CN114517886B

CN114517886B - Be used for electric fork truck driving system reducing gear box pump oil auxiliary assembly

Info

Publication number: CN114517886B
Application number: CN202210413870.6A
Authority: CN
Inventors: 汪科; 项寿南; 王凡; 杨力
Original assignee: Anhui Weide Power Supply Co ltd
Current assignee: Anhui Weide Power Supply Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-07-08
Anticipated expiration: 2042-04-20
Also published as: CN114517886A

Abstract

The invention discloses an oil pumping auxiliary device for a reduction gearbox of an electric forklift power system, which comprises a protective component, a pipeline connecting and mounting component and an oil pump component, wherein the pipeline connecting and mounting component comprises a main body and a connecting piece; the main body of the protection assembly comprises a sheet metal shell arranged in the middle of the whole assembly, an annular carrying auxiliary structure at one end part and an oil pipe restraining assembly at the other end part; the oil pump component part mainly comprises a support bracket, an oil pump motor component and an oil well pump. The invention combines the action of air extractor equipment to extract the air in the reduction box body, and the air extractor equipment is provided with a pressure monitoring instrument to detect the air tightness of the reduction box body; the oil pumping process can be completed only by one person, the overall working efficiency is obviously improved, the oil pumping is stable, the oil is not easy to overflow, the concept of a green manufacturing system is favorably implemented, and the workshop environment is obviously improved.

Description

Be used for electric fork truck driving system reducing gear box pump oil auxiliary assembly

Technical Field

The invention relates to the field of production and processing equipment of power systems of industrial vehicles, in particular to auxiliary equipment for pumping oil of a reduction gearbox of a power system of an electric forklift.

Background

With the progress of the high-voltage lithium-powered electric industrial vehicle, the problem that an electric control system under the original electric forklift system depends on import is more and more obvious, and the technical development of domestic electric industrial vehicle manufacturers is severely limited; after the high-voltage lithium is electrified, the large-scale matching optimization work of an electric control system is involved, domestic electric industrial vehicle manufacturers basically have no equivalent dialogue status with foreign electric control part manufacturers, and the optimization upgrading project can not be normally promoted basically; and the existing electric control system import depends on the current situation, so that the passive mind of domestic manufacturers on the technical progress and upgrading of the driving and hydraulic systems is also caused.

By comprehensively analyzing the development trend of core parts of modern electric forklifts, the problems which are urgently needed to be solved by domestic and overseas high-voltage lithium electric forklifts at the present stage and the practical problems of limiting the development of domestic electric forklifts are combined with the core technology of independent development, the monopoly of the foreign technology is broken, and an innovative driving scheme with independent intellectual property rights is formed.

The reduction gearbox is also called as a speed reducer or a speed reducer, works according to the principle that a prime motor is connected with the reduction gearbox which is then connected with a working machine, and is power transmission equipment; on the contrary, when the speed-up transmission is available, the prime motor provides power with low rotating speed and large torque, and in the mechanical transmission, the reduction gearbox needs to drive the working machine to achieve the preset purpose.

At present, when grease is added into a speed reducer of a power system, the process of adding the grease needs two to three manual aids, the grease is easy to overflow, the influence on the workshop environment is large, although the steps are few, the overall working efficiency is low, and for the development of a digital workshop, the existing adding mode is backward in process and cannot meet the requirement of actual production.

Disclosure of Invention

The invention aims to provide an auxiliary oil pumping device for a reduction gearbox of a power system of an electric forklift to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a be used for electronic fork truck driving system reducing gear box pump oil auxiliary assembly, includes reduction box, pump oil auxiliary assembly main part and air extractor equipment, and pump oil auxiliary assembly main part includes protection component, pipe connection installation component and oil pump subassembly.

As a further scheme of the invention: the main body of the pipeline connecting and mounting assembly consists of a fastener and a connecting piece, the fastener and the connecting piece are of an integrally formed structure, the middle part of the fastener and the middle part of the connecting piece are separated by a partition plate, the fastener and the connecting piece are also of an integrally formed structure, because the pipeline connecting and mounting assembly and the connecting piece are required to be mounted, external threads are arranged on the outer wall of the connecting piece and are mounted on the protective assembly through the connecting piece, a through hole for mounting an air duct is arranged at the middle position of the fastener and the connecting piece, a sealing ring is sleeved on the outer wall of the air duct during mounting, the end part of the air duct arranged at the inner side of the connecting piece is connected with external air extractor equipment through a pipeline, an air extractor equipment mounting structure is arranged at the inner side of the fastener, and the air extractor equipment mounting structure is fixedly connected with the inner wall of the fastener through the action of a screw, the pipeline on the mounting structure of the air extraction equipment is communicated with the vent pipeline, the end face of the mounting structure of the air extraction equipment is provided with an air extraction equipment component, the air extraction equipment component is connected with the mounting structure of the air extraction equipment through screws, the lip part of the fastening piece is provided with flange butt joint mounting holes, the pipeline connecting mounting component and the reduction box body are mounted through the actions of bolts, the flange butt joint mounting holes and the flange mounting holes on the flange plate, the flange butt joint mounting holes correspond to the flange mounting holes on the flange plate one by one, the pipeline connecting mounting component is provided with two oil supply pipelines, one end of each oil supply pipeline penetrates through the partition plate and extends to the inner side of the fastening piece, the other end of each oil supply pipeline is arranged at the inner side of the connecting piece, the oil supply pipelines are inserted on the partition plate, the connecting part of each oil supply pipeline and the partition plate is provided with a sealing ring, and the pipeline connecting mounting component is provided with an annular oil pipe, the utility model discloses a joint, including annular oil pipe, connecting pipe, oil feeding pipeline, annular oil pipe and connecting pipe, a connecting pipe side sets up the connecting pipe, the inside UNICOM each other of connecting pipe and annular oil pipe, oil feeding pipeline, annular oil pipe and connecting pipe all are the pipe fitting that hard material made, connecting pipe tip position is provided with glues the lid, it passes through screw thread fastening connection with the tip of connecting pipe to glue the lid, and be equipped with the sealing washer on the inner wall of gluing the lid, two connecting pipes just in time correspond each other with the position of oil feeding pipeline, and two connecting pipes of this department and the installation of pegging graft between oil feeding pipeline, and fasten through the fastener, fasteners such as fastening clip or fastening sticky tape can be chooseed for use to the fastener.

