CN108638825B

CN108638825B - Three-jaw type universal engine mounting bracket and three-jaw mechanism for mounting engine

Info

Publication number: CN108638825B
Application number: CN201810630687.5A
Authority: CN
Inventors: 马典云; 季宏伟
Original assignee: Jac Heavy Duty Construction Machine Co ltd
Current assignee: Anhui Jianghuai Heavy Construction Machinery Co ltd
Priority date: 2018-06-19
Filing date: 2018-06-19
Publication date: 2021-04-23
Anticipated expiration: 2038-06-19
Also published as: CN108638825A

Abstract

The invention discloses a three-jaw universal engine mounting bracket and a three-jaw mechanism for mounting an engine, wherein the three-jaw mechanism comprises: a support body provided on the mounting frame; the first fixing claw is hinged to a first position of the supporting body and used for being connected with a first machine hole of an installation object; the second fixing claw is hinged to a second position of the supporting body and is used for being connected with a second machine hole of the mounting object; and the locking claw is hinged to the middle position between the first position and the second position on the supporting body and is used for being connected with a third machine hole of the mounting object, and the three-claw mechanism forms a stable plane multi-rod mechanism after being mounted on the mounting object. The three-jaw universal engine mounting bracket can be suitable for mounting a large number of engines with different models, different supporting modes and different inclination angles, thereby greatly improving the generalization of parts, improving the production efficiency and reducing the cost.

Description

Three-jaw type universal engine mounting bracket and three-jaw mechanism for mounting engine

Technical Field

The invention relates to the field of installation of power transmission systems such as forklift engines, gearboxes and the like, in particular to a three-jaw universal engine installation support and a three-jaw mechanism for engine installation.

Background

In the design process of the forklift, the installation of power transmission system components such as an engine, a gearbox and the like is required:

1. the mounting holes of different engines are distributed in different types and sizes. The patterns are roughly divided into four rectangular holes, three symmetrical holes, three single-side holes, three eccentric holes and the like (see fig. 10). The difference in size is larger, the minimum pitch may be only 40mm, and the maximum pitch may reach more than 200 mm;

2. different vehicle types need different installation modes, and can be a horizontal support type, a double-V-shaped support type and the like;

3. different vehicle types, according to the working condition requirement, the installation inclination angle of the engine may be different, possibly 0 °, possibly 2 °, 2.5 °, 3 °, 3.5 °, and maximally 5 °.

The distribution form of the engine mounting holes can also be mirror images, such as a left trapezoid and a right trapezoid, a left triangle and a right triangle and the like.

Combining the above three cases, the present inventors recognized that: the engine models of the forklift are dozens, and the engine supports can be hundreds, so that the efficiency of organization and production is greatly reduced. If the engine support which can meet the requirements of a large number of engine supports with different models, different supporting modes and different inclination angles can be invented, the universalization of parts can be greatly improved, the production efficiency is improved, and the cost is reduced.

Disclosure of Invention

The invention aims to provide a three-jaw mechanism for engine installation, which is used for meeting installation work of a large number of engines of different models.

The invention also aims to provide a three-jaw type universal engine mounting bracket to meet the mounting operation of a large number of engines with different models, different supporting modes and different inclination angles.

To this end, the present invention provides, in one aspect, a three-jaw mechanism for engine mounting, comprising: a support; the first fixing claw is hinged to a first position of the supporting body and used for being connected with a first machine hole of an installation object; the second fixing claw is hinged to a second position of the supporting body and is used for being connected with a second machine hole of the mounting object; and the locking claw is hinged to the middle position between the first position and the second position on the supporting body and is used for being connected with a third machine hole of the mounting object, and the three-claw mechanism forms a stable plane multi-rod mechanism after being mounted on the mounting object.

Further, the above-mentioned mounting object is an engine, a transmission, a hydraulic motor, or a driving motor.

Further, the first machine hole, the second machine hole and the third machine hole are matched and matched with each other, and the matching relation is selected from any one of symmetrical three holes, single-side three holes, eccentric three holes, rectangular four holes, eccentric four holes and trapezoidal four holes.

