CN205046594U - Equipment and scraper - Google Patents

Abstract

The utility model discloses a working device and a scraper, relates to the field of construction machinery and is used for solving the problem of partial load of the working device. The working device includes: a rocker arm, a connecting rod, a spacer, a pin shaft and a clearance adjustment piece. The rocker arm and the connecting rod are respectively located on both sides of the spacer, and the clearance adjusting part is clamped between the connecting rod and the spacer, and the pin shaft connects the rocker arm, the spacer and the connecting rod; the dimension of the clearance adjusting part along the length direction of the pin shaft I can adjust it. During assembly, the gap adjustment piece and the spacer are assembled on the connecting rod by the nylon connecting pin, and then the rocker arm and the connecting rod are connected together by the pin shaft, which ensures convenient assembly. The above-mentioned technical scheme can eliminate the problem of excessive clearance between the connecting rod and the rocker arm caused by the machining error through the gap adjustment member, effectively curbing the occurrence of the unbalanced load condition of the working device, ensuring the safe and stable operation of the working device; The trend of increased wear under load conditions prolongs the life of the working device.

Description

Work equipment and scrapers

technical field

The utility model relates to the field of engineering machinery, in particular to a working device and a scraper.

Background technique

The working device is the device for shoveling materials of the underground scraper. Its structure and performance directly affect the working size and performance parameters of the whole machine. The working device directly affects the production efficiency, workload, power and motion characteristics of the underground scraper. Digging effect and working cycle time under working conditions.

The structure of existing work device is as follows: bearing pin is fixed on the rocking arm by hexagon socket head cap screw, and connecting rod is hinged by axle sleeve, bearing pin and rocking arm, and spacer is arranged between connecting rod and rocking arm.

The inventor found that at least the following problems exist in the prior art: there are many parts at the hinge point of the working device, the assembly is complicated and difficult, and machining errors are prone to occur, resulting in gaps between the spacer sleeve, the connecting rod, and the rocker arm, which may easily cause work. The partial load of the device leads to serious wear of the spacer, which affects the working efficiency and life of the working device.

Utility model content

One of the objectives of the utility model is to provide a working device and a scraper for optimizing the structure of the working device.

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

The utility model provides a working device, which includes: a rocker arm, a connecting rod, a spacer, a pin shaft and a gap adjusting member;

The rocker arm and the connecting rod are respectively located on both sides of the spacer, the gap adjuster is sandwiched between the connecting rod and the spacer, and the pin shaft connects the rocker arm, the spacer The spacer is connected with the connecting rod;

The size of the gap adjusting member along the length direction of the pin shaft can be adjusted.

In an optional embodiment, the gap adjusting member includes an adjusting shim, the number of the adjusting shim is at least one, and the thickness of each of the adjusting shims is the same or different.

In an optional embodiment, the connecting rod is provided with a counterbore, the spacer is correspondingly provided with a first through hole, and each of the adjusting gaskets is correspondingly provided with a second through hole;

The connecting rod, each of the adjusting washers and the spacer are connected by a connecting pin.

In an optional embodiment, the connecting pin is a nylon pin; the nylon pin is interference fit with both the spacer and the connecting rod.

In an optional embodiment, the connecting pin is a tapered structure.

In an alternative embodiment,

The length of the connecting pin is less than the sum of the depth of the counterbore, the length of the first through hole and the length of the second through hole;

Moreover, the length of the connecting pin is greater than the sum of the depth of the counterbore and the length of the second through hole.

In an optional embodiment, there are at least two counterbores, and each counterbore is evenly distributed around the pin hole on the connecting rod.

The utility model further provides a scraper, which includes the working device provided by any technical solution of the utility model.

Based on the above technical solution, the embodiment of the utility model can at least produce the following technical effects: the above technical solution can eliminate the problem of excessive gap between the connecting rod and the rocker arm caused by the machining error through the above technical solution, and effectively prevent the unbalanced load of the working device. The occurrence of working conditions ensures the safe and stable operation of the working device; avoids the tendency of aggravated wear under the unbalanced load condition, and prolongs the life of the working device.

Description of drawings

The drawings described here are used to provide a further understanding of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a partial structural schematic diagram of a working device provided by an embodiment of the utility model;

Figure 2 is a partial enlarged schematic view of Figure 1;

Fig. 3 is a schematic diagram of the connecting rod structure of the working device provided by the embodiment of the present invention;

Fig. 4 is a schematic diagram of the structure of the spacer of the working device provided by the embodiment of the present invention;

Fig. 5 is a schematic structural diagram of the adjustment shim of the working device provided by the embodiment of the present invention.

Fig. 6 is a schematic flowchart of the assembly method of the working device disclosed in the embodiment of the present invention.

Reference signs:

1. Pin shaft; 2. Hexagon socket head screw; 3. Rocker arm;

4. Spacer; 5. Connecting pin; 6. Adjusting gasket;

7. Connecting rod; 8. A-type sealing ring; 9. Shaft sleeve;

10. Hexagon socket head cap screw; 11. End cover; 12. Shaft sleeve;

41, the first through hole; 61, the second through hole; 71, the pin hole;

72, countersunk hole.

detailed description

The technical solution provided by the utility model will be described in more detail below in conjunction with FIGS. 1 to 6 .

