Counterweight device for lithium battery installation

Abstract

The utility model discloses a counterweight device for mounting a lithium battery, which comprises a mounting shell, and counterweight cavities are arranged on two sides of the mounting shell; the counterweight mechanism comprises a plurality of spherical metal particles for counterweight, the spherical metal particles are mounted in the counterweight cavity in a filling manner, a guide pipe is arranged on the side wall of the counterweight cavity in a penetrating manner, a pressing piece is movably mounted in the guide pipe, one end of the pressing piece extends into the counterweight cavity, and the other end of the pressing piece inclines downwards and is hinged to a push plate; the ends, not hinged to the pressing pieces, of the push plates are hinged to a fixing transverse plate, the fixing transverse plate is fixedly connected with a limiting guide shaft downwards, a fixing sleeve is installed at the bottom of the installation shell, and the limiting guide shaft is movably inserted into the fixing sleeve. The periphery of the fixing sleeve is fixedly sleeved with a spiral spring located between the fixing annular plate and the fixing transverse plate of the fixing sleeve. According to the utility model, a sufficient damping effect can be formed on the basis of not influencing the counterweight function, so that the influence of vibration on the operation stability of the battery module is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery installation, in particular to a counterweight device for lithium battery installation. Background Art

[0002] As lithium-ion batteries become more and more popular in forklift applications, the power environment is changing. Lithium-ion power sources are now able to provide the long-lasting, high performance required for forklift applications. Although lead-acid battery-powered forklifts can meet the application, lead-acid batteries have high maintenance costs, and lead-acid batteries need to be discharged during charging, and there is a potential risk of acid leakage and corrosion. Lithium-ion batteries are maintenance-free, provide excellent performance in both hot and cold environments, and have a long life, so the conversion of lead-acid forklifts to lithium batteries is slowly becoming popular.

[0003] At present, lithium batteries for forklifts generally include a battery mounting shell and a battery module installed in the battery box. In order to adapt to the counterweight problem of the forklift and solve the cumbersome problem of the buckling mechanism of the existing battery module limit end plate and side plate, the bottom side of the battery mounting shell of the existing lithium battery for forklifts is generally fixed with a counterweight, and the battery module limit end plate is directly tightened with a steel-plastic belt. The traditional counterweight device for installing lithium batteries generally includes one or more counterweights arranged side by side. Before installing the lithium battery module, the counterweight needs to be installed at the bottom of the mounting shell. In order to ensure the assembly stability of the counterweight in the battery shell, the existing counterweight device for installing lithium batteries will also be equipped with a counterweight fastening mechanism for fixing the counterweight in the mounting shell.

[0004] The existing counterweight device for lithium battery installation has a single function and has no other use functions except the counterweight effect, resulting in relatively poor adaptability. The forklift itself has relatively large vibrations during operation. In addition, the working environment of the forklift often has problems such as uneven ground or vibration-damping belts, resulting in the forklift often having relatively large vibrations during movement.

[0005] Therefore, the purpose of the present invention is to design a counterweight device for lithium battery installation that can effectively form a sufficient vibration reduction effect without affecting the counterweight function, thereby significantly reducing the impact of the continuous vibration environment on the installation and operating stability of the battery module. Summary of the invention

[0006] In view of the technical problems existing in the above-mentioned prior art, the utility model provides a counterweight device for installing a lithium battery, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0007] The technical solution of the utility model is:

[0008] A counterweight device for installing a lithium battery, comprising

[0009] An installation shell, wherein corresponding counterweight cavities are respectively arranged on both sides of the installation shell, and a battery support plate is fixedly welded to the top of the counterweight cavity;

