CN218320491U

CN218320491U - Automobile engine conveyer

Info

Publication number: CN218320491U
Application number: CN202222483336.0U
Authority: CN
Inventors: 傅勇刚
Original assignee: Jiashan Handijack Tools Corp
Current assignee: Jiashan Handijack Tools Corp
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-01-17
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses an automobile engine conveyor, which comprises an underframe, an oil pump, a hydraulic cylinder and a bracket; the hydraulic cylinder sequentially comprises a protective sleeve, a primary cylinder barrel and a secondary cylinder barrel from outside to inside, wherein the bottom of the primary cylinder barrel is hermetically connected with a cylinder bottom, the protective sleeve is also fixedly arranged on the cylinder bottom, a hydraulic oil way is arranged in the cylinder bottom, and the hydraulic oil way is communicated with the inside of the primary cylinder barrel and the oil pump; a first-stage piston matched with the first-stage cylinder barrel is arranged in the first-stage cylinder barrel, the top of the first-stage piston is connected with a second-stage cylinder barrel in a sealing mode, and the second-stage cylinder barrel also serves as a first-stage piston rod corresponding to the first-stage cylinder barrel; the utility model discloses a two limit nut, the structure of this kind of extra mechanical type prevents that the pneumatic cylinder from becoming invalid suddenly, avoids the engine to fall suddenly and injures people's the condition emergence by a crashing object, the utility model discloses an even the pneumatic cylinder becomes invalid suddenly, limit nut also can play the effect of the piston rod of support pneumatic cylinder temporarily.

Description

Automobile engine conveyer

Technical Field

The utility model relates to a conveyer field specifically is an automobile engine conveyer.

Background

The hydraulic conveyor is widely applied in the industry fields of automobile maintenance, automobile maintenance and the like, is mainly used for high-position installation and disassembly of automobile gearboxes, engines, drivers and the like, and is an essential lifting and conveying tool in automobile maintenance. For example, in a welding-type conveyor disclosed in CN216730206U, the carriage is maintained at a high position and does not fall down due to the sealing performance of the hydraulic cylinder itself, but a serious accident occurs if the hydraulic cylinder leaks, and therefore, an additional structure is required to ensure that the carriage does not fall down when the hydraulic cylinder leaks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile engine conveyer to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an automobile engine conveyor comprises an underframe, an oil pump, a hydraulic cylinder and a bracket; the oil pump is fixedly arranged at the center of the top of the underframe, the hydraulic cylinder is arranged on one side of the oil pump, and the bracket is fixedly arranged at the top of the oil pump; the hydraulic cylinder sequentially comprises a protective sleeve, a primary cylinder barrel and a secondary cylinder barrel from outside to inside, wherein the bottom of the primary cylinder barrel is hermetically connected with a cylinder bottom, the protective sleeve is also fixedly arranged on the cylinder bottom, a hydraulic oil way is arranged in the cylinder bottom, and the hydraulic oil way is communicated with the inside of the primary cylinder barrel and the oil pump; a first-stage piston matched with the first-stage cylinder barrel is arranged in the first-stage cylinder barrel, the top of the first-stage piston is hermetically connected with a second-stage cylinder barrel, and the second-stage cylinder barrel also serves as a first-stage piston rod corresponding to the first-stage cylinder barrel; the center of the first-stage piston is also provided with a connecting cavity for communicating the first-stage cylinder barrel and the second-stage cylinder barrel, a second-stage piston matched with the second-stage cylinder barrel is arranged in the second-stage cylinder barrel, and the top of the second-stage piston is fixedly connected with a second-stage piston rod; wherein the external screw thread has all been seted up with the outer wall that is used for acting as the second grade cylinder of one-level piston rod to the second grade piston rod, and threaded connection has one-level stop nut and second grade stop nut respectively on second grade cylinder and the second grade piston rod.

Furthermore, the four corners of the bottom frame are fixedly provided with casters for driving the conveyor to move.

Further, the cylinder bottom is fixedly connected with the underframe.

Furthermore, the outer thread of the second-stage cylinder barrel and the first-stage limiting nut can be self-locked, and the outer thread of the second-stage piston rod and the second-stage limiting nut can also be self-locked.

Furthermore, a primary sealing ring and a secondary sealing ring are respectively sleeved on the primary piston and the secondary piston.

Furthermore, the lateral part of the protective sleeve is also rotatably connected with a handle rod which can be used for pulling the whole conveyor.

Compared with the prior art, the beneficial effects of the utility model are that: through two stop nut, the structure of this kind of extra mechanical type prevents that the pneumatic cylinder from becoming invalid suddenly, avoids the engine to fall suddenly and injures people's the condition emergence by a crashing object, the utility model discloses an even the pneumatic cylinder becomes invalid suddenly, stop nut also can play the effect of the piston rod of support pneumatic cylinder temporarily.

Drawings

Fig. 1 is a front view of an automotive engine conveyor.

Fig. 2 is a schematic view of a hydraulic cylinder in an automobile engine conveyor.

Fig. 3 is an elevational view of an automotive engine carrier as extended.

