Counterweight device for working machine and working machine

Abstract

The utility model discloses a counterweight device for a working machine and the working machine, and the counterweight device comprises a shell used for being arranged on a frame of the working machine, and an installation space is formed in the shell; the driving part comprises a driving part and a mounting rod part, the driving part is arranged in the mounting space, the mounting rod part is inserted into the driving part and can move in the vertical direction under the driving action of the driving part, and a mounting end capable of penetrating out of the mounting space downwards is formed on the mounting rod part; and the balancing weight assembly comprises a plurality of balancing weights, and the balancing weights are detachably arranged on the mounting end. The counterweight device for the operation machine is simple in structure and beneficial to improving the stability of the whole operation machine.

Description

Technical Field

[0001] This application belongs to the field of work machinery technology, specifically relating to a counterweight device for work machinery and work machinery. Background Technology

[0002] Due to the harsh working conditions and varying material densities during operation, even when transporting the same volume of material, slight differences in mass can occur. Furthermore, uneven working surfaces can compromise the overall stability of the machine. Therefore, these machines are typically equipped with counterweights to enhance stability, increase load-bearing capacity, and improve shock resistance under different conditions. However, existing counterweights have a fixed weight, which may limit the machine's performance to the density of the transported material. Secondly, modern construction machinery is highly sensitive to road conditions; in poor conditions with large volumes of transported material, a fixed counterweight results in poor overall stability and an inability to adapt to changing circumstances. Utility Model Content

[0003] The purpose of this application is to provide a counterweight device for operating machinery and the operating machinery itself, wherein the counterweight device for operating machinery has a simple structure and is conducive to improving the stability of the operating machinery as a whole.

[0004] To achieve the above objectives, a first aspect of this application provides a counterweight device for operating machinery, the counterweight device comprising:

[0005] The housing is used to mount the machine on the frame, and the interior of the housing forms an installation space;

[0006] The driving component includes a driving part and a mounting rod part. The driving part is disposed in the installation space, and the mounting rod part is inserted into the driving part and can move vertically under the driving action of the driving part. The mounting rod part has a mounting end that can extend downward out of the installation space.

[0007] The counterweight assembly includes multiple counterweights, which are detachably mounted on the mounting end.

[0008] In the embodiments of this application, the mounting rods are distributed vertically, and the height of the mounting space is greater than or equal to the height of the mounting rods.

[0009] In the embodiments of this application, at least two counterweights in the counterweight assembly have different weights.

[0010] In the embodiments of this application, concave force-applying cavities are formed on both opposite vertical sidewalls of the counterweight.

[0011] In embodiments of this application, the driving component further includes:

[0012] The first limiting part is provided on the mounting rod and located above the driving part;

[0013] The second limiting part is provided on the mounting rod and located below the drive part.

[0014] In embodiments of this application, the drive unit is detachably mounted on the vertical sidewall of the housing.

[0015] In embodiments of this application, the counterweight device further includes a locking member detachably disposed on the mounting rod and used to lock the counterweight block.

[0016] In the embodiments of this application, there are multiple locking members, which are distributed adjacently on the mounting rod.

[0017] In the embodiments of this application, an inspection port is formed on the top wall of the housing to facilitate the maintenance of the drive component, and the counterweight device also includes a cover plate, which is detachably disposed on the housing and used to cover the inspection port.

[0018] A second aspect of this application provides a work machine, which includes a frame and the aforementioned counterweight device for the work machine, the counterweight device being disposed at the rear end of the frame.