As a still further scheme of the invention: the main body of the protection assembly comprises a sheet metal shell arranged in the middle of the whole assembly, an annular conveying auxiliary structure at one end part and an oil pipe restraining assembly at the other end part, wherein the annular conveying auxiliary structure is fixed on the outer wall of the sheet metal shell in a welding mode, the sheet metal shell part is of a cylindrical structure, the pipeline connecting and mounting assembly is arranged at one side of the annular conveying auxiliary structure, the thread of the outer wall of the connecting piece is matched and connected with the thread on the inner wall of the sheet metal shell, the oil pipe restraining assembly comprises a clip-shaped accommodating cavity, an annular oil pipe support and an oil pipe clamping belt, the clip-shaped accommodating cavity is welded on the outer wall of the sheet metal shell in a welding mode, an annular accommodating groove is formed between the sheet metal shell and the clip-shaped accommodating cavity and is used for accommodating the oil pipe, the annular oil pipe support is arranged on the inner wall of the sheet metal shell in a welding mode, and is provided with oil pipe restraining holes which are uniformly distributed, the annular oil pipe support and the oil pipe constraint hole are used for arranging and limiting the oil pipe, the overlong part of the upper end of the oil pipe is coiled inside the containing groove in a spiral mode, an oil pipe clamping belt is arranged on the inner wall of the accommodating cavity in a shape returning mode, the oil pipe clamping belt and the accommodating cavity in the shape returning mode are of an integrally formed structure, evenly distributed bayonets are arranged on the oil pipe clamping belt, the inner wall of each bayonet is processed through a frosting process, and the end portion of the oil pipe is clamped inside the bayonets.

As a still further scheme of the invention: the oil pump component part mainly comprises a supporting bracket, an oil pump motor component and an oil well pump, wherein the oil pump component is arranged inside the protecting component, the supporting bracket is of an annular structure and is arranged on the inner wall of the protecting component under the action of a screw, the supporting bracket is arranged at the position of the sheet metal shell, the oil pump motor component is arranged on the end surface of the supporting bracket under the action of a fixing bracket, the output end of the oil pump motor component is provided with the oil well pump, the oil pump motor component is in transmission connection with the oil well pump, the oil well pump is fixedly arranged on the outer wall of the oil pump motor component under the action of a screw, the supporting bracket is provided with oil pipe through holes, the oil pipe through holes are distributed at the positions on the two sides of the oil well pump and are used for fixing and guiding an oil pipe connected with the oil well pump, and the output end and input end of the oil well pump are externally connected with oil pipes, in the pipeline connection installation component, the ox horn pipes are installed at the end parts of the two connecting pipes, the connecting pipes of the pipeline connection installation component are totally six, the two connecting pipes are used for being connected with an oil supply pipeline, the two connecting pipes are used for being connected with the ox horn pipes, the two connecting pipes are standby interfaces, the standby interfaces are provided with rubber covers, and the rubber covers are connected with the end parts of the connecting pipes in a fastening mode through threads, so that the purpose of oil supply is achieved.

Compared with the prior art, the invention has the beneficial effects that:

the invention combines the function of air extractor equipment to extract the air in the reduction box body, the end part of the ventilation pipeline arranged at the inner side of the connecting piece is connected with external air extractor equipment through a pipeline, the air in the reduction box body is extracted after the two box covers of the reduction box body are combined through the function of the air extractor equipment, and the air extractor equipment is provided with a pressure monitoring instrument to monitor the pressure in the air extraction pipeline, namely, the pressure in the reduction box body is monitored after the two box covers of the reduction box body are combined, and the air tightness of the reduction box body can be detected through the mode.

The invention carries out oil pumping operation after the interior of the reduction box body is in a negative pressure state, the oil pumping process can be completed only by one person, when the oil pumping operation is carried out, firstly, the reduction box body is arranged on the main body of the oil pumping auxiliary equipment, the installation method is to fix the flange plate and the fastening piece through the action of the bolt, the annular carrying auxiliary structure is grasped by two hands, the oil pumping auxiliary equipment main body is prevented from moving or collapsing, the oil adding operation can be carried out after the installation, when the oil is added, the switch of the oil well pump is opened, the equipment is electrified, the input end of the oil well pump is connected to the equipment containing the oil outside through the oil pipe, the output end of the oil well pump is connected to the ventilation pipeline, then the oil is pumped into the interior of the reduction box body under the action of the oil pump, the quantitative oil is pumped into the interior of the reduction box body according to the process requirements, the integral working efficiency is obviously improved, and the oil pumping is stable, the grease is not easy to overflow, which is beneficial to implementing the concept of green manufacturing system, and the workshop environment is obviously improved.

Drawings

Fig. 1 is a schematic structural diagram of an auxiliary oil pumping device for a reduction gearbox of an electric forklift power system.

FIG. 2 is a front view of an auxiliary oil pumping device for a reduction gearbox of an electric forklift power system.

FIG. 3 is a schematic diagram of a reduction gearbox for a power system of an electric forklift.

Fig. 4 is a schematic structural diagram of an oil pumping auxiliary device main body in the oil pumping auxiliary device for the reduction gearbox of the power system of the electric forklift.

Fig. 5 is another directional view of the oil pumping aid main body.

FIG. 6 is a schematic structural diagram of a protection assembly used in an oil pumping auxiliary device of a reduction gearbox of an electric forklift power system.

Fig. 7 is another directional view of the shield assembly.

FIG. 8 is a schematic structural view of a pipe connection mounting assembly used in an oil pumping auxiliary device of a reduction gearbox of an electric forklift power system.

