Damping device for cab of loading machine

Abstract

The utility model relates to the technical field of loaders, and discloses a loader cab damping device which comprises a loader cab, and a damping mechanism is arranged at the bottom of the loader cab. The damping mechanism comprises a bottom plate, damping blocks are fixedly connected to the four corners of the bottom of the bottom plate, a connecting plate is fixedly connected to the bottoms of the damping blocks through first bolts, a damper is fixedly connected to the bottom of the connecting plate, a spring is arranged on the outer side of the damper in a sleeving mode, and a supporting plate is fixedly connected to the bottom of the damper. According to the loading machine cab damping device, when the loading machine cab is impacted, the spring elastically deforms firstly to absorb part of impact energy, then the damping block and the damper play a role, and residual vibration energy is absorbed and dissipated; the damping block is matched with the damper and the spring, so that unnecessary deformation of the damping mechanism is effectively avoided, and the stability and comfort of the cab of the loading machine are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of loaders, in particular to a shock absorbing device for a loader cab. Background Art

[0002] In the field of construction machinery, loaders, as important material handling equipment, are widely used in many industries such as construction, mining, agriculture and infrastructure construction. Due to the complexity and diversity of the working environment, loaders often need to face uneven roads, heavy loads and sudden impact loads during operation, all of which cause strong vibrations inside the cab.

[0003] According to Chinese patent announcement number CN 220847807 U, a loader cab shock-absorbing device is disclosed, which is arranged between the loader cab and the frame, and a cab floor is arranged under the loader cab, including at least 4 groups of elastic door-type brackets, each group of elastic door-type brackets includes an upper elastic door-type bracket and a lower elastic door-type bracket symmetrically arranged, and the upper elastic door-type bracket and the lower elastic door-type bracket have the same structure; the upper elastic door-type bracket and the lower elastic door-type bracket both include a crossbeam and two L-shaped plates connected to the crossbeam in a door-shaped manner, and the vertical sides of the L-shaped plates are provided with arc surfaces, and the horizontal sides of the L-shaped plates of the upper elastic door-type bracket are fixed on the cab floor, and the horizontal sides of the L-shaped plates of the lower elastic door-type bracket are fixed on the frame; the upper elastic door-type bracket is elastically connected to the lower elastic door-type bracket through an elastic component. This shock-absorbing device is used to reduce the severe vibration of the cab caused by the operation of the loader, thereby improving the driver's driving comfort and the service life of the cab.

[0004] However, when the shock absorbing device is subjected to a large external force during use, the elastic door-shaped bracket is prone to deformation, which affects the shock absorbing effect of the shock absorbing device. Utility Model Content

[0005] The utility model aims to provide a shock absorbing device for a loader cab to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a loader cab shock absorbing device, comprising a loader cab, wherein a shock absorbing mechanism is arranged at the bottom of the loader cab;

[0007] The shock absorbing mechanism includes a base plate, the four corners of the bottom of the base plate are fixedly connected with shock absorbing blocks, the bottom of the shock absorbing blocks is fixedly connected with a connecting plate using a first bolt, the bottom of the connecting plate is fixedly connected with a damper, a spring is sleeved on the outside of the damper, the bottom of the damper is fixedly connected with a support plate, and the bottom of the support plate is fixedly connected with a frame using a second bolt.

[0008] Preferably, the four corners of the top of the loader cab are fixedly connected with lifting rings, and a windshield is arranged on the left side of the loader cab.

[0009] Furthermore, the lifting rings fixed on the four corners of the top of the loader cab facilitate the lifting and transportation of the loader cab. When the loader cab needs to be moved or repaired, the lifting equipment can be used to lift the cab through the lifting rings and move it to the designated position, thereby improving work efficiency and convenience. The windshield provides the driver with a wide forward view, which helps the driver to observe the position of the bucket, the conditions around the loader, the road conditions and the surrounding environment in real time in a complex working environment, thereby ensuring driving and working safety.