Referring to Fig. 1 to Fig. 5, the embodiment of the present utility model provides a working device, which includes: a rocker arm 3, a connecting rod 7, a spacer 4, a pin shaft 1 and a gap adjusting member. The rocker arm 3 and the connecting rod 7 are respectively located on both sides of the spacer 4 , the gap regulator is sandwiched between the connecting rod 7 and the spacer 4 , and the pin shaft 1 connects the rocker 3 , the spacer 4 and the connecting rod 7 . The size of the gap adjusting member along the length direction of the pin shaft 1 can be adjusted so as to meet the installation requirements of any gap between the rocker arm 3 and the connecting rod 7 caused by machining errors or other reasons.

The gap adjusting member can adopt a composite structure so that its size along the length direction of the pin shaft 1 can be adjusted; or adopt a telescopic structure.

The above-mentioned technical solution can eliminate the problem of excessive gap between the connecting rod 7 and the rocker arm 3 caused by the machining error through the gap adjustment member, effectively curb the occurrence of the unbalanced load condition of the working device, and ensure the safe and stable operation of the working device; avoid The trend of increased wear under eccentric load conditions is eliminated, and the life of the working device is prolonged.

Here, the gap adjusting member specifically includes an adjusting shim 6, and there is at least one adjusting shim 6, and the thickness of each adjusting shim 6 is the same or different.

Referring to FIG. 1 to FIG. 5 , the connecting rod 7 is provided with a countersunk hole 72 , the spacer 4 is correspondingly provided with a first through hole 41 , and each adjusting washer 6 is correspondingly provided with a second through hole 61 . Connecting rod 7 , each adjusting washer 6 and spacer 4 are connected by connecting pin 5 . By installing the spacer 4 and the connecting rod 7 through the connecting pin 5, the hinged structure can be installed conveniently and quickly.

As shown in FIG. 3 , a countersink 72 is drilled at position A on the connecting rod 7 , and countersunk holes 72 are also drilled at symmetrical positions. As shown in FIG. 4 , two first through holes 41 are drilled at position B of the spacer 4 . As shown in FIG. 5 : the second through hole 61 is drilled at the position C of the adjusting gasket 6 with different thicknesses.

As shown in Figure 2: the connecting pin 5 is interference fit with the spacer 4, and the connecting pin 5 is interference fit with the connecting rod 7.

Further, the connecting pin 5 is a nylon pin. Nylon pin all interferes with spacing sleeve 4 and connecting rod 7.

Because the nylon pin is elastic, even if the shaft sleeve 12 and the spacer 4 are worn, the nylon pin will not be broken, and the hinged structure will not be affected because the nylon pin is broken.

As shown in Figure 2: Nylon pin has an interference fit with the spacer 4, and the nylon pin has an interference fit with the connecting rod 7. The nylon pin is tapered, which can prevent the spacer 4 and the adjustment gasket 6 from falling off, ensuring reliable installation. sex.

Here, the connecting pin 5 adopts a tapered structure. The size of one end of the connecting pin 5 close to the connecting rod 7 is large, and the size of the end close to the spacer 4 is small.

Referring to Fig. 2, the length of the connecting pin 5 is less than the sum of the depth of the counterbore 72, the length of the first through hole 41 and the length of the second through hole 61; and, the length of the connecting pin 5 is greater than the depth of the counterbore 72 and The sum of the lengths of the second through holes 61 .

In order to make the installation stable and reliable, there are at least two countersunk holes 72 , and each countersunk hole 72 is evenly distributed around the pin holes 71 on the connecting rod 7 .

As shown in Figures 1, 2, 3, 4, and 5, the hinge structure of the above-mentioned working device is mainly composed of: pin shaft 1, hexagon socket head screw 2, rocker arm 3, spacer sleeve 4, connecting pin 5, adjusting gasket 6, connecting pin Rod 7, A-type sealing ring 8, shaft sleeve 9, hexagon socket head screw 10, end cover 11, shaft sleeve 12 are composed.

The pin shaft 1 is fixed on the rocker arm 3 through the hexagon socket head screw 2, the bushing 12 is embedded in the connecting rod 7, the connecting rod 7 is hinged with the rocker arm 3 through the bushing 12 and the pin shaft 1, and the bushing 9 is embedded in the rocker arm 3 Inside, the end cover 11 is fixed on the rocker arm 3 through the hexagon socket head cap screw 10, the spacer 4 is between the connecting rod 7 and the rocker arm 3, and the A-type sealing ring 8 is installed outside the spacer 4.

As shown in FIG. 3 , a countersunk hole 72 is drilled at position A on the connecting rod 7 . As shown in FIG. 4 : two first through holes 41 are drilled at position B of the spacer 4 . As shown in FIG. 5 : the second through hole 61 is drilled at the position C of the adjusting gasket 6 with different thicknesses.

The above technical solution effectively solves the difficult problem of disassembly and assembly of the hinged structure of the working device, effectively avoids the installation gap at the hinged position, effectively avoids the occurrence of unbalanced load conditions of the working device, and ensures the stable operation of the working device.

