CN213802679U

CN213802679U - Explosion-proof electric hoist

Info

Publication number: CN213802679U
Application number: CN202022847576.5U
Authority: CN
Inventors: 陈金辉
Original assignee: Zhejiang Tonnemax Hoist & Crane Machinery Co ltd
Current assignee: Zhejiang Tonnemax Hoist & Crane Machinery Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-07-27
Anticipated expiration: 2030-12-02

Abstract

The utility model provides an explosion-proof electric block belongs to hoisting equipment technical field. The lubricating device solves the problems that the existing steel wire rope is poor in lubricating effect and large in friction force. The main shaft of explosion-proof machine and the one end axial fixity of winding roller in this explosion-proof electric block connect, wire rope's one end and winding roller fixed connection, wire rope's the other end passes couple and electric block shell links firmly, the upper end of the inner wall of electric block shell is provided with the moist oil duct of bar, the length direction along the moist oil duct of bar has interval distribution's oil drip hole on this moist oil duct of bar, the upper end of the outer wall of electric block shell has the oil storage tank that is the cylinder of level setting, be provided with oil pipe between oil storage tank and the electric block shell, be provided with the reposition of redundant personnel structure on the moist oil duct of bar, the lubricating oil that flows into in the moist oil duct of bar carries out comprehensive lubrication through the reposition of redundant personnel structure by the moist oil drip hole of bar moist oil duct to wire rope. The utility model discloses it is lubricated effectual, wire rope receive and releases frictional force little at the winding of winding roll.

Description

Explosion-proof electric hoist

Technical Field

The utility model belongs to the technical field of hoisting equipment, a explosion-proof electric block is related to.

Background

The explosion-proof electric hoist is explosion-proof hoisting equipment which is set and manufactured according to the latest explosion-proof standard in China, is arranged on a crown block and a gantry crane, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is widely applied to places such as industrial and mining enterprises, storage docks and the like. The electric hoist generally comprises a motor, a transmission mechanism, a brake or a reduction gearbox, a winding drum or a chain wheel, a steel wire rope, a hook device and the like.

The explosion-proof electric block who uses at present does not set up the lubricated structure who is used for the wire rope lubrication in, and is inconvenient when in-service use lubricates wire rope, leads to wire rope frictional force great, increases motor load, also reduces the lifting speed of couple simultaneously, and structural stability is poor, uses inconveniently.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, the wire rope of convenience in to the electric block shell carries out abundant lubrication, and is lubricated effectual, can increase explosion-proof motor life's explosion-proof electric block.

The purpose of the utility model can be realized by the following technical proposal: an explosion-proof electric hoist comprises an electric hoist shell, an explosion-proof motor, a winding roller, a steel wire rope and a hook, wherein the explosion-proof motor is fixedly arranged at one end of the electric hoist shell, the winding roller is rotatably arranged inside the electric hoist shell, a main shaft of the explosion-proof motor is fixedly connected with one end of the winding roller in the axial direction, one end of the steel wire rope is fixedly connected with the winding roller, and the other end of the steel wire rope penetrates through the hook and is fixedly connected with the electric hoist shell, and the explosion-proof electric hoist is characterized in that a bar-shaped lubricating oil passage is arranged at the upper end of the inner wall of the electric hoist shell and is distributed above the winding roller in parallel, oil dripping holes distributed at intervals are formed in the bar-shaped lubricating oil passage along the length direction of the bar-shaped lubricating oil passage, an oil storage tank of a horizontally-arranged air cylinder is arranged at the upper end of the outer wall of the electric hoist shell, and an oil pipe is arranged between the oil storage tank and the electric hoist shell, this oil storage box and electric block shell pass through the oil pipe intercommunication, connect in the oil feed end of the oil pipe of the outer wall of electric block shell just to the moist oil duct of bar, when the lubricating oil in the oil storage box will be deposited in the cylinder drive is extruded, this lubricating oil passes through in the moist oil duct of oil pipe entering bar, the moist oil duct of bar on be provided with the reposition of redundant personnel structure, the lubricating oil that flows into in the moist oil duct of bar carries out comprehensive lubrication to the wire rope on the winding roller through the oil drip hole of the moist oil duct of bar of reposition of redundant personnel structure.

This explosion-proof electric block is provided with the moist oil duct of bar mainly in the upper end of the inner wall of electric block shell, is provided with the reposition of redundant personnel structure on the moist oil duct of bar, leads the drainage through the reposition of redundant personnel structure and carries out comprehensive lubrication to the wire rope on the wire winding roller, and lubricated effect is better, and the couple is when going up and down to go up and down, and frictional force is little, avoids the motor load, indirectly increases the life of motor, and structural stability is good.