Fig. 4 is a schematic structural diagram of a middle hydraulic cylinder when an automobile engine conveyer is stretched.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 4, an automobile engine conveyor includes a chassis 1, an oil pump 2, a hydraulic cylinder 3, and a bracket 4; the oil pump 2 is fixedly arranged at the center of the top of the chassis 1, the hydraulic cylinder 3 is arranged at one side of the oil pump 2, and the bracket 4 is fixedly arranged at the top of the oil pump 2;

the four corners of the bottom of the underframe 1 are fixedly provided with trundles 5 for driving the conveyor to move;

the hydraulic cylinder 3 is mainly improved, the hydraulic cylinder 3 sequentially comprises a protective sleeve 6, a primary cylinder barrel 7 and a secondary cylinder barrel 8 from outside to inside, wherein the bottom of the primary cylinder barrel 7 is hermetically connected with a cylinder bottom 9, the protective sleeve 6 is fixedly arranged on the cylinder bottom 9, a hydraulic oil way 10 is arranged in the cylinder bottom 9, and the hydraulic oil way 10 is communicated with the inside of the primary cylinder barrel 7 and the oil pump 2; a first-stage piston 11 matched with the first-stage cylinder 7 is arranged in the first-stage cylinder 11, the top of the first-stage piston 11 is connected with a second-stage cylinder 8 in a sealing mode, and the second-stage cylinder 8 also serves as a first-stage piston rod corresponding to the first-stage cylinder; a connecting cavity 12 for communicating the primary cylinder barrel 7 and the secondary cylinder barrel 8 is further formed in the center of the primary piston 11, a secondary piston 13 matched with the secondary cylinder barrel 8 is arranged in the secondary cylinder barrel 8, and a secondary piston rod 14 is fixedly connected to the top of the secondary piston 13;

further, the cylinder bottom 9 is fixedly connected with the underframe 1;

it is worth noting that the outer walls of the secondary piston rod 14 and the secondary cylinder 8 serving as the primary piston rod are both provided with external threads, the secondary cylinder 8 and the secondary piston rod 14 are respectively connected with a primary limit nut 15 and a secondary limit nut 16 in a threaded manner,

specifically, the external thread of the secondary cylinder barrel 8 and the primary limit nut 15 can be self-locked, that is, the lead angle of the external thread of the secondary cylinder barrel 8 is smaller than the equivalent friction angle between the external thread of the secondary cylinder barrel 8 and the primary limit nut 15, and the external thread of the secondary cylinder barrel 8 and the primary limit nut 15 can be self-locked, so that the primary limit nut 15 cannot slide up and down under gravity and single impact, and only a right operator can rotate to move the upper garment; similarly, the outer thread of the secondary piston rod 14 and the secondary limit nut 16 can be self-locked;

specifically, a primary sealing ring 17 and a secondary sealing ring 18 are respectively sleeved on the primary piston 11 and the secondary piston 12;

specifically, the side part of the protective sleeve 6 is also rotatably connected with a handle rod 20, and the handle rod can be used for pulling the whole conveyor;

when the conveyor is used, firstly, the automobile is lifted to a certain height by a column type or scissor type lifting machine; pushing the conveyor below the automobile, lifting the conveyor to a proper position, adjusting the positions of the first-stage limiting nut 15 and the second-stage limiting nut 16 (namely, the lower end of the second-stage limiting nut 16 abuts against the top of the second-stage cylinder barrel 8, and the lower end of the first-stage limiting nut abuts against the top of the first-stage cylinder barrel 7), and detaching the engine to be maintained; pushing the conveyer to a required position, and hanging down the object by a crane for maintenance; after the object is repaired, the object is lifted by a crane and placed in the center of the bracket, the object is tied by a steel chain, and the conveyor is pushed to a proper position under the automobile; and closing the unloading valve, stepping the oil pump to lift the object to a proper position, and installing the object, wherein if the position of the object is not right, the hydraulic conveying lifter can be moved for adjustment.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, or the directions or positional relationships that the skilled person usually understand, which are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Claims

1. An automobile engine conveyor comprises an underframe, an oil pump, a hydraulic cylinder and a bracket; the oil pump is fixedly arranged at the center of the top of the underframe, the hydraulic cylinder is arranged on one side of the oil pump, and the bracket is fixedly arranged at the top of the oil pump; the hydraulic cylinder is characterized by comprising a protective sleeve, a primary cylinder barrel and a secondary cylinder barrel from outside to inside in sequence, wherein the bottom of the primary cylinder barrel is hermetically connected with a cylinder bottom, the protective sleeve is fixedly arranged on the cylinder bottom, a hydraulic oil way is arranged in the cylinder bottom, and the hydraulic oil way is communicated with the inside of the primary cylinder barrel and an oil pump; a first-stage piston matched with the first-stage cylinder barrel is arranged in the first-stage cylinder barrel, the top of the first-stage piston is connected with a second-stage cylinder barrel in a sealing mode, and the second-stage cylinder barrel also serves as a first-stage piston rod corresponding to the first-stage cylinder barrel; a connecting cavity for communicating the primary cylinder barrel and the secondary cylinder barrel is further formed in the center of the primary piston, a secondary piston matched with the secondary cylinder barrel is arranged in the secondary cylinder barrel, and a secondary piston rod is fixedly connected to the top of the secondary piston; wherein the external screw thread has all been seted up with the outer wall that is used for acting as the second grade cylinder of one-level piston rod to the second grade piston rod, and threaded connection has one-level stop nut and second grade stop nut respectively on second grade cylinder and the second grade piston rod.

2. The automobile engine conveyor according to claim 1, wherein casters are fixedly mounted at four corners of a bottom of the chassis for driving the conveyor.

3. The automotive engine carrier of claim 1, wherein said cylinder bottom is fixedly connected to the chassis.

4. The automotive engine conveyor as claimed in claim 1, wherein the second-stage cylinder barrel is self-locking with respect to the first-stage limit nut, and the second-stage piston rod is self-locking with respect to the second-stage limit nut.

5. The automotive engine carrier of claim 1, wherein said primary and secondary pistons are fitted with primary and secondary sealing rings, respectively.

6. The automobile engine carrier of claim 1, wherein said protective sleeve side portion further has a handle bar pivotally connected thereto for pulling said entire carrier via said handle bar.