Another embodiment of the utility model provides a scraper, which includes the working device provided by any technical solution of the utility model.

Referring to Fig. 6, the utility model discloses an assembly method of a working device, which includes the following steps:

Step S10 , without installing the pin shaft, try to install the rocker arm, the connecting rod, the spacer and the gap adjusting piece, so as to determine the size of the gap adjusting piece required.

Specifically, the gap adjusting member may include one or more adjusting shims, and here determining the required size of the gap adjusting member actually determines the number of required adjusting shims.

Through step S10, the gap between the spacer and the connecting rod can be effectively eliminated, the installation accuracy can be ensured, the unbalanced load of the working device can be effectively reduced, the safe and stable operation of the working device can be ensured, and the service life of the working device can be effectively extended.

Step S20 , connecting the spacer and the gap adjusting member with a determined size to the connecting rod. Specifically, connecting pins can be used to connect.

Connecting the spacer and the gap adjusting piece with the connecting rod firstly can simplify the installation operation of the spacer, so that the spacer can be installed conveniently and quickly.

Step S30, connecting the rocker arm and the connecting rod through a pin shaft.

The assembly method of the working device as above, it also includes the following steps:

Step S40, installing a sealing ring on the outer circular surface of the spacer. Specifically, the sealing ring can be an A-type sealing ring.

The above step S40 may be performed after step S30.

To disassemble the rocker arm 3, connecting rod 7, spacer 4, gap adjusting part and pin shaft 1, only need to remove the pin shaft 1, and then separate the spacer 4, connecting rod 7 and gap adjusting part, and disassemble It is also very convenient.

As shown in Figure 2 and Figure 6: Before installation, without installing the pin shaft 1, try to install the spacer 4, the adjusting gasket 6, the connecting rod 7, and the rocker arm 3, and record the corresponding adjustment gasket 6 quantity. When installing, use the connecting pin 5 to install the corresponding adjusting gasket 6 and the spacer 4 on the connecting rod 7; then use the pin shaft 1 to install the connecting rod 7 and the rocker arm 3 together; Install A-type sealing ring 8 on the surface. The length of the connecting pin 5 is less than the sum of the lengths of the counterbore 71 on the connecting rod 7 , the first through hole 41 on the spacer 4 and the second through hole 61 on the adjusting washer 6 . The above method can install the spacer 4 and the A-type sealing ring 8 conveniently and quickly.

The above technical solution proposes a method for easy installation and disassembly of the hinge structure, which effectively avoids the installation gap at the hinge position, effectively avoids the occurrence of unbalanced load conditions of the working device, and ensures the stable operation of the working device.

In describing the present invention, it should be understood that the terms "central", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal" , "Top", "Bottom", "Inner", "Outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating Or implying that the device or element referred to must have a specific orientation, be constructed and operated for a specific orientation, and thus cannot be construed as limiting the protection content of the present utility model.

If words such as "first" and "second" are used herein to define components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying Description, unless otherwise stated, the above words have no special meaning.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not limit it; although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that: still The specific implementation of the utility model can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solution of the utility model, all of them should be included in the scope of the technical solution claimed by the utility model.

Claims (8)

1. an equipment, is characterized in that, comprising: rocking arm (3), connecting rod (7), spacer (4), bearing pin (1) and gap adjustment part;

Described rocking arm (3) and described connecting rod (7) lay respectively at the both sides of described spacer (4), described gap adjustment part is folded between described connecting rod (7) and described spacer (4), and described rocking arm (3), described spacer (4) are connected with described connecting rod (7) by described bearing pin (1);

Described gap adjustment part can regulate along the size of described bearing pin (1) length direction.

2. equipment according to claim 1, it is characterized in that, described gap adjustment part comprises adjustment pad (6), and the quantity of described adjustment pad (6) is at least one, and the thickness of each described adjustment pad (6) is identical or different.

3. equipment according to claim 2, it is characterized in that, described connecting rod (7) is provided with counter sink (72), the upper correspondence of described spacer (4) offers the first through hole (41), and on each described adjustment pad (6), correspondence offers the second through hole (61); By connecting pin (5), described connecting rod (7), each described adjustment pad (6) and described spacer (4) are connected.

4. equipment according to claim 3, is characterized in that, described connecting pin (5) is nylon pin; Described nylon pin and described spacer (4) and described connecting rod (7) all interference fit.

5. equipment according to claim 3, is characterized in that, described connecting pin (5) is pyramidal structure.

6. equipment according to claim 3, it is characterized in that, the length of described connecting pin (5) is less than the degree of depth of described counter sink (72), the length of described first through hole (41) and the length sum of described second through hole (61); Further, the length of described connecting pin (5) is greater than the degree of depth of described counter sink (72) and the length sum of described second through hole (61).

7. equipment according to claim 3, it is characterized in that, the quantity of described counter sink (72) is at least two, and the pin-and-hole (71) of each described counter sink (72) on described connecting rod (7) is uniformly distributed.

8. a scraper, is characterized in that, comprises the arbitrary described equipment of claim 1-7.