In the explosion-proof electric block, four oil dripping holes are arranged and distributed at intervals along the length direction of the strip-shaped lubricating passage. The purpose of setting up like this makes the wire rope of winding roller can carry out comprehensive lubrication, increases lubricated effect.

In foretell explosion-proof electric block, reposition of redundant personnel structure including the reposition of redundant personnel uide way, the reposition of redundant personnel uide way be the horizontality and set firmly on the moist oil duct of bar, the both ends of reposition of redundant personnel uide way are located the top of the oil drip hole at the both ends of moist oil duct of bar respectively, the middle part of this reposition of redundant personnel uide way is provided with the opening, the diameter of this opening is less than the diameter of oil pipe's oil inlet end, when the reposition of redundant personnel uide way is fixed on the moist oil duct of bar, this lubricating oil gets into the two oil drip hole departments at the middle part of moist oil duct of bar from the opening flow direction of lubricating oil part in the moist oil duct of bar through oil pipe, another part lubricating oil is by the reposition of redundant personnel uide way guide flow to the oil drip hole department at the both ends of moist oil duct of bar. Lubricating oil direction drainage stable in structure, convenient to use, the wire rope lubrication effect of winding roller is better.

In the above explosion-proof electric block, the shunting guide channel extends towards both ends with the circulation hole as the center to form inclined guide surfaces, the inclined guide surfaces are distributed in an inclined manner from inside to outside, and the other part of the lubricating oil flows to the oil dripping holes at both ends of the strip-shaped lubricating oil channel from the inclined guide surfaces of the shunting guide channel in a guiding manner. The purpose of setting up like this is to help the drainage direction of lubricating oil, and the drainage effect is better.

In foretell explosion-proof electric block, the outer wall of electric block shell on have the vertical plug connection that upwards sets up, oil pipe's one end have and form the axial with oil pipe and lean on the portion of cup jointing that leans on the step, oil pipe's the portion of cup jointing go up the cover and be equipped with the hoop, oil pipe's the portion of cup jointing cup joint and lock through the hoop on plug connection again, oil pipe's the portion of cup jointing and plug connection between be provided with rubber seal ring. The purpose of setting up like this is convenient for the sealing connection of oil pipe's one end and electric block shell, convenient assembling.

In foretell explosion-proof electric block, deposit the oil tank on be provided with out the oil pipe joint, the oil pipe joint on threaded connection have the nut that has the throat portion, the throat portion of nut and the oil pipe joint between be provided with rubber seal, when the oil pipe other end wears to locate in the oil pipe joint of depositing the oil tank, the nut screw fastening extrudees rubber seal to deformation, this rubber seal elastic sealing supports to prevent that oil pipe from breaking away from in the oil pipe joint of depositing the oil tank axially by the outer wall in oil pipe's one end. The purpose of setting up like this is the sealing connection who makes things convenient for oil pipe's the other end and oil storage tank, convenient assembling.

In the explosion-proof electric hoist, the oil pipe is in an L shape horizontally placed. The oil pipe is made of metal pipes, and the purpose of the arrangement is to facilitate the assembly of the oil pipe.

Compared with the prior art, the explosion-proof electric hoist has the advantages that: structural design is reasonable, simple, and the wire rope of convenience in to the electric block shell carries out abundant lubrication, and is lubricated effectual, and wire rope is little at winding roll coiling receive and release frictional force, and the couple is stable at the ascending decline of wire rope, explosion-proof machine long service life, convenient to use.

Drawings

Fig. 1 is a schematic sectional structure diagram of the explosion-proof electric hoist.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic sectional structural view of the assembly of the strip-shaped lubricating passage in the explosion-proof electric block.

