A damped cart for transporting sand cores
By introducing shock-absorbing components and adjustable placement brackets into the transport trolley, the vibration and adaptability issues during sand core transportation were resolved, enabling safe and stable transportation of sand cores and improving transportation efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LIHU CASTING IND CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-07-10
AI Technical Summary
Existing transport trolleys have problems with insufficient shock absorption, poor adaptability, and insufficient structural strength during the transport of sand cores, which makes the sand cores easy to be damaged.
A shock-absorbing trolley was designed, comprising a frame body, wheels, and shock-absorbing components. The frame consists of horizontal and vertical supports, equipped with a guide rail frame and an adjustable placement bracket, combined with 60si2MnD50 springs and shock absorbers to buffer vibrations, and the adjustable placement bracket can accommodate sand cores of different sizes and shapes.
It effectively buffers vibrations during transportation, reduces the damage rate of sand cores, improves transportation stability and product quality, extends service life, and reduces costs.
Smart Images
Figure CN224476942U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of trolley technology, and in particular relates to a shock-absorbing trolley for transporting sand cores. Background Technology
[0002] In modern industrial production, the transportation of sand cores is crucial. As an indispensable component in the casting process, the quality and integrity of sand cores directly affect the quality of the final casting. However, in traditional sand core transportation, due to the limitations of the transportation vehicles, sand cores are often susceptible to vibration and collisions, leading to damage.
[0003] Existing transport trolleys have the following design shortcomings:
[0004] 1. Insufficient shock absorption: Most trolleys lack effective shock absorption devices and cannot effectively buffer vibrations during transportation. The sand core is easily damaged when it encounters uneven road surfaces.
[0005] 2. Poor adaptability: For sand cores of different sizes and shapes, the existing trolley's placement rack is usually fixed and cannot meet diverse transportation needs.
[0006] 3. Insufficient structural strength: The frame of some trolleys is not strong enough and is prone to deformation when bearing heavy sand cores, which affects service life and transportation safety. Utility Model Content
[0007] To address the problems existing in the prior art, this application provides a shock-absorbing trolley for transporting sand cores, which can effectively solve the problem of damage to sand cores of different sizes during the transfer process, providing strong protection for the safe and stable transportation of sand cores, and has good application prospects and economic benefits.
[0008] The technical solution is as follows:
[0009] A shock-absorbing trolley for transporting sand cores is provided, which includes a frame body and wheels, and shock-absorbing components are provided between the frame body and the wheels, and above each wheel.
[0010] The horizontal and vertical supports constitute the frame body, and the first support is installed on the horizontal support.
[0011] The first guide rail and the second guide rail form a guide rail frame and are fixedly connected to the first bracket;
[0012] The guide rail frame is equipped with a mounting bracket and a slider, and the slider is slidably connected to the guide rail frame.
[0013] A placement pad is provided on the placement bracket, and the placement pad matches the placement bracket. The placement bracket cooperates with the slider and slides along the guide rail frame in the XY axis direction.
[0014] The horizontal support has grooves that mate with the placement pad and the placement rack;
[0015] The placement bracket consists of multiple bracket sections and can be adjusted according to the shape and size of the sand core.
[0016] Preferably, the shock absorption assembly includes a spring, a spring washer, and a spring placement bracket that abuts against the spring, with one end of the spring abutting against the horizontal support and the other end abutting against the spring placement bracket, and the spring placement bracket being fixedly connected to the vertical support.
[0017] Preferably, the shock absorption assembly also includes a shock absorber, with an independent shock absorption assembly above each wheel, including a 60si2MnD50 spring and a shock absorber.
[0018] Preferably, handrails are provided on both sides of the frame body, and the handrails include push handrails and pull handrails.
[0019] Preferably, the first guide rail and the second guide rail are fixedly connected to the horizontal bracket by screws.
[0020] Preferably, the placement bracket is fixedly connected to the horizontal bracket by screws.
[0021] Preferably, the bottom of the frame body is provided with reinforcing ribs.
[0022] Preferably, the first guide rail is a slide rail in the Y-axis direction, and the second guide rail is a slide rail in the X-axis direction.