[0010] The counterweight mechanism comprises a plurality of spherical metal particles for counterweight, which are filled and installed in the counterweight cavity of the installation shell, the side walls of the counterweight cavity are respectively penetrated by corresponding conduits, and corresponding clamping pieces are movably installed in the conduits, one end of the clamping piece extends into the counterweight cavity and is spherically arranged, and the other end of the clamping piece is hingedly connected to a corresponding push plate at an angle downward, and the end of the push plate that is not hinged to the clamping piece is respectively hinged to a corresponding fixed horizontal plate, and a corresponding limiting guide shaft is fixedly connected downward at the center of the bottom end surface of the fixed horizontal plate, and a corresponding fixed sleeve is movably installed at the bottom of the installation shell at a position corresponding to the limiting guide shaft, and the limiting guide shaft can be movably inserted in the fixed sleeve, and a corresponding fixed ring plate is fixedly connected to the outer side of the fixed sleeve, and a corresponding coil spring is fixedly provided on the outer periphery of the fixed sleeve, and the upper and lower ends of the coil spring are respectively fixedly connected to the top surface of the fixed ring plate and the bottom surface of the fixed horizontal plate.

[0011] A mounting tube with an internal threaded hole is fixedly connected to the bottom of the mounting shell at a position corresponding to the fixed sleeve, and an operating hole connected to the mounting tube is provided at the bottom of the mounting shell. The fixed sleeve is movably installed in the mounting tube by threaded connection. A rotating rod with a hexagonal groove on the bottom surface is fixedly welded downwardly at the bottom end of the fixed sleeve, and the rotating rod is located in the mounting tube.

[0012] The bottom end of the rotating rod is located above the bottom of the mounting shell, and the coil spring is located between the fixed ring plate and the fixed transverse plate in a compressed state.

[0013] The guide tube is located in the middle of the side wall of the counterweight chamber of the mounting shell.

[0014] The spherical metal particles used for the counterweight are iron-based spherical particles.

[0015] Advantages of the utility model:

[0016] 1) The utility model makes a completely new and improved design to the traditional counterweight method, by filling the counterweight cavity with spherical metal particles; then, through the coordinated arrangement of the conduit, the clamping piece, the push plate, the fixed cross plate, and the limiting guide shaft, the movable installation of one end of the clamping piece in the counterweight cavity is realized; then, the limiting guide shaft is movably guided and installed through a fixed sleeve arranged at the bottom of the installation shell, and the tightening and buffering installation of the limiting guide shaft is realized through the intervention of a coil spring.

[0017] During use, the normal counterweight requirement is achieved by the weight of the spherical metal particles filled in the counterweight cavity. At the same time, the sufficient vibration reduction effect can be achieved through the friction energy consumption between a large number of spherical metal particles for counterweights. Therefore, without affecting the counterweight, a sufficient vibration reduction effect is effectively formed, thereby greatly reducing the impact of continuous vibration environment on the installation stability of the battery module.

[0018] 2) The most important thing is that when a large vibration occurs, the spherical metal particles used as counterweights can form a small amount of outward push on the clamping parts, so that the spherical metal particles used as counterweights can have more sufficient relative kinetic energy to achieve better friction energy consumption, thereby greatly improving the vibration reduction effect.

[0019] 3) Under the elastic force of the coil spring, the clamping piece can be pressed tightly between the spherical metal particles used for counterweights in real time to prevent the spherical metal particles used for counterweights from being in a loose state due to a small movement of the clamping piece, thereby preventing the friction energy consumption between the spherical metal particles used for counterweights from failing to meet the design requirements.

[0020] 4) The bottom of the installation shell of the utility model is fixedly connected with a mounting tube at a position corresponding to the fixed sleeve. The fixed sleeve can be movably installed in the mounting tube by threaded connection. The bottom end of the fixed sleeve is fixedly welded downward with a rotating rod with a hexagonal groove on the bottom surface. Before the spherical metal particles for counterweight are filled, the rotating rod is rotated to extend its bottom end to the bottom below the bottom of the installation shell, so that the clamping member is located in the conduit as a whole, so as to facilitate the large-area filling of the spherical metal particles for counterweight; after the spherical metal particles for counterweight are filled, the battery support plate is welded in place, and then the rotating rod is driven to make its bottom end rise above the bottom of the installation shell to fully pre-tighten the spherical metal particles for counterweight, thereby realizing the compact filling and installation of a large number of spherical metal particles for counterweight to ensure the friction energy dissipation effect; and without affecting the filling amount of spherical metal particles for counterweight, the extrusion installation of the spiral spring is realized to ensure the practical effect of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 for Figure 1 A partial enlarged view of .