Figure 9 is another directional view of the plumbing connection mounting assembly.

FIG. 10 is a schematic structural diagram of an oil pump assembly used in an oil pumping auxiliary device of a reduction gearbox of an electric forklift power system.

FIG. 11 is another directional view of the oil pump assembly.

FIG. 12 is a schematic structural view of the pipeline connection installation assembly and the oil pump assembly after being installed in the auxiliary oil pumping equipment for the reduction gearbox of the power system of the electric forklift.

FIG. 13 is another side view of the plumbing connection mounting assembly and the oil pump assembly after installation.

In the figure: 1-a reduction box body, 11-a reduction box cover, 12-a reduction box inner cavity, 13-a flange plate, 2-an oil pumping auxiliary equipment main body, 3-a protective component, 31-a sheet metal shell, 32-an annular carrying auxiliary structure, 33-a square-shaped containing cavity, 34-an annular oil pipe support, 35-an oil pipe constraint hole, 36-a containing groove, 37-an oil pipe clamping band, 38-a bayonet, 4-pipeline connecting and mounting components, 41-a fastener, 42-a connecting piece, 43-an oil supply pipeline, 44-an annular oil pipe, 45-a connecting pipe, 46-an air extraction equipment mounting structure, 47-a ventilation pipeline, 48-a flange butt joint mounting hole, 49-an air extraction equipment component, 5-an oil pump component, 51-a support bracket, 52-an oil pipe through hole, a flange plate, a support, a flange plate, and a flange plate, a flange, and a flange plate, and a support bracket, a flange plate, and a support, and a flange plate, wherein the like a flange plate, and a support bracket are arranged on the like all of the like a support bracket are arranged on the like, 53-oil pump motor subassembly, 54-oil-well pump.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, an oil pumping auxiliary device for a reduction gearbox of an electric forklift power system comprises a reduction gearbox body 1, an oil pumping auxiliary device main body 2 and an air extractor device, wherein the reduction gearbox body 1 is a component of the electric forklift power system, the side surface of the reduction gearbox body 1 is used for mounting a driving motor and an oil pump motor, the reduction gearbox body 1 comprises a reduction gearbox cover 11, a reduction gearbox inner cavity 12 and a flange plate 13, the reduction gearbox body 1 is fixed by two parts of box cover combination box through the action of bolts, the reduction gearbox body 1 is sealed through a sealing ring, the sealing performance of the reduction gearbox body 1 is kept through the action of glue, the using performance of the gearbox body is improved, in the invention, the box cover of the upper part is removed, in order to better observe the condition and the specific structure inside the reduction gearbox body 1, the box cover of the lower part is reserved, the end part of the reduction gearbox cover 11 is provided with the flange plate 13, the flange plate 13 and the reduction box cover 11 are integrally formed through a die, a differential mechanism of a power system driving assembly is arranged in the middle of the inner side of the flange plate 13, the differential mechanism is arranged on the flange plate 13 through a bearing seat, the bearing seat is composed of a fixed part and a movable part, the fixed part is of an integrally formed structure with the flange plate 13, the movable part is fixed on the fixed part through bolts, the differential mechanism is arranged on the bearing seat through a rotating shaft and a bearing, a reduction box inner cavity 12 is arranged on the inner side of the reduction box cover 11, a gear shaft structure of the reduction box is arranged inside the reduction box inner cavity 12, and the reduction box inner cavity 12 is used for containing grease for lubricating a gear shaft piece.

The oil pumping auxiliary equipment main body 2 is used for adding oil to the interior of the reduction box body 1, the oil pumping auxiliary equipment main body 2 is the most core part in the oil pumping auxiliary equipment main body, the oil pumping auxiliary equipment main body 2 is connected with the reduction box body 1, particularly, the oil pumping auxiliary equipment main body is fixedly installed through bolts, when the oil is added, the reduction box body 1 is placed in a vertical state, and because the connecting position between the flange plate 13 of the power assembly and the reduction box cover 11 is horn-shaped, the oil pumping auxiliary equipment main body is favorable for flowing of the oil, the optimal state is kept, and the oil is added.

The air pumping device is divided into two parts, one part is arranged in the oil pumping auxiliary device main body 2, the other part is externally connected through a pipeline, the externally connected part is the air pumping device, one end of the pipeline is connected with an input end arranged in the oil pumping auxiliary device main body 2, the other end of the pipeline is connected with a port of the air pumping device, the air in the two parts of the reduction box body 1 after box cover closing is pumped out under the action of the air pumping device, a pressure monitoring instrument is arranged on the air pumping device, the pressure in the air pumping pipeline is monitored, namely, the pressure in the two parts of the reduction box body 1 after box cover closing is monitored, so that the pressure data in the reduction box body 1 is obtained, the air tightness of the reduction box body 1 is monitored, grease cannot be leaked in the reduction box body 1, and because the flange plate 13 part of the reduction box body 1 is connected with a drive axle part of an industrial vehicle, there is no leakage of grease at the location of the flange 13 during use.

Example 1, single equipment use (only oil pumping aid used):

referring to fig. 3-13, an auxiliary device for pumping oil for a reduction gearbox of an electric forklift power system comprises a main body 2 of the auxiliary device for pumping oil, a protection component 3, a pipeline connecting and mounting component 4 and an oil pump component 5, wherein the pipeline connecting and mounting component 4 is partially mounted with the reduction gearbox 1, the pipeline connecting and mounting component 4 is mainly used for connecting the reduction gearbox 1 with the protection component 3 and arranging pipelines, arrange the pipeline and be convenient for the installation, the pipeline distribution is regular, and is very convenient when connecting oil pipe, through the screw thread installation between protection component 3 and the tube coupling installation component 4, protection component 3 is shell spare, and the effect that plays is the protection, supports the installation of other subassemblies and regular to the appearance, and oil pump assembly 5 is through the mounting screw on protection component 3's inner wall, and oil pump assembly 5 mainly carries out the supply of grease.

