Supporting leg fixing device of movable crushing and screening station

Abstract

The utility model discloses a support leg fixing device for a movable crushing and screening station, which belongs to the field of mining equipment and comprises an outer frame and an inner frame, a pin hole is arranged on the inner frame, a fixing pin structure is mounted in the pin hole and comprises a pin shaft and a fine-tuning support portion, the upper end of the fine-tuning support portion is abutted against the outer frame, and the lower end of the fine-tuning support portion is abutted against the pin shaft. The outer frame is supported through the fine adjustment supporting part, fine adjustment of the height of the outer frame can be achieved by adjusting the fine adjustment supporting part, then fine adjustment of the overall height of the supporting leg is achieved, and the problem that in the prior art, the height of the supporting leg of the crushing and screening station is adjusted through pin holes of different heights, and fine adjustment cannot be conducted is solved.

Description

Technical Field

[0001] The utility model relates to mining equipment, in particular to a mobile type crushing and screening station support leg fixing device. Background Art

[0002] The traditional mobile crushing and screening station leg fixing device usually uses ordinary pins for fixing. A row of pin fixing holes are opened on the inner frame. The up and down adjustment amount is the same as the hole spacing. The distance is large and the leg height cannot be fine-tuned. As a result, the equipment cannot be firmly fixed on uneven ground, affecting the normal use of the equipment.

[0003] For example, the "Steel Leg System Suitable for Large-tonnage Underwater Steel Pipe Pile Removal Device" disclosed in Chinese patent documents has a publication number of CN218813705U, which includes a column, a leg and a bottom connection block fixed to the pontoon platform of the removal device. The center of the bottom connection block is provided with an insertion hole, and the column passes through the insertion hole and the bottom of the column is against the riverbed; the column is provided with a plurality of first pin holes distributed along the height direction of the column, and the leg is installed above the bottom connection block and located on the side of the column, and the leg is provided with a second pin hole adapted to the first pin hole, and the first pin hole and the second pin hole are fixed by a pin through and through, so that the leg is fixed to the column. The shortcoming of this patent is that its legs are height-adjusted by the cooperation of pin holes of different heights and pin shafts, but the minimum distance of height adjustment is the distance between two adjacent pin holes, and fine-tuning cannot be achieved. Utility Model Content

[0004] The utility model aims to overcome the problem in the prior art that the height of the legs of a crushing and screening station is adjusted by pin holes at different heights and cannot be fine-tuned. A mobile crushing and screening station leg fixing device is provided, which can increase the function of height fine-tuning on the basis of adjusting the height through the pin holes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a mobile crushing and screening station leg fixing device, comprising an outer frame and an inner frame, wherein the inner frame is provided with a pin hole, a fixing pin structure is installed in the pin hole, the fixing pin structure comprises a pin shaft and a fine-tuning support part, and the upper end of the fine-tuning support part abuts against the outer frame.

[0007] In the present application, the outer frame is supported by a fine-tuning support portion, and by adjusting the fine-tuning support portion, the height of the outer frame can be fine-tuned, thereby achieving fine-tuning of the overall height of the support leg.

[0008] Preferably, the fine-tuning support portion includes a plurality of support surfaces, and the support surfaces are parallel to the axis of the pin shaft.

[0009] Preferably, the plurality of support surfaces include a low support surface and a high support surface, and the distance from the high support surface to the pin is greater than the distance from the low support surface to the pin. By making different support surfaces support the outer frame, the distance between the outer frame and the pin can be fine-tuned, and then the distance between the outer frame and the inner frame can be fine-tuned, thereby fine-tuning the overall height of the leg.

[0010] Preferably, a transition surface is provided between two adjacent support surfaces among the plurality of support surfaces, and the transition surface is a curved surface. The provision of the transition surface makes the adjustment of the support leg smoother.

[0011] Preferably, the fine-tuning support portion is square.

[0012] Preferably, the fixing pin structure further comprises a rotating handle, and the rotating handle is located outside the inner frame.

[0013] Preferably, the outer frame is provided with a flange structure for installation, the flange structure is located at the rear side of the outer frame, and the fixing pin is located at the front side of the inner frame. This structure makes it easy for operators to adjust the fixing pin.