Further, the pivot axis of the support body is arranged coaxially with the rotation axis of the locking pawl.

Furthermore, the locking claw comprises a first plate body, a hinge hole formed in the first end of the first plate body, a connecting hole formed in the second end of the first plate body, and an installation sleeve matched with the connecting hole.

According to another aspect of the present invention there is provided a three-jaw universal engine mounting bracket comprising a three-jaw mechanism for a three-jaw universal engine mounting bracket according to the above description and a mounting bracket for attitude adjustment of the three-jaw mechanism.

Further, the mounting bracket comprises a first adjusting bracket, wherein the supporting body of the three-jaw mechanism is pivotally and adjustably arranged on the first adjusting bracket for adapting to the inclination angle of the engine.

Further, the mounting rack further comprises a second adjusting rack, wherein the first adjusting rack is pivotally and adjustably arranged on the second adjusting rack and used for adapting to engine arrangement modes, and the engine arrangement modes comprise horizontal arrangement modes, inclined arrangement modes and V-shaped arrangement modes.

Further, the mounting frame further comprises a shock absorber for connecting to a vehicle frame, wherein the second adjusting frame is connected to the shock absorber.

Furthermore, a copper-based graphite mosaic bearing is arranged on the second adjusting frame.

The three-jaw mechanism for engine installation can adapt to installation of a large number of engines or similar components of different models. The three-jaw universal engine mounting bracket can be suitable for mounting a large number of engines with different models, different supporting modes and different inclination angles, thereby greatly improving the generalization of parts, improving the production efficiency and reducing the cost.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a planar multi-bar mechanism without stability;

FIG. 2 is a schematic diagram of a planar four bar linkage according to the present invention for a three jaw universal engine mount bracket;

FIG. 3 is a schematic perspective view of a three-jaw universal engine mount according to the present invention;

FIGS. 4a and 4b are schematic views of a first stationary jaw and a locking jaw of a three-jaw universal engine mounting bracket according to the present invention;

FIG. 5 is a first schematic structural view of a support bracket of the three-jaw universal engine mounting bracket according to the invention;

FIG. 6 is a schematic view of the mounting state of the three-jaw universal engine mounting bracket according to the invention under a mounting condition I (symmetrical three-hole type);

FIG. 7 is a schematic view of the mounting state of the three-jaw universal engine mounting bracket under a second mounting condition (eccentric three-hole type);

FIG. 8 is a schematic view of the mounting state of the three-jaw universal engine mounting bracket according to the invention under the mounting condition three (single-side three-hole type);

FIG. 9 is a second perspective view of a three-jaw universal engine mount according to the present invention; and

FIG. 10 is a schematic representation of various distribution patterns of engine mounting holes in the prior art, wherein A: a rectangular four-hole type; b: a single-side three-hole type; c: a symmetrical three-hole type; d: an eccentric four-hole type; e: a trapezoidal four-hole type; f: eccentric three-hole type.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Fig. 1-9 illustrate some embodiments according to the invention.

The main principle of the three-jaw universal engine mounting bracket is derived from the stability of a plane multi-rod mechanism.

As shown in fig. 1: the rod a (frame) is a fixed rod, the rods b, c and d are connected with the rod a to form a four-bar mechanism, the four-bar mechanism has no stability, the mechanism can rotate at will, and the possible rotating state or limit position of the mechanism is related to the lengths of the rods a, b, c and d.

The invention introduces a fifth rod e and a frame fixing point F on the basis of the four-bar mechanism, and as shown in figure 2, if the length of the e-bar and the position of the point F are determined, the mechanism is locked, namely, only has a unique state. Given the fixed lengths of the b, c, d, e bars, the change in the relative position of three points A, B, F on the frame determines the state of the stable multi-bar mechanism.

The invention designs a three-jaw mechanism according to the principle, which mainly comprises a first fixed jaw, a second fixed jaw, a locking jaw and a supporting body, can be installed at different rack positions A, B, F and only has a unique stable state.

The invention discloses a three-jaw universal engine mounting bracket, which comprises a three-jaw mechanism and a mounting bracket suitable for being connected to a frame.