The main body of the pipeline connecting and mounting assembly 4 is composed of a fastening piece 41 and a connecting piece 42, the fastening piece 41 and the connecting piece 42 are of an integrated structure, the middle part of the fastening piece 41 and the middle part of the connecting piece 42 are separated by a partition plate, the fastening piece 41 and the connecting piece 42 are also of an integrated structure, rubber strips which are uniformly distributed are arranged on the outer wall of the fastening piece 41 and are adhered to the outer surface of the fastening piece 41 through strong glue, in the using process, because the pipeline connecting and mounting assembly 4 and the protection assembly 3 are to be mounted, external threads are arranged on the outer wall of the connecting piece 42 and are mounted on the protection assembly 3 through the connecting piece 42, a flange butt joint mounting hole 48 is arranged on the lip part of the fastening piece 41, the pipeline connecting and mounting assembly 4 and the reduction box body 1 are mounted through the functions of a bolt, the flange butt joint mounting hole 48 and a flange mounting hole on the flange plate 13, the flange butt joint mounting holes 48 correspond to the flange mounting holes on the flange plate 13 one by one, in the actual mounting operation process, two bolts can be used for fixing equipment, the bolts of all the mounting holes are not required to be mounted, the fastening and positioning effects can be realized through the two bolts, the pipeline connecting mounting assembly 4 is provided with two oil supply pipelines 43, the two oil supply pipelines 43 are arranged, one end of each oil supply pipeline 43 penetrates through the partition plate and extends to the inner side of the fastening piece 41, the other end of each oil supply pipeline 43 is arranged on the inner side of the corresponding connecting piece 42, each oil supply pipeline 43 is inserted into the corresponding partition plate, a sealing ring is arranged at the connecting position of each oil supply pipeline 43 and the corresponding partition plate, the pipeline connecting mounting assembly 4 is provided with an annular oil pipe 44, one side surface of each annular oil pipe 44 is provided with a connecting pipe 45, the connecting pipe 45 is mutually communicated with the inner part of the annular oil pipe 44, and the oil supply pipelines 43 and the connecting pipes 43 are connected with the partition plates through sealing rings, Annular oil pipe 44 and connecting pipe 45 are all the pipe fittings that hard material made, and connecting pipe 45 tip position is provided with glues the lid, glues the lid and passes through screw thread fastening connection with the tip of connecting pipe 45 to be equipped with the sealing washer on gluing the inner wall of lid, two connecting pipes 45 just in time correspond each other with the position of giving oil pipe way 43, and two connecting pipes 45 of this department and give the installation of pegging graft between oil pipe way 43, and through the fastener fastening, fasteners such as fastening clip or fastening sticky tape can be selected for use to the fastener.

The main body of the protection component 3 comprises a sheet metal shell 31 arranged in the middle of the whole component, an annular carrying auxiliary structure 32 at one end part and an oil pipe restraining component at the other end part, the annular carrying auxiliary structure 32 is fixed on the outer wall of the sheet metal shell 31 in a welding mode, the sheet metal shell 31 is of a cylindrical structure, the pipeline connecting and mounting component 4 is arranged on one side of the annular carrying auxiliary structure 32, the thread of the outer wall of the connecting piece 42 is matched and connected with the thread on the inner wall of the sheet metal shell 31, the oil pipe restraining component comprises a clip-shaped accommodating cavity 33, an annular oil pipe support 34 and an oil pipe clamping belt 37, the clip-shaped accommodating cavity 33 is welded on the outer wall of the sheet metal shell 31 in a welding mode, an annular accommodating groove 36 is formed between the sheet metal shell 31 and the clip-shaped accommodating cavity 33, the accommodating groove 36 is used for accommodating oil pipes, and the annular oil pipe support 34 is installed on the inner wall of the sheet metal shell 31 in a welding mode, be equipped with evenly distributed's the about hole 35 of oil pipe on annular oil pipe support 34, the effect of the about hole 35 of annular oil pipe support 34 and oil pipe is arranged and spacing oil pipe, avoids oil pipe more in disorder, and the part of oil pipe upper end overlength is coiled in the inside of holding tank 36 through the mode of spiraling, has set up oil pipe cassette tape 37 on the inner wall that the shape of returning holds chamber 33, and oil pipe cassette tape 37 holds chamber 33 with returning the shape and is the integrated into one piece structure, oil pipe cassette tape 37 is last to have set up evenly distributed's bayonet socket 38, and the inner wall of bayonet socket 38 is through dull polish technology processing, and the tip card of oil pipe is in the inside of bayonet socket 38.

The oil pump component 5 mainly comprises a supporting bracket 51, an oil pump motor component 53 and an oil pump 54, the oil pump component 5 is arranged inside the protective component 3, the supporting bracket 51 is of an annular structure, the supporting bracket 51 is arranged on the inner wall of the protective component 3 through the action of screws, the supporting bracket 51 is arranged at the position of the sheet metal shell 31, the oil pump motor component 53 is arranged on the end surface of the supporting bracket 51 through the action of a fixing bracket, the oil pump 54 is arranged at the output end of the oil pump motor component 53, the output end of the oil pump motor component 53 is in transmission connection with the oil pump 54, the oil pump 54 is fixedly arranged on the outer wall of the oil pump motor component 53 through the screws, the supporting bracket 51 is provided with oil pipe through holes 52, the oil pipe through holes 52 are distributed at the positions on two sides of the oil pump 54 for fixing and guiding the oil pump connected with the oil pump 54, the output end and the input end of the oil pump 54 are externally connected with oil pipes, in the pipeline connecting and mounting assembly 4, the ox horn pipes are mounted at the end parts of the two connecting pipes 45, the connecting pipe direction of the connecting pipes 45 is changed through the effect of the ox horn pipes, the structure is convenient for the mounting operation of the oil pipes, because the end parts of the connecting pipes 45 are arranged towards the inner side of the connecting piece 42, the structure is favorable for enveloping size, the connecting pipes 45 of the pipeline connecting and mounting assembly 4 are totally six, the two connecting pipes 45 are used for being connected with the oil supply pipeline 43, the two connecting pipes 45 are used for being connected with the ox horn pipes, the two connecting pipes 45 are spare interfaces, rubber covers are arranged on the spare interfaces, the rubber covers are fixedly connected with the end parts of the connecting pipes 45 through threads, and therefore the purpose of oil supply is achieved.