[0019] As can be seen from the above technical solution, the counterweight device includes a housing, a driving component, and a counterweight assembly. The housing is used to be mounted on the frame of the operating machinery, and an installation space is formed inside the housing. The driving component includes a driving part and a mounting rod part. The driving part is disposed in the installation space, and the mounting rod part is inserted into the driving part and can move vertically under the driving action of the driving part. An installation end is formed on the mounting rod part that can extend downward out of the installation space. The counterweight assembly includes multiple counterweights, and the counterweights are detachably mounted on the mounting end. This counterweight device has a simple structure and is easy to operate. It is equipped with multiple counterweight blocks, each of which is detachably mounted on the installation end. Operators can install an appropriate number of counterweight blocks on the installation end according to actual counterweight requirements, resulting in higher accuracy of the counterweight weight. This further optimizes the stability of the working machinery under complex working conditions and different attachment working conditions, maximizing the load-bearing capacity under complex working conditions. It can effectively alleviate or avoid the problem of stability fluctuations when the material density on the working machinery increases or the road conditions become complex. It can balance or dissipate the instability of the working machinery caused by harsh working conditions. In addition, when the working conditions change and different types of attachments need to be replaced, this counterweight device can also alleviate some of the problems of poor overall stability of the working machinery caused by the weight difference between attachments.

[0020] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the counterweight device in the embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the mounting rod in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the loader in the embodiments of this application.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Housing; 101-Installation space; 102-Cover plate; 2-Drive component; 201-Drive unit; 202-Mounting rod unit; 203-Mounting end; 204-First limiting part; 205-Second limiting part; 206-Connecting part; 3-Counterweight assembly; 301-Counterweight; 302-Force application chamber; 4-Locking component; 5-Loader. Detailed Implementation

[0027] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0028] The embodiments of this application provide a novel counterweight device for operating machinery, such as... Figure 1 As shown, the counterweight device includes:

[0029] The housing 1 is used to be mounted on the frame of the working machinery, and the interior of the housing 1 has an installation space 101.

[0030] The driving component 2 includes a driving part 201 and a mounting rod part 202. The driving part 201 is disposed in the mounting space 101. The mounting rod part 202 is inserted into the driving part 201 and can move vertically under the driving action of the driving part 201. A mounting end 203 is formed on the mounting rod part 202 that can pass downward through the mounting space 101.

[0031] The counterweight assembly 3 includes multiple counterweights 301, which are detachably mounted on the mounting end 203.

[0032] Specifically, the operating machinery in this embodiment can be selected as a loader 5 (e.g., Figure 3As shown), there are two counterweight devices, which are located on the left and right sides of the tail end of the loader 5 (i.e., on both sides of the width direction of the loader 5). The drive unit 2 can be a through-type screw motor. The counterweight device also includes a controller and an operating device. The controller is communicatively connected to the drive unit 2 and the operating device. When gravity compensation is required for the working machinery (such as when the working machinery changes attachments or when loading operations are performed under complex and harsh working conditions, or when the working machinery is in a state of rough road surface with large elevation differences and messy materials), the operator operates the counterweight function button on the operating device. The operating device sends a signal to the controller according to the operated content (such as the duration of the counterweight function button being pressed on the operating device). After receiving the above signal, the controller controls the drive unit 2 to move the mounting rod 202 downward, thereby causing the mounting end 203 to extend downward out of the housing 1. After the mounting end 203 is fully extended, the operator installs an appropriate number of counterweight blocks 301 on the mounting end 203 according to the actual counterweight requirements.

[0033] The counterweight device in this embodiment has a simple structure and is easy to operate. It is equipped with multiple counterweight blocks 301, each of which is detachably mounted on the mounting end 203. The operator can install an appropriate number of counterweight blocks 301 on the mounting end 203 according to the actual counterweight requirements, so as to improve the accuracy of the counterweight weight. This can further optimize the stability of the working machinery under complex working conditions and different attachment working conditions, maximize the load-bearing capacity under complex working conditions, and effectively alleviate or avoid the problem of stability fluctuation when the material density on the working machinery increases or the road conditions are complex. It can balance or dissipate the instability of the working machinery caused by harsh working conditions. In addition, when the working conditions change and different types of attachments need to be replaced, this counterweight device can also alleviate some of the problems of poor overall stability of the working machinery caused by the weight difference between attachments.

[0034] In one embodiment of this application, the mounting rod 202 is distributed vertically, and the height of the mounting space 101 is greater than or equal to the height of the mounting rod 202. This arrangement allows the controller to control the drive unit 201 to drive the mounting rod 202 to move vertically upward when the working machinery does not need to use the counterweight device (such as when the working machinery is performing loading operations in a relatively good working environment or when the road surface is flat and the material is constant), so as to store the mounting rod 202 in the mounting space 101. This avoids the mounting rod 202 from being damaged by collision with external objects during the operation of the working machinery, and also improves the safety of the counterweight device.