[0014] Preferably, the inner frame is provided with a plurality of rows of pin holes spaced apart in the vertical direction. The pin holes spaced apart in the vertical direction are used to adjust the height of the legs over a wide range.

[0015] Preferably, the inner frame is provided with a plurality of rows of pin holes spaced apart in the horizontal direction, so as to improve the reliability of the support to the outer frame.

[0016] Therefore, the utility model has the following beneficial effects: (1) the overall height of the outriggers can be fine-tuned; (2) the height of the outriggers can be fine-tuned more smoothly; and (3) the support for the external frame is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the first embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the first embodiment of the utility model.

[0019] Figure 3 It is a main structural schematic diagram of the first embodiment of the utility model.

[0020] Figure 4 This is a schematic diagram of the main structure of the second embodiment of the present utility model.

[0021] Figure 5 This is a main structural diagram of the third embodiment of the present utility model.

[0022] In the figure: outer frame 1 inner frame 2 mounting flange 3 pin hole 4 pin shaft 5 turning handle 6 fine adjustment support 7 cylinder lifting assembly 8. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Embodiment 1, as Figure 1-3 As shown, a mobile crushing and screening station leg fixing device includes an outer frame 1 and an inner frame 2. The outer frame 1 and the inner frame 2 are both square tube structures, and the outer frame 1 is sleeved on the outer side of the inner frame 2.

[0025] Six mounting flanges 3 are installed on the rear side of the outer frame 1. The mounting flanges 3 are used to mount the outer frame 1 on the whole machine by bolts. There are three mounting flanges 3 on the left and right sides of the outer frame 1, and the three mounting flanges 3 on a single side are arranged at equal intervals in the vertical direction.

[0026] The front side of the inner frame 2 is provided with a plurality of pin holes 4. The pin holes 4 are provided in three rows and two columns, a total of six. The three rows of pin holes 4 are spaced apart in the vertical direction, and the two columns of pin holes 4 are spaced apart in the horizontal direction. A fixed pin structure is installed in the pin hole 4, and the fixed pin structure includes a pin shaft 5, a fine-tuning support portion 7, and a rotating handle 6. The pin holes 4 spaced apart in the vertical direction are used to adjust the height of the legs over a large range. The pin holes 4 spaced apart in the horizontal direction are used to improve the reliability of the support for the outer frame 1.

[0027] The pin shaft 5 passes through the inner frame 2, thereby supporting the gravity transmitted from the whole machine to the outer frame 1, and a limit pin is passed through one end of the pin shaft 5 located at the rear side of the inner frame 2. The upper end of the fine-tuning support part 7 abuts against the outer frame 1. The rotating handle 6 is located outside the inner frame 2 to facilitate adjustment by the operator.

[0028] The fine-tuning support part 7 includes a plurality of support surfaces, and the support surfaces are parallel to the axis of the pin 5. The plurality of support surfaces include a low-position support surface and a high-position support surface, and the distance from the high-position support surface to the pin 5 is greater than the distance from the low-position support surface to the pin 5. Specifically, in the present embodiment, the fine-tuning support part 7 is square, and includes four support surfaces, and the four support surfaces are all parallel to the axis of the pin 5, and the distances between the four support surfaces and the pin 5 are different. The fine-tuning support part 7 is attached to the outer surface of the inner frame 2, and the thickness of the fine-tuning support part 7 is not less than 1 cm. A cushion block is provided at the bottom of the outer frame 1, and the cushion block is in direct contact with the fine-tuning support part 7 to prevent the fine-tuning support part 7 from being crushed during the adjustment process.

[0029] A cylinder lifting assembly 8 is also provided inside the inner frame 2 , and the outer frame 1 can be lifted relative to the inner frame 2 by means of the cylinder lifting assembly 8 .

