Elevator counterweight block and production method thereof

A production method and technology for counterweights, applied in the field of counterweights, can solve problems such as increased elevator manufacturing costs, complex casting process, and large amount of counterweights, and achieve the advantages of easy guarantee of machining accuracy, beautiful appearance, and enhanced stability Effect

Active Publication Date: 2017-02-08
河北科莱电梯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Every traction elevator needs counterweights, and the amount of counterweights used is very large. The traditional cast iron counterweights need to be molded according to their structure design. The cost of casting

Method used

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  • Elevator counterweight block and production method thereof
  • Elevator counterweight block and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] An elevator counterweight, such as figure 1 As shown, it includes a casing 1, a composite material 2 filled in the casing, a metal mesh (not shown) wrapped in the casing by the composite material, and a cover plate 3 fixedly connected to the casing;

[0048] The counterweight of the present invention is designed with four depressions 5 at the bottom outside the counterweight shell, with a size of 70×30×20. The design of the depressions is to facilitate the on-site installation personnel to carry and place the counterweight, which is reflected in the details Humanized design concept.

[0049] The composite material includes the following raw materials in parts by weight: 50 parts of cement, 150 parts of hematite ore, 3 parts of cement additive, 5 parts of binder, 5 parts of defoamer, 3 parts of anti-cracking agent, and 3 parts of water reducer , 5 parts of compacting agent, 2 parts of hardening agent, 1 part of expansion coordinating agent, 20 parts of water;

[0050]...

Embodiment 2

[0057] An elevator counterweight, comprising a shell, a composite material filled in the shell, a metal mesh wrapped in the shell by the composite material, and a cover plate fixedly connected with the shell;

[0058] The composite material includes the following raw materials in parts by weight: 80 parts of cement, 200 parts of hematite ore, 5 parts of cement additive, 10 parts of binder, 8 parts of defoamer, 5 parts of anti-cracking agent, and 5 parts of water reducer , 8 parts of compacting agent, 5 parts of hardener, 3 parts of expansion coordinating agent, 50 parts of water;

[0059] The production method of above-mentioned elevator counterweight, comprises the following steps:

[0060] Step 1. Use a steel plate with a thickness of 1mm to process a metal shell consisting of a shell and a cover plate. The upper part of the shell is open, and the cover plate matches the shell; the inner surface of the shell is uniformly concave Groove; horizontally and vertically in the sh...

Embodiment 3

[0066] An elevator counterweight, comprising a shell, a composite material filled in the shell, a metal mesh wrapped in the shell by the composite material, and a cover plate fixedly connected with the shell;

[0067] The composite material includes the following raw materials in parts by weight: 60 parts of cement, 180 parts of hematite ore, 4 parts of cement additive, 8 parts of binder, 6 parts of defoamer, 4 parts of anti-cracking agent, and 4 parts of water reducer , 6 parts of compacting agent, 4 parts of hardening agent, 2 parts of expansion coordinating agent, 40 parts of water;

[0068] The production method of above-mentioned elevator counterweight, comprises the following steps:

[0069] Step 1. Use a steel plate with a thickness of 1mm to process a metal shell consisting of a shell and a cover plate. The upper part of the shell is open, and the cover plate matches the shell; the inner surface of the shell is uniformly concave Groove; horizontally and vertically in ...

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Abstract

The invention discloses an elevator counterweight block and a production method thereof. The counterweight block comprises a shell, a composite material filled in the shell, a metal mesh coated in the shell by the composite material as well as a cover plate fixedly connected with the shell. The composite material comprises the following raw materials in parts by weight: 50-80 parts of cement, 150-200 parts of hematite, 3-5 parts of a cement additive, 5-10 parts of an adhesive, 5-8 parts of an antifoaming agent, 3-5 parts of an anti-cracking agent, 3-5 parts of a water reducing agent, 5-8 parts of dense agent, 2-5 parts of a hardening agent, 1-3 parts of expansion coordination agent and 20-50 parts of water. According to the invention, the counterweight block is reasonable in design, the final compressive strength of the counterweight block is ensured to be greater than 30MPa, and the cost of the counterweight block is reduced on the premise that the performance of the counterweight block is not reduced; the composite material of the counterweight block is scientific in proportioning, and the specific gravity of the counterweight block reaches 3.6g/cm<3>; the counterweight block is compact in structure and excellent in strength and does not generate cracks after being used for a long time; and the size of a well is not changed, and meanwhile, the cost of the counterweight block is lowered.

Description

technical field [0001] The invention relates to a counterweight, in particular to an elevator counterweight of composite material and a production method thereof. Background technique [0002] With the high-speed development of modern cities, many high-rise buildings have sprung up, and elevators have become an indispensable vertical transportation equipment for high-rise buildings. [0003] The traction elevator is the most commonly used type of elevator. The counterweight is an indispensable part of the traction elevator, which can balance the weight of the car and part of the elevator load, and reduce the loss of motor power. [0004] Counterweights are usually made of cast iron. Due to high consumption, high pollution, and low efficiency, the cast iron industry has long been in the state of a low-end industry. Every traction elevator needs a counterweight, and the amount of counterweight used is very large. The traditional cast iron counterweight needs to be molded acco...

Claims

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Application Information

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IPC IPC(8): C04B28/00B66B17/12
CPCB66B17/12C04B28/00C04B14/308C04B24/122C04B14/062C04B24/045C04B14/102C04B24/2652C04B24/24C04B24/18C04B24/42C04B24/00C04B2103/0068C04B2103/302C04B18/146C04B24/34C04B24/04C04B24/121C04B24/38C04B22/002C04B2103/10C04B22/16C04B32/02
Inventor 虞丽君雷晓燕魏建军彭山平金春雨孙金山
Owner 河北科莱电梯有限公司
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