[0035] In one embodiment of this application, at least two counterweights 301 in the counterweight assembly 3 have different weights. In this embodiment, each counterweight 301 is set to a different weight, which makes it convenient for the operator to select an appropriate number and weight of counterweights 301 to install on the mounting end 203 according to the actual counterweight requirements. For example, when the stability is good, a smaller counterweight 301 can be installed for counterweighting, and when the stability is poor, a larger counterweight 301 can be installed for counterweighting (or a smaller counterweight 301 and a larger counterweight 301 can be installed together on the mounting end 203). The above settings are conducive to further improving the counterweight accuracy, meeting the weight compensation requirements under various working conditions, and further expanding the application range of the counterweight device.

[0036] Furthermore, the shape of the counterweight 301 can be rectangular, circular, triangular, or polygonal, or other shapes, without limitation.

[0037] In one embodiment of this application, recessed force-applying cavities 302 are formed on both opposite vertical sidewalls of the counterweight 301. In this embodiment, the cross-section of the force-applying cavity 302 is rectangular, and the opening of the force-applying cavity 302 faces outward. The force-applying cavity 302 facilitates the operator to apply force to the counterweight 301 for handling or installation, improving the ease of use of the counterweight device. Furthermore, a gripping cavity is also formed on the counterweight 301, which is recessed upward from the top wall of the force-applying cavity 302 or downward from the bottom wall of the force-applying cavity 302. The gripping cavity facilitates the operator to handle the counterweight 301 with one hand, further improving the ease of use of the counterweight device.

[0038] In one embodiment of this application, such as Figure 2 As shown, the drive unit 2 also includes:

[0039] The first limiting part 204 is provided on the mounting rod part 202 and located above the driving part 201;

[0040] The second limiting part 205 is provided on the mounting rod part 202 and located below the driving part 201.

[0041] Specifically, the first limiting part 204 is annular and located at the top of the mounting rod part 202, and the second limiting part 205 is also annular. When either the first limiting part 204 or the second limiting part 205 contacts the driving part 201, the other is vertically spaced from the driving part 201. The first limiting part 204 is provided to limit the downward movement distance of the mounting rod part 202, preventing the mounting rod part 202 from moving downward too much and disengaging from the driving part 201; the second limiting part 205 is provided to limit the upward movement distance of the mounting rod part 202, preventing the mounting rod part 202 from moving upward too much and damaging the housing 1.

[0042] In one embodiment of this application, the counterweight device further includes a locking member 4 detachably mounted on the mounting rod 202 for locking the counterweight 301. Specifically, in this embodiment, the mounting rod 202 is rod-shaped (i.e., the mounting end 203 is also rod-shaped), and the counterweight 301 has a mounting hole for the mounting end 203 to pass through vertically. In this embodiment, the locking member 4 is a locking nut that can form a threaded engagement with the mounting end 203. After the operator installs the counterweight 301 on the mounting end 203, the locking member is then installed on the mounting end 203 and positioned below the counterweight 301 to prevent the counterweight 301 from falling off the mounting end 203.

[0043] In one embodiment of this application, there are multiple locking members 4, which are in close contact with the mounting rod portion 202.

[0044] Specifically, in this embodiment, the locking element 4 can be two. After the operator installs the counterweight 301 on the mounting end 203, the two locking nuts are installed on the mounting end 203 and located below the counterweight 301. Setting multiple locking elements 4 can further improve the installation reliability of the counterweight 301 and avoid the situation where the counterweight 301 falls off due to one locking element 4 accidentally detaching from the mounting end 203.

[0045] Furthermore, after the operator has installed multiple locking parts 4, if the operator observes that there is still a gap between the top wall of the counterweight 301 at the highest position and the bottom wall of the housing 1, the operator can control the mounting rod 202 to move upward through the controller until the top wall of the counterweight 301 at the highest position is tightly attached to the bottom wall of the housing 1, which can further increase the installation stability of the counterweight device during use.