The working principle of the embodiment is as follows: when the oil pumping auxiliary equipment main body 2 is used, firstly, the reduction box body 1 is installed on the oil pumping auxiliary equipment main body 2, the installation method is that the flange plate 13 and the fastening piece 41 are fixed through the action of bolts, the flange plate 13 and the fastening piece 41 are provided with the flange installation holes and the flange butt joint installation holes 48 which correspond to each other, the protection component 3 mainly protects components installed inside the protection component 3, the protection component 3 also plays a role of supporting the whole oil pumping auxiliary equipment main body 2, the protection component 3 can be placed on an operation table top and can also be vertically installed on a processing line body along with the reduction box body 1, the annular carrying auxiliary structure 32 is arranged to facilitate the transportation of the oil pumping auxiliary equipment main body 2 and enable an operator to keep the stability of the oil pumping auxiliary equipment main body 2 in the oil adding operation, the annular carrying auxiliary structure 32 is held by two hands to avoid the oil pumping auxiliary equipment main body 2 from moving or collapsing, the operation of adding grease can be carried out after the installation, when the grease is added, the switch of the oil-well pump 54 is turned on to electrify the equipment, the input end of the oil-well pump 54 is connected to the external equipment containing the grease through an oil pipe, the output end is connected to the vent pipeline 47, then pumping oil into the interior of the reduction box body 1 under the action of an oil pump, installing a flow meter on equipment containing grease at the exterior, pumping quantitative grease into the interior of the reduction box body 1 according to the process requirement, wherein a valve is preferably arranged on an oil pipe connecting the output end of the oil well pump 54 and the air vent pipe 47, because the valve can control the circulation of grease, the grease in the oil pipe is prevented from leaking to the equipment, then the oil pumping is finished, the oil pipe connected to the oil well pump 54 is evacuated after the oil pumping is finished, if a valve is provided on the tubing connecting the output of the pump 54 to the vent line 47, the valve is closed.

Example 2, both devices were used simultaneously (air extractor device and oil pumping aid device were used simultaneously):

referring to fig. 3-13, an auxiliary device for pumping oil for a reduction gearbox of an electric forklift power system, a main body 2 of the auxiliary device for pumping oil comprises a protection component 3, a pipeline connecting and mounting component 4 and an oil pump component 5, wherein the pipeline connecting and mounting component 4 is partially mounted with the reduction gearbox 1, the pipeline connecting and mounting component 4 is mainly used for connecting the reduction gearbox 1 with the protection component 3 and arranging pipelines, the pipelines are conveniently arranged and regularly distributed, the pipeline connecting and mounting component is very convenient to connect with an oil pipe, the protection component 3 is mounted with the pipeline connecting and mounting component 4 through threads, the protection component 3 is a shell component and plays a role in protection, supporting the mounting of other components and the arrangement of the appearance, the oil pump component 5 is mounted on the inner wall of the protection component 3 through screws, and the oil pump component 5 is mainly used for supplying grease, the grease in the present invention is engine oil.

The main body of the pipeline connecting and mounting assembly 4 is composed of a fastening piece 41 and a connecting piece 42, the fastening piece 41 and the connecting piece 42 are of an integrated structure, the middle part of the fastening piece 41 and the connecting piece 42 is separated by a partition plate, the fastening piece 41 and the connecting piece 42 are also of an integrated structure, rubber strips which are uniformly distributed are arranged on the outer wall of the fastening piece 41 and are adhered to the outer surface of the fastening piece 41 through strong glue, in the using process, because the pipeline connecting and mounting assembly 4 and the protection assembly 3 are to be mounted, external threads are arranged on the outer wall of the connecting piece 42 and are mounted on the protection assembly 3 through the connecting piece 42, through holes for mounting an air vent pipeline 47 are arranged in the middle of the fastening piece 41 and the connecting piece 42, a sealing ring is sleeved on the outer wall of the air vent pipeline 47 during mounting to avoid air leakage, the end part of the air vent pipeline 47, which is arranged on the inner side of the connecting piece 42, is connected with external air extractor equipment through a pipeline, the air inside the reduction box body 1 after the two box covers of the reduction box body 1 are combined is pumped out under the action of air pumping equipment, a pressure monitoring instrument is arranged on the air pumping equipment to monitor the pressure inside an air pumping pipeline, namely, the pressure inside the two box covers of the reduction box body 1 after being combined is monitored, so that the pressure data inside the reduction box body 1 is obtained, the air tightness of the reduction box body 1 is monitored, grease cannot leak inside the reduction box body, an air pumping equipment mounting structure 46 is arranged on the inner side of a fastening piece 41, the air pumping equipment mounting structure 46 is fixedly connected with the inner wall of the fastening piece 41 under the action of screws, a pipeline on the air pumping equipment mounting structure 46 is communicated with a vent pipeline 47, an air pumping equipment assembly 49 is arranged on the end face of the air pumping equipment mounting structure 46, and the air pumping equipment assembly 49 is connected with the air pumping equipment mounting structure 46 through screws, the air extraction equipment assembly 49 can use the existing equipment and is used for extracting air from the interior of the reduction box body 1, the main function of the air extraction equipment assembly is to ensure that the air cannot flow back after air extraction, the air extraction effect is ensured, the pressure in the interior of the reduction box body 1 is basically the same as the pressure in the interior of an air extraction pipeline, therefore, the pressure in the interior of the reduction box body 1 can be monitored by a pressure gauge on the pipeline during measurement, the pressure monitoring effect is achieved, the flange butt joint mounting holes 48 are arranged on the lip part of the fastening piece 41, the pipeline connection mounting assembly 4 and the reduction box body 1 are mounted by the bolts, the flange butt joint mounting holes 48 and the flange mounting holes on the flange plate 13, the flange butt joint mounting holes 48 correspond to the flange mounting holes on the flange plate 13 one by one, and in the actual mounting operation process, two bolts can be used for fixing the equipment, the fastening and positioning functions can be realized through two bolts without mounting all bolts of all mounting holes, the pipeline connecting and mounting assembly 4 is provided with two oil supply pipelines 43, the oil supply pipelines 43 are provided, one end of each oil supply pipeline 43 penetrates through the partition plate and extends to the inner side of the fastening piece 41, the other end of each oil supply pipeline 43 is arranged on the inner side of the connecting piece 42, each oil supply pipeline 43 is inserted on the partition plate, a sealing ring is arranged at the joint of each oil supply pipeline 43 and the partition plate, the pipeline connecting and mounting assembly 4 is provided with an annular oil pipe 44, one side surface of each annular oil pipe 44 is provided with a connecting pipe 45, the connecting pipe 45 is communicated with the inside of each annular oil pipe 44, the oil supply pipelines 43, the annular oil pipes 44 and the connecting pipes 45 are all pipe fittings made of hard materials, the end parts of the connecting pipes 45 are provided with rubber covers, and the rubber covers are fastened and connected with the end parts of the connecting pipes 45 through threads, and be equipped with the sealing washer on the inner wall of rubber cover, two connecting pipes 45 just in time correspond each other with the position of giving oil pipe 43, and peg graft the installation between two connecting pipes 45 of this department and the oil pipe 43 to fasten through the fastener, the fastener can select fastening clip or fastening fasteners such as fastening sticky tape for use.