In the figure, 1, an electric hoist shell; 2. an explosion-proof motor; 3. a winding roller; 4. a wire rope; 5. hooking; 6. a strip-shaped lubricating oil duct; 7. an oil drip hole; 8. an oil storage tank; 9. an oil pipe; 10. a diversion guide way; 11. a flow-through hole; 12. a plug-in connector; 13. a socket joint part; 14. a hoop; 15. a rubber seal ring; 16. an oil outlet pipe joint; 17. a nut; 18. a rubber seal ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the explosion-proof electric hoist mainly comprises an electric hoist housing 1, an explosion-proof motor 2, a winding roller 3, a steel wire rope 4 and a hook 5, wherein the explosion-proof motor 2 is fixedly arranged at one end of the electric hoist housing 1, the winding roller 3 is rotatably arranged inside the electric hoist housing 1, the main shaft of the explosion-proof motor 2 is axially and fixedly connected with one end of a winding roller 3, one end of a steel wire rope 4 is fixedly connected with the winding roller 3, the other end of the steel wire rope 4 passes through a hook 5 to be fixedly connected with an electric hoist shell 1, the upper end of the inner wall of the electric hoist shell 1 is provided with a strip-shaped lubricating oil duct 6, the strip-shaped lubricating oil duct 6 is distributed above the winding roller 3 in parallel, the strip-shaped lubricating oil passage 6 is provided with oil dripping holes 7 which are distributed at intervals along the length direction of the strip-shaped lubricating oil passage 6, and when in actual manufacturing, four oil dripping holes 7 are formed, and the four oil dripping holes 7 are distributed at intervals along the length direction of the strip-shaped lubricating oil duct 6; the upper end of the outer wall of electric block shell 1 has the oil storage tank 8 that is the cylinder of level setting, be provided with oil pipe 9 between oil storage tank 8 and the electric block shell 1, this oil storage tank 8 and electric block shell 1 pass through oil pipe 9 intercommunication, connect in the oil feed end of the oil pipe 9 of the outer wall of electric block shell 1 just to the moist oil duct of bar 6, when the lubricating oil in the oil storage tank 8 is extruded in the cylinder drive, this lubricating oil passes through in oil pipe 9 gets into the moist oil duct of bar 6, be provided with the reposition of redundant personnel structure on the moist oil duct of bar 6, the lubricating oil that flows into in the moist oil duct of bar 6 carries out comprehensive lubrication through the steel wire rope 4 on the winding roller 3 by the oil drip hole 7 of the moist oil duct of bar 6 of reposition of redundant personnel structure.

In actual manufacturing, the specific implementation of the flow dividing structure is as follows: the lubricating oil distributor mainly comprises a shunting guide way 10, wherein the shunting guide way 10 is fixedly arranged on a strip-shaped lubricating oil duct 6 in a horizontal state, two ends of the shunting guide way 10 are respectively positioned above oil dripping holes 7 at two ends of the strip-shaped lubricating oil duct 6, a circulation hole 11 is arranged in the middle of the shunting guide way 10, the diameter of the circulation hole 11 is smaller than that of the oil inlet end of an oil pipe 9, when the shunting guide way 10 is fixed on the strip-shaped lubricating oil duct 6, the part of lubricating oil entering the strip-shaped lubricating oil duct 6 through the oil pipe 9 flows to the two oil dripping holes 7 at the middle of the strip-shaped lubricating oil duct 6 from the circulation hole 11, and the other part of lubricating oil is guided by the shunting guide way 10 to flow to the oil dripping holes 7 at two ends of the strip-shaped lubricating oil duct 6; specifically, the method comprises the following steps: the shunting guide channel 10 extends towards two ends by taking the circulation hole 11 as a center to form inclined guide surfaces, the inclined guide surfaces are distributed in an inclined mode from inside to outside, and the other part of lubricating oil flows to the oil dripping holes 7 at two ends of the strip-shaped lubricating oil channel 6 through the guide of the inclined guide surfaces of the shunting guide channel 10.

During actual manufacturing, the outer wall of the electric hoist shell 1 is provided with a vertically upward plug-in connector 12, one end of the oil pipe 9 is provided with a sleeve-connection part 13 which forms an axial abutting step with the oil pipe 9, the sleeve-connection part 13 of the oil pipe 9 is sleeved with a hoop 14, the sleeve-connection part 13 of the oil pipe 9 is sleeved on the plug-in connector 12 and locked by the hoop 14, and a rubber sealing ring 15 is arranged between the sleeve-connection part 13 of the oil pipe 9 and the plug-in connector 12; an oil outlet pipe joint 16 is arranged on the oil storage tank 8, a screw cap 17 with a necking part is connected to the oil outlet pipe joint 16 in a threaded manner, a rubber sealing ring 18 is arranged between the necking part of the screw cap 17 and the oil outlet pipe joint 16, when the other end of the oil pipe 9 penetrates through the oil outlet pipe joint 16 of the oil storage tank 8, the screw cap 17 is screwed and fastened to extrude the rubber sealing ring 18 to be deformed, and the rubber sealing ring 18 is elastically and hermetically abutted against the outer wall of one end of the oil pipe 9 to prevent the oil pipe 9 from axially separating from the oil outlet pipe joint 16 of the oil storage tank 8; in actual manufacture, the oil pipe 9 is in the shape of an L placed horizontally.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. An explosion-proof electric hoist comprises an electric hoist shell (1), an explosion-proof motor (2), a winding roller (3), a steel wire rope (4) and a hook (5), wherein the explosion-proof motor (2) is fixedly arranged at one end of the electric hoist shell (1), the winding roller (3) is rotatably arranged inside the electric hoist shell (1), a main shaft of the explosion-proof motor (2) is fixedly connected with one end of the winding roller (3) in an axial direction, one end of the steel wire rope (4) is fixedly connected with the winding roller (3), the other end of the steel wire rope (4) penetrates through the hook (5) to be fixedly connected with the electric hoist shell (1), and the explosion-proof electric hoist is characterized in that a bar-shaped lubricating oil duct (6) is arranged at the upper end of the inner wall of the electric hoist shell (1), the bar-shaped lubricating oil ducts (6) are distributed above the winding roller (3) in parallel, oil dripping holes (7) are distributed at intervals along the length direction of the bar-shaped lubricating oil ducts (6) on the bar-shaped lubricating oil ducts (6), the upper end of the outer wall of electric block shell (1) have the oil tank (8) of depositing that is the cylinder of level setting, deposit and be provided with oil pipe (9) between oil tank (8) and electric block shell (1), should deposit oil tank (8) and electric block shell (1) and pass through oil pipe (9) intercommunication, connect in the oil feed end of oil pipe (9) of the outer wall of electric block shell (1) just to bar lubricated oil duct (6), when the cylinder drive will deposit the lubricating oil in oil tank (8) and be extruded, this lubricating oil passes through oil pipe (9) and gets into in bar lubricated oil duct (6), bar lubricated oil duct (6) on be provided with the reposition of redundant personnel structure, the lubricating oil that flows into in bar lubricated oil duct (6) carries out comprehensive lubrication to wire rope (4) on winding roller (3) through reposition of redundant personnel structure by dripping oilhole (7) of bar lubricated oil duct (6).