[0046] In one embodiment of this application, the drive unit 201 is detachably disposed on the vertical sidewall of the housing 1. Specifically, one side of the drive unit 201 is a plane that can fit against the vertical sidewall of the housing 1, and connecting portions 206 are formed on both sides of the plane (the connecting portions 206 and the drive unit 201 are integrated into one unit). The connecting portions 206 can be detachably connected to the vertical sidewall of the housing 1 by means of bolt assemblies. The above arrangement allows the drive unit 2 to be directly installed together with the housing 1 without the need for an additional mounting base for the drive unit 2, saving the space occupied inside the housing 1 and reducing the number of parts of the counterweight device.

[0047] In one embodiment of this application, an inspection port is formed on the top wall of the housing 1 to facilitate the maintenance of the drive unit 2. The counterweight device also includes a cover plate 102, which is detachably disposed on the housing 1 and used to cover the inspection port.

[0048] Specifically, the counterweight device also includes a power source disposed in the installation space 101 and used to provide power to the drive component 2. In this embodiment, the power source can be a battery. The operator can maintain or repair the drive component 2 and the power source inside the installation space 101 through the inspection port on the top wall of the housing 1. For example, the operator can add grease to the drive component 2 through the inspection port. The above-mentioned configuration improves the convenience of maintenance or repair of the drive component 2 and the power source. Furthermore, the cover plate 102 is detachably connected to the top wall of the housing 1 by bolt assembly, which makes it easy for the operator to open the cover plate 102 to maintain or repair the drive component 2 and the power source inside the space.

[0049] Another embodiment of this application provides a working machine, which includes a frame and a counterweight device for the working machine as described in the above embodiment, the counterweight device being disposed at the rear end of the frame.

[0050] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A counterweight device for a work machine, characterized by, The counterweight device comprises: a housing (1) arranged on a frame of a working machine, an installation space (101) being formed in the housing (1); a driving member (2) comprising a driving part (201) arranged in the installation space (101) and an installation rod part (202) inserted on the driving part (201) and vertically movable under the driving of the driving part (201), the installation rod part (202) being formed with an installation end (203) downwardly penetrating the installation space (101); a counterweight block assembly (3) comprising a plurality of counterweight blocks (301) detachably arranged on the installation end (203).

2. The counterweight arrangement for a working machine according to claim 1, characterized in that, The installation rod part (202) is vertically distributed, and a height of the installation space (101) is greater than or equal to a height of the installation rod part (202).

3. The counterweight arrangement for a working machine according to claim 1, characterized in that, The counterweight block assembly (3) comprises at least two counterweight blocks (301) with different weights.

4. The counterweight arrangement for a working machine according to claim 1, characterized in that, The counterweight block (301) is formed with a concave force applying cavity (302) on each of two opposite vertical side walls.

5. The counterweight device for a work machine according to Claim 1, characterized by, The driving member (2) further comprises: a first limiting part (204) arranged on the installation rod part (202) and above the driving part (201); a second limiting part (205) arranged on the installation rod part (202) and below the driving part (201).

6. The counterweight device for a work machine according to Claim 1, characterized by The driving part (201) is detachably arranged on a vertical side wall of the housing (1).

7. The counterweight device for a work machine according to Claim 1, characterized by The counterweight device further comprises a locking member (4) detachably arranged on the installation rod part (202) and used for locking the counterweight block (301).

8. The counterweight arrangement for a working machine according to claim 7, characterized by The locking member (4) is in close contact with the installation rod part (202).

9. The counterweight arrangement for a working machine according to any of claims 1 - 8, characterized in that, A top wall of the housing (1) is formed with an inspection opening for facilitating the inspection of the driving member (2), and the counterweight device further comprises a cover plate (102) detachably arranged on the housing (1) and used for covering the inspection opening.

10. A work machine characterized by, The working machine comprises a frame and the counterweight device for the working machine according to any one of claims 1-9, and the counterweight device is arranged at a tail end of the frame.

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