[0030] When it is necessary to fine-tune the height of the legs of the fixing device, first, the outer frame 1 is lifted upward relative to the inner frame 2 by the oil cylinder lifting assembly 8. After the outer frame 1 is lifted, its lower side is separated from the upper end of the fine-tuning support part 7, and a gap is formed. The height of the legs is raised or lowered as needed to adjust the different support surfaces of the fine-tuning support part 7 to the position directly facing the lower side of the outer frame 1. For example, when the legs need to be raised, the support surface farther from the pin 5 is adjusted to the upward direction. If the legs need to be lowered, the support surface closer to the pin 5 is adjusted to the upward direction. The specific adjustment method is to turn the rotating handle 6 located on the front side of the inner frame 2. After the pin 5 structure is rotated to the desired position, the outer frame 1 is reset downward by the oil cylinder lifting assembly 8. After the outer frame 1 moves downward, the pad contacts and fits with the support surface and is pressed tightly, thereby completing the fine adjustment of the height of the legs.

[0031] When the height of the legs of the fixing device needs to be adjusted in a larger range, the outer frame 1 is first lifted upward relative to the inner frame 2 by the oil cylinder lifting assembly 8. After the outer frame 1 is lifted, its lower side is separated from the upper end of the fine-tuning support 7, and a gap is formed. Then, the two stop pins 5 located at the rear side of the inner frame 2 are pulled out, and the entire fixing pin structure is taken out horizontally and inserted into the pin holes 4 located at different heights. After the fixing pin structure is fully inserted, the stop pin is reinserted into the pin 5. Then, the outer frame 1 is reset downward by the oil cylinder lifting assembly 8 to complete the larger range adjustment of the leg height.

[0032] Embodiment 2, as Figure 4 As shown, a mobile crushing and screening station leg fixing device includes an outer frame 1 and an inner frame 2. The outer frame 1 and the inner frame 2 are both square tube structures, and the outer frame 1 is sleeved on the outer side of the inner frame 2.

[0033] Six mounting flanges 3 are installed on the rear side of the outer frame 1. The mounting flanges 3 are used to mount the outer frame 1 on the whole machine by bolts. There are three mounting flanges 3 on the left and right sides of the outer frame 1, and the three mounting flanges 3 on a single side are arranged at equal intervals in the vertical direction.

[0034] The front side of the inner frame 2 is provided with a plurality of pin holes 4. The pin holes 4 are provided in three rows and two columns, a total of six. The three rows of pin holes 4 are spaced apart in the vertical direction, and the two columns of pin holes 4 are spaced apart in the horizontal direction. A fixed pin structure is installed in the pin hole 4, and the fixed pin structure includes a pin shaft 5, a fine-tuning support portion 7, and a rotating handle 6. The pin holes 4 spaced apart in the vertical direction are used to adjust the height of the legs over a large range. The pin holes 4 spaced apart in the horizontal direction are used to improve the reliability of the support for the outer frame 1.

[0035] The pin shaft 5 passes through the inner frame 2, thereby supporting the gravity transmitted from the whole machine to the outer frame 1, and a limit pin is passed through one end of the pin shaft 5 located at the rear side of the inner frame 2. The upper end of the fine-tuning support part 7 abuts against the outer frame 1. The rotating handle 6 is located outside the inner frame 2 to facilitate adjustment by the operator.

[0036] The fine-tuning support part 7 includes a plurality of support surfaces, and the support surfaces are parallel to the axis of the pin 5. The plurality of support surfaces include a low-position support surface and a high-position support surface, and the distance from the high-position support surface to the pin 5 is greater than the distance from the low-position support surface to the pin 5. Among the plurality of support surfaces, a transition surface is provided between two adjacent support surfaces, and the transition surface is an arc surface. Specifically, in the present embodiment, the fine-tuning support part 7 includes four support surfaces, and the four support surfaces are all parallel to the axis of the pin 5, and the distances from the four support surfaces to the pin 5 are different. A transition surface is provided between any two adjacent support surfaces, and the transition surface is an arc surface. The fine-tuning support part 7 is attached to the outer surface of the inner frame 2, and the thickness of the fine-tuning support part 7 is not less than 1 cm. A cushion block is provided at the bottom of the outer frame 1, and the cushion block is in direct contact with the fine-tuning support part 7 to prevent the fine-tuning support part 7 from being crushed during the adjustment process.