The main body of the protection component 3 comprises a sheet metal shell 31 arranged in the middle of the whole component, an annular carrying auxiliary structure 32 at one end part and an oil pipe restraining component at the other end part, the annular carrying auxiliary structure 32 is fixed on the outer wall of the sheet metal shell 31 in a welding mode, the sheet metal shell 31 is of a cylindrical structure, the pipeline connecting and mounting component 4 is arranged on one side of the annular carrying auxiliary structure 32, the thread of the outer wall of the connecting piece 42 is matched and connected with the thread on the inner wall of the sheet metal shell 31, the oil pipe restraining component comprises a clip-shaped accommodating cavity 33, an annular oil pipe support 34 and an oil pipe clamping belt 37, the clip-shaped accommodating cavity 33 is welded on the outer wall of the sheet metal shell 31 in a welding mode, an annular accommodating groove 36 is formed between the sheet metal shell 31 and the clip-shaped accommodating cavity 33, the accommodating groove 36 is used for accommodating oil pipes, and the annular oil pipe support 34 is installed on the inner wall of the sheet metal shell 31 in a welding mode, be equipped with the about hole 35 of evenly distributed's oil pipe on the annular oil pipe support 34, the effect of the about hole 35 of annular oil pipe support 34 and oil pipe is arranged and spacing to oil pipe, avoids oil pipe more in disorder, and the part of oil pipe upper end overlength is coiled in the inside of holding tank 36 through the mode of spiraling, has set up the oil pipe cassette tape 37 on the inner wall that the chamber 33 was held to the shape of returning, and oil pipe cassette tape 37 holds the chamber 33 with returning the shape and is the integrated into one piece structure, oil pipe cassette tape 37 is last to have set up evenly distributed's bayonet socket 38, and the inner wall of bayonet socket 38 is handled through dull polish technology, and the tip card of oil pipe is in the inside of bayonet socket 38.

The working principle of the embodiment is as follows: in this embodiment, the scheme of embodiment 1 is optimized, because the air amount inside the reduction box 1 is not reduced when oil is pumped, the air inside the reduction box 1 is compressed when oil is pumped, if the process requirement is that the amount of grease added inside the reduction box 1 is relatively large, or other grease tests are performed, the method in embodiment 1 has certain defects, the grease adding work is affected by the internal pressure of the reduction box 1, if the pressure is too large, the oil pumping work may be stopped, because the grease is not added due to the too large pressure, although this situation occurs relatively rarely, the oil pumping efficiency is reduced due to the pressure difference, therefore, the embodiment combines the action of the air pumping device to pump the air inside the reduction box 1, so as to keep the inside of the reduction box 1 in a negative pressure state, the end of the ventilation pipeline 47 arranged at the inner side of the connecting piece 42 is connected with an external air pumping device through a pipeline, the gas in the reduction box body 1 after the two box covers are combined is pumped out under the action of air pumping equipment, a pressure monitoring instrument is arranged on the air pumping equipment to monitor the pressure in an air pumping pipeline, namely, the pressure in the two box covers of the reduction box body 1 is monitored, the air tightness of the reduction box body 1 can be detected through the method, the reduction box body 1 is pumped with oil after being in a negative pressure state, the reduction box body 1 is firstly arranged on an oil pumping auxiliary equipment main body 2 during the oil pumping operation, the flange plate 13 and the fastening piece 41 are fixed under the action of bolts, the flange plate 13 and the fastening piece 41 are provided with corresponding flange mounting holes and flange butt joint mounting holes 48, and the protection component 3 mainly protects components arranged in the reduction box body, and the protective component 3 also plays a role of supporting the whole oil pumping auxiliary equipment main body 2, the protective component 3 can be placed on an operation table top and also can be vertically installed on a processing line body along with the reduction box body 1, the annular carrying auxiliary structure 32 is arranged so as to facilitate the transportation of the oil pumping auxiliary equipment main body 2 and ensure that an operator keeps the stability of the oil pumping auxiliary equipment main body 2 in the oil adding operation, the annular carrying auxiliary structure 32 is grasped by two hands so as to avoid the movement or collapse of the oil pumping auxiliary equipment main body 2, the oil adding operation can be carried out after the installation, when oil is added, a switch of the oil well pump 54 is turned on to electrify the equipment, the input end of the oil well pump 54 is connected to the equipment containing the oil outside through an oil pipe, the output end of the oil well is connected to the ventilation pipeline 47, then the oil is pumped to the inside of the reduction box body 1 under the action of the oil pump, and a flow meter is installed on the equipment containing the oil outside, according to the process requirement, quantitative grease is pumped into the reduction box body 1, wherein a valve is preferably arranged on an oil pipe connected between the output end of the oil well pump 54 and the vent pipeline 47, because the flow of the grease can be controlled through the valve, the grease in the oil pipe is prevented from leaking to equipment, then the oil pumping is finished, the oil pipe connected to the oil well pump 54 is removed after the oil pumping is finished, and if the valve is arranged on the oil pipe connected between the output end of the oil well pump 54 and the vent pipeline 47, the valve is closed.