[0023] Figure 3 It is a structural schematic diagram of the multifunctional counterweight mechanism.

[0024] Figure 4 This is a usage state diagram of the utility model.

[0025] In the accompanying drawings, there are installed shell 1, battery support plate 101, multifunctional counterweight mechanism 2, spherical metal particles 201 for counterweight, conduit 202, clamping piece 203, push plate 204, fixed cross plate 205, limiting guide shaft 206, fixed sleeve 207, fixed ring plate 208, coil spring 209, installation tube 3, and rotating rod 4. DETAILED DESCRIPTION

[0026] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:

[0027] refer to Figure 1-4 , a counterweight device for lithium battery installation, characterized in that: it includes

[0028] The mounting shell 1 is provided with corresponding counterweight cavities on both sides of the mounting shell 1, and a battery support plate 101 is fixedly welded to the top of the counterweight cavity;

[0029] The counterweight mechanism 2 comprises a plurality of spherical metal particles 201 for counterweight, which are filled and installed in the counterweight cavity of the installation shell 1, and the side walls of the counterweight cavity are respectively penetrated with corresponding conduits 202, and corresponding pressing members 203 are movably installed in the conduits 202, one end of the pressing member 203 extends into the counterweight cavity and is arranged in a spherical shape, and the other end of the pressing member 203 is hinged downwardly with a corresponding push plate 204, and the end of the push plate 204 not hinged to the pressing member 203 is respectively hinged to the corresponding fixed horizontal plate 205, and the fixed horizontal plate 205 A corresponding limiting guide shaft 206 is fixed downward at the center of the bottom end surface, and a corresponding fixing sleeve 207 is movably installed at the bottom of the mounting shell 1 at a position corresponding to the limiting guide shaft 206. The limiting guide shaft 206 can be movably inserted into the fixing sleeve 207. A corresponding fixing ring plate 208 is fixedly connected to the outer side of the fixing sleeve 207. A corresponding coil spring 209 is fixedly sleeved on the periphery of the fixing sleeve 207. The upper and lower ends of the coil spring 209 are respectively fixed to the top surface of the fixing ring plate 208 and the bottom surface of the fixed horizontal plate 205.

[0030] During use, the normal counterweight requirement is achieved by the weight of the spherical metal particles 201 filled in the counterweight cavity. At the same time, the friction energy dissipation between a large number of spherical metal particles 201 can achieve a sufficient vibration reduction effect. Therefore, without affecting the counterweight, a sufficient vibration reduction effect is effectively formed, thereby greatly reducing the impact of the continuous vibration environment on the installation stability of the battery module.

[0031] When a large vibration occurs, the spherical metal particles 201 for counterweights can form a small amount of outward push on the pressing member 203, so that the spherical metal particles 201 for counterweights can have more sufficient relative kinetic energy to achieve better friction energy consumption, thereby greatly improving the vibration reduction effect.

[0032] Under the elastic force of the coil spring 209, the clamping piece 203 can be pressed tightly between the spherical metal particles 201 for counterweights in real time to prevent the many spherical metal particles 201 for counterweights from being in a loose state due to a small movement of the clamping piece 203, thereby preventing the friction energy consumption between the spherical metal particles 201 for counterweights from failing to meet the design requirements.

[0033] A mounting tube 3 provided with an internal threaded hole is fixedly connected to the bottom of the mounting shell 1 at a position corresponding to the fixed sleeve 207, and an operating hole connected to the mounting tube 3 is provided at the bottom of the mounting shell 1. The fixed sleeve 207 can be movably installed in the mounting tube 3 by threaded connection. A rotating rod 4 with a hexagonal groove on the bottom surface is fixedly welded downwardly at the bottom end of the fixed sleeve 207, and the rotating rod 4 is located in the mounting tube 3.