[0037] A cylinder lifting assembly 8 is also provided inside the inner frame 2 , and the outer frame 1 can be lifted relative to the inner frame 2 by means of the cylinder lifting assembly 8 .

[0038] When it is necessary to fine-tune the height of the legs of the fixing device, first, the outer frame 1 is lifted upward relative to the inner frame 2 by the oil cylinder lifting assembly 8. After the outer frame 1 is lifted, its lower side is separated from the upper end of the fine-tuning support part 7, and a gap is formed. The height of the legs is raised or lowered as needed to adjust the different support surfaces of the fine-tuning support part 7 to the position directly facing the lower side of the outer frame 1. For example, when the legs need to be raised, the support surface farther from the pin 5 is adjusted to the upward direction. If the legs need to be lowered, the support surface closer to the pin 5 is adjusted to the upward direction. The specific adjustment method is to turn the rotating handle 6 located on the front side of the inner frame 2. After the pin 5 structure is rotated to the desired position, the outer frame 1 is reset downward by the oil cylinder lifting assembly 8. After the outer frame 1 moves downward, the pad contacts and fits with the support surface and is pressed tightly, thereby completing the fine adjustment of the height of the legs.

[0039] When the height of the legs of the fixing device needs to be adjusted in a larger range, the outer frame 1 is first lifted upward relative to the inner frame 2 by the oil cylinder lifting assembly 8. After the outer frame 1 is lifted, its lower side is separated from the upper end of the fine-tuning support 7, and a gap is formed. Then, the two stop pins 5 located at the rear side of the inner frame 2 are pulled out, and the entire fixing pin structure is taken out horizontally and inserted into the pin holes 4 located at different heights. After the fixing pin structure is fully inserted, the stop pin is reinserted into the pin 5. Then, the outer frame 1 is reset downward by the oil cylinder lifting assembly 8 to complete the larger range adjustment of the leg height.

[0040] Embodiment three, as Figure 5 As shown, a mobile crushing and screening station leg fixing device includes an outer frame 1 and an inner frame 2. The outer frame 1 and the inner frame 2 are both square tube structures, and the outer frame 1 is sleeved on the outer side of the inner frame 2.

[0041] Six mounting flanges 3 are installed on the rear side of the outer frame 1. The mounting flanges 3 are used to mount the outer frame 1 on the whole machine by bolts. There are three mounting flanges 3 on the left and right sides of the outer frame 1, and the three mounting flanges 3 on a single side are arranged at equal intervals in the vertical direction.

[0042] The front side of the inner frame 2 is provided with a plurality of pin holes 4. The pin holes 4 are provided in three rows and two columns, a total of six. The three rows of pin holes 4 are spaced apart in the vertical direction, and the two columns of pin holes 4 are spaced apart in the horizontal direction. A fixed pin structure is installed in the pin hole 4, and the fixed pin structure includes a pin shaft 5, a fine-tuning support portion 7, and a rotating handle 6. The pin holes 4 spaced apart in the vertical direction are used to adjust the height of the legs over a large range. The pin holes 4 spaced apart in the horizontal direction are used to improve the reliability of the support for the outer frame 1.

[0043] The pin shaft 5 passes through the inner frame 2, thereby supporting the gravity transmitted from the whole machine to the outer frame 1, and a limit pin is passed through one end of the pin shaft 5 located at the rear side of the inner frame 2. The upper end of the fine-tuning support part 7 abuts against the outer frame 1. The rotating handle 6 is located outside the inner frame 2 to facilitate adjustment by the operator.

[0044] The fine-tuning support part 7 includes a plurality of support surfaces, and the support surfaces are parallel to the axis of the pin 5. The plurality of support surfaces include a low-position support surface and a high-position support surface, and the distance from the high-position support surface to the pin 5 is greater than the distance from the low-position support surface to the pin 5. Specifically, in the present embodiment, the fine-tuning support part 7 is a hexagon, and includes six support surfaces, and the six support surfaces are all parallel to the axis of the pin 5, and the distances between the six support surfaces and the pin 5 are different. The fine-tuning support part 7 is attached to the outer surface of the inner frame 2, and the thickness of the fine-tuning support part 7 is not less than 1 cm. A cushion block is provided at the bottom of the outer frame 1, and the cushion block is in direct contact with the fine-tuning support part 7 to prevent the fine-tuning support part 7 from being crushed during the adjustment process.