2. An explosion-proof electric block as claimed in claim 1, characterized in that there are four oil drip holes (7), and the four oil drip holes (7) are distributed at intervals along the length direction of the strip-shaped lubricating passage (6).

3. An explosion-proof electric hoist according to claim 2, characterized in that the shunting structure comprises shunting guide channels (10), the shunting guide channel (10) is fixedly arranged on the strip-shaped lubricating oil duct (6) in a horizontal state, two ends of the shunting guide channel (10) are respectively positioned above the oil dripping holes (7) at two ends of the strip-shaped lubricating oil duct (6), the middle part of the shunting guide channel (10) is provided with a circulation hole (11), the diameter of the circulation hole (11) is smaller than that of the oil inlet end of the oil pipe (9), when the shunting guide channel (10) is fixed on the strip-shaped lubricating oil duct (6), the lubricating oil enters the strip-shaped lubricating oil duct (6) through the oil pipe (9), part of the lubricating oil flows to the two oil dripping holes (7) in the middle of the strip-shaped lubricating oil duct (6) from the circulation hole (11), and the other part of the lubricating oil flows to the oil dripping holes (7) at the two ends of the strip-shaped lubricating oil duct (6) through the guide of the shunt guide channel (10).

4. An explosion-proof electric block as claimed in claim 3, characterized in that the branch guide channel (10) extends towards both ends with the flow hole (11) as the center to form inclined guide surfaces which are distributed obliquely from inside to outside, and the other part of the lubricating oil is guided by the inclined guide surfaces of the branch guide channel (10) to flow to the oil dripping holes (7) at both ends of the strip-shaped lubricating oil channel (6).

5. The explosion-proof electric hoist according to claim 4, characterized in that the outer wall of the electric hoist housing (1) is provided with a vertically upward-arranged plug-in connector (12), one end of the oil pipe (9) is provided with a sleeve-connection part (13) which is axially abutted against the step with the oil pipe (9), the sleeve-connection part (13) of the oil pipe (9) is sleeved with a hoop (14), the sleeve-connection part (13) of the oil pipe (9) is sleeved on the plug-in connector (12) and locked by the hoop (14), and a rubber sealing ring (15) is arranged between the sleeve-connection part (13) of the oil pipe (9) and the plug-in connector (12).

6. The explosion-proof electric block as claimed in claim 5, characterized in that the oil storage tank (8) is provided with an oil outlet pipe joint (16), the oil outlet pipe joint (16) is connected with a screw cap (17) with a necking part in a threaded manner, a rubber sealing ring (18) is arranged between the necking part of the screw cap (17) and the oil outlet pipe joint (16), when the other end of the oil pipe (9) penetrates through the oil outlet pipe joint (16) of the oil storage tank (8), the screw cap (17) is screwed and fastened to extrude the rubber sealing ring (18) to be deformed, and the rubber sealing ring (18) is elastically and tightly abutted against the outer wall of one end of the oil pipe (9) to prevent the oil pipe (9) from axially disengaging from the oil outlet pipe joint (16) of the oil storage tank (8).

7. An explosion-proof electric block as claimed in claim 6, characterized in that the oil pipe (9) is in the shape of a horizontally placed L.