In one embodiment, as shown in fig. 3, the three-jaw universal engine mounting bracket is constructed in detail as follows:

the frame 10 is part of an engine and is shown schematically in a square.

The three-jaw mechanism includes:

first fixing claw 21: is connected with a machine hole of the engine;

second fixing jaw 22: the first fixing claw is connected with the other machine hole of the engine, and can be designed the same as the first fixing claw, so that the universality is further improved;

the locking pawl 23: the locking mechanism is connected with a third machine hole of the engine and plays a role in locking the whole mechanism; and

support 24: the two fixed claws and the locking claw are hinged at the same time, and the supporting function is realized. The first fixing claw and the second fixing claw are positioned at two ends of the supporting body 24, and the locking claw is positioned in the middle of the supporting body 24.

The mounting bracket includes:

first adjusting bracket 25: can be rotated to adapt to different engine inclination angles;

second adjusting bracket 26: is connected with the first adjusting frame and the shock absorber; and

the damper 27: the shock absorption device is arranged on the frame and plays a shock absorption role on the engine.

Preferably, the first fixed jaw 21 is hinged to the supporting body 24 by means of a self-lubricating bearing 28, and the second fixed jaw 22 and the locking jaw 23 are also hinged to the supporting body 24 by means of a self-lubricating bearing (hidden in fig. 3).

Preferably, a copper-based graphite insert bearing 29 is provided on the second adjuster bracket 26 for supporting and lubricating the structure of the first and second adjuster brackets.

In one embodiment, as shown in fig. 4a, the locking pawl 23 includes a first plate 231, a hinge hole 232 formed at a first end of the first plate, a connecting hole 233 formed at a second end of the first plate, and a mounting sleeve 234 fitted into the connecting hole.

In one embodiment, as shown in fig. 4b, the first fixing jaw 21 includes a second plate 211, a hinge hole 212 formed at a first end of the second plate, and a mounting sleeve 213 fixedly disposed at a second end of the second plate. The first fixing claw and the second fixing claw may be the same as or different from the locking claw.

In one embodiment, as shown in fig. 5, the supporting body 24 includes a third plate 241, a first hinge shaft 242 disposed at a first end of the third plate, a second hinge shaft 243 disposed at a second end of the third plate, and a third hinge shaft 244 disposed at a middle position of the third plate, wherein the first hinge shaft, the second hinge shaft, and the third hinge shaft are respectively sleeved with a self-lubricating bearing 28.

Preferably, the pivot axis of the support body is arranged coaxially with the rotation axis of the locking pawl. Specifically, the third hinge shaft 244 is a massive hollow shaft that, in conjunction with the locking pawl, also serves to mount the pivot shaft 30 of the first adjustment bracket (as shown in FIG. 9).

The three-jaw universal engine mounting bracket has the following technical advantages:

one, strong adaptability

The three-jaw universal engine mounting bracket can be suitable for mounting a large number of engines with different models, different supporting modes and different inclination angles, thereby greatly improving the universalization of parts, improving the production efficiency and reducing the cost.

Taking the symmetrical three holes as an example, assume that the engine mounting hole is a symmetrical three-hole type (see fig. 6): the universal engine mount is adaptable regardless of variations in A, B dimensions within certain limits, and fig. 6 shows the mounting conditions (only three-jaw mechanism is shown) for a dimensions 40mm, 60mm, 80mm, 100mm, 120mm, 140mm, 180mm, respectively.

Adaptability of three-jaw universal engine mount bracket in eccentric three-hole condition exactly the same as in fig. 6 (see fig. 7): the universal engine mount is adaptable regardless of the A, B size, and fig. 7 shows the mounting conditions (only three-jaw mechanism is shown) when the a sizes are respectively 80mm, 90mm, 100mm, 110mm, 120mm and 130 mm.

Adaptability of three-jaw universal engine mounted in single-side three-hole state exactly the same as fig. 6 (see fig. 8): the universal engine mount is adaptable regardless of the A, B size, and fig. 8 shows the mounting conditions (only three-jaw mechanism is shown) when the a sizes are respectively 80mm, 100mm, 120mm, 140mm, 160mm and 180 mm.