[0045] A cylinder lifting assembly 8 is also provided inside the inner frame 2 , and the outer frame 1 can be lifted relative to the inner frame 2 by means of the cylinder lifting assembly 8 .

[0046] When it is necessary to fine-tune the height of the legs of the fixing device, first, the outer frame 1 is lifted upward relative to the inner frame 2 by the oil cylinder lifting assembly 8. After the outer frame 1 is lifted, its lower side is separated from the upper end of the fine-tuning support part 7, and a gap is formed. The height of the legs is raised or lowered as needed to adjust the different support surfaces of the fine-tuning support part 7 to the position directly facing the lower side of the outer frame 1. For example, when the legs need to be raised, the support surface farther from the pin 5 is adjusted to the upward direction. If the legs need to be lowered, the support surface closer to the pin 5 is adjusted to the upward direction. The specific adjustment method is to turn the rotating handle 6 located on the front side of the inner frame 2. After the pin 5 structure is rotated to the desired position, the outer frame 1 is reset downward by the oil cylinder lifting assembly 8. After the outer frame 1 moves downward, the pad contacts and fits with the support surface and is pressed tightly, thereby completing the fine adjustment of the height of the legs.

[0047] When the height of the legs of the fixing device needs to be adjusted in a larger range, the outer frame 1 is first lifted upward relative to the inner frame 2 by the oil cylinder lifting assembly 8. After the outer frame 1 is lifted, its lower side is separated from the upper end of the fine-tuning support 7, and a gap is formed. Then, the two stop pins 5 located at the rear side of the inner frame 2 are pulled out, and the entire fixing pin structure is taken out horizontally and inserted into the pin holes 4 located at different heights. After the fixing pin structure is fully inserted, the stop pin is reinserted into the pin 5. Then, the outer frame 1 is reset downward by the oil cylinder lifting assembly 8 to complete the larger range adjustment of the leg height.

Claims

1. A mobile crushing and screening station leg fixing device, characterized in that: It comprises an outer frame and an inner frame. The inner frame is provided with a pin hole. A fixing pin structure is installed in the pin hole. The fixing pin structure comprises a pin shaft and a fine-tuning support part. The upper end of the fine-tuning support part abuts against the outer frame.

2. The mobile crushing and screening station leg fixing device according to claim 1 is characterized in that: The fine-tuning support portion includes a plurality of support surfaces, and the support surfaces are parallel to the axis of the pin shaft.

3. The mobile crushing and screening station leg fixing device according to claim 2 is characterized in that: The plurality of support surfaces include a low support surface and a high support surface, and the distance from the high support surface to the pin is greater than the distance from the low support surface to the pin.

4. The mobile crushing and screening station leg fixing device according to claim 2 is characterized in that: Among the plurality of support surfaces, a transition surface is provided between two adjacent support surfaces, and the transition surface is a curved surface.

5. The mobile crushing and screening station leg fixing device according to claim 2 is characterized in that: The fine-tuning support portion is square.

6. The mobile crushing and screening station leg fixing device according to claim 1 is characterized in that: The fixing pin structure further includes a rotating handle, and the rotating handle is located outside the inner frame.

7. The mobile crushing and screening station leg fixing device according to claim 1 is characterized in that: The outer frame is provided with a flange structure for installation, the flange structure is located at the rear side of the outer frame, and the fixing pin is located at the front side of the inner frame.

8. The mobile crushing and screening station leg fixing device according to claim 1 is characterized in that: The inner frame is provided with a plurality of rows of pin holes spaced apart in the vertical direction.

9. The mobile crushing and screening station leg fixing device according to claim 1 is characterized in that: The inner frame is provided with a plurality of rows of pin holes which are arranged at intervals in the horizontal direction.

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