block 18 to drive the half shaft 7 to be pulled out, and the side half shaft 7 is in spline separation from the corresponding output bevel gear 6c at the moment as shown in the combination of fig. 3 and 5.
And, further referring to fig. 3, in order to ensure that the left driving wheel 3 still can be locked axially in the pulled state of the half shaft 7, a secondary limiting slot 18a respectively matched with the upper and lower elastic rotating blocks 16 is arranged at the upper and lower positions of the periphery of the pull handle block 18, and when the half shaft 7 is pulled out and separated from the corresponding output bevel gear 6d by a spline, the elastic rotating blocks 16 are clamped into the corresponding secondary limiting slots 18a to lock the side half shaft 7 axially.
The clamping and fixing device in this embodiment is composed of a first clamping block 10, a second clamping block 11 and a plurality of locking screws 12, wherein the first clamping block 10 is integrally formed on the housing 4, the first clamping block 10 and the second clamping block 11 are located at two sides of the positioning guide post 2 and are locked by a plurality of locking screws 12 to clamp the positioning guide post 2, and in combination with fig. 1 and fig. 2, the first clamping block 10 and the second clamping block 11 are all V-shaped clamping blocks, and have V-shaped clamping grooves for clamping the positioning guide post 2.
The housing 4 in this embodiment is formed with a projection 4a for fitting the driving wheel 3, wherein the driving wheel 3 on the right in fig. 1 and 2 is fitted on the projection 4a by two bearings 13; the left driving wheel 3 is mounted on a supporting sleeve 14 by two bearings 13, the supporting sleeve 14 is integrally formed on the first clamping block 10, and the (shaft rod 7a of the) half shaft 7 of the side driving wheel 3 passes through the supporting sleeve 14, and the bearings 13 are all ball bearings.
In this embodiment, the positioning guide post 2 is provided with a transverse through hole for the supporting sleeve 14 to pass through, and the motor 5 is located between the driving wheels 3 at two sides, as shown in fig. 2. This design gives better support to the support sleeve 14 and the housing 4, enhancing the connection stability of the support sleeve 14 and the positioning guide post 2.
As shown in fig. 6, which is a schematic view of the installation of the present invention on an electric carrier, it is located at the rear lower portion of the vehicle body, and the upper portion of the positioning guide post 2 is connected to the steering lever 1 of the electric carrier and pivotally installed to the vehicle body fixing plate 15.
The above embodiments are merely for illustrating the technical concept and features of the present invention, and are not intended to limit the scope of the present invention to those skilled in the art to understand the present invention and implement the same. All modifications made according to the spirit of the main technical proposal of the invention should be covered in the protection scope of the invention.
Claims (8)
1. The double-driving-wheel power device of the electric carrier comprises a positioning guide post (2) which is connected with a steering control rod (1) of the electric carrier or is integrally designed, a transmission mechanism which is connected to the positioning guide post (2) and double-side driving wheels (3) which are driven by the transmission mechanism to rotate, and is characterized in that the transmission mechanism comprises a shell (4) and a motor (5), a secondary gear reduction mechanism and a differential mechanism (6) which are arranged in the shell (4), and the shell (4) is fixedly connected with the positioning guide post (2) through a clamping and fixing device; the differential mechanism (6) comprises output bevel gears (6 d) positioned at two sides, an output shaft (5 a) of the motor (5) is connected with an input part of the differential mechanism (6) through a secondary gear reduction mechanism, the two-side driving wheels (3) are respectively connected with corresponding output bevel gears (6 d) at two sides of the differential mechanism (6) through half shafts (7) in a spline mode, at least one driving wheel (3) is a detachable driving wheel, a hub of the driving wheel is also connected with the outer end of the corresponding half shaft (7) through a spline, an openable and closable movable stop mechanism is arranged on the hub of the driving wheel (3), when the movable stop mechanism is closed, the side half shaft (7) is connected with the corresponding output bevel gear (6 d) in a spline mode, and when the movable stop mechanism is opened, the side half shaft (7) can be pulled out to be detached from the corresponding output bevel gear (6 d) in a spline mode;
The movable stop mechanism is a rotary block type stop mechanism and comprises a plurality of rotary blocks or elastic rotary blocks (16) which are pivoted on the surface of the hub and used for axially stopping the half shaft (7) from being outwards separated; or the movable stop mechanism is an elastic buckle type stop mechanism and comprises a plurality of elastic buckles which are fixed on the surface of the hub and used for axially stopping the half shaft (7) from being outwards separated;
The half shaft (7) comprises a shaft lever (7 a) and a flange (7 b) formed at one end of the shaft lever (7 a), the shaft lever (7 a) is fixedly connected with an output bevel gear (6 d) at the corresponding side of the differential mechanism (6) through a spline, central holes for the shaft lever (7 a) of the half shaft (7) to penetrate are formed in hubs of the driving wheels (3), a concave cavity (17) communicated with the central holes and used for accommodating the flange (7 b) is formed in the outer end face of the hubs of the detachable driving wheels, and the periphery of the flange (7 b) is connected with the inner periphery of the concave cavity (17) through a spline; the movable stop mechanism is a rotary block type stop mechanism and comprises a plurality of rotary blocks or elastic rotary blocks (16) which are pivoted on the surface of a hub at the periphery of the concave cavity (17) and used for axially stopping the flange (7 b) of the half shaft (7) from being outwards separated; or the movable stop mechanism is an elastic buckle type stop mechanism and comprises a plurality of elastic buckles which are fixed on the surface of the hub at the periphery of the concave cavity (17) and used for axially stopping the flange plate (7 b) of the half shaft (7) from being outwards separated.