Through the analysis, the same three-claw universal engine can adapt to the installation of three symmetrical holes, three unilateral holes, three eccentric holes and various sizes, and has strong size adaptability. The properties of the rectangular four-hole type three-hole type are the same as those of the single-side three-hole type; the properties of the eccentric four-hole type three-hole type and the eccentric three-hole type are the same; the properties of the trapezoidal four-hole type three-hole type are the same as those of the symmetrical three-hole type or the unilateral three-hole type; all the above six kinds can be adapted.

The mounting structure of the second, first adjustment bracket can accommodate a variety of different engine inclinations, as shown in fig. 9, while the second adjustment bracket can accommodate engine arrangements (horizontal, inclined, V-shaped). By applying the structure, hundreds of engine brackets can be reduced to be within 3.

Third, shock absorption

Primary damping: the three-jaw mechanism consisting of the three jaws and the supporting body has certain shock absorption and buffering functions when the whole mechanism is impacted and vibrated due to the hinge connection;

secondary damping: and when the second adjusting bracket is connected with the automobile body, the shock absorber is installed, and the shock absorption effect is achieved on the installed room of an engine and the like.

When the mechanism is installed, the first fixing claw, the second fixing claw and the supporting frame are connected and installed on the engine, the locking claws are installed through adjustment, the mechanism is locked at the moment, and then the adjusting frame, the installing frame, the shock absorber and other accessory structures are installed to complete installation. The assembly process is simple and efficient.

The three-jaw universal engine mounting bracket can be used for mounting an engine and also can be used for mounting and supporting various large parts such as a gearbox, a hydraulic motor, a driving motor and the like, and modularization and universalization are further improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-jaw universal engine mounting bracket is characterized by comprising a three-jaw mechanism for mounting an engine and a mounting bracket for adjusting the posture of the three-jaw mechanism,

the three-jaw mechanism for engine mounting includes:

a support;

the first fixing claw is hinged to a first position of the supporting body and used for being connected with a first machine hole of an installation object;

the second fixing claw is hinged to a second position of the supporting body and is used for being connected with a second machine hole of the mounting object; and

a locking claw hinged to the support body at a middle position between the first position and the second position for connection with a third machine hole of the mounting object,

wherein the three-jaw mechanism is installed on the installation object to form a stable plane multi-rod mechanism,

the mounting frame comprises a first adjustment frame, wherein the support body of the three-jaw mechanism is pivotally adjustably arranged on the first adjustment frame for adapting to the engine pitch angle.

2. The three-jaw universal engine mounting bracket of claim 1 wherein said mounting bracket further comprises a second adjustment bracket, wherein said first adjustment bracket is pivotally adjustably disposed on said second adjustment bracket for accommodating engine configurations including horizontal, angled and V-shaped configurations.

3. The three-jaw universal engine mounting bracket of claim 2 wherein said mounting bracket further comprises a shock absorber for attachment to a vehicle frame, wherein said second adjustment bracket is attached to said shock absorber.

4. The three-jaw universal engine mounting bracket according to claim 2, wherein the second adjustment bracket is provided with copper-based graphite insert bearings.

5. The universal three-jaw engine mounting bracket according to claim 1, wherein said mounting object is an engine, a gearbox, a hydraulic motor or a drive motor.

6. The three-jaw universal engine mounting bracket according to claim 1, wherein the first, second and third bores are configured in any relationship selected from the group consisting of symmetrical three bores, single-sided three bores, eccentric three bores, rectangular four bores, eccentric four bores, and trapezoidal four bores.

7. A three-jaw universal engine mounting bracket as set forth in claim 1 wherein said support body pivot axis is disposed coaxially with said locking jaw pivot axis.

8. The three-jaw universal engine mounting bracket of claim 1, wherein said locking jaw comprises a first plate, a hinge hole formed in a first end of said first plate, a connection hole formed in a second end of said first plate, and a mounting sleeve adapted to said connection hole.