[0034] The bottom end of the rotating rod 4 is located above the bottom of the mounting housing 1 , and the coil spring 209 is located between the fixed ring plate 208 and the fixed transverse plate 205 in a compressed state.

[0035] The guide tube 202 is located in the middle of the side wall of the counterweight cavity of the installation shell 1. The counterweight spherical metal particles 201 are iron-based spherical particles.

[0036] Before filling the spherical metal particles for counterweight, rotate the rotating rod 4 so that its bottom end extends to below the bottom of the mounting shell 1, so that the clamping piece 203 is located as a whole in the conduit 202, so as to facilitate large-area filling of the spherical metal particles 201 for counterweight; after the spherical metal particles 201 for counterweight are filled, the battery support plate 101 is welded in place, and then the rotating rod 4 is driven to make its bottom end rise to above the bottom of the mounting shell 1, so as to fully pre-tighten the spherical metal particles 201 for counterweight, thereby achieving a compact filling and installation of a large number of spherical metal particles 201 for counterweight to ensure the friction energy dissipation effect; and without affecting the filling amount of the spherical metal particles 201 for counterweight, the extrusion installation of the coil spring 209 is achieved to ensure the practical effect of the present utility model.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A counterweight device for installing a lithium battery, characterized in that: include An installation shell (1), wherein corresponding counterweight cavities are respectively arranged on both sides of the installation shell (1), and a battery support plate (101) is fixedly welded to the top of the counterweight cavity; The counterweight mechanism (2) comprises a plurality of spherical metal particles (201) for counterweight, which are filled and installed in the counterweight cavity of the installation shell (1); the side walls of the counterweight cavity are respectively penetrated by corresponding conduits (202); corresponding pressing members (203) are respectively movably installed in the conduits (202); one end of the pressing member (203) extends into the counterweight cavity and is arranged in a spherical shape; the other end of the pressing member (203) is hingedly connected to a corresponding push plate (204) at a downward tilt; the end of the push plate (204) not hinged to the pressing member (203) is respectively hinged to a corresponding fixed horizontal plate (205); the fixed horizontal plate (205) A corresponding limiting guide shaft (206) is fixedly connected downward at the center of the bottom end surface of the mounting shell (1); a corresponding fixed sleeve (207) is movably installed at a position corresponding to the limiting guide shaft (206) at the bottom of the mounting shell (1); the limiting guide shaft (206) is movably inserted into the fixed sleeve (207); a corresponding fixed ring plate (208) is fixedly connected to the outer side of the fixed sleeve (207); a corresponding coil spring (209) is fixedly sleeved on the outer periphery of the fixed sleeve (207); the upper and lower ends of the coil spring (209) are respectively fixedly connected to the top surface of the fixed ring plate (208) and the bottom surface of the fixed horizontal plate (205).

2. A counterweight device for installing a lithium battery according to claim 1, characterized in that: A mounting tube (3) provided with an internal threaded hole is fixedly connected to the bottom of the mounting shell (1) at a position corresponding to the fixed sleeve (207), and an operating hole connected to the mounting tube (3) is provided at the bottom of the mounting shell (1); the fixed sleeve (207) is movably mounted in the mounting tube (3) by means of a threaded connection; a rotating rod (4) having a hexagonal groove on the bottom surface is fixedly welded downwardly to the bottom end of the fixed sleeve (207); the rotating rod (4) is located in the mounting tube (3).

3. A counterweight device for installing a lithium battery according to claim 2, characterized in that: The bottom end of the rotating rod (4) is located above the bottom of the mounting shell (1), and the coil spring (209) is located between the fixed ring plate (208) and the fixed transverse plate (205) in a squeezed state.

4. A counterweight device for installing a lithium battery according to claim 1, characterized in that: The guide tube (202) is located in the middle of the side wall of the counterweight chamber of the installation shell (1).

5. A counterweight device for installing a lithium battery according to claim 1, characterized in that: The spherical metal particles (201) used for counterweight are iron-based spherical particles.

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