[0023] The technical solution includes at least the following technical effects:
[0024] 1. By installing shock-absorbing components between the frame and the wheels, and above each wheel, vibration and impact during transportation can be effectively buffered, extending the service life of the sand core.
[0025] 2. Significantly reduces the damage rate of sand cores during transportation, improves product quality and production efficiency, and reduces cost losses caused by scrap.
[0026] 3. The adjustable placement bracket on the guide rail frame consists of multiple sections and can be flexibly adjusted according to the shape and size of the sand core. The placement bracket works in conjunction with the slider, sliding along the guide rail frame in the XY direction to meet the placement requirements of sand cores of different specifications. The placement pad matches the placement bracket, further enhancing the shock absorption effect and ensuring the stability of the sand core during transportation.
[0027] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description
[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0029] Figure 1 A schematic diagram of a shock-absorbing trolley for transporting sand cores, provided in a preferred embodiment of this application;
[0030] Figure 2 A schematic diagram of the structure of a horizontal support provided in a preferred embodiment;
[0031] Figure 3 A top view of a first support and a placement support provided in a preferred embodiment;
[0032] Explanation of reference numerals in the attached figures:
[0033] 1. Frame body; 11. Groove; 2. Shock absorption assembly; 21. Spring; 22. Spring mounting bracket; 3. Wheel; 4. Handrail; 5. Push handle; 6. Adjustment assembly; 61. First guide rail; 62. Second guide rail; 63. Slider; 64. First bracket; 65. Threaded hole; 7. Placement pad; 8. Placement bracket. Detailed Implementation
[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0035] As attached Figure 1 - Appendix Figure 3 As shown: A shock-absorbing trolley for transporting sand cores is provided, including a frame body 1 and wheels 3. Shock-absorbing components 2 are provided between the frame body 1 and the wheels 3, and above each wheel 3. A guide rail frame is fixedly connected to a first bracket 64. A placement bracket 8 is provided with a placement pad 7 for shock absorption, which matches the placement bracket 8. The first bracket 64 is provided with a groove 11 that cooperates with the placement pad 7 and the placement bracket.
[0036] Optionally, the frame body 1 is made of Q235 carbon steel that meets strength requirements, and is manufactured by cutting, welding, and other processing techniques according to the designed specific shape. Reinforcing ribs are welded to the bottom of the frame body 1 to further enhance its strength and stability, ensuring that it will not deform under heavy loads and guaranteeing transportation safety.
[0037] The shock absorber assembly 2 includes a spring 21, a spring 21 washer, and a spring mounting bracket 22 that abuts against the spring 21, all located below the horizontal support. One end of the spring 21 abuts against the horizontal support, and the other end abuts against the spring mounting bracket 22. The spring mounting bracket 22 is fixedly connected to a vertical support. The shock absorber assembly 2 is installed between the vehicle frame body 1 and the wheel 3 according to design requirements. The pre-compression of the spring 21 and the drag coefficient of the shock absorber are adjusted to ensure optimal shock absorption.
[0038] Furthermore, each wheel 3 is equipped with an independent spring 21 damping assembly 2, including a spring 21 and a shock absorber. The spring is a 60Si2MnD50 spring. One end of the spring 21 is connected to the wheel 3, and the other end is connected to the wheel 3 bracket. When the trolley travels on uneven roads, the spring 21 can effectively buffer the vibration, and the shock absorber further suppresses the rebound of the spring 21, so that the vibration is more effectively controlled and the impact force transmitted to the sand core is reduced.
[0039] like Figure 2 As shown, the horizontal and vertical supports constitute the frame body 1. A first support 64 is mounted on the horizontal support. A first guide rail 61 and a second guide rail 62 constitute a guide rail frame. An adjustable placement bracket 8 and a slider 63 are mounted on the guide rail frame. The slider 63 is slidably connected to the guide rail frame, and the placement bracket 8 cooperates with the slider 63 to slide along the guide rail frame in the XY axis direction. The first guide rail 61 is a slide rail in the Y-axis direction, and the second guide rail 62 is a slide rail in the X-axis direction. The XY axis slide rails are fixedly mounted on the frame with screws, and then the adjustable placement bracket 8 is connected by screws in the same manner. The placement bracket 8 is composed of multiple bracket sections connected together (e.g., ...). Figure 3 As shown, the shape and size of the sand core can be adjusted according to its shape and size. After adjustment, the screws are tightened for secondary fixation to ensure the stability of the placement rack.