2. The electric carrier double-driving-wheel power device according to claim 1, characterized in that a half shaft (7) corresponding to the detachable driving wheel is fixedly or integrally provided with a pull handle block (18) positioned in the concave cavity (17) on the outer end surface of a flange plate (7 b), and the movable stopping mechanism is a rotary block type stopping mechanism and comprises a plurality of rotary blocks or elastic rotary blocks (16) pivoted on the hub surface of the periphery of the concave cavity (17) for axially stopping the pull handle block (18) from being outwards separated; or the movable stopping mechanism is an elastic buckle type stopping mechanism and comprises a plurality of elastic buckles which are fixed on the surface of the hub at the periphery of the concave cavity (17) and used for axially stopping the pull handle block (18) from being outwards separated; and a secondary limit clamping groove (18 a) matched with the movable stop mechanism is formed in the periphery of the pull handle block (18), and when the half shaft (7) is pulled out and is separated from a spline of the corresponding output bevel gear (6 d), the movable stop mechanism is matched with the secondary limit clamping groove (18 a) to axially lock the half shaft (7).
3. A power plant for double driving wheels of electric vehicles according to claim 1 or 2, characterized in that only one driving wheel is a detachable driving wheel, the outer end face of the hub of which is provided with a cavity (17) which is communicated with the central hole and is used for accommodating a flange plate (7 b), the periphery of the flange plate (7 b) is connected with the inner periphery of the cavity (17) through a spline, and the outer end face of the hub of the other driving wheel (3) is fixed with the flange plate (7 b) of the corresponding half shaft (7) through a screw.
4. A double driving wheel power device for electric haulers according to claim 1, characterized in that the differential (6) further comprises a planetary carrier (6 a) pivotally mounted in the housing (4), an outer gear ring (6 b) fixedly or integrally provided on the planetary carrier (6 a) as an input part, and two input bevel gears (6 c) coaxially and symmetrically mounted to the planetary carrier (6 a), the two output bevel gears (6 d) being in mesh with both of the two input bevel gears (6 c); the secondary gear reduction mechanism comprises shaft teeth (8) fixedly or integrally arranged on an output shaft (5 a) of the motor and a duplex gear (9) pivotally arranged in the shell (4), wherein a large gear (9 a) in the duplex gear (9) is meshed with the shaft teeth (8), and a small gear (9 b) in the duplex gear (9) is meshed with the outer gear ring (6 b).
5. The electric carrier double-driving-wheel power device according to claim 1, characterized in that the clamping and fixing device comprises a first clamping block (10) and a second clamping block (11), wherein the first clamping block (10) is fixed or integrally formed on the shell (4), and the first clamping block (10) and the second clamping block (11) are positioned on two sides of the positioning guide post (2) and are locked by a plurality of locking screws (12) to clamp the positioning guide post (2).
6. The electric carrier double-driving-wheel power device according to claim 5, characterized in that the first clamping block (10) and the second clamping block (11) are both V-shaped clamping blocks, and are provided with V-shaped clamping grooves for clamping the positioning guide posts (2).
7. The electric carrier double-driving-wheel power device according to claim 5, characterized in that the housing (4) is formed with a protruding part (4 a) for the driving wheel (3) to be assembled, wherein the driving wheel (3) on one side is assembled on the protruding part (4 a) through a plurality of bearings (13); the driving wheel (3) on the other side is assembled on a supporting sleeve (14) through a plurality of bearings (13), the supporting sleeve (14) is integrally formed or fixed on the first clamping block (10), and the half shaft (7) of the driving wheel (3) passes through the supporting sleeve (14).
8. The electric carrier dual drive wheel power device according to claim 7, characterized in that the positioning guide post (2) is provided with a transverse through hole for the support sleeve (14) to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010563728.0A CN111606253B (en) | 2020-06-19 | 2020-06-19 | Double-driving-wheel power device of electric carrier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010563728.0A CN111606253B (en) | 2020-06-19 | 2020-06-19 | Double-driving-wheel power device of electric carrier |
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| CN111606253A CN111606253A (en) | 2020-09-01 |
| CN111606253B true CN111606253B (en) | 2024-06-25 |
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| CN212639863U (en) * | 2020-06-19 | 2021-03-02 | 苏州盛亿电机有限公司 | Dual-drive-wheel power device of electric carrier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101786416B (en) * | 2010-03-19 | 2012-12-26 | 薛建南 | Electric vehicle deceleration and differential integrated rear axle assembly |
| CN202541308U (en) * | 2012-03-30 | 2012-11-21 | 杭州前进齿轮箱集团股份有限公司 | Drive axle of milling machine |
| CN104675951B (en) * | 2015-02-11 | 2017-02-01 | 吉林大学 | Electric differential with double-row planetary gear torque directional distribution mechanism |
| CN105790500A (en) * | 2016-04-23 | 2016-07-20 | 中国第汽车股份有限公司 | Integrated driving device for electric vehicle |
| CN210062674U (en) * | 2019-05-07 | 2020-02-14 | 熊加刚 | Differential drive assembly for hauler and small hydraulic hauler using same |
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2020
- 2020-06-19 CN CN202010563728.0A patent/CN111606253B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212639863U (en) * | 2020-06-19 | 2021-03-02 | 苏州盛亿电机有限公司 | Dual-drive-wheel power device of electric carrier |
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| CN111606253A (en) | 2020-09-01 |
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