Example 3, direct addition of grease in conventional mode:

referring to fig. 3, a first method for adding grease to a reduction gearbox of an electric forklift power system comprises the following steps: firstly, horizontally placing a reduction box body 1 on a line body to ensure that the box body is in a horizontal state; adding grease into the reduction box body 1 through an oil pump or an oil filling funnel; and step three, closing the two box covers and sealing the reduction box body 1.

A second method for adding grease to a reduction gearbox of a power system of an electric forklift: step one, closing the two box covers and sealing the reduction box body 1; step two, vertically placing the reduction box body 1 on a wire body to ensure that the box body is in a vertical state; and step three, adding grease into the reduction box body 1 through an oil pump or an oil filling funnel.

In the method, the reduction box body 1 is a component of a power system of an electric forklift, wherein the side surface of the reduction box body 1 is used for mounting a driving motor and an oil pump motor, the reduction box body 1 comprises a reduction box cover 11, a reduction box inner cavity 12 and a flange plate 13, the reduction box body 1 is fixed by two parts of box cover combination through the action of bolts, the reduction box body 1 is sealed through a sealing ring, the sealing performance of the reduction box body 1 is kept through the action of glue, the using performance of the box body is improved, in the invention, the box cover of the upper part is removed, in order to better observe the condition and the specific structure inside the reduction box body 1, the box cover of the lower part is stored, the flange plate 13 is arranged at the end part of the reduction box cover 11, the flange plate 13 and the reduction box cover 11 are integrally formed through a die, and a differential mechanism of a power system driving assembly is mounted at the middle position of the inner side of the flange plate 13, the differential mechanism is arranged on a flange plate 13 through the action of a bearing seat, the bearing seat is composed of a fixed part and a movable part, the fixed part is of an integrated structure with the flange plate 13, the movable part is fixed on the fixed part through bolts, the differential mechanism is arranged on the bearing seat through a rotating shaft and a bearing, a reduction box inner cavity 12 is arranged on the inner side of a reduction box cover 11, a gear shaft structure of the reduction box is arranged inside the reduction box inner cavity 12, and the reduction box inner cavity 12 is used for containing grease for lubricating a gear shaft piece.

The oil pumping effect was analyzed in conjunction with the operating methods of examples 1-3:

in embodiment 3, the method for adding grease is obviously different from the methods in embodiments 1 and 2, the process for adding grease obviously requires two to three manual aids, grease is easy to overflow, the influence on the workshop environment is large, although the processing steps are small, the overall working efficiency is low, the method in embodiment 1 is obviously superior to embodiment 3, the oil pumping process can be completed by only one manual work, the oil pumping is stable, the grease is not easy to overflow, but the grease adding work is influenced by the internal pressure of the reduction box 1, if the pressure is too large, the oil pumping work may be stopped, because the pressure is too large, the grease cannot be added, although the situation is small, the oil pumping efficiency is reduced due to the pressure difference, the oil pumping method in embodiment 2 is further optimized and improved for the oil pumping method in embodiment 1, and the air in the reduction box 1 is pumped by combining the action of the air pumping equipment, keep 1 inside negative pressure state of reducing gear box like this, carry out the operation of pumping oil again after 1 inside negative pressure state of reducing gear box, this kind of mode can also detect reducing gear box 1's gas tightness, and the pumping oil effect obviously promotes.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a be used for electronic fork truck driving system reducing gear box pump oil auxiliary assembly, includes reduction box (1), pump oil auxiliary assembly main part (2) and air extractor equipment, reduction box (1) is the subassembly of electronic fork truck's driving system, reduction box (1) includes reduction box lid (11), reducing gear box inner chamber (12) and flange dish (13), and reduction box (1) is fixed through the effect of bolt by the case lid combination of two parts, the tip of reduction box lid (11) has set up flange dish (13), and flange dish (13) and reduction box lid (11) are through mould integrated into one piece, have set up reducing gear box inner chamber (12) in the inboard of reduction box lid (11), characterized in that, pump oil auxiliary assembly main part (2) includes protection component (3), tube coupling installation component (4) and oil pump subassembly (5);

the pipeline connecting and mounting assembly (4) comprises a fastening piece (41) and a connecting piece (42), the fastening piece (41) and the connecting piece (42) are of an integrally formed structure, the middle part of the fastening piece (41) and the middle part of the connecting piece (42) are separated by a partition plate, the fastening piece (41) and the connecting piece (42) are also of an integrally formed structure, external threads are arranged on the outer wall of the connecting piece (42) and are mounted on the protective assembly (3) through the connecting piece (42), through holes for mounting air pipelines (47) are arranged in the middle positions of the fastening piece (41) and the connecting piece (42), the end parts of the air pipelines (47) arranged on the inner side of the connecting piece (42) are connected with external air extractor equipment through pipelines, the pipeline connecting and mounting assembly (4) is arranged on an oil supply pipeline (43), two oil supply pipelines (43) are arranged, one end of the oil supply pipeline (43) penetrates through the partition plate and extends to the inner side of the fastening piece (41), the other end of the oil feeding pipeline (43) is arranged on the inner side of the connecting piece (42), and the oil feeding pipeline (43) is inserted on the partition board;