[0040] like Figure 1 and Figure 2 As shown, the horizontal support of the frame body 1 is equipped with an adjustable groove 11, whose size can be adjusted via the folding slide rails connected in the X and Y axes. To ensure service life, these grooves are made of galvanized sheet metal. For ease of use, each folding slide rail has a fixed mounting pad 7 made of synthetic rubber, which has good elasticity and flexibility, absorbs vibration energy, and provides fixation and cushioning. The mounting pad and the mounting frame are integrated, eliminating the need for on-site assembly and greatly improving ease of operation.
[0041] It should be noted that, Figure 3The eight placement brackets are shown in a small section. Several placement brackets are set according to actual needs. The placement brackets are not a whole, but are connected together by multiple bracket sections. After the size and shape of the sand core are adjusted, they are fixedly connected to the threaded hole 65 of the slide rail in the Y-axis direction by screws.
[0042] Handrails are provided on both sides of the frame, including pull handles 4 and push handles 5, which are installed in appropriate positions on the frame. The handrails adopt a front-pull and rear-push structure, which is simple and practical in design. It saves economic costs and facilitates on-site operation in pairs when handling a large number of sand cores, thereby improving work efficiency and convenience.
[0043] After the trolley was manufactured, a series of tests were conducted, including transportation tests simulating different road conditions and tests on the sand core fixation effect. Based on the test results, the trolley was optimized and adjusted to ensure that its performance met the requirements for sand core damage-proof transportation.
[0044] In summary, the shock-absorbing trolley for transporting sand cores provided in this application can effectively solve the problem of damage to sand cores of different sizes during the transfer process, and has good application prospects and economic benefits.
[0045] The structures, proportions, and sizes illustrated in the accompanying drawings are solely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the scope of this application and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this application, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," "first," and "second," etc., used in this specification are merely for clarity and not intended to limit the scope of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this application's implementation.
[0046] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not covered by this application. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.
[0047] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A shock-absorbing trolley for transporting sand cores, comprising a frame body and wheels, characterized in that, Shock-absorbing components are installed between the frame body and the wheels, as well as above each wheel; The horizontal and vertical supports constitute the frame body, and the first support is installed on the horizontal support. The first guide rail and the second guide rail constitute a guide rail frame and are fixedly connected to the first bracket; The guide rail frame is equipped with a mounting bracket and a slider, and the slider is slidably connected to the guide rail frame. A placement pad is provided on the placement bracket, and the placement pad matches the placement bracket. The placement bracket cooperates with the slider and slides along the guide rail frame in the XY axis direction. The horizontal support has grooves that mate with the placement pad and the placement rack; The support frame consists of multiple sections, which are adjusted according to the shape and size of the sand core.
2. The shock-absorbing trolley for transporting sand cores according to claim 1, characterized in that, The shock absorption assembly includes a spring, a spring washer, and a spring placement bracket that abuts against the spring, with one end of the spring abutting against the horizontal support and the other end abutting against the spring placement bracket. The spring placement bracket is fixedly connected to the vertical support.
3. The shock-absorbing trolley for transporting sand cores according to claim 2, characterized in that, The shock absorption assembly also includes shock absorbers, with an independent shock absorption assembly set above each wheel, including a 60si2MnD50 spring and a shock absorber.
4. The shock-absorbing trolley for transporting sand cores according to claim 1, characterized in that, Handrails are provided on both sides of the frame body, and the handrails include push handrails and pull handrails.
5. The shock-absorbing trolley for transporting sand cores according to claim 1, characterized in that, The first guide rail and the second guide rail are fixedly connected to the horizontal bracket by screws.
6. The shock-absorbing trolley for transporting sand cores according to claim 1, characterized in that, The placement bracket is fixedly connected to the horizontal bracket by screws.
7. The shock-absorbing trolley for transporting sand cores according to claim 1, characterized in that, The bottom of the frame body is provided with reinforcing ribs.
8. The shock-absorbing trolley for transporting sand cores according to claim 1, characterized in that, The first guide rail is a slide rail in the Y-axis direction, and the second guide rail is a slide rail in the X-axis direction.