[0010] Preferably, the base plate is fixedly connected to the bottom of the loader cab.

[0011] Furthermore, the connection relationship between the base plate and the loader cab is clarified, that is, the base plate is fixedly connected to the bottom of the cab, which strengthens the connection stability between the shock absorbing mechanism and the cab and ensures that the shock absorbing effect can be effectively transmitted to the cab.

[0012] Preferably, one end of the spring is fixedly connected to the bottom of the connecting plate, the other end of the spring is fixedly connected to the top of the supporting plate, and the surface of the spring is coated with a Teflon coating.

[0013] Furthermore, the function of the spring as a shock-absorbing element is clarified, that is, one end is connected to the connecting plate and the other end is connected to the supporting plate, and the vibration energy is absorbed and dispersed through deformation. The surface of the spring is coated with Teflon coating to help the spring reduce dust adhesion and enhance the corrosion resistance and wear resistance of the spring.

[0014] Preferably, four dampers and four springs are provided, and the four dampers and four springs are located at the bottom of the shock absorbing block and the top of the frame.

[0015] Furthermore, by increasing the number of dampers and springs to four and evenly distributing them at the bottom of the four shock absorbing blocks and at the four corners of the top of the frame, the overall effect and stability of the shock absorbing system are improved.

[0016] Preferably, four support plates are provided, respectively located at the four corners of the top of the frame.

[0017] Furthermore, by arranging support plates at the four corners of the top of the frame, the connection stability and uniformity of the supporting force distribution between the shock absorbing mechanism and the frame are ensured.

[0018] Preferably, through holes are provided at four corners of the connecting plate and the supporting plate, and a plurality of the first bolts and the second bolts are provided, and the plurality of the first bolts and the second bolts are respectively threadedly connected in the through holes provided in the connecting plate and the supporting plate.

[0019] Furthermore, through holes are provided at the four corners of the connecting plate and the supporting plate, and multiple first bolts and second bolts are provided and are respectively threadedly connected in these through holes. The bolt connection method is simple and reliable, easy to install and disassemble, and also ensures the firmness of the connection.

[0020] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0021] First, the utility model fixes the shock-absorbing blocks at the four bottom corners of the bottom plate, fixes the connecting plate to the bottom of the shock-absorbing blocks by the first bolt, ensures that the contact surface between the four connecting plates and the four shock-absorbing blocks is flat, and the tightening torque of the first bolt meets the specified requirements, and then installs a damper at the bottom of each connecting plate. The damper should be installed vertically to ensure that its internal mechanism can work normally, and a spring is sleeved on the outside of the damper to ensure that one end of the spring is in close contact with the bottom of the connecting plate, and the other end of the spring is connected to the top of the support plate installed later, and the four support plates are placed at the top four corners of the frame and fixed by the second bolt. Similarly, it is necessary to ensure that the contact surface between the support plate and the frame is flat, and the tightening torque of the second bolt meets the specified requirements. When the loader is driving or operating on an uneven road, the damper and the spring cooperate with each other similarly to the existing automobile shock absorber, and the loader cab will be subjected to vibrations and impacts from the ground. These vibrations The vibration is first absorbed by the viscous liquid or gas inside the four dampers, which slows down the speed and amplitude of vibration transmission. At the same time, the four springs also play a buffering role, further absorbing and dissipating the vibration energy through their elastic deformation. The Teflon coating on the spring surface can help the spring reduce dust adhesion and enhance the corrosion resistance and wear resistance of the spring. Then the remaining kinetic energy is absorbed by the four shock-absorbing blocks at the four corners of the bottom of the base plate. In this way, the vibration transmitted to the loader cab is greatly weakened. The shock-absorbing blocks work together with the dampers and springs in the shock-absorbing mechanism to jointly undertake the shock-absorbing task. When the loader cab is impacted, the spring first undergoes elastic deformation to absorb part of the impact energy. Subsequently, the damper works to cooperate with the shock-absorbing blocks to absorb and dissipate the remaining vibration energy. The shock-absorbing mechanism effectively avoids unnecessary deformation through the mutual cooperation of the shock-absorbing blocks, dampers and springs, ensuring the stability and comfort of the loader cab.