the protection assembly (3) comprises a sheet metal shell (31) arranged in the middle of the whole assembly, an annular carrying auxiliary structure (32) at one end part and an oil pipe restraining assembly at the other end part, wherein the annular carrying auxiliary structure (32) is fixed on the outer wall of the sheet metal shell (31) in a welding mode, the pipeline connecting and mounting assembly (4) is arranged on one side of the annular carrying auxiliary structure (32), and threads on the outer wall of the connecting piece (42) are matched and connected with threads on the inner wall of the sheet metal shell (31);

the oil pump component (5) comprises a support bracket (51), an oil pump motor component (53) and an oil pump (54), the oil pump component (5) is arranged inside the protection component (3), the supporting bracket (51) is of an annular structure, the supporting bracket (51) is arranged on the inner wall of the protection component (3) under the action of a screw, the supporting bracket (51) is arranged at the position of the sheet metal shell (31), the end surface of the supporting bracket (51) is provided with an oil pump motor component (53), the oil pump motor component (53) is arranged on the end surface of the supporting bracket (51) under the action of a fixed bracket, the output end of the oil pump motor assembly (53) is provided with an oil pump (54), the output end of the oil pump motor assembly (53) is in transmission connection with the oil pump (54), and the oil pump (54) is fixedly installed on the outer wall of the oil pump motor assembly (53) through screws.

2. The auxiliary oil pumping equipment for the reduction gearbox of the power system of the electric forklift is characterized in that a differential mechanism of a driving assembly of the power system is installed in the middle of the inner side of the flange plate (13), the differential mechanism is installed on the flange plate (13) through a bearing seat, the bearing seat is composed of a fixed part and a movable part, the fixed part is of an integrally formed structure with the flange plate (13), the movable part is fixed on the fixed part through bolts, the differential mechanism is installed on the bearing seat through a rotating shaft and a bearing, a gear shaft structure of the reduction gearbox is installed inside an inner cavity (12) of the reduction gearbox, and the inner cavity (12) of the reduction gearbox is used for containing grease for lubricating a gear shaft.

3. The auxiliary oil pumping device for the reduction gearbox of the power system of the electric forklift as recited in claim 1, wherein an air extraction device mounting structure (46) is provided inside the fastening member (41), the air extraction device mounting structure (46) is fixedly connected with the inner wall of the fastening member (41) through a screw, and a pipeline on the air extraction device mounting structure (46) is communicated with the air duct (47).

4. The auxiliary oil pumping equipment for the reduction gearbox of the power system of the electric forklift is characterized in that an air extraction equipment assembly (49) is installed on the end face of an air extraction equipment installation structure (46), the air extraction equipment assembly (49) is connected with the air extraction equipment installation structure (46) through screws, and a flange butt joint installation hole (48) is formed in the lip portion of the fastener (41).

5. The auxiliary device for pumping oil for the reduction gearbox of the power system of the electric forklift as recited in claim 1, wherein a sealing ring is arranged at the joint of the oil feeding pipeline (43) and the partition plate, the pipeline connecting and mounting assembly (4) is provided with an annular oil pipe (44), a connecting pipe (45) is arranged on one side surface of the annular oil pipe (44), the connecting pipe (45) is communicated with the inside of the annular oil pipe (44), and the oil feeding pipeline (43), the annular oil pipe (44) and the connecting pipe (45) are all pipes made of hard materials.

6. The auxiliary oil pumping equipment for the reduction gearbox of the power system of the electric forklift is characterized in that the number of the connecting pipes (45) of the pipeline connecting and mounting assembly (4) is six, ox horn pipes are mounted at the end parts of the two connecting pipes (45), the two connecting pipes (45) are used for being connected with an oil feeding pipeline (43), the two connecting pipes (45) are spare interfaces, rubber covers are arranged on the spare interfaces, and the rubber covers are fixedly connected with the end parts of the connecting pipes (45) through threads.

7. The oil pumping auxiliary device for the reduction gearbox of the power system of the electric forklift as defined in claim 1, wherein the oil pipe restraint assembly comprises a clip-shaped accommodation cavity (33), an annular oil pipe support (34) and an oil pipe clamp (37), the clip-shaped accommodation cavity (33) is welded on the outer wall of the sheet metal shell (31) in a welding mode, oil pipe restraint holes (35) are uniformly distributed in the annular oil pipe support (34), the oil pipe restraint holes (35) are used for arranging and limiting the oil pipe, the annular oil pipe support (34) is installed on the inner wall of the sheet metal shell (31) in a welding mode, the oil pipe clamp (37) is arranged on the inner wall of the clip-shaped accommodation cavity (33), and the oil pipe clamp (37) and the clip-shaped accommodation cavity (33) are of an integrally formed structure.

8. The auxiliary oil pumping equipment for the reduction gearbox of the power system of the electric forklift truck as defined in claim 7, wherein the oil pipe clamp belt (37) is provided with evenly distributed bayonets (38), the inner walls of the bayonets (38) are treated by a sanding process, and the end part of the oil pipe is clamped inside the bayonets (38).

9. The oil pumping auxiliary device for the reduction gearbox of the power system of the electric forklift is characterized in that an annular accommodating groove (36) is formed between the sheet metal shell (31) and the clip-shaped accommodating cavity (33), the accommodating groove (36) is used for accommodating an oil pipe, and an overlong part at the upper end of the oil pipe is coiled inside the accommodating groove (36) in a spiral mode.

10. The auxiliary oil pumping equipment for the reduction gearbox of the power system of the electric forklift as defined in claim 1, wherein the support bracket (51) is provided with oil pipe through holes (52), the oil pipe through holes (52) are distributed at positions on two sides of the oil well pump (54) and used for fixing and guiding an oil pipe connected with the oil well pump (54), and the output end and the input end of the oil well pump (54) are externally connected with the oil pipe.