[0022] Second, the utility model has through holes at the four corners of the connecting plate and the supporting plate, and a plurality of first bolts and second bolts are provided, which are respectively threadedly connected in these through holes. The bolt connection method is simple and reliable, easy to install and disassemble, and also ensures the firmness of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the left side view of the utility model.

[0027] Among them: 1. loader cab; 101. lifting ring; 102. windshield; 2. shock absorbing mechanism; 201. bottom plate; 202. shock absorbing block; 203. first bolt; 204. connecting plate; 205. damper; 206. spring; 207. support plate; 208. second bolt; 209. frame. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The utility model provides the following technical solutions:

[0030] Embodiment 1

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , a loader cab shock absorbing device, comprising a loader cab 1, a shock absorbing mechanism 2 is arranged at the bottom of the loader cab 1;

[0032] The shock absorbing mechanism 2 includes a base plate 201, and shock absorbing blocks 202 are fixedly connected to the four corners of the bottom of the base plate 201. The bottom of the shock absorbing block 202 is fixedly connected to a connecting plate 204 using a first bolt 203. The bottom of the connecting plate 204 is fixedly connected to a damper 205. A spring 206 is sleeved on the outer side of the damper 205. The bottom of the damper 205 is fixedly connected to a support plate 207, and the bottom of the support plate 207 is fixedly connected to a frame 209 using a second bolt 208.

[0033] Specifically, the four corners of the top of the loader cab 1 are fixedly connected with lifting rings 101 , and a windshield 102 is arranged on the left side of the loader cab 1 .

[0034] Specifically, the bottom plate 201 is fixedly connected to the bottom of the loader cab 1 .

[0035] Specifically, one end of the spring 206 is fixedly connected to the bottom of the connecting plate 204 , and the other end of the spring 206 is fixedly connected to the top of the supporting plate 207 . The surface of the spring 206 is coated with a Teflon coating.

[0036] Specifically, four dampers 205 and four springs 206 are provided, and the four dampers 205 and four springs 206 are located at the bottom of the shock absorbing block 202 and the top of the frame 209 .

[0037] Specifically, four support plates 207 are provided, respectively located at the four corners of the top of the frame 209 .

[0038] Through the above technical solution, the damping blocks 202 are fixedly connected at the four corners of the bottom of the bottom plate 201, and the connecting plate 204 is fixed to the bottom of the damping block 202 by the first bolt 203, ensuring that the contact surface between the four connecting plates 204 and the four damping blocks 202 is flat, and the tightening torque of the first bolt 203 meets the specified requirements, and then, the damper 205 is installed at the bottom of each connecting plate 204, and the damper 205 should be installed vertically to ensure that its internal mechanism can work normally, and a spring 206 is sleeved on the outside of the damper 205 to ensure that one end of the spring 206 is in contact with the bottom of the connecting plate 204. The other end of the spring 206 is connected to the top of the support plate 207 installed later, and the four support plates 207 are placed at the top four corners of the frame 209 and fixed by the second bolts 208. Similarly, it is necessary to ensure that the contact surface between the support plate 207 and the frame 209 is flat, and the tightening torque of the second bolt 208 meets the specified requirements. When the loader is driving or operating on an uneven road, the shock absorbing block 202, the damper 205 and the spring 206 are prior art, and will not be described in detail here. The damper 205 and the spring 206 cooperate with each other similar to the existing Automobile shock absorber, the loader cab 1 will be subjected to vibration and impact from the ground, these vibrations are first absorbed by the viscous liquid or gas inside the four dampers 205, slowing down the speed and amplitude of vibration transmission, at the same time, the four springs 206 also play a buffering role, through its elastic deformation to further absorb and disperse the vibration energy, the spring 206 surface coated with Teflon coating can help the spring 206 reduce the adhesion of dust, but also enhance the corrosion resistance and wear resistance of the spring 206, and then through the four shock-absorbing blocks 202 at the four corners of the bottom of the bottom plate 201 to absorb the remaining kinetic energy, so that the loader cab 1 is subjected to vibration and impact from the ground, and then ... The vibration of the loader cab 1 is greatly reduced. The shock absorbing block 202, the damper 205 and the spring 206 work together in the shock absorbing mechanism 2 to jointly undertake the shock absorbing task. When the loader cab 1 is impacted, the spring 206 first undergoes elastic deformation to absorb part of the impact energy. Subsequently, the damper 205 works to cooperate with the shock absorbing block 202 to absorb and dissipate the remaining vibration energy. The mutual cooperation between the shock absorbing block 202, the damper 205 and the spring 206 allows the shock absorbing mechanism 2 to effectively avoid unnecessary deformation, thereby ensuring the stability and comfort of the loader cab 1.

[0039] Embodiment 2

[0040] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 On the basis of the first embodiment, it is further obtained that through holes are opened at the four corners of the connecting plate 204 and the supporting plate 207, and multiple first bolts 203 and second bolts 208 are provided, and multiple first bolts 203 and second bolts 208 are respectively threadedly connected in the through holes opened in the connecting plate 204 and the supporting plate 207.

[0041] Through the above technical solution, through holes are opened at the four corners of the connecting plate 204 and the supporting plate 207, and multiple first bolts 203 and second bolts 208 are provided and are respectively threadedly connected in these through holes. By adopting the bolt connection method, this method is simple and reliable, easy to install and disassemble, and also ensures the firmness of the connection.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A loader cab shock absorbing device, comprising a loader cab (1), characterized in that: A shock absorbing mechanism (2) is provided at the bottom of the loader cab (1); The shock absorbing mechanism (2) comprises a bottom plate (201), the bottom four corners of the bottom of the bottom plate (201) are fixedly connected to shock absorbing blocks (202), the bottom of the shock absorbing blocks (202) are fixedly connected to a connecting plate (204) using a first bolt (203), the bottom of the connecting plate (204) is fixedly connected to a damper (205), the outer side of the damper (205) is sleeved with a spring (206), the bottom of the damper (205) is fixedly connected to a support plate (207), and the bottom of the support plate (207) is fixedly connected to a vehicle frame (209) using a second bolt (208).

2. A loader cab shock absorbing device according to claim 1, characterized in that: The top four corners of the loader cab (1) are fixedly connected with lifting rings (101), and the left side of the loader cab (1) is provided with a windshield (102).

3. The loader cab shock absorbing device according to claim 1, characterized in that: The bottom plate (201) is fixedly connected to the bottom of the loader cab (1).

4. The loader cab shock absorbing device according to claim 1, characterized in that: One end of the spring (206) is fixedly connected to the bottom of the connecting plate (204), and the other end of the spring (206) is fixedly connected to the top of the supporting plate (207); the surface of the spring (206) is coated with a Teflon coating.

5. The loader cab shock absorbing device according to claim 1, characterized in that: Four of the dampers (205) and springs (206) are provided, and the four dampers (205) and springs (206) are located at the bottom of the shock absorbing block (202) and the top of the vehicle frame (209).

6. The loader cab shock absorbing device according to claim 1, characterized in that: The support plates (207) are provided with four respectively located at the four corners of the top of the vehicle frame (209).

7. The loader cab shock absorbing device according to claim 1, characterized in that: Through holes are provided at four corners of the connecting plate (204) and the supporting plate (207), and a plurality of the first bolts (203) and the second bolts (208) are provided. The plurality of the first bolts (203) and the second bolts (208) are respectively threadedly connected in the through holes provided in the connecting plate (204) and the supporting plate (207).

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